:root {
  --bg: #0d1117;
  --bg-alt: #11161f;
  --panel: #161c27;
  --fg: #e6edf3;
  --muted: #8b949e;
  --accent: #5eb1ff;
  --accent-2: #b78cff;
  --border: #232b38;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.7;
}

code {
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  background: rgba(94, 177, 255, 0.12);
  color: var(--accent);
  padding: 0.1em 0.4em;
  border-radius: 5px;
  font-size: 0.9em;
}

/* ---- Hero ---- */
.hero {
  background:
    radial-gradient(1200px 500px at 70% -10%, rgba(123, 97, 255, 0.25), transparent),
    radial-gradient(900px 500px at 10% 10%, rgba(94, 177, 255, 0.18), transparent),
    var(--bg);
  border-bottom: 1px solid var(--border);
  padding-bottom: 5rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.4rem 1.5rem;
}

.brand {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}
.brand .dot { color: var(--accent-2); }

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.4rem;
  font-size: 0.95rem;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--fg); }

.lang-toggle {
  margin-left: 1.4rem;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }

.hero-inner {
  max-width: 820px;
  margin: 3.5rem auto 0;
  padding: 0 1.5rem;
  text-align: center;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin: 0 0 0.8rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.3rem);
  line-height: 1.25;
  margin: 0 0 1.2rem;
  background: linear-gradient(120deg, #fff, #9ecbff 60%, #c4a7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 2rem;
}
.lead strong { color: var(--fg); }

.cta { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.12s, box-shadow 0.12s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0b0f16;
  box-shadow: 0 6px 24px rgba(94, 177, 255, 0.3);
}
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--fg);
}

.visit {
  margin-top: 2.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---- Sections ---- */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}
.section.alt { background: var(--bg-alt); max-width: none; }
.section.alt > * { max-width: 1080px; margin-left: auto; margin-right: auto; }

.section h2 {
  font-size: 1.9rem;
  margin: 0 0 0.6rem;
  text-align: center;
}
.section-lead {
  color: var(--muted);
  text-align: center;
  max-width: 660px;
  margin: 0 auto 2.5rem;
}

/* ---- Cards ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card h3 { margin: 0 0 0.5rem; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }

/* ---- Phase table ---- */
.phase-table {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.phase-table th, .phase-table td {
  text-align: left;
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--border);
}
.phase-table thead th {
  background: rgba(94, 177, 255, 0.08);
  color: var(--accent);
}
.phase-table tbody tr:last-child td { border-bottom: none; }
.phase-table td:first-child { font-weight: 700; color: var(--accent-2); width: 80px; }

/* ---- Stack chips ---- */
.stack {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.8rem;
}
.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  font-size: 0.95rem;
}

/* ---- Auth ---- */
.auth-wrap {
  max-width: 420px;
  margin: 4rem auto;
  padding: 2.2rem 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.auth-wrap h1 { font-size: 1.5rem; margin: 0 0 0.3rem; text-align: center; }
.auth-wrap .sub { color: var(--muted); text-align: center; margin: 0 0 1.6rem; font-size: 0.95rem; }
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.35rem; }
.field input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--fg);
  font-size: 1rem;
}
.field input:focus { outline: none; border-color: var(--accent); }
.auth-wrap .btn { width: 100%; text-align: center; cursor: pointer; border: none; font-size: 1rem; }
.auth-msg { min-height: 1.2rem; margin: 0.3rem 0 0.8rem; font-size: 0.9rem; text-align: center; }
.auth-msg.err { color: #ff7b72; }
.auth-msg.ok { color: #56d364; }
.auth-alt { text-align: center; margin-top: 1.2rem; color: var(--muted); font-size: 0.9rem; }
.auth-alt a { color: var(--accent); text-decoration: none; }
.back-home { display: block; text-align: center; margin-top: 1rem; color: var(--muted); font-size: 0.85rem; text-decoration: none; }

.members-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.2rem; margin-top: 1.5rem; }
.badge { display: inline-block; padding: 0.2rem 0.7rem; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.badge.admin { background: rgba(183,140,255,0.18); color: var(--accent-2); }
.badge.user { background: rgba(94,177,255,0.15); color: var(--accent); }
.user-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.user-table th, .user-table td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.user-table th { color: var(--accent); }

/* ---- Actor playground ---- */
.actor-bar { display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; margin-bottom: 0.9rem; }
.actor-bar label { color: var(--muted); font-size: 0.9rem; }
.actor-bar select {
  background: var(--panel); color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 0.45rem 0.7rem; font-size: 0.9rem;
}
.actor-status { font-size: 0.9rem; color: var(--muted); }
.actor-status.ok { color: #56d364; }
.actor-status.err { color: #ff7b72; }
.actor-source {
  width: 100%; min-height: 280px; resize: vertical;
  background: #0b0f16; color: #e6edf3;
  border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem 1.1rem;
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 0.9rem; line-height: 1.5; tab-size: 2;
}
.actor-source:focus { outline: none; border-color: var(--accent); }
.out-label { margin: 1.4rem 0 0.5rem; color: var(--accent-2); }
.actor-output {
  background: #0b0f16; border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem 1.1rem; min-height: 80px; overflow-x: auto;
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 0.9rem; line-height: 1.55; color: #d8dee9; white-space: pre-wrap;
}

/* ---- Footer ---- */
.footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--fg);
}
.footer .muted { color: var(--muted); font-size: 0.85rem; margin-top: 0.3rem; }

@media (max-width: 560px) {
  .nav-links { display: none; }
}