/* Design System - Matching xiv-tc-toolbox */
:root {
    --bg-primary: #333;
    --bg-secondary: #222;
    --bg-card: #282828;
    --bg-card-hover: #363636;
    --text-primary: #eee;
    --text-secondary: #ccc;
    --text-muted: #999;
    --accent-color: #5C6E8E;
    --accent-gold: #917D54;
    --success-color: #5a9c69;
    --warning-color: #c9a227;
    --danger-color: #c94a4a;
    --border-color: #191919;
    --seal-color: #d4af37;
    --seal-glow: rgba(212, 175, 55, 0.4);
    --line-highlight: rgba(90, 156, 105, 0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    transition: background-color 0.2s, transform 0.1s;
}

.nav-btn:hover {
    transform: translateY(-1px);
}

.back-btn {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

.back-btn:hover {
    background-color: var(--bg-card-hover);
}

.nav-right {
    display: flex;
    gap: 0.75rem;
}

.discord-btn {
    background-color: #5865F2;
    color: white;
}

.discord-btn:hover {
    background-color: #4752c4;
}

.support-btn {
    background-color: var(--accent-gold);
    color: white;
}

.support-btn:hover {
    background-color: #7a6a48;
}

.header-content {
    text-align: center;
    padding: 1.5rem 1rem;
}

h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Main Content */
main {
    flex: 1;
    padding: 1.5rem 1rem;
    max-width: 700px;
    margin: 0 auto;
    width: 100%;
}

/* Decision Section */
.decision-section {
    margin-bottom: 1.5rem;
}

.decision-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, #2d2d2d 100%);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.decision-card.recommend-shuffle {
    border-color: var(--success-color);
    background: linear-gradient(135deg, #2a3a2d 0%, #283028 100%);
}

.decision-card.recommend-keep {
    border-color: var(--accent-gold);
    background: linear-gradient(135deg, #3a352a 0%, #302d28 100%);
}

.decision-card.recommend-maybe {
    border-color: var(--warning-color);
    background: linear-gradient(135deg, #3a3528 0%, #302e24 100%);
}

.decision-card.recommend-wait {
    border-color: var(--accent-color);
    background: linear-gradient(135deg, #2a2d3a 0%, #282a30 100%);
}

.decision-card.has-lines {
    border-color: var(--accent-gold);
    background: linear-gradient(135deg, #3a352a 0%, #302d28 100%);
}

.decision-card.unavailable {
    border-color: var(--text-muted);
    opacity: 0.8;
}

.decision-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.decision-icon {
    font-size: 2rem;
}

.decision-card h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
}

.decision-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.decision-details {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.decision-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 0.75rem;
}

.decision-stats .stat {
    color: var(--text-secondary);
}

.decision-stats .stat strong {
    color: var(--text-primary);
}

.decision-point-badge {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.25rem 0.75rem;
    background-color: var(--accent-gold);
    color: white;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Strategy Section */
.strategy-section {
    margin-bottom: 1.5rem;
    text-align: center;
}

.strategy-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.strategy-selector {
    display: inline-flex;
    gap: 0.25rem;
    background-color: var(--bg-card);
    padding: 0.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.strategy-btn {
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.strategy-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

.strategy-desc {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.strategy-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.strategy-recommend {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--accent-gold);
    margin-top: 0.25rem;
}

/* Board Section */
.board-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}

.board-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 280px;
    margin-bottom: 1rem;
    gap: 1rem;
}

.seal-counter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background-color: var(--bg-card);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.counter-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.counter-value {
    font-weight: 600;
    font-size: 1rem;
    color: var(--seal-color);
}

.shuffle-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.available {
    background-color: var(--success-color);
    box-shadow: 0 0 6px var(--success-color);
}

.status-dot.unavailable {
    background-color: var(--text-muted);
}

.board-container {
    margin-bottom: 1rem;
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 16px;
    background-color: var(--bg-card);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.cell {
    width: 56px;
    height: 56px;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.cell:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.cell.sealed {
    background-color: var(--bg-card);
    border-color: var(--seal-color);
    box-shadow: 0 0 12px var(--seal-glow);
}

.cell.sealed::after {
    content: '';
    width: 32px;
    height: 32px;
    background: radial-gradient(circle, var(--seal-color) 0%, #b8941f 100%);
    border-radius: 50%;
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.3), 0 2px 8px var(--seal-glow);
    animation: sealAppear 0.3s ease-out;
}

.cell.in-line {
    background-color: var(--line-highlight);
}

@keyframes sealAppear {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.cell.max-reached:not(.sealed) {
    cursor: not-allowed;
    opacity: 0.5;
}

.cell.max-reached:not(.sealed):hover {
    transform: none;
    border-color: var(--border-color);
}

.board-actions {
    display: flex;
    justify-content: center;
}

.reset-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.reset-btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-color);
}

/* Stats Section */
.stats-section {
    margin-bottom: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
}

.stat-card.highlight {
    border-color: var(--accent-gold);
    background: linear-gradient(135deg, var(--bg-card) 0%, #332e26 100%);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card.highlight .stat-value {
    color: var(--accent-gold);
}

.stat-hint {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Probability Section */
.probability-section {
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.probability-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.prob-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
}

.prob-card.baseline {
    opacity: 0.7;
}

.prob-header {
    margin-bottom: 0.75rem;
    text-align: center;
}

.prob-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.prob-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.prob-table {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.prob-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.35rem 0.5rem;
    background-color: var(--bg-primary);
    border-radius: 4px;
}

.prob-row.gold {
    background-color: rgba(145, 125, 84, 0.2);
    border: 1px solid var(--accent-gold);
}

.prob-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.prob-value {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Info Section */
.info-section {
    margin-bottom: 1.5rem;
}

.info-details {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 0.75rem;
}

.info-details summary {
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    user-select: none;
    transition: color 0.2s;
}

.info-details summary:hover {
    color: var(--text-primary);
}

.info-details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.info-content {
    padding: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.info-content p {
    margin-bottom: 0.75rem;
}

.info-content ul {
    margin: 0.75rem 0;
    padding-left: 1.25rem;
}

.info-content li {
    margin-bottom: 0.35rem;
}

.info-tip {
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border-radius: 6px;
    border-left: 3px solid var(--accent-color);
    margin-top: 0.75rem;
}

/* Strategy Table */
.strategy-table {
    margin: 1rem 0;
    overflow-x: auto;
}

.strategy-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.strategy-table th,
.strategy-table td {
    padding: 0.5rem 0.4rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.strategy-table th {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
}

.strategy-table td {
    background-color: var(--bg-card);
}

.strategy-table td.shuffle {
    background-color: rgba(90, 156, 105, 0.2);
    color: var(--success-color);
    font-weight: 600;
}

.strategy-table td.maybe {
    background-color: rgba(201, 162, 39, 0.2);
    color: var(--warning-color);
}

.strategy-table td.keep {
    background-color: rgba(92, 110, 142, 0.15);
    color: var(--text-muted);
}

.strategy-rules {
    margin-top: 1rem;
    padding-left: 1.25rem;
}

.strategy-rules li {
    margin-bottom: 0.35rem;
    font-size: 0.8rem;
}

/* Footer */
footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 1.25rem;
    text-align: center;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer .credits {
    margin-top: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

footer .credits a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer .credits a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

footer .copyright {
    margin-top: 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Credits list in info section */
.credits-list {
    list-style: none;
    padding-left: 0;
}

.credits-list li {
    padding: 0.5rem;
    background-color: var(--bg-primary);
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.credits-list a {
    color: var(--accent-color);
    text-decoration: none;
}

.credits-list a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 600px) {
    .navbar {
        flex-direction: column;
        gap: 0.75rem;
        padding: 0.75rem;
    }

    .nav-right {
        width: 100%;
        justify-content: center;
    }

    .header-content {
        padding: 1.25rem 1rem;
    }

    h1 {
        font-size: 1.4rem;
    }

    main {
        padding: 1rem;
    }

    .decision-card {
        padding: 1.25rem;
    }

    .decision-card h2 {
        font-size: 1.2rem;
    }

    .board-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .cell {
        width: 50px;
        height: 50px;
    }

    .cell.sealed::after {
        width: 28px;
        height: 28px;
    }

    .board-grid {
        gap: 6px;
        padding: 12px;
    }

    .stats-grid,
    .probability-grid {
        grid-template-columns: 1fr;
    }

    .strategy-table {
        font-size: 0.75rem;
    }

    .strategy-table th,
    .strategy-table td {
        padding: 0.4rem 0.25rem;
    }
}

@media (max-width: 400px) {
    .cell {
        width: 44px;
        height: 44px;
    }

    .cell.sealed::after {
        width: 24px;
        height: 24px;
    }

    .nav-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    .decision-icon {
        font-size: 1.5rem;
    }

    .decision-card h2 {
        font-size: 1.1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}