:root { --ink: #102a43; --muted: #52606d; --paper: #f7f9fc; --white: #fff; --gold: #f4b942; --line: #d9e2ec; --seller: #6842c2; --reseller: #087f8c; --header-height: 4.5rem; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Georgia, 'Times New Roman', serif; background: var(--paper); color: var(--ink); line-height: 1.65; }
body, button, input, select, textarea { font-size: 1rem; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

body { padding-top: var(--header-height); }

/* Sticky Header */
.site-header { position: fixed;
    top: 0;
    inset-inline: 0;
    height: var(--header-height);
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    z-index: 1000;
}
.site-header a { text-decoration: none; }
.brand { font-size: 1.25rem; letter-spacing: .04em; }
.brand-mark { color: var(--gold); }
.menu-toggle { border: 1px solid var(--line); background: var(--white); padding: .5rem .65rem; cursor: pointer; }
.main-nav[hidden] { display: none; }
.nav-menu { display: grid; gap: .25rem; list-style: none; padding: 1rem; margin: 0; position: absolute; top: var(--header-height); inset-inline: 0; background: var(--white); border-bottom: 1px solid var(--line); }
.nav-link { display: block; padding: .55rem .7rem; font-weight: 700; }
.nav-link:hover, .nav-link:focus-visible { background: #eef3f7; }
.lang-picker select { min-height: 2.4rem; border: 1px solid var(--line); background: var(--white); padding: .25rem; }

/* Mobile First Layout */
.badge-seller, .badge-reseller { color: var(--white); padding: .25rem .5rem; border-radius: 3px; }
.badge-seller { background: var(--seller); }
.badge-reseller { background: var(--reseller); }
.page-shell { width: min(100% - 2rem, 72rem); margin-inline: auto; }
.hero { padding: 4rem 0 3rem; max-width: 48rem; }
.hero h1 { font-size: clamp(2.2rem, 7vw, 4.5rem); line-height: 1.08; margin: 0 0 1rem; }
.eyebrow { color: var(--seller); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.button { display: inline-block; border: 0; background: var(--ink); color: var(--white); padding: .75rem 1rem; text-decoration: none; cursor: pointer; font-weight: 700; }
.button.alt { background: var(--gold); color: var(--ink); }
.grid { display: grid; gap: 1rem; }
.card { background: var(--white); border: 1px solid var(--line); padding: 1.25rem; }
.price { font-size: 1.5rem; font-weight: 700; }
label { display: block; font-weight: 700; margin-top: 1rem; }
input, textarea { width: 100%; border: 1px solid #9fb3c8; padding: .75rem; margin-top: .35rem; background: var(--white); }
textarea { min-height: 10rem; resize: vertical; }
.notice { margin-top: 1rem; padding: 1rem; background: #e3f8f5; border-inline-start: 4px solid var(--reseller); }
footer { margin-top: 4rem; padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); }
footer nav { display: flex; flex-wrap: wrap; gap: .75rem 1rem; }
@media (min-width: 52rem) { .site-header { padding-inline: 2rem; } .menu-toggle { display: none; } #main-navigation[hidden] { display: block; } .nav-menu { position: static; display: flex; padding: 0; border: 0; } .grid.two { grid-template-columns: repeat(2, 1fr); } }

/* RTL Specific Overrides */
html[dir="rtl"] .site-header { text-align: right; }