:root {
  color-scheme: light;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #efefef;
  color: #1f2937;
}

.header {
  max-width: 1160px;
  margin: 22px auto 0;
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid #e6e6e6;
  color: #1f2937;
  padding: 18px 24px;
}

.brand {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.brand-logo {
  height: 44px;
  width: auto;
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.logout-form {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-name {
  font-size: 13px;
  color: #6b7280;
  font-weight: 600;
}

.nav a {
  color: #4b5563;
  text-decoration: none;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e5e7eb;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 0 26px;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 18px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(250px, 1fr));
  gap: 12px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  font-size: 14px;
  gap: 6px;
}

input,
select,
textarea,
button {
  font: inherit;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
}

button {
  border: none;
  background: #7c2d12;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.danger-button {
  background: #b91c1c;
}

.pagination {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pagination-actions {
  display: flex;
  gap: 8px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  color: #1f2937;
  text-decoration: none;
  background: #fff;
  font-weight: 600;
}

.checkbox {
  flex-direction: row;
  align-items: center;
}

.checkbox input {
  width: 16px;
  height: 16px;
}

.full-width {
  grid-column: 1 / -1;
}

.message {
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 10px;
}

.message.success {
  background: #dcfce7;
  color: #166534;
}

.message.error {
  background: #fee2e2;
  color: #991b1b;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
  padding: 10px 8px;
  font-size: 14px;
}

th {
  font-weight: 700;
  background: #f9fafb;
}

.status-pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.status-valid {
  background: #dcfce7;
  color: #166534;
}

.status-invalid {
  background: #fee2e2;
  color: #991b1b;
}

.status-scheduled {
  background: #e0e7ff;
  color: #3730a3;
}

.muted {
  color: #6b7280;
  font-size: 12px;
  margin-top: 4px;
}

.coupons-layout {
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 16px;
  align-items: start;
}

.coupon-form-card {
  position: sticky;
  top: 12px;
}

.coupon-form-stack {
  display: grid;
  gap: 11px;
}

.coupon-form-stack button {
  margin-top: 4px;
}

.cta-button {
  background: #f97316;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.coupon-list-card h2 {
  margin-bottom: 14px;
}

.coupon-item-list {
  display: grid;
  gap: 11px;
}

.coupon-item {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  background: #f8f8f8;
  border: 1px solid #ececec;
  border-radius: 10px;
  padding: 14px 16px;
}

.coupon-main h3 {
  margin: 0 0 3px;
}

.coupon-code {
  margin: 0 0 6px;
  color: #4b5563;
  font-weight: 700;
}

.coupon-meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-size: 13px;
}

.coupon-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border: 1px solid #ececec;
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
  padding: 24px;
}

.auth-logo {
  height: 48px;
  width: auto;
}

.auth-card h1 {
  margin: 10px 0 14px;
}

.auth-form {
  display: grid;
  gap: 12px;
}

.auth-footer {
  margin: 14px 0 0;
  color: #4b5563;
  font-size: 14px;
}

.auth-footer a {
  color: #f97316;
  font-weight: 700;
  text-decoration: none;
}

.profile-card {
  max-width: 520px;
}

.admin-actions {
  display: flex;
  gap: 8px;
}

.simple-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.usages-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 16px;
  align-items: start;
}

.usage-form-card {
  position: sticky;
  top: 12px;
}

.usage-form-stack {
  display: grid;
  gap: 11px;
}

.usage-form-stack .checkbox {
  margin-top: 2px;
}

.usage-list-card h2 {
  margin-bottom: 14px;
}

@media (max-width: 840px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .filter-grid {
    grid-template-columns: 1fr;
  }

  .coupons-layout {
    grid-template-columns: 1fr;
  }

  .usages-layout {
    grid-template-columns: 1fr;
  }

  .coupon-form-card {
    position: static;
  }

  .usage-form-card {
    position: static;
  }

  .coupon-item {
    flex-direction: column;
  }

  .coupon-side {
    align-items: flex-start;
  }

  .header-row {
    flex-direction: column;
    align-items: flex-start;
  }
}