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

:root {
    --primary-color: #0ea5e9; /* sky blue */
    --secondary-color: #38bdf8;
    --accent-color: #ffffff;
    --dark-bg: #ffffff;
    --card-bg: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --gradient-1: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 100%);
    --gradient-2: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    --gradient-3: linear-gradient(135deg, #7dd3fc 0%, #38bdf8 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

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

.nav-brand h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0;
}

.nav-brand .tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: fadeInLeft 1s ease-out;
}

.greeting {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.hero-title {
    font-size: 3.5rem;
    margin: 0.5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-container {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin: 1rem 0;
    min-height: 60px;
}

.cursor {
    animation: blink 1s infinite;
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin: 1.5rem 0;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.btn {
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.6);
}

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

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.08);
    transition: all 0.3s;
}

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

.hero-image {
    animation: fadeInRight 1s ease-out;
}

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

.glow-effect {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.25), transparent);
    border-radius: 50%;
    animation: pulse 3s infinite;
}
.profile-circle {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    /* image container: keep it stable; ring animation is applied to .image-frame */
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.12);
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

/* Frame around the image. The decorative ring animates around (not on) the image */
.image-frame {
    position: relative;
    width: calc(100% - 40px);
    height: calc(100% - 40px);
    border-radius: 50%;
    overflow: hidden; /* clip image so the top of the photo (face) is visible */
}

.image-frame::before {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(14,165,233,0.18), rgba(56,189,248,0.12));
    filter: blur(10px);
    z-index: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
    animation: ringPulse 3s ease-in-out infinite;
}

/* Slightly grow the ring on hover */
.image-wrapper:hover .image-frame::before {
    transform: scale(1.07);
    opacity: 0.95;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center; /* show upper part (face) */
    border-radius: 50%;
    display: block;
    position: relative;
    z-index: 1;
    transform: translateY(-5%); /* subtle upward shift; tweak as needed */
}

@keyframes ringPulse {
    0% { transform: scale(1); opacity: 0.75; }
    50% { transform: scale(1.06); opacity: 0.95; }
    100% { transform: scale(1); opacity: 0.75; }
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

/* Stats Section */
.stats {
    padding: 4rem 0;
    background: rgba(26, 26, 46, 0.5);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.12);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0.5rem 0;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Expertise Section */
.expertise {
    padding: 6rem 0;
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.expertise-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.expertise-card:hover::before {
    transform: scaleX(1);
}

.expertise-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.12);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.expertise-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.expertise-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
}

.tech-list li {
    background: rgba(14, 165, 233, 0.06);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--primary-color);
    border: 1px solid rgba(14, 165, 233, 0.12);
}

/* Featured Projects */
.featured-projects {
    padding: 6rem 0;
    background: rgba(14, 165, 233, 0.03);
}

.projects-showcase {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.project-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.project-feature.reverse {
    direction: rtl;
}

.project-feature.reverse > * {
    direction: ltr;
}

.project-image {
    position: relative;
    height: 350px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-overlay {
    color: white;
    opacity: 0.3;
    transition: 0.3s;
}

.project-image:hover .project-overlay {
    opacity: 0.8;
    transform: scale(1.1);
}

.project-tag {
    display: inline-block;
    background: rgba(14, 165, 233, 0.12);
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.project-info p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech span {
    background: rgba(14, 165, 233, 0.06);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--primary-color);
    border: 1px solid rgba(14, 165, 233, 0.12);
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: 0.3s;
}

.project-link:hover {
    gap: 1rem;
}

.view-all-projects {
    text-align: center;
    margin-top: 3rem;
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.quote-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 6px 18px rgba(14, 165, 233, 0.12);
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: var(--gradient-1);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--card-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.3s;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-section ul li i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 15, 35, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

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

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

    .hero-image {
        order: -1;
    }

    .profile-circle {
        width: 250px;
        height: 250px;
    }

    .profile-circle i {
        font-size: 100px;
    }

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

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

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

    .typing-container {
        font-size: 1.3rem;
    }

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

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

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