@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Space+Grotesk:wght@500;600&display=swap');

:root, html[data-theme="dark"] {
  color-scheme: dark;
  --accent: #10b981;
  --bg: #0a0a0b;
  --panel: #111113;
  --text: #e5e5e7;
  --text-muted: #a1a1aa;
  --border: #27272a;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f4f5;
  --panel: #ffffff;
  --text: #18181b;
  --text-muted: #71717a;
  --border: #e4e4e7;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.font-display { font-family: 'Space Grotesk', Inter, sans-serif; }

.topbar {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.65rem; }
.logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.85rem;
  background: linear-gradient(135deg, #10b981, #059669);
  display: grid;
  place-items: center;
  color: #fff;
}
.brand-title { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.03em; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.login-card, .panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
}
.login-card { max-width: 420px; margin: 4rem auto; }
.login-card h1 { margin: 0 0 0.35rem; font-size: 1.35rem; }
.login-card p { margin: 0 0 1.25rem; color: var(--text-muted); font-size: 0.9rem; }

label { display: block; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.35rem; }
input[type="password"], input[type="text"] {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 0.75rem;
  padding: 0.7rem 0.85rem;
  font-size: 0.95rem;
}
input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); border-color: var(--accent); }

.btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 0.75rem;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #052e1c;
  font-weight: 600;
}
.btn.block { width: 100%; margin-top: 1rem; }
.btn.ghost { background: transparent; }
.error { color: #f87171; font-size: 0.85rem; min-height: 1.25rem; margin-top: 0.5rem; }

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.module-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.25rem;
  transition: border-color 0.15s, transform 0.12s;
}
.module-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.module-card .icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.85rem;
  display: grid;
  place-items: center;
  margin-bottom: 0.85rem;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
}
.module-card h2 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.module-card p { margin: 0; color: var(--text-muted); font-size: 0.82rem; line-height: 1.45; }

.security-note {
  margin-top: 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  background: color-mix(in srgb, var(--accent) 8%, var(--panel));
  font-size: 0.78rem;
  color: var(--text-muted);
}
.security-note strong { color: var(--text); }

.hidden { display: none !important; }