:root {
  --bg-canvas: #eef7f2;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f9fbf9;
  --text-primary: #1f2937;
  --text-muted: #4b5563;
  --accent-primary: #14532d;
  --accent-secondary: #064e3b;
  --border-subtle: rgba(20, 83, 45, 0.15);
  
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 12px 32px -4px rgba(20, 83, 45, 0.15);
  --shadow-soft: 0 4px 12px rgba(20, 83, 45, 0.05);
  
  --radius-card: 4px;
  --radius-btn: 0px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  lang: en;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-wrap: anywhere;
  hyphens: auto;
}

h1, h2, h3, h4, h5, h6, .brand {
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-top: 0;
  color: var(--accent-primary);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-card);
  object-fit: cover;
}

.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

/* Header & Nav */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 2rem;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand a {
  font-size: 1.25rem;
  color: var(--accent-primary);
  text-decoration: none;
}

.site-nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav-links a {
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  color: var(--accent-primary);
  font-weight: 600;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--accent-primary);
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 768px) {
  .site-nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    padding: 2rem;
    box-shadow: var(--shadow-elevation);
  }
  .site-nav-links.active {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-btn);
  background: transparent;
  color: var(--accent-primary);
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-kinetic);
  text-align: center;
}

.btn:hover, .btn.primary {
  background: var(--accent-primary);
  color: var(--bg-surface);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

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

/* Layout Containers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.content-wrapper {
  max-width: 72ch;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  padding: 12rem 2rem 6rem;
  background: var(--bg-canvas);
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--accent-primary);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 60ch;
  margin: 0 auto 3rem;
}

/* Soft Radial Backgrounds */
.radial-bg {
  position: relative;
  overflow: hidden;
}

.radial-bg::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150vw;
  height: 150vw;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(20, 83, 45, 0.04) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* Numbered Step-by-Step Flow */
.curriculum-flow {
  position: relative;
  padding: 4rem 0;
  max-width: 800px;
  margin: 0 auto;
}

.curriculum-flow::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 1px;
  background: var(--border-subtle);
}

.step-node {
  position: relative;
  padding-left: 5rem;
  margin-bottom: 4rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.7s var(--ease-kinetic);
}

.step-node.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  background: var(--bg-canvas);
  border: 1px solid var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  color: var(--accent-primary);
  font-size: 1.1rem;
  font-weight: 600;
  z-index: 2;
}

/* Cards Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 4rem 0;
}

.card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  transition: all 0.4s var(--ease-kinetic);
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px) scale(1.015);
  box-shadow: var(--shadow-elevation);
  background: var(--bg-surface-hover);
}

.card h3 {
  margin-bottom: 1rem;
}

.card img {
  aspect-ratio: 4/3;
  margin-bottom: 1.5rem;
}

/* Interative Panels / FAQ */
.accordion {
  margin: 2rem 0;
}

.accordion-item {
  border-bottom: 1px solid var(--border-subtle);
}

.accordion-btn {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.5rem 0;
  font-size: 1.1rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-kinetic);
  color: var(--text-muted);
}

.accordion-content p {
  padding-bottom: 1.5rem;
  margin: 0;
}

/* Forms & Tools */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-family: 'Arial Narrow', 'Helvetica Neue', Helvetica, sans-serif;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  background: var(--bg-surface);
  font-family: inherit;
  color: var(--text-primary);
  transition: border-color 0.3s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.tool-result {
  margin-top: 2rem;
  padding: 2rem;
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  display: none;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 2rem;
  margin-top: 6rem;
  background: var(--bg-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-col h4 {
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 3rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.7s var(--ease-kinetic);
}
.reveal.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}