/* style.css */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #05060d;
  --bg-2: #0a0c1a;
  --surface: rgba(20, 24, 45, 0.55);
  --surface-2: rgba(30, 35, 65, 0.35);
  --border: rgba(123, 97, 255, 0.18);
  --border-strong: rgba(0, 242, 255, 0.35);
  --text: #e8ecff;
  --text-dim: #9aa4c7;
  --text-mute: #6a7498;
  --accent: #00f2ff;
  --accent-2: #7b61ff;
  --accent-3: #ff3c8c;
  --grad-1: linear-gradient(135deg, #00f2ff 0%, #7b61ff 100%);
  --grad-2: linear-gradient(135deg, #7b61ff 0%, #ff3c8c 100%);
  --grad-3: linear-gradient(135deg, #00f2ff 0%, #ff3c8c 100%);
  --glow-cyan: 0 0 40px rgba(0, 242, 255, 0.35);
  --glow-purple: 0 0 40px rgba(123, 97, 255, 0.35);
  --shadow-deep: 0 30px 80px rgba(0, 0, 0, 0.5);
  --radius: 20px;
  --radius-sm: 12px;
  --max-w: 1200px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 10% 10%, rgba(0, 242, 255, 0.08), transparent 40%),
    radial-gradient(circle at 90% 30%, rgba(123, 97, 255, 0.10), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(255, 60, 140, 0.06), transparent 50%);
  background-attachment: fixed;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

/* Progress Bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--grad-1);
  z-index: 9999;
  box-shadow: 0 0 10px var(--accent);
  transition: width 0.1s linear;
}

/* Cursor Glow */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(0, 242, 255, 0.08), transparent 60%);
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: opacity 0.3s ease;
  mix-blend-mode: screen;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(5, 6, 13, 0.65);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.logo-text {
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-1);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a:hover::after {
  width: 100%;
}

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

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 60px;
  perspective: 1200px;
}

.particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 1;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-10vh) translateX(50px); opacity: 0; }
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.85;
}

.hero-svg {
  width: 100%;
  height: 100%;
}

.pipe-path, .pipe-path-2, .pipe-path-3 {
  stroke-dasharray: 2000;
  stroke-dashoffset: 2000;
  animation: drawPipe 3s ease-out forwards;
}

.pipe-path-2 { animation-delay: 0.5s; }
.pipe-path-3 { animation-delay: 1s; }

@keyframes drawPipe {
  to { stroke-dashoffset: 0; }
}

.water-drop {
  animation: flowWater 5s linear infinite;
}

.water-drop-2 {
  animation: flowWater 7s linear infinite;
  animation-delay: 1s;
}

@keyframes flowWater {
  0% { transform: translate(0, 0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translate(700px, 20px); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  animation: heroReveal 1.2s ease-out;
}

@keyframes heroReveal {
  from { opacity: 0; transform: translateY(40px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.hero-tag {
  display: inline-block;
  padding: 8px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.8rem);
  background: linear-gradient(135deg, #fff 0%, var(--accent) 50%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--text-dim);
  max-width: 720px;
  margin: 0 auto 32px;
}

.hero-meta {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--text-mute);
  font-size: 0.9rem;
}

/* Sections */
.section {
  position: relative;
  padding: 120px 0;
  z-index: 5;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  padding-left: 40px;
  position: relative;
}

.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin-bottom: 48px;
  max-width: 800px;
}

.inline-link {
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px dashed var(--accent);
  padding-bottom: 2px;
}

.inline-link:hover {
  color: var(--accent-3);
  border-bottom-color: var(--accent-3);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Intro Grid */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.intro-card {
  background: var(--surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.intro-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.intro-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-strong);
  box-shadow: var(--glow-cyan);
}

.intro-card:hover::before { opacity: 1; }

.intro-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.intro-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text);
}

.intro-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Compare */
.compare-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background: var(--surface);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.compare-side h3 {
  color: var(--accent);
  margin-bottom: 18px;
  font-size: 1.2rem;
}

.compare-side ul {
  list-style: none;
}

.compare-side li {
  padding: 10px 0 10px 28px;
  position: relative;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}

.compare-side li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-2);
  font-size: 1.2em;
}

/* Impact Grid */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.impact-item {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.impact-item:hover {
  transform: translateY(-6px) rotateX(4deg);
  border-color: var(--border-strong);
}

.impact-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--grad-2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.8;
  line-height: 1;
  margin-bottom: 12px;
}

.impact-item h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text);
}

.impact-item p {
  color: var(--text-dim);
  font-size: 0.92rem;
}

/* Factors */
.factors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.factor-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  transition: all 0.4s ease;
  overflow: hidden;
}

.factor-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(123, 97, 255, 0.2), transparent 70%);
  border-radius: 50%;
  transform: translate(40%, -40%);
  transition: all 0.5s ease;
}

.factor-card:hover::after {
  transform: translate(20%, -20%) scale(1.4);
}

.factor-card:hover {
  border-color: var(--border-strong);
  transform: scale(1.02);
}

.factor-num {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 8px;
}

.factor-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text);
}

.factor-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Process Timeline */
.process-timeline {
  position: relative;
  padding-left: 60px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), var(--accent-3));
  opacity: 0.4;
}

.process-step {
  position: relative;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(14px);
  transition: all 0.4s ease;
}

.process-step:hover {
  border-color: var(--border-strong);
  transform: translateX(8px);
  box-shadow: var(--glow-purple);
}

.step-marker {
  position: absolute;
  left: -60px;
  top: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--grad-1);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: var(--glow-cyan);
}

.process-step h3 {
  color: var(--text);
  margin-bottom: 8px;
}

.process-step p {
  color: var(--text-dim);
}

/* Benefits Float */
.benefits-float {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.benefit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  backdrop-filter: blur(16px);
  transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.benefit-card:nth-child(odd) { animation: floatY 6s ease-in-out infinite; }
.benefit-card:nth-child(even) { animation: floatY 6s ease-in-out infinite reverse; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.benefit-card:hover {
  transform: translateY(-12px) scale(1.03);
  border-color: var(--accent);
  box-shadow: var(--glow-cyan);
  animation-play-state: paused;
}

.benefit-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.benefit-card h3 {
  color: var(--text);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.benefit-card p {
  color: var(--text-dim);
  font-size: 0.92rem;
}

/* Tips Grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.tip-card {
  background: linear-gradient(145deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  cursor: pointer;
  position: relative;
}

.tip-card:hover {
  transform: translateY(-8px) rotate(-1deg);
  border-color: var(--accent-2);
  box-shadow: var(--glow-purple);
}

.tip-number {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--accent-3);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
}

.tip-card h3 {
  color: var(--text);
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.tip-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Problems */
.problem-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.problem-item {
  background: var(--surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.4s ease;
}

.problem-item:hover {
  border-left-color: var(--accent-3);
  transform: translateX(6px);
  box-shadow: var(--shadow-deep);
}

.problem-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.problem-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--grad-1);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

.problem-item h3 {
  color: var(--text);
  font-size: 1.25rem;
}

.problem-item p {
  color: var(--text-dim);
  margin-bottom: 14px;
}

.problem-signs {
  padding: 14px 18px;
  background: rgba(0, 242, 255, 0.06);
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 0.92rem;
  color: var(--text-dim);
}

.problem-signs strong {
  color: var(--accent);
}

/* Cost */
.cost-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
  margin-bottom: 32px;
}

.cost-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.4s ease;
}

.cost-card:hover {
  border-color: var(--accent-2);
  transform: translateY(-6px);
  box-shadow: var(--glow-purple);
}

.cost-card h3 {
  color: var(--text);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.cost-range {
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}

.cost-card p {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.maintenance-tip {
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.12), rgba(123, 97, 255, 0.08));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
}

.maintenance-tip h3 {
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.maintenance-tip p {
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.open {
  border-color: var(--border-strong);
  box-shadow: var(--glow-cyan);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  padding: 24px 28px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 1.05rem;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad-1);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 28px;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 28px 24px;
}

.faq-answer p {
  color: var(--text-dim);
  line-height: 1.75;
}

/* Takeaway */
.takeaway-card {
  background: linear-gradient(135deg, var(--surface), rgba(123, 97, 255, 0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin: 36px 0;
}

.takeaway-card h3 {
  color: var(--accent);
  margin-bottom: 18px;
  font-size: 1.3rem;
}

.takeaway-card ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.takeaway-card li {
  padding: 14px 18px 14px 46px;
  background: rgba(0, 242, 255, 0.05);
  border-radius: 10px;
  color: var(--text-dim);
  position: relative;
  transition: all 0.3s ease;
}

.takeaway-card li::before {
  content: '✓';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-weight: 700;
}

.takeaway-card li:hover {
  background: rgba(0, 242, 255, 0.1);
  transform: translateX(4px);
  color: var(--text);
}

/* CTA 3D */
.cta-3d {
  margin-top: 48px;
  perspective: 1000px;
}

.cta-inner {
  background: linear-gradient(135deg, rgba(0, 242, 255, 0.15), rgba(123, 97, 255, 0.15));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 48px 36px;
  text-align: center;
  backdrop-filter: blur(20px);
  transition: transform 0.5s ease;
  transform-style: preserve-3d;
}

.cta-inner:hover {
  transform: rotateX(4deg) rotateY(-4deg);
}

.cta-inner h3 {
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 12px;
}

.cta-inner p {
  color: var(--text-dim);
  margin-bottom: 24px;
}

.cta-btn {
  display: inline-block;
  padding: 16px 40px;
  background: var(--grad-1);
  color: #000;
  font-weight: 700;
  border-radius: 100px;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  transition: all 0.3s ease;
  box-shadow: 0 10px 40px rgba(0, 242, 255, 0.4);
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 50px rgba(0, 242, 255, 0.6);
}

/* Footer */
.footer {
  position: relative;
  padding: 80px 0 32px;
  background: linear-gradient(180deg, transparent, rgba(10, 12, 26, 0.9));
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.footer-visual {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  opacity: 0.4;
}

.footer-svg {
  width: 100%;
  height: 100%;
}

.wave {
  animation: waveMove 10s ease-in-out infinite;
  transform-origin: center;
}

.w2 { animation-delay: -3s; }
.w3 { animation-delay: -6s; }

@keyframes waveMove {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-20px); }
}

.footer-container {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col h4 {
  color: var(--accent);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.footer-topic-desc {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.footer-nap p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.footer-nap a {
  color: var(--accent);
  font-weight: 600;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  padding: 6px 0;
}

.footer-col li a {
  color: var(--text-dim);
  font-size: 0.9rem;
  transition: all 0.25s ease;
}

.footer-col li a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-col li:not(:has(a)) {
  color: var(--text-mute);
  font-size: 0.88rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-mute);
  font-size: 0.85rem;
}

.footer-legal {
  display: flex;
  gap: 22px;
}

.footer-legal a {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer-legal a:hover {
  color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(5, 6, 13, 0.96);
    backdrop-filter: blur(20px);
    padding: 28px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-150%);
    transition: transform 0.4s ease;
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .compare-card {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 540px) {
  .section { padding: 80px 0; }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-meta {
    gap: 16px;
    font-size: 0.82rem;
  }
  .process-timeline {
    padding-left: 50px;
  }
  .step-marker {
    left: -50px;
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}