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

:root {
    --bg: #faf7f2;
    --surface: #f3ede3;
    --surface-2: #ede4d5;
    --border: rgba(160,120,70,0.15);
    --border-strong: rgba(160,120,70,0.3);
    --text: #18120a;
    --text-muted: #9a7a58;
    --text-dim: #5c4530;
    --accent: #c96b0a;
    --accent-light: rgba(201,107,10,0.1);
    --accent-mid: rgba(201,107,10,0.2);
    --section-py: 6rem;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-weight: 300;
    line-height: 1.65;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--accent); }
::selection { background: var(--accent); color: #fff; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
h1,h2,h3,h4 { font-family: 'Syne', sans-serif; line-height: 1.1; }

section { padding: var(--section-py) 0; }

@media (max-width: 768px) {
    :root {
        --section-py: 4rem;
    }
    .container { padding: 0 1.25rem; }
}

.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: none; }

/* NAV */
/* nav {
    height: 60px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 2.5rem;
    background: rgba(250,247,242,0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
} */

/* nav.pos-fixed{
    position: fixed; top: 0; left: 0; right: 0; z-index: 200;
} */

.nav-name {
    font-family: 'Syne', sans-serif;
    font-weight: 700; font-size: 1rem;
    color: var(--text); letter-spacing: -0.02em;
}
.nav-name span { color: var(--accent); }

.nav-links { display: flex; gap: 0.1rem; list-style: none; }
.nav-links a {
    font-size: 0.78rem; font-weight: 500;
    letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--text-muted); text-decoration: none;
    padding: 0.4rem 0.9rem; border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links .hire { background: var(--accent); color: #fff !important; border-radius: 4px; }
.nav-links .hire:hover { background: #a85808; }

/* HERO */
.hero {
    min-height: 100vh; display: flex; align-items: center;
    padding-top: 60px; border-bottom: 1px solid var(--border);
}

.hero-inner {
    display: grid; grid-template-columns: 1fr 400px;
    gap: 5rem; align-items: center; padding: 5rem 0;
}

.hero-available {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem; font-weight: 500;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: #16a34a; background: rgba(22,163,74,0.08);
    border: 1px solid rgba(22,163,74,0.2);
    padding: 0.3rem 0.7rem; border-radius: 100px;
    margin-bottom: 1.75rem; width: fit-content;
}
.hero-available::before {
    content: ''; width: 6px; height: 6px;
    background: #16a34a; border-radius: 50%;
    animation: breathe 2s ease-in-out infinite;
}
@keyframes breathe {
    0%,100% { box-shadow: 0 0 0 0 rgba(22,163,74,0.4); }
    50% { box-shadow: 0 0 0 4px rgba(22,163,74,0); }
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 5rem); font-weight: 800;
    letter-spacing: -0.04em; color: var(--text); margin-bottom: 1.25rem;
}
.hero h1 .outline { color: transparent; -webkit-text-stroke: 1.5px var(--accent); }

.hero-bio {
    font-size: 1.05rem; color: var(--text-dim);
    max-width: 460px; line-height: 1.8; margin-bottom: 2.25rem;
}

.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 0.45rem;
    padding: 0.75rem 1.6rem; border-radius: 6px;
    font-size: 0.875rem; font-weight: 500;
    text-decoration: none; transition: all 0.2s; white-space: nowrap;
}
.btn-fill { background: var(--accent); color: #fff; }
.btn-fill:hover { background: #a85808; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201,107,10,0.25); }
.btn-outline { border: 1px solid var(--border-strong); color: var(--text-dim); }
.btn-outline:hover { color: var(--text); border-color: var(--accent); background: var(--accent-light); }

/* PROFILE CARD */
.hero-card {
    background: white; border: 1px solid var(--border);
    border-radius: 20px; overflow: hidden;
    box-shadow: 0 20px 60px rgba(160,100,30,0.1), 0 4px 16px rgba(160,100,30,0.06);
}
.hero-card-top {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
    padding: 2rem 2rem 0;
    display: flex; flex-direction: column; align-items: center;
    border-bottom: 1px solid var(--border);
}
.avatar {
    width: 96px; height: 96px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, #e8a030 100%);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Syne', sans-serif;
    font-size: 1.9rem; font-weight: 800; color: #fff;
    margin-bottom: 1rem;
    box-shadow: 0 8px 24px rgba(201,107,10,0.3);
}
.hero-card-name {
    font-family: 'Syne', sans-serif;
    font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 0.2rem;
}
.hero-card-role {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem; color: var(--text-muted);
    letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1.25rem;
}
.hero-card-tabs { display: flex; gap: 0; width: 100%; }
.tab {
    flex: 1; padding: 0.6rem; font-size: 0.72rem; font-weight: 500;
    text-align: center; color: var(--text-muted);
    border-top: 1px solid var(--border); cursor: pointer;
}
.tab:first-child { border-right: 1px solid var(--border); }
.tab.active { color: var(--accent); background: var(--accent-light); }

.hero-card-body { padding: 1.5rem; }
.stat-row {
    display: flex; justify-content: space-between;
    padding: 0.6rem 0; border-bottom: 1px solid var(--border); font-size: 0.82rem;
}
.stat-row:last-child { border-bottom: none; }
.stat-label { color: var(--text-muted); }
.stat-val { font-weight: 500; color: var(--text); }
.stat-val.green { color: #16a34a; }
.stat-val.amber { color: var(--accent); font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; }

/* ABOUT */
#about { padding: 6rem 0; border-bottom: 1px solid var(--border); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: start; }

.section-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem; font-weight: 500;
    letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 0.75rem;
}
.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800; letter-spacing: -0.03em;
    color: var(--text); margin-bottom: 1.25rem;
}

.about-text p { font-size: 0.95rem; color: var(--text-dim); line-height: 1.85; margin-bottom: 1rem; }
.about-text p strong { color: var(--text); font-weight: 500; }

.skills-list { display: flex; flex-direction: column; gap: 1.1rem; }
.skill-top { display: flex; justify-content: space-between; font-size: 0.82rem; margin-bottom: 0.4rem; }
.skill-name { font-weight: 500; color: var(--text); }
.skill-pct { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--text-muted); }
.skill-bar { height: 4px; background: var(--surface-2); border-radius: 2px; overflow: hidden; }
.skill-fill { height: 100%; background: var(--accent); border-radius: 2px; width: 0; transition: width 1s cubic-bezier(0.4,0,0.2,1); }

/* EXPERIENCE */
#experience { padding: 6rem 0; background: var(--surface); border-bottom: 1px solid var(--border); }
.exp-header { margin-bottom: 3.5rem; }
.exp-list { display: flex; flex-direction: column; }
.exp-item {
    display: grid; grid-template-columns: 150px 1fr;
    gap: 3rem; padding: 2.5rem 0; border-top: 1px solid var(--border);
    position: relative;
}
.exp-item::before {
    content: ''; position: absolute;
    top: 2.5rem; left: 150px;
    width: 8px; height: 8px;
    background: var(--surface); border: 2px solid var(--border-strong);
    border-radius: 50%; transform: translate(-50%, 6px);
}
.exp-item.current::before { background: var(--accent); border-color: var(--accent); }
.exp-period {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem; color: var(--text-muted);
    padding-top: 0.2rem; text-align: right; padding-right: 2rem;
}
.exp-period .year { display: block; font-size: 0.85rem; font-weight: 500; color: var(--text-dim); }
.exp-company {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem; color: var(--accent);
    letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.3rem;
}
.exp-role {
    font-family: 'Syne', sans-serif;
    font-size: 1.15rem; font-weight: 700; color: var(--text);
    margin-bottom: 0.75rem; letter-spacing: -0.02em;
}
.exp-desc { font-size: 0.88rem; color: var(--text-dim); line-height: 1.75; margin-bottom: 1rem; max-width: 560px; }
.exp-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.exp-tag {
    font-family: 'JetBrains Mono', monospace; font-size: 0.65rem;
    padding: 0.2rem 0.55rem; background: white;
    border: 1px solid var(--border); border-radius: 4px; color: var(--text-muted);
}

/* PROJECTS */
#projects { padding: 6rem 0; border-bottom: 1px solid var(--border); }
.projects-header { margin-bottom: 3.5rem; }
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.project-card {
    background: white; border: 1px solid var(--border); border-radius: 14px;
    overflow: hidden; transition: box-shadow 0.3s, transform 0.3s; cursor: pointer;
    display: flex; flex-direction: column; height: 100%;
}
.project-card:hover { box-shadow: 0 12px 40px rgba(160,100,30,0.12); transform: translateY(-3px); }
.project-card.featured { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; }
.project-thumb {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
    padding: 2rem; display: flex; align-items: center; justify-content: center;
    min-height: 160px; border-bottom: 1px solid var(--border); position: relative; overflow: hidden;
}
.project-card.featured .project-thumb { border-bottom: none; border-right: 1px solid var(--border); min-height: auto; }
.project-thumb-icon { font-size: 3rem; filter: drop-shadow(0 4px 8px rgba(201,107,10,0.2)); }
.project-thumb-bg { position: absolute; inset: 0; background: radial-gradient(circle at 60% 40%, var(--accent-mid) 0%, transparent 65%); }
.project-body { padding: 1.5rem; }
.project-number { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.project-title { font-family: 'Syne', sans-serif; font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 0.5rem; letter-spacing: -0.02em; }
.project-desc { font-size: 0.84rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1.5rem; flex-grow: 1; }
.project-meta { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin-top: auto; }
.project-stat { font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--accent); background: var(--accent-light); padding: 0.2rem 0.5rem; border-radius: 3px; }
.project-link { margin-left: auto; font-size: 0.78rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.project-link:hover { color: var(--accent); }

.mermaid { display: flex; justify-content: center; }

/* WRITING */
#lab { padding: 6rem 0; background: var(--surface); border-bottom: 1px solid var(--border); }
.lab-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 3rem; }
.all-link { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--accent); text-decoration: none; letter-spacing: 0.05em; display: flex; align-items: center; gap: 0.3rem; transition: gap 0.2s; }
.all-link:hover { gap: 0.6rem; }
.posts { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; }
.post-card { 
    background: white; border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; 
    cursor: pointer; transition: box-shadow 0.25s, transform 0.25s;
    display: flex; flex-direction: column; height: 100%;
}
.post-card:hover { box-shadow: 0 8px 28px rgba(160,100,30,0.1); transform: translateY(-2px); }
.post-tag { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; font-weight: 500; padding: 0.18rem 0.5rem; border-radius: 3px; margin-bottom: 0.85rem; }
.tag-green { background: rgba(22,163,74,0.08); color: #16a34a; }
.tag-purple { background: rgba(147,51,234,0.08); color: #9333ea; }
.tag-amber { background: var(--accent-light); color: var(--accent); }
.post-title { font-family: 'Syne', sans-serif; font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 0.6rem; letter-spacing: -0.01em; line-height: 1.3; }
.post-excerpt { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-date { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-muted); margin-top: 1rem; padding-top: 0.75rem; border-top: 1px solid var(--border); }

/* CONTACT */
#contact { padding: 7rem 0 5rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 360px; gap: 5rem; align-items: center; }
.contact-title { font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 800; letter-spacing: -0.04em; color: var(--text); margin-bottom: 1.25rem; }
.contact-title em { font-style: normal; color: var(--accent); }
.contact-desc { font-size: 1rem; color: var(--text-dim); line-height: 1.8; margin-bottom: 2rem; }
.contact-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.social-btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.65rem 1.2rem; border-radius: 6px; font-size: 0.82rem; font-weight: 500; text-decoration: none; color: var(--text-dim); border: 1px solid var(--border); transition: all 0.2s; }
.social-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-light); }
.contact-card { background: white; border: 1px solid var(--border); border-radius: 16px; padding: 2rem; box-shadow: 0 8px 32px rgba(160,100,30,0.08); }
.contact-card-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text-muted); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.5rem; }
.contact-email { font-family: 'Syne', sans-serif; font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 1.5rem; }
.contact-card .btn-fill { width: 100%; justify-content: center; padding: 0.9rem; }
.contact-note { font-size: 0.75rem; color: var(--text-muted); text-align: center; margin-top: 0.75rem; }

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 1.5rem 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-copy { font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--text-muted); }
.footer-nav { display: flex; gap: 1.5rem; }
.footer-nav a { font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; color: var(--text-muted); text-decoration: none; text-transform: uppercase; letter-spacing: 0.06em; transition: color 0.2s; }
.footer-nav a:hover { color: var(--accent); }

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .hero-available { margin-left: auto; margin-right: auto; }
    .hero-bio { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    
    .about-grid { grid-template-columns: 1fr; gap: 4rem; }
    .exp-item { grid-template-columns: 1fr; gap: 0.5rem; }
    .exp-period { text-align: left; padding-right: 0; }
    .exp-item::before { display: none; }
    
    .projects-grid { grid-template-columns: 1fr; gap: 2rem; }
    .project-card.featured { grid-column: auto; grid-template-columns: 1fr; }
    .project-card.featured .project-thumb { border-right: none; border-bottom: 1px solid var(--border); }
    
    .posts { grid-template-columns: 1fr; gap: 1.5rem; }
    .contact-grid { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .contact-links { justify-content: center; }
    
    nav .container > div { padding: 0; }
    .nav-links { display: none; }
}

@media (max-width: 640px) {
    .hero h1 { font-size: 2.75rem; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .section-title { font-size: 2rem; }
}