/*
 * hgaladima.com — portfolio + blog styles
 *
 * Palette coordinated with ztchi.hgaladima.com (shared primary), with a warm
 * secondary for portfolio-specific accents. Dark mode follows OS preference.
 */

:root {
    --accent: #1976d2;
    --accent-hover: #155fa0;
    --warm: #c77d11;
    --warm-hover: #a66609;
    --bg: #ffffff;
    --bg-muted: #f6f7f9;
    --bg-card: #ffffff;
    --border: #e2e5ea;
    --border-strong: #cfd4db;
    --text: #1b2130;
    --text-muted: #5a6476;
    --shadow-sm: 0 1px 2px rgba(27, 33, 48, 0.05);
    --shadow-md: 0 4px 14px rgba(27, 33, 48, 0.08);
    --max-width: 760px;
    --max-width-wide: 1080px;
    --radius: 10px;
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --accent: #64b5f6;
        --accent-hover: #90caf9;
        --warm: #e09940;
        --warm-hover: #f0ad58;
        --bg: #0f141d;
        --bg-muted: #171e2a;
        --bg-card: #1a2230;
        --border: #2a3140;
        --border-strong: #3a4352;
        --text: #e6e9ef;
        --text-muted: #9ba3b2;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
    }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 120ms, border-color 120ms;
}

a:hover { color: var(--accent-hover); border-bottom-color: currentColor; }

h1, h2, h3, h4 {
    line-height: 1.25;
    margin: 2.2rem 0 0.8rem;
    color: var(--text);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.25rem; }

p { margin: 0.9rem 0; }

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

code, pre {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

pre {
    background: var(--bg-muted);
    padding: 1rem;
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

blockquote {
    border-left: 3px solid var(--warm);
    margin: 1.5rem 0;
    padding: 0.25rem 1rem;
    color: var(--text-muted);
    font-style: italic;
}

img { max-width: 100%; height: auto; }

/* Header / nav */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.site-header-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-brand {
    color: var(--text);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    border-bottom: none;
}

.site-brand:hover { color: var(--accent); }

.site-nav-list {
    list-style: none;
    display: flex;
    gap: 1.4rem;
    margin: 0;
    padding: 0;
}

.site-nav-list a {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    border-bottom: none;
}

.site-nav-list a:hover,
.site-nav-list a.active {
    color: var(--accent);
}

.site-nav-list a.active {
    font-weight: 600;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.4rem 0.7rem;
    border-radius: var(--radius);
    cursor: pointer;
    font: inherit;
}

@media (max-width: 720px) {
    .nav-toggle { display: inline-flex; gap: 0.4rem; align-items: center; }
    .site-nav-list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        right: 1rem;
        background: var(--bg-card);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        border-radius: var(--radius);
        padding: 1rem 1.2rem;
        gap: 0.8rem;
    }
    .site-nav-list.open { display: flex; }
}

/* Main content */

.site-main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 1.5rem 5rem;
}

.site-main > h1:first-child,
.site-main > article:first-child > h1:first-child {
    margin-top: 0;
}

/* Hero */

.hero {
    background: linear-gradient(135deg, var(--bg) 0%, var(--bg-muted) 100%);
    padding: 3.5rem 1.5rem 3rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
}

.hero-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (max-width: 640px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 1.5rem; }
}

.hero-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 3px solid var(--warm);
    background: var(--bg-muted);
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.hero-kicker {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--warm);
    margin: 0 0 0.4rem;
    font-weight: 600;
}

.hero-name {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.3rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero-role {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin: 0 0 1rem;
}

.hero-tagline {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
    max-width: 55ch;
}

.hero-actions {
    display: flex;
    gap: 0.7rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) { .hero-actions { justify-content: center; } }

/* Buttons */

.button {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    transition: background 120ms, border-color 120ms;
    border-bottom: 1px solid transparent;
}

.button-primary {
    background: var(--accent);
    color: #fff;
}

.button-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    border-bottom-color: transparent;
}

.button-secondary {
    background: var(--warm);
    color: #fff;
}

.button-secondary:hover {
    background: var(--warm-hover);
    color: #fff;
    border-bottom-color: transparent;
}

.button-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
}

.button-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Cards (home page) */

.cards {
    padding: 0 1.5rem;
    margin-bottom: 3rem;
}

.cards-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.4rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform 120ms, box-shadow 120ms;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-title {
    margin-top: 0;
    margin-bottom: 0.4rem;
    font-size: 1.2rem;
}

.card-title a {
    color: var(--text);
    border-bottom: none;
}

.card-title a:hover { color: var(--accent); }

.card-description {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Section blocks */

.section-recent {
    padding: 0 1.5rem;
    margin-bottom: 3rem;
}

.section-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
}

.section-title {
    margin-top: 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--warm);
    display: inline-block;
}

.post-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.post-list-item {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.post-list-item:last-child { border-bottom: none; }

.post-list-item a {
    display: block;
    border-bottom: none;
    color: var(--text);
}

.post-list-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.25rem;
}

.post-list-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--accent);
}

.post-list-summary {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0.3rem 0 0;
}

.link-more { font-weight: 500; }

/* Blog / post */

.post-header { margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }

.post-kicker {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--warm);
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.post-title {
    margin: 0 0 0.5rem;
    font-size: 2rem;
    line-height: 1.2;
}

.post-meta {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0.3rem 0;
}

.post-tags { display: inline; }

.post-tag {
    color: var(--warm);
    font-weight: 500;
    margin-right: 0.3rem;
}

.post-summary {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-top: 0.8rem;
    font-style: italic;
}

.post-body h2 { margin-top: 2.2rem; }

.post-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
}

/* Blog index */

.post-index-header { margin-bottom: 2.5rem; }
.post-index-kicker { color: var(--text-muted); font-size: 1.05rem; max-width: 55ch; }

.post-index-list { list-style: none; padding: 0; margin: 0; }

.post-index-item { border-bottom: 1px solid var(--border); }

.post-index-link {
    display: block;
    padding: 1.4rem 0;
    color: var(--text);
    border-bottom: none;
}

.post-index-link:hover .post-index-item-title { color: var(--accent); }

.post-index-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
}

.post-index-item-title {
    margin: 0.2rem 0 0.3rem;
    font-size: 1.3rem;
    transition: color 120ms;
}

.post-index-summary { margin: 0.2rem 0 0.3rem; color: var(--text-muted); }

.post-index-tags { margin: 0.4rem 0 0; font-size: 0.85rem; }

.post-index-empty { color: var(--text-muted); padding: 1rem 0; }

/* Contact grid */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.3rem 1.5rem;
}

.contact-card h2 {
    margin-top: 0;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--warm);
}

.contact-note { font-size: 0.9rem; color: var(--text-muted); margin-top: 0.5rem; }

.contact-links { list-style: none; padding: 0; margin: 0; }
.contact-links li { padding: 0.3rem 0; font-size: 0.95rem; }

/* Research / publications */

.pub-list {
    list-style: decimal;
    padding-left: 1.5rem;
}

.pub-entry {
    padding: 0.8rem 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.95rem;
}

.pub-entry:last-child { border-bottom: none; }

.pub-title { font-weight: 500; }

.research-note { color: var(--text-muted); font-size: 0.9rem; }

/* CV */

.cv-download { margin: 1.5rem 0 0.5rem; }
.cv-updated { color: var(--text-muted); margin-bottom: 2rem; }
.cv-footer-note { color: var(--text-muted); font-size: 0.95rem; }

/* Footer */

.site-footer {
    background: var(--bg-muted);
    border-top: 1px solid var(--border);
    padding: 2.5rem 1.5rem 3rem;
    margin-top: 4rem;
}

.site-footer-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: space-between;
}

.site-footer-identity {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.site-footer-nav { font-size: 0.9rem; }
.site-footer-nav-title {
    font-weight: 600;
    margin: 0 0 0.4rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
}

.site-footer-nav ul { list-style: none; padding: 0; margin: 0; }
.site-footer-nav li { padding: 0.15rem 0; }

/* Accessibility: focus styles */

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Skip link — add to base.njk if needed */

.skip-link {
    position: absolute;
    left: -1000px;
    top: 0;
    background: var(--accent);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 0 0 var(--radius) 0;
    z-index: 100;
}

.skip-link:focus { left: 0; }