:root{--build-id:"b2cb1b83-f62f-4209-aa35-b781eb61a7fe";}
/* CSS Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #22c55e;
  --bg: #f0fdf4;
  --text: #14532d;
  --accent: #4ade80;
  --heading: var(--text);
  --link: var(--text);
  --border: #000;
}

body {
  font-family: "Segoe UI Variable", "Malgun Gothic", "Noto Sans KR", Arial, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  color: var(--text);
  background-color: var(--bg);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Focus Styles */
a:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* Header & Navigation */
header {
  background-color: #fff;
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  text-transform: uppercase;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.75rem;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text);
}

nav ul {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

nav a {
  color: var(--link);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--primary);
}

nav a[aria-current="page"] {
  color: var(--primary);
  border-bottom: 3px solid var(--primary);
  padding-bottom: 0.25rem;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.008em;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0;
  color: var(--heading);
  margin-bottom: 1rem;
}

/* Sections */
section {
  padding: 6rem 0;
}

.alt-bg {
  background-color: #fff;
}

.page-header {
  background-color: #fff;
  text-align: center;
  padding: 4rem 0;
}

.header-desc {
  font-size: 1.125rem;
  color: var(--text);
  max-width: 700px;
  margin: 0 auto;
}

.section-intro,
.intro-text {
  font-size: 1.125rem;
  color: var(--text);
  margin-bottom: 3rem;
}

/* Hero Section */
.hero-section {
  background-color: #fff;
  padding: 5rem 0;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-text {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: var(--text);
}

.hero-icon {
  margin-top: 3rem;
  color: var(--primary);
}

/* Timeline */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.timeline-item {
  position: relative;
  padding-left: 3rem;
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 0.5rem;
  font-size: 1.5rem;
  color: var(--primary);
}

/* Grids */
.comparison-grid,
.equipment-grid,
.mission-grid,
.benefit-grid,
.mistake-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 4rem;
  margin-bottom: 3rem;
}

.comparison-card,
.equipment-card,
.mission-card,
.benefit-card,
.mistake-card,
.exercise-card {
  border: 3px solid var(--border);
  border-radius: 0;
  padding: 2rem;
}

.card-icon,
.equip-symbol,
.mission-icon,
.benefit-icon,
.mistake-icon,
.exercise-symbol,
.contact-symbol {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
  color: var(--primary);
}

.check-list {
  list-style: none;
  padding-left: 0;
}

.check-list li {
  padding: 0.5rem 0;
  position: relative;
  padding-left: 1.5rem;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.comparison-note {
  margin-top: 2rem;
  font-style: italic;
  color: var(--text);
}

/* Principle & Level Lists */
.principle-list,
.level-timeline,
.health-list,
.habit-list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.principle-item,
.level-box,
.health-item,
.habit-item,
.schedule-box {
  background-color: #fff;
  padding: 2rem;
  border-left: 4px solid var(--primary);
}

/* Exercise Grid */
.exercise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
}

/* CTA Section */
.cta-section {
  background-color: var(--primary);
  color: #fff;
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 1.5rem;
}

.cta-text {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: #fff;
}

.cta-button {
  display: inline-block;
  background-color: var(--border);
  color: #fff;
  padding: 1.5rem 3.5rem;
  border-radius: 0;
  font-weight: 800;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s;
}

.cta-button:hover {
  background-color: var(--text);
}

/* Contact Page */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 2rem;
}

.contact-intro {
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.tips-list {
  list-style: none;
  padding-left: 0;
}

.tips-list li {
  padding: 0.75rem 0;
  position: relative;
  padding-left: 1.5rem;
}

.tips-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.faq-item {
  background-color: #fff;
  padding: 2rem;
  border: 3px solid var(--border);
}

/* Footer */
footer {
  background-color: var(--text);
  color: #fff;
  padding: 3rem 0;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

.footer-brand strong {
  display: block;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #fff;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-contact p {
  margin: 0.5rem 0;
}

/* Doc Container */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.doc-container p {
  margin: 1.5rem 0;
}

.doc-container a {
  color: var(--primary);
  text-decoration: underline;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border-top: 2px solid var(--primary);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

  .menu-checkbox:checked ~ nav {
    max-height: 500px;
  }

  nav ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem 2rem;
  }

  nav li {
    border-bottom: 1px solid #eee;
  }

  nav a {
    display: block;
    padding: 1rem 0;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  section {
    padding: 3rem 0;
  }

  .comparison-grid,
  .equipment-grid,
  .mission-grid,
  .benefit-grid,
  .mistake-grid,
  .exercise-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}