/* ===== Design tokens ===== */
:root {
  --navy: #0b1f3a;
  --navy-800: #10294c;
  --navy-700: #163661;
  --gold: #f6b100;
  --gold-600: #d99a00;
  --ink: #14213d;
  --slate: #4a5568;
  --muted: #7b8794;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --border: #e6eaf0;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(11, 31, 58, 0.08);
  --shadow: 0 12px 30px rgba(11, 31, 58, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 31, 58, 0.18);
  --maxw: 1140px;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-head: "Sora", "Inter", system-ui, sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; margin: 0; letter-spacing: -0.02em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-weight: 600; font-size: 0.98rem;
  padding: 13px 26px; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--gold); color: var(--navy); box-shadow: 0 8px 20px rgba(246, 177, 0, 0.35); }
.btn-primary:hover { background: var(--gold-600); box-shadow: 0 12px 26px rgba(246, 177, 0, 0.45); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover { background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.6); }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 31, 58, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav { display: flex; align-items: center; gap: 24px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--white); font-family: var(--font-head); }
.brand-mark {
  background: var(--gold); color: var(--navy); font-weight: 800;
  padding: 4px 9px; border-radius: 8px; letter-spacing: -0.03em; font-size: 1.05rem;
}
.brand-text { font-weight: 700; letter-spacing: 0.06em; font-size: 0.98rem; }
.brand-text small { font-weight: 500; opacity: 0.7; font-size: 0.7rem; letter-spacing: 0.1em; }
.nav-links { margin-left: auto; display: flex; gap: 28px; }
.nav-links a { color: rgba(255,255,255,0.82); font-weight: 500; font-size: 0.95rem; transition: color .2s; }
.nav-links a:hover { color: var(--gold); }
.nav-cta { padding: 10px 20px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: .25s; }

/* ===== Hero ===== */
.hero { position: relative; color: var(--white); overflow: hidden; background: var(--navy); }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 500px at 82% -10%, rgba(246,177,0,0.20), transparent 60%),
    radial-gradient(700px 500px at 5% 110%, rgba(22,54,97,0.9), transparent 55%),
    linear-gradient(160deg, #0b1f3a 0%, #10294c 55%, #0b1f3a 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 70% at 50% 30%, #000 40%, transparent 100%);
}
.hero-inner { position: relative; padding: 96px 24px 104px; max-width: var(--maxw); }
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.78rem;
  font-weight: 600; color: var(--gold); margin: 0 0 16px;
}
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800; margin-bottom: 22px; }
.lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: rgba(255,255,255,0.82); max-width: 620px; margin: 0 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 40px; margin-top: 60px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.12); padding-top: 28px;
}
.hero-stats strong { display: block; font-family: var(--font-head); font-size: 1.5rem; color: var(--white); }
.hero-stats span { color: rgba(255,255,255,0.65); font-size: 0.9rem; }

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin: 6px 0 12px; }
.section-sub { color: var(--slate); font-size: 1.05rem; margin: 0; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: center; }
.about-copy h2 { font-size: clamp(1.9rem, 4vw, 2.5rem); margin-bottom: 18px; }
.about-copy p { color: var(--slate); margin: 0 0 16px; font-size: 1.05rem; }
.about-points { list-style: none; margin: 0; padding: 28px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); }
.about-points li { display: flex; align-items: center; gap: 12px; padding: 12px 0; font-weight: 500; }
.about-points li + li { border-top: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gold); flex: none; box-shadow: 0 0 0 4px rgba(246,177,0,0.18); }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #d7deea; }
.card-icon {
  width: 52px; height: 52px; display: grid; place-items: center; font-size: 1.5rem;
  background: var(--navy); border-radius: 14px; margin-bottom: 18px;
}
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--slate); margin: 0; font-size: 0.98rem; }

/* ===== Clients ===== */
.clients { display: flex; flex-wrap: wrap; gap: 24px; justify-content: center; }
.client-logo {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  min-width: 260px; padding: 38px 40px;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.client-logo:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.client-img { height: 52px; width: auto; max-width: 220px; object-fit: contain; }
.client-name { font-family: var(--font-head); font-weight: 800; font-size: 1.9rem; color: var(--navy); letter-spacing: -0.02em; }
.client-tag { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.12em; margin-top: 4px; }

/* ===== Contact ===== */
.contact { background: var(--navy); color: var(--white); }
.contact .eyebrow { color: var(--gold); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-copy h2 { font-size: clamp(1.9rem, 4vw, 2.5rem); margin-bottom: 16px; }
.contact-copy p { color: rgba(255,255,255,0.78); font-size: 1.05rem; margin: 0 0 24px; }
.contact-email { display: inline-block; font-family: var(--font-head); font-weight: 700; font-size: 1.25rem; color: var(--gold); border-bottom: 2px solid rgba(246,177,0,0.4); padding-bottom: 2px; }
.contact-email:hover { border-color: var(--gold); }
.contact-form {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
  padding: 30px; border-radius: var(--radius); backdrop-filter: blur(6px);
}
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 7px; color: rgba(255,255,255,0.85); }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.06);
  color: var(--white); font-family: inherit; font-size: 0.98rem; resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: rgba(255,255,255,0.45); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--gold); background: rgba(255,255,255,0.10); }

/* ===== Footer ===== */
.site-footer { background: #081527; color: rgba(255,255,255,0.8); }
.footer-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; padding: 44px 24px 20px; }
.footer-links { display: flex; gap: 24px; margin-left: auto; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.95rem; }
.footer-links a:hover { color: var(--gold); }
.footer-contact { margin: 0; }
.footer-contact a { color: var(--gold); }
.footer-bottom { padding: 16px 24px 32px; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-bottom p { margin: 0; font-size: 0.85rem; color: rgba(255,255,255,0.5); }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .about-grid, .contact-inner { grid-template-columns: 1fr; gap: 32px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0;
    background: var(--navy-800); padding: 18px 24px; gap: 6px; border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav-links.open a { padding: 10px 0; }
  .section { padding: 64px 0; }
  .hero-inner { padding: 72px 24px 80px; }
  .hero-stats { gap: 28px; }
}
@media (max-width: 480px) {
  .cards { grid-template-columns: 1fr; }
  .client-logo { min-width: 100%; }
}