/* ============================================
   MODERN TECH PORTFOLIO - BLACK & WHITE THEME
   Alien Aesthetics • Futuristic Animations
   ============================================ */

/* CSS Variables */
:root {
    /* Monochrome Palette */
    --black: #000000;
    --gray-950: #0a0a0a;
    --gray-900: #111111;
    --gray-800: #1a1a1a;
    --gray-700: #2a2a2a;
    --gray-600: #3a3a3a;
    --gray-500: #6b6b6b;
    --gray-400: #9b9b9b;
    --gray-300: #c2c2c2;
    --gray-200: #e0e0e0;
    --gray-100: #f0f0f0;
    --white: #ffffff;
    
    /* Accent Colors */
    --accent: #ffffff;
    --accent-dim: rgba(255, 255, 255, 0.6);
    --accent-glow: rgba(255, 255, 255, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', 'Source Code Pro', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Effects */
    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;
}

/* Global Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    background: var(--black);
    color: var(--gray-200);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    position: relative;
}

/* Animated Background */
.alien-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

.alien-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    top: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation-delay: 0s;
}

.orb-2 {
    top: 60%;
    right: 15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    animation-delay: 5s;
}

.orb-3 {
    bottom: 10%;
    left: 30%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Grid Pattern Overlay */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.03;
    background-image: 
        linear-gradient(var(--white) 1px, transparent 1px),
        linear-gradient(90deg, var(--white) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--gray-300);
    line-height: 1.8;
}

a {
    color: var(--white);
    text-decoration: none;
    transition: all var(--transition-base);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid var(--gray-800);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
}

.nav-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--white);
    transition: transform var(--transition-base);
}

.nav-avatar:hover {
    transform: rotate(360deg) scale(1.1);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all var(--transition-base);
    position: relative;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: var(--white);
    opacity: 0.1;
    border-radius: 4px;
    transition: all var(--transition-base);
    z-index: -1;
}

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

.nav-links a:hover,
.nav-links a.active {
    border-color: var(--white);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-700);
    border-radius: 100px;
    animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out 0.2s both;
    background: linear-gradient(to right, var(--white), var(--gray-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h2 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 400;
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.tagline {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
    color: var(--gray-400);
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

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

/* Glitch effect for hero title */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--black);
}

.glitch::before {
    animation: glitch-1 2s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.glitch::after {
    animation: glitch-2 2s infinite;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0%, 90%, 100% {
        transform: translateX(0);
    }
    92% {
        transform: translateX(-2px);
    }
}

@keyframes glitch-2 {
    0%, 90%, 100% {
        transform: translateX(0);
    }
    92% {
        transform: translateX(2px);
    }
}

/* Buttons */
.hero-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.8s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--white);
    border-radius: 0;
    background: transparent;
    color: var(--white);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--white);
    transition: left var(--transition-base);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--black);
}

.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-primary::before {
    background: var(--black);
}

.btn-primary:hover {
    color: var(--white);
}

/* Sections */
section {
    padding: clamp(4rem, 10vw, 8rem) 0;
    position: relative;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: var(--white);
    margin: var(--spacing-md) 0 var(--spacing-xl);
}

/* Cards */
.card {
    background: var(--gray-950);
    border: 1px solid var(--gray-800);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--white), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover {
    border-color: var(--gray-600);
    transform: translateY(-4px);
}

.card:hover::before {
    opacity: 0.3;
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Project Cards */
.project-card {
    background: var(--gray-950);
    border: 1px solid var(--gray-800);
    padding: 0;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    transition: left var(--transition-slow);
}

.project-card:hover::after {
    left: 100%;
}

.project-card:hover {
    border-color: var(--white);
    transform: translateY(-8px);
}

.project-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-800);
}

.project-category {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-body {
    padding: var(--spacing-xl);
}

.project-description {
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.project-highlights {
    background: var(--gray-900);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-left: 2px solid var(--white);
}

.project-highlights ul {
    list-style: none;
}

.project-highlights li {
    color: var(--gray-300);
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem;
}

.project-highlights li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--white);
}

.project-highlights li:last-child {
    margin-bottom: 0;
}

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

.tech-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid var(--gray-700);
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.tech-badge:hover {
    border-color: var(--white);
    color: var(--white);
    transform: translateY(-2px);
}

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

.project-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--gray-400);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.project-link:hover {
    color: var(--white);
    border-bottom-color: var(--white);
}

/* Skills */
.skill-category {
    margin-bottom: var(--spacing-xl);
}

.skill-category h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-400);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: 0.5rem 1rem;
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    color: var(--gray-300);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--gray-950);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
    margin-top: var(--spacing-3xl);
}

footer h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

footer p {
    text-align: center;
    color: var(--gray-400);
    margin-bottom: var(--spacing-xl);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--gray-400);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
    border-bottom-color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Responsive */
@media (max-width: 768px) {
    nav .container {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }
    
    .nav-brand span {
        font-size: 0.875rem;
    }
    
    .nav-links {
        gap: 0.5rem;
        font-size: 0.75rem;
    }
    
    .nav-links a {
        padding: 0.375rem 0.625rem;
    }
    
    .hero {
        min-height: 70vh;
        padding: var(--spacing-xl) 0;
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-label {
        font-size: 0.75rem;
        margin-bottom: var(--spacing-md);
    }
    
    .card, .project-header, .project-body {
        padding: var(--spacing-md);
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Make text more readable on mobile */
    h1 {
        font-size: clamp(2rem, 10vw, 3rem) !important;
        line-height: 1.2 !important;
    }
    
    h2 {
        font-size: 1.25rem !important;
    }
    
    h3 {
        font-size: 1rem !important;
    }
    
    p {
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    nav .container {
        padding: 0.5rem var(--spacing-md);
    }
    
    .nav-brand {
        font-size: 0.875rem;
    }
    
    .nav-brand span {
        font-size: 0.75rem;
    }
    
    .nav-avatar {
        width: 28px;
        height: 28px;
    }
    
    .nav-links {
        gap: 0.25rem;
    }
    
    .nav-links a {
        padding: 0.25rem 0.5rem;
        font-size: 0.6875rem;
    }
    
    .hero-label {
        font-size: 0.75rem;
    }
    
    .card, .project-header, .project-body {
        padding: var(--spacing-sm);
    }
    
    .section-label {
        font-size: 0.6875rem;
    }
    
    /* Hide alien orbs on very small screens for performance */
    .alien-orb {
        display: none;
    }
    
    /* Reduce grid overlay intensity */
    .grid-overlay {
        opacity: 0.02;
    }
    
    /* Smaller spacing on mobile */
    section {
        padding: var(--spacing-lg) 0;
    }
    
    h1 {
        font-size: clamp(1.75rem, 12vw, 2.5rem) !important;
    }
}

/* Loading animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Scanline effect */
@keyframes scanline {
    0% {
        transform: translateY(-100%);
    }
    100% {
        transform: translateY(100vh);
    }
}

.scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to bottom, transparent, var(--white), transparent);
    opacity: 0.1;
    animation: scanline 8s linear infinite;
    pointer-events: none;
    z-index: 9999;
}