/* ================================
   CSS Variables & Reset
================================ */
:root {
    --bg-primary: #0f1419;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --text-primary: #ffffff;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-blue: #6366f1;
    --accent-purple: #8b5cf6;
    --accent-pink: #a855f7;
    --gradient-start: #6366f1;
    --gradient-mid: #8b5cf6;
    --gradient-end: #a855f7;
    --border-color: rgba(139, 148, 158, 0.2);
    --card-bg: rgba(22, 27, 34, 0.8);
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ================================
   Typography
================================ */
.text-gradient {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

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

/* ================================
   Buttons
================================ */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
    border: none;
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn-secondary-custom {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary-custom:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    transform: translateY(-2px);
}

/* ================================
   Navigation
================================ */
.navbar {
    padding: 1rem 0;
    background: transparent;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--text-primary) !important;
}

/* ================================
   Hero Section
================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #151922 50%, #1a1f2e 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 20% 80%, rgba(99, 102, 241, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.badge-available {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.4);
    border-radius: 50px;
    color: var(--accent-blue);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

.status-dot-green {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: blink 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-social {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--accent-blue);
    transform: translateY(-3px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-muted);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* ================================
   Services Section
================================ */
.services-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-tags li {
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-blue);
}

/* ================================
   About Section
================================ */
.about-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.about-image {
    position: relative;
    padding: 2rem;
}

.image-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-avatar {
    font-size: 8rem;
    color: var(--text-muted);
}

.experience-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
    padding: 1.5rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.experience-badge .number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.3;
}

.about-content {
    padding-left: 2rem;
}

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

.stats-row {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ================================
   Tech Stack Section
================================ */
.tech-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.tech-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem 1rem;
    text-align: center;
    transition: all 0.3s ease;
    justify-content: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.tech-item:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.5);
}

.tech-item i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
    display: block;
}

.tech-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ================================
   Portfolio Section
================================ */
.portfolio-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.portfolio-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    height: 100%;
    transition: all 0.3s ease;
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.portfolio-image {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    overflow: hidden;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-placeholder i {
    font-size: 4rem;
    color: var(--text-muted);
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-category {
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    display: block;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.portfolio-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.portfolio-tags span {
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-blue);
}

/* ================================
   Testimonials Section
================================ */
.testimonials-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    height: 100%;
}

.testimonial-card .stars {
    color: #fbbf24;
    margin-bottom: 1rem;
}

.testimonial-card .stars i {
    margin-right: 4px;
}

.testimonial-card p {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.author-info strong {
    display: block;
    font-weight: 600;
    margin-bottom: 2px;
}

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

/* ================================
   Process Section
================================ */
.process-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.process-item {
    position: relative;
    padding: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.process-item:hover {
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-3px);
}

.process-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
    line-height: 1;
    margin-bottom: 1rem;
}

.process-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.process-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* ================================
   Contact Section
================================ */
.contact-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contact-info {
    padding-right: 2rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.method-icon {
    width: 50px;
    height: 50px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-icon i {
    font-size: 1.25rem;
    color: var(--accent-blue);
}

.method-details span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

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

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

.contact-form-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.form-control {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: var(--bg-primary);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--text-muted);
}

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

select.form-control {
    cursor: pointer;
}

/* ================================
   Footer
================================ */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--accent-blue);
    color: white;
    transform: translateY(-3px);
}

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

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.tech-logo {
    width: 32px;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%) brightness(80%);
    transition: filter 0.3s ease;
}

.tech-item:hover .tech-logo {
    filter: none;
}

.dev-photo {
    width: 300px;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
}

/* ================================
   Responsive Design
================================ */
@media (max-width: 991px) {

    .about-content {
        padding-left: 0;
        padding-top: 2rem;
    }
    
    .contact-info {
        padding-right: 0;
        margin-bottom: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .dev-photo {
        width: 200px;
    }

    .hero-section {
        padding-top: 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .stats-row {
        justify-content: center;
    }
    
    .stat-item {
        flex: 0 0 auto;
    }
}

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

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