/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    --primary-color: #d3c4b4;
    --secondary-color: #000000;
    --accent-color: #8b7355;
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --text-gray: #6b6b6b;
    --bg-light: #fafafa;
    --bg-white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Inter', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--bg-white);
}

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

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

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 120px 0;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    background: linear-gradient(135deg, #fafafa 0%, #f0ebe6 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-dark);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--accent-color);
    margin-bottom: 10px;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 20px;
    font-style: italic;
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    animation: fadeInUp 0.8s ease-out 0.5s backwards;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--text-dark);
    border: 2px solid var(--text-dark);
}

.btn-secondary:hover {
    background: var(--text-dark);
    color: var(--text-light);
    transform: translateY(-2px);
}

.hero-image {
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 3/4;
}

.image-wrapper::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: -1;
}

.main-portrait {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-gray);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    width: 2px;
    height: 40px;
    background: var(--text-gray);
    border-radius: 2px;
}

.scroll-indicator p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text .lead {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.expertise,
.education {
    margin-top: 50px;
}

.expertise h3,
.education h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    padding: 8px 20px;
    background: var(--primary-color);
    color: var(--text-dark);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
}

.education-item {
    margin-bottom: 25px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.education-item h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.education-item p {
    color: var(--text-gray);
    margin: 0;
}

.about-images .image-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.grid-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.grid-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio {
    background: var(--bg-light);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.95rem;
    background: var(--bg-white);
    color: var(--text-dark);
    transition: var(--transition);
    border: 2px solid transparent;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--secondary-color);
    color: var(--text-light);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    transition: var(--transition);
    opacity: 1;
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-overlay h3 {
    color: var(--text-light);
    font-family: var(--font-primary);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    color: var(--primary-color);
    font-size: 1rem;
}

/* ===================================
   Exhibits Section
   =================================== */
.exhibits {
    background: var(--bg-white);
}

.exhibits-content {
    max-width: 900px;
    margin: 0 auto;
}

.exhibits-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 40px;
}

.quote {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    line-height: 1.8;
    font-style: italic;
    color: var(--text-dark);
    padding: 40px;
    background: var(--bg-light);
    border-left: 5px solid var(--primary-color);
    margin: 60px 0;
    border-radius: 8px;
}

.partners {
    margin: 60px 0;
}

.partners h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 30px;
}

.partners-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.partner-item {
    padding: 20px;
    background: var(--bg-white);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

.partner-item:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.exhibits-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 60px;
}

.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    background: linear-gradient(135deg, var(--bg-light) 0%, #e8dfd6 100%);
}

.projects-intro {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
}

.projects-content > p {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 60px;
    font-size: 1.1rem;
}

.project-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.project-card {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.project-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.project-card h3 {
    font-family: var(--font-primary);
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.project-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

.projects-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: var(--bg-white);
    padding: 120px 0 80px;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 30px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 40px;
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.contact-item a {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 1.1rem;
}

.contact-item a:hover {
    color: var(--text-dark);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
    font-weight: 500;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateX(10px);
}

.social-link svg {
    flex-shrink: 0;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--secondary-color);
    color: var(--text-light);
    padding: 40px 0;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-to-top {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.back-to-top:hover {
    color: var(--text-light);
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-content {
        gap: 60px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .about-content {
        gap: 60px;
    }

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

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

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px;
        gap: 30px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translateY(10px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(-10px);
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-header {
        margin-bottom: 50px;
    }

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

    .project-highlights {
        grid-template-columns: 1fr;
    }

    .footer .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

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

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .quote {
        font-size: 1.1rem;
        padding: 25px;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }
}