:root {
    --bg:       #0e0e0e;
    --bg2:      #161616;
    --border:   #2a2a2a;
    --text:     #e8e4dc;
    --muted:    #666;
    --accent:   #c8f04e;
    --font-head: 'Roboto', sans-serif;
    --font-mono: 'Roboto', sans-serif;
    --max:      1100px;
    --gap:      2rem;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 1.05rem;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:link { text-decoration: none; }
a.card:hover { text-decoration: none; }
.projects-grid:hover {text-decoration: none;}
img {
    display: block;
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--border);
}

.placeholder-img {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ── Layout ── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 100%;
}

.site-logo {
    font-family: var(--font-head);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--text);
    letter-spacing: -0.02em;
}
.site-logo .dot { color: var(--accent); }

nav { display: flex; gap: 1.5rem; }

nav a {
    color: var(--muted);
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--text); text-decoration: none; }
nav a.active { color: var(--accent); }

.internship-notice {
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 0.6rem 2rem;
    font-size: 0.75rem;
    color: var(--muted);
    text-align: center;
    line-height: 1.4;
}

main {
    flex: 1;
    width: 100%;
    max-width: var(--max);
    margin: 0 auto;
    padding: 4rem 2rem;
}

.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--muted);
    max-width: 100%;
}

.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); text-decoration: none; }

/* ── Hero ── */

.hero {
    padding: 5rem 0 4rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4rem;
}

.hero-tag {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.2rem;
}

.hero-name {
    font-family: var(--font-head);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.hero-name em {
    font-style: normal;
    color: var(--accent);
}

.hero-desc {
    max-width: 520px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.65rem 1.4rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid var(--border);
    color: var(--text);
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.btn:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }

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

/* ── Section titles ── */

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.8rem;
}

.section-title {
    font-family: var(--font-head);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section-count {
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 0.1em;
}

/* ── Project cards ── */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--gap);
}

.card {
    border: 1px solid var(--border);
    background: var(--bg2);
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
    cursor: pointer;
    color: inherit;
    text-decoration: none;
}

.card:hover { border-color: var(--accent); text-decoration: none; }

.card-body {
    padding: 1.2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-tag {
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
}

.card-title {
    font-family: var(--font-head);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.card-desc {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.6;
    flex: 1;
}

.card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.tag {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--border);
    color: var(--muted);
    letter-spacing: 0.05em;
}

.card-footer {
    padding: 0.8rem 1.2rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1rem;
}

.card-footer a {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}
.card-footer a:hover { color: var(--accent); text-decoration: none; }

/* ── Project detail ── */

.project-detail { max-width: 720px; }

.project-detail h1 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 1rem;
}

.project-meta {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin: 1.5rem 0;
    padding: 1.2rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.meta-item { display: flex; flex-direction: column; gap: 0.2rem; }
.meta-label { font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.meta-value { font-size: 0.9rem; color: var(--text); }

.project-body { margin-top: 2rem; }
.project-body p { color: var(--muted); margin-bottom: 1.2rem; font-size: 0.95rem; line-height: 1.8; }
.project-body h2 { font-family: var(--font-head); font-size: 1.1rem; color: var(--text); margin: 2rem 0 0.8rem; }

.project-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

/* ── CV ── */

.cv-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.cv-section { margin-bottom: 2.5rem; }

.cv-section-title {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.cv-entry { margin-bottom: 1.5rem; }

.cv-entry-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.3rem;
}

.cv-entry-title {
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
}

.cv-date {
    font-size: 0.75rem;
    color: var(--muted);
    white-space: nowrap;
}

.cv-org { font-size: 0.8rem; color: var(--accent); margin-bottom: 0.4rem; }

.cv-entry p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.skill-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.skill-bar {
    width: 100px;
    height: 2px;
    background: var(--border);
    position: relative;
}

.skill-fill {
    position: absolute;
    left: 0; top: 0;
    height: 100%;
    background: var(--accent);
}

/* ── About ── */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.about-photo {
    aspect-ratio: 3/4;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.about-content h1 {
    font-family: var(--font-head);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.2rem;
}

.about-content strong { color: var(--text); font-weight: 500; }

/* ── Home featured ── */

.featured-project {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    border: 1px solid var(--border);
    background: var(--bg2);
    margin-bottom: 1rem;
    transition: border-color 0.2s;
}
.featured-project:hover { border-color: var(--accent); }

.featured-project .placeholder-img { aspect-ratio: unset; height: 100%; min-height: 200px; }

.featured-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
}

.featured-tag {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
}

.featured-title {
    font-family: var(--font-head);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

.featured-desc { font-size: 0.85rem; color: var(--muted); line-height: 1.7; }

/* ── Utility ── */

.back-link {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 2rem;
}
.back-link:hover { color: var(--text); text-decoration: none; }

@media (max-width: 700px) {
    .cv-grid, .about-grid, .featured-project { grid-template-columns: 1fr; }
    .project-images { grid-template-columns: 1fr; }
    .hero-name { font-size: 3.5rem; }
    .site-header { padding: 1rem; }
    main { padding: 2rem 1rem; }
}