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

:root {
    --bg: #0a0a0f;
    --fg: #e8e8ed;
    --muted: #6b6b80;
    --dim: #3a3a4d;
    --accent: #a78bfa;
    --border: #1c1c2c;
    --card: #101018;
    --radius: 10px;
    --font: 'DM Sans', system-ui, sans-serif;
    --font-h: 'Space Grotesk', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --max: 720px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--fg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    padding: 0 1.5rem;
    max-width: var(--max);
    margin: 0 auto;
}

a { color: inherit; text-decoration: none; }

/* ===== Nav ===== */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 100;
    border-bottom: 1px solid transparent;
}

.nav-logo {
    font-family: var(--font-h);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-right {
    display: flex;
    gap: 1.5rem;
}

.nav-right a {
    font-size: 0.85rem;
    color: var(--muted);
    transition: color 0.15s;
}

.nav-right a:hover { color: var(--fg); }

/* ===== Intro ===== */
.intro {
    padding: 4rem 0 3rem;
}

.intro-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 1.25rem;
    letter-spacing: 0.01em;
}

.intro h1 {
    font-family: var(--font-h);
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.intro-role {
    font-size: 1.05rem;
    color: var(--muted);
    line-height: 1.65;
    max-width: 520px;
}

.intro-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.intro-links a {
    font-size: 0.82rem;
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--border);
    padding: 0.4rem 0.85rem;
    border-radius: 6px;
    transition: border-color 0.15s, background 0.15s;
}

.intro-links a:hover {
    border-color: var(--accent);
    background: rgba(167,139,250,0.06);
}

/* ===== Separator ===== */
.sep {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}

/* ===== About ===== */
.about {
    padding: 3rem 0;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: start;
}

.about-text p {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 0.75rem;
}

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

.about-nums {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-align: right;
    white-space: nowrap;
}

.num strong {
    font-family: var(--font-h);
    font-size: 1.6rem;
    font-weight: 700;
    display: block;
    line-height: 1.2;
}

.num span {
    font-size: 0.78rem;
    color: var(--muted);
}

/* ===== Projets ===== */
.projets { padding: 3rem 0; }

.projets h2,
.parcours h2,
.contact h2 {
    font-family: var(--font-h);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.projet {
    display: block;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s, background 0.2s;
    background: var(--card);
}

.projet:hover {
    border-color: #2e2e48;
    background: #13131e;
}

.projet.flagship {
    border-color: rgba(167,139,250,0.25);
    background: rgba(167,139,250,0.03);
    margin-bottom: 0.75rem;
}

.projet.flagship:hover {
    border-color: rgba(167,139,250,0.45);
}

.projet-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.projet-tag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.arrow {
    color: var(--dim);
    font-size: 1rem;
    transition: transform 0.2s, color 0.2s;
}

.projet:hover .arrow {
    color: var(--accent);
    transform: translate(2px, -2px);
}

.projet h3 {
    font-family: var(--font-h);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.projet p {
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.6;
}

.projet-tech {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--dim);
    margin-top: 0.6rem;
}

.projet-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.projet-grid .projet { margin-bottom: 0; }

/* ===== Parcours ===== */
.parcours { padding: 3rem 0; }

.parcours-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.parcours-col h3 {
    font-family: var(--font-h);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--fg);
}

.mt { margin-top: 2rem; }

.entry {
    margin-bottom: 1.25rem;
}

.date {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--dim);
    display: block;
    margin-bottom: 0.15rem;
}

.entry strong {
    font-family: var(--font-h);
    font-size: 0.92rem;
    font-weight: 600;
    display: block;
    margin-bottom: 0.2rem;
}

.entry p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.55;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tags span {
    font-size: 0.78rem;
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 0.3rem 0.65rem;
    border-radius: 5px;
}

/* ===== Contact ===== */
.contact { padding: 3rem 0; }

.contact > p {
    font-size: 0.92rem;
    color: var(--muted);
    margin-bottom: 1.25rem;
}

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

.contact-links a {
    font-size: 0.82rem;
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 0.45rem 0.9rem;
    border-radius: 6px;
    transition: border-color 0.15s;
}

.contact-links a:hover {
    border-color: var(--accent);
}

/* ===== Footer ===== */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.78rem;
    color: var(--dim);
}

/* ===== Mobile ===== */
@media (max-width: 640px) {
    body { padding: 0 1.25rem; }

    .about {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .about-nums {
        flex-direction: row;
        gap: 2rem;
        text-align: left;
    }

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

    .parcours-cols {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .intro { padding: 3rem 0 2rem; }
}