/* ===================================
   リセットとベーススタイル
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec4899;
    --accent-color: #f59e0b;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-color: #e2e8f0;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

/* ===================================
   ナビゲーションバー
   =================================== */
.navbar {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--bg-secondary);
    color: var(--primary-light);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===================================
   ヒーローセクション - AIテーマ
   =================================== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
}

.neural-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
    animation: fadeInUp 1s ease-out;
}

.ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

.ai-badge i {
    color: var(--primary-light);
    font-size: 1.25rem;
}

.ai-badge span {
    color: var(--primary-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    min-height: 5rem;
}

.typing-text {
    background: linear-gradient(135deg, #818cf8 0%, #ec4899 50%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.cursor {
    color: var(--primary-light);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-subtitle {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.subtitle-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin-top: 4rem;
    padding: 0 2rem;
}

.stat-card {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

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

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

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

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

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


/* ===================================
   セクション共通スタイル
   =================================== */
.featured-posts,
.skills {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

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

/* ===================================
   記事グリッド
   =================================== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.post-card {
    background-color: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.post-card-header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    padding: 1.5rem;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.post-card-icon {
    font-size: 3rem;
    color: white;
}

.post-card-body {
    padding: 1.5rem;
}

.post-card-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.post-card-date {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-card-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.post-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--bg-secondary);
    color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}

.tag:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

/* ===================================
   スキルカード
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.skill-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.skill-card p {
    color: var(--text-secondary);
}

/* ===================================
   フッター
   =================================== */
.footer {
    background-color: var(--bg-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-color);
    border-radius: 50%;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

.footer-bottom p {
    margin: 0.5rem 0;
}

/* ===================================
   ページヘッダー
   =================================== */
.page-header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

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

.page-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ===================================
   ブログレイアウト
   =================================== */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    margin: 3rem 0;
}

.blog-main {
    min-width: 0;
}

.filter-bar {
    margin-bottom: 2rem;
}

.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1rem;
}

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

.filter-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

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

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-item {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.post-item:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.post-item-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.post-item-meta {
    display: flex;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.post-item-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

.no-results i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* ===================================
   サイドバー
   =================================== */
.blog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-card {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.sidebar-card h3 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.category-list,
.archive-list {
    list-style: none;
}

.category-list li,
.archive-list li {
    margin-bottom: 0.5rem;
}

.category-list a,
.archive-list a {
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.category-list a:hover,
.archive-list a:hover {
    background-color: var(--bg-secondary);
    color: var(--primary-light);
}

.count {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===================================
   Aboutページスタイル
   =================================== */
.about-content {
    max-width: 900px;
    margin: 3rem auto;
}

.about-intro {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}

.about-avatar img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
}

.about-text h2 {
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.about-section {
    margin-bottom: 3rem;
}

.about-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.tech-grid {
    display: grid;
    gap: 1.5rem;
}

.tech-category {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.tech-category h3 {
    margin-bottom: 1rem;
    color: var(--primary-light);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tech-tag:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 3px solid var(--bg-color);
}

.timeline-content {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-period {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.timeline-content ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
}

.timeline-content li {
    margin-bottom: 0.5rem;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.interest-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.interest-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.interest-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.interest-card h3 {
    font-size: 1rem;
}

.contact-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.contact-link i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.blog-topics {
    list-style: none;
    color: var(--text-secondary);
}

.blog-topics li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.blog-topics i {
    color: var(--success-color);
}

/* ===================================
   CVページスタイル
   =================================== */
.cv-content {
    max-width: 1000px;
    margin: 3rem auto;
}

.cv-section {
    margin-bottom: 3rem;
}

.cv-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

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

.cv-profile ul {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    list-style: none;
}

.cv-profile li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.cv-profile strong {
    color: var(--text-color);
}

.skill-category {
    margin-bottom: 2rem;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-light);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.skill-item {
    background-color: var(--bg-card);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.skill-item h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.skill-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.project-card {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--primary-color);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.project-period {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.project-details {
    display: grid;
    gap: 1rem;
}

.project-item h4 {
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.project-item p,
.project-item ul {
    color: var(--text-secondary);
}

.project-item ul {
    padding-left: 1.5rem;
}

.project-item li {
    margin-bottom: 0.25rem;
}

.work-experience {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.work-item {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.work-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.work-company {
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.work-period {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.work-description h4 {
    color: var(--text-color);
    margin: 1rem 0 0.5rem;
}

.work-description ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.work-description li {
    margin-bottom: 0.5rem;
}

.work-description p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.education-items {
    display: grid;
    gap: 1.5rem;
}

.education-item {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.education-item h4 {
    color: var(--primary-light);
    margin-bottom: 0.75rem;
}

.education-item ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
}

.education-item li {
    margin-bottom: 0.5rem;
}

.personal-projects {
    display: grid;
    gap: 1.5rem;
}

.personal-item {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.personal-item h4 {
    color: var(--primary-light);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.personal-item ul {
    color: var(--text-secondary);
    padding-left: 1.5rem;
}

.personal-item li {
    margin-bottom: 0.5rem;
}

.cv-contact ul {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    list-style: none;
}

.cv-contact li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.cv-download {
    text-align: center;
    margin-top: 3rem;
}

/* ===================================
   レスポンシブデザイン
   =================================== */
@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }

    .blog-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-animation {
        order: -1;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .about-intro {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-avatar {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

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

    .filter-btn {
        width: 100%;
    }
}