/* =========================================================================
   SHUNYA — Auth Screens Shared Styles
   Used by: Login, Verify, Loading
   Relies on design-system.css for --shunya-* tokens
   ========================================================================= */

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

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--shunya-font-body);
  background: var(--shunya-bg);
  color: var(--shunya-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Identity Strip ─── */
.auth-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 44px;
  border-bottom: 1px solid var(--shunya-border);
  background: var(--shunya-nav-bg);
  flex-shrink: 0;
}

.auth-strip-left { display: flex; align-items: center; gap: 10px; }

.auth-strip-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--shunya-gold);
  flex-shrink: 0;
}

.auth-strip-logo {
  font-size: 13px;
  font-weight: 500;
  color: var(--shunya-text);
  letter-spacing: 0.03em;
}

.auth-strip-nav a {
  font-size: 12px;
  color: var(--shunya-text-tertiary);
  text-decoration: none;
  margin-left: 24px;
  transition: color var(--shunya-duration-fast) var(--shunya-ease);
}

.auth-strip-nav a:hover { color: var(--shunya-text); }

/* ─── Main Content ─── */
.auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
}

.auth-card h1 {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.auth-card .sub {
  font-size: 13px;
  color: var(--shunya-text-tertiary);
  margin-bottom: 32px;
  line-height: 1.5;
}

/* ─── Labels ─── */
.auth-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--shunya-text-secondary);
  margin-bottom: 6px;
}

/* ─── Inputs ─── */
.auth-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--shunya-surface);
  border: 1px solid var(--shunya-border);
  border-radius: var(--shunya-radius-sm);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: var(--shunya-text);
  outline: none;
  transition: border-color var(--shunya-duration-fast) var(--shunya-ease);
}

.auth-input:focus { border-color: rgba(26,28,29,0.2); }

.auth-input::placeholder { color: var(--shunya-text-faint); }

.auth-field { margin-bottom: 20px; }

/* ─── Buttons ─── */
.auth-btn {
  width: 100%;
  padding: 10px;
  background: var(--shunya-text);
  color: var(--shunya-surface);
  border: none;
  border-radius: var(--shunya-radius-sm);
  font-size: 13px;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: opacity var(--shunya-duration-fast) var(--shunya-ease);
}

.auth-btn:hover { opacity: 0.85; }

.auth-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ─── Error ─── */
.auth-error {
  font-size: 12px;
  color: #ff6b6b;
  display: none;
  margin-bottom: 16px;
}

/* ─── Links ─── */
.auth-link {
  text-align: center;
  font-size: 12px;
  color: var(--shunya-text-tertiary);
  margin-top: 24px;
}

.auth-link a {
  color: var(--shunya-text);
  text-decoration: none;
  border-bottom: 1px solid var(--shunya-border);
  padding-bottom: 1px;
  transition: border-color var(--shunya-duration-fast) var(--shunya-ease);
}

.auth-link a:hover { border-color: var(--shunya-text); }

/* ─── Divider ─── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  font-size: 11px;
  color: var(--shunya-text-faint);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--shunya-border);
}

/* ─── Focus ─── */
:focus-visible {
  outline: 2px solid var(--shunya-gold);
  outline-offset: 2px;
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .auth-strip { padding: 0 16px; }
  .auth-main { padding: 32px 16px; }
}