/* Modern CSS Reset and Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --gray: #64748b;
    --gray-light: #f1f5f9;
    --white: #ffffff;
    --success: #10b981;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Header */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    transition: var(--transition);
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem;
    margin-top: 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.greeting {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.wave {
    animation: wave 2s ease-in-out infinite;
}

@keyframes wave {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(20deg);
    }

    75% {
        transform: rotate(-10deg);
    }
}

.hero-title .name {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.hero-title .role {
    display: block;
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 2rem 0;
    line-height: 1.8;
}

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

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

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

/* Code Window */
.hero-visual {
    position: relative;
}

.code-window {
    background: var(--dark);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

.window-header {
    background: var(--dark-lighter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

.window-controls {
    display: flex;
    gap: 0.5rem;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.close {
    background: #ff5f57;
}

.control.minimize {
    background: #ffbd2e;
}

.control.maximize {
    background: #28ca42;
}

.window-title {
    color: var(--white);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

.code-content {
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

.code-line {
    display: flex;
    margin-bottom: 0.5rem;
}

.line-number {
    color: var(--gray);
    margin-right: 1rem;
    width: 20px;
}

.keyword {
    color: #c792ea;
}

.class {
    color: #82aaff;
}

.method {
    color: #82aaff;
}

.type {
    color: #c3e88d;
}

.string {
    color: #c3e88d;
}

.comment {
    color: var(--gray);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    font-size: 1.5rem;
}

.floating-icon.android {
    top: 20%;
    right: -10%;
    color: #a4c639;
    animation: float-delayed 8s ease-in-out infinite;
}

.floating-icon.unity {
    bottom: 30%;
    right: 10%;
    color: #000;
    animation: float-delayed 10s ease-in-out infinite reverse;
}

.floating-icon.react {
    top: 60%;
    left: -5%;
    color: #61dafb;
    animation: float-delayed 12s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes float-delayed {

    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.scroll-line {
    width: 1px;
    height: 30px;
    background: var(--text-secondary);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {

    0%,
    100% {
        opacity: 0;
        transform: translateY(-10px);
    }

    50% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

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

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--gray-light);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
}

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

.tech-stack {
    margin-top: 2rem;
}

.tech-stack h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--white);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
}

.tech-item i {
    font-size: 1.2rem;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--white);
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* crop nicely inside the box */
}

/* Services Section */
.services {
    padding: 6rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--white);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* Portfolio Section */
.portfolio {
    padding: 6rem 0;
    background: var(--gray-light);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: none;
    background: var(--white);
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary);
    color: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    height: 350px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    position: relative;
    overflow: hidden;
}

/* The project image itself */
.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* fills box, crops if needed */
    display: block;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .project-overlay {
    opacity: 1;
}

.project-info {
    text-align: center;
    color: var(--white);
    padding: 2rem;
}

.project-info h3 {
    margin-bottom: 1rem;
    color: var(--white);
}

.project-info p {
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
}

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

.tech-tag {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

.project-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.project-link {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.project-link:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.contact-details h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0;
}

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

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: 'JetBrains Mono', monospace;
}

.footer-logo span {
    color: var(--primary);
}

.testimonials {
    padding: 8rem 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(6, 182, 212, 0.03) 100%);
    pointer-events: none;
}

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

.testimonial-card {
    background: var(--white);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    text-align: center;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.6s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.testimonial-card:hover::before {
    left: 100%;
}

.testimonial-avatar {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    position: relative;
    z-index: 5;
}

.testimonial-avatar::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.5s ease;
}

.testimonial-card:hover .testimonial-avatar::before {
    opacity: 1;
    transform: scale(1);
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary);
    transition: all 0.5s ease;
    position: relative;
    z-index: 5;
}

.testimonial-card:hover .testimonial-avatar img {
    transform: scale(1.1);
}

.testimonial-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    transition: color 0.5s ease;
}

.testimonial-card:hover .testimonial-content h4 {
    color: var(--primary);
}

.position {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
    opacity: 0.8;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
    position: relative;
}

.testimonial-text::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: -10px;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.2;
    font-family: serif;
    line-height: 1;
}

.testimonial-text::after {
    content: '"';
    position: absolute;
    bottom: -30px;
    right: -10px;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.2;
    font-family: serif;
    line-height: 1;
}

/* Animations */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

[data-aos="fade-up"].animate {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }

    .testimonials {
        padding: 6rem 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

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

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

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .testimonials {
        padding: 4rem 0;
    }

    .testimonial-card {
        padding: 2.5rem 2rem;
        border-radius: 20px;
    }

    .testimonial-avatar {
        width: 120px;
        height: 120px;
        margin-bottom: 1.5rem;
    }

    .testimonial-content h4 {
        font-size: 1.1rem;
    }

    .position {
        font-size: 0.85rem;
    }

    .testimonial-text {
        font-size: 0.95rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

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

    .nav-links li {
        margin: 1rem 0;
    }

    .hero-title .name {
        font-size: 2rem;
    }

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

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

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

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

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

    .portfolio-filters {
        flex-wrap: wrap;
    }

    .hero-title .role {
        animation: none !important;
    }

    .hero-title .role::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .testimonial-card {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }

    .testimonial-avatar {
        width: 80px;
        height: 80px;
    }

    .container {
        padding: 0 1rem;
    }

    .hero-title .role {
        animation: none !important;
    }

    .hero-title .role::after {
        display: none;
    }

    nav {
        padding: 1rem;
    }

    .hero-title .name {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
}