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

:root {
    --black: #f5f5f5;
    --white: #0a0a0a;
    --gray: #666;
    --gold: #1a1a1a;
    --gold-light: #333;
    --border: #e0e0e0;
    --bg: #ffffff;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--white) var(--black);
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--white);
    overflow-x: hidden;
    cursor: none;
}

::selection {
    background: var(--white);
    color: var(--black);
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===== Loader ===== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s, visibility 0.8s;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loader-line {
    width: 60px;
    height: 1px;
    background: var(--white);
    margin: 0 auto 1.5rem;
    animation: loaderLine 1.5s ease-in-out infinite;
}

@keyframes loaderLine {
    0%, 100% { transform: scaleX(1); opacity: 1; }
    50% { transform: scaleX(2); opacity: 0.5; }
}

.loader-text {
    font-size: 0.7rem;
    letter-spacing: 0.5em;
    color: var(--gray);
}

/* ===== Custom Cursor ===== */
.cursor {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.15s, opacity 0.15s;
    mix-blend-mode: difference;
}

.cursor-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 1px solid var(--white);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9997;
    transition: transform 0.3s, width 0.3s, height 0.3s, opacity 0.3s;
    opacity: 0.5;
}

.cursor.active {
    transform: scale(2);
}

.cursor-follower.active {
    width: 60px;
    height: 60px;
    opacity: 0.3;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    mix-blend-mode: difference;
}

.nav-logo {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    transition: opacity 0.3s;
}

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

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 0.3rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--white);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.nav-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: none;
    padding: 0.5rem;
}

.nav-menu-btn span {
    width: 24px;
    height: 1px;
    background: var(--white);
    transition: transform 0.3s, opacity 0.3s;
}

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

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

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s, visibility 0.5s;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.mobile-menu-links a {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    transition: color 0.3s;
}

.mobile-menu-links a:hover,
.mobile-menu-links a.active {
    color: var(--gray);
}

/* ===== Hero Section ===== */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.03) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* ===== Hero Background Letters ===== */
.hero-bg-letters {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.hero-bg-letter {
    position: absolute;
    font-family: 'Playfair Display', serif;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.04);
    user-select: none;
    pointer-events: none;
    will-change: transform;
    animation: floatLetter linear infinite;
}

@keyframes floatLetter {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.hero-title-line {
    display: inline-block;
    transform: translateY(120%);
    animation: slideUp 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    animation-delay: 0.8s;
}

@keyframes slideUp {
    to { transform: translateY(0); }
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gray);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1.5s;
}

.hero-subtitle {
    font-size: clamp(0.85rem, 1.5vw, 1rem);
    color: var(--gray);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1.8s;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.hero-scroll {
    position: absolute;
    bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 2.2s;
}

.hero-scroll span {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    color: var(--gray);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--white), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== Sections ===== */
.section {
    padding: 8rem 0;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

.section-header {
    margin-bottom: 5rem;
}

.section-number {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--gray);
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.2;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--gray);
}

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

.stat {
    text-align: center;
    padding: 2rem 1rem;
    border: 1px solid var(--border);
    transition: border-color 0.5s;
}

.stat:hover {
    border-color: var(--white);
}

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    color: var(--white);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray);
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skill-card {
    padding: 2.5rem;
    border: 1px solid var(--border);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.02) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.5s;
}

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

.skill-card:hover::before {
    opacity: 1;
}

.skill-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    position: relative;
}

.skill-card ul {
    list-style: none;
    position: relative;
}

.skill-card li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--gray);
    transition: color 0.3s;
}

.skill-card li:last-child {
    border-bottom: none;
}

.skill-card:hover li {
    color: var(--white);
}

/* ===== Projects Section ===== */
.projects-list {
    display: flex;
    flex-direction: column;
}

.project-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
    transition: opacity 0.5s;
    cursor: none;
}

.project-item:first-child {
    border-top: 1px solid var(--border);
}

.project-item:hover {
    opacity: 0.9;
}

.project-number {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--gray);
    margin-bottom: 1rem;
}

.project-name {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    margin-bottom: 1rem;
    transition: color 0.3s;
}

.project-item:hover .project-name {
    color: var(--gray);
}

.project-desc {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-tech span {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    padding: 0.4rem 1rem;
    border: 1px solid var(--border);
    color: var(--gray);
}

.project-visual {
    background: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    position: relative;
    overflow: hidden;
}

.project-visual::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.02) 0%, transparent 100%);
}

.project-visual-text {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    color: var(--gray);
    opacity: 0.3;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ===== Contact Section ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.contact-email {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    display: inline-block;
    position: relative;
    padding-bottom: 0.5rem;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--white);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.contact-email:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.contact-social {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.social-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s;
    cursor: none;
}

.social-link:hover {
    border-color: var(--gold);
}

.social-link span:first-child {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray);
    transition: color 0.3s;
}

.social-link:hover span:first-child {
    color: var(--white);
}

.social-link span:last-child {
    font-size: 1.2rem;
    color: var(--gray);
    transition: transform 0.3s;
}

.social-link:hover span:last-child {
    transform: translateX(5px);
}

/* ===== Footer ===== */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--gray);
}

/* ===== Animations ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

[data-animate="text"] {
    transform: translateY(60px);
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .project-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 1.5rem 2rem;
    }

    .nav-links {
        display: none;
    }

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

    .container {
        padding: 0 2rem;
    }

    .section {
        padding: 5rem 0;
    }

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

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .hero-title {
        font-size: clamp(2.5rem, 12vw, 5rem);
    }

    /* Hide custom cursor on mobile */
    .cursor,
    .cursor-follower {
        display: none;
    }

    body {
        cursor: auto;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

    .project-tech {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}