/* ═══════════════════════════════════════════════════════════════════
   CPG STYLES — Academic & Conferences Pages
   Color scheme: Blue dominant + Blue-White-Red blend accents
   Layout: Side-by-side split to eliminate vertical waste
   ═══════════════════════════════════════════════════════════════════ */

:root {
  /* ── Blue-dominant palette ── */
  --cpg-blue:        #1565c0;                        /* Primary deep blue */
  --cpg-blue-light:  #3b82f6;                        /* Lighter electric blue */
  --cpg-blend:       color-mix(in srgb, #1565c0 55%, #dc2626 45%);  /* Blue+Red blend → rich violet-rose */
  --cpg-blend-soft:  color-mix(in srgb, #3b82f6 70%, #f43f5e 30%);  /* Softer lavender-rose */

  /* ── Applied vars ── */
  --cpg-primary:     var(--cpg-blue);
  --cpg-secondary:   var(--cpg-blend);       /* blend for secondary labels/badges */
  --cpg-accent:      var(--cpg-blend-soft);  /* accent for links/pills */
  --cpg-teal:        #0d9488;

  /* ── Surface ── */
  --cpg-text-main:   var(--text,  #0f172a);
  --cpg-text-muted:  var(--muted, #64748b);
  --cpg-card-bg:     var(--bg,    #ffffff);
  --cpg-card-border: color-mix(in srgb, var(--cpg-blue) 12%, transparent);
  --cpg-shadow:      0 6px 24px rgba(21,101,192,.06);
  --cpg-shadow-md:   0 16px 40px rgba(21,101,192,.10);
}

/* ─── Wrapper ─── */
.cpg-wrap {
  max-width: var(--max, 1200px);
  margin: 0 auto;
  padding: 32px clamp(16px, 4vw, 48px) 72px;
}

/* ══════════════════════════════════════════════
   HERO — compact full-width banner
   ══════════════════════════════════════════════ */
.cpg-hero {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--cpg-blue) 8%,  #fff),
    color-mix(in srgb, var(--cpg-blend) 6%, #fff));
  border: 1px solid var(--cpg-card-border);
  border-radius: 20px;
  padding: clamp(20px, 4vw, 40px);
  margin-bottom: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--cpg-shadow);
}

/* Decorative orb */
.cpg-hero::after {
  content: '';
  position: absolute;
  inset-inline-end: -100px;
  top: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--cpg-blue) 10%, transparent),
    transparent 70%);
  pointer-events: none;
}

.cpg-hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cpg-hero-left { flex: 1; min-width: 260px; }

.cpg-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--cpg-blue);
  background: color-mix(in srgb, var(--cpg-blue) 10%, transparent);
  padding: 3px 12px;
  border-radius: 99px;
  margin-bottom: 12px;
}

.cpg-hero-left h1 {
  font-size: clamp(22px, 3.5vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--cpg-text-main);
  margin: 0 0 12px;
}

.cpg-hero-left p {
  font-size: clamp(13px, 1.6vw, 15px);
  color: var(--cpg-text-muted);
  line-height: 1.7;
  margin: 0;
  max-width: 500px;
}

.cpg-hero-right {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--cpg-card-border);
  border-radius: 16px;
  padding: 14px 22px;
  box-shadow: var(--cpg-shadow);
  flex-shrink: 0;
}

.cpg-kpi {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 0 18px;
}

.cpg-kpi-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--cpg-blue);
  line-height: 1;
}

.cpg-kpi-lbl {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--cpg-text-muted);
  white-space: nowrap;
}

.cpg-kpi-sep {
  width: 1px;
  height: 36px;
  background: var(--cpg-card-border);
}

/* ══════════════════════════════════════════════
   THE KEY LAYOUT FIX:
   Side-by-side split — eliminates vertical waste
   ══════════════════════════════════════════════ */
.cpg-page-split {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: 28px;
  align-items: start;
}

.cpg-page-split.wide-right {
  grid-template-columns: 45% 1fr;
}

.cpg-split-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ─── Section heading inside split ─── */
.cpg-section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--cpg-blue);
}

.cpg-section-label svg { flex-shrink: 0; }

.cpg-section-label h2 {
  font-size: clamp(15px, 2.2vw, 19px);
  font-weight: 800;
  color: var(--cpg-text-main);
  margin: 0;
}

.cpg-section-label--blend { color: var(--cpg-blend); }

/* ══════════════════════════════════════════════
   QUALIFICATIONS — compact timeline list
   ══════════════════════════════════════════════ */
.apg-qual-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  perspective: 1000px;
}

/* vertical line */
.apg-qual-list::before {
  content: '';
  position: absolute;
  inset-inline-start: 26px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, #e11d48, #1565c0);
  border-radius: 2px;
  opacity: .25;
}

.apg-qual-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--cpg-card-border);
  opacity: 0; /* animated by GSAP */
  position: relative;
}
.apg-qual-item:last-child { border-bottom: none; }

/* Year bubble */
.apg-qc-year {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--accent-grad);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--cpg-blue) 30%, transparent);
  letter-spacing: 0;
  text-align: center;
  line-height: 1.2;
}

.apg-qc-body {
  flex: 1;
  min-width: 0;
  padding-top: 2px;
}

.apg-qc-body h3 {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--cpg-text-main);
  margin: 0 0 4px;
  line-height: 1.4;
}

.apg-qc-body p {
  font-size: 12px;
  color: var(--cpg-text-muted);
  margin: 0;
  line-height: 1.5;
}

.apg-qc-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--cpg-blue);
  text-decoration: none;
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--cpg-blue) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--cpg-blue) 15%, transparent);
  transition: all .3s ease;
}

.apg-qc-link:hover {
  background: var(--cpg-blue);
  color: #fff;
}

/* ══════════════════════════════════════════════
   PUBLICATIONS — compact numbered rows
   ══════════════════════════════════════════════ */
.apg-pub-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  perspective: 1000px;
}

.apg-pub-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--cpg-card-bg);
  border: 1px solid var(--cpg-card-border);
  border-radius: 14px;
  box-shadow: var(--cpg-shadow);
  transition: all .35s cubic-bezier(.25,1,.5,1);
  transform-style: preserve-3d;
  opacity: 0; /* animated by GSAP */
}

.apg-pub-card:hover {
  transform: translateX(5px) rotateY(-1.5deg);
  background: color-mix(in srgb, var(--cpg-blue) 2.5%, #fff);
  border-color: color-mix(in srgb, var(--cpg-blue) 22%, transparent);
  box-shadow: var(--cpg-shadow-md);
}

/* Blue accent left border on hover */
.apg-pub-card::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(to bottom, #e11d48, #1565c0);
  opacity: 0;
  transition: opacity .3s;
}
.apg-pub-card { position: relative; }
.apg-pub-card:hover::before { opacity: 1; }

.apg-pub-idx {
  font-size: 13px;
  font-weight: 900;
  color: color-mix(in srgb, var(--cpg-blue) 45%, transparent);
  background: color-mix(in srgb, var(--cpg-blue) 7%, transparent);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.apg-pub-main { flex: 1; min-width: 0; }

.apg-pub-main h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--cpg-text-main);
  margin: 0 0 5px;
  line-height: 1.45;
}

.apg-pub-authors {
  font-size: 11.5px;
  color: var(--cpg-text-muted);
  font-style: italic;
  margin: 0 0 8px;
  line-height: 1.4;
}

.apg-pub-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.apg-pub-year {
  font-size: 10px;
  font-weight: 800;
  color: var(--cpg-text-muted);
  background: color-mix(in srgb, var(--cpg-text-muted) 8%, transparent);
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
}

.apg-pub-journal {
  font-size: 10px;
  font-weight: 700;
  color: var(--cpg-teal);
  background: color-mix(in srgb, var(--cpg-teal) 8%, transparent);
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
}

.apg-pub-pills { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }

.apg-pill {
  font-size: 9.5px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 99px;
  text-decoration: none;
  letter-spacing: .04em;
  transition: all .25s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.apg-pill--doi {
  background: color-mix(in srgb, var(--cpg-blend-soft) 12%, transparent);
  color: var(--cpg-blend-soft);
  border: 1px solid color-mix(in srgb, var(--cpg-blend-soft) 22%, transparent);
}
.apg-pill--doi:hover { background: var(--cpg-blend-soft); color: #fff; }

.apg-pill--pm {
  background: color-mix(in srgb, var(--cpg-blue) 10%, transparent);
  color: var(--cpg-blue);
  border: 1px solid color-mix(in srgb, var(--cpg-blue) 18%, transparent);
}
.apg-pill--pm:hover { background: var(--cpg-blue); color: #fff; }

.apg-pill--full {
  background: color-mix(in srgb, var(--cpg-teal) 10%, transparent);
  color: var(--cpg-teal);
  border: 1px solid color-mix(in srgb, var(--cpg-teal) 18%, transparent);
}
.apg-pill--full:hover { background: var(--cpg-teal); color: #fff; }

/* ══════════════════════════════════════════════
   CONFERENCE CARDS — 2-col auto grid in left pane
   ══════════════════════════════════════════════ */
.cpg-conf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  perspective: 1000px;
}

.cpg-conf-card {
  position: relative;
  overflow: hidden;
  background: var(--cpg-card-bg);
  border: 1px solid var(--cpg-card-border);
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: var(--cpg-shadow);
  transition: all .4s cubic-bezier(.25,1,.5,1);
  transform-style: preserve-3d;
  opacity: 0; /* GSAP */
}

/* Gradient top accent line */
.cpg-conf-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-grad);
  opacity: 0;
  transition: opacity .3s;
}
.cpg-conf-card:hover::before { opacity: 1; }

.cpg-conf-card:hover {
  transform: translateY(-7px) rotateX(2deg) rotateY(-2deg);
  box-shadow: var(--cpg-shadow-md);
  border-color: color-mix(in srgb, var(--cpg-blue) 28%, transparent);
}

.cpg-cc-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.cpg-cc-year {
  font-size: 11px;
  font-weight: 800;
  color: var(--cpg-blue);
  background: color-mix(in srgb, var(--cpg-blue) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--cpg-blue) 18%, transparent);
  border-radius: 6px;
  padding: 2px 9px;
}

.cpg-cc-type {
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--accent-grad);
  border-radius: 99px;
  padding: 2px 10px;
}

.cpg-cc-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--cpg-text-main);
  line-height: 1.45;
  margin: 0 0 10px;
}

.cpg-cc-paper {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  font-size: 11.5px;
  color: var(--cpg-text-muted);
  line-height: 1.5;
  margin-bottom: 10px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--cpg-blue) 4%, transparent);
  border-radius: 10px;
  border-inline-start: 3px solid var(--cpg-blend);
}

.cpg-cc-paper svg { color: var(--cpg-blend); flex-shrink: 0; }

.cpg-cc-loc {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  color: var(--cpg-text-muted);
  margin-bottom: 10px;
}

.cpg-cc-link {
  display: inline-flex;
  align-items: center;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--cpg-blue);
  text-decoration: none;
  transition: color .25s;
}
.cpg-cc-link:hover { color: var(--cpg-blend); }

.cpg-cc-num-bg {
  position: absolute;
  inset-inline-end: 12px;
  bottom: 6px;
  font-size: 58px;
  font-weight: 900;
  color: color-mix(in srgb, var(--cpg-blue) 4%, transparent);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════════════════════
   COURSES — compact right-pane list
   ══════════════════════════════════════════════ */
.cpg-courses-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  perspective: 800px;
}

.cpg-course-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--cpg-card-bg);
  border: 1px solid var(--cpg-card-border);
  border-radius: 14px;
  box-shadow: var(--cpg-shadow);
  transition: all .35s cubic-bezier(.25,1,.5,1);
  opacity: 0; /* GSAP */
}

.cpg-course-row:hover {
  transform: translateY(-3px) rotateX(1.5deg);
  background: color-mix(in srgb, var(--cpg-blend) 2.5%, #fff);
  border-color: color-mix(in srgb, var(--cpg-blend) 22%, transparent);
}

.cpg-cr-year {
  font-size: 11px;
  font-weight: 900;
  color: #fff;
  background: var(--accent-grad);
  border-radius: 8px;
  padding: 5px 10px;
  min-width: 50px;
  text-align: center;
  flex-shrink: 0;
  box-shadow: 0 3px 10px color-mix(in srgb, var(--cpg-blend) 25%, transparent);
}

.cpg-cr-body { flex: 1; min-width: 0; }

.cpg-cr-body h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--cpg-text-main);
  margin: 0 0 3px;
  line-height: 1.4;
}

.cpg-cr-body p {
  font-size: 11.5px;
  color: var(--cpg-text-muted);
  margin: 0;
}

.cpg-cert-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--cpg-blue);
  background: color-mix(in srgb, var(--cpg-blue) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--cpg-blue) 15%, transparent);
  border-radius: 99px;
  padding: 5px 12px;
  transition: all .3s ease;
  flex-shrink: 0;
  text-decoration: none;
}
.cpg-cert-btn:hover {
  background: var(--cpg-blue);
  color: #fff;
}

/* ══════════════════════════════════════════════
   DUAL SECTIONS — Tab-free side-by-side layout
   Both sections always visible, no switching
   ══════════════════════════════════════════════ */
.cpg-dual-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

/* Conferences page: equal columns, full width */
.cpg-dual-sections--conf {
  grid-template-columns: 1fr 1fr;
}

.cpg-section-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cpg-section-col--narrow {
  /* Stays at natural grid width */
}

/* ── Section Column Heading ── */
.cpg-section-heading {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--cpg-blue) 4%, #fff),
    color-mix(in srgb, var(--cpg-blend) 3%, #fff));
  border: 1px solid var(--cpg-card-border);
  border-radius: 20px 6px 20px 6px;
  box-shadow: var(--cpg-shadow);
  position: sticky;
  top: 88px;
  z-index: 5;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.cpg-section-heading-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.cpg-section-heading-icon--blue {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--cpg-blue) 30%, transparent);
}

.cpg-section-heading-icon--blend {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--cpg-blend) 30%, transparent);
}

.cpg-section-heading h2 {
  font-size: clamp(14px, 1.8vw, 18px);
  font-weight: 800;
  color: var(--cpg-text-main);
  margin: 0 0 4px;
  line-height: 1.3;
}

.cpg-section-sub {
  font-size: 11.5px;
  color: var(--cpg-text-muted);
  margin: 0;
  font-weight: 600;
}

/* Organic border radius upgrades for cards to replace sharp rectangles */
.cpg-conf-card, .apg-pub-card, .apg-qual-item, .cpg-course-row {
  border-radius: 24px 8px 24px 8px !important;
}

/* ══════════════════════════════════════════════
   HEADER HIDE-ON-SCROLL INTEGRATION
   ══════════════════════════════════════════════ */
.site-header {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s, box-shadow 0.3s, border 0.3s, top 0.4s;
}
.site-header.header-hidden {
  transform: translateY(-120px) !important;
}

/* ══════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ══════════════════════════════════════════════ */
@media (max-width: 860px) {
  .cpg-page-split,
  .cpg-page-split.wide-right {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .apg-qual-list::before { display: none; }
  .cpg-section-heading { position: static; }
}

@media (max-width: 640px) {
  .cpg-dual-sections,
  .cpg-dual-sections--conf {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .cpg-hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  .cpg-hero-right {
    width: 100%;
    justify-content: space-around;
  }
  .cpg-course-row {
    flex-wrap: wrap;
    gap: 10px;
  }
  .cpg-cert-btn { align-self: flex-end; }
}

@media (max-width: 480px) {
  .cpg-wrap { padding: 20px 14px 56px; }
  .cpg-hero { padding: 18px; border-radius: 14px; }
  .cpg-conf-grid { grid-template-columns: 1fr; }
  .apg-pub-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}


/* ═══ SKILLS PAGE: compact — reduce excess whitespace ═══ */
#skills.section-pad {
  padding-top: 40px !important;
  padding-bottom: 48px !important;
  min-height: unset !important;
}
.skills-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.skills-two-col .scroll-item {
  margin-bottom: 10px !important;
}

/* Scroll track max height removed — prevents huge empty sections */
.scroll-col .scroll-viewport {
  max-height: none !important;
  height: auto !important;
  overflow: visible !important;
}

/* ═══ ALL CPG/CONTENT PAGES: calm gradient background ═══ */
.cpg-wrap {
  background: transparent !important;
}