/* =============================================
   CF Portfolio - Main Stylesheet
   ============================================= */

/* CSS Variables */
:root {
    --color-primary: #008000;
    --color-primary-dark: #006600;
    --color-primary-light: #00a000;
    --color-secondary: #333;
    --color-background: #f4f4f9;
    --color-surface: #fff;
    --color-text: #333;
    --color-text-light: #666;
    --color-text-muted: #999;
    --color-border: #e0e0e0;
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 15px;
    --radius-lg: 20px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.modal-open {
    overflow: hidden;
}

/* =============================================
   Header and Navigation
   ============================================= */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

.logo-text {
    font-weight: bold;
    font-size: 2.5rem;
    color: #000;
    font-family: sans-serif;
}

.logo-mascot {
    height: 90px;
    width: auto;
    object-fit: contain;
}

nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1rem;
    transition: color var(--transition-normal);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

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

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

/* Burger Menu */
.burger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: var(--spacing-xs);
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--color-secondary);
    margin: 5px;
    transition: all var(--transition-normal);
}

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.toggle .line2 {
    opacity: 0;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* =============================================
   Hero Section
   ============================================= */
.hero {
    position: relative;
    height: var(--hero-height, 60vh);
    min-height: 500px;
    overflow: hidden;
    background-color: var(--color-primary);
}

.hero-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Hero Slider */
.hero-slider {
    position: relative;
    height: var(--hero-height, 60vh);
    min-height: 500px;
    overflow: hidden;
    background-color: var(--color-primary);
}

.hero-slides-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    z-index: 2;
}

.hero-slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 1;
}

.hero-slide .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, var(--overlay-opacity, 0.3));
    z-index: 1;
}

.hero-slider .hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 3;
    width: 90%;
    max-width: 800px;
}

.hero-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 3;
    pointer-events: none;
}

.hero-nav {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    pointer-events: all;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding: 0;
}

.hero-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

.hero-nav:active {
    transform: scale(0.95);
}

.hero-indicators {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
    z-index: 3;
}

.hero-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition-normal);
    padding: 0;
}

.hero-indicator:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: scale(1.2);
}

.hero-indicator.active {
    background: #fff;
    border-color: #fff;
    transform: scale(1.3);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,var(--overlay-opacity, 0.3)), rgba(0,0,0,0.5));
    z-index: 2;
}

.hero-content {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 100%;
    z-index: 3;
    padding: 0 var(--spacing-lg);
}

.hero-content h1 {
    font-size: 4.5rem;
    font-weight: bold;
    color: #fff;
    font-family: sans-serif;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255,255,255,0.9);
    margin-top: var(--spacing-sm);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

/* Mini Hero for Subpages */
.mini-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    color: #fff;
}

.mini-hero h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.mini-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* =============================================
   Cards Section (Home)
   ============================================= */
.cards-section {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 10%;
    background-color: var(--color-background);
    width: 100%;
}

.card {
    background-color: var(--color-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    flex: 1 1 220px;
    max-width: 240px;
    height: 220px;
    text-align: center;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: var(--color-primary);
    position: absolute;
    top: 0;
    left: 0;
}

.card h2 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    font-size: 1.25rem;
    color: #fff;
    font-weight: 600;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    z-index: 10;
    text-align: center;
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    z-index: 10;
}

.card-overlay h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.card-description {
    font-size: 0.85rem;
    opacity: 0.9;
}

.card-link {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 11;
}

/* =============================================
   Page Content
   ============================================= */
.page-content {
    flex: 1;
    padding: var(--spacing-lg) 10%;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

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

.section-intro h2 {
    font-size: 2rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.section-intro p {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.no-content {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--spacing-xl);
    font-style: italic;
}

/* =============================================
   Category Filter
   ============================================= */
.filter-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-surface);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--color-primary);
    color: #fff;
}

/* =============================================
   Moments Gallery
   ============================================= */
.moments-grid,
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.moments-grid .card {
    max-width: none;
    height: 250px;
}

.no-results {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--spacing-xl);
    grid-column: 1 / -1;
}

/* =============================================
   Articles
   ============================================= */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.article-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.article-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.article-content {
    padding: var(--spacing-md);
}

.article-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.article-tag.security-tag {
    background-color: #dc3545;
}

.article-tag.crypto-tag {
    background-color: #f7931a;
}

.article-content h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.article-content p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.article-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   Resources Section
   ============================================= */
.resources-section,
.tools-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.resources-section h2,
.tools-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary-dark);
}

.resources-grid,
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.resource-card,
.tool-card {
    display: block;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    text-align: center;
}

.resource-card:hover,
.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.resource-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-sm);
    background-color: var(--color-primary);
    border-radius: 50%;
    display: block;
}

.resource-card h4,
.tool-card h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary-dark);
}

.resource-card p,
.tool-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.tool-category {
    display: inline-block;
    padding: 2px 8px;
    background-color: var(--color-background);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

/* =============================================
   Tips Section
   ============================================= */
.tips-section {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-sm);
}

.tips-section h2 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.tips-list {
    list-style: none;
}

.tips-list li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.tips-list li:last-child {
    border-bottom: none;
}

.tips-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* =============================================
   Crypto Section
   ============================================= */
.crypto-prices-section {
    margin-bottom: var(--spacing-xl);
}

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

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

.crypto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.crypto-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.crypto-card:hover {
    box-shadow: var(--shadow-md);
}

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

.crypto-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.crypto-name h4 {
    font-size: 1rem;
    margin: 0;
}

.crypto-symbol {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.crypto-price {
    margin-bottom: var(--spacing-xs);
}

.price-value {
    font-size: 1.25rem;
    font-weight: bold;
    display: block;
}

.price-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.price-change.positive {
    color: var(--color-success);
}

.price-change.negative {
    color: var(--color-error);
}

.crypto-meta {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.data-source {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

/* =============================================
   Portfolio Section
   ============================================= */
.portfolio-section {
    margin-bottom: var(--spacing-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.portfolio-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-background);
    border-radius: var(--radius-sm);
}

.portfolio-summary-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.summary-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-text);
}

.portfolio-summary-item.positive .summary-value {
    color: var(--color-success);
}

.portfolio-summary-item.negative .summary-value {
    color: var(--color-error);
}

.portfolio-table-container {
    overflow-x: auto;
}

.portfolio-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-md);
}

.portfolio-table thead {
    background-color: var(--color-background);
}

.portfolio-table th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
}

.portfolio-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.portfolio-table tbody tr:hover {
    background-color: var(--color-background);
}

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

.portfolio-coin-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.portfolio-coin-symbol {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.portfolio-table .positive {
    color: var(--color-success);
    font-weight: 600;
}

.portfolio-table .negative {
    color: var(--color-error);
    font-weight: 600;
}

.portfolio-table svg {
    vertical-align: middle;
}

/* =============================================
   Contact Section
   ============================================= */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-form-wrapper h2 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.contact-form-wrapper > p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    background-color: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

.form-feedback {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.form-feedback.hidden {
    display: none;
}

.form-feedback.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-feedback.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.contact-info {
    padding: var(--spacing-lg);
}

.contact-info h3 {
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-method {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-method h4 {
    margin-bottom: 4px;
    color: var(--color-text);
}

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

.contact-method a:hover {
    text-decoration: underline;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: #fff;
}

.btn-large {
    padding: 14px 28px;
    font-size: 1.1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background-color: var(--color-surface);
    border: 2px solid var(--color-border);
    color: var(--color-text);
}

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

.refresh-btn.spinning {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* =============================================
   Modal
   ============================================= */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-content.article-modal-container {
    max-width: 900px;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text-muted);
    z-index: 10;
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: var(--spacing-lg);
}

.project-modal-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    display: block;
}

.project-modal h2 {
    margin-bottom: var(--spacing-xs);
}

.project-category {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.project-date {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

/* =============================================
   Article Modal
   ============================================= */
.article-modal {
    max-width: 800px;
    margin: 0 auto;
}

.article-modal-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

.article-modal-header {
    margin-bottom: var(--spacing-lg);
}

.article-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.article-modal-header h1 {
    font-size: 2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.article-modal-meta {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.article-modal-content {
    padding: var(--spacing-lg) 0;
    line-height: 1.8;
    color: var(--color-text);
}

.article-modal-content p {
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
}

.article-modal-content h1,
.article-modal-content h2,
.article-modal-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.article-modal-content h1 {
    font-size: 1.8rem;
}

.article-modal-content h2 {
    font-size: 1.5rem;
}

.article-modal-content h3 {
    font-size: 1.2rem;
}

.article-modal-content ul,
.article-modal-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.article-modal-content li {
    margin-bottom: var(--spacing-xs);
}

.article-modal-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-style: italic;
    color: var(--color-text-light);
}

.article-modal-content code {
    background-color: var(--color-background);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.article-modal-content pre {
    background-color: var(--color-background);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.article-modal-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.article-modal-content a:hover {
    color: var(--color-primary-dark);
}

.article-modal-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

/* =============================================
   Loading States
   ============================================= */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-spinner.small {
    width: 20px;
    height: 20px;
    border-width: 2px;
    display: inline-block;
    vertical-align: middle;
    margin-right: var(--spacing-xs);
}

/* =============================================
   Error Page
   ============================================= */
.error-page {
    text-align: center;
    padding: var(--spacing-xl);
}

.error-page h2 {
    color: var(--color-error);
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   Footer
   ============================================= */
footer {
    text-align: center;
    padding: 0.75rem 10%;
    background-color: var(--color-secondary);
    color: #fff;
    margin-top: auto;
}

footer p {
    max-width: 1200px;
    margin: 0 auto;
    font-size: 0.85rem;
}

/* =============================================
   Responsive Design
   ============================================= */
@media screen and (max-width: 968px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: -1;
        padding: var(--spacing-md);
        background-color: var(--color-surface);
        border-radius: var(--radius-md);
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: 0;
        height: calc(100vh - 90px);
        top: 90px;
        background-color: var(--color-surface);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        width: 70%;
        max-width: 300px;
        transform: translateX(100%);
        transition: transform var(--transition-slow);
        box-shadow: -2px 0 10px rgba(0,0,0,0.1);
        padding-top: var(--spacing-lg);
        gap: 0;
    }

    .nav-links.nav-active {
        transform: translateX(0);
    }

    .nav-links li {
        opacity: 0;
        margin: var(--spacing-sm) 0;
        width: 100%;
        text-align: center;
    }

    .nav-links.nav-active li {
        animation: navLinkFade 0.5s ease forwards;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .burger {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .mini-hero h1 {
        font-size: 2rem;
    }

    .card {
        width: 100%;
        max-width: 280px;
    }

    .cards-section {
        padding: var(--spacing-lg) 5%;
        gap: var(--spacing-md);
    }

    .page-content {
        padding: var(--spacing-lg) 5%;
    }

    .articles-grid,
    .moments-grid {
        grid-template-columns: 1fr;
    }

    .crypto-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .filter-section {
        flex-direction: column;
    }

}

@media screen and (max-width: 480px) {
    .logo-text {
        font-size: 2rem;
    }

    .logo-mascot {
        height: 60px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .crypto-grid {
        grid-template-columns: 1fr;
    }

    .resources-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .album-select {
        min-width: 150px;
    }
}

/* Animation Keyframes */
@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}