/* ====== THEME TOKENS ====== */
:root{
  --radius: 18px;
  --max: 1120px;

  /* default = dark */
  --bg: #0b0b0c;
  --bg2: #0f1014;
  --card: rgba(255,255,255,.04);
  --card2: rgba(255,255,255,.03);
  --text: #f5f6f7;
  --muted: #b7bcc3;
  --line: rgba(255,255,255,.10);
  --line2: rgba(255,255,255,.06);
  --accent: #7c5cff;
  --accent2:#22d3ee;
  --shadow: 0 18px 50px rgba(0,0,0,.45);

  --h1: clamp(2.2rem, 3.6vw, 3.4rem);
  --h2: clamp(1.3rem, 1.6vw, 1.55rem);
  --p:  clamp(1.02rem, 1.05vw, 1.12rem);
}

html[data-theme="light"]{
  --bg: #f7f7fb;
  --bg2: #ffffff;
  --card: rgba(0,0,0,.04);
  --card2: rgba(0,0,0,.03);
  --text: #0b0b0c;
  --muted: #454b55;
  --line: rgba(0,0,0,.12);
  --line2: rgba(0,0,0,.06);
  --shadow: 0 18px 50px rgba(0,0,0,.12);
}

/* ====== BASE ====== */
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color: var(--text);
  line-height: 1.55;

  /* premium background */
  background:
    radial-gradient(900px 520px at 18% 8%, color-mix(in oklab, var(--accent) 20%, transparent), transparent 60%),
    radial-gradient(750px 420px at 82% 0%, color-mix(in oklab, var(--accent2) 18%, transparent), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:.92; }
code{ background: color-mix(in oklab, var(--text) 8%, transparent); padding:.18rem .38rem; border-radius:10px; }

/* containers & layout rhythm */
.container{ max-width: var(--max); padding: 0 20px; margin: 0 auto; }
.section{ padding: clamp(2.6rem, 4.5vw, 3.8rem) 0; }
.section.alt{
  background: color-mix(in oklab, var(--text) 3%, transparent);
  border-top: 1px solid var(--line2);
  border-bottom: 1px solid var(--line2);
}

/* ====== HEADER / NAV ====== */
.header{
  position: sticky; top:0; z-index: 60;
  backdrop-filter: blur(12px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--line2);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 0;
  gap: 16px;
  position:relative;
}

.brand{
  display:flex; align-items:center; gap:10px;
  font-weight: 900;
  letter-spacing: .2px;
}
.brand-mark{
  width: 12px; height: 12px; border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 12%, transparent);
}
.dot{ color: var(--accent); }

.nav-actions{ display:flex; align-items:center; gap:10px; }

.nav-links{
  display:flex; align-items:center; gap: 18px;
}
.nav-links a{
  color: var(--muted);
  font-weight: 750;
  font-size: 14px;
  padding: 10px 10px;
  border-radius: 12px;
}
.nav-links a.active{
  color: var(--text);
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 18%, transparent);
}
.nav-links a:hover{ color: var(--text); background: color-mix(in oklab, var(--text) 6%, transparent); }

.nav-toggle{
  display:none;
  width:44px; height:44px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--text) 5%, transparent);
  border-radius: 14px;
  padding: 10px;
}
.nav-toggle span{
  display:block; height:2px; border-radius:2px;
  background: var(--text);
  margin: 5px 0;
}

.theme-toggle{
  width:44px; height:44px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--text) 5%, transparent);
  border-radius: 14px;
  display:grid; place-items:center;
  cursor:pointer;
}
.theme-toggle .sun{ display:none; }
html[data-theme="light"] .theme-toggle .sun{ display:inline; }
html[data-theme="light"] .theme-toggle .moon{ display:none; }

/* ====== BUTTONS ====== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 900;
  border: 1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  background: linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent) 65%, var(--accent2)));
  color: #0b0b0c;
  box-shadow: var(--shadow);
  transform: translateZ(0);
}
.btn:hover{ transform: translateY(-1px); }
.btn-sm{ padding: 10px 12px; font-size: 14px; }

.btn-ghost{
  background: color-mix(in oklab, var(--text) 6%, transparent);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}

/* ====== TYPOGRAPHY ====== */
h1{
  margin: 0 0 14px;
  font-size: var(--h1);
  line-height: 1.06;
  letter-spacing: -0.02em;
}
h2{ margin:0; font-size: var(--h2); letter-spacing:-0.01em; }
h3{ margin:0 0 8px; font-size: 1rem; letter-spacing:-0.01em; }
.subhead{ margin: 0 0 18px; color: var(--muted); font-size: var(--p); max-width: 62ch; }
.muted{ color: var(--muted); }

/* gradient emphasis */
.grad{
  background: linear-gradient(135deg, var(--text), color-mix(in oklab, var(--accent2) 55%, var(--text)));
  -webkit-background-clip: text;
  background-clip:text;
  color: transparent;
}

/* ====== HERO ====== */
.hero{ padding: clamp(2.6rem, 4.5vw, 3.6rem) 0 1.2rem; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 18px;
  align-items: stretch;
}

.eyebrow{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  color: var(--muted);
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 12px;
  margin: 0 0 10px;
}
.badge{
  letter-spacing: .06em;
  text-transform: none;
  font-weight: 850;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  background: color-mix(in oklab, var(--accent) 10%, transparent);
  color: var(--text);
}

.hero-cta{ display:flex; gap:12px; flex-wrap:wrap; margin: 14px 0 14px; }

.proof{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0 10px;
}
.proof-card{
  background: color-mix(in oklab, var(--text) 4%, transparent);
  border: 1px solid var(--line2);
  border-radius: 16px;
  padding: 12px 12px;
}
.proof-num{ margin:0; font-weight: 950; font-size: 1.15rem; }
.proof-label{ margin: 4px 0 0; color: var(--muted); font-size: 13px; }

.meta{
  color: var(--muted);
  font-size: 14px;
  margin-top: 10px;
}
.meta a{ text-decoration: underline; text-underline-offset: 4px; }
.sep{ margin: 0 8px; opacity:.6; }

/* right hero card */
.hero-card{
  background: linear-gradient(180deg,
    color-mix(in oklab, var(--text) 6%, transparent),
    color-mix(in oklab, var(--text) 3%, transparent)
  );
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.hero-card::before{
  content:"";
  position:absolute; inset:-60px -60px auto auto;
  width: 220px; height: 220px;
  background: radial-gradient(circle at 30% 30%,
    color-mix(in oklab, var(--accent) 30%, transparent),
    transparent 60%
  );
  filter: blur(2px);
  pointer-events:none;
}
.hero-card-top{ margin-bottom: 10px; }

.list{
  list-style:none; padding:0; margin:0;
  display:grid; gap:10px;
}
.list li{
  display:grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 16px;
  background: color-mix(in oklab, var(--text) 4%, transparent);
  border: 1px solid var(--line2);
  color: var(--muted);
}
.list li span{
  font-weight: 950;
  color: var(--text);
}

.mini{
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line2);
}
.mini-title{ margin:0; font-weight: 900; }
.mini-body{ margin: 6px 0 0; color: var(--muted); }

/* marquee */
.hero-marquee{ margin-top: 18px; }
.marquee{
  display:flex; gap: 18px; flex-wrap:wrap;
  border: 1px dashed var(--line2);
  border-radius: 16px;
  padding: 12px 14px;
  background: color-mix(in oklab, var(--text) 3%, transparent);
}
.marquee span{
  color: var(--muted);
  font-weight: 850;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--text) 4%, transparent);
  border: 1px solid var(--line2);
}

/* ====== SECTION HEAD ====== */
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap: 18px;
  margin-bottom: 18px;
}
.section-chip{
  font-size: 12px;
  font-weight: 900;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--accent2) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent2) 18%, transparent);
}

/* ====== GRIDS / CARDS ====== */
.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.card{
  background: var(--card2);
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 0 0 rgba(0,0,0,0);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: color-mix(in oklab, var(--accent) 18%, var(--line2));
}
.bullets{ margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.bullets li{ margin: 6px 0; }

.card-foot{
  display:flex; flex-wrap:wrap; gap:8px;
  margin-top: 12px;
}
.tag{
  font-size:12px;
  font-weight: 850;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line2);
  background: color-mix(in oklab, var(--text) 3%, transparent);
}

/* ====== CASE STUDIES ====== */
.stack{ display:grid; gap:12px; }
.case{
  background: var(--card2);
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  padding: 16px;
}
.case-top{
  display:flex; justify-content:space-between; align-items:center; gap:12px;
}
.pill{
  font-size:12px;
  font-weight: 900;
  padding: 7px 10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 22%, transparent);
}
.case-grid{
  margin-top: 12px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.case-label{
  margin: 0 0 6px;
  font-weight: 950;
  font-size: 13px;
}

/* ====== POSTS ====== */
.post{
  display:flex; align-items:center; justify-content:space-between;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line2);
  background: var(--card2);
  transition: transform .18s ease, box-shadow .18s ease;
}
.post:hover{ transform: translateY(-2px); box-shadow: var(--shadow); }
.post-title{ margin:0; font-weight: 950; }
.arrow{ color: var(--muted); font-weight: 950; }

/* ====== FORMS ====== */
.form{ display:grid; gap: 10px; margin-top: 10px; }
label{ display:grid; gap: 6px; color: var(--muted); font-weight: 850; font-size: 13px; }
input, textarea{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  color: var(--text);
  outline:none;
}
input:focus, textarea:focus{
  border-color: color-mix(in oklab, var(--accent2) 55%, transparent);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent2) 16%, transparent);
}

.big{ font-size: 18px; font-weight: 950; margin: 6px 0 0; }
.big a{ text-decoration: underline; text-underline-offset: 4px; }

.contact-actions{ display:flex; gap:10px; flex-wrap:wrap; margin-top: 12px; }

/* ====== FOOTER ====== */
.footer{ padding: 26px 0 40px; }
.footer-inner{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  border-top: 1px solid var(--line2);
  padding-top: 16px;
}
.footer-links{ display:flex; gap: 14px; }
.footer-links a{ color: var(--muted); }
.footer-links a:hover{ color: var(--text); }

/* ====== RESPONSIVE ====== */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .case-grid{ grid-template-columns: 1fr; }
  .proof{ grid-template-columns: 1fr; }

  .nav-toggle{ display:inline-flex; }

  .nav-links{
    position:absolute;
    right: 0;
    top: 64px;
    width: min(420px, calc(100vw - 40px));
    padding: 14px;
    border-radius: 18px;
    background: color-mix(in oklab, var(--bg) 86%, transparent);
    border: 1px solid var(--line);
    display:none;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }
  .nav-links.open{ display:flex; }
}

/* ====== MOTION: respect user settings ====== */
@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}

/* ====== REVEAL ANIMATIONS ====== */
.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in{
  opacity: 1;
  transform: translateY(0);
}