/* AiTech Academy · SONIC IA Design System (Official Lime & Black Brand Identity) */

:root {
  --bg-main: #040711;
  --bg-card: rgba(255, 255, 255, 0.065);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --sonic-line: rgba(186, 255, 54, 0.22);
  --border-line: rgba(255, 255, 255, 0.1);
  --lime: #baff36;
  --lime-light: #dfff8a;
  --lime-glow: rgba(186, 255, 54, 0.25);
  --mint: #28f0a3;
  --gold: #f5c451;
  --text-main: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.68);
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 32px;
  --radius-pill: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sonic-landing-ar {
  direction: rtl;
  text-align: right;
  --font-sans: 'Tajawal', 'Cairo', system-ui, sans-serif;
}

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

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 12% 0%, rgba(186, 255, 54, 0.16) 0%, transparent 35%),
    radial-gradient(circle at 82% 14%, rgba(40, 240, 163, 0.14) 0%, transparent 30%),
    linear-gradient(180deg, #020705 0%, #07130b 50%, #03050c 100%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

.sonic-wrap {
  width: min(1340px, calc(100% - 48px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(4, 7, 17, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sonic-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
}

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

.brand-img-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--lime);
}

.lang-selector {
  display: flex;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--sonic-line);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 900;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: var(--transition);
}

.lang-btn.active {
  background: linear-gradient(135deg, var(--lime), var(--mint));
  color: #06110a;
  box-shadow: 0 4px 14px var(--lime-glow);
}

/* BUTTONS */
.button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.button.primary, .btn-lime {
  background: linear-gradient(135deg, var(--lime), var(--mint));
  color: #06110a;
  border-color: rgba(186, 255, 54, 0.6);
  box-shadow: 0 12px 30px var(--lime-glow);
}

.button.primary:hover, .btn-lime:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(186, 255, 54, 0.4);
}

.button.secondary, .btn-outline {
  border-color: var(--sonic-line);
  color: #ecffd2;
  background: rgba(186, 255, 54, 0.06);
}

.button.secondary:hover, .btn-outline:hover {
  background: rgba(186, 255, 54, 0.14);
  transform: translateY(-2px);
}

/* HERO SECTION */
.sonic-hero {
  min-height: 720px;
  padding: 80px 0 70px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  gap: 64px;
  align-items: center;
}

.sonic-kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--sonic-line);
  border-radius: var(--radius-pill);
  color: var(--lime);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 11px;
  background: rgba(186, 255, 54, 0.08);
  backdrop-filter: blur(10px);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px var(--lime);
}

.sonic-hero h1 {
  font-size: clamp(48px, 6.5vw, 92px);
  line-height: 0.92;
  margin: 20px 0;
  letter-spacing: -0.06em;
}

.sonic-gradient-text {
  background: linear-gradient(90deg, #ffffff, var(--lime) 45%, #dfff8a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sonic-lead {
  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.6;
}

.sonic-sublead {
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 10px;
  font-size: 0.95rem;
}

.sonic-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
  align-items: center;
}

.sonic-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.sonic-chip {
  border: 1px solid rgba(186, 255, 54, 0.2);
  background: rgba(186, 255, 54, 0.07);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  color: #dfff9d;
  font-weight: 800;
  font-size: 12px;
}

/* ORBITAL GRAPHIC */
.sonic-visual {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--sonic-line);
  border-radius: var(--radius-lg);
  padding: 34px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03));
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.sonic-visual::before {
  content: '';
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(186, 255, 54, 0.2), transparent 60%);
  right: -120px;
  top: -100px;
}

.sonic-orbit {
  position: relative;
  width: min(390px, 100%);
  aspect-ratio: 1;
  border-radius: 50%;
  margin: 16px auto;
  display: grid;
  place-items: center;
  background: conic-gradient(from 210deg, rgba(186,255,54,.2), rgba(40,240,163,.3), rgba(245,196,81,.2), rgba(186,255,54,.3), rgba(186,255,54,.2));
  box-shadow: inset 0 0 0 1px rgba(186,255,54,.18), 0 24px 60px rgba(0,0,0,.35);
}

.sonic-orbit::before {
  content: '';
  position: absolute;
  inset: 30px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

.sonic-orbit-core {
  position: relative;
  z-index: 2;
  width: 154px;
  height: 154px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  background: linear-gradient(135deg, #f5ffd7, var(--lime));
  color: #07130b;
  box-shadow: 0 20px 50px rgba(0,0,0,.35), 0 0 0 16px rgba(186,255,54,.12);
  font-size: 26px;
  font-weight: 950;
  letter-spacing: -0.05em;
  line-height: 1;
}

.sonic-node {
  position: absolute;
  z-index: 2;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(3,7,18,.82);
  backdrop-filter: blur(14px);
  border-radius: 16px;
  padding: 10px 14px;
  min-width: 110px;
  box-shadow: 0 18px 36px rgba(0,0,0,.3);
}

.sonic-node strong { display: block; font-size: 14px; color: #fff; }
.sonic-node small { color: rgba(255,255,255,.6); font-weight: 800; text-transform: uppercase; font-size: 10px; }
.sonic-node.one { top: 8%; left: 4%; }
.sonic-node.two { top: 16%; right: 4%; }
.sonic-node.three { bottom: 10%; left: 6%; }
.sonic-node.four { bottom: 8%; right: 2%; }

.sonic-mini-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  position: relative;
  z-index: 3;
}

.sonic-mini {
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 18px;
  padding: 16px;
  background: rgba(3,7,18,.6);
  text-align: center;
}

.sonic-mini strong { display: block; font-size: 16px; color: var(--lime); font-family: var(--font-mono); }
.sonic-mini small { color: rgba(255,255,255,.6); font-weight: 750; font-size: 11px; }

/* SECTIONS */
.sonic-section {
  padding: 70px 0;
}

.sonic-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 32px;
}

.sonic-section h2 {
  font-size: clamp(28px, 4vw, 50px);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin: 8px 0 0;
}

/* ADVANCED CALCULATOR (SONIC-RETURNS) */
.sonic-returns {
  position: relative;
  border: 2px solid rgba(186, 255, 54, 0.45);
  border-radius: 36px;
  padding: 44px;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(4, 13, 8, 0.92)), radial-gradient(circle at 20% 20%, rgba(186,255,54,.15), transparent 35%);
  box-shadow: 0 34px 90px rgba(0,0,0,.4), inset 0 0 0 1px rgba(255,255,255,.06);
  overflow: hidden;
}

.sonic-returns-head {
  text-align: center;
  margin-bottom: 36px;
}

.sonic-returns-head h2 {
  color: var(--lime);
  font-size: clamp(32px, 5vw, 62px);
  letter-spacing: -0.05em;
  margin: 10px 0;
}

.sonic-returns-head p {
  max-width: 800px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(15px, 1.8vw, 20px);
}

.sonic-return-panel {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
}

.sonic-return-controls {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 28px;
  padding: 28px;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(14px);
}

.sonic-return-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.sonic-return-mode {
  border: 1px solid var(--sonic-line);
  border-radius: 16px;
  padding: 12px 10px;
  color: rgba(255,255,255,.78);
  background: rgba(255,255,255,.05);
  cursor: pointer;
  font-weight: 900;
  transition: var(--transition);
  text-align: center;
}

.sonic-return-mode span { display: block; color: var(--lime); font-size: 22px; line-height: 1; }
.sonic-return-mode small { display: block; margin-top: 4px; font-weight: 750; color: rgba(255,255,255,.55); }

.sonic-return-mode.active {
  background: linear-gradient(135deg, var(--lime), var(--mint));
  color: #07130b;
  border-color: rgba(186,255,54,.7);
  box-shadow: 0 14px 34px var(--lime-glow);
  transform: translateY(-2px);
}

.sonic-return-mode.active span, .sonic-return-mode.active small { color: #07130b; }

.sonic-return-current {
  border-radius: 22px;
  padding: 24px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255,255,255,.1);
  margin-bottom: 22px;
  text-align: center;
}

.sonic-return-current small { display: block; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,.6); font-weight: 850; font-size: 11px; }
.sonic-return-current strong { display: block; color: #fff; font-size: clamp(30px, 4vw, 50px); font-family: var(--font-mono); margin: 6px 0 12px; }

.sonic-return-slider {
  width: 100%;
  accent-color: var(--lime);
  cursor: pointer;
  height: 6px;
}

.sonic-range-labels {
  display: flex;
  justify-content: space-between;
  color: rgba(255,255,255,.55);
  font-weight: 800;
  font-size: 11px;
  margin-top: 6px;
  font-family: var(--font-mono);
}

.sonic-return-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.sonic-return-card {
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 18px;
  background: rgba(0, 0, 0, 0.3);
}

.sonic-return-card small { display: block; color: rgba(255,255,255,.55); font-weight: 850; text-transform: uppercase; font-size: 10px; }
.sonic-return-card strong { display: block; margin-top: 4px; font-size: 22px; font-family: var(--font-mono); color: #fff; }

.sonic-return-card.net {
  background: linear-gradient(135deg, rgba(186, 255, 54, 0.18), rgba(40, 240, 163, 0.08));
  border-color: rgba(186, 255, 54, 0.4);
}
.sonic-return-card.net strong { color: var(--lime); }

.sonic-return-table-card {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 28px;
  padding: 28px;
  background: rgba(0,0,0,.35);
  overflow: hidden;
}

.sonic-return-table-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-end;
  margin-bottom: 16px;
}

.sonic-return-table-title h3 { margin: 0; font-size: clamp(22px, 3vw, 32px); letter-spacing: -0.04em; }
.sonic-return-table-title h3 span { color: var(--lime); }

.sonic-return-table-wrap {
  overflow-x: auto;
}

.sonic-return-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.sonic-landing-ar .sonic-return-table {
  text-align: right;
}

.sonic-return-table th {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.55);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 11px;
}

.sonic-return-table td {
  padding: 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-family: var(--font-mono);
}

.sonic-return-table tr {
  cursor: pointer;
  transition: background 0.15s ease;
}

.sonic-return-table tr:hover, .sonic-return-table tr.active {
  background: rgba(186, 255, 54, 0.12);
}

.sonic-return-note {
  margin-top: 24px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

/* 13-STEP INTERACTIVE SLIDER */
.sonic-slider-shell {
  border: 1px solid var(--sonic-line);
  border-radius: var(--radius-lg);
  padding: 40px;
  background: linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
}

.sonic-slider-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 28px;
}

.sonic-current-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(186, 255, 54, 0.1);
  color: var(--lime);
  font-weight: 900;
  font-size: 12px;
  border: 1px solid var(--sonic-line);
}

.sonic-slider-controls {
  display: flex;
  gap: 10px;
}

.sonic-slider-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--sonic-line);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.sonic-slider-btn:hover {
  background: var(--lime);
  color: #000;
  border-color: var(--lime);
}

.sonic-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  gap: 24px;
  scrollbar-width: none;
}

.sonic-slider::-webkit-scrollbar { display: none; }

.sonic-slide {
  flex: 0 0 100%;
  scroll-snap-align: start;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 10px;
}

.sonic-slide-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sonic-step-number {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--lime), var(--mint));
  color: #06110a;
  font-weight: 950;
  font-size: 22px;
  margin-bottom: 16px;
  box-shadow: 0 14px 30px var(--lime-glow);
}

.sonic-slide h3 {
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin: 0 0 12px;
}

.sonic-slide p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.6;
}

.sonic-slide ul {
  margin: 16px 0 0;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.sonic-landing-ar .sonic-slide ul {
  padding-left: 0;
  padding-right: 20px;
}

.sonic-pdf-visual {
  position: relative;
  min-height: 480px;
  border-radius: 24px;
  border: 1px solid var(--sonic-line);
  background: rgba(3, 7, 18, 0.85);
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: 14px;
  cursor: zoom-in;
}

.sonic-pdf-visual img {
  width: 100%;
  height: 100%;
  max-height: 490px;
  object-fit: contain;
  border-radius: 16px;
  transition: transform 0.28s ease, filter 0.28s ease;
}

.sonic-pdf-visual:hover img {
  transform: scale(1.02);
  filter: brightness(1.08);
}

.sonic-pdf-label {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(3,7,18,.85);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 11px;
  font-weight: 850;
  backdrop-filter: blur(10px);
}

.sonic-zoom-btn {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  border: 1px solid rgba(186,255,54,.5);
  background: linear-gradient(135deg, var(--lime), var(--mint));
  color: #06110a;
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-weight: 900;
  font-size: 12px;
  cursor: pointer;
  box-shadow: 0 10px 25px var(--lime-glow);
}

.sonic-step-tabs {
  display: grid;
  grid-template-columns: repeat(13, minmax(110px, 1fr));
  gap: 8px;
  overflow-x: auto;
  padding: 24px 4px 4px;
}

.sonic-step-tab {
  min-height: 74px;
  text-align: left;
  border: 1px solid rgba(186, 255, 54, 0.15);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  padding: 10px;
  cursor: pointer;
  transition: var(--transition);
}

.sonic-landing-ar .sonic-step-tab { text-align: right; }

.sonic-step-tab strong { display: block; color: var(--lime); font-size: 13px; margin-bottom: 2px; }
.sonic-step-tab span { display: block; font-size: 10px; line-height: 1.2; font-weight: 800; }

.sonic-step-tab.active {
  background: linear-gradient(135deg, rgba(186, 255, 54, 0.22), rgba(40, 240, 163, 0.1));
  border-color: rgba(186, 255, 54, 0.6);
  color: #fff;
  transform: translateY(-2px);
}

/* FLOW 4 PHASES */
.sonic-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.sonic-flow-card {
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 24px;
  padding: 24px;
  background: rgba(255,255,255,.05);
}

.sonic-flow-card span {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(186, 255, 54, 0.16);
  color: var(--lime);
  font-weight: 900;
  margin-bottom: 12px;
  font-family: var(--font-mono);
}

.sonic-flow-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.sonic-flow-card p { font-size: 0.88rem; color: rgba(255,255,255,.7); }

/* MODES */
.sonic-mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.sonic-mode-card {
  border-radius: 28px;
  padding: 32px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.05);
}

.sonic-mode-card.featured {
  background: linear-gradient(145deg, rgba(186, 255, 54, 0.18), rgba(40, 240, 163, 0.08));
  border-color: rgba(186, 255, 54, 0.4);
}

/* PROOF & METRICS */
.sonic-proof-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
}

.sonic-card {
  border: 1px solid var(--sonic-line);
  border-radius: 28px;
  padding: 32px;
  background: linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
}

.sonic-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.sonic-stat {
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 16px;
  background: rgba(255,255,255,.05);
}

.sonic-stat strong { display: block; font-size: 22px; font-family: var(--font-mono); color: var(--lime); }
.sonic-stat small { color: rgba(255,255,255,.55); font-weight: 800; font-size: 10px; text-transform: uppercase; }

/* FORMS */
.sonic-form-input {
  width: 100%;
  padding: 13px 16px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

.sonic-form-input:focus {
  outline: none;
  border-color: var(--lime);
  box-shadow: 0 0 0 3px var(--lime-glow);
}

/* LIGHTBOX ZOOM */
.sonic-zoom-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(14px);
}

.sonic-zoom-overlay.active { display: flex; }

.sonic-zoom-frame {
  position: relative;
  width: min(94vw, 1500px);
  max-height: 90vh;
  border-radius: 20px;
  padding: 14px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--sonic-line);
  box-shadow: 0 30px 90px rgba(0,0,0,.6);
}

.sonic-zoom-frame img {
  display: block;
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 14px;
  background: #050816;
}

.sonic-zoom-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--sonic-line);
  background: #fff;
  color: #050816;
  font-size: 28px;
  line-height: 1;
  font-weight: 900;
  cursor: pointer;
}

.sonic-zoom-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 13px;
}

/* FOOTER */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--sonic-line);
  padding: 40px 0;
  background: rgba(4, 7, 17, 0.95);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.disclaimer-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
}

/* RESPONSIVE */
@media (max-width: 980px) {
  .sonic-hero, .sonic-proof-grid, .sonic-slide, .sonic-mode-grid, .sonic-return-panel { grid-template-columns: 1fr; }
  .sonic-metrics, .sonic-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .sonic-hero h1 { font-size: 2.4rem; }
  .header-nav { display: none; }
  .sonic-flow, .sonic-metrics { grid-template-columns: 1fr; }
  .sonic-step-tabs { grid-template-columns: repeat(13, minmax(90px, 1fr)); }
  .sonic-return-cards { grid-template-columns: 1fr; }
}