/* Corp Numismatics — Holdings-inspired dark/gold buyback storefront */

:root,
html[data-theme="dark"] {
  --cn-bg: #050505;
  --cn-bg-2: #0c0c0c;
  --cn-bg-card: #141414;
  --cn-gold: #c9a86a;
  --cn-gold-2: #b89452;
  --cn-gold-bright: #d4b87a;
  --cn-text: #f5f3ef;
  --cn-muted: rgba(255, 255, 255, 0.74);
  --cn-line: rgba(255, 255, 255, 0.12);
  --cn-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  --cn-radius: 18px;
  --cn-maxw: 1180px;
  --cn-sans: "Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --cn-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --cn-success: #6ee7a8;
  --cn-danger: #f87171;
}

html[data-theme="light"] {
  --cn-bg: #f4f2eb;
  --cn-bg-2: #ffffff;
  --cn-bg-card: #ffffff;
  --cn-text: #16202e;
  --cn-muted: #5a6678;
  --cn-line: rgba(10, 28, 63, 0.12);
  --cn-shadow: 0 18px 48px rgba(10, 28, 63, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

.cn-body {
  margin: 0;
  font-family: var(--cn-sans);
  color: var(--cn-text);
  background: var(--cn-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.cn-main { flex: 1 0 auto; }
img { max-width: 100%; display: block; }
a { color: inherit; }

.cn-container {
  width: 100%;
  max-width: var(--cn-maxw);
  margin: 0 auto;
  padding: 0 22px;
}

.cn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--cn-sans);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  line-height: 1;
}
.cn-btn--gold {
  background: linear-gradient(135deg, var(--cn-gold) 0%, var(--cn-gold-2) 100%);
  color: #0a0a0a;
  box-shadow: 0 10px 24px rgba(201, 162, 83, 0.28);
}
.cn-btn--gold:hover { transform: translateY(-1px); }
.cn-btn--ghost {
  background: transparent;
  color: var(--cn-text);
  border-color: var(--cn-line);
}
.cn-btn--block { width: 100%; }
.cn-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.cn-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 5, 5, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cn-line);
}
html[data-theme="light"] .cn-header { background: rgba(255, 255, 255, 0.92); }

.cn-topbar {
  border-bottom: 1px solid var(--cn-line);
  font-size: 0.78rem;
  color: var(--cn-muted);
}
.cn-topbar__inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  flex-wrap: wrap;
}
.cn-navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}
.cn-brand__logo { height: 44px; width: auto; max-width: min(280px, 55vw); object-fit: contain; }
.cn-nav { display: none; align-items: center; gap: 8px; }
.cn-nav__link {
  padding: 8px 12px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--cn-muted);
}
.cn-nav__link:hover,
.cn-nav__link.is-active { color: var(--cn-text); background: rgba(255,255,255,0.06); }
.cn-menu-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.cn-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--cn-gold);
}
.cn-mobile-nav {
  border-top: 1px solid var(--cn-line);
  padding: 12px 22px 18px;
}
.cn-mobile-nav[hidden] { display: none; }
.cn-mobile-nav a {
  display: block;
  padding: 12px 0;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid var(--cn-line);
}
@media (min-width: 900px) {
  .cn-nav { display: flex; }
  .cn-menu-toggle { display: none; }
}

.cn-hero {
  padding: 48px 0 36px;
  background:
    radial-gradient(ellipse at top right, rgba(201, 162, 83, 0.14), transparent 50%),
    linear-gradient(180deg, #0a0a0a 0%, var(--cn-bg) 100%);
}
.cn-kicker {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cn-gold);
  margin: 0 0 12px;
}
.cn-hero h1 {
  margin: 0;
  font-family: var(--cn-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.12;
  font-weight: 700;
  max-width: 16ch;
}
.cn-hero__body {
  margin: 14px 0 0;
  max-width: 36rem;
  color: var(--cn-muted);
  font-size: 1.05rem;
}
.cn-search-bar {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 640px;
}
.cn-search-bar input[type="search"],
.cn-input,
.cn-select,
.cn-textarea {
  flex: 1 1 220px;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
  color: var(--cn-text);
  font: inherit;
}
.cn-textarea { border-radius: 14px; min-height: 100px; }
.cn-search-bar .cn-btn { flex: 0 0 auto; }

.cn-section { padding: 48px 0; }
.cn-section--alt { background: var(--cn-bg-2); }
.cn-section__head { margin-bottom: 24px; }
.cn-section__title {
  margin: 0;
  font-family: var(--cn-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}
.cn-section__intro { margin: 8px 0 0; color: var(--cn-muted); max-width: 40rem; }

.cn-grid {
  display: grid;
  gap: 16px;
}
.cn-grid--2 { grid-template-columns: 1fr; }
.cn-grid--3 { grid-template-columns: 1fr; }
.cn-grid--4 { grid-template-columns: 1fr 1fr; }
@media (min-width: 700px) {
  .cn-grid--2 { grid-template-columns: 1fr 1fr; }
  .cn-grid--3 { grid-template-columns: 1fr 1fr 1fr; }
  .cn-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.cn-card {
  background: var(--cn-bg-card);
  border: 1px solid var(--cn-line);
  border-radius: var(--cn-radius);
  padding: 20px;
  box-shadow: var(--cn-shadow);
}
.cn-card--product { display: flex; flex-direction: column; gap: 12px; }
.cn-card__media {
  aspect-ratio: 4/3;
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(201,162,83,0.2), rgba(255,255,255,0.04)),
    var(--cn-bg-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cn-gold);
  font-size: 0.75rem;
}
.cn-card__media--gold { color: #f5d78e; }
.cn-card__media--silver { color: #d7dce5; }
.cn-card__media--platinum { color: #c8d0dc; }
.cn-card__media--palladium { color: #b9c4b4; }
.cn-card__title { margin: 0; font-size: 1.02rem; font-weight: 700; line-height: 1.3; }
.cn-card__meta { margin: 0; font-size: 0.82rem; color: var(--cn-muted); }
.cn-card__price {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--cn-gold-bright);
}
.cn-card__actions { margin-top: auto; }

.cn-spot {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}
@media (min-width: 800px) { .cn-spot { grid-template-columns: repeat(4, 1fr); } }
.cn-spot__item {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
}
.cn-spot__metal { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cn-gold); }
.cn-spot__price { margin: 6px 0 0; font-size: 1.35rem; font-weight: 800; }
.cn-spot__asof { margin: 10px 0 0; font-size: 0.8rem; color: var(--cn-muted); }

.cn-steps { counter-reset: cn-step; display: grid; gap: 14px; }
@media (min-width: 800px) { .cn-steps { grid-template-columns: repeat(4, 1fr); } }
.cn-step {
  position: relative;
  padding: 18px 18px 18px 56px;
  border-radius: 14px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
}
.cn-step::before {
  counter-increment: cn-step;
  content: counter(cn-step);
  position: absolute;
  left: 16px;
  top: 18px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.8rem;
  background: var(--cn-gold);
  color: #111;
}
.cn-step h3 { margin: 0; font-size: 1rem; }
.cn-step p { margin: 6px 0 0; color: var(--cn-muted); font-size: 0.92rem; }

.cn-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(201,162,83,0.16);
  color: var(--cn-gold-bright);
}
.cn-badge--success { background: rgba(110,231,168,0.15); color: var(--cn-success); }
.cn-badge--warn { background: rgba(251,191,36,0.15); color: #fbbf24; }

.cn-table-wrap { overflow-x: auto; border: 1px solid var(--cn-line); border-radius: 14px; }
.cn-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.cn-table th, .cn-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--cn-line); }
.cn-table th { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--cn-muted); }
.cn-table tr:last-child td { border-bottom: 0; }

.cn-form { display: grid; gap: 14px; max-width: 560px; }
.cn-label { display: grid; gap: 6px; font-size: 0.86rem; font-weight: 700; }
.cn-check { display: flex; gap: 10px; align-items: flex-start; font-size: 0.9rem; color: var(--cn-muted); }

.cn-quote-summary { display: grid; gap: 12px; }
.cn-quote-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--cn-line);
  font-size: 1.15rem;
  font-weight: 800;
}
.cn-timer {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(201,162,83,0.12);
  color: var(--cn-gold-bright);
  font-weight: 700;
  font-size: 0.9rem;
}

.cn-timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.cn-timeline__item {
  position: relative;
  padding: 0 0 22px 36px;
  color: var(--cn-muted);
}
.cn-timeline__item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--cn-line);
}
.cn-timeline__item::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 18px;
  bottom: 0;
  width: 2px;
  background: var(--cn-line);
}
.cn-timeline__item:last-child::after { display: none; }
.cn-timeline__item.is-done { color: var(--cn-text); }
.cn-timeline__item.is-done::before { background: var(--cn-success); }
.cn-timeline__item.is-current { color: var(--cn-gold-bright); font-weight: 700; }
.cn-timeline__item.is-current::before { background: var(--cn-gold); box-shadow: 0 0 0 4px rgba(201,162,83,0.25); }

.cn-detail {
  display: grid;
  gap: 24px;
}
@media (min-width: 900px) {
  .cn-detail { grid-template-columns: 1.1fr 0.9fr; align-items: start; }
}
.cn-detail__media {
  min-height: 280px;
  border-radius: 18px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cn-gold);
}

.cn-admin {
  display: grid;
  gap: 20px;
}
@media (min-width: 960px) {
  .cn-admin { grid-template-columns: 220px 1fr; }
}
.cn-admin__nav {
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
  height: fit-content;
  position: sticky;
  top: 88px;
}
.cn-admin__nav a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--cn-muted);
  font-weight: 600;
  font-size: 0.92rem;
}
.cn-admin__nav a.is-active,
.cn-admin__nav a:hover {
  background: rgba(201,162,83,0.12);
  color: var(--cn-text);
}
.cn-stat {
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--cn-line);
  background: var(--cn-bg-card);
  color: inherit;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
a.cn-stat:hover {
  border-color: var(--cn-gold);
  transform: translateY(-1px);
}
.cn-stat__label { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cn-muted); font-weight: 800; }
.cn-stat__value { margin-top: 8px; font-size: 1.55rem; font-weight: 800; }

.cn-empty {
  padding: 36px 20px;
  text-align: center;
  color: var(--cn-muted);
  border: 1px dashed var(--cn-line);
  border-radius: 16px;
}
.cn-toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 80;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--cn-bg-card);
  border: 1px solid var(--cn-gold);
  box-shadow: var(--cn-shadow);
  max-width: 320px;
}
.cn-theme-toggle {
  background: transparent;
  border: 1px solid var(--cn-line);
  color: var(--cn-muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}
.cn-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.cn-pager {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
}
.cn-flash {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(201,162,83,0.12);
  border: 1px solid rgba(201,162,83,0.35);
  color: var(--cn-gold-bright);
  font-weight: 600;
}
.cn-flash--error {
  background: rgba(248,113,113,0.12);
  border-color: rgba(248,113,113,0.35);
  color: var(--cn-danger);
}

/* ── Ticker ──────────────────────────────────────────────────────────────── */
.cn-ticker {
  width: 100%;
  overflow: hidden;
  background: rgba(201, 162, 83, 0.08);
  border-bottom: 1px solid rgba(201, 162, 83, 0.18);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--cn-muted);
  padding: 6px 0;
  white-space: nowrap;
}
html[data-theme="light"] .cn-ticker { background: rgba(201, 162, 83, 0.06); }

.cn-ticker__track {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  padding: 0 22px;
  flex-wrap: nowrap;
}
.cn-ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cn-text);
}
.cn-ticker__symbol {
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--cn-gold);
  letter-spacing: 0.04em;
}
.cn-ticker__name { color: var(--cn-muted); font-weight: 600; }
.cn-ticker__price {
  font-weight: 800;
  color: var(--cn-gold-bright);
  font-size: 0.82rem;
}
.cn-ticker__sep { color: var(--cn-line); }
.cn-ticker__asof { font-size: 0.7rem; color: var(--cn-muted); letter-spacing: 0.02em; }

/* ── Badges ──────────────────────────────────────────────────────────────── */
.cn-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  line-height: 1;
  border: 1px solid transparent;
}
.cn-badge--gold    { background: rgba(212,184,122,0.15); border-color: rgba(212,184,122,0.4); color: var(--cn-gold-bright); }
.cn-badge--silver  { background: rgba(215,220,229,0.1);  border-color: rgba(215,220,229,0.3); color: #d7dce5; }
.cn-badge--platinum{ background: rgba(200,208,220,0.1);  border-color: rgba(200,208,220,0.3); color: #c8d0dc; }
.cn-badge--palladium{ background: rgba(185,196,180,0.1); border-color: rgba(185,196,180,0.3); color: #b9c4b4; }
.cn-badge--active  { background: rgba(110,231,168,0.1);  border-color: rgba(110,231,168,0.3); color: var(--cn-success); }
.cn-badge--pending { background: rgba(255,200,50,0.1);   border-color: rgba(255,200,50,0.3);  color: #ffd044; }
.cn-badge--corp    { background: rgba(201,162,83,0.15);  border-color: rgba(201,162,83,0.4);  color: var(--cn-gold); }
.cn-badge--seller_listed { background: rgba(255,255,255,0.05); border-color: var(--cn-line); color: var(--cn-muted); }
.cn-badge--corp_escrow   { background: rgba(201,162,83,0.12); border-color: rgba(201,162,83,0.35); color: var(--cn-gold); }
.cn-badge--auction { background: rgba(110,231,168,0.08); border-color: rgba(110,231,168,0.25); color: var(--cn-success); }

/* ── Dealer lock ─────────────────────────────────────────────────────────── */
.cn-dealer-lock {
  position: relative;
}
.cn-dealer-lock::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
  background: var(--cn-gold);
}

/* ── Listing card ────────────────────────────────────────────────────────── */
.cn-listing-card .cn-card__media { position: relative; }

/* ── Detail layout ───────────────────────────────────────────────────────── */
.cn-detail {
  display: grid;
  gap: 36px;
  align-items: start;
}
@media (min-width: 800px) {
  .cn-detail { grid-template-columns: 380px 1fr; }
}
.cn-detail__media {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  border-radius: var(--cn-radius);
  background:
    linear-gradient(145deg, rgba(201,162,83,0.18), rgba(255,255,255,0.04)),
    var(--cn-bg-2);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cn-gold);
}

/* ── Form ────────────────────────────────────────────────────────────────── */
.cn-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}
.cn-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 700;
  font-size: 0.9rem;
}
.cn-select {
  appearance: none;
  background: var(--cn-bg-card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c9a86a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  border: 1px solid var(--cn-line);
  color: var(--cn-text);
  font: inherit;
  font-size: 0.92rem;
  padding: 12px 38px 12px 14px;
  cursor: pointer;
}