:root {
    color-scheme: light;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    --bg: #f5f6fb;
    --surface: #ffffff;
    --surface-strong: #f0f2f9;
    --card: #ffffff;
    --text: #111426;
    --muted: #5b637e;
    --muted-soft: #6b738c;
    --primary: #3e4898;
    --primary-dark: #2f3776;
    --border: rgba(62, 72, 152, 0.15);
    --shadow: 0 20px 40px rgba(17, 20, 38, 0.08);
    --radius: 18px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1120px, 92vw);
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(245, 246, 251, 0.92);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    padding: var(--space-5) 0;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.logo-mark {
    width: 40px;
    height: 40px;
    border-radius: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
}

.logo-text {
    font-size: 1.1rem;
}

.site-nav {
    justify-self: center;
    width: 100%;
}

.nav-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(10px, 1.4vw, 16px);
    flex-wrap: nowrap;
}

.nav-menu a {
    color: var(--muted);
    font-weight: 500;
    font-size: 0.95rem;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.nav-menu a:hover {
    color: var(--text);
}

.nav-cta {
    padding: 10px 18px;
    background: rgba(62, 72, 152, 0.12);
    border-radius: 999px;
    color: var(--primary);
    font-weight: 600;
}

.lang-select {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 96px;
}

.lang-select input,
.lang-select select {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 7px 10px;
    border-radius: 10px;
    font-size: 0.88rem;
}

.lang-select input {
    min-width: 180px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 999px;
}

.site-main {
    padding: var(--space-10) 0 var(--space-16);
}

.hero {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-8) 0 var(--space-16);
}

.hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    line-height: 1.1;
    margin-bottom: var(--space-4);
}

.hero p {
    color: var(--muted-soft);
    font-size: 1.05rem;
    margin-bottom: var(--space-5);
}

.hero-note {
    font-size: 0.95rem;
    color: var(--muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: var(--space-6) 0;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 14px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: transform 0.2s ease, background 0.2s ease;
}

.button-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: var(--shadow);
}

.button-primary:hover {
    background: var(--primary-dark);
}

.button-secondary {
    background: var(--surface);
    color: var(--primary);
    border-color: var(--border);
}

.button:hover {
    transform: translateY(-2px);
}

.hero-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: var(--space-7, 28px);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.hero-card ul {
    list-style: none;
    display: grid;
    gap: 14px;
    color: var(--muted-soft);
}

.hero-card li::before {
    content: '•';
    color: var(--primary);
    margin-right: 8px;
}

.section {
    margin-top: var(--space-16);
}

.section h2 {
    font-size: clamp(1.9rem, 4vw, 2.5rem);
    margin-bottom: var(--space-5);
}

.section p.lead {
    color: var(--muted-soft);
    max-width: 700px;
    margin-bottom: var(--space-8);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.card h3 {
    margin-bottom: 12px;
    font-size: 1.15rem;
}

.card p {
    color: var(--muted-soft);
}

.highlight {
    background: rgba(62, 72, 152, 0.08);
    border: 1px solid rgba(62, 72, 152, 0.18);
    border-radius: 16px;
    padding: 18px 20px;
    color: var(--muted);
}

.page-header {
    padding: 20px 0 40px;
}

.page-header h1 {
    font-size: clamp(2.1rem, 4vw, 2.9rem);
    margin-bottom: var(--space-4);
}

.page-header p {
    color: var(--muted-soft);
    max-width: 720px;
}

.list {
    display: grid;
    gap: 16px;
    margin-top: 24px;
    color: var(--muted-soft);
}

.qr-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    border: 1px dashed rgba(62, 72, 152, 0.3);
}

.qr-card img {
    margin: 0 auto 16px;
    width: 160px;
    height: 160px;
    background: #f3f4f9;
    border-radius: 14px;
    padding: 12px;
}

.faq {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.faq details {
    background: var(--card);
    border-radius: 16px;
    border: 1px solid var(--border);
    padding: 16px 20px;
    box-shadow: var(--shadow);
}

.faq summary {
    cursor: pointer;
    font-weight: 600;
}

.site-footer {
    border-top: 1px solid var(--border);
    background: #f0f2f9;
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 28px;
    align-items: start;
}

.footer-grid > div {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    margin: 0;
}

.footer-tagline {
    color: var(--muted-soft);
    margin: 0;
}

.footer-cta {
    display: grid;
    gap: 12px;
    margin-top: 4px;
}

.store-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted-soft);
    font-size: 0.9rem;
}

.store-note {
    font-size: 0.85rem;
    color: var(--muted-soft);
}

.subtle-link {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    color: inherit;
    opacity: 0.92;
    transition: opacity .2s ease;
}

.subtle-link:hover,
.subtle-link:focus-visible {
    opacity: 1;
}

.footer-grid h4 {
    margin: 0;
    font-size: 1rem;
    line-height: 1.35;
    color: var(--text);
}

.footer-grid p {
    margin: 0;
}

.footer-grid ul {
    list-style: none;
    display: grid;
    gap: 8px;
    color: var(--muted-soft);
    margin: 0;
    padding: 0;
}

.footer-grid li {
    margin: 0;
    line-height: 1.4;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    margin-top: 28px;
    padding-top: 20px;
    color: var(--muted-soft);
    font-size: 0.85rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-strong);
    color: var(--primary);
    border-radius: 999px;
    padding: 6px 12px;
    font-weight: 600;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.only-desktop {
    display: block;
}


@media (max-width: 1180px) {
    .header-inner {
        grid-template-columns: auto 1fr;
        gap: 14px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .site-nav {
        justify-self: end;
        width: auto;
    }

    .nav-menu {
        position: absolute;
        right: 4vw;
        top: 70px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 16px;
        flex-direction: column;
        gap: 12px;
        min-width: 220px;
        box-shadow: var(--shadow);
        display: none;
    }

    .nav-menu.is-open {
        display: flex;
    }

    .lang-select {
        justify-self: end;
    }
}

@media (max-width: 720px) {
    .hero {
        padding-top: 20px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .only-desktop {
        display: none;
    }
}

.hero-note:empty {
    display: none;
}