/* ═══════════════════════════════════════════════════════════════════════════
   THE COPYWRITING BLACK BOOK - Premium Theme
   Dark, mysterious, and high-value aesthetic.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────────────────
   CSS VARIABLES - Design Tokens
   ───────────────────────────────────────────────────────────────────────────── */
:root {
    /* Colors - Black Book Theme (Dark Default) */
    --color-bg: #0a0a0a;
    /* Deepest Black */
    --color-bg-secondary: #111111;
    /* Rich Black */
    --color-bg-tertiary: #1a1a1a;
    /* Charcoal */

    --color-primary: #d4af37;
    /* Metallic Gold */
    --color-primary-light: #f4d06f;
    /* Light Gold */
    --color-primary-dark: #aa8c2c;
    /* Dark Gold */

    --color-accent: #ffffff;
    /* Pure White (High Contrast) */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    --color-text: #f0f0f0;
    /* Off-white text */
    --color-text-secondary: #a0a0a0;
    /* Silver gray */
    --color-text-muted: #666666;
    /* Dark gray */

    --color-border: #333333;
    --color-shadow: rgba(0, 0, 0, 0.5);

    /* Typography */
    --font-family: 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    /* Sharper corners for serious look */
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 var(--color-shadow);
    --shadow-md: 0 4px 6px -1px var(--color-shadow);
    --shadow-lg: 0 10px 15px -3px var(--color-shadow);
    --shadow-xl: 0 20px 25px -5px var(--color-shadow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --content-max-width: 720px;
    --topbar-height: 60px;
    --nav-footer-height: 70px;

    /* أسماء موحَّدة تحتاجها مكتبة viz المشتركة */
    --color-primary-hover: var(--color-primary-dark);
    --font-sans: var(--font-family);
    --font-mono: 'Fira Code', 'Courier New', monospace;
    --shadow-soft: 0 6px 24px -6px rgba(0, 0, 0, .55);
}

/* Light Theme Overrides (Optional, if user toggles) */
body.light-mode {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;

    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;

    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.1);

    --color-primary: #b8860b;
    /* Darker Gold for visibility on white */
    --color-primary-dark: #8a6508;
    --shadow-soft: 0 4px 20px -4px rgba(15, 23, 42, .12);
}

/* ─────────────────────────────────────────────────────────────────────────────
   BASE STYLES
   ───────────────────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
}

p {
    margin-bottom: var(--space-4);
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ─────────────────────────────────────────────────────────────────────────────
   LANDING SCREEN
   ───────────────────────────────────────────────────────────────────────────── */
.landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.landing__container {
    text-align: center;
    max-width: 500px;
    z-index: 1;
}

.landing__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.landing__title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.landing__cover {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-8);
}

.book-cover-placeholder {
    width: 160px;
    height: 240px;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    color: var(--color-primary);
    box-shadow: 0 20px 40px -10px rgba(212, 175, 55, 0.2);
    transform: rotate(-3deg);
    transition: transform var(--transition-base);
}

.book-cover-placeholder:hover {
    transform: rotate(0deg) scale(1.05);
}

.book-cover-placeholder span {
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.landing__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-10);
    margin-bottom: var(--space-8);
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.landing__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), 0 4px 20px -4px var(--color-primary);
    transition: all var(--transition-base);
}

.landing__cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 8px 30px -4px var(--color-primary);
}

.landing__cta i {
    transition: transform var(--transition-base);
}

.landing__cta:hover i {
    transform: translateX(-4px);
}

.landing__continue {
    margin-top: var(--space-6);
}

.btn-link {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: color var(--transition-fast);
}

.btn-link:hover {
    color: var(--color-primary);
}

/* Decorative Circles */
.landing__decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.05;
}

.circle--1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: -100px;
    right: -100px;
}

.circle--2 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    bottom: -50px;
    left: -50px;
}

.circle--3 {
    width: 200px;
    height: 200px;
    background: var(--color-primary);
    top: 50%;
    left: 10%;
}

/* ─────────────────────────────────────────────────────────────────────────────
   READER VIEW
   ───────────────────────────────────────────────────────────────────────────── */
.reader {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
}

/* Top Bar */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 var(--space-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar__right,
.topbar__left {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.topbar__btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.topbar__btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.topbar__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar__center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.topbar__progress {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.topbar__divider {
    margin: 0 var(--space-1);
    opacity: 0.5;
}

/* Progress Bar - HIDDEN as per user request */
.progress-bar {
    display: none;
}

/* Progress Text */
.topbar__progress {
    font-size: var(--font-size-base);
    /* Slightly larger */
    color: var(--color-text-muted);
    font-weight: 700;
    /* Bold numbers */
    background: var(--color-bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

/* Main Content */
.content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-8) var(--space-4);
    padding-bottom: calc(var(--nav-footer-height) + var(--space-8));
}

.page {
    max-width: var(--content-max-width);
    margin: 0 auto;
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Page Content Styling */
.page h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--color-border);
}

.page h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-4);
    color: var(--color-primary);
}

.page h4 {
    font-size: var(--font-size-lg);
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
}

.page p {
    font-size: var(--font-size-lg);
    line-height: 1.9;
    color: var(--color-text-secondary);
}

.page ul,
.page ol {
    margin: var(--space-4) 0;
    padding-right: var(--space-6);
}

.page li {
    margin-bottom: var(--space-2);
    line-height: 1.8;
}

.page code {
    background: var(--color-bg-tertiary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-family: 'Courier New', monospace;
}

.page pre {
    background: var(--color-bg-tertiary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: var(--space-4) 0;
}

.page pre code {
    background: none;
    padding: 0;
}

/* Content Boxes */
.highlight-box,
.info-box,
.warning-box,
.success-box {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.highlight-box {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.08));
    border-right: 4px solid var(--color-primary);
}

.info-box {
    background: rgba(6, 182, 212, 0.08);
    border-right: 4px solid var(--color-accent);
}

.warning-box {
    background: rgba(245, 158, 11, 0.08);
    border-right: 4px solid var(--color-warning);
}

.success-box {
    background: rgba(16, 185, 129, 0.08);
    border-right: 4px solid var(--color-success);
}

.highlight-box h4,
.info-box h4,
.warning-box h4,
.success-box h4 {
    margin-top: 0;
    margin-bottom: var(--space-3);
    font-size: var(--font-size-lg);
}

.highlight-box p:last-child,
.info-box p:last-child,
.warning-box p:last-child,
.success-box p:last-child {
    margin-bottom: 0;
}

/* Navigation Footer */
.nav-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-footer-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    z-index: 100;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.nav-btn:hover:not(:disabled) {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.nav-btn--next {
    background: var(--color-primary);
    color: white;
}

.nav-btn--next:hover:not(:disabled) {
    background: var(--color-primary-dark);
    color: white;
}

.nav-dots {
    display: flex;
    gap: var(--space-2);
}

.nav-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.nav-dot:hover {
    background: var(--color-text-muted);
}

.nav-dot.active {
    background: var(--color-primary);
    width: 24px;
    border-radius: var(--radius-full);
}

/* Side Menu */
.side-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    z-index: 200;
    transition: right var(--transition-base);
    display: flex;
    flex-direction: column;
}

.side-menu.open {
    right: 0;
}

.side-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.side-menu__header h3 {
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.side-menu__close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
}

.side-menu__close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.side-menu__nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

.toc-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-1);
}

.toc-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.toc-item.active {
    background: var(--color-primary);
    color: white;
}

.toc-item i {
    width: 20px;
    text-align: center;
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

/* Overlay */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 150;
}

.overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* ─────────────────────────────────────────────────────────────────────────────
   RESPONSIVE DESIGN
   ───────────────────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    :root {
        --topbar-height: 56px;
        --nav-footer-height: 64px;
    }

    .landing__title {
        font-size: var(--font-size-3xl);
    }

    .landing__stats {
        gap: var(--space-8);
    }

    .stat__number {
        font-size: var(--font-size-2xl);
    }

    .topbar__title {
        display: none;
    }

    .nav-dots {
        display: none;
    }

    .nav-btn span {
        display: none;
    }

    .nav-btn {
        width: 44px;
        height: 44px;
        padding: 0;
        justify-content: center;
    }

    .nav-btn i {
        margin: 0;
    }
}

@media (max-width: 480px) {
    .landing {
        padding: var(--space-6);
    }

    .landing__title {
        font-size: var(--font-size-2xl);
    }

    .landing__cta {
        width: 100%;
        justify-content: center;
    }

    .content {
        padding: var(--space-6) var(--space-4);
    }

    .page h2 {
        font-size: var(--font-size-xl);
    }
}

/* ─────────────────────────────────────────────────────────────────────────────
   ANIMATIONS
   ───────────────────────────────────────────────────────────────────────────── */
@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* Smooth page transitions */
.page-enter {
    animation: fadeIn var(--transition-base);
}

/* Button press effect */
.nav-btn:active:not(:disabled) {
    transform: scale(0.95);
}

/* ─────────────────────────────────────────────────────────────────────────────
   PRINT STYLES
   ───────────────────────────────────────────────────────────────────────────── */
@media print {

    .topbar,
    .nav-footer,
    .side-menu,
    .overlay {
        display: none !important;
    }

    .content {
        padding: 0;
    }

    .page {
        max-width: 100%;
    }
}

/* ILLUSTRATIONS */
.illustration-container {
    margin: 2rem 0;
    padding: 1rem;
    background: var(--color-bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.illustration-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.illustration-caption {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-align: center;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    background: var(--color-bg-tertiary);
}
/* ═══════════════════════════════════════════════════════════════════════════
   الغلاف — CSS خالص
   أسود وذهبي: وجه داكن بحبيبات، خط ذهبي، ومؤشّر كتابة يومض.
   ═══════════════════════════════════════════════════════════════════════════ */
.landing__cover {
    margin: 0 auto 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .9rem;
}

.cover {
    --cover-w: 208px;
    --cover-h: 288px;
    position: relative;
    width: var(--cover-w);
    height: var(--cover-h);
    perspective: 1100px;
}

.cover__book {
    position: relative;
    width: 100%;
    height: 100%;
    transform: rotateY(16deg) rotateX(4deg);
    transform-style: preserve-3d;
    transition: transform .7s cubic-bezier(.22, 1, .36, 1);
}

.cover:hover .cover__book {
    transform: rotateY(0) rotateX(0) translateY(-6px);
}

.cover__spine {
    position: absolute;
    top: 0;
    right: -13px;
    width: 14px;
    height: 100%;
    border-radius: 0 5px 5px 0;
    background: linear-gradient(180deg, #2a2417, #17130a 60%, #0d0a05);
    box-shadow: inset 3px 0 7px rgba(0, 0, 0, .6);
}

.cover__face {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 12px 4px 4px 12px;
    background:
        radial-gradient(130% 90% at 12% 0%, #2a2a2a, transparent 55%),
        linear-gradient(160deg, #171717 0%, #0b0b0b 60%, #050505 100%);
    box-shadow:
        0 24px 48px -14px rgba(0, 0, 0, .8),
        inset 0 0 0 1px rgba(212, 175, 55, .3);
    padding: 1.5rem 1.1rem 1.1rem;
    display: flex;
    flex-direction: column;
    color: #f0f0f0;
}

/* حبيبات خفيفة تمنع الوجه من أن يبدو مسطّحًا */
.cover__grain {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
        radial-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 7px 7px, 11px 11px;
    background-position: 0 0, 4px 5px;
    pointer-events: none;
}

.cover__sheen {
    position: absolute;
    top: -60%;
    left: -70%;
    width: 45%;
    height: 220%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, .22), transparent);
    transform: rotate(18deg);
    animation: cover-sheen 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes cover-sheen {

    0%,
    65% {
        left: -70%;
    }

    90%,
    100% {
        left: 135%;
    }
}

/* شرطة ذهبية فوق العنوان */
.cover__rule-mark {
    width: 44px;
    height: 3px;
    border-radius: 99px;
    background: linear-gradient(90deg, #d4af37, #f4d06f);
    margin-bottom: auto;
}

.cover__title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -.02em;
    margin: 0 0 .5rem;
    background: linear-gradient(120deg, #f4d06f, #d4af37 55%, #a3801f);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cover__tag {
    font-size: .78rem;
    color: #a0a0a0;
    letter-spacing: .02em;
    margin-bottom: 1rem;
}

/* سطر كتابة بمؤشّر يومض */
.cover__line {
    height: 12px;
    border-top: 1px solid rgba(212, 175, 55, .28);
    padding-top: .7rem;
    display: flex;
    align-items: center;
}

.cover__caret {
    display: inline-block;
    width: 9px;
    height: 15px;
    background: #d4af37;
    animation: cover-caret 1.1s steps(1, end) infinite;
}

@keyframes cover-caret {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.cover__shadow {
    position: absolute;
    bottom: -16px;
    left: 8%;
    width: 84%;
    height: 22px;
    border-radius: 50%;
    background: rgba(0, 0, 0, .55);
    filter: blur(14px);
    transition: transform .7s cubic-bezier(.22, 1, .36, 1), opacity .7s;
}

.cover:hover .cover__shadow {
    transform: scale(.92);
    opacity: .75;
}

.cover__note {
    font-size: .78rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: .4rem;
}

.cover__note i {
    color: var(--color-primary);
}

@media (prefers-reduced-motion: reduce) {

    .cover__sheen,
    .cover__caret {
        animation: none;
    }

    .cover__book {
        transition: none;
    }
}

@media (max-width: 520px) {
    .cover {
        --cover-w: 170px;
        --cover-h: 236px;
    }

    .cover__title {
        font-size: 1.6rem;
    }
}

/* ── شاشة المحتوى المقفل (تأتي من api.php حين لا يملك القارئ الصلاحية) ── */
.locked {
    text-align: center;
    padding: 4rem 1.5rem;
    max-width: 520px;
    margin: 0 auto;
}

.locked i {
    font-size: 2.5rem;
    color: var(--color-accent);
    opacity: 0.55;
    margin-bottom: 1.25rem;
    display: block;
}

.locked h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.locked p {
    color: var(--color-text-secondary);
    line-height: 1.9;
}