/* ===============================================
   PORTFOLIO - Terminal-Inspired Cybersecurity Theme
   Premium Redesign v2.0
   =============================================== */

/* === CSS Custom Properties === */
:root {
    /* Colors - Deep Cyber Palette */
    --color-bg: #050508;
    --color-bg-secondary: #0c0c12;
    --color-bg-card: rgba(12, 14, 22, 0.7);
    --color-bg-card-solid: #0c0e16;
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);

    --color-text: #e8eaed;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;

    --color-accent: #00ff88;
    --color-accent-dim: #00cc6e;
    --color-accent-secondary: #38bdf8;
    --color-accent-glow: rgba(0, 255, 136, 0.15);
    --color-accent-glow-strong: rgba(0, 255, 136, 0.3);

    --color-danger: #f43f5e;
    --color-warning: #f59e0b;
    --color-success: #00ff88;

    /* Glass Effect */
    --glass-bg: rgba(12, 14, 22, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);

    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', system-ui, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse at 15% 10%, rgba(0, 255, 136, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 60%, rgba(56, 189, 248, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 90%, rgba(139, 92, 246, 0.02) 0%, transparent 40%);
    background-attachment: fixed;
}

/* === Typography === */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

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

a:hover {
    color: var(--color-accent-secondary);
}

code,
.font-mono {
    font-family: var(--font-mono);
}

/* === Animated Background === */
.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background:
        radial-gradient(ellipse 80% 60% at 20% 30%, rgba(0, 255, 136, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 80% 70%, rgba(56, 189, 248, 0.04) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 50% 50%, rgba(139, 92, 246, 0.03) 0%, transparent 60%),
        var(--color-bg);
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.6) 10%, transparent 60%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.6) 10%, transparent 60%);
    animation: gridDrift 20s ease-in-out infinite alternate;
}

@keyframes gridDrift {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 40px 40px;
    }
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* === Header (Floating Glass Navbar) === */
.header {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 100;
    background: rgba(8, 10, 18, 0.65);
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
}

.header-scrolled {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.04);
    background: rgba(8, 10, 18, 0.85);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: var(--transition-normal);
    filter: drop-shadow(0 0 8px var(--color-accent-glow));
}

.logo:hover .logo-img {
    filter: drop-shadow(0 0 12px var(--color-accent-glow-strong));
    transform: scale(1.05);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* === Language Toggle === */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.lang-btn.active {
    background: var(--color-accent);
    color: var(--color-bg);
}

.lang-separator {
    color: var(--color-border);
}

/* === Social Icons === */
.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.social-icon:hover {
    color: var(--color-accent);
}

.social-icon svg {
    width: 20px;
    height: 20px;
}

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

.hero-content {
    text-align: center;
    max-width: 700px;
}

.terminal-window {
    background: rgba(8, 10, 18, 0.8);
    border: 1px solid rgba(0, 255, 136, 0.12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
    text-align: left;
    box-shadow: 0 0 40px rgba(0, 255, 136, 0.05), 0 8px 32px rgba(0, 0, 0, 0.4);
    position: relative;
}

.terminal-window::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(0, 255, 136, 0.008) 2px,
            rgba(0, 255, 136, 0.008) 4px);
    pointer-events: none;
    border-radius: var(--radius-lg);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red {
    background: #ff5f56;
}

.terminal-dot.yellow {
    background: #ffbd2e;
}

.terminal-dot.green {
    background: #27c93f;
}

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-left: auto;
}

.terminal-body {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.terminal-line {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

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

.terminal-command {
    color: var(--color-text);
}

.terminal-output {
    color: var(--color-text-secondary);
    padding-left: 1.5rem;
}

.typing-cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background: var(--color-accent);
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xl);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    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-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.3));
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dim));
    color: var(--color-bg);
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.1);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.25), 0 0 60px rgba(0, 255, 136, 0.1);
    color: var(--color-bg);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--color-text);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    border-color: rgba(0, 255, 136, 0.2);
    background: rgba(0, 255, 136, 0.05);
    color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.05);
    transform: translateY(-1px);
}

/* === Section === */
.section {
    padding: var(--spacing-3xl) 0;
}

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

.section-icon {
    color: var(--color-accent);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
}

.section-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
}

/* === Cards (Glassmorphism) === */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    pointer-events: none;
}

.card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-glow-green:hover {
    border-color: rgba(0, 255, 136, 0.2);
    box-shadow: 0 0 40px rgba(0, 255, 136, 0.08), 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-glow-blue:hover {
    border-color: rgba(56, 189, 248, 0.2);
    box-shadow: 0 0 40px rgba(56, 189, 248, 0.08), 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-glow-red:hover {
    border-color: rgba(244, 63, 94, 0.2);
    box-shadow: 0 0 40px rgba(244, 63, 94, 0.1), 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* === Grid === */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* === Tags === */
.tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.tag-green {
    background: rgba(0, 255, 136, 0.1);
    color: var(--color-accent);
}

.tag-blue {
    background: rgba(0, 136, 255, 0.1);
    color: var(--color-accent-secondary);
}

.tag-orange {
    background: rgba(255, 170, 0, 0.1);
    color: var(--color-warning);
}

.tag-red {
    background: rgba(255, 68, 68, 0.1);
    color: var(--color-danger);
}

.tag-purple {
    background: rgba(136, 68, 255, 0.1);
    color: #aa88ff;
}

.tag-gray {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
}

/* === About Section === */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    font-family: var(--font-mono);
}

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

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* === Skills Section === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.skill-category h4 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.skill-item {
    margin-bottom: var(--spacing-md);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

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

.skill-level {
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.skill-bar {
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    border-radius: 3px;
    transition: width 1s ease;
}

@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

/* === Projects Section === */
.project-card {
    position: relative;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.project-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-glow);
    border-radius: var(--radius-md);
    color: var(--color-accent);
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.project-description {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.project-stats {
    display: flex;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.project-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.project-stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* === CTF Vault Section === */
.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
}

.filter-btn.active {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.writeup-card {
    cursor: pointer;
}

.writeup-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.writeup-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.writeup-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

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

.writeup-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-accent);
}

.writeup-event {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* === Experience Timeline === */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-secondary));
}

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

.timeline-dot {
    position: absolute;
    left: -30px;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--color-accent);
    border-radius: 50%;
    border: 3px solid var(--color-bg);
}

.timeline-dot.blue {
    background: var(--color-accent-secondary);
}

.timeline-dot.gray {
    background: var(--color-text-muted);
}

.timeline-content {
    padding: var(--spacing-lg);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-company {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.timeline-logo {
    height: 24px;
    width: auto;
}

.timeline-company-name {
    font-size: 1.125rem;
    font-weight: 600;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-accent-glow);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
}

.timeline-date.blue {
    background: rgba(0, 136, 255, 0.1);
    color: var(--color-accent-secondary);
}

.timeline-date.gray {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
}

.timeline-role {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    font-size: 0.875rem;
}

/* === Certifications Section === */
.cert-card {
    text-align: center;
    cursor: pointer;
}

.cert-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-glow), rgba(0, 136, 255, 0.1));
    border-radius: 50%;
}

.cert-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.cert-icon.purple svg {
    color: #aa88ff;
}

.cert-icon.yellow svg {
    color: var(--color-warning);
}

.cert-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.cert-issuer {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.cert-org {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* === Footer === */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

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

/* === Modal === */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: var(--transition-normal);
}

.modal.open .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    z-index: 10;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg-card);
    color: var(--color-text);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 60px);
}

/* === Lightbox === */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.lightbox.open {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.lightbox.open .lightbox-img {
    transform: scale(1);
}

.writeup-image {
    cursor: zoom-in;
    transition: var(--transition-fast);
}

.writeup-image:hover {
    opacity: 0.9;
}

/* === Writeup Content Styling === */
.writeup-content {
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.writeup-content p {
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.writeup-content img {
    display: block;
    max-width: 100%;
    height: auto;
    object-fit: contain;
    margin: var(--spacing-lg) auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    transition: var(--transition-normal);
}

.writeup-content img:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.15);
}

.writeup-content code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    background: rgba(0, 255, 136, 0.08);
    color: var(--color-accent);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.writeup-content pre {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    overflow-x: auto;
}

.writeup-content pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--color-text);
    font-size: 0.8rem;
    line-height: 1.6;
}

.writeup-content blockquote {
    background: linear-gradient(90deg, rgba(0, 255, 136, 0.08) 0%, transparent 100%);
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.writeup-content blockquote strong {
    color: var(--color-accent);
}

.writeup-content h3 {
    color: var(--color-text);
    font-size: 1.1rem;
    margin: var(--spacing-xl) 0 var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.writeup-content .highlight-tool {
    color: var(--color-accent-secondary);
    font-weight: 600;
}

.writeup-content .highlight-term {
    color: var(--color-accent);
    font-weight: 600;
}

.writeup-content .highlight-flag {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Write-up Summary Box */
.writeup-summary {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05), rgba(0, 136, 255, 0.05));
    border: 1px solid rgba(0, 255, 136, 0.15);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.writeup-content .writeup-summary h4 {
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 1rem;
}

.writeup-summary p {
    margin-bottom: 0;
    color: var(--color-text-secondary);
}

/* Write-up Detection Strategy */
.writeup-detection {
    background: rgba(255, 68, 68, 0.05);
    border: 1px solid rgba(255, 68, 68, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.writeup-content .writeup-detection h4 {
    color: #ff6b6b;
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1rem;
}

.writeup-detection ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.writeup-detection li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.writeup-detection li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #ff6b6b;
}

/* MITRE ATT&CK Table */
.writeup-mitre {
    margin-bottom: var(--spacing-xl);
}

.writeup-content .writeup-mitre h4 {
    color: var(--color-text);
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1rem;
}

.mitre-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.mitre-table th,
.mitre-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.mitre-table th {
    background: rgba(0, 136, 255, 0.1);
    color: var(--color-accent-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mitre-table td code {
    background: rgba(255, 170, 0, 0.1);
    color: var(--color-warning);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.mitre-table tr:last-child td {
    border-bottom: none;
}

.mitre-table tr:hover {
    background: rgba(0, 255, 136, 0.03);
}

/* Write-up Section Headers */
.writeup-content h4 {
    color: var(--color-text);
    font-size: 1rem;
    margin: var(--spacing-xl) 0 var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 255, 136, 0.2);
}

/* === Mobile Navigation === */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

@media (max-width: 768px) {
    .header {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(8, 10, 18, 0.95);
        backdrop-filter: blur(20px);
        border-bottom-left-radius: var(--radius-xl);
        border-bottom-right-radius: var(--radius-xl);
        border: 1px solid var(--glass-border);
        border-top: none;
        padding: var(--spacing-lg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

/* === Utilities === */
.hidden {
    display: none !important;
}

.text-accent {
    color: var(--color-accent);
}

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

.text-muted {
    color: var(--color-text-muted);
}

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

.mb-0 {
    margin-bottom: 0;
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* === Scroll Reveal Animation === */
.section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Ambient Glow Keyframes === */
@keyframes ambientPulse {

    0%,
    100% {
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.05);
    }

    50% {
        box-shadow: 0 0 50px rgba(0, 255, 136, 0.1), 0 0 80px rgba(56, 189, 248, 0.05);
    }
}

.hero .terminal-window {
    animation: ambientPulse 4s ease-in-out infinite;
}

/* === Stat Cards accent bar === */
.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    border-radius: 1px;
    transition: width var(--transition-normal);
}

.stat-card:hover::after {
    width: 60%;
}

/* === Project Icon Pulse === */
.project-icon {
    transition: var(--transition-normal);
}

.project-card:hover .project-icon {
    box-shadow: 0 0 20px var(--color-accent-glow);
}

/* === Filter Button Active Glow === */
.filter-btn.active {
    box-shadow: 0 0 16px rgba(0, 255, 136, 0.15);
}

/* === Cert Card Hover Enhancement === */
.cert-card:hover .cert-icon {
    transform: scale(1.05);
}

.cert-icon {
    transition: transform var(--transition-normal);
}

/* === Timeline Dot Glow === */
.timeline-dot {
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.2);
}

.timeline-dot.blue {
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

/* === Writeup Card hover accent line === */
.writeup-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    transition: width var(--transition-normal);
}

.writeup-card:hover::after {
    width: 100%;
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .section {
        opacity: 1;
        transform: none;
    }
}