/* ============ tokens ============ */
:root {
  --bg: #0f1222;
  --bg-2: #171a2e;
  --bg-3: #1f2340;
  --fg: #e7e9f7;
  --fg-dim: #a0a4c0;
  --accent: #7aa2ff;
  --accent-2: #9d7aff;
  --ok: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
  --border: #2a2f52;
  --radius: 10px;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", "Menlo", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(ellipse at top, var(--bg-2), var(--bg) 60%);
  color: var(--fg);
  font-family: var(--font-ui);
  min-height: 100vh;
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .5em; }
button {
  font: inherit;
  background: var(--bg-3);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .55em 1em;
  cursor: pointer;
  transition: background .15s, transform .1s;
}
button:hover { background: #2a2f52; }
button:active { transform: translateY(1px); }
button.primary { background: var(--accent); color: #0b0d1a; border-color: transparent; font-weight: 600; }
button.primary:hover { background: #8fb2ff; }
button.danger { background: #3a1f2a; border-color: #6b2d3f; color: #ffb3b3; }
button.danger:hover { background: #4d2634; }
button:disabled { opacity: .5; cursor: not-allowed; }
input, select, textarea {
  font: inherit;
  background: var(--bg-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .5em .7em;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
label { display: block; font-size: .85em; color: var(--fg-dim); margin-bottom: .25em; }
.field { margin-bottom: .9em; }
.row { display: flex; gap: 1em; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 12em; }
.pill {
  display: inline-block;
  padding: .15em .55em;
  border-radius: 999px;
  background: var(--bg-3);
  font-size: .75em;
  border: 1px solid var(--border);
}
.error-text { color: var(--err); font-size: .85em; margin-top: .25em; }
.input-error { border-color: var(--err) !important; }
.hidden { display: none !important; }

/* ============ landing ============ */
.landing-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 4em 1.5em 2em;
  text-align: center;
}
.landing h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.landing .subtitle { color: var(--fg-dim); font-size: 1.1em; margin-bottom: 3em; }
.landing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5em;
  margin-bottom: 3em;
}
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2em 1.5em;
  color: var(--fg);
  text-decoration: none;
  transition: transform .15s, border-color .15s;
  display: block;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  text-decoration: none;
}
.card-icon { font-size: 3em; margin-bottom: .2em; }
.card h2 { margin: 0; }
.card p { color: var(--fg-dim); margin: .5em 0 0; }
.landing-footer { color: var(--fg-dim); }

/* ============ app shell ============ */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8em 1.5em;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 { font-size: 1.2em; margin: 0; }
.app-header nav { display: flex; gap: .5em; flex-wrap: wrap; }
.app-header nav a, .app-header nav button {
  background: transparent;
  border: 1px solid transparent;
  color: var(--fg);
  padding: .4em .8em;
  border-radius: var(--radius);
  cursor: pointer;
}
.app-header nav a:hover, .app-header nav button:hover {
  background: var(--bg-3);
  text-decoration: none;
}
.app-header nav a.active {
  background: var(--bg-3);
  border-color: var(--accent);
}
.app-main { padding: 1.5em; max-width: 1200px; margin: 0 auto; }

/* ============ cards / sections ============ */
.section {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2em 1.5em;
  margin-bottom: 1.2em;
}
.section h2 { font-size: 1.1em; color: var(--accent); border-bottom: 1px solid var(--border); padding-bottom: .4em; }

/* ============ toasts ============ */
.toast-wrap {
  position: fixed;
  bottom: 1.5em;
  right: 1.5em;
  display: flex;
  flex-direction: column;
  gap: .5em;
  z-index: 1000;
}
.toast {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  padding: .7em 1em;
  border-radius: var(--radius);
  animation: toastIn .25s ease;
  max-width: 22em;
}
.toast.ok { border-left-color: var(--ok); }
.toast.warn { border-left-color: var(--warn); }
.toast.err { border-left-color: var(--err); }
@keyframes toastIn { from { transform: translateX(20px); opacity: 0; } }

/* ============ utilities ============ */
.muted { color: var(--fg-dim); }
.txt-ok { color: var(--ok); }
.txt-warn { color: var(--warn); }
.txt-err { color: var(--err); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }