/* main.css - Shared styles for all DIL pages - White Background */

* {
    -webkit-tap-highlight-color: transparent;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
}

.allow-select,
.section-content p,
.mission-text,
.value-card p,
.story-text,
.impact-text,
.team-bio,
.stat-description,
.hero-description,
.why-dil-card p,
.timeline-item p {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
    cursor: text;
}

:root {
    --primary-blue: #1E90FF;
    --dark-blue: #0E4DA4;
    --light-blue: #E6F0FF;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #888888;
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --border-light: #E0E0E0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --gradient-blue: linear-gradient(135deg, #1E90FF 0%, #0E4DA4 100%);
    --help-green: #28a745;
    --help-light: #f0fff4;
    --help-dark: #2d6a4f;
    --delay-red: #dc3545;
    --delay-light: #fff5f5;
    --delay-dark: #b0413e;
}

html {
    scroll-behavior: smooth;
    font-size: 15px;
}

body {
    font-family: 'Manrope', 'IBM Plex Sans', 'Source Sans Pro', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
    min-height: 100vh;
}

h1, h2, h3, h4 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

h1 {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: -0.3px;
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    position: relative;
    font-weight: 500;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 3.5rem;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 2px;
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

p {
    margin-bottom: 1.2rem;
    color: var(--text-gray);
    font-size: 1.05rem;
    line-height: 1.6;
    font-weight: 400;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

p strong {
    color: var(--text-dark);
    font-weight: 400;
}

.lead-text {
    font-size: 1.15rem;
    line-height: 1.7;
    font-weight: 300;
    color: var(--text-gray);
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
.main-header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-light);
}

.main-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.main-logo .logo-icon {
    font-size: 1.8rem;
    padding: 0.5rem;
    background: rgba(30, 144, 255, 0.12);
    border-radius: 10px;
    border: 1px solid rgba(30, 144, 255, 0.25);
    transition: all 0.3s ease;
}

.logo-tagline {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.3;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-gray);
    font-weight: 400;
    padding: 0.4rem 0;
    position: relative;
    font-size: 0.95rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-nav a i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.main-nav a:hover, 
.main-nav a.active {
    color: var(--primary-blue);
}

.main-nav a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.main-nav a:hover:after,
.main-nav a.active:after {
    width: 100%;
}

/* Mobile Header */
.mobile-header {
    display: none;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: 0.8rem 1.2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-light);
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.mobile-logo .logo-icon {
    font-size: 1.7rem;
    padding: 0.4rem;
    background: rgba(30, 144, 255, 0.12);
    border-radius: 8px;
    border: 1px solid rgba(30, 144, 255, 0.25);
    transition: all 0.3s ease;
}

.mobile-nav-toggle {
    background: rgba(30, 144, 255, 0.12);
    border: 1px solid var(--border-light);
    color: var(--text-dark);
    font-size: 1.1rem;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1001;
}

.mobile-nav-toggle:hover {
    background: rgba(30, 144, 255, 0.18);
    transform: rotate(90deg);
}

/* Sidebar - Updated to appear from left */
.sidebar {
    position: fixed;
    top: 0;
    left: -320px;
    width: 300px;
    height: 100vh;
    background: var(--white);
    border-right: 1px solid var(--border-light);
    z-index: 9999;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 4rem 1.5rem 1.5rem;
    overflow-y: auto;
    box-shadow: 10px 0 40px rgba(0, 0, 0, 0.1);
}

.sidebar.active {
    left: 0;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.sidebar-header {
    margin-bottom: 2.5rem;
    text-align: center;
}

.sidebar-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.sidebar-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    padding: 0.7rem;
    background: rgba(30, 144, 255, 0.15);
    border-radius: 10px;
    border: 1px solid rgba(30, 144, 255, 0.3);
}

.sidebar-tagline {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-top: 0.25rem;
    font-weight: 400;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.sidebar-nav {
    list-style: none;
    margin-bottom: 1.5rem;
}

.sidebar-nav li {
    margin-bottom: 0.4rem;
}

.sidebar-nav a {
    display: block;
    padding: 0.8rem 1.2rem;
    color: var(--text-gray);
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 400;
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(30, 144, 255, 0.1);
    color: var(--primary-blue);
    border-color: rgba(30, 144, 255, 0.2);
    transform: translateX(5px);
}

.sidebar-nav i {
    width: 20px;
    text-align: center;
    margin-right: 8px;
    color: var(--primary-blue);
}

.sidebar-close {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
    color: var(--text-dark);
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.sidebar-close:hover {
    background: rgba(0, 0, 0, 0.08);
    transform: rotate(90deg);
}

/* Page Hero */
.page-hero {
    min-height: 30vh;
    display: flex;
    align-items: center;
    padding: 4rem 1.2rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--border-light);
}

.page-hero-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 1.2rem;
    color: var(--text-dark);
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
    line-height: 1.1;
}

.page-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    font-weight: 300;
    letter-spacing: -0.1px;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0 3rem;
    flex-wrap: wrap;
    padding: 0 1rem;
}

.category-tab {
    padding: 0.8rem 2rem;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    color: var(--text-gray);
    font-size: 1rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    box-shadow: var(--shadow-sm);
}

.category-tab i {
    color: var(--primary-blue);
    font-size: 1.1rem;
}

.category-tab:hover, .category-tab.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-tab:hover i, .category-tab.active i {
    color: var(--white);
}

/* Questions Grid */
.questions-section {
    margin-top: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.section-header i {
    font-size: 2rem;
    color: var(--primary-blue);
    background: var(--light-blue);
    padding: 1rem;
    border-radius: 15px;
}

.section-header h2 {
    margin-bottom: 0;
}

.questions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.question-card {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    padding: 2.2rem 1.8rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: block;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.question-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.question-icon {
    width: 60px;
    height: 60px;
    background: var(--light-blue);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.8rem;
    border: 1px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.question-card:hover .question-icon {
    background: var(--primary-blue);
    transform: rotate(5deg) scale(1.1);
}

.question-card:hover .question-icon i {
    color: var(--white);
}

.question-icon i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.question-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.question-preview {
    color: var(--text-gray);
    font-size: 1.05rem;
    margin-bottom: 1rem;
    line-height: 1.6;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.question-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.question-category {
    font-size: 0.9rem;
    color: var(--primary-blue);
    background: var(--light-blue);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.read-more {
    color: var(--primary-blue);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.read-more i {
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.question-card:hover .read-more i {
    transform: translateX(3px);
}

/* ===== EXPLANATION PAGE STYLES (ADDED FOR NOTE CONTAINER) ===== */

.explanation-hero {
    padding: 3rem 1.2rem;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-light);
}

.explanation-container {
    max-width: 900px;
    margin: 0 auto;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--primary-blue);
    transform: translateX(-5px);
}

.explanation-title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.explanation-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.meta-item {
    background: var(--light-blue);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.95rem;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

/* Single note container - everything in one box */
.explanation-note {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    padding: 2.5rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
    position: relative;
}

/* Simple top accent line */
.explanation-note::before {
    content: '';
    position: absolute;
    top: 0;
    left: 2.5rem;
    right: 2.5rem;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--dark-blue));
    border-radius: 3px;
}

/* Each section flows vertically */
.note-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

/* Last section no border */
.note-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

/* Section headers - simple and clean */
.note-section h2 {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.note-section h2 i {
    color: var(--primary-blue);
    font-size: 1.5rem;
    width: 2rem;
}

/* Paragraph text */
.note-section p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: var(--text-gray);
    font-size: 1.05rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.note-section p:last-child {
    margin-bottom: 0;
}

/* Lists */
.note-section ul, 
.note-section ol {
    margin: 1rem 0 0.5rem 1.5rem;
    color: var(--text-gray);
}

.note-section li {
    margin-bottom: 0.6rem;
    line-height: 1.6;
    font-size: 1.05rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.note-section li:last-child {
    margin-bottom: 0;
}

/* Simple highlight for reassurance section */
.reassurance-note {
    background: var(--light-blue);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 2rem;
    border-left: 3px solid var(--primary-blue);
}

.reassurance-note p {
    margin-bottom: 0;
    color: var(--text-dark);
    font-size: 1.05rem;
    line-height: 1.6;
}

.reassurance-note i {
    color: var(--primary-blue);
    margin-right: 0.5rem;
}

/* Two column layout for what helps/doesn't help */
.note-two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 1.5rem 0 0.5rem;
}

/* Help column - green theme */
.help-column {
    background: var(--help-light);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 3px solid var(--help-green);
}

.help-column h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--help-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.help-column h3 i {
    color: var(--help-green);
}

.help-column ul {
    margin: 0 0 0 1.2rem;
}

.help-column li {
    color: var(--help-dark);
    margin-bottom: 0.6rem;
    font-size: 1.05rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

/* Delay column - red theme */
.delay-column {
    background: var(--delay-light);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 3px solid var(--delay-red);
}

.delay-column h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--delay-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.delay-column h3 i {
    color: var(--delay-red);
}

.delay-column ul {
    margin: 0 0 0 1.2rem;
}

.delay-column li {
    color: var(--delay-dark);
    margin-bottom: 0.6rem;
    font-size: 1.05rem;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

/* Related Questions */
.related-questions {
    margin-top: 3rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.related-link {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-dark);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.related-link:hover {
    border-color: var(--primary-blue);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.related-link i {
    color: var(--primary-blue);
}

/* Download APK Section */
.download-apk-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    border-radius: 24px;
    padding: 3rem 2rem;
    margin: 3rem 0;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.download-apk-section h3 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.download-apk-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    font-weight: 300;
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2.5rem;
    background: var(--white);
    color: var(--primary-blue);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 400;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.download-btn i {
    font-size: 1.3rem;
}

.download-info {
    margin-top: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.download-info i {
    color: var(--white);
    margin-right: 0.3rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-light);
    padding: 3rem 1.2rem 2.5rem;
    background: var(--off-white);
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-section h4 {
    color: var(--text-dark);
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 0.4rem;
    font-weight: 500;
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
}

.footer-section h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 2.2rem;
    height: 2px;
    background: var(--primary-blue);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.7rem;
}

.footer-links a {
    color: var(--text-gray);
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: inline-block;
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.footer-links a:hover {
    color: var(--primary-blue);
    transform: translateX(5px);
}

.footer-contact p {
    margin-bottom: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: var(--text-gray);
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.footer-contact i {
    color: var(--primary-blue);
    width: 18px;
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 1.8rem;
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-gray);
    font-family: 'Source Sans Pro', 'Inter', sans-serif;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.social-links a {
    color: var(--text-gray);
    font-size: 1.4rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-blue);
    transform: translateY(-3px);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }
    
    .mobile-header {
        display: flex;
    }
    
    .main-header {
        display: none;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1.1rem;
    }
    
    .explanation-title {
        font-size: 1.8rem;
    }
    
    .explanation-note {
        padding: 1.5rem;
    }
    
    .explanation-note::before {
        left: 1.5rem;
        right: 1.5rem;
    }
    
    .note-section h2 {
        font-size: 1.3rem;
    }
    
    .note-two-column {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .help-column,
    .delay-column {
        padding: 1.2rem;
    }
    
    .download-apk-section {
        padding: 2rem 1.5rem;
    }
    
    .download-apk-section h3 {
        font-size: 1.5rem;
    }
    
    .download-btn {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }
    
    .questions-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        width: 100%;
        left: -100%;
    }
}

@media (max-width: 480px) {
    .explanation-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .meta-item {
        width: fit-content;
    }
    
    .explanation-note {
        padding: 1.2rem;
    }
    
    .explanation-note::before {
        left: 1.2rem;
        right: 1.2rem;
    }
    
    .note-section h2 {
        font-size: 1.2rem;
    }
    
    .help-column h3,
    .delay-column h3 {
        font-size: 1.1rem;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
}