/* ============================================
   Checkpoint Learning – Connected Curriculum
   Landing Page Styles
   ============================================ */

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

:root {
  /* Color Palette - Orange Accent Theme */
  --color-primary: #ff6633;
  --color-primary-dark: #e55a2b;
  --color-primary-light: #22c55e;
  --color-primary-bg: #f0fdf4;
  
  --color-text: #1f2937;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;
  
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-bg-card: #ffffff;
  
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  
  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* 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 -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ============================================
   Header
   ============================================ */
.header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
}

.logo:hover {
  color: var(--color-primary-dark);
}

.contact-link {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-primary-bg) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 3fr 2fr;
    gap: var(--spacing-3xl);
  }
}

.hero-content h1 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-content h1 {
    font-size: 2.75rem;
  }
}

.hero-subheadline {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

.hero-bullets {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.hero-bullets li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
  color: var(--color-text);
}

.bullet-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.bullet-icon::before {
  content: "";
  width: 0.4rem;
  height: 0.7rem;
  border-right: 2.5px solid #ffffff;
  border-bottom: 2.5px solid #ffffff;
  transform: rotate(45deg);
  margin-bottom: 0.15rem;
}

.hero-microcopy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
}

/* Hero Card */
.hero-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

.hero-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

.hero-card-list {
  list-style: none;
}

.hero-card-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  font-size: 0.9375rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.hero-card-list li:last-child {
  border-bottom: none;
}

.card-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.card-check::before {
  content: "";
  width: 0.5rem;
  height: 0.25rem;
  border-left: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-submit {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1.0625rem;
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.testimonial {
  background-color: var(--color-primary-bg);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-md);
  margin: 0;
}

.testimonial-quote {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.testimonial-author {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  font-style: normal;
}

.testimonial-role {
  font-weight: 400;
  color: var(--color-text-secondary);
}

@media (max-width: 900px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* ============================================
   Social Proof Strip
   ============================================ */
.social-proof {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.social-proof-heading {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

.logos-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.partner-logo-img {
  max-height: 60px;
  max-width: 180px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.social-proof-subtext {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-bg);
}

.how-it-works h2 {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-2xl);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: box-shadow var(--transition-normal);
}

.step-card:hover {
  box-shadow: var(--shadow-md);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: 50%;
  margin-bottom: var(--spacing-md);
}

.step-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.reassurance-text {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   Registration Form Section
   ============================================ */
.registration {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(180deg, var(--color-primary-bg) 0%, var(--color-bg) 100%);
}

.form-wrapper {
  max-width: 560px;
  margin: 0 auto;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
}

.form-wrapper h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.form-intro {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

/* Honeypot - hidden from users */
.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  height: 0;
  width: 0;
  overflow: hidden;
}

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

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

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

.form-group .optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.15);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1.25rem;
  padding-right: 2.5rem;
}

/* Hidden class for conditional fields */
.hidden {
  display: none !important;
  visibility: hidden !important;
  height: 0 !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Checkbox Rows */
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.checkbox-row input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.125rem;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox-row label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  cursor: pointer;
}

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

/* Form Note */
.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-lg);
  line-height: 1.5;
}

/* Status Messages */
#form-status-message {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  text-align: center;
  display: none;
}

#form-status-message.success {
  display: block;
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

#form-status-message.error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  text-align: center;
}

.footer-inner p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

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

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Loading state for button */
.btn.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn.loading::after {
  content: "";
  position: absolute;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid #ffffff;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero {
    padding: var(--spacing-2xl) 0;
  }
  
  .hero-content h1 {
    font-size: 1.75rem;
  }
  
  .hero-card {
    padding: var(--spacing-lg);
  }
  
  .form-wrapper {
    padding: var(--spacing-lg);
  }
  
  .form-wrapper h2 {
    font-size: 1.25rem;
  }
  
  .partner-logo-img {
    max-height: 50px;
    max-width: 150px;
  }
}

/* ============================================
   Success/Confirmation Page Styles
   ============================================ */

.success-page {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  background-color: var(--color-primary-bg);
}

.success-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl) var(--spacing-xl);
  max-width: 600px;
  text-align: center;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-icon-check {
  background-color: var(--color-success);
  position: relative;
}

.success-icon-check::after {
  content: "";
  width: 24px;
  height: 40px;
  border: solid white;
  border-width: 0 6px 6px 0;
  transform: rotate(45deg);
  margin-bottom: 8px;
}

.success-card h1 {
  font-size: 1.75rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.success-message {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.success-note {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-secondary:hover {
  background-color: var(--color-border-light);
  border-color: var(--color-text-muted);
}

.success-card .btn-primary {
  display: inline-block;
  padding: 0.875rem 2rem;
  background-color: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
  margin-bottom: var(--spacing-md);
}

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

.external-site-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}