/* ═══════════════════════════════════════════════
   LETSAIL TECH LTD — GLOBAL STYLESHEET
   Aesthetic: African Premium Dark Tech
   Fonts: Syne (display) + DM Sans (body)
═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

:root {
  --bg:        #030b18;
  --bg2:       #071424;
  --bg3:       #0b1f38;
  --surface:   rgba(255,255,255,0.04);
  --surface2:  rgba(255,255,255,0.07);
  --border:    rgba(255,255,255,0.08);
  --teal:      #06b6d4;
  --teal-dim:  rgba(6,182,212,0.15);
  --teal-glow: rgba(6,182,212,0.3);
  --gold:      #f59e0b;
  --gold-dim:  rgba(245,158,11,0.12);
  --green:     #10b981;
  --white:     #f0f6ff;
  --muted:     #6b8caa;
  --text:      #c8ddef;
  --font-d:    'Syne', sans-serif;
  --font-b:    'DM Sans', sans-serif;
  --r:         10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-b);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
  z-index: 9998;
}

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--teal); border-radius: 2px; }

/* ── NAVBAR ──────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.1rem 5%;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(3,11,24,0.80);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s;
}
.navbar.scrolled { padding: 0.7rem 5%; }

.nav-logo {
  font-family: var(--font-d);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  display: flex; align-items: center; gap: 0.55rem;
  letter-spacing: -0.03em;
}
.nav-logo-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--teal), #0284c7);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 20px var(--teal-glow);
}

.nav-links {
  display: flex; align-items: center; gap: 2.2rem; list-style: none;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -3px; left: 0; right: 0;
  height: 1px; background: var(--teal);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

.nav-btn {
  background: var(--teal);
  color: #fff !important;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s !important;
  box-shadow: 0 0 20px var(--teal-glow);
}
.nav-btn::after { display: none !important; }
.nav-btn:hover { background: #0891b2 !important; transform: translateY(-1px); box-shadow: 0 0 35px var(--teal-glow) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; }
.hamburger span { width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: 0.3s; display: block; }

/* ── MOBILE MENU ─────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed; top: 68px; left: 0; right: 0;
  background: rgba(3,11,24,0.98);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 5%;
  flex-direction: column; gap: 1rem;
  z-index: 999;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { color: var(--muted); text-decoration: none; font-size: 1rem; padding: 0.6rem 0; border-bottom: 1px solid var(--border); transition: color 0.2s; }
.mobile-nav a:last-child { border: none; color: var(--teal); font-weight: 600; }
.mobile-nav a:hover { color: var(--white); }

/* ── PAGE WRAPPER ────────────────────────────── */
.page { padding-top: 70px; }

/* ── SECTION BASE ────────────────────────────── */
section { padding: 6rem 5%; }
.container { max-width: 1200px; margin: 0 auto; }

.tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}
.tag::before { content: ''; width: 18px; height: 1px; background: var(--teal); }

.section-title {
  font-family: var(--font-d);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 1.2rem;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 300;
  max-width: 560px;
  line-height: 1.75;
}
.text-teal { color: var(--teal); }
.text-gold { color: var(--gold); }

/* ── CARDS ───────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.8rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  border-color: rgba(6,182,212,0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

/* ── BUTTONS ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-b);
  font-weight: 600; font-size: 0.95rem;
  padding: 0.85rem 1.8rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.25s;
  border: none; cursor: pointer;
}
.btn-primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 0 30px var(--teal-glow);
}
.btn-primary:hover { background: #0891b2; transform: translateY(-2px); box-shadow: 0 0 50px var(--teal-glow); }
.btn-gold {
  background: var(--gold);
  color: #000;
  box-shadow: 0 0 25px rgba(245,158,11,0.25);
}
.btn-gold:hover { background: #d97706; transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--teal); background: var(--teal-dim); }

/* ── FOOTER ──────────────────────────────────── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 4rem 5% 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px; margin: 0 auto;
  margin-bottom: 3rem;
}
.footer-brand p { font-size: 0.88rem; color: var(--muted); line-height: 1.75; margin-top: 1rem; max-width: 280px; }
.footer-socials { display: flex; gap: 0.7rem; margin-top: 1.5rem; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.2s;
}
.social-btn:hover { border-color: var(--teal); color: var(--teal); background: var(--teal-dim); }
.footer-col h4 { font-family: var(--font-d); font-size: 0.85rem; font-weight: 700; color: var(--white); margin-bottom: 1.2rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { color: var(--muted); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--teal); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 2rem; border-top: 1px solid var(--border);
  font-size: 0.8rem; color: var(--muted);
  flex-wrap: wrap; gap: 0.5rem;
  max-width: 1200px; margin: 0 auto;
}
.footer-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--teal-dim);
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: 20px;
  padding: 0.25rem 0.8rem;
  font-size: 0.75rem;
  color: var(--teal);
  font-weight: 500;
}

/* ── HERO BASE ───────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 5% 5rem;
  position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 50%, rgba(6,182,212,0.10) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(245,158,11,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 90% 10%, rgba(16,185,129,0.05) 0%, transparent 55%);
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(6,182,212,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6,182,212,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

/* ── ANIMATIONS ──────────────────────────────── */
@keyframes fadeUp   { from { opacity:0; transform:translateY(28px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeDown { from { opacity:0; transform:translateY(-20px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn   { from { opacity:0; } to { opacity:1; } }
@keyframes float    { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-12px); } }
@keyframes pulse    { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(0.85); } }
@keyframes glow     { 0%,100% { box-shadow: 0 0 20px var(--teal-glow); } 50% { box-shadow: 0 0 50px var(--teal-glow); } }
@keyframes shimmer  {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}
@keyframes rotate   { from { transform:rotate(0deg); } to { transform:rotate(360deg); } }
@keyframes marquee  { from { transform:translateX(0); } to { transform:translateX(-50%); } }

.reveal { opacity:0; transform:translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── STAT GRID ───────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}
.stat-item {
  background: var(--bg2);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: background 0.3s;
}
.stat-item:hover { background: var(--bg3); }
.stat-val {
  font-family: var(--font-d);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--teal);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-label { font-size: 0.82rem; color: var(--muted); font-weight: 400; }

/* ── PAGE HERO (inner pages) ─────────────────── */
.page-hero {
  padding: 8rem 5% 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.page-hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(6,182,212,0.1) 0%, transparent 70%);
}
.page-hero h1 {
  font-family: var(--font-d);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--white);
  margin-bottom: 1.2rem;
  position: relative;
}
.page-hero p { font-size: 1.1rem; color: var(--muted); max-width: 560px; margin: 0 auto; font-weight: 300; position: relative; }

/* ── MARQUEE STRIP ───────────────────────────── */
.marquee-wrap { overflow: hidden; background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 1rem 0; }
.marquee-track { display: flex; gap: 3rem; width: max-content; animation: marquee 22s linear infinite; }
.marquee-item { font-family: var(--font-d); font-size: 0.82rem; font-weight: 600; color: var(--muted); white-space: nowrap; display: flex; align-items: center; gap: 0.5rem; letter-spacing: 0.08em; text-transform: uppercase; }
.marquee-item::after { content: '◆'; color: var(--teal); font-size: 0.5rem; }

/* ── BADGE ───────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border-radius: 100px; padding: 0.35rem 1rem;
  font-size: 0.8rem; font-weight: 500;
  margin-bottom: 1.5rem;
}
.badge-teal { background: var(--teal-dim); border: 1px solid rgba(6,182,212,0.25); color: var(--teal); }
.badge-gold { background: var(--gold-dim); border: 1px solid rgba(245,158,11,0.25); color: var(--gold); }
.badge-dot { width: 6px; height: 6px; background: currentColor; border-radius: 50%; animation: pulse 1.5s infinite; }

/* ── DIVIDER ─────────────────────────────────── */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); margin: 4rem 0; }

/* ── FORM ────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
label { font-size: 0.82rem; font-weight: 500; color: var(--muted); }
input, textarea, select {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--white);
  font-family: var(--font-b);
  font-size: 0.92rem;
  padding: 0.8rem 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
input::placeholder, textarea::placeholder { color: rgba(107,140,170,0.5); }
input:focus, textarea:focus, select:focus {
  border-color: rgba(6,182,212,0.5);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.08);
}
textarea { resize: vertical; }
select option { background: var(--bg2); }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  section { padding: 4rem 5%; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 7rem 5% 4rem; }
  .page-hero { padding: 7rem 5% 4rem; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}