:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #080a10;
  color: #f7f7fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(96, 165, 250, 0.16), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(34, 197, 94, 0.12), transparent 28%),
    #080a10;
}

a {
  color: #7dd3fc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  color: #fff;
  font-weight: 800;
}

.nav-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
}

.nav-actions form {
  margin: 0;
}

.hero {
  margin-bottom: 24px;
}

.hero h1 {
  margin: 8px 0;
  font-size: clamp(32px, 6vw, 56px);
}

.hero p {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.62);
}

.eyebrow {
  color: #7dd3fc !important;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.card,
.notice {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.22);
}

.card {
  margin-top: 18px;
  padding: 24px;
}

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

.card h2 {
  margin: 0 0 18px;
}

.notice {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
}

.notice.success {
  border-color: rgba(74, 222, 128, 0.35);
  color: #bbf7d0;
}

.notice.error {
  border-color: rgba(248, 113, 113, 0.35);
  color: #fecaca;
}

.balance-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  border: 1px solid rgba(125, 211, 252, 0.22);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.16), rgba(34, 197, 94, 0.1));
  padding: 20px 24px;
}

.balance-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
}

.balance-card strong {
  display: block;
  margin-top: 4px;
  color: #7dd3fc;
  font-size: 38px;
  line-height: 1;
}

.balance-card span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.flash-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.form {
  display: grid;
  gap: 18px;
}

label,
.label {
  display: grid;
  gap: 8px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.32);
  color: #fff;
  font: inherit;
  padding: 12px 14px;
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
}

.preset-card {
  position: relative;
  display: grid;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.22);
  cursor: pointer;
  padding: 16px;
}

.preset-card input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.preset-card span {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
}

.preset-card small {
  color: rgba(255, 255, 255, 0.52);
}

.preset-card:has(input:checked) {
  border-color: rgba(125, 211, 252, 0.75);
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 0 1px rgba(125, 211, 252, 0.22);
}

.pay-types {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.radio-card {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
}

button {
  width: fit-content;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #38bdf8, #22c55e);
  color: #031015;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  padding: 12px 22px;
}

button:disabled {
  cursor: not-allowed;
  filter: grayscale(1);
  opacity: 0.5;
}

.hint,
.empty {
  color: rgba(255, 255, 255, 0.54);
  font-size: 14px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 8px;
  text-align: left;
  white-space: nowrap;
}

th {
  color: rgba(255, 255, 255, 0.48);
  font-weight: 600;
}

code,
pre {
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  color: #bae6fd;
  padding: 2px 6px;
}

pre {
  overflow-x: auto;
  padding: 12px;
}

.status {
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 700;
}

.status.pending {
  background: rgba(251, 191, 36, 0.14);
  color: #fde68a;
}

.status.paid {
  background: rgba(74, 222, 128, 0.14);
  color: #bbf7d0;
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.actions form {
  margin: 0;
}

.link-button {
  border: 0;
  background: transparent;
  color: #7dd3fc;
  padding: 0;
  font-weight: 500;
}

.details {
  display: grid;
  gap: 12px;
}

.details div {
  display: grid;
  gap: 4px;
}

.details dt {
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
}

.details dd {
  margin: 0;
}

.back {
  margin-top: 18px;
}