:root {
  --bg: #0b1020;
  --panel: #131a2f;
  --panel-soft: #1b2440;
  --text: #eef2ff;
  --muted: #aeb7d0;
  --line: #2d385e;
  --accent: #7c9cff;
  --accent-strong: #95adff;
  --success: #13341f;
  --success-text: #8ae0aa;
  --error: #3d1a1e;
  --error-text: #ffb1b8;
  --processing: #3a2f12;
  --processing-text: #ffd98c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family:
    "Noto Sans JP",
    "Hiragino Sans",
    "Yu Gothic UI",
    "Yu Gothic",
    "Meiryo",
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: radial-gradient(circle at top, #182241, var(--bg) 38%);
  color: var(--text);
}
button,
input,
select,
textarea {
  font: inherit;
}

a { color: inherit; text-decoration: none; }
.container { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(11, 16, 32, 0.78);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-weight: 800; letter-spacing: 0.02em; }
.nav { display: flex; gap: 14px; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--text); }
.main-content { padding: 32px 0 56px; }
.hero, .page-header { margin-bottom: 24px; }
.eyebrow { color: var(--accent-strong); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
h1, h2 { margin: 0 0 10px; }
h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.05; }
h2 { font-size: 22px; }
.muted { color: var(--muted); line-height: 1.7; }
.grid { display: grid; gap: 20px; }
.two-col { grid-template-columns: 1.1fr 0.9fr; }
.two-col-detail { grid-template-columns: 0.95fr 1.05fr; }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.18);
}
.stack-lg, .stack-md { display: grid; }
.stack-lg { gap: 18px; }
.stack-md { gap: 12px; }
.field { display: grid; gap: 8px; }
.field span { font-weight: 700; }
.field-help {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}
.backend-picker {
  margin: 0;
  padding: 0;
  border: 0;
}
.backend-picker legend {
  margin-bottom: 10px;
  font-weight: 700;
}
.backend-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
}
.backend-option + .backend-option {
  margin-top: 10px;
}
.backend-option input {
  margin-top: 3px;
}
.backend-copy {
  display: grid;
  gap: 4px;
}
.backend-copy small {
  color: var(--muted);
  line-height: 1.5;
}
input[type="text"], input[type="file"] {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--text);
  border-radius: 12px;
  padding: 14px 16px;
}
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 16px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--panel-soft); color: var(--text); font-weight: 700;
}
.button.primary { background: linear-gradient(180deg, var(--accent), #5879e8); border-color: transparent; }
.button.subtle { background: transparent; }
.button:disabled { opacity: 0.48; cursor: not-allowed; }
.button:hover { opacity: 0.95; }
.list-item {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 16px; border: 1px solid var(--line);
  border-radius: 14px; background: rgba(255,255,255,0.02);
}
.meta { color: var(--muted); font-size: 14px; margin-top: 4px; }
.badge {
  display: inline-flex; align-items: center; padding: 6px 10px;
  border-radius: 999px; font-size: 12px; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase;
}
.badge-uploaded { background: #22314b; color: #aaccff; }
.badge-processing { background: var(--processing); color: var(--processing-text); }
.badge-done { background: var(--success); color: var(--success-text); }
.badge-error { background: var(--error); color: var(--error-text); }
.flash-stack { display: grid; gap: 10px; margin-bottom: 18px; }
.flash { padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); }
.flash-success { background: rgba(25, 70, 42, 0.55); color: #b7f2ca; }
.flash-error { background: rgba(91, 28, 38, 0.55); color: #ffd1d7; }
.inline-feedback {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.inline-feedback.is-error { background: rgba(91, 28, 38, 0.55); color: #ffd1d7; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--line); }
thead th { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; }
.details-grid {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 10px 14px;
  margin: 0;
}
.details-grid dt { color: var(--muted); }
.details-grid dd { margin: 0; word-break: break-word; }
.compact-details {
  grid-template-columns: 100px 1fr;
}
.transcript {
  white-space: pre-wrap; line-height: 1.8; margin: 0;
  border: 1px solid var(--line); background: rgba(255,255,255,0.02);
  padding: 16px; border-radius: 14px; min-height: 340px;
}
.detail-shell {
  display: grid;
  gap: 20px;
}
.summary-layout {
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.85fr);
  align-items: start;
}
.summary-main-card {
  background:
    radial-gradient(circle at top right, rgba(149, 173, 255, 0.24), transparent 36%),
    linear-gradient(180deg, rgba(124, 156, 255, 0.12), rgba(255,255,255,0.02));
}
.summary-side-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
}
.summary-head {
  align-items: flex-start;
}
.priority-board {
  background:
    radial-gradient(circle at top right, rgba(255, 177, 116, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
}
.priority-board-head {
  align-items: flex-start;
}
.priority-note {
  margin: 0;
}
.priority-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.priority-item {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(8, 13, 28, 0.38);
}
.priority-item-test,
.priority-item-quiz {
  border-color: rgba(255, 123, 147, 0.26);
  background: linear-gradient(180deg, rgba(255, 123, 147, 0.1), rgba(255,255,255,0.02));
}
.priority-item-assignment,
.priority-item-deadline {
  border-color: rgba(255, 217, 140, 0.26);
  background: linear-gradient(180deg, rgba(255, 217, 140, 0.1), rgba(255,255,255,0.02));
}
.priority-item-announcement {
  border-color: rgba(149, 173, 255, 0.24);
}
.priority-item-top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.priority-item h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
}
.priority-item p {
  margin: 0;
  line-height: 1.75;
}
.priority-kind {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.priority-kind-test,
.priority-kind-quiz {
  background: rgba(255, 123, 147, 0.14);
  color: #ffc6d1;
}
.priority-kind-assignment,
.priority-kind-deadline {
  background: rgba(255, 217, 140, 0.16);
  color: #ffe1a7;
}
.priority-kind-announcement {
  background: rgba(149, 173, 255, 0.14);
  color: #d9e4ff;
}
.priority-explanation {
  display: grid;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}
.priority-explanation summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--accent-strong);
  list-style: none;
}
.priority-explanation summary::-webkit-details-marker {
  display: none;
}
.hero-summary {
  padding: 20px;
  border-radius: 16px;
  border: 1px solid rgba(149, 173, 255, 0.28);
  background: rgba(10, 17, 34, 0.36);
}
.summary-sections {
  display: grid;
  gap: 16px;
}
.summary-lead {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(149, 173, 255, 0.24);
  background: linear-gradient(180deg, rgba(149, 173, 255, 0.14), rgba(255,255,255,0.03));
}
.summary-lead p {
  margin: 0;
  line-height: 1.85;
}
.summary-block {
  display: grid;
  gap: 10px;
}
.summary-block h3 {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-strong);
}
.summary-block-body {
  display: grid;
  gap: 8px;
  line-height: 1.8;
}
.summary-block-body div {
  position: relative;
  padding-left: 18px;
}
.summary-block-body div::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(149, 173, 255, 0.7);
}
.summary-copy {
  white-space: pre-wrap;
  line-height: 1.8;
  font-size: clamp(16px, 2vw, 18px);
}
.summary-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}
.stat-card {
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}
.stat-card strong {
  font-size: 24px;
  line-height: 1;
}
.stat-label {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.insight-box {
  border: 1px solid rgba(124, 156, 255, 0.24);
  background: rgba(124, 156, 255, 0.08);
  border-radius: 14px;
  padding: 16px;
}
.summary-text {
  margin-top: 8px;
  white-space: pre-wrap;
  line-height: 1.7;
}
.keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.keyword-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(124, 156, 255, 0.28);
  background: rgba(17, 25, 49, 0.55);
  color: #d9e4ff;
  font-size: 13px;
}
.transcript-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
}
.transcript-clean {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
  padding: 18px;
  border-radius: 14px;
}
.transcript-clean p {
  margin: 0 0 12px;
  line-height: 1.9;
}
.transcript-clean p:last-child {
  margin-bottom: 0;
}
.transcript-inferred {
  padding: 0 4px;
  border-radius: 6px;
  background: rgba(255, 177, 116, 0.16);
  color: #ffd7b0;
}
.transcript-disclosure {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
  padding: 14px 16px;
}
.transcript-disclosure summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--accent-strong);
  list-style: none;
}
.transcript-disclosure[open] summary {
  margin-bottom: 6px;
}
.transcript-disclosure summary::-webkit-details-marker {
  display: none;
}
.lecture-list {
  display: grid;
  gap: 14px;
}
.lecture-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,0.025);
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}
.lecture-card:hover {
  transform: translateY(-1px);
  border-color: rgba(149, 173, 255, 0.4);
  background: rgba(149, 173, 255, 0.06);
}
.lecture-card-head {
  align-items: flex-start;
}
.lecture-id {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
}
.lecture-title {
  font-size: 18px;
  line-height: 1.4;
}
.summary-preview,
.recent-summary {
  color: #dfe6ff;
  line-height: 1.7;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.summary-preview-muted {
  color: var(--muted);
}
.lecture-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: var(--muted);
  font-size: 14px;
}
.mini-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(149, 173, 255, 0.2);
  background: rgba(149, 173, 255, 0.08);
  color: #d9e4ff;
  font-size: 12px;
  font-weight: 700;
}
.mini-pill-inferred {
  border-color: rgba(255, 177, 116, 0.28);
  background: rgba(255, 177, 116, 0.1);
  color: #ffd7b0;
}
.mini-pill-warn {
  border-color: rgba(255, 217, 140, 0.3);
  background: rgba(255, 217, 140, 0.12);
  color: #ffd98c;
}
.mini-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.recent-item {
  align-items: flex-start;
}
.recent-copy {
  display: grid;
  gap: 6px;
}
.recent-summary {
  font-size: 14px;
  color: var(--muted);
}
.progress-panel {
  background:
    radial-gradient(circle at top right, rgba(255, 217, 140, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
}
.progress-summary {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(255, 217, 140, 0.18);
  background: rgba(255, 255, 255, 0.02);
}
.progress-copy {
  align-items: baseline;
}
.progress-copy strong {
  font-size: 18px;
}
.progress-bar {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}
.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ffd98c, #ffae70);
  transition: width 180ms ease;
}
.progress-note {
  margin: 0;
}
.progress-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.progress-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.progress-step {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
}
.progress-step p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.5;
}
.progress-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #5d678d;
}
.progress-step.is-active {
  border-color: rgba(255, 217, 140, 0.38);
  background: rgba(255, 217, 140, 0.08);
}
.progress-step.is-active .progress-dot {
  background: #ffd98c;
  box-shadow: 0 0 0 6px rgba(255, 217, 140, 0.12);
}
.progress-step.is-complete {
  border-color: rgba(138, 224, 170, 0.26);
  background: rgba(138, 224, 170, 0.06);
}
.progress-step.is-complete .progress-dot {
  background: #8ae0aa;
}
.empty-state, .error-box {
  border: 1px dashed var(--line); border-radius: 14px; padding: 18px;
  background: rgba(255,255,255,0.015);
}
.recorder {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 16px;
  border: 1px dashed rgba(149, 173, 255, 0.32);
  background: linear-gradient(180deg, rgba(149, 173, 255, 0.08), rgba(255,255,255,0.015));
}
.recorder.is-disabled { opacity: 0.7; }
.recorder-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.section-label {
  margin: 0 0 6px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.status-text {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.status-text::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #7181b6;
}
.recorder[data-state="recording"] .status-text::before {
  background: #ff7f98;
  animation: pulse 1.2s infinite;
}
.recorder[data-state="ready"] .status-text::before { background: #8ae0aa; }
.recorder[data-state="manual-file"] .status-text::before { background: #aaccff; }
.recorder[data-state="processing"] .status-text::before { background: #ffd98c; }
.recorder[data-state="recording"] {
  border-color: rgba(255, 127, 152, 0.45);
  box-shadow: inset 0 0 0 1px rgba(255, 127, 152, 0.12);
}
.recorder[data-state="ready"] {
  border-color: rgba(138, 224, 170, 0.4);
  box-shadow: inset 0 0 0 1px rgba(138, 224, 170, 0.1);
}
.recorder[data-state="manual-file"] {
  border-color: rgba(124, 156, 255, 0.45);
}
.recorder-copy,
.support-note {
  margin: 0;
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.timer {
  min-width: 78px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(0,0,0,0.18);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.preview-player { width: 100%; }
@media (max-width: 860px) {
  .two-col, .two-col-detail { grid-template-columns: 1fr; }
  .row-between { align-items: flex-start; flex-direction: column; }
  .summary-layout,
  .summary-stat-grid,
  .progress-steps { grid-template-columns: 1fr; }
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 127, 152, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(255, 127, 152, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 127, 152, 0); }
}