:root {
  --bg: #f7f9fb;
  --grid: #cfd8e3;
  --text: #0f172a;
  --muted: #4b5563;
  --accent: #0ea5e9;
  --accent-2: #22c55e;
  --border-strong: #94a3b8;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.25), transparent 32%),
    radial-gradient(circle at 80% 25%, rgba(16, 185, 129, 0.2), transparent 30%),
    linear-gradient(135deg, #dbeafe 0%, #e0f2fe 40%, #e8f7ff 100%);
  color: var(--text);
  min-height: 100vh;
}

.desktop {
  min-height: 100vh;
  position: relative;
  padding: 32px 32px 96px;
  overflow: hidden;
}

.desktop::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.18), transparent 32%),
    radial-gradient(circle at 86% 60%, rgba(59, 130, 246, 0.16), transparent 35%);
  filter: blur(30px);
  opacity: 0.5;
  pointer-events: none;
}

.desktop__icons {
  position: absolute;
  top: 28px;
  left: 28px;
  display: grid;
  gap: 18px;
  z-index: 10;
}

.desktop__icon {
  width: 122px;
  height: 100px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.26);
  color: #0f172a;
  backdrop-filter: blur(6px);
  display: grid;
  place-items: center;
  gap: 10px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.12);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.desktop__icon small { font-size: 13px; }
.desktop__icon span { font-size: 1.6rem; }
.desktop__icon:hover { transform: translateY(-4px); box-shadow: 0 20px 42px rgba(0, 0, 0, 0.16); }
.desktop__icon--active { border-color: rgba(59, 130, 246, 0.45); box-shadow: 0 16px 38px rgba(59, 130, 246, 0.25); }

.window {
  background: linear-gradient(180deg, #fdfefe, #f7f9fb 40%, #eef2f7);
  width: min(1180px, 100%);
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  margin: 32px auto 0;
  z-index: 2;
}

.window--excel { position: relative; }

.titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.15), rgba(34, 197, 94, 0.15));
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  font-weight: 600;
}

.window--floating[data-app='chat'] .titlebar {
  background: #00b900;
  color: #ffffff;
}

.window--floating[data-app='chat'] .titlebar__left,
.window--floating[data-app='chat'] .titlebar__right,
.window--floating[data-app='chat'] .titlebar__meta,
.window--floating[data-app='chat'] strong {
  color: #ffffff;
}

.window--excel .titlebar {
  background: linear-gradient(90deg, #0b7a3c, #0d5f30);
  color: #e8f5ed;
}

.titlebar__left {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0f172a;
}

.window--excel .titlebar__left {
  color: #e8f5ed;
}

.titlebar__icon { font-size: 1.1rem; }

.window--excel .titlebar__left strong {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.titlebar__meta {
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.titlebar__right {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-weight: 600;
}

.window--excel .titlebar__right {
  color: #d1e8d9;
}

.autosave {
  padding: 4px 8px;
  background: rgba(14, 165, 233, 0.12);
  color: var(--accent);
  border-radius: 8px;
  border: 1px solid rgba(14, 165, 233, 0.3);
  box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.35);
  animation: pulse 3s infinite;
}

.traffic { display: inline-flex; gap: 4px; }
.traffic i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
  position: relative;
}
.traffic i:nth-child(1) { background: #f87171; }
.traffic i:nth-child(2) { background: #facc15; }
.traffic i:nth-child(3) { background: #22c55e; }

.ribbon {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fbff;
}

.ribbon__group { display: grid; gap: 8px; align-content: start; }
.ribbon__group--stretch { width: 100%; }
.ribbon__group--formula { min-width: 130px; justify-items: end; }
.ribbon__label { margin: 0; font-size: 13px; color: var(--muted); letter-spacing: 0.05em; }

.ribbon__buttons { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.ribbon__btn {
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: white;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.ribbon__btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(14, 165, 233, 0.25); }

.selector { display: grid; gap: 6px; align-items: center; }
.selector label { font-weight: 600; color: var(--muted); }
.selector__control {
  position: relative;
  display: grid;
  align-items: center;
}
.selector select {
  appearance: none;
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: linear-gradient(180deg, #fdfefe, #f0f4fa);
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  box-shadow: inset 0 1px 0 #fff, 0 10px 26px rgba(15, 23, 42, 0.08);
}
.selector__icon {
  position: absolute;
  right: 12px;
  color: var(--muted);
  font-size: 12px;
  pointer-events: none;
}

.formula {
  display: grid;
  grid-template-columns: 80px 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.02), rgba(14, 165, 233, 0.08));
  position: relative;
}

.formula__cell {
  background: #fff;
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 700;
  text-align: center;
  box-shadow: inset 0 1px 0 #fff;
}

.formula__input {
  background: #fff;
  border: 1px solid var(--grid);
  border-radius: 12px;
  padding: 12px 16px;
  font-family: 'Inter', 'Noto Sans JP', monospace;
  font-weight: 700;
  color: #0f172a;
  box-shadow: inset 0 1px 0 #fff, 0 10px 26px rgba(15, 23, 42, 0.06);
  position: relative;
  overflow: hidden;
}

.formula__trail {
  position: absolute;
  inset: auto 24px 12px auto;
  width: 120px;
  height: 6px;
  background: linear-gradient(90deg, rgba(14, 165, 233, 0), rgba(14, 165, 233, 0.35), rgba(14, 165, 233, 0));
  filter: blur(6px);
  animation: slide 2.4s infinite;
}

.sheet {
  --col-a: 0.85fr;
  --col-b: 1.55fr;
  --col-c: 1.1fr;
  padding: 16px;
  background: white;
  box-shadow: inset 0 1px 0 #fff, inset 0 -1px 0 #e2e8f0;
  position: relative;
}

.sheet__head {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: stretch;
  border: 1px solid var(--grid);
  border-radius: 12px 12px 0 0;
  overflow: hidden;
}

.sheet__corner {
  background: #eef2f7;
  display: grid;
  place-items: center;
  color: var(--muted);
  border-right: 1px solid var(--grid);
  font-weight: 700;
}

.sheet__columns {
  display: grid;
  grid-template-columns: var(--col-a) var(--col-b) var(--col-c);
  background: #f7fafc;
  color: var(--muted);
  font-weight: 700;
  text-align: center;
  border-bottom: 1px solid var(--grid);
}
.sheet__columns span { padding: 10px 0; border-right: 1px solid var(--grid); }
.sheet__columns span:last-child { border-right: none; }

.sheet__body {
  border: 1px solid var(--grid);
  border-top: none;
  border-radius: 0 0 12px 12px;
  overflow: hidden;
  position: relative;
  background-image: linear-gradient(#f8fafc 1px, transparent 1px),
    linear-gradient(90deg, #f8fafc 1px, transparent 1px);
  background-size: 100% 48px, 140px 100%;
  height: calc(60px * 6);
  overflow-y: auto;
}

.sheet__body.reloading::after {
  content: '更新中...';
  position: absolute;
  inset: 12px;
  border-radius: 10px;
  border: 1px dashed rgba(14, 165, 233, 0.5);
  background: rgba(14, 165, 233, 0.06);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.2em;
  display: grid;
  place-items: center;
  text-shadow: 0 1px 0 #fff;
}

.sheet__row {
  display: grid;
  grid-template-columns: 48px var(--col-a) var(--col-b) var(--col-c);
  align-items: stretch;
  min-height: 60px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--grid);
  position: relative;
  transform: translateY(12px);
  opacity: 0;
  animation: drop 0.4s ease forwards;
}
.sheet__row--placeholder .cell {
  color: var(--muted);
  opacity: 0.5;
  pointer-events: none;
}
.sheet__row:nth-child(odd) { background: rgba(249, 250, 251, 0.9); }

.row-label {
  display: grid;
  place-items: center;
  background: #f1f5f9;
  color: var(--muted);
  font-weight: 700;
  border-right: 1px solid var(--grid);
}

.cell {
  padding: 12px 14px;
  display: grid;
  align-content: center;
  color: var(--text);
  font-weight: 600;
  position: relative;
  cursor: pointer;
}

.cell strong { color: var(--text); }
.cell small { color: var(--muted); }

.cell::before {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 10px;
  background: linear-gradient(120deg, rgba(14, 165, 233, 0.08), rgba(14, 165, 233, 0));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.cell:hover::before { opacity: 1; }

.cell--selected {
  outline: 3px solid rgba(14, 165, 233, 0.35);
  border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(14, 165, 233, 0.45);
}

.cell--accent {
  color: #0f172a;
  font-weight: 700;
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.16), rgba(34, 197, 94, 0.16));
  border-left: 3px solid var(--accent);
}

.cell--note {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

.sheet__fill {
  position: absolute;
  width: 12px;
  height: 12px;
  background: #22c55e;
  border: 1px solid #15803d;
  border-radius: 2px;
  bottom: 40px;
  right: 40px;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.35);
  animation: fill 2.8s ease-in-out infinite;
}

.taskbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 64px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(226, 232, 240, 0.88));
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0 18px;
  gap: 16px;
  box-shadow: 0 -10px 30px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(10px);
  z-index: 999;
}

.taskbar__start {
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: white;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 800;
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
}

.taskbar__apps { display: inline-flex; gap: 10px; align-items: center; }
.taskbar__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(15, 23, 42, 0.05);
  font-size: 18px;
  cursor: pointer;
}
.taskbar__icon--active { border-color: rgba(14, 165, 233, 0.4); box-shadow: 0 10px 24px rgba(14, 165, 233, 0.28); }

.taskbar__tray { display: inline-flex; gap: 10px; align-items: center; color: var(--muted); font-weight: 700; }
.taskbar__time { font-variant-numeric: tabular-nums; }

.ticker {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  color: #e5e7eb;
  padding: 10px 14px;
  border-radius: 999px;
  display: flex;
  gap: 12px;
  font-family: 'Inter', monospace;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.2);
  animation: slideUp 0.8s ease;
}

.ticker span { white-space: nowrap; }

.window--floating {
  position: absolute;
  width: 360px;
  z-index: 1;
  margin: 0;
}

.window--floating[data-app='navigator'] {
  top: 120px;
  left: 32px;
  width: 960px;
  height: 750px;
}

.window--floating[data-app='files'] {
  top: 210px;
  left: 50%;
  transform: translateX(-50%);
  width: 840px;
  min-height: 520px;
}

.window--floating[data-app='coupon'] {
  top: 200px;
  right: 140px;
  width: 420px;
}

.window--floating[data-app='chat'] {
  top: 120px;
  right: 250px;
  min-height: 520px;
  width: 540px;
}

.floating__body {
  padding: 18px;
  display: grid;
  gap: 12px;
  background: linear-gradient(180deg, rgba(14, 165, 233, 0.04), rgba(255, 255, 255, 0.9));
}

.floating__body--navigator {
  background: linear-gradient(180deg, #f8fbff, #eef2f7);
}

.mini-browser {
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
}

.mini-browser__toolbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.06), rgba(14, 165, 233, 0.1));
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.mini-browser__traffic {
  display: inline-flex;
  gap: 6px;
}

.mini-browser__traffic i {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.mini-browser__traffic i:nth-child(1) { background: #ef4444; }
.mini-browser__traffic i:nth-child(2) { background: #f59e0b; }
.mini-browser__traffic i:nth-child(3) { background: #22c55e; }

.mini-browser__address {
  padding: 10px 12px;
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  font-weight: 700;
  color: #0f172a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  font-family: 'Inter', 'Noto Sans JP', system-ui;
}

.mini-browser__actions {
  display: inline-flex;
  gap: 8px;
  color: #475569;
  font-weight: 800;
}

.mini-browser__content {
  padding: 120px 28px 36px;
}

.navigator-search {
  display: grid;
  gap: 40px;
  justify-items: center;
  text-align: center;
  font-family: 'Product Sans', 'Google Sans', 'Poppins', 'Inter', 'Segoe UI', system-ui, sans-serif;
}

.navigator-logo {
  font-size: clamp(46px, 5vw, 72px);
  font-weight: 700;
  letter-spacing: -1px;
}

.mendooo-letter { display: inline-block; }
.mendooo-letter--blue { color: #4285f4; }
.mendooo-letter--red { color: #ea4335; }
.mendooo-letter--yellow { color: #fbbc05; }
.mendooo-letter--green { color: #34a853; }

.navigator-search__field {
  width: min(540px, 100%);
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  padding: 10px 14px;
  border-radius: 999px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.08);
}

.navigator-search__field input {
  border: none;
  outline: none;
  font-size: 16px;
  font-family: 'Product Sans', 'Google Sans', 'Poppins', 'Inter', 'Segoe UI', system-ui, sans-serif;
}

.navigator-search__mic {
  color: #ef4444;
  font-size: 18px;
}

.navigator-search__actions {
  display: inline-flex;
  gap: 12px;
}

.navigator-search__actions button {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #f8fafc;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.06);
}

.navigator-search__actions button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

.navigator-search__hint {
  margin: 0;
  color: #6b7280;
  font-weight: 600;
}

.mini-browser__content--site {
  background: linear-gradient(135deg, #f4f7fb, #f1f5f9);
  display: grid;
  gap: 22px;
  font-family: 'Inter', 'Noto Sans JP', system-ui, sans-serif;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.site-logo {
  font-weight: 900;
  color: #0f172a;
  letter-spacing: 0.02em;
}

.site-nav { display: inline-flex; gap: 14px; color: #475569; font-weight: 700; }

.site-cta {
  border: none;
  background: linear-gradient(90deg, #0ea5e9, #22c55e);
  color: white;
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(14, 165, 233, 0.3);
}

.site-ghost {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: white;
  color: #0f172a;
  padding: 10px 16px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}

.site-hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 18px;
  align-items: center;
}

.site-kicker {
  color: #0ea5e9;
  font-weight: 800;
  margin: 0 0 6px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-hero h2 {
  margin: 0;
  font-size: 28px;
  color: #0f172a;
}

.site-lead {
  margin: 8px 0 16px;
  color: #475569;
  font-weight: 600;
  line-height: 1.6;
}

.site-actions { display: inline-flex; gap: 10px; align-items: center; }

.site-card {
  background: linear-gradient(135deg, #0ea5e9, #22c55e);
  color: white;
  padding: 18px;
  border-radius: 16px;
  box-shadow: 0 14px 30px rgba(14, 165, 233, 0.3);
}

.site-card__eyebrow { margin: 0; font-weight: 800; letter-spacing: 0.08em; }
.site-card__headline { margin: 6px 0; font-size: 24px; font-weight: 900; }
.site-card__body { margin: 0; font-weight: 600; }

.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.site-tile {
  background: #ffffff;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.site-tile__title { margin: 0 0 6px; font-weight: 800; color: #0f172a; }
.site-tile__body { margin: 0; color: #475569; font-weight: 600; line-height: 1.5; }

.window--floating[data-app='chat'] .floating__body {
  background: #7494c0;
}

.floating__body--chat {
  min-height: 480px;
  grid-template-rows: auto 1fr;
  align-content: start;
}

.floating__body--explorer {
  padding: 0;
  background: linear-gradient(180deg, #f8fafc, #edf1f7);
}

.explorer {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100%;
  background: #fdfefe;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.explorer__toolbar {
  display: grid;
  grid-template-columns: auto 1fr 260px;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: linear-gradient(180deg, #f6f8fb, #e9edf5);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.explorer__nav {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.explorer__btn {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: white;
  border-radius: 10px;
  padding: 8px 12px;
  font-weight: 700;
  color: #0f172a;
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.06);
}

.explorer__btn--round { border-radius: 50%; width: 36px; height: 36px; padding: 0; }
.explorer__btn--ghost {
  background: linear-gradient(180deg, #ffffff, #f4f6fb);
  border-color: rgba(15, 23, 42, 0.08);
}

.explorer__divider {
  width: 1px;
  height: 28px;
  background: rgba(15, 23, 42, 0.08);
  border-radius: 999px;
}

.explorer__address {
  display: grid;
  gap: 4px;
  align-content: start;
}

.explorer__label {
  font-size: 12px;
  color: #4b5563;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.explorer__path {
  padding: 10px 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 10px;
  background: white;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.explorer__search {
  display: block;
  width: 100%;
}

.explorer__search input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  padding: 10px 12px;
  background: white;
  font-weight: 600;
  color: #0f172a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.explorer__body {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 360px;
}

.explorer__sidebar {
  padding: 16px 14px;
  background: #f6f8fb;
  border-right: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 10px;
}

.explorer__section {
  margin: 0;
  font-size: 12px;
  color: #475569;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.explorer__sidebar ul {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 4px;
  color: #0f172a;
  font-weight: 500;
}

.explorer__content {
  padding: 18px;
  display: grid;
  gap: 12px;
  background: #ffffff;
}

.explorer__content-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.explorer__path-small {
  font-weight: 800;
  color: #0f172a;
}

.explorer__view-actions { display: inline-flex; gap: 8px; }

.explorer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 14px;
}

.explorer__tile {
  border-radius: 12px;
  padding: 14px;
  background: linear-gradient(180deg, #f8fafc, #eef2f7);
  border: 1px solid rgba(15, 23, 42, 0.06);
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.explorer__folder {
  position: relative;
  width: 62px;
  height: 44px;
  margin: 0 auto;
  background: linear-gradient(180deg, #fbe3ac 0%, #e8b96f 100%);
  border: 1px solid #d4984a;
  border-radius: 10px 10px 12px 12px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.explorer__folder::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 8px;
  width: 34px;
  height: 14px;
  background: linear-gradient(180deg, #fde7b9 0%, #edc17d 100%);
  border: 1px solid #d4984a;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.explorer__tile p { margin: 8px 0 0; font-weight: 800; color: #0f172a; }

.explorer__status {
  padding: 10px 14px;
  background: #f6f8fb;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  font-weight: 700;
  color: #475569;
}

.floating__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.floating__card {
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 12px;
  padding: 12px;
  background: white;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.floating__chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 6px 2px 2px;
  height: 100%;
}

.floating__body--coupon {
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7)),
    linear-gradient(180deg, #fef9e7, #fff6d7);
  gap: 8px;
  text-align: center;
}

.coupon__eyebrow {
  margin: 0;
  color: #b45309;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.coupon__headline {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: #78350f;
}

.coupon__code {
  font-family: 'Inter', monospace;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 14px 16px;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(248, 180, 0, 0.12), rgba(248, 113, 113, 0.06));
  border: 1px dashed #f59e0b;
  color: #92400e;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8), 0 10px 24px rgba(248, 180, 0, 0.2);
}

.coupon__note {
  margin: 0;
  color: #854d0e;
  font-weight: 700;
  line-height: 1.6;
}

.coupon__note span {
  font-weight: 900;
  color: #b45309;
}

.floating__bubble {
  max-width: 86%;
  padding: 12px 14px;
  border-radius: 16px;
  font-weight: 600;
  background: rgba(15, 23, 42, 0.04);
  position: relative;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.floating__bubble::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  bottom: 6px;
  background: inherit;
  transform: rotate(45deg);
}

.floating__bubble--me {
  align-self: flex-end;
  background: #8de055;
  border: 1px solid #73ba46;
  border-top-right-radius: 4px;
}

.floating__bubble--me::after {
  right: -5px;
  border-right: 1px solid #73ba46;
  border-bottom: 1px solid #73ba46;
}

.floating__bubble--you {
  align-self: flex-start;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-top-left-radius: 4px;
}

.floating__bubble--you::after {
  left: -5px;
  border-left: 1px solid rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.titlebar__right { gap: 12px; }
.titlebar__close {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: white;
  border-radius: 10px;
  padding: 8px 10px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
}

.is-hidden { display: none; }

.window--floating.active { box-shadow: 0 16px 40px rgba(15, 23, 42, 0.16); }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.35); }
  70% { box-shadow: 0 0 0 10px rgba(14, 165, 233, 0); }
  100% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0); }
}

@keyframes slide {
  0% { transform: translateX(-20px); opacity: 0; }
  40% { transform: translateX(10px); opacity: 1; }
  100% { transform: translateX(120px); opacity: 0; }
}

@keyframes drop {
  0% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fill {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.25); }
  50% { transform: scale(1.1); box-shadow: 0 0 0 12px rgba(34, 197, 94, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

@media (max-width: 900px) {
  .desktop { padding: 18px 18px 96px; }
  .ribbon { grid-template-columns: 1fr; }
  .ribbon__group--formula { justify-items: start; }
  .formula { grid-template-columns: 60px 1fr; }
  .sheet__row { grid-template-columns: 38px repeat(3, minmax(0, 1fr)); }
}