/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-focus: #818cf8;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-muted: #f3f4f6;
  --border-color: #e5e7eb;
  --border-focus: #818cf8;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius-sm: 0.125rem;
  --radius: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-muted));
  min-height: 100vh;
  line-height: 1.5;
}

/* Container and layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  max-width: 28rem;
  width: 100%;
  margin: 0 auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 1rem;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo i {
  color: var(--primary);
  font-size: 1.5rem;
}

.logo span {
  font-size: 1.25rem;
  font-weight: 700;
}

nav.desktop-nav {
  display: none;
}

nav.desktop-nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav.desktop-nav a:hover {
  color: var(--text-primary);
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
}

.mobile-menu-btn:hover {
  color: var(--text-primary);
}

.mobile-menu {
  display: none;
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.3s ease-out;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
}

.mobile-menu nav a {
  padding: 0.5rem 0;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.mobile-menu nav a:not(:last-child) {
  border-bottom: 1px solid var(--bg-muted);
}

.mobile-menu nav a:hover {
  color: var(--text-primary);
}

/* Page header */
.page-header {
  text-align: center;
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary);
}

/* Card */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  animation: fadeIn 0.5s ease-out;
}

/* Form elements */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-group .label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

.form-group .label-row a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

.form-group .label-row a:hover {
  color: var(--primary-hover);
}

.input-wrapper {
  position: relative;
}

.input-wrapper .icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.input-wrapper .toggle-password {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s;
}

.input-wrapper .toggle-password:hover {
  color: var(--text-secondary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"] {
  width: 100%;
  padding: 0.75rem 0.75rem 0.75rem 2.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
input[type="tel"]::placeholder {
  color: var(--text-muted);
}

.password-strength {
  height: 0.25rem;
  width: 100%;
  background-color: var(--bg-muted);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.password-strength-bar {
  height: 100%;
  width: 0;
  transition: width 0.3s, background-color 0.3s;
}

.password-strength-bar.weak {
  width: 33.333333%;
  background-color: #ef4444;
}

.password-strength-bar.medium {
  width: 66.666667%;
  background-color: #f59e0b;
}

.password-strength-bar.strong {
  width: 100%;
  background-color: #10b981;
}

.password-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.checkbox-group {
  display: flex;
  align-items: center;
  margin-bottom: 1.25rem;
}

.checkbox-group input[type="checkbox"] {
  height: 1rem;
  width: 1rem;
  border-radius: 0.25rem;
  border: 1px solid var(--border-color);
  accent-color: var(--primary);
}

.checkbox-group label {
  margin-left: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.checkbox-group label a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

.checkbox-group label a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

button[type="submit"] {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, box-shadow 0.2s;
}

button[type="submit"]:hover {
  background-color: var(--primary-hover);
}

button[type="submit"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.4);
}

.form-footer {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.875rem;
}

.form-footer span {
  color: var(--text-secondary);
}

.form-footer a {
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
  margin-left: 0.25rem;
  transition: color 0.2s;
}

.form-footer a:hover {
  color: var(--primary-hover);
}

/* Footer */
footer {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 1rem 0;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive styles */
@media (min-width: 640px) {
  .card {
    padding: 1.5rem;
  }
  
  .page-header h1 {
    font-size: 2rem;
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
}

@media (min-width: 768px) {
  nav.desktop-nav {
    display: block;
  }
  
  .mobile-menu-btn {
    display: none;
  }
  
  .mobile-menu {
    display: none !important;
  }
}