/* ================================================================
   LCG AviaS — Design System v3
   Dual theme (light default / dark toggle)
   Font: Plus Jakarta Sans (headings) + Inter (body)
   ================================================================ */

/* Local font files: no third-party requests are made at runtime. */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('assets/fonts/inter-latin.woff2') format('woff2');
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 700 800;
  font-display: swap;
  src: url('assets/fonts/plus-jakarta-sans-latin.woff2') format('woff2');
}

/* ─── LIGHT MODE (default) ───────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-page:    #f5f8fc;
  --bg-white:   #ffffff;
  --bg-soft:    #eef3fa;
  --bg-card:    #ffffff;

  /* Text */
  --t1:  #0d1f38;
  --t2:  #4b6785;
  --t3:  #8aa3c0;

  /* Brand */
  --blue:    #1a47cc;
  --blue-hi: #2563eb;
  --blue-lo: #4b7bf4;
  --cyan:    #0891b2;

  /* Surfaces */
  --border:        rgba(15,35,70,.09);
  --border-soft:   rgba(15,35,70,.05);
  --border-blue:   rgba(26,71,204,.18);

  /* Shadows */
  --sh-card:  0 1px 3px rgba(0,0,0,.05), 0 8px 24px rgba(13,31,56,.07);
  --sh-hover: 0 4px 12px rgba(0,0,0,.07), 0 20px 40px rgba(13,31,56,.10);
  --sh-btn:   0 6px 20px rgba(26,71,204,.25);

  /* Gradients */
  --g-blue:  linear-gradient(135deg, var(--blue), var(--cyan));

  /* Header */
  --hdr-bg:     rgba(245,248,252,.90);
  --hdr-border: rgba(15,35,70,.08);

  /* Model card */
  --mc-bg:     linear-gradient(155deg, #eaf2ff 0%, #ddeaf9 100%);
  --mc-border: rgba(26,71,204,.14);
  --branch-bg: rgba(26,71,204,.06);
  --branch-br: rgba(26,71,204,.12);
  --mf-bg:     rgba(26,71,204,.05);
  --mf-br:     rgba(26,71,204,.09);

  /* Tokens */
  --r-sm:  12px;
  --r-md:  16px;
  --r-lg:  22px;
  --r-xl:  28px;
  --max:   1240px;
  --ease:  cubic-bezier(.16,1,.3,1);
}

/* ─── DARK MODE ──────────────────────────────────────────────────── */
.dark {
  --bg-page:   #07101f;
  --bg-white:  #0c1a2e;
  --bg-soft:   #091425;
  --bg-card:   #101f35;

  --t1:  #e6f0fd;
  --t2:  #7898be;
  --t3:  #3e5e82;

  --blue:    #2563eb;
  --blue-hi: #3b82f6;
  --blue-lo: #60a5fa;
  --cyan:    #06b6d4;

  --border:      rgba(255,255,255,.07);
  --border-soft: rgba(255,255,255,.04);
  --border-blue: rgba(37,99,235,.26);

  --sh-card:  0 4px 20px rgba(0,0,0,.30);
  --sh-hover: 0 12px 40px rgba(0,0,0,.42);
  --sh-btn:   0 8px 26px rgba(37,99,235,.36);

  --hdr-bg:     rgba(7,16,31,.86);
  --hdr-border: rgba(255,255,255,.05);

  --mc-bg:     linear-gradient(155deg, #0d1e42 0%, #091428 100%);
  --mc-border: rgba(37,99,235,.22);
  --branch-bg: rgba(255,255,255,.05);
  --branch-br: rgba(255,255,255,.08);
  --mf-bg:     rgba(255,255,255,.04);
  --mf-br:     rgba(255,255,255,.06);
}

/* ─── RESET ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-page);
  color: var(--t1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}
a  { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul  { list-style: none; }

/* ─── TYPOGRAPHY ──────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  line-height: 1.10;
  letter-spacing: -.025em;
}

/* ─── LAYOUT ──────────────────────────────────────────────────────── */
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.s-pad     { padding: 96px 0; }

/* ─── GRADIENT TEXT ───────────────────────────────────────────────── */
.g-text {
  background: var(--g-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── LABEL BADGE ─────────────────────────────────────────────────── */
.label-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-blue);
  background: rgba(26,71,204,.07);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--blue-lo);
  margin-bottom: 18px;
}
.label-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-hi);
  flex-shrink: 0;
}

.tag-pill {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(26,71,204,.08);
  border: 1px solid var(--border-blue);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--blue-lo);
  margin-bottom: 14px;
}

.pill-badge {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(26,71,204,.05);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--t2);
}

/* ─── BUTTONS ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  white-space: nowrap;
  transition: transform .22s var(--ease), box-shadow .22s ease, background .22s ease, border-color .22s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn[disabled] { opacity: .65; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  color: #fff;
  background: var(--g-blue);
  box-shadow: var(--sh-btn);
}
.btn-primary:hover { box-shadow: 0 10px 28px rgba(26,71,204,.35); }

.btn-ghost {
  color: var(--t1);
  background: transparent;
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-white); border-color: rgba(15,35,70,.16); }

.btn-full { width: 100%; }

/* ─── HEADER ──────────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0; z-index: 100;
  background: var(--hdr-bg);
  backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--hdr-border);
  transition: background .3s;
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand img { height: 52px; width: auto; }
/* Dark mode: if logo needs brightening uncomment below */
/* .dark .brand img { filter: brightness(0) invert(1); } */

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--t2);
  position: relative;
  transition: color .2s;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--t1); }
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1.5px;
  background: var(--g-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }

.nav-right { display: flex; align-items: center; gap: 10px; }

/* Language switch */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(26,71,204,.04);
}
.lang-btn {
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  border: none;
  background: transparent;
  color: var(--t3);
  cursor: pointer;
  transition: background .2s, color .2s;
}
.lang-btn.active {
  background: var(--bg-white);
  color: var(--t1);
  box-shadow: 0 1px 6px rgba(0,0,0,.08);
}

/* Theme toggle */
.mode-btn {
  width: 34px; height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-white);
  color: var(--t2);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background .2s, color .2s, border-color .2s;
  flex-shrink: 0;
}
.mode-btn:hover { color: var(--t1); border-color: var(--border-blue); }
.mode-btn svg { width: 15px; height: 15px; }
/* Show correct icon per mode */
.i-moon { display: block; }  /* shown in light → click to go dark */
.i-sun  { display: none;  }
.dark .i-moon { display: none;  }
.dark .i-sun  { display: block; }

/* Mobile menu button */
.menu-btn {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: var(--bg-white);
  color: var(--t2);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-bar {
  display: block;
  width: 17px; height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

/* ─── HERO ────────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 60px;
  background: var(--bg-page);
}

/* Subtle top radial glow (light) — orbs appear only in dark */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 50% -10%,
    rgba(26,71,204,.07) 0%, transparent 65%);
  pointer-events: none;
  transition: opacity .3s;
}
.dark .hero::before {
  background: radial-gradient(ellipse 70% 55% at 50% -10%,
    rgba(37,99,235,.14) 0%, transparent 65%);
}

.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

/* Orbs: hidden in light, shown in dark */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(88px);
  opacity: 0;
  transition: opacity .5s;
  animation: orb-float 18s ease-in-out infinite;
}
.dark .hero-orb { opacity: 1; }
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.20), transparent 65%);
  left: -140px; top: -120px;
  animation-duration: 18s;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,.14), transparent 65%);
  right: -80px; top: 80px;
  animation-duration: 24s;
  animation-delay: -7s;
}
.hero-orb-3 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(99,102,241,.10), transparent 65%);
  left: 35%; bottom: -60px;
  animation-duration: 30s;
  animation-delay: -14s;
}
@keyframes orb-float {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%       { transform: translate(26px,-20px) scale(1.04); }
  66%       { transform: translate(-18px,24px) scale(.97); }
}

/* Grid overlay: very subtle in light, slightly more visible in dark */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15,35,70,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,35,70,.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 72% 72% at 50% 50%,
    transparent 20%, black 75%);
  transition: opacity .3s;
}
.dark .hero-grid-overlay {
  background-image:
    linear-gradient(rgba(255,255,255,.030) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.030) 1px, transparent 1px);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-logo {
  width: min(500px, 82%);
  margin: 0 auto 28px;
  opacity: 0;
  transform: translateY(-16px);
  animation: fade-down .85s var(--ease) forwards .15s;
}
/* Keep logo visible in dark mode — adjust filter if logo is dark-colored */
.dark .hero-logo {
  /* filter: brightness(0) invert(1); */
}

@keyframes fade-down { to { opacity: 1; transform: translateY(0); } }

.hero-badge-wrap {
  margin-bottom: 22px;
  opacity: 0;
  animation: fade-up .8s var(--ease) forwards .38s;
}

.hero h1 {
  font-size: clamp(38px, 5.4vw, 76px);
  font-weight: 800;
  max-width: 15ch;
  margin: 0 auto 20px;
  color: var(--t1);
  opacity: 0;
  animation: fade-up .85s var(--ease) forwards .56s;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.78;
  color: var(--t2);
  max-width: 54ch;
  margin: 0 auto 32px;
  opacity: 0;
  animation: fade-up .85s var(--ease) forwards .72s;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up .85s var(--ease) forwards .88s;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Ticker */
.ticker-wrap {
  position: relative;
  z-index: 2;
  margin-top: 56px;
  border-top: 1px solid var(--border-soft);
  overflow: hidden;
  opacity: 0;
  animation: fade-in .8s ease forwards 1.1s;
}
@keyframes fade-in { to { opacity: 1; } }

.ticker-track {
  overflow: hidden;
  padding: 15px 0;
  mask-image: linear-gradient(90deg,
    transparent, black 8%, black 92%, transparent);
}
.ticker-inner {
  display: flex;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
}
.ticker-inner span {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--t3);
  padding: 0 18px;
}
.ticker-inner span.dot { color: var(--blue-lo); padding: 0 4px; }
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── INSIGHT ─────────────────────────────────────────────────────── */
.insight {
  background: var(--bg-white);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.insight-copy h2 {
  font-size: clamp(30px, 3.4vw, 50px);
  color: var(--t1);
  margin-bottom: 16px;
  max-width: 14ch;
}
.insight-copy > p {
  font-size: 15px;
  color: var(--t2);
  line-height: 1.80;
  margin-bottom: 38px;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
}
.stat-item {
  padding: 18px;
  border-radius: var(--r-md);
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  transition: border-color .25s, box-shadow .25s;
}
.stat-item:hover {
  border-color: var(--border-blue);
  box-shadow: 0 4px 16px rgba(26,71,204,.07);
}
.stat-item strong {
  display: block;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--t1);
  margin-bottom: 5px;
}
.stat-item span {
  font-size: 12px;
  color: var(--t3);
  line-height: 1.55;
}

/* Operating model card */
.model-card {
  border-radius: var(--r-xl);
  background: var(--mc-bg);
  border: 1px solid var(--mc-border);
  box-shadow: var(--sh-card);
  padding: 28px;
  min-height: 490px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  position: relative;
  overflow: hidden;
  transition: box-shadow .25s;
}
.model-card::before {
  content: '';
  position: absolute;
  top: -80px; left: -80px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(26,71,204,.08), transparent 65%);
  pointer-events: none;
}
.dark .model-card::before {
  background: radial-gradient(circle, rgba(37,99,235,.14), transparent 65%);
}
.model-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative; z-index: 1;
}
.model-top span {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800; font-size: 15px;
  color: var(--t1);
}
.model-top small {
  font-size: 10px; text-transform: uppercase;
  letter-spacing: .12em; color: var(--t3);
}
.model-branches {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px; align-items: center;
  position: relative; z-index: 1;
}
.branch {
  padding: 16px;
  border-radius: var(--r-md);
  background: var(--branch-bg);
  border: 1px solid var(--branch-br);
  transition: border-color .25s;
}
.branch:hover { border-color: var(--border-blue); }
.branch h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11px; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase;
  color: var(--blue-lo); margin-bottom: 10px;
}
.branch ul li {
  font-size: 12px; color: var(--t2);
  line-height: 1.75; padding-left: 12px; position: relative;
}
.branch ul li::before {
  content: '—'; position: absolute; left: 0;
  color: var(--blue-lo); font-size: 10px;
}
.branch-conn {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(26,71,204,.10);
  border: 1px solid var(--border-blue);
  font-size: 17px; color: var(--blue-lo); flex-shrink: 0;
}
.model-footer {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 9px; position: relative; z-index: 1;
}
.mf-item {
  padding: 12px;
  border-radius: var(--r-sm);
  background: var(--mf-bg);
  border: 1px solid var(--mf-br);
}
.mf-item strong {
  display: block; font-size: 9px;
  text-transform: uppercase; letter-spacing: .10em;
  color: var(--blue-lo); margin-bottom: 4px;
}
.mf-item span { font-size: 11px; color: var(--t2); line-height: 1.5; }

/* ─── SECTION HEADER ──────────────────────────────────────────────── */
.s-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px; margin-bottom: 48px;
}
.s-head h2 {
  font-size: clamp(28px, 3.4vw, 44px);
  color: var(--t1); margin-top: 4px;
  max-width: 14ch;
}
.s-head > p {
  max-width: 52ch; color: var(--t2);
  line-height: 1.80; font-size: 15px;
}

/* ─── SOLUTIONS ───────────────────────────────────────────────────── */
.solutions { background: var(--bg-page); }
.sol-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.sol-card {
  border-radius: var(--r-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--sh-card);
  padding: 38px;
  position: relative;
  overflow: hidden;
  transition: transform .28s var(--ease), box-shadow .28s ease, border-color .28s;
}
/* Accent line on hover */
.sol-accent {
  position: absolute;
  top: 0; left: 38px; right: 38px;
  height: 2px;
  background: var(--g-blue);
  opacity: 0;
  border-radius: 0 0 2px 2px;
  transition: opacity .28s;
}
.sol-card:hover { transform: translateY(-6px); box-shadow: var(--sh-hover); border-color: var(--border-blue); }
.sol-card:hover .sol-accent { opacity: 1; }
.sol-icon {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: rgba(26,71,204,.08);
  border: 1px solid var(--border-blue);
  display: grid; place-items: center;
  color: var(--blue-lo); margin-bottom: 22px;
}
.sol-card h3 { font-size: 21px; font-weight: 700; color: var(--t1); margin-bottom: 10px; }
.sol-card > p { font-size: 15px; color: var(--t2); line-height: 1.76; margin-bottom: 26px; }
.feat-list { padding-top: 22px; border-top: 1px solid var(--border); }
.feat-list li {
  font-size: 14px; color: var(--t2);
  padding: 8px 0; border-bottom: 1px solid var(--border-soft);
  display: flex; align-items: center; gap: 10px;
}
.feat-list li:last-child { border-bottom: none; }
.feat-list li::before {
  content: '';
  width: 18px; height: 18px; border-radius: 50%; flex-shrink: 0;
  background: rgba(26,71,204,.08)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M4 9l3.5 3.5L14 6' stroke='%234b7bf4' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center/contain no-repeat;
  border: 1px solid rgba(26,71,204,.16);
}

/* ─── CASES ───────────────────────────────────────────────────────── */
.cases {
  background: var(--bg-white);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.cases-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.case-card {
  border-radius: var(--r-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--sh-card);
  padding: 30px;
  transition: transform .28s var(--ease), box-shadow .28s, border-color .28s;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--sh-hover); border-color: var(--border-blue); }
.case-num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 48px; font-weight: 800;
  line-height: 1; letter-spacing: -.04em;
  color: var(--bg-soft); margin-bottom: -4px;
}
.dark .case-num { color: rgba(255,255,255,.06); }
.case-card h3 { font-size: 16px; font-weight: 700; color: var(--t1); margin-bottom: 10px; line-height: 1.3; }
.case-card p  { font-size: 14px; color: var(--t2); line-height: 1.72; }

/* ─── SECTORS ─────────────────────────────────────────────────────── */
.sectors { background: var(--bg-page); }
.sec-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 15px; }
.sec-card {
  border-radius: var(--r-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--sh-card);
  padding: 26px;
  transition: transform .28s var(--ease), box-shadow .28s, border-color .28s;
}
.sec-card:hover { transform: translateY(-4px); box-shadow: var(--sh-hover); border-color: var(--border-blue); }
.sec-icon {
  width: 42px; height: 42px;
  border-radius: var(--r-sm);
  background: rgba(26,71,204,.07);
  border: 1px solid var(--border-blue);
  display: grid; place-items: center;
  color: var(--blue-lo); margin-bottom: 16px;
}
.sec-card h3 { font-size: 15px; font-weight: 700; color: var(--t1); margin-bottom: 8px; }
.sec-card p  { font-size: 13px; color: var(--t2); line-height: 1.68; }

/* ─── METHOD ──────────────────────────────────────────────────────── */
.method {
  background: var(--bg-white);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.method-steps {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 0; position: relative;
}
.method-steps::before {
  content: '';
  position: absolute;
  top: 28px; left: calc(12.5% + 14px); right: calc(12.5% + 14px);
  height: 1px;
  background: linear-gradient(90deg,
    transparent, var(--border-blue) 15%,
    var(--border-blue) 85%, transparent);
  pointer-events: none;
}
.method-step { padding: 0 20px; position: relative; }
.method-step:first-child { padding-left: 0; }
.method-step:last-child  { padding-right: 0; }
.step-circle {
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-blue);
  box-shadow: 0 2px 8px rgba(26,71,204,.08);
  margin-bottom: 20px; position: relative; z-index: 1;
  transition: background .25s, border-color .25s;
}
.method-step:hover .step-circle { background: rgba(26,71,204,.06); border-color: var(--blue-hi); }
.step-num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 15px; font-weight: 800;
  background: var(--g-blue);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.method-step h3 { font-size: 16px; font-weight: 700; color: var(--t1); margin-bottom: 8px; }
.method-step p  { font-size: 13px; color: var(--t2); line-height: 1.68; }

/* ─── ABOUT ───────────────────────────────────────────────────────── */
.about { background: var(--bg-page); }
.about-card {
  border-radius: var(--r-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--sh-card);
  padding: 56px 64px;
  position: relative; overflow: hidden;
}
.about-card::after {
  content: '';
  position: absolute;
  bottom: -100px; right: -100px;
  width: 440px; height: 440px;
  background: radial-gradient(circle, rgba(26,71,204,.05), transparent 65%);
  pointer-events: none;
}
.about-card h2 {
  font-size: clamp(24px, 2.8vw, 38px);
  color: var(--t1); margin-bottom: 18px; max-width: 22ch;
}
.about-card p { font-size: 16px; color: var(--t2); line-height: 1.82; max-width: 72ch; }

/* ─── CONTACT ─────────────────────────────────────────────────────── */
.contact {
  background: var(--bg-white);
  border-top: 1px solid var(--border-soft);
}
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.25fr;
  gap: 72px; align-items: start;
}
.contact-left h2 {
  font-size: clamp(34px, 3.8vw, 56px);
  color: var(--t1); margin-bottom: 16px; line-height: 1.06;
}
.contact-left > p { font-size: 15px; color: var(--t2); line-height: 1.80; margin-bottom: 34px; }
.contact-emails { display: flex; flex-direction: column; gap: 10px; }
.contact-emails a {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 500; color: var(--blue-lo);
  transition: color .2s;
}
.contact-emails a:hover { color: var(--t1); }
.contact-emails a svg { flex-shrink: 0; opacity: .7; }

.contact-form-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--sh-card);
  border-radius: var(--r-xl); padding: 34px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.f-input {
  display: block; width: 100%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 13px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 14px; color: var(--t1);
  outline: none; margin-bottom: 12px;
  transition: border-color .2s, box-shadow .2s, background .2s;
  -webkit-appearance: none;
}
.f-input::placeholder { color: var(--t3); }
.f-input:focus {
  border-color: rgba(26,71,204,.40);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(26,71,204,.09);
}
textarea.f-input { resize: vertical; min-height: 118px; }
.contact-form-box .btn-full { margin-top: 4px; }

.form-status {
  padding: 12px 16px; border-radius: var(--r-md);
  font-size: 13px; font-weight: 500; line-height: 1.55;
  margin-bottom: 14px;
}
.form-honeypot {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-status.success {
  background: rgba(21,128,61,.07); border: 1px solid rgba(21,128,61,.18);
  color: #15803d;
}
.dark .form-status.success { color: #86efac; background: rgba(34,197,94,.08); border-color: rgba(34,197,94,.20); }
.form-status.error {
  background: rgba(185,28,28,.06); border: 1px solid rgba(185,28,28,.18);
  color: #b91c1c;
}
.dark .form-status.error { color: #fca5a5; background: rgba(239,68,68,.07); border-color: rgba(239,68,68,.20); }

/* ─── FOOTER ──────────────────────────────────────────────────────── */
.footer { padding: 26px 0; border-top: 1px solid var(--border-soft); background: var(--bg-page); }
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.footer-inner p { font-size: 13px; color: var(--t3); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--t3); transition: color .2s; }
.footer-links a:hover { color: var(--blue-lo); }

/* ─── SCROLL REVEAL ───────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .70s var(--ease), transform .70s var(--ease); }
.reveal.show   { opacity: 1; transform: none; }
.reveal-d1     { transition-delay: .11s; }
.reveal-d2     { transition-delay: .20s; }
.reveal-d3     { transition-delay: .29s; }

/* ─── RESPONSIVE ──────────────────────────────────────────────────── */
@media (max-width: 1120px) {
  .insight-grid  { grid-template-columns: 1fr; gap: 44px; }
  .sol-grid      { grid-template-columns: 1fr; }
  .sec-grid      { grid-template-columns: repeat(2,1fr); }
  .method-steps  { grid-template-columns: repeat(2,1fr); gap: 38px; }
  .method-steps::before { display: none; }
  .contact-grid  { grid-template-columns: 1fr; gap: 44px; }
}
@media (max-width: 860px) {
  .menu-btn  { display: flex; }
  .nav-links {
    display: none;
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 2px;
    padding: 16px 24px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(22px);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; font-size: 15px; }
  .nav-right .btn { display: none; }
  .header-inner { position: relative; }
  .cases-grid { grid-template-columns: 1fr; }
  .model-branches { grid-template-columns: 1fr; }
  .model-footer { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .s-head { flex-direction: column; align-items: flex-start; }
  .s-head > p { max-width: 100%; }
  .about-card { padding: 36px 28px; }
  .about-card h2 { max-width: none; }
}
@media (max-width: 560px) {
  .container { width: calc(100% - 32px); }
  .s-pad { padding: 68px 0; }
  .hero h1 { font-size: clamp(34px, 10vw, 52px); }
  .hero-lead { font-size: 16px; }
  .method-steps { grid-template-columns: 1fr; gap: 36px; }
  .sec-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .ticker-wrap { display: none; }
  .sol-card { padding: 26px 20px; }
  .about-card { padding: 28px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:.01ms!important; transition-duration:.01ms!important; }
  .reveal { opacity: 1; transform: none; }
  .hero-logo,.hero-badge-wrap,.hero h1,.hero-lead,.hero-actions,.ticker-wrap { opacity: 1; transform: none; }
}