/* ================================================
   ADSENSEI — Unified Production Stylesheet
   ================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
  /* Premium Light Theme — Enhanced Layered Depth Configuration */
  --bg: #f4f7ff;
  --bg-alt: #ecf0fe;

  /* Semi-transparent surface acrylic pass */
  --surface: rgba(255, 255, 255, 0.55);
  --surface-solid: #ffffff;
  --surface-2: #f0f4ff;

  /* Double-line border physics (Uses a crisp base border) */
  --border: rgba(37, 51, 255, 0.05);
  --border-hover: rgba(37, 51, 255, 0.22);

  --text: #080c26;
  --text-2: #434a6b;
  --text-3: #838db8;

  --accent: #2533FF;
  --accent-2: #4f46e5;
  --accent-rgb: 37, 51, 255;
  --green: #10b981;

  /* DEEP MULTI-PASS SHADOW ENGINE: 
     Instead of one heavy shadow line which looks muddy, this uses an intense 
     micro-shadow close to the card edge, combined with a highly dispersed, 
     soft blue ambient drop-shadow further out.
  */
  --card-shadow:
    0 2px 4px rgba(8, 12, 38, 0.015),
    0 8px 20px rgba(37, 51, 255, 0.03),
    0 24px 48px rgba(37, 51, 255, 0.05);

  /* Hover State Lift: Amplifies the displacement space completely */
  --card-shadow-hover:
    0 4px 8px rgba(8, 12, 38, 0.02),
    0 20px 32px rgba(37, 51, 255, 0.06),
    0 52px 84px rgba(37, 51, 255, 0.14);

  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  /* Swapped to standard easeOutExpo physics for smoother card lifts */

  --blob1-color: rgba(61, 92, 255, 0.14);
  --blob2-color: rgba(59, 130, 246, 0.09);
  --blob3-color: rgba(147, 197, 253, 0.08);
  --blob4-color: rgba(219, 234, 254, 0.06);
  --blur-surface: blur(20px);
  /* Increased from 14px to maximize the premium frosted acrylic illusion */
}

[data-theme="dark"] {
  /* Restored Original Dark Theme Coordinates */
  --bg: #0c0b09;
  --bg-alt: #131209;
  --surface: rgba(28, 26, 18, 0.75);
  --surface-solid: #1c1a12;
  --surface-2: #232115;
  --border: rgba(212, 175, 55, 0.12);
  --border-hover: rgba(212, 175, 55, 0.30);
  --text: #f5f4f1;
  --text-2: #b0a880;
  --text-3: #6e6840;
  --accent: #f0b429;
  --accent-2: #e07c00;
  --accent-rgb: 240, 180, 41;
  --green: #4ade80;
  --card-shadow: 0 1px 4px rgba(0, 0, 0, 0.4), 0 8px 28px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 4px 12px rgba(212, 175, 55, 0.15), 0 20px 50px rgba(0, 0, 0, 0.4);
  --blob1-color: rgba(212, 175, 55, 0.13);
  --blob2-color: rgba(180, 140, 20, 0.10);
  --blob3-color: rgba(240, 180, 40, 0.09);
  --blob4-color: rgba(150, 100, 10, 0.11);
  --blur-surface: blur(12px);
}

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

body {
  /* Enforced Inter font family globally */
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

em {
  font-style: italic;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── UNIFIED BRAND HEADINGS (Inter) ── */
.hero-title,
.ach-num,
.section-header h2,
.card h3,
.deck-card-name,
.why-body h3,
.why-num {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Brand Assets & Logo Sizing System */
.logo-img {
  height: 52px;
  width: auto;
  display: block;
  object-fit: contain;
  mix-blend-mode: multiply; /* dissolves white/grey PNG backgrounds in light mode */
}

.footer-logo {
  height: 42px;
  width: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 50px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 2px 10px rgba(37, 51, 255, 0.03);
}

[data-theme="dark"] .logo-img {
  mix-blend-mode: normal; /* override multiply – dark mode uses filter instead */
  filter: brightness(0) invert(1) drop-shadow(0 0 2px rgba(212, 175, 55, 0.2));
}

[data-theme="dark"] .nav-logo {
  background: rgba(28, 26, 18, 0.4);
  border-color: rgba(212, 175, 55, 0.1);
  box-shadow: none;
  padding: 8px 20px;
}

/* ================================================
   DYNAMIC INTERACTIVE BACKGROUND SYSTEM
   ================================================ */
#interactiveBg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

#scrollGradient {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#gridCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  will-change: transform;
}

#blob1 {
  width: 640px;
  height: 640px;
  background: var(--blob1-color);
  top: -160px;
  left: -180px;
}

#blob2 {
  width: 520px;
  height: 520px;
  background: var(--blob2-color);
  top: 20%;
  right: -140px;
}

#blob3 {
  width: 460px;
  height: 460px;
  background: var(--blob3-color);
  top: 60%;
  left: 8%;
}

#blob4 {
  width: 400px;
  height: 400px;
  background: var(--blob4-color);
  top: 80%;
  right: 6%;
}

[data-theme="dark"] #interactiveBg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-52deg,
      transparent 0px, transparent 80px,
      rgba(212, 175, 55, 0.025) 80px, rgba(212, 175, 55, 0.025) 82px,
      transparent 82px, transparent 160px);
  pointer-events: none;
}

.edge-blur {
  position: fixed;
  left: 0;
  right: 0;
  height: 120px;
  z-index: 45;
  pointer-events: none;
}

.edge-blur-top {
  top: 0;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
}

.edge-blur-bottom {
  bottom: 0;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  mask-image: linear-gradient(to top, black 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, black 0%, transparent 100%);
}

#themeToggle {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1000;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
  color: var(--text);
}

#themeToggle:hover {
  transform: scale(1.05);
}

[data-theme="light"] .icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}

/* ================================================
   HERO STRUCTURAL COMPONENT
   ================================================ */
#hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  text-align: center;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: var(--blur-surface);
  -webkit-backdrop-filter: var(--blur-surface);
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 28px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  box-shadow: var(--card-shadow);
  animation: popIn .7s ease both;
}

.badge-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1)
  }

  50% {
    opacity: .5;
    transform: scale(.85)
  }
}

.hero-title {
  font-size: clamp(42px, 7.5vw, 84px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  /* Optimized letter spacing for large Inter headers */
  margin-bottom: 24px;
  color: var(--text);
  animation: popIn .7s .1s ease both;
}

.hero-title em {
  font-style: italic;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent) 30%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero-title em {
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: popIn .7s .2s ease both;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 64px;
  animation: popIn .7s .3s ease both;
}

.btn-fill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  border: none;
  cursor: pointer;
  padding: 15px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn-fill:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .15);
}

.achievements-row {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: var(--blur-surface);
  -webkit-backdrop-filter: var(--blur-surface);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--card-shadow);
  animation: popIn .7s .4s ease both;
}

.ach-item {
  text-align: center;
  flex: 1;
  padding: 0 12px;
}

.ach-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.ach-unit {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}

.ach-label {
  display: block;
  font-size: 11px;
  color: var(--text-3);
  margin-top: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.ach-sep {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

@=================================================NAVIGATION MATRIX================================================*/ #navCards {
  position: relative;
  z-index: 10;
  padding: 0 24px 80px;
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.nav-card-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.nav-card {
  display: grid;
  grid-template-areas: "icon arrow" "title title" "desc desc";
  grid-template-columns: 1fr auto;
  gap: 4px 0;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: var(--blur-surface);
  -webkit-backdrop-filter: var(--blur-surface);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
}

.nav-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-hover);
  background: var(--surface-solid);
}

.nc-icon {
  grid-area: icon;
  font-size: 18px;
  color: var(--accent);
}

.nc-arrow {
  grid-area: arrow;
  font-size: 15px;
  color: var(--text-3);
  transition: transform var(--transition);
}

.nav-card:hover .nc-arrow {
  transform: translate(3px, -3px);
  color: var(--accent);
}

.nc-title {
  grid-area: title;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-top: 12px;
}

.nc-desc {
  grid-area: desc;
  font-size: 12px;
  color: var(--text-3);
  font-weight: 500;
}

/* ================================================
   SERVICE GRID ARCHITECTURE (FAN LAYOUT)
   ================================================ */
.content-section {
  position: relative;
  z-index: 1;
  padding: 120px 0;
}

.alt-bg {
  /* Transparent so the fixed animated background shows through;
     a very subtle tint just barely differentiates the section */
  background: rgba(220, 228, 255, 0.08);
  position: relative;
  z-index: 1;
}

[data-theme="dark"] .alt-bg {
  background: rgba(25, 23, 10, 0.08);
}

.section-header {
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 16px 0;
  color: var(--text);
}

.section-header h2 em {
  color: var(--accent);
  font-style: normal;
}

.section-header p {
  font-size: 16px;
  color: var(--text-2);
  max-width: 540px;
}

.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(var(--accent-rgb), .06);
  padding: 6px 14px;
  border-radius: 50px;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s calc(var(--d, 0ms)) ease-out, transform .6s calc(var(--d, 0ms)) ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.arc-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0 100px;
  overflow: visible;
  position: relative;
}

.card-arc-wrap {
  flex: 0 0 auto;
  width: 185px;
  transform-origin: bottom center;
}

.arc-grid .card-arc-wrap:nth-child(1) {
  transform: rotate(-10deg) translateY(70px);
}

.arc-grid .card-arc-wrap:nth-child(2) {
  transform: rotate(-5deg) translateY(30px);
}

.arc-grid .card-arc-wrap:nth-child(3) {
  transform: rotate(-1.5deg) translateY(8px);
}

.arc-grid .card-arc-wrap:nth-child(4) {
  transform: rotate(1.5deg) translateY(8px);
}

.arc-grid .card-arc-wrap:nth-child(5) {
  transform: rotate(5deg) translateY(30px);
}

.arc-grid .card-arc-wrap:nth-child(6) {
  transform: rotate(10deg) translateY(70px);
}

.card-arc-wrap:hover {
  z-index: 20;
}

.card,
.nav-card,
.achievements-row {
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
}

.card {
  height: 250px;
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: var(--blur-surface);
  -webkit-backdrop-filter: var(--blur-surface);
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--card-shadow);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
}

.card-arc-wrap:hover .card {
  transform: scale(1.15) translateY(-14px);
  box-shadow: 0 24px 50px rgba(var(--accent-rgb), .12);
  border-color: rgba(var(--accent-rgb), .25);
  background: var(--surface-solid);
}

.card-arc-wrap:hover .card,
.nav-card:hover {
  transform: scale(1.04) translateY(-10px);
  background: var(--surface-solid);
  border-color: var(--border-hover);
}

.card-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(var(--accent-rgb), .06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.card-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.card-bullets li {
  font-size: 13px;
  color: var(--text-2);
  padding-left: 12px;
  position: relative;
}

.card-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

/* ================================================
   INTERACTIVE AUDIENCE DECK SYSTEM
   ================================================ */
.deck-scene {
  position: relative;
  width: 100%;
  margin-top: 20px;
}

.deck-stack {
  position: relative;
  width: min(400px, 100%);
  height: 320px;
  margin: 0 auto;
  cursor: pointer;
}

.deck-card {
  position: absolute;
  width: 100%;
  height: 200px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform .45s cubic-bezier(0.25, 1, 0.5, 1), opacity .35s ease;
}

.deck-card[data-i="6"] {
  top: 0px;
  z-index: 1;
  transform: scale(0.9);
  opacity: 0.4;
}

.deck-card[data-i="5"] {
  top: 15px;
  z-index: 2;
  transform: scale(0.92);
  opacity: 0.55;
}

.deck-card[data-i="4"] {
  top: 30px;
  z-index: 3;
  transform: scale(0.94);
  opacity: 0.7;
}

.deck-card[data-i="3"] {
  top: 45px;
  z-index: 4;
  transform: scale(0.96);
  opacity: 0.85;
}

.deck-card[data-i="2"] {
  top: 60px;
  z-index: 5;
  transform: scale(0.98);
  opacity: 0.95;
}

.deck-card[data-i="1"] {
  top: 75px;
  z-index: 6;
  transform: scale(1);
  opacity: 1;
}

.deck-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.deck-emoji {
  font-size: 22px;
  flex-shrink: 0;
}

.deck-card-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.deck-card-body {
  padding: 18px 20px;
  font-size: 14px;
  color: var(--text-2);
}

.deck-stack:hover .deck-card[data-i="1"] {
  transform: translateY(6px);
}

.deck-stack.is-expanding .deck-card {
  opacity: 0;
  transform: scale(0.8) translateY(-40px);
}

.deck-hint {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .5px;
}

.deck-spread {
  display: none;
  overflow: hidden;
  position: relative;
  padding: 20px 0;
}

.deck-spread.active {
  display: block;
  animation: fadeInUp .4s ease forwards;
}

.deck-stack.hidden {
  display: none;
}

@keyframes marquee {
  from {
    transform: translateX(0)
  }

  to {
    transform: translateX(-50%)
  }
}

.spread-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: marquee 24s linear infinite;
}

.spread-track:hover {
  animation-play-state: paused;
}

.spread-card {
  flex: 0 0 310px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.spread-hint {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
}

/* ================================================
   BENEFITS, CONTACT & FOOTER
   ================================================ */
.why-layout {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.why-feature {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
}

.why-feature:first-child {
  padding-top: 0;
}

.why-feature:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.why-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  min-width: 28px;
  padding-top: 2px;
}

.why-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  letter-spacing: -0.3px;
}

.why-body p {
  font-size: 15px;
  color: var(--text-2);
  max-width: 640px;
}

.contact-solo {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 520px;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cd-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-3);
}

.cd-val {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

.cd-val:hover {
  color: var(--accent);
}

.social-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}

.social-pill:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--surface-solid);
  transform: translateY(-1px);
}

.social-wa:hover {
  border-color: #16a34a;
  color: #16a34a;
}

.social-tg:hover {
  border-color: #229ED9;
  color: #229ED9;
}

/* Hero Logo */
.hero-logo-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0;
  animation: popIn .7s .3s ease both;
}

.hero-logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  /* Depth: layered drop-shadows give a lifted, dimensional feel */
  filter:
    drop-shadow(0 2px 6px rgba(37, 51, 255, 0.10))
    drop-shadow(0 8px 24px rgba(37, 51, 255, 0.12))
    drop-shadow(0 20px 48px rgba(37, 51, 255, 0.08));
  transition: filter 0.4s ease, transform 0.4s ease;
}

.hero-logo-img--large {
  height: 130px;
}

.hero-logo-img:hover {
  filter:
    drop-shadow(0 4px 10px rgba(37, 51, 255, 0.18))
    drop-shadow(0 16px 36px rgba(37, 51, 255, 0.20))
    drop-shadow(0 32px 64px rgba(37, 51, 255, 0.12));
  transform: translateY(-3px);
}

[data-theme="dark"] .hero-logo-img {
  mix-blend-mode: normal;
  filter:
    brightness(0) invert(1)
    drop-shadow(0 2px 8px rgba(212, 175, 55, 0.25))
    drop-shadow(0 12px 32px rgba(212, 175, 55, 0.20))
    drop-shadow(0 24px 56px rgba(212, 175, 55, 0.12));
}

[data-theme="dark"] .hero-logo-img:hover {
  filter:
    brightness(0) invert(1)
    drop-shadow(0 4px 12px rgba(212, 175, 55, 0.40))
    drop-shadow(0 16px 40px rgba(212, 175, 55, 0.30))
    drop-shadow(0 32px 72px rgba(212, 175, 55, 0.20));
}

#footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 40px;
  background: var(--bg);
}

/* Footer logo large variant with depth */
.footer-logo--large {
  height: 72px !important;
  filter:
    drop-shadow(0 2px 5px rgba(37, 51, 255, 0.10))
    drop-shadow(0 8px 20px rgba(37, 51, 255, 0.10));
  transition: filter 0.4s ease, transform 0.4s ease;
}

.footer-logo--large:hover {
  filter:
    drop-shadow(0 4px 10px rgba(37, 51, 255, 0.18))
    drop-shadow(0 16px 36px rgba(37, 51, 255, 0.18));
  transform: translateY(-2px);
}

[data-theme="dark"] .footer-logo--large {
  filter:
    brightness(0) invert(1)
    drop-shadow(0 2px 8px rgba(212, 175, 55, 0.30))
    drop-shadow(0 12px 32px rgba(212, 175, 55, 0.20));
}

/* Contact CTA Block — Telegram */
.contact-cta-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-tg-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #229ED9 0%, #1a7fb5 100%);
  color: #fff;
  text-decoration: none;
  padding: 16px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.1px;
  box-shadow:
    0 4px 14px rgba(34, 158, 217, 0.35),
    0 1px 3px rgba(34, 158, 217, 0.20);
  transition: transform 0.35s cubic-bezier(0.16,1,0.3,1),
              box-shadow 0.35s cubic-bezier(0.16,1,0.3,1),
              background 0.35s ease;
  width: fit-content;
}

.contact-tg-btn:hover {
  background: linear-gradient(135deg, #1a8ec4 0%, #146b9a 100%);
  transform: translateY(-3px);
  box-shadow:
    0 8px 28px rgba(34, 158, 217, 0.45),
    0 2px 6px rgba(34, 158, 217, 0.25);
}

.tg-btn-arrow {
  margin-left: auto;
  font-size: 18px;
  transition: transform 0.3s ease;
}

.contact-tg-btn:hover .tg-btn-arrow {
  transform: translateX(4px);
}

[data-theme="dark"] .contact-tg-btn {
  background: linear-gradient(135deg, #1a8ec4 0%, #0f5c82 100%);
  box-shadow:
    0 4px 16px rgba(34, 158, 217, 0.30),
    0 0 0 1px rgba(34, 158, 217, 0.15);
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-3);
}

.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-3);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

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

.footer-copy {
  font-size: 12px;
  color: var(--text-3);
}

/* ================================================
   RESPONSIVE DESIGN ADAPTATION MEDIA ENGINES
   ================================================ */
@media (max-width:1024px) {
  .nav-card-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .arc-grid {
    gap: 12px;
  }

  .card-arc-wrap {
    width: 160px;
  }

  .card {
    height: 270px;
  }
}

@media (max-width:768px) {
  .hero-title {
    letter-spacing: -1px;
  }

  .content-section {
    padding: 80px 0;
  }

  .achievements-row {
    flex-direction: column;
    gap: 20px;
    padding: 24px;
  }

  .ach-sep {
    width: 48px;
    height: 1px;
  }

  .why-feature {
    flex-direction: column;
    gap: 8px;
    padding: 28px 0;
  }

  .arc-grid {
    flex-wrap: wrap;
    padding-bottom: 0;
    gap: 12px;
  }

  .card-arc-wrap {
    flex: 0 0 calc(50% - 6px);
    width: calc(50% - 6px);
    transform: none !important;
  }

  .card {
    height: auto;
    min-height: 180px;
  }

  .card-arc-wrap:hover .card {
    transform: translateY(-4px) !important;
  }

  .deck-stack {
    height: 260px;
  }

  .deck-card {
    height: 180px;
  }

  .deck-card[data-i="6"] {
    top: 0px;
  }

  .deck-card[data-i="5"] {
    top: 10px;
  }

  .deck-card[data-i="4"] {
    top: 20px;
  }

  .deck-card[data-i="3"] {
    top: 30px;
  }

  .deck-card[data-i="2"] {
    top: 40px;
  }

  .deck-card[data-i="1"] {
    top: 50px;
  }
}

@media (max-width:480px) {
  .container {
    padding: 0 16px;
  }

  #navCards {
    padding: 0 16px 64px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-fill {
    justify-content: center;
  }

  .nav-card-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .card-arc-wrap {
    flex: 0 0 100%;
    width: 100%;
  }
}