/* ============================================================
   REVELYA — style.css
   ============================================================ */

:root {
  --bg:       #0a0f2c;
  --cyan:     #00c8ff;
  --violet:   #7b7fd4;
  --text:     #e8eaf6;
  --panel:    #0d1535;
  --cyan-dim: rgba(0, 200, 255, 0.15);
  --violet-dim: rgba(123, 127, 212, 0.2);
  --glow-cyan: 0 0 24px rgba(0, 200, 255, 0.5);
  --glow-violet: 0 0 24px rgba(123, 127, 212, 0.5);
  --radius: 12px;
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ─────────────────────────────────────────── */

.section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-sub {
  color: rgba(232, 234, 246, 0.7);
  max-width: 580px;
  margin-bottom: 48px;
  font-size: 1.05rem;
}

.title-accent { color: var(--cyan); }

/* ── BUTTONS ─────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.btn-primary:hover {
  background: transparent;
  color: var(--cyan);
  box-shadow: 0 0 36px rgba(0, 200, 255, 0.7);
}

.btn-outline {
  background: transparent;
  color: var(--violet);
  border-color: var(--violet);
}
.btn-outline:hover {
  background: var(--violet-dim);
  box-shadow: var(--glow-violet);
}

.btn-large { padding: 18px 40px; font-size: 1.1rem; }

/* ── NAVBAR ──────────────────────────────────────────────── */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(10, 15, 44, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 200, 255, 0.08);
  transition: background var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 15, 44, 0.95);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--text);
}
.logo-accent { color: var(--cyan); }

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(232, 234, 246, 0.8);
  transition: color var(--transition);
  letter-spacing: 0.5px;
}
.nav-links a:hover { color: var(--cyan); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── HERO ────────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 80px;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 200, 255, 0.18) 0%,
    rgba(123, 127, 212, 0.1) 40%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(0, 200, 255, 0.4);
  background: rgba(0, 200, 255, 0.08);
  color: var(--cyan);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(232, 234, 246, 0.75);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-note {
  font-size: 0.8rem;
  color: rgba(232, 234, 246, 0.4);
  letter-spacing: 0.5px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: rgba(232, 234, 246, 0.4);
  letter-spacing: 1px;
  z-index: 1;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  animation: bounce 1.5s infinite;
}

@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(5px); }
}

/* ── LENS SECTION ────────────────────────────────────────── */

.lens-section {
  padding: 100px 0 120px;
  position: relative;
}

.lens-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.lens-demo-wrapper {
  position: relative;
  max-width: 700px;
  margin: 0 auto 64px;
  user-select: none;
}

.lens-game-text {
  background: var(--panel);
  border-radius: var(--radius);
  border: 1px solid rgba(123, 127, 212, 0.2);
  padding: 40px 48px;
  position: relative;
  overflow: hidden;
}

.lens-game-text::before {
  content: '▶  ANCIENT CHRONICLES — Chapter IV';
  display: block;
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: rgba(232, 234, 246, 0.3);
  margin-bottom: 24px;
  font-family: 'Orbitron', sans-serif;
}

.game-line {
  font-family: 'Georgia', serif;
  font-size: 1.05rem;
  line-height: 1.9;
  color: rgba(232, 234, 246, 0.85);
  padding: 4px 0;
  transition: color 0.3s;
  position: relative;
}

.game-line.active { color: rgba(232, 234, 246, 0.2); }

/* LENS OVERLAY — base visuale condivisa */
.lens-overlay {
  position: absolute;
  border: 2px solid var(--cyan);
  border-radius: 8px;
  box-shadow: var(--glow-cyan), inset 0 0 20px rgba(0, 200, 255, 0.05);
  background: rgba(10, 15, 44, 0.92);
  backdrop-filter: blur(4px);
  pointer-events: none;
  z-index: 10;
  overflow: visible;
}

.lens-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: var(--cyan);
  border-style: solid;
}
.lens-corner.tl { top: -3px; left: -3px; border-width: 2px 0 0 2px; }
.lens-corner.tr { top: -3px; right: -3px; border-width: 2px 2px 0 0; }
.lens-corner.bl { bottom: -3px; left: -3px; border-width: 0 0 2px 2px; }
.lens-corner.br { bottom: -3px; right: -3px; border-width: 0 2px 2px 0; }

.lens-label-top {
  position: absolute;
  top: -20px;
  left: 0;
  font-family: 'Orbitron', sans-serif;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--cyan);
  opacity: 0.8;
}
.lens-label-top span { color: rgba(0, 200, 255, 0.5); }

.lens-translated {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--cyan);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lens-shortcut {
  font-family: 'Orbitron', sans-serif;
  font-size: 8px;
  letter-spacing: 1px;
  color: rgba(0, 200, 255, 0.4);
  border: 1px solid rgba(0, 200, 255, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ── LENS TOGGLE + DEMO V2 ───────────────────────────────── */

.lens-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}

.lens-toggle-label {
  font-size: 0.72rem;
  color: rgba(232, 234, 246, 0.4);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.lens-toggle-btns { display: flex; gap: 8px; }

.lens-mode-btn {
  background: transparent;
  border: 1px solid rgba(0, 200, 255, 0.2);
  color: rgba(232, 234, 246, 0.45);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.78rem;
  padding: 9px 22px;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.25s;
}
.lens-mode-btn:hover:not(.active) {
  border-color: rgba(0, 200, 255, 0.45);
  color: rgba(232, 234, 246, 0.75);
}
.lens-mode-btn.active {
  background: rgba(0, 200, 255, 0.1);
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 200, 255, 0.2);
}

.demo-hidden { display: none !important; }

/* Blocco contenitore condiviso */
.lens-h-block,
.lens-v-block {
  background: #0f1c46;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 200, 255, 0.15);
  padding: 36px 48px;
  overflow: visible;
}

.lens-game-header {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: rgba(232, 234, 246, 0.3);
  margin-bottom: 24px;
}

/* ── Modalità ORIZZONTALE ─────────────────────────────── */

.lens-cover-zone { position: relative; }

.lens-h-line {
  font-family: 'Georgia', serif;
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(232, 234, 246, 0.75);
  margin: 0;
}

.lens-overlay--h {
  left: -20px;
  right: -20px;
  top: -8px;
  display: none;
  flex-direction: column;
  padding: 10px 18px 8px 16px;
  transition: top 0.12s ease;
}

.lens-it-block {
  flex: 1;
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--cyan);
}

.lens-overlay--h .lens-shortcut { align-self: flex-end; }

/* ── Modalità VERTICALE ──────────────────────────────── */

.lens-inventory {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  position: relative;
}

.inv-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 0 20px;
}
.inv-col:first-child { padding-left: 0; }
.inv-col:last-child  { padding-right: 0; }

.inv-col--center {
  position: relative;
  border-left: 1px solid rgba(232, 234, 246, 0.07);
  border-right: 1px solid rgba(232, 234, 246, 0.07);
}

.inv-term {
  font-family: 'Georgia', serif;
  font-size: 0.95rem;
  color: rgba(232, 234, 246, 0.6);
}

.lens-overlay--v {
  top: -10px;
  bottom: -10px;
  left: 33.333%;
  width: 33.333%;
  transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: none;
  flex-direction: column;
  padding: 10px 14px 8px;
}

.inv-col { cursor: pointer; }
.inv-col.lens-active .inv-term { color: rgba(232, 234, 246, 0.15); }

.lens-it-block--v {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.lens-it-block--v span {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  color: var(--cyan);
}

.lens-overlay--v .lens-shortcut { align-self: flex-end; }

/* LENS MODES */
.lens-modes {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.mode-card {
  background: var(--panel);
  border: 1px solid rgba(0, 200, 255, 0.15);
  border-radius: var(--radius);
  padding: 28px 36px;
  text-align: center;
  transition: all var(--transition);
  flex: 1;
  min-width: 200px;
  max-width: 260px;
}
.mode-card:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-4px);
}

.mode-icon { font-size: 1.8rem; margin-bottom: 8px; }
.mode-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.mode-key {
  display: inline-block;
  background: rgba(0, 200, 255, 0.1);
  border: 1px solid rgba(0, 200, 255, 0.3);
  color: var(--cyan);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
  letter-spacing: 1px;
}
.mode-card p { font-size: 0.85rem; color: rgba(232, 234, 246, 0.6); }

/* ── FEATURES ────────────────────────────────────────────── */

.features-section {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(13, 21, 53, 0.5), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.feature-card {
  background: var(--panel);
  border: 1px solid rgba(0, 200, 255, 0.12);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: rgba(0, 200, 255, 0.4);
  box-shadow: var(--glow-cyan);
  transform: translateY(-6px);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 48px;
  height: 48px;
  color: var(--cyan);
  margin-bottom: 20px;
}
.feature-icon svg { width: 100%; height: 100%; }

.feature-card h3 {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  font-size: 0.9rem;
  color: rgba(232, 234, 246, 0.65);
  line-height: 1.7;
}

.feature-disclaimer {
  margin-top: 12px;
  font-size: 0.75rem;
  color: rgba(232, 234, 246, 0.35);
  font-style: italic;
}

.ocr-disclaimer {
  background: rgba(123, 127, 212, 0.08);
  border: 1px solid rgba(123, 127, 212, 0.25);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.disclaimer-icon {
  font-size: 1.2rem;
  color: var(--violet);
  flex-shrink: 0;
  margin-top: 2px;
}
.ocr-disclaimer p {
  font-size: 0.88rem;
  color: rgba(232, 234, 246, 0.6);
  line-height: 1.6;
}
.ocr-disclaimer strong { color: var(--text); }

/* ── PRICE SECTION ───────────────────────────────────────── */

.price-section {
  padding: 100px 0;
  text-align: center;
}

.price-intro {
  text-align: center;
  margin-bottom: 48px;
}
.price-intro-main {
  font-family: 'Inter', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.4;
}
.price-intro-sub {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  color: var(--violet);
  margin: 0;
  line-height: 1.5;
}

.price-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: var(--panel);
  border: 2px solid var(--violet);
  border-radius: 20px;
  padding: 52px 64px;
  box-shadow: var(--glow-violet);
  max-width: 480px;
  width: 100%;
  margin-top: 16px;
}

.price-badge {
  background: rgba(123, 127, 212, 0.15);
  border: 1px solid rgba(123, 127, 212, 0.4);
  color: var(--violet);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 28px;
}

.price-amount {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.2rem;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 12px;
}
.price-amount span {
  font-size: 5rem;
  font-weight: 900;
  display: inline-block;
  text-shadow: var(--glow-cyan);
}

.price-sub {
  color: rgba(232, 234, 246, 0.65);
  font-size: 0.95rem;
  margin-bottom: 28px;
  max-width: 320px;
}

.price-features {
  list-style: none;
  text-align: left;
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}
.price-features li {
  font-size: 0.92rem;
  color: rgba(232, 234, 246, 0.8);
  display: flex;
  align-items: center;
  gap: 8px;
}
.price-features li::before {
  content: '✓';
  color: var(--cyan);
  font-weight: 700;
}

.price-note {
  margin-top: 14px;
  font-size: 0.78rem;
  color: rgba(232, 234, 246, 0.35);
}

/* ── FAQ ─────────────────────────────────────────────────── */

.faq-section {
  padding: 100px 0;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--panel);
  border: 1px solid rgba(123, 127, 212, 0.15);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover { border-color: rgba(0, 200, 255, 0.3); }

.faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  padding: 20px 24px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--cyan); }
.faq-q::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--cyan);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-q::after { transform: rotate(45deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  color: rgba(232, 234, 246, 0.65);
  font-size: 0.92rem;
  line-height: 1.7;
  padding: 0 24px;
}
.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 24px 20px;
}

/* ── FOOTER ──────────────────────────────────────────────── */

.footer {
  border-top: 1px solid rgba(0, 200, 255, 0.08);
  padding: 40px 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo { font-size: 1.1rem; }

.footer-copy {
  font-size: 0.82rem;
  color: rgba(232, 234, 246, 0.35);
}

.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.82rem;
  color: rgba(232, 234, 246, 0.4);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--cyan); }

/* ── SCROLL REVEAL ───────────────────────────────────────── */

.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── BEFORE / AFTER SLIDER ───────────────────────────────── */

.slider-section {
  padding: 100px 0;
  position: relative;
}

.slider-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
}

.slider-outer {
  max-width: 900px;
  margin: 0 auto 24px;
}

.slider-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 200, 255, 0.25);
  box-shadow: 0 0 40px rgba(0, 200, 255, 0.12);
  cursor: ew-resize;
  user-select: none;
  background: var(--panel);
}

.slider-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
}

.slider-img--before {
  /* clip-path set by JS; default 50% */
  clip-path: inset(0 50% 0 0);
  z-index: 2;
}

.slider-img--after {
  z-index: 1;
}

/* Labels */
.slider-label {
  position: absolute;
  top: 16px;
  z-index: 5;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  backdrop-filter: blur(6px);
  pointer-events: none;
}

.slider-label--before {
  left: 16px;
  background: rgba(10, 15, 44, 0.75);
  color: rgba(232, 234, 246, 0.6);
  border: 1px solid rgba(232, 234, 246, 0.1);
}

.slider-label--after {
  right: 16px;
  background: rgba(10, 15, 44, 0.75);
  color: var(--cyan);
  border: 1px solid rgba(0, 200, 255, 0.3);
  text-shadow: 0 0 10px rgba(0, 200, 255, 0.5);
}

/* Handle */
.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%; /* updated by JS */
  transform: translateX(-50%);
  width: 44px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 200, 255, 0.9), 0 0 24px rgba(0, 200, 255, 0.4);
}

.slider-knob {
  position: relative;
  z-index: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 16px rgba(0, 200, 255, 0.7), 0 0 4px rgba(0, 200, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow 0.2s, transform 0.2s;
}

.slider-container:active .slider-knob,
.slider-knob:active {
  box-shadow: 0 0 28px rgba(0, 200, 255, 1), 0 0 8px rgba(0, 200, 255, 0.6);
  transform: scale(1.1);
}

.slider-note {
  text-align: center;
  font-size: 0.82rem;
  color: rgba(232, 234, 246, 0.35);
  letter-spacing: 0.3px;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(10, 15, 44, 0.97);
    border-bottom: 1px solid rgba(0, 200, 255, 0.1);
    padding: 12px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
  }
  .nav-toggle { display: flex; }

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

  .price-box { padding: 36px 24px; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }

  .lens-game-text { padding: 28px 24px; }
  .lens-overlay { left: 8px; right: 8px; }

  .slider-label { font-size: 0.68rem; padding: 4px 8px; }
  .slider-knob { width: 36px; height: 36px; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 320px; justify-content: center; }
}

@media (max-width: 480px) {
  .section-title { font-size: 1.5rem; }
  .hero-title { font-size: 2rem; }
  .price-amount span { font-size: 4rem; }
  .price-box { padding: 28px 20px; }
}