/* WIRA-AI — OrenG Academy. No external fonts or assets. */

:root {
  --bg: #0b0f17;
  --bg-alt: #0f1522;
  --surface: #141b2a;
  --surface-2: #1b2436;
  --border: #26324a;
  --text: #e9edf4;
  --muted: #a3aec2;
  --accent: #ff7a1a;
  --accent-strong: #ff8f3d;
  --accent-soft: rgba(255, 122, 26, 0.12);
  --on-accent: #1a0d02;
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1160px;
  --gutter: 20px;
  --header-h: 68px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 750; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 650; }
p { margin: 0 0 1em; }
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }

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

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  width: 20px; height: 20px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.75;
  stroke-linecap: round; stroke-linejoin: round;
}

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

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: var(--radius-sm); font-weight: 600;
}
.skip:focus { top: 12px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 0.98rem; line-height: 1.2;
  transition: background-color .15s, border-color .15s, color .15s, transform .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-strong); }
.btn-sm { padding: 8px 16px; font-size: 0.92rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid rgba(38, 50, 74, 0.6);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 32px; height: 32px; }
.mark-hex { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.6; stroke-linejoin: round; }
.mark-w { fill: none; stroke: var(--accent-strong); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.brand-text { font-weight: 800; font-size: 1.2rem; letter-spacing: 0.02em; }
.brand-ai { color: var(--accent); }
.brand-by { color: var(--muted); font-size: 0.82rem; border-left: 1px solid var(--border); padding-left: 10px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a:not(.btn) { color: var(--muted); padding: 8px 12px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 500; }
.nav a:not(.btn):hover { color: var(--text); background: var(--surface); text-decoration: none; }
.nav-cta { margin-left: 8px; }

.header-actions { display: flex; align-items: center; gap: 8px; }
.lang-toggle, .menu-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 12px; font: inherit; font-size: 0.88rem; font-weight: 650; cursor: pointer;
}
.lang-toggle:hover, .menu-toggle:hover { border-color: var(--accent); }
.lang-toggle .icon { width: 16px; height: 16px; color: var(--accent); }
.menu-toggle { display: none; padding: 7px; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  padding: 72px 0 80px;
  background:
    radial-gradient(60% 60% at 80% 30%, rgba(255, 122, 26, 0.14), transparent 70%),
    radial-gradient(40% 50% at 10% 90%, rgba(80, 120, 255, 0.08), transparent 70%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 70% at 50% 40%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 40%, #000 30%, transparent 80%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-block; color: var(--accent-strong);
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 14px;
}
.lede { color: var(--muted); font-size: 1.15rem; max-width: 38em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 32px; }
.trust { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; }
.trust li { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 0.95rem; }
.trust .icon { color: var(--accent); }

.hero-visual svg { width: 100%; height: auto; max-width: 480px; display: block; margin: 0 auto; }
.orbit { fill: none; stroke: var(--border); stroke-width: 1; stroke-dasharray: 2 6; }
.links line { stroke: var(--accent); stroke-opacity: 0.55; stroke-width: 1.5; stroke-dasharray: 4 8; animation: flow 2.8s linear infinite; }
.pulse { fill: none; stroke: var(--accent); stroke-opacity: 0.4; transform-origin: 240px 210px; animation: pulse 3.2s ease-out infinite; }
.core { fill: #1d1409; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.core-text { fill: var(--text); font: 800 26px var(--font); letter-spacing: 0.06em; }
.core-sub { fill: var(--accent); font: 700 14px var(--font); letter-spacing: 0.3em; }
.node circle { fill: var(--surface); stroke: var(--border); stroke-width: 1.5; transition: stroke .2s; }
.node:hover circle { stroke: var(--accent); }
.node text { fill: var(--text); font: 600 12px var(--font); }

@keyframes flow { to { stroke-dashoffset: -48; } }
@keyframes pulse {
  0% { transform: scale(0.9); stroke-opacity: 0.5; }
  100% { transform: scale(1.45); stroke-opacity: 0; }
}

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid rgba(38,50,74,0.5); border-bottom: 1px solid rgba(38,50,74,0.5); }
.section-head { max-width: 720px; margin-bottom: 40px; }
.section-head p:not(.eyebrow) { color: var(--muted); font-size: 1.08rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split > div > p:not(.eyebrow) { color: var(--muted); font-size: 1.06rem; }

.checklist { display: grid; gap: 12px; }
.checklist li {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; font-weight: 550;
}
.checklist .icon { color: var(--accent); width: 22px; height: 22px; }

/* Cards & grids */
.grid { display: grid; gap: 20px; }
.products { grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.principles, .deploy { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: border-color .2s, transform .2s;
}
.card p { color: var(--muted); }
.card p:last-child { margin-bottom: 0; }
.card.featured { border-color: rgba(255, 122, 26, 0.55); background: linear-gradient(180deg, rgba(255,122,26,0.07), transparent 60%), var(--surface); }

.icon-box {
  display: inline-grid; place-items: center; width: 44px; height: 44px; flex: none;
  border-radius: 12px; background: var(--accent-soft); color: var(--accent); margin-bottom: 16px;
}
.icon-box .icon { width: 22px; height: 22px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip {
  background: transparent; color: var(--muted); border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 16px; font: inherit; font-size: 0.92rem; font-weight: 550; cursor: pointer;
  transition: color .15s, border-color .15s, background-color .15s;
}
.chip:hover { color: var(--text); border-color: var(--muted); }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

.product { display: flex; flex-direction: column; }
.product:hover { border-color: rgba(255, 122, 26, 0.45); transform: translateY(-2px); }
.product[hidden] { display: none; }
.product-head { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 14px; }
.product-head .icon-box { margin-bottom: 0; }
.product-head h3 { margin: 2px 0 6px; font-size: 1.18rem; }
.tag {
  display: inline-block; font-size: 0.74rem; font-weight: 650; letter-spacing: 0.02em;
  color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; margin-right: 6px;
}
.tag-accent { color: var(--accent-strong); border-color: rgba(255,122,26,0.5); background: var(--accent-soft); }
.label {
  display: block; color: var(--accent-strong); font-size: 0.74rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 2px;
}
.product .need span:not(.label) { color: var(--text); font-weight: 550; }
.product .for { font-size: 0.93rem; }
.product .link-arrow { margin-top: auto; padding-top: 8px; }

.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 650; }
.link-arrow .icon { width: 16px; height: 16px; transition: transform .15s; }
.link-arrow:hover { text-decoration: none; }
.link-arrow:hover .icon { transform: translateX(3px); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; counter-reset: step; }
.step {
  position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px;
}
.step p { color: var(--muted); margin: 0; font-size: 0.95rem; }
.step-num { display: block; font-size: 0.85rem; font-weight: 800; color: var(--accent); letter-spacing: 0.08em; margin-bottom: 10px; }
.step-key { border-color: rgba(255, 122, 26, 0.55); background: linear-gradient(180deg, rgba(255,122,26,0.08), transparent 70%), var(--surface); }

/* Pricing */
.pricing { margin-top: 88px; }
.models { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.models > div { border-top: 2px solid var(--accent); padding-top: 14px; }
.models dt { font-weight: 700; margin-bottom: 6px; }
.models dd { color: var(--muted); font-size: 0.94rem; }
.note { color: var(--muted); margin-top: 28px; font-size: 0.95rem; }

/* About */
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.facts li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.facts strong { display: block; font-size: 1.25rem; color: var(--text); margin-bottom: 4px; }
.facts span { color: var(--muted); font-size: 0.94rem; }

/* CTA */
.cta { padding-top: 24px; }
.cta-box {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center;
  border: 1px solid rgba(255, 122, 26, 0.45); border-radius: 22px; padding: 48px;
  background:
    radial-gradient(70% 120% at 0% 0%, rgba(255, 122, 26, 0.16), transparent 60%),
    var(--surface);
}
.cta-copy p:not(.eyebrow) { color: var(--muted); font-size: 1.06rem; }
.cta-copy .hero-cta { margin-bottom: 0; }
.contact-list { display: grid; gap: 14px; }
.contact-list li { display: flex; align-items: flex-start; gap: 12px; color: var(--text); }
.contact-list .icon { color: var(--accent); margin-top: 3px; }
.contact-list a { color: var(--text); word-break: break-word; }
.contact-list a:hover { color: var(--accent-strong); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 88px; padding: 40px 0 24px; background: var(--bg-alt); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.footer-note { color: var(--muted); font-size: 0.92rem; margin-top: 12px; }
.social { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.social a { color: var(--muted); font-size: 0.94rem; }
.social a:hover { color: var(--text); }
.footer-bottom { margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(38,50,74,0.6); }
.footer-bottom p { color: var(--muted); font-size: 0.86rem; margin: 0; }

/* Responsive */
@media (max-width: 1080px) {
  .nav a:not(.btn) { padding: 8px 8px; font-size: 0.9rem; }
  .brand-by { display: none; }
  .models { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; }
  .header-actions { margin-left: auto; }
  .nav {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 12px var(--gutter) 20px; margin: 0;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a:not(.btn) { padding: 12px; font-size: 1rem; }
  .nav-cta { margin: 8px 0 0; justify-content: center; }
  .hero-inner, .split, .cta-box { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-visual svg { max-width: 340px; }
  .principles, .deploy { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  :root { --gutter: 16px; }
  .hero { padding: 40px 0 56px; }
  .section { padding: 64px 0; }
  .trust, .facts { grid-template-columns: 1fr; }
  .principles, .deploy, .steps { grid-template-columns: 1fr; }
  .models { grid-template-columns: 1fr 1fr; }
  .cta-box { padding: 28px 20px; }
  .hero-visual svg { max-width: 280px; }
  .btn { width: 100%; justify-content: center; }
  .nav-cta { width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .links line, .pulse { animation: none; }
  .btn, .product, .link-arrow .icon { transition: none; }
}