/* ═══ Components ═══ */

/* Cards */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.25rem;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--border-hover); }
.card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border);
}
.card-title { font-size: 1rem; font-weight: 600; color: var(--text); }

/* Signal cards */
.signal-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-left: 4px solid var(--border); border-radius: 10px;
  padding: 1rem; transition: all 0.15s;
}
.signal-card.long { border-left-color: var(--up); }
.signal-card.short { border-left-color: var(--down); }
.signal-card:hover { border-color: var(--primary); transform: translateY(-1px); }
.signal-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.signal-symbol { font-weight: 700; font-size: 1.05rem; }
.signal-direction {
  font-size: 0.8rem; padding: 2px 8px; border-radius: 4px;
  font-weight: 600; font-family: 'JetBrains Mono', monospace;
}
.signal-direction.long { background: rgba(16, 185, 129, 0.15); color: var(--up); }
.signal-direction.short { background: rgba(239, 68, 68, 0.15); color: var(--down); }
.signal-levels {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem; font-size: 0.85rem; margin-top: 0.75rem;
}
.signal-level { display: flex; justify-content: space-between; }
.signal-level .label { color: var(--text-muted); }
.signal-level .value { font-family: 'JetBrains Mono', monospace; }
.signal-score { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.75rem; font-size: 0.85rem; }
.score-bar { flex: 1; height: 6px; background: var(--bg); border-radius: 3px; overflow: hidden; }
.score-bar-fill { height: 100%; background: var(--primary); transition: width 0.3s; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem; padding: 0.6rem 1rem; border-radius: 8px;
  font-weight: 500; font-size: 0.92rem; transition: all 0.15s; white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-secondary { background: var(--bg-hover); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--primary); }
.btn-danger { background: var(--down); color: white; }
.btn-danger:hover:not(:disabled) { opacity: 0.9; }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.85rem; }
.btn-lg { padding: 0.85rem 1.5rem; font-size: 1rem; }
.btn-block { width: 100%; }

/* Form */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; margin-bottom: 0.4rem; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.65rem 0.85rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text);
  transition: border-color 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--primary); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-help { font-size: 0.78rem; color: var(--text-dim); margin-top: 0.25rem; }
.form-error { font-size: 0.8rem; color: var(--down); margin-top: 0.25rem; }
.form-checkbox { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
.form-checkbox input { accent-color: var(--primary); }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; font-size: 0.72rem; border-radius: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.badge-primary { background: rgba(124, 58, 237, 0.15); color: var(--primary); }
.badge-up { background: rgba(16, 185, 129, 0.15); color: var(--up); }
.badge-down { background: rgba(239, 68, 68, 0.15); color: var(--down); }
.badge-warn { background: rgba(245, 158, 11, 0.15); color: var(--warn); }
.badge-neutral { background: var(--bg-hover); color: var(--text-muted); }

.tier-badge { font-family: 'JetBrains Mono', monospace; font-weight: 700; padding: 3px 8px; border-radius: 4px; }
.tier-badge.a-plus { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: #111; }
.tier-badge.a { background: rgba(251, 191, 36, 0.2); color: #fbbf24; }
.tier-badge.b { background: rgba(124, 58, 237, 0.2); color: var(--primary); }
.tier-badge.c { background: var(--bg-hover); color: var(--text-muted); }

/* Toast */
#toast-host {
  position: fixed; top: 1rem; right: 1rem; z-index: 1000;
  display: flex; flex-direction: column; gap: 0.5rem; pointer-events: none;
}
.toast {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px;
  padding: 0.75rem 1rem; min-width: 240px; pointer-events: auto;
  animation: slideIn 0.25s ease-out; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.toast.success { border-left: 3px solid var(--up); }
.toast.error { border-left: 3px solid var(--down); }
.toast.info { border-left: 3px solid var(--primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Modal */
#modal-host { position: relative; z-index: 500; }
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6);
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  animation: fadeIn 0.2s;
}
.modal {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1.5rem; max-width: 480px; width: 100%; max-height: 90vh; overflow-y: auto;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.modal-title { font-size: 1.1rem; font-weight: 600; }
.modal-close { font-size: 1.5rem; cursor: pointer; color: var(--text-muted); }

/* Tables */
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
.table th { font-weight: 500; color: var(--text-muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; }
.table tr:hover { background: var(--bg-hover); }

/* Grid */
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }

/* Stats tiles */
.stat-tile { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.stat-tile .label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.stat-tile .value { font-size: 1.5rem; font-weight: 700; font-family: 'JetBrains Mono', monospace; }
.stat-tile .hint { font-size: 0.75rem; color: var(--text-dim); margin-top: 0.25rem; }

.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.empty-state-icon { font-size: 2.5rem; margin-bottom: 0.5rem; opacity: 0.6; }

.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; }
.tab { padding: 0.65rem 1rem; border-radius: 8px 8px 0 0; color: var(--text-muted); cursor: pointer; font-size: 0.9rem; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab:hover { color: var(--text); }