/* Login page — same design language as the main app (himslite-inspired). */
:root {
  --primary: #0D7377;
  --primary-hover: #0A5D60;
  --primary-pressed: #084E51;
  --primary-tint: rgba(13, 115, 119, 0.08);
  --primary-tint-strong: rgba(13, 115, 119, 0.14);
  --bg: #F3F5F8;
  --surface: #ffffff;
  --surface-sunk: #EEF2F6;
  --border: #E3E8EF;
  --text: #0F172A;
  --text-muted: #475569;
  --text-faint: #94A3B8;
  --danger: #DC2626;
  --danger-tint: rgba(220, 38, 38, 0.08);
  --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
  --radius-lg: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  background:
    radial-gradient(ellipse at top, rgba(13,115,119,0.12), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(20,184,166,0.10), transparent 50%),
    var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  -webkit-font-smoothing: antialiased;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px 30px 24px;
  animation: cardIn 240ms ease-out;
}
@keyframes cardIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, #14B8A6 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(13, 115, 119, 0.25);
}
.brand-text h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.1px;
}
.brand-text p {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--text-faint);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field-label {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.field input {
  font: inherit;
  font-size: 14px;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  width: 100%;
}
.field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-tint);
}

.btn-primary {
  margin-top: 4px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2px;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  padding: 11px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 120ms;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn-primary:active:not(:disabled) { background: var(--primary-pressed); border-color: var(--primary-pressed); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.login-error {
  background: var(--danger-tint);
  color: var(--danger);
  border: 1px solid rgba(220, 38, 38, 0.25);
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 12.5px;
}
.hidden { display: none; }

.login-footer {
  margin-top: 22px;
  text-align: center;
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

/* Sign in / Sign up tab toggle */
.auth-tabs {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 16px;
}
.auth-tab {
  flex: 1;
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--muted, #8b90a0);
  padding: 8px 12px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 120ms, color 120ms;
}
.auth-tab:hover { color: var(--text, #eaedf3); }
.auth-tab.active {
  background: rgba(255,255,255,0.08);
  color: var(--text, #eaedf3);
}
.auth-tab:focus-visible { outline: 2px solid var(--primary, #00d4a1); outline-offset: 2px; }

/* hidden helper if not already present in login.css */
.hidden { display: none !important; }