/* ============================================
   AI Ассистент Авито — Premium Login Page
   ============================================ */

.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 20px;
}

/* Stunning Animated Background */
.login-bg {
  position: fixed; inset: 0; z-index: 0;
  background-color: #05050A;
  background-image: 
    radial-gradient(ellipse at 10% 90%, rgba(123, 44, 191, 0.15), transparent 40%),
    radial-gradient(ellipse at 90% 10%, rgba(33, 158, 188, 0.15), transparent 40%);
  animation: pulseBg 10s alternate infinite ease-in-out;
}

@keyframes pulseBg {
  0% { transform: scale(1); }
  100% { transform: scale(1.05); }
}

.login-grid {
  position: fixed; inset: 0; z-index: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

.login-card {
  position: relative; z-index: 1; width: 100%; max-width: 440px;
  background: rgba(12, 12, 18, 0.6);
  backdrop-filter: blur(40px); -webkit-backdrop-filter: blur(40px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 32px;
  padding: 48px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255,255,255,0.1);
  animation: cardIn 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(40px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Logo */
.login-logo { text-align: center; margin-bottom: 40px; }
.login-logo-icon {
  width: 72px; height: 72px; margin: 0 auto 24px;
  background: var(--accent-gradient);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; box-shadow: var(--accent-glow);
}
.login-logo h1 {
  font-size: 28px; font-weight: 700;
  background: linear-gradient(to right, #fff, #A2D2FF);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.login-logo p { font-size: 15px; color: var(--text-secondary); }

/* Tabs */
.login-tabs {
  display: flex; background: rgba(0,0,0,0.3); border-radius: 12px;
  padding: 4px; margin-bottom: 32px; border: 1px solid rgba(255,255,255,0.05);
}
.login-tab {
  flex: 1; padding: 12px; text-align: center; font-family: 'Montserrat'; font-weight: 600;
  color: var(--text-muted); cursor: pointer; border-radius: 8px; transition: all 0.3s;
  background: transparent; border: none;
}
.login-tab.active { background: rgba(123, 44, 191, 0.2); color: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.2); }

/* Forms */
.login-form { display: none; animation: fadeIn 0.4s; }
.login-form.active { display: block; }

.login-input-group { position: relative; margin-bottom: 24px; }
.login-input-group .input-icon {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 18px; z-index: 1;
}
.login-input-group input { padding-left: 48px; height: 56px; font-size: 15px; border-radius: 16px; }

.login-submit {
  width: 100%; height: 56px; border-radius: 16px; font-size: 16px;
  background: var(--accent-gradient); color: #fff; font-weight: 700;
  border: none; cursor: pointer; transition: all 0.3s;
  box-shadow: 0 10px 25px rgba(123, 44, 191, 0.4); margin-top: 8px;
}
.login-submit:hover { transform: translateY(-2px); box-shadow: 0 15px 35px rgba(123, 44, 191, 0.6); filter: brightness(1.1); }

.login-error {
  display: none; padding: 16px; background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2); border-radius: 12px;
  color: #FCA5A5; font-size: 14px; margin-bottom: 24px;
}
.login-error.visible { display: flex; align-items: center; gap: 12px; }

.login-footer { text-align: center; margin-top: 32px; color: var(--text-muted); font-size: 13px; }