/* ==========================================================================
   POLITICAL FUTURES - CORE STYLESHEET
   Design Language: Modern Academic Institution (Oxford Martin Inspired)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300..700;1,6..72,300..700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Brand Palette */
  --pf-navy-950: #07111e;
  --pf-navy-900: #0b1a2f;
  --pf-navy-800: #122844;
  --pf-navy-700: #1a385f;
  --pf-terracotta: #c0392b;
  --pf-terracotta-hover: #a5281b;
  --pf-gold: #c89b3c;
  --pf-gold-light: #f7eedb;
  
  /* Thematic Accents */
  --theme-hope: #d97706;
  --theme-citizenship: #2563eb;
  --theme-development: #059669;
  --theme-global-order: #7c3aed;
  --theme-methodologies: #0d9488;

  /* Neutrals & Surfaces */
  --pf-bg: #faf9f6;             /* Warm academic off-white */
  --pf-surface: #ffffff;
  --pf-surface-muted: #f3f1ec;
  --pf-border: #e4e0d7;
  --pf-border-light: #eeebe5;
  --pf-text-primary: #181d25;
  --pf-text-secondary: #4b5565;
  --pf-text-muted: #717d90;
  --pf-text-inverse: #ffffff;

  /* Typography */
  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout & Spacing */
  --container-max: 1280px;
  --container-pad: clamp(1.25rem, 4vw, 2.5rem);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(11, 26, 47, 0.05);
  --shadow-md: 0 4px 12px rgba(11, 26, 47, 0.08);
  --shadow-lg: 0 12px 28px rgba(11, 26, 47, 0.12);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--pf-bg);
  color: var(--pf-text-primary);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.25;
  color: var(--pf-navy-900);
}

p {
  margin-bottom: 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

.pf-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.pf-container-narrow {
  max-width: 860px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.pf-header {
  background: var(--pf-surface);
  border-bottom: 1px solid var(--pf-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow var(--transition-fast);
}

.pf-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.pf-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.pf-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.pf-brand-kicker {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pf-terracotta);
  font-weight: 700;
  line-height: 1;
}

.pf-brand-title {
  font-family: var(--font-serif);
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  color: var(--pf-navy-950);
  font-weight: 600;
}

.pf-nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.pf-nav-desktop a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--pf-text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.pf-nav-desktop a:hover,
.pf-nav-desktop a.active {
  color: var(--pf-navy-950);
}

.pf-nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--pf-terracotta);
  transition: width var(--transition-fast);
}

.pf-nav-desktop a:hover::after,
.pf-nav-desktop a.active::after {
  width: 100%;
}

.pf-nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-sm);
  background: var(--pf-navy-900);
  color: #fff !important;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--pf-navy-900);
  transition: all var(--transition-fast);
}

.pf-nav-btn:hover {
  background: var(--pf-terracotta);
  border-color: var(--pf-terracotta);
}

/* Mobile Toggle */
.pf-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--pf-navy-900);
}

@media (max-width: 991px) {
  .pf-nav-desktop {
    display: none;
  }
  .pf-menu-toggle {
    display: block;
  }
}

.pf-mobile-drawer {
  display: none;
  background: var(--pf-surface);
  border-bottom: 1px solid var(--pf-border);
  padding: 1.5rem var(--container-pad);
}

.pf-mobile-drawer.is-open {
  display: block;
}

.pf-mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pf-mobile-nav a {
  font-size: 1.1rem;
  color: var(--pf-navy-900);
  font-weight: 500;
  padding: 0.25rem 0;
}

/* ==========================================================================
   Homepage: Oxford Martin Inspired Hero
   ========================================================================== */
.pf-hero {
  background: linear-gradient(135deg, var(--pf-navy-950) 0%, var(--pf-navy-900) 100%);
  color: var(--pf-text-inverse);
  padding: clamp(3rem, 7vw, 6rem) 0;
  position: relative;
  overflow: hidden;
}

.pf-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at right top, rgba(200, 155, 60, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.pf-hero-split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.pf-hero-left {
  position: relative;
  z-index: 2;
}

.pf-hero-kicker {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: var(--pf-gold);
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.pf-hero-title {
  font-size: clamp(2.75rem, 5.5vw, 4.25rem);
  line-height: 1.05;
  color: #ffffff;
  margin-bottom: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.pf-hero-desc {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.55;
  color: #cbd5e1;
  margin-bottom: 2.25rem;
  max-width: 540px;
  font-weight: 300;
}

.pf-hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.pf-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.pf-btn-primary {
  background-color: var(--pf-terracotta);
  color: #ffffff;
  border: 1px solid var(--pf-terracotta);
}

.pf-btn-primary:hover {
  background-color: var(--pf-terracotta-hover);
  border-color: var(--pf-terracotta-hover);
  transform: translateY(-1px);
}

.pf-btn-secondary {
  background-color: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.pf-btn-secondary:hover {
  border-color: #ffffff;
  background-color: rgba(255, 255, 255, 0.05);
}

/* Right Side: Thematic Panel List */
.pf-hero-right {
  position: relative;
  z-index: 2;
}

.pf-theme-stack-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--pf-gold);
  margin-bottom: 1rem;
  font-weight: 700;
}

.pf-theme-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.pf-theme-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.4rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 4px solid var(--theme-accent, var(--pf-gold));
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.pf-theme-item:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateX(6px);
}

.pf-theme-item-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: #ffffff;
  font-weight: 400;
}

.pf-theme-item-arrow {
  color: var(--pf-gold);
  font-size: 1.1rem;
  transition: transform var(--transition-fast);
}

.pf-theme-item:hover .pf-theme-item-arrow {
  transform: translateX(4px);
}

.pf-subtheme-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.pf-subtheme-pill:hover {
  background: var(--pf-gold);
  border-color: var(--pf-gold);
  color: var(--pf-navy-950);
}

@media (max-width: 900px) {
  .pf-hero-split {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Side-by-Side Responsive Grid System
   Enforces client requirement: "To be placed side by side, not one above the other"
   Collapses cleanly on small mobile viewports
   ========================================================================== */
.pf-side-by-side-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.pf-side-by-side-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.pf-side-by-side-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .pf-side-by-side-3,
  .pf-side-by-side-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .pf-side-by-side-2,
  .pf-side-by-side-3,
  .pf-side-by-side-4 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Cards: Projects, Outputs, & People
   ========================================================================== */
.pf-card {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  position: relative;
}

.pf-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pf-card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--pf-surface-muted);
  color: var(--pf-navy-800);
  margin-bottom: 0.85rem;
  align-self: flex-start;
}

.pf-card-title {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.pf-card-title a {
  color: var(--pf-navy-950);
}

.pf-card-title a:hover {
  color: var(--pf-terracotta);
}

.pf-card-desc {
  font-size: 0.92rem;
  color: var(--pf-text-secondary);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1.25rem;
}

.pf-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--pf-border-light);
  padding-top: 1rem;
  font-size: 0.82rem;
  color: var(--pf-text-muted);
}

.pf-card-link {
  font-weight: 600;
  color: var(--pf-terracotta);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Output Item (Compact Horizontal or Card) */
.pf-output-item {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-left: 3px solid var(--pf-navy-800);
  border-radius: var(--radius-sm);
  padding: 1.15rem 1.35rem;
  transition: all var(--transition-fast);
}

.pf-output-item:hover {
  box-shadow: var(--shadow-sm);
  border-left-color: var(--pf-terracotta);
  transform: translateX(2px);
}

.pf-output-meta {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pf-text-muted);
  font-weight: 600;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pf-output-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--pf-navy-950);
  margin-bottom: 0.35rem;
}

.pf-output-authors {
  font-size: 0.85rem;
  color: var(--pf-text-secondary);
  font-style: italic;
}

/* People Grid Card */
.pf-person-card {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.pf-person-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.pf-person-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  border: 3px solid var(--pf-surface-muted);
  background: var(--pf-surface-muted);
}

.pf-person-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}

.pf-person-role {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pf-terracotta);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.pf-person-inst {
  font-size: 0.82rem;
  color: var(--pf-text-muted);
}

/* ==========================================================================
   Fieldwork Snapshot Viewer (City Switcher)
   ========================================================================== */
.pf-snapshots-module {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  margin: 2.5rem 0;
}

.pf-city-tabs {
  display: flex;
  gap: 0.75rem;
  border-bottom: 2px solid var(--pf-border);
  padding-bottom: 0.75rem;
  margin-bottom: 1.75rem;
}

.pf-city-tab-btn {
  background: none;
  border: none;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--pf-text-secondary);
  transition: all var(--transition-fast);
}

.pf-city-tab-btn.is-active {
  background: var(--pf-navy-900);
  color: #ffffff;
}

.pf-city-pane {
  display: none;
}

.pf-city-pane.is-active {
  display: block;
}

.pf-vignette-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.pf-vignette-card {
  background: var(--pf-surface-muted);
  border-left: 3px solid var(--pf-gold);
  padding: 1.15rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--pf-navy-900);
}

/* ==========================================================================
   Podcast Player Component (India Tomorrow Series)
   ========================================================================== */
.pf-podcast-box {
  background: var(--pf-navy-900);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  margin: 2.5rem 0;
}

.pf-podcast-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.pf-podcast-title {
  color: #fff;
  font-size: 1.75rem;
}

.pf-podcast-episodes {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pf-episode-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.pf-episode-row:hover {
  background: rgba(255, 255, 255, 0.1);
}

.pf-episode-num {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pf-gold);
  font-weight: 700;
  min-width: 90px;
}

.pf-episode-name {
  flex: 1;
  font-size: 0.98rem;
  color: #ffffff;
  padding: 0 1rem;
}

.pf-episode-play {
  background: var(--pf-terracotta);
  color: #fff;
  border: none;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

/* ==========================================================================
   Filter Bar for Resources Archive
   ========================================================================== */
.pf-filter-bar {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.pf-filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pf-filter-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--pf-text-muted);
}

.pf-filter-select {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--pf-border);
  background: var(--pf-bg);
  font-size: 0.88rem;
  font-family: var(--font-sans);
}

/* ==========================================================================
   Section Layouts & Dividers
   ========================================================================== */
.pf-section {
  padding: clamp(3rem, 6vw, 5rem) 0;
}

.pf-section-alt {
  background-color: var(--pf-surface-muted);
}

.pf-section-header {
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.pf-section-kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pf-terracotta);
  margin-bottom: 0.5rem;
  display: inline-block;
}

.pf-section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
}

.pf-section-subtitle {
  font-size: 1.15rem;
  color: var(--pf-text-secondary);
  max-width: 720px;
  margin-top: 0.75rem;
}

.pf-grant-callout {
  background: #fdfbf7;
  border-left: 4px solid var(--pf-gold);
  padding: 1.25rem 1.75rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.75rem 0;
  font-size: 0.95rem;
  color: var(--pf-text-secondary);
}

/* ==========================================================================
   Footer & Institutional Credits
   ========================================================================== */
.pf-footer {
  background: var(--pf-navy-950);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  border-top: 3px solid var(--pf-terracotta);
  margin-top: auto;
}

.pf-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.pf-footer-title {
  color: #ffffff;
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pf-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.pf-footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
}

.pf-footer-links a:hover {
  color: #ffffff;
}

.pf-footer-funders {
  font-size: 0.85rem;
  line-height: 1.6;
}

.pf-funder-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.pf-funder-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e2e8f0;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.pf-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .pf-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 580px) {
  .pf-footer-grid {
    grid-template-columns: 1fr;
  }
  .pf-footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}