/* =========================================================
   Veltrix Group — styles.css
   Phong cách: Tech tối, gradient cyan/purple, lưới mảnh
========================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #060912;
  color: #d7dcec;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul { list-style: none; padding: 0; margin: 0; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
  color: #79c8ff; font-weight: 600; margin: 0 0 14px;
}
.eyebrow.center { display: flex; justify-content: center; }
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #3ee0ff; box-shadow: 0 0 12px #3ee0ff;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800; letter-spacing: -0.02em;
  color: #fff; margin: 0 0 14px;
}
.section-title.center { text-align: center; }
.section-sub {
  max-width: 720px; margin: 0 0 48px;
  color: #98a2bd; font-size: 17px;
}
.section-sub.center { margin-left: auto; margin-right: auto; text-align: center; }

.grad-text {
  background: linear-gradient(120deg, #3ee0ff 0%, #7c6bff 50%, #ff6bd6 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 10px;
  font-weight: 600; font-size: 14px; cursor: pointer;
  border: 1px solid transparent; transition: all .2s ease;
  white-space: nowrap;
}
.btn-lg { padding: 14px 24px; font-size: 15px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, #3ee0ff 0%, #7c6bff 100%);
  color: #0a0e1a; box-shadow: 0 8px 30px rgba(62, 224, 255, .25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(124, 107, 255, .4); }

.btn-ghost {
  background: rgba(255,255,255,.04); color: #d7dcec;
  border-color: rgba(255,255,255,.1);
}
.btn-ghost:hover { background: rgba(255,255,255,.08); }

.btn-ghost-light {
  background: rgba(255,255,255,.06); color: #fff;
  border-color: rgba(255,255,255,.18);
}
.btn-ghost-light:hover { background: rgba(255,255,255,.12); }

.btn-outline {
  background: transparent; color: #d7dcec;
  border-color: rgba(255,255,255,.18);
}
.btn-outline:hover { border-color: #3ee0ff; color: #fff; }

/* ---------------- Top Bar ---------------- */
.top-bar {
  background: linear-gradient(90deg, #0a1430, #161b4a);
  color: #b8c4e6; font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.top-bar p { margin: 0; padding: 9px 0; text-align: center; letter-spacing: .02em; }

/* ---------------- Header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 9, 18, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; }
.brand-mark {
  width: 36px; height: 36px; display: grid; place-items: center;
  background: linear-gradient(135deg, #3ee0ff, #7c6bff);
  color: #0a0e1a; border-radius: 9px;
}
.brand-text { font-size: 19px; letter-spacing: -0.01em; }
.brand-text em { font-style: normal; color: #79c8ff; font-weight: 600; }

.primary-nav { display: flex; gap: 26px; }
.primary-nav a {
  color: #a9b2cf; font-size: 14px; font-weight: 500;
  transition: color .2s;
}
.primary-nav a:hover { color: #fff; }

.header-cta { display: flex; gap: 10px; align-items: center; }

/* ---------------- Language Switch (3 nút VI/EN/ZH) ---------------- */
.lang-switch {
  display: inline-flex;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 9px;
  padding: 3px;
  gap: 2px;
}
.lang-switch button {
  background: transparent;
  border: 0;
  color: #98a2bd;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all .18s;
  min-width: 36px;
  letter-spacing: .02em;
}
.lang-switch button:hover { color: #fff; background: rgba(255,255,255,.06); }
.lang-switch button.active {
  background: linear-gradient(135deg, #3ee0ff, #7c6bff);
  color: #0a0e1a;
  box-shadow: 0 4px 12px rgba(62,224,255,.25);
}


.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 36px; height: 36px; padding: 0;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; margin: 4px auto;
  background: #fff; transition: all .2s;
}

/* ---------------- Hero ---------------- */
.hero { position: relative; padding: 90px 0 110px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(124,107,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,107,255,.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
}
.hero-glow {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: .55;
}
.hero-glow-a {
  width: 480px; height: 480px; top: -120px; left: -100px;
  background: radial-gradient(circle, #3ee0ff, transparent 60%);
}
.hero-glow-b {
  width: 520px; height: 520px; bottom: -140px; right: -120px;
  background: radial-gradient(circle, #7c6bff, transparent 60%);
}
.hero-particles span {
  position: absolute; width: 4px; height: 4px; border-radius: 50%;
  background: #3ee0ff; opacity: .6; animation: float 8s infinite ease-in-out;
}
.hero-particles span:nth-child(1) { top: 20%; left: 15%; animation-delay: 0s; }
.hero-particles span:nth-child(2) { top: 40%; left: 80%; animation-delay: 1s; background: #7c6bff; }
.hero-particles span:nth-child(3) { top: 70%; left: 25%; animation-delay: 2s; }
.hero-particles span:nth-child(4) { top: 30%; left: 60%; animation-delay: 3s; background: #ff6bd6; }
.hero-particles span:nth-child(5) { top: 80%; left: 70%; animation-delay: 4s; }
.hero-particles span:nth-child(6) { top: 15%; left: 45%; animation-delay: 5s; background: #7c6bff; }
.hero-particles span:nth-child(7) { top: 55%; left: 10%; animation-delay: 1.5s; }
.hero-particles span:nth-child(8) { top: 65%; left: 85%; animation-delay: 2.5s; background: #ff6bd6; }
.hero-particles span:nth-child(9) { top: 25%; left: 35%; animation-delay: 3.5s; }
.hero-particles span:nth-child(10) { top: 75%; left: 50%; animation-delay: 4.5s; background: #7c6bff; }
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -30px); }
}

.hero-inner {
  position: relative; display: grid; grid-template-columns: 1.05fr .95fr;
  gap: 60px; align-items: center;
}
.hero-title {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800; line-height: 1.05; letter-spacing: -0.03em;
  color: #fff; margin: 0 0 22px;
}
.hero-lead { font-size: 18px; color: #b8c4e6; margin: 0 0 32px; max-width: 580px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px; color: #98a2bd; font-size: 14px; }
.hero-meta li { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta svg { color: #3ee0ff; }

/* Hero card */
.hero-visual { position: relative; }
.hero-card {
  background: linear-gradient(180deg, rgba(20,26,52,.9), rgba(10,14,30,.95));
  border: 1px solid rgba(124,107,255,.25);
  border-radius: 16px; padding: 18px;
  box-shadow: 0 30px 80px rgba(124,107,255,.2);
  backdrop-filter: blur(20px);
}
.hero-card-head {
  display: flex; align-items: center; gap: 8px;
  padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 16px; font-family: 'JetBrains Mono', monospace; font-size: 12px; color: #98a2bd;
}
.hero-card-head .dot-r,.dot-y,.dot-g { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.hc-title { margin-left: 8px; }
.hc-row {
  display: flex; justify-content: space-between; font-size: 13px;
  color: #b8c4e6; margin-top: 12px;
}
.hc-row b { color: #fff; }
.hc-row b.up { color: #28c840; }
.hc-bar {
  height: 6px; background: rgba(255,255,255,.06); border-radius: 4px;
  margin-top: 6px; overflow: hidden;
}
.hc-bar span {
  display: block; height: 100%;
  background: linear-gradient(90deg, #3ee0ff, #7c6bff);
  border-radius: 4px;
}
.hc-chart { margin-top: 18px; height: 70px; }
.hc-tags {
  display: flex; gap: 6px; margin-top: 14px; flex-wrap: wrap;
}
.hc-tags span {
  font-size: 11px; padding: 4px 9px; border-radius: 999px;
  background: rgba(62,224,255,.1); color: #3ee0ff;
  border: 1px solid rgba(62,224,255,.3);
}

/* ---------------- Logos ---------------- */
.logos { padding: 50px 0; border-top: 1px solid rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.05); }
.logos-title { text-align: center; color: #98a2bd; font-size: 14px; margin: 0 0 28px; }
.logos-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 30px; align-items: center;
}
.logos-grid span {
  text-align: center; font-family: 'JetBrains Mono', monospace;
  font-size: 15px; font-weight: 500; color: #6c7798;
  letter-spacing: .08em; transition: color .2s;
}
.logos-grid span:hover { color: #fff; }

/* ---------------- About ---------------- */
.about { padding: 100px 0; }
.about-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.lead { font-size: 17px; color: #b8c4e6; margin: 0 0 24px; }
.check-list { margin: 0 0 28px; }
.check-list li {
  position: relative; padding-left: 28px; margin-bottom: 10px;
  color: #b8c4e6;
}
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 16px; height: 16px;
  background: linear-gradient(135deg, #3ee0ff, #7c6bff);
  border-radius: 50%;
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5 12l5 5L20 7' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  mask-size: contain;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
.stat {
  background: linear-gradient(180deg, rgba(20,26,52,.6), rgba(10,14,30,.4));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px; padding: 28px 22px;
}
.stat b {
  display: block; font-size: 38px; font-weight: 800;
  background: linear-gradient(120deg, #3ee0ff, #7c6bff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 6px;
}
.stat span { color: #98a2bd; font-size: 14px; }

/* ---------------- Services ---------------- */
.services { padding: 100px 0; background: linear-gradient(180deg, transparent, rgba(20,26,52,.3)); }
.service-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.service-card {
  position: relative;
  background: linear-gradient(180deg, rgba(20,26,52,.7), rgba(10,14,30,.6));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px; padding: 28px 24px;
  transition: all .25s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124,107,255,.4);
  box-shadow: 0 20px 50px rgba(124,107,255,.15);
}
.service-card.featured {
  border-color: rgba(62,224,255,.4);
  background: linear-gradient(180deg, rgba(62,224,255,.08), rgba(124,107,255,.05));
}
.service-card .badge {
  position: absolute; top: 16px; right: 16px;
  background: linear-gradient(135deg, #3ee0ff, #7c6bff);
  color: #0a0e1a; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; letter-spacing: .04em;
}
.service-icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(62,224,255,.15), rgba(124,107,255,.15));
  border: 1px solid rgba(124,107,255,.3);
  border-radius: 12px; color: #3ee0ff;
  margin-bottom: 18px;
}
.service-card h3 { color: #fff; margin: 0 0 10px; font-size: 19px; }
.service-card > p { color: #98a2bd; font-size: 14px; margin: 0 0 16px; }
.service-card ul { margin: 0 0 18px; }
.service-card ul li {
  font-size: 13px; color: #b8c4e6;
  padding: 6px 0; border-bottom: 1px dashed rgba(255,255,255,.06);
}
.service-card ul li:last-child { border-bottom: none; }
.card-link {
  font-size: 14px; font-weight: 600; color: #3ee0ff;
  display: inline-flex; align-items: center; gap: 4px;
  transition: gap .2s;
}
.card-link:hover { gap: 8px; }

/* ---------------- Subsidiaries (Công ty thành viên) ---------------- */
.subsidiaries { padding: 100px 0; background: linear-gradient(180deg, rgba(20,26,52,.3), transparent); }

.region-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  margin-bottom: 60px;
}
.region-card {
  position: relative;
  background: linear-gradient(180deg, rgba(20,26,52,.7), rgba(10,14,30,.6));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px; padding: 32px 28px;
  text-align: center;
  transition: all .25s ease;
}
.region-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,107,255,.35);
}
.region-card.highlight {
  border-color: rgba(62,224,255,.4);
  background: linear-gradient(180deg, rgba(62,224,255,.08), rgba(124,107,255,.05));
  box-shadow: 0 20px 60px rgba(124,107,255,.18);
}
.region-flag {
  font-size: 48px; line-height: 1;
  margin-bottom: 16px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,.3));
}
.region-card h4 { color: #fff; margin: 0 0 6px; font-size: 22px; font-weight: 700; }
.region-role {
  color: #79c8ff; font-size: 13px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  margin: 0 0 14px;
}
.region-card > p:last-child { color: #98a2bd; font-size: 14px; margin: 0; }

.sub-heading {
  color: #fff; font-size: 22px; font-weight: 700;
  text-align: center; margin: 0 0 30px;
  letter-spacing: -0.01em;
}
.sub-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.sub-card {
  background: linear-gradient(180deg, rgba(20,26,52,.6), rgba(10,14,30,.4));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px; padding: 28px 24px;
  transition: all .25s ease;
}
.sub-card:hover {
  transform: translateY(-4px);
  border-color: rgba(62,224,255,.35);
  box-shadow: 0 16px 40px rgba(62,224,255,.1);
}
.sub-logo {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(62,224,255,.15), rgba(124,107,255,.15));
  border: 1px solid rgba(124,107,255,.3);
  border-radius: 12px; color: #3ee0ff;
  margin-bottom: 18px;
}
.sub-card h4 {
  color: #fff; margin: 0 0 4px; font-size: 17px;
  font-weight: 700; letter-spacing: .03em;
}
.sub-role {
  color: #79c8ff; font-size: 12px; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
  margin: 0 0 14px;
}
.sub-card > p:last-child { color: #98a2bd; font-size: 14px; margin: 0; }

.sub-note {
  text-align: center; color: #6c7798;
  font-size: 14px; margin: 36px 0 0;
  font-style: italic;
}

/* ---------------- Vision (Tầm nhìn / Sứ mệnh / Giá trị) ---------------- */
.vision { padding: 100px 0; }
.vision-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.vision-card {
  background: linear-gradient(180deg, rgba(20,26,52,.7), rgba(10,14,30,.6));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px; padding: 32px 28px;
  transition: all .25s ease;
}
.vision-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,107,255,.35);
}
.vision-icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(62,224,255,.15), rgba(124,107,255,.15));
  border: 1px solid rgba(124,107,255,.3);
  border-radius: 14px; color: #3ee0ff;
  margin-bottom: 20px;
}
.vision-card h4 {
  color: #fff; margin: 0 0 14px; font-size: 22px; font-weight: 700;
  letter-spacing: -0.01em;
}
.vision-card p { color: #b8c4e6; font-size: 15px; margin: 0; }
.values { margin: 0; padding: 0; }
.values li {
  color: #b8c4e6; font-size: 14px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255,255,255,.06);
}
.values li:last-child { border-bottom: none; }
.values li b { color: #fff; }

/* ---------------- Timeline (Cột mốc) ---------------- */
.milestones { padding: 100px 0; background: linear-gradient(180deg, transparent, rgba(20,26,52,.3)); }
.timeline {
  list-style: none; padding: 0; margin: 0 auto;
  max-width: 800px;
  position: relative;
}
.timeline::before {
  content: ""; position: absolute;
  top: 0; bottom: 0; left: 80px;
  width: 2px;
  background: linear-gradient(180deg, #3ee0ff, #7c6bff, transparent);
  opacity: .35;
}
.timeline li {
  position: relative;
  padding-left: 130px; padding-bottom: 36px;
}
.timeline li::before {
  content: ""; position: absolute;
  left: 73px; top: 6px;
  width: 16px; height: 16px;
  background: linear-gradient(135deg, #3ee0ff, #7c6bff);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(62,224,255,.5);
}
.t-year {
  position: absolute; left: 0; top: 4px;
  font-family: 'JetBrains Mono', monospace;
  color: #3ee0ff; font-weight: 600; font-size: 14px;
}
.timeline h4 { color: #fff; margin: 0 0 8px; font-size: 18px; }
.timeline p { color: #98a2bd; font-size: 14px; margin: 0; }

/* ---------------- Contact block ---------------- */
.contact-block { margin: 28px 0 0; padding: 0; }
.contact-block li {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.contact-block li:last-child { border-bottom: none; }
.cb-label {
  color: #6c7798; font-size: 12px;
  text-transform: uppercase; letter-spacing: .12em; font-weight: 600;
}
.contact-block a { color: #79c8ff; transition: color .2s; }
.contact-block a:hover { color: #3ee0ff; }

/* ---------------- Workflow ---------------- */
.workflow { padding: 100px 0; background: linear-gradient(180deg, rgba(20,26,52,.3), transparent); }
.wf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.wf-step {
  background: linear-gradient(180deg, rgba(20,26,52,.5), rgba(10,14,30,.3));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px; padding: 26px 22px;
  position: relative;
}
.wf-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; color: #3ee0ff;
  background: rgba(62,224,255,.1);
  padding: 4px 10px; border-radius: 6px;
  display: inline-block; margin-bottom: 14px;
}
.wf-step h4 { color: #fff; margin: 0 0 10px; font-size: 17px; }
.wf-step p { color: #98a2bd; font-size: 14px; margin: 0; }

/* ---------------- Security ---------------- */
.security { padding: 100px 0; }
.sec-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
  margin: 40px 0;
}
.sec-item {
  background: linear-gradient(180deg, rgba(20,26,52,.6), rgba(10,14,30,.4));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px; padding: 24px 22px;
}
.sec-item h4 { color: #fff; margin: 0 0 10px; font-size: 16px; }
.sec-item p { color: #98a2bd; font-size: 14px; margin: 0; }
.sec-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.sec-tags span {
  background: rgba(62,224,255,.08);
  border: 1px solid rgba(62,224,255,.25);
  color: #79c8ff;
  font-size: 12px; padding: 6px 14px; border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
}

/* ---------------- Contact / CTA ---------------- */
.cta {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(62,224,255,.06), rgba(124,107,255,.08));
  border-top: 1px solid rgba(124,107,255,.2);
  border-bottom: 1px solid rgba(124,107,255,.2);
}
.cta-inner {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center;
}
.cta h2 { color: #fff; font-size: clamp(28px, 4vw, 40px); margin: 0 0 14px; font-weight: 800; }
.cta-inner > div > p { color: #b8c4e6; font-size: 17px; margin: 0 0 28px; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-form {
  display: grid; gap: 14px;
  background: rgba(6,9,18,.7); padding: 28px;
  border: 1px solid rgba(124,107,255,.25);
  border-radius: 16px;
  backdrop-filter: blur(14px);
}
.cta-form label {
  display: grid; gap: 6px; font-size: 13px; color: #b8c4e6; font-weight: 500;
}
.cta-form input, .cta-form select, .cta-form textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 9px; padding: 10px 14px;
  color: #fff; font-family: inherit; font-size: 14px;
  transition: border-color .2s;
}
.cta-form input:focus, .cta-form select:focus, .cta-form textarea:focus {
  outline: none; border-color: #3ee0ff;
}
.cta-form textarea { resize: vertical; min-height: 80px; }

/* ---------------- Footer ---------------- */
.site-footer { background: #04060d; padding: 70px 0 24px; border-top: 1px solid rgba(255,255,255,.05); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 50px; margin-bottom: 50px;
}
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { color: #98a2bd; font-size: 14px; margin: 0 0 16px; }
.footer-brand address { color: #98a2bd; font-style: normal; font-size: 13px; line-height: 1.7; }
.footer-flags { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.footer-flags li {
  background: rgba(62,224,255,.08);
  border: 1px solid rgba(62,224,255,.2);
  color: #b8c4e6;
  font-size: 12px; padding: 5px 10px; border-radius: 999px;
  margin: 0;
}
.site-footer h5 {
  color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .12em;
  margin: 0 0 18px; font-weight: 700;
}
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { color: #98a2bd; font-size: 14px; transition: color .2s; }
.site-footer ul li a:hover { color: #3ee0ff; }
.contact-list li { display: flex; flex-direction: column; gap: 2px; margin-bottom: 14px; }
.contact-list li span { color: #6c7798; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,.06);
  color: #6c7798; font-size: 13px;
}
.footer-bottom ul { display: flex; gap: 22px; }
.footer-bottom ul li { margin: 0; }

/* ---------------- Responsive ---------------- */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .vision-grid { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
  .region-grid { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; }
  .sub-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .wf-grid { grid-template-columns: repeat(2, 1fr); }
  .sec-grid { grid-template-columns: repeat(2, 1fr); }
  .logos-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .primary-nav, .header-cta { display: none; }
  .nav-toggle { display: block; }
  .site-header.nav-open .primary-nav {
    display: flex; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #06091a; padding: 20px 24px;
    gap: 18px; border-bottom: 1px solid rgba(255,255,255,.08);
  }

  .hero { padding: 60px 0 70px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; max-width: 480px; margin: 0 auto; }

  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: 1fr 1fr; }

  .service-grid { grid-template-columns: 1fr; }
  .vision-grid { grid-template-columns: 1fr; }
  .wf-grid { grid-template-columns: 1fr; }
  .sec-grid { grid-template-columns: 1fr 1fr; }

  .timeline::before { left: 8px; }
  .timeline li { padding-left: 40px; }
  .timeline li::before { left: 1px; }
  .t-year {
    position: static; display: inline-block; margin-bottom: 6px;
    background: rgba(62,224,255,.1); padding: 3px 10px; border-radius: 6px;
  }

  .cta-inner { grid-template-columns: 1fr; gap: 40px; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}

@media (max-width: 480px) {
  .logos-grid { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: 1fr; }
  .sec-grid { grid-template-columns: 1fr; }
  .top-bar p { font-size: 12px; }
}