/**
 * VoyGent V3 - Main Styles
 * Mobile-first responsive design
 */

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --error-color: #ef4444;
  --background: #f8fafc;
  --surface: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* Header */
header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-md) 0;
  box-shadow: var(--shadow);
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

header .tagline {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.back-link {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
}

.back-link:hover {
  text-decoration: underline;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background-color: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-top: var(--spacing-sm);
}

.progress-fill {
  height: 100%;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.progress-message {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

/* Main Content */
main {
  padding: var(--spacing-lg) 0;
  min-height: calc(100vh - 200px);
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .hero h2 {
    font-size: 2.5rem;
  }
}

/* Templates Grid */
.templates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 640px) {
  .templates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .templates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.template-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
}

.template-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--primary-color);
}

.template-card .icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.template-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.template-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Loading State */
.loading {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px; /* Touch target */
  min-width: 44px;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: #475569;
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Footer */
footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background-color: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--spacing-md);
}

@media (min-width: 768px) {
  .modal-content {
    padding: var(--spacing-lg);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background-color: var(--border);
  color: var(--text-primary);
}

.modal-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding-right: var(--spacing-lg);
}

.modal-icon {
  font-size: 2.5rem;
}

.modal-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Form Styles */
.form-section {
  margin-bottom: var(--spacing-md);
}

.form-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.form-section label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.form-section .help-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
}

@media (min-width: 480px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-field {
  display: flex;
  flex-direction: column;
}

.form-field label {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.form-field .required {
  color: var(--error-color);
}

/* Form Inputs */
input[type="text"],
input[type="number"],
input[type="date"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  background-color: var(--surface);
  color: var(--text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* Details/Summary for optional fields */
details.form-section {
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
}

details.form-section summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--spacing-xs);
  margin: calc(var(--spacing-xs) * -1);
  border-radius: var(--border-radius);
}

details.form-section summary:hover {
  background-color: var(--background);
}

details.form-section[open] summary {
  margin-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-sm);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Form Actions */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border);
}

.btn-text,
.btn-loading {
  display: inline-block;
}

.btn-loading.hidden,
.btn-text.hidden {
  display: none;
}

/* Utility: Hidden */
.hidden {
  display: none !important;
}