html, body {
  height: 100%;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-1);
  background: var(--bg-app);
  text-rendering: optimizeLegibility;
  font-kerning: normal;
  font-optical-sizing: auto;
  letter-spacing: var(--tracking-normal);
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection { background: rgba(37, 99, 235, 0.18); }

/* Asobi Mode: 日替わりテーマの軽い背景リフト（有効時のみ） */
html[data-asobi="on"] #bg-gradient {
  filter: blur(28px) saturate(125%) hue-rotate(12deg);
  opacity: 0.95;
  transition: filter .6s ease, opacity .6s ease;
}

/* ダークテーマは app.css に強化版を定義 */

#bg-gradient {
  position: fixed;
  inset: -8% -8% -12% -8%;
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(37, 99, 235, 0.16), transparent 70%),
    radial-gradient(90% 110% at 90% -10%, rgba(34, 211, 238, 0.14), transparent 75%),
    radial-gradient(120% 120% at 20% 100%, rgba(99, 102, 241, 0.12), transparent 78%),
    linear-gradient(180deg, #f5f7fb 0%, #eef1f9 100%);
  filter: blur(26px) saturate(120%);
  opacity: 0.9;
  z-index: -1;
  transform: translateZ(0);
  animation: gradientShift 32s ease-in-out infinite alternate;
}

/* Dark theme gradient */
html[data-theme="dark"] #bg-gradient {
  background:
    radial-gradient(120% 120% at 0% 0%, rgba(59, 130, 246, 0.18), transparent 70%),
    radial-gradient(90% 90% at 88% -8%, rgba(14, 165, 233, 0.16), transparent 72%),
    radial-gradient(120% 120% at 18% 100%, rgba(129, 140, 248, 0.14), transparent 78%),
    linear-gradient(200deg, #0b1120 0%, #020617 100%);
  filter: blur(26px) saturate(120%);
}

@keyframes gradientShift {
  0% { transform: translate3d(0, 0, 0) scale(1.02); }
  50% { transform: translate3d(-1.5%, 1%, 0) scale(1.03); }
  100% { transform: translate3d(1.5%, -1%, 0) scale(1.04); }
}

/* Global scrollbar styling driven by tokens */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 8px; }
*::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }

/* Placeholder & caret polish */
::placeholder { color: var(--text-muted); opacity: .75; }
input, textarea { caret-color: var(--brand); }
input, textarea, select { accent-color: var(--brand); }
button, .icon-btn, .primary-btn, .chip, .send-btn {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Emotion Adaptive UI palettes (Beta) */
html[data-emotion="empathetic"] #bg-gradient {
  background:
    radial-gradient(60% 60% at 20% 10%, rgba(255, 210, 230, 0.88), transparent 60%),
    radial-gradient(58% 58% at 72% 12%, rgba(255, 180, 200, 0.85), transparent 60%),
    radial-gradient(48% 48% at 78% 78%, rgba(248, 232, 255, 0.85), transparent 65%),
    radial-gradient(60% 60% at 18% 78%, rgba(255, 236, 210, 0.9), transparent 60%),
    radial-gradient(40% 40% at 50% 50%, rgba(255, 255, 255, 0.65), transparent 70%);
}
html[data-emotion="empathetic"] {
  --brand: hsl(330 85% 62%);
  --accent: hsl(8 85% 60%);
}
html[data-emotion="cheerful"] #bg-gradient {
  background:
    radial-gradient(60% 60% at 20% 10%, rgba(255, 245, 200, 0.9), transparent 60%),
    radial-gradient(58% 58% at 72% 12%, rgba(255, 220, 170, 0.9), transparent 60%),
    radial-gradient(48% 48% at 78% 78%, rgba(220, 245, 255, 0.85), transparent 65%),
    radial-gradient(60% 60% at 18% 78%, rgba(255, 240, 200, 0.95), transparent 60%),
    radial-gradient(40% 40% at 50% 50%, rgba(255, 255, 255, 0.65), transparent 70%);
}
html[data-emotion="cheerful"] {
  --brand: hsl(35 90% 58%);
  --accent: hsl(15 88% 56%);
}
html[data-emotion="professional"] #bg-gradient {
  background:
    radial-gradient(60% 60% at 20% 10%, rgba(205, 225, 255, 0.88), transparent 60%),
    radial-gradient(58% 58% at 72% 12%, rgba(200, 215, 255, 0.85), transparent 60%),
    radial-gradient(48% 48% at 78% 78%, rgba(200, 240, 255, 0.85), transparent 65%),
    radial-gradient(60% 60% at 18% 78%, rgba(220, 235, 255, 0.9), transparent 60%),
    radial-gradient(40% 40% at 50% 50%, rgba(255, 255, 255, 0.6), transparent 70%);
}
html[data-emotion="professional"] {
  --brand: hsl(215 82% 56%);
  --accent: hsl(260 68% 62%);
}

/* 汎用ボタン */
.primary-btn {
  appearance: none;
  border: 1px solid var(--separator);
  background: var(--ios-card);
  color: var(--text-1);
  padding: 10px 14px;
  border-radius: var(--radius-2);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all var(--dur) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.primary-btn:hover { 
  background: white; 
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(30, 30, 60, 0.15);
}

.primary-btn:active {
  transform: translateY(0);
}

.primary-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(107, 107, 255, 0.1), transparent);
  transition: left 0.5s;
}

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

.icon-btn {
  appearance: none;
  border: 1px solid var(--separator);
  background: var(--ios-card);
  border-radius: var(--radius-1);
  padding: 8px;
  cursor: pointer;
  transition: all var(--dur) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.icon-btn:hover { background: var(--surface-strong); transform: translateY(-2px) scale(1.06); box-shadow: 0 8px 18px rgba(30,30,60,0.18); }

.icon-btn:active {
  transform: scale(0.95);
}

.icon-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(107, 107, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.icon-btn:hover::after {
  width: 100%;
  height: 100%;
}

.send-btn {
  appearance: none;
  border: none;
  border-radius: var(--radius-2);
  background: var(--grad-brand);
  color: white;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all var(--dur) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.send-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(107, 107, 255, 0.4);
}

.send-btn:active {
  transform: translateY(0);
}

.send-btn:disabled { 
  opacity: 0.6; 
  cursor: not-allowed; 
  transform: none;
}

.send-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

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

.chip {
  border: 1px solid var(--border);
  background: var(--surface-strong);
  border-radius: var(--radius-round);
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.chip:hover { 
  background: white; 
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(30, 30, 60, 0.12);
}

.chip:active {
  transform: translateY(0);
}

.chip::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(107, 107, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.chip:hover::after {
  width: 120%;
  height: 120%;
}

.toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 20, 35, 0.9);
  color: white;
  padding: 10px 14px;
  border-radius: var(--radius-2);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.toast.show { opacity: 1; }

/* トップバー */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  padding: calc(16px + env(safe-area-inset-top)) clamp(16px, 4vw, 32px) clamp(10px, 2vw, 18px);
  background: linear-gradient(180deg, rgba(245, 247, 252, 0.95), rgba(245, 247, 252, 0.6));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.topbar-inner {
  width: min(1200px, 94vw);
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 24px);
  padding: clamp(12px, 2vw, 18px) clamp(18px, 3.2vw, 28px);
  border-radius: 24px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
  position: relative;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.brand-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.topbar .brand {
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 24px);
  letter-spacing: 0.14px;
  transition: color 0.3s ease;
  cursor: pointer;
  color: var(--text-1);
}
.brand-tagline {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text-muted) 80%, var(--brand) 20%);
}
.topbar .brand:hover {
  color: var(--brand);
}
.topbar .controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(248, 250, 255, 0.85);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.55);
}
.model-label { font-size: 12px; opacity: 0.7; }

/* ===== Simple Mode: flatten the topbar / controls ===== */
html[data-simple="on"] .topbar {
  background: #121419;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: none;
}
html[data-simple="on"] .topbar .brand {
  -webkit-text-fill-color: unset;
  color: #e5e7eb;
  background: none;
  font-weight: 700;
}
html[data-simple="on"] .select-trigger,
html[data-simple="on"] .chip,
html[data-simple="on"] .icon-btn,
html[data-simple="on"] .primary-btn {
  box-shadow: none;
  background: rgba(32,36,44,0.8);
}
html[data-simple="on"] .select-dropdown { box-shadow: none; }
/* Custom Model Selector */
.model-selector-container {
  position: relative;
  min-width: 240px;
  width: 300px;
  max-width: 80vw;
}

/* Mobile-only controls */
.mobile-only { display: none; }
@media (max-width: 960px) {
  .mobile-only { display: inline-flex; align-items: center; justify-content: center; }
  .topbar-inner { flex-wrap: wrap; }
  .topbar-right { width: 100%; display: flex; justify-content: flex-end; }
}
@media (max-width: 780px) {
  .brand-tagline { display: none; }
  .topbar-inner { padding: 14px 18px; }
}
@media (max-width: 640px) {
  .topbar-inner { flex-direction: column; align-items: stretch; gap: 16px; }
  .topbar-left { width: 100%; justify-content: space-between; }
  .topbar-right { justify-content: space-between; }
  .topbar .controls { width: 100%; justify-content: space-between; flex-wrap: wrap; row-gap: 8px; }
  .model-selector-container { width: 100%; }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.custom-select {
  position: relative;
  font-size: 14px;
}

.select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-2);
  border: 1px solid var(--separator);
  background: var(--ios-card);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow);
  min-height: 44px;
}

.select-trigger:hover {
  background: white;
  transform: translateY(-1px);
  box-shadow: 0 12px 35px rgba(30, 30, 60, 0.15), 0 4px 12px rgba(30, 30, 60, 0.08);
}

.custom-select.open .select-trigger {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(107, 107, 255, 0.1);
}

.selected-model {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.model-name {
  font-weight: 500;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Selected meta (plan + caps) */
.selected-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  opacity: 0.9;
}
.plan-pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-round);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.plan-pill[data-plan="auto"] { background: linear-gradient(135deg, #eef2ff, #f5f3ff); color: #3730a3; }
.plan-pill[data-plan="free"] { background: linear-gradient(135deg, #f3f4f6, #e5e7eb); color: #374151; }
.plan-pill[data-plan="go"] { background: linear-gradient(135deg, #fff7ed, #ffedd5); color: #7c2d12; }
.plan-pill[data-plan="pro"] { background: linear-gradient(135deg, #ede9fe, #ddd6fe); color: #5b21b6; }
.plan-pill[data-plan="max"] { background: linear-gradient(135deg, #fee2e2, #fecaca); color: #991b1b; }
.plan-pill[data-plan="ultra"] { background: linear-gradient(135deg, #ffe4e6, #fed7e2); color: #9d174d; }

.plan-indicator {
  padding: 2px 8px;
  border-radius: var(--radius-round);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.plan-indicator[data-plan="guest"] {
  background: linear-gradient(135deg, #e5e7eb, #f3f4f6);
  color: #6b7280;
}

.plan-indicator[data-plan="plus"] {
  background: linear-gradient(135deg, #fef3c7, #fbbf24);
  color: #92400e;
}

.plan-indicator[data-plan="pro"] {
  background: linear-gradient(135deg, #ddd6fe, #8b5cf6);
  color: #5b21b6;
}

.plan-indicator[data-plan="pro+"] {
  background: linear-gradient(135deg, #fecaca, #ef4444);
  color: #991b1b;
}

.dropdown-arrow {
  transition: transform 0.2s ease;
  color: var(--text-1);
  opacity: 0.6;
}

.custom-select.open .dropdown-arrow {
  transform: rotate(180deg);
}

.select-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--surface-ultra);
  border: 1px solid var(--separator);
  border-radius: var(--radius-2);
  box-shadow: 0 20px 60px rgba(30, 30, 60, 0.2), 0 8px 20px rgba(30, 30, 60, 0.1);
  margin-top: 4px;
  max-height: min(480px, 70vh);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  backdrop-filter: blur(20px);
}

.select-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-tabs {
  display: grid;
  grid-auto-flow: column;
  gap: 6px;
  padding: 10px 12px 0;
}
.plan-tab {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  border-radius: var(--radius-round);
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.18s ease;
}
.plan-tab[aria-selected="true"] {
  background: white;
  color: var(--text-1);
  box-shadow: var(--shadow-sm);
}
.plan-tab:focus-visible { outline: none; box-shadow: var(--focus-ring); border-color: var(--focus-border); }

.dropdown-search {
  position: relative;
  padding: 12px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(248,249,255,0.8));
}

.dropdown-quick {
  display: flex;
  gap: 8px;
  padding: 10px 12px 0;
}
.chip.small { padding: 6px 10px; font-size: 12px; }
.filter-chip[aria-pressed="true"] { outline: 2px solid rgba(107,107,255,0.35); }

/* ===== Projects (Sidebar) ===== */
.project-nav { margin-top: 6px; }
.project-nav .proj-header { margin-bottom: 4px; }
.project-nav .proj-list { padding: 4px 0; }
.project-nav .proj-chips-row {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
}
.project-nav .proj-chips-row::-webkit-scrollbar { height: 8px; }
.project-nav .proj-chips-row::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 8px; }
.proj-chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.proj-chip .count {
  margin-left: 6px;
  font-weight: 700;
  font-size: 11px;
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.proj-chip:hover { background: white; box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.proj-chip.active { background: white; color: var(--text-1); box-shadow: var(--shadow-sm); }
.proj-chip:focus-visible { outline: none; box-shadow: var(--focus-ring); border-color: var(--focus-border); }

/* Simple Mode chips and headers */
html[data-simple="on"] .proj-chip { background: #1a1f26; border-color: rgba(255,255,255,0.08); box-shadow: none; }
html[data-simple="on"] .proj-chip:hover { background: #1f2430; box-shadow: none; transform: none; }
html[data-simple="on"] .proj-chip.active { background: #222736; color: #e5e7eb; box-shadow: none; }
html[data-simple="on"] .cl-group-header { opacity: .75; color: #cbd5e1; }

.search-input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--separator);
  border-radius: var(--radius-1);
  background: var(--ios-card);
  font-size: 13px;
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 2px rgba(107, 107, 255, 0.1);
}

.search-clear {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  appearance: none;
  border: none;
  background: transparent;
  color: #6b7280;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}
.search-clear:hover { color: #374151; }

.search-icon {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: #6b7280;
  pointer-events: none;
}

.model-group {
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.model-group:last-child {
  border-bottom: none;
}

.group-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px 8px;
  background: linear-gradient(135deg, rgba(248,249,255,0.6), rgba(255,255,255,0.4));
  font-weight: 600;
  font-size: 12px;
  color: var(--text-1);
  opacity: 0.8;
  border-bottom: 1px solid rgba(0,0,0,0.03);
  position: sticky;
  top: 0;
  z-index: 1;
}

.group-icon {
  font-size: 14px;
}

.group-label {
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.model-count {
  background: rgba(107, 107, 255, 0.1);
  color: var(--brand);
  padding: 2px 6px;
  border-radius: var(--radius-round);
  font-size: 10px;
  font-weight: 700;
}

.model-options {
  padding: 4px 0 8px;
}

.model-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  min-height: 44px;
  cursor: pointer;
  transition: all 0.15s ease;
  border-left: 3px solid transparent;
}

.model-option:hover {
  background: linear-gradient(135deg, rgba(107, 107, 255, 0.05), rgba(159, 84, 255, 0.05));
  border-left-color: var(--brand);
}

.model-option.selected {
  background: linear-gradient(135deg, rgba(107, 107, 255, 0.1), rgba(159, 84, 255, 0.1));
  border-left-color: var(--brand);
}
.model-option:focus-visible {
  outline: none;
  background: linear-gradient(135deg, rgba(107, 107, 255, 0.12), rgba(159, 84, 255, 0.12));
  border-left-color: var(--brand);
  box-shadow: inset 0 0 0 1px rgba(107,107,255,0.2);
}

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

.model-option .model-name {
  font-weight: 500;
  font-size: 13px;
  color: var(--text-1);
}

.model-option .model-plan {
  font-size: 11px;
  opacity: 0.6;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.model-tools { display: inline-flex; gap: 8px; align-items: center; }
.fav-btn { appearance: none; border: 1px solid var(--border); background: var(--surface); border-radius: 999px; width: 32px; height: 32px; display: grid; place-items: center; cursor: pointer; font-size: 16px; }
.fav-btn:hover { background: white; }
.caps { margin-left: 6px; opacity: .9; }
.cap { font-size: 12px; margin-right: 2px; }

.model-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.model-indicator.guest {
  background: linear-gradient(135deg, #9ca3af, #6b7280);
}

.model-indicator.plus {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.model-indicator.pro {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.model-indicator.pro\\+ {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}
.model-indicator.free { background: linear-gradient(135deg, #9ca3af, #6b7280); }
.model-indicator.go { background: linear-gradient(135deg, #fbbf24, #f59e0b); }
.model-indicator.max { background: linear-gradient(135deg, #ef4444, #f97316); }
.model-indicator.ultra { background: linear-gradient(135deg, #dc2626, #7c2d12); }
.plan-badge {
  border: 1px solid var(--separator);
  background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.5));
  padding: 4px 8px;
  border-radius: var(--radius-round);
  font-size: 12px;
  transition: all 0.2s ease;
  cursor: default;
  backdrop-filter: blur(var(--blur-xs));
  -webkit-backdrop-filter: blur(var(--blur-xs));
}

.plan-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(30, 30, 60, 0.15);
}

.results-meta {
  padding: 4px 16px 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.empty-results {
  padding: 16px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* Mobile sheet tweaks */
@media (max-width: 640px) {
  .select-dropdown {
    max-height: 82vh;
    border-radius: var(--radius-3);
  }
  .plan-tab { padding: 8px 12px; font-size: 13px; }
  .chip.small { padding: 8px 12px; font-size: 13px; }
  .model-option { padding: 12px 16px; min-height: 48px; }
  /* Reduce header crowding */
  #toneBadge, #studyBadge { display: none !important; }
}

/* Prevent background scroll when modal is open */
.modal { overscroll-behavior: contain; }

/* 法的リンク */
.legal {
  position: fixed;
  bottom: 8px;
  right: 12px;
  font-size: 12px;
  color: #333;
}
.legal a { color: inherit; text-decoration: none; }
.legal a:hover { text-decoration: underline; }

/* Confetti for Asobi achievements */
.confetti-root { position: relative; display: inline-block; }
.confetti-piece {
  position: relative;
  display: inline-block;
  width: 6px; height: 10px;
  margin: 0 1px;
  transform: translateY(-8px);
  animation: drop var(--d,800ms) ease forwards;
}
@keyframes drop {
  0% { transform: translateY(-10px) translateX(0) rotate(0deg); opacity: 0; }
  60% { opacity: 1; }
  100% { transform: translateY(16px) translateX(var(--x,0)) rotate(260deg); opacity: 0; }
}