/* ========================================
   Third Eye Surveillance - Premium Design System
   ======================================== */

   /* Navy = primary / navigation-style buttons; green = quote submit, WhatsApp, pay, send message only */
   :root {
     --bg-page: #151518;
     --bg-elevated: #1e1e22;
     --bg-elevated-hover: #26262c;
     --border-subtle: #2c3548;
     --border-navy: #3d4d6b;
     --border-navy-deep: #243044;
     --cta-navy-deep: #0f172a;
     --cta-navy: #1e3a8a;
     --cta-navy-mid: #1d4ed8;
     --cta-navy-bright: #3b82f6;
     --cta-navy-text: #dbeafe;
     --cta-navy-glow: rgba(37, 99, 235, 0.45);
     --cta-green-dark: #14532d;
     --cta-green: #15803d;
     --cta-green-bright: #22c55e;
     --cta-green-glow: #4ade80;
     --hub-accent: #e2e4e9;
     --primary: #d8dade;
     --primary-dark: #b8bcc6;
     --primary-light: #f2f3f6;
     --accent: #d8dade;
     --accent-light: #eef0f3;
     --on-accent: #16161a;
     --dark: #f8fafc;
     --dark-soft: #e2e8f0;
     --gray: #94a3b8;
     --gray-light: #aaaaaa;
     --gray-bg: #222228;
     --white: #ffffff;
     --radius: 12px;
     --radius-md: 12px;
     --radius-lg: 20px;
     --radius-xl: 28px;
     --shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
     --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
     --transition: all 0.3s ease;
     --atmosphere-1: rgba(200, 210, 230, 0.04);
     --atmosphere-2: rgba(160, 170, 200, 0.03);
   }
   
   * { margin: 0; padding: 0; box-sizing: border-box; }
   
   body { 
     font-family: Arial, Helvetica, sans-serif;
     background: var(--bg-page);
     color: var(--dark-soft); 
     line-height: 1.6;
     scroll-behavior: smooth;
     position: relative;
     min-height: 100vh;
   }

   /* Subtle depth: soft cool highlights so the UI feels less flat */
   body::before {
     content: '';
     position: fixed;
     inset: 0;
     pointer-events: none;
     z-index: 0;
     background:
       radial-gradient(ellipse 120% 80% at 0% -20%, var(--atmosphere-1), transparent 55%),
       radial-gradient(ellipse 90% 60% at 100% 0%, var(--atmosphere-2), transparent 50%),
       radial-gradient(ellipse 70% 50% at 50% 100%, rgba(215, 218, 224, 0.025), transparent 45%);
   }

   body > * { position: relative; z-index: 1; }
   
   h1, h2, h3, .logo { font-family: Arial, Helvetica, sans-serif; }
   
   .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
   .section-padding { padding: 100px 0; }
   .bg-light { background: var(--bg-page); }

   .text-muted { color: var(--gray-light) !important; }
   .small { font-size: 0.9rem; }
   .mb-2 { margin-bottom: 0.5rem; }
   .mb-3 { margin-bottom: 1rem; }
   
   /* ========================================
      SECTION HEADER
      ======================================== */
   .section-header {
     text-align: center;
     margin-bottom: 60px;
     max-width: 600px;
     margin-left: auto;
     margin-right: auto;
   }
   .section-header h1,
   .section-header h2 {
     font-size: 2.5rem;
     font-weight: 800;
     color: var(--dark);
     margin-bottom: 16px;
     line-height: 1.2;
   }
   .section-header h1 span,
   .section-header h2 span { color: var(--primary); }
   .section-header p {
     font-size: 1.15rem;
     color: var(--gray-light);
     line-height: 1.7;
   }
   
   /* ========================================
      TOP BAR - Contact Info
      ======================================== */
   .top-bar {
     background: var(--bg-page);
     color: rgba(255,255,255,0.92);
     padding: 10px 0;
     font-size: 0.9rem;
     font-weight: 500;
     min-height: 48px;
     display: flex;
     align-items: center;
     border-bottom: 1px solid var(--border-navy-deep);
     box-shadow: 0 1px 0 rgba(70, 90, 130, 0.12);
   }
   
   .top-bar .top-bar-inner {
     max-width: 1300px;
     margin: 0 auto;
     padding: 0 32px;
     display: flex;
     justify-content: flex-end;
     align-items: center;
     gap: 28px;
   }
   
   .top-bar a {
     color: rgba(255,255,255,0.9);
     text-decoration: none;
     display: inline-flex;
     align-items: center;
     gap: 8px;
     transition: var(--transition);
   }
   
   .top-bar a:hover { color: var(--cta-navy-text); }

   .top-bar a.top-bar-call-btn {
     padding: 6px 16px;
     border-radius: 999px;
     font-weight: 800;
     font-size: 0.82rem;
     letter-spacing: 0.04em;
     text-transform: uppercase;
     color: #f8fafc !important;
     background: linear-gradient(165deg, #1d4ed8 0%, #2563eb 45%, #3b82f6 100%);
     border: 1px solid rgba(147, 197, 253, 0.55);
     box-shadow: 0 2px 12px rgba(37, 99, 235, 0.35);
   }

   .top-bar a.top-bar-call-btn:hover {
     color: #fff !important;
     filter: brightness(1.08);
     box-shadow: 0 4px 18px rgba(59, 130, 246, 0.45);
     transform: translateY(-1px);
   }

   /* Memorable landline — gold styling wherever the full number is shown */
   .phone-link--golden {
     font-weight: 800;
     letter-spacing: 0.06em;
     text-decoration: none;
     background: linear-gradient(180deg, #fff7d6 0%, #fde68a 35%, #f59e0b 85%, #d97706 100%);
     -webkit-background-clip: text;
     background-clip: text;
     color: transparent !important;
     -webkit-text-fill-color: transparent;
     filter: drop-shadow(0 1px 0 rgba(180, 83, 9, 0.35));
   }

   a.phone-link--golden:hover,
   a:hover .phone-link--golden {
     filter: drop-shadow(0 1px 0 rgba(180, 83, 9, 0.35)) brightness(1.08);
   }

   @supports not (-webkit-background-clip: text) {
     .phone-link--golden {
       color: #fbbf24 !important;
       -webkit-text-fill-color: unset;
       background: none;
     }
   }
   
   @media (max-width: 768px) {
     .top-bar { font-size: 0.85rem; }
     .top-bar .top-bar-inner { justify-content: center; gap: 20px; padding: 0 16px; }
   }
   
   /* ========================================
      NAVBAR - Premium & Catchy
      ======================================== */
   .navbar {
     min-height: 96px;
     background: rgba(21, 21, 24, 0.92);
     backdrop-filter: blur(12px);
     -webkit-backdrop-filter: blur(12px);
     display: flex;
     align-items: center;
     position: sticky;
     top: 0;
     z-index: 1000;
     border-bottom: 1px solid var(--border-navy);
     box-shadow:
       0 1px 0 rgba(255, 255, 255, 0.04),
       inset 0 -1px 0 rgba(45, 60, 90, 0.35);
   }
   
   .nav-container {
     width: 100%;
     max-width: 1300px;
     margin: 0 auto;
     padding: 0 24px;
     display: flex;
     justify-content: space-between;
     align-items: center;
     gap: 16px;
     min-width: 0;
   }
   
   .logo { 
     font-family: Arial, Helvetica, sans-serif;
     font-weight: 800; 
     font-size: 1.6rem; 
     text-decoration: none; 
     color: #fff;
     letter-spacing: -0.02em;
     transition: var(--transition);
     flex-shrink: 1;
     min-width: 0;
     line-height: 1.15;
   }
   .logo span { 
     color: var(--hub-accent);
   }
   .logo:hover { opacity: 0.9; }
   
   .nav-menu {
     display: flex;
     align-items: center;
     flex-wrap: nowrap;
     justify-content: flex-end;
     gap: 4px;
     min-width: 0;
   }
   
   .nav-menu a { 
     text-decoration: none; 
     margin-left: 0;
     padding: 10px 12px;
     font-weight: 600; 
     font-size: 0.8125rem;
     color: var(--gray-light); 
     border-radius: 14px;
     border: 1px solid transparent;
     transition: var(--transition);
     white-space: nowrap;
   }
   
   .nav-menu a:hover { 
     color: var(--hub-accent); 
     background: rgba(215, 218, 224, 0.1);
     border-color: rgba(90, 110, 150, 0.45);
     transform: translateY(-1px);
     box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
   }

   .nav-menu a:not(.btn-quote):hover {
     color: var(--cta-navy-text) !important;
     box-shadow:
       0 4px 14px rgba(0, 0, 0, 0.2),
       inset 0 -3px 0 0 var(--cta-navy-mid);
   }

   .nav-menu a[href="installation-quotation.html"]:not(.btn-quote) {
     color: var(--cta-navy-text) !important;
     border-color: rgba(59, 130, 246, 0.45) !important;
     background: rgba(30, 58, 138, 0.35) !important;
   }

   .nav-menu a[href="installation-quotation.html"]:not(.btn-quote):hover {
     color: #fff !important;
     background: rgba(37, 99, 235, 0.4) !important;
     border-color: rgba(96, 165, 250, 0.65) !important;
     box-shadow: none;
   }

   .nav-menu a.btn-quote {
     background: linear-gradient(165deg, var(--cta-navy-deep) 0%, var(--cta-navy) 45%, var(--cta-navy-mid) 100%) !important;
     color: #f8fafc !important;
     font-weight: 700 !important;
     padding: 10px 16px !important;
     border-radius: 14px !important;
     margin-left: 2px !important;
     box-shadow:
       0 0 0 1px rgba(96, 165, 250, 0.35),
       0 4px 22px var(--cta-navy-glow);
     border: 1px solid rgba(147, 197, 253, 0.45) !important;
     text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
   }
   .nav-menu a.btn-quote:hover {
     color: #fff !important;
     transform: translateY(-2px);
     box-shadow:
       0 0 0 1px #93c5fd,
       0 8px 32px rgba(59, 130, 246, 0.5);
     border-color: #93c5fd !important;
     filter: brightness(1.08);
   }
   
   .nav-phone {
     display: inline-flex;
     align-items: center;
     gap: 6px;
     font-weight: 700 !important;
     color: var(--primary) !important;
   }
   
   .btn-quote { 
     background: linear-gradient(165deg, var(--cta-navy-deep) 0%, var(--cta-navy) 45%, var(--cta-navy-mid) 100%) !important; 
     color: #f8fafc !important; 
     padding: 12px 24px !important; 
     border-radius: 50px; 
     border: 1px solid rgba(147, 197, 253, 0.45) !important;
     box-shadow: 0 4px 20px var(--cta-navy-glow);
     transition: var(--transition);
   }
   
   .btn-quote:hover { 
     transform: translateY(-2px); 
     box-shadow: 0 8px 28px rgba(59, 130, 246, 0.5);
     filter: brightness(1.06);
   }

   /* Wide screens: slightly roomier links */
   @media (min-width: 1280px) {
     .nav-menu a { padding: 12px 14px; font-size: 0.875rem; }
     .nav-menu a.btn-quote { padding: 12px 20px !important; }
     .nav-menu a[href="installation-quotation.html"]:not(.btn-quote) { padding: 12px 16px !important; }
   }
   
   /* ========================================
      HERO SLIDER
      ======================================== */
   .hero-wrapper {
     margin-top: 24px;
     padding: 0 24px;
   }
   .hero-message {
    text-align: center;
    font-weight: bold;
    font-size: 2rem;
    padding: 14px 16px;
    margin: 0 auto;
    max-width: 1300px;
    color: var(--gray-light);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    z-index: 10;
}
   .hero-slider {
     position: relative;
     max-width: 1300px;
     margin: 0 auto;
     height: 560px;
     background: linear-gradient(135deg, #1c1c20 0%, #25252c 100%);
     border-radius: var(--radius-xl);
     overflow: hidden;
     box-shadow: var(--shadow-lg);
   }
   
   .slide {
     position: absolute;
     inset: 0;
     opacity: 0;
     transition: opacity 1s ease;
     display: flex;
     align-items: center;
   }
   .slide.active { opacity: 1; }
   
   .slide img {
     position: absolute;
     width: 100%;
     height: 100%;
     object-fit: cover;
     opacity: 0.70;
   }
   
   .slide-overlay {
     position: absolute;
     inset: 0;
     background: linear-gradient(105deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.5) 50%, transparent 100%);
   }
   
   .slide-content {
     position: relative;
     z-index: 10;
     padding-left: 64px;
     color: white;
     max-width: 640px;
   }
   
   .badge { 
     display: inline-block;
     background: rgba(215, 218, 224, 0.15);
     color: var(--hub-accent);
     border: 1px solid rgba(215, 218, 224, 0.35);
     padding: 8px 16px; 
     border-radius: 50px; 
     font-size: 0.75rem; 
     font-weight: 800; 
     text-transform: uppercase; 
     letter-spacing: 1.5px;
     margin-bottom: 20px;
   }
   
   .slide-content h1 { 
     font-size: 3.75rem; 
     margin-bottom: 24px; 
     line-height: 1.1;
     font-weight: 800;
     letter-spacing: -0.03em;
   }
   .slide-content h1 span { 
     color: var(--hub-accent);
   }
   
   .slide-content p {
     font-size: 1.2rem;
     opacity: 0.95;
     margin-bottom: 32px;
     line-height: 1.7;
   }
   
   /* CTA GROUP & BUTTONS */
   .cta-group {
     display: flex;
     gap: 16px;
     flex-wrap: wrap;
   }
   
   .btn-main {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     background: linear-gradient(165deg, var(--cta-navy-deep) 0%, var(--cta-navy) 40%, var(--cta-navy-mid) 100%);
     color: #f8fafc !important;
     padding: 16px 32px;
     border-radius: 50px;
     font-weight: 700;
     font-size: 1rem;
     text-decoration: none;
     border: 1px solid rgba(147, 197, 253, 0.4);
     cursor: pointer;
     transition: var(--transition);
     box-shadow: 0 4px 22px var(--cta-navy-glow);
   }
   
   .btn-main:hover {
     transform: translateY(-3px);
     box-shadow: 0 12px 36px rgba(59, 130, 246, 0.5);
     filter: brightness(1.06);
   }
   
   .btn-outline {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     background: transparent;
     color: white !important;
     padding: 16px 32px;
     border-radius: 50px;
     font-weight: 700;
     font-size: 1rem;
     text-decoration: none;
     border: 2px solid rgba(255,255,255,0.6);
     cursor: pointer;
     transition: var(--transition);
   }
   
   .btn-outline:hover {
     background: rgba(255,255,255,0.1);
     border-color: white;
   }
   
   .btn-pkg {
     display: block;
     text-align: center;
     background: linear-gradient(165deg, var(--cta-navy-deep) 0%, var(--cta-navy) 45%, var(--cta-navy-mid) 100%);
     color: #f8fafc !important;
     padding: 16px 28px;
     border-radius: var(--radius);
     font-weight: 700;
     font-size: 1rem;
     text-decoration: none;
     transition: var(--transition);
     border: 1px solid rgba(147, 197, 253, 0.35);
     box-shadow: 0 4px 18px var(--cta-navy-glow);
     margin-top: 8px;
   }
   
   .btn-pkg:hover {
     transform: translateY(-2px);
     box-shadow: 0 8px 28px rgba(59, 130, 246, 0.45);
     filter: brightness(1.06);
   }
   
   /* Slider Dots */
   .slider-dots {
     position: absolute;
     bottom: 36px;
     left: 50%;
     transform: translateX(-50%);
     display: flex;
     gap: 12px;
   }
   .dot { 
     width: 10px; 
     height: 10px; 
     border: none; 
     background: rgba(255,255,255,0.35); 
     border-radius: 50%; 
     cursor: pointer; 
     transition: var(--transition);
   }
   .dot.active { 
     background: var(--accent); 
     width: 32px;
     border-radius: 5px;
   }
   
   /* ========================================
      TRUST BAR - Problem-Solution Focus
      ======================================== */
   .trust-bar {
     margin-top: -50px;
     position: relative;
     z-index: 10;
   }
   
   .grid-stats { 
     display: grid; 
     grid-template-columns: repeat(4, 1fr); 
     gap: 20px;
     padding: 0 24px;
   }
   
   .stat-item {
     background: var(--bg-elevated);
     padding: 28px 24px;
     border-radius: var(--radius-lg);
     text-align: center;
     box-shadow: var(--shadow);
     border: 1px solid var(--border-subtle);
     transition: var(--transition);
   }
   
   .stat-item:hover {
     transform: translateY(-4px);
     background: var(--bg-elevated-hover);
     border-color: rgba(215, 218, 224, 0.25);
     box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.05);
   }
   
   .stat-item h3 {
     font-size: 2rem;
     font-weight: 800;
     color: var(--primary);
     margin-bottom: 4px;
     font-family: Arial, Helvetica, sans-serif;
   }
   
   .stat-item p {
     font-size: 0.9rem;
     font-weight: 600;
     color: var(--gray);
   }
   
   /* ========================================
      STEP CARDS - Problem-Solution
      ======================================== */
   .step-card { 
     background: var(--bg-elevated); 
     padding: 40px 36px; 
     border-radius: var(--radius-lg); 
     box-shadow: var(--shadow);
     border: 1px solid var(--border-subtle);
     transition: var(--transition);
     position: relative;
     overflow: hidden;
   }
   
   .step-card::before {
     content: '';
     position: absolute;
     top: 0;
     left: 0;
     width: 100%;
     height: 4px;
     background: linear-gradient(90deg, var(--primary), var(--accent));
     opacity: 0;
     transition: var(--transition);
   }
   
   .step-card:hover {
     transform: translateY(-6px);
     box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.04);
   }
   
   .step-card:hover::before { opacity: 1; }
   
   .step-num { 
     font-size: 2.5rem; 
     font-weight: 900; 
     color: var(--border-subtle); 
     margin-bottom: 16px;
     font-family: Arial, Helvetica, sans-serif;
     line-height: 1;
   }
   
   .step-card h3 {
     font-size: 1.35rem;
     font-weight: 700;
     color: var(--dark);
     margin-bottom: 12px;
   }
   
   .step-card p {
     color: var(--gray);
     font-size: 1rem;
     line-height: 1.7;
   }
   
   /* ========================================
      PACKAGE CARDS - Catchy & Feature-Rich
      ======================================== */
   .package-card { 
     background: var(--bg-elevated); 
     padding: 40px 36px; 
     border-radius: var(--radius-lg); 
     border: 1px solid var(--border-subtle);
     text-align: center;
     transition: var(--transition);
     position: relative;
     overflow: hidden;
   }
   
   .package-card::after {
     content: '3-Year Free Upgrade';
     position: absolute;
     top: 16px;
     right: -32px;
     background: var(--hub-accent);
     color: var(--on-accent);
     font-size: 0.7rem;
     font-weight: 700;
     padding: 6px 40px;
     transform: rotate(45deg);
     letter-spacing: 0.5px;
   }
   
   .package-card:hover {
     border-color: var(--primary);
     transform: translateY(-8px);
     box-shadow: var(--shadow-lg);
   }
   
   .package-card h3 {
     font-size: 1.5rem;
     font-weight: 800;
     color: var(--dark);
     margin-bottom: 4px;
   }
   
   .package-card .subtitle {
     font-size: 0.9rem;
     color: var(--gray);
     font-weight: 600;
     margin-bottom: 20px;
   }
   
   .package-card .price { 
     font-size: 3rem; 
     font-weight: 900; 
     margin: 20px 0; 
     color: var(--primary);
     font-family: Arial, Helvetica, sans-serif;
   }
   
   .package-card .price span { 
     font-size: 1rem; 
     color: var(--gray-light); 
     font-weight: 600;
   }
   
   .package-card ul {
     list-style: none;
     margin: 24px 0;
     text-align: left;
   }
   
   .package-card ul li {
     padding: 10px 0;
     font-size: 0.95rem;
     color: var(--dark-soft);
     display: flex;
     align-items: center;
     gap: 12px;
     border-bottom: 1px solid rgba(255, 255, 255, 0.08);
   }
   
   .package-card ul li:last-child { border-bottom: none; }
   
   .package-card ul li::before {
     content: '✓';
     display: inline-flex;
     align-items: center;
     justify-content: center;
     width: 24px;
     height: 24px;
     background: var(--hub-accent);
     color: var(--on-accent);
     font-size: 0.75rem;
     font-weight: 800;
     border-radius: 50%;
     flex-shrink: 0;
   }
   
   /* GRIDS */
   .grid-3 { 
     display: grid; 
     grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
     gap: 28px; 
   }
   
   /* ========================================
      FOOTER
      ======================================== */
   /* ========================================
      FOOTER - Contact & Quick Links
      ======================================== */
   .footer { 
     background: var(--bg-page); 
     color: rgba(255,255,255,0.92); 
     padding: 64px 24px 40px;
     border-top: 1px solid var(--border-subtle);
   }
   
   .footer-inner {
     max-width: 1200px;
     margin: 0 auto;
     display: grid;
     grid-template-columns: 2fr 1fr 1fr;
     gap: 48px;
     text-align: left;
   }
   
   .footer-brand p { margin: 8px 0; opacity: 0.9; font-size: 0.95rem; }
   .footer-brand strong { color: var(--accent-light); }
   
   .footer-links h4 {
     font-size: 1.05rem;
     font-weight: 800;
     margin-bottom: 18px;
     color: var(--hub-accent);
     text-transform: uppercase;
     letter-spacing: 0.12em;
     padding-bottom: 12px;
     border-bottom: 2px solid var(--border-navy);
   }
   
   .footer-links ul {
     list-style: none;
     margin: 0;
     padding: 0;
     display: flex;
     flex-wrap: wrap;
     gap: 12px 12px;
     align-items: center;
     justify-content: flex-start;
     width: 100%;
   }
   .footer-links li { margin: 0; }
   .footer-links a {
     display: inline-block;
     color: var(--hub-accent);
     text-decoration: none;
     font-size: 0.98rem;
     font-weight: 600;
     padding: 10px 16px;
     background: var(--bg-elevated);
     border: 1px solid var(--border-navy);
     border-radius: var(--radius);
     transition: var(--transition);
     white-space: nowrap;
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
   }
   .footer-links a:hover {
     color: var(--cta-navy-text) !important;
     background: rgba(30, 58, 138, 0.28);
     border-color: rgba(59, 130, 246, 0.5);
     box-shadow:
       0 4px 16px rgba(0, 0, 0, 0.35),
       inset 0 -3px 0 0 var(--cta-navy-mid);
     transform: translateY(-2px);
   }
   .footer-links a:focus-visible {
     outline: 2px solid var(--cta-navy-mid);
     outline-offset: 3px;
   }
   
   .footer-contact h4 {
     font-size: 1rem;
     font-weight: 700;
     margin-bottom: 20px;
     color: white;
     text-transform: uppercase;
     letter-spacing: 1px;
   }
   
   .footer-contact p { margin: 8px 0; opacity: 0.9; font-size: 0.95rem; }
   .footer-contact a { color: var(--hub-accent); text-decoration: none; transition: var(--transition); }
   .footer-contact a:hover {
     color: var(--cta-navy-text);
     text-decoration: none;
     box-shadow: inset 0 -3px 0 0 var(--cta-navy-mid);
   }
   
   .footer-bottom {
     grid-column: 1 / -1;
     text-align: center;
     padding-top: 32px;
     margin-top: 32px;
     border-top: 1px solid var(--border-navy);
     font-size: 0.9rem;
     opacity: 0.8;
   }
   
   @media (max-width: 768px) {
     .footer-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
     .footer-links h4 {
       border-bottom: none;
       padding-bottom: 0;
     }
     .footer-links ul {
       justify-content: center;
       gap: 10px 10px;
     }
   }
   
   /* ========================================
      MOBILE MENU
      ======================================== */
   .menu-toggle {
     display: none;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     gap: 5px;
     width: 44px;
     height: 44px;
     background: transparent;
     border: 1px solid rgba(80, 100, 140, 0.45);
     border-radius: 12px;
     cursor: pointer;
     z-index: 1002;
     flex-shrink: 0;
     transition: var(--transition);
   }

   .menu-toggle:hover {
     border-color: rgba(120, 140, 180, 0.6);
     background: rgba(45, 60, 95, 0.25);
   }
   
   .bar {
     width: 22px;
     height: 3px;
     background: var(--hub-accent);
     border-radius: 10px;
     transition: var(--transition);
   }

   /* Collapse to hamburger before links wrap / overlap */
   @media (max-width: 1100px) {
     .navbar { min-height: 72px; }

     .menu-toggle { display: flex; }

     .logo {
       font-size: clamp(1.05rem, 3.5vw, 1.45rem);
     }

     .nav-menu {
       position: fixed;
       top: calc(48px + 72px);
       left: 0;
       width: 100%;
       max-width: 100vw;
       max-height: calc(100vh - 120px);
       overflow-x: hidden;
       overflow-y: auto;
       -webkit-overflow-scrolling: touch;
       flex-direction: column;
       flex-wrap: nowrap;
       align-items: stretch;
       justify-content: flex-start;
       gap: 0;
       padding: 12px 0 28px;
       background: rgba(26, 28, 34, 0.98);
       backdrop-filter: blur(16px);
       -webkit-backdrop-filter: blur(16px);
       border-top: 1px solid var(--border-navy);
       border-bottom: 1px solid var(--border-navy-deep);
       box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
       text-align: center;
       transform: translateX(-100%);
       visibility: hidden;
       transition: transform 0.3s ease, visibility 0.3s;
       z-index: 1001;
     }

     .nav-menu.active {
       transform: translateX(0);
       visibility: visible;
     }

     .nav-menu a {
       white-space: normal;
       margin: 0 16px;
       padding: 14px 20px;
       font-size: 1rem;
       border-radius: 14px;
       border: 1px solid transparent;
     }

     .nav-menu a:hover {
       border-color: rgba(90, 110, 150, 0.45);
     }

     .nav-menu a:not(.btn-quote):hover {
       box-shadow: inset 0 -3px 0 0 var(--cta-navy-mid);
     }

     .nav-menu a[href="installation-quotation.html"]:not(.btn-quote) {
       color: var(--cta-navy-text) !important;
       background: rgba(30, 58, 138, 0.35) !important;
       border-color: rgba(59, 130, 246, 0.45) !important;
     }

     .nav-menu a.btn-quote {
       background: linear-gradient(165deg, var(--cta-navy-deep) 0%, var(--cta-navy) 45%, var(--cta-navy-mid) 100%) !important;
       color: #f8fafc !important;
       border-color: rgba(147, 197, 253, 0.45) !important;
       box-shadow:
         0 0 0 1px rgba(96, 165, 250, 0.35),
         0 6px 24px var(--cta-navy-glow) !important;
     }

     .nav-menu a[href="installation-quotation.html"],
     .nav-menu a.btn-quote {
       margin: 8px 20px !important;
       width: auto !important;
       max-width: none !important;
     }

     .menu-toggle.is-active .bar:nth-child(2) { opacity: 0; }
     .menu-toggle.is-active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
     .menu-toggle.is-active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
   }
   
   @media (max-width: 768px) {
     .slide-content { padding: 0 24px; text-align: center; }
     .slide-content h1 { font-size: 2.5rem; }
     .cta-group { justify-content: center; }
   
     .grid-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
     .trust-bar { margin-top: -30px; }
   }
   
   /* ========================================
      CONTACT PAGE - Fancy Form
      ======================================== */
   .contact-page {
     padding: 100px 0;
     min-height: 85vh;
   }
   
   .contact-grid {
     display: grid;
     grid-template-columns: 1fr 1.1fr;
     gap: 80px;
     align-items: center;
   }
   
   .contact-info h1 {
     font-size: 3.25rem;
     margin: 20px 0;
     font-weight: 800;
     line-height: 1.15;
   }
   
   .contact-info h1 span { color: var(--primary); }
   
   .contact-info > p {
     font-size: 1.15rem;
     color: var(--gray);
     line-height: 1.7;
   }
   
   .info-item {
     margin-top: 28px;
     padding: 20px;
     background: rgba(215, 218, 224, 0.06);
     border-radius: var(--radius);
     border-left: 4px solid var(--hub-accent);
   }
   
   .info-item strong {
     display: block;
     color: var(--primary);
     text-transform: uppercase;
     font-size: 0.75rem;
     letter-spacing: 1.5px;
     font-weight: 700;
   }
   
   .info-item p { margin-top: 4px; font-weight: 500; }
   
   /* FANCY FORM CONTAINER */
   .form-container {
     background: var(--bg-elevated);
     padding: 48px;
     border-radius: var(--radius-xl);
     box-shadow: var(--shadow-lg);
     border: 1px solid var(--border-subtle);
   }
   
   .form-group {
     margin-bottom: 24px;
   }
   
   .form-group label {
     display: block;
     margin-bottom: 10px;
     font-weight: 700;
     font-size: 0.9rem;
     color: var(--dark);
   }
   
   .form-group input, 
   .form-group select, 
   .form-group textarea {
     width: 100%;
     padding: 16px 20px;
     border: 1px solid var(--border-subtle);
     border-radius: var(--radius);
     font-family: inherit;
     font-size: 1rem;
     transition: var(--transition);
     background: var(--gray-bg);
     color: var(--dark);
   }
   
   .form-group input:hover,
   .form-group select:hover,
   .form-group textarea:hover {
     background: #1c1c1c;
     border-color: #333;
   }
   
   .form-group input:focus, 
   .form-group select:focus,
   .form-group textarea:focus {
     outline: none;
     border-color: var(--hub-accent);
     background: #1a1a1a;
     box-shadow: 0 0 0 3px rgba(215, 218, 224, 0.15);
   }
   
   .form-group textarea { 
     resize: vertical; 
     min-height: 120px;
   }
   
   .w-full { width: 100%; cursor: pointer; border: none; padding: 16px !important; font-weight: 700; font-size: 1rem; margin-top: 8px; }
   
   @media (max-width: 768px) {
     .contact-grid { grid-template-columns: 1fr; text-align: center; gap: 48px; }
     .contact-info h1 { font-size: 2.25rem; }
     .form-container { padding: 32px; }
     .info-item { text-align: left; }
   }
   
   /* ========================================
      PACKAGES PAGE - Premium Selector & Display
      ======================================== */
   .packages-page { 
     padding: 80px 0; 
     background: var(--bg-page);
   }
   
   .plan-controls {
     max-width: 1100px;
     margin: 0 auto 34px;
     padding: 26px 26px;
     background: var(--bg-elevated);
     border-radius: var(--radius-xl);
     box-shadow: var(--shadow);
     border: 1px solid var(--border-subtle);
     display: grid;
     gap: 22px;
   }
   
   .control-group {
     display: grid;
     gap: 10px;
   }
   
   .control-label {
     font-weight: 800;
     color: var(--dark);
     font-size: 0.95rem;
     letter-spacing: -0.01em;
   }
   
   .control-options {
     display: flex;
     flex-wrap: wrap;
     gap: 10px;
   }
   
   .control-hint {
     font-size: 0.9rem;
     color: var(--gray);
     line-height: 1.5;
   }
   
   .pill-btn {
     background: var(--bg-elevated);
     border: 1px solid var(--border-subtle);
     padding: 12px 16px;
     border-radius: 999px;
     cursor: pointer;
     font-weight: 800;
     color: var(--gray);
     transition: var(--transition);
     display: inline-flex;
     align-items: center;
     gap: 10px;
   }
   
   .pill-btn:hover {
     border-color: var(--hub-accent);
     color: var(--hub-accent);
     background: rgba(215, 218, 224, 0.06);
   }
   
   .pill-btn.active {
     border-color: var(--hub-accent);
     background: var(--hub-accent);
     color: var(--on-accent) !important;
     box-shadow: 0 8px 24px rgba(215, 218, 224, 0.25);
   }
   
   .pill-btn.is-disabled,
   .pill-btn:disabled {
     opacity: 0.55;
     cursor: not-allowed;
     box-shadow: none;
   }
   
   .pill-badge {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     padding: 5px 10px;
     border-radius: 999px;
     background: rgba(215, 218, 224, 0.12);
     color: var(--hub-accent);
     font-size: 0.75rem;
     font-weight: 900;
     letter-spacing: 0.02em;
   }
   
   .package-selector {
     display: flex;
     justify-content: center;
     flex-wrap: wrap;
     gap: 12px;
     margin-bottom: 48px;
   }
   
   .select-btn {
     background: var(--bg-elevated);
     border: 1px solid var(--border-subtle);
     padding: 18px 32px;
     border-radius: 50px;
     cursor: pointer;
     text-align: center;
     transition: var(--transition);
     font-weight: 700;
     font-size: 1rem;
     color: var(--gray);
   }
   
   .select-btn:hover {
     border-color: var(--hub-accent);
     color: var(--hub-accent);
     background: rgba(215, 218, 224, 0.06);
   }
   
   .select-btn.active {
     border-color: var(--hub-accent);
     background: var(--hub-accent);
     color: var(--on-accent) !important;
     box-shadow: 0 8px 24px rgba(215, 218, 224, 0.35);
   }
   
   .display-container {
     background: var(--bg-elevated);
     border-radius: var(--radius-xl);
     box-shadow: var(--shadow-lg);
     overflow: hidden;
     border: 1px solid var(--border-subtle);
   }
   
   .display-grid {
     display: grid;
     grid-template-columns: 1.4fr 1fr;
   }
   
   .details-side { 
     padding: 56px; 
   }
   
   .details-side h2 { 
     font-size: 2.25rem; 
     margin-bottom: 12px; 
     color: var(--dark);
     font-weight: 800;
   }
   
   .details-side > p { 
     color: var(--gray); 
     font-size: 1.1rem; 
     margin-bottom: 32px;
     line-height: 1.6;
   }
   
   #feature-list { list-style: none; }
   #feature-list li {
     margin-bottom: 16px;
     display: flex;
     align-items: center;
     gap: 14px;
     font-size: 1.05rem;
     padding: 12px 16px;
     background: rgba(215, 218, 224, 0.06);
     border-radius: var(--radius);
     border-left: 4px solid var(--hub-accent);
   }
   
   #feature-list li span {
     color: var(--hub-accent);
     font-weight: 800;
     font-size: 1rem;
   }
   
   .price-side {
     background: var(--gray-bg);
     padding: 56px;
     display: flex;
     align-items: center;
   }
   
   .price-card {
     background: var(--bg-elevated);
     width: 100%;
     padding: 40px;
     border-radius: var(--radius-lg);
     text-align: center;
     box-shadow: var(--shadow);
     border: 1px solid var(--border-subtle);
   }
   
   .main-price { 
     font-size: 3.5rem; 
     font-weight: 900; 
     color: var(--primary); 
     font-family: Arial, Helvetica, sans-serif;
   }
   
   .main-price .currency { font-size: 1.5rem; vertical-align: top; margin-top: 12px; }
   .main-price .period { font-size: 1rem; color: var(--gray-light); font-weight: 500; }
   
   .divider { 
     height: 2px; 
     background: linear-gradient(90deg, transparent, var(--border-subtle), transparent); 
     margin: 28px 0; 
   }
   
   .install-line { 
     display: flex; 
     justify-content: space-between; 
     margin-bottom: 20px; 
     font-size: 1.1rem;
     font-weight: 600;
   }
   
   .contract-note { 
     font-size: 0.85rem; 
     color: var(--gray-light); 
     margin-bottom: 28px; 
   }
   
   .trust-icons {
     display: flex;
     justify-content: center;
     gap: 24px;
     margin-top: 24px;
     font-size: 0.85rem;
     font-weight: 700;
     color: var(--hub-accent);
   }
   
   @media (max-width: 900px) {
     .display-grid { grid-template-columns: 1fr; }
     .package-selector { flex-direction: row; justify-content: center; }
   }
   
   /* ========================================
      CHECKOUT PAGE - Side-by-Side Form + Payment
      ======================================== */
   .checkout-page {
     padding: 80px 24px 100px;
     background: var(--bg-page);
     min-height: 100vh;
   }
   
   .checkout-page .checkout-container {
     max-width: 1100px;
     margin: 0 auto;
   }
   
   .checkout-page h1 {
     font-size: 2.25rem;
     font-weight: 800;
     color: var(--dark);
     text-align: center;
     margin-bottom: 12px;
   }
   
   .checkout-error {
     background: #fef2f2;
     color: #b91c1c;
     padding: 16px 20px;
     border-radius: var(--radius);
     margin-bottom: 24px;
     border: 1px solid #fecaca;
     font-weight: 500;
   }
   
   .checkout-sub {
     text-align: center;
     color: var(--gray);
     margin-bottom: 48px;
     font-size: 1.1rem;
     line-height: 1.6;
   }
   
   .checkout-grid {
     display: grid;
     grid-template-columns: 1fr 400px;
     gap: 40px;
     align-items: start;
   }
   
   .checkout-form {
     background: var(--bg-elevated);
     padding: 40px;
     border-radius: var(--radius-xl);
     box-shadow: var(--shadow-lg);
     border: 1px solid var(--border-subtle);
   }
   
   .checkout-form .form-row {
     display: grid;
     grid-template-columns: 90px 1fr;
     gap: 16px;
   }
   
   .checkout-form .form-row.form-row-split {
     grid-template-columns: 1fr 140px;
   }
   
   @media (max-width: 900px) {
     .checkout-grid { grid-template-columns: 1fr; }
     .checkout-card { position: static; }
     .checkout-form .form-row,
     .checkout-form .form-row.form-row-split {
       grid-template-columns: 1fr;
     }
   }
   
   .checkout-form .form-group {
     margin-bottom: 24px;
   }
   
   .checkout-form label {
     display: block;
     margin-bottom: 10px;
     font-weight: 700;
     font-size: 0.9rem;
     color: var(--dark);
   }
   
   .checkout-form input {
     width: 100%;
     padding: 16px 20px;
     border: 1px solid var(--border-subtle);
     border-radius: var(--radius);
     font-family: inherit;
     font-size: 1rem;
     background: var(--gray-bg);
     color: var(--dark);
     transition: var(--transition);
   }
   
  .checkout-form input:focus {
    outline: none;
    border-color: var(--hub-accent);
    background: #1a1a1a;
    box-shadow: 0 0 0 3px rgba(215, 218, 224, 0.15);
  }

  .installation-date-picker {
    margin-bottom: 24px;
  }
  .installation-date-picker .date-loading {
    color: var(--gray);
    font-size: 0.95rem;
    padding: 12px 0;
  }
  .installation-date-picker .date-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    max-height: 220px;
    overflow-y: auto;
    padding: 4px 0;
  }
  .installation-date-picker .date-btn {
    padding: 14px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    background: var(--gray-bg);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark-soft);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
  }
  .installation-date-picker .date-btn:hover {
    border-color: var(--hub-accent);
    background: rgba(215, 218, 224, 0.08);
    color: var(--hub-accent);
  }
  .installation-date-picker .date-btn.selected {
    border-color: var(--hub-accent);
    background: var(--hub-accent);
    color: var(--on-accent);
  }
  .installation-date-picker .date-btn .slot-info {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.9;
    margin-top: 4px;
  }
  
  .checkout-card {
     background: var(--bg-elevated);
     padding: 40px;
     border-radius: var(--radius-xl);
     box-shadow: var(--shadow-lg);
     border: 1px solid var(--border-subtle);
     position: sticky;
     top: 152px;
   }
   
   .checkout-card h2 {
     font-size: 1.5rem;
     font-weight: 800;
     color: var(--dark);
     margin-bottom: 24px;
     padding-bottom: 20px;
     border-bottom: 1px solid var(--border-subtle);
   }
   
   .summary-line {
     display: flex;
     justify-content: space-between;
     margin: 16px 0;
     font-size: 1.05rem;
     font-weight: 500;
   }
   
   .summary-line strong { color: var(--primary); }
   
   .contract-box {
     background: rgba(215, 218, 224, 0.08);
     padding: 16px;
     border-radius: var(--radius);
     text-align: center;
     font-size: 0.9rem;
     font-weight: 600;
     color: var(--hub-accent);
     margin: 24px 0;
     border: 1px solid rgba(215, 218, 224, 0.22);
   }
   
   .terms-box {
     font-size: 0.95rem;
     margin-bottom: 28px;
   }
   
   .terms-box label {
     display: flex;
     align-items: flex-start;
     gap: 12px;
     cursor: pointer;
     font-weight: 500;
   }
   
   .terms-box input[type="checkbox"] {
     width: 22px;
     height: 22px;
     margin-top: 2px;
     accent-color: var(--hub-accent);
   }
   
   .btn-buy {
     background: linear-gradient(165deg, #16a34a 0%, #22c55e 45%, #4ade80 100%);
     color: #fff;
     padding: 20px;
     border: 2px solid #86efac;
     border-radius: var(--radius);
     font-size: 1.15rem;
     font-weight: 700;
     font-family: Arial, Helvetica, sans-serif;
     cursor: pointer;
     transition: var(--transition);
     width: 100%;
     box-shadow:
       0 0 0 1px rgba(34, 197, 94, 0.35),
       0 8px 28px rgba(34, 197, 94, 0.4);
     text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
   }
   
   .btn-buy:hover:not(:disabled) {
     transform: translateY(-3px);
     filter: brightness(1.06);
     box-shadow:
       0 0 0 1px #bbf7d0,
       0 12px 36px rgba(74, 222, 128, 0.45);
   }
   
   .btn-buy:disabled {
     background: #475569;
     border-color: #64748b;
     color: #cbd5e1;
     cursor: not-allowed;
     box-shadow: none;
     filter: none;
     text-shadow: none;
   }
   
   .trust-line {
     text-align: center;
     margin-top: 20px;
     font-size: 0.9rem;
     font-weight: 600;
     color: var(--gray);
   }
   
   .upgrade-note {
     margin-top: 20px;
     padding: 16px;
     background: rgba(215, 218, 224, 0.06);
     border-radius: var(--radius);
     font-size: 0.9rem;
     color: var(--gray-light);
     line-height: 1.6;
     border-left: 4px solid var(--hub-accent);
   }
   
   /* ========================================
      FAQ PAGE
      ======================================== */
   .faq-page {
     padding: 80px 0 100px;
     background: var(--bg-page);
   }
   
   .faq-list {
     max-width: 800px;
     margin: 0 auto;
   }
   
   .faq-item {
     background: var(--bg-elevated);
     padding: 28px 36px;
     border-radius: var(--radius-lg);
     margin-bottom: 20px;
     border: 1px solid var(--border-subtle);
     box-shadow: var(--shadow);
     transition: var(--transition);
   }
   
   .faq-item:hover {
     box-shadow: var(--shadow-lg);
   }
   
   .faq-item h3 {
     font-size: 1.2rem;
     font-weight: 700;
     color: var(--dark);
     margin-bottom: 12px;
   }
   
   .faq-item p {
     color: var(--gray);
     font-size: 1rem;
     line-height: 1.7;
   }
   
   .faq-cta {
     text-align: center;
     margin-top: 60px;
   }
   
   .faq-cta p {
     font-size: 1.15rem;
     color: var(--gray);
     margin-bottom: 20px;
   }
   
   /* ========================================
      THANK YOU PAGE
      ======================================== */
   .thank-you-page {
     min-height: 80vh;
     display: flex;
     align-items: center;
     justify-content: center;
     padding: 60px 24px;
   }
   
   .thank-you-card {
     text-align: center;
     max-width: 480px;
   }
   
   .thank-you-card h1 {
     font-size: 2.5rem;
     font-weight: 800;
     color: var(--dark);
     margin-bottom: 16px;
   }
   
   .thank-you-card p {
     font-size: 1.15rem;
     color: var(--gray);
     margin-bottom: 32px;
     line-height: 1.7;
   }
   
   .thank-you-card .btn-main {
     display: inline-flex;
   }
   
   .thank-you-card .btn-main:hover {
     transform: translateY(-3px);
   }
   
   /* Thank-you checkmark icon */
   .thank-you-icon {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     width: 80px;
     height: 80px;
     font-size: 2.5rem;
     background: var(--hub-accent);
     color: var(--on-accent);
     border-radius: 50%;
     font-weight: bold;
     margin: 0 auto 24px;
     box-shadow: 0 8px 24px rgba(215, 218, 224, 0.35);
   }

   /* ========================================
      COOKIE BANNER
      ======================================== */
   .cookie-banner {
     position: fixed;
     bottom: 0;
     left: 0;
     right: 0;
     background: var(--bg-elevated);
     color: rgba(255,255,255,0.95);
     border-top: 1px solid var(--border-subtle);
     padding: 16px 24px;
     box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
     z-index: 9999;
   }
   .cookie-banner-inner {
     max-width: 1200px;
     margin: 0 auto;
     display: flex;
     flex-wrap: wrap;
     align-items: center;
     justify-content: space-between;
     gap: 16px;
   }
   .cookie-banner-text {
     margin: 0;
     font-size: 0.95rem;
     line-height: 1.5;
     flex: 1;
     min-width: 260px;
   }
   .cookie-banner-text a {
     color: var(--accent-light);
     text-decoration: underline;
   }
   .cookie-banner-text a:hover {
     color: white;
   }
   .cookie-banner-btn {
     background: var(--hub-accent);
     color: var(--on-accent);
     border: none;
     padding: 12px 24px;
     border-radius: var(--radius);
     font-weight: 600;
     cursor: pointer;
     font-size: 1rem;
     white-space: nowrap;
   }
   .cookie-banner-btn:hover {
     filter: brightness(1.08);
   }

   /* Hikvision trust strip */
   .hikvision-trust {
     text-align: center;
     padding: 12px 24px;
     background: var(--gray-bg);
     border-top: 1px solid var(--border-subtle);
     font-size: 0.95rem;
     color: var(--gray-light);
     font-weight: 500;
   }
   .hikvision-trust strong { color: var(--hub-accent); }

  .packages-intro .packages-lead {
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--dark-soft);
  }
  .packages-intro .packages-lead-muted {
    max-width: 36rem;
    margin: 0.75rem auto 0;
    font-size: 0.95rem;
    color: var(--gray);
    line-height: 1.55;
  }

  /* Inline “fixed quote” — matches nav install-quote / navy family */
  .packages-fixed-quote-link {
    display: inline-flex;
    align-items: center;
    padding: 3px 14px 4px;
    margin: 0 1px;
    border-radius: 999px;
    font-weight: 800;
    text-decoration: none;
    color: var(--cta-navy-text) !important;
    background: rgba(30, 58, 138, 0.35);
    border: 1px solid rgba(59, 130, 246, 0.45);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    vertical-align: baseline;
  }

  .packages-fixed-quote-link:hover {
    color: #fff !important;
    background: rgba(37, 99, 235, 0.42);
    border-color: rgba(96, 165, 250, 0.65);
    box-shadow:
      0 4px 16px rgba(0, 0, 0, 0.3),
      inset 0 -3px 0 0 var(--cta-navy-mid);
    transform: translateY(-1px);
  }

  @media (max-width: 1100px) {
    .logo { font-size: 1.35rem; }
  }

  /* ========================================
     NEW PAGES: QUOTE / CALCULATOR / GUIDES
     ======================================== */
  .quote-page,
  .calculator-page,
  .content-page {
    padding: 80px 0 100px;
    background: var(--bg-page);
    min-height: 80vh;
  }

  .quote-quick-contact {
    background: rgba(215, 218, 224, 0.06);
    border-bottom: 1px solid var(--border-subtle);
    padding: 16px 0;
  }

  .quote-quick-contact--in-grid {
    grid-column: 1 / -1;
    margin: 0;
    padding: 0;
    border: none;
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-subtle);
  }

  .quote-quick-contact--in-grid .quote-quick-contact-inner {
    padding: 20px 24px;
  }

  .quote-quick-contact-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px 24px;
  }

  .quote-quick-contact-text {
    margin: 0;
    font-size: 0.95rem;
    color: var(--dark);
    line-height: 1.45;
    flex: 1 1 240px;
    max-width: 640px;
  }

  .quote-quick-contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    flex-shrink: 0;
    align-items: center;
  }

  .quote-quick-contact-btn {
    padding: 12px 22px !important;
    font-size: 0.9rem !important;
    border-radius: 50px;
    min-height: 44px;
  }

  /* Green: quotation submit, WhatsApp (separate class), pay, send message only */
  .btn-cta-green {
    background: linear-gradient(165deg, #16a34a 0%, #22c55e 45%, #4ade80 100%) !important;
    color: #ffffff !important;
    border: 2px solid #86efac !important;
    box-shadow:
      0 0 0 1px rgba(34, 197, 94, 0.4),
      0 6px 24px rgba(34, 197, 94, 0.45) !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  }

  .btn-cta-green:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    border-color: #bbf7d0 !important;
    box-shadow:
      0 0 0 1px #bbf7d0,
      0 10px 32px rgba(74, 222, 128, 0.5) !important;
  }

  .btn-outline-navy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(59, 130, 246, 0.55) !important;
    color: var(--cta-navy-text) !important;
    background: rgba(30, 58, 138, 0.22) !important;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
  }

  .btn-outline-navy:hover {
    background: rgba(37, 99, 235, 0.28) !important;
    border-color: #93c5fd !important;
    color: #fff !important;
    transform: translateY(-2px);
  }

  /* Brands strip (installation quote) — add PNG/SVG to images/brands/ */
  .brands-strip {
    max-width: 900px;
    margin: 0 auto 28px;
    padding: 14px 20px;
    background: rgba(30, 58, 138, 0.12);
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--cta-navy-mid);
    border-radius: var(--radius-lg);
    text-align: center;
  }

  .brands-strip-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 12px;
  }

  .brands-strip-logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 20px 28px;
  }

  .brand-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
  }

  .brand-item img {
    max-height: 32px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    opacity: 0.92;
  }

  .brand-fallback {
    display: none;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--gray-light);
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
  }

  .brand-fallback.is-visible {
    display: inline-block;
  }

  .btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #25d366;
    color: #fff !important;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 3px 14px rgba(37, 211, 102, 0.35);
  }

  .btn-whatsapp:hover {
    background: #1ebe57;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(37, 211, 102, 0.4);
  }

  @media (max-width: 768px) {
    .quote-quick-contact-inner {
      flex-direction: column;
      align-items: stretch;
      text-align: center;
      gap: 0;
    }

    .quote-quick-contact--in-grid .quote-quick-contact-inner {
      padding: 10px 14px 12px;
      gap: 0 !important;
      row-gap: 0 !important;
    }

    .quote-quick-contact-text {
      flex: 0 0 auto;
      flex-grow: 0;
      max-width: 100%;
      line-height: 1.28;
      margin: 0 !important;
      padding: 0 2px;
    }

    .quote-quick-contact-actions {
      justify-content: center;
      width: 100%;
      margin-top: 2px !important;
      padding-top: 0;
      gap: 6px !important;
    }

    .quote-quick-contact-btn {
      flex: 1 1 auto;
      min-width: 0;
      justify-content: center;
    }
  }

  .quote-grid,
  .calc-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: start;
  }

  .quote-aside,
  .calc-aside {
    display: grid;
    gap: 16px;
  }

  .aside-card,
  .content-card,
  .cta-card {
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-subtle);
    padding: 28px;
  }

  .aside-card h3 {
    font-size: 1.25rem;
    color: var(--dark);
    font-weight: 800;
    margin-bottom: 12px;
  }

  .aside-list {
    list-style: none;
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    color: var(--gray);
  }

  .aside-list li strong { color: var(--dark); }

  .aside-note {
    margin-top: 14px;
    padding: 14px 16px;
    border-radius: var(--radius);
    background: rgba(215, 218, 224, 0.06);
    border-left: 4px solid var(--hub-accent);
    color: var(--gray-light);
    line-height: 1.6;
    font-size: 0.95rem;
  }

  .calculator-page .aside-note {
    background: rgba(30, 58, 138, 0.1);
    border-left-color: var(--cta-navy-mid);
  }

  .calculator-page .aside-card h3 {
    color: var(--cta-navy-text);
  }

  .calculator-page .section-header h1 span {
    color: var(--cta-navy-text);
  }

  .form-section-title {
    margin: 26px 0 14px;
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--dark);
  }

  .quote-fieldset {
    border: 0;
    margin: 0;
    padding: 0;
    min-width: 0;
  }

  .quote-fieldset:disabled {
    pointer-events: none;
  }

  .quote-fieldset legend.form-section-title {
    margin-top: 20px;
  }

  .service-select-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
    gap: 12px;
    margin-top: 12px;
  }

  .service-tile {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding: 16px 10px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    background: var(--gray-bg);
    cursor: pointer;
    font-weight: 800;
    font-size: 0.82rem;
    text-align: center;
    line-height: 1.25;
    color: var(--dark-soft);
    transition: var(--transition);
    min-height: 128px;
  }

  .service-tile:hover {
    border-color: var(--hub-accent);
    background: rgba(215, 218, 224, 0.06);
    color: var(--hub-accent);
  }

  .service-tile input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
  }

  .service-tile-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(215, 218, 224, 0.08);
    border: 1px solid rgba(215, 218, 224, 0.22);
    flex-shrink: 0;
  }

  .service-tile-icon svg {
    width: 30px;
    height: 30px;
    color: var(--primary);
  }

  .service-tile.is-selected {
    border-color: var(--hub-accent);
    background: rgba(215, 218, 224, 0.1);
    color: var(--hub-accent);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  }

  @media (max-width: 640px) {
    .option-row.option-row-4 {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .service-select-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  .form-hint {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.5;
  }

  .option-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
  }

  .option-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 14px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    background: var(--gray-bg);
    cursor: pointer;
    font-weight: 700;
    color: var(--dark-soft);
    transition: var(--transition);
    user-select: none;
    min-height: 54px;
  }

  .option-card:hover {
    border-color: var(--hub-accent);
    background: rgba(215, 218, 224, 0.06);
    color: var(--hub-accent);
  }

  /* Hide native radios/checkboxes - whole card clickable */
  .option-card input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 1px;
    height: 1px;
  }

  .option-card .opt-icon {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(215, 218, 224, 0.08);
    border: 1px solid rgba(215, 218, 224, 0.2);
    flex-shrink: 0;
  }

  .option-card .opt-icon svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
  }

  .option-card .opt-text {
    display: inline-block;
    line-height: 1.2;
  }

  .option-card.is-selected {
    border-color: var(--hub-accent);
    background: rgba(215, 218, 224, 0.08);
    color: var(--hub-accent);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
  }

  .option-card:focus-within {
    outline: none;
    border-color: var(--hub-accent);
    box-shadow: 0 0 0 3px rgba(215, 218, 224, 0.15);
  }

  .option-row.option-row-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .option-row.option-row-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .alert-success,
  .alert-error {
    padding: 14px 16px;
    border-radius: var(--radius);
    margin-bottom: 14px;
    font-weight: 600;
    line-height: 1.5;
  }

  /* High-visibility confirmation (quotation / contact sent) */
  .alert-success {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 1.35rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.55;
    color: #f0fdf4;
    background: linear-gradient(165deg, #14532d 0%, #166534 40%, #15803d 100%);
    border: 2px solid #4ade80;
    box-shadow:
      0 0 0 1px rgba(74, 222, 128, 0.35),
      0 12px 40px rgba(34, 197, 94, 0.35);
  }

  .alert-success::before {
    content: "";
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    margin-top: 2px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2314532d' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 16px 16px;
  }

  .alert-error {
    background: rgba(248, 113, 113, 0.15);
    border: 2px solid rgba(248, 113, 113, 0.45);
    color: #fecaca;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.12);
  }

  .btn-outline-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--hub-accent) !important;
    padding: 14px 20px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 1rem;
    text-decoration: none;
    border: 1px solid rgba(215, 218, 224, 0.45);
    cursor: pointer;
    transition: var(--transition);
  }

  .btn-outline-dark:hover {
    background: rgba(215, 218, 224, 0.1);
    border-color: var(--hub-accent);
    transform: translateY(-2px);
  }

  .small-muted { color: var(--gray); font-size: 0.95rem; line-height: 1.6; }

  .calc-result {
    display: grid;
    gap: 10px;
    margin: 12px 0 0;
  }

  .result-line {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius);
    background: rgba(30, 58, 138, 0.08);
    border-left: 4px solid var(--cta-navy-mid);
    font-weight: 600;
    color: var(--dark-soft);
  }

  .result-line strong { color: var(--cta-navy-text); font-weight: 900; }

  .seo-block {
    margin-top: 36px;
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-subtle);
    padding: 26px;
  }

  .seo-block h2 {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 10px;
  }

  .seo-block p { color: var(--gray); line-height: 1.7; }

  .seo-block-inline-link {
    color: var(--cta-navy-text);
    font-weight: 800;
    text-decoration: none;
    border-bottom: 2px solid var(--cta-navy-mid);
    padding-bottom: 1px;
    transition: color 0.2s ease, border-color 0.2s ease;
  }

  .seo-block-inline-link:hover {
    color: #f8fafc;
    border-bottom-color: #93c5fd;
  }

  .seo-block-inline-link:focus-visible {
    outline: 2px solid var(--cta-navy-mid);
    outline-offset: 3px;
    border-radius: 2px;
  }

  .content-card h2 {
    font-size: 1.45rem;
    font-weight: 900;
    color: var(--dark);
    margin: 18px 0 10px;
  }

  .content-card p,
  .content-card li { color: var(--gray); line-height: 1.75; }

  .content-card a { color: var(--primary); font-weight: 700; }

  .soft-divider {
    border: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 22px 0;
  }

  .big-list {
    padding-left: 20px;
    display: grid;
    gap: 16px;
  }

  .two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 12px;
  }

  .mini-card {
    padding: 18px;
    border-radius: var(--radius-lg);
    background: var(--gray-bg);
    border: 1px solid var(--border-subtle);
  }

  .mini-card h3 {
    color: var(--dark);
    font-weight: 900;
    margin-bottom: 8px;
  }

  .content-cta { margin-top: 26px; }
  .cta-card h3 { color: var(--dark); font-weight: 900; margin-bottom: 10px; }
  .cta-card p { color: var(--gray); margin-bottom: 16px; }

  @media (max-width: 980px) {
    .quote-grid,
    .calc-grid {
      grid-template-columns: 1fr;
    }
    .option-row {
      grid-template-columns: 1fr;
    }
    .two-col {
      grid-template-columns: 1fr;
    }
  }

  /* ========================================
     PROJECTS & BLOG (portfolio + SEO content)
     ======================================== */
  .projects-page,
  .blog-page,
  .blog-article-page {
    padding: 48px 0 100px;
    min-height: 70vh;
  }

  .projects-hero,
  .blog-hero {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
    padding: 0 24px;
  }

  .projects-hero h1,
  .blog-hero h1 {
    font-size: clamp(1.85rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
  }

  .projects-hero h1 span,
  .blog-hero h1 span {
    color: var(--primary-light);
  }

  .projects-hero p,
  .blog-hero p {
    color: var(--gray-light);
    font-size: 1.05rem;
    line-height: 1.65;
  }

  .projects-note {
    max-width: 720px;
    margin: -24px auto 40px;
    padding: 14px 20px;
    background: rgba(215, 218, 224, 0.06);
    border: 1px solid rgba(215, 218, 224, 0.12);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--gray-light);
    line-height: 1.5;
  }

  .projects-grid,
  .blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  .project-card,
  .blog-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
  }

  .project-card:hover,
  .blog-card:hover {
    transform: translateY(-4px);
    border-color: rgba(215, 218, 224, 0.22);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.04);
  }

  .project-card a,
  .blog-card a {
    text-decoration: none;
    color: inherit;
    display: block;
  }

  .project-card-image,
  .blog-card-image {
    aspect-ratio: 16 / 10;
    background: var(--gray-bg);
    overflow: hidden;
  }

  .project-card-image img,
  .blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .blog-card-image img.blog-card-thumb-svg {
    object-fit: contain;
    padding: 18%;
    background: linear-gradient(160deg, rgba(30, 58, 138, 0.35) 0%, #1a1d24 55%, #151518 100%);
    box-sizing: border-box;
  }

  /* Raster screenshots in cards — keep grid crop consistent */
  .blog-card-image img.blog-card-thumb-photo {
    object-fit: cover;
    object-position: center top;
  }

  /* Only the first image is the card thumbnail; extra <img>s are for SEO/hints —
     stacking them all at 100% height broke the crop and looked wrong after click/focus. */
  .project-card-image img:not(:first-child),
  .blog-card-image img:not(:first-child) {
    display: none;
  }

  .project-card:hover .project-card-image img,
  .blog-card:hover .blog-card-image img {
    transform: scale(1.04);
  }

  .project-card-body,
  .blog-card-body {
    padding: 22px 24px 26px;
  }

  .project-card-body h2,
  .blog-card-body h2 {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 10px;
  }

  .project-meta,
  .blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 12px;
  }

  .project-meta span,
  .blog-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
  }

  .project-tag,
  .blog-tag {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 5px 10px;
    border-radius: 8px;
    background: rgba(215, 218, 224, 0.08);
    border: 1px solid rgba(215, 218, 224, 0.12);
    color: var(--gray-light);
  }

  .project-card-excerpt,
  .blog-card-excerpt {
    font-size: 0.95rem;
    color: var(--gray-light);
    line-height: 1.55;
    margin: 0;
  }

  .read-more {
    display: inline-flex;
    margin-top: 14px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--hub-accent);
  }

  /* Single project / article layout */
  .project-detail-page,
  .blog-article-page .article-shell {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    min-width: 0;
  }

  .project-detail-hero {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    margin-bottom: 36px;
    box-shadow: var(--shadow-lg);
  }

  .project-detail-hero img {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    display: block;
  }

  .blog-article-page figure.project-detail-hero img {
    max-height: min(72vh, 520px);
    object-fit: contain;
    background: var(--gray-bg);
  }

  .project-detail-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
  }

  .project-detail-main h1,
  .blog-article-page .article-shell h1 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.2;
  }

  .project-detail-main .lead,
  .blog-prose .lead {
    font-size: 1.1rem;
    color: var(--gray-light);
    line-height: 1.65;
    margin-bottom: 28px;
  }

  .project-sidebar {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: sticky;
    top: 120px;
  }

  .project-sidebar h2 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray);
    margin-bottom: 16px;
  }

  .project-sidebar dl {
    margin: 0;
    display: grid;
    gap: 14px;
  }

  .project-sidebar dt {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--gray);
    margin-bottom: 4px;
  }

  .project-sidebar dd {
    margin: 0;
    font-size: 0.95rem;
    color: var(--dark-soft);
    font-weight: 600;
  }

  .project-sidebar ul {
    margin: 0;
    padding-left: 18px;
    color: var(--gray-light);
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .blog-youtube-strip {
    max-width: 1200px;
    margin: 0 auto 48px;
    padding: 28px 24px;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.12) 0%, rgba(215, 218, 224, 0.04) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .blog-youtube-preview-label {
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--cta-navy-text);
    margin: 0 0 10px;
  }

  .blog-youtube-preview-wrap {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
  }

  .blog-youtube-preview {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow);
    background: #0f172a;
  }

  .blog-youtube-preview iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
  }

  .blog-youtube-preview-fallback {
    margin: 12px 0 0;
    font-size: 0.88rem;
    color: var(--gray);
    line-height: 1.5;
    text-align: center;
  }

  .blog-youtube-strip-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 8px;
    border-top: 1px solid rgba(215, 218, 224, 0.1);
  }

  .blog-youtube-strip h2 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 6px;
  }

  .blog-youtube-strip p {
    color: var(--gray-light);
    font-size: 0.95rem;
    max-width: 520px;
    margin: 0;
  }

  .btn-youtube {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: #c4302b;
    color: #fff !important;
    font-weight: 700;
    text-decoration: none;
    border-radius: 14px;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(196, 48, 43, 0.35);
  }

  .btn-youtube:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
  }

  .blog-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    padding: 0 24px;
  }

  .blog-cat {
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
    color: var(--gray-light);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: default;
  }

  .blog-prose {
    max-width: 720px;
    color: var(--gray-light);
    font-size: 1.05rem;
    line-height: 1.75;
  }

  .blog-prose h2 {
    font-size: 1.35rem;
    color: var(--dark);
    margin: 36px 0 14px;
  }

  .blog-prose h3 {
    font-size: 1.15rem;
    color: var(--dark);
    margin: 28px 0 10px;
  }

  .blog-prose p { margin-bottom: 1.1em; }

  .blog-prose ul,
  .blog-prose ol {
    margin: 0 0 1.1em 1.25em;
  }

  .blog-prose a {
    color: var(--hub-accent);
    font-weight: 600;
  }

  .blog-prose figure {
    margin: 28px 0;
    max-width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow);
    background: var(--gray-bg);
  }

  .blog-prose figure img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
  }

  .embed-youtube {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    margin: 28px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow);
  }

  .embed-youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
  }

  .article-meta-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
  }

  @media (max-width: 900px) {
    .project-detail-layout {
      grid-template-columns: 1fr;
    }
    .project-sidebar {
      position: static;
    }
  }

  /* --- Installation pricing guide (installation-pricing-guide.html) --- */
  .pricing-guide-page .container--narrow {
    max-width: 820px;
  }

  .pricing-guide-disclaimer {
    margin: 0 0 28px;
    padding: 16px 18px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    background: rgba(251, 191, 36, 0.08);
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .pricing-guide-disclaimer a {
    font-weight: 600;
    color: var(--hub-accent);
  }

  .pricing-guide-toc {
    margin: 0 0 32px;
    padding: 20px 22px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    background: var(--gray-bg);
  }

  .pricing-guide-toc-title {
    margin: 0 0 12px;
    font-size: 1rem;
    font-weight: 700;
  }

  .pricing-guide-toc ul {
    margin: 0;
    padding-left: 1.25rem;
    line-height: 1.7;
  }

  .pricing-guide-toc a {
    font-weight: 600;
    color: var(--hub-accent);
  }

  .pricing-compare-block {
    margin-bottom: 28px;
  }

  .compare-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 20px 0 8px;
  }

  .compare-col {
    padding: 16px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
  }

  .compare-col-title {
    margin: 0 0 12px;
    font-size: 1rem;
    font-weight: 700;
  }

  .compare-col ul {
    margin: 0;
    padding-left: 1.15rem;
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .compare-col li + li {
    margin-top: 8px;
  }

  .pricing-media-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 22px;
  }

  .pricing-media-slot {
    margin: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px dashed rgba(100, 116, 139, 0.45);
    background: var(--gray-bg);
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4 / 3;
  }

  .pricing-media-slot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .pricing-media-placeholder {
    padding: 16px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.4;
  }

  .pricing-guide-cta {
    text-align: center;
    padding: 28px 20px 8px;
  }

  .pricing-guide-cta .btn-outline-dark {
    margin-left: 10px;
  }

  .pricing-guide-callout {
    margin: 0 0 24px;
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    background: var(--gray-bg);
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .pricing-guide-callout a {
    font-weight: 600;
    color: var(--hub-accent);
  }

  @media (max-width: 640px) {
    .compare-columns {
      grid-template-columns: 1fr;
    }
    .pricing-media-grid {
      grid-template-columns: 1fr;
    }
    .pricing-guide-cta .btn-outline-dark {
      display: inline-block;
      margin: 12px 0 0;
    }
  }