:root {
  --bg-a: #e0efff;
  --bg-b: #f6fbf3;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --line: #cbd5e1;
  --primary: #14532d;
  --primary-strong: #113f24;
  --primary-soft: #dcfce7;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, #dbeafe 0%, transparent 35%),
    radial-gradient(circle at 100% 100%, #dcfce7 0%, transparent 45%),
    linear-gradient(145deg, var(--bg-a), var(--bg-b));
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.auth-card {
  width: min(560px, 100%);
  background: var(--card);
  border-radius: 18px;
  border: 1px solid #ffffff;
  box-shadow: var(--shadow);
  padding: 1.4rem;
}

.login-logo-wrap {
  display: flex;
  justify-content: center;
  margin: 0 0 0.5rem;
}

.login-logo {
  width: 76px;
  height: 76px;
  object-fit: contain;
}

.eyebrow {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  font-weight: 700;
}

h1 {
  margin: 0.35rem 0;
  font-size: clamp(1.4rem, 1.1rem + 1.1vw, 2rem);
}

.subtitle {
  margin: 0 0 1rem;
  color: var(--muted);
}

.auth-tabs {
  display: flex;
  gap: 0.55rem;
  margin: 1rem 0;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.65rem;
}

.auth-tab {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
  font: inherit;
  color: var(--muted);
}

.auth-tab[aria-selected="true"] {
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-color: #86efac;
  font-weight: 600;
}

.auth-panel form {
  display: grid;
  gap: 0.5rem;
}

.hidden-block {
  display: none;
}

label {
  margin-top: 0.35rem;
  font-weight: 600;
}

input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.65rem;
  font: inherit;
}

input:focus {
  outline: 2px solid #93c5fd;
  outline-offset: 1px;
  border-color: #60a5fa;
}

.primary-btn,
.secondary-btn {
  margin-top: 0.55rem;
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

.inline-actions {
  display: flex;
  justify-content: flex-end;
}

.text-btn {
  border: 0;
  background: transparent;
  color: #1d4ed8;
  padding: 0;
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: underline;
}

.primary-btn {
  border: 1px solid #166534;
  background: #166534;
  color: #fff;
}

.primary-btn:hover {
  background: #14532d;
}

.secondary-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

.secondary-btn:hover {
  border-color: #94a3b8;
}

.confirm-form {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.confirm-form h2 {
  margin: 0;
  font-size: 1rem;
}

.help {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.status-message {
  margin: 0.2rem 0 0;
  min-height: 1.2rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.status-message.error {
  color: #b91c1c;
}

.status-message.success {
  color: #166534;
}

@media (max-width: 560px) {
  .auth-card {
    padding: 1rem;
  }
}