:root {
  --auth-bg: #eef4ff;
  --auth-bg-accent: #dce9ff;
  --auth-text: #1d2533;
  --auth-muted: #5b667d;
  --auth-card-bg: #ffffff;
  --auth-card-border: #dbe4f2;
  --auth-shadow: 0 18px 40px rgba(17, 28, 51, 0.14);
  --auth-primary: #1f4ea8;
  --auth-primary-hover: #173a7c;
  --auth-focus: rgba(31, 78, 168, 0.25);
  --auth-input-border: #c8d4e7;
  --auth-input-bg: #ffffff;
  --auth-input-text: #1d2533;
  --auth-error-bg: #fff1f1;
  --auth-error-border: #f7caca;
  --auth-error-text: #7f1d1d;
  --auth-ok-bg: #ecfdf5;
  --auth-ok-border: #a7f3d0;
  --auth-ok-text: #166534;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 12% 12%, var(--auth-bg-accent) 0, transparent 55%),
    linear-gradient(180deg, #f7fbff 0%, var(--auth-bg) 100%);
  color: var(--auth-text);
}

.shell {
  max-width: 560px;
  margin: 0 auto;
  padding: 3rem 1rem;
}

.card {
  background: var(--auth-card-bg);
  border: 1px solid var(--auth-card-border);
  border-radius: 16px;
  box-shadow: var(--auth-shadow);
  padding: 2rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.74rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--auth-primary);
  font-weight: 800;
}

h1 {
  margin: 0 0 0.55rem;
  font-size: 1.9rem;
  line-height: 1.18;
  font-family: "Outfit", "Manrope", "Segoe UI", Arial, sans-serif;
}

p {
  margin: 0;
  color: var(--auth-muted);
  line-height: 1.5;
}

form {
  margin-top: 1.1rem;
}

label {
  display: block;
  font-weight: 700;
  margin: 1rem 0 0.35rem;
}

input:not([type="checkbox"]) {
  width: 100%;
  padding: 0.82rem 0.9rem;
  border: 1px solid var(--auth-input-border);
  border-radius: 10px;
  background: var(--auth-input-bg);
  color: var(--auth-input-text);
  font-size: 1rem;
}

input:not([type="checkbox"]):focus {
  outline: none;
  border-color: var(--auth-primary);
  box-shadow: 0 0 0 0.2rem var(--auth-focus);
}

label.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.62rem;
  margin: 1rem 0 0.35rem;
  font-weight: 600;
  line-height: 1.35;
}

label.checkbox-row input[type="checkbox"] {
  width: 1.18rem;
  height: 1.18rem;
  margin: 0;
  flex: 0 0 auto;
  accent-color: var(--auth-primary);
}

.meta.checkbox-help {
  margin-top: 0.2rem;
  margin-left: calc(1.18rem + 0.62rem);
  font-size: 0.84rem;
  line-height: 1.35;
}

button {
  width: 100%;
  margin-top: 1.3rem;
  border: 0;
  background: linear-gradient(180deg, #2c64c7 0%, var(--auth-primary) 100%);
  color: #fff;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

button:hover,
button:focus {
  background: linear-gradient(180deg, #2358b8 0%, var(--auth-primary-hover) 100%);
}

.error {
  background: var(--auth-error-bg);
  color: var(--auth-error-text);
  border: 1px solid var(--auth-error-border);
  border-radius: 10px;
  padding: 0.85rem 0.9rem;
  margin-top: 1rem;
}

.ok {
  background: var(--auth-ok-bg);
  color: var(--auth-ok-text);
  border: 1px solid var(--auth-ok-border);
  border-radius: 10px;
  padding: 0.85rem 0.9rem;
  margin-top: 1rem;
}

.meta {
  margin-top: 0.95rem;
  font-size: 0.92rem;
  color: var(--auth-muted);
}

.meta.powered-by {
  margin-top: 0.55rem;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.meta a {
  color: var(--auth-primary);
  font-weight: 600;
  text-decoration: none;
}

.meta a:hover {
  color: var(--auth-primary-hover);
  text-decoration: underline;
}

.auth-links {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.auth-link-form {
  margin: 0;
}

.auth-link-button {
  width: auto;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--auth-primary);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.auth-link-button:hover,
.auth-link-button:focus {
  background: none;
  color: var(--auth-primary-hover);
  text-decoration: underline;
}

@media (max-width: 640px) {
  .shell {
    padding: 1.2rem 0.75rem;
  }

  .card {
    border-radius: 14px;
    padding: 1.2rem;
  }

  h1 {
    font-size: 1.55rem;
  }
}