/* ==========================================================================
   Abontu — dark, modern one-page theme
   ========================================================================== */

:root {
  --bg: #070a12;
  --bg-alt: #0a0f1b;
  --surface: #0e1424;
  --surface-2: #131b30;
  --border: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(148, 163, 184, 0.28);
  --text: #e8edf7;
  --muted: #9aa7bd;
  --accent: #22d3ee;
  --accent-2: #8b5cf6;
  --grad: linear-gradient(120deg, #22d3ee 0%, #6d8bff 50%, #8b5cf6 100%);
  --radius: 16px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-head: "Space Grotesk", "Inter", system-ui, sans-serif;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; letter-spacing: -0.02em; }

.container { width: min(1160px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 40px); }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

.skip-link {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--accent); color: #04121a; padding: 8px 14px; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { left: 8px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; border: 1px solid transparent;
  font: 600 0.95rem/1 var(--font-body); cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-primary { background: var(--grad); color: #04121a; box-shadow: 0 8px 30px -8px rgba(34, 211, 238, 0.55); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px -8px rgba(139, 92, 246, 0.6); }
.btn-ghost { border-color: var(--border-strong); color: var(--text); background: rgba(255, 255, 255, 0.03); }
.btn-ghost:hover { border-color: var(--accent); background: rgba(34, 211, 238, 0.08); }
.btn-sm { padding: 10px 18px; font-size: 0.875rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h);
  background: rgba(7, 10, 18, 0.7); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--border); background: rgba(7, 10, 18, 0.88); }
.nav { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font: 700 1.35rem var(--font-head); letter-spacing: -0.02em; }
.brand-mark { width: 32px; height: 32px; }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a:not(.btn) { color: var(--muted); font-size: 0.925rem; font-weight: 500; transition: color .2s; }
.nav-links a:not(.btn):hover { color: var(--text); }

.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: calc(var(--header-h) + 80px) 0 96px; }
.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% 10%, rgba(34, 211, 238, 0.16), transparent 70%),
    radial-gradient(700px 500px at 90% 30%, rgba(139, 92, 246, 0.2), transparent 70%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 75%);
          mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 75%);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px;
  border: 1px solid var(--border-strong); border-radius: 999px;
  font-size: 0.8rem; font-weight: 500; color: var(--muted); background: rgba(255, 255, 255, 0.03);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6); animation: pulse 2.2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(34, 211, 238, 0); } 100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); } }

.hero h1 { font-size: clamp(1.85rem, 4vw, 3.5rem); margin: 22px 0; font-weight: 700; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 30px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags li { font-size: 0.8rem; color: var(--muted); padding: 6px 12px; border-radius: 8px; background: var(--surface); border: 1px solid var(--border); }

/* hero visual */
.hero-visual { position: relative; }
.panel {
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-strong); border-radius: 22px; padding: 22px; box-shadow: var(--shadow);
}
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.pill { font-size: 0.78rem; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: rgba(34, 211, 238, 0.12); color: var(--accent); }
.panel-meta { font-size: 0.78rem; color: var(--muted); }
.curve { width: 100%; height: auto; display: block; }
.gridlines line { stroke: var(--border); stroke-dasharray: 3 6; }
.curve-line { stroke-dasharray: 700; stroke-dashoffset: 700; animation: draw 2.4s .4s ease forwards; }
.curve-fill { opacity: 0; animation: fadein 1.2s 1.6s ease forwards; }
.nodes circle { fill: var(--bg); stroke: var(--accent); stroke-width: 3; opacity: 0; animation: fadein .5s ease forwards; }
.nodes circle:nth-child(1) { animation-delay: .5s; } .nodes circle:nth-child(2) { animation-delay: 1.0s; }
.nodes circle:nth-child(3) { animation-delay: 1.5s; } .nodes circle:nth-child(4) { animation-delay: 2.0s; }
.nodes .node-end { fill: var(--accent-2); stroke: #fff; animation-delay: 2.6s; }
.labels text { fill: var(--muted); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadein { to { opacity: 1; } }

.panel-foot { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.panel-foot strong { display: block; font: 600 0.9rem var(--font-head); }
.panel-foot span { font-size: 0.78rem; color: var(--muted); }

.float-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px;
  background: rgba(14, 20, 36, 0.92); border: 1px solid var(--border-strong); border-radius: 999px;
  font-size: 0.8rem; font-weight: 500; box-shadow: var(--shadow); backdrop-filter: blur(8px);
  animation: float 6s ease-in-out infinite;
}
.chip-a { top: -16px; right: 18px; }
.chip-b { top: 46%; left: -34px; animation-delay: -3s; }
.chip-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.chip-dot.violet { background: var(--accent-2); }
@keyframes float { 50% { transform: translateY(-8px); } }

/* ---------- Strip ---------- */
.strip { border-block: 1px solid var(--border); background: var(--bg-alt); }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 26px 0; color: var(--muted); font-size: 0.95rem; }
.strip-grid strong { color: var(--text); font-family: var(--font-head); }

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head p:not(.kicker) { color: var(--muted); margin-top: 16px; font-size: 1.05rem; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); font-weight: 700; }
.kicker { font: 600 0.8rem var(--font-body); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }

/* Services cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; padding: 30px; border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), rgba(14, 20, 36, 0.55));
  border: 1px solid var(--border); transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; opacity: 0; transition: opacity .3s;
  background: var(--grad);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 20px;
  background: rgba(34, 211, 238, 0.1); border: 1px solid rgba(34, 211, 238, 0.25);
}
.icon svg, .contact-points svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.95rem; }
.card ul { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); display: grid; gap: 8px; font-size: 0.88rem; color: var(--text); }
.card li, .checks li { position: relative; padding-left: 22px; }
.card li::before, .checks li::before {
  content: ""; position: absolute; left: 0; top: 0.55em; width: 10px; height: 6px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg) translateY(-50%);
}

/* AI */
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ai-grid h2 { margin-bottom: 18px; }
.checks { display: grid; gap: 12px; margin: 26px 0 32px; }
.ai-cards { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 1fr; gap: 16px; }
.mini { padding: 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.mini-tag { display: inline-block; font-size: 0.7rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); background: rgba(139, 92, 246, 0.14); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px; }
.mini h4 { font-size: 1.05rem; margin-bottom: 8px; }
.mini p { color: var(--muted); font-size: 0.88rem; }

/* ISO */
.iso-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: start; }
.iso-list { display: grid; gap: 12px; }
.iso-item { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); }
.iso-item span { font: 600 1.05rem var(--font-head); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; white-space: nowrap; }
.iso-item em { font-style: normal; color: var(--muted); font-size: 0.88rem; text-align: right; }

.timeline { position: relative; display: grid; gap: 26px; padding-left: 38px; counter-reset: t; }
.timeline::before { content: ""; position: absolute; left: 13px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2)); opacity: .5; }
.timeline li { position: relative; counter-increment: t; }
.timeline li::before {
  content: counter(t); position: absolute; left: -38px; top: 0; width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center; font: 600 0.8rem var(--font-head); color: #04121a; background: var(--grad);
}
.timeline strong { display: block; font: 600 1.05rem var(--font-head); margin-bottom: 4px; }
.timeline span { color: var(--muted); font-size: 0.93rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { padding: 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.step-num { display: block; font: 700 2.4rem var(--font-head); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 14px; }
.step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 0.92rem; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 64px; align-items: center; }
.about-grid h2 { margin-bottom: 20px; }
.about-grid .muted + .muted { margin-top: 14px; }
.values { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.value { padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.value h4 { font-size: 1rem; margin-bottom: 6px; }
.value p { color: var(--muted); font-size: 0.88rem; }

/* Industries */
.industries .section-head { margin-bottom: 30px; }
.chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chips li { padding: 12px 22px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border-strong); font-weight: 500; transition: border-color .2s, transform .2s; }
.chips li:hover { border-color: var(--accent); transform: translateY(-2px); }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--border); border-radius: 14px; background: var(--surface); overflow: hidden; }
.faq summary { cursor: pointer; padding: 20px 56px 20px 24px; font: 600 1.02rem var(--font-head); list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; color: var(--accent); transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details[open] { border-color: var(--border-strong); }
.faq p { padding: 0 24px 22px; color: var(--muted); }

/* Contact */
.contact { background:
  radial-gradient(700px 400px at 85% 100%, rgba(139, 92, 246, 0.18), transparent 70%),
  radial-gradient(600px 400px at 0% 0%, rgba(34, 211, 238, 0.1), transparent 70%), var(--bg-alt);
  border-top: 1px solid var(--border);
}
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact h2 { margin-bottom: 16px; }
.contact-points { display: grid; gap: 14px; margin-top: 28px; }
.contact-points li { display: flex; align-items: center; gap: 14px; }
.contact-points a:hover { color: var(--accent); }

.form { padding: 32px; border-radius: 20px; background: var(--surface); border: 1px solid var(--border-strong); box-shadow: var(--shadow); display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 0.85rem; font-weight: 500; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 14px; border-radius: 10px; border: 1px solid var(--border-strong);
  background: var(--bg); color: var(--text); font: inherit; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18); }
.field .invalid { border-color: #f87171; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { min-height: 1.2em; font-size: 0.85rem; color: var(--muted); text-align: center; }
.form-note.error { color: #f87171; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 44px 0; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px 40px; align-items: start; }
.footer-grid nav { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: flex-end; }
.footer-grid nav a { color: var(--muted); font-size: 0.9rem; }
.footer-grid nav a:hover { color: var(--text); }
.footer-grid .brand + p { margin-top: 12px; max-width: 42ch; }
.copy { grid-column: 1 / -1; padding-top: 24px; border-top: 1px solid var(--border); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .hero-grid, .ai-grid, .about-grid, .contact-grid, .iso-grid { grid-template-columns: 1fr; gap: 48px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .strip-grid { grid-template-columns: repeat(2, 1fr); }
  .chip-b { left: 8px; }
}

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 20px 24px; background: rgba(7, 10, 18, 0.97); border-bottom: 1px solid var(--border);
    transform: translateY(-12px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav-links.open { opacity: 1; transform: none; visibility: visible; }
  .nav-links a:not(.btn) { padding: 14px 4px; font-size: 1.05rem; border-bottom: 1px solid var(--border); }
  .nav-cta { margin-top: 16px; padding: 14px; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .hero { padding-bottom: 64px; }
  .cards, .steps, .values, .ai-cards { grid-template-columns: 1fr; }
  .strip-grid { grid-template-columns: 1fr; gap: 10px; }
  .iso-item { flex-direction: column; align-items: flex-start; gap: 4px; }
  .iso-item em { text-align: left; }
  .form { padding: 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid nav { justify-content: flex-start; }
  .chip-a { right: 8px; } .chip-b { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .curve-line { stroke-dashoffset: 0; } .curve-fill, .nodes circle { opacity: 1; }
}

/* Thank-you page */
.thanks { position: relative; min-height: 100vh; display: grid; place-items: center; padding: 24px; overflow: hidden; }
.thanks-card { position: relative; z-index: 1; max-width: 460px; text-align: center; padding: 44px 36px; border-radius: 20px; background: var(--surface); border: 1px solid var(--border-strong); box-shadow: var(--shadow); display: grid; gap: 16px; justify-items: center; }
.thanks-card h1 { font-size: 2rem; }
.thanks-card .icon { margin-bottom: 4px; }
.thanks-card .btn { margin-top: 8px; }