/* ==========================================================================
   CSS Variables & Tokens
   ========================================================================== */
   :root {
    /* Color Palette */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    /* Vibrant Accents */
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    
    /* Glassmorphism */
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 30px 30px;
    background-position: center center;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

a {
    text-decoration: none;
    color: var(--text-primary);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-padding {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* ==========================================================================
   Background Decorations
   ========================================================================== */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

.blob-1 {
    top: 10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
}

.blob-2 {
    top: 40%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    animation-delay: -5s;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.glass-nav nav {
    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);
}

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

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

.glass-nav a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.glass-nav a:hover {
    color: var(--accent-blue);
}

.nav-btn {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--accent-blue);
    padding: 0.5rem 1.25rem;
    border-radius: 30px;
    color: var(--accent-blue) !important;
}

.nav-btn:hover {
    background: var(--accent-blue);
    color: white !important;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-medium);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

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

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.25rem;
}
.btn-outline:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.2);
}

/* ==========================================================================
   Shared Components (Glass Cards)
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    transition: var(--transition-medium);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 20px;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02));
}

.profile-image {
    width: 100%;
    border-radius: 12px;
    display: block;
    object-fit: cover;
    aspect-ratio: 1/1;
}

.floating-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    height: 60px;
    width: 60px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 5px 20px rgba(59, 130, 246, 0.5);
    animation: float 4s infinite ease-in-out;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.skill-card {
    display: flex;
    flex-direction: column;
}

.skill-card .icon-wrapper {
    width: 50px;
    height: 50px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.skill-card ul {
    list-style: none;
}

.skill-card li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-card li i {
    color: var(--accent-cyan);
    font-size: 0.85rem;
}

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

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
    padding: 1.5rem;
}

.cert-item img {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3));
    transition: transform 0.3s;
}

.cert-item:hover img {
    transform: scale(1.1);
}

.cert-item span {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple));
    opacity: 0;
    transition: var(--transition-fast);
}

.project-card:hover::before {
    opacity: 1;
}

.project-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.project-icon {
    font-size: 1.5rem;
    color: var(--accent-purple);
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    flex-grow: 1;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 4rem 2rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin: 1.5rem 0 3rem;
    font-size: 1.1rem;
}

.social-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.social-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: var(--transition-medium);
}

.social-btn i {
    font-size: 2rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.social-btn:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.2);
}

.social-btn:hover i {
    color: var(--accent-blue);
    transform: scale(1.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    margin-top: 4rem;
    background: var(--bg-darker);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.built-with i {
    color: var(--accent-purple);
    margin: 0 0.2rem;
}

/* ==========================================================================
   Resume/Timeline Section
   ========================================================================== */
.timeline-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding: 2rem 0;
}

.timeline {
    position: relative;
}

/* Vertical glowing line */
.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple), transparent);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

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

/* Timeline Dot */
.timeline-dot {
    position: absolute;
    left: 11px;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--bg-dark);
    border: 3px solid var(--accent-blue);
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 0 10px var(--accent-blue);
    transition: var(--transition-medium);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent-blue);
    box-shadow: 0 0 20px var(--accent-blue);
    transform: scale(1.2);
}

/* Timeline Content */
.timeline-content {
    padding: 2rem;
}

.timeline-role {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-meta {
    font-family: var(--font-body);
    color: var(--accent-cyan);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 15px;
    }
    .timeline-dot {
        left: 6px;
    }
    .timeline-item {
        padding-left: 45px;
    }
}

/* ==========================================================================
   Animations & Reveal
   ========================================================================== */
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }

/* Initial load animations */
.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .glass-nav ul {
        display: none; /* simple mobile nav hide for now */
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}