/*
Theme Name: Leon Lewis
Theme URI: https://leonrlewis.com
Author: Leon Lewis
Author URI: https://leonrlewis.com
Description: Personal blog and portfolio — dark, warm, professional.
Version: 1.1.0
*/

/* ── Variables ─────────────────────────────────────────────────────────────── */
:root {
    --bg:          #0d1b2a;
    --bg-surface:  #132336;
    --bg-elevated: #1a2e44;
    --bg-code:     #080f18;

    --border:      rgba(147, 197, 253, 0.10);
    --border-hover:rgba(147, 197, 253, 0.25);

    --text:        #e2e8f0;
    --text-muted:  #94a3b8;
    --text-subtle: #5a7490;

    --green:       #6ee7b7;
    --green-dim:   rgba(110, 231, 183, 0.12);
    --blue:        #93c5fd;
    --purple:      #c4b5fd;
    --amber:       #fcd34d;

    --link:        var(--green);
    --link-hover:  #a7f3d0;

    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
    --font-mono:  'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

    --radius:    8px;
    --radius-sm: 4px;
    --shadow:    0 4px 32px rgba(0, 0, 0, 0.4);
    --max-w:     760px;
    --max-w-wide:1380px;
    --gap:       2rem;
}

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

html {
    font-size: 17px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.7;
    min-height: 100vh;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--link-hover); }
button, input, textarea, select { font: inherit; }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--max-w-wide);
    margin: 0 auto;
    padding: 0 2.5rem;
}

.container--narrow {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Header ────────────────────────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 27, 42, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 1rem;
}

.site-logo {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.site-logo span { color: var(--green); }
.site-logo:hover { color: var(--text); }

.site-nav { display: flex; align-items: center; gap: 0.25rem; }

.site-nav a {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s, background 0.2s;
}
.site-nav a:hover,
.site-nav a.current-menu-item { color: var(--text); background: var(--bg-elevated); }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    line-height: 1;
    font-size: 1.1rem;
}

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.site-hero {
    position: relative;
    padding: 5rem 0 4rem;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.site-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1.5px 1.5px, rgba(147, 197, 253, 0.07) 1.5px, transparent 0);
    background-size: 36px 36px;
    pointer-events: none;
}

.site-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(110, 231, 183, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 20%, rgba(196, 181, 253, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 860px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 1rem;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--green);
}

.hero-name {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 3.75rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.hero-tagline {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 520px;
    line-height: 1.6;
}

.hero-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.hero-link--primary {
    background: var(--green-dim);
    color: var(--green);
    border: 1px solid rgba(110, 231, 183, 0.2);
}
.hero-link--primary:hover {
    background: rgba(110, 231, 183, 0.2);
    color: var(--green);
    border-color: rgba(110, 231, 183, 0.4);
}

.hero-link--secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.hero-link--secondary:hover {
    color: var(--text);
    border-color: var(--border-hover);
    background: var(--bg-elevated);
}

/* ── Post grid / cards ─────────────────────────────────────────────────────── */
.posts-section {
    padding: 3.5rem 0 4rem;
}

.section-heading {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.post-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

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

.post-card__meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.post-date {
    font-size: 0.78rem;
    color: var(--text-subtle);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.post-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--blue);
    border: 1px solid rgba(147, 197, 253, 0.15);
    line-height: 1.5;
}

.post-card__title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.6rem;
}

.post-card__title a {
    color: var(--text);
    transition: color 0.2s;
}
.post-card__title a:hover { color: var(--green); }

.post-card__excerpt {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
    flex: 1;
    margin-bottom: 1rem;
}

.post-card__read-more {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--green);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.2s;
}
.post-card__read-more:hover { color: var(--link-hover); gap: 0.5rem; }

/* ── Single post ───────────────────────────────────────────────────────────── */
.post-header {
    padding: 3.5rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

.post-header__meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.post-header__title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    letter-spacing: -0.015em;
    margin-bottom: 0.75rem;
}

.post-header__excerpt {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 600px;
}

/* ── Prose (post content) ──────────────────────────────────────────────────── */
.prose {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text);
    max-width: var(--max-w);
}

.prose h2, .prose h3, .prose h4 {
    font-family: var(--font-serif);
    color: var(--text);
    line-height: 1.3;
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
}
.prose h2 { font-size: 1.65rem; font-weight: 700; }
.prose h3 { font-size: 1.3rem; font-weight: 600; }
.prose h4 { font-size: 1.05rem; font-weight: 600; color: var(--text-muted); }

.prose p { margin-bottom: 1.4rem; }

.prose a {
    color: var(--green);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(110, 231, 183, 0.35);
}
.prose a:hover { text-decoration-color: var(--green); }

.prose strong { color: var(--text); font-weight: 600; }
.prose em { color: var(--text-muted); }

.prose blockquote {
    border-left: 3px solid var(--green);
    padding: 0.75rem 1.25rem;
    margin: 1.75rem 0;
    background: var(--bg-surface);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-muted);
    font-style: italic;
}

.prose ul, .prose ol { padding-left: 1.5rem; margin-bottom: 1.4rem; }
.prose li { margin-bottom: 0.4rem; }
.prose li::marker { color: var(--green); }

.prose hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

.prose img {
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin: 1.5rem auto;
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--bg-elevated);
    color: var(--purple);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.prose pre {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    margin: 1.75rem 0;
    line-height: 1.65;
}

.prose pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text);
    font-size: 0.875rem;
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.75rem 0;
    font-size: 0.9rem;
}

.prose th {
    background: var(--bg-elevated);
    color: var(--text-muted);
    font-weight: 600;
    text-align: left;
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.prose td {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    color: var(--text);
}

.prose tr:nth-child(even) td { background: var(--bg-surface); }

/* ── Post footer ───────────────────────────────────────────────────────────── */
.post-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.post-nav__item {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    transition: border-color 0.2s;
}
.post-nav__item:hover { border-color: var(--border-hover); }
.post-nav__item--next { text-align: right; }

.post-nav__label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-subtle);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.25rem;
}

.post-nav__title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.3;
}

/* ── Page / static ─────────────────────────────────────────────────────────── */
.page-header {
    padding: 3.5rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

.page-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

/* ── Archive ───────────────────────────────────────────────────────────────── */
.archive-header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

.archive-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
}

.archive-description {
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.posts-list { display: flex; flex-direction: column; gap: 1rem; }

/* ── Pagination ────────────────────────────────────────────────────────────── */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.pagination a, .pagination .current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-muted);
    transition: all 0.2s;
}
.pagination a:hover { color: var(--text); border-color: var(--border-hover); }
.pagination .current { background: var(--bg-elevated); color: var(--green); border-color: rgba(110, 231, 183, 0.25); }

/* ── 404 ───────────────────────────────────────────────────────────────────── */
.error-404 {
    padding: 6rem 0;
    text-align: center;
}
.error-404__code {
    font-family: var(--font-mono);
    font-size: 6rem;
    font-weight: 700;
    color: var(--bg-elevated);
    line-height: 1;
    margin-bottom: 1rem;
}
.error-404__title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--text);
    margin-bottom: 0.75rem;
}
.error-404__text { color: var(--text-muted); margin-bottom: 2rem; }

/* ── Footer ────────────────────────────────────────────────────────────────── */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 2.5rem 0;
    margin-top: auto;
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.site-footer__copy {
    font-size: 0.82rem;
    color: var(--text-subtle);
}
.site-footer__copy a { color: var(--text-subtle); }
.site-footer__copy a:hover { color: var(--text-muted); }

.footer-links {
    display: flex;
    gap: 1rem;
}
.footer-links a {
    font-size: 0.82rem;
    color: var(--text-subtle);
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--green); }

/* ── Utilities ─────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}
.btn:hover { color: var(--text); border-color: var(--border-hover); background: var(--bg-elevated); }
.btn--green { background: var(--green-dim); color: var(--green); border-color: rgba(110, 231, 183, 0.2); }
.btn--green:hover { background: rgba(110, 231, 183, 0.2); color: var(--green); }

/* ── Search form ───────────────────────────────────────────────────────────── */
.search-form { display: flex; gap: 0.5rem; }
.search-form input[type="search"] {
    flex: 1;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
}
.search-form input[type="search"]:focus { border-color: var(--border-hover); }
.search-form button { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.5rem 1rem; color: var(--text-muted); cursor: pointer; transition: all 0.2s; }
.search-form button:hover { color: var(--text); }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .nav-toggle { display: block; }

    .site-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--bg-surface);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 0.5rem;
        gap: 0.25rem;
    }
    .site-nav.is-open { display: flex; }
    .site-nav a { padding: 0.7rem 1rem; }

    .site-hero { padding: 3.5rem 0 2.5rem; }
    .posts-grid { grid-template-columns: 1fr; }
    .post-nav { grid-template-columns: 1fr; }
    .post-nav__item--next { text-align: left; }
    .site-footer__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .hero-links { flex-direction: column; align-items: flex-start; }
    .container, .container--narrow { padding: 0 1rem; }
}