:root {
  --bg: #050816;
  --panel: rgba(13, 18, 38, 0.82);
  --text: #e5f0ff;
  --muted: #8fa3c7;
  --line: rgba(125, 149, 255, 0.22);
  --cyan: #22d3ee;
  --blue: #4f46e5;
  --purple: #a855f7;
  --green: #22c55e;
  --red: #ef4444;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --glow: 0 0 28px rgba(34, 211, 238, 0.20);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 20% 10%, rgba(79, 70, 229, 0.35), transparent 32%),
    radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.22), transparent 28%),
    radial-gradient(circle at 50% 100%, rgba(168, 85, 247, 0.18), transparent 36%),
    var(--bg);
  color: var(--text);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}
.hidden { display: none !important; }
.login-screen { min-height: 100vh; display: grid; place-items: center; padding: 18px; }
.login-card, .card, .stat-card {
  background: linear-gradient(145deg, rgba(15,23,42,.88), rgba(10,14,31,.72));
  border: 1px solid var(--line);
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(22px);
}
.login-card { width: 100%; max-width: 430px; padding: 28px; border-radius: 34px; }
.login-logo, .logo-mark {
  display: grid; place-items: center; color: white; font-weight: 950;
  background: linear-gradient(135deg, var(--cyan), var(--blue), var(--purple));
  box-shadow: 0 0 35px rgba(34,211,238,.32);
}
.login-logo { width: 70px; height: 70px; border-radius: 24px; margin-bottom: 18px; }
.login-card h2 { font-size: 30px; margin: 0; letter-spacing: -0.7px; }
header { padding: 26px 16px 82px; position: relative; overflow: hidden; }
header::after { content:""; position:absolute; right:-80px; top:-80px; width:260px; height:260px; border-radius:50%; background:rgba(34,211,238,.13); filter: blur(6px); }
.hero { max-width: 1120px; margin: auto; position: relative; z-index: 1; }
.top-row { display:flex; justify-content:space-between; align-items:center; gap:16px; }
.logo-mark { width:54px; height:54px; border-radius:19px; font-size:18px; }
.session-box { text-align:right; font-size:13px; font-weight:800; }
.mini-btn { padding:8px 12px; margin-top:7px; border-radius:12px; font-size:12px; box-shadow:none; }
header h1 { margin: 18px 0 6px; font-size: clamp(30px, 5vw, 48px); letter-spacing: -1.2px; }
header p, .hint, .small { color: var(--muted); line-height: 1.45; }
header p { max-width: 690px; margin: 0; }
.container { max-width: 1120px; margin: -58px auto 0; padding: 16px 16px 100px; position: relative; z-index: 2; }
.stats { display:grid; grid-template-columns: repeat(3, 1fr); gap:14px; }
.stat-card { border-radius: 28px; padding: 18px; min-height: 102px; display:flex; flex-direction:column; justify-content:space-between; }
.stat-card span { color: var(--muted); font-size:12px; text-transform:uppercase; font-weight:900; letter-spacing:.6px; }
.stat-card h2 { margin:0; font-size:36px; }
.card { border-radius: 28px; padding: 20px; }
.grid, .settings-grid { display:grid; grid-template-columns: 1fr 1fr; gap:16px; margin-top:16px; }
.tabs {
  display:grid; grid-template-columns: repeat(5, 1fr); gap:10px; margin: 16px 0; padding: 8px;
  border: 1px solid var(--line); border-radius: 22px; background: rgba(2,6,23,.55); backdrop-filter: blur(18px);
}
.tabs button { margin:0; box-shadow:none; background: transparent; border:1px solid transparent; color:var(--muted); }
.tabs button.active { color:white; border-color: rgba(34,211,238,.38); background: linear-gradient(135deg, rgba(34,211,238,.20), rgba(79,70,229,.28)); box-shadow: 0 0 22px rgba(34,211,238,.12); }
.tab-page { display:none; }
.tab-page.active { display:block; }
h3 { margin:0; letter-spacing:-.2px; }
.hint { font-size:13px; margin: 6px 0 12px; }
.small { font-size:13px; margin:7px 0; }
input, select, textarea, button {
  width: 100%; padding: 13px 14px; margin: 7px 0; border-radius: 16px;
  border: 1px solid var(--line); font-size: 15px; font-family: inherit; outline: none;
}
input, select, textarea { background: rgba(2,6,23,.68); color: var(--text); }
input:focus, select:focus, textarea:focus { border-color: rgba(34,211,238,.7); box-shadow: 0 0 0 4px rgba(34,211,238,.11); }
textarea { min-height: 102px; resize: vertical; }
button { color:white; border:none; cursor:pointer; font-weight:900; background: linear-gradient(135deg, #1e293b, #334155); box-shadow: 0 12px 28px rgba(0,0,0,.25); transition:.15s; }
button:hover { transform: translateY(-1px); filter: brightness(1.08); }
button:disabled { opacity:.62; cursor:not-allowed; transform:none; }
.primary { background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.whatsapp, .save { background: linear-gradient(135deg, #16a34a, #22c55e); }
.danger { background: linear-gradient(135deg, #dc2626, #ef4444); }
.edit { background: linear-gradient(135deg, #4f46e5, #a855f7); }
.cancel { background: linear-gradient(135deg, #475569, #64748b); }
.task { position:relative; overflow:hidden; border:1px solid var(--line); border-radius:24px; padding:16px; margin-bottom:12px; background:linear-gradient(145deg, rgba(15,23,42,.88), rgba(30,41,59,.52)); box-shadow:0 14px 35px rgba(0,0,0,.24); }
.task::before { content:""; position:absolute; left:0; top:0; bottom:0; width:5px; background:linear-gradient(var(--cyan), var(--purple)); }
.task-top { display:flex; justify-content:space-between; gap:10px; align-items:flex-start; }
.task-title { font-weight:950; font-size:17px; padding-left:4px; }
.badge { padding:7px 11px; border-radius:999px; font-size:12px; font-weight:950; white-space:nowrap; }
.pending { background:rgba(239,68,68,.16); color:#fca5a5; border:1px solid rgba(239,68,68,.30); }
.progress { background:rgba(245,158,11,.16); color:#fcd34d; border:1px solid rgba(245,158,11,.30); }
.done { background:rgba(34,197,94,.16); color:#86efac; border:1px solid rgba(34,197,94,.30); }
.meta-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:8px; margin:12px 0; }
.meta-item { background:rgba(2,6,23,.44); border:1px solid var(--line); border-radius:16px; padding:10px; color:var(--muted); font-size:13px; }
.meta-item b { display:block; color:var(--text); margin-top:3px; }
.actions, .edit-actions, .filters { display:grid; grid-template-columns:repeat(3,1fr); gap:9px; margin-top:10px; }
.edit-actions, .filters { grid-template-columns:1fr 1fr; }
.member-box { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:8px 0 10px; }
.member-check, .member-row { background:rgba(2,6,23,.52); border:1px solid var(--line); border-radius:16px; }
.member-check { display:flex; align-items:center; gap:8px; padding:12px; font-size:14px; font-weight:800; cursor:pointer; }
.member-check input { width:auto; margin:0; accent-color:var(--cyan); }
.member-row { display:flex; justify-content:space-between; align-items:center; gap:10px; padding:12px 14px; margin-bottom:8px; }
.member-row button { max-width:95px; padding:10px; }
.member-pill { display:inline-flex; padding:9px 12px; border-radius:999px; background:rgba(34,211,238,.10); border:1px solid rgba(34,211,238,.24); color:#a5f3fc; margin:4px; font-size:14px; font-weight:900; }
.empty-state { text-align:center; padding:25px; border:1px dashed rgba(143,163,199,.42); border-radius:22px; color:var(--muted); background:rgba(2,6,23,.38); }
.role-badge { display:inline-block; padding:6px 10px; border-radius:999px; background:rgba(168,85,247,.16); color:#d8b4fe; border:1px solid rgba(168,85,247,.28); font-weight:900; font-size:12px; }
.inline-form { display:flex; gap:8px; align-items:center; }
.inline-form button { max-width:120px; }
.list-space { margin-top:12px; }
@media (max-width: 760px) {
  header { padding-bottom:72px; }
  .grid, .settings-grid, .member-box, .meta-grid, .actions, .filters, .inline-form { grid-template-columns:1fr; display:grid; }
  .inline-form button { max-width:none; }
  .stats { gap:8px; }
  .stat-card { padding:13px 10px; border-radius:21px; min-height:86px; }
  .stat-card h2 { font-size:28px; }
  .stat-card span { font-size:10px; }
  .tabs { grid-template-columns:repeat(5, 1fr); position:sticky; bottom:0; z-index:5; border-radius:20px 20px 0 0; margin-bottom:0; }
  .tabs button { font-size:11px; padding:11px 4px; }
  .card { padding:16px; border-radius:23px; }
}