/* ============================================================
   AUTOMOTIVE RUBBER - Vertex Rubber India | style.css
   Core Design System: Variables, Typography, Grid, Utilities,
   Buttons, Forms, Cards, Navigation, Footer
   ============================================================ */

/* ----- CSS Custom Properties ----- */
:root {
  --primary: #0b1a2e;
  --primary-light: #132b4a;
  --primary-dark: #060e18;
  --secondary: #ff6b00;
  --secondary-hover: #e06000;
  --secondary-light: rgba(255, 107, 0, 0.12);
  --accent: #00bcd4;
  --accent-hover: #00a0b5;
  --accent-light: rgba(0, 188, 212, 0.10);
  --success: #2ecc71;
  --warning: #f39c12;
  --danger: #e74c3c;

  --white: #ffffff;
  --off-white: #f8f9fa;
  --gray-50: #f1f3f5;
  --gray-100: #e9ecef;
  --gray-200: #dee2e6;
  --gray-300: #ced4da;
  --gray-400: #adb5bd;
  --gray-500: #6c757d;
  --gray-600: #495057;
  --gray-700: #343a40;
  --gray-800: #212529;

  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-muted: #888;
  --text-light-muted: rgba(255,255,255,0.65);
  --text-dark: #1a1a2e;

  --bg-dark: #0b1a2e;
  --bg-section: #0d1f36;
  --bg-card: #111e32;
  --bg-card-hover: #162a45;
  --bg-elevated: #1a2f4a;

  --gradient-hero: linear-gradient(160deg, #0b1a2e 0%, #132b4a 25%, #1a3a5c 50%, #0f2040 75%, #060e18 100%);
  --gradient-card: linear-gradient(145deg, #111e32, #162a45);
  --gradient-accent: linear-gradient(135deg, #ff6b00, #ff8c00);
  --gradient-cta: linear-gradient(135deg, #ff6b00 0%, #ff8c00 50%, #ff6b00 100%);
  --gradient-cta-green: linear-gradient(135deg, #00E676, #00C853);
  --gradient-hero-warm: linear-gradient(135deg, #0b1a2e 0%, #1a0a00 50%, #0b1a2e 100%);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(255,107,0,0.15);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.5);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', 'Inter', -apple-system, sans-serif;

  --section-padding: 5rem 2rem;
  --container-max: 1280px;
  --container-narrow: 900px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ----- Reset & Base ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  font-family: var(--font-primary);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--secondary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--secondary-hover); }
ul, ol { list-style: none; }

::selection { background: rgba(255,107,0,0.3); color: var(--white); }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--gray-600); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.15rem; }
p { color: var(--text-secondary); line-height: 1.8; }
.highlight { color: var(--secondary); }
.highlight-accent { color: var(--accent); }

/* ----- Container ----- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 1.5rem; }

/* ----- Sections ----- */
.section { padding: var(--section-padding); position: relative; }
.section-alt { background: var(--bg-section); }
.section-light { background: var(--bg-dark); }
.section-card { background: var(--bg-card); }

.section-header { text-align: center; max-width: 800px; margin: 0 auto 3.5rem; }
.section-header .subtitle {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.85rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.15em; color: var(--secondary);
  margin-bottom: 1rem; padding: 0.4rem 1.2rem;
  background: var(--secondary-light); border-radius: var(--radius-full);
}
.section-header .subtitle i { font-size: 0.8rem; }
.section-header h2 { margin-bottom: 1rem; }
.section-header p { font-size: 1.1rem; color: var(--text-muted); }

/* ----- Grid Layouts ----- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.85rem 2rem; font-family: var(--font-primary);
  font-size: 0.95rem; font-weight: 600; line-height: 1;
  border: none; border-radius: var(--radius-md); cursor: pointer;
  transition: all var(--transition-base); text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-accent); color: var(--white);
  box-shadow: 0 4px 15px rgba(255,107,0,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(255,107,0,0.4); color: var(--white); }
.btn-secondary {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover { border-color: var(--secondary); background: rgba(255,107,0,0.1); transform: translateY(-2px); color: var(--white); }
.btn-outline {
  background: transparent; color: var(--secondary);
  border: 1.5px solid var(--secondary); padding: 0.6rem 1.4rem;
}
.btn-outline:hover { background: var(--secondary); color: var(--white); transform: translateY(-1px); }
.btn-sm { padding: 0.6rem 1.4rem; font-size: 0.85rem; }
.btn-lg { padding: 1rem 2.5rem; font-size: 1.05rem; }
.btn-green {
  background: var(--gradient-cta-green); color: var(--white);
  box-shadow: 0 4px 15px rgba(0,230,118,0.3);
  animation: pulse-glow-green 2s ease-in-out infinite;
}
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(0,230,118,0.5); color: var(--white); }
.btn-white { background: var(--white); color: var(--primary); }
.btn-white:hover { background: var(--secondary); color: var(--white); transform: translateY(-2px); }

/* ----- Forms ----- */
.form-group { margin-bottom: 1.2rem; }
.form-label { display: block; font-size: 0.9rem; font-weight: 500; color: var(--text-primary); margin-bottom: 0.4rem; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.8rem 1rem; font-family: var(--font-primary);
  font-size: 0.95rem; color: var(--text-primary); background: var(--bg-card);
  border: 1.5px solid rgba(255,255,255,0.08); border-radius: var(--radius-md);
  transition: all var(--transition-fast); outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(255,107,0,0.15);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-error { font-size: 0.8rem; color: #ff4444; margin-top: 0.3rem; }

/* ----- Cards ----- */
.card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); padding: 2rem; transition: all var(--transition-base);
}
.card:hover { background: var(--bg-card-hover); border-color: rgba(255,107,0,0.15); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.card-icon {
  width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  background: var(--secondary-light); border-radius: var(--radius-md);
  font-size: 1.4rem; color: var(--secondary); margin-bottom: 1.2rem;
}

/* ----- Product Cards ----- */
.product-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-base);
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card); border-color: rgba(255,107,0,0.2); }
.product-card-img {
  height: 200px; background: var(--bg-elevated); display: flex;
  align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.product-card-img i { font-size: 3rem; color: var(--secondary); opacity: 0.3; transition: all var(--transition-slow); }
.product-card:hover .product-card-img i { transform: scale(1.15); opacity: 0.5; }
.product-card-img.no-img { background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card)); }
.product-icon-placeholder {
  width: 64px; height: 64px; display: flex; align-items: center; justify-content: center;
  background: var(--secondary-light); border-radius: var(--radius-full);
  font-size: 1.8rem; color: var(--secondary);
}
.product-badge {
  position: absolute; top: 12px; left: 12px; padding: 0.3rem 0.8rem;
  background: var(--gradient-accent); color: var(--white); font-size: 0.75rem;
  font-weight: 700; border-radius: var(--radius-sm); text-transform: uppercase; letter-spacing: 0.05em;
}
.product-card-body { padding: 1.5rem; }
.product-card-body h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.product-card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1rem; line-height: 1.6; }

/* ----- Icon Cards ----- */
.icon-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); padding: 2rem; text-align: center;
  transition: all var(--transition-base);
}
.icon-card:hover { transform: translateY(-4px); border-color: rgba(255,107,0,0.15); box-shadow: var(--shadow-card); background: var(--bg-card-hover); }
.icon-card .icon-wrap {
  width: 64px; height: 64px; margin: 0 auto 1.2rem; display: flex;
  align-items: center; justify-content: center; background: var(--secondary-light);
  border-radius: var(--radius-full); font-size: 1.5rem; color: var(--secondary);
  transition: all var(--transition-base);
}
.icon-card:hover .icon-wrap { background: var(--secondary); color: var(--white); transform: scale(1.1); }
.icon-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.icon-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; }

/* ----- Why Choose Cards ----- */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.why-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); padding: 1.8rem; transition: all var(--transition-base);
}
.why-card:hover { transform: translateY(-3px); border-color: rgba(255,107,0,0.15); box-shadow: var(--shadow-card); }
.why-card-icon {
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  background: var(--secondary-light); border-radius: var(--radius-md);
  font-size: 1.2rem; color: var(--secondary); margin-bottom: 1rem;
}
.why-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.why-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

/* ----- Tables ----- */
.spec-table {
  width: 100%; border-collapse: collapse; font-size: 0.9rem;
  overflow-x: auto; display: block;
}
@media (min-width: 768px) { .spec-table { display: table; } }
.spec-table thead { background: var(--bg-elevated); }
.spec-table th {
  padding: 1rem 1.2rem; text-align: left; font-weight: 600;
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--secondary); border-bottom: 2px solid rgba(255,107,0,0.2);
}
.spec-table td {
  padding: 0.9rem 1.2rem; color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.spec-table tbody tr { transition: background var(--transition-fast); }
.spec-table tbody tr:hover { background: rgba(255,107,0,0.04); }

/* ----- FAQ Accordion ----- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-md); margin-bottom: 0.8rem; overflow: hidden;
  transition: all var(--transition-base);
}
.faq-item:hover { border-color: rgba(255,107,0,0.1); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 1.5rem; background: transparent; border: none;
  font-family: var(--font-primary); font-size: 1rem; font-weight: 500;
  color: var(--text-primary); cursor: pointer; text-align: left;
  transition: color var(--transition-fast);
}
.faq-question i {
  font-size: 0.85rem; color: var(--text-muted);
  transition: transform var(--transition-base); flex-shrink: 0; margin-left: 1rem;
}
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--secondary); }
.faq-item.active .faq-question { color: var(--secondary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-slow); }
.faq-answer-inner { padding: 0 1.5rem 1.2rem; font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; }

/* ----- Stats Grid ----- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.stat-item {
  text-align: center; padding: 1.5rem; background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05); border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}
.stat-item:hover { border-color: rgba(255,107,0,0.15); transform: translateY(-2px); }
.stat-number {
  font-family: var(--font-heading); font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800; color: var(--secondary); line-height: 1; margin-bottom: 0.3rem;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

/* ----- Badge ----- */
.badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 1.2rem; background: var(--secondary-light);
  color: var(--secondary); font-size: 0.8rem; font-weight: 600;
  border-radius: var(--radius-full); text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-dot { width: 6px; height: 6px; background: var(--secondary); border-radius: 50%; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ----- Trust Badges ----- */
.trust-badges {
  display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.5rem;
  animation: fade-up 0.6s ease 0.5s both;
}
.trust-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.2rem; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius-full);
  font-size: 0.82rem; color: var(--text-secondary); font-weight: 500;
  transition: all var(--transition-fast);
}
.trust-badge:hover { border-color: var(--secondary); background: var(--secondary-light); color: var(--secondary); }
.trust-badge-icon { font-size: 1rem; }

/* ----- Comparison / Infographic ----- */
.compare-infographic {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin: 2rem 0;
}
.compare-path {
  background: var(--bg-card); padding: 2rem; border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.05); position: relative;
}
.compare-path.bad { border-color: rgba(255,68,68,0.2); }
.compare-path.good { border-color: rgba(0,230,118,0.2); }
.compare-path h4 {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem;
  font-size: 1.1rem;
}
.compare-path.bad h4 { color: #ff4444; }
.compare-path.good h4 { color: #00E676; }
.compare-path .arrow-flow {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.8rem 0; border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 0.9rem; color: var(--text-secondary);
}
.compare-path .arrow-flow i { color: var(--secondary); font-size: 0.8rem; }
.compare-path .savings-badge {
  display: inline-block; margin-top: 1rem; padding: 0.4rem 1rem;
  background: rgba(0,230,118,0.1); color: #00E676; font-weight: 700;
  border-radius: var(--radius-sm); font-size: 0.85rem;
}

/* ----- CTA Section ----- */
.cta-section {
  background: linear-gradient(135deg, #0b1a2e 0%, #1a0a00 50%, #0b1a2e 100%);
  border: 1px solid rgba(255,107,0,0.1); border-radius: var(--radius-xl);
  padding: 4rem 3rem; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,107,0,0.08), transparent 60%);
  pointer-events: none;
}
.cta-section h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 1rem; }
.cta-section p { color: var(--text-light-muted); max-width: 600px; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ----- Hero Particles ----- */
.hero-particles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.particle {
  position: absolute; width: 6px; height: 6px; border-radius: 50%;
  opacity: 0; animation: particle-drift 8s ease-in-out infinite;
}
.particle:nth-child(1) { top: 20%; left: 10%; background: var(--secondary); animation-delay: 0s; width: 4px; height: 4px; }
.particle:nth-child(2) { top: 35%; left: 85%; background: var(--accent); animation-delay: 1.2s; width: 6px; height: 6px; }
.particle:nth-child(3) { top: 60%; left: 12%; background: var(--secondary); animation-delay: 2.4s; }
.particle:nth-child(4) { top: 75%; left: 80%; background: var(--accent); animation-delay: 3.6s; width: 5px; height: 5px; }
.particle:nth-child(5) { top: 40%; left: 45%; background: rgba(255,255,255,0.5); animation-delay: 0.8s; }
.particle:nth-child(6) { top: 85%; left: 25%; background: var(--secondary); animation-delay: 1.8s; width: 8px; height: 8px; }
.particle:nth-child(7) { top: 25%; left: 55%; background: var(--accent); animation-delay: 2.8s; }
.particle:nth-child(8) { top: 50%; left: 90%; background: var(--secondary); animation-delay: 3.2s; width: 4px; height: 4px; }
.particle:nth-child(9) { top: 15%; left: 30%; background: var(--accent); animation-delay: 4.2s; width: 5px; height: 5px; }
.particle:nth-child(10) { top: 70%; left: 50%; background: rgba(255,255,255,0.3); animation-delay: 5s; }
@keyframes particle-drift {
  0%, 100% { transform: translateY(0) scale(0); opacity: 0; }
  15% { opacity: 0.9; }
  50% { transform: translateY(-120px) scale(1.2); opacity: 0.5; }
  85% { opacity: 0.2; }
}

/* ----- Hero Section ----- */
.hero {
  position: relative; min-height: 100vh;
  background: var(--gradient-hero);
  display: flex; align-items: center; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(255,107,0,0.04) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 20%, rgba(0,188,212,0.03) 0%, transparent 50%);
  animation: hero-rotate 30s linear infinite;
}
@keyframes hero-rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.hero-content {
  position: relative; z-index: 2;
  max-width: 1280px; margin: 0 auto; padding: 10rem 2rem 6rem;
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem; align-items: center;
}
.hero-text { position: relative; }
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900;
  color: var(--white); line-height: 1.05; margin-bottom: 1.5rem;
  letter-spacing: -0.5px; animation: fade-up 0.6s ease 0.1s both;
}
.hero h1 .highlight { background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero h1 .highlight-accent { background: linear-gradient(135deg, #00bcd4, #26c6da); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  font-size: 1.1rem; color: var(--text-light-muted);
  line-height: 1.85; margin-bottom: 2.5rem; max-width: 90%;
  animation: fade-up 0.6s ease 0.2s both;
}
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; animation: fade-up 0.6s ease 0.3s both; }
@keyframes fade-up { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.hero-stats {
  display: flex; gap: 3rem; margin-top: 3rem; padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  animation: fade-up 0.6s ease 0.4s both;
}
.hero-stat { text-align: center; }
.hero-stat h3 { font-size: 2.4rem; font-weight: 900; background: var(--gradient-accent); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.1; }
.hero-stat p { font-size: 0.8rem; color: var(--text-light-muted); margin-bottom: 0; text-transform: uppercase; letter-spacing: 0.5px; }

/* ----- Hero Visual ----- */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-visual-inner { position: relative; width: 100%; max-width: 500px; aspect-ratio: 1; }
.hero-rotating-ring {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 420px; height: 420px; border: 1px solid rgba(255,107,0,0.08);
  border-radius: 50%; animation: rotate-slow 20s linear infinite;
}
.hero-rotating-ring:nth-child(2) { width: 340px; height: 340px; border-color: rgba(0,188,212,0.08); animation-direction: reverse; animation-duration: 15s; }
.hero-rotating-ring:nth-child(3) { width: 260px; height: 260px; border-color: rgba(255,107,0,0.06); animation-duration: 12s; }
@keyframes rotate-slow { to { transform: translate(-50%, -50%) rotate(360deg); } }
.hero-image-card {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 200px; height: 200px;
  background: linear-gradient(135deg, rgba(255,107,0,0.15), rgba(0,188,212,0.1));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  border: 2px solid rgba(255,107,0,0.2); box-shadow: 0 0 80px rgba(255,107,0,0.1);
  animation: soft-pulse 3s ease-in-out infinite;
}
.hero-image-card i { font-size: 5rem; color: var(--secondary); opacity: 0.8; }
@keyframes soft-pulse { 0%, 100% { transform: translate(-50%, -50%) scale(1); box-shadow: 0 0 80px rgba(255,107,0,0.1); } 50% { transform: translate(-50%, -50%) scale(1.03); box-shadow: 0 0 120px rgba(255,107,0,0.18); } }
.hero-float-card {
  position: absolute; background: rgba(11,26,46,0.88); backdrop-filter: blur(16px);
  border: 1px solid rgba(255,107,0,0.12); border-radius: var(--radius-lg);
  padding: 0.8rem 1.2rem; display: flex; align-items: center; gap: 0.75rem;
  animation: float-y 4s ease-in-out infinite; box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.hero-float-card:nth-child(5) { top: 5%; right: 0; animation-delay: 0s; }
.hero-float-card:nth-child(6) { bottom: 12%; left: 0; animation-delay: -2s; }
.hero-float-card-icon { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.hero-float-card-text h4 { color: var(--white); font-size: 0.85rem; font-weight: 700; }
.hero-float-card-text p { color: rgba(255,255,255,0.4); font-size: 0.68rem; margin-bottom: 0; }
@keyframes float-y { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-18px); } }

/* ----- Navigation ----- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(11,26,46,0.95); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition-base);
}
.navbar.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.4); }
.nav-container {
  max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between; height: 70px;
}
.nav-logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--white); }
.nav-logo-img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 800; color: var(--white); letter-spacing: -0.02em; }
.brand-sub { font-size: 0.6rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; }
.nav-links { display: flex; align-items: center; gap: 0.3rem; }
.nav-links a {
  padding: 0.5rem 1rem; font-size: 0.85rem; font-weight: 500;
  color: var(--text-muted); text-decoration: none; border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.nav-links a:hover, .nav-links a.active { color: var(--secondary); background: var(--secondary-light); }
.nav-links .nav-cta {
  background: var(--gradient-accent); color: var(--white) !important;
  padding: 0.5rem 1.2rem; font-weight: 600; margin-left: 0.5rem;
}
.nav-links .nav-cta:hover { color: var(--white); box-shadow: 0 4px 15px rgba(255,107,0,0.3); transform: translateY(-1px); }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 32px; height: 32px; background: transparent; border: none; cursor: pointer; padding: 4px; z-index: 1001; }
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--white); border-radius: 2px; transition: all var(--transition-base); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ----- Floating Elements ----- */
.whatsapp-float, .phone-call-float {
  position: fixed; right: 1.5rem; width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--white); font-size: 1.3rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3); z-index: 999;
  transition: all var(--transition-base); text-decoration: none;
}
.whatsapp-float { bottom: 6rem; background: #25d366; }
.phone-call-float { bottom: 1.5rem; background: var(--secondary); }
.whatsapp-float:hover, .phone-call-float:hover { transform: scale(1.1); color: var(--white); }
.back-to-top {
  position: fixed; left: 1.5rem; bottom: 1.5rem; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%; color: var(--text-muted); font-size: 1rem;
  cursor: pointer; z-index: 999; opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all var(--transition-base);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--secondary); color: var(--white); border-color: var(--secondary); }

/* ----- Footer ----- */
.footer { background: #060e18; border-top: 1px solid rgba(255,255,255,0.05); padding: 4rem 0 0; }
.footer::before { content: ''; display: block; height: 4px; background: var(--gradient-accent); }
.footer-grid { display: grid; grid-template-columns: 2fr 1.5fr 1.5fr 1.5fr; gap: 2.5rem; margin-bottom: 2rem; max-width: var(--container-max); margin: 0 auto 2rem; padding: 0 1.5rem; }
.footer-about h3 { font-size: 1.3rem; margin-bottom: 0.8rem; }
.footer-about h3 span { color: var(--secondary); }
.footer-about p { font-size: 0.85rem; color: rgba(255,255,255,0.35); line-height: 1.6; margin-bottom: 1rem; }
.footer-social { display: flex; gap: 0.6rem; margin-bottom: 1rem; }
.footer-social a {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.05); border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 0.9rem; transition: all var(--transition-fast); text-decoration: none;
}
.footer-social a:hover { background: var(--secondary); color: var(--white); }
.footer h4 { font-size: 0.9rem; color: var(--white); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.45); text-decoration: none; transition: all var(--transition-fast); display: flex; align-items: center; gap: 0.4rem; }
.footer-links a i { font-size: 0.6rem; color: var(--secondary); }
.footer-links a:hover { color: var(--secondary); padding-left: 0.3rem; }
.footer-contact p { font-size: 0.85rem; color: rgba(255,255,255,0.45); margin-bottom: 0.6rem; display: flex; align-items: flex-start; gap: 0.6rem; }
.footer-contact p i { color: var(--secondary); margin-top: 0.25rem; width: 14px; flex-shrink: 0; }
.footer-contact a { color: var(--text-light-muted); text-decoration: none; }
.footer-contact a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding: 1.5rem 0; text-align: center; }
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.25); }
.footer-bottom a { color: rgba(255,255,255,0.4); text-decoration: none; }
.footer-bottom a:hover { color: var(--secondary); }

/* ----- Page Header ----- */
.page-header {
  padding: 8rem 2rem 4rem;
  background: var(--gradient-hero);
  text-align: center; position: relative; overflow: hidden;
}
.page-header::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 15% 30%, rgba(255,107,0,0.12) 0%, transparent 45%),
              radial-gradient(circle at 85% 70%, rgba(0,188,212,0.10) 0%, transparent 45%);
}
.page-header::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, transparent, var(--secondary), var(--accent), var(--secondary), transparent);
}
.page-header h1 { position: relative; z-index: 2; font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 900; color: var(--white); margin-bottom: 0.75rem; }
.page-header p { position: relative; z-index: 2; color: var(--text-light-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.page-header .breadcrumb { position: relative; z-index: 2; display: flex; justify-content: center; align-items: center; gap: 0.5rem; margin-bottom: 1.5rem; font-size: 0.88rem; flex-wrap: wrap; }
.page-header .breadcrumb a { color: rgba(255,255,255,0.4); }
.page-header .breadcrumb a:hover { color: var(--secondary); }
.page-header .breadcrumb span { color: var(--secondary); }
.page-header .breadcrumb .sep { color: rgba(255,255,255,0.3); font-size: 0.65rem; }

/* ----- Content Sections (for inner pages) ----- */
.content-section { padding: 3rem 0; }
.content-section h2 { margin-bottom: 1.5rem; }
.content-section h3 { margin-bottom: 1rem; margin-top: 2rem; }
.content-section p { margin-bottom: 1rem; color: var(--text-secondary); line-height: 1.8; }
.content-section ul, .content-section ol { margin-bottom: 1.5rem; padding-left: 1.5rem; }
.content-section ul li { position: relative; padding-left: 1.5rem; margin-bottom: 0.5rem; color: var(--text-secondary); line-height: 1.6; }
.content-section ul li::before { content: '◆'; position: absolute; left: 0; color: var(--secondary); font-size: 0.6rem; top: 0.4rem; }
.content-section ol li { margin-bottom: 0.5rem; color: var(--text-secondary); line-height: 1.6; }

/* ----- Application/Industry Cards ----- */
.app-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; }
.app-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); padding: 1.8rem; text-align: center;
  transition: all var(--transition-base);
}
.app-card:hover { transform: translateY(-4px); border-color: rgba(255,107,0,0.15); box-shadow: var(--shadow-card); }
.app-card i { font-size: 2rem; color: var(--secondary); margin-bottom: 1rem; }
.app-card h4 { font-size: 1rem; margin-bottom: 0.3rem; }
.app-card p { font-size: 0.82rem; color: var(--text-muted); }

/* ----- Features Grid ----- */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.2rem; }
.feature-item {
  display: flex; align-items: flex-start; gap: 0.8rem; padding: 1.2rem;
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius-md); transition: all var(--transition-base);
}
.feature-item:hover { border-color: rgba(255,107,0,0.1); background: var(--bg-card-hover); }
.feature-item i { color: var(--secondary); font-size: 1.1rem; margin-top: 0.15rem; flex-shrink: 0; }
.feature-item h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.feature-item p { font-size: 0.83rem; color: var(--text-muted); }

/* ----- Info Box ----- */
.info-box {
  background: var(--bg-card); border-left: 4px solid var(--secondary);
  border-radius: var(--radius-md); padding: 1.5rem; margin: 1.5rem 0;
}
.info-box p { color: var(--text-primary); margin: 0; font-size: 0.95rem; }
.info-box a { color: var(--secondary); font-weight: 600; }

/* ----- Process Timeline ----- */
.process-timeline { max-width: 800px; margin: 0 auto; position: relative; }
.process-timeline::before {
  content: ''; position: absolute; left: 24px; top: 0; bottom: 0;
  width: 2px; background: rgba(255,107,0,0.2);
}
.process-step { position: relative; padding-left: 70px; margin-bottom: 2rem; }
.process-step-number {
  position: absolute; left: 0; top: 0; width: 48px; height: 48px;
  background: var(--gradient-accent); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; color: var(--white); z-index: 2;
}
.process-step h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.process-step p { font-size: 0.9rem; color: var(--text-muted); }

/* ----- Pricing Cards ----- */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.pricing-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-xl); padding: 2.5rem 2rem; text-align: center;
  transition: all var(--transition-base); position: relative;
}
.pricing-card:hover { transform: translateY(-6px); border-color: rgba(255,107,0,0.2); box-shadow: var(--shadow-card); }
.pricing-card.featured {
  border-color: var(--secondary); background: linear-gradient(145deg, var(--bg-card), rgba(255,107,0,0.05));
  box-shadow: 0 0 40px rgba(255,107,0,0.08);
}
.pricing-card.featured::before {
  content: 'Most Popular'; position: absolute; top: -12px; left: 50%;
  transform: translateX(-50%); background: var(--gradient-accent);
  color: var(--white); font-size: 0.75rem; font-weight: 700;
  padding: 0.3rem 1.2rem; border-radius: var(--radius-full);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.pricing-card h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.pricing-card .price {
  font-size: 2.5rem; font-weight: 900; color: var(--secondary); margin: 1rem 0;
}
.pricing-card .price span { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.pricing-card ul { text-align: left; margin: 1.5rem 0; }
.pricing-card ul li {
  padding: 0.5rem 0; font-size: 0.88rem; color: var(--text-secondary);
  display: flex; align-items: center; gap: 0.6rem;
}
.pricing-card ul li i { color: var(--success); font-size: 0.7rem; }

/* ----- Material Badges ----- */
.material-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.8rem; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 600;
}
.material-badge.nbr { background: rgba(255,107,0,0.1); color: var(--secondary); }
.material-badge.epdm { background: rgba(0,188,212,0.1); color: var(--accent); }
.material-badge.silicone { background: rgba(46,204,113,0.1); color: var(--success); }
.material-badge.viton { background: rgba(231,76,60,0.1); color: var(--danger); }
.material-badge.natural { background: rgba(243,156,18,0.1); color: var(--warning); }
.material-badge.neoprene { background: rgba(155,89,182,0.1); color: #9b59b6; }
.material-badge.pu { background: rgba(52,152,219,0.1); color: var(--info); }

/* ----- Utility ----- */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 1rem; }

/* ----- Scroll Reveal ----- */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
[data-reveal].revealed { opacity: 1; transform: translateY(0); }

/* ----- Pulse Glow ----- */
@keyframes pulse-glow-green { 0%, 100% { box-shadow: 0 4px 15px rgba(0,230,118,0.3); } 50% { box-shadow: 0 8px 30px rgba(0,230,118,0.5); } }

/* ----- Testimonial Slider ----- */
.testimonial-slider { position: relative; min-height: 280px; max-width: 750px; margin: 0 auto; }
.testimonial-card-inner {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-xl); padding: 2.5rem; text-align: center;
  position: absolute; width: 100%; top: 0; left: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.testimonial-card-inner.active { opacity: 1; z-index: 2; transform: translateX(0); }
.testimonial-card-inner:not(.active) { opacity: 0; z-index: 1; transform: translateX(30px); pointer-events: none; }
.testimonial-stars { color: #f1c40f; font-size: 1.1rem; margin-bottom: 1rem; letter-spacing: 2px; }
.testimonial-text { font-size: 1rem; color: var(--text-secondary); line-height: 1.8; font-style: italic; margin-bottom: 1.2rem; }
.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 0.8rem; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--gradient-accent); display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem; color: var(--white);
}
.testimonial-info h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.1rem; }
.testimonial-info p { font-size: 0.78rem; color: var(--text-muted); }
.testimonial-dots { display: flex; justify-content: center; gap: 0.5rem; margin-top: 2rem; }
.testimonial-dot {
  width: 10px; height: 10px; border-radius: 50%; background: rgba(255,107,0,0.2);
  border: none; cursor: pointer; transition: all var(--transition-base); padding: 0;
}
.testimonial-dot.active { background: var(--secondary); transform: scale(1.3); box-shadow: 0 0 12px rgba(255,107,0,0.3); }

/* ----- Google Reviews ----- */
.google-reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.google-review-card {
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg); padding: 1.5rem; transition: all var(--transition-base);
}
.google-review-card:hover { border-color: rgba(255,107,0,0.15); background: var(--bg-card-hover); transform: translateY(-3px); }
.google-review-card .review-stars { color: #f1c40f; font-size: 0.85rem; margin-bottom: 0.6rem; }
.google-review-card .review-text { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 0.8rem; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.google-review-card .review-author { display: flex; align-items: center; gap: 0.6rem; }
.google-review-card .review-author .avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--gradient-accent); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 700; color: var(--white); flex-shrink: 0; }
.google-review-card .review-author .name { font-size: 0.82rem; font-weight: 600; color: var(--text-primary); }
.google-review-card .review-author .source { font-size: 0.7rem; color: var(--text-muted); }

/* ----- Toast Notification ----- */
.toast {
  position: fixed; top: 80px; right: 24px; padding: 1rem 1.5rem;
  background: var(--bg-card); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  z-index: 99999; display: flex; align-items: center; gap: 0.8rem;
  transform: translateX(120%); transition: transform 0.4s ease;
  max-width: 380px; border-left: 4px solid var(--secondary);
}
.toast.show { transform: translateX(0); }
.toast i { font-size: 1.2rem; }
.toast.success { border-left-color: var(--success); }
.toast.success i { color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.error i { color: var(--danger); }
.toast-text h4 { font-size: 0.9rem; font-weight: 700; }
.toast-text p { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.1rem; }