/* Zeh — simple, clean portfolio. No gimmicks. */

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

:root {
    --bg: #ffffff;
    --ink: #1a1a1a;
    --ink-soft: #4b5563;
    --ink-mute: #9ca3af;
    --line: #e5e7eb;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: #eff6ff;
    --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --radius: 8px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--ink-mute); }

/* ============ HEADER ============ */
.site-head {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
    max-width: 640px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}
.mark {
    font-weight: 700; font-size: 1.15rem;
    letter-spacing: -0.01em;
}
.head-nav { display: flex; gap: 24px; }
.head-nav a {
    color: var(--ink-soft);
    font-size: .92rem;
    transition: color .12s;
}
.head-nav a:hover { color: var(--ink); text-decoration: none; }

/* ============ INTRO ============ */
.intro {
    max-width: 640px;
    padding: 80px 32px 64px;
    margin: 0 auto;
}
.intro h1 {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.intro-sub {
    font-size: 1.15rem;
    color: var(--ink-soft);
    margin-bottom: 14px;
}
.intro-note {
    font-size: .95rem;
    color: var(--ink-soft);
}

/* ============ SECTIONS ============ */
.section {
    max-width: 640px;
    padding: 40px 32px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
}
.section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

/* ============ PROJECTS ============ */
.project-list { display: grid; gap: 20px; }
.project {
    padding: 22px 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: box-shadow .15s;
}
.project:hover { box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.project-head {
    display: flex; justify-content: space-between; align-items: baseline;
    gap: 12px; flex-wrap: wrap;
    margin-bottom: 8px;
}
.project h3 {
    font-size: 1.05rem; font-weight: 600;
}
.project-status {
    font-size: .75rem; font-weight: 600;
    padding: 2px 10px; border-radius: 99px;
}
.project-status.live { background: #ecfdf5; color: #059669; }
.project-status.pending { background: #fffbeb; color: #d97706; }
.project-desc {
    color: var(--ink-soft);
    font-size: .92rem;
    margin-bottom: 12px;
}
.project-tags {
    display: flex; gap: 6px; flex-wrap: wrap;
    margin-bottom: 12px;
}
.project-tags span {
    font-size: .72rem;
    background: var(--accent-soft); color: var(--accent);
    padding: 3px 10px; border-radius: 99px;
    font-weight: 500;
}
.project-actions { display: flex; gap: 10px; }
.project-actions a, .project-actions button {
    font-size: .82rem; font-weight: 500;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    background: var(--bg);
    padding: 5px 14px; border-radius: 6px;
    text-decoration: none;
    transition: all .12s;
}
.project-actions a:hover, .project-actions button:hover {
    border-color: var(--ink-mute); color: var(--ink);
    text-decoration: none;
}

/* ============ ABOUT ============ */
.about-grid { display: grid; gap: 20px; }
.about-text p {
    color: var(--ink-soft);
    margin-bottom: 16px;
    font-size: .98rem;
}
.plain-list {
    list-style: none;
    display: grid; gap: 8px;
    margin-top: 8px;
}
.plain-list li {
    font-size: .92rem;
    color: var(--ink-soft);
    padding-left: 16px;
    position: relative;
}
.plain-list li::before {
    content: "·";
    position: absolute; left: 0;
    color: var(--accent);
    font-weight: 700;
}
.plain-list strong { color: var(--ink); font-weight: 600; }

/* ============ CONTACT ============ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}
.contact-note {
    color: var(--ink-soft);
    font-size: .95rem;
    line-height: 1.7;
}
.email-link {
    font-weight: 600;
    border-bottom: 1px solid var(--accent);
}
.contact-form { display: grid; gap: 12px; }
.contact-form label {
    display: grid; gap: 5px;
    font-size: .85rem; font-weight: 600;
    color: var(--ink-soft);
}
.contact-form input, .contact-form textarea {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 10px 13px;
    font-size: .92rem; font-family: var(--sans);
    background: var(--bg);
    resize: vertical;
    transition: border-color .12s, box-shadow .12s;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.contact-form button {
    background: var(--accent); color: #fff;
    border: 0; border-radius: var(--radius);
    padding: 11px;
    font-size: .92rem; font-weight: 600;
    cursor: pointer;
    transition: background .12s;
}
.contact-form button:hover { background: var(--accent-hover); }
.contact-form button:disabled { opacity: .5; cursor: wait; }

.form-status {
    font-size: .85rem;
    margin-top: 4px;
}
.form-status.ok { color: #059669; }
.form-status.err { color: #dc2626; }

/* ============ FOOTER ============ */
.site-foot {
    border-top: 1px solid var(--line);
    padding: 24px 32px;
    display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    font-size: .82rem;
    color: var(--ink-mute);
    max-width: 640px;
    margin: 0 auto;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 640px) {
    body { font-size: 15px; }
    .intro { padding: 56px 24px 48px; }
    .intro h1 { font-size: 2rem; }
    .section { padding: 32px 24px; }
    .contact-grid { grid-template-columns: 1fr; gap: 24px; }
    .site-head { padding: 16px 24px; }
    .head-nav { gap: 16px; font-size: .88rem; }
    .site-foot { padding: 20px 24px; }
}