/* ============================================================
   EatScroll Landing Page — Styles
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0f;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --text: #f0f0f5;
  --text-secondary: #8a8a9a;
  --accent: #6C63FF;
  --accent2: #4ECDC4;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
}

button, input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* stagger children */
.features-grid .reveal:nth-child(2) { transition-delay: 0.1s; }
.features-grid .reveal:nth-child(3) { transition-delay: 0.2s; }
.features-grid .reveal:nth-child(4) { transition-delay: 0.3s; }

.stats-grid .reveal:nth-child(2) { transition-delay: 0.1s; }
.stats-grid .reveal:nth-child(3) { transition-delay: 0.2s; }
.stats-grid .reveal:nth-child(4) { transition-delay: 0.3s; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 1px;
  transition: width var(--transition);
}

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

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

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  transition: opacity var(--transition), transform var(--transition);
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(108, 99, 255, 0.12) 0%, rgba(78, 205, 196, 0.06) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 28px;
  width: fit-content;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent2);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(78, 205, 196, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(78, 205, 196, 0); }
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #5a52e0);
  color: #fff;
  box-shadow: 0 4px 24px rgba(108, 99, 255, 0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}

.btn-primary:hover {
  box-shadow: 0 8px 40px rgba(108, 99, 255, 0.45), inset 0 1px 0 rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* ---------- Phone Mockup ---------- */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  position: relative;
}

.phone-frame {
  width: 260px;
  height: 520px;
  border-radius: 36px;
  border: 2px solid var(--border);
  background: rgba(15, 15, 22, 0.9);
  overflow: hidden;
  position: relative;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.04);
}

.phone-notch {
  width: 100px;
  height: 26px;
  background: var(--bg);
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.phone-screen {
  padding: 16px 20px;
  position: relative;
  height: calc(100% - 26px);
}

.screen-content {
  animation: screen-scroll 6s ease-in-out infinite;
}

@keyframes screen-scroll {
  0%, 20% { transform: translateY(0); }
  40%, 60% { transform: translateY(-40px); }
  80%, 100% { transform: translateY(0); }
}

.screen-header-bar {
  width: 60%;
  height: 10px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 5px;
  margin-bottom: 20px;
  opacity: 0.6;
}

.screen-line {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  margin-bottom: 10px;
}

.screen-line.w80 { width: 80%; }
.screen-line.w60 { width: 60%; }
.screen-line.w90 { width: 90%; }
.screen-line.w70 { width: 70%; }
.screen-line.w85 { width: 85%; }
.screen-line.w50 { width: 50%; }
.screen-line.w75 { width: 75%; }
.screen-line.w65 { width: 65%; }
.screen-line.w40 { width: 40%; }

.screen-block {
  width: 100%;
  height: 60px;
  background: rgba(108, 99, 255, 0.08);
  border: 1px solid rgba(108, 99, 255, 0.15);
  border-radius: 8px;
  margin: 14px 0;
}

.eye-tracker {
  position: absolute;
  bottom: 70px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  animation: tracker-bob 3s ease-in-out infinite;
}

@keyframes tracker-bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  30% { transform: translateX(-50%) translateY(-20px); }
  60% { transform: translateX(-50%) translateY(10px); }
}

.tracker-eye {
  filter: drop-shadow(0 0 10px rgba(108, 99, 255, 0.5));
}

.tracker-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.5;
}

.phone-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(ellipse at center, rgba(108, 99, 255, 0.15) 0%, transparent 60%);
  pointer-events: none;
  z-index: -1;
}

/* scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--border-hover);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  border-radius: 2px;
  background: var(--text-secondary);
  animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(12px); }
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(108, 99, 255, 0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding: 120px 0;
  position: relative;
}

.steps-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.steps-line {
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
  border-radius: 1px;
}

.steps-line-fill {
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--accent), var(--accent2));
  border-radius: 1px;
  transition: height 0.1s linear;
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr 200px;
  gap: 32px;
  align-items: start;
  padding: 32px 0;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  z-index: 1;
  transition: border-color var(--transition), color var(--transition);
}

.step.visible .step-number {
  border-color: var(--accent);
  color: var(--accent);
}

.step-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.step-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Step illustrations */
.step-visual {
  display: flex;
  justify-content: center;
}

.step-illustration {
  width: 160px;
  height: 120px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

/* calibrate illustration */
.calibrate-ill {
  display: flex;
  align-items: center;
  justify-content: center;
}

.cal-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: cal-pulse 3s ease-in-out infinite;
}

.cal-dot-1 { top: 20px; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.cal-dot-2 { bottom: 20px; left: 30px; animation-delay: 1s; }
.cal-dot-3 { bottom: 20px; right: 30px; animation-delay: 2s; }

.cal-cursor {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent2);
  position: absolute;
  box-shadow: 0 0 12px var(--accent2);
  animation: cal-move 3s ease-in-out infinite;
}

@keyframes cal-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

@keyframes cal-move {
  0%, 10% { top: 22px; left: calc(50% - 4px); }
  30%, 40% { top: calc(100% - 30px); left: 32px; }
  60%, 70% { top: calc(100% - 30px); right: 32px; left: auto; }
  90%, 100% { top: 22px; left: calc(50% - 4px); }
}

/* read illustration */
.read-ill {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
}

.read-line {
  height: 4px;
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
}

.read-line.short { width: 60%; }
.read-line.med { width: 80%; }

.read-highlight {
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  height: 4px;
  background: linear-gradient(90deg, rgba(108, 99, 255, 0.3), rgba(78, 205, 196, 0.3));
  border-radius: 2px;
  animation: read-scan 3s ease-in-out infinite;
}

@keyframes read-scan {
  0% { top: 16px; opacity: 0.8; }
  100% { top: calc(100% - 20px); opacity: 0.3; }
}

/* scroll illustration */
.scroll-ill {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.scroll-phone-mini {
  width: 36px;
  height: 56px;
  border-radius: 6px;
  border: 1.5px solid var(--border-hover);
  overflow: hidden;
  position: relative;
}

.scroll-content-mini {
  position: absolute;
  top: 0;
  left: 4px;
  right: 4px;
  height: 120px;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.06) 0px,
    rgba(255,255,255,0.06) 3px,
    transparent 3px,
    transparent 7px
  );
  animation: mini-scroll 3s ease-in-out infinite;
}

@keyframes mini-scroll {
  0%, 20% { transform: translateY(0); }
  50%, 70% { transform: translateY(-50px); }
  100% { transform: translateY(0); }
}

.scroll-eye-mini {
  opacity: 0.7;
}

.scroll-arrow-mini {
  animation: arrow-bounce 1.5s ease-in-out infinite;
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(4px); opacity: 1; }
}

/* ============================================================
   STATS
   ============================================================ */
.stats {
  padding: 80px 0;
  position: relative;
}

.stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 800px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.stats::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 800px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 24px;
}

.stat-item .stat-value,
.stat-item .stat-value-prefix {
  display: inline;
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 2px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
  opacity: 0.7;
}

/* ============================================================
   DOWNLOAD / CTA
   ============================================================ */
.download {
  padding: 120px 0;
}

.download-card {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 64px;
  overflow: hidden;
}

.download-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(108, 99, 255, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.download-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.download-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.download-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.download-btn {
  margin: 0 auto;
}

.divider-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 48px 0;
  position: relative;
  z-index: 1;
}

.waitlist {
  text-align: center;
  position: relative;
  z-index: 1;
}

.waitlist-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.waitlist-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 24px;
}

.waitlist-form .form-group {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto;
}

.waitlist-form input[type="email"] {
  flex: 1;
  padding: 14px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.92rem;
  transition: border-color var(--transition);
}

.waitlist-form input[type="email"]::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.waitlist-form input[type="email"]:focus {
  border-color: var(--accent);
}

.waitlist-form .btn {
  flex-shrink: 0;
}

.btn-loader {
  animation: spin 1s linear infinite;
  display: inline-flex;
}

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

.form-message {
  margin-top: 16px;
  font-size: 0.88rem;
  min-height: 20px;
}

.form-message.success {
  color: var(--accent2);
}

.form-message.error {
  color: #ff6b6b;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo {
  margin-bottom: 12px;
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links-group {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  color: var(--text-secondary);
  transition: color var(--transition);
  display: flex;
}

.footer-socials a:hover {
  color: var(--text);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-content {
    gap: 40px;
  }

  .features-grid {
    gap: 16px;
  }

  .step {
    grid-template-columns: 56px 1fr 160px;
    gap: 24px;
  }

  .step-illustration {
    width: 140px;
    height: 100px;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  /* mobile menu open */
  .navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    animation: slideDown 0.3s ease;
  }

  .navbar.menu-open .nav-cta {
    display: inline-flex;
    position: absolute;
    top: calc(72px + 120px);
    left: 24px;
    animation: slideDown 0.3s ease;
    animation-delay: 0.1s;
    animation-fill-mode: both;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-scroll-hint {
    display: none;
  }

  .phone-frame {
    width: 220px;
    height: 440px;
    border-radius: 30px;
  }

  .features {
    padding: 80px 0;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-card {
    padding: 28px;
  }

  .how-it-works {
    padding: 80px 0;
  }

  .step {
    grid-template-columns: 44px 1fr;
    gap: 16px;
  }

  .step-number {
    width: 44px;
    height: 44px;
    font-size: 0.75rem;
  }

  .steps-line {
    left: 21px;
  }

  .step-visual {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .download {
    padding: 80px 0;
  }

  .download-card {
    padding: 40px 24px;
    border-radius: var(--radius-lg);
  }

  .waitlist-form .form-group {
    flex-direction: column;
  }

  .waitlist-form .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-top {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links-group {
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.4rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .stat-item {
    padding: 16px 8px;
  }
}