@font-face {
    font-family: 'Merriweather';
    src: url('/static/fonts/merriweather-regular.woff2') format('woff2');
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: 'Merriweather';
    src: url('/static/fonts/merriweather-bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}
@font-face {
    font-family: 'Open Sans';
    src: url('/static/fonts/opensans-regular.woff2') format('woff2');
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: 'Open Sans';
    src: url('/static/fonts/opensans-bold.woff2') format('woff2');
    font-weight: 700;
    font-display: swap;
}

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

/* Light mode (default) – warm white, inspired by original dark palette */
:root {
    --bg: #ffffff;
    --bg-alt: #faf8f5;
    --text: #2d2d2d;
    --text-muted: #717171;
    --accent: #9a8b6c;
    --accent-muted: #b0a48e;
    --btn-bg: #9a8b6c;
    --btn-text: #ffffff;
    --nav-active: #7F7B6C;
    --border: #e8e3db;
    --card-bg: #faf8f5;
    --input-bg: #f7f5f1;
    --footer-bg: #f3f0eb;
}

/* Dark mode – original katharinaruess.com colors */
[data-theme="dark"] {
    --bg: #151515;
    --bg-alt: #1a1a1a;
    --text: #f8f8f8;
    --text-muted: #717171;
    --accent: #C6B89A;
    --accent-muted: #AFA69D;
    --btn-bg: #AFA69D;
    --btn-text: #151515;
    --nav-active: #7F7B6C;
    --border: #2a2a2a;
    --card-bg: #1e1e1e;
    --input-bg: #1e1e1e;
    --footer-bg: #0e0e0e;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.7;
}

h1, h2, h3, h4 {
    font-family: 'Merriweather', serif;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--accent);
}

h5, h6 {
    font-family: 'Merriweather', serif;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 45px; }
h2 { font-size: 37px; }
h3 { font-size: 31px; }
h4 { font-size: 26px; }

p { margin-bottom: 1rem; }

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section { padding: 80px 0; }

.btn {
    display: inline-block;
    background: var(--btn-bg);
    color: var(--text);
    padding: 0.8em 2em;
    border-radius: 9999px;
    font-size: 1.1em;
    font-family: Arial, Helvetica, sans-serif;
    border: none;
    cursor: pointer;
    transition: background 0.3s ease;
    text-decoration: none;
}

.btn { color: var(--btn-text); }
.btn:hover { background: var(--accent); color: var(--bg); }

/* Hauptnav: Logo links, Menü-Pille mittig in Akzentfarbe, Theme-Toggle rechts. */
nav {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1.2rem 0;
}

/* Themen-Leiste: bleibt beim Scrollen oben am Bildschirmrand kleben (§Variante A). */
nav.themes-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    border-top: 1px solid var(--border);
    padding: 0.7rem 0;
}

nav.themes-nav .container {
    display: flex;
    justify-content: center;
    align-items: center;
}

nav.themes-nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
}

nav.themes-nav ul a {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    transition: color 0.2s, border-color 0.2s;
    padding: 0.3rem 0.2rem;
    border-bottom: 2px solid transparent;
}

nav.themes-nav ul a:hover { color: var(--text); }
nav.themes-nav ul a.active { color: var(--accent); border-bottom-color: var(--accent); }

nav .container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

nav .logo {
    position: absolute;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

nav .logo-img {
    height: 160px;
    width: auto;
}

/* Menü-Pille: nur die Liste bekommt Akzent-Hintergrund, nicht der ganze Balken. */
nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    background: var(--accent);
    padding: 0.7rem 1.6rem;
    border-radius: 8px;
    border: 1px solid var(--accent-muted);
}

/* PDF-Download-Block (Stress-Journal). */
.pdf-download {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, transform 0.2s;
}
.pdf-download:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.pdf-download img {
    width: 140px;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    flex-shrink: 0;
}
.pdf-download .pdf-meta h3 {
    margin-bottom: 0.4rem;
    font-size: 1.2rem;
}
.pdf-download .pdf-meta p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}
.pdf-download .pdf-meta .download-hint {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.85rem;
    margin-top: 0.6rem;
    display: block;
}

@media (max-width: 600px) {
    .pdf-download { flex-direction: column; text-align: center; }
}

nav .theme-toggle {
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

nav ul a {
    color: var(--bg);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.3s;
}

nav ul a:hover, nav ul a.active { color: var(--text); }

.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    position: relative;
}

.hero .container {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    padding-right: 0;
}

.hero-text {
    max-width: 300px;
    text-align: left;
}

.hero-text h1 {
    margin-bottom: 1rem;
    color: var(--accent);
    text-shadow: none;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--accent);
    margin-bottom: 2rem;
    text-shadow: none;
}

@media (max-width: 768px) {
    .hero { min-height: 60vh; }
    .hero .container { justify-content: center; }
    .hero-text { text-align: center; }
}

.section-title {
    color: var(--accent);
    text-align: center;
    margin-bottom: 3rem;
}

.image-placeholder {
    background: var(--card-bg);
    border: 2px dashed var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.card p {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.card .author {
    display: block;
    font-weight: 700;
    color: var(--accent);
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.contact-form { max-width: 600px; margin: 0 auto; }

.contact-form input,
.contact-form textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 1rem;
    border-radius: 8px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.contact-form textarea { height: 150px; resize: vertical; }

.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: var(--accent); }

footer {
    background: var(--footer-bg);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a { color: var(--text-muted); margin: 0 1rem; }
footer a:hover { color: var(--text); }

.animated-element {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animated-element.visible { opacity: 1; transform: translateY(0); }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.three-col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.dark-section { background: var(--bg-alt); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* Video consent (DSGVO 2-Klick) */
.video-consent { cursor: pointer; }
.video-placeholder {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 12px;
    overflow: hidden;
    background: var(--card-bg);
}
.video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    gap: 12px;
}
.video-overlay p {
    font-size: .85rem;
    max-width: 400px;
    color: #ddd;
}
.video-play-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    border: 2px solid #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: background 0.3s;
}
.video-consent:hover .video-play-btn {
    background: rgba(255,255,255,0.35);
}

/* Theme toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 1rem;
    transition: color 0.3s, border-color 0.3s;
    line-height: 1;
}
.theme-toggle:hover { color: var(--text); border-color: var(--accent); }
.mb-2 { margin-bottom: 2rem; }

@media (max-width: 768px) {
    h1 { font-size: 32px; }
    h2 { font-size: 26px; }
    nav ul { display: none; }
    nav.themes-nav ul { display: flex; gap: 1.2rem; }
    nav.themes-nav ul a { font-size: 0.78rem; letter-spacing: 0.04em; }
    .two-col,
    .three-col { grid-template-columns: 1fr; }
}