:root {
    --bg-primary: #F5F5F5;
    --bg-secondary: #E5E5E5;
    --bg-dark: #1A1A1A;
    --text-primary: #1A1A1A;
    --text-secondary: #404040;
    --text-muted: #737373;
    --accent: #FFFF00;
    --accent-hover: #E6E600;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

main {
    flex: 1;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

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

ul, ol {
    list-style-position: inside;
}

::selection {
    background-color: var(--accent);
    color: var(--text-primary);
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 48px;
    }
}

/* ===== Header ===== */
.header {
    padding: 24px 0;
    background-color: var(--bg-primary);
}

@media (min-width: 768px) {
    .header {
        padding: 32px 0;
    }
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

@media (min-width: 768px) {
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

.header-left {
    display: flex;
    flex-direction: column;
}

.logo {
    display: inline-block;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .logo-text {
        font-size: 2.25rem;
    }
}

.logo-text em {
    font-style: italic;
}

.tagline {
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    max-width: 400px;
}

@media (min-width: 768px) {
    .tagline {
        font-size: 1rem;
    }
}

.nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

@media (min-width: 768px) {
    .nav {
        gap: 32px;
    }
}

.nav-link {
    font-size: 1rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* ===== Hero Section ===== */
.hero {
    padding: 48px 0 64px;
}

@media (min-width: 768px) {
    .hero {
        padding: 80px 0;
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
    }
}

.hero-text {
    order: 2;
}

@media (min-width: 1024px) {
    .hero-text {
        order: 1;
    }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

.highlight {
    background-color: var(--accent);
    padding: 0 8px;
}

.hero-description {
    margin-top: 24px;
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .hero-description {
        font-size: 1.125rem;
    }
}

.hero-image {
    order: 1;
    aspect-ratio: 1;
    overflow: hidden;
}

@media (min-width: 1024px) {
    .hero-image {
        order: 2;
    }
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== Articles Section ===== */
.articles-section {
    padding: 48px 0 64px;
}

@media (min-width: 768px) {
    .articles-section {
        padding: 64px 0;
    }
}

.section-title {
    font-family: var(--font-serif);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

/* ===== Article Preview ===== */
.article-preview {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .article-preview {
        grid-template-columns: 1fr 2fr;
        gap: 32px;
    }
}

.article-preview:first-of-type {
    padding-top: 0;
}

.article-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--bg-secondary);
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-preview:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.3;
}

@media (min-width: 768px) {
    .article-title {
        font-size: 1.5rem;
    }
}

.article-preview:hover .article-title {
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 4px;
    text-underline-offset: 4px;
}

.article-excerpt {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== CV Page ===== */
.cv-section {
    padding: 48px 0;
}

@media (min-width: 768px) {
    .cv-section {
        padding: 64px 0 80px;
    }
}

.cv-block {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 64px;
}

@media (min-width: 768px) {
    .cv-block {
        grid-template-columns: 1fr 2fr;
        gap: 48px;
    }
}

.yellow-block {
    background-color: var(--accent);
    height: 96px;
    width: 100%;
}

@media (min-width: 768px) {
    .yellow-block {
        height: 128px;
    }
}

.cv-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .cv-title {
        font-size: 3rem;
    }
}

.cv-title em {
    font-weight: 400;
    font-style: italic;
}

.cv-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .cv-text {
        font-size: 1.125rem;
    }
}

/* Skills Tags */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    padding: 8px 16px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    cursor: default;
}

.skill-tag:hover {
    background-color: var(--accent);
    border-color: var(--accent);
}

/* Work Experience */
.job-item {
    margin-bottom: 40px;
}

.job-item:last-child {
    margin-bottom: 0;
}

.job-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.job-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

@media (min-width: 768px) {
    .job-title {
        font-size: 1.5rem;
    }
}

.job-company {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.job-duties {
    color: var(--text-secondary);
    line-height: 1.8;
}

.job-duties li {
    margin-bottom: 8px;
}

/* ===== Contact Page ===== */
.contact-header {
    padding: 48px 0;
    max-width: 640px;
}

@media (min-width: 768px) {
    .contact-header {
        padding: 80px 0 48px;
    }
}

.contact-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .contact-title {
        font-size: 3.75rem;
    }
}

.contact-yellow-block {
    background-color: var(--accent);
    height: 128px;
    width: 100%;
    max-width: 512px;
}

@media (min-width: 768px) {
    .contact-yellow-block {
        height: 160px;
    }
}

.contact-form-section {
    padding: 32px 0 80px;
}

.form-title {
    font-family: var(--font-serif);
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

@media (min-width: 768px) {
    .form-title {
        font-size: 2.25rem;
    }
}

.form-title em {
    font-weight: 400;
    font-style: italic;
}

.form-subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-form {
    max-width: 640px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 16px;
    background-color: var(--bg-secondary);
    border: none;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-primary);
    transition: box-shadow 0.2s ease;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--accent);
}

.form-textarea {
    resize: none;
    min-height: 150px;
}

.form-submit {
    background-color: var(--accent);
    color: var(--text-primary);
    padding: 16px 40px;
    border: none;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.form-submit:hover {
    background-color: var(--accent-hover);
}

.form-success {
    margin-top: 16px;
    padding: 16px;
    background-color: rgba(255, 255, 0, 0.2);
    border: 1px solid var(--accent);
    color: var(--text-primary);
    display: none;
}

.form-success.show {
    display: block;
}

/* ===== Article Page ===== */
.article-page {
    padding: 32px 0 64px;
}

@media (min-width: 768px) {
    .article-page {
        padding: 48px 0;
    }
}

.article-container {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .article-container {
        padding: 0 48px;
    }
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--text-primary);
}

.back-link svg {
    width: 16px;
    height: 16px;
}

.article-page-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.article-page-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .article-page-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .article-page-title {
        font-size: 3rem;
    }
}

.article-featured-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background-color: var(--bg-secondary);
    margin-bottom: 32px;
}

.article-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-body {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

@media (min-width: 768px) {
    .article-body {
        font-size: 1.125rem;
    }
}

.article-body h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 40px;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .article-body h2 {
        font-size: 1.875rem;
    }
}

.article-body p {
    margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 8px;
}

/* ===== Article Carousel ===== */
.carousel-section {
    padding: 48px 0 64px;
    background-color: var(--bg-secondary);
}

@media (min-width: 768px) {
    .carousel-section {
        padding: 64px 0;
    }
}

.carousel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.carousel-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .carousel-title {
        font-size: 1.875rem;
    }
}

.carousel-buttons {
    display: flex;
    gap: 8px;
}

.carousel-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

.carousel-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding-bottom: 16px;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.carousel-item {
    flex-shrink: 0;
    width: 300px;
}

.carousel-item-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: #ccc;
    margin-bottom: 16px;
}

.carousel-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.carousel-item:hover .carousel-item-image img {
    transform: scale(1.05);
}

.carousel-item-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.carousel-item-title {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.carousel-item:hover .carousel-item-title {
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

/* ===== Privacy Page ===== */
.privacy-section {
    padding: 48px 0 80px;
}

@media (min-width: 768px) {
    .privacy-section {
        padding: 80px 0;
    }
}

.privacy-container {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .privacy-container {
        padding: 0 48px;
    }
}

.privacy-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .privacy-title {
        font-size: 3rem;
    }
}

.privacy-content {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

@media (min-width: 768px) {
    .privacy-content {
        font-size: 1.125rem;
    }
}

.privacy-content h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 40px;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .privacy-content h2 {
        font-size: 1.875rem;
    }
}

.privacy-content p {
    margin-bottom: 16px;
}

.privacy-content ul {
    margin-bottom: 24px;
    padding-left: 24px;
}

.privacy-content li {
    margin-bottom: 8px;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--bg-dark);
    color: white;
    padding: 64px 0;
}

@media (min-width: 768px) {
    .footer {
        padding: 80px 0;
    }
}

.newsletter {
    text-align: center;
    margin-bottom: 48px;
}

.newsletter-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

@media (min-width: 768px) {
    .newsletter-title {
        font-size: 1.875rem;
    }
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 400px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .newsletter-form {
        flex-direction: row;
    }
}

.newsletter-input {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-family: var(--font-sans);
    font-size: 1rem;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--accent);
}

.newsletter-btn {
    padding: 12px 32px;
    background-color: var(--accent);
    color: var(--text-primary);
    border: none;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.newsletter-btn:hover {
    background-color: var(--accent-hover);
}

.newsletter-success {
    margin-top: 16px;
    color: var(--accent);
    font-size: 0.875rem;
    display: none;
}

.newsletter-success.show {
    display: block;
}

.footer-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin: 32px 0;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

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

@media (min-width: 768px) {
    .footer-contact {
        text-align: left;
    }
}

.footer-email {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: 8px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--accent);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}