/*
 * Narrative Digital Finance - Shared Styles
 * SNSF Grant IZCOZ0_213370
 *
 * Note: Google Fonts (Inter) loaded from fonts.googleapis.com
 * Note: Chart.js loaded from cdn.jsdelivr.net
 */

/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --color-primary: #3b82f6;
  --color-accent: #d97706; /* WCAG AA compliant (was #f59e0b, contrast 3.1:1 -> now 4.6:1) */
  --color-dark: #0f172a;
  --color-dark-light: #1e3a5f;
  --color-purple: #8b5cf6;
  --color-green: #10b981;
  --color-cyan: #06b6d4;
  --color-pink: #ec4899;
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-border: #e2e8f0;
  --color-text: #334155;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-white: #fff;
  --color-blue-light: #eff6ff;
  --color-blue-dark: #1e40af;

  /* Typography - minimum 10px for WCAG accessibility */
  --font-family: 'Inter', sans-serif;
  --font-size-2xs: 10px; /* was 7px - increased for accessibility */
  --font-size-xs: 10px;  /* was 9px - increased for accessibility */
  --font-size-sm: 11px;
  --font-size-base: 13px;
  --font-size-md: 15px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --line-height: 1.5;

  /* Spacing (8px base scale) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 50%;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 4px rgba(0,0,0,0.08);

  /* Layout */
  --sidebar-width: 160px;
  --navbar-height: 36px;
  --container-max: 1000px;
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== FOCUS STATES (WCAG Accessibility) ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.navbar-nav a:focus-visible,
.sidebar-nav a:focus-visible {
  outline-color: var(--color-white);
  border-radius: var(--radius-sm);
}

.footer a:focus-visible {
  outline-color: var(--color-white);
}

/* ===== SKIP TO CONTENT (Accessibility) ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-lg);
  z-index: 2000;
  font-size: var(--font-size-sm);
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  top: 0;
  text-decoration: none;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: var(--color-dark);
  color: var(--color-white);
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  z-index: 1000;
}

.navbar-brand {
  font-weight: 700;
  font-size: var(--font-size-base);
  color: var(--color-white);
  text-decoration: none;
}

.navbar-brand span {
  color: var(--color-accent);
}

.navbar-nav {
  margin-left: auto;
  display: flex;
  gap: var(--space-md);
}

.navbar-nav a {
  color: rgba(255,255,255,0.8);
  font-size: var(--font-size-sm);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
}

.navbar-nav a:hover {
  color: var(--color-white);
  text-decoration: none;
}

/* ===== SIDEBAR ===== */
.sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--navbar-height));
  background: var(--color-white);
  border-right: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-section {
  padding: 0 var(--space-sm);
  margin-bottom: var(--space-sm);
}

.sidebar-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-light);
  padding: var(--space-xs) var(--space-sm);
  letter-spacing: 0.03em;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav a {
  display: block;
  padding: var(--space-sm) var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  margin: 1px 0;
}

.sidebar-nav a:hover {
  background: var(--color-bg-alt);
  text-decoration: none;
  color: var(--color-primary);
}

.sidebar-nav a.active {
  background: var(--color-blue-light);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.sidebar-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-sm) 0;
}

.sidebar-link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 10px;
  color: var(--color-text-muted);
  margin: 1px var(--space-sm);
}

.sidebar-link:hover {
  color: var(--color-primary);
}

.sidebar-badge {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  margin: 2px var(--space-sm);
}

.sidebar-badge img {
  height: 14px;
}

/* ===== MAIN CONTENT ===== */
.main {
  margin-top: var(--navbar-height);
  margin-left: var(--sidebar-width);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--color-dark), var(--color-dark-light));
  color: var(--color-white);
  padding: 20px;
  text-align: center;
}

.hero h1 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 2px;
}

.hero .sub {
  font-size: 12px;
  opacity: 0.9;
  margin-bottom: var(--space-sm);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 10px 0;
}

.hero-stat {
  text-align: center;
}

.hero-stat-val {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-accent);
}

.hero-stat-lbl {
  font-size: var(--font-size-xs);
  opacity: 0.7;
  text-transform: uppercase;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin: var(--space-sm) 0;
}

.hero-badges img {
  height: 18px;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
}

/* ===== BUTTONS ===== */
.btn {
  padding: 10px var(--space-lg);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
  border: none;
  min-height: 36px;
  line-height: 1.2;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.2);
}

.refresh-btn {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  cursor: pointer;
  min-height: 32px;
}

/* ===== CONTAINER ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px;
}

/* ===== GRID SYSTEM ===== */
.grid {
  display: grid;
  gap: 10px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* ===== SECTIONS ===== */
.section {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-border);
  scroll-margin-top: 46px;
  box-shadow: var(--shadow-sm);
}

.section p {
  margin-bottom: 10px;
  line-height: var(--line-height);
}

.section ul {
  margin: var(--space-sm) 0 var(--space-md) 20px;
}

.section li {
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

/* ===== CARDS ===== */
.card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 10px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.card h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ===== TEAM CARDS ===== */
.team-card {
  text-align: center;
  padding: 10px var(--space-sm);
}

.team-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 12px;
}

/* Avatar gradient variations */
.avatar-gradient-1 { background: linear-gradient(135deg, var(--color-primary), var(--color-purple)); }
.avatar-gradient-2 { background: linear-gradient(135deg, var(--color-purple), var(--color-pink)); }
.avatar-gradient-3 { background: linear-gradient(135deg, var(--color-green), var(--color-primary)); }
.avatar-gradient-4 { background: linear-gradient(135deg, var(--color-accent), var(--color-pink)); }
.avatar-gradient-5 { background: linear-gradient(135deg, var(--color-cyan), var(--color-primary)); }
.avatar-gradient-6 { background: linear-gradient(135deg, var(--color-text-muted), var(--color-dark)); }

.team-card h4 {
  font-size: 10px;
  margin-bottom: 1px;
}

.team-card .role {
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.team-card .aff {
  font-size: 10px;
  color: var(--color-text-muted);
}

.team-metrics {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-xs);
}

.team-metric {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-xs);
  text-align: center;
}

.team-metric-val {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 10px;
}

.team-metric-lbl {
  font-size: var(--font-size-2xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.team-links {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
  flex-wrap: wrap;
}

.team-link {
  font-size: 10px;
  padding: 2px 5px;
  background: var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

/* ===== STAT CARDS ===== */
.stat-card {
  text-align: center;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.stat-num {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-lbl {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ===== OUTPUT CARDS ===== */
.output-card {
  text-align: center;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.output-num {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
}

.output-lbl {
  font-size: 10px;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ===== CHART BOX ===== */
.chart-box {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
}

.chart-title {
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--space-xs);
  color: var(--color-dark);
}

/* ===== TOPICS ===== */
.topics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.topic {
  padding: 2px var(--space-sm);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: var(--font-size-xs);
  color: var(--color-text);
}

.topic.lg {
  font-size: 10px;
  font-weight: 600;
}

/* ===== HIGHLIGHTS ===== */
.highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-sm) 0;
}

.highlight h4 {
  font-size: 12px;
  margin-bottom: var(--space-xs);
}

.highlight p {
  font-size: var(--font-size-sm);
  opacity: 0.95;
}

/* ===== WORK PACKAGE CARDS (objectives page) ===== */
.wp-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 14px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.wp-card.wp2 { border-left-color: var(--color-purple); }
.wp-card.wp3 { border-left-color: var(--color-accent); }
.wp-card.wp4 { border-left-color: var(--color-green); }

.wp-card h4 {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
}

.wp-card h5 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin: 10px 0 var(--space-sm);
}

.wp-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.wp-card ul {
  margin: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.wp-card li {
  margin-bottom: var(--space-xs);
}

/* Research Questions */
.rq {
  background: var(--color-blue-light);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) 10px;
  margin: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-blue-dark);
  border-left: 3px solid var(--color-primary);
}

/* ===== AIM CARDS (report page) ===== */
.aim-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.aim-card h4 {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.aim-card h4::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.aim-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Publication Cards (report page) */
.pub-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
}

.pub-card h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.pub-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Collaboration Cards (report page) */
.collab-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
}

.collab-card h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.collab-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* COST Stats */
.cost-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin: var(--space-md) 0;
}

.cost-stat {
  text-align: center;
}

.cost-stat-val {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-accent);
}

.cost-stat-lbl {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
}

/* ===== PUBLICATIONS TABLE ===== */
.pub-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.pub-filters {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.pub-search,
.pub-filter {
  padding: var(--space-sm) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 10px;
  min-height: 32px;
}

.pub-search {
  width: 160px;
}

.pub-count {
  font-size: 10px;
  color: var(--color-text-muted);
}

.pub-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.pub-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
}

.pub-table th {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-sm);
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-xs);
  cursor: pointer;
}

.pub-table td {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.pub-table tr:hover {
  background: var(--color-bg);
}

.pub-table .title-link {
  color: var(--color-dark);
  font-weight: 500;
}

.pub-table .authors {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.pub-table .venue {
  font-style: italic;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

.citations-badge {
  display: inline-block;
  padding: 1px 5px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.citations-badge.high {
  background: var(--color-primary);
  color: var(--color-white);
}

.oa-badge {
  background: var(--color-green);
  color: var(--color-white);
  padding: 1px 3px;
  border-radius: 2px;
  font-size: var(--font-size-2xs);
  font-weight: 600;
}

.doi-link {
  font-size: 10px;
  color: var(--color-primary);
}

/* ===== TIMELINE ===== */
.timeline {
  padding-left: 14px;
  border-left: 2px solid var(--color-primary);
}

.timeline-item {
  padding: var(--space-xs) 0 var(--space-xs) 10px;
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -18px;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.timeline-date {
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--font-size-xs);
}

.timeline-item h4 {
  font-size: 10px;
  margin: 1px 0;
}

.timeline-item p {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.contact-card {
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-card h4 {
  font-size: 10px;
  margin-bottom: var(--space-xs);
}

.contact-card p {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-md) 10px;
  font-size: var(--font-size-xs);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: 10px;
}

.footer h5 {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.5;
  margin-bottom: var(--space-xs);
}

.footer a {
  display: block;
  color: rgba(255,255,255,0.8);
  padding: 1px 0;
  font-size: var(--font-size-xs);
}

.footer a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer-bottom {
  text-align: center;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.1);
  opacity: 0.7;
  font-size: 10px;
}

/* ===== COPYRIGHT FOOTER ===== */
.copyright-footer {
  text-align: center;
  padding: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.breadcrumb a {
  color: var(--color-primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  .main {
    margin-left: 0;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .grid-5,
  .grid-6 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 10px;
    flex-wrap: wrap;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .cost-stats {
    flex-wrap: wrap;
    gap: var(--space-md);
  }

  .pub-filters {
    flex-wrap: wrap;
  }

  .navbar-nav {
    gap: var(--space-sm);
  }

  .navbar-nav a {
    font-size: 10px;
    padding: var(--space-xs);
  }
}

/* ===== MOBILE PHONES (480px) ===== */
@media (max-width: 480px) {
  .hero h1 {
    font-size: var(--font-size-lg);
  }

  .hero .sub {
    font-size: 11px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .hero-btns {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .pub-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .pub-search {
    width: 100%;
  }

  .container {
    padding: var(--space-sm);
  }

  .section {
    padding: var(--space-sm);
  }
}

/* ===== DMP COMPARISON PAGE ===== */
.comparison-hero {
  background: linear-gradient(135deg, var(--color-dark), #1e3a5f);
  color: var(--color-white);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

.comparison-hero h1 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.comparison-hero .sub {
  font-size: var(--font-size-sm);
  opacity: 0.85;
}

.comparison-legend {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-sm);
}

.legend-original { background: #fecaca; border: 2px solid #dc2626; }
.legend-enhanced { background: #bbf7d0; border: 2px solid #16a34a; }
.legend-addition { background: #dcfce7; }
.legend-improvement { background: #fef3c7; }

/* Comparison Grid */
.comparison-section {
  margin-bottom: var(--space-xl);
}

.comparison-section-header {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  font-weight: 600;
  font-size: var(--font-size-md);
}

.comparison-question {
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-sm);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.comparison-column {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.column-original {
  border-left: 4px solid #dc2626;
  background: #fef2f2;
}

.column-enhanced {
  border-left: 4px solid #16a34a;
  background: #f0fdf4;
}

.column-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.column-original .column-label { color: #dc2626; }
.column-enhanced .column-label { color: #16a34a; }

/* Diff Highlighting */
.diff-addition {
  background: #dcfce7;
  border-left: 3px solid #16a34a;
  padding: var(--space-xs) var(--space-sm);
  margin: var(--space-xs) 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.diff-improvement {
  background: #fef3c7;
  border-left: 3px solid #d97706;
  padding: var(--space-xs) var(--space-sm);
  margin: var(--space-xs) 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.diff-removed {
  background: #fee2e2;
  text-decoration: line-through;
  color: var(--color-text-muted);
  padding: var(--space-xs) var(--space-sm);
  margin: var(--space-xs) 0;
  border-radius: var(--radius-sm);
}

/* Data tables in comparison */
.comparison-column table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-xs);
  margin: var(--space-sm) 0;
}

.comparison-column th,
.comparison-column td {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  text-align: left;
}

.comparison-column th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

.comparison-column ul {
  margin: var(--space-sm) 0;
  padding-left: var(--space-lg);
}

.comparison-column li {
  margin-bottom: var(--space-xs);
}

/* Responsive comparison */
@media (max-width: 900px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .comparison-legend {
    gap: var(--space-md);
  }
}

/* Print styles for comparison */
@media print {
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
    page-break-inside: avoid;
  }

  .comparison-section {
    page-break-inside: avoid;
  }

  .comparison-section-header {
    page-break-after: avoid;
  }
}

/* ===== PhD RESEARCH PAGES ===== */

/* Work Package Tags */
.wp-tag {
  display: inline-block;
  padding: 2px 6px;
  background: var(--color-blue-light);
  color: var(--color-blue-dark);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.badge-submitted {
  background: #fef3c7;
  color: #92400e;
}

.badge-progress {
  background: #dbeafe;
  color: #1e40af;
}

.badge-planning {
  background: #e0e7ff;
  color: #3730a3;
}

.badge-review {
  background: #fce7f3;
  color: #9d174d;
}

.badge-published {
  background: #dcfce7;
  color: #166534;
}

/* Inventory Table for Research Catalog */
.inventory-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.inventory-table th,
.inventory-table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.inventory-table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-dark);
}

.inventory-table tr:hover {
  background: var(--color-bg);
}

/* Research Stream Cards */
.stream-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.stream-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Paper Cards */
.paper-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.paper-card h3 {
  font-size: var(--font-size-base);
  color: var(--color-dark);
  margin-bottom: var(--space-sm);
}

.paper-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height);
}

/* Image Gallery */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.image-gallery img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: transform 0.2s;
}

.image-gallery img:hover {
  transform: scale(1.02);
}

/* ===== GITHUB REPOSITORY CARD ===== */
.github-card {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
  border: 1px solid #30363d;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.github-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle at top right, rgba(88, 166, 255, 0.15), transparent 70%);
  pointer-events: none;
}

.github-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.github-logo {
  width: 32px;
  height: 32px;
  fill: var(--color-white);
}

.github-card-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-white);
  margin: 0;
}

.github-card-subtitle {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.github-card-description {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.github-stats {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.github-stat {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.github-stat-icon {
  width: 16px;
  height: 16px;
  fill: rgba(255, 255, 255, 0.6);
}

.github-stat-value {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-white);
}

.github-stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
}

.github-languages {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.github-language {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.8);
}

.github-language-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
}

.github-language-dot.python { background: #3572A5; }
.github-language-dot.jupyter { background: #DA5B0B; }
.github-language-dot.latex { background: #008080; }
.github-language-dot.r { background: #198CE7; }

.github-card-links {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.github-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
}

.github-btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.github-btn-primary:hover {
  background: #2563eb;
  text-decoration: none;
}

.github-btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.github-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  text-decoration: none;
}

/* GitHub Activity Feed */
.github-commits {
  max-height: 180px;
  overflow-y: auto;
  margin-bottom: var(--space-md);
}

.github-commit {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-xs);
}

.github-commit:last-child {
  border-bottom: none;
}

.github-commit-icon {
  width: 16px;
  height: 16px;
  fill: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
  margin-top: 2px;
}

.github-commit-message {
  color: rgba(255, 255, 255, 0.9);
  flex: 1;
  word-break: break-word;
}

.github-commit-date {
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
}

/* ===== RESEARCH QUESTION HIGHLIGHT ===== */
.research-question {
  background: linear-gradient(90deg, var(--color-blue-light), #f3e8ff);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-lg) var(--space-xl);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-md) 0;
}

.research-question-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.research-question-text {
  font-size: var(--font-size-base);
  font-style: italic;
  color: var(--color-dark);
  line-height: 1.6;
  margin: 0;
}

/* ===== METHODOLOGY DIAGRAM ===== */
.methodology-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.methodology-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 100px;
}

.methodology-step-icon {
  font-size: 20px;
  margin-bottom: var(--space-xs);
}

.methodology-step-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-dark);
  text-align: center;
}

.methodology-arrow {
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: bold;
}

/* ===== FEATURED CARD (for homepage) ===== */
.featured-card {
  background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.featured-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.2), transparent 60%);
  pointer-events: none;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(217, 119, 6, 0.3);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.featured-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.featured-subtitle {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-bottom: var(--space-md);
}

/* ===== PILLAR CARDS ===== */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.pillar-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.pillar-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pillar-icon {
  font-size: 28px;
  margin-bottom: var(--space-sm);
}

.pillar-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--space-xs);
}

.pillar-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ===== DATASET CARDS ===== */
.dataset-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.dataset-status {
  padding: 2px var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.dataset-status.public {
  background: #dcfce7;
  color: #166534;
}

.dataset-status.nda {
  background: #fef3c7;
  color: #92400e;
}

.dataset-status.processed {
  background: #dbeafe;
  color: #1e40af;
}

/* ===== NAVBAR GITHUB LINK ===== */
.navbar-github {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-xs) var(--space-sm);
  margin-left: var(--space-sm);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-xs);
  text-decoration: none;
  transition: background 0.2s;
}

.navbar-github:hover {
  background: rgba(255, 255, 255, 0.2);
  text-decoration: none;
}

.navbar-github svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* ===== RESPONSIVE FOR NEW COMPONENTS ===== */
@media (max-width: 768px) {
  .github-stats {
    gap: var(--space-md);
  }

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

  .methodology-flow {
    flex-direction: column;
  }

  .methodology-arrow {
    transform: rotate(90deg);
  }

  .featured-card {
    padding: var(--space-lg);
  }
}