/* ═══════════════════════════════════════════════
   ROOT VARIABLES — warm paper palette + accents
═══════════════════════════════════════════════ */
:root {
  --paper:   #faf8f4;
  --paper2:  #f3f0e8;
  --paper3:  #ece8de;
  --white:   #ffffff;
  --ink:     #221e18;
  --ink2:    #5a5248;
  --ink3:    #9a9288;
  --rule:    #ddd8cc;
  --rule2:   #eae6de;

  /* Concert = forest green */
  --green:   #3d6b55;
  --green2:  #5a8c72;
  --green3:  #c8e4d8;

  /* Musical = terracotta */
  --terra:   #a84e35;
  --terra2:  #c87050;
  --terra3:  #f0ddd8;

  /* J-pop = navy */
  --navy:    #2d4060;
  --navy2:   #4a6090;

  /* C-pop = warm gold */
  --gold:    #8a6e2a;
  --gold2:   #b89040;

  /* Standup = warm amber */
  --amber:   #8a5e20;
  --amber2:  #b07838;
  --amber3:  #f0e0c8;

  /* Performance = soft violet */
  --violet:  #5b4b8a;
  --violet2: #7b6baa;
  --violet3: #ddd8f0;

  /* Backwards compat */
  --border:  var(--rule);
  --border2: var(--rule2);
  --concert: var(--green);
  --musical: var(--terra);
  --purple:  var(--green);
  --purple2: var(--green2);
  --glow-purple: rgba(61,107,85,0.14);
  --glow-gold:   rgba(168,78,53,0.14);
}

/* ═══════════════════════════════════════════════
   BASE
═══════════════════════════════════════════════ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Noto Sans TC', 'Inter', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle ruled-paper lines */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: repeating-linear-gradient(
    transparent, transparent 31px,
    var(--rule2) 31px, var(--rule2) 32px
  );
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

/* ═══════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════ */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,248,244,0.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--rule);
  padding: 12px 48px;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.header-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.header-title h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.header-icon { font-size: 1.2rem; }

.header-sub {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink3);
  font-family: 'DM Mono', monospace;
  align-self: center;
  flex-shrink: 0;
}

.search-wrap {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink3);
  font-size: 0.88rem;
  pointer-events: none;
}

#searchInput {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--rule);
  color: var(--ink);
  padding: 9px 16px 9px 38px;
  border-radius: 4px;
  font-size: 0.88rem;
  font-family: inherit;
  transition: all 0.25s;
  outline: none;
}

#searchInput:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(61,107,85,0.12);
}

#searchInput::placeholder { color: var(--ink3); }

/* ═══════════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════════ */
.hero {
  position: relative;
  z-index: 1;
  padding: 80px 48px 64px;
  text-align: center;
  overflow: hidden;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Giant number --- */
.hero-number-wrap {
  position: relative;
  margin-bottom: 56px;
  animation: heroFadeIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-number-wrap::before {
  content: '';
  display: block;
  width: 220px;
  height: 220px;
  border: 2.5px solid var(--rule);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -55%);
  opacity: 0.2;
  pointer-events: none;
}

.hero-number {
  font-family: 'DM Mono', monospace;
  font-size: clamp(8rem, 20vw, 14rem);
  font-weight: 500;
  line-height: 0.85;
  letter-spacing: -0.04em;
  position: relative;
  display: inline-block;
  color: var(--ink);
  text-shadow: 1px 1px 0 var(--paper3), 2px 3px 6px rgba(61,107,85,0.12);
}

@supports (-webkit-background-clip: text) {
  .hero-number {
    background: linear-gradient(170deg, var(--ink) 0%, var(--ink2) 40%, var(--green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
  }
}

.hero-number-sub {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--ink2);
  letter-spacing: 0.3em;
  margin-top: 8px;
}

.hero-number-range {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink3);
  letter-spacing: 0.25em;
  margin-top: 12px;
  text-transform: uppercase;
}

/* --- Stats grid (type stamps) --- */
.hero-stats {
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats-primary {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.stat-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 20px 14px;
  border: 1.5px solid var(--rule);
  border-radius: 4px;
  min-width: 120px;
  background: var(--white);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.stat-block:hover {
  border-color: var(--ink3);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-block-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink3);
  font-weight: 600;
}

.stat-block-count {
  font-family: 'DM Mono', monospace;
  font-size: 2rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-block--concert .stat-block-count     { color: var(--green); }
.stat-block--musical .stat-block-count     { color: var(--terra); }
.stat-block--standup .stat-block-count     { color: var(--amber); }
.stat-block--performance .stat-block-count { color: var(--violet); }

.stat-block-sub {
  font-family: 'DM Mono', monospace;
  font-size: 0.58rem;
  color: var(--ink3);
  letter-spacing: 0.06em;
}

/* --- Secondary stats --- */
.hero-stats-secondary {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}

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

.stat-mini-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.54rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink3);
  font-weight: 600;
}

.stat-mini-value {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  margin-top: 2px;
}

.stat-mini-value span { color: var(--green); }

/* --- Hero entrance animation --- */
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ═══════════════════════════════════════════════
   YEARLY CHART (collapsible)
═══════════════════════════════════════════════ */
.yearly-chart-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 48px 0;
  position: relative;
  z-index: 1;
}

.yearly-chart-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  width: 100%;
  text-align: left;
}

.yearly-chart-title {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink3);
  font-weight: 600;
  font-family: 'DM Mono', monospace;
  transition: color 0.2s;
}

.yearly-chart-toggle:hover .yearly-chart-title { color: var(--ink2); }

.chart-toggle-icon {
  font-size: 0.58rem;
  color: var(--ink3);
  transition: transform 0.3s ease, color 0.2s;
}

.yearly-chart-toggle[aria-expanded="true"] .chart-toggle-icon {
  transform: rotate(180deg);
}

.yearly-chart-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1), opacity 0.3s ease;
  opacity: 0;
}

.yearly-chart-body.open {
  max-height: 800px;
  overflow: visible;
  opacity: 1;
  padding-top: 14px;
}

/* ─── Chart tabs ─── */
.chart-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0;
}

.chart-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 6px 16px;
  font-size: 0.68rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.08em;
  color: var(--ink3);
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
}

.chart-tab:hover { color: var(--ink2); }
.chart-tab.active {
  color: var(--green);
  border-bottom-color: var(--green);
}

.chart-tab-panel { display: none; }
.chart-tab-panel.active { display: block; }

.yearly-chart-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.year-row {
  display: grid;
  grid-template-columns: 42px 1fr 32px;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.year-row:hover { opacity: 0.75; }

.year-row-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ink3);
  letter-spacing: 0.04em;
  text-align: right;
  font-family: 'DM Mono', monospace;
}

.year-bar-track {
  height: 8px;
  background: var(--rule2);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
}

.year-bar-concert {
  background: var(--green);
  height: 100%;
  border-radius: 4px 0 0 4px;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
  min-width: 4px;
}

.year-bar-musical {
  background: var(--terra);
  height: 100%;
  border-radius: 0 4px 4px 0;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}

.year-bar-concert.only { border-radius: 4px; }
.year-bar-musical.only { border-radius: 4px; }

.year-bar-standup {
  background: var(--amber);
  height: 100%;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}
.year-bar-performance {
  background: var(--violet);
  height: 100%;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
}
.year-bar-standup.only  { border-radius: 4px; }
.year-bar-performance.only { border-radius: 4px; }

.year-row-count {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ink2);
  text-align: left;
  font-family: 'DM Mono', monospace;
}

.chart-legend {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.62rem;
  color: var(--ink3);
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.04em;
}

.legend-dot { width: 8px; height: 8px; border-radius: 2px; }
.legend-dot.concert     { background: var(--green); }
.legend-dot.musical     { background: var(--terra); }
.legend-dot.standup     { background: var(--amber); }
.legend-dot.performance { background: var(--violet); }

/* ═══════════════════════════════════════════════
   EXPENSE LINE CHART
═══════════════════════════════════════════════ */
.expense-chart {
  position: relative;
  padding: 16px 0 8px;
  overflow: visible;
}

.expense-chart svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.expense-line {
  fill: none;
  stroke: var(--green);
  stroke-width: 1.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.expense-area {
  fill: url(#expenseGradient);
  opacity: 0.08;
}

.expense-dot {
  fill: var(--white);
  stroke: var(--green);
  stroke-width: 1.5;
  cursor: pointer;
  transition: r 0.2s;
}

.expense-dot:hover { r: 5; }

.expense-label-year {
  fill: var(--ink3);
  font-size: 10px;
  font-family: 'DM Mono', monospace;
  text-anchor: middle;
}

.expense-tooltip {
  position: absolute;
  background: var(--ink);
  color: var(--white);
  font-size: 0.72rem;
  font-family: 'DM Mono', monospace;
  padding: 4px 10px;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  white-space: nowrap;
  transform: translate(-50%, -100%);
  margin-top: -10px;
}

.expense-tooltip.visible { opacity: 1; }

.expense-summary {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 8px;
  font-size: 0.62rem;
  font-family: 'DM Mono', monospace;
  color: var(--ink3);
}

.expense-summary strong {
  color: var(--ink);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════
   MAIN LAYOUT
═══════════════════════════════════════════════ */
.main-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 48px 80px;
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 40px;
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════
   YEAR SECTIONS
═══════════════════════════════════════════════ */
.year-section { margin-bottom: 24px; }
.year-section.all-hidden { display: none; }

.year-divider {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 24px;
  padding-top: 8px;
}

.year-divider::before,
.year-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--rule);
}

/* Large editorial year number */
.year-badge {
  font-size: 2rem;
  font-weight: 900;
  color: var(--rule);
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  user-select: none;
}

/* ═══════════════════════════════════════════════
   CARDS CONTAINER (timeline line)
═══════════════════════════════════════════════ */
.cards-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-left: 24px;
  position: relative;
}

.cards-container::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--green) 0%,
    rgba(61,107,85,0.15) 75%,
    transparent 100%
  );
}

/* ═══════════════════════════════════════════════
   CONCERT CARD
═══════════════════════════════════════════════ */
.concert-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
  position: relative;
  animation: fadeInUp 0.35s ease both;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 2px 8px rgba(0,0,0,0.03);
}

/* Timeline dot */
.concert-card::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 22px;
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--green);
  transition: all 0.25s;
  z-index: 2;
}

.concert-card.musical::before {
  background: var(--terra);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--terra);
}

.concert-card:hover {
  border-color: rgba(61,107,85,0.3);
  transform: translateY(-2px) translateX(4px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08), 0 6px 24px rgba(61,107,85,0.08);
}

.concert-card.musical:hover {
  border-color: rgba(168,78,53,0.3);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08), 0 4px 20px rgba(168,78,53,0.07);
}

.concert-card.expanded {
  border-color: rgba(61,107,85,0.2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.concert-card.musical.expanded { border-color: rgba(168,78,53,0.2); }

/* ─── standup (脫口秀) cards ─── */
.concert-card.standup::before {
  background: var(--amber);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--amber);
}
.concert-card.standup:hover {
  border-color: rgba(138,94,32,0.3);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08), 0 4px 20px rgba(138,94,32,0.07);
}
.concert-card.standup.expanded { border-color: rgba(138,94,32,0.2); }
.concert-card.standup .card-accent    { background: var(--amber); }
.concert-card.standup .card-date-block { background: var(--amber); }
.concert-card.standup .card-summary   { color: var(--amber); }
.concert-card.standup:hover .card-toggle { color: var(--amber); }

/* ─── performance (現場演出) cards ─── */
.concert-card.performance::before {
  background: var(--violet);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 4px var(--violet);
}
.concert-card.performance:hover {
  border-color: rgba(91,75,138,0.3);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08), 0 4px 20px rgba(91,75,138,0.07);
}
.concert-card.performance.expanded { border-color: rgba(91,75,138,0.2); }
.concert-card.performance .card-accent     { background: var(--violet); }
.concert-card.performance .card-date-block { background: var(--violet); }
.concert-card.performance .card-summary    { color: var(--violet); }
.concert-card.performance:hover .card-toggle { color: var(--violet); }

.concert-card.hidden { display: none; }

/* ─── Card top accent bar ─── */
.card-accent {
  height: 3px;
  background: var(--green);
  opacity: 0.75;
}

.concert-card.musical .card-accent { background: var(--terra); }

/* ─── Card header grid ─── */
.card-header {
  padding: 16px 18px 14px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: start;
}

/* ─── Date sticker block ─── */
.card-date-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--green);
  border-radius: 4px;
  padding: 6px 10px;
  min-width: 48px;
  gap: 1px;
}

.concert-card.musical .card-date-block { background: var(--terra); }

.date-month {
  font-size: 0.56rem;
  color: rgba(255,255,255,0.82);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  font-family: 'DM Mono', monospace;
}

.date-day {
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1.05;
  color: #fff;
  letter-spacing: -0.02em;
}

.date-year {
  font-size: 0.52rem;
  color: rgba(255,255,255,0.6);
  font-family: 'DM Mono', monospace;
}

/* ─── Card info ─── */
.card-info { min-width: 0; }

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 7px;
}

.card-type-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.58rem;
  padding: 2px 7px;
  border-radius: 2px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'DM Mono', monospace;
}

.badge-concert {
  background: rgba(61,107,85,0.1);
  color: var(--green);
  border: 1px solid rgba(61,107,85,0.25);
}

.badge-musical {
  background: rgba(168,78,53,0.1);
  color: var(--terra);
  border: 1px solid rgba(168,78,53,0.25);
}

.badge-standup {
  background: rgba(138,94,32,0.1);
  color: var(--amber);
  border: 1px solid rgba(138,94,32,0.25);
}

.badge-performance {
  background: rgba(91,75,138,0.1);
  color: var(--violet);
  border: 1px solid rgba(91,75,138,0.25);
}

.badge-movie {
  background: rgba(30,30,30,0.08);
  color: #444;
  border: 1px solid rgba(30,30,30,0.2);
}

/* Language badges */
.badge-lang {
  display: inline-flex;
  font-size: 0.58rem;
  padding: 2px 7px;
  border-radius: 2px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'DM Mono', monospace;
}

.badge-jpop {
  background: rgba(45,64,96,0.08);
  color: var(--navy);
  border: 1px solid rgba(45,64,96,0.2);
}

.badge-cpop {
  background: rgba(138,110,42,0.09);
  color: var(--gold);
  border: 1px solid rgba(138,110,42,0.22);
}

.card-artist {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

.card-title {
  font-size: 0.78rem;
  color: var(--ink2);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-venue {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  color: var(--ink3);
  margin-top: 5px;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.02em;
}

/* ─── Summary: Caveat handwritten, just here ─── */
.card-summary {
  margin-top: 9px;
  font-size: 1rem;
  font-family: 'Caveat', cursive;
  color: var(--green);
  line-height: 1.45;
  font-weight: 500;
}

.concert-card.musical .card-summary { color: var(--terra); }

/* ─── Card toggle button ─── */
.card-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--paper2);
  border-radius: 50%;
  border: 1px solid var(--rule);
  color: var(--ink3);
  font-size: 0.75rem;
  transition: all 0.25s;
  flex-shrink: 0;
}

.concert-card:hover .card-toggle {
  border-color: rgba(61,107,85,0.3);
  color: var(--green);
}

.concert-card.musical:hover .card-toggle {
  border-color: rgba(168,78,53,0.3);
  color: var(--terra);
}

.card-toggle-icon {
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  display: inline-block;
}

.concert-card.expanded .card-toggle-icon { transform: rotate(180deg); }

/* ─── Card body (expanded) ─── */
.card-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4,0,0.2,1);
}

.concert-card.expanded .card-body { max-height: 1400px; }

.review-text {
  font-size: 0.82rem;
  color: var(--ink2);
  line-height: 1.85;
  white-space: pre-line;
  margin-bottom: 16px;
  border-left: 2px solid var(--rule);
  padding-left: 12px;
}

.ig-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(61,107,85,0.08);
  border: 1px solid rgba(61,107,85,0.22);
  color: var(--green);
  padding: 6px 14px;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.04em;
}

.ig-btn:hover { background: rgba(61,107,85,0.14); }

/* ─── Ticket info strip ─── */
.tkt-info {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tkt-field {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--paper2);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 3px 10px;
  font-size: 0.75rem;
  color: var(--ink2);
  font-family: 'DM Mono', monospace;
}

/* ─── Merch images ─── */
.merch-row {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--rule2);
}

.merch-row-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 8px;
  font-family: 'DM Mono', monospace;
}

.merch-row-imgs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.merch-img {
  width: 90px;
  height: 90px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--rule);
  background: var(--paper2);
  transition: transform 0.3s ease;
}

.merch-img:hover { transform: scale(1.05); }

/* ─── Images: portrait / landscape ─── */
.card-thumb-wrap {
  margin-bottom: 16px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--paper2);
  text-align: center;
  line-height: 0;
}

.card-thumb-wrap.landscape .card-thumb {
  width: 100%;
  height: auto;
  display: block;
}

.card-thumb-wrap.portrait .card-thumb {
  max-width: 62%;
  width: auto;
  height: auto;
  display: block;
  margin: 0 auto;
}

.card-thumb {
  max-width: 100%;
  width: auto;
  height: auto;
  display: block;
  border-radius: 4px;
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}

.card-thumb-wrap:hover .card-thumb { transform: scale(1.02); }

/* ═══════════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════════ */
.sidebar {
  position: sticky;
  top: 76px;
  max-height: calc(100vh - 96px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 2px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 16px;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar-title {
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink3);
  font-weight: 600;
  margin-bottom: 12px;
  font-family: 'DM Mono', monospace;
}

.year-nav-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.year-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: 1px solid transparent;
  color: var(--ink2);
  padding: 7px 10px;
  border-radius: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
}

.year-nav-btn:hover, .year-nav-btn.active {
  background: rgba(61,107,85,0.08);
  border-color: rgba(61,107,85,0.2);
  color: var(--green);
}

.year-nav-count {
  font-size: 0.62rem;
  background: var(--paper2);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--ink3);
  font-family: 'DM Mono', monospace;
}

.filter-btns {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--paper2);
  border: 1px solid var(--rule);
  color: var(--ink2);
  padding: 5px 11px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active {
  background: rgba(61,107,85,0.1);
  border-color: rgba(61,107,85,0.3);
  color: var(--green);
}

.filter-btn.active-musical {
  background: rgba(168,78,53,0.1);
  border-color: rgba(168,78,53,0.3);
  color: var(--terra);
}

.filter-btn.active-standup {
  background: rgba(138,94,32,0.1);
  border-color: rgba(138,94,32,0.3);
  color: var(--amber);
}

.filter-btn.active-performance {
  background: rgba(91,75,138,0.1);
  border-color: rgba(91,75,138,0.3);
  color: var(--violet);
}

.filter-btn:hover { opacity: 0.8; }

/* ═══════════════════════════════════════════════
   EMPTY STATE
═══════════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink3);
  display: none;
  grid-column: 1;
}

.empty-state.visible { display: block; }

.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.4;
}

/* ═══════════════════════════════════════════════
   SCROLLBAR
═══════════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--paper2); }
::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media (max-width: 960px) {
  header, .yearly-chart-section { padding-left: 24px; padding-right: 24px; }
  .hero { padding: 56px 24px 48px; }
  .hero-stats-primary { gap: 16px; }
  .main-layout { grid-template-columns: 1fr; padding: 24px 24px 60px; }
  .sidebar {
    position: static;
    order: -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
}

@media (max-width: 600px) {
  /* ─── Header: search on second row ─── */
  header { padding: 10px 16px; }
  header, .yearly-chart-section { padding-left: 16px; padding-right: 16px; }
  .header-inner { gap: 8px; }
  .header-title h1 { font-size: 1rem; }
  .header-sub { display: none; }
  .search-wrap { flex-basis: 100%; min-width: 0; order: 10; }
  #searchInput { padding: 10px 16px 10px 38px; font-size: 0.9rem; }

  /* ─── Hero ─── */
  .hero { padding: 40px 16px 32px; }
  .hero-number-wrap { margin-bottom: 36px; }
  .hero-stats-primary { gap: 10px; }
  .stat-block { min-width: 100px; padding: 12px 14px 10px; }
  .stat-block-count { font-size: 1.6rem; }
  .hero-number-sub { font-size: 1.1rem; }
  .hero-number-range { font-size: 0.7rem; }
  .hero-stats-secondary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  /* ─── Sidebar: hide year nav, keep filters only ─── */
  .main-layout { padding: 16px 16px 80px; }
  .sidebar {
    grid-template-columns: 1fr;
    gap: 8px;
    max-height: none;
    overflow-y: visible;
  }
  .sidebar-card { padding: 12px; }
  .sidebar-title { margin-bottom: 8px; }
  .sidebar-card:has(#yearNav) { display: none; }

  /* ─── Filter buttons ─── */
  .filter-btn { padding: 7px 14px; font-size: 0.78rem; min-height: 36px; }

  /* ─── Timeline cards ─── */
  .cards-container { padding-left: 18px; }
  .concert-card::before { left: -18px; }
  .card-header { gap: 10px; padding: 14px; }
  .card-date-block { min-width: 44px; }
  .date-month { font-size: 0.52rem; }
  .date-day { font-size: 1.15rem; }
  .date-year { font-size: 0.52rem; }
  .card-toggle { width: 36px; height: 36px; min-width: 36px; }

  /* ─── Card body (expanded) ─── */
  .tkt-info { gap: 4px; }
  .tkt-field { font-size: 0.7rem; padding: 3px 8px; }
  .merch-img { width: 72px; height: 72px; }
  .review-text { font-size: 0.78rem; }

  /* ─── Portrait images: full width on mobile ─── */
  .card-thumb-wrap.portrait .card-thumb {
    max-width: 100%;
    width: 100%;
  }

  /* ─── Chart ─── */
  .year-row { min-height: 32px; cursor: pointer; }
}

/* ─── Extra small screens ─── */
@media (max-width: 480px) {
  .hero { padding: 32px 12px 24px; }
  .hero-number-wrap { margin-bottom: 28px; }
  .hero-stats-primary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .stat-block { min-width: 0; }
  .stat-mini { padding: 8px 10px; }

  .main-layout { padding: 12px 12px 48px; }
  .card-header { padding: 12px; }
  .card-venue {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }
  .card-summary { font-size: 0.72rem; }
  .cards-container { padding-left: 14px; }
  .concert-card::before { left: -14px; }
}

/* ═══════════════════════════════════════════════
   BACK TO TOP BUTTON
═══════════════════════════════════════════════ */
.back-to-top {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: var(--white);
  color: var(--ink2);
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: opacity 0.3s, transform 0.3s;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.back-to-top.visible {
  display: flex;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

/* ═══════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}