/* ============================================
   GRAKELLIS - Premium Garbage Disposal Landing Page
   Futuristic 3D/Glassmorphism Theme
   ============================================ */

:root {
  --bg-primary: #050b1a;
  --bg-secondary: #0a1628;
  --bg-tertiary: #0f1e38;
  --accent-primary: #38bdf8;
  --accent-secondary: #0ea5e9;
  --accent-tertiary: #06b6d4;
  --accent-gold: #f59e0b;
  --accent-gold-light: #fbbf24;
  --text-primary: #e6f1ff;
  --text-secondary: #a8c2dc;
  --text-muted: #6b8bb0;
  --border-glass: rgba(56, 189, 248, 0.15);
  --glass-bg: rgba(15, 30, 56, 0.5);
  --glass-bg-strong: rgba(15, 30, 56, 0.7);
  --shadow-glow: 0 0 60px rgba(56, 189, 248, 0.3);
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 30px 80px rgba(6, 182, 212, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*::selection {
  background: var(--accent-primary);
  color: var(--bg-primary);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }

p { color: var(--text-secondary); }

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover { color: var(--accent-gold-light); }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================
   BACKGROUND EFFECTS
   ============================================ */

.bg-effects {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #0ea5e9, transparent 70%);
  top: -100px;
  left: -150px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #06b6d4, transparent 70%);
  top: 40%;
  right: -100px;
  animation-delay: -5s;
}

.orb-3 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #f59e0b22, transparent 70%);
  bottom: -200px;
  left: 30%;
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-primary);
  animation: particleFloat 15s linear infinite;
}

@keyframes particleFloat {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% { transform: translateY(-100px) translateX(100px); opacity: 0; }
}

/* ============================================
   READING PROGRESS BAR
   ============================================ */

.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-gold));
  box-shadow: 0 0 15px var(--accent-primary);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
  background: transparent;
}

.site-header.scrolled {
  background: rgba(5, 11, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 0.75rem 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  position: relative;
}

.logo-svg {
  width: 180px;
  height: auto;
  filter: drop-shadow(0 4px 20px rgba(56, 189, 248, 0.3));
  transition: var(--transition);
}

.logo:hover .logo-svg {
  filter: drop-shadow(0 4px 30px rgba(56, 189, 248, 0.6));
  transform: translateY(-2px);
}

.logo-circle {
  animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-gold));
  transition: width 0.3s ease;
}

.main-nav a:not(.nav-cta):hover::after { width: 100%; }

.main-nav a:not(.nav-cta):hover { color: var(--text-primary); }

.nav-cta {
  padding: 0.65rem 1.3rem !important;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white !important;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.4);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.6);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu span {
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  padding: 8rem 0 4rem;
  position: relative;
  display: flex;
  align-items: center;
  perspective: 1000px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-bottom: 1.5rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-gold);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero h1 {
  background: linear-gradient(135deg, #ffffff 0%, #a8c2dc 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  font-weight: 800;
}

.hero-intro {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 560px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.8rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
  opacity: 0;
  transition: opacity 0.35s ease;
}

.btn-primary span,
.btn-primary svg { position: relative; z-index: 1; }

.btn-primary:hover::before { opacity: 1; }

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(245, 158, 11, 0.5);
  color: white;
}

.btn-ghost {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-ghost:hover {
  background: var(--glass-bg-strong);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  color: var(--text-primary);
}

.btn-lg { padding: 1.1rem 2.2rem; font-size: 1.05rem; }

.hero-stats {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.stat {
  text-align: left;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   DISPOSAL ANIMATION SCENE
   ============================================ */

.hero-visual {
  position: relative;
  height: 550px;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px;
}

.disposal-scene {
  position: relative;
  width: 100%;
  max-width: 500px;
  height: 500px;
  transform-style: preserve-3d;
  animation: sceneRotate 20s ease-in-out infinite;
}

@keyframes sceneRotate {
  0%, 100% { transform: rotateX(8deg) rotateY(-5deg); }
  50% { transform: rotateX(5deg) rotateY(5deg); }
}

.sink-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 2px solid;
  transform: translate(-50%, -50%);
  opacity: 0.4;
}

.ring-outer {
  width: 450px;
  height: 450px;
  border-color: var(--accent-primary);
  animation: ringPulse 4s ease-in-out infinite;
}

.ring-mid {
  width: 350px;
  height: 350px;
  border-color: var(--accent-tertiary);
  animation: ringPulse 4s ease-in-out infinite 1s;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.2; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.05); }
}

.disposal-unit {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 280px;
  transform-style: preserve-3d;
  animation: disposalFloat 6s ease-in-out infinite;
}

@keyframes disposalFloat {
  0%, 100% { transform: translate(-50%, -50%) translateY(0) rotateY(0deg); }
  50% { transform: translate(-50%, -50%) translateY(-15px) rotateY(10deg); }
}

.disposal-body {
  width: 180px;
  height: 200px;
  margin: 0 auto;
  background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
  border-radius: 20px 20px 40px 40px;
  position: relative;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 0 40px rgba(56, 189, 248, 0.3);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.disposal-lid {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 30px;
  background: linear-gradient(145deg, #334155, #1e293b);
  border-radius: 50%;
  box-shadow:
    0 4px 15px rgba(0, 0, 0, 0.5),
    inset 0 2px 4px rgba(255, 255, 255, 0.2);
}

.lid-glow {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.4), transparent 70%);
  animation: lidGlow 3s ease-in-out infinite;
}

@keyframes lidGlow {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

.disposal-ring {
  position: absolute;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 8px;
  background: linear-gradient(90deg, #64748b, #94a3b8, #64748b);
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.disposal-bolts {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.disposal-bolts span {
  width: 14px;
  height: 14px;
  background: radial-gradient(circle at 30% 30%, #e2e8f0, #64748b);
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  justify-self: center;
  align-self: center;
}

.disposal-grind {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.grind-plate {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle at center, #0f172a, #1e293b);
  border: 2px solid var(--accent-primary);
  box-shadow:
    0 0 30px rgba(56, 189, 248, 0.6),
    inset 0 0 20px rgba(56, 189, 248, 0.2);
  position: relative;
  animation: grindSpin 4s linear infinite;
}

@keyframes grindSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.grind-plate span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  transform-origin: 0 50%;
  border-radius: 2px;
}

.grind-plate span:nth-child(1) { transform: translate(0, -50%) rotate(0deg); }
.grind-plate span:nth-child(2) { transform: translate(0, -50%) rotate(45deg); }
.grind-plate span:nth-child(3) { transform: translate(0, -50%) rotate(90deg); }
.grind-plate span:nth-child(4) { transform: translate(0, -50%) rotate(135deg); }
.grind-plate span:nth-child(5) { transform: translate(0, -50%) rotate(180deg); }
.grind-plate span:nth-child(6) { transform: translate(0, -50%) rotate(225deg); }
.grind-plate span:nth-child(7) { transform: translate(0, -50%) rotate(270deg); }
.grind-plate span:nth-child(8) { transform: translate(0, -50%) rotate(315deg); }

.disposal-base {
  width: 100px;
  height: 25px;
  background: linear-gradient(145deg, #475569, #334155);
  margin: -5px auto 0;
  border-radius: 0 0 20px 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

/* Water drops */
.water-drops {
  position: absolute;
  left: 50%;
  top: 20%;
  transform: translateX(-50%);
  width: 100px;
  height: 300px;
}

.drop {
  position: absolute;
  width: 8px;
  height: 14px;
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.8), rgba(14, 165, 233, 0.4));
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
  animation: dropFall 2s linear infinite;
  left: 50%;
}

.drop:nth-child(1) { animation-delay: 0s; left: 40%; }
.drop:nth-child(2) { animation-delay: 0.4s; left: 55%; }
.drop:nth-child(3) { animation-delay: 0.8s; left: 45%; }
.drop:nth-child(4) { animation-delay: 1.2s; left: 60%; }
.drop:nth-child(5) { animation-delay: 1.6s; left: 50%; }

@keyframes dropFall {
  0% { transform: translateY(-50px) scale(0.5); opacity: 0; }
  20% { opacity: 1; transform: translateY(0) scale(1); }
  100% { transform: translateY(300px) scale(0.3); opacity: 0; }
}

/* Pipes */
.pipe {
  position: absolute;
  width: 15px;
  height: 120px;
  background: linear-gradient(90deg, #475569, #64748b, #475569);
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.pipe-left {
  left: calc(50% - 100px);
  top: 60%;
  transform: rotate(-30deg);
}

.pipe-right {
  right: calc(50% - 100px);
  top: 60%;
  transform: rotate(30deg);
}

/* Flow particles */
.flow-particles {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
}

.flow-particles span {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-primary);
  animation: flowOut 3s linear infinite;
}

.flow-particles span:nth-child(1) { animation-delay: 0s; }
.flow-particles span:nth-child(2) { animation-delay: 0.6s; }
.flow-particles span:nth-child(3) { animation-delay: 1.2s; }
.flow-particles span:nth-child(4) { animation-delay: 1.8s; }
.flow-particles span:nth-child(5) { animation-delay: 2.4s; }

@keyframes flowOut {
  0% { transform: translate(0, 0) scale(1); opacity: 1; }
  100% { transform: translate(var(--fx, 100px), var(--fy, 50px)) scale(0); opacity: 0; }
}

.flow-particles span:nth-child(1) { --fx: 120px; --fy: 60px; }
.flow-particles span:nth-child(2) { --fx: -120px; --fy: 80px; }
.flow-particles span:nth-child(3) { --fx: 80px; --fy: -100px; }
.flow-particles span:nth-child(4) { --fx: -100px; --fy: -80px; }
.flow-particles span:nth-child(5) { --fx: 0px; --fy: 130px; }

/* Scan grid overlay */
.scan-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(56, 189, 248, 0.1) 1px, transparent 1px);
  background-size: 100% 20px;
  animation: scanMove 4s linear infinite;
  opacity: 0.4;
  pointer-events: none;
  mask-image: radial-gradient(circle at center, black 20%, transparent 70%);
}

@keyframes scanMove {
  from { background-position: 0 0; }
  to { background-position: 0 20px; }
}

.inspection-badge {
  position: absolute;
  top: 10%;
  right: 5%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--accent-gold);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  color: var(--accent-gold-light);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.3);
  animation: badgeFloat 4s ease-in-out infinite;
}

@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  opacity: 0.7;
  animation: scrollBounce 2s ease-in-out infinite;
}

.mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.wheel {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 2px;
  animation: wheelScroll 1.5s ease-in-out infinite;
}

@keyframes wheelScroll {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 15px); opacity: 0; }
}

@keyframes scrollBounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 5px); }
}

/* ============================================
   ARTICLE CONTENT
   ============================================ */

.article-content {
  padding: 5rem 0;
  position: relative;
}

.section {
  margin-bottom: 5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-label {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(245, 158, 11, 0.15));
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  color: var(--accent-primary);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section h2 {
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff, #a8c2dc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

.section a:not(.btn) {
  color: var(--accent-gold-light);
  border-bottom: 1px dashed var(--accent-gold);
  padding-bottom: 1px;
}

.section a:not(.btn):hover {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* ============================================
   FREQUENCY CARDS
   ============================================ */

.frequency-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.freq-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.freq-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.freq-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.freq-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-elevated);
}

.freq-card:hover::before {
  transform: scaleX(1);
}

.freq-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(6, 182, 212, 0.1));
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--accent-primary);
}

.freq-card h3 {
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.freq-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ============================================
   SIGNS GRID
   ============================================ */

.signs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.sign-item {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  transition: var(--transition);
  opacity: 0;
  transform: translateY(30px);
}

.sign-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.sign-item:hover {
  transform: translateY(-5px);
  border-color: var(--accent-gold);
  box-shadow: 0 20px 40px rgba(245, 158, 11, 0.15);
}

.sign-marker {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.sign-item h3 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.sign-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

/* ============================================
   SERVICE BENEFITS
   ============================================ */

.service-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.benefit {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 500;
  transition: var(--transition);
}

.benefit:hover {
  border-color: var(--accent-primary);
  transform: translateX(5px);
}

.benefit svg {
  color: var(--accent-primary);
  flex-shrink: 0;
}

/* ============================================
   FAQ ACCORDION
   ============================================ */

.faq-list {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(56, 189, 248, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.05rem;
  font-family: inherit;
  gap: 1rem;
}

.faq-icon {
  flex-shrink: 0;
  color: var(--accent-primary);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-gold);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-answer p {
  margin: 0;
  font-size: 0.98rem;
}

/* ============================================
   FINAL CTA
   ============================================ */

.final-cta {
  padding: 4rem 0;
}

.cta-card {
  position: relative;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(245, 158, 11, 0.1));
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2), transparent 60%);
  pointer-events: none;
}

.cta-card h2 {
  margin-bottom: 1rem;
  position: relative;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.cta-card > p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
  position: relative;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  margin-bottom: 1.5rem;
}

.cta-note {
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  padding: 4rem 0 2rem;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col li {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-col a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--accent-primary);
  padding-left: 4px;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-links a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-links a:hover {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  transform: translateY(-3px);
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.4);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-glass);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================
   BACK TO TOP
   ============================================ */

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(56, 189, 248, 0.6);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-visual { height: 450px; }
  .frequency-cards { grid-template-columns: 1fr; }
  .signs-grid { grid-template-columns: 1fr; }
  .service-benefits { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero { padding: 6rem 0 3rem; }
  .main-nav { display: none; }
  .mobile-menu { display: flex; }
  .main-nav.mobile-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--glass-bg-strong);
    backdrop-filter: blur(20px);
    padding: 1.5rem;
    border-top: 1px solid var(--border-glass);
    gap: 1rem;
  }
  .hero-visual { height: 400px; }
  .hero-stats { gap: 1.5rem; }
  .stat-number { font-size: 2rem; }
  .cta-card { padding: 2.5rem 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .back-to-top { bottom: 1.5rem; right: 1.5rem; width: 44px; height: 44px; }
  .disposal-scene { transform: scale(0.85); }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .section { margin-bottom: 3.5rem; }
  .disposal-scene { transform: scale(0.7); }
}

/* ============================================
   ACCESSIBILITY - Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .disposal-scene { animation: none !important; transform: none; }
  .disposal-unit { animation: none; }
  .grind-plate { animation: none; }
  .gradient-orb { animation: none; }
  .drop { animation: none; opacity: 0.5; }
  .particles { display: none; }
}