/* Sign-in page — extends BIN marketing tokens from styles.css */

.sign-in-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.sign-in-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vw, 4rem) var(--pad-x);
}

.sign-in-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 2.25rem);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.sign-in-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.sign-in-lede {
  margin: 0 0 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.oauth-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.oauth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.oauth-btn:hover {
  background: var(--bg-hover);
  border-color: rgba(255, 255, 255, 0.14);
}

.oauth-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.oauth-btn:active {
  transform: scale(0.99);
}

.oauth-btn svg {
  flex-shrink: 0;
}

.oauth-google {
  background: #fff;
  color: #1f1f1f;
  border-color: rgba(0, 0, 0, 0.08);
}

.oauth-google:hover {
  background: #f8f9fa;
  border-color: rgba(0, 0, 0, 0.12);
}

.oauth-github {
  background: #24292f;
  color: #f0f6fc;
  border-color: rgba(255, 255, 255, 0.12);
}

.oauth-github:hover {
  background: #2d333b;
  border-color: rgba(255, 255, 255, 0.18);
}

.sign-in-footnote {
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.5;
}

.sign-in-footnote a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.sign-in-footnote a:hover {
  color: var(--text);
}

.sign-in-flashes {
  margin: 0 0 1.25rem;
}

.sign-in-flash {
  margin: 0 0 0.5rem;
  padding: 0.65rem 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
}

.sign-in-flash--error {
  color: #fecaca;
  background: rgba(248, 113, 113, 0.12);
  border-color: rgba(248, 113, 113, 0.35);
}

.sign-in-flash--message {
  color: var(--text-secondary);
  background: var(--bg-raised);
}

.sign-in-config-hint {
  margin: 0 0 1.25rem;
  padding: 1rem 1rem 1.1rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: #fef3c7;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: var(--radius);
}

.sign-in-config-hint strong {
  color: #fde68a;
}

.sign-in-config-hint p {
  margin: 0.65rem 0 0;
}

.sign-in-config-hint p:first-of-type {
  margin-top: 0.5rem;
}

.sign-in-config-list {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  color: rgba(254, 243, 199, 0.92);
}

.sign-in-config-list code {
  font-size: 0.8em;
  color: #fff;
}

.sign-in-config-steps {
  color: rgba(254, 243, 199, 0.88);
}

.sign-in-redirect-hint {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--text-secondary);
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}

.sign-in-redirect-hint strong {
  color: var(--text);
  font-size: 0.8125rem;
}

.sign-in-redirect-hint code {
  font-size: 0.7rem;
  color: var(--accent);
}

.sign-in-redirect-uri-wrap {
  margin: 0.4rem 0 0;
  padding: 0.5rem 0.6rem;
  word-break: break-all;
  background: var(--bg-void);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.sign-in-redirect-uri-wrap code {
  color: var(--text);
  font-size: 0.7rem;
}