/* ==========================================================================
   Reader Page
   Minimal chrome, content-forward, single bottom navigation bar
   ========================================================================== */

/* Remove page-content top padding on reader pages */
.page-content:has(.reader-progress) {
    padding-top: 0;
}

/* Progress bar */
.reader-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--color-primary);
    z-index: 300;
    transition: width 0.3s ease;
    pointer-events: none;
}

/* ── Top bar: NOT sticky, scrolls away ── */

.reader-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.reader-nav-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Bottom bar: STICKY, all chapter controls ── */

.reader-bottom-nav {
    position: sticky;
    bottom: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

/* Disabled prev/next button */
.reader-bottom-nav .btn-disabled {
    opacity: 0.35;
    pointer-events: none;
    cursor: default;
}

/* Chapter select: match .btn-sm height exactly */
.reader-chapter-select {
    flex: 1;
    min-width: 0;
    min-height: 32px;
    height: 32px;
    padding: 0 2rem 0 0.875rem;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

.reader-chapter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.reader-chapter-select:hover {
    border-color: var(--color-text-secondary);
}

/* ── Reader container ── */

.reader-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0;
    background: var(--color-bg);
}

/* ── Vertical scroll mode ── */

.reader-images {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.reader-images img {
    width: 100%;
    height: auto;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

/* ── Paged mode ── */

.reader-paged {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.reader-paged .paged-page {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

/* Arrows: hidden by default, appear on hover over the paged area */
.paged-arrow {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 10;
    width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: rgba(255, 255, 255, 0);
    border: none;
    cursor: pointer;
    transition: color 0.25s ease, background 0.25s ease;
}

.paged-arrow svg,
.paged-arrow i {
    transition: transform 0.2s ease;
}

/* Show arrows when hovering the paged container */
.reader-paged:hover .paged-arrow {
    color: rgba(255, 255, 255, 0.5);
}

.reader-paged:hover .paged-arrow:hover {
    color: #fff;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.3), transparent);
}

.reader-paged:hover .paged-arrow-next:hover {
    background: linear-gradient(to left, rgba(0, 0, 0, 0.3), transparent);
}

.paged-arrow:hover svg,
.paged-arrow:hover i {
    transform: scale(1.15);
}

.paged-arrow-prev {
    left: 0;
}

.paged-arrow-next {
    right: 0;
}

/* On touch devices, keep arrows subtly visible since there's no hover */
@media (hover: none) {
    .paged-arrow {
        color: rgba(255, 255, 255, 0.25);
        width: 44px;
    }

    .paged-arrow:active {
        color: rgba(255, 255, 255, 0.7);
    }
}

.paged-counter {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--text-sm);
    font-weight: 600;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* ── Settings panel ── */

.reader-settings {
    position: fixed;
    bottom: 60px;
    right: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: var(--shadow-lg);
    z-index: 201;
    min-width: 260px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.reader-settings.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.reader-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--color-border);
}

.reader-settings-header h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-heading);
    margin: 0;
}

.reader-settings-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.reader-settings-close:hover {
    background: var(--color-surface-hover);
    color: var(--color-text);
}

.reader-settings-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: 12px 14px;
}

.reader-settings-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.reader-settings-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.reader-settings-select {
    width: 100%;
    min-height: 40px;
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

.reader-settings-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.reader-settings-select:hover {
    border-color: var(--color-text-secondary);
}

/* Mode toggle buttons */
.reader-mode-group {
    display: flex;
    gap: 6px;
}

.reader-mode-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 40px;
    padding: 0.5rem 0.75rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.reader-mode-btn:hover {
    border-color: var(--color-text-secondary);
    color: var(--color-text);
}

.reader-mode-btn.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ── Mobile: full-bleed images ── */

@media (max-width: 767px) {
    /* Break out of parent .container padding */
    .reader-nav,
    .reader-bottom-nav,
    .reader-container {
        margin-left: calc(-1 * var(--space-md));
        margin-right: calc(-1 * var(--space-md));
    }

    .reader-nav {
        padding: var(--space-xs) var(--space-sm);
    }

    .reader-bottom-nav {
        padding: var(--space-xs) var(--space-sm);
        gap: var(--space-xs);
    }

    .reader-container {
        max-width: none;
    }

    .reader-settings {
        left: var(--space-sm);
        right: var(--space-sm);
        min-width: unset;
        bottom: 52px;
    }
}

/* ── Desktop ── */

@media (min-width: 768px) {
    .reader-container {
        padding: 0 var(--space-md);
    }

    .paged-arrow {
        width: 80px;
    }

    .reader-settings {
        min-width: 300px;
    }
}