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

:root {
    --color-bg: #FFFCF6;
    --color-bg-alt: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #756D50;
    --color-accent: #EDFF00;
    --color-accent-dark: #D4E600;
    --color-border: #e5e5e5;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-logo: 'Lexend Tera', sans-serif;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

p {
    color: var(--color-text-muted);
    max-width: 60ch;
}

em {
    font-family: var(--font-serif);
    font-style: italic;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 252, 246, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-icon {
    height: 32px;
    width: auto;
    transition: opacity 0.3s var(--transition-smooth);
}

.logo:hover .logo-icon {
    opacity: 0.7;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s var(--transition-smooth);
}

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

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

/* External link icon (LinkedIn etc.) */
.nav-ext-icon {
    display: inline-block;
    opacity: 0;
    transform: translate(-2px, 2px);
    transition: opacity 0.2s var(--transition-smooth),
                transform 0.2s var(--transition-smooth);
    margin-left: 2px;
    vertical-align: middle;
    line-height: 0;
}

.nav-links a:hover .nav-ext-icon {
    opacity: 1;
    transform: translate(0, 0);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s var(--transition-smooth);
}

/* Hero Section */
.hero {
    overflow: hidden;
    background: var(--color-bg);
}

.hero-inner {
    display: grid;
    grid-template-columns: 680px 1fr;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
}

.hero-portrait {
    height: 135vh;
    width: 100%;
    z-index: 1;
    -webkit-mask-image: radial-gradient(ellipse 83% 51% at 50% 37%, black 37%, transparent 65%);
    mask-image: radial-gradient(ellipse 83% 51% at 50% 37%, black 37%, transparent 65%);
    opacity: 0;
    animation: fadeInUp 0.8s var(--transition-smooth) 0.5s forwards;
    will-change: transform;
    transition: opacity 0.8s ease;
}

.portrait-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 8rem 3rem 4rem 2rem;
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--transition-smooth) forwards;
}

.hero-name {
    font-family: var(--font-logo);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.8s var(--transition-smooth) 0.15s forwards;
}

.hero-subtitle {
    font-size: 1.15rem;
    max-width: min(550px, 45vw);
    margin-bottom: 2.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--transition-smooth) 0.3s forwards;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--color-accent);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 50px;
    transition: all 0.3s var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--transition-smooth) 0.45s forwards;
}

.cta-button:hover {
    transform: translateY(-2px);
    background: var(--color-accent-dark);
    box-shadow: 0 10px 30px rgba(237, 255, 0, 0.4);
}

/* Sections */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

/* About Section */
.about {
    padding: 8rem 0;
    background: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

.resume-btn {
    margin-top: 0.5rem;
}

.contact-link.resume-btn:hover svg {
    transform: translateY(3px);
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-block h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.detail-block ul {
    list-style: none;
}

.detail-block li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
}

/* Principles Section */
.principles {
    padding: 8rem 0;
    background: var(--color-bg);
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.principle-card {
    padding: 2.5rem;
    background: var(--color-bg-alt);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.4s var(--transition-smooth);
    position: relative;
}

.principle-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(237, 255, 0, 0.2);
}


.principle-number {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-text);
    background: var(--color-accent);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.principle-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.principle-card p {
    font-size: 0.95rem;
    line-height: 1.7;
}

@media (max-width: 1024px) {
    .principles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .principles {
        padding: 5rem 0;
    }

    .principle-card {
        padding: 1.75rem;
    }
}

/* Work Section */
.work {
    padding: 8rem 0;
    display: none;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--color-bg-alt);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.4s var(--transition-smooth), box-shadow 0.4s var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.project-image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    transition: transform 0.6s var(--transition-smooth);
}

.project-card:hover .project-placeholder {
    transform: scale(1.05);
}

.project-info {
    padding: 1.75rem;
}

.project-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.project-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
    padding: 0.35rem 0.75rem;
    background: var(--color-accent);
    border-radius: 50px;
}

/* Philosophy Section */
.philosophy {
    padding: 6rem 0;
    background: var(--color-text);
    color: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.philosophy::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    opacity: 0.15;
    border-radius: 50%;
}

.philosophy::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 10%;
    width: 100px;
    height: 100px;
    background: var(--color-accent);
    opacity: 0.1;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.philosophy blockquote {
    text-align: center;
    position: relative;
    z-index: 1;
}

.philosophy p {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--color-bg);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Contact Section */
.contact {
    padding: 8rem 0;
    text-align: center;
}

.contact-text {
    font-size: 1.1rem;
    margin: 0 auto 2.5rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s var(--transition-smooth);
}

.contact-link:hover {
    background: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
}

.contact-link svg {
    transition: transform 0.3s var(--transition-smooth);
}

.contact-link:hover svg {
    transform: translate(3px, -3px);
}

/* Footer */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    font-size: 0.875rem;
}

.footer-location {
    color: var(--color-text-muted);
}

/* Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

/* Scroll animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1180px) {
    .hero-inner {
        grid-template-columns: 520px 1fr;
    }
}

@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 460px 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

@media (max-width: 950px) {
    .hero-inner {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }

    .hero-portrait {
        width: 940px;
        height: 725px;
        margin-left: calc(50% - 470px);
        margin-top: -78px;
        margin-bottom: -180px;
        -webkit-mask-image: linear-gradient(to bottom, black 66%, transparent 99%);
        mask-image: linear-gradient(to bottom, black 66%, transparent 99%):
    }

    .hero-content {
        position: relative;
        z-index: 2;
        padding: 0 1.5rem 4rem;
    }

    .hero-subtitle {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-portrait {
        width: 100%;
        margin-left: 0;
        margin-top: -26px;
        margin-bottom: -350px;
            -webkit-mask-image: linear-gradient(to bottom, black 26%, transparent 78%);
        mask-image: linear-gradient(to bottom, black 26%, transparent 78%);
    }

    .portrait-img {
        height: 120%;
    }   
    .hero-subtitle {
        max-width: 100%;
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-alt);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--color-border);
    }

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

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:first-child {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:last-child {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .section-container {
        padding: 0 1.5rem;
    }

    .about, .work, .contact {
        padding: 5rem 0;
    }

    .philosophy {
        padding: 4rem 0;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .footer-container {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}