/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors - Dark Theme */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #8b5cf6;
    --color-accent: #ec4899;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    
    --color-bg: #0a0a0f;
    --color-bg-secondary: #13131a;
    --color-surface: #1a1a24;
    --color-surface-elevated: #232333;
    
    --color-text: #e4e4e7;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    
    --color-border: #27272a;
    --color-border-light: #3f3f46;
    
    /* Window System */
    --window-bg: rgba(26, 26, 36, 0.95);
    --window-header-bg: rgba(35, 35, 51, 0.98);
    --window-border: rgba(99, 102, 241, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Effects */
    --blur-sm: 8px;
    --blur-md: 12px;
    --blur-lg: 20px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.4);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
}

/* ===================================
   Background Effects
   =================================== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.3;
}

#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.5;
}

/* ===================================
   Desktop OS Layout
   =================================== */
.desktop-os {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

/* ===================================
   Top Bar
   =================================== */
.top-bar {
    height: 50px;
    background: rgba(26, 26, 36, 0.95);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    position: relative;
    z-index: 100;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.top-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.5rem 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-item:hover {
    color: var(--color-text);
    background: rgba(99, 102, 241, 0.1);
}

.nav-item.active {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.15);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-indicators {
    display: flex;
    gap: 1.5rem;
}

.indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.indicator i {
    width: 16px;
    height: 16px;
}

/* ===================================
   Dock/Sidebar
   =================================== */
.dock {
    position: fixed;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 90;
    background: rgba(26, 26, 36, 0.8);
    backdrop-filter: blur(var(--blur-md));
    padding: 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
}

.dock-item {
    width: 60px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.dock-item:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.dock-item i {
    width: 24px;
    height: 24px;
}

.dock-item span {
    font-size: 0.625rem;
    font-weight: 600;
}

/* ===================================
   Desktop Area
   =================================== */
.desktop-area {
    flex: 1;
    position: relative;
    overflow: hidden;
    padding: 2rem;
}

/* ===================================
   Window System
   =================================== */
.window {
    position: absolute;
    min-width: 600px;
    min-height: 400px;
    max-width: 90vw;
    max-height: 80vh;
    background: var(--window-bg);
    backdrop-filter: blur(var(--blur-lg));
    border: 1px solid var(--window-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 10;
    transition: all 0.3s ease;
}

.window.active {
    display: flex;
    z-index: 50;
}

.window.maximized {
    top: 50px !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100vh - 90px) !important;
    max-width: 100vw !important;
    max-height: calc(100vh - 90px) !important;
    border-radius: 0;
}

.window-header {
    height: 45px;
    background: var(--window-header-bg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    cursor: move;
    user-select: none;
}

.window-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
}

.window-title i {
    width: 16px;
    height: 16px;
    color: var(--color-primary);
}

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

.window-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.window-btn:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.window-btn.close:hover {
    background: #ef4444;
    border-color: #ef4444;
    color: white;
}

.window-btn i {
    width: 14px;
    height: 14px;
}

.window-content {
    flex: 1;
    overflow: hidden;
    padding: 2rem;
}

.window-content.scrollable {
    overflow-y: auto;
}

.window-content.scrollable::-webkit-scrollbar {
    width: 8px;
}

.window-content.scrollable::-webkit-scrollbar-track {
    background: var(--color-surface);
}

.window-content.scrollable::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: 4px;
}

.window-content.scrollable::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ===================================
   Hero Content (Home Window)
   =================================== */
.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    height: 100%;
    align-items: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.glitch-wrapper {
    overflow: hidden;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.glitch {
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% {
        transform: translate(0);
    }
    92% {
        transform: translate(-2px, 2px);
    }
    94% {
        transform: translate(2px, -2px);
    }
    96% {
        transform: translate(-2px, -2px);
    }
    98% {
        transform: translate(2px, 2px);
    }
}

.typing-container {
    height: 2rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 600px;
}

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

.cta-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.cta-btn.primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.cta-btn.primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}

.cta-btn.secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.cta-btn.secondary:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

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

.social-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
}

.social-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-2px) rotate(5deg);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.floating-card {
    width: 100%;
    max-width: 350px;
    padding: 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat {
    text-align: center;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
}

.stat-value::after {
    content: '+';
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

.tech-stack-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===================================
   About Section
   =================================== */
.about-section {
    max-width: 800px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.about-text strong {
    color: var(--color-primary-light);
    font-weight: 600;
}

.highlight {
    color: var(--color-primary);
    font-weight: 600;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.expertise-card {
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.expertise-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.expertise-card i {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.expertise-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.expertise-card p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   Projects Marquee
   =================================== */
.projects-marquee {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.marquee-track {
    display: flex;
    gap: 2rem;
    animation: marquee 30s linear infinite;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.project-card-large {
    min-width: 400px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card-large:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.project-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-overlay {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    backdrop-filter: blur(var(--blur-sm));
}

.project-overlay i {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.project-info {
    padding: 1.5rem;
}

.project-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.project-info p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.project-tags span {
    padding: 0.375rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-primary-light);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===================================
   Timeline (Experience)
   =================================== */
.timeline-container {
    position: relative;
    padding-left: 2rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border: 3px solid var(--color-bg);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.timeline-content {
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
    box-shadow: var(--shadow-glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.timeline-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
}

.timeline-date {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.timeline-company {
    color: var(--color-primary-light);
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-list li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.timeline-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* ===================================
   Skills Grid
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.skill-category:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.skill-category h3 i {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-item {
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.skill-item:hover {
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
    transform: scale(1.05);
}

/* ===================================
   Contact Content
   =================================== */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.contact-content > p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.contact-card i {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.contact-card h4 {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 500;
}

/* ===================================
   Terminal
   =================================== */
.terminal-content {
    background: #000;
    font-family: var(--font-mono);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.terminal-output {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.terminal-line {
    color: #0f0;
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0.25rem;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.terminal-prompt {
    color: #0f0;
    font-size: 0.875rem;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #0f0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* ===================================
   Bottom Bar
   =================================== */
.bottom-bar {
    height: 40px;
    background: rgba(26, 26, 36, 0.95);
    backdrop-filter: blur(var(--blur-md));
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .dock {
        flex-direction: row;
        left: 50%;
        top: auto;
        bottom: 1rem;
        transform: translateX(-50%);
    }
    
    .window {
        min-width: 90vw;
    }
}

@media (max-width: 768px) {
    .top-nav {
        display: none;
    }
    
    .status-indicators {
        flex-direction: column;
        gap: 0.25rem;
        align-items: flex-end;
    }
    
    .dock-item span {
        display: none;
    }
    
    .dock-item {
        width: 50px;
        height: 50px;
    }
    
    .window {
        min-width: 95vw;
        max-width: 95vw;
    }
    
    .window-content {
        padding: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .cta-btn {
        width: 100%;
        justify-content: center;
    }
}