/* 4FAP — вход и регистрация */
:root {
  --bg-body: #050505;
  --bg-card: #121212;
  --bg-input: #1a1a1a;
  --bg-accent: #D2FF00;
  --bg-accent-dim: #b8e000;
  --text-main: #ffffff;
  --text-secondary: #888888;
  --text-inverse: #000000;
  --border-light: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(210, 255, 0, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-pill: 999px;
}

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

body[data-page="auth"] {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
}

body[data-page="auth"] h1,
body[data-page="auth"] h2,
body[data-page="auth"] h3,
body[data-page="auth"] .font-heading {
  font-family: 'Space Grotesk', sans-serif;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.brand-side {
  flex: 1;
  position: relative;
  background: radial-gradient(circle at 20% 30%, rgba(210, 255, 0, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(210, 255, 0, 0.03) 0%, transparent 40%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px;
  border-right: 1px solid var(--border-light);
}

.brand-content { max-width: 500px; }

.logo-large {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 3.5rem;
  color: var(--bg-accent);
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.mascot-container {
  width: 120px;
  height: 120px;
  position: relative;
}

.tagline {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 16px;
}

.description {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.form-side {
  width: 600px;
  min-width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  background-color: #080808;
}

.form-container { width: 100%; max-width: 400px; }

.tab-switcher {
  display: flex;
  background: var(--bg-card);
  padding: 6px;
  border-radius: var(--radius-pill);
  margin-bottom: 40px;
  border: 1px solid var(--border-light);
}

.tab-btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--bg-accent);
  color: var(--text-inverse);
}

.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.form-label a {
  color: var(--bg-accent);
  text-decoration: none;
  font-weight: 400;
  text-transform: none;
}

.form-label a:hover { text-decoration: underline; }

.input-field {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  transition: all 0.2s;
}

.input-field:focus {
  outline: none;
  border-color: var(--bg-accent);
  box-shadow: 0 0 0 4px rgba(210, 255, 0, 0.1);
}

.input-field::placeholder { color: var(--text-secondary); opacity: 0.8; }

.btn-submit {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-accent);
  color: var(--text-inverse);
  border: none;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.2s;
}

.btn-submit:hover {
  background: var(--bg-accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(210, 255, 0, 0.15);
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 30px 0;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-light);
}

.divider:not(:empty)::before { margin-right: 15px; }
.divider:not(:empty)::after { margin-left: 15px; }

.social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.social-btn:hover {
  background: var(--bg-card);
  border-color: var(--text-secondary);
}

.social-btn svg { flex-shrink: 0; }

.footer-links {
  margin-top: 40px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-links a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  margin: 0 8px;
}

.footer-links a:hover { color: var(--bg-accent); }

.footer-links .footer-links-out {
  color: var(--text-main);
  margin: 0 8px;
  font-weight: 500;
}
.footer-links .footer-links-out:hover { color: var(--bg-accent); }

.decor-circle {
  position: absolute;
  width: 400px;
  height: 400px;
  border: 1px solid rgba(210, 255, 0, 0.05);
  border-radius: 50%;
  top: -100px;
  left: -100px;
  pointer-events: none;
}

.auth-dev-block {
  margin-top: 20px;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.auth-dev-block .form-label { margin-bottom: 6px; }

.auth-dev-block select.input-field {
  padding: 8px 12px;
  font-size: 0.9rem;
}

#mascotCanvas { width: 100%; height: 100%; display: block; }

@media (max-width: 1024px) {
  body[data-page="auth"] { 
    flex-direction: column; 
    overflow: auto; 
    height: auto; 
    min-height: 100vh; 
  }
  .brand-side { 
    padding: 40px 24px; 
    border-right: none; 
    border-bottom: 1px solid var(--border-light); 
  }
  .logo-large { font-size: 2.5rem; }
  .mascot-container { width: 80px; height: 80px; }
  .form-side { 
    width: 100%; 
    min-width: 0; 
    padding: 32px 24px; 
  }
}
@media (max-width: 768px) {
  .brand-side {
    padding: 24px 16px;
  }
  .logo-large {
    font-size: 2rem;
  }
  .tagline {
    font-size: 1.2rem;
  }
  .description {
    font-size: 0.9rem;
  }
  .form-side {
    padding: 24px 16px;
  }
  .auth-form {
    gap: var(--space-md);
  }
  .form-group input {
    font-size: 1rem;
    padding: 12px 16px;
  }
  .btn {
    font-size: 0.9rem;
    padding: 12px 24px;
  }
}
@media (max-width: 480px) {
  .brand-side {
    padding: 20px 12px;
  }
  .logo-large {
    font-size: 1.75rem;
  }
  .tagline {
    font-size: 1.1rem;
  }
  .description {
    font-size: 0.85rem;
  }
  .form-side {
    padding: 20px 12px;
  }
  .form-group input {
    font-size: 0.95rem;
    padding: 10px 14px;
  }
  .btn {
    font-size: 0.85rem;
    padding: 10px 20px;
  }
}