:root {
  --bg: #0f1115;
  --panel: #171a21;
  --text: #eef1f6;
  --muted: #9aa3b2;
  --accent: #3dd68c;
  --line: rgba(255,255,255,.08);
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61,214,140,.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(80,120,255,.12), transparent 50%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  background: rgba(15,17,21,.75);
}
.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: .02em;
}
.top nav { display: flex; gap: 1rem; align-items: center; }
.top a { color: var(--muted); text-decoration: none; }
.who { color: var(--muted); font-size: .9rem; }

.wrap {
  width: min(920px, calc(100% - 2rem));
  margin: 2rem auto 4rem;
}

.hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: .2rem 0 .6rem; }
.hero p { color: var(--muted); max-width: 42rem; line-height: 1.5; }
.hero.tight { margin-bottom: 1.25rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .72rem;
  color: var(--accent);
  margin: 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem 1.35rem;
  margin: 1rem 0;
}
.card h1, .card h2 { margin-top: 0; }
.meta { color: var(--muted); font-size: .9rem; margin-bottom: .8rem; }
.hint { color: var(--muted); font-size: .85rem; }
.ok { color: var(--accent); }

.btn {
  display: inline-block;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  padding: .65rem 1rem;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font: inherit;
}
.btn.primary {
  background: var(--accent);
  color: #062416;
  border-color: transparent;
  font-weight: 700;
}
.btn:disabled { opacity: .45; cursor: not-allowed; }

form { display: grid; gap: .75rem; margin-top: .5rem; }
textarea, input[type="file"] {
  width: 100%;
  background: #0d0f14;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .8rem;
}
label { color: var(--muted); font-size: .9rem; }

.flash {
  background: rgba(61,214,140,.12);
  border: 1px solid rgba(61,214,140,.35);
  color: var(--accent);
  padding: .8rem 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
}