:root {
  --bg: #f5f3ee;
  --panel: #ffffff;
  --line: #e0d9cd;
  --line-soft: #eee7dc;
  --text: #2b251f;
  --muted: #766b5d;
  --faint: #aaa094;
  --card-text: #35291c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
button, input { font: inherit; }
button { cursor: pointer; }
.is-hidden { display: none !important; }

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 24px 34px 22px;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 17px;
  font-weight: 720;
  color: #302820;
}
.countdown {
  background: #24201b;
  color: #f6f1e8;
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 12px;
  box-shadow: 0 14px 30px rgba(0,0,0,.13);
}
main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 34px 0 24px;
}
.redeem-card, .admin-card {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 22px 50px rgba(34,28,20,.08);
}
.eyebrow, .redeem-card p, .admin-card p, .notice {
  color: var(--muted);
  font-size: 13px;
}
h1 {
  margin: 8px 0 22px;
  font-size: 26px;
  color: var(--text);
}
input {
  width: 100%;
  height: 46px;
  border: 1px solid #ded6c8;
  border-radius: 10px;
  background: #faf8f4;
  color: var(--text);
  padding: 0 14px;
  margin-bottom: 12px;
}
.remember-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}
.remember-row input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: #24201b;
}
.redeem-card button, .admin-card button {
  width: 100%;
  height: 46px;
  border: 0;
  border-radius: 10px;
  background: #24201b;
  color: #fffaf2;
  font-weight: 640;
}
.notice { min-height: 20px; margin-top: 14px; }
.notice.is-error { color: #c62828; font-weight: 650; }
.code-time.is-error { color: #c62828; font-weight: 650; }

.receiver {
  width: min(560px, 100%);
}
.sim-card {
  width: min(520px, 100%);
  height: 315px;
  margin: 0 auto;
  background: linear-gradient(145deg,#efe3bf 0%,#dbc58c 50%,#f5eccc 100%);
  border: 1px solid #c7ad6a;
  border-radius: 22px;
  box-shadow: 0 28px 72px rgba(68,48,18,.18), inset 0 1px 0 rgba(255,255,255,.64);
  position: relative;
  overflow: hidden;
}
.sim-border, .sim-dash, .sim-cut, .sim-chip, .sim-meta, .sim-phone { position: absolute; }
.sim-border {
  inset: 17px;
  border: 1px solid rgba(113,84,34,.26);
  border-radius: 15px;
}
.sim-dash {
  inset: 35px;
  border: 1px dashed rgba(113,84,34,.22);
  border-radius: 12px;
}
.sim-cut {
  right: -1px;
  top: -1px;
  width: 104px;
  height: 104px;
  background: linear-gradient(135deg,#fff7df,#ead59d);
  border-left: 1px solid rgba(113,84,34,.28);
  border-bottom: 1px solid rgba(113,84,34,.28);
  clip-path: polygon(100% 0,100% 100%,0 0);
}
.sim-chip {
  left: 38px;
  top: 38px;
  width: 76px;
  height: 58px;
  border-radius: 10px;
  background: linear-gradient(145deg,#d6b253,#f6dc89);
  border: 1px solid #9f803b;
}
.sim-chip span:nth-child(1), .sim-chip span:nth-child(2) {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid rgba(91,66,25,.42);
}
.sim-chip span:nth-child(1) { top: 18px; }
.sim-chip span:nth-child(2) { bottom: 18px; }
.sim-chip span:nth-child(3), .sim-chip span:nth-child(4) {
  position: absolute;
  top: 0;
  bottom: 0;
  border-left: 1px solid rgba(91,66,25,.42);
}
.sim-chip span:nth-child(3) { left: 25px; }
.sim-chip span:nth-child(4) { right: 25px; }
.sim-meta {
  right: 34px;
  top: 42px;
  text-align: right;
  max-width: 250px;
}
.sim-meta div {
  font-size: 11px;
  color: #765f36;
  letter-spacing: .08em;
}
.sim-meta span {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: #967c49;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sim-phone {
  left: 38px;
  right: 38px;
  bottom: 42px;
}
.sim-phone span {
  display: block;
  color: #7e673c;
  font-size: 12px;
  margin-bottom: 8px;
}
.sim-phone div {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sim-phone strong {
  font-size: 24px;
  font-weight: 740;
  color: var(--card-text);
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.icon-button {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 1px solid rgba(105,78,31,.32);
  background: rgba(255,255,255,.40);
  color: #514027;
}
.code-panel {
  width: min(520px, 100%);
  margin: 16px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 17px 18px;
  box-shadow: 0 20px 48px rgba(34,28,20,.06);
}
#acquireButton {
  width: 100%;
  height: 44px;
  margin-bottom: 4px;
  border: 0;
  border-radius: 10px;
  background: #24201b;
  color: #fffaf2;
  font-weight: 640;
}
.code-head, .latest-code, footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.code-head span, .history-title {
  display: block;
  font-size: 13px;
  color: var(--muted);
}
.code-head small, .code-time {
  display: block;
  font-size: 12px;
  color: #9b8f7d;
  margin-top: 4px;
}
.text-action {
  border: 0;
  border-bottom: 1px solid #cfc5b8;
  background: transparent;
  color: #7a7063;
  padding: 0;
  font-size: 12px;
}
.latest-code strong {
  font-size: 42px;
  font-weight: 760;
  color: var(--text);
  line-height: 1;
}
.latest-code.is-empty strong {
  font-size: 18px;
  font-weight: 620;
  color: #8f8376;
}
.latest-code button {
  height: 34px;
  border-radius: 999px;
  border: 1px solid #ded6ca;
  background: #faf8f4;
  color: #5a5046;
  padding: 0 12px;
}
.latest-code button:disabled {
  cursor: not-allowed;
  opacity: .42;
}
.divider {
  height: 1px;
  background: var(--line-soft);
  margin: 16px 0 12px;
}
.history-list {
  display: grid;
  gap: 7px;
  margin-top: 10px;
}
.history-row {
  display: grid;
  grid-template-columns: 110px 1fr 44px;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 9px 11px;
}
.history-row strong {
  font-size: 18px;
  font-weight: 680;
  color: #6d6257;
}
.history-row span, .history-row button {
  color: var(--faint);
  font-size: 12px;
}
.history-row button {
  border: 0;
  background: transparent;
  text-align: right;
}
footer {
  width: 100%;
  border-top: 1px solid rgba(205,196,181,.55);
  padding-top: 14px;
  color: #9a8f82;
  font-size: 12px;
}
footer b { color: #6d6257; }
.admin-page {
  background: #f5f3ee;
}
.admin-page main, .admin-shell {
  min-height: 100vh;
}
.admin-shell {
  width: 100%;
  padding: 28px;
}
.admin-login {
  margin: auto;
}
.admin-dashboard {
  width: min(1280px, 100%);
  margin: 0 auto;
}
.admin-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.admin-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-kicker {
  color: #8d8275;
  font-size: 13px;
  margin-bottom: 6px;
}
.admin-top h1 {
  margin: 0;
  font-size: 28px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 18px 40px rgba(34,28,20,.05);
}
.stat-card span {
  display: block;
  color: #8d8275;
  font-size: 12px;
  margin-bottom: 8px;
}
.stat-card strong {
  color: #2b251f;
  font-size: 26px;
}
.admin-workbench {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.admin-panel, .admin-table-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 20px 48px rgba(34,28,20,.06);
}
.admin-panel > button,
.admin-table-panel .ghost-button {
  height: 40px;
  border: 0;
  border-radius: 10px;
  background: #24201b;
  color: #fffaf2;
  padding: 0 14px;
  font-weight: 640;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.panel-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-head h2 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--text);
}
.panel-head p {
  margin: 0;
  color: #8d8275;
  font-size: 12px;
}
.admin-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.ghost-button {
  width: auto;
  padding: 0 14px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: #5a5046;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 130px;
  gap: 10px;
}
select, textarea {
  width: 100%;
  border: 1px solid #ded6c8;
  border-radius: 10px;
  background: #faf8f4;
  color: var(--text);
  padding: 0 14px;
  margin-bottom: 12px;
  font: inherit;
}
select {
  height: 46px;
}
textarea {
  min-height: 170px;
  padding: 14px;
  resize: vertical;
  line-height: 1.6;
}
.table-scroll {
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  white-space: nowrap;
}
th {
  color: #8d8275;
  font-weight: 600;
}
td {
  color: #5f554c;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 12px;
  border: 1px solid #e4ddd2;
}
.status-new { color: #7a7063; background: #faf8f4; }
.status-active { color: #375941; background: #edf6ef; border-color: #d7eadb; }
.status-archived { color: #8a625d; background: #f8eeee; border-color: #edd8d5; }
.row-action {
  border: 0;
  border-bottom: 1px solid #cfc5b8;
  background: transparent;
  color: #7a7063;
  padding: 0;
  font-size: 12px;
}
.card-link {
  border: 0;
  background: transparent;
  color: #3a3028;
  font-weight: 720;
  padding: 0;
  border-bottom: 1px solid rgba(90,80,70,.26);
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(34, 28, 20, .26);
  backdrop-filter: blur(6px);
}
.detail-modal {
  width: min(720px, 100%);
  max-height: min(760px, calc(100vh - 48px));
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 30px 80px rgba(34,28,20,.22);
}
.detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}
.detail-head h2 {
  margin: 0;
  color: var(--text);
  font-size: 24px;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.settings-grid label {
  display: block;
}
.settings-grid span {
  display: block;
  color: #8d8275;
  font-size: 12px;
  margin-bottom: 7px;
}
.settings-grid input {
  margin-bottom: 0;
}
.modal-primary {
  width: 100%;
  height: 42px;
  border: 0;
  border-radius: 10px;
  background: #24201b;
  color: #fffaf2;
  font-weight: 640;
}
.detail-item {
  border: 1px solid var(--line-soft);
  border-radius: 12px;
  padding: 12px;
  background: #fcfbf8;
}
.detail-item span {
  display: block;
  color: #8d8275;
  font-size: 12px;
  margin-bottom: 7px;
}
.detail-item strong {
  color: #3f362f;
  font-size: 13px;
  overflow-wrap: anywhere;
}
.detail-section h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 16px;
}
.detail-codes {
  display: grid;
  gap: 8px;
}
.detail-code-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 11px;
  padding: 10px 12px;
}
.detail-code-row strong {
  color: #5f554c;
  font-size: 18px;
}
.detail-code-row span,
.empty-detail {
  color: #9a8f82;
  font-size: 12px;
}

@media (max-width: 640px) {
  .page-shell { padding: 18px 16px; }
  .topbar, footer { align-items: flex-start; flex-direction: column; }
  main { place-items: start center; }
  .sim-card { height: 250px; border-radius: 18px; }
  .sim-phone strong { font-size: 20px; }
  .latest-code strong { font-size: 34px; }
  .history-row { grid-template-columns: 88px 1fr 38px; }
  .admin-shell { padding: 16px; }
  .admin-top { align-items: flex-start; flex-direction: column; }
  .admin-actions { width: 100%; }
  .admin-actions .ghost-button { flex: 1; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-workbench { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  .detail-code-row { grid-template-columns: 1fr; }
}