/* Umbra web. Same class vocabulary as the Lunera site so pages port both ways,
   with the palette from docs/02-design-system.md and a dark theme, because a
   site about photophobia that glows white at night would be a bad joke. */

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

html {
    width: 100%;
    scroll-padding-top: 80px;
    scroll-behavior: smooth;
    color-scheme: light dark;
}

:root {
    --background: #F6F5F8;
    --surface: #FFFFFF;
    --surface-elevated: #EFEDF3;
    --text-dark: #1C1A22;
    --text-secondary: #453F51;
    --text-light: #6B6674;
    --border: #E3E0EA;
    --accent: #4A3AA7;
    --accent-soft: #E9E7F4;
    --on-accent: #FFFFFF;
    --hero-ground: #211C3D;
    --hero-ground-edge: #100D22;
    --hero-ink: #EDEBF2;
    --hero-ink-soft: #C7C2D2;
    --hero-accent: #9085E9;
    --header-bg: rgba(246, 245, 248, 0.82);
    --shadow: 0 1px 2px rgba(28, 26, 34, 0.04), 0 8px 24px rgba(28, 26, 34, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #141318;
        --surface: #1E1C25;
        --surface-elevated: #26232F;
        --text-dark: #EDEBF2;
        --text-secondary: #C7C2D2;
        --text-light: #9C96A8;
        --border: #322E3C;
        --accent: #9085E9;
        --accent-soft: #332F48;
        --on-accent: #141318;
        --header-bg: rgba(20, 19, 24, 0.82);
        --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    background: var(--background);
    line-height: 1.6;
    width: 100%;
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
}

/* Header */
header {
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    width: 100%;
}

header nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
}

.app-icon {
    width: 40px;
    height: 40px;
    border-radius: 9px;
}

.logo {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--accent);
}

.nav-cta a {
    background: var(--accent);
    color: var(--on-accent) !important;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-weight: 600;
}

/* Hero */
.hero {
    background: radial-gradient(ellipse 80% 90% at 30% 40%, var(--hero-ground), var(--hero-ground-edge));
    color: var(--hero-ink);
    text-align: center;
    padding: 5rem 2rem 4rem;
}

.hero-inner {
    max-width: 820px;
    margin: 0 auto;
}

.hero-mark {
    width: 84px;
    height: 84px;
    margin: 0 auto 1.75rem;
    display: block;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--hero-ink-soft);
    max-width: 680px;
    margin: 0 auto 1.75rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 2rem;
}

.hero-badge {
    background: rgba(144, 133, 233, 0.14);
    border: 1px solid rgba(144, 133, 233, 0.35);
    color: var(--hero-ink);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.9rem;
}

.coming-soon {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--hero-accent);
    color: #141318;
    font-weight: 600;
    padding: 0.75rem 1.4rem;
    border-radius: 999px;
    font-size: 1rem;
}

.hero-note {
    font-size: 0.9rem !important;
    color: var(--hero-ink-soft);
    margin-top: 1rem !important;
}

/* Sections */
main section {
    padding: 4.5rem 2rem;
}

.section-title {
    font-size: clamp(1.7rem, 3.5vw, 2.25rem);
    letter-spacing: -0.02em;
    line-height: 1.15;
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto 2.5rem;
    font-size: 1.05rem;
}

.how-container,
.faq-container,
.download-container,
.pillars-container {
    max-width: 1080px;
    margin: 0 auto;
}

/* How it works */
.how-it-works {
    background: var(--surface);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.step-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.6rem;
}

.step-number {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 1rem;
}

.step-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.98rem;
}

/* Free and Pro */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.plan-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.plan-card.pro {
    border-color: var(--accent);
}

.plan-card h3 {
    font-size: 1.35rem;
    letter-spacing: -0.01em;
}

.plan-price {
    color: var(--text-light);
    margin: 0.25rem 0 1.25rem;
    font-size: 0.98rem;
}

.plan-card ul {
    list-style: none;
}

.plan-card li {
    padding: 0.45rem 0 0.45rem 1.6rem;
    position: relative;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

.plan-card li:first-child {
    border-top: none;
}

.plan-card li::before {
    content: "";
    position: absolute;
    left: 0.15rem;
    top: 0.95rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.plan-card li strong {
    color: var(--text-dark);
}

.plans-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    max-width: 640px;
    margin: 1.75rem auto 0;
}

/* Rules and privacy pillars */
.pillars {
    background: var(--surface);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.pillar {
    padding: 1.5rem;
    border-radius: 18px;
    background: var(--background);
    border: 1px solid var(--border);
}

.pillar h3 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

.pillar p {
    color: var(--text-secondary);
    font-size: 0.97rem;
}

.rules-list {
    max-width: 720px;
    margin: 2rem auto 0;
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.rules-list li {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1rem 1.25rem;
    color: var(--text-secondary);
}

.rules-list li strong {
    color: var(--text-dark);
    display: block;
    margin-bottom: 0.15rem;
}

/* Download */
.download-section {
    background: var(--background);
    text-align: center;
}

.download-container h2 {
    font-size: clamp(1.7rem, 3.5vw, 2.25rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.download-container > p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 1.75rem;
}

.download-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    max-width: 760px;
    margin: 2.25rem auto 0;
}

.download-fact {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.download-fact strong {
    font-size: 1.15rem;
    letter-spacing: -0.01em;
}

.download-fact span {
    color: var(--text-light);
    font-size: 0.88rem;
}

/* FAQ */
.faq-section {
    background: var(--surface);
}

.faq-container {
    max-width: 760px;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 0.35rem 0;
}

.faq-item summary {
    cursor: pointer;
    font-weight: 600;
    padding: 0.9rem 0;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    color: var(--accent);
    font-size: 1.3rem;
    font-weight: 400;
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    content: "\2212";
}

.faq-answer {
    padding: 0 0 1.1rem;
    color: var(--text-secondary);
}

.faq-answer p + p {
    margin-top: 0.6rem;
}

/* CTA */
.cta-banner {
    background: radial-gradient(ellipse 80% 90% at 30% 40%, var(--hero-ground), var(--hero-ground-edge));
    color: var(--hero-ink);
    text-align: center;
}

.cta-banner h2 {
    font-size: clamp(1.7rem, 3.5vw, 2.25rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.cta-banner > p {
    color: var(--hero-ink-soft);
    max-width: 600px;
    margin: 0 auto 1.75rem;
}

.cta-note {
    font-size: 0.9rem;
    margin-top: 1.25rem;
}

/* Footer */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 3rem 2rem 2rem;
    color: var(--text-light);
    font-size: 0.92rem;
}

.footer-columns {
    max-width: 1080px;
    margin: 0 auto 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.footer-col h4 {
    color: var(--text-dark);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

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

.footer-col li {
    margin-bottom: 0.4rem;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-tagline {
    max-width: 380px;
}

.footer-disclaimer {
    max-width: 1080px;
    margin: 0 auto 1.5rem;
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
}

.footer-content {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer p a {
    color: var(--text-secondary);
}

/* Article and legal pages */
.article-container,
.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 3rem 2rem 4rem;
}

.article-container h1,
.container h1 {
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}

.article-container h2,
.container h2 {
    font-size: 1.45rem;
    letter-spacing: -0.01em;
    margin: 2.25rem 0 0.75rem;
}

.article-container h3,
.container h3 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.5rem;
}

.article-container p,
.container p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.article-container ul,
.article-container ol,
.container ul,
.container ol {
    margin: 0 0 1rem 1.4rem;
    color: var(--text-secondary);
}

.article-container li,
.container li {
    margin-bottom: 0.35rem;
}

.article-lead {
    font-size: 1.2rem;
    color: var(--text-dark) !important;
}

.breadcrumbs {
    font-size: 0.88rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.breadcrumbs a {
    color: var(--text-light);
    text-decoration: none;
}

.last-updated {
    color: var(--text-light) !important;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.highlight {
    background: var(--accent-soft);
    border-left: 4px solid var(--accent);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
}

.highlight p:last-child {
    margin-bottom: 0;
}

.about-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.about-avatar {
    width: 108px;
    height: 108px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.about-role {
    color: var(--text-light) !important;
    margin: 0 !important;
}

.about-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.about-fact {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
}

.about-fact strong {
    font-size: 1.1rem;
}

.about-fact span {
    color: var(--text-light);
    font-size: 0.86rem;
}

.article-cta {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2rem;
    text-align: center;
    margin: 2.5rem 0;
}

.article-cta h2 {
    margin-top: 0;
}

.related-guides ul {
    list-style: none;
    margin-left: 0;
}

.related-guides li {
    border-top: 1px solid var(--border);
    padding: 0.6rem 0;
}

.related-guides li:last-child {
    border-bottom: 1px solid var(--border);
}

.medical-note {
    font-size: 0.88rem;
    color: var(--text-light) !important;
    border-top: 1px solid var(--border);
    padding-top: 1.25rem;
    margin-top: 2rem;
}

/* Support page */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0 2rem;
}

.support-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.25rem;
}

.support-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
}

.support-card p {
    margin: 0;
    font-size: 0.95rem;
}

.button {
    display: inline-block;
    background: var(--accent);
    color: var(--on-accent);
    text-decoration: none;
    font-weight: 600;
    padding: 0.7rem 1.3rem;
    border-radius: 999px;
}

/* 404 */
.not-found {
    text-align: center;
    padding: 6rem 2rem;
    max-width: 640px;
    margin: 0 auto;
}

.not-found h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.not-found p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 860px) {
    .footer-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    header nav {
        padding: 0.75rem 1.25rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .mobile-hide {
        display: none;
    }

    .hero {
        padding: 3.5rem 1.25rem 3rem;
    }

    main section {
        padding: 3.25rem 1.25rem;
    }

    .article-container,
    .container {
        padding: 2rem 1.25rem 3rem;
    }

    footer {
        padding: 2.5rem 1.25rem 1.5rem;
    }

    .about-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 520px) {
    .nav-links li:not(.nav-cta) {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}