/* Retroactive Tagging Tool — Two-Panel Layout with Phase Timeline */

:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-hover: #232736;
    --border: #2a2e3a;
    --text: #e4e4e7;
    --text-muted: #9ca3af;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --green: #22c55e;
    --orange: #f59e0b;
    --red: #ef4444;
    --superset: #3b82f6;
    --circuit: #22c55e;
    --strength-bg: rgba(59, 130, 246, 0.12);
    --strength-border: rgba(59, 130, 246, 0.3);
    --throwing-bg: rgba(245, 158, 11, 0.12);
    --throwing-border: rgba(245, 158, 11, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.header h1 {
    font-size: 18px;
    font-weight: 600;
    white-space: nowrap;
}

.header-controls {
    display: flex;
    gap: 12px;
    flex: 1;
    align-items: center;
}

.header-controls select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 14px;
    min-width: 260px;
    cursor: pointer;
}

.header-controls select:focus {
    outline: none;
    border-color: var(--accent);
}

.header-controls select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Stream filter buttons */
.stream-filter {
    display: flex;
    gap: 4px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px;
}

.stream-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: 4px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.stream-btn:hover {
    color: var(--text);
    background: var(--surface-hover);
}

.stream-btn.active {
    background: var(--accent);
    color: white;
}

/* Loading indicator */
.loading-indicator {
    color: var(--text-muted);
    font-size: 13px;
    display: none;
    align-items: center;
    gap: 6px;
}

.loading-indicator.active {
    display: flex;
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Main layout */
.main {
    display: flex;
    height: calc(100vh - 53px);
}

/* Left panel */
.panel-left {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* Phase timeline (scrollable top section) */
.phase-timeline {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    max-height: 45vh;
    overflow-y: auto;
    flex-shrink: 0;
}

.timeline-header {
    margin-bottom: 8px;
}

.timeline-count {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* Phase card */
.phase-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.phase-card:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
}

.phase-card.selected {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.08);
    box-shadow: 0 0 0 1px var(--accent);
}

.phase-card-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.phase-date-range {
    font-size: 14px;
    font-weight: 500;
}

.phase-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.phase-card-names {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.phase-card-created {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.6;
    margin-top: 4px;
}

/* Stream badges */
.stream-badge {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: 10px;
    flex-shrink: 0;
}

.stream-badge.strength {
    background: var(--strength-bg);
    color: var(--accent);
    border: 1px solid var(--strength-border);
}

.stream-badge.throwing {
    background: var(--throwing-bg);
    color: var(--orange);
    border: 1px solid var(--throwing-border);
}

/* Program detail (below timeline) */
.program-detail {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.detail-header {
    margin-bottom: 12px;
}

.detail-stats {
    font-size: 13px;
    color: var(--text-muted);
}

/* Right panel — Tagging form */
.panel-right {
    width: 420px;
    min-width: 420px;
    overflow-y: auto;
    padding: 16px;
    background: var(--surface);
    border-left: 1px solid var(--border);
}

/* Empty state */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    color: var(--text-muted);
    text-align: center;
    gap: 8px;
    padding: 24px;
}

.empty-state .icon {
    font-size: 48px;
    opacity: 0.3;
}

.empty-state p {
    font-size: 14px;
}

/* Week group */
.week-group {
    margin-bottom: 16px;
}

.week-label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}

/* Workout card */
.workout-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.workout-header {
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}

.workout-header:hover {
    background: var(--surface-hover);
}

.workout-header .chevron {
    font-size: 12px;
    transition: transform 0.15s;
    color: var(--text-muted);
}

.workout-header.open .chevron {
    transform: rotate(90deg);
}

.workout-header .name {
    font-size: 14px;
    font-weight: 500;
    flex: 1;
}

.workout-date {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

.workout-body {
    display: none;
    padding: 0 14px 10px;
}

.workout-body.open {
    display: block;
}

/* Block */
.block {
    margin-bottom: 10px;
}

.block-header {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.block-header.normal {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.block-header.superset {
    background: rgba(59, 130, 246, 0.15);
    color: var(--superset);
}

.block-header.circuit {
    background: rgba(34, 197, 94, 0.15);
    color: var(--circuit);
}

.block-type-badge {
    font-size: 10px;
    opacity: 0.7;
}

/* Exercise row */
.exercise-row {
    display: flex;
    align-items: baseline;
    padding: 3px 8px 3px 16px;
    font-size: 13px;
    gap: 8px;
}

.exercise-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

.exercise-name {
    flex: 1;
    color: var(--text);
}

.exercise-prescription {
    color: var(--text-muted);
    font-size: 12px;
    white-space: nowrap;
}

/* Right panel form */
.form-section {
    margin-bottom: 20px;
}

.form-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.form-group select,
.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 13px;
    font-family: inherit;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 60px;
    resize: vertical;
}

.form-group .checkbox-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group .checkbox-wrap input[type="checkbox"] {
    width: auto;
}

/* Multi-select pills */
.multi-select-container {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}

.multi-pill {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
    transition: all 0.15s;
}

.multi-pill.selected {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.multi-pill:hover {
    border-color: var(--accent);
}

/* Submit button */
.btn-submit {
    width: 100%;
    padding: 10px 16px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-submit:hover {
    background: var(--accent-hover);
}

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* JSON preview modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 24px;
}

.modal h3 {
    margin-bottom: 12px;
    font-size: 16px;
}

.modal pre {
    background: var(--bg);
    padding: 16px;
    border-radius: 8px;
    font-size: 12px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.modal .btn-close {
    margin-top: 12px;
    padding: 8px 16px;
    background: var(--border);
    color: var(--text);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
}

.modal .btn-close:hover {
    background: var(--surface-hover);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}