/* ============================================================
   SciCo Made — site stylesheet
   Design system: red / black / white, Montserrat type
   ============================================================ */

:root {
  /* Color */
  --red:        #E10600;
  --red-soft:   #FFEDEB;
  --red-dark:   #B30500;
  --black:      #0A0A0A;
  --white:      #FFFFFF;
  --gray-50:    #FAFAFA;
  --gray-100:   #F3F4F6;
  --gray-200:   #E5E7EB;
  --gray-300:   #D1D5DB;
  --gray-500:   #6B7280;
  --gray-700:   #374151;
  --gray-800:   #1F2937;
  --green:      #16A34A;

  /* Spacing */
  --max-w:      1200px;
  --pad-x:      24px;
  --radius:     14px;
  --radius-sm:  8px;

  /* Type */
  --font: 'Montserrat', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Effects */
  --shadow-card: 6px 6px 0 var(--black);
  --shadow-card-hover: 8px 8px 0 var(--red);
  --shadow-soft: 0 4px 16px rgba(0,0,0,0.06);
  --transition: .15s ease;
}

/* ---------- RESET / BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* ---------- TYPE ---------- */
h1, h2, h3, h4 { letter-spacing: -0.02em; line-height: 1.05; margin: 0; font-weight: 900; }
h1 { font-size: clamp(40px, 7vw, 88px); letter-spacing: -0.04em; }
h2 { font-size: clamp(30px, 5vw, 56px); letter-spacing: -0.03em; }
h3 { font-size: clamp(20px, 2.4vw, 28px); letter-spacing: -0.02em; }
h4 { font-size: 16px; font-weight: 700; }
p { margin: 0 0 16px; }
.accent { color: var(--red); }
.eyebrow {
  font-size: 12px; font-weight: 800; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--red);
  margin-bottom: 12px; display: inline-block;
}
.muted { color: var(--gray-500); }
.lede { font-size: 17px; color: var(--gray-500); font-weight: 500; }

/* ---------- LAYOUT ---------- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad-x); }
.section { max-width: var(--max-w); margin: 0 auto; padding: 80px var(--pad-x); }
.section-tight { padding: 56px var(--pad-x); }

/* ---------- HEADER ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--gray-100);
}
.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand-mark {
  font-weight: 900; font-size: 22px; letter-spacing: -0.02em;
  flex-shrink: 0;
}
.brand-mark .accent { color: var(--red); }
.nav-links {
  display: flex; align-items: center; gap: 28px;
  list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  font-weight: 700; font-size: 14px;
  color: var(--gray-700);
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--red); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.cart-btn {
  position: relative;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 14px;
  border: 2px solid var(--black);
  border-radius: 999px;
  background: var(--white);
  color: var(--black);
  font-weight: 800; font-size: 13px;
}
.cart-btn:hover { background: var(--black); color: var(--white); }
.cart-btn .count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 5px;
  background: var(--red); color: var(--white);
  border-radius: 999px;
  font-size: 11px; font-weight: 800;
}
.cart-btn .count[data-empty="true"] { display: none; }

/* Mobile nav */
.menu-btn {
  display: none;
  border: 2px solid var(--black);
  border-radius: 999px;
  background: var(--white);
  width: 38px; height: 38px;
  align-items: center; justify-content: center;
}
.menu-btn:hover { background: var(--black); color: var(--white); }
.menu-btn svg { width: 18px; height: 18px; }
@media (max-width: 800px) {
  .nav-links {
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--gray-100);
    transform: translateY(-110%);
    transition: transform .25s ease;
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a {
    display: block; padding: 16px var(--pad-x);
    border-top: 1px solid var(--gray-100);
    width: 100%;
  }
  .menu-btn { display: inline-flex; }
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 800; font-size: 14px; letter-spacing: 0.02em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--black); color: var(--white);
  border-color: var(--black);
}
.btn-primary:hover { background: var(--red); border-color: var(--red); }
.btn-secondary {
  background: var(--white); color: var(--black);
  border-color: var(--black);
}
.btn-secondary:hover { background: var(--black); color: var(--white); }
.btn-red {
  background: var(--red); color: var(--white);
  border-color: var(--red);
}
.btn-red:hover { background: var(--red-dark); border-color: var(--red-dark); }
.btn-ghost {
  background: transparent; color: var(--black);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--gray-100); }
.btn-block { width: 100%; padding: 14px 22px; }
.btn-lg { padding: 16px 28px; font-size: 15px; }

/* ---------- BADGE ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  background: var(--gray-100);
  color: var(--gray-800);
  border-radius: 999px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(225,6,0,0.18);
  animation: pulse 2s ease-in-out infinite;
}
.badge.solid {
  background: var(--black); color: var(--white);
}
.badge.red {
  background: var(--red-soft); color: var(--red);
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(225,6,0,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(225,6,0,0.06); }
}

/* ---------- HERO ---------- */
.hero {
  text-align: center;
  padding: 96px var(--pad-x) 80px;
  max-width: var(--max-w); margin: 0 auto;
}
.hero h1 { margin: 0 0 24px; }
.hero .lede {
  max-width: 640px;
  margin: 0 auto 40px;
  font-size: clamp(17px, 2vw, 21px);
}

/* ---------- EMAIL FORM ---------- */
.signup { max-width: 520px; margin: 0 auto; }
.signup form {
  display: flex; gap: 8px;
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius);
  padding: 6px;
  box-shadow: 4px 4px 0 var(--black);
  transition: transform var(--transition), box-shadow var(--transition);
}
.signup form:focus-within {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--red);
}
.signup input[type="email"] {
  flex: 1; border: 0; outline: 0;
  padding: 12px 14px; font-size: 15px;
  background: transparent;
}
.signup button {
  border: 0;
  background: var(--black); color: var(--white);
  font-weight: 800;
  padding: 12px 20px;
  border-radius: 10px;
  letter-spacing: 0.02em;
  transition: background var(--transition);
}
.signup button:hover { background: var(--red); }
.signup .small { margin-top: 12px; font-size: 13px; color: var(--gray-500); }
.signup .ok {
  display: none; margin-top: 16px;
  padding: 14px;
  background: var(--red-soft);
  border: 1px solid var(--red);
  border-radius: var(--radius);
  font-weight: 600;
}
.signup .ok.show { display: block; }
@media (max-width: 600px) {
  .signup form { flex-direction: column; padding: 8px; }
  .signup button { width: 100%; padding: 14px; }
}

/* ---------- CARDS ---------- */
.card {
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-shadow {
  box-shadow: var(--shadow-card);
}
.card-shadow:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-card-hover);
}

/* Brand cards (used on home + sub-brand intros) */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.brand-card {
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
  min-height: 280px;
  text-align: left;
}
.brand-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-card-hover);
}
.brand-card.master {
  background: var(--black); color: var(--white);
}
.brand-card.master .desc { color: var(--gray-300); }
.brand-card .label {
  font-size: 11px; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 4px;
}
.brand-card.master .label { color: var(--gray-300); }
.brand-card .wordmark {
  font-size: 32px; font-weight: 900; letter-spacing: -0.03em;
  line-height: 1; margin-bottom: 6px;
}
.brand-card .wordmark .accent { color: var(--red); }
.brand-card .desc {
  margin-top: 16px; font-size: 14px;
  color: var(--gray-500); font-weight: 500; line-height: 1.5;
}
.brand-card .tag {
  margin-top: auto; padding-top: 24px;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
}
.brand-card.master .tag { color: var(--white); }

/* ---------- PRODUCT CARDS ---------- */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 4px 4px 0 var(--black);
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--red);
}
.product-card .art {
  aspect-ratio: 1 / 1;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-card .art svg { width: 50%; height: 50%; opacity: 0.85; }
.product-card .body { padding: 18px 18px 22px; }
.product-card .brand-tag {
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray-500); margin-bottom: 6px;
}
.product-card .name {
  font-size: 17px; font-weight: 800; letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.product-card .price {
  font-size: 15px; font-weight: 700; color: var(--red);
}
.product-card .lead {
  font-size: 12px; color: var(--gray-500); margin-top: 6px;
}
.product-card .ribbon {
  position: absolute; top: 12px; left: 12px;
  background: var(--red); color: var(--white);
  padding: 4px 10px; border-radius: 999px;
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* Product art tiles — color-tinted by brand */
.art.bits     { background: linear-gradient(135deg, #FFF5F4 0%, #FFD3CF 100%); color: var(--red); }
.art.builds   { background: linear-gradient(135deg, #FAFAFA 0%, #D1D5DB 100%); color: var(--black); }
.art.labs     { background: linear-gradient(135deg, #FFEAE8 0%, #FFA8A2 100%); color: var(--red-dark); }

/* ---------- FILTERS ---------- */
.filter-bar {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 32px;
  justify-content: center;
}
.filter-chip {
  padding: 8px 16px;
  border: 2px solid var(--black);
  background: var(--white);
  color: var(--black);
  border-radius: 999px;
  font-weight: 800; font-size: 13px;
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.filter-chip:hover { background: var(--gray-100); }
.filter-chip.active { background: var(--black); color: var(--white); }

/* ---------- VALUE BAND ---------- */
.band {
  background: var(--black);
  color: var(--white);
  padding: 80px var(--pad-x);
}
.band-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}
.band h3 { color: var(--white); margin: 0 0 8px; }
.band h3 .accent { color: var(--red); }
.band p { color: var(--gray-300); font-size: 15px; line-height: 1.6; margin: 0; }

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--black);
  color: var(--gray-300);
  padding: 56px var(--pad-x) 32px;
  margin-top: 80px;
}
.foot-grid {
  max-width: var(--max-w); margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.foot-col h5 {
  color: var(--white);
  font-size: 13px; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin: 0 0 16px;
}
.foot-col ul { list-style: none; margin: 0; padding: 0; }
.foot-col li { margin-bottom: 10px; }
.foot-col a {
  color: var(--gray-300);
  font-size: 14px;
  transition: color var(--transition);
}
.foot-col a:hover { color: var(--white); }
.foot-col p { color: var(--gray-300); font-size: 14px; line-height: 1.6; }
.foot-bottom {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-700);
}
.foot-bottom .brand-mark { color: var(--white); font-size: 24px; }
.foot-bottom .brand-mark .accent { color: var(--red); }
.foot-bottom .copy { font-size: 13px; color: var(--gray-500); }
.foot-bottom .copy a { color: var(--gray-500); }
@media (max-width: 800px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .foot-grid { grid-template-columns: 1fr; }
}

/* ---------- CART DRAWER ---------- */
.cart-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 90;
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition);
}
.cart-overlay.open { opacity: 1; visibility: visible; }
.cart-drawer {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 420px; max-width: 100vw;
  background: var(--white);
  z-index: 100;
  transform: translateX(100%);
  transition: transform .25s ease;
  display: flex; flex-direction: column;
  box-shadow: -8px 0 24px rgba(0,0,0,0.12);
}
.cart-drawer.open { transform: translateX(0); }
.cart-head {
  padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--gray-100);
}
.cart-head h3 { font-size: 22px; }
.cart-close {
  background: transparent; border: 0;
  width: 36px; height: 36px;
  border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
}
.cart-close:hover { background: var(--gray-100); }
.cart-items {
  flex: 1; overflow-y: auto;
  padding: 20px 24px;
}
.cart-empty {
  text-align: center; padding: 40px 20px;
  color: var(--gray-500);
}
.cart-empty p { margin: 0 0 16px; }
.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-100);
}
.cart-item .thumb {
  width: 64px; height: 64px;
  border-radius: 8px;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
}
.cart-item .thumb svg { width: 50%; height: 50%; opacity: 0.7; }
.cart-item .name { font-weight: 700; font-size: 14px; }
.cart-item .meta { font-size: 12px; color: var(--gray-500); margin-top: 2px; }
.cart-item .price { font-weight: 800; color: var(--red); font-size: 14px; }
.qty-control {
  display: inline-flex; align-items: center;
  border: 1px solid var(--gray-300);
  border-radius: 999px;
  margin-top: 6px;
  overflow: hidden;
}
.qty-control button {
  width: 26px; height: 26px;
  border: 0; background: transparent;
  font-weight: 700; color: var(--gray-700);
}
.qty-control button:hover { background: var(--gray-100); }
.qty-control .qty { padding: 0 8px; font-size: 13px; font-weight: 700; min-width: 22px; text-align: center; }
.cart-item .remove {
  background: transparent; border: 0;
  font-size: 11px; font-weight: 700;
  color: var(--gray-500);
  margin-top: 6px;
  text-decoration: underline;
}
.cart-item .remove:hover { color: var(--red); }
.cart-foot {
  padding: 20px 24px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}
.cart-line {
  display: flex; justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
}
.cart-total {
  display: flex; justify-content: space-between;
  margin: 12px 0 16px;
  font-size: 18px; font-weight: 900;
}
.cart-note {
  font-size: 12px; color: var(--gray-500);
  margin-top: 12px; text-align: center;
}

/* ---------- PRODUCT DETAIL ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px var(--pad-x);
}
.product-gallery {
  position: sticky; top: 80px; align-self: start;
}
.gallery-main {
  aspect-ratio: 1 / 1;
  border: 2px solid var(--black);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.gallery-main svg { width: 50%; height: 50%; opacity: 0.85; }
.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 12px;
}
.gallery-thumbs .thumb {
  aspect-ratio: 1 / 1;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
}
.gallery-thumbs .thumb.active { border-color: var(--black); }
.gallery-thumbs .thumb svg { width: 50%; height: 50%; opacity: 0.6; }

.product-info h1 { font-size: clamp(28px, 4vw, 44px); margin: 8px 0 16px; }
.product-price {
  font-size: 28px; font-weight: 900; color: var(--red);
  margin-bottom: 4px;
}
.product-lead {
  font-size: 14px; color: var(--gray-500);
  margin-bottom: 24px;
}
.option-group { margin-bottom: 24px; }
.option-group label {
  display: block;
  font-size: 12px; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray-500); margin-bottom: 10px;
}
.option-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.option-chip {
  padding: 9px 14px;
  border: 2px solid var(--gray-300);
  border-radius: 999px;
  background: var(--white);
  font-weight: 700; font-size: 13px;
  transition: all var(--transition);
}
.option-chip:hover { border-color: var(--gray-500); }
.option-chip.active { border-color: var(--black); background: var(--black); color: var(--white); }

.spec-table {
  width: 100%; border-collapse: collapse;
  margin-top: 24px;
  font-size: 14px;
}
.spec-table tr { border-top: 1px solid var(--gray-200); }
.spec-table td { padding: 10px 0; }
.spec-table td:first-child { color: var(--gray-500); width: 130px; }
.spec-table td:last-child { font-weight: 600; }

@media (max-width: 800px) {
  .product-detail { grid-template-columns: 1fr; gap: 24px; }
  .product-gallery { position: relative; top: 0; }
}

/* ---------- CUSTOM COMMISSION FORM ---------- */
.commission-form {
  max-width: 720px; margin: 0 auto;
  padding: 0 var(--pad-x) 80px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px; font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.form-group .help {
  font-size: 12px; color: var(--gray-500);
  margin: 4px 0 0;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--gray-300);
  border-radius: 10px;
  background: var(--white);
  font-size: 15px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: 0;
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(225, 6, 0, 0.15);
}
.form-textarea { resize: vertical; min-height: 120px; font-family: inherit; }
.form-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}
.dropzone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  background: var(--gray-50);
  transition: all var(--transition);
}
.dropzone.drag { border-color: var(--red); background: var(--red-soft); }
.dropzone p { margin: 0; color: var(--gray-500); }
.dropzone .file-list { margin-top: 12px; font-size: 13px; }

/* ---------- FAQ ACCORDION ---------- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--gray-200);
}
.faq-item summary {
  list-style: none;
  padding: 20px 0;
  cursor: pointer;
  font-weight: 800; font-size: 17px;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 24px; font-weight: 400;
  color: var(--red);
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .answer {
  padding: 0 0 20px;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ---------- ABOUT ---------- */
.about-hero {
  text-align: center;
  padding: 80px var(--pad-x) 40px;
  max-width: 800px; margin: 0 auto;
}
.about-body {
  max-width: 720px; margin: 0 auto;
  padding: 0 var(--pad-x) 80px;
  font-size: 17px;
  line-height: 1.7;
}
.about-body p { color: var(--gray-700); }

/* ---------- UTILITIES ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 32px; }
.flex { display: flex; }
.gap-2 { gap: 16px; }
.center { display: flex; align-items: center; justify-content: center; }
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}