/* ==========================================================================
   CSS Variables & Settings
   ========================================================================== */
:root {
    /* Color Palette */
    --bg-main: #0a0a0a;
    --bg-secondary: #121212;
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f0f0f0;
    --text-secondary: #8892b0;
    --text-tertiary: #a8b2d1;
    
    --accent-primary: #64ffda;
    --accent-secondary: #bd34fe;
    --accent-gradient: linear-gradient(90deg, #64ffda 0%, #4facfe 100%);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Layout */
    --nav-height: 80px;
    --container-max: 1100px;
    --border-radius: 12px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Abstract Background Blobs */
.blob-bg {
    position: fixed;
    top: -20%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 255, 218, 0.15) 0%, rgba(10, 10, 10, 0) 70%);
    z-index: -1;
    filter: blur(80px);
    animation: drift 20s infinite alternate ease-in-out;
}

.blob-bg.blob-2 {
    top: 40%;
    left: auto;
    right: -20%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(189, 52, 254, 0.1) 0%, rgba(10, 10, 10, 0) 70%);
    animation: drift 25s infinite alternate-reverse ease-in-out;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 10%) scale(1.1); }
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 100px 0;
}

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
h1, h2, h3, h4 {
    font-weight: 600;
    color: var(--text-primary);
}

.section-title {
    font-size: 2rem;
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
}

.section-title span {
    color: var(--accent-primary);
    font-size: 1.25rem;
    font-family: monospace;
    margin-right: 1rem;
}

.section-title::after {
    content: '';
    display: block;
    height: 1px;
    width: 200px;
    background: var(--border-glass);
    margin-left: 1.5rem;
}

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

.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-sans);
}

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

.btn-primary:hover {
    background-color: rgba(100, 255, 218, 0.1);
    transform: translateY(-2px);
}

.btn-secondary {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
}

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

.btn.lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 100;
    transition: background-color var(--transition-fast), backdrop-filter var(--transition-fast), box-shadow var(--transition-fast);
}

.header.scrolled {
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

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

li:last-child .nav-link {
    color: var(--accent-primary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-primary);
    border-radius: 4px;
}

li:last-child .nav-link:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding-top: var(--nav-height);
}

.greeting {
    display: block;
    color: var(--accent-primary);
    font-family: monospace;
    margin-bottom: 20px;
    font-size: 1rem;
}

.hero-title {
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 40px;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.5;
    animation: bounce 2s infinite;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-primary);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 3px;
    height: 8px;
    background-color: var(--text-primary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

@keyframes scroll {
    0% { top: 6px; opacity: 1; }
    100% { top: 15px; opacity: 0; }
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 50px;
}

.about-text {
    color: var(--text-secondary);
}

.about-text p {
    margin-bottom: 15px;
}

.skills-container {
    margin-top: 30px;
}

.skills-container h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.skills-list li {
    position: relative;
    padding-left: 20px;
    font-size: 0.9rem;
    font-family: monospace;
}

.skills-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.about-image {
    position: relative;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.image-wrapper:hover {
    transform: translate(-5px, -5px);
    box-shadow: 10px 10px 0 var(--accent-primary);
}

.placeholder-avatar {
    font-size: 5rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.1) 0%, rgba(0,0,0,0) 100%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 0;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: rgba(100, 255, 218, 0.3);
}

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

.project-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    text-align: center;
}

.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    padding: 2rem 0;
    text-align: center;
    color: var(--text-tertiary);
    font-family: monospace;
    font-size: 0.8rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

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

.social-links a {
    padding: 0.5rem;
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
}

.social-links a:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

/* ==========================================================================
   Experience Section
   ========================================================================== */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.experience-item {
    padding: 2rem;
    transition: var(--transition-smooth);
}

.experience-item:hover {
    transform: translateX(10px);
    border-color: rgba(100, 255, 218, 0.3);
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.exp-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

.exp-date {
    font-family: monospace;
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.exp-company {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.exp-details {
    list-style-type: none;
    margin-left: 0;
}

.exp-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-tertiary);
}

.exp-details li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* ==========================================================================
   Animations & Responsive
   ========================================================================== */
/* Initial animation delays for hero */
.slide-up {
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reveal classes for intersection observer */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .exp-header {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .section-title::after {
        width: 100px;
    }
    
    .nav-links {
        display: none; /* In a real app, implement a hamburger menu */
    }
}