:root {
    --color-primary: #1F4A2C;
    --color-primary-dark: #163620;
    --color-accent: #B08B3E;
    --color-ink: #24301F;
    --color-muted: #6B6558;
    --color-bg: #EDE7DB;
    --color-card: #FAF7F0;
    --color-border: #DDD5C4;
    --radius: 10px;
    --shadow: 0 6px 24px rgba(31, 74, 44, 0.08);
    --font-display: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--color-ink);
    background: var(--color-bg);
    line-height: 1.6;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
    background: var(--color-primary);
    border-bottom: none;
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.logo { font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; color: #fff; }
.logo:hover { text-decoration: none; }
.main-nav a {
    color: rgba(255,255,255,0.85);
    margin-left: 22px;
    font-weight: 500;
    font-size: 0.95rem;
}
.main-nav a:hover, .main-nav a.active { color: #fff; text-decoration: underline; }

/* Nav dropdown (Order Forms) */
.main-nav { display: flex; align-items: center; }
.nav-dropdown { position: relative; display: inline-block; margin-left: 22px; }
.nav-dropdown-toggle {
    background: none; border: none; cursor: pointer; font-family: inherit;
    color: rgba(255,255,255,0.85); font-weight: 500; font-size: 0.95rem; padding: 0;
    display: flex; align-items: center; gap: 4px;
}
.nav-dropdown-toggle:hover, .nav-dropdown-toggle.active { color: #fff; }
.nav-caret { font-size: 0.7rem; margin-top: 1px; }
.nav-dropdown-menu {
    display: none; position: absolute; top: 100%; left: 0; margin-top: 14px;
    background: var(--color-card); border: 1px solid var(--color-border); border-radius: 8px;
    box-shadow: var(--shadow); min-width: 180px; padding: 6px; z-index: 20;
}
.nav-dropdown.open .nav-dropdown-menu, .nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
    display: block; padding: 8px 12px; border-radius: 6px; color: var(--color-ink);
    font-size: 0.92rem; font-weight: 500;
}
.nav-dropdown-menu a:hover { background: var(--color-bg); color: var(--color-primary); text-decoration: none; }
.nav-dropdown-empty { display: block; padding: 8px 12px; color: var(--color-muted); font-size: 0.85rem; }

/* Hero */
.hero {
    padding: 72px 0 56px;
    text-align: center;
}
.hero h1 { font-family: var(--font-display); font-weight: 600; font-size: 2.6rem; margin-bottom: 12px; letter-spacing: -0.01em; }
.hero p { color: var(--color-muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto 28px; }

.btn {
    display: inline-block;
    padding: 12px 26px;
    border-radius: 8px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 0.98rem;
}
.btn:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-secondary { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-secondary:hover { background: #E9E2D2; }

/* Cards / grid */
.section { padding: 48px 0; }
.section h2 { font-family: var(--font-display); font-weight: 600; font-size: 1.9rem; margin-bottom: 8px; }
.section .lead { color: var(--color-muted); margin-bottom: 32px; max-width: 700px; }

.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}
.card h3 { font-family: var(--font-display); font-weight: 600; margin-top: 0; }
.card img { width: 100%; border-radius: 6px; margin-bottom: 12px; object-fit: cover; aspect-ratio: 4/3; }

/* Tabs (order vs generator) */
.tabs { display: flex; gap: 8px; margin-bottom: 28px; border-bottom: 1px solid var(--color-border); }
.tab-btn {
    padding: 12px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-muted);
}
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Forms */
.form-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    max-width: 640px;
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
}
.form-group textarea { min-height: 110px; resize: vertical; }
.captcha-group { background: #f2f4fa; padding: 14px; border-radius: 8px; }
.form-note { font-size: 0.85rem; color: var(--color-muted); margin-top: 4px; }

.alert { padding: 14px 18px; border-radius: 8px; margin-bottom: 20px; }
.alert-success { background: #e6f7ec; color: #146c34; border: 1px solid #b7e6c6; }
.alert-error { background: #fdeaea; color: #a4222a; border: 1px solid #f3c2c5; }

/* Payment method chooser */
.payment-methods { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; margin-bottom: 10px; }
.payment-methods label {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
}
.payment-methods input { display: none; }
.payment-methods input:checked + span { color: var(--color-primary); }
.payment-methods label:has(input:checked) { border-color: var(--color-accent); background: #fbf3e3; }
.payment-detail-box { background: #fbf3e3; border-radius: 8px; padding: 16px; margin-top: 10px; }

.crypto-network-list { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
.crypto-network-option {
    display: flex; gap: 12px; align-items: flex-start; background: #fff; border: 1px solid var(--color-border);
    border-radius: 8px; padding: 12px; cursor: pointer; font-weight: 400;
}
.crypto-network-option input[type="radio"] { width: auto; margin-top: 4px; }
.crypto-network-option:has(input:checked) { border-color: var(--color-accent); box-shadow: 0 0 0 1px var(--color-accent); }
.crypto-network-info { flex: 1; min-width: 0; }
.crypto-network-name { font-weight: 700; font-size: 0.9rem; display: block; margin-bottom: 6px; }
.crypto-address-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.crypto-address {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.82rem;
    background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 6px;
    padding: 6px 10px; word-break: break-all; flex: 1; min-width: 160px;
}
.btn-copy {
    background: var(--color-primary); color: #fff; border: none; border-radius: 6px;
    padding: 6px 12px; font-size: 0.8rem; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.btn-copy:hover { background: var(--color-primary-dark); }
.btn-copy.copied { background: #2f8f4e; }
.crypto-qr-toggle {
    background: none; border: 1px solid var(--color-border); border-radius: 6px; padding: 6px 12px;
    font-size: 0.8rem; font-weight: 600; cursor: pointer; color: var(--color-muted); white-space: nowrap;
}
.crypto-qr-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }
.crypto-qr-wrap { margin-top: 10px; display: none; }
.crypto-qr-wrap.open { display: block; }
.crypto-qr-wrap img { width: 130px; height: 130px; border-radius: 6px; border: 1px solid var(--color-border); background: #fff; padding: 6px; }

/* Samples gallery */
.gallery-filters { margin-bottom: 24px; }
.gallery-filters button {
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    background: #fff;
    border-radius: 20px;
    margin-right: 8px;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 600;
}
.gallery-filters button.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.gallery-item { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--color-border); background: #fff; }
.gallery-item img { width: 100%; display: block; aspect-ratio: 4/3; object-fit: cover; }
.gallery-item .caption { padding: 12px 14px; font-size: 0.9rem; font-weight: 600; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--color-border); padding: 18px 0; }
.faq-item h3 { margin: 0 0 8px; font-size: 1.05rem; }
.faq-item p { color: var(--color-muted); margin: 0; }

/* Printable document (generator output) */
.doc-preview {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto 24px;
    box-shadow: var(--shadow);
}
.doc-actions { text-align: center; margin-bottom: 40px; }

@media print {
    .site-header, .site-footer, .doc-actions { display: none !important; }
    body { background: #fff; }
    .doc-preview { box-shadow: none; border: none; padding: 0; }
}

/* Footer */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.75);
    padding: 40px 0;
    margin-top: 64px;
}
.footer-inner { text-align: center; }
.site-footer a { color: #dfe2ee; }
.footer-nav { margin-top: 14px; }
.footer-nav a { margin: 0 10px; }

@media (max-width: 860px) {
    .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .main-nav { display: none; }
}
@media (max-width: 560px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.8rem; }
}