/* ===== AUTH PAGE STYLES ===== */
:root {
  --primary: #0F766E;
  --primary-dark: #0D5D56;
  --primary-light: #14B8A6;
  --secondary: #F59E0B;
  --success: #10B981;
  --danger: #EF4444;
  --dark: #0F172A;
  --gray-700: #475569;
  --gray-600: #64748B;
  --gray-500: #94A3B8;
  --gray-400: #CBD5E1;
  --gray-300: #E2E8F0;
  --gray-200: #F1F5F9;
  --gray-100: #F8FAFC;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--dark);
  background: var(--gray-100);
  min-height: 100vh;
}

.auth-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

.auth-left {
  background: linear-gradient(135deg, #0F172A 0%, #134E4A 40%, #0F766E 70%, #0D9488 100%);
  color: white;
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: white;
  margin-bottom: 12px;
}
.brand-icon { font-size: 2rem; }
.brand-text { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.02em; }
.brand-accent { color: var(--primary-light); }
.brand-tagline { font-size: 1.1rem; color: rgba(255,255,255,0.7); margin-bottom: 48px; }

.auth-features { display: flex; flex-direction: column; gap: 24px; }
.auth-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.1);
}
.auth-feature .feature-icon { font-size: 1.6rem; flex-shrink: 0; }
.auth-feature strong { font-size: 0.92rem; display: block; margin-bottom: 4px; }
.auth-feature p { font-size: 0.82rem; color: rgba(255,255,255,0.6); line-height: 1.5; }

.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--white);
  border-radius: 20px;
  padding: 36px;
  box-shadow: var(--shadow-lg);
}

.auth-tabs {
  display: flex;
  gap: 4px;
  background: var(--gray-200);
  border-radius: 100px;
  padding: 4px;
  margin-bottom: 28px;
}
.auth-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border-radius: 100px;
  color: var(--gray-600);
  transition: var(--transition);
}
.auth-tab.active {
  background: var(--white);
  color: var(--dark);
  box-shadow: var(--shadow);
}

.auth-form .form-group {
  margin-bottom: 18px;
}
.auth-form label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  margin-bottom: 6px;
  color: var(--gray-700);
}
.auth-form input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
  color: var(--dark);
}
.auth-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.1);
}
.auth-form input::placeholder { color: var(--gray-500); }

.slug-input-group {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}
.slug-input-group:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.1);
}
.slug-prefix {
  padding: 12px 4px 12px 14px;
  background: var(--gray-200);
  color: var(--gray-600);
  font-weight: 600;
  font-size: 0.9rem;
  border-right: 1px solid var(--gray-300);
}
.slug-input-group input {
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}
.slug-status {
  font-size: 0.78rem;
  margin-top: 4px;
  min-height: 18px;
}
.slug-available { color: var(--success); }
.slug-taken { color: var(--danger); }
.slug-checking { color: var(--gray-500); }

.auth-error {
  background: rgba(239,68,68,0.08);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(15,118,110,0.35); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.btn-lg { padding: 14px 34px; font-size: 0.95rem; }
.btn-block { width: 100%; }

.auth-footer {
  text-align: center;
  margin-top: 20px;
}
.auth-footer a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 0.82rem;
  transition: var(--transition);
}
.auth-footer a:hover { color: var(--primary); }

@media (max-width: 900px) {
  .auth-container { grid-template-columns: 1fr; }
  .auth-left { display: none; }
  .auth-right { padding: 20px; }
  .auth-card { padding: 28px 24px; }
}