/* ====================================================================
   ANODES INCORPORATE — 3D IMMERSIVE SOLAR WEBSITE
   Premium Design System with Glassmorphism + 3D Effects
   ==================================================================== */

/* ===== CSS Variables & Design Tokens ===== */
:root {
  --primary: #FF6B00;
  --primary-dark: #E05500;
  --primary-light: #FF8C33;
  --primary-glow: rgba(255, 107, 0, 0.4);
  --secondary: #0A1628;
  --accent: #00D4FF;
  --accent-glow: rgba(0, 212, 255, 0.3);
  --purple: #A855F7;
  --purple-glow: rgba(168, 85, 247, 0.3);
  --magenta: #EC4899;
  
  --bg-primary: #F8FAFC;
  --bg-dark: #0A1628;
  --bg-dark-2: #111D33;
  --bg-dark-3: #162036;
  
  --text-dark: #0F172A;
  --text-body: #475569;
  --text-muted: #94A3B8;
  --text-light: rgba(255,255,255,0.85);
  --text-light-muted: rgba(255,255,255,0.6);
  
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --white: #FFFFFF;
  
  --gradient-brand: linear-gradient(135deg, #A855F7 0%, #EC4899 30%, #FF6B00 60%, #FF8C33 100%);
  --gradient-solar: linear-gradient(135deg, #FF6B00 0%, #FF8C33 50%, #FFAB40 100%);
  --gradient-accent: linear-gradient(135deg, #00D4FF 0%, #0EA5E9 100%);
  --gradient-dark: linear-gradient(135deg, #0A1628 0%, #1E293B 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  --gradient-glass-dark: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
  
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.06);
  --shadow: 0 4px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px var(--primary-glow);
  --shadow-accent: 0 0 40px var(--accent-glow);
  
  --radius: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --radius-pill: 50px;
  
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: all 0.6s 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; scroll-padding-top: 90px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: 'Outfit', sans-serif; line-height: 1.2; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ===== Preloader ===== */
.preloader {
  position: fixed; inset: 0; z-index: 10000;
  background: var(--bg-dark);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-inner { text-align: center; }
.preloader-logo { margin-bottom: 32px; animation: preloaderPulse 1.5s ease infinite; }
.preloader-logo img { width: 180px; margin: 0 auto; filter: drop-shadow(0 0 30px var(--primary-glow)); }
.preloader-bar { width: 200px; height: 3px; background: rgba(255,255,255,0.1); border-radius: 10px; overflow: hidden; margin: 0 auto 16px; }
.preloader-bar-fill { height: 100%; width: 0; background: var(--gradient-brand); border-radius: 10px; animation: preloaderFill 2s ease forwards; }
.preloader p { color: var(--text-light-muted); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; }
@keyframes preloaderPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.05); } }
@keyframes preloaderFill { 0% { width: 0; } 100% { width: 100%; } }

/* ===== 3D Canvas ===== */
#heroCanvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
#particleCanvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: 1; pointer-events: none; opacity: 0.6;
}

/* ===== Glassmorphism Utilities ===== */
.glass-card {
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.glass-card:hover {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255,107,0,0.3);
  transform: translateY(-4px);
}
.glass-card-dark {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  transition: var(--transition);
}
.glass-card-dark:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,107,0,0.3);
  box-shadow: 0 0 30px rgba(255,107,0,0.1);
}

/* ===== Gradient Text ===== */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text-hero {
  background: var(--gradient-solar);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

/* ===== Section Tokens ===== */
.section { padding: 120px 0; position: relative; z-index: 2; background: var(--bg-primary); }
.section-dark { background: var(--bg-dark); color: var(--white); }
.section-gradient {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
  color: var(--white);
}

/* Section Headers */
.section-header { text-align: center; max-width: 680px; margin: 0 auto 70px; }
.section-header h2 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; }
.section-header p { color: var(--text-body); font-size: 1.1rem; }
.section-header.light p { color: var(--text-light-muted); }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 107, 0, 0.1);
  color: var(--primary);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem; font-weight: 700;
  margin-bottom: 18px;
  text-transform: uppercase; letter-spacing: 1.5px;
  border: 1px solid rgba(255,107,0,0.15);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: 600; font-size: 0.95rem;
  border: none; cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.15) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}
.btn:hover::after { transform: translateX(100%); }

.btn-primary {
  background: var(--gradient-solar);
  color: var(--white);
  box-shadow: 0 4px 25px var(--primary-glow);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px var(--primary-glow);
}

.btn-glass {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-glass:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-3px);
}

.btn-white {
  background: var(--white); color: var(--text-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.btn-white:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,0,0,0.2); }

.btn-whatsapp { background: #25d366; color: var(--white); }
.btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-3px); box-shadow: 0 8px 30px rgba(37,211,102,0.4); }

.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-block { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }
.btn-nav { padding: 10px 26px !important; font-size: 0.85rem !important; background: var(--gradient-solar); color: var(--white); }

.glow-btn {
  animation: btnGlow 3s ease infinite;
}
@keyframes btnGlow {
  0%, 100% { box-shadow: 0 4px 25px var(--primary-glow); }
  50% { box-shadow: 0 4px 40px var(--primary-glow), 0 0 60px rgba(255,107,0,0.15); }
}

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-img {
  height: 42px; width: auto;
  filter: brightness(1.1) drop-shadow(0 0 10px rgba(255,107,0,0.3));
  transition: var(--transition);
}
.logo:hover .logo-img { filter: brightness(1.2) drop-shadow(0 0 20px rgba(255,107,0,0.5)); transform: scale(1.05); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  color: rgba(255,255,255,0.75);
  font-weight: 500; font-size: 0.9rem;
  transition: var(--transition);
  padding: 8px 16px;
  border-radius: var(--radius-xs);
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute;
  bottom: 2px; left: 50%; width: 0; height: 2px;
  background: var(--gradient-solar);
  transition: var(--transition);
  transform: translateX(-50%);
  border-radius: 2px;
}
.nav-link:hover, .nav-link.active { color: var(--white); }
.nav-link:hover::after, .nav-link.active::after { width: 60%; }

.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 6px; padding: 8px; z-index: 1001;
}
.nav-toggle span {
  width: 28px; height: 2px; background: var(--white);
  transition: var(--transition); border-radius: 2px;
  display: block;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; height: auto;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 120px; padding-bottom: 40px;
  overflow: hidden; z-index: 2;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.05); }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(10,22,40,0.7) 40%, rgba(10,22,40,0.85) 100%);
}
.hero-grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,107,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}
.hero-content { position: relative; z-index: 5; flex: 1; display: flex; align-items: center; justify-content: center; text-align: center; padding-bottom: 40px; width: 100%; margin: 0 auto; }
.hero-left { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; text-align: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255, 107, 0, 0.12);
  border: 1px solid rgba(255, 107, 0, 0.25);
  color: var(--primary-light);
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  position: relative; overflow: hidden;
}
.badge-pulse {
  position: absolute; left: 14px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: badgePulse 2s ease infinite;
}
.hero-badge i { margin-left: 14px; }
@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--primary-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.hero h1 {
  font-size: 4.2rem; font-weight: 900;
  color: var(--white);
  margin-bottom: 24px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-light-muted);
  max-width: 600px;
  margin: 0 auto 36px auto;
  line-height: 1.8;
}
.hero-buttons { display: flex; justify-content: center; gap: 16px; }

/* Hero Stats Bar */
.hero-stats-bar {
  position: relative; width: 100%; margin: 0 auto 40px auto;
  z-index: 5;
}
.stats-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 20px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 28px 48px;
}
.stat-item {
  display: flex; align-items: center; gap: 16px;
  padding: 0 36px;
}
.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255,107,0,0.15);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
}
.stat-number {
  font-family: 'Outfit', sans-serif;
  font-size: 2.2rem; font-weight: 800;
  color: var(--white);
  display: inline;
}
.stat-suffix {
  font-family: 'Outfit', sans-serif;
  font-size: 1.2rem; font-weight: 700;
  color: var(--primary);
}
.stat-item p { color: var(--text-light-muted); font-size: 0.8rem; margin-top: 2px; }
.stat-divider { width: 1px; height: 50px; background: rgba(255,255,255,0.1); }

.hero-wave { position: absolute; bottom: -2px; left: 0; right: 0; z-index: 6; }
.hero-wave svg { width: 100%; height: 120px; display: block; }

/* ===== Subpage Header ===== */
.page-header {
  padding: 160px 0 80px;
  background: var(--gradient-dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,107,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-header h1 {
  font-size: 3.5rem;
  color: var(--white);
  position: relative; z-index: 2;
  margin-bottom: 16px;
}
.page-header p {
  color: var(--text-light-muted);
  font-size: 1.1rem;
  position: relative; z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Hero Animations ===== */
.animate-hero {
  opacity: 0;
  transform: translateY(40px);
  animation: heroFadeIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.animate-hero[data-delay="0"] { animation-delay: 0.3s; }
.animate-hero[data-delay="1"] { animation-delay: 0.5s; }
.animate-hero[data-delay="2"] { animation-delay: 0.7s; }
.animate-hero[data-delay="3"] { animation-delay: 0.9s; }
.animate-hero[data-delay="4"] { animation-delay: 1.1s; }
@keyframes heroFadeIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Marquee ===== */
.marquee-section {
  background: var(--gradient-brand);
  padding: 16px 0;
  overflow: hidden;
  position: relative; z-index: 3;
}
.marquee-track { display: flex; }
.marquee-content {
  display: flex; gap: 50px;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}
.marquee-content span {
  color: var(--white); font-weight: 700;
  font-size: 0.85rem;
  display: flex; align-items: center; gap: 8px;
  text-transform: uppercase; letter-spacing: 1.5px;
}
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-images { position: relative; }
.about-img-main {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  padding: 8px;
}
.about-img-main img {
  width: 100%; height: 420px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
}
.about-experience {
  position: absolute; bottom: -24px; right: -24px;
  background: var(--gradient-solar);
  color: var(--white);
  padding: 28px 34px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-glow);
}
.about-experience span { font-family: 'Outfit', sans-serif; font-size: 3rem; font-weight: 900; display: block; }
.about-experience p { font-size: 0.85rem; font-weight: 600; }
.about-badge {
  position: absolute; top: -16px; left: -16px;
  background: var(--gradient-accent);
  color: var(--white);
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 0.8rem;
  box-shadow: var(--shadow-accent);
}
.about-badge i { font-size: 1.2rem; }

.float-element {
  animation: floatY 4s ease-in-out infinite;
}
.float-element-2 {
  animation: floatY 5s ease-in-out infinite 1s;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.about-content h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 20px; }
.about-content > p { color: var(--text-body); margin-bottom: 32px; font-size: 1.05rem; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.about-feature {
  display: flex; gap: 14px;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.about-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(255,107,0,0.2);
}
.feature-icon-wrap {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: var(--radius-xs);
  background: rgba(255,107,0,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 1.1rem;
}
.about-feature h4 { font-size: 0.95rem; margin-bottom: 4px; }
.about-feature p { font-size: 0.82rem; color: var(--text-body); line-height: 1.5; }

/* ===== Services ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  padding: 36px 28px;
  position: relative; overflow: hidden;
  cursor: default;
}
.service-glow {
  position: absolute; top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(255,107,0,0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}
.service-card:hover .service-glow { opacity: 1; }
.service-card.featured { border-color: rgba(255,107,0,0.4); }
.service-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--gradient-solar);
  color: var(--white);
  padding: 4px 14px; border-radius: var(--radius-pill);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.service-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-sm);
  background: rgba(255,107,0,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; color: var(--primary);
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--gradient-solar);
  color: var(--white);
  box-shadow: var(--shadow-glow);
  transform: scale(1.1);
}
.service-card h3 { font-size: 1.2rem; margin-bottom: 12px; color: var(--white); }
.service-card p { color: var(--text-light-muted); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.7; }
.service-card a {
  color: var(--primary); font-weight: 600; font-size: 0.9rem;
  display: inline-flex; align-items: center; gap: 8px;
  transition: var(--transition);
}
.service-card a:hover { gap: 14px; color: var(--primary-light); }

/* ===== Products ===== */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card { overflow: hidden; }
.product-img-wrap { position: relative; overflow: hidden; }
.product-img-wrap img {
  width: 100%; height: 240px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.08); }
.product-tag-float {
  position: absolute; top: 16px; left: 16px;
  background: var(--gradient-solar);
  color: var(--white);
  padding: 6px 16px; border-radius: var(--radius-pill);
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.product-tag-float.premium { background: var(--gradient-brand); }
.product-tag-float.subsidy { background: var(--gradient-accent); }
.product-info { padding: 24px; }
.product-info h3 { font-size: 1.2rem; margin-bottom: 10px; }
.product-info p { color: var(--text-body); font-size: 0.88rem; margin-bottom: 18px; line-height: 1.6; }
.product-price-row { display: flex; align-items: center; justify-content: space-between; }
.product-price {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem; font-weight: 800;
  color: var(--text-dark);
}
.product-price span { font-size: 0.85rem; font-weight: 400; color: var(--text-muted); }

/* ===== Solar Calculator ===== */
.calculator-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 32px; align-items: start;
}
.calc-form, .calc-results { padding: 36px; }
.calc-form h3, .calc-results h3 {
  font-size: 1.3rem; margin-bottom: 28px;
  color: var(--white);
  display: flex; align-items: center; gap: 10px;
}
.calc-form h3 i, .calc-results h3 i { color: var(--primary); }
.calc-group { margin-bottom: 24px; }
.calc-group label {
  display: block; font-size: 0.85rem;
  font-weight: 600; color: var(--text-light);
  margin-bottom: 10px;
}
.calc-group input[type="range"] {
  width: 100%; height: 6px;
  -webkit-appearance: none; appearance: none;
  background: rgba(255,255,255,0.1);
  border-radius: 10px; outline: none;
  cursor: pointer;
}
.calc-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--gradient-solar);
  box-shadow: 0 0 15px var(--primary-glow);
  cursor: pointer;
  border: 3px solid var(--white);
}
.calc-group input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--gradient-solar);
  box-shadow: 0 0 15px var(--primary-glow);
  cursor: pointer;
  border: 3px solid var(--white);
}
.range-display {
  text-align: right; margin-top: 8px;
}
.range-display span {
  font-family: 'Outfit', sans-serif;
  font-size: 1.3rem; font-weight: 700;
  color: var(--primary);
}
.calc-radio-group { display: flex; gap: 12px; }
.calc-radio {
  flex: 1; padding: 12px; text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  cursor: pointer; transition: var(--transition);
}
.calc-radio span { color: var(--text-light); font-weight: 600; font-size: 0.9rem; }
.calc-radio input { display: none; }
.calc-radio.active, .calc-radio:hover {
  background: rgba(255,107,0,0.15);
  border-color: var(--primary);
}
.calc-radio.active span { color: var(--primary); }

.result-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.result-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 20px; text-align: center;
  transition: var(--transition);
}
.result-card:hover { border-color: rgba(255,107,0,0.3); transform: translateY(-3px); }
.result-card.highlight {
  background: rgba(255,107,0,0.1);
  border-color: rgba(255,107,0,0.3);
}
.result-icon { font-size: 1.5rem; color: var(--primary); margin-bottom: 10px; }
.result-value {
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem; font-weight: 800;
  color: var(--white); margin-bottom: 4px;
}
.result-card.highlight .result-value { color: var(--primary); }
.result-label { font-size: 0.75rem; color: var(--text-light-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* ===== Why Choose Us ===== */
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.advantage-card { padding: 36px 28px; position: relative; overflow: hidden; }
.advantage-number {
  font-family: 'Outfit', sans-serif;
  font-size: 3rem; font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}
.advantage-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.advantage-card p { color: var(--text-body); font-size: 0.9rem; line-height: 1.7; }
.advantage-line {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: var(--gradient-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s ease;
}
.advantage-card:hover .advantage-line { transform: scaleX(1); }

/* ===== CTA Section ===== */
.cta-section {
  background: var(--gradient-brand);
  padding: 100px 0; text-align: center;
  position: relative; overflow: hidden; z-index: 2;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: 2.8rem; color: var(--white); margin-bottom: 18px; }
.cta-content p { color: rgba(255,255,255,0.9); font-size: 1.15rem; margin-bottom: 36px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; }

/* ===== Testimonials ===== */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.testimonial-card { padding: 32px; }
.stars { color: var(--primary); margin-bottom: 18px; font-size: 0.95rem; display: flex; gap: 4px; }
.testimonial-card > p {
  font-size: 0.95rem; color: var(--text-body);
  margin-bottom: 24px; font-style: italic;
  line-height: 1.8;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
}
.testimonial-author h4 { font-size: 0.95rem; }
.testimonial-author span { font-size: 0.8rem; color: var(--text-muted); }

/* ===== Contact ===== */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: start;
}
.contact-info h2 { font-size: 2.2rem; margin-bottom: 16px; color: var(--white); }
.contact-info > p { color: var(--text-light-muted); margin-bottom: 32px; }
.contact-details { display: flex; flex-direction: column; gap: 16px; margin-bottom: 28px; }
.contact-item {
  display: flex; align-items: center; gap: 16px;
  padding: 18px; cursor: default;
}
.contact-icon-wrap {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255,107,0,0.12);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.contact-item h4 { font-size: 0.95rem; margin-bottom: 2px; color: var(--white); }
.contact-item p, .contact-item p a { color: var(--text-light-muted); font-size: 0.9rem; }
.contact-item p a:hover { color: var(--primary); }
.social-links { display: flex; gap: 12px; margin-bottom: 24px; }
.social-links a {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
  font-size: 1rem;
}
.social-links a:hover {
  background: var(--gradient-solar);
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.map-embed { padding: 8px; overflow: hidden; }
.map-embed iframe { border-radius: var(--radius-sm); }

.contact-form-wrap { padding: 36px; }
.contact-form h3 {
  font-size: 1.3rem; margin-bottom: 28px;
  text-align: center; color: var(--white);
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.contact-form h3 i { color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 0.85rem;
  font-weight: 600; margin-bottom: 8px;
  color: var(--text-light);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 13px 18px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  background: rgba(255,255,255,0.06);
  color: var(--white);
  outline: none;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-light-muted); }
.form-group select { color: var(--text-light-muted); }
.form-group select option { background: var(--bg-dark); color: var(--white); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
  background: rgba(255,107,0,0.05);
  box-shadow: 0 0 0 4px rgba(255,107,0,0.1);
}
.form-group textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: var(--white);
  padding: 80px 0 0;
  position: relative; z-index: 2;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px; padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { display: inline-block; margin-bottom: 18px; }
.footer-logo-img {
  height: 50px; width: auto;
  filter: drop-shadow(0 0 15px rgba(255,107,0,0.3));
}
.footer-brand p { color: var(--text-light-muted); font-size: 0.9rem; max-width: 300px; line-height: 1.8; }
.footer-links h4 {
  font-size: 1rem; margin-bottom: 22px;
  position: relative; padding-bottom: 12px;
}
.footer-links h4::after {
  content: ''; position: absolute;
  bottom: 0; left: 0;
  width: 30px; height: 2px;
  background: var(--gradient-solar);
  border-radius: 2px;
}
.footer-links li {
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.footer-links a, .footer-links li {
  color: var(--text-light-muted); font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary); padding-left: 5px; }
.footer-links i { color: var(--primary); font-size: 0.8rem; }
.footer-bottom { text-align: center; padding: 26px 0; }
.footer-bottom p { color: var(--text-light-muted); font-size: 0.85rem; }

/* ===== WhatsApp Floating ===== */
.whatsapp-float {
  position: fixed; bottom: 30px; right: 30px;
  width: 62px; height: 62px;
  background: #25d366;
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 6px 30px rgba(37,211,102,0.4);
  z-index: 999;
  transition: var(--transition);
  animation: whatsappPulse 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.12);
  box-shadow: 0 8px 40px rgba(37,211,102,0.5);
}
@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 6px 30px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 6px 50px rgba(37,211,102,0.6); }
}

/* ===== Scroll to Top ===== */
.scroll-top {
  position: fixed; bottom: 100px; right: 34px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient-solar);
  color: var(--white);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  z-index: 998;
  opacity: 0; visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: var(--shadow-glow);
}
.scroll-top.visible {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.scroll-top:hover { transform: translateY(-4px) scale(1.1); }

/* ===== Scroll Reveal Animations ===== */
.reveal-up {
  opacity: 0; transform: translateY(50px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-up.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0; transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0; transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ===== 3D Tilt Card Perspective ===== */
.tilt-card {
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
  transition: transform 0.15s ease, box-shadow 0.3s ease;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 3rem; }
  .about-grid, .contact-grid, .calculator-grid { grid-template-columns: 1fr; }
  .services-grid, .products-grid, .advantages-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .stats-row { flex-wrap: wrap; gap: 20px; padding: 24px 28px; }
  .stat-divider { display: none; }
  .stat-item { padding: 0 20px; }
  .result-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 0; right: -100%;
    width: 300px; height: 100vh;
    background: var(--bg-dark);
    flex-direction: column;
    padding: 100px 30px 30px;
    gap: 8px;
    transition: var(--transition);
    box-shadow: -10px 0 40px rgba(0,0,0,0.4);
    border-left: 1px solid rgba(255,255,255,0.05);
  }
  .nav-links.active { right: 0; }
  .nav-link { color: var(--text-light) !important; font-size: 1.05rem; padding: 12px 16px; }
  
  .hero h1 { font-size: 2.4rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-buttons { flex-direction: column; }
  .hero-content { padding: 100px 0 220px; }
  .hero-stats-bar { bottom: 40px; }
  .stats-row {
    flex-direction: column; gap: 16px;
    padding: 20px; border-radius: var(--radius-sm);
  }
  .stat-item { padding: 8px 0; }
  
  .section { padding: 80px 0; }
  .section-header h2, .about-content h2, .contact-info h2, .cta-content h2 { font-size: 1.9rem; }
  
  .services-grid, .products-grid, .advantages-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .result-cards { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .calc-radio-group { flex-direction: column; }
  .about-experience { right: 10px; bottom: -15px; padding: 20px 24px; }
  .about-experience span { font-size: 2.2rem; }
  .about-badge { top: 10px; left: 10px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }
  .result-cards { grid-template-columns: 1fr; }
  .logo-img { height: 34px; }
}