/* ==========================================================================
   Global Smart System Limited — Design System
   Color: Ink Navy / Paper / Slate / Signal Teal / Warm Sand / Line Gray
   Type: Fraunces (display) + Inter (body) + IBM Plex Mono (utility)
   ========================================================================== */

:root{
  --ink:        #0B1B2B;
  --ink-soft:   #13273D;
  --paper:      #F7F8FA;
  --paper-raised:#FFFFFF;
  --slate:      #5B6B7C;
  --slate-mute: #8B97A4;
  --teal:       #0E7C7B;
  --teal-deep:  #095B5A;
  --sand:       #E4DCC8;
  --line:       #E3E6EA;
  --line-dark:  rgba(247,248,250,0.14);
  --danger:     #B3452C;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --max-width: 1180px;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; line-height:1.12; margin:0; letter-spacing:-0.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }

:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
  border-radius:4px;
}

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

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--teal-deep);
  display:inline-flex;
  align-items:center;
  gap:9px;
}
.eyebrow::before{
  content:'';
  width:22px; height:1px;
  background:var(--teal-deep);
  display:inline-block;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  padding:14px 26px;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{ background:var(--ink); color:var(--paper); }
.btn-primary:hover{ transform:translateY(-1px); box-shadow:0 12px 28px -12px rgba(11,27,43,0.45); }
.btn-teal{ background:var(--teal); color:#fff; }
.btn-teal:hover{ transform:translateY(-1px); box-shadow:0 12px 28px -12px rgba(14,124,123,0.5); }
.btn-outline{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn-outline:hover{ border-color:var(--ink); }
.btn-outline-light{ background:transparent; color:#fff; border-color:rgba(255,255,255,0.35); }
.btn-outline-light:hover{ border-color:#fff; }
.btn-block{ width:100%; }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(247,248,250,0.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-display);
  font-weight:600; font-size:19px;
  text-decoration:none; color:var(--ink);
}
.brand-mark{
  width:30px; height:30px;
  border-radius:8px;
  background:linear-gradient(135deg, var(--teal) 0%, var(--ink) 100%);
  flex-shrink:0;
  position:relative;
}
.brand-mark::after{
  content:'';
  position:absolute; left:50%; top:50%;
  width:12px; height:1px; background:#fff;
  transform:translate(-50%,-50%) rotate(-35deg);
  box-shadow:0 0 0 1.5px rgba(255,255,255,0.0);
}
.nav-links{
  display:flex; align-items:center; gap:34px;
}
.nav-links a{
  font-size:14.5px; color:var(--slate); text-decoration:none;
  transition:color .2s;
}
.nav-links a:hover, .nav-links a[aria-current="page"]{ color:var(--ink); }
.nav-actions{ display:flex; align-items:center; gap:12px; }
.nav-toggle{
  display:none;
  background:none; border:none; cursor:pointer;
  width:40px; height:40px; align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; display:block; width:20px; height:2px; background:var(--ink);
  position:relative; transition:transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

@media (max-width: 860px){
  .nav-links{
    position:fixed; inset:76px 0 0 0;
    background:var(--paper);
    flex-direction:column; align-items:flex-start;
    padding:32px 28px; gap:22px;
    transform:translateY(-8px);
    opacity:0; pointer-events:none;
    transition:opacity .25s var(--ease), transform .25s var(--ease);
  }
  .nav-links a{ font-size:18px; }
  body.nav-open .nav-links{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .nav-toggle{ display:flex; }
  .nav-actions .btn{ display:none; }
  body.nav-open .nav-actions .btn{ display:inline-flex; }
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1100px 480px at 82% -10%, rgba(14,124,123,0.35), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 100%);
  color:#fff;
  padding:96px 0 120px;
}
.route-line{
  position:absolute; inset:0;
  pointer-events:none;
  opacity:0.5;
}
.hero-grid{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:64px; align-items:center;
  position:relative; z-index:1;
}
.hero h1{
  font-size:clamp(34px, 4.4vw, 58px);
  color:#fff;
  max-width:620px;
}
.hero .lede{
  margin-top:20px;
  font-size:17px;
  color:rgba(247,248,250,0.72);
  max-width:480px;
  line-height:1.65;
}
.hero-cta-row{
  margin-top:36px; display:flex; gap:14px; flex-wrap:wrap;
}
.hero-badges{
  margin-top:44px; display:flex; gap:28px; flex-wrap:wrap;
}
.hero-badge{
  font-size:12.5px; color:rgba(247,248,250,0.55);
  font-family:var(--font-mono); letter-spacing:0.04em;
}
.hero-panel{
  position:relative;
}
.route-card{
  background:rgba(247,248,250,0.06);
  border:1px solid rgba(247,248,250,0.14);
  border-radius:var(--radius-l);
  padding:30px;
  backdrop-filter:blur(6px);
}
.route-card-row{
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 0;
  border-bottom:1px dashed rgba(247,248,250,0.18);
}
.route-card-row:last-child{ border-bottom:none; }
.route-card-label{ font-size:12px; color:rgba(247,248,250,0.5); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:0.08em; }
.route-card-value{ font-family:var(--font-display); font-size:17px; }
.route-dots{
  display:flex; align-items:center; gap:6px; margin:20px 0;
}
.route-dot{ width:6px; height:6px; border-radius:50%; background:var(--teal); }
.route-dot.faint{ background:rgba(247,248,250,0.25); }
.route-line-mid{ flex:1; height:1px; background:repeating-linear-gradient(90deg, rgba(247,248,250,0.3) 0 6px, transparent 6px 12px); }

/* ---------- Sections ---------- */
section{ padding:104px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-title{ font-size:clamp(28px,3.2vw,40px); margin-top:14px; }
.section-lede{ margin-top:16px; color:var(--slate); font-size:16px; max-width:560px; line-height:1.7; }

.divider{
  height:1px;
  background:repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
  margin:0;
}

/* ---------- Service cards (Book Flights / Book Hotels) ---------- */
.service-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:24px;
}
.service-card{
  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:40px;
  text-decoration:none; color:var(--ink);
  position:relative; overflow:hidden;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.service-card:hover{
  transform:translateY(-4px);
  box-shadow:0 32px 60px -30px rgba(11,27,43,0.22);
  border-color:rgba(14,124,123,0.35);
}
.service-card-icon{
  width:46px; height:46px; border-radius:12px;
  background:var(--ink);
  margin-bottom:26px;
  position:relative;
}
.service-card h3{ font-size:23px; }
.service-card p{ margin-top:10px; color:var(--slate); font-size:15px; line-height:1.65; }
.service-card-cta{
  margin-top:26px; display:inline-flex; align-items:center; gap:8px;
  font-size:14px; font-weight:600; color:var(--teal-deep);
}
.service-card-cta svg{ transition:transform .25s var(--ease); }
.service-card:hover .service-card-cta svg{ transform:translateX(4px); }

@media (max-width:760px){
  .service-grid{ grid-template-columns:1fr; }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-panel{ order:-1; }
}

/* ---------- Feature grid (Why Choose Us) ---------- */
.feature-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  overflow:hidden;
}
.feature-item{
  background:var(--paper-raised); padding:34px 30px;
}
.feature-item-num{
  font-family:var(--font-mono); font-size:12px; color:var(--slate-mute);
  letter-spacing:0.08em;
}
.feature-item h4{ font-size:18px; margin-top:16px; }
.feature-item p{ margin-top:10px; font-size:14.5px; color:var(--slate); line-height:1.65; }

@media (max-width:860px){
  .feature-grid{ grid-template-columns:1fr; }
}

/* ---------- Booking engine placeholder (white-label integration point) ---------- */
.booking-placeholder{
  border:1.5px dashed rgba(11,27,43,0.22);
  border-radius:var(--radius-l);
  background:
    repeating-linear-gradient(135deg, rgba(11,27,43,0.025) 0 2px, transparent 2px 14px),
    var(--paper-raised);
  padding:64px 40px;
  text-align:center;
  position:relative;
}
.booking-placeholder-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:0.1em; text-transform:uppercase;
  color:var(--teal-deep);
  background:rgba(14,124,123,0.08);
  padding:7px 14px; border-radius:999px;
}
.booking-placeholder h3{ font-size:24px; margin-top:22px; }
.booking-placeholder p{ margin-top:12px; color:var(--slate); max-width:460px; margin-left:auto; margin-right:auto; }
.booking-placeholder-fields{
  margin-top:36px; display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden;
  max-width:760px; margin-left:auto; margin-right:auto;
  opacity:0.55;
}
.booking-placeholder-field{ background:var(--paper-raised); padding:18px 16px; text-align:left; }
.booking-placeholder-field span{ display:block; font-size:11px; color:var(--slate-mute); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.06em; }
.booking-placeholder-field strong{ display:block; margin-top:6px; font-weight:500; font-size:14.5px; color:var(--slate); }

@media (max-width:760px){
  .booking-placeholder-fields{ grid-template-columns:1fr 1fr; }
}

/* Developer integration marker (visible comment style, non-obtrusive) */
.integration-marker{
  margin-top:22px;
  font-family:var(--font-mono); font-size:11.5px; color:var(--slate-mute);
  border-top:1px solid var(--line); padding-top:16px; display:inline-block;
}

/* ---------- Trust strip ---------- */
.trust-strip{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:36px 0;
}
.trust-row{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:24px; }
.trust-item{ display:flex; align-items:center; gap:12px; }
.trust-item-dot{ width:8px; height:8px; border-radius:50%; background:var(--teal); flex-shrink:0; }
.trust-item span{ font-size:13.5px; color:var(--slate); }

/* ---------- Content blocks (About) ---------- */
.split{
  display:grid; grid-template-columns:0.9fr 1.1fr; gap:64px; align-items:start;
}
.split-visual{
  border-radius:var(--radius-l);
  background:linear-gradient(155deg, var(--ink) 0%, var(--teal-deep) 130%);
  min-height:360px;
  position:relative; overflow:hidden;
}
@media (max-width:860px){ .split{ grid-template-columns:1fr; } }

.stat-block{ display:grid; grid-template-columns:repeat(3,1fr); gap:32px; margin-top:44px; }
.stat-block .num{ font-family:var(--font-display); font-size:32px; }
.stat-block .label{ margin-top:6px; font-size:13px; color:var(--slate); }
@media (max-width:640px){ .stat-block{ grid-template-columns:1fr; } }

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink); color:#fff; border-radius:var(--radius-l);
  padding:64px 48px; text-align:center;
  margin:0 auto;
}
.cta-band h2{ color:#fff; font-size:clamp(26px,3vw,36px); }
.cta-band p{ margin-top:14px; color:rgba(247,248,250,0.68); }
.cta-band .hero-cta-row{ justify-content:center; margin-top:30px; }

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink); color:rgba(247,248,250,0.7);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
  padding-bottom:48px; border-bottom:1px solid rgba(247,248,250,0.12);
}
.footer-brand .brand{ color:#fff; }
.footer-brand p{ margin-top:18px; font-size:13.5px; line-height:1.7; max-width:280px; color:rgba(247,248,250,0.55); }
.footer-col h5{
  font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:0.1em;
  color:rgba(247,248,250,0.45); margin-bottom:18px; font-weight:500;
}
.footer-col ul li{ margin-bottom:11px; }
.footer-col a{ font-size:14px; color:rgba(247,248,250,0.75); text-decoration:none; }
.footer-col a:hover{ color:#fff; }
.footer-legal{
  margin-top:32px; padding-top:0; font-size:12.5px; line-height:1.8; color:rgba(247,248,250,0.45);
}
.footer-legal strong{ color:rgba(247,248,250,0.7); font-weight:600; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
  margin-top:32px; font-size:12.5px; color:rgba(247,248,250,0.4);
}
.footer-bottom-links{ display:flex; gap:20px; flex-wrap:wrap; }
.footer-bottom-links a{ color:rgba(247,248,250,0.4); text-decoration:none; }
.footer-bottom-links a:hover{ color:#fff; }
.placeholder-flag{
  color:#E9B44C; font-family:var(--font-mono); font-size:11px;
}

@media (max-width:900px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){
  .footer-grid{ grid-template-columns:1fr; }
}

/* ---------- Legal / static pages ---------- */
.page-hero{
  background:var(--ink); color:#fff; padding:72px 0 56px;
}
.page-hero h1{ color:#fff; font-size:clamp(28px,3.6vw,42px); }
.page-hero .updated{ margin-top:14px; font-family:var(--font-mono); font-size:12.5px; color:rgba(247,248,250,0.5); }

.legal-body{
  max-width:760px; padding:72px 28px;
  margin:0 auto;
}
.legal-body h2{ font-size:22px; margin-top:44px; margin-bottom:14px; }
.legal-body h2:first-child{ margin-top:0; }
.legal-body p{ margin-bottom:16px; color:var(--slate); font-size:15.5px; line-height:1.75; }
.legal-body ul{ margin-bottom:16px; padding-left:20px; list-style:disc; }
.legal-body li{ color:var(--slate); font-size:15.5px; line-height:1.75; margin-bottom:8px; }
.legal-nav{
  display:flex; flex-wrap:wrap; gap:10px; margin-bottom:8px;
}
.legal-nav a{
  font-size:13px; padding:8px 14px; border-radius:999px; border:1px solid var(--line);
  text-decoration:none; color:var(--slate);
}
.legal-nav a[aria-current="page"]{ background:var(--ink); color:#fff; border-color:var(--ink); }

.callout{
  background:rgba(233,180,76,0.1);
  border:1px solid rgba(233,180,76,0.35);
  border-radius:var(--radius-m);
  padding:18px 20px;
  font-size:14px; color:#7a5a1a;
  margin-bottom:24px;
}

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; }
.form-field{ margin-bottom:20px; }
.form-field label{ display:block; font-size:13px; font-weight:600; margin-bottom:8px; }
.form-field input, .form-field select, .form-field textarea{
  width:100%; padding:13px 15px; border-radius:var(--radius-s);
  border:1px solid var(--line); font-family:var(--font-body); font-size:14.5px;
  background:var(--paper-raised); color:var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{
  outline:2px solid var(--teal); outline-offset:1px; border-color:var(--teal);
}
.form-note{ font-size:12.5px; color:var(--slate-mute); margin-top:8px; }
.contact-info-item{ display:flex; gap:16px; padding:20px 0; border-bottom:1px solid var(--line); }
.contact-info-item:first-child{ padding-top:0; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--ink); color:#fff; padding:12px 18px; border-radius:0 0 8px 0;
  z-index:100; text-decoration:none; font-size:14px;
}
.skip-link:focus{ left:0; top:0; }