/* FaceChanger AI — dark / premium LP */
:root {
    --bg-deep: #0a0a0b;
    --bg-elevated: #121214;
    --bg-card: #18181b;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --text-primary: #f4f4f5;
    --text-muted: #a1a1aa;
    --text-faint: #71717a;
    --accent: #c9a962;
    --accent-soft: rgba(201, 169, 98, 0.15);
    --font-sans: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    --max-width: 720px;
    --max-prose: 640px;
}

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

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--text-primary);
    background: var(--bg-deep);
    background-image:
        radial-gradient(ellipse 120% 80% at 50% -40%, rgba(201, 169, 98, 0.12), transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 50%, rgba(80, 80, 120, 0.06), transparent 50%);
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
    color: #e4c77a;
}

a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.site-header__inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-logo {
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-primary);
}

.site-logo:hover {
    color: var(--accent);
}

.site-nav {
    display: flex;
    gap: 1.5rem;
}

.site-nav a {
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
}

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

.site-nav a.is-active {
    box-shadow: 0 1px 0 var(--accent);
}

main {
    flex: 1;
    width: 100%;
}

main .wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
}

.hero {
    text-align: center;
    padding: 2.5rem 0 3rem;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 3rem;
}

.hero__eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 1rem;
}

.hero__title {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.25;
    margin: 0 0 0.75rem;
    background: linear-gradient(180deg, #fafafa 0%, #c4c4c8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin: 0;
    max-width: var(--max-prose);
    margin-left: auto;
    margin-right: auto;
}

.hero__cta {
    margin-top: 1.75rem;
}

.btn-appstore {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--bg-deep);
    background: linear-gradient(180deg, var(--accent) 0%, #a88b4a 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: filter 0.15s ease, opacity 0.15s ease;
}

a.btn-appstore {
    color: var(--bg-deep);
}

.btn-appstore:hover {
    filter: brightness(1.08);
    color: var(--bg-deep);
}

.btn-appstore--muted {
    background: var(--bg-card);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    cursor: default;
}

.btn-appstore--muted:hover {
    filter: none;
    color: var(--text-muted);
}

.section {
    margin-bottom: 3rem;
}

.section:last-of-type {
    margin-bottom: 0;
}

.section h2 {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin: 0 0 1rem;
}

.section p {
    color: var(--text-muted);
    margin: 0 0 1rem;
    max-width: var(--max-prose);
}

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

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.5rem 1.75rem;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

.card ul {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--text-muted);
}

.card li {
    margin-bottom: 0.5rem;
}

.card li:last-child {
    margin-bottom: 0;
}

.note {
    font-size: 0.9375rem;
    color: var(--text-faint);
    border-left: 3px solid var(--accent-soft);
    padding-left: 1rem;
    margin-top: 2rem;
}

.company-intro {
    margin-bottom: 2.5rem;
}

.company-intro h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    letter-spacing: -0.02em;
}

.company-intro .lead {
    color: var(--text-muted);
    margin: 0;
    font-size: 1.0625rem;
}

.dl-grid {
    display: grid;
    gap: 0;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-card);
}

.dl-row {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

@media (max-width: 560px) {
    .dl-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
}

.dl-row:last-child {
    border-bottom: none;
}

.dl-row dt {
    margin: 0;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.dl-row dd {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.site-footer {
    margin-top: auto;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
    padding: 2rem 1.5rem;
}

.site-footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.site-footer__brand {
    font-weight: 600;
    font-size: 0.9375rem;
    margin: 0 0 0.25rem;
    color: var(--text-primary);
}

.site-footer__company {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
}

.site-footer__nav {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.site-footer__nav a {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.site-footer__nav a:hover {
    color: var(--accent);
}

.site-footer__legal {
    font-size: 0.8125rem;
    color: var(--text-faint);
    margin: 0;
}

.site-footer__legal a {
    color: var(--text-muted);
}

.site-footer__legal a:hover {
    color: var(--accent);
}