/* ==========================================================================
   CSS Variables & Tokens
   ========================================================================== */
:root {
    /* Color Palette - Premium Dark Theme */
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.02);
    --bg-card-hover: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.08);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --gradient-glow: linear-gradient(135deg, rgba(59, 130, 246, 0.5), rgba(139, 92, 246, 0.5));
    --gradient-ai: linear-gradient(135deg, #f59e0b, #ef4444);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows & Effects */
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.15);
    --glass-blur: blur(12px);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for fixed navbar */
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.section-padding {
    padding: var(--section-padding);
}

.bg-alt {
    background-color: var(--bg-secondary);
}

/* Typography Utilities */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* UI Components */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition-normal);
}

.glass-panel:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
    gap: 8px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.125rem;
    border-radius: 12px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
}

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
}

.btn-outline:hover {
    border-color: white;
    color: white;
    transform: translateY(-2px);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    padding: 24px 0;
}

#navbar.scrolled {
    padding: 16px 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

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

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

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

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

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

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

/* Background aesthetic elements */
.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.greeting {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: #3b82f6;
    margin-bottom: 8px;
    font-weight: 500;
}

.title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.headline {
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.bio {
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 90%;
}

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

.cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.image-wrapper {
    position: relative;
    border-radius: 50%;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 450px;
    margin: 0 auto;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: block;
    object-fit: cover;
    object-position: center 15%; /* Focuses on the upper body/face */
    z-index: 2;
    position: relative;
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    filter: blur(40px);
    z-index: 1;
    opacity: 0.6;
    border-radius: 50%;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    padding: 40px 30px;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.service-card:nth-child(2) .service-icon {
    background: var(--gradient-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.service-card p {
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.service-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.service-list li i {
    color: #3b82f6;
    margin-top: 4px;
    font-size: 0.8rem;
}

.service-card:nth-child(2) .service-list li i {
    color: #f59e0b;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
}

.about-text .lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 40px;
    font-family: var(--font-heading);
    font-weight: 500;
}

.about-story {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.story-item h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.story-item h4 i {
    color: #3b82f6;
}

.skills-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
}

.skills-container h3 {
    margin-bottom: 24px;
    font-size: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.skill-category {
    margin-bottom: 24px;
}

.skill-category:last-child {
    margin-bottom: 0;
}

.skill-category h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tags span {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.skill-tags span:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: #3b82f6;
    color: white;
}

.skill-tags span.ai-tag:hover {
    background: rgba(245, 158, 11, 0.2);
    border-color: #f59e0b;
}

/* ==========================================================================
   Portfolio Section
   ========================================================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.portfolio-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.portfolio-img {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.2);
    transition: transform 0.5s ease;
}

.plugin-bg { background: linear-gradient(135deg, #1e293b, #0f172a); }
.ai-bg { background: linear-gradient(135deg, #4c1d95, #2e1065); }
.cloud-bg { background: linear-gradient(135deg, #0369a1, #0c4a6e); }

.portfolio-card:hover .portfolio-img img,
.portfolio-card:hover .placeholder-img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.badge {
    align-self: flex-start;
    font-size: 0.75rem;
    padding: 4px 10px;
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-radius: 12px;
    margin-bottom: 12px;
    font-weight: 600;
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* ==========================================================================
   Experience Timeline
   ========================================================================== */
.timeline-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.timeline-column h3 {
    font-size: 1.5rem;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.timeline-column h3 i {
    color: #3b82f6;
}

.timeline {
    position: relative;
    padding-left: 20px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding: 24px;
    margin-bottom: 30px;
}

.timeline-dot {
    position: absolute;
    top: 28px;
    left: -26px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #3b82f6;
    box-shadow: 0 0 10px #3b82f6;
}

.timeline-date {
    display: inline-block;
    font-size: 0.85rem;
    color: #3b82f6;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-item h4 {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.timeline-item ul {
    list-style-type: disc;
    padding-left: 16px;
}

.timeline-item ul li {
    font-size: 0.9rem;
    margin-bottom: 8px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    padding: 60px;
    max-width: 100%;
}

.availability, .timezone {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.contact-links {
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-item:hover .icon-box {
    background: var(--gradient-primary);
    transform: scale(1.1);
}

.contact-item:hover .icon-box i {
    color: white;
}

.icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.icon-box i {
    font-size: 1.25rem;
    color: #3b82f6;
    transition: var(--transition-normal);
}

.contact-item span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-item strong {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-family: var(--font-heading);
    word-break: break-all;
}

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

.social-links a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

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

.contact-action {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    border-left: 1px solid var(--border-color);
    padding-left: 60px;
}

.contact-action h3 {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.contact-action p {
    margin-bottom: 32px;
    width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
    hyphens: auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    padding: 30px 24px 80px 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    width: 100%;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.appear {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-content, .about-content, .timeline-container, .contact-card {
        grid-template-columns: 1fr;
    }
    
    .services-grid, .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-action {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: 40px;
    }
    
    .title { font-size: 3.5rem; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-normal);
        border-left: 1px solid var(--border-color);
        z-index: 999;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger { display: block; z-index: 1000; }
    
    .services-grid, .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding-top: 120px;
        text-align: center;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column-reverse;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .hero-cta .btn {
        width: 100%;
        text-align: center;
    }
    
    .title { font-size: 2.5rem; }
    .headline { font-size: 1.25rem; }
    
    .contact-card { padding: 30px; }
    .section-padding { padding: 60px 0; }
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-speed) ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(108, 92, 237, 0.4);
}