/* --- Cards --- */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-5);
}

.card > :last-child {
    margin-bottom: 0;
}

.card--tight {
    padding: var(--space-4);
}

.card-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    margin: 0 0 var(--space-4);
    font-size: 1.1rem;
}

.card-title small {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
}

.section {
    margin-bottom: var(--space-6);
}

/* --- Buttons --- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 2.75rem;
    padding: 0 var(--space-5);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
    font-weight: 700;
    font-size: 0.98rem;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: default;
}

.btn-primary {
    border-color: var(--brand);
    background: var(--brand);
    color: var(--brand-contrast);
}

.btn-primary:hover {
    border-color: var(--brand-hover);
    background: var(--brand-hover);
    color: var(--brand-contrast);
}

.btn-ghost {
    border-color: transparent;
    background: transparent;
    color: var(--text-2);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    min-height: 2.25rem;
    padding: 0 var(--space-4);
    font-size: 0.9rem;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* --- Chips (length switcher, related queries) --- */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
    list-style: none;
}

.chip {
    display: inline-flex;
    align-items: center;
    min-height: 2.25rem;
    padding: 0 var(--space-3);
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text-2);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
}

a.chip:hover {
    border-color: var(--brand);
    color: var(--brand);
    text-decoration: none;
}

.chip.is-active {
    border-color: var(--brand);
    background: var(--brand);
    color: var(--brand-contrast);
}

/* --- Tile links (lengths, letters) --- */

.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(5.5rem, 1fr));
    gap: var(--space-2);
}

.tile-grid--letters {
    grid-template-columns: repeat(auto-fill, minmax(2.75rem, 1fr));
}

.tile-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 4.5rem;
    padding: var(--space-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
    transition: border-color 0.15s, transform 0.15s, background 0.15s;
}

.tile-link:hover {
    border-color: var(--brand);
    background: var(--brand-soft);
    color: var(--text);
    text-decoration: none;
    transform: translateY(-2px);
}

.tile-link-num {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1;
}

.tile-link-label {
    margin-top: var(--space-1);
    font-size: 0.8rem;
    color: var(--muted);
}

.tile-grid--letters .tile-link {
    min-height: 2.75rem;
    aspect-ratio: 1;
    font-size: 1.05rem;
    font-weight: 700;
}

/* --- Letter tiles (answer, word display) --- */

.letter-tiles {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}

.letter-tile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: clamp(2.75rem, 13vw, 3.75rem);
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    background: var(--tile-correct);
    color: var(--tile-text);
    font-size: clamp(1.4rem, 6vw, 2rem);
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.18);
}

.letter-tile--present {
    background: var(--tile-present);
}

.letter-tile--absent {
    background: var(--tile-absent);
}

.letter-tile--empty {
    background: var(--surface-2);
    border: 2px solid var(--border);
    color: var(--muted);
    box-shadow: none;
}

/* --- Pagination --- */

.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.pagination-status {
    color: var(--muted);
    font-size: 0.9rem;
}

/* --- Notes --- */

.note {
    margin: var(--space-2) 0;
    font-size: 0.92rem;
}

.note--ok {
    color: var(--ok);
}

.note--warn {
    color: var(--warn);
}

.cross-link {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-4);
    margin: var(--space-4) 0 var(--space-5);
    padding: var(--space-3) var(--space-4);
    border: 1px solid color-mix(in srgb, var(--brand) 30%, transparent);
    border-radius: var(--radius);
    background: var(--brand-soft);
    color: var(--text);
}

.cross-link__text {
    flex: 1 1 18rem;
}

.cross-link__go {
    flex: 0 0 auto;
    padding: var(--space-2) var(--space-4);
    border-radius: 999px;
    background: var(--brand);
    color: var(--brand-contrast);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.cross-link__go:hover {
    background: var(--brand-hover);
    color: var(--brand-contrast);
}

.empty-state {
    padding: var(--space-5);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    text-align: center;
    color: var(--muted);
}

/* --- Promo (T-Bank) --- */

.promo {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
    padding: var(--space-4) var(--space-5);
    border: 1px solid color-mix(in srgb, var(--tile-present) 45%, var(--border));
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--tile-present) 10%, var(--surface));
}

.promo-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    max-width: 36rem;
}

.promo-text strong {
    font-size: 1rem;
}

.promo-text span {
    color: var(--text-2);
    font-size: 0.92rem;
}

@media (max-width: 560px) {
    .promo {
        flex-direction: column;
        align-items: stretch;
    }
}

/* --- Sidebar --- */

.side-card {
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
}

.side-card h2 {
    margin: 0 0 var(--space-3);
    font-size: 0.95rem;
}

.side-links {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: var(--space-1);
}

.side-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    font-weight: 600;
    font-size: 0.92rem;
}

.side-links a:hover {
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
}

/* --- SEO / article text --- */

.prose {
    max-width: 46rem;
    color: var(--text-2);
}

.prose h2 {
    margin-top: var(--space-5);
}

.seo-text {
    margin: var(--space-6) 0;
    padding-top: var(--space-5);
    border-top: 1px solid var(--border);
    color: var(--text-2);
    max-width: 46rem;
}

.seo-text h2 {
    font-size: 1.1rem;
}

.seo-text + .seo-text {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

/* --- Ads: reserved height prevents layout shift when the creative loads --- */

.ad-slot {
    margin: var(--space-5) 0;
    min-height: 100px;
    border-radius: var(--radius);
    overflow: hidden;
}

.ad-slot.ad-feed {
    min-height: 250px;
}

.page-sidebar .ad-slot {
    margin: 0;
    min-height: 250px;
}

.ad-placeholder {
    min-height: inherit;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    background: var(--surface-2);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    color: var(--muted);
    font-size: 0.85rem;
}

.ad-placeholder--debug {
    background: #fff7ed;
    border-color: #fdba74;
    color: #9a3412;
}

.ad-placeholder-label {
    font-weight: 700;
}

.ad-placeholder-id {
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.ad-slot--debug {
    outline: 2px dashed #fdba74;
    outline-offset: 4px;
}

/* --- Dialog (PWA install) --- */

body.pwa-dialog-open {
    overflow: hidden;
}

.pwa-install-dialog[hidden] {
    display: none;
}

.pwa-install-dialog {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.pwa-install-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 20, 0.55);
}

.pwa-install-panel {
    position: relative;
    width: min(420px, 100%);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
}

.pwa-install-title {
    margin: 0 0 var(--space-3);
    font-size: 1.15rem;
}

.pwa-install-body {
    font-size: 0.95rem;
}

.pwa-install-steps {
    margin: 0;
    padding-left: 1.2rem;
}

.pwa-install-steps li + li {
    margin-top: var(--space-2);
}

.pwa-install-close {
    margin-top: var(--space-4);
}

/* --- Toast --- */

.toast {
    position: fixed;
    left: 50%;
    bottom: var(--space-5);
    z-index: 900;
    transform: translate(-50%, 1rem);
    padding: var(--space-2) var(--space-4);
    border-radius: 999px;
    background: var(--text);
    color: var(--bg);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
}

.toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}