:root {
    --color-amber: #eba932;
    --color-amber-dark: #b07e27;
    --color-navy: #16212e;
    --color-navy-soft: #24334a;
    --color-cream: #fbf9f3;
    --color-muted: #6b7280;
    --color-border: #e5e0d5;

    --bg: var(--color-cream);
    --bg-elevated: #ffffff;
    --text: var(--color-navy);
    --text-muted: var(--color-muted);
    --border: var(--color-border);
    --accent: var(--color-amber);
    --accent-contrast: var(--color-navy);

    --max-width: 1080px;
    --radius: 14px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f151d;
        --bg-elevated: #16212e;
        --text: #f2ede1;
        --text-muted: #9aa4b2;
        --border: #2a3547;
        --accent: var(--color-amber);
        --accent-contrast: #16212e;
    }

    .lockup-light { display: none; }
    .lockup-dark { display: inline-block; }
}

@media (prefers-color-scheme: light) {
    .lockup-dark { display: none; }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background-color 0.2s ease, color 0.2s ease;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: var(--accent-dark, var(--color-amber-dark));
}

.wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Nav */
header.site-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.site-nav .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand img {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
}

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

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

/* Hero */
.hero {
    text-align: center;
    padding: 80px 0 60px;
}

.hero .lockup {
    max-width: 420px;
    margin: 0 auto 28px;
}

.hero p.tagline {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 32px;
}

.cta-row {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    font-size: 0.98rem;
    border: 1px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--color-amber);
    color: var(--color-navy);
    box-shadow: 0 4px 14px rgba(235, 169, 50, 0.35);
}

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

/* Sections */
section {
    padding: 64px 0;
}

section.alt {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

h2.section-title {
    text-align: center;
    font-size: 1.9rem;
    margin: 0 0 8px;
}

p.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin: 0 0 40px;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 22px;
}

.feature-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
}

.feature-card h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.feature-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.94rem;
}

.feature-icon {
    font-size: 1.6rem;
    margin-bottom: 10px;
}

/* Screenshots */
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.screenshot-card {
    text-align: center;
}

.screenshot-card img {
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: 0 8px 30px rgba(22, 33, 46, 0.12);
}

.screenshot-card figcaption {
    margin-top: 12px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Download */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}

.download-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    text-align: center;
}

.download-card .os-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.download-card h3 {
    margin: 0 0 6px;
}

.download-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0 0 18px;
}

.download-card .btn {
    width: 100%;
    justify-content: center;
}

.download-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-top: 28px;
}

/* Footer */
footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
}

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

footer .footer-links {
    display: flex;
    gap: 18px;
    justify-content: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .nav-links {
        gap: 14px;
    }
    .hero {
        padding: 56px 0 40px;
    }
}