/* ============================================
   UI ONLY — No Backend
   College CTA Styles
   Light & Dark Theme Support
   WCAG AA Compliant
   ============================================ */

/* ============================================
   CSS CUSTOM PROPERTIES - DESIGN TOKENS
   ============================================ */

:root {
  /* Light Theme Colors */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-secondary: #64748b;
  --color-secondary-hover: #475569;

  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;

  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;

  --color-text-primary: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;

  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;

  --color-border: #e2e8f0;
  --color-border-focus: #2563eb;

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;

  --font-size-xs: 0.75rem;
  /* 12px */
  --font-size-sm: 0.875rem;
  /* 14px */
  --font-size-base: 1rem;
  /* 16px */
  --font-size-lg: 1.125rem;
  /* 18px */
  --font-size-xl: 1.25rem;
  /* 20px */
  --font-size-2xl: 1.5rem;
  /* 24px */
  --font-size-3xl: 2rem;
  /* 32px */
  --font-size-4xl: 2.5rem;
  /* 40px */
  --font-size-5xl: 3rem;
  /* 48px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.6;

  /* Spacing (8px base unit) */
  --spacing-1: 0.5rem;
  /* 8px */
  --spacing-2: 1rem;
  /* 16px */
  --spacing-3: 1.5rem;
  /* 24px */
  --spacing-4: 2rem;
  /* 32px */
  --spacing-5: 2.5rem;
  /* 40px */
  --spacing-6: 3rem;
  /* 48px */
  --spacing-8: 4rem;
  /* 64px */
  --spacing-12: 6rem;
  /* 96px */

  /* Border Radius */
  --radius-sm: 0.25rem;
  /* 4px */
  --radius-md: 0.5rem;
  /* 8px */
  --radius-lg: 0.75rem;
  /* 12px */
  --radius-xl: 1rem;
  /* 16px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-tooltip: 1050;
}

/* Dark Theme */
.dark-theme {
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-primary-light: #1e3a8a;
  --color-secondary: #94a3b8;
  --color-secondary-hover: #cbd5e1;

  --color-accent: #fbbf24;
  --color-accent-hover: #fcd34d;

  --color-success: #34d399;
  --color-error: #f87171;
  --color-warning: #fbbf24;
  --color-info: #60a5fa;

  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;

  --color-border: #334155;
  --color-border-focus: #3b82f6;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

/* Auto Dark Mode based on system preference */
@media (prefers-color-scheme: dark) {
  :root:not(.light-theme) {
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #1e3a8a;
    --color-secondary: #94a3b8;
    --color-secondary-hover: #cbd5e1;

    --color-accent: #fbbf24;
    --color-accent-hover: #fcd34d;

    --color-success: #34d399;
    --color-error: #f87171;
    --color-warning: #fbbf24;
    --color-info: #60a5fa;

    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-border: #334155;
    --color-border-focus: #3b82f6;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  }
}

/* ============================================
   BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   THEME TOGGLE BUTTON
   ============================================ */

.theme-toggle {
  position: fixed;
  top: var(--spacing-3);
  right: var(--spacing-3);
  z-index: var(--z-fixed);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
  background-color: var(--color-bg-tertiary);
  transform: scale(1.05);
}

.theme-toggle:focus {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-primary);
}

.theme-toggle .moon-icon {
  display: none;
}

.dark-theme .theme-toggle .sun-icon {
  display: none;
}

.dark-theme .theme-toggle .moon-icon {
  display: block;
}

/* ============================================
   HERO CTA - TOP SECTION
   ============================================ */

.hero-cta {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-8) var(--spacing-3);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.8) 0%, rgba(124, 58, 237, 0.8) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin-bottom: var(--spacing-3);
  line-height: var(--line-height-tight);
}

.hero-tagline {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-6);
  line-height: var(--line-height-normal);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-2);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 48px;
  min-width: 48px;
  text-align: center;
}

.btn:focus {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.btn-secondary:hover:not(:disabled) {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn:disabled,
.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-submit {
  width: 100%;
  margin-top: var(--spacing-2);
}

/* ============================================
   CONTACT SECTION - MIDDLE CTA
   ============================================ */

.contact-section {
  padding: var(--spacing-12) var(--spacing-3);
  background-color: var(--color-bg-secondary);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
}

.section-header h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-6);
}

/* ============================================
   CONTACT INFORMATION
   ============================================ */

.contact-info {
  background-color: var(--color-bg-primary);
  padding: var(--spacing-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.contact-info h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-4);
}

.info-item {
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
}

.info-item:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.info-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  margin-top: 2px;
}

.info-content h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-1);
}

.info-content p,
.info-content address {
  font-style: normal;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.contact-link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.contact-link:focus {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Map Container */
.map-container {
  margin-top: var(--spacing-4);
}

.map-placeholder {
  background-color: var(--color-bg-tertiary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  text-align: center;
  min-height: 250px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.map-placeholder svg {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-2);
}

.map-placeholder p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-form-wrapper {
  background-color: var(--color-bg-primary);
  padding: var(--spacing-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.contact-form-wrapper h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-4);
}

.form-group {
  margin-bottom: var(--spacing-4);
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-1);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-secondary);
}

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

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

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

.form-group.has-error .form-input:focus,
.form-group.has-error .form-select:focus,
.form-group.has-error .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group.has-success .form-input,
.form-group.has-success .form-select,
.form-group.has-success .form-textarea {
  border-color: var(--color-success);
  padding-right: 3rem;
}

.error-message {
  display: none;
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: var(--spacing-1);
}

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

.success-icon {
  display: none;
  position: absolute;
  right: 1rem;
  top: 2.5rem;
  color: var(--color-success);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.form-group.has-success .success-icon {
  display: block;
}

.hint-text {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-1);
}

/* Textarea Footer */
.textarea-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-1);
}

.char-counter {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.char-counter.warning {
  color: var(--color-warning);
}

.char-counter.error {
  color: var(--color-error);
}

/* Radio Buttons */
.radio-group {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.radio-item input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.radio-item label {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  cursor: pointer;
}

/* Checkbox */
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-2);
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: var(--line-height-normal);
}

/* Success Message */
.success-message {
  display: none;
  background-color: rgba(16, 185, 129, 0.1);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3);
  margin-top: var(--spacing-4);
  align-items: center;
  gap: var(--spacing-2);
}

.success-message.show {
  display: flex;
}

.success-message svg {
  flex-shrink: 0;
  color: var(--color-success);
}

.success-message p {
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
  margin: 0;
}

/* ============================================
   FOOTER CTA
   ============================================ */

.footer-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  padding: var(--spacing-8) var(--spacing-3);
  text-align: center;
}

.footer-content h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin-bottom: var(--spacing-2);
}

.footer-content p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-4);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-footer {
  background-color: #ffffff;
  color: var(--color-primary);
  border-color: #ffffff;
}

.btn-footer:hover {
  background-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet (640px and up) */
@media (min-width: 640px) {
  .hero-title {
    font-size: var(--font-size-5xl);
  }

  .radio-group {
    gap: var(--spacing-4);
  }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-8);
  }

  .hero-buttons {
    gap: var(--spacing-3);
  }
}

/* Mobile adjustments */
@media (max-width: 639px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-tagline {
    font-size: var(--font-size-base);
  }

  .section-header h2 {
    font-size: var(--font-size-3xl);
  }

  .footer-content h3 {
    font-size: var(--font-size-2xl);
  }

  .contact-info,
  .contact-form-wrapper {
    padding: var(--spacing-4);
  }

  .theme-toggle {
    width: 44px;
    height: 44px;
    top: var(--spacing-2);
    right: var(--spacing-2);
  }
}