/* ==========================================================================
   Atlas AI Works — brand design system
   Palette: navy → royal blue → gold
   ========================================================================== */

:root {
  --navy-900: #071834;
  --navy-800: #0C2E5A;
  --navy-700: #123f78;
  --blue-500: #2472C8;
  --blue-400: #3A82D2;
  --gold-500: #E0A82E;
  --gold-400: #F0C24B;
  --gold-300: #F6D67E;

  /* light theme (default) */
  --bg:        #F5F8FC;
  --bg-soft:   #FFFFFF;
  --bg-elev:   #FFFFFF;
  --surface:   rgba(255,255,255,0.72);
  --border:    rgba(12,46,90,0.12);
  --border-strong: rgba(12,46,90,0.22);
  --text:      #0C2140;
  --text-soft: #46587A;
  --text-mut:  #7385a3;
  --heading:   #081a33;

  --accent:    var(--blue-500);
  --accent-2:  var(--gold-500);

  --grad-brand: linear-gradient(115deg, var(--navy-800) 0%, var(--blue-500) 48%, var(--gold-500) 100%);
  --grad-gold:  linear-gradient(120deg, var(--gold-400), var(--gold-500));
  --grad-blue:  linear-gradient(120deg, var(--blue-400), var(--navy-700));

  --shadow-sm: 0 2px 8px rgba(9,30,66,0.08);
  --shadow:    0 12px 34px -10px rgba(9,30,66,0.22);
  --shadow-lg: 0 30px 70px -22px rgba(9,30,66,0.38);
  --ring:      0 0 0 4px rgba(36,114,200,0.18);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --maxw: 1180px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:        #060F20;
    --bg-soft:   #0A1730;
    --bg-elev:   #0E1D3B;
    --surface:   rgba(16,32,62,0.66);
    --border:    rgba(148,178,222,0.14);
    --border-strong: rgba(148,178,222,0.28);
    --text:      #E7EEF9;
    --text-soft: #A9BAD6;
    --text-mut:  #7488ab;
    --heading:   #F3F7FD;
    --shadow:    0 18px 44px -12px rgba(0,0,0,0.6);
    --shadow-lg: 0 40px 90px -24px rgba(0,0,0,0.7);
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.4);
  }
}

:root[data-theme="dark"] {
  --bg:        #060F20;
  --bg-soft:   #0A1730;
  --bg-elev:   #0E1D3B;
  --surface:   rgba(16,32,62,0.66);
  --border:    rgba(148,178,222,0.14);
  --border-strong: rgba(148,178,222,0.28);
  --text:      #E7EEF9;
  --text-soft: #A9BAD6;
  --text-mut:  #7488ab;
  --heading:   #F3F7FD;
  --shadow:    0 18px 44px -12px rgba(0,0,0,0.6);
  --shadow-lg: 0 40px 90px -24px rgba(0,0,0,0.7);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.4);
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3,h4 { color: var(--heading); line-height: 1.12; margin: 0 0 .5em; letter-spacing: -0.02em; font-weight: 800; }
p { margin: 0 0 1em; }
a { color: var(--accent); text-decoration: none; }
img, svg { max-width: 100%; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue-500);
}
.eyebrow::before { content:""; width: 22px; height: 2px; background: var(--grad-gold); border-radius: 2px; }
.gold-text { background: var(--grad-gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
.blue-text { background: var(--grad-blue); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font: inherit; font-weight: 700; font-size: .98rem;
  padding: 14px 26px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .18s ease, box-shadow .2s ease, background .2s ease, color .2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--grad-gold); color: #2a1c00; box-shadow: 0 10px 26px -8px rgba(224,168,46,.6); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px -8px rgba(224,168,46,.7); }
.btn-dark { background: var(--navy-800); color: #fff; }
.btn-dark:hover { transform: translateY(-2px); background: var(--navy-700); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-500); }
.btn-lg { padding: 17px 34px; font-size: 1.05rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; color: var(--heading); letter-spacing: -.01em; }
.brand svg, .brand img { width: 40px; height: 40px; }
.brand .bt { font-size: 1.12rem; line-height: 1; }
.brand .bt small { display:block; font-size:.62rem; letter-spacing:.34em; color: var(--gold-500); font-weight:700; margin-top:3px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text-soft); font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--accent); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.menu-btn { display:none; background:none;border:none;color:var(--text);cursor:pointer; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-cta .btn-ghost { display:none; }
}

/* ---------- hero ---------- */
.hero { position: relative; padding: 88px 0 96px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; }
.orb.a { width: 520px; height: 520px; background: radial-gradient(circle, #2472C8, transparent 66%); top: -160px; right: -120px; }
.orb.b { width: 460px; height: 460px; background: radial-gradient(circle, #E0A82E, transparent 66%); bottom: -170px; left: -120px; opacity:.42; }
.grid-lines {
  position:absolute; inset:0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 78%);
  opacity:.6;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.9rem); margin-bottom: .35em; }
.hero .lead { font-size: 1.2rem; color: var(--text-soft); max-width: 46ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.pill {
  display:inline-flex; align-items:center; gap:8px; margin-bottom:22px;
  padding:7px 15px; border-radius:999px; font-size:.82rem; font-weight:600;
  background: var(--surface); border:1px solid var(--border); color: var(--text-soft);
  backdrop-filter: blur(8px);
}
.pill .dot { width:8px;height:8px;border-radius:50%; background: #2ecc71; box-shadow:0 0 0 4px rgba(46,204,113,.2); }
.hero-visual { display:flex; justify-content:center; align-items:center; position:relative; }
.hero-card {
  position:relative; width: 100%; max-width: 380px;
  background: var(--surface); border:1px solid var(--border); border-radius: var(--r-xl);
  padding: 30px; box-shadow: var(--shadow-lg); backdrop-filter: blur(16px);
}
.hero-logo-wrap { position:relative; display:flex; justify-content:center; margin-bottom: 18px; }
.hero-logo-wrap svg, .hero-logo-wrap img { width: 190px; height: 190px; filter: drop-shadow(0 20px 40px rgba(12,46,90,.28)); animation: floaty 6s ease-in-out infinite; }
@keyframes floaty { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.hero-card .meta { display:flex; justify-content:space-between; gap:10px; text-align:center; }
.hero-card .meta div { flex:1; }
.hero-card .meta b { display:block; font-size:1.4rem; color:var(--heading); }
.hero-card .meta span { font-size:.74rem; color:var(--text-mut); text-transform:uppercase; letter-spacing:.08em; }

/* ---------- marquee / trust ---------- */
.trust { border-block:1px solid var(--border); background: var(--bg-soft); }
.trust .container { display:flex; align-items:center; gap:36px; flex-wrap:wrap; justify-content:center; padding-block:22px; }
.trust span { color: var(--text-mut); font-weight:700; letter-spacing:.04em; font-size:.95rem; }

/* ---------- section ---------- */
.section { padding: 88px 0; }
.section-head { max-width: 660px; margin: 0 auto 54px; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.section-head p { color: var(--text-soft); font-size: 1.08rem; }

/* ---------- services grid ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 30px; transition: transform .2s, box-shadow .2s, border-color .2s;
  overflow: hidden;
}
.card::after { content:""; position:absolute; inset:0 0 auto 0; height:3px; background: var(--grad-brand); opacity:0; transition:opacity .2s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.card:hover::after { opacity:1; }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display:grid; place-items:center;
  margin-bottom: 18px; background: linear-gradient(135deg, rgba(36,114,200,.14), rgba(224,168,46,.14));
  color: var(--blue-500); font-size: 1.5rem;
}
.card h3 { font-size: 1.2rem; }
.card p { color: var(--text-soft); font-size: .96rem; margin: 0; }

/* ---------- process ---------- */
.steps { display:grid; grid-template-columns: repeat(4,1fr); gap: 20px; counter-reset: s; }
.step { position:relative; padding: 26px; border-radius: var(--r); background: var(--bg-elev); border:1px solid var(--border); }
.step .n {
  counter-increment: s; font-weight:800; font-size:.9rem; width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center; background:var(--grad-blue); color:#fff; margin-bottom:14px;
}
.step .n::before { content: "0" counter(s); }
.step h4 { font-size:1.05rem; margin-bottom:.3em; }
.step p { font-size:.9rem; color: var(--text-soft); margin:0; }

/* ---------- CTA / lead form ---------- */
.leadband {
  position: relative; overflow:hidden;
  background: var(--grad-brand); color:#fff; border-radius: var(--r-xl);
  padding: 54px; box-shadow: var(--shadow-lg);
}
.leadband::before { content:""; position:absolute; inset:0; background: url("assets/logo.svg") no-repeat right -60px center; background-size: 340px; opacity:.08; }
.leadband h2 { color:#fff; font-size: clamp(1.8rem,3.4vw,2.5rem); }
.leadband p { color: rgba(255,255,255,.86); }
.lead-grid { position:relative; display:grid; grid-template-columns: 1fr 1fr; gap:40px; align-items:center; }
.form-card { background: var(--bg-elev); color: var(--text); border-radius: var(--r-lg); padding: 30px; box-shadow: var(--shadow); }
.field { margin-bottom: 15px; }
.field label { display:block; font-size:.82rem; font-weight:700; color: var(--text-soft); margin-bottom:6px; }
.field input, .field select, .field textarea {
  width:100%; font:inherit; padding: 12px 14px; border-radius: var(--r-sm);
  border:1px solid var(--border-strong); background: var(--bg-soft); color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline:none; border-color: var(--blue-500); box-shadow: var(--ring); }
.field.row { display:flex; gap:14px; }
.field.row > div { flex:1; }
.form-note { font-size:.8rem; color: var(--text-mut); margin: 10px 0 0; }
.form-ok { display:none; text-align:center; padding: 18px; }
.form-ok .check { width:56px;height:56px;border-radius:50%;background:var(--grad-gold);display:grid;place-items:center;margin:0 auto 14px;font-size:1.6rem;color:#2a1c00; }

.bullets { list-style:none; margin: 20px 0 0; padding:0; }
.bullets li { display:flex; gap:12px; align-items:flex-start; margin-bottom:14px; color: rgba(255,255,255,.92); font-weight:500; }
.bullets .ck { flex:none; width:24px;height:24px;border-radius:7px;background:rgba(255,255,255,.16);display:grid;place-items:center;color:var(--gold-300);font-weight:800; }

/* ---------- footer ---------- */
.footer { background: var(--bg-soft); border-top:1px solid var(--border); padding: 54px 0 30px; margin-top: 20px; }
.footer-grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer h5 { font-size:.8rem; text-transform:uppercase; letter-spacing:.1em; color: var(--text-mut); margin:0 0 14px; }
.footer a { display:block; color: var(--text-soft); font-weight:500; padding:5px 0; font-size:.94rem; }
.footer a:hover { color: var(--accent); }
.footer .muted { color: var(--text-mut); font-size:.9rem; max-width: 34ch; }
.footer-bottom { display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; border-top:1px solid var(--border); margin-top:36px; padding-top:22px; color: var(--text-mut); font-size:.86rem; }

/* ---------- get started page ---------- */
.gs-hero { padding: 64px 0 30px; text-align:center; }
.gs-hero h1 { font-size: clamp(2rem,4.4vw,3.2rem); }
.gs-hero p { font-size:1.15rem; color:var(--text-soft); max-width: 52ch; margin-inline:auto; }
.gs-grid { display:grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items:start; padding-bottom: 80px; }
@media (max-width: 900px){ .gs-grid { grid-template-columns: 1fr; } }
.panel { background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow); overflow:hidden; }
.panel-head { padding: 20px 24px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:12px; }
.panel-head h3 { margin:0; font-size:1.1rem; }
.panel-body { padding: 24px; }

/* ---------- reveal animation ---------- */
.reveal { opacity:0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity:1; transform:none; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order:-1; }
  .cards { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .lead-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .cards, .steps, .footer-grid { grid-template-columns: 1fr; }
  .leadband { padding: 30px; }
  .field.row { flex-direction:column; gap:0; }
}