:root {
  color-scheme: light;
  --ink: #1d2522;
  --muted: #64706b;
  --line: #d9e2dc;
  --paper: #fbf8ef;
  --surface: #ffffff;
  --mint: #dff4e8;
  --green: #227a55;
  --green-deep: #14543a;
  --amber: #f2b84b;
  --coral: #ef715e;
  --blue: #3c6fbb;
  --shadow: 0 18px 40px rgba(29, 37, 34, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Segoe UI", sans-serif;
  line-height: 1.6;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 10px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid rgba(29, 37, 34, 0.08);
  background: rgba(251, 248, 239, 0.92);
  backdrop-filter: blur(14px);
}

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.home-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--green-deep);
  color: #fff;
}

.top-actions,
.preset-actions,
.add-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

main {
  padding: 28px clamp(14px, 3vw, 36px) 48px;
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.intro-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: clamp(18px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(135deg, #ffffff 0%, #f8f0dd 54%, #dff4e8 100%);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 16px;
}

.lead {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-weight: 650;
}

.preview-art {
  width: clamp(130px, 18vw, 220px);
  height: auto;
  border-radius: 10px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.tab {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.tab.is-active {
  background: var(--green-deep);
  color: #fff;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.control-panel,
.plan-panel,
.record-form,
.record-board,
.presentation-card,
.script-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(29, 37, 34, 0.08);
}

.control-panel,
.record-form {
  position: sticky;
  top: 82px;
  display: grid;
  gap: 15px;
  padding: 18px;
}

.plan-panel,
.record-board,
.presentation-card,
.script-card {
  padding: clamp(18px, 3vw, 28px);
}

label {
  display: grid;
  gap: 7px;
  color: #34413b;
  font-size: 13px;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid #cbd8d0;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

input[type="range"] {
  min-height: 24px;
  padding: 0;
  accent-color: var(--green);
}

.range-value {
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 850;
}

.form-row {
  display: grid;
  gap: 12px;
}

.form-row.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.chip,
.delete-btn {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 13px;
  font-weight: 850;
}

.primary-btn {
  background: var(--green-deep);
  color: #fff;
}

.secondary-btn {
  background: var(--mint);
  color: var(--green-deep);
  border-color: #b8dfc8;
}

.ghost-btn {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.ghost-btn.danger {
  color: #9b3328;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 16px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 86px;
  min-height: 30px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--green-deep);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.status-pill.warn {
  background: #fff1c9;
  color: #8b5f00;
}

.question-block {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

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

.chip {
  min-height: 34px;
  background: #f4f7f5;
  color: #34413b;
  border-color: var(--line);
  font-size: 12px;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.split-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.split-panels > section {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfdfb;
}

.material-list,
.safety-list,
.record-list {
  display: grid;
  gap: 8px;
}

.check-item,
.record-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  padding: 10px;
  border: 1px solid #dde7e0;
  border-radius: 8px;
  background: #fff;
}

.check-item input {
  width: 18px;
  min-height: 18px;
  margin-top: 3px;
  accent-color: var(--green);
}

.check-item span {
  overflow-wrap: anywhere;
}

.delete-btn {
  min-width: 34px;
  min-height: 34px;
  padding: 0;
  background: #fff5f2;
  color: #9b3328;
  border-color: #ffd0c8;
}

.add-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-top: 10px;
}

.timeline {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: day;
}

.timeline li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  padding: 12px;
  border-left: 5px solid var(--amber);
  border-radius: 8px;
  background: #fffaf0;
}

.timeline time {
  color: #8b5f00;
  font-size: 12px;
  font-weight: 900;
}

.timeline strong {
  display: block;
  margin-bottom: 2px;
}

.timeline p {
  margin-bottom: 0;
  color: var(--muted);
}

.record-layout,
.presentation-layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.chart {
  display: flex;
  align-items: end;
  gap: 8px;
  min-height: 180px;
  margin-bottom: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: repeating-linear-gradient(0deg, #fff, #fff 33px, #edf3ef 34px);
}

.chart-empty {
  align-self: center;
  width: 100%;
  color: var(--muted);
  text-align: center;
  font-weight: 750;
}

.bar {
  position: relative;
  flex: 1;
  min-width: 22px;
  border-radius: 7px 7px 3px 3px;
  background: linear-gradient(180deg, var(--blue), var(--green));
}

.bar span {
  position: absolute;
  right: 0;
  bottom: calc(100% + 4px);
  left: 0;
  font-size: 11px;
  font-weight: 850;
  text-align: center;
}

.record-item {
  grid-template-columns: minmax(80px, 120px) minmax(0, 1fr) auto;
}

.record-item p {
  margin-bottom: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.record-value {
  display: inline-flex;
  margin-bottom: 4px;
  color: var(--green-deep);
  font-weight: 900;
}

.slide-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
}

.slide-list li {
  padding: 12px 12px 12px 4px;
  border-bottom: 1px solid var(--line);
}

.slide-list strong {
  display: block;
}

.slide-list p,
.script-box p {
  margin-bottom: 0;
  color: var(--muted);
}

.script-box {
  display: grid;
  gap: 12px;
}

.script-line {
  padding: 14px;
  border-left: 5px solid var(--coral);
  border-radius: 8px;
  background: #fff6f4;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  max-width: min(360px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .intro-strip,
  .workspace,
  .record-layout,
  .presentation-layout {
    grid-template-columns: 1fr;
  }

  .control-panel,
  .record-form {
    position: static;
  }

  .preview-art {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-row.two,
  .research-grid,
  .split-panels {
    grid-template-columns: 1fr;
  }

  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .tabs {
    grid-template-columns: 1fr;
  }

  .timeline li,
  .record-item {
    grid-template-columns: 1fr;
  }
}

@media print {
  body {
    background: #fff;
  }

  .topbar,
  .tabs,
  .control-panel,
  .toast,
  .preview-art,
  .preset-actions,
  .add-row,
  .delete-btn {
    display: none !important;
  }

  main {
    padding: 0;
  }

  .intro-strip,
  .plan-panel,
  .record-board,
  .presentation-card,
  .script-card {
    box-shadow: none;
    break-inside: avoid;
  }

  .tab-panel {
    display: block !important;
    margin-bottom: 20px;
  }
}