:root {
  --primary-color: #D98452;
  --secondary-color: #D98452;
  --accent-color: #BA6A3C;
  --background-color: #F5E8D9;
  --surface-color: #ffffff;
  --text-color: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #06b6d4;

  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
}

[data-theme="dark"] {
  --primary-color: #3b82f6;
  --secondary-color: #60a5fa;
  --accent-color: #93c5fd;
  --background-color: #0f172a;
  --surface-color: #1e293b;
  --text-color: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #06b6d4;
}

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

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, var(--background-color) 0%, var(--gray-100) 50%, var(--background-color) 100%);
  min-height: 100vh;
  color: var(--text-color);
  position: relative;
  overflow-x: hidden;
  padding: 20px 0;
  transition: background 0.3s ease, color 0.3s ease;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(30, 64, 175, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(96, 165, 250, 0.05) 0%, transparent 50%);
  z-index: -1;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-20px) rotate(1deg);
  }
  66% {
    transform: translateY(10px) rotate(-1deg);
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--surface-color);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  position: relative;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="dark"] .container {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  z-index: 1;
}

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--surface-color);
  border: 2px solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-color);
  transition: all 0.3s ease;
  z-index: 1001;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .theme-toggle {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .theme-toggle:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.header {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
}

.logo {
  width: 80px;
  height: auto;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.header h1 {
  font-family: "Montserrat", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
  font-size: 1.2rem;
  opacity: 0.9;
}

.form-container {
  padding: 50px;
}

.toggle-buttons {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 6px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .toggle-buttons {
  background: var(--gray-800);
}

.toggle-btn {
  flex: 1;
  padding: 15px 30px;
  border: none;
  background: transparent;
  color: var(--text-color);
  font-weight: 500;
  border-radius: 40px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.toggle-btn.active {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  box-shadow: 0 4px 12px rgba(255, 163, 88, 0.3);
  transform: translateY(-2px);
}

.toggle-btn:hover:not(.active) {
  background: var(--surface-color);
  transform: translateY(-1px);
}

.message {
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 30px;
  font-weight: 500;
  display: flex;
  align-items: center;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.message.success {
  background: rgba(40, 167, 69, 0.1);
  color: var(--success-color);
  border: 1px solid rgba(40, 167, 69, 0.2);
}

.message.error {
  background: rgba(220, 53, 69, 0.1);
  color: var(--error-color);
  border: 1px solid rgba(220, 53, 69, 0.2);
}

.message i {
  margin-right: 12px;
  font-size: 1.2rem;
}

.form-section {
  display: none;
}

.form-section.active {
  display: block;
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 25px;
}

.form-group {
  flex: 1;
  position: relative;
}

.form-floating {
  position: relative;
}

.form-floating input,
.form-floating select {
  width: 100%;
  padding: 18px 20px 18px 50px;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: var(--gray-50);
  transition: all 0.3s ease;
  color: var(--text-color);
}

[data-theme="dark"] .form-floating input,
[data-theme="dark"] .form-floating select {
  background: var(--gray-800);
}

.form-floating input:focus,
.form-floating select:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
  background: var(--surface-color);
  transform: translateY(-2px);
}

.form-floating label {
  position: absolute;
  top: 18px;
  left: 50px;
  font-size: 1rem;
  color: var(--text-color);
  opacity: 0.7;
  background: transparent;
  transition: all 0.3s ease;
  pointer-events: none;
}

.form-floating input:focus + label,
.form-floating input:not(:placeholder-shown) + label,
.form-floating select:focus + label,
.form-floating select:not([value=""]) + label {
  top: -12px;
  left: 16px;
  font-size: 0.85rem;
  color: var(--secondary-color);
  background: var(--white);
  padding: 0 8px;
  font-weight: 500;
}

.input-icon {
  position: absolute;
  left: 18px;
  top: 18px;
  color: var(--text-color);
  opacity: 0.6;
  z-index: 1;
  transition: all 0.3s ease;
}

.form-floating input:focus ~ .input-icon,
.form-floating select:focus ~ .input-icon {
  color: var(--secondary-color);
  opacity: 1;
}

.password-toggle {
  position: absolute;
  right: 18px;
  top: 18px;
  cursor: pointer;
  color: var(--text-color);
  opacity: 0.6;
  transition: all 0.3s ease;
  z-index: 2;
}

.password-toggle:hover {
  opacity: 1;
  color: var(--secondary-color);
}

.submit-btn {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  color: var(--white);
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}

.submit-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.submit-btn:hover::before {
  left: 100%;
}

.submit-btn:active {
  transform: translateY(0);
}

.submit-btn.loading {
  pointer-events: none;
}

.submit-btn.loading::after {
  content: "";
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 10px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.form-links {
  text-align: center;
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
}

.form-links p {
  margin-bottom: 10px;
  color: var(--text-color);
  opacity: 0.8;
}

.form-links a {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
}

.form-links a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.mascote {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 80px;
  height: 80px;
  z-index: 1000;
  animation: bounce 2s infinite;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.mascote:hover {
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .form-container {
    padding: 30px 20px;
  }

  .form-row {
    flex-direction: column;
    gap: 15px;
  }

  .toggle-btn {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .header h1 {
    font-size: 2rem;
  }

  .mascote {
    width: 60px;
    height: 60px;
    bottom: 15px;
    right: 15px;
  }
}

@media (max-width: 480px) {
  .form-floating input,
  .form-floating select {
    padding: 16px 18px 16px 45px;
  }

  .input-icon {
    left: 16px;
    top: 16px;
  }

  .password-toggle {
    right: 16px;
    top: 16px;
  }
}

.form-floating input.valid {
  border-color: var(--success-color);
  background: rgba(40, 167, 69, 0.05);
}

.form-floating input.invalid {
  border-color: var(--error-color);
  background: rgba(220, 53, 69, 0.05);
}

.password-strength {
  margin-top: 8px;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.password-strength-bar {
  height: 100%;
  width: 0%;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.password-strength-bar.weak {
  width: 25%;
  background: var(--error-color);
}

.password-strength-bar.fair {
  width: 50%;
  background: var(--warning-color);
}

.password-strength-bar.good {
  width: 75%;
  background: var(--info-color);
}

.password-strength-bar.strong {
  width: 100%;
  background: var(--success-color);
}