/* ===========================================================
   GSPANN.AI — Enterprise AI Services
   Design system + layout
   =========================================================== */

:root {
  --bg:        #0a0e1a;
  --bg-soft:   #0f1525;
  --surface:   #141b2e;
  --surface-2: #1b2540;
  --border:    rgba(255, 255, 255, 0.08);
  --border-2:  rgba(255, 255, 255, 0.14);

  --text:      #eef2ff;
  --muted:     #9aa6c4;
  --faint:     #6b779a;

  --brand:     #6366f1;   /* indigo */
  --brand-2:   #22d3ee;   /* cyan   */
  --accent:    #a855f7;   /* violet */
  --good:      #34d399;

  --grad: linear-gradient(135deg, var(--brand) 0%, var(--accent) 50%, var(--brand-2) 100%);
  --grad-soft: linear-gradient(135deg, rgba(99,102,241,.18), rgba(34,211,238,.10));

  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 20px 50px -20px rgba(0,0,0,.6);
  --maxw:      1180px;
  --ease:      cubic-bezier(.22,.61,.36,1);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient background glows */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60rem 60rem at 80% -10%, rgba(99,102,241,.20), transparent 60%),
    radial-gradient(50rem 50rem at -10% 20%, rgba(34,211,238,.12), transparent 55%),
    radial-gradient(40rem 40rem at 50% 120%, rgba(168,85,247,.15), transparent 60%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1rem; }

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

.section { padding: clamp(64px, 9vw, 120px) 0; position: relative; }
.section-head { max-width: 720px; margin: 0 auto clamp(40px, 6vw, 64px); text-align: center; }
.section-head p { color: var(--muted); font-size: 1.08rem; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-2);
  margin-bottom: 14px;
  padding: 5px 12px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  background: var(--grad-soft);
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55em;
  font-weight: 600;
  font-size: .98rem;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s, border-color .2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(99,102,241,.7);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(99,102,241,.85); }
.btn-ghost {
  background: rgba(255,255,255,.04);
  border-color: var(--border-2);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,.09); transform: translateY(-2px); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10,14,26,.78);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; }
.brand .logo {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--grad);
  display: grid; place-items: center;
  font-weight: 800; color: #fff; font-size: .95rem;
  box-shadow: 0 6px 18px -6px rgba(99,102,241,.8);
}
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: .96rem; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; border-radius: 10px;
  border: 1px solid var(--border-2);
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text); margin: 4px auto; transition: .3s; }

/* ---------- Hero ---------- */
.hero { padding: 160px 0 80px; text-align: center; }
.hero .badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .85rem; color: var(--muted);
  padding: 7px 16px; border-radius: 999px;
  border: 1px solid var(--border-2); background: rgba(255,255,255,.03);
  margin-bottom: 26px;
}
.hero .badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 12px var(--good); }
.hero h1 { max-width: 16ch; margin-inline: auto; }
.hero .lede { max-width: 60ch; margin: 18px auto 32px; color: var(--muted); font-size: 1.2rem; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-logos {
  margin-top: 64px;
  display: flex; flex-wrap: wrap; gap: 14px 40px; justify-content: center; align-items: center;
  color: var(--faint); font-weight: 600; font-size: .95rem; letter-spacing: .02em;
}
.hero-logos span { opacity: .8; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat {
  text-align: center; padding: 28px 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat .num { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; }
.stat .label { color: var(--muted); font-size: .95rem; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform .3s var(--ease), border-color .3s, background .3s;
  position: relative;
  overflow: hidden;
}
.card:hover { transform: translateY(-6px); border-color: var(--border-2); background: var(--surface-2); }
.card .icon {
  width: 50px; height: 50px; border-radius: 12px;
  background: var(--grad-soft); border: 1px solid var(--border-2);
  display: grid; place-items: center; margin-bottom: 18px;
  font-size: 1.4rem;
}
.card h3 { margin-bottom: .4em; }
.card p { color: var(--muted); margin: 0; font-size: .98rem; }
.card .tag-list { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.card .tag-list li { font-size: .8rem; color: var(--brand-2); padding: 4px 10px; border: 1px solid var(--border-2); border-radius: 999px; }

/* Industries */
.industry {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 22px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); transition: border-color .3s, transform .3s var(--ease);
}
.industry:hover { border-color: var(--border-2); transform: translateX(4px); }
.industry .ico { font-size: 1.5rem; }
.industry strong { display: block; }
.industry span { color: var(--muted); font-size: .9rem; }

/* ---------- Process / timeline ---------- */
.steps { counter-reset: step; display: grid; gap: 20px; grid-template-columns: repeat(4,1fr); }
.step {
  padding: 28px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); position: relative;
}
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-weight: 800; font-size: 1.6rem; background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.step h3 { margin: 8px 0 6px; }
.step p { color: var(--muted); font-size: .94rem; margin: 0; }

/* ---------- Feature split ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.feature-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 18px; }
.feature-list li { display: flex; gap: 14px; }
.feature-list .check {
  flex: none; width: 26px; height: 26px; border-radius: 8px;
  background: var(--grad-soft); border: 1px solid var(--border-2);
  display: grid; place-items: center; color: var(--good); font-weight: 700; font-size: .85rem;
}
.feature-list strong { display: block; }
.feature-list span { color: var(--muted); font-size: .95rem; }
.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
}
.panel .bar { display: flex; gap: 8px; margin-bottom: 20px; }
.panel .bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--surface-2); display: inline-block; }
.panel pre {
  margin: 0; font-family: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
  font-size: .86rem; line-height: 1.7; color: #cbd5f5; overflow-x: auto;
}
.panel pre .k { color: var(--brand-2); }
.panel pre .s { color: var(--good); }
.panel pre .c { color: var(--faint); }

/* ---------- Showcase image ---------- */
.showcase-img {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow);
}
.showcase-img img, .showcase-img picture { width: 100%; height: auto; display: block; }
.showcase-img::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 90px rgba(34,211,238,.20);
  pointer-events: none;
}
.showcase-img .glow {
  position: absolute; inset: -3px;
  background: var(--grad);
  filter: blur(44px); opacity: .28; z-index: -1;
}

/* Competency row under the showcase */
.competencies { margin-top: clamp(40px, 6vw, 56px); }
.competency {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 24px 26px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .3s, transform .3s var(--ease), background .3s;
}
.competency:hover { border-color: var(--border-2); transform: translateY(-4px); background: var(--surface-2); }
.competency .ico {
  flex: none; width: 46px; height: 46px; border-radius: 12px;
  background: var(--grad-soft); border: 1px solid var(--border-2);
  display: grid; place-items: center; font-size: 1.35rem;
}
.competency strong { display: block; margin-bottom: 2px; }
.competency span { color: var(--muted); font-size: .94rem; }

/* ---------- Testimonials ---------- */
.quote {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px;
}
.quote p { font-size: 1.05rem; color: var(--text); }
.quote .who { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.quote .avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; font-weight: 700; }
.quote .who strong { display: block; font-size: .95rem; }
.quote .who span { color: var(--muted); font-size: .85rem; }

/* ---------- CTA band ---------- */
.cta-band {
  text-align: center;
  background: var(--grad-soft);
  border: 1px solid var(--border-2);
  border-radius: 24px;
  padding: clamp(40px, 6vw, 64px);
}
.cta-band h2 { max-width: 22ch; margin-inline: auto; }
.cta-band p { color: var(--muted); max-width: 52ch; margin: 0 auto 28px; }

/* ---------- Contact ---------- */
.contact-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.contact-info h2 { margin-bottom: .3em; }
.contact-info p { color: var(--muted); }
.contact-info .item { display: flex; gap: 14px; align-items: center; margin-top: 22px; }
.contact-info .item .ico { width: 42px; height: 42px; border-radius: 10px; background: var(--grad-soft); border: 1px solid var(--border-2); display: grid; place-items: center; }
.contact-info .item span { color: var(--muted); font-size: .85rem; }
.contact-info .item a, .contact-info .item strong { display: block; }

form.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .88rem; font-weight: 500; margin-bottom: 7px; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--bg-soft); border: 1px solid var(--border-2); color: var(--text);
  font-family: inherit; font-size: .96rem; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(99,102,241,.25);
}
.field textarea { resize: vertical; min-height: 120px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-note { font-size: .82rem; color: var(--faint); margin: 4px 0 0; }
.form-status { margin-top: 14px; font-size: .92rem; padding: 12px 14px; border-radius: var(--radius-sm); display: none; }
.form-status.ok  { display: block; background: rgba(52,211,153,.12); border: 1px solid rgba(52,211,153,.4); color: var(--good); }
.form-status.err { display: block; background: rgba(248,113,113,.12); border: 1px solid rgba(248,113,113,.4); color: #fca5a5; }

/* ---------- Deploy tab ---------- */
.deploy-form { max-width: 760px; margin: 0 auto; }
.deploy-step { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin: 28px 0 14px; }
.deploy-step:first-of-type { margin-top: 0; }
.choice-grid { display: grid; gap: 14px; margin-bottom: 6px; }
.choice-grid-3 { grid-template-columns: repeat(3, 1fr); }
.choice-grid-2 { grid-template-columns: repeat(2, 1fr); }
.choice-card {
  display: flex; flex-direction: column; gap: 4px; text-align: left;
  padding: 18px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); font: inherit; cursor: pointer;
  transition: transform .15s var(--ease), border-color .2s, background .2s;
}
.choice-card:hover { transform: translateY(-3px); border-color: var(--border-2); }
.choice-card .ico { font-size: 1.5rem; }
.choice-card strong { font-size: 1rem; }
.choice-card span:last-child { color: var(--muted); font-size: .85rem; }
.choice-card.selected { border-color: var(--brand-2); background: var(--surface-2); box-shadow: 0 0 0 1px var(--brand-2) inset; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 64px 0 32px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid p { color: var(--muted); font-size: .92rem; max-width: 34ch; }
.footer-col h4 { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); margin: 0 0 16px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--muted); font-size: .94rem; transition: color .2s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--faint); font-size: .88rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .steps { grid-template-columns: repeat(2,1fr); }
  .split, .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 720px) {
  .nav-links, .nav-actions .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 72px; left: 0; right: 0;
    background: rgba(10,14,26,.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border); padding: 18px 24px;
  }
  .nav-links.open a { padding: 10px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .choice-grid-3, .choice-grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 130px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}