/* ==========================================================================
   AITL Cambodia — Stylesheet v2 (light, editorial layout)
   ========================================================================== */

:root {
  --color-bg: #f8f6f1;
  --color-bg-panel: #ffffff;
  --color-ink: #14181f;
  --color-ink-soft: #4b5261;
  --color-muted: #7c8394;
  --color-border: rgba(20, 24, 31, 0.1);
  --color-accent: #f59e0b;
  --color-accent-2: #ef4444;
  --color-navy: #14181f;
  --gradient-brand: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-text: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --radius-sm: 6px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --max-width: 1200px;
  --transition: 220ms cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.1; font-weight: 800; letter-spacing: -0.03em; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
section { position: relative; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  padding: 7px 14px 7px 10px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gradient-brand); }

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head { max-width: 620px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); }
.section-head p { margin-top: 16px; color: var(--color-ink-soft); font-size: 1.08rem; }
.section-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-muted);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-ink);
  color: #fff;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -12px rgba(20,24,31,0.45); }
.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-outline:hover { background: var(--color-ink); color: #fff; transform: translateY(-3px); }
.btn-block { width: 100%; }
.btn-accent { background: var(--gradient-brand); color: #14181f; }
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 16px 34px -12px rgba(245,158,11,0.5); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; }
.brand img { width: 30px; height: 30px; }
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name span { font-size: 0.62rem; font-weight: 600; color: var(--color-muted); letter-spacing: 0.05em; text-transform: uppercase; margin-top: 2px; }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  padding: 9px 16px;
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover { background: var(--color-bg-panel); color: var(--color-ink); }

.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--color-ink); border-radius: 2px; }

/* ==========================================================================
   Hero — split, editorial
   ========================================================================== */
.hero { padding: 76px 0 0; }
.hero-top {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
  align-items: end;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--color-border);
}
.hero h1 {
  font-size: clamp(2.6rem, 5.2vw, 4.4rem);
}
.hero-lede { margin-top: 24px; font-size: 1.15rem; color: var(--color-ink-soft); max-width: 460px; align-self: start; }
.hero-actions { display: flex; gap: 14px; margin-top: 8px; flex-wrap: wrap; }

.hero-bento {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 48px 0;
}
.bento-card {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
}
.bento-card.wide { grid-column: span 2; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.bento-card .k { display: block; font-size: 2rem; font-weight: 800; }
.bento-card .v { display: block; font-size: 0.85rem; color: var(--color-muted); margin-top: 6px; }
.bento-card.dark { background: var(--color-ink); color: #fff; }
.bento-card.dark .v { color: #9aa1af; }
.bento-card.accent { background: var(--gradient-brand); color: #14181f; }
.bento-code { font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.8rem; line-height: 1.7; }
.bento-code .tok-key { color: #fbbf24; }
.bento-code .tok-str { color: #fca5a5; }
.bento-code .tok-com { color: #6b7280; }
.bento-code .tok-fn { color: #93c5fd; }

/* ==========================================================================
   Marquee ticker
   ========================================================================== */
.ticker {
  background: var(--color-ink);
  color: #fff;
  overflow: hidden;
  padding: 16px 0;
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  align-items: center;
  gap: 40px;
  animation: ticker-scroll 26s linear infinite;
}
.ticker-track span {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: 40px;
}
.ticker-track span::after { content: "◆"; color: var(--color-accent); font-size: 0.6rem; margin-left: 40px; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}

/* ==========================================================================
   Services — numbered list
   ========================================================================== */
.services { padding: 120px 0; }
.services-list { border-top: 1px solid var(--color-border); }
.service-row {
  display: grid;
  grid-template-columns: 90px 1.4fr 1.6fr 40px;
  gap: 28px;
  align-items: center;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.service-row:hover { background: var(--color-bg-panel); }
.service-row .idx { font-size: 0.9rem; font-weight: 800; color: var(--color-muted); }
.service-row h3 { font-size: 1.3rem; }
.service-row p { color: var(--color-ink-soft); font-size: 0.96rem; }
.service-row .arrow {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.service-row:hover .arrow { background: var(--color-ink); border-color: var(--color-ink); transform: rotate(45deg); }
.service-row .arrow svg { width: 16px; height: 16px; stroke: var(--color-ink); transition: stroke var(--transition); }
.service-row:hover .arrow svg { stroke: #fff; }

/* ==========================================================================
   Approach — horizontal timeline
   ========================================================================== */
.approach { padding: 0 0 120px; }
.approach-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.approach-track::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-border);
}
.approach-step { position: relative; padding-right: 24px; }
.approach-step .marker {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.approach-step:first-child .marker { background: var(--gradient-brand); border-color: transparent; color: #14181f; }
.approach-step h3 { font-size: 1.08rem; margin-bottom: 8px; }
.approach-step p { color: var(--color-ink-soft); font-size: 0.92rem; }

/* ==========================================================================
   Why — split panel
   ========================================================================== */
.why { padding: 0 0 120px; }
.why-panel {
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.why-panel .section-num, .why-panel .tag { color: #9aa1af; }
.why-panel .tag { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: #fff; }
.why-panel h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); color: #fff; }
.why-panel > .why-copy > p { margin-top: 16px; color: #b6bcc7; font-size: 1.02rem; }
.why-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-content: start; }
.why-metric-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 24px;
}
.why-metric-card strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.why-metric-card span { display: block; margin-top: 6px; font-size: 0.82rem; color: #9aa1af; }

/* ==========================================================================
   Industries — single-sector spotlight
   ========================================================================== */
.industries { padding: 0 0 120px; }
.industry-spotlight {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 60px;
}
.spotlight-copy h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-top: 6px; }
.spotlight-copy p { margin-top: 16px; color: var(--color-ink-soft); font-size: 1.02rem; max-width: 420px; }

.spotlight-list { display: flex; flex-direction: column; }
.spotlight-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}
.spotlight-item:first-child { padding-top: 0; }
.spotlight-item:last-child { border-bottom: none; padding-bottom: 0; }
.spotlight-num {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-accent);
}
.spotlight-item h4 { font-size: 1.05rem; margin-bottom: 6px; }
.spotlight-item p { color: var(--color-ink-soft); font-size: 0.92rem; }

/* ==========================================================================
   Principle band
   ========================================================================== */
.principle { padding: 0 0 120px; }
.principle-inner {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
  text-align: center;
}
.principle-inner p {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto;
}
.principle-inner .sub { display: block; margin-top: 24px; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-muted); }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { padding: 0 0 130px; }
.contact-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-panel);
  padding: 60px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-info h2 { font-size: clamp(1.8rem, 3vw, 2.3rem); }
.contact-info p { margin-top: 16px; color: var(--color-ink-soft); }
.contact-details { margin-top: 34px; display: flex; flex-direction: column; gap: 18px; }
.contact-details a, .contact-details div {
  display: flex; align-items: center; gap: 14px;
  font-size: 0.96rem;
  font-weight: 600;
}
.contact-details .ico {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  flex: none;
}
.contact-details svg { width: 17px; height: 17px; stroke: var(--color-ink); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 0.82rem; font-weight: 700; margin-bottom: 8px; color: var(--color-ink-soft); }
.form-field input, .form-field textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: inherit;
  font-size: 0.94rem;
  transition: border-color var(--transition);
}
.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-ink);
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.8rem; color: var(--color-muted); margin-top: 12px; text-align: center; }
.form-success {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: #fef3c7;
  border: 1px solid #fde68a;
  color: #92400e;
  font-size: 0.88rem;
  text-align: center;
  font-weight: 600;
}
.form-success.visible { display: block; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--color-ink); color: #fff; padding: 60px 0 30px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 16px; color: #fff; }
.footer-brand .brand-name span { color: #9aa1af; }
.footer-brand p { color: #9aa1af; font-size: 0.9rem; max-width: 280px; }
.footer-col h5 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: #6b7280; margin-bottom: 18px; font-weight: 800; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 0.9rem; color: #cbd0d8; transition: color var(--transition); }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #7c8394;
}
.social-links { display: flex; gap: 12px; }
.social-links a {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
}
.social-links svg { width: 16px; height: 16px; stroke: #cbd0d8; }
.social-links a:hover svg { stroke: var(--color-accent); }

/* Back to top */
.back-to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-ink);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 30px -12px rgba(20,24,31,0.5);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top svg { width: 18px; height: 18px; stroke: #fff; }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Mobile
   ========================================================================== */
@media (max-width: 940px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 28px 24px;
    gap: 6px;
    align-items: flex-start;
  }
  .hero-top { grid-template-columns: 1fr; }
  .hero-bento { grid-template-columns: 1fr; }
  .bento-card.wide { grid-column: span 1; }
  .service-row { grid-template-columns: 50px 1fr; }
  .service-row p { grid-column: 2; }
  .service-row .arrow { display: none; }
  .approach-track { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .approach-track::before { display: none; }
  .why-panel { grid-template-columns: 1fr; padding: 40px; }
  .why-metrics { grid-template-columns: 1fr 1fr; }
  .industry-spotlight { grid-template-columns: 1fr; padding: 40px; gap: 36px; }
  .contact-panel { grid-template-columns: 1fr; padding: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .approach-track { grid-template-columns: 1fr; }
  .industry-spotlight { padding: 30px 24px; }
  .spotlight-item { grid-template-columns: 32px 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .why-metrics { grid-template-columns: 1fr; }
}