@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0d0a14;
  --bg-2: #15101f;
  --card: #1b1428;
  --border: #2d2240;
  --text: #ece8f4;
  --muted: #9d93b3;
  --purple: #8b5cf6;
  --purple-2: #a78bfa;
  --purple-dark: #6d28d9;
  --danger: #f87171;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, rgba(139, 92, 246, .18), transparent 60%),
              radial-gradient(900px 500px at -10% 110%, rgba(109, 40, 217, .16), transparent 60%), var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.5 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  min-height: 100vh;
}
a { color: var(--purple-2); }

/* brand */
.brand { display: flex; align-items: center; gap: 12px; }
.brand strong { display: block; font-size: 16px; }
.brand small { color: var(--muted); font-size: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  font-weight: 700; font-size: 18px; color: #fff;
  background: linear-gradient(135deg, var(--purple-2), var(--purple-dark));
  box-shadow: 0 6px 20px rgba(139, 92, 246, .35);
}

/* login */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.card {
  width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}
.card h1 { font-size: 22px; margin: 24px 0 18px; }
label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 14px; }
input {
  display: block; width: 100%; margin-top: 6px; padding: 11px 13px; font: inherit; color: var(--text);
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(139, 92, 246, .25); }
button {
  width: 100%; padding: 12px; margin-top: 6px; font: inherit; font-weight: 600; color: #fff; cursor: pointer;
  border: 0; border-radius: 10px; background: linear-gradient(135deg, var(--purple), var(--purple-dark));
  transition: filter .15s, transform .05s;
}
button:hover { filter: brightness(1.12); }
button:active { transform: translateY(1px); }
button.ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); }
button.ghost:hover { color: var(--text); border-color: var(--purple); }
.error {
  background: rgba(248, 113, 113, .1); border: 1px solid rgba(248, 113, 113, .35); color: var(--danger);
  padding: 10px 12px; border-radius: 10px; font-size: 13px; margin: 0 0 14px;
}

/* app shell */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side {
  background: rgba(21, 16, 31, .85); border-right: 1px solid var(--border);
  padding: 22px 16px; display: flex; flex-direction: column; gap: 26px;
}
.side nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.side nav a { color: var(--muted); text-decoration: none; padding: 9px 12px; border-radius: 9px; }
.side nav a:hover { color: var(--text); background: var(--bg-2); }
.side nav a.active { color: #fff; background: rgba(139, 92, 246, .18); box-shadow: inset 3px 0 0 var(--purple); }
.content { padding: 32px; }
.content h1 { margin: 0 0 24px; font-size: 26px; }
.empty {
  border: 1px dashed var(--border); border-radius: var(--radius); background: rgba(27, 20, 40, .6);
  padding: 64px 24px; text-align: center;
}
.empty h2 { margin: 18px 0 6px; font-size: 18px; }
.empty p { color: var(--muted); margin: 0; }
.dot {
  width: 56px; height: 56px; margin: 0 auto; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--purple-2), var(--purple-dark));
  box-shadow: 0 0 40px rgba(139, 92, 246, .5);
}

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; align-items: center; justify-content: space-between; padding: 12px 16px; border-right: 0; border-bottom: 1px solid var(--border); }
  .side nav { display: none; }
  .side form button { width: auto; padding: 8px 12px; margin: 0; }
  .content { padding: 22px 16px; }
}