/* ── Reset & base ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: #1a1a1a;
    color: #f8f8f2;
    font-family: 'JetBrains Mono', monospace;
    overflow-x: hidden;
}
::selection { background: #f92672; color: #1a1a1a; }
strong { color: #fd971f; }
a { color: #66d9ef; text-decoration: none; transition: color 0.3s ease; }
a:hover { color: #a6e22e; }

/* ── Particle canvas ── */
#particleCanvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

/* ── Navbar ── */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(26,26,26,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid #3a3a3a;
    z-index: 1000;
    padding: 0 2rem;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    font-size: 1.2rem; font-weight: 700;
    display: flex; align-items: center; gap: 0.4rem;
    background: linear-gradient(135deg, #f92672 0%, #ae81ff 50%, #66d9ef 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nav-logo:hover {
    background: linear-gradient(135deg, #66d9ef 0%, #ae81ff 50%, #f92672 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a {
    color: #75715e; font-size: 0.85rem; transition: color 0.3s ease; position: relative;
}
.nav-links a:hover { color: #f8f8f2; }
.nav-links a.active { color: #66d9ef; }
.nav-links a.active::after {
    content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
    height: 2px; background: #66d9ef;
}
.nav-sep {
    color: #75715e;
    margin: 0 0.25rem;
    user-select: none;
}
.nav-right { display: flex; align-items: center; gap: 1rem; }
.nav-toggle {
    display: none; background: none; border: none; color: #f8f8f2;
    font-size: 1.3rem; cursor: pointer;
}

/* ── Lang buttons ── */
.lang-btn {
    padding: 0.35rem 0.7rem; border: 1px solid #3a3a3a; background: transparent;
    color: #75715e; border-radius: 4px; cursor: pointer; font-size: 0.75rem;
    font-family: inherit; transition: all 0.3s ease;
    display: inline-flex; align-items: center; line-height: 1;
}
.lang-btn:hover { border-color: #66d9ef; color: #66d9ef; }
.lang-btn.active { background: #66d9ef; color: #1a1a1a; border-color: #66d9ef; }

/* ── Theme toggle ── */
.theme-btn {
    background: none; border: none; color: #75715e; font-size: 1.1rem;
    cursor: pointer; padding: 0.25rem; transition: color 0.3s ease;
}
.theme-btn:hover { color: #fd971f; }

/* ── Scroll progress ── */
#scroll-progress {
    position: fixed; top: 0; left: 0; height: 3px;
    background: linear-gradient(90deg, #f92672, #ae81ff, #66d9ef);
    z-index: 1001; width: 0%; transition: width 0.1s linear;
}

/* ── Section reveal ── */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Toast ── */
#toast {
    position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
    background: #222; color: #a6e22e; padding: 0.7rem 1.5rem;
    border-radius: 8px; border: 1px solid #3a3a3a; font-size: 0.85rem;
    z-index: 2000; opacity: 0; visibility: hidden; transition: all 0.3s ease;
    pointer-events: none;
}
#toast.show { opacity: 1; visibility: visible; }

/* ── Footer ── */
.footer { text-align: center; padding: 3rem 2rem; border-top: 1px solid #3a3a3a; }
.footer p { color: #75715e; font-size: 0.8rem; }
.footer a { color: #66d9ef; }

/* ── Title text reveal ── */
.title-text {
    display: inline-block;
    clip-path: inset(0 100% 0 0);
    transition: clip-path 0.9s cubic-bezier(0.65, 0, 0.35, 1);
}
.reveal.visible .title-text {
    clip-path: inset(0 0 0 0);
}

/* ── Mobile ── */
@media (max-width: 480px) {
    .nav-logo { font-size: 0.9rem; gap: 0.25rem; }
    .nav-logo svg { width: 18px; height: 18px; }
}
@media (max-width: 768px) {
    .nav-links {
        display: none; position: absolute; top: 60px; left: 0; right: 0;
        background: rgba(26,26,26,0.95); backdrop-filter: blur(12px);
        border-bottom: 1px solid #3a3a3a;
        flex-direction: column; padding: 1rem; gap: 0.5rem;
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .nav-sep { display: none; }
}

/* ── Light theme (shared) ── */
html.light body { background: #fafafa; color: #2d2d2d; }
html.light ::selection { background: #f92672; color: #fff; }
html.light .navbar { background: rgba(250,250,250,0.85); border-bottom-color: #ddd; }
html.light .nav-links a { color: #999; }
html.light .nav-links a:hover { color: #2d2d2d; }
html.light .nav-links a.active { color: #f92672; }
html.light .nav-links a.active::after { background: #f92672; }
html.light .nav-sep { color: #ccc; }
html.light .lang-btn { border-color: #ddd; color: #999; }
html.light .lang-btn:hover { border-color: #f92672; color: #f92672; }
html.light .lang-btn.active { background: #f92672; color: #fff; border-color: #f92672; }
html.light .theme-btn { color: #999; }
html.light .theme-btn:hover { color: #fd971f; }
html.light #particleCanvas { opacity: 0.5; }
html.light .footer { border-top-color: #ddd; }
html.light .footer p { color: #999; }
html.light #toast { background: #f0f0f0; border-color: #ddd; }