/* ===========================
   BLOG STYLES — lyttek.org
   Design System v4
=========================== */
:root {
    --bg:             #0d0b14;
    --bg-elevated:    #120f1e;
    --bg-card:        #1a1628;
    --card-black:     #0a0812;
    --purple-deep:    #1a0a3d;
    --purple-mid:     #4b2d8f;
    --purple-bright:  #7c4fd4;
    --purple-glow:    #9d6ef0;
    --purple-light:   #c4a8ff;
    --accent:         #e8a838;
    --accent-dim:     rgba(232,168,56,0.12);
    --card-border:    rgba(124,79,212,0.25);
    --border-subtle:  #1e1a35;
    --text-primary:   #f0ecff;
    --text-secondary: #c4bde8;
    --text-muted:     #7a6fa8;
    --font-display:   'Cormorant Garamond', Georgia, serif;
    --font-ui:        'Syne', sans-serif;
    --font-mono:      'JetBrains Mono', monospace;
    --ease:           0.35s cubic-bezier(0.4,0,0.2,1);
    --content-width:  720px;
    --grad-sunrise:   linear-gradient(135deg, #ff6b6b 0%, #ff9a3c 40%, #e8a838 80%, #f7d06a 100%);
    --grad-timeline:  linear-gradient(135deg, #c4a8ff 0%, #e8a838 100%);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-ui);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Grain */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 999;
}

a { color: inherit; text-decoration: none; }

/* ===========================
   NAV
=========================== */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 1.5rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color var(--ease);
}

.nav-links a:hover,
.nav-links a.active { color: var(--purple-light); }

.nav-cta {
    padding: 0.45rem 1.2rem !important;
    border: 1px solid rgba(124,79,212,0.3) !important;
    color: var(--purple-light) !important;
    transition: all var(--ease) !important;
}

.nav-cta:hover {
    border-color: var(--purple-glow) !important;
    box-shadow: 0 0 16px rgba(124,79,212,0.25) !important;
    color: #fff !important;
}

/* ===========================
   SHARED LABEL / HEADING UTIL
=========================== */
.s-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    margin-bottom: 0.6rem;
}

/* ===========================
   BLOG INDEX HERO
=========================== */
.blog-hero {
    padding: 10rem 4rem 5rem;
    max-width: 1200px;
    margin: 0 auto;
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}

/* Subtle glow behind hero */
.blog-hero::before {
    content: '';
    position: absolute;
    top: 50%; right: 0;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124,79,212,0.1) 0%, transparent 65%);
    transform: translateY(-50%);
    pointer-events: none;
}

.blog-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 6rem);
    font-weight: 300;
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 1.4rem;
    color: var(--text-primary);
}

.blog-hero h1 em {
    font-style: italic;
    background: var(--grad-timeline);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-hero p {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.65;
}

/* ===========================
   EPISODE / ARTICLE GRID
=========================== */
.episode-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 4rem 8rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-subtle);
}

.episode-card {
    padding: 2.5rem;
    background: var(--card-black);
    transition: background var(--ease);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* Gold sweep line on hover — consistent with Projekte */
.episode-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: linear-gradient(90deg, var(--accent), rgba(232,168,56,0.2));
    box-shadow: 0 0 8px rgba(232,168,56,0.3);
    transition: width 0.5s ease;
}

.episode-card:hover::after { width: 100%; }
.episode-card:hover { background: var(--bg-card); }

.ep-num {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 300;
    line-height: 1;
    margin-bottom: 0.8rem;
    background: linear-gradient(160deg, var(--purple-mid) 0%, var(--purple-light) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    transition: opacity var(--ease);
}

.ep-label {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.6rem;
}

.episode-card h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: 0.8rem;
    flex-grow: 1;
    background: var(--grad-timeline);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    width: 100%;
}

.episode-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 1.5rem;
    -webkit-text-fill-color: initial;
}

.ep-link {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: color var(--ease), gap var(--ease);
    -webkit-text-fill-color: initial;
}

.episode-card:hover .ep-link {
    color: var(--accent);
    gap: 0.8rem;
}

/* ===========================
   ARTICLE HEADER
=========================== */
.article-header {
    padding: 9rem 4rem 1.8rem;
    max-width: var(--content-width);
    margin: 0 auto;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.meta-series {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.meta-sep {
    width: 1px;
    height: 0.9rem;
    background: var(--card-border);
}

.meta-ep {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.article-header h1 {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 2.8vw, 2.6rem);
    font-weight: 300;
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.15em;
    background: var(--grad-timeline);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.article-rule {
    width: 3rem;
    height: 1px;
    background: linear-gradient(90deg, var(--purple-bright), var(--accent));
    box-shadow: 0 0 6px rgba(124,79,212,0.3);
}

/* ===========================
   ARTICLE BODY
   Lesbarkeit hat Vorrang
=========================== */
.article-body {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 2.5rem 4rem 3rem;
}

.article-body p {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: 1.85rem;
    font-weight: 300;
    line-height: 1.15;
    margin: 3.5rem 0 1rem;
    letter-spacing: -0.01em;
    background: var(--grad-timeline);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

/* Source / citation note */
.source-note {
    font-family: var(--font-mono) !important;
    font-size: 0.7rem !important;
    letter-spacing: 0.06em;
    color: var(--text-muted) !important;
    line-height: 1.6 !important;
    margin-bottom: 2rem !important;
    padding: 0.8rem 1.2rem;
    border-left: 1px solid var(--card-border);
    background: var(--card-black);
    -webkit-text-fill-color: initial !important;
}

.source-note a {
    color: var(--purple-light);
    border: none !important;
    -webkit-text-fill-color: initial;
}

/* Code block */
.article-body pre {
    background: var(--card-black);
    border: 1px solid var(--card-border);
    padding: 1.4rem 1.8rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    border-left: 2px solid var(--purple-bright);
}

.article-body pre code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: none;
    border: none;
    padding: 0;
    line-height: 1.7;
    -webkit-text-fill-color: initial;
}

/* ===========================
   BLOG INDEX — SERIES HEADER
=========================== */
.series-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3.5rem 4rem 0;
    border-top: 1px solid var(--border-subtle);
}

.series-header h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 300;
    line-height: 1;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    display: block;
}

.series-header h2 em {
    font-style: italic;
    background: var(--grad-timeline);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.series-header p {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.65;
    margin-bottom: 2.5rem;
}

.article-body strong {
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
    font-weight: 400;
}

.article-body em { font-style: italic; }

.article-body a {
    color: var(--purple-light);
    border-bottom: 1px solid rgba(196,168,255,0.25);
    transition: color var(--ease), border-color var(--ease);
    -webkit-text-fill-color: initial;
}

.article-body a:hover {
    color: var(--accent);
    border-color: rgba(232,168,56,0.4);
}

.article-body code {
    font-family: var(--font-mono);
    font-size: 0.82em;
    background: var(--card-black);
    border: 1px solid var(--card-border);
    padding: 0.1em 0.45em;
    color: var(--purple-light);
}

.article-body hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, var(--purple-bright), transparent);
    margin: 3rem 0;
    opacity: 0.3;
}

.article-body ul, .article-body ol {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.article-body li {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 0.4rem;
}

/* Opening paragraph — slightly larger */
.intro-text {
    font-size: 1.3rem !important;
    color: #ffffff !important;
    line-height: 1.7 !important;
    -webkit-text-fill-color: initial !important;
}

/* Blockquote */
.article-body blockquote {
    border-left: 2px solid var(--purple-bright);
    padding: 0.8rem 1.5rem;
    margin: 2rem 0;
    background: var(--card-black);
}

.article-body blockquote p {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Author signature */
.article-sig {
    margin-top: 3.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.article-sig p {
    font-family: var(--font-mono) !important;
    font-size: 0.68rem !important;
    letter-spacing: 0.08em;
    color: var(--text-muted) !important;
    line-height: 1.7 !important;
    margin-bottom: 0.3rem !important;
    -webkit-text-fill-color: initial !important;
}

.article-sig a {
    color: var(--accent);
    border: none !important;
    -webkit-text-fill-color: initial;
}

/* ===========================
   SERIES NAVIGATION — minimal
=========================== */
.series-nav {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 1.5rem 4rem 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    position: relative;
}

.series-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 1px;
    background: var(--border-subtle);
}

.series-nav-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: opacity var(--ease);
}

.series-nav-item:hover { opacity: 0.75; }
.series-nav-item.next { text-align: right; }
.series-nav-item.prev { text-align: left; }

.snav-dir {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.snav-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--text-primary);
    line-height: 1.25;
    -webkit-text-fill-color: initial;
}

/* ===========================
   FOOTER
=========================== */
footer {
    padding: 2rem 4rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 0.67rem;
    letter-spacing: 0.09em;
    background: var(--grad-sunrise);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    font-family: var(--font-mono);
    font-size: 0.67rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    transition: color var(--ease);
}

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

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 960px) {
    nav { padding: 1.4rem 1.8rem; }
    .nav-links { display: none; }
    .blog-hero { padding: 8rem 1.8rem 3rem; }
    .article-header { padding: 8rem 1.8rem 3rem; }
    .article-body { padding: 2rem 1.8rem 5rem; }
    .series-nav { padding-left: 1.8rem; padding-right: 1.8rem; }
    .episode-grid { grid-template-columns: 1fr; padding: 3rem 1.8rem 5rem; }
    footer { padding: 2rem 1.8rem; flex-direction: column; gap: 1rem; text-align: center; }
}