:root {
    color-scheme: light;
    --page-bg: #f7f7f4;
    --text: #171717;
    --muted: #666;
    --panel: #fff;
    --panel-soft: #f7f5ef;
    --panel-softer: #fbfaf7;
    --border: #d0cec6;
    --border-strong: #9a9a92;
    --menu-hover: #f0ede4;
    --button-bg: #1d1d1b;
    --button-text: #fff;
    --link: #333;
    --active-word: #e8f4ff;
    --active-cell: #cfe8ff;
    --completed: #4f4f4f;
    --grid-line: #000;
    --cell-bg: #fff;
    --cell-text: #171717;
    --block-bg: #000;
    --danger: #8a2f2f;
    --error-bg: #fff0f0;
    --error-border: #c07d7d;
    --success-bg: #f0fff0;
    --success-border: #a6c7a6;
    --success-text: #245d24;
    --shadow: rgba(0, 0, 0, 0.18);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --page-bg: #11100e;
        --text: #eee9dd;
        --muted: #aaa397;
        --panel: #1b1916;
        --panel-soft: #25221e;
        --panel-softer: #201e1a;
        --border: #3c3831;
        --border-strong: #5f594e;
        --menu-hover: #302c26;
        --button-bg: #eee9dd;
        --button-text: #15130f;
        --link: #eee9dd;
        --active-word: #cbd7df;
        --active-cell: #aec2d0;
        --completed: #a8a196;
        --grid-line: #090807;
        --cell-bg: #ebe5d9;
        --cell-text: #171717;
        --block-bg: #050505;
        --danger: #ff9b9b;
        --error-bg: #3a1f1f;
        --error-border: #8e4f4f;
        --success-bg: #1d3322;
        --success-border: #4f7e58;
        --success-text: #bce8c4;
        --shadow: rgba(0, 0, 0, 0.42);
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --page-bg: #11100e;
    --text: #eee9dd;
    --muted: #aaa397;
    --panel: #1b1916;
    --panel-soft: #25221e;
    --panel-softer: #201e1a;
    --border: #3c3831;
    --border-strong: #5f594e;
    --menu-hover: #302c26;
    --button-bg: #eee9dd;
    --button-text: #15130f;
    --link: #eee9dd;
    --active-word: #cbd7df;
    --active-cell: #aec2d0;
    --completed: #a8a196;
    --grid-line: #090807;
    --cell-bg: #ebe5d9;
    --cell-text: #171717;
    --block-bg: #050505;
    --danger: #ff9b9b;
    --error-bg: #3a1f1f;
    --error-border: #8e4f4f;
    --success-bg: #1d3322;
    --success-border: #4f7e58;
    --success-text: #bce8c4;
    --shadow: rgba(0, 0, 0, 0.42);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --current-summary-bg: #26323b;
    }
}

:root[data-theme="dark"] {
    --current-summary-bg: #26323b;
}

body {
    font-family: Arial;
    margin: 20px;
    background: var(--page-bg);
    color: var(--text);
}

.crossword-page {
    display: grid;
    grid-template-columns: minmax(0, 500px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.puzzle-panel {
    display: grid;
    gap: 12px;
    min-width: 0;
}

.puzzle-header {
    display: flex;
    align-items: center;
    justify-content: start;
    gap: 12px;
    max-width: 500px;
}

.type-menu {
    position: relative;
    flex: 0 0 auto;
}

.type-menu summary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 10px;
    background: var(--panel);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.type-menu summary::-webkit-details-marker {
    display: none;
}

.chevron {
    font-size: 14px;
    line-height: 1;
}

.type-menu-list {
    position: absolute;
    left: 0;
    top: calc(100% + 6px);
    z-index: 6;
    display: grid;
    width: 190px;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px;
    background: var(--panel);
    box-shadow: 0 12px 28px var(--shadow);
}

.type-menu-list a {
    border-radius: 5px;
    padding: 7px 8px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
}

.type-menu-list a.active,
.type-menu-list a:hover {
    background: var(--menu-hover);
}

.account-menu {
    position: relative;
    flex: 0 0 auto;
}

.account-button,
.account-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #1f6f8b;
    color: var(--button-text);
    font-size: 13px;
    font-weight: 800;
}

.account-button {
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 8px var(--shadow);
    cursor: pointer;
}

.account-panel {
    position: absolute;
    left: 0;
    top: calc(100% + 8px);
    z-index: 5;
    width: min(360px, calc(100vw - 40px));
    box-sizing: border-box;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px;
    background: var(--panel);
    box-shadow: 0 18px 42px var(--shadow);
}

.account-panel[hidden],
.friends-panel[hidden] {
    display: none;
}

.account-name {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 10px;
    background: var(--panel-soft);
}

.account-avatar {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
}

.playmates-form,
.profile-form {
    display: grid;
    gap: 8px;
}

.playmates-form {
    grid-template-columns: 1fr auto;
    align-items: end;
    margin-top: 8px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--panel-softer);
}

.playmates-form button,
.menu-action,
.auth-form button {
    border: 1px solid var(--button-bg);
    border-radius: 4px;
    padding: 6px 10px;
    background: var(--button-bg);
    color: var(--button-text);
    font: inherit;
    cursor: pointer;
}

.playmates-form button {
    min-height: 36px;
}

.logout-form {
    margin: 0;
}

.menu-action {
    display: block;
    width: 100%;
    margin-top: 8px;
    box-sizing: border-box;
    border-color: transparent;
    border-radius: 8px;
    padding: 9px 10px;
    background: transparent;
    color: var(--link);
    text-align: left;
    text-decoration: none;
}

.menu-action:hover {
    background: var(--menu-hover);
}

#manage-friends-button[aria-expanded="true"] {
    background: var(--menu-hover);
    font-weight: 700;
}

.admin-link {
    color: var(--link);
    font-weight: 700;
}

.logout-form .menu-action {
    color: var(--danger);
}

.playmates-form label,
.profile-form label {
    display: grid;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
}

.playmates-form label {
    color: var(--muted);
}

.playmates-form input,
.profile-form input[type="color"],
.theme-form select,
.auth-form input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    padding: 6px 8px;
    font: inherit;
    background: var(--panel);
    color: var(--text);
}

.profile-form {
    margin: 8px 0;
    padding: 10px;
    border-radius: 10px;
    background: var(--panel-softer);
}

.theme-form {
    display: grid;
    gap: 5px;
    margin: 8px 0;
    padding: 10px;
    border-radius: 10px;
    background: var(--panel-softer);
}

.theme-form label {
    display: grid;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
}

.profile-form input[type="color"] {
    height: 36px;
    padding: 3px;
}

.playmates-status,
.profile-status {
    grid-column: 1 / -1;
    min-height: 16px;
    color: var(--muted);
    font-size: 12px;
}

.playmates-status {
    margin-top: -2px;
}

.playmates-status.error,
.profile-status.error {
    color: var(--danger);
}

/* GRID */
.grid {
    display: grid;
    grid-template-columns: repeat(var(--cols), 1fr);
    width: 100%;
    max-width: 500px;
    box-sizing: border-box;
    gap: 1px;
    padding: 2px;
    background: var(--grid-line);
}

.solver-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    max-width: 500px;
}

.solver-summary-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 7px 3px 3px;
    background: var(--panel);
}

button.solver-summary-item {
    cursor: pointer;
    font: inherit;
}

.solver-summary-item.current {
    border-color: var(--border-strong);
    background: var(--current-summary-bg, var(--active-word));
}

.solver-summary-item:not(.current) {
    opacity: 0.48;
}

.solver-summary-item.heatmap-enabled {
    opacity: 1;
    border-color: currentColor;
    box-shadow: 0 0 0 2px color-mix(in srgb, currentColor 18%, transparent);
}

.solver-summary-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #1f6f8b;
    color: var(--button-text);
    font-size: 10px;
    font-weight: 800;
}

.solver-summary-count {
    min-width: 12px;
    color: var(--link);
    font-size: 12px;
    font-weight: 800;
    text-align: center;
}

.add-friend-button {
    border: 1px dashed var(--border-strong);
    border-radius: 999px;
    padding: 6px 10px;
    background: transparent;
    color: var(--link);
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.add-friend-button:hover {
    background: var(--menu-hover);
}

.follow-suggestions {
    display: grid;
    gap: 8px;
    width: 100%;
    max-width: 500px;
}

.follow-banner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    background: color-mix(in srgb, var(--panel) 88%, var(--menu-hover));
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.follow-banner-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--button-text);
    font-size: 11px;
    font-weight: 800;
}

.follow-banner-message {
    min-width: 0;
    color: var(--text);
    font-size: 13px;
    line-height: 1.3;
}

.follow-banner-actions {
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

.follow-banner-action,
.follow-banner-dismiss {
    border-radius: 999px;
    padding: 5px 9px;
    font: inherit;
    font-size: 12px;
    font-weight: 750;
    cursor: pointer;
}

.follow-banner-action {
    border: 1px solid var(--link);
    background: var(--link);
    color: var(--button-text);
}

.follow-banner-dismiss {
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
}

.follow-banner-dismiss:hover {
    border-color: var(--border);
    background: var(--menu-hover);
    color: var(--text);
}

.cell {
    position: relative;
    aspect-ratio: 1;
    box-sizing: border-box;
    background: var(--cell-bg);
}

.cell.block {
    background: var(--block-bg);
}

.cell input {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    border: none;
    text-align: center;
    color: var(--cell-text);
    font-size: 18px;
    text-transform: uppercase;
    background: transparent;
    outline: none;
    box-sizing: border-box;
    padding: 0;
}

.number {
    position: absolute;
    top: 2px;
    left: 3px;
    color: var(--cell-text);
    font-size: 9px;
}

/* states */
.active-word {
    background: var(--active-word);
}

.active-cell {
    background: var(--active-cell);
}

.cell.social-heat:not(.block)::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        var(--heat-stripes, rgba(204, 188, 128, 0.35))
    );
    box-shadow: inset 0 0 0 1px rgba(34, 34, 34, calc(var(--heat-ring-alpha, 0.55) * 0.25));
    pointer-events: none;
}

.cell.social-heat:not(.block)::before {
    content: "";
    position: absolute;
    left: 2px;
    right: 2px;
    bottom: 2px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--heat-bars, #8a5914));
    z-index: 2;
    pointer-events: none;
}

.clues-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
    gap: 18px;
    max-width: 760px;
    min-width: 0;
}

.clue-list h3 {
    margin: 0 0 8px;
}

.clue {
    cursor: pointer;
    padding: 4px 6px;
    line-height: 1.35;
    border-radius: 4px;
}

.clue.active {
    background: var(--active-cell);
}

.clue.completed {
    color: var(--completed);
    font-style: italic;
    text-decoration: line-through;
}

.clue-solvers {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

.clue-solver {
    border: 1px solid currentColor;
    border-radius: 999px;
    padding: 1px 5px;
    background: var(--panel);
    font-size: 10px;
    font-weight: 700;
    line-height: 1.25;
}

@media (max-width: 980px) {
    body {
        margin: 12px;
    }

    .crossword-page {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .grid {
        width: 100%;
    }

    .clues-panel {
        grid-template-columns: 1fr;
        max-width: none;
    }

    .playmates-form {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .puzzle-header {
        align-items: center;
        flex-direction: row;
    }

    .type-menu {
        justify-self: start;
    }

    .follow-banner {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .follow-banner-actions {
        grid-column: 1 / -1;
        justify-content: flex-start;
    }

}

.auth-page {
    min-height: calc(100vh - 40px);
    display: grid;
    place-items: center;
}

.auth-form {
    width: min(100%, 340px);
    display: grid;
    gap: 14px;
}

.auth-form h1 {
    margin: 0;
    font-size: 24px;
}

.auth-form label {
    display: grid;
    gap: 5px;
    font-size: 13px;
    font-weight: 700;
}

.auth-form a {
    color: var(--link);
}

.form-error {
    border: 1px solid var(--error-border);
    border-radius: 4px;
    padding: 8px;
    background: var(--error-bg);
    color: var(--danger);
    font-size: 13px;
}

.admin-page {
    max-width: 1080px;
    margin: 0 auto;
    display: grid;
    gap: 18px;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.admin-header h1,
.admin-section h2 {
    margin: 0;
}

.admin-header a {
    color: var(--link);
}

.admin-theme {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.admin-theme select {
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    padding: 6px 8px;
    background: var(--panel);
    color: var(--text);
    font: inherit;
}

.admin-message,
.admin-error {
    border-radius: 6px;
    padding: 10px;
}

.admin-message {
    border: 1px solid var(--success-border);
    background: var(--success-bg);
    color: var(--success-text);
}

.admin-error {
    border: 1px solid var(--error-border);
    background: var(--error-bg);
    color: var(--danger);
}

.admin-section {
    display: grid;
    gap: 12px;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}

.admin-stats div {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    background: var(--panel);
}

.admin-stats strong {
    display: block;
    font-size: 24px;
}

.admin-stats span {
    color: var(--muted);
    font-size: 12px;
}

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--panel);
}

.admin-table th,
.admin-table td {
    border-bottom: 1px solid var(--border);
    padding: 8px;
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    color: var(--muted);
    font-size: 12px;
}

.admin-color-form {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
}

.admin-color-form input[type="color"] {
    width: 38px;
    height: 30px;
    padding: 2px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--panel);
}

.admin-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.admin-actions form {
    margin: 0;
}

.admin-page button {
    border: 1px solid var(--button-bg);
    border-radius: 4px;
    padding: 6px 9px;
    background: var(--button-bg);
    color: var(--button-text);
    font: inherit;
    cursor: pointer;
}

.admin-page .danger-button {
    border-color: var(--danger);
    background: var(--danger);
}