/* ==========================================================================
   Gold Set Scoring — NYT Editorial Style
   ========================================================================== */

:root {
    --serif: 'Libre Baskerville', Georgia, 'Times New Roman', serif;
    --sans: 'Source Sans 3', 'Helvetica Neue', Arial, sans-serif;

    --black: #121212;
    --dark: #333;
    --mid: #666;
    --light: #999;
    --rule: #e2e2e2;
    --bg: #fff;
    --bg-warm: #faf9f7;
    --accent: #326891;
    --accent-hover: #255580;

    /* Score gradient — muted tones */
    --score-0: #c0392b;
    --score-1: #d4644a;
    --score-2: #d4964a;
    --score-3: #bfac4e;
    --score-4: #6fa85c;
    --score-5: #27845a;
    --score-u: #999;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

body {
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    border-bottom: 2px solid var(--black);
    padding: 16px 0;
    margin-bottom: 40px;
}

.header-inner {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.site-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--black);
    letter-spacing: -0.02em;
}

.site-subtitle {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 400;
    color: var(--light);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.header-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 16px;
}

.rater-badge {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

.nav-link {
    font-size: 13px;
    color: var(--light);
}

/* ==========================================================================
   Content
   ========================================================================== */

.content {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-family: var(--serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--black);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 15px;
    color: var(--mid);
    margin-top: 4px;
}

.breadcrumb {
    font-size: 13px;
    color: var(--light);
    margin-bottom: 8px;
}

.breadcrumb a { color: var(--light); }
.breadcrumb a:hover { color: var(--accent); }

/* ==========================================================================
   Auth
   ========================================================================== */

.auth-container {
    max-width: 360px;
    margin: 80px auto;
    text-align: center;
}

.auth-container h1 {
    font-family: var(--serif);
    font-size: 28px;
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--mid);
    font-size: 15px;
    margin-bottom: 32px;
}

.auth-form input {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-family: var(--sans);
    font-size: 16px;
    border: 1px solid var(--rule);
    margin-bottom: 16px;
    outline: none;
    transition: border-color 0.15s;
}

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

.auth-form button {
    display: block;
    width: 100%;
    padding: 12px;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 600;
    background: var(--black);
    color: #fff;
    border: none;
    cursor: pointer;
    letter-spacing: 0.02em;
}

.auth-form button:hover {
    background: var(--dark);
}

/* ==========================================================================
   Flash messages
   ========================================================================== */

.flash-messages { margin-bottom: 24px; }

.flash {
    padding: 12px 16px;
    border-left: 3px solid var(--score-0);
    background: #fdf2f2;
    font-size: 14px;
    color: var(--score-0);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 8px 20px;
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    border: 1px solid;
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
}

.btn-primary {
    background: var(--black);
    color: #fff;
    border-color: var(--black);
}
.btn-primary:hover {
    background: var(--dark);
    color: #fff;
}

.btn-secondary {
    background: var(--bg);
    color: var(--dark);
    border-color: var(--rule);
}
.btn-secondary:hover {
    border-color: var(--dark);
}

.btn-nav {
    background: none;
    color: var(--dark);
    border-color: var(--rule);
    padding: 6px 16px;
    font-size: 13px;
}
.btn-nav:hover { border-color: var(--dark); color: var(--black); }
.btn-nav.disabled {
    color: var(--rule);
    cursor: default;
    pointer-events: none;
}

.btn-subtle {
    background: none;
    color: var(--light);
    border: 1px solid var(--rule);
    font-size: 13px;
    padding: 6px 14px;
    cursor: pointer;
}
.btn-subtle:hover { color: var(--dark); border-color: var(--dark); }

/* ==========================================================================
   Sessions
   ========================================================================== */

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.session-card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--rule);
}

.session-card:first-child { border-top: 1px solid var(--rule); }

.session-info { flex: 1; }

.session-name {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.session-name a { color: var(--black); }
.session-name a:hover { color: var(--accent); }

.session-meta {
    font-size: 14px;
    color: var(--mid);
    margin-top: 2px;
}

.session-raters {
    font-size: 13px;
    color: var(--light);
    margin-top: 2px;
}

.session-progress {
    width: 140px;
    text-align: center;
}

.progress-bar {
    height: 4px;
    background: var(--rule);
    width: 100%;
    overflow: hidden;
}

.progress-bar-lg { height: 6px; }

.progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.3s;
}

.progress-text {
    font-size: 13px;
    color: var(--mid);
    margin-top: 6px;
}

.session-actions {
    display: flex;
    gap: 8px;
}

/* ==========================================================================
   Claims list
   ========================================================================== */

.claims-progress-bar {
    margin-bottom: 24px;
}

.progress-label {
    font-size: 14px;
    color: var(--mid);
    margin-top: 8px;
}

.done-banner {
    background: var(--bg-warm);
    border: 1px solid var(--rule);
    padding: 20px 24px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.done-banner p {
    font-family: var(--serif);
    font-size: 16px;
    color: var(--dark);
}

.claims-list {
    border-top: 1px solid var(--rule);
}

.claim-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--rule);
    color: var(--dark);
    transition: background 0.1s;
}

.claim-row:hover { background: var(--bg-warm); }

.claim-status {
    width: 24px;
    text-align: center;
    font-size: 16px;
}

.claim-row.scored .claim-status { color: var(--score-5); }
.claim-row.unscored .claim-status { color: var(--light); }

.claim-order {
    width: 36px;
    font-size: 13px;
    color: var(--light);
    font-weight: 600;
}

.claim-preview {
    flex: 1;
    font-size: 14px;
    line-height: 1.4;
}

.claim-type-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--light);
    border: 1px solid var(--rule);
    padding: 2px 8px;
    white-space: nowrap;
}

/* ==========================================================================
   Scoring view
   ========================================================================== */

.scoring-layout {
    max-width: 680px;
}

.scoring-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 32px;
}

.nav-arrows {
    display: flex;
    align-items: center;
    gap: 8px;
}

.claim-select {
    font-family: var(--sans);
    font-size: 13px;
    padding: 6px 8px;
    border: 1px solid var(--rule);
    background: var(--bg);
    cursor: pointer;
}

.timer-display {
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--mid);
    font-variant-numeric: tabular-nums;
}

/* Claim card */
.claim-card {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--rule);
}

.claim-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.claim-date {
    font-size: 13px;
    color: var(--light);
}

.claim-text {
    font-family: var(--serif);
    font-size: 20px;
    line-height: 1.5;
    color: var(--black);
    border: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.tweet-context {
    margin-top: 20px;
    padding: 16px 20px;
    border-left: 3px solid var(--rule);
    background: var(--bg-warm);
}

.tweet-context h3 {
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--light);
    margin-bottom: 8px;
}

.tweet-text {
    font-size: 14px;
    color: var(--mid);
    line-height: 1.5;
    white-space: pre-wrap;
}

/* LLM toggle */
.llm-toggle {
    margin-top: 16px;
}

.llm-panel {
    margin-top: 12px;
    padding: 16px 20px;
    background: var(--bg-warm);
    border: 1px solid var(--rule);
}

.llm-panel.hidden { display: none; }

.llm-score {
    font-size: 15px;
    margin-bottom: 8px;
}

.llm-explanation {
    font-size: 14px;
    color: var(--mid);
    line-height: 1.5;
}

/* Scoring form */
.scoring-form h3 {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--mid);
    margin-bottom: 16px;
}

.score-buttons {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.score-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 14px 4px 10px;
    border: 2px solid var(--rule);
    background: var(--bg);
    cursor: pointer;
    transition: all 0.15s;
}

.score-btn:hover { border-color: var(--mid); }

.score-num {
    font-size: 22px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.score-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--light);
    text-align: center;
    line-height: 1.2;
}

/* Score button colors */
.score-btn.score-0 .score-num { color: var(--score-0); }
.score-btn.score-1 .score-num { color: var(--score-1); }
.score-btn.score-2 .score-num { color: var(--score-2); }
.score-btn.score-3 .score-num { color: var(--score-3); }
.score-btn.score-4 .score-num { color: var(--score-4); }
.score-btn.score-5 .score-num { color: var(--score-5); }

.score-btn.active.score-0 { border-color: var(--score-0); background: #fdf2f0; }
.score-btn.active.score-1 { border-color: var(--score-1); background: #fdf5f0; }
.score-btn.active.score-2 { border-color: var(--score-2); background: #fdf8f0; }
.score-btn.active.score-3 { border-color: var(--score-3); background: #fdfcf0; }
.score-btn.active.score-4 { border-color: var(--score-4); background: #f4faf0; }
.score-btn.active.score-5 { border-color: var(--score-5); background: #f0f9f4; }

/* Unscoreable */
.unscoreable-toggle {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--mid);
    cursor: pointer;
}

.toggle-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.unscoreable-select {
    font-family: var(--sans);
    font-size: 14px;
    padding: 6px 10px;
    border: 1px solid var(--rule);
    background: var(--bg);
}

.unscoreable-select.hidden { display: none; }

/* Form fields */
.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.hint {
    font-weight: 400;
    color: var(--light);
}

.form-field textarea {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.5;
    border: 1px solid var(--rule);
    outline: none;
    resize: vertical;
    transition: border-color 0.15s;
}

.form-field textarea:focus {
    border-color: var(--accent);
}

/* Save indicator */
.save-indicator {
    font-size: 13px;
    height: 20px;
    margin-top: 8px;
}

.save-indicator.saving { color: var(--light); }
.save-indicator.saved { color: var(--score-5); }
.save-indicator.error { color: var(--score-0); }

/* ==========================================================================
   Done / Summary
   ========================================================================== */

.done-summary {
    max-width: 540px;
    margin: 40px auto;
    text-align: center;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.summary-stat {
    padding: 20px 0;
    border-top: 2px solid var(--black);
}

.stat-value {
    display: block;
    font-family: var(--serif);
    font-size: 28px;
    font-weight: 700;
    color: var(--black);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--mid);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.done-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ==========================================================================
   Compare / Admin
   ========================================================================== */

.compare-section {
    margin-bottom: 48px;
}

.compare-section h2 {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--rule);
}

.section-note {
    font-size: 14px;
    color: var(--light);
    margin-bottom: 16px;
}

/* Data table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--light);
    padding: 8px 12px;
    border-bottom: 2px solid var(--black);
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--rule);
    vertical-align: top;
}

.claim-cell {
    font-size: 13px;
    line-height: 1.4;
    max-width: 340px;
}

/* Metrics grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric-card {
    padding: 20px 0;
    border-top: 2px solid var(--black);
    text-align: center;
}

.metric-value {
    display: block;
    font-family: var(--serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--black);
}

.metric-label {
    display: block;
    font-size: 12px;
    color: var(--mid);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Distributions */
.distributions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.dist-card h3 {
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.dist-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.dist-label {
    width: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--mid);
    text-align: right;
}

.dist-bar-track {
    flex: 1;
    height: 16px;
    background: var(--bg-warm);
}

.dist-bar-fill {
    height: 100%;
    transition: width 0.3s;
}

.dist-count {
    width: 24px;
    font-size: 13px;
    color: var(--mid);
    text-align: right;
}

/* Score colors for distribution bars and pills */
.score-color-0 { background: var(--score-0); }
.score-color-1 { background: var(--score-1); }
.score-color-2 { background: var(--score-2); }
.score-color-3 { background: var(--score-3); }
.score-color-4 { background: var(--score-4); }
.score-color-5 { background: var(--score-5); }
.score-color-u { background: var(--score-u); }

.score-pill {
    display: inline-block;
    width: 28px;
    text-align: center;
    padding: 2px 0;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
}

/* ==========================================================================
   Empty state
   ========================================================================== */

.empty-state {
    text-align: center;
    color: var(--light);
    padding: 60px 0;
    font-size: 15px;
    line-height: 1.8;
}

.empty-state code {
    display: inline-block;
    margin-top: 12px;
    font-size: 13px;
    background: var(--bg-warm);
    padding: 8px 12px;
    border: 1px solid var(--rule);
    word-break: break-all;
}

/* ==========================================================================
   Hidden utility
   ========================================================================== */

.hidden { display: none !important; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 640px) {
    .header-inner { flex-wrap: wrap; gap: 8px; }
    .session-card { flex-direction: column; align-items: flex-start; gap: 12px; }
    .session-progress { width: 100%; }
    .score-buttons { grid-template-columns: repeat(3, 1fr); }
    .metrics-grid { grid-template-columns: 1fr; }
    .scoring-nav { flex-direction: column; gap: 8px; }
}