/**
 * Bíblia em Ordem Cronológica
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 * Todos os direitos reservados
 */

/* ========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ======================================== */
:root {
    /* Primary Palette - Forest Green */
    --primary-color: #2D5016;
    --secondary-color: #3E7C17;
    --accent-color: #52734D;
    --surface-color: #91C788;
    --text-color: #1a1a1a;
    
    /* Derived Colors */
    --primary-hover: color-mix(in srgb, var(--primary-color) 85%, black);
    --primary-light: color-mix(in srgb, var(--primary-color) 15%, white);
    --primary-lighter: color-mix(in srgb, var(--primary-color) 8%, white);
    --secondary-light: color-mix(in srgb, var(--secondary-color) 20%, white);
    
    /* Background Colors */
    --bg-color: #ffffff;
    --bg-secondary: #f8faf7;
    --bg-tertiary: #f0f4ee;
    
    /* Text Colors */
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;
    --text-inverse: #ffffff;
    
    /* Status Colors */
    --success-color: #38a169;
    --success-light: #c6f6d5;
    --warning-color: #d69e2e;
    --warning-light: #fefcbf;
    --danger-color: #e53e3e;
    --danger-light: #fed7d7;
    --info-color: #3182ce;
    --info-light: #bee3f8;
    
    /* Border & Shadow */
    --border-color: #e2e8f0;
    --border-light: #edf2f7;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-serif: 'Merriweather', Georgia, 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;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-bounce: 300ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 500;
    --z-modal-backdrop: 900;
    --z-modal: 1000;
    --z-toast: 1100;
    
    /* Layout */
    --header-height: 60px;
    --bottom-nav-height: 65px;
    --container-max-width: 1200px;
    --reading-max-width: 720px;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-color: #0f1410;
    --bg-secondary: #1a201c;
    --bg-tertiary: #242b26;
    
    --text-primary: #f0f4ee;
    --text-secondary: #a8b5a0;
    --text-muted: #6b7a64;
    --text-light: #4a5a44;
    
    --border-color: #2d3a2f;
    --border-light: #242b26;
    
    --surface-color: #1a201c;
    --primary-light: color-mix(in srgb, var(--primary-color) 30%, #1a201c);
    --primary-lighter: color-mix(in srgb, var(--primary-color) 15%, #1a201c);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

/* ========================================
   CSS RESET & BASE STYLES
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: clamp(14px, 2.5vw, 16px);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    min-height: 100vh;
    padding-top: var(--header-height);
    padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Safe Areas for iOS */
@supports (padding: max(0px)) {
    body {
        padding-top: max(var(--header-height), env(safe-area-inset-top));
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

img,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

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

a:hover {
    color: var(--primary-hover);
}

ul,
ol {
    list-style: none;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Hidden */
[hidden] {
    display: none !important;
}

/* ========================================
   LAYOUT COMPONENTS
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
}

.section {
    min-height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
    padding-bottom: var(--spacing-2xl);
}

.section.active {
    display: block;
}

.section:not(.active) {
    display: none;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.section-description {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

/* ========================================
   HEADER
   ======================================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-logo i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
}

.header-logo h1 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.desktop-nav {
    display: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ========================================
   BOTTOM NAVIGATION
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
    z-index: var(--z-fixed);
    padding-bottom: env(safe-area-inset-bottom, 0);
    border-top: 1px solid var(--border-light);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 4px;
    padding: var(--spacing-sm) 2px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 10px;
    font-weight: 500;
    min-width: 0;
    min-height: 48px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
}

.nav-item i {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item.active i {
    transform: scale(1.1);
}

.nav-item:hover:not(.active) {
    color: var(--text-secondary);
    background: var(--bg-secondary);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
    white-space: nowrap;
    min-height: 48px;
}

.btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-inverse);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.btn-danger {
    background: var(--danger-color);
    color: var(--text-inverse);
}

.btn-danger:hover {
    background: color-mix(in srgb, var(--danger-color) 85%, black);
}

.btn-text {
    background: transparent;
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
}

.btn-text:hover {
    background: var(--primary-lighter);
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: transparent;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.btn-icon:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-fab {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    right: var(--spacing-md);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    padding: 0;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
}

.btn-fab:hover {
    transform: scale(1.1);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-tagline {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.7;
}

/* ========================================
   BENTO GRID
   ======================================== */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.bento-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.bento-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.card-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-header h3 i {
    color: var(--primary-color);
}

/* Progress Card */
.progress-card {
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--bg-color) 100%);
}

.progress-overview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.progress-ring-container {
    position: relative;
    width: 120px;
    height: 120px;
}

.progress-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 326.73;
    stroke-dashoffset: 326.73;
    transition: stroke-dashoffset 1s ease-out;
}

.progress-ring-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-percentage {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.progress-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.progress-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Today Card */
.today-card {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--bg-color) 100%);
}

.today-reading {
    margin-bottom: var(--spacing-md);
}

.today-reading h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.today-reading p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Streak Card */
.streak-card {
    text-align: center;
    background: linear-gradient(135deg, #fff7ed 0%, var(--bg-color) 100%);
}

[data-theme="dark"] .streak-card {
    background: linear-gradient(135deg, #2d2418 0%, var(--bg-color) 100%);
}

.streak-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.streak-fire {
    font-size: 32px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.streak-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--warning-color);
}

.streak-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.streak-week {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
}

.streak-day {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.streak-day.completed {
    background: var(--success-color);
    color: var(--text-inverse);
}

.streak-day.today {
    border: 2px solid var(--primary-color);
}

/* Achievements Card */
.achievements-preview {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.achievement-badge {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: transform var(--transition-fast);
}

.achievement-badge:hover {
    transform: scale(1.1);
}

.achievement-badge.locked {
    opacity: 0.4;
    filter: grayscale(1);
}

/* ========================================
   QUICK ACTIONS
   ======================================== */
.quick-actions {
    margin-bottom: var(--spacing-xl);
}

.quick-actions h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    min-height: 80px;
}

.action-card i {
    font-size: 24px;
    color: var(--primary-color);
}

.action-card span {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.action-card:hover {
    background: var(--primary-lighter);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ========================================
   BADGES
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--primary-lighter);
    color: var(--primary-color);
}

.badge-success {
    background: var(--success-light);
    color: var(--success-color);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.faq-section h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-section h2 i {
    color: var(--primary-color);
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    background: transparent;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.7;
    animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   READING SECTION
   ======================================== */
.reading-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.reading-info {
    flex: 1;
}

.reading-info h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

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

.reading-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.reading-content {
    font-family: var(--font-family-serif);
    font-size: var(--reading-font-size, 18px);
    line-height: 1.8;
    color: var(--text-primary);
    max-width: var(--reading-max-width);
    margin: 0 auto;
    padding: var(--spacing-md) 0;
}

.reading-content .verse {
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-left: var(--spacing-xl);
}

.reading-content .verse-number {
    position: absolute;
    left: 0;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    font-family: var(--font-family);
}

.reading-content .verse-text {
    display: inline;
}

.reading-content .verse.highlighted {
    background: var(--warning-light);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-left: calc(var(--spacing-xl) * -1);
    padding-left: var(--spacing-xl);
}

.reading-content .chapter-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    font-family: var(--font-family);
}

.reading-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
}

.reading-footer .btn {
    flex: 1;
}

.reading-footer .btn-primary {
    flex: 2;
}

/* ========================================
   PLAN SECTION
   ======================================== */
.plan-overview {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.plan-progress-bar {
    height: 12px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.plan-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    transition: width 0.5s ease-out;
    width: 0%;
}

.plan-stats {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.plan-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
    -webkit-overflow-scrolling: touch;
}

.filter-btn {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    white-space: nowrap;
    transition: all var(--transition-fast);
}

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

.filter-btn.active {
    background: var(--primary-color);
    color: var(--text-inverse);
    border-color: var(--primary-color);
}

.plan-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.plan-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.plan-item:hover {
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.plan-item.completed {
    background: var(--success-light);
    border-color: var(--success-color);
}

.plan-item-day {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.plan-item.completed .plan-item-day {
    background: var(--success-color);
    color: var(--text-inverse);
}

.plan-item-day span:first-child {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    color: var(--text-muted);
}

.plan-item.completed .plan-item-day span:first-child {
    color: var(--text-inverse);
    opacity: 0.8;
}

.plan-item-day span:last-child {
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.plan-item-content {
    flex: 1;
    min-width: 0;
}

.plan-item-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.plan-item-description {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.plan-item-status {
    flex-shrink: 0;
}

.plan-item-status i {
    font-size: 20px;
    color: var(--text-light);
}

.plan-item.completed .plan-item-status i {
    color: var(--success-color);
}

/* ========================================
   LISTS (Favorites, Notes, Bookmarks)
   ======================================== */
.favorites-list,
.notes-list,
.bookmarks-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.list-item {
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-fast);
}

.list-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.list-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.list-item-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.list-item-reference {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 500;
}

.list-item-content {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.list-item-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.list-item-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.list-item-actions .btn-icon {
    width: 32px;
    height: 32px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   SEARCH
   ======================================== */
.search-box {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md);
    padding-left: calc(var(--spacing-md) * 3);
    padding-right: calc(var(--spacing-md) * 3);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-color);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
}

.search-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.search-results {
    min-height: 200px;
}

.search-placeholder {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.search-placeholder i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

.search-result-item {
    padding: var(--spacing-md);
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-result-item:hover {
    border-color: var(--primary-color);
    background: var(--primary-lighter);
}

.search-result-reference {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.search-result-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.search-result-text mark {
    background: var(--warning-light);
    color: var(--text-primary);
    padding: 0 2px;
    border-radius: 2px;
}

/* ========================================
   SETTINGS
   ======================================== */
.settings-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.settings-group h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.setting-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.setting-info i {
    font-size: 20px;
    color: var(--primary-color);
    width: 24px;
    text-align: center;
}

.setting-label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
}

.setting-description {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition-fast);
    border-radius: var(--radius-full);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.toggle-switch input:focus-visible + .toggle-slider {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Font Size Controls */
.font-size-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.font-size-controls .btn-icon {
    width: 36px;
    height: 36px;
}

#font-size-value {
    min-width: 48px;
    text-align: center;
    font-weight: 500;
}

/* ========================================
   ACHIEVEMENTS
   ======================================== */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

.achievement-card {
    background: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-fast);
}

.achievement-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.achievement-card.unlocked {
    border-color: var(--warning-color);
    background: linear-gradient(135deg, #fffbeb 0%, var(--bg-color) 100%);
}

[data-theme="dark"] .achievement-card.unlocked {
    background: linear-gradient(135deg, #2d2418 0%, var(--bg-color) 100%);
}

.achievement-card.locked {
    opacity: 0.6;
}

.achievement-icon {
    font-size: 40px;
    margin-bottom: var(--spacing-sm);
}

.achievement-card.locked .achievement-icon {
    filter: grayscale(1);
}

.achievement-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.achievement-description {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ========================================
   MODALS
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-sm {
    max-width: 360px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-color);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-input.error,
.form-textarea.error {
    border-color: var(--danger-color);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--danger-color);
    margin-top: var(--spacing-xs);
}

/* Font Size Slider */
.font-size-slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.font-size-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.font-size-label.large {
    font-size: var(--font-size-xl);
}

.font-size-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    outline: none;
}

.font-size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.font-size-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.font-preview {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    font-family: var(--font-family-serif);
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */
.toast-container {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: calc(100% - var(--spacing-md) * 2);
    max-width: 400px;
    pointer-events: none;
}

.toast {
    background: var(--text-primary);
    color: var(--bg-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-base);
    pointer-events: auto;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

.toast.warning {
    background: var(--warning-color);
    color: var(--text-primary);
}

.toast i {
    font-size: 18px;
}

.toast-message {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ========================================
   SKELETON LOADING
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--spacing-sm);
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-paragraph {
    height: 80px;
    margin-bottom: var(--spacing-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========================================
   FOOTER
   ======================================== */
.app-footer {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    padding-bottom: calc(var(--spacing-xl) + var(--bottom-nav-height));
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    border-top: 1px solid var(--border-light);
    margin-top: var(--spacing-2xl);
}

.app-footer p {
    margin-bottom: var(--spacing-xs);
}

.b20-link {
    color: var(--primary-color);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.02);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) ease-out;
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) ease-out;
}

/* Celebration Animation */
@keyframes celebrate {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.2) rotate(-5deg); }
    50% { transform: scale(1.3); }
    75% { transform: scale(1.2) rotate(5deg); }
}

.celebrate {
    animation: celebrate 0.6s ease-in-out;
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .app-header,
    .bottom-nav,
    .btn-fab,
    .toast-container {
        display: none !important;
    }
    
    body {
        padding: 0;
    }
    
    .reading-content {
        max-width: 100%;
    }
}