/* AdLuna — Landing Page Styles
 * Seriös, konservativ, minimalistisch. Keine Spielereien.
 * © AdSerica Ltd., operativ AdLuna GmbH.
 */

:root {
    --bg: #F8F7F4;          /* warmes Elfenbein */
    --bg-card: #FFFFFF;
    --bg-subtle: #F1EFE9;
    --text: #111111;
    --text-muted: #5A5954;
    --text-subtle: #8C8A83;
    --border: #E8E6E0;
    --border-strong: #D1CFC6;
    --accent: #14284B;
    --accent-hover: #0A1A3A;
    --accent-subtle: #EEF0F5;

    --font-serif: "Iowan Old Style", "Palatino Linotype", "Palatino", Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Menlo", "Consolas", monospace;

    --max-content: 1080px;
    --max-reading: 680px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ────────────────────────────────────────── Typography */

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--text);
}

h1 {
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.125rem);
    margin-bottom: 1rem;
    letter-spacing: -0.015em;
}

h3 {
    font-size: clamp(1.15rem, 2vw, 1.375rem);
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text);
}

p.lead {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.6;
}

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

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

strong, b {
    font-weight: 600;
    color: var(--text);
}

em, i {
    font-style: italic;
}

blockquote {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    line-height: 1.55;
    font-style: italic;
    color: var(--text);
    padding: 0.25rem 0 0.25rem 1.5rem;
    border-left: 2px solid var(--accent);
    margin: 2rem 0;
}

/* ────────────────────────────────────────── Layout */

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

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

section {
    padding: 5rem 0;
    border-bottom: 1px solid var(--border);
}

section:last-of-type {
    border-bottom: none;
}

section.subtle {
    background: var(--bg-subtle);
}

.section-eyebrow {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin-bottom: 1rem;
    font-weight: 500;
}

/* ────────────────────────────────────────── Navigation */

.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(248, 247, 244, 0.88);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

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

.nav-brand {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text);
    border: none;
}

.nav-brand:hover {
    border: none;
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-size: 0.9375rem;
    color: var(--text-muted);
    border: none;
}

.nav-links a:hover {
    color: var(--text);
    border: none;
}

/* ────────────────────────────────────────── Hero */

.hero {
    padding: 7rem 0 6rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: -0.025em;
    max-width: 18ch;
    margin-bottom: 1.75rem;
}

.hero .subhead {
    font-family: var(--font-sans);
    font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
    line-height: 1.55;
    color: var(--text-muted);
    max-width: 52ch;
    margin-bottom: 2.5rem;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ────────────────────────────────────────── Buttons */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.3;
    border-radius: 2px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #FFFFFF;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #FFFFFF;
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border-color: var(--border-strong);
}

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    color: var(--accent);
}

/* ────────────────────────────────────────── Pillars (vier Säulen) */

.pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pillar {
    padding: 0;
}

.pillar-label {
    display: block;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.pillar h3 {
    font-family: var(--font-serif);
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.pillar p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin-bottom: 0;
}

/* ────────────────────────────────────────── Product Family */

.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: border-color 180ms ease, transform 180ms ease;
}

.product-card:hover {
    border-color: var(--border-strong);
}

.product-status {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
    padding: 0.25rem 0.625rem;
    border-radius: 2px;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.product-status.available {
    background: #E8F0E4;
    color: #2F5E2C;
}

.product-status.beta {
    background: #F0EAD8;
    color: #6B5917;
}

.product-status.soon {
    background: var(--bg-subtle);
    color: var(--text-muted);
}

.product-card h3 {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    margin-bottom: 0.5rem;
}

.product-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.55;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.product-link {
    font-size: 0.9375rem;
    color: var(--accent);
    font-weight: 500;
    border: none;
}

.product-link:hover {
    color: var(--accent-hover);
    border: none;
}

.product-link::after {
    content: " →";
    transition: margin-left 120ms ease;
}

.product-link:hover::after {
    margin-left: 2px;
}

/* ────────────────────────────────────────── Manifest section (kurz) */

.manifest-preview {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3rem;
}

.manifest-preview blockquote {
    border: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    line-height: 1.55;
    color: var(--text);
    font-style: normal;
}

.manifest-preview p {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 60ch;
}

/* ────────────────────────────────────────── Contact */

.contact {
    max-width: 680px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-subtle);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 2px;
    transition: border-color 120ms ease;
}

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

.form-group textarea {
    min-height: 160px;
    resize: vertical;
    line-height: 1.5;
}

.form-note {
    font-size: 0.8125rem;
    color: var(--text-subtle);
    margin-top: 0.5rem;
}

/* ────────────────────────────────────────── Footer */

.footer {
    background: var(--bg-subtle);
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
    margin-top: auto;
}

.footer-cols {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.footer-col h4 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
    color: var(--text-subtle);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.footer-col a {
    color: var(--text-muted);
    border: none;
}

.footer-col a:hover {
    color: var(--text);
    border: none;
}

.footer-brand {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--text-muted);
    max-width: 36ch;
    line-height: 1.55;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.8125rem;
    color: var(--text-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ────────────────────────────────────────── Responsive */

@media (max-width: 768px) {
    .nav-links { gap: 1.25rem; }
    .nav-links a:not(.nav-links a:last-child) { display: none; }
    .hero { padding: 4rem 0 3rem; }
    section { padding: 3.5rem 0; }
    .footer-cols { grid-template-columns: 1fr 1fr; }
    .manifest-preview { padding: 2rem 1.5rem; }
    .product-card { padding: 1.5rem; }
}

@media (max-width: 480px) {
    .footer-cols { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { text-align: center; }
}

/* ────────────────────────────────────────── Utility */

.only-mobile { display: none; }
.only-desktop { display: block; }

@media (max-width: 768px) {
    .only-mobile { display: block; }
    .only-desktop { display: none; }
}