:root {
  --auth-bg: #edf3fb;
  --auth-card: rgba(255, 255, 255, 0.92);
  --auth-border: rgba(98, 121, 165, 0.16);
  --auth-text: #111827;
  --auth-muted: #5b6678;
  --auth-primary: #0f172a;
  --auth-accent: #0066cc;
  --auth-accent-soft: rgba(0, 102, 204, 0.1);
  --auth-danger: #b42318;
  --auth-success: #067647;
  --auth-radius-xl: 30px;
  --auth-radius-lg: 18px;
  --auth-shadow: 0 32px 80px rgba(15, 23, 42, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  padding: 28px 18px;
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--auth-text);
  background:
    radial-gradient(circle at 10% 12%, rgba(56, 189, 248, 0.18), transparent 24%),
    radial-gradient(circle at 86% 10%, rgba(59, 130, 246, 0.16), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, var(--auth-bg) 100%);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.auth-shell {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.auth-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.auth-brand {
  font-family: "Inter", "Segoe UI", sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.auth-nav-links {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.auth-nav-link {
  font-size: 0.92rem;
  color: var(--auth-muted);
  text-decoration: none;
}

.auth-nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0.65rem 1rem;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.72);
}

.auth-layout {
  display: flex;
  justify-content: center;
}

.auth-card {
  border: 1px solid var(--auth-border);
  border-radius: var(--auth-radius-xl);
  background: var(--auth-card);
  backdrop-filter: blur(18px);
  box-shadow: var(--auth-shadow);
}

.auth-card {
  width: min(100%, 520px);
  padding: 2rem;
}

.auth-card-header h2 {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  font-size: 1.9rem;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.auth-card-header p {
  margin: 0.7rem 0 0;
  color: var(--auth-muted);
  line-height: 1.7;
}

.auth-mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin: 1.6rem 0 1.2rem;
  padding: 0.35rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.04);
}

.auth-mode-button {
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--auth-muted);
  font: inherit;
  font-weight: 700;
  padding: 0.75rem 1rem;
  cursor: pointer;
}

.auth-mode-button.is-active {
  background: var(--auth-primary);
  color: #ffffff;
}

.auth-status {
  display: none;
  margin: 1rem 0 1.25rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  line-height: 1.65;
}

.auth-status.is-visible {
  display: block;
}

.auth-status.info {
  color: #1849a9;
  background: #eef4ff;
  border-color: #c7d7fe;
}

.auth-status.success {
  color: var(--auth-success);
  background: #ecfdf3;
  border-color: #abefc6;
}

.auth-status.error {
  color: var(--auth-danger);
  background: #fef3f2;
  border-color: #fecdca;
}

.auth-form {
  display: grid;
  gap: 1rem;
}

.auth-form[hidden] {
  display: none;
}

.auth-field {
  display: grid;
  gap: 0.45rem;
}

.auth-label {
  font-size: 0.84rem;
  font-weight: 700;
}

.auth-input {
  width: 100%;
  border: 1px solid rgba(98, 121, 165, 0.18);
  border-radius: 16px;
  padding: 0.95rem 1rem;
  font: inherit;
  color: var(--auth-text);
  background: rgba(255, 255, 255, 0.92);
}

.auth-input:focus {
  outline: 2px solid rgba(0, 102, 204, 0.14);
  border-color: rgba(0, 102, 204, 0.44);
}

.auth-submit,
.auth-secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border: none;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.auth-submit {
  background: var(--auth-primary);
  color: #ffffff;
}

.auth-submit[disabled],
.auth-secondary-button[disabled] {
  cursor: wait;
  opacity: 0.75;
}

.auth-helper {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-top: 0.25rem;
  flex-wrap: wrap;
}

.auth-inline-link {
  color: var(--auth-accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.auth-footnote {
  margin: 1.1rem 0 0;
  color: var(--auth-muted);
  font-size: 0.84rem;
  line-height: 1.7;
}

.auth-secondary-button {
  background: #ffffff;
  color: var(--auth-text);
  border: 1px solid rgba(98, 121, 165, 0.18);
}

@media (max-width: 920px) {
  .auth-card {
    width: min(100%, 560px);
  }
}

@media (max-width: 640px) {
  body {
    padding: 18px 14px;
  }

  .auth-card {
    padding: 1.4rem;
  }

  .auth-nav {
    align-items: flex-start;
    flex-direction: column;
  }
}