:root {
    --color-primary: #e63946;
    --color-secondary: #1d3557;
    --color-accent: #457b9d;
    --color-bg: #f8f9fa;
    --color-card-bg: #ffffff;
    --color-text: #212529;
    --color-muted: #6c757d;
    --color-border: #dee2e6;
    --radius: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --max-width: 800px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Header */
header {
    text-align: center;
    padding: 2rem 1rem 1.5rem;
    background: var(--color-secondary);
    color: #fff;
}

header h1 {
    margin: 0;
    font-size: 2rem;
    letter-spacing: 0.02em;
}

.subtitle {
    margin: 0.25rem 0 0;
    opacity: 0.85;
    font-size: 1rem;
}

/* Main */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.25rem 1rem 3rem;
}

/* Settings Panel */
#settings-panel {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    padding: 1rem;
    background: var(--color-card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.setting-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.setting-group select {
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.95rem;
    background: #fff;
}

.setting-group input[type="number"] {
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.95rem;
    background: #fff;
    width: 4.5rem;
}

.settings-btn {
    padding: 0.45rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    white-space: nowrap;
}

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

/* Pool Status */
.pool-status {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-muted);
    margin: 0 0 1rem;
}

/* Generate Button */
.generate-btn {
    display: block;
    width: 100%;
    padding: 0.9rem;
    font-size: 1.2rem;
    font-weight: 700;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    margin-bottom: 1.5rem;
    transition: opacity 0.15s;
}

.generate-btn:hover:not(:disabled) {
    opacity: 0.9;
}

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

/* Ability Cards */
.round-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 0.75rem;
}

.ability-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.ability-card {
    background: var(--color-card-bg);
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-primary);
    animation: fadeIn 0.25s ease-out;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.reroll-btn {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 1.6rem;
    height: 1.6rem;
    padding: 0;
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1;
    color: var(--color-muted);
    flex-shrink: 0;
    transition: background 0.1s, color 0.1s, border-color 0.1s;
}

.reroll-btn:hover {
    background: var(--color-bg);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.ability-card h3 {
    margin: 0.25rem 0 0.5rem;
    font-size: 1.1rem;
}

.ability-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-muted);
    line-height: 1.5;
}

.gen-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    background: var(--color-secondary);
    color: #fff;
    border-radius: 12px;
}

.gen-badge-sm {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 1px 6px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 10px;
    margin-left: auto;
}

/* Placeholder */
.placeholder {
    text-align: center;
    color: var(--color-muted);
    padding: 2rem 0;
    font-size: 1rem;
}

/* History */
#history h2 {
    font-size: 1rem;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.history-round {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.history-round:last-of-type {
    border-bottom: none;
}

.link-btn {
    background: none;
    border: none;
    color: var(--color-accent);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0.5rem 0;
    text-decoration: underline;
}

.link-btn:hover {
    color: var(--color-primary);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
}

.modal-content {
    position: relative;
    background: #fff;
    border-radius: var(--radius);
    padding: 1.5rem;
    width: 90%;
    max-width: 550px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.modal-content h2 {
    margin: 0 0 0.25rem;
    font-size: 1.2rem;
}

.modal-hint {
    margin: 0 0 0.75rem;
    font-size: 0.85rem;
    color: var(--color-muted);
}

/* Preset buttons */
.preset-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.6rem;
}

.preset-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.preset-btn {
    padding: 0.2rem 0.65rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: #fff;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.1s, color 0.1s, border-color 0.1s;
}

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

.preset-btn.active {
    background: var(--color-secondary);
    color: #fff;
    border-color: var(--color-secondary);
}

#exclusion-search {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.modal-actions-top {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.exclusion-list {
    flex: 1;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.25rem 0;
    min-height: 200px;
}

.exclusion-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.75rem;
    cursor: pointer;
    font-size: 0.9rem;
}

.exclusion-item:hover {
    background: var(--color-bg);
}

.exclusion-item input[type="checkbox"] {
    flex-shrink: 0;
}

.exclusion-item .ability-name {
    flex: 1;
}

.modal-actions-bottom {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.small-btn {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: #fff;
    font-size: 0.85rem;
    cursor: pointer;
}

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

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

.small-btn.primary:hover {
    opacity: 0.9;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5rem;
    }

    .ability-cards {
        grid-template-columns: 1fr;
    }

    #settings-panel {
        flex-direction: column;
        align-items: stretch;
    }

    .setting-group {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
}