/* ===== CSS Variables ===== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #f59e0b;
    --background: #0f172a;
    --background-light: #1e293b;
    --surface: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #64748b;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-lg: 24px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--gradient);
    padding: 10px 20px;
    border-radius: var(--radius);
    color: var(--white) !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 100px 24px 60px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-shapes {
    position: absolute;
    inset: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -200px;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    left: -100px;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.3;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-size: 1.125rem;
    color: var(--primary-light);
    margin-bottom: 8px;
    font-weight: 500;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-tagline {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    color: var(--text-muted);
    margin-bottom: 20px;
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

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

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

.btn-full {
    width: 100%;
}

.hero-social {
    display: flex;
    gap: 16px;
}

.hero-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--background-light);
    color: var(--text-muted);
    transition: var(--transition);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    overflow: hidden;
}

.hero-profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.3);
    border: 4px solid rgba(99, 102, 241, 0.3);
}

.hero-badge {
    position: absolute;
    bottom: 20px;
    right: 0;
    background: var(--background-light);
    padding: 10px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
}

.badge-icon {
    color: #22c55e;
    display: flex;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll a {
    color: var(--text-muted);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ===== Section Styling ===== */
section {
    padding: 100px 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.about-intro {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.about-services h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.service-card {
    background: var(--background);
    padding: 24px;
    border-radius: var(--radius);
    transition: var(--transition);
}

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

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-bottom: 16px;
}

.service-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== Experience Section ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient);
}

.timeline-item {
    position: relative;
    padding-left: 40px;
    padding-bottom: 40px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -6px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid var(--background);
}

.timeline-content {
    background: var(--background-light);
    padding: 24px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateX(5px);
}

.timeline-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.timeline-header h3 {
    font-size: 1.25rem;
}

.timeline-company {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-light);
    margin-bottom: 4px;
}

.timeline-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.timeline-description {
    color: var(--text-muted);
}

/* ===== Skills Section ===== */
.skills {
    background: var(--background-light);
}

.skills-content {
    display: grid;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.skills-category h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--primary-light);
}

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

.skill-tag {
    background: var(--background);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.95rem;
    border: 1px solid var(--surface);
    transition: var(--transition);
}

.skill-tag:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* ===== Certifications Section ===== */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.certification-card {
    background: var(--background-light);
    padding: 24px;
    border-radius: var(--radius);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}

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

.certification-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.certification-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.certification-issuer {
    font-size: 0.9rem;
    color: var(--primary-light);
    margin-bottom: 4px;
}

.certification-date,
.certification-id {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.certifications-note {
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
}

/* ===== Education Section ===== */
.education {
    background: var(--background-light);
}

.education-card {
    max-width: 500px;
    margin: 0 auto;
    background: var(--background);
    padding: 32px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 24px;
}

.education-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.education-info h4 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.education-degree {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ===== Testimonials Section ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--background-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--white);
}

.author-info h5 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.author-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--background-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-text p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.contact-info {
    margin-top: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-muted);
}

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

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

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

.contact-form {
    background: var(--background);
    padding: 32px;
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--surface);
    border-radius: var(--radius);
    background: var(--background-light);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

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

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

/* ===== Footer ===== */
.footer {
    background: var(--background);
    padding: 40px 0;
    border-top: 1px solid var(--surface);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-content p {
    color: var(--text-muted);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--primary);
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

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

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

    .hero-image {
        order: -1;
    }

    .hero-image-wrapper {
        width: 280px;
        height: 280px;
    }


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

    .about-stats {
        justify-content: center;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--background);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

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

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

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

@media (max-width: 480px) {
    .hero {
        padding: 80px 16px 40px;
    }

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

    .about-stats {
        flex-direction: column;
        gap: 24px;
    }

    .timeline::before {
        left: -1px;
    }

    .timeline-item {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -7px;
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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