/* ============================================
   I've Seen GUS - Main Stylesheet
   Color Scheme based on Hi-Vis GUS Vest
   ============================================ */

/* CSS Variables */
:root {
  /* Primary Colors - Hi-Vis Yellow from vest */
  --primary-yellow: #CCFF00;
  --primary-yellow-dark: #B8E600;
  --primary-yellow-light: #E6FF66;
  
  /* Secondary Colors */
  --black: #1A1A1A;
  --dark-gray: #2D2D2D;
  --medium-gray: #4A4A4A;
  --light-gray: #E5E5E5;
  --white: #FFFFFF;
  
  /* Overlay Colors */
  --overlay-dark: rgba(0, 0, 0, 0.75);
  --overlay-medium: rgba(0, 0, 0, 0.5);
  --overlay-light: rgba(0, 0, 0, 0.3);
  
  /* Status Colors */
  --success: #28A745;
  --error: #DC3545;
  --warning: #FFC107;
  --info: #17A2B8;
  
  /* Typography */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Impact', 'Arial Black', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(204, 255, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--white);
  background-color: var(--black);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-yellow);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-yellow-light);
  text-decoration: underline;
}

/* ============================================
   Landing Page Styles
   ============================================ */

.landing-page {
  min-height: 100vh;
  background-image: url('../images/background.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  position: relative;
  display: flex;
  flex-direction: column;
}

.landing-page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--overlay-dark);
  z-index: 1;
}

.landing-content {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl);
  text-align: center;
}

.landing-title {
  font-size: 4rem;
  color: var(--primary-yellow);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
}

.landing-subtitle {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: var(--spacing-xxl);
  max-width: 600px;
}

/* Main Action Buttons */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 400px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary-yellow);
  color: var(--black);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--primary-yellow-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
  color: var(--black);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--black);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background-color: var(--light-gray);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: var(--black);
}

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

.btn-outline:hover {
  background-color: var(--white);
  color: var(--black);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: 1.5rem;
}

.btn-icon {
  margin-right: var(--spacing-sm);
  font-size: 1.5em;
}

/* Footer with Sponsors */
.landing-footer {
  position: relative;
  z-index: 2;
  background-color: var(--overlay-dark);
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xxl);
  flex-wrap: wrap;
}

.footer-sponsor {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-sponsor img {
  max-height: 60px;
  max-width: 150px;
  object-fit: contain;
}

.footer-sponsor-label {
  font-size: 0.75rem;
  color: var(--light-gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   Form Page Styles
   ============================================ */

.form-page {
  min-height: 100vh;
  background-color: var(--dark-gray);
  padding: var(--spacing-xl);
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--black);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-lg);
}

.form-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.form-header h1 {
  color: var(--primary-yellow);
  margin-bottom: var(--spacing-sm);
}

.form-header p {
  color: var(--light-gray);
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--light-gray);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

.back-link:hover {
  color: var(--primary-yellow);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--white);
}

.form-label .required {
  color: var(--error);
  margin-left: var(--spacing-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  font-family: var(--font-primary);
  background-color: var(--dark-gray);
  border: 2px solid var(--medium-gray);
  border-radius: var(--radius-md);
  color: var(--white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-yellow);
  box-shadow: 0 0 0 3px rgba(204, 255, 0, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--medium-gray);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23CCFF00' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-xxl);
}

.form-select option {
  background-color: var(--dark-gray);
  color: var(--white);
}

/* Checkbox & Radio */
.form-checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.form-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--primary-yellow);
  cursor: pointer;
}

.form-checkbox-label {
  font-size: 0.9rem;
  color: var(--light-gray);
  cursor: pointer;
}

.form-checkbox-label a {
  color: var(--primary-yellow);
}

/* File Upload */
.file-upload {
  position: relative;
  border: 2px dashed var(--medium-gray);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-upload:hover {
  border-color: var(--primary-yellow);
  background-color: rgba(204, 255, 0, 0.05);
}

.file-upload input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-upload-icon {
  font-size: 2rem;
  color: var(--medium-gray);
  margin-bottom: var(--spacing-sm);
}

.file-upload-text {
  color: var(--light-gray);
  font-size: 0.9rem;
}

.file-upload-text strong {
  color: var(--primary-yellow);
}

.file-preview {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--dark-gray);
  border-radius: var(--radius-sm);
  display: none;
}

.file-preview.active {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.file-preview img {
  max-width: 80px;
  max-height: 80px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.file-preview-info {
  flex: 1;
}

.file-preview-name {
  font-weight: 600;
  color: var(--white);
  word-break: break-all;
}

.file-preview-size {
  font-size: 0.8rem;
  color: var(--medium-gray);
}

.file-preview-remove {
  background: none;
  border: none;
  color: var(--error);
  cursor: pointer;
  font-size: 1.25rem;
  padding: var(--spacing-sm);
}

/* Form Help Text */
.form-help {
  font-size: 0.85rem;
  color: var(--medium-gray);
  margin-top: var(--spacing-xs);
}

/* Form Error */
.form-error {
  font-size: 0.85rem;
  color: var(--error);
  margin-top: var(--spacing-xs);
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  border-color: var(--error);
}

.form-group.has-error .form-error {
  display: block;
}

/* Safety Note */
.safety-note {
  background-color: rgba(255, 193, 7, 0.1);
  border: 1px solid var(--warning);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.safety-note-icon {
  font-size: 1.5rem;
  color: var(--warning);
}

.safety-note-text {
  font-size: 0.9rem;
  color: var(--warning);
}

/* Privacy Statement */
.privacy-statement {
  background-color: var(--dark-gray);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.85rem;
  color: var(--light-gray);
}

.privacy-statement h4 {
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

/* Submit Button */
.form-submit {
  width: 100%;
  margin-top: var(--spacing-lg);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Form Messages */
.form-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  display: none;
}

.form-message.active {
  display: block;
}

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

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

/* Rider Code Validation */
.rider-code-group {
  position: relative;
}

.rider-code-status {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
}

.rider-code-status.valid {
  color: var(--success);
}

.rider-code-status.invalid {
  color: var(--error);
}

.rider-code-status.loading {
  color: var(--primary-yellow);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(360deg); }
}

.rider-code-message {
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
}

.rider-code-message.valid {
  color: var(--success);
}

.rider-code-message.invalid {
  color: var(--error);
}

/* ============================================
   I Am GUS Selection Page
   ============================================ */

.selection-page {
  min-height: 100vh;
  background-color: var(--dark-gray);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.selection-container {
  max-width: 600px;
  width: 100%;
  text-align: center;
}

.selection-title {
  color: var(--primary-yellow);
  margin-bottom: var(--spacing-md);
}

.selection-subtitle {
  color: var(--light-gray);
  margin-bottom: var(--spacing-xxl);
}

.selection-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.selection-card {
  background-color: var(--black);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-decoration: none;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.selection-card:hover {
  border-color: var(--primary-yellow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
}

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

.selection-card-title {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.selection-card-description {
  color: var(--light-gray);
  font-size: 0.9rem;
}

/* ============================================
   Sponsors Page
   ============================================ */

.sponsors-page {
  min-height: 100vh;
  background-color: var(--dark-gray);
  padding: var(--spacing-xl);
}

.sponsors-container {
  max-width: 1200px;
  margin: 0 auto;
}

.sponsors-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.sponsors-header h1 {
  color: var(--primary-yellow);
}

.sponsors-tier {
  margin-bottom: var(--spacing-xxl);
}

.sponsors-tier-title {
  color: var(--white);
  text-align: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--medium-gray);
}

.sponsors-tier-title.major {
  color: var(--primary-yellow);
  border-color: var(--primary-yellow);
}

.sponsors-tier-title.gold {
  color: #FFD700;
  border-color: #FFD700;
}

.sponsors-tier-title.silver {
  color: #C0C0C0;
  border-color: #C0C0C0;
}

.sponsors-tier-title.bronze {
  color: #CD7F32;
  border-color: #CD7F32;
}

.sponsors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.sponsors-grid.major {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.sponsor-card {
  background-color: var(--black);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 150px;
}

.sponsor-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.sponsor-card.major {
  min-height: 200px;
  border: 2px solid var(--primary-yellow);
}

.sponsor-logo {
  max-width: 100%;
  max-height: 80px;
  object-fit: contain;
  margin-bottom: var(--spacing-md);
}

.sponsor-card.major .sponsor-logo {
  max-height: 120px;
}

.sponsor-name {
  color: var(--white);
  font-weight: 600;
}

.sponsors-empty {
  text-align: center;
  color: var(--medium-gray);
  padding: var(--spacing-xxl);
}

/* Loading Spinner */
.loading-spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xxl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--medium-gray);
  border-top-color: var(--primary-yellow);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ============================================
   Honeypot (Hidden from users, visible to bots)
   ============================================ */

.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablets and below */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .landing-title {
    font-size: 2.5rem;
  }
  
  .landing-subtitle {
    font-size: 1.25rem;
  }
  
  .form-container {
    padding: var(--spacing-lg);
  }
  
  .landing-footer {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .sponsors-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  .sponsors-grid.major {
    grid-template-columns: 1fr;
  }
}

/* Mobile phones */
@media (max-width: 480px) {
  html {
    font-size: 13px;
  }
  
  .landing-title {
    font-size: 2rem;
  }
  
  .landing-subtitle {
    font-size: 1rem;
  }
  
  .btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.25rem;
  }
  
  .form-page {
    padding: var(--spacing-md);
  }
  
  .form-container {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
  }
  
  .selection-card {
    padding: var(--spacing-lg);
  }
  
  .selection-card-icon {
    font-size: 2rem;
  }
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}