/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
    /* Colors - Dark Cyberpunk Palette */
    --color-bg: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-surface: rgba(10, 10, 10, 0.6);
    --color-surface-hover: rgba(15, 15, 15, 0.8);

    /* Minimal Neon Accent - Single color theme */
    --color-primary: #00ff41;      /* Matrix green - main accent */
    --color-secondary: #00ff41;    /* Same as primary for consistency */
    --color-accent: #00cc33;       /* Darker green variant */
    --color-success: #00ff41;      /* Green */

    /* Text Colors - Darker, more muted */
    --color-text-primary: #b4b4b4;
    --color-text-secondary: #6b6b6b;
    --color-text-muted: #404040;

    /* Glass Effect - Much darker */
    --glass-bg: rgba(10, 10, 10, 0.4);
    --glass-border: rgba(0, 255, 65, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.8);

    /* Typography */
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;

    /* Spacing */
    --container-max: 1200px;
    --section-padding: 6rem 2rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index layers */
    --z-background: -1;
    --z-base: 1;
    --z-nav: 100;
    --z-modal: 1000;
}

/* ========================================
   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: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ========================================
   Animated Background
   ======================================== */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    opacity: 0.03;
    background-image:
        linear-gradient(rgba(0, 255, 65, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.3) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.glow-orb {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.08;
    z-index: var(--z-background);
    animation: float 25s ease-in-out infinite;
}

.glow-orb-1 {
    background: var(--color-primary);
    top: -250px;
    right: -250px;
    animation-delay: 0s;
}

.glow-orb-2 {
    background: var(--color-primary);
    bottom: -250px;
    left: -250px;
    animation-delay: -12s;
}

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

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-base);
}

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

.terminal-prompt {
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-base);
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    margin-bottom: 3rem;
    text-align: center;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    position: relative;
    display: inline-block;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
}

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

.terminal-header {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 2rem;
}

.terminal-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-text-muted);
}

.terminal-btn:nth-child(1) { background: #2a2a2a; }
.terminal-btn:nth-child(2) { background: #3a3a3a; }
.terminal-btn:nth-child(3) { background: rgba(0, 255, 65, 0.3); }

.hero h1 {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 8vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.glitch {
    color: var(--color-text-primary);
    animation: glitch 5s infinite;
}

@keyframes glitch {
    0%, 90%, 100% {
        text-shadow: none;
    }
    92% {
        text-shadow:
            -1px 0 rgba(0, 255, 65, 0.4),
            1px 0 rgba(0, 255, 65, 0.2);
        transform: translate(-1px, 0);
    }
    94% {
        text-shadow:
            1px 0 rgba(0, 255, 65, 0.4),
            -1px 0 rgba(0, 255, 65, 0.2);
        transform: translate(1px, 0);
    }
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--color-primary);
    color: #000000;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid rgba(0, 255, 65, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 255, 65, 0.05);
    border-color: var(--color-primary);
}

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

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

.btn-arrow {
    transition: var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ========================================
   Glass Cards
   ======================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(0, 255, 65, 0.2);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.9);
    transform: translateY(-2px);
}

.card-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 16px;
    background: linear-gradient(
        135deg,
        transparent,
        rgba(0, 255, 65, 0.05),
        transparent
    );
    opacity: 0;
    transition: var(--transition-base);
    pointer-events: none;
}

.glass-card:hover .card-border {
    opacity: 1;
}

/* ========================================
   About Section
   ======================================== */
.about-card {
    max-width: 900px;
    margin: 0 auto;
}

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

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.lead {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    font-weight: 500;
}

.about-text p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-actions {
    margin-top: 1.5rem;
}

.about-visual {
    position: relative;
}

.code-block-container {
    position: relative;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.code-caption {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1;
}

.code-block {
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.5;
    overflow-y: auto;
    scroll-behavior: smooth;
    position: relative;
    tab-size: 2;
    flex: 1;
}

/* Thin, dark scrollbar (subtle, not distracting) */
.code-block::-webkit-scrollbar {
    width: 4px;
}

.code-block::-webkit-scrollbar-track {
    background: transparent;
}

.code-block::-webkit-scrollbar-thumb {
    background: rgba(100, 100, 100, 0.3);
    border-radius: 3px;
}

.code-block::-webkit-scrollbar-thumb:hover {
    background: rgba(120, 120, 120, 0.5);
}

/* Firefox scrollbar */
.code-block {
    scrollbar-width: thin;
    scrollbar-color: rgba(100, 100, 100, 0.3) transparent;
}

/* Removed top fade - was showing incorrectly */

.code-line {
    margin: 0.5rem 0;
    color: var(--color-text-secondary);
}

.code-keyword {
    color: var(--color-secondary);
}

.code-property {
    color: var(--color-primary);
}

.code-string {
    color: var(--color-success);
}

.code-number {
    color: var(--color-primary);
}

/* ========================================
   Projects Section
   ======================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 255, 65, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.project-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-success);
    background: rgba(0, 255, 65, 0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 65, 0.15);
}

.project-title {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: rgba(0, 255, 65, 0.05);
    color: var(--color-primary);
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    border: 1px solid rgba(0, 255, 65, 0.15);
}

.project-links {
    display: flex;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.project-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-base);
}

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

.project-link svg {
    transition: var(--transition-base);
}

.project-link:hover svg {
    transform: translateX(2px);
}

/* ========================================
   Skills Section
   ======================================== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.skill-category-clean {
    display: flex;
    flex-direction: column;
}

.skill-category-title-clean {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: var(--color-primary);
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.75rem;
}

.skill-capability-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.skill-capability-list li {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    padding-left: 1.25rem;
    position: relative;
    line-height: 1.6;
}

.skill-capability-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-card {
    max-width: 700px;
    margin: 0 auto;
}

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

.contact-heading {
    font-family: var(--font-mono);
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.contact-text {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    text-decoration: none;
    transition: var(--transition-base);
}

.contact-method:hover {
    border-color: var(--color-primary);
    background: rgba(0, 255, 65, 0.03);
    transform: translateX(4px);
}

.contact-method-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 65, 0.05);
    border-radius: 8px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-method-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.contact-method-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.contact-method-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-primary);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.8);
}

.footer-content {
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-text {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 4rem 1.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transition: var(--transition-base);
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-stats {
        gap: 2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-container {
        grid-template-columns: 1fr;
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .stat-value {
        font-size: 2rem;
    }
}

/* ========================================
   Animations & Effects
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scroll offset for fixed nav */
section {
    scroll-margin-top: 80px;
}

/* Performance optimization */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}