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

:root {
    --bg-primary: #0a0e13;
    --bg-secondary: #0f1419;
    --bg-card: #141b24;
    --accent: #00ff88;
    --accent-dim: #00cc66;
    --accent-cyan: #00d4ff;
    --accent-red: #ff4757;
    --accent-yellow: #ffa502;
    --text-primary: #cdd9e5;
    --text-secondary: #768390;
    --border: #1e2733;
    --border-accent: rgba(0,255,136,0.3);
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-sans: 'Inter', sans-serif;
    --nav-height: 70px;
    --transition: 0.3s ease;
    --glow: 0 0 20px rgba(0,255,136,0.12);
    --glow-strong: 0 0 30px rgba(0,255,136,0.25);
}

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

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

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

.section { padding: 6rem 0; }
.section-alt { background-color: var(--bg-secondary); }

.section-title {
    font-family: var(--font-mono);
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    color: var(--text-primary);
    margin-bottom: 3rem;
}
.title-prefix { color: var(--accent); }

/* NAV */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: rgba(10,14,19,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}
.navbar.scrolled { border-bottom-color: var(--border-accent); box-shadow: var(--glow); }

.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 2rem;
    height: 100%; display: flex; align-items: center; justify-content: space-between;
}

.nav-logo { font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; cursor: pointer; }
.logo-bracket { color: var(--accent); }

.nav-links { display: flex; list-style: none; gap: 0.25rem; }

.nav-link {
    font-family: var(--font-mono); font-size: 0.82rem;
    color: var(--text-secondary); text-decoration: none;
    padding: 0.45rem 0.7rem; border-radius: 4px; transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--accent); background: rgba(0,255,136,0.08); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-secondary); border-radius: 2px; transition: var(--transition); }
.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 */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden; padding: var(--nav-height) 2rem 2rem;
}

.grid-overlay {
    position: absolute; inset: 0; z-index: 0;
    background-image:
        linear-gradient(rgba(0,255,136,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,136,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content { position: relative; z-index: 1; text-align: center; max-width: 780px; width: 100%; }

.hero-terminal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden;
    margin-bottom: 2.5rem; text-align: left;
    box-shadow: var(--glow-strong), 0 20px 60px rgba(0,0,0,0.5);
}

.terminal-header {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-secondary); padding: 12px 16px;
    border-bottom: 1px solid var(--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: 0.8rem; color: var(--text-secondary); margin-left: auto; }

.terminal-body { padding: 1.75rem 2rem; }

.terminal-line { font-family: var(--font-mono); font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 0.4rem; }
.terminal-line.mt { margin-top: 0.75rem; }
.prompt { color: var(--accent); }
.cmd { color: var(--text-primary); }

.hero-name {
    font-family: var(--font-mono); font-size: clamp(1.8rem, 5vw, 3.2rem);
    font-weight: 700; color: var(--accent); margin: 0.2rem 0 0.8rem 1rem;
    text-shadow: var(--glow-strong);
}
.hero-role {
    font-family: var(--font-mono); font-size: clamp(0.85rem, 2vw, 1rem);
    color: var(--accent-cyan); margin: 0.2rem 0 0.5rem 1rem; min-height: 1.5em;
}
.cursor { display: inline-block; animation: blink 1s step-end infinite; color: var(--accent); }
.cursor-blink { animation: blink 1s step-end infinite; color: var(--accent); font-family: var(--font-mono); }

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

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

.btn {
    font-family: var(--font-mono); font-size: 0.88rem;
    padding: 0.75rem 2rem; border-radius: 6px;
    text-decoration: none; transition: var(--transition); border: 1px solid;
}
.btn-primary { background: var(--accent); color: var(--bg-primary); border-color: var(--accent); font-weight: 700; }
.btn-primary:hover { background: transparent; color: var(--accent); box-shadow: var(--glow-strong); }
.btn-secondary { background: transparent; color: var(--accent); border-color: var(--border-accent); }
.btn-secondary:hover { background: rgba(0,255,136,0.08); border-color: var(--accent); box-shadow: var(--glow); }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 200px 1fr; gap: 4rem; align-items: start; }

.image-placeholder {
    width: 200px; height: 200px;
    border: 2px solid var(--border-accent); border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-card); box-shadow: var(--glow);
}
.image-placeholder i { font-size: 5rem; color: var(--accent); opacity: 0.4; }

.avatar-img {
    width: 200px; height: 200px;
    border-radius: 12px; object-fit: cover;
    border: 2px solid var(--border-accent);
    box-shadow: var(--glow);
}

.about-text { color: var(--text-secondary); font-size: 1rem; line-height: 1.8; margin-bottom: 1rem; }
.about-text strong { color: var(--text-primary); }

.skills-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.skill-tag {
    font-family: var(--font-mono); font-size: 0.78rem;
    padding: 0.3rem 0.7rem;
    background: rgba(0,255,136,0.07); border: 1px solid var(--border-accent);
    border-radius: 4px; color: var(--accent);
}

/* CERTIFICATIONS */
.cert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }

.cert-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.25rem;
    display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 1rem;
    transition: var(--transition);
}
.cert-card:hover { border-color: var(--border-accent); box-shadow: var(--glow); transform: translateY(-2px); }

.cert-icon {
    width: 44px; height: 44px; border-radius: 8px;
    background: rgba(0,255,136,0.08);
    display: flex; align-items: center; justify-content: center;
}
.cert-icon i { font-size: 1.2rem; color: var(--accent); }

.cert-info h3 { font-family: var(--font-mono); font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.15rem; }
.cert-info p { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 0.2rem; }
.cert-issuer { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent-cyan); }

.cert-badge {
    font-family: var(--font-mono); font-size: 0.68rem;
    padding: 0.18rem 0.45rem; border-radius: 4px;
    white-space: nowrap; justify-self: end;
}
.cert-badge.earned { background: rgba(0,255,136,0.12); color: var(--accent); border: 1px solid rgba(0,255,136,0.3); }
.cert-badge.in-progress { background: rgba(255,165,2,0.12); color: var(--accent-yellow); border: 1px solid rgba(255,165,2,0.3); }

/* PROJECTS */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }

.project-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.75rem;
    transition: var(--transition); display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-accent); box-shadow: var(--glow); transform: translateY(-4px); }

.project-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.project-icon { font-size: 1.4rem; color: var(--accent); }
.project-links { display: flex; gap: 0.75rem; }
.project-link { color: var(--text-secondary); text-decoration: none; font-size: 1rem; transition: var(--transition); }
.project-link:hover { color: var(--accent); }

.project-title { font-family: var(--font-mono); font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.6rem; }
.project-desc { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.7; flex: 1; margin-bottom: 1.25rem; }

.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: auto; }
.tag {
    font-family: var(--font-mono); font-size: 0.72rem;
    padding: 0.18rem 0.55rem;
    background: rgba(0,212,255,0.07); border: 1px solid rgba(0,212,255,0.2);
    border-radius: 4px; color: var(--accent-cyan);
}

/* CTF */
.ctf-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }

.ctf-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.75rem;
    transition: var(--transition); display: flex; flex-direction: column;
}
.ctf-card:hover { border-color: var(--border-accent); box-shadow: var(--glow); transform: translateY(-4px); }

.ctf-meta { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.9rem; }
.ctf-platform, .ctf-difficulty { font-family: var(--font-mono); font-size: 0.7rem; padding: 0.18rem 0.55rem; border-radius: 4px; }

.ctf-platform.htb { background: rgba(159,239,0,0.08); color: #9fef00; border: 1px solid rgba(159,239,0,0.25); }
.ctf-platform.thm { background: rgba(255,65,54,0.08); color: #ff4136; border: 1px solid rgba(255,65,54,0.25); }
.ctf-platform.ctf-comp { background: rgba(0,212,255,0.08); color: var(--accent-cyan); border: 1px solid rgba(0,212,255,0.25); }
.ctf-platform.btlo { background: rgba(0,136,255,0.08); color: #4d9de0; border: 1px solid rgba(0,136,255,0.25); }
.ctf-platform.cyberdef { background: rgba(123,93,220,0.08); color: #9b72ff; border: 1px solid rgba(123,93,220,0.25); }

.ctf-difficulty.easy { color: var(--accent); border: 1px solid rgba(0,255,136,0.4); }
.ctf-difficulty.medium { color: var(--accent-yellow); border: 1px solid rgba(255,165,2,0.4); }
.ctf-difficulty.hard { color: var(--accent-red); border: 1px solid rgba(255,71,87,0.4); }

.ctf-title { font-family: var(--font-mono); font-size: 1rem; color: var(--text-primary); margin-bottom: 0.4rem; }
.ctf-category { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.7rem; }
.ctf-category i { color: var(--accent); margin-right: 0.25rem; }
.ctf-excerpt { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.7; margin-bottom: 1.25rem; flex: 1; }

.read-more {
    font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent);
    text-decoration: none; transition: var(--transition);
    display: inline-flex; align-items: center; gap: 0.4rem; margin-top: auto;
}
.read-more:hover { gap: 0.7rem; }

/* BLOG */
.blog-grid { display: grid; gap: 1.25rem; }

.blog-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.75rem;
    display: grid; grid-template-columns: 80px 1fr; gap: 1.75rem; align-items: start;
    transition: var(--transition);
}
.blog-card:hover { border-color: var(--border-accent); box-shadow: var(--glow); }

.blog-date {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    font-family: var(--font-mono);
    border-right: 1px solid var(--border); padding-right: 1.75rem;
}
.blog-date .day { font-size: 1.9rem; font-weight: 700; color: var(--accent); line-height: 1; }
.blog-date .month { font-size: 0.78rem; color: var(--text-secondary); text-transform: uppercase; }
.blog-date .year { font-size: 0.72rem; color: var(--text-secondary); }

.blog-category { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent-cyan); text-transform: uppercase; letter-spacing: 1px; }
.blog-title { font-size: 1.05rem; font-weight: 600; color: var(--text-primary); margin: 0.35rem 0 0.6rem; }
.blog-excerpt { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.7; margin-bottom: 0.9rem; }

/* CONTACT */
.contact-content { text-align: center; }
.contact-text { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 3rem; }

.social-grid { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

.social-card {
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; text-decoration: none; color: var(--text-secondary);
    transition: var(--transition); min-width: 110px;
}
.social-card i { font-size: 1.4rem; }
.social-card span { font-family: var(--font-mono); font-size: 0.78rem; }
.social-card:hover { border-color: var(--border-accent); color: var(--accent); box-shadow: var(--glow); transform: translateY(-4px); }

.discord-card { cursor: pointer; color: #5865f2; border-color: rgba(88,101,242,0.3); min-width: 160px; }
.discord-card:hover { color: #5865f2; border-color: rgba(88,101,242,0.6); box-shadow: 0 0 20px rgba(88,101,242,0.2); }
.discord-hint { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-secondary); }

.copy-confirm {
    font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--accent); margin-top: 1rem;
    opacity: 0; transition: opacity 0.3s ease;
}
.copy-confirm.visible { opacity: 1; }

/* FOOTER */
.footer { background: var(--bg-secondary); border-top: 1px solid var(--border); padding: 2rem 0; text-align: center; }
.footer-text { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-secondary); }

/* BACK TO TOP */
.back-to-top {
    position: fixed; bottom: 2rem; right: 2rem;
    width: 42px; height: 42px;
    background: var(--bg-card); border: 1px solid var(--border-accent);
    border-radius: 8px; color: var(--accent); cursor: pointer;
    opacity: 0; transform: translateY(20px); transition: var(--transition);
    z-index: 100; display: flex; align-items: center; justify-content: center;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: rgba(0,255,136,0.1); box-shadow: var(--glow); }

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed; top: var(--nav-height); left: 0; right: 0;
        background: rgba(10,14,19,0.97); flex-direction: column;
        padding: 1.5rem 2rem; border-bottom: 1px solid var(--border);
        transform: translateY(-150%); transition: transform 0.3s ease; gap: 0.2rem;
    }
    .nav-links.open { transform: translateY(0); }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
    .image-placeholder { margin: 0 auto; }
    .skills-grid { justify-content: center; }
    .blog-card { grid-template-columns: 1fr; }
    .blog-date { flex-direction: row; gap: 0.5rem; border-right: none; border-bottom: 1px solid var(--border); padding-right: 0; padding-bottom: 1rem; }
    .section { padding: 4rem 0; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }
    .terminal-body { padding: 1.25rem; }
    .hero-name { margin-left: 0; }
    .hero-role { margin-left: 0; }
}