/* ===========================
   CSS VARIABLES & RESET
   =========================== */

:root {
    /* Color Palette - Bold Cyber-Tech Theme */
    --primary: #00ff88;
    --primary-dark: #00cc6f;
    --secondary: #ff006e;
    --accent: #00d4ff;
    --bg-dark: #0a0a0f;
    --bg-card: #151520;
    --bg-lighter: #1a1a2e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --border: #2a2a3e;
    
    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-headline: 'Bebas Neue', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* ===========================
   ANIMATED BACKGROUND
   =========================== */

.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 136, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(50px); }
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    top: 50%;
    right: 10%;
    animation-delay: 7s;
}

.orb-3 {
    width: 600px;
    height: 600px;
    background: var(--accent);
    bottom: 10%;
    left: 50%;
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(50px, -50px) rotate(120deg); }
    66% { transform: translate(-30px, 30px) rotate(240deg); }
}

/* ===========================
   NAVIGATION
   =========================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.logo-text {
    margin: 0 0.5rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

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

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

.nav-link:hover::before {
    width: 100%;
}

/* ===========================
   HERO SECTION
   =========================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--primary);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-headline);
    font-size: clamp(3rem, 10vw, 8rem);
    line-height: 0.9;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease both;
}

.title-line:nth-child(1) { animation-delay: 0.3s; }
.title-line:nth-child(2) { animation-delay: 0.5s; }
.title-line:nth-child(3) { animation-delay: 0.7s; }

.title-line.highlight {
    color: transparent;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    background-clip: text;
    -webkit-background-clip: text;
}

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

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    animation: fadeInUp 0.8s ease 0.9s both;
}

.typing-text {
    color: var(--primary);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 1.1s both;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 255, 136, 0.4);
}

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

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    max-width: 600px;
    animation: fadeInUp 0.8s ease 1.3s both;
}

.stat {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
}

.stat:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 136, 0.05);
}

.stat-number {
    font-family: var(--font-headline);
    font-size: 2.5rem;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===========================
   SECTION HEADERS
   =========================== */

.section-header {
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--primary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary);
    border-radius: var(--radius-sm);
}

.section-title {
    font-family: var(--font-headline);
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

/* ===========================
   ABOUT SECTION
   =========================== */

.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-lighter) 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text {
    font-family: var(--font-mono);
}

.lead-text {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.about-links {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

.about-link:hover {
    color: var(--primary);
    background: rgba(0, 255, 136, 0.05);
}

.about-link svg {
    flex-shrink: 0;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border);
    background: var(--bg-card);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

.placeholder-icon {
    margin-bottom: var(--spacing-sm);
    opacity: 0.3;
}

.placeholder-text {
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

/* ===========================
   PROJECTS SECTION
   =========================== */

.projects {
    background: var(--bg-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.1);
}

.project-card.featured {
    grid-column: span 2;
}

.project-image {
    position: relative;
    height: 250px;
    background: linear-gradient(135deg, var(--bg-lighter), var(--bg-card));
    overflow: hidden;
}

.project-card.featured .project-image {
    height: 350px;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 212, 255, 0.1));
}

.project-tag {
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--primary);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary);
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.project-description {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.tech-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
}

.project-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.project-link:hover {
    gap: 0.75rem;
}

/* ===========================
   SKILLS SECTION
   =========================== */

.skills {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-lighter) 100%);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 136, 0.02);
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.category-icon {
    font-size: 1.5rem;
}

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

.skill-item {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.skill-item:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
}

/* ===========================
   EXPERIENCE/TIMELINE SECTION
   =========================== */

.experience {
    background: var(--bg-dark);
}

.timeline {
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.timeline-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -35px;
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border: 3px solid var(--bg-dark);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
}

.timeline-content:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 136, 0.02);
}

.timeline-period {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-org {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===========================
   CONTACT SECTION
   =========================== */

.contact {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-lighter) 100%);
}

.contact-content {
    max-width: 800px;
}

.contact-heading {
    font-family: var(--font-headline);
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.contact-description {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition-normal);
}

.contact-method:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 136, 0.05);
}

.method-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.1);
    border-radius: var(--radius-sm);
    color: var(--primary);
    flex-shrink: 0;
}

.method-details {
    flex: 1;
}

.method-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.method-value {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: var(--transition-normal);
    text-decoration: none;
}

.social-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 255, 136, 0.1);
    transform: translateY(-3px);
}

/* ===========================
   FOOTER
   =========================== */

.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: var(--spacing-md) 0;
}

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

.footer-text p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary);
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        font-size: 0.85rem;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 5rem);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-marker {
        left: -25px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.2rem;
    }
    
    .nav-links {
        gap: 0.5rem;
    }
    
    .nav-link {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
}

/* ===========================
   UTILITY CLASSES
   =========================== */

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.glow {
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.3);
}

/* ===========================
   SCROLL ANIMATIONS
   =========================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 1s ease;
}