:root {
  --background: #d8e8fb;
  --primary: #e31b2f;
  --secondary: #173d73;
  --accent: #3478c7;
  --text: #14213d;
  --card: #ffffff;
  --muted: rgba(20, 33, 61, 0.72);
  --shadow: rgba(23, 61, 115, 0.18);
  --section-gap: clamp(18px, 3vw, 28px);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 12%, rgba(227, 27, 47, 0.16), transparent 13rem),
    radial-gradient(circle at 88% 12%, rgba(52, 120, 199, 0.24), transparent 14rem),
    linear-gradient(180deg, var(--background), #f7fbff 105%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  display: grid;
  gap: var(--section-gap);
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: var(--section-gap) 0 24px;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 48px) 22px;
  text-align: center;
  border: 4px solid rgba(255, 255, 255, 0.74);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.36);
  box-shadow: 0 24px 70px var(--shadow);
}

.hero--compact { padding: 28px 22px; }

.eyebrow {
  margin: 0 0 12px;
  color: var(--secondary);
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 0;
  color: var(--primary);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(2.5rem, 8vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  text-shadow: 0 6px 0 rgba(23, 61, 115, 0.1);
}

h2 { color: var(--secondary); }

.hero__subtitle {
  color: var(--secondary);
  font-size: clamp(1.05rem, 3vw, 1.65rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__note {
  max-width: 680px;
  margin: 0 auto;
  color: var(--secondary);
  font-size: 1.1rem;
  font-weight: 800;
}

.hero__decor {
  position: absolute;
  color: var(--accent);
  font-size: clamp(2rem, 8vw, 5rem);
  opacity: 0.42;
}

.hero__decor--left { left: 6%; top: 18%; transform: rotate(-18deg); }
.hero__decor--right { right: 7%; bottom: 15%; transform: rotate(17deg); }

.card {
  margin-top: 0;
  padding: clamp(20px, 4vw, 32px);
  border-radius: 26px;
  background: color-mix(in srgb, var(--card) 94%, transparent);
  box-shadow: 0 18px 48px var(--shadow);
}

.auth-card { max-width: 460px; margin-left: auto; margin-right: auto; }

.login-card { align-self: center; }

.shell:has(.login-card:not(.hidden)) {
  min-height: 100vh;
  grid-template-rows: 1fr;
  align-items: center;
  padding-top: 0;
  padding-bottom: 0;
}

.app-grid, .admin-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(320px, 1.18fr);
  gap: var(--section-gap);
  align-items: start;
}

.admin-grid { grid-template-columns: repeat(2, minmax(280px, 1fr)); }
.details-card { grid-column: 1 / -1; }

.stack { display: grid; gap: 16px; }

label {
  display: grid;
  gap: 7px;
  color: var(--secondary);
  font-weight: 800;
}

input, select, textarea, button {
  width: 100%;
  border: 2px solid rgba(23, 61, 115, 0.14);
  border-radius: 14px;
  font: inherit;
}

input, select, textarea {
  padding: 12px 13px;
  background: #fff;
  color: var(--text);
}

input, select { min-height: 46px; }

button {
  cursor: pointer;
  padding: 13px 16px;
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
  font-weight: 900;
}

.button-secondary {
  width: auto;
  border-color: var(--secondary);
  background: var(--secondary);
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: 999px;
  border-color: var(--secondary);
  background: var(--secondary);
  font-size: 1rem;
  line-height: 1;
}

.icon-button.is-refreshing {
  animation: spin-refresh 0.55s ease-in-out;
}

@keyframes spin-refresh {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.section-heading h2 { margin-bottom: 0; }

.category-list, .admin-list { display: grid; gap: 14px; }

.detail-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
}
.detail-list div { display: grid; gap: 4px; }
.detail-list dt { color: var(--secondary); font-weight: 900; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.78rem; }
.detail-list dd { margin: 0; font-weight: 750; }
.detail-list a { color: var(--secondary); }
.detail-list a.disabled-link { pointer-events: none; text-decoration: none; }

.category-block {
  padding: 16px;
  border: 2px solid rgba(23, 61, 115, 0.1);
  border-radius: 18px;
  background: rgba(216, 232, 251, 0.38);
}

.category-block h3 {
  display: flex;
  justify-content: space-between;
  margin: 0 0 10px;
  color: var(--secondary);
}

.signup-item, .admin-row {
  display: grid;
  gap: 4px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.74);
}

.signup-item + .signup-item { margin-top: 8px; }

.muted { color: var(--muted); }
.message { min-height: 1.4em; color: var(--secondary); font-weight: 800; }
.message.error { color: var(--primary); }
.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;
}

.inline-form {
  display: grid;
  grid-template-columns: 1fr 90px 90px;
  gap: 10px;
  margin-bottom: 14px;
}

.theme-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 14px;
}

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

.check-row input { width: auto; }

.admin-row {
  grid-template-columns: minmax(120px, 1fr) 90px auto auto;
  align-items: center;
}

.admin-row button { width: auto; padding: 9px 12px; }

.admin-row input { min-width: 0; }

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 28px;
  text-align: center;
}

.site-footer a { color: var(--secondary); font-weight: 850; }

@media (max-width: 780px) {
  .app-grid, .admin-grid { grid-template-columns: 1fr; }
  .detail-list { grid-template-columns: 1fr; }
  .admin-row { grid-template-columns: 1fr; }
  .inline-form { grid-template-columns: 1fr; }
  .theme-form { grid-template-columns: 1fr; }
  .section-heading { align-items: start; flex-direction: column; }
}

@media (max-width: 520px) {
  :root { --section-gap: 16px; }
  .shell { width: min(100% - 20px, 1120px); padding-top: 12px; }
  .hero { border-width: 3px; border-radius: 24px; padding: 24px 14px; }
  .hero__decor { display: none; }
  h1 { font-size: clamp(2.1rem, 14vw, 3.4rem); letter-spacing: 0.02em; }
  h2 { font-size: 1.35rem; }
  .card { border-radius: 20px; padding: 18px; }
  .detail-list { gap: 14px; }
  .section-heading { flex-direction: row; align-items: center; }
  .site-footer { width: min(100% - 20px, 1120px); }
}