:root {
  --knauf-blue: #00aeef;
  --knauf-blue-dark: #0089bd;
  --knauf-error: #d32f2f;
  --knauf-error-dark: #b71c1c;
  --knauf-dark: #2d2d2d;
  --knauf-gray: #6f6f6f;
  --knauf-gray-light: #f2f2f2;
  --knauf-border: #e0e0e0;
  --knauf-white: #ffffff;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  color: var(--knauf-dark);
  background: var(--knauf-white);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--knauf-blue);
}

.app-shell {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.site-header {
  border-bottom: 4px solid var(--knauf-blue);
  background: var(--knauf-white);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-header__logo img {
  height: 28px;
  width: auto;
  display: block;
}

.site-header__tagline {
  font-size: 14px;
  color: var(--knauf-gray);
}

main {
  flex: 1;
  width: 100%;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.page--narrow {
  max-width: 640px;
}

.hero {
  background: var(--knauf-gray-light);
  border-bottom: 1px solid var(--knauf-border);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.hero h1 {
  font-size: 32px;
  margin: 0 0 12px;
}

.hero p {
  font-size: 16px;
  color: var(--knauf-gray);
  max-width: 640px;
  margin: 0;
  line-height: 1.6;
}

.site-footer {
  background: var(--knauf-dark);
  color: #d8d8d8;
  font-size: 13px;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a {
  color: #ffffff;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-footer__brand img {
  height: 16px;
  width: auto;
  display: block;
}

/* ---------- Form ---------- */

.form-section h2 {
  font-size: 20px;
  margin: 0 0 4px;
  border-left: 4px solid var(--knauf-blue);
  padding-left: 12px;
}

.form-section + .form-section {
  margin-top: 40px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

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

@media (max-width: 600px) {
  .field-grid {
    grid-template-columns: 1fr;
  }
}

.field label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}

.field input,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--knauf-border);
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  background: var(--knauf-white);
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--knauf-blue);
  outline-offset: 1px;
}

.field-error {
  color: var(--knauf-error);
  font-size: 13px;
  margin-top: 4px;
}

/* ---------- Prize boxes ---------- */

.prize-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.prize-card {
  position: relative;
  display: block;
  border: 2px solid var(--knauf-border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  background: var(--knauf-white);
  text-align: left;
  padding: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.prize-card__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.prize-card:hover {
  border-color: var(--knauf-blue);
}

.prize-card.is-selected,
.prize-card:has(.prize-card__input:checked) {
  border-color: var(--knauf-blue);
  box-shadow: 0 0 0 1px var(--knauf-blue);
}

.prize-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: contain;
  display: block;
  background: var(--knauf-gray-light);
}

.prize-card__body {
  padding: 14px;
}

.prize-card__name {
  font-weight: 700;
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.prize-card__radio {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--knauf-gray);
  display: inline-block;
  flex: none;
}

.prize-card.is-selected .prize-card__radio,
.prize-card:has(.prize-card__input:checked) .prize-card__radio {
  border-color: var(--knauf-blue);
  background: var(--knauf-blue);
  box-shadow: inset 0 0 0 3px var(--knauf-white);
}

.prize-card__desc {
  margin: 0;
  font-size: 13px;
  color: var(--knauf-gray);
  line-height: 1.5;
}

/* ---------- Buttons / messages ---------- */

.btn {
  display: inline-block;
  background: var(--knauf-blue);
  color: var(--knauf-white);
  border: none;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 32px;
}

.btn:hover {
  background: var(--knauf-blue-dark);
}

.btn:disabled {
  background: var(--knauf-gray);
  cursor: not-allowed;
}

.btn--secondary {
  background: var(--knauf-dark);
}

.btn--danger {
  background: var(--knauf-error);
}

.btn--danger:hover {
  background: var(--knauf-error-dark);
}

.btn--small {
  margin-top: 0;
  padding: 6px 14px;
  font-size: 13px;
}

.alert {
  padding: 12px 16px;
  border-radius: 4px;
  font-size: 14px;
  margin-top: 24px;
}

.alert--error {
  background: #fdeceb;
  color: var(--knauf-error-dark);
  border: 1px solid #f5c2c2;
}

.alert--success {
  background: #eaf6ec;
  color: #1f7a32;
  border: 1px solid #bfe6c5;
}

/* ---------- Admin ---------- */

.admin-table-wrap {
  overflow-x: auto;
  margin-top: 24px;
}

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

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--knauf-border);
  white-space: nowrap;
}

.admin-table th {
  background: var(--knauf-gray-light);
  font-weight: 700;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.admin-toolbar__count {
  color: var(--knauf-gray);
  font-size: 14px;
}

.login-card {
  border: 1px solid var(--knauf-border);
  border-radius: 8px;
  padding: 32px;
  margin-top: 32px;
}