/* ============================================================
   Bandsaw Blades Store — Main Stylesheet
   ============================================================ */

:root {
  --navy: #1a3a5c;
  --navy-dark: #0f2540;
  --orange: #e07b00;
  --orange-light: #f59520;
  --grey-50: #f8f8f8;
  --grey-100: #f0f0f0;
  --grey-300: #d0d0d0;
  --grey-500: #888;
  --grey-700: #444;
  --text: #222;
  --white: #fff;
  --radius: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,0.10);
  --max-width: 1100px;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; font-size: 16px; line-height: 1.6; color: var(--text); background: var(--white); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--orange); }

/* ── Layout ─────────────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header { background: var(--navy); color: var(--white); padding: 0; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.25); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; flex-direction: column; text-decoration: none; }
.logo-main { font-size: 1.2rem; font-weight: 700; color: var(--white); line-height: 1.2; }
.logo-sub { font-size: 0.75rem; color: rgba(255,255,255,0.6); line-height: 1; }
.main-nav { display: flex; align-items: center; gap: 20px; }
.nav-link { color: rgba(255,255,255,0.85); font-size: 0.95rem; transition: color .2s; }
.nav-link:hover { color: var(--white); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn { display: inline-block; padding: 10px 22px; border-radius: var(--radius); font-size: 0.95rem; font-weight: 600; cursor: pointer; border: none; text-align: center; transition: background .2s, transform .1s; text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--orange); color: var(--white); }
.btn-primary:hover { background: var(--orange-light); color: var(--white); }
.btn-secondary { background: var(--grey-100); color: var(--navy); border: 1px solid var(--grey-300); }
.btn-secondary:hover { background: var(--grey-300); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-dark); color: var(--white); }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-danger { background: #c0392b; color: var(--white); }
.btn-danger:hover { background: #a93226; color: var(--white); }

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb { background: var(--grey-50); border-bottom: 1px solid var(--grey-100); }
.breadcrumb ol { display: flex; align-items: center; gap: 8px; list-style: none; max-width: var(--max-width); margin: 0 auto; padding: 10px 20px; font-size: 0.85rem; flex-wrap: wrap; }
.breadcrumb li { color: var(--grey-500); }
.breadcrumb li::after { content: '›'; margin-left: 8px; }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--navy); }

/* ── Hero ────────────────────────────────────────────────── */
.hero { background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%); color: var(--white); padding: 80px 20px; text-align: center; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; margin-bottom: 16px; line-height: 1.2; }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto 32px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Materials Grid ──────────────────────────────────────── */
.section { padding: 60px 0; }
.section-title { font-size: 1.6rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.section-lead { color: var(--grey-700); margin-bottom: 36px; }
.materials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.material-card { background: var(--white); border: 2px solid var(--grey-100); border-radius: 6px; padding: 24px 20px; cursor: pointer; transition: border-color .2s, box-shadow .2s; text-align: center; }
.material-card:hover, .material-card--selected { border-color: var(--orange); box-shadow: var(--shadow); }
.material-card h3 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.material-card p { font-size: 0.85rem; color: var(--grey-700); line-height: 1.4; }
.material-card a { text-decoration: none; color: inherit; display: block; }

/* ── Step Indicator ──────────────────────────────────────── */
.step-indicator { display: flex; align-items: center; justify-content: center; padding: 28px 20px 0; }
.step { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.step-num { width: 36px; height: 36px; border-radius: 50%; background: var(--grey-300); color: var(--grey-700); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; }
.step-label { font-size: 0.8rem; color: var(--grey-500); font-weight: 500; }
.step--active .step-num { background: var(--orange); color: var(--white); }
.step--active .step-label { color: var(--navy); }
.step--done .step-num { background: var(--navy); color: var(--white); }
.step--done .step-label { color: var(--navy); }
a.step { text-decoration: none; cursor: pointer; }
a.step:hover .step-num { background: var(--orange); }
a.step:hover .step-label { color: var(--orange); }
.step-connector { flex: 1; max-width: 60px; height: 2px; background: var(--grey-300); margin: 0 8px; margin-bottom: 22px; }

/* ── Form Styles ─────────────────────────────────────────── */
.form-section { max-width: 680px; margin: 0 auto; padding: 48px 20px; }
.form-title { font-size: 1.5rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.form-lead { color: var(--grey-700); margin-bottom: 32px; }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 2px solid var(--grey-300); border-radius: var(--radius);
  font-size: 1rem; color: var(--text); transition: border-color .2s; background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--navy);
}
.form-group .hint { font-size: 0.82rem; color: var(--grey-500); margin-top: 4px; }
.form-group .error { font-size: 0.82rem; color: #c0392b; margin-top: 4px; }
.form-actions { display: flex; gap: 12px; align-items: center; margin-top: 32px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Option Cards (width/TPI selector) ────────────────────── */
.option-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin-bottom: 24px; }
.option-card { position: relative; }
.option-card input[type="radio"] { position: absolute; opacity: 0; width: 100%; height: 100%; cursor: pointer; margin: 0; }
.option-card label { display: block; padding: 16px 12px; border: 2px solid var(--grey-300); border-radius: 6px; text-align: center; cursor: pointer; transition: border-color .15s, background .15s; font-weight: 600; color: var(--navy); }
.option-card input[type="radio"]:checked + label { border-color: var(--orange); background: #fff8f0; }
.option-card label:hover { border-color: var(--navy); }
.option-label-main { display: block; font-size: 1.1rem; }
.option-label-sub { display: block; font-size: 0.78rem; color: var(--grey-500); font-weight: 400; margin-top: 2px; }

/* ── Price Display ───────────────────────────────────────── */
.price-box { background: var(--grey-50); border: 2px solid var(--grey-100); border-radius: 6px; padding: 20px 24px; margin-bottom: 24px; }
.price-box .price-amount { font-size: 2rem; font-weight: 700; color: var(--navy); }
.price-box .price-label { color: var(--grey-500); font-size: 0.9rem; margin-top: 2px; }
.price-box .price-per { font-size: 0.85rem; color: var(--grey-700); }

/* ── Basket ──────────────────────────────────────────────── */
.basket-section { max-width: 800px; margin: 0 auto; padding: 48px 20px; }
.basket-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.basket-table th { background: var(--navy); color: var(--white); padding: 12px 16px; text-align: left; font-size: 0.88rem; }
.basket-table td { padding: 14px 16px; border-bottom: 1px solid var(--grey-100); vertical-align: middle; }
.basket-table tr:last-child td { border-bottom: none; }
.qty-input { width: 60px; padding: 6px; text-align: center; border: 1px solid var(--grey-300); border-radius: 3px; }
.basket-total { font-size: 1.4rem; font-weight: 700; color: var(--navy); text-align: right; margin-bottom: 24px; }
.basket-empty { text-align: center; padding: 60px 20px; color: var(--grey-500); }
.basket-empty h2 { margin-bottom: 12px; color: var(--navy); }

/* ── Checkout ────────────────────────────────────────────── */
.checkout-grid { display: grid; grid-template-columns: 1fr 340px; gap: 32px; max-width: 1000px; margin: 0 auto; padding: 48px 20px; }
.checkout-summary { background: var(--grey-50); border: 1px solid var(--grey-100); border-radius: 6px; padding: 24px; position: sticky; top: 84px; align-self: start; }
.checkout-summary h3 { color: var(--navy); font-size: 1rem; margin-bottom: 16px; }
.summary-item { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 10px; font-size: 0.88rem; }
.summary-item .item-desc { color: var(--grey-700); flex: 1; }
.summary-divider { border: none; border-top: 1px solid var(--grey-300); margin: 12px 0; }
.summary-total { display: flex; justify-content: space-between; font-weight: 700; font-size: 1.05rem; color: var(--navy); }

/* ── Success / Info pages ───────────────────────────────── */
.page-center { text-align: center; max-width: 600px; margin: 80px auto; padding: 0 20px; }
.page-center .icon { font-size: 3rem; margin-bottom: 20px; }
.page-center h1 { font-size: 1.8rem; color: var(--navy); margin-bottom: 12px; }
.page-center p { color: var(--grey-700); margin-bottom: 24px; }

/* ── Material/SEO Landing Page ───────────────────────────── */
.page-hero { background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 100%); color: var(--white); padding: 60px 20px; }
.page-hero h1 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.85); max-width: 600px; font-size: 1.05rem; margin-bottom: 24px; }
.page-content { max-width: 800px; margin: 0 auto; padding: 48px 20px; }
.page-content h2 { color: var(--navy); font-size: 1.3rem; margin: 32px 0 12px; }
.page-content p { margin-bottom: 16px; color: var(--grey-700); line-height: 1.7; }

/* ── Feature list ────────────────────────────────────────── */
.features { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin-top: 40px; }
.feature { display: flex; gap: 14px; align-items: flex-start; }
.feature-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.feature h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.feature p { font-size: 0.85rem; color: var(--grey-700); line-height: 1.4; }

/* ── Alert / Flash messages ─────────────────────────────── */
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 20px; font-size: 0.9rem; }
.alert-error { background: #fdf0ee; border: 1px solid #e8b5b0; color: #7a2020; }
.alert-success { background: #eef8f0; border: 1px solid #b0dab8; color: #1a5c2e; }
.alert-info { background: #eef2f8; border: 1px solid #b0c4de; color: #1a3a5c; }

/* ── Admin ────────────────────────────────────────────────── */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 64px); }
.admin-sidebar { background: var(--navy-dark); padding: 24px 0; }
.admin-sidebar h2 { color: rgba(255,255,255,0.5); font-size: 0.7rem; text-transform: uppercase; letter-spacing: .1em; padding: 0 20px; margin-bottom: 8px; }
.admin-sidebar a { display: block; padding: 10px 20px; color: rgba(255,255,255,0.8); font-size: 0.9rem; transition: background .15s; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.1); color: var(--white); }
.admin-main { padding: 36px 32px; }
.admin-main h1 { font-size: 1.6rem; color: var(--navy); margin-bottom: 24px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th { background: var(--navy); color: var(--white); padding: 10px 14px; text-align: left; }
.admin-table td { padding: 10px 14px; border-bottom: 1px solid var(--grey-100); }
.admin-table tr:hover td { background: var(--grey-50); }
.status-badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
.status-pending { background: #fef9e7; color: #8a6900; }
.status-paid { background: #eefaf3; color: #1a6e3c; }
.status-processing { background: #eef2ff; color: #2a4aad; }
.status-dispatched { background: #f0f0f0; color: #444; }
.status-cancelled { background: #fdf0f0; color: #8a1c1c; }
.admin-login { max-width: 400px; margin: 80px auto; padding: 0 20px; }
.admin-login h1 { font-size: 1.5rem; color: var(--navy); margin-bottom: 24px; }

/* ── Content editor ──────────────────────────────────────── */
.content-editor textarea { font-family: monospace; min-height: 200px; font-size: 0.88rem; }
.content-tabs { display: flex; gap: 0; border-bottom: 2px solid var(--grey-300); margin-bottom: 24px; }
.content-tab { padding: 10px 20px; font-size: 0.9rem; cursor: pointer; color: var(--grey-700); border-bottom: 2px solid transparent; margin-bottom: -2px; }
.content-tab.active { color: var(--navy); font-weight: 700; border-bottom-color: var(--orange); }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { background: var(--navy-dark); color: rgba(255,255,255,0.75); padding: 48px 0 0; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 32px; margin-bottom: 40px; }
.footer-col h3 { color: var(--white); font-size: 0.9rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 0.88rem; transition: color .2s; }
.footer-col a:hover { color: var(--white); }
.footer-about p { font-size: 0.85rem; line-height: 1.6; margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; font-size: 0.82rem; color: rgba(255,255,255,0.4); }

/* ── Product Size Landing Page ───────────────────────────── */
.product-hero { background: var(--grey-50); border-bottom: 1px solid var(--grey-100); padding: 40px 0; }
.product-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-image-wrap { border-radius: 6px; overflow: hidden; box-shadow: var(--shadow); background: #111; line-height: 0; }
.product-image { width: 100%; height: auto; display: block; }
.product-material-label { font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--orange); margin-bottom: 8px; }
.product-title { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; color: var(--navy); line-height: 1.25; margin-bottom: 12px; }
.product-tagline { color: var(--grey-700); font-size: 0.95rem; margin-bottom: 24px; line-height: 1.6; }
.product-spec-table { border: 1px solid var(--grey-100); border-radius: 6px; overflow: hidden; margin-bottom: 28px; }
.product-spec-row { display: grid; grid-template-columns: 120px 1fr; border-bottom: 1px solid var(--grey-100); }
.product-spec-row:last-child { border-bottom: none; }
.product-spec-row dt { background: var(--grey-50); padding: 10px 14px; font-size: 0.85rem; font-weight: 600; color: var(--grey-700); }
.product-spec-row dd { padding: 10px 14px; font-size: 0.9rem; color: var(--text); }
.product-spec-instock { color: #1a6e3c; font-weight: 600; }
.product-cta { display: flex; flex-direction: column; gap: 10px; }
.product-cta-note { font-size: 0.82rem; color: var(--grey-500); line-height: 1.5; margin: 0; }

/* Prose section (detail content below the product hero) */
.prose { max-width: 760px; margin: 0 auto 48px; }
.prose h2 { color: var(--navy); font-size: 1.25rem; margin: 36px 0 10px; }
.prose p { color: var(--grey-700); line-height: 1.75; margin-bottom: 16px; }

/* Related materials */
.related-materials { border-top: 1px solid var(--grey-100); padding-top: 36px; margin-top: 8px; }
.related-materials h2 { color: var(--navy); font-size: 1.2rem; margin-bottom: 8px; }
.related-materials > p { color: var(--grey-700); margin-bottom: 20px; font-size: 0.95rem; }
.related-materials__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.related-material-card { display: flex; flex-direction: column; gap: 4px; padding: 16px; border: 1px solid var(--grey-100); border-radius: 6px; text-decoration: none; transition: border-color .2s, box-shadow .2s; }
.related-material-card:hover { border-color: var(--orange); box-shadow: var(--shadow); }
.related-material-card strong { color: var(--navy); font-size: 0.9rem; }
.related-material-card span { color: var(--grey-500); font-size: 0.78rem; line-height: 1.4; }

@media (max-width: 768px) {
  .product-layout { grid-template-columns: 1fr; gap: 24px; }
  .product-hero { padding: 24px 0; }
}

/* ── Size browse grid (material pages) ───────────────────── */
.size-browse { margin: 0 0 48px; }
.size-browse__heading { color: var(--navy); font-size: 1.3rem; margin-bottom: 8px; }
.size-browse__sub { color: var(--grey-700); font-size: 0.95rem; margin-bottom: 20px; }
.size-browse__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-bottom: 16px; }
.size-card { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border: 1px solid var(--grey-300); border-radius: 6px; text-decoration: none; transition: border-color .15s, box-shadow .15s, background .15s; background: var(--white); }
.size-card:hover { border-color: var(--orange); box-shadow: var(--shadow); background: #fff8f0; }
.size-card__length { font-size: 1.05rem; font-weight: 700; color: var(--navy); }
.size-card__detail { font-size: 0.78rem; color: var(--grey-500); line-height: 1.4; }
.size-browse__note { font-size: 0.85rem; color: var(--grey-500); }
.size-browse__note a { color: var(--navy); text-decoration: underline; }

/* ── Material CTA box ────────────────────────────────────── */
.material-cta-box { background: var(--navy); color: var(--white); border-radius: 8px; padding: 36px 32px; text-align: center; margin: 48px 0; }
.material-cta-box h2 { color: var(--white); font-size: 1.4rem; margin-bottom: 8px; }
.material-cta-box p { color: rgba(255,255,255,0.8); margin-bottom: 20px; }

/* ── Page hero actions ───────────────────────────────────── */
.page-hero__actions { margin-top: 20px; }
.page-hero__sub { color: rgba(255,255,255,0.85); max-width: 600px; font-size: 1.05rem; margin-bottom: 8px; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .checkout-grid { grid-template-columns: 1fr; }
  .checkout-summary { position: static; }
  .form-row { grid-template-columns: 1fr; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .hero { padding: 50px 20px; }
  .basket-table th:nth-child(3), .basket-table td:nth-child(3) { display: none; }
}

@media (max-width: 480px) {
  .logo-sub { display: none; }
  .step-label { display: none; }
  .option-cards { grid-template-columns: repeat(2, 1fr); }
}

/* ── Basket VAT rows ─────────────────────────────────────── */
.basket-table tfoot td { padding: 10px 16px; border-bottom: 1px solid var(--grey-100); }
.basket-table__subtotal td, .basket-table__vat td { color: var(--grey-700); font-size: 0.92rem; }
.basket-table__vat td { border-bottom: 1px solid var(--grey-300); }
.basket-table__total td { font-size: 1.05rem; background: var(--grey-50); }

/* ── Blade Review ────────────────────────────────────────── */
.blade-review { margin: 32px 0; }
.blade-review__card { background: var(--white); border: 2px solid var(--navy); border-radius: 8px; padding: 32px; max-width: 560px; }
.blade-review__title { font-size: 1.4rem; color: var(--navy); margin-bottom: 6px; }
.blade-review__spec { color: var(--grey-700); font-size: 1rem; margin-bottom: 24px; }
.blade-review__details { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-bottom: 28px; border: 1px solid var(--grey-100); border-radius: 4px; overflow: hidden; }
.blade-review__row { display: contents; }
.blade-review__row dt { padding: 10px 14px; background: var(--grey-50); font-weight: 600; font-size: 0.88rem; color: var(--grey-700); border-bottom: 1px solid var(--grey-100); }
.blade-review__row dd { padding: 10px 14px; background: var(--white); border-bottom: 1px solid var(--grey-100); }
.blade-review__pricing { border-top: 2px solid var(--grey-100); padding-top: 16px; }
.blade-review__price-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.95rem; color: var(--grey-700); }
.blade-review__price-row--total { padding-top: 10px; border-top: 1px solid var(--grey-300); margin-top: 6px; font-size: 1.1rem; color: var(--navy); }
@media (max-width: 560px) {
  .blade-review__details { grid-template-columns: 1fr; }
  .blade-review__row dt, .blade-review__row dd { display: block; }
}

/* ── Similar Blades Widget ──────────────────────────────── */
.similar-blades { border-top: 1px solid var(--grey-100); padding-top: 36px; margin-top: 8px; margin-bottom: 8px; }
.similar-blades h2 { color: var(--navy); font-size: 1.2rem; margin-bottom: 8px; }
.similar-blades > p { color: var(--grey-700); margin-bottom: 20px; font-size: 0.95rem; }
.similar-blades__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.similar-blade-card { display: flex; flex-direction: column; gap: 4px; padding: 16px; border: 1px solid var(--grey-100); border-radius: 6px; text-decoration: none; transition: border-color .2s, box-shadow .2s; }
.similar-blade-card:hover { border-color: var(--orange); box-shadow: var(--shadow); }
.similar-blade-card__length { color: var(--navy); font-size: 1rem; font-weight: 700; }
.similar-blade-card__spec { color: var(--grey-700); font-size: 0.82rem; }
.similar-blade-card__label { color: var(--grey-500); font-size: 0.75rem; margin-top: 2px; }

/* ── Payment Element (Stripe iframe) ─────────────────────── */
.payment-element-container {
  margin: 20px 0;
  padding: 16px;
  border: 1px solid var(--grey-200);
  border-radius: 6px;
  background: var(--white);
}

.payment-message {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.payment-message.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.payment-message.success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

/* ── Loading Spinner ────────────────────────────────────── */
.spinner {
  display: inline-block;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top: 3px solid var(--navy);
  width: 16px;
  height: 16px;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}