:root {
  /* Editorial Executive Palette — Warm Alabaster, Deep Ink, Navy Slate */
  --bg-canvas: #FAF9F5;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F2EFE9;
  --bg-elevated: #EAE6DF;

  --ink-primary: #141619;
  --ink-secondary: #3E434C;
  --ink-tertiary: #6C727F;
  --ink-muted: #8E94A0;

  --accent-primary: #1B365D;
  --accent-hover: #122440;
  --accent-soft: #EBF0F7;
  --accent-signal: #2A5C43;
  --accent-signal-soft: #E9F2ED;

  --border-hairline: rgba(20, 22, 25, 0.09);
  --border-strong: rgba(20, 22, 25, 0.18);

  --shadow-subtle: 0 2px 8px rgba(20, 22, 25, 0.04), 0 1px 2px rgba(20, 22, 25, 0.03);
  --shadow-elevated: 0 16px 40px rgba(20, 22, 25, 0.08), 0 2px 6px rgba(20, 22, 25, 0.04);
  --shadow-drawer: -12px 0 48px rgba(20, 22, 25, 0.16);

  /* Typography */
  --font-serif: 'Newsreader', 'Instrument Serif', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', 'IBM Plex Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Layout */
  --max-width: 1320px;
  --header-height: 68px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition-fast: 160ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-smooth: 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  --bg-canvas: #111315;
  --bg-surface: #181B1F;
  --bg-subtle: #1E2227;
  --bg-elevated: #262B31;

  --ink-primary: #F3F2EE;
  --ink-secondary: #C2C5CC;
  --ink-tertiary: #8D939E;
  --ink-muted: #646A75;

  --accent-primary: #7BA4DB;
  --accent-hover: #9BBCE8;
  --accent-soft: rgba(123, 164, 219, 0.12);
  --accent-signal: #68B68E;
  --accent-signal-soft: rgba(104, 182, 142, 0.12);

  --border-hairline: rgba(243, 242, 238, 0.09);
  --border-strong: rgba(243, 242, 238, 0.2);

  --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-elevated: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-drawer: -12px 0 48px rgba(0, 0, 0, 0.65);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--ink-primary);
  line-height: 1.6;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

/* Top Navigation Bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  background-color: color-mix(in srgb, var(--bg-canvas) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-identity {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink-primary);
}

.brand-domain {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-tertiary);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-secondary);
  padding: 0.35rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--ink-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background-color: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.lang-toggle,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--ink-secondary);
  transition: all var(--transition-fast);
}

.lang-toggle:hover,
.theme-toggle:hover {
  border-color: var(--border-strong);
  color: var(--ink-primary);
  background-color: var(--bg-subtle);
}

.lang-toggle span.active-lang {
  color: var(--accent-primary);
  font-weight: 700;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.95rem;
  border-radius: var(--radius-sm);
  background-color: var(--ink-primary);
  color: var(--bg-canvas);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--ink-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

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

/* Main Container */
.main-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

/* Hero / Executive Intro Section */
.hero-section {
  padding: 3.75rem 0 3rem;
  border-bottom: 1px solid var(--border-hairline);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 3.5rem;
  align-items: end;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  margin-bottom: 0.85rem;
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 4vw, 3.35rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--ink-primary);
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink-secondary);
  max-width: 64ch;
}

.hero-meta-bar {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--ink-tertiary);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta-item a {
  color: var(--ink-primary);
  border-bottom: 1px solid var(--border-strong);
  transition: border-color var(--transition-fast);
}

.hero-meta-item a:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Key Impact Metrics Strip */
.impact-ledger {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-subtle);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.impact-item {
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-hairline);
}

.impact-item:nth-last-child(-n+2) {
  border-bottom: none;
  padding-bottom: 0;
}

.impact-value {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--ink-primary);
  letter-spacing: -0.02em;
}

.impact-label {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--ink-tertiary);
}

/* View Mode Switcher (Split View vs Full Resume vs Full Data Column) */
.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.view-tabs {
  display: inline-flex;
  background-color: var(--bg-subtle);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-hairline);
}

.view-tab {
  padding: 0.42rem 0.95rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-secondary);
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.view-tab.active {
  background-color: var(--bg-surface);
  color: var(--ink-primary);
  box-shadow: var(--shadow-subtle);
  font-weight: 600;
}

.toolbar-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-tertiary);
}

/* Editorial Two-Column Workspace: Resume Left + Data Story Column Right */
.editorial-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.95fr);
  gap: 3.25rem;
  align-items: start;
}

.editorial-workspace.mode-resume {
  grid-template-columns: 1fr;
}

.editorial-workspace.mode-resume .projects-column {
  display: none;
}

.editorial-workspace.mode-projects {
  grid-template-columns: 1fr;
}

.editorial-workspace.mode-projects .resume-column {
  display: none;
}

.editorial-workspace.mode-projects .projects-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

/* Section Headers */
.column-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  margin-bottom: 1.75rem;
  border-bottom: 2px solid var(--ink-primary);
}

.column-title-group {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
}

.column-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.column-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.column-subtitle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-tertiary);
}

/* Resume Blocks */
.resume-section-block {
  margin-bottom: 2.75rem;
}

.resume-block-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-tertiary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.resume-block-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border-hairline);
}

.experience-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.65rem;
  margin-bottom: 1.15rem;
  box-shadow: var(--shadow-subtle);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.experience-card:hover {
  border-color: var(--border-strong);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.exp-org {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink-primary);
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.exp-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background-color: var(--accent-soft);
  color: var(--accent-primary);
}

.exp-role {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--accent-primary);
  margin-top: 0.15rem;
}

.exp-meta {
  text-align: right;
  flex-shrink: 0;
}

.exp-period {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.exp-location {
  font-size: 0.75rem;
  color: var(--ink-tertiary);
  margin-top: 0.15rem;
}

.exp-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.exp-bullets li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-secondary);
}

.exp-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--ink-muted);
  font-weight: 600;
}

.exp-bullets strong {
  color: var(--ink-primary);
  font-weight: 600;
}

/* Education & Skills Grid */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.95rem;
}

.edu-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.edu-school {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.edu-degree {
  font-size: 0.875rem;
  color: var(--ink-secondary);
  margin-top: 0.25rem;
}

.skills-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.skill-group {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
}

.skill-group-title {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-tertiary);
  margin-bottom: 0.65rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background-color: var(--bg-subtle);
  color: var(--ink-primary);
  border: 1px solid var(--border-hairline);
}

/* Right Column: Dedicated Data Analysis & Projects Column */
.projects-column {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 1.65rem;
  box-shadow: var(--shadow-subtle);
}

.projects-column .column-header {
  margin-bottom: 1rem;
}

.column-intro {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--ink-secondary);
  margin-bottom: 1.15rem;
}

/* Filter Pills & Search inside the Projects Column */
.column-controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-hairline);
}

.search-input-wrap {
  position: relative;
}

.column-search {
  width: 100%;
  padding: 0.55rem 0.85rem 0.55rem 2.1rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  background-color: var(--bg-canvas);
  color: var(--ink-primary);
  transition: border-color var(--transition-fast);
}

.column-search:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.search-icon {
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-muted);
  font-size: 0.82rem;
  pointer-events: none;
}

.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.cat-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.28rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  color: var(--ink-secondary);
  transition: all var(--transition-fast);
}

.cat-pill:hover {
  border-color: var(--border-strong);
  color: var(--ink-primary);
}

.cat-pill.active {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  border-color: var(--accent-primary);
}

/* Scrollable Archive Feed inside the Column */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-height: 760px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.editorial-workspace.mode-projects .projects-list {
  max-height: none;
  overflow-y: visible;
}

.projects-list::-webkit-scrollbar {
  width: 5px;
}

.projects-list::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

.project-item-card {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 0.95rem;
  padding: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.project-item-card:hover {
  border-color: var(--accent-primary);
  background-color: var(--bg-surface);
  transform: translateY(-1px);
  box-shadow: var(--shadow-subtle);
}

.project-thumb-wrap {
  width: 76px;
  height: 76px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-hairline);
  flex-shrink: 0;
}

.project-thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-tertiary);
  margin-bottom: 0.25rem;
}

.project-card-tag {
  color: var(--accent-primary);
  font-weight: 600;
}

.project-card-title {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink-primary);
  margin-bottom: 0.35rem;
}

.project-card-summary {
  font-size: 0.79rem;
  line-height: 1.48;
  color: var(--ink-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card-footer {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-tertiary);
}

.read-trigger {
  color: var(--accent-primary);
  font-weight: 600;
}

/* Slide-Over Editorial Article Reader Drawer */
.reader-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(14, 16, 19, 0.52);
  backdrop-filter: blur(3px);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.reader-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.reader-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(860px, 94vw);
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-strong);
  box-shadow: var(--shadow-drawer);
  z-index: 100;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.reader-drawer.open {
  transform: translateX(0);
}

.reader-topbar {
  padding: 1rem 1.75rem;
  border-bottom: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-canvas);
}

.reader-Topmeta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-tertiary);
}

.reader-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-close-reader {
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
}

.btn-close-reader:hover {
  background-color: var(--bg-subtle);
}

.reader-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 2.5rem 3rem 4rem;
}

.reader-article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-hairline);
}

.reader-category-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent-primary);
  margin-bottom: 0.6rem;
  display: block;
}

.reader-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  line-height: 1.2;
  color: var(--ink-primary);
  margin-bottom: 0.9rem;
}

.reader-kr-summary-box {
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--accent-primary);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 1.75rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink-secondary);
}

.reader-kr-summary-box strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: 0.3rem;
}

.reader-body {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--ink-secondary);
}

.reader-body p {
  margin-bottom: 1.25rem;
}

.reader-body h1,
.reader-body h2,
.reader-body h3,
.reader-body h4 {
  font-family: var(--font-serif);
  color: var(--ink-primary);
  margin: 2rem 0 0.85rem;
  line-height: 1.3;
}

.reader-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-hairline);
  margin: 1.25rem auto;
  display: block;
  box-shadow: var(--shadow-subtle);
  background-color: #FFFFFF;
  padding: 0.35rem;
}

.reader-body ul,
.reader-body ol {
  margin: 0 0 1.25rem 1.5rem;
}

.reader-body li {
  margin-bottom: 0.45rem;
}

/* Daily Intelligence Briefings Hub (Section 03) */
.editorial-workspace.mode-briefings {
  display: none;
}

.briefings-hub-section {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid var(--border-strong);
}

.briefings-hub-section.only-briefings-mode {
  margin-top: 0;
  padding-top: 0.5rem;
  border-top: none;
}

.briefings-hub-section.hidden-in-mode {
  display: none;
}

.briefings-header {
  flex-wrap: wrap;
  gap: 0.75rem;
}

.live-pulse-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background-color: var(--accent-signal-soft);
  color: var(--accent-signal);
  border: 1px solid color-mix(in srgb, var(--accent-signal) 28%, transparent);
  margin-left: 0.4rem;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-signal);
  display: inline-block;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-signal) 25%, transparent);
}

.briefings-intro {
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--ink-secondary);
  max-width: 82ch;
  margin-bottom: 1.75rem;
}

/* 3 Stream Pillar Cards (Spotlight of the 3 Daily Automation Streams) */
.stream-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.25rem;
}

.stream-pillar-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-top: 3px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.stream-pillar-card[data-stream="market-report"] {
  border-top-color: #1B365D;
}

.stream-pillar-card[data-stream="frontier-tech"] {
  border-top-color: #0D652D;
}

.stream-pillar-card[data-stream="buffett-alpha"] {
  border-top-color: #B06000;
}

.stream-pillar-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.pillar-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.pillar-stream-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background-color: var(--accent-soft);
  color: var(--accent-primary);
}

.stream-pillar-card[data-stream="frontier-tech"] .pillar-stream-tag {
  background-color: var(--accent-signal-soft);
  color: var(--accent-signal);
}

.stream-pillar-card[data-stream="buffett-alpha"] .pillar-stream-tag {
  background-color: rgba(176, 96, 0, 0.12);
  color: #B06000;
}

[data-theme="dark"] .stream-pillar-card[data-stream="buffett-alpha"] .pillar-stream-tag {
  color: #F5A623;
}

.pillar-count-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-tertiary);
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink-primary);
  margin-bottom: 0.45rem;
}

.pillar-desc {
  font-size: 0.81rem;
  line-height: 1.52;
  color: var(--ink-secondary);
  margin-bottom: 1rem;
}

.pillar-latest-box {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.95rem;
  margin-bottom: 1rem;
}

.pillar-latest-label {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  color: var(--ink-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
  display: flex;
  justify-content: space-between;
}

.pillar-latest-headline {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--ink-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pillar-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-hairline);
}

.btn-pillar-latest {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent-primary);
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  background-color: var(--accent-soft);
  transition: opacity var(--transition-fast);
}

.btn-pillar-latest:hover {
  opacity: 0.85;
}

.btn-pillar-filter {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-tertiary);
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
}

.btn-pillar-filter:hover {
  color: var(--ink-primary);
  background-color: var(--bg-subtle);
}

/* Briefings Filter Bar & Grid */
.briefings-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
}

.briefing-search-wrap {
  min-width: 300px;
  flex: 0 1 380px;
}

.briefings-archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.15rem;
}

.briefing-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.35rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-subtle);
}

.briefing-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-elevated);
}

.briefing-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.briefing-stream-pill {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  font-weight: 600;
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
  background-color: var(--accent-soft);
  color: var(--accent-primary);
}

.briefing-stream-pill[data-stream="frontier-tech"] {
  background-color: var(--accent-signal-soft);
  color: var(--accent-signal);
}

.briefing-stream-pill[data-stream="buffett-alpha"] {
  background-color: rgba(176, 96, 0, 0.12);
  color: #B06000;
}

[data-theme="dark"] .briefing-stream-pill[data-stream="buffett-alpha"] {
  color: #F5A623;
}

.briefing-date-mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.briefing-card-title {
  font-family: var(--font-serif);
  font-size: 1.06rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-primary);
  margin-bottom: 0.45rem;
}

.briefing-card-summary {
  font-size: 0.81rem;
  line-height: 1.55;
  color: var(--ink-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.9rem;
}

.briefing-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border-hairline);
}

.ticker-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.ticker-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  padding: 0.12rem 0.42rem;
  border-radius: 3px;
  background-color: var(--bg-subtle);
  color: var(--ink-secondary);
  border: 1px solid var(--border-hairline);
}

/* Reader Drawer Briefing Mode (Full-Width Embedded Report View) */
.reader-drawer.briefing-mode {
  width: min(1140px, 96vw);
}

.reader-drawer.briefing-mode .reader-scroll {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.reader-drawer.briefing-mode .reader-article-header,
.reader-drawer.briefing-mode .reader-kr-summary-box {
  display: none;
}

.reader-drawer.briefing-mode .reader-body {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.briefing-iframe {
  width: 100%;
  height: 100%;
  flex: 1;
  border: none;
  background-color: #FFFFFF;
}

.btn-external-report {
  background-color: var(--accent-soft);
  color: var(--accent-primary);
  border-color: color-mix(in srgb, var(--accent-primary) 30%, transparent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-hairline);
  padding: 2.5rem 2rem;
  background-color: var(--bg-subtle);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--ink-tertiary);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

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

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid,
  .stream-pillars-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .editorial-workspace {
    grid-template-columns: 1fr;
  }

  .projects-column {
    position: static;
  }

  .projects-list {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 1rem;
  }

  .nav-links {
    display: none;
  }

  .main-container {
    padding: 0 1rem 3.5rem;
  }

  .impact-ledger,
  .skills-matrix,
  .briefings-archive-grid {
    grid-template-columns: 1fr;
  }

  .briefing-search-wrap {
    min-width: 100%;
  }

  .impact-item:nth-last-child(2) {
    border-bottom: 1px solid var(--border-hairline);
    padding-bottom: 0.75rem;
  }

  .exp-header,
  .edu-card {
    flex-direction: column;
  }

  .exp-meta {
    text-align: left;
  }

  .reader-scroll {
    padding: 1.5rem 1.25rem 3rem;
  }
}

@media print {
  .site-header,
  .workspace-toolbar,
  .projects-column,
  .briefings-hub-section,
  .site-footer,
  .reader-backdrop,
  .reader-drawer {
    display: none !important;
  }

  .editorial-workspace {
    display: block !important;
  }

  body {
    background: #FFFFFF;
    color: #000000;
  }
}