/* ============================================================
   Davidian Software — main.css
   Dark · futuristic · full-width · single accent (brand yellow)
   ============================================================ */

/* ---- Tokens ------------------------------------------------ */
:root {
  /* surfaces (OKLCH-derived, near-black with a cool cast) */
  --bg:        #08090b;
  --bg-1:      #0c0e12;
  --bg-2:      #11141a;
  --panel:     #0f1218;
  --panel-2:   #14181f;

  /* lines / strokes */
  --line:      rgba(255,255,255,.08);
  --line-2:    rgba(255,255,255,.14);

  /* text */
  --text:      #f3f4f7;
  --text-dim:  #aab0bb;
  --text-faint:#8b92a0;

  /* brand accent — sampled from logo (#E0D008) */
  --accent:        #e0d008;
  --accent-bright: #f2e63a;
  --accent-soft:   rgba(224,208,8,.14);
  --accent-glow:   rgba(224,208,8,.40);

  /* cool ambient (futuristic depth, never used for UI text) */
  --cool:      #3a5bff;

  /* type */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body:    "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* fluid type scale */
  --fs-kicker: .78rem;
  --fs-h1: clamp(2.6rem, 6.2vw, 5.4rem);
  --fs-h2: clamp(2rem, 4vw, 3.1rem);
  --fs-h3: 1.12rem;
  --fs-lede: clamp(1.05rem, 1.7vw, 1.32rem);

  /* spacing / layout */
  --maxw: 1240px;
  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --section-y: clamp(5rem, 11vw, 9rem);
  --radius: 18px;
  --radius-sm: 12px;

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

/* ---- Reset ------------------------------------------------- */
*,*::before,*::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1,h2,h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.04; letter-spacing: -.02em; }

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

.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--accent); color: #15130a;
  padding: .55rem 1rem; border-radius: 8px; font-weight: 600;
  z-index: 200; transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---- Ambient background ------------------------------------ */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(60rem 40rem at 78% -8%, rgba(224,208,8,.10), transparent 60%),
    radial-gradient(55rem 45rem at 8% 8%, rgba(58,91,255,.10), transparent 58%),
    radial-gradient(40rem 40rem at 50% 120%, rgba(58,91,255,.08), transparent 60%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
          mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}

/* ---- Shared bits ------------------------------------------- */
.kicker {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-kicker);
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent);
}
.kicker__dot {
  width: 7px; height: 7px; border-radius: 2px; background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.btn {
  --pad-y: .85rem; --pad-x: 1.5rem;
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: var(--pad-y) var(--pad-x);
  font-family: var(--font-display); font-weight: 600; font-size: .98rem;
  border-radius: 999px; cursor: pointer;
  transition: transform .18s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), box-shadow .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn--lg { --pad-y: 1.05rem; --pad-x: 2rem; font-size: 1.05rem; font-family: var(--font-mono); letter-spacing: .02em; }
.btn--primary {
  background: var(--accent); color: #15130a;
  box-shadow: 0 0 0 1px var(--accent), 0 14px 40px -12px var(--accent-glow);
}
.btn--primary:hover { background: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 0 0 1px var(--accent-bright), 0 18px 46px -10px var(--accent-glow); }
.btn--ghost {
  background: rgba(255,255,255,.02); color: var(--text);
  border: 1px solid var(--line-2);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(8,9,11,.82), rgba(8,9,11,.45));
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: .85rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: .7rem; }
.brand__mark { width: 40px; height: auto; }
.brand__name {
  font-family: var(--font-display); font-weight: 600; font-size: 1.02rem;
  letter-spacing: -.01em;
}
.nav__links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.2rem); }
.nav__links a { font-size: .95rem; color: var(--text-dim); transition: color .2s var(--ease); }
.nav__links a:hover { color: var(--text); }
.nav__cta {
  color: var(--text) !important;
  border: 1px solid var(--line-2);
  padding: .5rem 1.1rem; border-radius: 999px;
}
.nav__cta:hover { border-color: var(--accent); color: var(--accent) !important; }
@media (max-width: 560px) {
  .brand__name { display: none; }
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3rem, 8vw, 6.5rem) var(--gutter) clamp(2rem, 5vw, 3rem);
}
.hero__grid {
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  min-height: min(72vh, 640px);
}
.hero__copy { max-width: 36rem; }
.hero h1 {
  font-size: var(--fs-h1); font-weight: 700;
  margin: 1.4rem 0 0;
  background: linear-gradient(180deg, #ffffff 30%, #b9c0cd 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede {
  font-size: var(--fs-lede); color: var(--text-dim);
  margin-top: 1.5rem; max-width: 32rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.2rem; }

.hero__status {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .2em;
  color: var(--text-faint); display: inline-flex; align-items: center; gap: .6rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
}
.hero__status-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #46e08a;
  box-shadow: 0 0 10px rgba(70,224,138,.8);
  animation: blink 2.4s steps(1) infinite;
}
@keyframes blink { 0%,70%{opacity:1} 71%,100%{opacity:.25} }

/* ---- Avatar orb ------------------------------------------- */
.hero__avatar { display: grid; place-items: center; }
.orb-stage {
  position: relative;
  width: clamp(240px, 34vw, 420px);
  aspect-ratio: 1;
  display: grid; place-items: center;
  will-change: transform;
}
.orb {
  position: relative;
  width: 62%; aspect-ratio: 1; border-radius: 50%;
  display: grid; place-items: center;
  background:
    radial-gradient(circle at 36% 30%, #2b2f3a 0%, #14161d 42%, #090a0e 72%, #06070a 100%);
  box-shadow:
    inset 0 0 40px rgba(0,0,0,.8),
    inset 6px 10px 30px rgba(255,255,255,.05),
    0 30px 80px -20px rgba(0,0,0,.9);
}
.orb__core {
  position: absolute; width: 44%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, var(--accent-bright) 0%, var(--accent) 38%, rgba(224,208,8,.15) 70%, transparent 75%);
  filter: blur(.4px);
  box-shadow: 0 0 50px 6px var(--accent-glow), 0 0 120px 18px rgba(224,208,8,.22);
  animation: pulse 3.4s var(--ease) infinite;
}
.orb__iris {
  position: absolute; width: 15%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 50% 42%, #fffbe0, var(--accent-bright) 60%, #b9a800 100%);
  box-shadow: 0 0 22px 4px rgba(255,255,255,.5);
  animation: pulse 3.4s var(--ease) infinite reverse;
}
@keyframes pulse {
  0%,100% { transform: scale(1);   opacity: 1; }
  50%     { transform: scale(1.07); opacity: .82; }
}
.orb__scan {
  position: absolute; width: 88%; height: 88%; border-radius: 50%;
  background: linear-gradient(180deg, transparent 0%, rgba(224,208,8,.10) 48%, transparent 52%);
  mix-blend-mode: screen;
  animation: scan 4.5s linear infinite;
}
@keyframes scan { 0%{transform:translateY(-46%)} 100%{transform:translateY(46%)} }

/* rings */
.orb__ring {
  position: absolute; border-radius: 50%; border: 1px solid var(--line-2);
}
.orb__ring--1 {
  width: 100%; height: 100%;
  border-color: rgba(224,208,8,.28);
  border-top-color: var(--accent); border-right-color: transparent;
  animation: spin 9s linear infinite;
}
.orb__ring--2 {
  width: 124%; height: 124%;
  border-style: dashed; border-color: rgba(255,255,255,.10);
  animation: spin 22s linear infinite reverse;
}
.orb__ring--3 {
  width: 150%; height: 150%;
  border-color: rgba(255,255,255,.05);
  border-bottom-color: rgba(58,91,255,.45);
  animation: spin 16s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* orbiting satellite */
.orb__sat {
  position: absolute; width: 150%; height: 150%;
  animation: spin 16s linear infinite;
}
.orb__sat::before {
  content: ""; position: absolute; top: 50%; left: -5px; transform: translateY(-50%);
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 16px 3px var(--accent-glow);
}

.orb__glow {
  position: absolute; inset: -8% ; border-radius: 50%; z-index: -1;
  background: radial-gradient(circle, rgba(224,208,8,.16) 0%, transparent 62%);
  filter: blur(8px);
}

@media (prefers-reduced-motion: reduce) {
  .orb__core,.orb__iris,.orb__scan,.orb__ring,.orb__sat,.hero__status-dot { animation: none !important; }
}

/* ============================================================
   Sections (generic)
   ============================================================ */
.section {
  max-width: var(--maxw); margin: 0 auto;
  padding: var(--section-y) var(--gutter);
  border-top: 1px solid var(--line);
}
.section__head { margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.section__head h2, .section h2 { font-size: var(--fs-h2); margin-top: 1rem; max-width: 18ch; }

/* ---- Products --------------------------------------------- */
.product-grid {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 1.4rem;
}
.card {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)) ,
    var(--panel);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  display: flex; flex-direction: column;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.card--feature::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(28rem 16rem at 86% -10%, var(--accent-soft), transparent 60%);
}
.card > * { position: relative; z-index: 1; }
.card:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: 0 30px 70px -30px rgba(0,0,0,.8); }
.card--feature:hover { border-color: rgba(224,208,8,.45); }

.card__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.3rem; }
.card__logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.7rem; letter-spacing: -.02em;
  color: var(--text);
}
.badge {
  display: inline-flex; align-items: center; gap: .45rem;
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  padding: .32rem .7rem; border-radius: 999px; border: 1px solid var(--line-2);
  color: var(--text-dim);
}
.badge--live { color: #6ff0a6; border-color: rgba(111,240,166,.35); background: rgba(111,240,166,.06); }
.badge__dot { width: 6px; height: 6px; border-radius: 50%; background: #46e08a; box-shadow: 0 0 8px rgba(70,224,138,.9); }

.card__lead { font-family: var(--font-display); font-weight: 500; font-size: 1.22rem; color: var(--text); line-height: 1.3; }
.card__lead--muted { color: var(--text-dim); }
.card__body { color: var(--text-dim); margin-top: .9rem; font-size: 1rem; }
.card__meta { list-style: none; padding: 0; margin: 1.4rem 0 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.card__meta li {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .04em;
  color: var(--text-faint); border: 1px solid var(--line); border-radius: 8px; padding: .35rem .65rem;
}
.card__cta {
  margin-top: auto; padding-top: 1.6rem;
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-display); font-weight: 600; color: var(--accent);
  transition: gap .2s var(--ease), color .2s var(--ease);
}
.card__cta:hover { gap: .85rem; color: var(--accent-bright); }
.card__cta--muted { color: var(--text-dim); }
.card__cta--muted:hover { color: var(--text); }

.card--ghost {
  background: repeating-linear-gradient(135deg, rgba(255,255,255,.015) 0 12px, transparent 12px 24px), var(--bg-1);
  border-style: dashed;
}
.card__soon {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 1.3rem; display: inline-block;
}

/* ---- Studio ----------------------------------------------- */
.studio__inner { max-width: var(--maxw); }
.studio__body { color: var(--text-dim); font-size: var(--fs-lede); max-width: 52ch; margin-top: 1.4rem; }
.pillars {
  list-style: none; padding: 0; margin: clamp(2.5rem,5vw,4rem) 0 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem;
}
.pillar { border-top: 1px solid var(--line-2); padding-top: 1.2rem; }
.pillar__num { font-family: var(--font-mono); font-size: .8rem; color: var(--accent); letter-spacing: .1em; }
.pillar h3 { font-size: var(--fs-h3); font-weight: 600; margin-top: .7rem; }
.pillar p { color: var(--text-dim); margin-top: .5rem; font-size: .96rem; }

/* ---- Contact ---------------------------------------------- */
.contact { text-align: center; border-bottom: 1px solid var(--line); }
.contact__inner { max-width: 40rem; margin: 0 auto; display: grid; justify-items: center; }
.contact .kicker { justify-self: center; }
.contact h2 { margin: 1rem auto 0; }
.contact__body { color: var(--text-dim); font-size: var(--fs-lede); margin: 1.2rem 0 2.2rem; }

/* ============================================================
   Footer
   ============================================================ */
.footer { max-width: var(--maxw); margin: 0 auto; padding: clamp(3rem,6vw,4.5rem) var(--gutter) 2.5rem; }
.footer__inner {
  display: flex; flex-wrap: wrap; gap: 2rem; align-items: center; justify-content: space-between;
  padding-bottom: 2rem; border-bottom: 1px solid var(--line);
}
.footer__mark { width: 116px; opacity: .92; }
.footer__tag { color: var(--text-faint); font-size: .9rem; margin-top: .8rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 1.6rem; }
.footer__nav a { color: var(--text-dim); font-size: .95rem; transition: color .2s var(--ease); }
.footer__nav a:hover { color: var(--accent); }
.footer__legal {
  display: flex; flex-wrap: wrap; gap: .6rem; align-items: center;
  margin-top: 1.6rem; color: var(--text-faint); font-size: .82rem; font-family: var(--font-mono);
}
.footer__sep { opacity: .5; }

/* ---- Scroll reveal (progressive enhancement) -------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; min-height: 0; gap: 2.5rem; }
  .hero__copy { max-width: none; margin: 0 auto; }
  .hero__actions { justify-content: center; }
  .lede { margin-left: auto; margin-right: auto; }
  .hero__avatar { order: -1; }
  .product-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; gap: 0; }
  .pillar { padding: 1.4rem 0; border-top: 1px solid var(--line); }
}
@media (max-width: 480px) {
  .hero__actions .btn { width: 100%; }
}