:root {
  --blue-900: #c1272d;
  --blue-700: #d63031;
  --blue-600: #e74c3c;
  --blue-500: #e74c3c;
  --gold-700: #1b5e9f;
  --gold-600: #2980b9;
  --silver-500: #c0c6d0;
  --silver-300: #d9dee7;
  --silver-200: #e7ebf2;
  --silver-100: #f6f8fc;
  --radius: 16px;
  --shadow: 0 10px 22px rgba(2, 6, 23, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial;
  background: linear-gradient(180deg, var(--silver-100), #eef2f7);
  color: #0f172a;
}

.wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 22px;
}

.card {
  width: 100%;
  max-width: 720px;
  background: #fff;
  border: 1px solid var(--silver-300);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: linear-gradient(90deg, var(--blue-700), var(--blue-500));
  color: #fff;
}

.card-head .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.15);
  display: grid;
  place-items: center;
}

.auth-icon {
  font-size: 22px;
}

.card-head h1 {
  font-size: 22px;
  line-height: 1.1;
  margin: 0;
  font-weight: 700;
}

.card-head p {
  margin: 2px 0 0;
  font-size: 13px;
  opacity: 0.9;
}

.card-body {
  padding: 24px 22px 26px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
}

.input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--silver-300);
  border-radius: 12px;
  font-size: 14px;
  outline: none;
  transition: border 0.15s ease;
}

.input:focus {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(180deg, #c1272d, #c1272d);
  color: #fff;
  font-weight: 700;
  border: none;
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.03);
}

.back {
  display: inline-block;
  margin-top: 12px;
  color: #c1272d;
  font-weight: 600;
  text-decoration: none;
}

.alert {
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 600;
}

.alert--ok {
  background: #ecfdf5;
  border: 1px solid #bbf7d0;
  color: #065f46;
}

.alert--err {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert--info {
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}

.auth-block {
  margin-bottom: 16px;
}

.auth-error {
  margin-top: 8px;
}