/**
 * RSite — Settings Panel  v1.0
 * Depends on: base.css (variables, matte-plastic)
 *
 * Expandable panel inside .chapter-navbar.
 * Contains: header, user profile widget, font/size/theme controls.
 */

/* 
   CONTAINER — grid-rows collapse
*/

.settings-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.settings-panel.active {
    grid-template-rows: 1fr;
}

.settings-panel-inner {
    overflow: hidden;
    min-height: 0;
}

.settings-panel-content {
    padding: 5px 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* 
   HEADER
*/

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.settings-header__title {
    font-family: var(--font-heading);
    font-size: 0.95em;
    color: var(--gold-accent);
    letter-spacing: 0.04em;
}

.settings-header__close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
}

.settings-header__close:hover {
    background: var(--bg-hover-medium);
    border-color: var(--glass-border-hover);
    color: var(--text-secondary);
}

.settings-header__close svg {
    width: 14px;
    height: 14px;
}

/*
   PROFILE WIDGET — 3-column row
*/

.settings-profile {
    display: flex;
    gap: 8px;
    padding: 0;
    margin-bottom: 4px;
}

/* -- Col 1: Avatar + info + logout -- */

.settings-profile__user {
    display: flex;
    gap: 10px;
    align-items: stretch;
    flex-shrink: 0;
    min-width: 260px;
    padding-right: 10px;
}

.settings-profile__avatar {
    align-self: stretch;
    aspect-ratio: 1;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--accent-bg-hover);
    border: 1px solid var(--accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.1em;
    font-weight: 600;
    color: var(--gold-accent);
    letter-spacing: 0.02em;
    overflow: hidden;
}

.settings-profile__avatar-img {
    /* .avatar-img handles sizing */
}

.settings-profile__avatar--guest {
    font-size: 1.1em;
    font-weight: 400;
    opacity: 0.5;
}

.settings-profile__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.settings-profile__link {
    display: flex;
    flex-direction: column;
    gap: 1px;
    text-decoration: none;
}

.settings-profile__name {
    font-family: var(--font-heading);
    font-size: 1.15em;
    color: var(--gold-accent);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

.settings-profile__goto {
    font-size: 0.68em;
    color: var(--text-muted);
    white-space: nowrap;
}

.settings-profile__logout-form {
    margin: 0;
    padding: 0;
    margin-top: auto;
}

.settings-profile__logout-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-default);
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.85em;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--duration-fast) ease;
}

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

.settings-profile__logout-arrow {
    opacity: 0.4;
    transition: transform var(--duration-fast) ease;
}

.settings-profile__logout-btn:hover .settings-profile__logout-arrow {
    transform: translateX(2px);
}

/* -- Col 2: Stats (notifications + achievements) -- */

/* Right zone: tiles + font-preview overlay */
.settings-profile__right {
    flex: 2.2;
    min-width: 0;
    position: relative;
    min-height: 72px;
}

.settings-profile__tiles {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    transition: opacity 0.35s ease;
}

.settings-profile__tiles.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.settings-profile__stats {
    flex: 1;
}

.settings-mini-double {
    display: flex;
    gap: 0;
    height: 100%;
    border-radius: 8px;
    background: var(--surface-overlay-light);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
}

.settings-mini-half {
    flex: 1;
    padding: 6px 10px;
    text-align: center;
}

.settings-mini-half--link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: background var(--duration-fast) ease;
    border-radius: 0 8px 8px 0;
}

.settings-mini-half--link:hover {
    background: var(--bg-hover-medium);
}

.settings-mini-vline {
    width: 1px;
    background: var(--bg-hover-medium);
}

.settings-mini-head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-bottom: 2px;
}

.settings-mini-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.settings-mini-badge {
    font-size: 9px;
    padding: 1px 5px;
    border-radius: var(--radius-full);
    background: var(--accent-bg);
    color: var(--gold-accent);
    font-family: var(--font-mono);
}

.settings-mini-badge--new {
    background: var(--success-bg);
    color: var(--success);
}

.settings-mini-val {
    font-family: var(--font-heading);
    font-size: 1.15em;
    color: var(--text-primary);
    line-height: 1.2;
}

.settings-mini-sub {
    font-size: 10px;
    color: var(--text-muted);
    line-height: 1.25;
}

/* -- Col 3: News -- */

.settings-profile__news {
    flex: 1.2;
    min-width: 0;
}

.settings-mini-news {
    height: 100%;
    padding: 6px 10px;
    border-radius: 8px;
    background: var(--surface-overlay-light);
    border: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
}

.settings-news-lines {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-top: 3px;
}

.settings-news-line {
    display: flex;
    align-items: flex-start;
    gap: 5px;
}

.settings-news-dot {
    width: 4px;
    height: 4px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--gold-accent);
    opacity: 0.5;
    margin-top: 5px;
}

.settings-news-text {
    font-size: 10.5px;
    color: var(--text-secondary);
    line-height: 1.3;
}

/* 
   SECTION & LABEL (shared)
*/

.settings-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.settings-label {
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    user-select: none;
}

.settings-divider {
    height: 1px;
    margin: 10px 0;
    background: var(--accent-bg-hover);
}

/*
   SHARED OPTION CARD (font / theme / accent)
*/

.settings-font-card,
.settings-theme-card,
.settings-accent-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 7px 4px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    color: var(--text-secondary);
    opacity: 0.55;
    transition:
        background var(--duration-fast) ease,
        border-color var(--duration-fast) ease,
        opacity var(--duration-fast) ease;
}

.settings-font-card:hover,
.settings-theme-card:hover,
.settings-accent-card:hover {
    opacity: 0.8;
    background: var(--bg-hover-medium);
}

.settings-font-card.is-active,
.settings-theme-card.is-active,
.settings-accent-card.is-active {
    opacity: 1;
    border-color: var(--accent-border-active);
    background: var(--accent-bg);
    color: var(--gold-accent);
}

/*
   FONT SELECTION CARDS
*/

.settings-font-grid {
    display: flex;
    gap: 7px;
}

.settings-font-card__preview {
    font-size: 22px;
    line-height: 1;
}

.settings-font-card__name {
    font-size: 10px;
    opacity: 0.7;
}

.settings-font-card--more .settings-font-card__preview {
    font-size: 14px;
    letter-spacing: 2px;
}

/* ── Font dropdown (shown for "Другой") ── */

.settings-font-dropdown {
    margin-top: 4px;
    animation: settings-fadein 0.18s ease;
}

.settings-font-dropdown[hidden] {
    display: none;
}

.settings-font-dropdown select {
    width: 100%;
}

/* 
   TEXT SIZE SLIDER
*/

.settings-size-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.settings-size-icon {
    color: var(--text-muted);
    user-select: none;
    flex-shrink: 0;
}

.settings-size-icon--sm {
    font-size: 12px;
}

.settings-size-icon--lg {
    font-size: 20px;
}

.settings-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    border-radius: 2px;
    background: var(--border-bright);
    outline: none;
    cursor: pointer;
}

.settings-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: var(--slider-thumb-size);
    height: var(--slider-thumb-size);
    background: var(--gold-accent);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--slider-thumb-shadow);
    transition: box-shadow var(--duration-fast) ease, transform 0.12s ease;
}

.settings-slider::-webkit-slider-thumb:hover {
    box-shadow: var(--slider-thumb-shadow-hover);
    transform: scale(1.15);
}

.settings-slider::-moz-range-thumb {
    width: var(--slider-thumb-size);
    height: var(--slider-thumb-size);
    background: var(--gold-accent);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--slider-thumb-shadow);
}

.settings-slider::-moz-range-track {
    background: var(--border-bright);
    border-radius: 2px;
    height: 3px;
}

.settings-size-value {
    font-size: 11px;
    color: var(--text-muted);
    min-width: 28px;
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-family: var(--font-mono);
}

/* 
   THEME SELECTION CARDS
*/

.settings-theme-grid {
    display: flex;
    gap: 7px;
}

.settings-theme-card__preview {
    width: 100%;
    height: 28px;
    border-radius: 5px;
    overflow: hidden;
    display: flex;
    border: 1px solid var(--border-medium);
}

.settings-theme-card__preview--light {
    background: linear-gradient(90deg, #ffffff 60%, #f0ece4 100%);
}

.settings-theme-card__preview--dark {
    background: linear-gradient(90deg, #1c1c1c 60%, #111111 100%);
}

.settings-theme-card__preview--latte {
    background: linear-gradient(90deg, #2B1A0D 60%, #3A2415 100%);
}

.settings-theme-card__name {
    font-size: 10px;
}

/* ── Custom theme link ── */

.settings-custom-theme-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    margin-top: 6px;
    border-radius: 8px;
    border: 1px solid var(--border-medium);
    text-decoration: none;
    color: inherit;
    opacity: 0.7;
    transition:
        opacity var(--duration-fast) ease,
        background var(--duration-fast) ease,
        border-color var(--duration-fast) ease;
}

.settings-custom-theme-link:hover {
    opacity: 1;
    background: var(--bg-hover-medium);
    border-color: var(--border-vivid);
}

.settings-custom-theme-link__text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.settings-custom-theme-link__text strong {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
}

.settings-custom-theme-link__text small {
    font-size: 10px;
    opacity: 0.55;
}

.settings-custom-theme-link__arrow {
    font-size: 14px;
    opacity: 0.4;
    transition: transform var(--duration-fast) ease, opacity var(--duration-fast) ease;
}

.settings-custom-theme-link:hover .settings-custom-theme-link__arrow {
    transform: translateX(3px);
    opacity: 0.8;
}

/*
   ACCENT COLOR CARDS (chapter accent theme)
*/

.settings-accent-grid {
    display: flex;
    gap: 7px;
}

.settings-accent-card__swatch {
    width: 32px;
    height: 18px;
    border-radius: 5px;
    border: 1px solid var(--border-medium);
    transition: box-shadow var(--duration-fast) ease;
}

.settings-accent-card.is-active .settings-accent-card__swatch {
    box-shadow: 0 0 8px var(--surface-overlay-light);
}

.settings-accent-card__name {
    font-size: 10px;
}

/* 
   ANIMATION
*/

@keyframes settings-fadein {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 
   RESPONSIVE
*/

@media (max-width: 768px) {
    .settings-panel-content {
        padding: 14px 16px 10px;
    }

    .settings-profile {
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px 10px;
        margin-left: -30px;
        margin-right: -30px;
    }

    .settings-profile__avatar {
        font-size: 0.8em;
    }

    .settings-profile__user {
        gap: 8px;
        min-width: 0;
        flex: 1.5;
        padding-right: 0;
    }

    .settings-profile__stats {
        flex: 1;
        min-width: 0;
    }

    .settings-mini-label {
        font-size: 9px;
    }

    .settings-mini-val {
        font-size: 1em;
    }

    .settings-mini-sub {
        font-size: 9px;
    }

    .settings-profile__news {
        flex: 1 1 100%;
    }

    .settings-font-card {
        padding: 10px 4px;
        min-height: 48px;
    }

    .settings-theme-card {
        padding: 8px 4px;
        min-height: 48px;
    }

    .settings-slider::-webkit-slider-thumb {
        width: 18px;
        height: 18px;
    }

    .settings-slider::-moz-range-thumb {
        width: 18px;
        height: 18px;
    }
}

/* ═══════════════════════════════════════════════
   COMPACT MODE — phones (≤600px)
   Halves padding, gaps, font sizes, avatar — whole panel on one screen.
   ═══════════════════════════════════════════════ */

@media (max-width: 600px) {
    .settings-panel-content {
        padding: 3px 12px 8px;
    }

    /* Header */
    .settings-header {
        margin-bottom: 6px;
    }

    .settings-header__title {
        font-size: 0.82em;
        letter-spacing: 0.03em;
    }

    .settings-header__close {
        width: 24px;
        height: 24px;
    }

    /* Profile */
    .settings-profile {
        gap: 4px;
        padding: 4px 6px;
        margin-left: -12px;
        margin-right: -12px;
    }

    .settings-profile__user {
        gap: 6px;
        min-width: 0;
        flex: 1.5;
        padding-right: 0;
    }

    .settings-profile__avatar {
        width: 36px;
        height: 36px;
        font-size: 0.75em;
    }

    .settings-profile__info {
        gap: 2px;
    }

    .settings-profile__name {
        font-size: 0.9em;
    }

    .settings-profile__goto {
        font-size: 0.6em;
    }

    .settings-profile__logout-btn {
        padding: 1px 8px;
        font-size: 0.72em;
    }

    /* Stats tile */
    .settings-profile__right {
        min-height: 40px;
    }

    .settings-profile__tiles {
        gap: 4px;
    }

    .settings-mini-half {
        padding: 3px 6px;
    }

    .settings-mini-label {
        font-size: 8px;
        letter-spacing: 0.03em;
    }

    .settings-mini-badge {
        font-size: 7px;
        padding: 0 3px;
    }

    .settings-mini-val {
        font-size: 0.85em;
    }

    .settings-mini-sub {
        font-size: 8px;
    }

    /* News */
    .settings-mini-news {
        padding: 3px 6px;
    }

    .settings-news-lines {
        gap: 1px;
        margin-top: 2px;
    }

    .settings-news-dot {
        width: 3px;
        height: 3px;
        margin-top: 3px;
    }

    .settings-news-text {
        font-size: 9px;
        line-height: 1.2;
    }

    /* Section labels */
    .settings-label {
        font-size: 9px;
        letter-spacing: 0.04em;
    }

    /* Dividers */
    .settings-divider {
        margin: 5px 0;
    }

    /* Sections */
    .settings-section {
        gap: 4px;
    }

    /* Font cards */
    .settings-font-grid {
        gap: 4px;
    }

    .settings-font-card {
        padding: 4px 2px;
        gap: 2px;
    }

    .settings-font-card__preview {
        font-size: 16px;
    }

    .settings-font-card__name {
        font-size: 8px;
    }

    /* Size slider */
    .settings-size-row {
        gap: 6px;
    }

    .settings-size-icon--sm {
        font-size: 10px;
    }

    .settings-size-icon--lg {
        font-size: 16px;
    }

    .settings-size-value {
        font-size: 9px;
        min-width: 22px;
    }

    /* Theme cards */
    .settings-theme-grid {
        gap: 4px;
    }

    .settings-theme-card {
        padding: 4px 2px;
        gap: 2px;
    }

    .settings-theme-card__preview {
        height: 18px;
    }

    .settings-theme-card__name {
        font-size: 8px;
    }

    /* Accent cards */
    .settings-accent-grid {
        gap: 4px;
    }

    .settings-accent-card {
        padding: 4px 2px;
        gap: 2px;
    }

    .settings-accent-card__swatch {
        width: 24px;
        height: 12px;
    }

    .settings-accent-card__name {
        font-size: 8px;
    }

    /* Custom theme link */
    .settings-custom-theme-link {
        padding: 5px 8px;
        margin-top: 3px;
    }

    .settings-custom-theme-link__text strong {
        font-size: 10px;
    }

    .settings-custom-theme-link__text small {
        font-size: 8px;
    }
}