/* ============================================================
   EXPLORE SECTION — Interactive "Dossier" Personal Info
   Split layout · Accordion · Timeline · Venn CTAs
   ============================================================ */

/* ── Theme Tokens ────────────────────────────────────────── */
[data-theme="dark"] .explore {
  --exp-bg:            var(--bg);
  --exp-text:          #f0f0f3;
  --exp-muted:         rgba(240,240,243,0.55);
  --exp-dim:           rgba(240,240,243,0.28);
  --exp-faint:         rgba(240,240,243,0.12);
  --exp-border:        rgba(255,255,255,0.07);
  --exp-border-h:      rgba(255,255,255,0.16);
  --exp-surface:       rgba(255,255,255,0.04);
  --exp-surface-h:     rgba(255,255,255,0.07);
  --exp-accent:        var(--accent);
  --exp-accent-dim:    var(--accent-dim);
  --exp-accent-glow:   var(--accent-glow);
  --exp-dot-active:    var(--accent);
  --exp-dot-inactive:  rgba(255,255,255,0.15);
  --exp-circle-1:      rgba(255,255,255,0.08);
  --exp-circle-2:      rgba(255,255,255,0.12);
  --exp-panel-bg:      rgba(16,16,20,0.7);
}

[data-theme="light"] .explore {
  --exp-bg:            var(--bg);
  --exp-text:          #111;
  --exp-muted:         rgba(17,17,17,0.55);
  --exp-dim:           rgba(17,17,17,0.30);
  --exp-faint:         rgba(17,17,17,0.10);
  --exp-border:        rgba(0,0,0,0.07);
  --exp-border-h:      rgba(0,0,0,0.16);
  --exp-surface:       rgba(0,0,0,0.03);
  --exp-surface-h:     rgba(0,0,0,0.06);
  --exp-accent:        var(--accent);
  --exp-accent-dim:    var(--accent-dim);
  --exp-accent-glow:   var(--accent-glow);
  --exp-dot-active:    var(--accent);
  --exp-dot-inactive:  rgba(0,0,0,0.12);
  --exp-circle-1:      rgba(0,0,0,0.05);
  --exp-circle-2:      rgba(0,0,0,0.08);
  --exp-panel-bg:      rgba(255,255,255,0.7);
}

/* ── Section Layout ──────────────────────────────────────── */
.explore {
  background: var(--exp-bg);
  color: var(--exp-text);
  position: relative;
  overflow: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

.explore-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 6rem) clamp(1.5rem, 5vw, 3rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 5rem);
  align-items: start;
}

/* ── Ambient Glow ────────────────────────────────────────── */
.explore-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: var(--exp-accent-glow);
  filter: blur(160px);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* ══════════════════════════════════════════════════════════
   LEFT COLUMN — Statement + Venn CTAs
   ══════════════════════════════════════════════════════════ */
.explore-left {
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.explore-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--exp-accent);
  margin-bottom: 1.5rem;
}

.explore-heading {
  font-family: var(--font-sans);
  font-size: clamp(3rem, 6vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--exp-text);
  margin-bottom: 1.8rem;
}

.explore-heading em {
  font-style: normal;
  color: var(--exp-dim);
  font-weight: 700;
}

.explore-desc {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--exp-muted);
  line-height: 1.75;
  max-width: 440px;
  margin-bottom: 3.5rem;
}

/* ── Creative CTA Buttons ────────────────────────────────── */
.explore-ctas {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 340px;
}

.explore-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  border-radius: 60px;
  background: var(--exp-surface);
  border: 1px solid var(--exp-border);
  color: var(--exp-text);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  cursor: pointer;
  transition:
    background     0.4s var(--ease-out),
    border-color   0.4s var(--ease-out),
    transform      0.45s var(--ease-spring),
    box-shadow     0.45s var(--ease-out);
}

.explore-btn:hover {
  background: var(--exp-surface-h);
  border-color: var(--exp-border-h);
  transform: translateX(6px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}

.explore-btn--accent {
  background: var(--exp-accent-dim);
  border-color: var(--exp-accent);
}

.explore-btn--accent:hover {
  background: var(--exp-accent-glow);
  border-color: var(--exp-accent);
  box-shadow:
    0 0 0 1px var(--exp-accent-dim),
    0 8px 32px rgba(0,0,0,0.2);
}

/* shimmer sweep */
.explore-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%; bottom: 0;
  width: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.06) 50%,
    transparent 100%
  );
  transition: left 0.6s var(--ease-out);
  pointer-events: none;
}

.explore-btn:hover::before {
  left: 100%;
}

/* icon */
.explore-btn__icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--exp-surface);
  border: 1px solid var(--exp-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background 0.3s var(--ease-out),
    border-color 0.3s var(--ease-out),
    transform 0.4s var(--ease-spring);
}

.explore-btn:hover .explore-btn__icon {
  background: var(--exp-surface-h);
  border-color: var(--exp-border-h);
  transform: scale(1.1);
}

.explore-btn--accent .explore-btn__icon {
  background: var(--exp-accent-dim);
  border-color: var(--exp-accent);
}

.explore-btn__icon svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* text */
.explore-btn__text {
  flex: 1;
  position: relative;
  z-index: 1;
}

/* arrow */
.explore-btn__arrow {
  font-size: 1.1rem;
  opacity: 0.4;
  transition:
    transform 0.4s var(--ease-spring),
    opacity 0.3s ease;
  position: relative;
  z-index: 1;
}

.explore-btn:hover .explore-btn__arrow {
  transform: translateX(4px);
  opacity: 1;
}

/* ══════════════════════════════════════════════════════════
   RIGHT COLUMN — Accordion Panel
   ══════════════════════════════════════════════════════════ */
.explore-right {
  position: relative;
  z-index: 1;
}

.explore-panel {
  background: var(--exp-panel-bg);
  border: 1px solid var(--exp-border);
  border-radius: 24px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  overflow: hidden;
  transition: border-color 0.4s var(--ease-out);
}

.explore-panel:hover {
  border-color: var(--exp-border-h);
}

/* ── Accordion Item ──────────────────────────────────────── */
.accord-item {
  border-bottom: 1px solid var(--exp-border);
}

.accord-item:last-child {
  border-bottom: none;
}

.accord-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  cursor: pointer;
  user-select: none;
  gap: 1rem;
  background: none;
  width: 100%;
  text-align: left;
}

.accord-title {
  font-family: var(--font-sans);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--exp-text);
  font-style: italic;
  transition: color 0.3s ease;
}

.accord-header:hover .accord-title {
  color: var(--exp-accent);
}

.accord-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--exp-border);
  background: var(--exp-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background 0.3s var(--ease-out),
    border-color 0.3s var(--ease-out),
    transform 0.4s var(--ease-spring),
    color 0.3s ease;
  color: var(--exp-dim);
  font-size: 1.2rem;
  line-height: 1;
}

.accord-toggle svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  transition: transform 0.4s var(--ease-spring);
}

.accord-item.open .accord-toggle {
  background: var(--exp-accent-dim);
  border-color: var(--exp-accent);
  color: var(--exp-accent);
  transform: rotate(45deg);
}

.accord-header:hover .accord-toggle {
  border-color: var(--exp-border-h);
  background: var(--exp-surface-h);
}

/* ── Accordion Content ───────────────────────────────────── */
.accord-body {
  height: 0;
  overflow: hidden;
  will-change: height;
}

.accord-body-inner {
  padding: 0 0 1.5rem 0;
}

.accord-desc {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--exp-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* ── Timeline Entry ──────────────────────────────────────── */
.timeline-entry {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.75rem 0;
  position: relative;
}

.timeline-entry + .timeline-entry {
  border-top: 1px solid var(--exp-border);
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--exp-accent);
  background: var(--exp-bg);
  flex-shrink: 0;
  margin-top: 4px;
  position: relative;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.timeline-dot.active {
  background: var(--exp-accent);
  box-shadow: 0 0 10px var(--exp-accent-glow);
}

.timeline-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.timeline-degree {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--exp-text);
  line-height: 1.3;
}

.timeline-school {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--exp-muted);
  font-weight: 400;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--exp-dim);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

/* ── Skill pill list inside accordion ────────────────────── */
.accord-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 0.5rem;
}

.accord-pill {
  padding: 6px 14px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  border: 1px solid var(--exp-border);
  background: var(--exp-surface);
  color: var(--exp-muted);
  transition: all 0.3s var(--ease-out);
}

.accord-pill:hover {
  color: var(--exp-text);
  border-color: var(--exp-accent);
  background: var(--exp-accent-dim);
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .explore-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .explore-left {
    align-items: center;
    text-align: center;
  }

  .explore-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .venn-ctas {
    justify-content: center;
  }

  .explore-panel {
    max-width: 560px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .explore-heading {
    font-size: 2.8rem;
  }

  .explore-ctas {
    max-width: 100%;
  }

  .explore-panel {
    border-radius: 20px;
    padding: 1.25rem;
  }
}