:root {
    --bg-primary: #111111;
    --bg-secondary: #161616;
    --bg-card: #1a1a1a;
    --border: #2a2a2a;
    --border-light: #333333;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --text-muted: #444444;
    --accent: #e0e0e0;
    --accent-hover: #ffffff;
    --green: #4ade80;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.2s ease;
}

ul {
    list-style: none;
}

/* ─── NAVBAR ─── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: transparent;
    border-bottom: 0.5px solid transparent;
    transition: all 0.3s ease;
}

nav.scrolled {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(22, 22, 22, 0.85);
    border-bottom: 0.5px solid var(--border);
}

.nav-container {
    max-width: 900px;
    margin: 0 auto;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.logo-initials {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
}

.logo-name {
    font-size: 12px;
    color: var(--text-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    font-size: 12px;
    color: var(--text-secondary);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--text-primary);
    transition: 0.3s;
}

/* ─── BUTTONS ─── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent);
    color: var(--bg-primary);
    padding: 10px 24px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s ease;
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: var(--text-secondary);
    padding: 10px 24px;
    border: 1px solid var(--text-muted);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s ease;
}

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

.btn-sm {
    padding: 6px 16px;
    font-size: 11px;
}

.btn-outline-nav {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 4px 12px;
    border: 0.5px solid var(--text-secondary);
    border-radius: 6px;
    font-size: 11px;
    transition: 0.2s ease;
}

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

/* ─── LAYOUT ─── */
main {
    padding-top: 0;
}

.section-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 80px 24px;
    position: relative;
}

.section-label {
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-bottom: 32px;
    font-family: 'JetBrains Mono', monospace;
}

.divider-sm {
    width: 60px;
    height: 2px;
    background-color: var(--border);
    border-radius: 1px;
    margin: 12px auto 24px auto;
}

.section-heading {
    font-size: 22px;
    text-align: center;
    font-weight: 500;
}

.section-desc {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 40px;
}

/* ─── HERO ─── */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    text-align: center;
    background-color: #141414;
    padding: 60px 24px 0;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(to bottom, transparent, var(--bg-primary));
    pointer-events: none;
    z-index: 2;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(var(--border) 0.5px, transparent 0.5px),
        linear-gradient(90deg, var(--border) 0.5px, transparent 0.5px);
    background-size: 40px 40px;
    opacity: 0.18;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-card);
    border: 0.5px solid var(--border-light);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 11px;
    color: var(--text-secondary);
}

.dot {
    width: 8px;
    height: 8px;
    background-color: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-name {
    font-size: 56px;
    margin-top: 16px;
    font-weight: 600;
    letter-spacing: -1px;
    color: #fff;
}

.hero-title {
    font-size: 24px;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 8px;
}

.hero-divider {
    width: 60px;
    height: 2px;
    background-color: var(--border-light);
    border-radius: 1px;
}

.hero-tagline {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 24px;
}

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 11px;
    z-index: 10;
    cursor: pointer;
    animation: scrollBounce 2s infinite ease-in-out;
}

.scroll-indicator:hover {
    color: var(--text-secondary);
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

.scroll-indicator .line {
    width: 1px;
    height: 24px;
    background-color: var(--border-light);
}

.scroll-indicator .arrow {
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 6px solid var(--border-light);
}

/* ─── ABOUT ─── */
.about-card {
    background-color: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 12px;
    padding: 40px;
}

.about-card h3 {
    font-size: 18px;
    text-align: center;
    font-weight: 500;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ─── STATS ─── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background-color: var(--bg-secondary);
    border: 0.5px solid var(--border);
    border-radius: 8px;
}

.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 24px;
    font-weight: 600;
    color: #fff;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ─── SKILLS ─── */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.skill-card {
    background-color: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    transition: border-color 0.2s ease;
}

.skill-card:hover {
    border-color: var(--border-light);
}

.skill-card.wide {
    grid-column: span 2;
}

.skill-card h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.skill-card .line-sm {
    width: 100%;
    height: 0.5px;
    background-color: var(--border);
    margin: 12px 0;
}

.skill-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-card li {
    font-size: 12px;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    border: 0.5px solid var(--border);
}

/* ─── PROJECTS ─── */
.project-card {
    background-color: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 20px;
    transition: border-color 0.2s ease;
}

.project-card:hover {
    border-color: var(--border-light);
}

.project-card h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 4px;
}

.project-type {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 12px;
}

.project-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-badges span {
    font-size: 11px;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    border: 0.5px solid var(--border);
    font-family: 'JetBrains Mono', monospace;
}

.project-links {
    display: flex;
    gap: 12px;
}

/* ─── BLOG ─── */
.blog-card {
    background-color: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    margin-bottom: 16px;
    transition: border-color 0.2s ease;
}

.blog-card:hover {
    border-color: var(--border-light);
}

.blog-card h3 a {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 500;
}

.blog-card h3 a:hover {
    color: #fff;
}

.blog-card time {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    display: block;
    margin: 6px 0 10px;
}

.blog-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    padding: 60px 0;
}

/* ─── SINGLE POST ─── */
.post-header {
    margin-bottom: 32px;
}

.post-header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
}

.post-header time {
    font-size: 12px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.post-content {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.back-link {
    font-size: 13px;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

/* ─── CONTACT ─── */
.contact-card {
    background-color: var(--bg-card);
    border: 0.5px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    max-width: 500px;
    margin: 0 auto;
}

.contact-form label {
    display: block;
    margin-top: 16px;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--bg-secondary);
    border: 0.5px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--border-light);
}

.contact-form button {
    margin-top: 24px;
    width: 100%;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 24px;
    font-size: 12px;
}

.contact-links a {
    color: var(--text-muted);
    transition: color 0.2s;
}

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

/* ─── ALERTS ─── */
.alert {
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 20px;
}

.alert-error {
    color: #f87171;
    background-color: rgba(248, 113, 113, 0.1);
    border: 0.5px solid rgba(248, 113, 113, 0.2);
}

.alert-success {
    color: var(--green);
    background-color: rgba(74, 222, 128, 0.1);
    border: 0.5px solid rgba(74, 222, 128, 0.2);
}

/* ─── FOOTER ─── */
footer {
    text-align: center;
    padding: 40px 24px;
    color: var(--text-muted);
    border-top: 0.5px solid var(--border);
    font-size: 12px;
}

/* ─── ANIMATIONS ─── */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* hero elements stagger in */
.hero-el {
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 0.6s ease forwards;
}

.hero-el:nth-child(1) { animation-delay: 0.1s; }
.hero-el:nth-child(2) { animation-delay: 0.2s; }
.hero-el:nth-child(3) { animation-delay: 0.3s; }
.hero-el:nth-child(4) { animation-delay: 0.4s; }
.hero-el:nth-child(5) { animation-delay: 0.5s; }
.hero-el:nth-child(6) { animation-delay: 0.6s; }
.hero-el:nth-child(7) { animation-delay: 0.7s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── MOBILE ─── */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        border-bottom: 0.5px solid var(--border);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
    }

    .nav-links.open {
        display: flex;
    }

    .hero-name {
        font-size: 36px;
    }

    .hero-title {
        font-size: 18px;
    }

    .hero-tagline {
        font-size: 14px;
    }

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

    .skill-card.wide {
        grid-column: span 1;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .about-card {
        padding: 24px;
    }

    .contact-card {
        padding: 24px;
    }

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