/* Modern Personal Brand Website - 2026 */

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

:root {
    --color-bg: #ffffff;
    --color-text: #0a0a0a;
    --color-text-light: #666666;
    --color-border: #e5e5e5;
    --color-accent: #0066ff;
    --color-surface: #fafafa;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 96px;

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    font-size: 17px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* === Navigation === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--color-text);
}

.nav-cta {
    background: var(--color-text);
    color: var(--color-bg) !important;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* === Hero === */
.hero {
    padding: 200px var(--space-md) var(--space-xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 900px;
    text-align: center;
}

.hero-image {
    margin-bottom: var(--space-lg);
}

.hero-image img {
    width: 140px;
    height: 140px;
    border-radius: var(--radius-full);
    object-fit: cover;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.hero-title {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: clamp(18px, 2vw, 22px);
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* === Sections === */
section {
    padding: var(--space-xl) var(--space-md);
}

.section-label {
    display: inline-block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-light);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

/* === About === */
.about {
    background: var(--color-surface);
}

.about-content {
    max-width: 800px;
}

.about-body {
    font-size: 19px;
    line-height: 1.8;
    color: var(--color-text-light);
}

.about-body p {
    margin-bottom: var(--space-md);
}

.about-body strong {
    color: var(--color-text);
    font-weight: 600;
}

/* === Work === */
.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--space-lg);
}

.work-card {
    background: var(--color-surface);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.work-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-text);
}

.work-header {
    margin-bottom: var(--space-md);
}

.work-header h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.work-role {
    color: var(--color-text-light);
    font-size: 15px;
    font-weight: 500;
}

.work-description {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.work-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.work-tags span {
    background: var(--color-bg);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-light);
}

.work-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

.work-link:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* === Experience === */
.experience {
    background: var(--color-surface);
}

.timeline {
    max-width: 800px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-year {
    font-size: 14px;
    color: var(--color-text-light);
    font-weight: 600;
    padding-top: 4px;
}

.timeline-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.timeline-company {
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.timeline-content p:last-child {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* === Capabilities === */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.capability-card {
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.capability-card:hover {
    border-color: var(--color-text);
    transform: translateY(-4px);
}

.capability-icon {
    font-size: 36px;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.capability-icon i {
    display: block;
}

.capability-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.capability-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 15px;
}

/* === Education === */
.education {
    background: var(--color-surface);
}

.education-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    justify-content: center;
}

.education-item {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-light);
    padding: var(--space-sm) var(--space-md);
    transition: var(--transition);
    cursor: default;
}

.education-item:hover {
    color: var(--color-text);
    transform: scale(1.05);
}

/* === CTA === */
.cta {
    padding: var(--space-xl) var(--space-md);
    background: var(--color-text);
    color: var(--color-bg);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: 20px;
    opacity: 0.8;
    margin-bottom: var(--space-lg);
}

.cta-links {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    padding: 14px 28px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
}

.cta-button:hover {
    border-color: var(--color-bg);
    transform: translateY(-2px);
}

.cta-button-primary {
    background: var(--color-bg);
    color: var(--color-text);
    border-color: var(--color-bg);
}

.cta-button-primary:hover {
    transform: translateY(-2px) scale(1.05);
}

/* === Footer === */
.footer {
    padding: var(--space-lg) var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-content p {
    color: var(--color-text-light);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* === Responsive === */
@media (max-width: 1024px) {
    .work-grid {
        grid-template-columns: 1fr;
    }

    .timeline-item {
        grid-template-columns: 100px 1fr;
        gap: var(--space-md);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 150px var(--space-md) var(--space-lg);
    }

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

    .timeline-item {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .timeline-year {
        font-size: 13px;
    }

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

    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    section {
        padding: var(--space-lg) var(--space-md);
    }
}

/* === Animations === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.about-content,
.work-card,
.timeline-item,
.capability-card {
    animation: fadeInUp 0.6s ease-out;
}

/* === Dark Mode Support (Optional) === */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0a0a0a;
        --color-text: #ffffff;
        --color-text-light: #a0a0a0;
        --color-border: #2a2a2a;
        --color-surface: #151515;
    }

    .nav {
        background: rgba(10, 10, 10, 0.8);
    }

    .hero-image img {
        box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
    }
}