/* ==========================================================================
   INDONESIA UPPER - DESIGN DNA: D-024413-08
   Archetype: Warm Wellness Journal
   Color System: Color Deep Teal
   Typography: Type Compact Reference
   Layout System: Layout Offset Column
   Navigation: Nav Contextual
   Hero System: Hero Editorial Offset
   Card System: Cards Horizontal Reference
   Section System: Sections Editorial Zones
   Footer: Footer Reference
   ========================================================================== */

:root {
  /* Color System: Color Deep Teal */
  --bg-color: #F0F4F4;
  --surface-color: #FFFFFF;
  --text-primary: #0F2929;
  --text-secondary: #4D6666;
  --accent-color: #0F766E;
  --border-color: #CCE0E0;
  --muted-bg: #E0EBEB;
  --interactive-color: #115E59;
  --interactive-hover: #0d4a46;

  /* Typography: Type Compact Reference */
  --font-sans: 'SF Pro Text', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: ui-serif, serif;
  --font-mono: ui-monospace, monospace;

  /* Spacing Tokens */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;

  /* Container */
  --container-max: 1200px;
  --gutter: 1.5rem;
  --border-radius: 4px;
  --border-subtle: 1px solid var(--border-color);
}

/* Reset & Bulletproof Mobile */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

img, table, video, iframe, canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 1rem;
  background: var(--text-primary);
  color: var(--bg-color);
  padding: 0.75rem 1.25rem;
  z-index: 99999;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 4px 4px;
}

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

/* Typography Assignments */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-weight: 600;
}

h1 {
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: 1.5rem;
  line-height: 1.25;
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: 1.25rem;
  line-height: 1.25;
  margin-bottom: var(--space-xs);
}

p {
  font-size: 0.875rem; /* ~14px token scaled with 16px root gives readable 15-16px */
  font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1rem);
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  max-width: 72ch;
}

p.lead {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--text-primary);
  font-weight: 500;
}

a {
  color: var(--accent-color);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover, a:focus {
  color: var(--interactive-color);
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Global Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Semantic Header & Nav Contextual */
header {
  background-color: var(--surface-color);
  border-bottom: var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 1000;
}

header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.875rem;
  padding-bottom: 0.875rem;
  min-height: 64px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: #fff;
  border-radius: 6px;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

/* Nav Contextual */
nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-contextual-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 0.875rem;
}

.nav-link {
  text-decoration: none;
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.4rem 0.6rem;
  border-radius: var(--border-radius);
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--muted-bg);
}

.nav-link[aria-current="page"] {
  color: var(--accent-color);
  background-color: var(--muted-bg);
  font-weight: 600;
}

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-color);
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  background: var(--muted-bg);
  border-radius: var(--border-radius);
}

.nav-back:hover {
  background: #d4e3e3;
  color: var(--interactive-color);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

/* Hero Editorial Offset */
.hero-editorial-offset {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  position: relative;
  background: var(--surface-color);
  border-bottom: var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-2xl);
  align-items: flex-start;
}

.hero-content {
  padding-right: var(--space-lg);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-color);
  background: var(--muted-bg);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(2rem, 1.6rem + 1.8vw, 2.75rem);
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero-offset-media {
  position: relative;
  margin-top: var(--space-lg);
  margin-bottom: calc(var(--space-2xl) * -1.5);
  z-index: 5;
}

.hero-img-wrap {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 41, 41, 0.08);
  border: 4px solid var(--surface-color);
}

.hero-img-wrap img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hero-caption {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-style: italic;
}

/* Layout Offset Column (12-Col Modular) */
.layout-offset-column {
  display: grid;
  grid-template-columns: 3.5fr 8.5fr;
  gap: var(--space-2xl);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  align-items: start;
}

aside.sidebar-offset {
  position: sticky;
  top: 80px;
  background: transparent;
}

.sidebar-panel {
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sidebar-title {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-color);
  margin-bottom: var(--space-md);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-nav-item a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  transition: all 0.15s ease;
}

.sidebar-nav-item a:hover {
  color: var(--text-primary);
  background: var(--muted-bg);
  border-left-color: var(--accent-color);
}

.sidebar-nav-item.active a {
  color: var(--accent-color);
  background: var(--muted-bg);
  border-left-color: var(--accent-color);
  font-weight: 600;
}

.reading-meta-box {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  border-top: var(--border-subtle);
  padding-top: var(--space-md);
  margin-top: var(--space-md);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.meta-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.meta-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Sections Editorial Zones */
section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: var(--border-subtle);
}

section.zone-muted {
  background-color: var(--muted-bg);
}

section.zone-surface {
  background-color: var(--surface-color);
}

section.zone-alt {
  background-color: #E6EEEE;
}

.section-header {
  margin-bottom: var(--space-xl);
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-color);
  margin-bottom: 0.25rem;
}

.section-title {
  font-size: 1.5rem;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-intro {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* Card System: Cards Horizontal Reference */
.cards-grid-horizontal {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.card-ref {
  display: grid;
  grid-template-columns: 140px 1fr;
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  color: inherit;
}

.card-ref:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.card-ref-badge-col {
  background: var(--muted-bg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border-right: var(--border-subtle);
}

.card-ref-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
}

.card-ref-category {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  font-weight: 600;
}

.card-ref-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-ref-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  text-decoration: none;
}

.card-ref-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.card-ref-meta {
  font-size: 0.75rem;
  color: var(--accent-color);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Grid Modular 12 utilities */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* Feature Box / Inset Panel */
.feature-box {
  background: var(--surface-color);
  border: var(--border-subtle);
  border-left: 4px solid var(--accent-color);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.feature-box h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.feature-box p:last-child {
  margin-bottom: 0;
}

/* Article Step by Step System */
.step-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.step-card {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: var(--space-lg);
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.step-content p:last-child {
  margin-bottom: 0;
}

/* Pullquote / Editorial Quote */
blockquote.editorial-quote {
  border-left: 3px solid var(--accent-color);
  padding: var(--space-md) var(--space-lg);
  background: var(--muted-bg);
  margin: var(--space-xl) 0;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-primary);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

blockquote.editorial-quote cite {
  display: block;
  font-style: normal;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 600;
}

/* FAQ Details / Accordion */
.faq-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

details.faq-item {
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-md) var(--space-lg);
  transition: all 0.2s ease;
}

details.faq-item[open] {
  border-color: var(--accent-color);
  background: #fafcfc;
}

summary.faq-question {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 44px;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--accent-color);
  margin-left: 1rem;
}

details.faq-item[open] summary.faq-question::after {
  content: "–";
}

.faq-answer {
  padding-top: var(--space-sm);
  border-top: 1px dashed var(--border-color);
  margin-top: var(--space-sm);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* Interactive Checklist Component */
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  transition: background 0.15s ease;
}

.checklist-item:hover {
  background: var(--muted-bg);
}

.checklist-item input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--accent-color);
  margin-top: 0.15rem;
  cursor: pointer;
}

.checklist-text {
  flex: 1;
}

.checklist-text strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.checklist-text span {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.checklist-score-box {
  background: var(--surface-color);
  border: 2px solid var(--accent-color);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-top: var(--space-xl);
  text-align: center;
}

.checklist-score-val {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

/* CTA System: Cta Minimal */
.cta-box {
  background: var(--surface-color);
  border: var(--border-subtle);
  border-radius: var(--border-radius);
  padding: var(--space-2xl);
  text-align: left;
  margin: var(--space-2xl) 0;
}

.cta-box h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.btn-minimal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--accent-color);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--accent-color);
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-minimal:hover {
  background-color: var(--interactive-color);
  border-color: var(--interactive-color);
  color: #FFFFFF;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  min-height: 44px;
  min-width: 44px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  background-color: var(--muted-bg);
  color: var(--interactive-color);
}

.cta-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--surface-color);
}

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

.form-feedback {
  display: none;
  padding: var(--space-md);
  margin-top: var(--space-md);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
}

.form-feedback.success {
  display: block;
  background: #E6F4EA;
  color: #137333;
  border: 1px solid #CEEAD6;
}

/* Semantic Footer: Footer Reference */
footer {
  background-color: #0B1F1F;
  color: #B2CCCC;
  border-top: 2px solid var(--accent-color);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  font-size: 0.8125rem;
}

footer a {
  color: #E0EBEB;
  text-decoration: none;
}

footer a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-reference-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-col h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #CCE0E0;
  margin-bottom: var(--space-md);
  font-weight: 700;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-citation-box {
  background: #081717;
  border: 1px solid #1A3838;
  border-radius: var(--border-radius);
  padding: var(--space-md);
  margin-top: var(--space-md);
  font-size: 0.75rem;
  line-height: 1.4;
  color: #8CA3A3;
}

.footer-bottom {
  border-top: 1px solid #1A3838;
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.75rem;
}

.footer-legal-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

/* Breadcrumbs */
.breadcrumb-nav {
  padding: var(--space-sm) 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.breadcrumb-nav ol {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.breadcrumb-nav li:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--border-color);
}

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: var(--space-lg) 0;
  border: var(--border-subtle);
  border-radius: var(--border-radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
  background: var(--surface-color);
}

th, td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: var(--muted-bg);
  color: var(--text-primary);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .layout-offset-column {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  aside.sidebar-offset {
    position: static;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-offset-media {
    margin-bottom: 0;
  }

  .footer-reference-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-contextual-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-color);
    border-bottom: 2px solid var(--accent-color);
    padding: var(--space-md);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  }

  .nav-contextual-list.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }

  .card-ref {
    grid-template-columns: 1fr;
  }

  .card-ref-badge-col {
    border-right: none;
    border-bottom: var(--border-subtle);
    padding: var(--space-sm);
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .footer-reference-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@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;
  }
}