:root {
    --reader-bg: #edf2f7;
    --reader-surface: #f7f7f8;
    --reader-card: rgba(255, 255, 255, 0.88);
    --reader-text: #243046;
    --reader-muted: #6b778c;
    --reader-border: rgba(15, 23, 42, 0.08);
    --reader-primary: #e3a52a;
    --reader-primary-dark: #cf8f14;
    --reader-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    --reader-radius-xl: 26px;
    --reader-radius-lg: 20px;
    --reader-radius-md: 16px;
    --reader-page-scale: 1;
    --site-header-offset: 96px; /* إذا كان الهيدر أعلى، ارفعها إلى 110 أو 120 */
}
.reader-page[data-theme="dark"] {
    --reader-bg: #0f172a;
    --reader-surface: #111827;
    --reader-card: rgba(17, 24, 39, 0.86);
    --reader-text: #f8fafc;
    --reader-muted: #cbd5e1;
    --reader-border: rgba(255, 255, 255, 0.08);
    --reader-shadow: 0 18px 40px rgba(2, 6, 23, 0.38);
}

.reader-page {
    min-height: 100vh;
    padding: calc(var(--site-header-offset) + 20px) 16px 28px;
    background:
        radial-gradient(circle at top right, rgba(227, 165, 42, 0.12), transparent 22%),
        linear-gradient(180deg, #f3f6fa 0%, var(--reader-bg) 100%);
    color: var(--reader-text);
    font-family: "Cairo", "Tajawal", "Segoe UI", Arial, sans-serif;
}

.reader-shell {
    max-width: 1320px;
    margin: 0 auto;
}

.reader-bookbar {
    margin-bottom: 16px;
    padding: 18px 22px;
    border-radius: var(--reader-radius-xl);
    background: var(--reader-card);
    border: 1px solid var(--reader-border);
    box-shadow: var(--reader-shadow);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.reader-bookbar__main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.reader-bookbar__title {
    margin: 0;
    font-size: clamp(1.8rem, 2.6vw, 3rem);
    line-height: 1.1;
    font-weight: 900;
    color: var(--reader-text);
}

.reader-bookbar__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.reader-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(227, 165, 42, 0.16);
    color: #946200;
    font-size: .92rem;
    font-weight: 800;
    border: 1px solid rgba(227, 165, 42, 0.14);
}

.reader-badge--light {
    background: rgba(255, 255, 255, 0.95);
    color: var(--reader-text);
    border: 1px solid var(--reader-border);
}

.reader-badge--dark {
    background: #243b55;
    color: #fff;
    border: none;
}

.reader-bookbar__status {
    min-width: 280px;
    color: var(--reader-muted);
    font-size: 1rem;
    font-weight: 800;
}

.reader-progress {
    width: 100%;
    height: 8px;
    margin-top: 10px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.reader-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--reader-primary), var(--reader-primary-dark));
}

.reader-toolbar {
    position: sticky;
    top: calc(var(--site-header-offset) + 10px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    padding: 16px;
    border-radius: var(--reader-radius-xl);
    background: var(--reader-card);
    border: 1px solid var(--reader-border);
    box-shadow: var(--reader-shadow);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.reader-toolbar__group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.reader-toolbar__group--nav {
    flex: 1;
    justify-content: flex-end;
}

.reader-toolbar__group--tools {
    justify-content: flex-start;
}

.reader-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 10px 18px;
    border-radius: 16px;
    text-decoration: none;
    font-size: .96rem;
    font-weight: 900;
    white-space: nowrap;
    transition: transform .18s ease, box-shadow .18s ease;
}

.reader-btn:hover {
    transform: translateY(-2px);
}

.reader-btn--primary {
    background: linear-gradient(135deg, var(--reader-primary), var(--reader-primary-dark));
    color: #1f2937;
    box-shadow: 0 12px 20px rgba(227, 165, 42, 0.24);
    border: none;
}

.reader-btn--muted {
    background: #dde2ea;
    color: #6b778c;
    border: 1px solid rgba(107, 119, 140, 0.12);
}

.reader-btn--disabled {
    background: #dde2ea;
    color: #a0aec0;
    border: 1px solid rgba(107, 119, 140, 0.08);
    cursor: not-allowed;
}

.reader-page-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 10px 18px;
    border-radius: 16px;
    background: #f1ede3;
    border: 1px solid rgba(227, 165, 42, 0.18);
    color: var(--reader-text);
    font-weight: 900;
}

.reader-page-pill span {
    color: var(--reader-muted);
    font-weight: 800;
}

.reader-jump-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.reader-jump-form__label {
    color: var(--reader-muted);
    font-size: .9rem;
    font-weight: 800;
    padding-inline: 4px;
}

.reader-jump-form__row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.reader-jump-form__input {
    width: 120px;
    min-height: 48px;
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid var(--reader-border);
    background: rgba(255,255,255,.88);
    color: var(--reader-text);
    font-size: 1rem;
    font-weight: 800;
    outline: none;
}

.reader-jump-form__input:focus {
    border-color: rgba(227, 165, 42, 0.8);
    box-shadow: 0 0 0 4px rgba(227, 165, 42, 0.14);
}

.reader-tools {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.reader-tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    min-height: 48px;
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px solid var(--reader-border);
    background: rgba(255,255,255,.72);
    color: var(--reader-text);
    font-size: 1rem;
    font-weight: 900;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease;
}

.reader-tool-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(227, 165, 42, 0.5);
}

.reader-stage {
    padding: 18px;
    border-radius: var(--reader-radius-xl);
    background: rgba(255,255,255,.48);
    border: 1px solid var(--reader-border);
    box-shadow: var(--reader-shadow);
}

.reader-stage__inner {
    border-radius: var(--reader-radius-lg);
    padding: 16px;
    background: #fff;
    border: 1px solid var(--reader-border);
    overflow: auto;
}

.reader-stage__image {
    display: block;
    margin: 0 auto;
    width: calc(100% * var(--reader-page-scale));
    max-width: none;
    height: auto;
    border-radius: 14px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
    transition: width .18s ease;
}

.reader-empty-state {
    min-height: 420px;
    border-radius: var(--reader-radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
    background: rgba(255,255,255,.75);
    color: var(--reader-muted);
    border: 1px dashed var(--reader-border);
}

.reader-empty-state strong {
    color: var(--reader-text);
    font-size: 1.1rem;
}

@media (max-width: 980px) {
    .reader-bookbar__main,
    .reader-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .reader-toolbar__group--nav,
    .reader-toolbar__group--tools {
        justify-content: stretch;
    }
}

@media (max-width: 768px) {
    :root {
        --site-header-offset: 86px;
    }

    .reader-page {
        padding: calc(var(--site-header-offset) + 12px) 10px 20px;
    }

    .reader-bookbar,
    .reader-toolbar,
    .reader-stage {
        padding: 12px;
        border-radius: 18px;
    }

    .reader-bookbar__title {
        font-size: 1.5rem;
    }

    .reader-toolbar__group,
    .reader-jump-form__row,
    .reader-tools {
        flex-direction: column;
        align-items: stretch;
    }

    .reader-btn,
    .reader-page-pill,
    .reader-jump-form__input,
    .reader-tool-btn {
        width: 100%;
    }

    .reader-stage__inner {
        padding: 8px;
    }
}