/* Design Tokens & Theme Variables */
:root {
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Light Theme (default variables, but we start body as dark-theme) */
    --bg-app: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --primary: #4f46e5;
    --primary-light: #e0e7ff;
    --primary-dark: #3730a3;
    --accent: #f59e0b;
    --accent-light: #fef3c7;
    --teal: #0d9488;
    --teal-light: #ccfbf1;
    
    /* System States */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --info: #0284c7;
    --info-light: #e0f2fe;

    /* Shadow & Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* Dark Theme Variables */
.dark-theme {
    --bg-app: #090d16;
    --bg-card: #131926;
    --bg-card-hover: #1c2538;
    --border-color: #222e45;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --primary: #6366f1;
    --primary-light: #1e1b4b;
    --primary-dark: #4f46e5;
    --accent: #f59e0b;
    --accent-light: #451a03;
    --teal: #14b8a6;
    --teal-light: #115e59;
    
    --success-light: #064e3b;
    --error-light: #7f1d1d;
    --info-light: #0c4a6e;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent; /* Disable outline highlight on mobile tap */
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-app);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    overflow-x: hidden;
    padding-bottom: 74px; /* Space for bottom navigation */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-app);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}

/* Layout Wrapper */
#app {
    max-width: 600px; /* Centered narrow container that feels like a native phone screen even on desktop */
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    background-color: var(--bg-app);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.1);
}

/* App Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(19, 25, 38, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background var(--transition-normal), border-bottom var(--transition-normal);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.4));
}

.logo-text h1 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Button & Icon States */
.icon-btn {
    background: var(--border-color);
    border: none;
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.icon-btn:active {
    transform: scale(0.9);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
}

/* Main Content Views */
.app-content {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.view {
    display: none;
    flex-direction: column;
    gap: 16px;
    animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.view.active {
    display: flex;
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.animate-fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

/* Welcome Card (Dashboard) */
.welcome-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(59, 130, 246, 0.05) 100%);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.welcome-card h2 {
    font-size: 1.6rem;
    font-weight: 800;
}

.welcome-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Overall Progress Bar */
.overall-progress-container {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
}

.progress-bar-bg {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--teal) 100%);
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.1, 0.8, 0.2, 1);
}

/* Baustein Card Grid */
.section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 8px;
    margin-left: 4px;
}

.baustein-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.baustein-card {
    display: flex;
    gap: 16px;
    padding: 18px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: transform var(--transition-fast), border var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.baustein-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
}

.baustein-card:active {
    transform: scale(0.98);
}

.card-icon {
    font-size: 2.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    width: 54px;
    height: 54px;
    flex-shrink: 0;
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.card-content h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    font-weight: 700;
}

.card-content h5 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.card-status {
    font-size: 0.75rem;
    margin-top: 6px;
    font-weight: 600;
    color: var(--teal);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Gradients for Baustein Cards Left Borders */
.card-gradient-1::before { background: linear-gradient(to bottom, #818cf8, #4f46e5); }
.card-gradient-2::before { background: linear-gradient(to bottom, #fb7185, #e11d48); }
.card-gradient-3::before { background: linear-gradient(to bottom, #34d399, #059669); }
.card-gradient-kompass::before { background: linear-gradient(to bottom, #fbbf24, #d97706); }

/* Learning Tip Card */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.tip-card {
    border-left: 4px solid var(--accent);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tip-tag {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 0.02em;
}

.tip-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* Baustein Header Details */
.baustein-header-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(99, 102, 241, 0.05) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.back-btn {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 0;
}

.back-btn svg {
    width: 14px;
    height: 14px;
}

.baustein-header-card h2 {
    font-size: 1.4rem;
    line-height: 1.2;
}

.baustein-header-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 4px;
    gap: 2px;
}

.tab-link {
    flex: 1;
    text-align: center;
    padding: 10px 4px;
    font-size: 0.82rem;
    font-weight: 600;
    border: none;
    border-radius: 25px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.tab-link.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Tab Contents */
.tab-content {
    display: none;
    flex-direction: column;
    gap: 16px;
    animation: fadeIn 0.2s ease-in-out;
}

.tab-content.active {
    display: flex;
}

/* Lernstoff Style Containers */
.reading-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.concept-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.concept-header {
    padding: 14px 16px;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.08) 0%, rgba(255, 255, 255, 0) 100%);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.concept-header span {
    font-size: 1.4rem;
}

.concept-header h4 {
    font-size: 1rem;
    font-weight: 700;
}

.concept-body {
    padding: 16px;
    font-size: 0.92rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.concept-body p strong {
    color: var(--text-primary);
}

.concept-body ul {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.concept-body li::marker {
    color: var(--primary);
}

/* Specific highlight blocks inside reading */
.law-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 700;
}

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

.example-box {
    background: rgba(245, 158, 11, 0.05);
    border-left: 4px solid var(--accent);
    padding: 12px 14px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.example-box.blue-example {
    background: rgba(59, 130, 246, 0.05);
    border-left-color: var(--primary);
}

.example-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.example-body {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Case study styles (Praxis & Fälle) */
.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: var(--shadow-sm);
}

.case-badge {
    align-self: flex-start;
    font-size: 0.72rem;
    text-transform: uppercase;
    font-weight: 800;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 12px;
    letter-spacing: 0.02em;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.case-card h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.case-task {
    background: rgba(99, 102, 241, 0.03);
    border: 1px dashed var(--border-color);
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
}

.case-task strong {
    color: var(--primary);
}

.reveal-container {
    margin-top: 6px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.reveal-btn {
    width: 100%;
    background: var(--border-color);
    color: var(--text-primary);
    border: none;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: background var(--transition-fast);
}

.reveal-btn:active {
    background: var(--bg-card-hover);
}

.reveal-btn svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-normal);
}

.reveal-btn.active svg {
    transform: rotate(180deg);
}

.solution-panel {
    display: none;
    background: rgba(16, 185, 129, 0.03);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-left: 4px solid var(--success);
    padding: 14px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text-secondary);
    animation: fadeIn var(--transition-fast) forwards;
}

.solution-panel h5 {
    color: var(--success);
    margin-bottom: 6px;
    font-size: 0.92rem;
}

.solution-panel ul {
    margin-top: 6px;
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Interactive Games Layouts */
.game-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: var(--shadow-sm);
}

.game-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Lückentext (Cloze Test) Styling */
.cloze-text {
    line-height: 2.2;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.cloze-input {
    display: inline-block;
    width: 100px;
    height: 28px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    text-align: center;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0 4px;
    transition: border var(--transition-fast);
}

.cloze-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
}

.cloze-input.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.cloze-input.incorrect {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.game-action-row {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

.primary-btn {
    background: var(--primary);
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
}

.primary-btn:active {
    transform: scale(0.97);
}

.outline-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.outline-btn:active {
    background: var(--bg-app);
}

/* Matching Task (Zuordnungsaufgabe) */
.matching-game {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.matching-row {
    display: flex;
    flex-direction: column;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    gap: 8px;
}

.matching-phrase {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
}

.matching-select {
    width: 100%;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 0 10px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: border var(--transition-fast);
}

.matching-select:focus {
    outline: none;
    border-color: var(--primary);
}

.matching-select.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.05);
    color: var(--success);
}

.matching-select.incorrect {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.05);
    color: var(--error);
}

/* Quiz Card Frame */
.quiz-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.quiz-progress {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-tertiary);
}

.quiz-progress-bar-bg {
    width: 70%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.quiz-progress-bar-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.quiz-question {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.option-btn {
    text-align: left;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast), border var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.option-btn:hover {
    background: var(--bg-card-hover);
}

.option-btn:active {
    transform: scale(0.99);
}

/* Quiz Option States */
.option-btn.selected-correct {
    background: rgba(16, 185, 129, 0.1) !important;
    border-color: var(--success) !important;
    color: var(--success);
    font-weight: 600;
}

.option-btn.selected-incorrect {
    background: rgba(239, 68, 68, 0.1) !important;
    border-color: var(--error) !important;
    color: var(--error);
    font-weight: 600;
}

.option-btn.show-correct {
    background: rgba(16, 185, 129, 0.05);
    border-color: var(--success);
}

.option-btn:disabled {
    pointer-events: none;
}

/* Quiz Explanations */
.quiz-explanation {
    background: var(--info-light);
    color: var(--text-primary);
    border-left: 4px solid var(--info);
    padding: 12px;
    border-radius: 4px;
    font-size: 0.82rem;
    line-height: 1.5;
    animation: fadeIn 0.25s ease-in-out;
}

/* Quiz Score Card */
.quiz-score-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 30px 20px;
}

.score-emoji {
    font-size: 3.5rem;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.1));
}

.score-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.quiz-score-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 300px;
}

/* Paragraphs View (Kompass) */
.search-header {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.search-header h2 {
    font-size: 1.3rem;
}

.search-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

#search-input {
    width: 100%;
    height: 44px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0 35px 0 14px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.88rem;
    transition: border var(--transition-fast);
}

#search-input:focus {
    outline: none;
    border-color: var(--primary);
}

#search-clear-btn {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.1rem;
    cursor: pointer;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 4px;
}

.filter-tag {
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.filter-tag.active {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

/* Paragraph card in results */
.paragraphs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.paragraph-result-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform var(--transition-fast);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.paragraph-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.paragraph-number {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--primary);
}

.paragraph-law {
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--border-color);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--text-secondary);
}

.paragraph-content {
    font-size: 0.88rem;
    color: var(--text-primary);
}

.paragraph-tip {
    font-size: 0.8rem;
    color: var(--teal);
    background: rgba(20, 184, 166, 0.05);
    padding: 8px 10px;
    border-radius: 4px;
    border-left: 3px solid var(--teal);
}

.no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Bottom Nav bar */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 64px;
    background: rgba(19, 25, 38, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 600px;
    margin: 0 auto;
    z-index: 100;
    transition: background var(--transition-normal), border-top var(--transition-normal);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    gap: 3px;
    height: 100%;
    transition: color var(--transition-fast);
}

.nav-icon {
    width: 22px;
    height: 22px;
    transition: transform var(--transition-fast);
}

.nav-item:active .nav-icon {
    transform: scale(0.85);
}

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

/* Desktop Responsiveness */
@media (min-width: 601px) {
    #app {
        border-left: 1px solid var(--border-color);
        border-right: 1px solid var(--border-color);
    }
}