:root {
  --bg: #efefef;
  --ink: #1f2430;
  --muted: #5f6674;
  --line: #d7dbe3;
  --panel: #ffffff;
  --accent: #2a2e37;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Space Grotesk", sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow-x: hidden;
  padding: 14px;
}

.auth-shell {
  width: min(100%, 360px);
}

.auth-card {
  border: 1px solid #cfd5df;
  border-radius: 14px;
  background: var(--panel);
  overflow: hidden;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.04);
}

.auth-head {
  padding: 1rem 1.1rem 0.55rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  width: fit-content;
  margin: 0 auto;
  color: #404040;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-logo {
  width: 1.25rem;
  height: 1.25rem;
  object-fit: contain;
  image-rendering: auto;
  mix-blend-mode: multiply;
  filter: contrast(1.02);
  transform: translateZ(0);
}

h1 {
  margin-top: 0.55rem;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  text-align: center;
  line-height: 1;
}

.tabs {
  margin-top: 0.45rem;
  display: flex;
  gap: 0.9rem;
  justify-content: center;
}

.tab {
  border: 0;
  background: transparent;
  font-size: 0.9rem;
  color: #687181;
  padding-bottom: 0.35rem;
  border-bottom: 3px solid transparent;
  cursor: pointer;
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.auth-body {
  border-top: 1px solid var(--line);
  padding: 0.8rem 1rem 1rem;
}

.form {
  display: grid;
  gap: 0.34rem;
}

label {
  font-size: 0.73rem;
  color: #4a5262;
}

input {
  border: 1px solid #cfd6e0;
  border-radius: 999px;
  padding: 0.48rem 0.74rem;
  font-size: 0.84rem;
  color: #1f2937;
  background: #fff;
}

input:focus {
  outline: none;
  border-color: #8894a8;
  box-shadow: 0 0 0 3px rgba(136, 148, 168, 0.15);
}

button {
  width: 100%;
  margin-top: 0.4rem;
  border: 1px solid #bcc4d1;
  border-radius: 999px;
  background: #f3f3f3;
  color: #222a38;
  padding: 0.5rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.status {
  min-height: 1.2rem;
  margin-top: 0.45rem;
  color: #3f4a5c;
  font-size: 0.76rem;
}

.status.error {
  color: #9a2525;
}

.helper-link-row {
  text-align: right;
  margin-top: 0.08rem;
}

.helper-link-row a {
  color: #394453;
  text-decoration: none;
  border-bottom: 1px solid #394453;
  font-size: 0.72rem;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: grid;
}

.success {
  margin-top: 0.5rem;
  border: 1px solid #d5dbe4;
  border-radius: 8px;
  background: #f6f7f8;
  padding: 0.55rem;
}

.success h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.86rem;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.success p {
  color: #3a4658;
  font-size: 0.74rem;
}

.alt {
  margin-top: 0.2rem;
  color: #475569;
  text-align: center;
  font-size: 0.8rem;
}

.alt a {
  color: #1f2532;
  text-decoration: none;
  border-bottom: 1px solid #1f2532;
}

.auth-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  font-size: 0.8rem;
}

.auth-footer a {
  color: #2a3342;
  text-decoration: none;
  border-bottom: 1px solid #2a3342;
}

.auth-note {
  margin-top: 0.45rem;
  font-size: 0.76rem;
  color: #4d5869;
  line-height: 1.45;
}

.auth-note a {
  color: #2a3342;
  text-decoration: none;
  border-bottom: 1px solid #2a3342;
}

.inline-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-top: 0.4rem;
}

.secondary-btn {
  border: 1px solid #cfd6e0;
  background: #ffffff;
  color: #2e3949;
}

@media (max-width: 420px) {
  body {
    place-items: stretch;
    align-items: center;
  }

  .auth-shell {
    width: 100%;
  }

  .auth-head {
    padding: 0.9rem 0.9rem 0.5rem;
  }

  .auth-body {
    padding: 0.75rem 0.85rem 0.95rem;
  }

  h1 {
    font-size: 1.42rem;
  }

  .tabs,
  .inline-actions {
    gap: 0.35rem;
  }
}