*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0f;
  --bg2: #12121a;
  --bg3: #1a1a26;
  --border: rgba(255,255,255,.07);
  --text: #f0f0f8;
  --text2: #8888a8;
  --text3: #555570;
  --accent: #6c63ff;
  --accent2: #8b83ff;
  --blue: #4f8ef7;
  --orange: #f97316;
  --purple: #a855f7;
  --green: #22c55e;
  --radius: 16px;
  --radius-sm: 10px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ─── Screens ─────────────────────────────────────────────────────────────── */
.screen { display: none; min-height: 100vh; }
.screen.active { display: flex; }
.screen.hidden { display: none !important; }

/* ─── Login ───────────────────────────────────────────────────────────────── */
#screen-login {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(108,99,255,.15) 0%, transparent 60%),
              var(--bg);
  padding: 2rem 1.5rem;
}

.login-wrap {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.brand {
  text-align: center;
}

.brand-icon {
  font-size: 3.5rem;
  line-height: 1;
  margin-bottom: .75rem;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -.03em;
}

.brand p {
  color: var(--text2);
  font-size: .95rem;
  margin-top: .25rem;
}

.status-line {
  font-size: .85rem;
  color: var(--text2);
  text-align: center;
  min-height: 1.2em;
}

.status-line.error { color: #f87171; }
.status-line.success { color: var(--green); }

/* Biometric button */
.btn-bio {
  width: 100%;
  max-width: 280px;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--blue) 100%);
  border: none;
  border-radius: 14px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  transition: opacity .15s, transform .15s;
  box-shadow: 0 8px 32px rgba(108,99,255,.35);
}

.btn-bio:active { opacity: .85; transform: scale(.97); }
.btn-bio.hidden { display: none; }

.bio-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

/* Setup */
.setup-hint {
  color: var(--text2);
  font-size: .875rem;
  text-align: center;
}

.setup-form {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  width: 100%;
  max-width: 300px;
}

.setup-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  color: var(--text);
  font-size: .95rem;
  outline: none;
  transition: border-color .15s;
  width: 100%;
}

.setup-input:focus { border-color: var(--accent); }

.btn-setup {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  color: var(--text);
  font-size: .9rem;
  cursor: pointer;
  transition: background .15s;
}

.btn-setup:hover { background: var(--accent); border-color: var(--accent); }

/* ─── Dashboard ────────────────────────────────────────────────────────────── */
#screen-dashboard {
  flex-direction: column;
  background: var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  background: rgba(10,10,15,.8);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  font-size: 1.1rem;
}

.topbar-icon {
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar-logout {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .4rem;
  cursor: pointer;
  color: var(--text2);
  display: flex;
  align-items: center;
  transition: color .15s, border-color .15s;
}

.topbar-logout:hover { color: var(--text); border-color: rgba(255,255,255,.2); }
.topbar-logout svg { width: 18px; height: 18px; }

.dashboard {
  flex: 1;
  padding: 2rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.dash-greeting {
  margin-bottom: 2rem;
}

.dash-greeting h2 {
  font-size: 1.75rem;
  font-weight: 700;
}

.dash-greeting p {
  color: var(--text2);
  font-size: .9rem;
  margin-top: .2rem;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color .2s, transform .2s;
}

.card:hover {
  border-color: rgba(255,255,255,.12);
  transform: translateY(-1px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: .875rem;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.card-icon-blue { background: rgba(79,142,247,.15); }
.card-icon-orange { background: rgba(249,115,22,.15); }
.card-icon-purple { background: rgba(168,85,247,.15); }

.card-title {
  font-size: 1rem;
  font-weight: 600;
}

.card-sub {
  font-size: .8rem;
  color: var(--text2);
  margin-top: .1rem;
}

.card-desc {
  color: var(--text2);
  font-size: .875rem;
  line-height: 1.55;
}

.card-link {
  display: inline-block;
  color: var(--accent2);
  font-size: .875rem;
  font-weight: 500;
  text-decoration: none;
  margin-top: auto;
  transition: color .15s;
}

.card-link:hover { color: #fff; }

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
}

.stat-item {
  text-align: center;
  background: var(--bg3);
  border-radius: var(--radius-sm);
  padding: .75rem .5rem;
}

.stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.stat-label {
  font-size: .7rem;
  color: var(--text3);
  margin-top: .3rem;
}

/* ─── Spinner ─────────────────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: auto;
}

/* ─── Utility ─────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

@media (max-width: 480px) {
  .dashboard { padding: 1.5rem 1rem; }
  .cards-grid { grid-template-columns: 1fr; }
}