/* Sauber Thailand Co., Ltd. — sauberth.com */
/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TOKENS */
:root {
  --ink:       #1a0a12;
  --ink-2:     #3d1a2e;
  --ink-3:     #8b5a74;
  --ink-4:     #c497b0;
  --paper:     #ffffff;
  --paper-2:   #fdf5f9;
  --paper-3:   #fce7f3;
  --pink:      #db2777;
  --pink-lt:   #fdf2f8;
  --pink-mid:  #fbcfe8;
  --fuchsia:   #a21caf;
  --fuchsia-lt:#fdf4ff;
  --border:    rgba(219,39,119,.09);
  --border-2:  rgba(219,39,119,.18);
  --shadow-sm: 0 1px 3px rgba(26,10,18,.07), 0 1px 2px rgba(26,10,18,.04);
  --shadow-md: 0 4px 16px rgba(219,39,119,.08), 0 2px 6px rgba(26,10,18,.05);
  --shadow-lg: 0 20px 60px rgba(219,39,119,.1), 0 4px 16px rgba(26,10,18,.06);
  --shadow-xl: 0 32px 80px rgba(219,39,119,.12), 0 8px 24px rgba(26,10,18,.08);
  --font-disp: 'Fraunces', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', 'Noto Sans Thai', 'Noto Sans SC', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --radius:    12px;
  --radius-lg: 20px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CANVAS */
#nc {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; opacity: .55;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 68px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-logo {
  font-family: var(--font-disp);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  display: flex; align-items: center; gap: 8px;
  letter-spacing: -.01em;
}
.logo-dot {
  width: 8px; height: 8px;
  background: var(--pink);
  border-radius: 50%;
  animation: pulse-pink 2.4s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse-pink {
  0%,100% { box-shadow: 0 0 0 0 rgba(219,39,119,.4); transform: scale(1); }
  50% { box-shadow: 0 0 0 6px rgba(219,39,119,0); transform: scale(1.15); }
}

.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--ink-3);
  text-decoration: none;
  transition: color .2s;
  letter-spacing: .01em;
}
.nav-links a:hover { color: var(--pink); }

.nav-right { display: flex; align-items: center; gap: 14px; }

/* ── LANGUAGE SWITCHER ── */
.lang-sw { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 6px;
  background: var(--paper-2);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 7px 13px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: all .2s;
}
.lang-btn:hover { background: var(--pink-lt); border-color: var(--pink-mid); color: var(--pink); }
.lang-arrow { font-size: .6rem; transition: transform .2s; }
.lang-sw.open .lang-arrow { transform: rotate(180deg); }

.lang-drop {
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--paper);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  min-width: 175px;
  overflow: hidden;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: all .22s cubic-bezier(.16,1,.3,1);
  z-index: 200;
}
.lang-sw.open .lang-drop { opacity: 1; visibility: visible; transform: none; }
.lang-drop { min-width: 215px; max-height: min(72vh, 560px); overflow-y: auto; overscroll-behavior: contain; }
.lang-drop::-webkit-scrollbar { width: 5px; }
.lang-drop::-webkit-scrollbar-thumb { background: var(--pink-mid); border-radius: 3px; }

.lang-opt {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 16px;
  cursor: pointer;
  transition: background .15s;
  border-bottom: 1px solid var(--border);
}
.lang-opt:last-child { border-bottom: none; }
.lang-opt:hover { background: var(--paper-2); }
.lang-opt.active { background: var(--pink-lt); }
.lo-flag { font-size: 1.1rem; line-height: 1; }
.lo-name { font-size: .8rem; font-weight: 600; color: var(--ink); }
.lo-native { font-size: .72rem; color: var(--ink-3); }
.lang-opt.active .lo-name { color: var(--pink); }
.lo-check { margin-left: auto; color: var(--pink); font-size: .8rem; opacity: 0; }
.lang-opt.active .lo-check { opacity: 1; }

.nav-cta {
  font-size: .85rem;
  font-weight: 700;
  color: var(--paper);
  background: var(--pink);
  padding: 10px 22px;
  border-radius: 8px;
  text-decoration: none;
  transition: background .2s, box-shadow .2s, transform .15s;
  letter-spacing: .01em;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(219,39,119,.35);
}
.nav-cta:hover { background: #be185d; box-shadow: 0 6px 20px rgba(219,39,119,.4); transform: translateY(-1px); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ HERO */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative; z-index: 1;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(219,39,119,.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 60%, rgba(162,28,175,.06) 0%, transparent 50%),
    var(--paper);
}

.hero-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--pink-lt);
  border: 1px solid var(--pink-mid);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--pink);
  letter-spacing: .03em;
  margin-bottom: 36px;
  opacity: 0;
  animation: rise .7s .1s forwards;
}
.pill-dot {
  width: 6px; height: 6px;
  background: var(--pink);
  border-radius: 50%;
  animation: pulse-pink 1.5s infinite;
}

.hero-title {
  font-family: var(--font-disp);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -.03em;
  color: var(--ink);
  margin-bottom: 8px;
  opacity: 0;
  animation: rise .8s .25s forwards;
}
.hero-title .t-grad {
  background: linear-gradient(135deg, var(--pink) 0%, var(--fuchsia) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-sub-wrap {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 400;
  color: var(--ink-3);
  max-width: 580px;
  margin: 28px auto 0;
  min-height: 2.5em;
  line-height: 1.6;
  opacity: 0;
  animation: rise .8s .4s forwards;
}
.typed-cursor {
  display: inline-block;
  width: 2px; height: 1.1em;
  background: var(--pink);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink .75s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap; justify-content: center;
  margin-top: 48px;
  opacity: 0;
  animation: rise .8s .55s forwards;
}
.btn-filled {
  font-size: .95rem; font-weight: 700;
  color: var(--paper);
  background: var(--pink);
  padding: 15px 36px; border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(219,39,119,.35);
  transition: all .2s;
  letter-spacing: .01em;
}
.btn-filled:hover { background: #be185d; box-shadow: 0 8px 28px rgba(219,39,119,.45); transform: translateY(-2px); }
.btn-ghost {
  font-size: .95rem; font-weight: 600;
  color: var(--ink-2);
  background: var(--paper);
  border: 1.5px solid var(--border-2);
  padding: 15px 36px; border-radius: 10px;
  text-decoration: none;
  transition: all .2s;
}
.btn-ghost:hover { border-color: var(--pink); color: var(--pink); background: var(--pink-lt); }

.scroll-hint {
  position: absolute; bottom: 44px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 0; animation: rise .7s 1s forwards;
}
.scroll-bar {
  width: 1px; height: 52px;
  background: linear-gradient(to bottom, var(--pink), transparent);
  animation: scroll-anim 2s ease-in-out infinite;
}
@keyframes scroll-anim { 0%,100%{opacity:.4;transform:scaleY(1)} 50%{opacity:1;transform:scaleY(.6)} }
.scroll-txt {
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .18em;
  color: var(--ink-4); writing-mode: vertical-rl;
}

@keyframes rise { from{opacity:0;transform:translateY(22px)} to{opacity:1;transform:translateY(0)} }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ STATS */
.stats-strip {
  position: relative; z-index: 1;
  background: var(--paper);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 1160px; margin: 0 auto;
  display: flex; justify-content: stretch;
}
.stat-item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center;
  padding: 36px 20px;
  border-right: 1px solid var(--border);
  position: relative; overflow: hidden;
  transition: background .25s;
}
.stat-item:last-child { border-right: none; }
.stat-item::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--pink), transparent);
  transform: scaleX(0); transition: transform .4s;
}
.stat-item:hover { background: var(--paper-2); }
.stat-item:hover::after { transform: scaleX(1); }
.stat-num {
  font-family: var(--font-disp);
  font-size: 2.4rem; font-weight: 700;
  color: var(--pink); line-height: 1;
}
.stat-lbl {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-3);
  margin-top: 6px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECTION COMMONS */
section { padding: 112px 24px; position: relative; z-index: 1; }
.container { max-width: 1160px; margin: 0 auto; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--pink);
  margin-bottom: 18px;
}
.eyebrow::before { content: ''; width: 28px; height: 1.5px; background: var(--pink); }

.sec-h {
  font-family: var(--font-disp);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700; letter-spacing: -.025em; line-height: 1.1;
  color: var(--ink); margin-bottom: 18px;
}
.sec-h .hi { color: var(--pink); }
.sec-p {
  font-size: 1.05rem; font-weight: 400;
  color: var(--ink-3); line-height: 1.8;
  max-width: 500px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ABOUT */
#about { background: var(--paper-2); }

.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 88px; align-items: center;
}

/* AI Visual */
.about-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.ai-frame {
  position: relative; width: 340px; height: 340px;
  display: flex; align-items: center; justify-content: center;
}
.ai-ring {
  position: absolute; border-radius: 50%; border: 1.5px solid;
  animation: spin-ring linear infinite;
}
.ring-1 { inset:0; border-color: rgba(219,39,119,.18); animation-duration: 22s; }
.ring-2 { inset: 28px; border-color: rgba(162,28,175,.12); animation-duration: 16s; animation-direction: reverse; border-style: dashed; }
.ring-3 { inset: 56px; border-color: rgba(219,39,119,.1); animation-duration: 30s; }
.ai-ring::after {
  content: '';
  position: absolute; width: 7px; height: 7px; border-radius: 50%;
  background: var(--pink); top: 50%; left: -3.5px;
  transform: translateY(-50%);
  box-shadow: 0 0 10px rgba(219,39,119,.6);
}
.ring-2::after { background: var(--fuchsia); box-shadow: 0 0 10px rgba(162,28,175,.5); }
@keyframes spin-ring { to { transform: rotate(360deg); } }

.ai-core {
  position: relative; z-index: 2;
  width: 156px; height: 156px;
  background: var(--paper);
  border: 1.5px solid var(--border-2);
  border-radius: 24px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transform: rotate(10deg);
}
.ai-core::before {
  content: '';
  position: absolute; inset: -1px; border-radius: 25px;
  background: linear-gradient(135deg, rgba(219,39,119,.3), transparent 60%);
  z-index: -1;
}
.core-lbl { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .2em; color: var(--pink); font-weight: 500; }
.core-val { font-family: var(--font-disp); font-size: 1.8rem; font-weight: 700; color: var(--ink); margin: 2px 0; }
.core-sub { font-family: var(--font-mono); font-size: .58rem; color: var(--ink-3); letter-spacing: .12em; }

.dp {
  position: absolute;
  background: var(--paper);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 10px 14px;
  box-shadow: var(--shadow-md);
  animation: float-dp 4s ease-in-out infinite alternate;
}
.dp-lbl { font-family: var(--font-mono); font-size: .6rem; color: var(--ink-4); display: block; margin-bottom: 2px; letter-spacing: .08em; text-transform: uppercase; }
.dp-val { font-family: var(--font-disp); font-size: .95rem; font-weight: 600; color: var(--ink); }
.dp-val .unit { font-size: .7rem; font-weight: 400; color: var(--pink); margin-left: 2px; }
@keyframes float-dp { from{transform:translateY(0)} to{transform:translateY(-10px)} }

/* Feature list */
.feat-list { list-style: none; margin-top: 40px; }
.feat-item {
  display: flex; gap: 18px; padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.feat-item:first-child { border-top: 1px solid var(--border); }
.fi-ico {
  width: 42px; height: 42px; flex-shrink: 0;
  background: var(--pink-lt); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem; margin-top: 2px;
}
.fi-h { font-size: .95rem; font-weight: 700; color: var(--ink); margin-bottom: 2px; }
.fi-b { font-size: .88rem; color: var(--ink-3); line-height: 1.65; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SOLUTIONS */
#solutions { background: var(--paper); }

.sol-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 56px; flex-wrap: wrap; gap: 24px;
}
.sol-count {
  font-family: var(--font-mono);
  font-size: .75rem; color: var(--ink-3); letter-spacing: .06em;
}
.sol-count span { color: var(--pink); font-weight: 600; }

.sol-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 20px;
}
.sol-card {
  background: var(--paper);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  cursor: default;
  transition: border-color .3s, box-shadow .3s, transform .25s;
  position: relative; overflow: hidden;
}
.sol-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--pink), var(--fuchsia));
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s;
}
.sol-card:hover {
  border-color: rgba(219,39,119,.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.sol-card:hover::before { transform: scaleX(1); }

.sol-num {
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .18em;
  color: var(--ink-4); margin-bottom: 22px;
}
.sol-ico {
  width: 52px; height: 52px;
  background: var(--paper-2);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
  transition: background .3s, border-color .3s;
}
.sol-card:hover .sol-ico { background: var(--pink-lt); border-color: var(--pink-mid); }
.sol-title {
  font-family: var(--font-disp);
  font-size: 1.05rem; font-weight: 600;
  line-height: 1.35; color: var(--ink); margin-bottom: 12px;
}
.sol-desc { font-size: .875rem; color: var(--ink-3); line-height: 1.75; }
.sol-tags {
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-top: 24px;
}
.sol-tag {
  font-family: var(--font-mono);
  font-size: .6rem; letter-spacing: .06em;
  color: var(--pink);
  background: var(--pink-lt);
  border: 1px solid var(--pink-mid);
  padding: 3px 10px; border-radius: 4px;
  text-transform: uppercase;
}

/* Wide card (sol 07) */
.sol-card.wide { grid-column: 1 / -1; }
.sol-card.wide .wide-inner { display: flex; gap: 32px; align-items: flex-start; flex-wrap: wrap; }
.sol-card.wide .wide-text { flex: 1; min-width: 220px; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CAPABILITIES */
.cap-section { background: var(--paper-2); }

.cap-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 80px; align-items: start; }

.cap-bars { display: flex; flex-direction: column; gap: 22px; margin-top: 36px; }
.cap-bar-item { }
.cap-bar-hd { display: flex; justify-content: space-between; margin-bottom: 7px; }
.cap-bar-name { font-size: .85rem; font-weight: 500; color: var(--ink-2); }
.cap-bar-pct { font-family: var(--font-mono); font-size: .78rem; color: var(--pink); font-weight: 600; }
.cap-bar-track { height: 4px; background: var(--paper-3); border-radius: 2px; overflow: hidden; }
.cap-bar-fill {
  height: 100%; border-radius: 2px;
  background: linear-gradient(90deg, var(--pink), var(--fuchsia));
  width: 0; transition: width 1.4s cubic-bezier(.16,1,.3,1);
}

.tech-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-top: 32px; }
.tech-chip {
  background: var(--paper); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 18px 12px;
  text-align: center; transition: all .25s;
}
.tech-chip:hover { border-color: var(--pink-mid); background: var(--pink-lt); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.tech-ico { font-size: 1.6rem; display: block; margin-bottom: 8px; }
.tech-name { font-family: var(--font-mono); font-size: .65rem; letter-spacing: .08em; color: var(--ink-3); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ CONTACT */
#contact {
  background: var(--paper);
  background-image:
    radial-gradient(ellipse 70% 50% at 0% 100%, rgba(219,39,119,.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 100% 0%, rgba(162,28,175,.04) 0%, transparent 50%);
}
.contact-card {
  position: relative; overflow: hidden;
  margin-top: 8px;
  padding: 56px 56px 52px;
  border-radius: 28px;
  color: #fff;
  background:
    radial-gradient(ellipse 60% 70% at 100% 0%, rgba(219,39,119,.28) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 0% 100%, rgba(162,28,175,.30) 0%, transparent 60%),
    linear-gradient(150deg, #2b0d20 0%, #1a0a12 55%, #2a0b26 100%);
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 40px 90px rgba(26,10,18,.28), inset 0 1px 0 rgba(255,255,255,.06);
}
.cc-h {
  font-family: var(--font-disp);
  font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 700;
  letter-spacing: -.02em; line-height: 1.2; margin-bottom: 12px;
}
.cc-sub { color: rgba(255,240,248,.62); font-size: 1rem; }

.cc-methods { display: flex; flex-wrap: wrap; gap: 28px 64px; margin-top: 40px; }
.cc-method { display: flex; align-items: center; gap: 18px; color: inherit; text-decoration: none; }
.cc-ico {
  width: 56px; height: 56px; flex-shrink: 0; border-radius: 50%;
  display: grid; place-items: center; color: #831843;
  background: radial-gradient(circle at 35% 30%, #fff 0%, #fce7f3 45%, #f9a8d4 100%);
  box-shadow: 0 0 0 6px rgba(244,114,182,.12), 0 10px 30px rgba(236,72,153,.45);
  transition: transform .25s, box-shadow .25s;
}
.cc-ico svg { width: 24px; height: 24px; }
.cc-method:hover .cc-ico { transform: translateY(-2px) scale(1.04); box-shadow: 0 0 0 8px rgba(244,114,182,.18), 0 14px 36px rgba(236,72,153,.55); }
.cc-txt { display: flex; flex-direction: column; gap: 4px; }
.cc-lbl { font-size: .82rem; color: rgba(255,240,248,.6); }
.cc-val {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem); font-weight: 600; letter-spacing: .01em;
  direction: ltr; unicode-bidi: isolate;
}
.cc-method:hover .cc-val { color: #f9a8d4; }

.cc-div { border: 0; height: 1px; background: rgba(255,255,255,.1); margin: 44px 0 36px; }
.cc-chat-h { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
.cc-chat-sub { color: rgba(255,240,248,.6); font-size: .92rem; margin-bottom: 26px; }

.chat-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 14px; }
.chat-card {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  padding: 16px 14px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  color: #fff; text-decoration: none;
  transition: transform .25s, border-color .25s, background .25s, box-shadow .25s;
}
.chat-card:hover, .chat-card:focus-visible {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--brand) 70%, transparent);
  background: rgba(255,255,255,.07);
  box-shadow: 0 16px 40px rgba(0,0,0,.35), 0 0 0 1px color-mix(in srgb, var(--brand) 35%, transparent);
  outline: none;
}
.qr-tile {
  position: relative; width: 100%; aspect-ratio: 1;
  background: #fff; border-radius: 14px; padding: 8%;
}
.qr-tile img { width: 100%; height: 100%; display: block; }
.qr-badge {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 22%; aspect-ratio: 1; border-radius: 28%;
  background: var(--brand); border: 3px solid #fff;
  display: grid; place-items: center;
}
.qr-badge svg { width: 58%; height: 58%; }
.chat-name { display: flex; align-items: center; gap: 7px; font-weight: 700; font-size: .95rem; white-space: nowrap; }
.chat-name .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 8px var(--brand); }
.chat-open { font-size: .78rem; color: rgba(255,240,248,.6); display: flex; align-items: center; gap: 6px; transition: color .2s; }
.chat-open .arr { display: inline-block; transition: transform .2s; }
.chat-card:hover .chat-open { color: #fff; }
.chat-card:hover .chat-open .arr { transform: translateX(3px); }
html[dir="rtl"] .chat-open .arr { transform: scaleX(-1); }
html[dir="rtl"] .chat-card:hover .chat-open .arr { transform: scaleX(-1) translateX(3px); }

@media (max-width: 1100px) { .chat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .contact-card { padding: 36px 22px 30px; border-radius: 22px; }
  .cc-methods { gap: 22px; }
  .chat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
}

/* Contact Form */
.contact-form {
  background: var(--paper);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-lg);
}
.form-title {
  font-family: var(--font-disp);
  font-size: 1.5rem; font-weight: 700;
  color: var(--ink); margin-bottom: 6px; letter-spacing: -.02em;
}
.form-sub { font-size: .9rem; color: var(--ink-3); margin-bottom: 32px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .8rem; font-weight: 600;
  color: var(--ink-2); margin-bottom: 7px; letter-spacing: .01em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--paper-2);
  border: 1.5px solid var(--border-2);
  border-radius: 9px;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--ink);
  outline: none;
  transition: all .2s;
  appearance: none;
  line-height: 1.5;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-4); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--pink);
  background: var(--paper);
  box-shadow: 0 0 0 3px rgba(219,39,119,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { color: var(--ink-2); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c497b0' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }

.btn-submit {
  width: 100%;
  background: var(--pink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: .95rem; font-weight: 700;
  padding: 14px;
  border-radius: 9px; border: none;
  cursor: pointer;
  transition: all .2s;
  letter-spacing: .01em;
  box-shadow: 0 4px 14px rgba(219,39,119,.35);
}
.btn-submit:hover { background: #be185d; box-shadow: 0 8px 24px rgba(219,39,119,.45); transform: translateY(-1px); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ FOOTER */
footer {
  background: var(--ink);
  padding: 44px 48px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 20px;
  position: relative; z-index: 1;
}
.foot-logo {
  font-family: var(--font-disp);
  font-size: 1.2rem; font-weight: 700;
  color: rgba(255,255,255,.9); letter-spacing: -.01em;
}
.foot-logo .ft { color: var(--pink); }
.foot-copy { font-size: .8rem; color: rgba(255,255,255,.35); letter-spacing: .04em; font-family: var(--font-mono); }
.foot-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center; }
.foot-ver {
  font-family: 'IBM Plex Mono', monospace; font-size: .68rem; letter-spacing: .06em;
  color: rgba(255,255,255,.55); border: 1px solid rgba(219,39,119,.45);
  background: rgba(219,39,119,.12); padding: 2px 9px; border-radius: 999px;
  direction: ltr; unicode-bidi: isolate;
}
.foot-links { display: flex; gap: 28px; list-style: none; }
.foot-links a {
  font-size: .8rem; color: rgba(255,255,255,.4);
  text-decoration: none; transition: color .2s; letter-spacing: .02em;
}
.foot-links a:hover { color: var(--pink); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PER-LANGUAGE TYPOGRAPHY */
html[lang="ru"] { --font-disp: 'Noto Serif', Georgia, serif; --font-body: 'Noto Sans', 'Plus Jakarta Sans', sans-serif; }
html[lang="hi"] { --font-disp: 'Noto Sans Devanagari', sans-serif; --font-body: 'Noto Sans Devanagari', 'Plus Jakarta Sans', sans-serif; }
html[lang="ar"] { --font-disp: 'Noto Kufi Arabic', sans-serif; --font-body: 'Noto Sans Arabic', 'Plus Jakarta Sans', sans-serif; --font-mono: 'Noto Sans Arabic', 'IBM Plex Mono', monospace; }
html[lang="hi"] { --font-mono: 'Noto Sans Devanagari', 'IBM Plex Mono', monospace; }
html[lang="ru"] { --font-mono: 'IBM Plex Mono', 'Noto Sans', monospace; }
html[lang="hi"] .hero-title, html[lang="ar"] .hero-title { line-height: 1.3; }
html[lang="hi"] .sec-h, html[lang="ar"] .sec-h { line-height: 1.4; }
html[lang="hi"] .sol-title, html[lang="ar"] .sol-title { line-height: 1.6; }
html[lang="ar"] body, html[lang="ar"] body * { letter-spacing: 0 !important; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RTL (Arabic) */
html[dir="rtl"] .lang-opt .lo-name { unicode-bidi: isolate; }
html[dir="rtl"] .lang-drop { right: auto; left: 0; }
html[dir="rtl"] .lo-check { margin-left: 0; margin-right: auto; }
html[dir="rtl"] .scroll-txt { writing-mode: horizontal-tb; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ REVEAL */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s cubic-bezier(.16,1,.3,1), transform .75s cubic-bezier(.16,1,.3,1); }
.reveal.vis { opacity: 1; transform: none; }
.d1{transition-delay:.1s} .d2{transition-delay:.2s} .d3{transition-delay:.3s} .d4{transition-delay:.4s}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SCROLLBAR */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb { background: var(--pink-mid); border-radius: 3px; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ RESPONSIVE */
@media(max-width:1024px){
  .sol-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.cap-grid{grid-template-columns:1fr;gap:48px}
  .about-visual{display:none}
}
@media(max-width:768px){
  nav{padding:0 20px}
  .nav-links{display:none}
  .stats-inner{flex-wrap:wrap}
  .stat-item{min-width:50%}
  .sol-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .contact-form{padding:28px 22px}
  footer{padding:32px 20px;flex-direction:column;text-align:center}
  .tech-grid{grid-template-columns:repeat(4,1fr)}
  .lang-btn .lang-code{display:none}
}