:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262a33;
  --text: #e8eaed;
  --text-dim: #9aa0ac;
  --green: #4ade80;
  --red: #f87171;
  --accent: #4ade80;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.hidden { display: none !important; }

/* auth tabs */
.auth-tabs { display: flex; gap: 4px; background: var(--bg); border-radius: 8px; padding: 4px; margin-bottom: 16px; }
.auth-tab { flex: 1; background: transparent; border: none; color: var(--text-dim); padding: 8px; border-radius: 6px; cursor: pointer; font-size: 0.9rem; }
.auth-tab.active { background: var(--accent); color: #0f1115; font-weight: 600; }
.auth-btn { width: 100%; margin-top: 4px; }
.auth-divider { display: flex; align-items: center; gap: 8px; margin: 16px 0; color: var(--text-dim); font-size: 0.8rem; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
#web-auth-form label { display: block; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 12px; }
#web-auth-form input { width: 100%; margin-top: 4px; padding: 8px 10px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-size: 0.9rem; }

/* login */
.screen.login-screen,
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  max-width: 380px;
}

.login-card h1 { margin: 0 0 8px; font-size: 1.6rem; }
.subtitle { color: var(--text-dim); margin-bottom: 24px; }
.login-note { color: var(--text-dim); font-size: 0.8rem; margin-top: 16px; }

/* loading overlay */
#loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 17, 21, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  border-radius: 12px;
}
.loading-text { color: var(--text-dim); font-size: 1rem; }

/* dashboard */
#dashboard-screen { max-width: 960px; margin: 0 auto; padding: 24px 20px 60px; position: relative; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
header h1 { margin: 0; font-size: 1.4rem; }
.header-right { display: flex; align-items: center; gap: 12px; }

.badge {
  background: #3a2f14;
  color: #facc15;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
}

.btn-primary, .btn-ghost {
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #0f1115; font-weight: 600; }
.btn-ghost { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); }

.totals-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-label { font-size: 0.8rem; color: var(--text-dim); }
.stat-value { font-size: 1.2rem; font-weight: 600; }
.pl-positive { color: var(--green); }
.pl-negative { color: var(--red); }

.chart-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 24px;
}
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.chart-header h2 { margin: 0; font-size: 1.05rem; }
.chart-title-row { display: flex; align-items: center; gap: 10px; }
.chart-gain-badge { font-size: 0.85rem; font-weight: 600; }
.chart-toggle { display: flex; gap: 4px; background: var(--bg); border-radius: 8px; padding: 4px; }
.toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}
.toggle-btn.active { background: var(--accent); color: #0f1115; font-weight: 600; }
.chart-note { color: var(--text-dim); font-size: 0.78rem; margin: 12px 0 0; }

.holdings-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-header h2 { margin: 0; font-size: 1.05rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 8px; font-size: 0.9rem; }
th { color: var(--text-dim); font-weight: 500; border-bottom: 1px solid var(--border); }
td { border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }

.empty-note { color: var(--text-dim); text-align: center; padding: 24px 0; }

/* modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.modal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 320px;
}
.modal-card h2 { margin: 0 0 16px; font-size: 1.1rem; }
#tx-form label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}
#tx-form input, #tx-form select {
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.form-error { color: var(--red); font-size: 0.82rem; }

/* stock detail modal */
.detail-card { width: 360px; }
.detail-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.detail-header h2 { margin: 0; font-size: 1.2rem; }
.detail-subtitle { color: var(--text-dim); font-size: 0.85rem; margin: 0 0 16px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.detail-item { display: flex; flex-direction: column; gap: 2px; }
.detail-label { font-size: 0.78rem; color: var(--text-dim); }
.detail-val { font-size: 0.95rem; font-weight: 500; }

/* clickable symbol in holdings table */
.clickable-symbol { cursor: pointer; color: var(--accent); font-weight: 600; }
.clickable-symbol:hover { text-decoration: underline; }

@media (max-width: 600px) {
  .totals-row { grid-template-columns: repeat(2, 1fr); }
  table { font-size: 0.8rem; }
  th, td { padding: 8px 4px; }
  .detail-card { width: 90vw; }
}