/* ChatGPT-like Theme for Tourism Chatbot */

:root {
  /* Black, White, Grey Steel color scheme */
  --primary-bg: #ffffff;           /* Main background */
  --secondary-bg: #f5f5f5;         /* Secondary background (sidebar) */
  --primary-color: #404040;        /* Grey steel primary */
  --primary-hover: #2a2a2a;        /* Darker grey for hover states */
  --secondary-color: #202123;      /* Dark gray for text */
  --accent-color: #e8e8e8;         /* Light grey accent */
  --border-color: #d0d0d0;         /* Grey border color */
  --text-primary: #202123;         /* Primary text color */
  --text-secondary: #6e6e80;       /* Secondary text color */
  --text-light: #ffffff;           /* Light text for dark backgrounds */
  --success-color: #555555;        /* Grey steel success */
  --error-color: #ef4146;          /* Keep error red for visibility */
  --warning-color: #888888;        /* Grey warning */
  --info-color: #666666;           /* Grey info */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.03);
}

/* General Element Styling */
body {
  background-color: var(--primary-bg);
  color: var(--text-primary);
  font-family: 'Söhne', 'SF Pro Text', -apple-system, system-ui, sans-serif;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
}

p {
  color: var(--text-primary);
  margin-bottom: 1rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: none;
}

/* Navigation */
.navbar {
  padding: 0.5rem 1rem;
  box-shadow: var(--shadow-sm);
}

.navbar-dark {
  background-color: #000000 !important;
  border-bottom: 1px solid #333333;
}

.navbar-dark .navbar-brand, 
.navbar-dark .navbar-brand:hover {
  color: #ffffff;
  font-weight: 600;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  transition: color 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

.navbar-dark .nav-item .btn-outline-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: #ffffff;
}

.navbar-dark .nav-item .btn-secondary {
  background-color: #ffffff;
  color: #000000;
  border: none;
}

/* Buttons */
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-light);
  font-weight: 500;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-outline-primary {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transition: all 0.2s ease;
}

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.btn-secondary {
  background-color: var(--secondary-bg);
  border-color: var(--border-color);
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
}

.btn-success {
  background-color: var(--success-color);
  border-color: var(--success-color);
  color: var(--text-light);
}

.btn-outline-light {
  border-color: var(--text-light);
  color: var(--text-light);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--text-light);
}

.btn {
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s ease;
}

.btn:active {
  transform: translateY(1px);
}

/* Forms */
.form-label {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.75rem;
  color: var(--text-primary);
  background-color: var(--primary-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.2);
  outline: none;
}

.form-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Alerts */
.alert {
  border-radius: 6px;
  padding: 1rem;
  border-width: 1px;
  margin-bottom: 1.5rem;
}

.alert-primary {
  background-color: rgba(16, 163, 127, 0.1);
  border-color: rgba(16, 163, 127, 0.2);
  color: var(--primary-color);
}

.alert-success {
  background-color: rgba(16, 163, 127, 0.1);
  border-color: rgba(16, 163, 127, 0.25);
  color: var(--success-color);
}

.alert-danger {
  background-color: rgba(239, 65, 70, 0.1);
  border-color: rgba(239, 65, 70, 0.25);
  color: var(--error-color);
}

.alert-warning {
  background-color: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.25);
  color: #92400e;
}

/* Cards */
.card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-header {
  background-color: var(--primary-color);
  color: var(--text-light);
  font-weight: 600;
  border-top-left-radius: 8px !important;
  border-top-right-radius: 8px !important;
  border-bottom: none;
}

.card-body {
  padding: 1.5rem;
}

/* Feature Cards */
.feature-card {
  background-color: var(--primary-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  height: 100%;
  transition: all 0.3s ease;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.feature-icon {
  color: var(--primary-color);
  width: 38px;
  height: 38px;
  margin-bottom: 1.5rem;
  stroke-width: 1.5;
}

/* Sections */
section {
  padding: 4rem 0;
}

section:nth-child(even) {
  background-color: var(--secondary-bg);
}

section:nth-child(odd) {
  background-color: var(--primary-bg);
}

.bg-light {
  background-color: var(--secondary-bg) !important;
}

/* Footer */
footer {
  background-color: #000000 !important;
  color: var(--text-light);
  padding: 4rem 0 3rem;
  border-top: 1px solid #333333;
}

footer h5 {
  color: var(--text-light);
  font-weight: 600;
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
  display: inline-block;
}

footer a:hover {
  color: var(--text-light);
  text-decoration: none;
}

footer .list-unstyled li {
  margin-bottom: 0.75rem;
}

footer p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  margin-top: 3rem;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Media queries for responsive design */
@media (max-width: 767.98px) {
  .navbar-dark .navbar-nav .nav-link {
    padding: 0.5rem 0;
  }
  
  section {
    padding: 3rem 0;
  }
}