:root {
    --bg-color: #0a0e17;
    --card-bg: rgba(16, 23, 38, 0.75);
    --primary: #00f0ff;
    --secondary: #7000ff;
    --accent: #ff0055;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --font-mono: 'Fira Code', monospace;
    --font-sans: 'Inter', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    overflow-x: hidden;
    line-height: 1.6;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.brand-logo {
    color: var(--primary);
    font-family: var(--font-mono);
    font-weight: 600;
    text-decoration: none;
    font-size: 1.2rem;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    text-align: center;
}

.terminal-badge {
    display: inline-block;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
}

.pulse {
    animation: blink 1s infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.2; } }

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    background: linear-gradient(90deg, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--accent);
    font-family: var(--font-mono);
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

/* Code Block */
.code-block {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(112, 0, 255, 0.4);
    border-radius: 8px;
    padding: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    box-shadow: 0 0 20px rgba(112, 0, 255, 0.2);
}

.keyword { color: var(--accent); }
.comment { color: var(--text-muted); font-style: italic; }
.number { color: var(--primary); }

/* Buttons */
.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary);
    color: #000;
    font-weight: 600;
}

.btn-primary:hover {
    box-shadow: 0 0 15px var(--primary);
}

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

.btn-outline:hover {
    background: rgba(0, 240, 255, 0.1);
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    font-size: 1.5rem;
}

.social-links a {
    color: var(--text-muted);
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--primary);
}

/* Metrics Bar */
.metrics-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: -3rem auto 4rem;
    padding: 0 2rem;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.metric-card h3 {
    font-size: 2.2rem;
    color: var(--primary);
    font-family: var(--font-mono);
}

/* Sections */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text-main);
}

.section-title span {
    color: var(--primary);
    font-family: var(--font-mono);
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.info-list {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    font-size: 0.9rem;
}

.info-list span {
    color: var(--primary);
}

.terminal-card {
    background: #000;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.terminal-header {
    background: #1a1a24;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }
.term-title { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.terminal-body { padding: 1rem; font-family: var(--font-mono); font-size: 0.85rem; }
.prompt { color: var(--accent); }

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

.skill-category {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-category h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

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

.project-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.project-card.featured {
    border-color: var(--secondary);
    box-shadow: 0 0 20px rgba(112, 0, 255, 0.2);
}

.project-tag {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
}

.project-features {
    margin: 1rem 0;
    padding-left: 1.2rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary);
}

/* Timeline */
.timeline-item {
    border-left: 2px solid var(--primary);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-date {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.85rem;
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .about-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.2rem; }
    .nav-links { display: none; }
}
:root {
    --bg-color: #0a0e17;
    --card-bg: rgba(16, 23, 38, 0.75);
    --primary: #00f0ff;
    --secondary: #7000ff;
    --accent: #ff0055;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --font-mono: 'Fira Code', monospace;
    --font-sans: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    overflow-x: hidden;
    line-height: 1.6;
}

#bg-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: -1;
}

/* Navbar */
.navbar {
    position: fixed; top: 0; width: 100%;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.nav-container {
    max-width: 1200px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem;
}

.brand-logo { color: var(--primary); font-family: var(--font-mono); font-weight: 600; text-decoration: none; font-size: 1.2rem; }
.nav-links { display: flex; list-style: none; gap: 2rem; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-family: var(--font-mono); font-size: 0.9rem; transition: color 0.3s; }
.nav-links a:hover { color: var(--primary); }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 6rem 2rem 2rem; text-align: center; }
.terminal-badge { display: inline-block; padding: 0.3rem 1rem; border-radius: 20px; background: rgba(0, 240, 255, 0.1); border: 1px solid var(--primary); color: var(--primary); font-family: var(--font-mono); font-size: 0.8rem; margin-bottom: 1.5rem; }
.pulse { animation: blink 1s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.2; } }

.hero h1 { font-size: 3.5rem; font-weight: 800; letter-spacing: 2px; background: linear-gradient(90deg, #fff, var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.subtitle { color: var(--accent); font-family: var(--font-mono); margin-bottom: 2rem; letter-spacing: 1px; }

/* Code Block */
.code-block { background: rgba(0, 0, 0, 0.6); border: 1px solid rgba(112, 0, 255, 0.4); border-radius: 8px; padding: 1.2rem; max-width: 600px; margin: 0 auto 2rem; text-align: left; font-family: var(--font-mono); font-size: 0.85rem; box-shadow: 0 0 20px rgba(112, 0, 255, 0.2); }
.keyword { color: var(--accent); }
.comment { color: var(--text-muted); font-style: italic; }
.number { color: var(--primary); }

/* Buttons */
.btn-group { display: flex; gap: 1rem; justify-content: center; margin-bottom: 2rem; }
.btn { padding: 0.8rem 1.8rem; border-radius: 4px; text-decoration: none; font-family: var(--font-mono); font-size: 0.9rem; transition: all 0.3s; display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; border: none; }
.btn-primary { background: var(--primary); color: #000; font-weight: 600; }
.btn-primary:hover { box-shadow: 0 0 15px var(--primary); }
.btn-outline { border: 1px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: rgba(0, 240, 255, 0.1); }

.social-links { display: flex; gap: 1.5rem; justify-content: center; font-size: 1.5rem; }
.social-links a { color: var(--text-muted); transition: color 0.3s; }
.social-links a:hover { color: var(--primary); }

/* Metrics Bar */
.metrics-bar { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; max-width: 1200px; margin: -3rem auto 4rem; padding: 0 2rem; }
.metric-card { background: var(--card-bg); border: 1px solid rgba(255, 255, 255, 0.05); padding: 1.5rem; border-radius: 8px; text-align: center; }
.metric-card h3 { font-size: 1.4rem; color: var(--primary); font-family: var(--font-mono); }
.metric-card p { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.3rem; }

/* Sections */
.section { max-width: 1200px; margin: 0 auto; padding: 5rem 2rem; }
.section-title { font-size: 1.8rem; margin-bottom: 2rem; color: var(--text-main); }
.section-title span { color: var(--primary); font-family: var(--font-mono); }

/* About Grid */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.info-list { margin-top: 1.5rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; font-size: 0.9rem; }
.info-list span { color: var(--primary); }

.terminal-card { background: #000; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.1); overflow: hidden; }
.terminal-header { background: #1a1a24; padding: 0.5rem 1rem; display: flex; align-items: center; gap: 0.5rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.red { background: #ff5f56; } .yellow { background: #ffbd2e; } .green { background: #27c93f; }
.term-title { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.terminal-body { padding: 1rem; font-family: var(--font-mono); font-size: 0.85rem; max-height: 250px; overflow-y: auto; }
.prompt { color: var(--accent); }

/* Lab / Interactive Controls */
.lab-container { background: var(--card-bg); border: 1px solid rgba(0, 240, 255, 0.2); border-radius: 8px; padding: 2rem; }
.lab-container.margin-top { margin-top: 2rem; }
.lab-header h3 { color: var(--primary); font-family: var(--font-mono); font-size: 1.2rem; }
.lab-header p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.lab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.control-group { margin-bottom: 1.2rem; }
.control-group label { display: block; font-family: var(--font-mono); font-size: 0.85rem; margin-bottom: 0.4rem; color: var(--text-main); }
.control-group input[type="range"] { width: 100%; accent-color: var(--primary); }

/* RFM Explorer */
.rfm-tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.rfm-btn { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); color: var(--text-muted); padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer; font-family: var(--font-mono); font-size: 0.85rem; }
.rfm-btn.active, .rfm-btn:hover { background: rgba(0, 240, 255, 0.1); border-color: var(--primary); color: var(--primary); }
.rfm-content { background: #000; padding: 1.5rem; border-radius: 6px; border: 1px solid rgba(255, 255, 255, 0.1); font-family: var(--font-mono); font-size: 0.9rem; }

/* Skills Section */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.skill-category { background: var(--card-bg); padding: 1.5rem; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.05); }
.skill-category h3 { font-size: 1.1rem; color: var(--primary); margin-bottom: 1rem; }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tags span { background: rgba(0, 240, 255, 0.1); color: var(--primary); padding: 0.3rem 0.8rem; border-radius: 4px; font-family: var(--font-mono); font-size: 0.8rem; }

/* Projects Section */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.project-card { background: var(--card-bg); border: 1px solid rgba(255, 255, 255, 0.05); padding: 2rem; border-radius: 8px; transition: transform 0.3s; }
.project-card:hover { transform: translateY(-5px); border-color: var(--primary); }
.project-card.featured { border-color: var(--secondary); box-shadow: 0 0 20px rgba(112, 0, 255, 0.2); }
.project-tag { font-family: var(--font-mono); color: var(--accent); font-size: 0.75rem; margin-bottom: 0.5rem; }

/* Project Specific Stat Callout Box */
.project-stats-box { display: flex; gap: 1rem; margin: 1rem 0; padding: 0.8rem; background: rgba(0,0,0,0.5); border: 1px dashed var(--primary); border-radius: 6px; }
.p-stat strong { display: block; color: var(--primary); font-family: var(--font-mono); font-size: 1.1rem; }
.p-stat span { font-size: 0.75rem; color: var(--text-muted); }

.project-features { margin: 1rem 0; padding-left: 1.2rem; font-size: 0.9rem; color: var(--text-muted); }
.project-tech { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; font-family: var(--font-mono); font-size: 0.75rem; color: var(--primary); }

/* Timeline */
.timeline-item { border-left: 2px solid var(--primary); padding-left: 1.5rem; margin-bottom: 2rem; position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -6px; top: 0; width: 10px; height: 10px; background: var(--primary); border-radius: 50%; }
.timeline-date { font-family: var(--font-mono); color: var(--accent); font-size: 0.85rem; }

footer { text-align: center; padding: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.05); font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); }

@media (max-width: 768px) {
    .about-grid, .lab-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.2rem; }
    .nav-links { display: none; }
}