/* login.css — standalone stylesheet for the HB-1 login page */
/* Matches the GitHub-dark palette of styles.css */

:root {
  --bg:     #0f1117;
  --s1:     #161b27;
  --s2:     #1e2336;
  --s3:     #252a3d;
  --border: #2d3350;
  --text:   #e2e8f0;
  --muted:  #64748b;
  --accent: #3b82f6;
  --red:    #ef4444;
  --r:      10px;
  color-scheme: dark;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1.5;
  padding: 1.5rem;
}

/* ── Outer wrapper ── */
.login-wrap {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

/* ── Card ── */
.login-card {
  width: 100%;
  background: var(--s1);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Brand row ── */
.login-brand {
  display: flex;
  align-items: center;
  gap: .875rem;
}

.login-icon {
  width: 42px;
  height: 42px;
  background: var(--s3);
  border: 1px solid var(--border);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  flex-shrink: 0;
}

.login-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.login-sub {
  font-size: .72rem;
  color: var(--muted);
}

/* ── Heading ── */
.login-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.01em;
  margin-top: -.25rem;
}

/* ── Error banner ── */
.login-error {
  display: none;
  align-items: center;
  gap: .5rem;
  background: rgba(239, 68, 68, .1);
  border: 1px solid rgba(239, 68, 68, .35);
  border-radius: 7px;
  padding: .65rem .875rem;
  font-size: .8rem;
  color: var(--red);
}

/* Show when JS adds .visible, or when the URL hash is #error */
.login-error.visible {
  display: flex;
}

/* ── Form ── */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Field ── */
.field-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.field-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
}

.field-input {
  width: 100%;
  padding: .6rem .875rem;
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-size: .9rem;
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

.field-input::placeholder {
  color: var(--muted);
  opacity: .6;
}

.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, .15);
}

/* ── Submit button ── */
.login-btn {
  width: 100%;
  padding: .65rem 1rem;
  margin-top: .25rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 7px;
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity .15s, background .15s;
}

.login-btn:hover {
  opacity: .88;
}

.login-btn:active {
  opacity: .75;
}

.login-btn:disabled,
.field-input:disabled {
  cursor: not-allowed;
  opacity: .55;
}

/* ── Footer note ── */
.login-footer {
  font-size: .7rem;
  color: var(--muted);
  opacity: .6;
  text-align: center;
}

/* ── Responsive ── */
@media (max-width: 440px) {
  .login-card {
    padding: 1.5rem 1.25rem;
  }
}