/* ========================================
   MODERN PORTFOLIO CSS
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #3B82F6;
    --secondary-color: #1E40AF;
    --accent-color: #60A5FA;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --warning-color: #F59E0B;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    color: var(--text-light);
    line-height: 1.8;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    text-decoration: none;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #F9FAFB 0%, #E0E7FF 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    min-height: 2rem;
}

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

.cursor {
    display: inline-block;
    width: 2px;
    background-color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image-wrapper {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    border: 8px solid white;
}

/* ========================================
   ABOUT SECTION
   ======================================== */

.about {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-image-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.about-image-card img {
    width: 100%;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.about-badge {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    display: inline-block;
    font-weight: 600;
    font-size: 0.9rem;
}

.about-text h3 {
    margin-bottom: var(--spacing-xs);
}

.about-role {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.about-bio {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.highlight-item h4 {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.highlight-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ========================================
   TABS
   ======================================== */

.tabs {
    margin-top: var(--spacing-xl);
}

.tab-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition-base);
}

.tab-btn:hover {
    background-color: var(--bg-white);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* ========================================
   SKILLS SECTION
   ======================================== */

.skills {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background-color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    cursor: pointer;
}

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

.skill-item i {
    font-size: 3rem;
}

.skill-item span {
    font-weight: 600;
    color: var(--text-dark);
    text-align: center;
}

/* ========================================
   PROJECTS SECTION
   ======================================== */

.projects {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background-color: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-light) 0%, #E0E7FF 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.project-info {
    padding: var(--spacing-lg);
}

.project-info h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.project-info p {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.project-tech span {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* ========================================
   EXPERIENCE SECTION
   ======================================== */

.experience {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.timeline-marker {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background-color: var(--primary-color);
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--bg-light);
}

.timeline-content {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-header h3 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.timeline-header h4 {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.timeline-location {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.timeline-date {
    background-color: var(--bg-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
    white-space: nowrap;
}

.timeline-description {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.timeline-description li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.timeline-description li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.timeline-skills span {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* ========================================
   CERTIFICATIONS SECTION
   ======================================== */

.certifications {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.cert-card {
    background-color: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    cursor: pointer;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.cert-image {
    height: 200px;
    overflow: hidden;
    background-color: var(--bg-light);
}

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

.cert-card:hover .cert-image img {
    transform: scale(1.05);
}

.cert-info {
    padding: var(--spacing-md);
}

.cert-info h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.cert-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.awards-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-color);
}

.awards-section h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.award-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.award-item:hover {
    background-color: white;
    box-shadow: var(--shadow-md);
}

.award-item i {
    font-size: 2rem;
    color: var(--warning-color);
    flex-shrink: 0;
}

.award-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.award-item p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ========================================
   GALLERY SECTION
   ======================================== */

.gallery {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.gallery-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.6;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: var(--transition-base);
    aspect-ratio: 4 / 3;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    color: white;
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.gallery-overlay p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-info h3 {
    margin-bottom: var(--spacing-md);
}

.contact-info>p {
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

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

.contact-item a:hover {
    text-decoration: underline;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: var(--transition-base);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-md);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-content p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 968px) {

    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-image-wrapper {
        order: -1;
        max-width: 300px;
    }

    .about-image-card {
        max-width: 300px;
        margin: 0 auto;
    }

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

    .timeline {
        padding-left: 1.5rem;
    }

    .timeline-marker {
        left: -2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-base);
    }

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

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .tab-buttons {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: var(--spacing-md);
    }

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

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

    .timeline-header {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-grid,
    .awards-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

.reveal {
    opacity: 0;
    animation: slideInUp 0.6s ease forwards;
}

/* Scroll animations */
.reveal.active {
    animation: slideInUp 0.6s ease forwards;
}

/* Loading state */
body.loading {
    overflow: hidden;
}

body.loaded {
    overflow: auto;
}