@import url('https://fonts.googleapis.com/css2?family=Special+Elite&family=Share+Tech+Mono&display=swap');

/* ── variables ── */
:root {
    --bg:        #1a1a14;
    --bg2:       #222218;
    --cream:     #e8dcc8;
    --olive:     #6b7c3a;
    --olive-lt:  #8a9e4a;
    --amber:     #c8a84b;
    --muted:     #8a8a7a;
    --border:    #3a3a2a;
    --font-head: 'Special Elite', cursive;
    --font-mono: 'Share Tech Mono', monospace;
}

/* ── reset ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg);
    color: var(--cream);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--olive-lt);
    text-decoration: none;
}

a:hover { color: var(--amber); }

/* ── nav ── */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg2);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-head);
    font-size: 1.2rem;
    color: var(--cream);
}

.nav-brand a {
    color: var(--cream);
    letter-spacing: 2px;
}

.nav-callsign {
    color: var(--olive-lt);
    font-size: 1.4rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: lowercase;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--amber); }

/* ── main ── */
.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 20px;
    flex: 1;
    width: 100%;
}

/* ── hero ── */
.hero {
    text-align: center;
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 60px;
}

.hero-patch {
    display: inline-block;
    border: 2px solid var(--olive);
    color: var(--olive-lt);
    font-size: 0.7rem;
    letter-spacing: 6px;
    padding: 4px 16px;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-head);
    font-size: 3rem;
    color: var(--cream);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.hero-sub {
    color: var(--muted);
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 40px;
}

.hero-links {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 8px 20px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    transition: all 0.2s;
}

.btn:hover {
    border-color: var(--olive);
    color: var(--olive-lt);
    background-color: var(--bg2);
}

/* ── section title ── */
.section-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--olive-lt);
    letter-spacing: 3px;
    margin-bottom: 30px;
    font-weight: normal;
}

/* ── post card ── */
.post-card {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.post-date {
    font-size: 0.75rem;
    color: var(--muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 6px;
}

.post-title {
    font-family: var(--font-head);
    font-size: 1.3rem;
    color: var(--cream);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 8px;
}

.post-title:hover { color: var(--amber); }

.post-summary {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ── blog list ── */
.post-list { margin-top: 10px; }

/* ── single post ── */
.single-post { max-width: 700px; }

.post-header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.post-header h1 {
    font-family: var(--font-head);
    font-size: 2rem;
    color: var(--cream);
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.post-meta {
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.post-content h1,
.post-content h2,
.post-content h3 {
    font-family: var(--font-head);
    color: var(--cream);
    margin: 32px 0 16px;
    letter-spacing: 1px;
}

.post-content p { margin-bottom: 16px; color: var(--cream); }

.post-content code {
    background: var(--bg2);
    color: var(--olive-lt);
    padding: 2px 6px;
    border: 1px solid var(--border);
    font-family: var(--font-mono);
}

.post-content pre {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--olive);
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
}

.post-content a { color: var(--olive-lt); }
.post-content a:hover { color: var(--amber); }

/* ── about ── */
.about-header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.about-header h1 {
    font-family: var(--font-head);
    font-size: 2rem;
    letter-spacing: 3px;
    color: var(--cream);
}

.about-content p {
    color: var(--cream);
    margin-bottom: 16px;
    line-height: 1.8;
}

.social-links {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.social-links a {
    border: 1px solid var(--border);
    padding: 6px 16px;
    font-size: 0.8rem;
    color: var(--muted);
    letter-spacing: 1px;
    transition: all 0.2s;
}

.social-links a:hover {
    border-color: var(--olive);
    color: var(--olive-lt);
}

/* ── footer ── */
footer {
    border-top: 1px solid var(--border);
    padding: 20px 40px;
    background-color: var(--bg2);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--muted);
}

.footer-links a:hover { color: var(--amber); }

/* ── projects ── */
.project-card {
    padding: 24px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
    background-color: var(--bg2);
    transition: border-color 0.2s;
}

.project-card:hover { border-color: var(--olive); }

.project-card h3 {
    font-family: var(--font-head);
    color: var(--cream);
    font-size: 1.2rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.project-card p {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.project-link {
    font-size: 0.8rem;
    color: var(--olive-lt);
    letter-spacing: 1px;
}

/* ── hamburger ── */
.hamburger {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--cream);
    font-size: 1.2rem;
    padding: 4px 10px;
    cursor: pointer;
}

/* ── responsive ── */
@media (max-width: 768px) {
    .nav {
        flex-wrap: wrap;
        padding: 16px 20px;
        position: relative;
    }

    .nav-brand a {
        font-size: 1rem;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        margin-top: 10px;
        border-top: 1px solid var(--border);
        padding-top: 10px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .hero {
        padding: 40px 0 30px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-links {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        text-align: center;
    }

    .main-content {
        padding: 30px 16px;
    }

    .footer-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .research-meta {
        flex-direction: column;
        gap: 8px;
    }

    .paper-meta {
        flex-direction: column;
        gap: 8px;
    }
}

/* ── research ── */
.section-header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.section-sub {
    color: var(--muted);
    font-size: 0.85rem;
    letter-spacing: 2px;
    margin-top: 8px;
}

.research-card {
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
}

.research-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 8px;
}

.research-tag {
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: var(--olive-lt);
    border: 1px solid var(--olive);
    padding: 2px 10px;
    text-transform: uppercase;
}

.research-title {
    font-family: var(--font-head);
    font-size: 1.4rem;
    color: var(--cream);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.research-title:hover { color: var(--amber); }

.research-abstract {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.research-read {
    font-size: 0.8rem;
    color: var(--olive-lt);
    letter-spacing: 1px;
}

.research-read:hover { color: var(--amber); }

/* ── research paper ── */
.research-paper { max-width: 700px; }

.paper-header {
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.paper-tag {
    display: inline-block;
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: var(--olive-lt);
    border: 1px solid var(--olive);
    padding: 2px 10px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.paper-header h1 {
    font-family: var(--font-head);
    font-size: 2rem;
    color: var(--cream);
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.paper-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.paper-status {
    color: var(--olive-lt);
    border: 1px solid var(--border);
    padding: 2px 8px;
    font-size: 0.75rem;
}

.paper-abstract {
    background-color: var(--bg2);
    border-left: 3px solid var(--olive);
    padding: 16px 20px;
    color: var(--cream);
    font-size: 0.85rem;
    line-height: 1.8;
}


/* ── contact ── */
.contact-form {
    max-width: 600px;
    margin-top: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    color: var(--olive-lt);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background-color: var(--bg2);
    color: var(--cream);
    border: 1px solid var(--border);
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--olive);
}

.btn-submit {
    background-color: transparent;
    color: var(--olive-lt);
    border: 1px solid var(--olive);
    padding: 10px 30px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-submit:hover {
    background-color: var(--olive);
    color: var(--bg);
}

.form-success {
    color: var(--olive-lt);
    border: 1px solid var(--olive);
    padding: 12px 20px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.form-error {
    color: #cc4444;
    border: 1px solid #cc4444;
    padding: 12px 20px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    letter-spacing: 1px;
}