:root {
    --bg-color: #0c0c0c;
    --bg-alt: #161616;
    --text-primary: #ffffff;
    --text-secondary: #d4d4d4;
    --accent: #e0e0e0;
    --border-color: #2a2a2a;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Playfair Display', serif;
    --section-padding: 8rem 2rem;
}

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

html {
    scroll-behavior: smooth;
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
}

body {
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: -0.02em;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: transparent;
    backdrop-filter: none;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
}

.navbar-hidden {
    transform: translateY(-100%);
}

.navbar-scrolled {
    background: rgba(12, 12, 12, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: padding 0.3s ease;
}

.navbar-scrolled .nav-content {
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.2rem;
    letter-spacing: 0.2rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 6rem;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    letter-spacing: 0.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 5rem;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 2rem;
}

.btn {
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    transition: all 0.3s ease;
    border: 1px solid var(--accent);
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    font-weight: 600;
}

.btn-primary:hover {
    background: #e5e5e5;
    border-color: #e5e5e5;
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
}

.photo-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-alt);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: -1;
    transition: transform 0.5s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.photo-layer-1 {
    transform: rotate(-6deg) translateX(-10px) translateY(5px);
}

.photo-layer-2 {
    transform: rotate(4deg) translateX(12px) translateY(-8px);
}

.hero-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    filter: grayscale(1);
    transition: filter 0.5s ease, transform 0.5s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.hero-image-container:hover .photo-layer-1 {
    transform: rotate(-10deg) translateX(-20px) translateY(10px);
}

.hero-image-container:hover .photo-layer-2 {
    transform: rotate(8deg) translateX(25px) translateY(-15px);
}

.hero-image:hover {
    filter: grayscale(0.2);
    transform: scale(1.02);
}

/* Sections General */
.section {
    padding: var(--section-padding);
}

.bg-alt {
    background-color: var(--bg-alt);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.about-text p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.skill-category {
    margin-bottom: 2.5rem;
}

.skill-category h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-main);
}

.skill-category p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Experience & Education */
.experience-item,
.education-item {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.exp-header,
.edu-header {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: 2rem;
    align-items: center;
}

.exp-logo,
.edu-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: grayscale(1) invert(1);
}

.exp-info h3,
.edu-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.3rem;
}

.exp-company,
.edu-uni {
    color: var(--text-secondary);
    font-size: 1rem;
}

.edu-meta {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.exp-date,
.edu-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Projects */
.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.project-card {
    text-decoration: none;
    color: inherit;
}

.project-img-wrapper {
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.project-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    filter: grayscale(1);
    transition: transform 0.6s ease, filter 0.6s ease;
}

.project-card:hover .project-img {
    transform: scale(1.05);
    filter: grayscale(0);
}

.img-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background: #222;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #444;
    text-transform: uppercase;
    letter-spacing: 0.2rem;
}

.project-content h3 {
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

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

.project-link {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    text-decoration: none;
    color: var(--text-primary);
}

/* Achievements Page Styles */
.achievements-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-alt) 100%);
    text-align: center;
}

.achievements-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.achievement-detailed-card {
    background: var(--bg-alt);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.achievement-detailed-card:hover {
    transform: translateY(-5px);
}

.achievement-header {
    margin-bottom: 30px;
}

.achievement-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-family: var(--font-heading);
}

.achievement-meta {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.achievement-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.achievement-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 300px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: background 0.3s ease;
}

.gallery-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.gallery-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(1);
    transition: filter 0.5s ease, transform 0.5s ease;
}

.gallery-item:hover img {
    filter: grayscale(0);
    transform: scale(1.05);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 40px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    font-size: 0.9rem;
}

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

/* Contact Section */
.contact-container {
    max-width: 1000px;
    text-align: center;
}

.back-link-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
    text-align: left;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-icon-wrapper {
    width: 60px;
    height: 60px;
    background: #fff;
    /* White background for the icon tile since many are JPGs */
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: transform 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}

.contact-icon {
    width: 35px;
    height: 35px;
    object-fit: contain;
}

.contact-method:hover .contact-icon-wrapper {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.method-details h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.2rem;
    font-family: var(--font-main);
}

.method-details a {
    font-size: 1.3rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
}

.method-details a:hover {
    color: var(--accent);
}

.social-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.social-tag {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 8px;
}

.social-tag img {
    width: 24px;
    height: 24px;
    object-fit: contain;
    background: white;
    padding: 2px;
    border-radius: 4px;
}

.social-tag span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    transition: color 0.3s ease;
}

.social-tag:hover {
    background: #1f1f1f;
    border-color: var(--accent);
    transform: translateY(-3px);
}

.social-tag:hover span {
    color: var(--text-primary);
}

/* Footer */
.footer {
    padding: 4rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1rem;
}

/* Animations */
.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}

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

.reveal-img {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 1.2s ease, transform 1.2s ease;
}

.reveal-img.active {
    opacity: 1;
    transform: scale(1);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-text h1 {
        font-size: 4rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 2;
    }

    .hero-image-container {
        order: 1;
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

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

@media (max-width: 768px) {
    .section-title {
        font-size: 2.2rem;
    }

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

    .social-links-grid {
        grid-template-columns: 1fr;
    }

    .method-details a {
        font-size: 1.1rem;
    }

    .nav-links {
        display: none;
    }

    .exp-header,
    .edu-header {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }

    .exp-logo,
    .edu-logo {
        margin: 0 auto;
    }

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

/* Certifications Section */
.cert-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.cert-item {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.cert-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
}

.cert-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-main);
    font-weight: 600;
    line-height: 1.4;
}

.cert-issuer {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.cert-date {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.cert-link {
    margin-top: auto;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05rem;
    text-decoration: none;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.cert-link::after {
    content: '→';
    transition: transform 0.3s ease;
}

.cert-link:hover::after {
    transform: translateX(5px);
}

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

.cert-btn {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1rem 2rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 12px;
}

.cert-btn img {
    height: 35px;
    width: auto;
    filter: brightness(0.9);
}

.cert-btn span {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
    letter-spacing: 0.05rem;
}

.cert-btn:hover {
    background: #1f1f1f;
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

@media (max-width: 768px) {
    .cert-list {
        grid-template-columns: 1fr;
    }

    .cert-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}