:root {
    --primary: #1a1a1a;
    --primary-rgb: 26, 26, 26;
    --accent: #c5a880;
    --accent-light: #dec097;
    --dark: #080808;
    --dark-secondary: #101010;
    --dark-tertiary: #1b1b1b;
    --light: #fafafa;
    --light-secondary: #f0f0f0;
    --gray: #a5a5a5;
    --text: #ffffff;
    --text-muted: #dcdcdc;
    --border: rgba(255, 255, 255, 0.15);
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] {
    --primary: #1a1a1a;
    --primary-rgb: 245, 245, 243;
    --accent: #6f593b;
    --accent-light: #8e734e;
    --dark: #f5f5f3;
    --dark-secondary: #ffffff;
    --dark-tertiary: #ebebeb;
    --light: #0d0d0d;
    --gray: #4a4a4a;
    --text: #111111;
    --text-muted: #2d2d2d;
    --border: rgba(0, 0, 0, 0.18);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    background: var(--dark);
    color: var(--text);
    line-height: 1.8;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 400;
    line-height: 1.3;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

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

.site-logo {
    height: 60px;
    width: auto;
    object-fit: contain;
    display: block;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    align-items: center;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(13, 13, 13, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1rem 5%;
    box-shadow: 0 1px 0 var(--border);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
}

.nav-logo {
    z-index: 1001;
}

.theme-toggle {
    position: absolute;
    right: 5%;
    top: 1.5rem;
    z-index: 1001;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

[data-theme="light"] .sun-icon {
    display: block;
}

[data-theme="light"] .moon-icon {
    display: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0 auto;
}

.nav-links a {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: var(--transition);
}

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

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

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    list-style: none;
    padding: 0.5rem 0;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-radius: 4px;
    box-shadow: var(--shadow);
    z-index: 100;
}

.dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 15px;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
    text-align: center;
}

.dropdown-menu a::after {
    display: none;
}

.dropdown-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
}

[data-theme="light"] .dropdown-menu {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .dropdown-menu a:hover {
    background: rgba(0, 0, 0, 0.05);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 1px;
    background: var(--text);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 5%;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-bg video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(var(--primary-rgb), 0.55);
    z-index: 1;
}

[data-theme="light"] .hero-bg::before {
    background: rgba(var(--primary-rgb), 0.65);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(to bottom, rgba(var(--primary-rgb), 0.35), transparent);
    pointer-events: none;
    z-index: 2;
}


.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    width: 100%;
    max-width: 1000px;
}

.hero-tagline {
    font-size: 0.9rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-name {
    font-size: clamp(2.5rem, 8vw, 6rem);
    font-weight: 300;
    color: var(--text);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeUp 1s ease 0.3s forwards;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text);
    margin-bottom: 2rem;
    font-weight: 600;
    opacity: 0;
    animation: fadeUp 1s ease 0.5s forwards;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text);
    max-width: 500px;
    margin: 0 auto 3rem;
    opacity: 0;
    animation: fadeUp 1s ease 0.7s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 1s ease 0.9s forwards;
}

.btn {
    padding: 0.9rem 2rem;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: var(--dark);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeUp 1s ease 1.2s forwards;
}

.mouse {
    width: 22px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 6px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }

    50% {
        opacity: 0;
        top: 18px;
    }

    100% {
        opacity: 1;
        top: 8px;
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.65rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.about {
    padding: 8rem 0;
    background: var(--dark-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    filter: grayscale(15%);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.about-image img:hover {
    filter: grayscale(0%);
}

.about-lead {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.about-main p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

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

.sidebar-card {
    background: var(--dark-tertiary);
    padding: 1.8rem;
    border-radius: 4px;
}

.sidebar-card h4 {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.education-item {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.2rem;
}

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

.degree {
    font-size: 0.95rem;
    color: var(--text);
}

.school {
    font-size: 0.85rem;
    color: var(--gray);
}

.year {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.values-list {
    list-style: none;
}

.values-list li {
    font-size: 0.9rem;
    color: var(--text);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.values-list li:last-child {
    border-bottom: none;
}

.portfolio {
    padding: 8rem 0;
    background: var(--dark);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background: none;
    border: none;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem 1rem;
    position: relative;
    transition: var(--transition);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

.filter-btn.active::after {
    width: 100%;
}

.carousel-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    padding: 0 0.5rem;
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 0;
    background: var(--dark-secondary);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.project-image {
    position: relative;
    min-height: 400px;
    background: linear-gradient(135deg, var(--dark-tertiary) 0%, var(--dark) 100%);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(var(--primary-rgb), 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.view-project {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #fff;
    padding: 0.8rem 1.5rem;
    border: 1px solid #fff;
}

.p1 {
    background: url("UEL Term-1 Work/cover.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.p2 {
    background: url("UEL Term-2 Work/cover.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.p3 {
    background: url("Interior Technical Drawings/cover.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.p4 {
    background: url("Architectural Drawings/cover.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.p5 {
    background: url("Design/cover.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: top;
}

.project-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-type {
    font-size: 0.65rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.8rem;
}

.project-content h3 {
    font-size: 1.6rem;
    color: var(--text);
    margin-bottom: 1rem;
}

.project-content p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.project-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.carousel-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.carousel-btn {
    position: absolute;
    top: 200px;
    transform: translateY(-50%);
    z-index: 10;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(13, 13, 13, 0.5);
    backdrop-filter: blur(4px);
    color: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.carousel-btn.prev {
    left: 20px;
}

.carousel-btn.next {
    right: 20px;
}

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

.carousel-dots {
    display: flex;
    gap: 0.6rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.carousel-counter {
    position: absolute;
    bottom: 0;
    right: 0;
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.carousel-counter .current {
    color: var(--accent);
}

.experience {
    padding: 8rem 0;
    background: var(--dark-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.skill-category h3 {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.skill-item {
    margin-bottom: 1.2rem;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.skill-header span:first-child {
    color: var(--text);
}

.skill-header span:last-child {
    color: var(--text-muted);
}

.skill-bar {
    height: 2px;
    background: var(--border);
    border-radius: 1px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--accent);
    width: 0;
    transition: width 1.2s ease-out;
    border-radius: 1px;
}

.certifications {
    border-top: 1px solid var(--border);
    padding-top: 3rem;
    text-align: center;
}

.certifications h3 {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 2rem;
    font-weight: 500;
}

.cert-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--text);
}

.cert-icon {
    color: var(--accent);
    font-size: 0.6rem;
}

.contact {
    padding: 8rem 0;
    background: var(--dark);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
}

.contact-info p {
    color: var(--gray);
    margin: 1.5rem 0 2rem;
    font-size: 0.95rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--text);
}

.contact-item svg {
    color: var(--accent);
}

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

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.social-link {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    font-size: 0.7rem;
    letter-spacing: 1px;
    font-weight: 500;
}

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

.contact-form {
    background: var(--dark-secondary);
    padding: 2.5rem;
    border-radius: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.9rem 0;
    font-size: 0.9rem;
    color: var(--text);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

.form-group select {
    cursor: pointer;
    appearance: none;
}

.form-group select option {
    background: var(--dark-secondary);
    color: var(--text);
}

.form-group label {
    position: absolute;
    left: 0;
    top: 0.9rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
}

.form-group .form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: var(--transition);
}

.form-group input:focus~label,
.form-group textarea:focus~label,
.form-group select:focus~label,
.form-group input:not(:placeholder-shown)~label,
.form-group textarea:not(:placeholder-shown)~label,
.form-group select:valid~label,
.form-group.focus label {
    top: -0.6rem;
    font-size: 0.65rem;
    color: var(--accent);
}

.form-group.focus .form-line {
    width: 100%;
}

.form-group textarea {
    resize: none;
}

.btn-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 0.5rem;
}

.btn-submit.success {
    background: #5a8a6a;
}

.footer {
    padding: 4rem 0;
    background: var(--dark-secondary);
}

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

.footer-logo {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.site-logo.light-img {
    display: none;
}

.site-logo.dark-img {
    display: block;
}

[data-theme="dark"] .site-logo.light-img {
    display: block;
}

[data-theme="dark"] .site-logo.dark-img {
    display: none;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-links a {
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--text-muted);
}

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

.copyright {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        height: 100vh;
        background: var(--dark-secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

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

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .about-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .about-sidebar>* {
        flex: 1;
        min-width: 250px;
    }

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

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

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

    .project-image {
        min-height: 250px;
    }

    .carousel-btn {
        top: 125px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .hero-name {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .portfolio-filters {
        flex-wrap: wrap;
        gap: 0.8rem;
    }

    .cert-grid {
        flex-direction: column;
        align-items: center;
    }
}