/**
 * My Report : ADHD — shared styles (design system from files/index.html).
 * Include on any page: <link rel="stylesheet" href="/assets/css/main.css">
 */
:root {
  --bg-primary: #FAFAF7;
  --bg-secondary: #F0EDE6;
  --bg-card: #FFFFFF;
  --text-primary: #1A1A1A;
  --text-secondary: #5A5A5A;
  --text-muted: #8A8A8A;
  --accent: #E8703A;
  --accent-light: #FFF0E8;
  --accent-dark: #C45A28;
  --teal: #2A9D8F;
  --teal-light: #E6F5F3;
  --purple: #7B68EE;
  --purple-light: #F0EEFF;
  --border: #E5E2DB;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Noto Sans KR', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(250,250,247,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  transition: box-shadow 0.3s;
}
nav.scrolled { box-shadow: var(--shadow-md); }

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-dot {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px; height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.mobile-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  transition: 0.3s;
}

/* ─── HERO ─── */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(232,112,58,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -150px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(42,157,143,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}
.hero h1 .highlight {
  position: relative;
  color: var(--accent);
}
.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 2px; left: -4px; right: -4px;
  height: 12px;
  background: var(--accent-light);
  z-index: -1;
  border-radius: 4px;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta {
  display: flex;
  gap: 12px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  transition: all 0.25s;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(232,112,58,0.3);
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,112,58,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-visual {
  display: flex;
  justify-content: center;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}
.hero-illustration {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 1;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.hero-illustration::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(232,112,58,0.03) 20px, rgba(232,112,58,0.03) 40px);
}
.brain-icon {
  font-size: 8rem;
  opacity: 0.15;
  position: absolute;
}
.floating-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  z-index: 1;
}
.float-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  font-weight: 500;
  animation: float 4s ease-in-out infinite;
  min-width: 240px;
}
.float-card:nth-child(2) { animation-delay: -1.3s; transform: translateX(30px); }
.float-card:nth-child(3) { animation-delay: -2.6s; transform: translateX(-10px); }
.float-card-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── SECTION COMMON ─── */
section { padding: 80px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* ─── FEATURES ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover::before { opacity: 1; }
.feature-card:nth-child(1)::before { background: var(--accent); }
.feature-card:nth-child(2)::before { background: var(--teal); }
.feature-card:nth-child(3)::before { background: var(--purple); }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ─── ARTICLE (본문 콘텐츠) ─── */
.article-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.article-wrapper {
  max-width: 760px;
  margin: 0 auto;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.article-meta .tag {
  background: var(--accent-light);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.78rem;
}

.article-wrapper h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.8px;
  margin-bottom: 24px;
  line-height: 1.3;
}
.article-wrapper h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 14px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-wrapper h3 .num {
  width: 32px; height: 32px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}
.article-wrapper p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.tip-box {
  background: var(--teal-light);
  border-left: 4px solid var(--teal);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 24px 0;
}
.tip-box .tip-label {
  font-weight: 700;
  color: var(--teal);
  font-size: 0.85rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.tip-box p {
  font-size: 0.92rem;
  color: #2A6B63;
  margin-bottom: 0;
}

.warning-box {
  background: var(--purple-light);
  border-left: 4px solid var(--purple);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 24px 0;
}
.warning-box .tip-label {
  font-weight: 700;
  color: var(--purple);
  font-size: 0.85rem;
  margin-bottom: 6px;
}
.warning-box p {
  font-size: 0.92rem;
  color: #4A3CB0;
  margin-bottom: 0;
}

/* ─── FAQ (구조화 데이터용) ─── */
.faq-section { background: var(--bg-secondary); }
.faq-list {
  max-width: 760px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-q {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}
.faq-q:hover { background: var(--bg-secondary); }
.faq-q .arrow {
  font-size: 1.2rem;
  transition: transform 0.3s;
  color: var(--text-muted);
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 24px 20px;
}
.faq-a p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ─── NEWSLETTER ─── */
.newsletter {
  text-align: center;
}
.newsletter-box {
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--purple-light) 100%);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  max-width: 640px;
  margin: 0 auto;
}
.newsletter-box h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.newsletter-box p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.newsletter-form {
  display: flex;
  gap: 10px;
  max-width: 420px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 14px 18px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-body);
  background: var(--bg-card);
  outline: none;
  transition: border 0.2s;
}
.newsletter-form input:focus { border-color: var(--accent); }

/* ─── FOOTER ─── */
footer {
  background: var(--text-primary);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo {
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
}
.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

/* ─── PAGE SECTIONS (About, Privacy, Contact) ─── */
.page-section {
  display: none;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 80px;
  min-height: 100vh;
}
.page-section.active { display: block; }
.page-section .page-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.page-section h1 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.page-section .page-body {
  max-width: 760px;
}
.page-section .page-body h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}
.page-section .page-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 14px;
}

.contact-form {
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}
.contact-form label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  display: block;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-body);
  background: var(--bg-card);
  outline: none;
  transition: border 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--accent); }
.contact-form textarea { min-height: 140px; resize: vertical; }

/* ─── MAIN WRAPPER ─── */
#main-content.hidden { display: none; }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--bg-primary);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 20px;
    box-shadow: var(--shadow-md);
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero h1 { font-size: 2.2rem; }
  .hero-visual { order: -1; }
  .hero-illustration { max-width: 320px; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .newsletter-form { flex-direction: column; }
  .hero-cta { flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* ─── BREADCRUMB ─── */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text-muted); }

/* ─── AD PLACEHOLDER ─── */
.ad-placeholder {
  background: var(--bg-secondary);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin: 32px 0;
}

/* English locale: body font per design system (Outfit) */
html[lang="en"] {
  --font-body: 'Outfit', sans-serif;
}

/* Static pages & article listing */
.page-static {
  padding-top: calc(var(--nav-height) + 48px);
  padding-bottom: 80px;
  min-height: 60vh;
}
.page-static .page-header {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.article-page {
  padding-top: calc(var(--nav-height) + 24px);
}
.lang-switch {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent);
}
.lang-switch:hover {
  opacity: 0.85;
}

.posts-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}
.post-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.post-preview-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.post-preview-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}
.post-preview-summary {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.article-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.article-list-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-list-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}
.article-list-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.articles-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.filter-btn {
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-secondary);
  transition: border 0.2s, background 0.2s;
}
.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.filter-btn.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

@media (max-width: 768px) {
  .posts-preview-grid {
    grid-template-columns: 1fr;
  }
}