:root {
  color-scheme: light;
  --navy: #17324d;
  --ink: #1f2b3d;
  --muted: #617086;
  --paper: #f3f6fa;
  --surface: #ffffff;
  --line: #dce3ec;
  --teal: #168b82;
  --blue: #2b6db5;
  --violet: #7a52bd;
  --orange: #cf7415;
  --red: #cf514d;
  --green: #3d8449;
  --shadow: 0 12px 32px rgba(30, 54, 78, 0.11);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
}

* { box-sizing: border-box; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html { background: var(--paper); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(43, 109, 181, 0.09), transparent 34rem),
    var(--paper);
}

button, input, textarea, select, a { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

.shell {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem calc(3rem + env(safe-area-inset-bottom));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: .9rem;
  color: white;
  background: var(--navy);
  box-shadow: var(--shadow);
  font-size: 1.35rem;
}

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

.brand h1 {
  margin: 0;
  font-size: clamp(1.35rem, 5vw, 2rem);
  line-height: 1.05;
}

.brand p {
  margin: .2rem 0 0;
  color: var(--muted);
  font-size: .86rem;
}

.install-button,
.chat-button,
.tests-button,
.primary-button,
.secondary-button,
.back-button {
  min-height: 2.75rem;
  border-radius: .85rem;
  border: 0;
  padding: .72rem 1rem;
  font-weight: 750;
  cursor: pointer;
  text-decoration: none;
}

.install-button,
.primary-button,
.chat-button,
.tests-button {
  color: white;
  background: var(--navy);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: .55rem;
}

.chat-button {
  min-height: 2.75rem;
  border-radius: .85rem;
  padding: .72rem 1rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.tests-button {
  min-height: 2.75rem;
  border-radius: .85rem;
  padding: .72rem 1rem;
  color: white;
  background: var(--teal);
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.secondary-button,
.back-button {
  color: var(--navy);
  background: #e6edf5;
}

.install-button[hidden] { display: none; }

.intro-panel {
  padding: 1.1rem;
  border-radius: 1.25rem;
  background: var(--navy);
  color: white;
  box-shadow: var(--shadow);
}

.intro-panel h2 {
  margin-bottom: .45rem;
  font-size: 1.15rem;
}

.intro-panel p {
  margin-bottom: 0;
  color: #d6e0ec;
  line-height: 1.45;
}

.search-wrap { margin: 1rem 0 .8rem; }

.search {
  width: 100%;
  min-height: 3.2rem;
  padding: .8rem 1rem .8rem 2.9rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  color: var(--ink);
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23617086' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-4-4'/%3E%3C/svg%3E") no-repeat .95rem center / 1.2rem;
  box-shadow: 0 5px 18px rgba(30, 54, 78, .06);
}

.search:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(43, 109, 181, .35);
  outline-offset: 2px;
}

.filters {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding: .15rem 0 .55rem;
  scrollbar-width: none;
}

.filters::-webkit-scrollbar { display: none; }

.filter {
  flex: 0 0 auto;
  min-height: 2.6rem;
  padding: .55rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface);
  font-weight: 700;
  cursor: pointer;
}

.filter.is-active {
  border-color: var(--navy);
  color: white;
  background: var(--navy);
}

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: .75rem 0;
  color: var(--muted);
  font-size: .9rem;
}

.section-title {
  grid-column: 1 / -1;
  margin: 14px 0 2px;
  font-size: 1rem;
  color: #17324d;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
}

.material-card {
  position: relative;
  display: grid;
  grid-template-columns: 3.15rem 1fr auto;
  align-items: center;
  gap: .9rem;
  min-height: 7.6rem;
  padding: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  color: inherit;
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(30, 54, 78, .07);
  text-decoration: none;
}

.material-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: .34rem;
  background: var(--card-color, var(--blue));
}

.material-card:active { transform: scale(.992); }

.card-icon {
  display: grid;
  place-items: center;
  width: 3.15rem;
  height: 3.15rem;
  border-radius: 1rem;
  color: white;
  background: var(--card-color, var(--blue));
  font-weight: 850;
  letter-spacing: -.03em;
}

.card-copy h3 {
  margin-bottom: .28rem;
  font-size: 1.03rem;
  line-height: 1.2;
}

.card-copy p {
  margin: 0;
  color: var(--muted);
  font-size: .87rem;
  line-height: 1.35;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .55rem;
}

.tag {
  padding: .22rem .48rem;
  border-radius: 999px;
  color: var(--card-color, var(--blue));
  background: color-mix(in srgb, var(--card-color, var(--blue)) 11%, white);
  font-size: .72rem;
  font-weight: 750;
}

.arrow {
  color: var(--card-color, var(--blue));
  font-size: 1.4rem;
  font-weight: 800;
}

.empty {
  padding: 2rem 1rem;
  border: 1px dashed var(--line);
  border-radius: 1rem;
  text-align: center;
  color: var(--muted);
  background: rgba(255,255,255,.65);
}

.detail-head {
  display: grid;
  align-items: stretch;
  gap: .7rem;
  margin-bottom: 1rem;
}

.detail-head .back-button { justify-self: start; }

.detail-title {
  flex: 1;
  padding: 1rem;
  border-radius: 1.1rem;
  color: white;
  background: var(--detail-color, var(--blue));
  box-shadow: var(--shadow);
}

.detail-title .eyebrow {
  margin-bottom: .35rem;
  opacity: .82;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.detail-title h1 {
  margin-bottom: .3rem;
  font-size: clamp(1.45rem, 6vw, 2.25rem);
}

.detail-title p { margin: 0; line-height: 1.4; }

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin: 1rem 0;
}

.content-panel {
  margin-top: .9rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(30, 54, 78, .06);
}

.content-panel h2 {
  margin-bottom: .8rem;
  font-size: 1.18rem;
}

.content-panel p,
.content-panel li { line-height: 1.55; }

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 0;
  list-style: none;
}

.topic-list li {
  padding: .4rem .65rem;
  border-radius: .65rem;
  color: var(--detail-color, var(--blue));
  background: color-mix(in srgb, var(--detail-color, var(--blue)) 10%, white);
  font-weight: 700;
  font-size: .88rem;
}

.mobile-pdf-note {
  padding: 1.2rem;
  border-radius: 1rem;
  background: #e9f0f8;
  color: var(--navy);
  line-height: 1.5;
}

.pdf-frame {
  display: none;
  width: 100%;
  height: 75vh;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: white;
}

.interval-table {
  display: grid;
  gap: .6rem;
}

.interval-row {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  gap: .8rem;
  padding: .8rem;
  border-radius: .85rem;
  background: #f5f8fc;
}

.interval-symbol {
  display: grid;
  place-items: center;
  min-height: 2.7rem;
  border-radius: .7rem;
  color: white;
  background: var(--violet);
  font-size: 1.05rem;
  font-weight: 850;
}

.number-line {
  width: 100%;
  height: 4rem;
  margin-top: .4rem;
}

details {
  margin-top: .7rem;
  border: 1px solid var(--line);
  border-radius: .8rem;
  background: #f8fafc;
}

summary {
  padding: .8rem;
  font-weight: 750;
  cursor: pointer;
}

details p { padding: 0 .8rem .8rem; margin: 0; }

.construction-image {
  display: block;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  border-radius: .9rem;
  border: 1px solid var(--line);
  background: white;
}

.step-grid {
  display: grid;
  gap: .7rem;
}

.step-card {
  padding: .9rem;
  border-left: .35rem solid var(--detail-color, var(--blue));
  border-radius: .75rem;
  background: #f6f8fb;
}

.step-card h3 { margin-bottom: .4rem; font-size: 1rem; }
.step-card p { margin: 0; color: var(--muted); }

.memory-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .7rem;
  margin-top: 1rem;
}

.memory-strip span {
  padding: .85rem;
  border-radius: 14px;
  background: color-mix(in srgb, var(--detail-color) 10%, white);
  border: 1px solid color-mix(in srgb, var(--detail-color) 22%, white);
  font-weight: 750;
  text-align: center;
}

.offline-note {
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: .82rem;
  text-align: center;
}

.chat-head,
.tests-head { align-items: stretch; }
.chat-title { background: linear-gradient(135deg, #17324d, #315b84); }

.chat-panel {
  max-width: 820px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.chat-loading,
.chat-empty {
  padding: 2.5rem 1rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}

.chat-gate {
  max-width: 430px;
  margin: 0 auto;
  padding: 2rem 1.2rem 2.3rem;
  text-align: center;
}

.chat-lock { font-size: 2.4rem; }
.chat-gate h2 { margin: .7rem 0 .45rem; }
.chat-gate > p { color: var(--muted); line-height: 1.5; }

.chat-login-form {
  display: grid;
  gap: .65rem;
  margin-top: 1.2rem;
  text-align: left;
}

.chat-login-form label,
.chat-toolbar label { font-weight: 750; }

.chat-login-form input,
.chat-toolbar select,
.chat-composer textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: .8rem;
  color: var(--ink);
  background: white;
}

.chat-login-form input,
.chat-toolbar select { min-height: 2.75rem; padding: .6rem .75rem; }

.chat-toolbar {
  display: grid;
  grid-template-columns: auto minmax(8rem, 13rem) auto;
  align-items: center;
  gap: .6rem;
  padding: .8rem;
  border-bottom: 1px solid var(--line);
  background: #f7f9fc;
}

.compact-button { min-height: 2.75rem; padding: .55rem .8rem; }

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: .7rem;
  height: min(55vh, 520px);
  min-height: 330px;
  overflow-y: auto;
  padding: 1rem;
  background: linear-gradient(180deg, #eef3f8 0%, #f7f9fc 100%);
}

.chat-message {
  align-self: flex-start;
  width: min(86%, 560px);
  padding: .75rem .85rem;
  border: 1px solid var(--line);
  border-radius: 1rem 1rem 1rem .25rem;
  background: white;
  box-shadow: 0 5px 14px rgba(30, 54, 78, .07);
}

.chat-message.is-own {
  align-self: flex-end;
  border-color: #b7d9d4;
  border-radius: 1rem 1rem .25rem 1rem;
  background: #e6f4f1;
}

.chat-message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: .76rem;
}

.chat-message-meta strong { color: var(--navy); }
.chat-message p { margin: .4rem 0 0; line-height: 1.45; overflow-wrap: anywhere; }

.chat-file {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-top: .6rem;
  padding: .6rem;
  border-radius: .7rem;
  color: var(--navy);
  background: rgba(255,255,255,.8);
  text-decoration: none;
}

.chat-file small { display: block; margin-top: .1rem; color: var(--muted); }

.chat-composer {
  display: grid;
  gap: .65rem;
  padding: .85rem;
  border-top: 1px solid var(--line);
  background: white;
}

.chat-composer textarea {
  min-height: 5.5rem;
  padding: .75rem;
  resize: vertical;
}

.chat-attachment-row,
.chat-send-row {
  display: flex;
  align-items: center;
  gap: .7rem;
}

.chat-attachment-row input { position: absolute; width: 1px; height: 1px; opacity: 0; }

.file-button {
  flex: 0 0 auto;
  padding: .6rem .75rem;
  border-radius: .7rem;
  color: var(--navy);
  background: #e6edf5;
  font-weight: 750;
  cursor: pointer;
}

.file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: .84rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-send-row { justify-content: space-between; }
.form-status { margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.35; }
.is-error { color: #a02d38 !important; }

.tests-title { background: linear-gradient(135deg, #126f68, #23998f); }

.tests-panel {
  max-width: 920px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.tests-section + .tests-section { border-top: 1px solid var(--line); }
.tests-list-head p { margin: .25rem 0 0; color: var(--muted); font-size: .84rem; }
.paper-result-section { background: #f8fbfc; }

.test-catalog {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
  padding: .7rem 1rem 1rem;
}

.test-assignment-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: white;
  box-shadow: 0 5px 14px rgba(30, 54, 78, .06);
}

.test-assignment-card h3 { margin: .4rem 0; }
.test-assignment-card p { flex: 1; margin: 0 0 .8rem; color: var(--muted); line-height: 1.45; }
.assignment-meta { display: flex; gap: .7rem; margin-bottom: .8rem; color: var(--muted); font-size: .78rem; }

.test-runner {
  margin: .4rem 1rem 1rem;
  padding: 1rem;
  border: 2px solid #b8dcd8;
  border-radius: 1rem;
  background: #f3fbfa;
}

.test-runner[hidden] { display: none; }
.test-runner-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.test-runner-head h2 { margin: .25rem 0 0; font-size: 1.25rem; }
.interactive-test-form { display: grid; gap: .8rem; margin-top: 1rem; }

.test-question {
  margin: 0;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: .85rem;
  background: white;
}

.test-question legend { padding: 0 .25rem; color: var(--navy); font-weight: 800; line-height: 1.4; }
.test-question legend span { color: var(--teal); }
.test-choices { display: grid; gap: .45rem; margin-top: .55rem; }

.test-choices label {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .6rem .7rem;
  border: 1px solid var(--line);
  border-radius: .7rem;
  background: #f8fafc;
  cursor: pointer;
}

.test-choices input { width: 1.1rem; height: 1.1rem; accent-color: var(--teal); }
.test-submit-row { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-top: .4rem; }

.test-result-summary { text-align: center; }
.test-result-summary h2 { margin: .3rem 0 .8rem; }
.score-circle { display: grid; place-items: center; width: 6.5rem; height: 6.5rem; margin: 0 auto .7rem; border-radius: 50%; color: white; background: var(--teal); font-size: 2rem; font-weight: 900; }
.score-circle small { margin-top: -1.4rem; font-size: .9rem; }
.test-breakdown { display: grid; gap: .65rem; margin-top: 1rem; }
.answer-review { padding: .8rem; border-left: .35rem solid; border-radius: .75rem; background: white; }
.answer-review.is-correct { border-color: #3d8449; }
.answer-review.is-wrong { border-color: #cf514d; }
.answer-review h3 { margin: 0 0 .4rem; font-size: .95rem; }
.answer-review p { margin: .2rem 0; }
.answer-review small { display: block; margin-top: .45rem; color: var(--muted); line-height: 1.4; }

.test-form {
  display: grid;
  gap: .9rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  background: #f8fbfc;
}

.test-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.test-form label {
  display: grid;
  gap: .35rem;
  color: var(--navy);
  font-size: .86rem;
  font-weight: 750;
}

.test-form input,
.test-form select,
.test-form textarea {
  width: 100%;
  min-height: 2.7rem;
  padding: .65rem .7rem;
  border: 1px solid var(--line);
  border-radius: .75rem;
  color: var(--ink);
  background: white;
  font-weight: 400;
}

.test-form textarea { resize: vertical; }
.test-note { grid-column: 1 / -1; }

.tests-list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem .4rem;
}

.tests-list-head h2 { margin: 0; font-size: 1.15rem; }

.tests-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
  padding: .7rem 1rem 1rem;
}

.test-result-card {
  padding: .9rem;
  border: 1px solid var(--line);
  border-left: .35rem solid var(--teal);
  border-radius: .9rem;
  background: white;
  box-shadow: 0 5px 14px rgba(30, 54, 78, .06);
}

.test-result-top,
.test-result-foot,
.test-score-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .45rem;
}

.test-result-top { justify-content: space-between; color: var(--muted); font-size: .78rem; }
.test-subject { color: var(--teal); font-weight: 800; }
.test-result-card h3 { margin: .5rem 0; font-size: 1.02rem; }
.test-result-card p { margin: .6rem 0; color: var(--muted); line-height: 1.45; }

.grade-badge,
.score-badge {
  padding: .3rem .55rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 800;
}

.grade-badge { color: white; background: var(--teal); }
.score-badge { color: var(--navy); background: #e6edf5; }
.test-result-foot { justify-content: space-between; margin-top: .65rem; color: var(--muted); font-size: .78rem; }
.test-file { color: var(--blue); font-weight: 750; text-decoration: none; }

@media (min-width: 720px) {
  .shell { padding-inline: 1.5rem; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .intro-panel { padding: 1.35rem 1.5rem; }
  .mobile-pdf-note { display: none; }
  .pdf-frame { display: block; }
}

@media (max-width: 620px) {
  .topbar { align-items: flex-start; }
  .top-actions { flex-direction: column; align-items: stretch; }
  .result-row { align-items: flex-start; flex-direction: column; gap: .3rem; }
  .chat-button { padding-inline: .75rem; }
  .chat-toolbar { grid-template-columns: auto 1fr; }
  .chat-toolbar .compact-button { grid-column: 1 / -1; }
  .chat-attachment-row,
  .chat-send-row { align-items: stretch; flex-direction: column; }
  .file-button { text-align: center; }
  .chat-send-row .primary-button { width: 100%; }
  .test-form-grid,
  .tests-list,
  .test-catalog { grid-template-columns: 1fr; }
  .test-submit-row { align-items: stretch; flex-direction: column; }
  .test-submit-row .primary-button { width: 100%; }
}

@media (min-width: 1020px) {
  .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: no-preference) {
  .material-card, button { transition: transform .16s ease, box-shadow .16s ease; }
  .material-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
}

/* v14: osobní přihlášení, číselné osy v testech */
.chat-toolbar { display: flex; flex-wrap: wrap; grid-template-columns: none; }
.chat-toolbar > span { flex: 1 1 auto; }
.axis-scroll { overflow-x: auto; margin: .5rem 0 .2rem; padding-bottom: .2rem; -webkit-overflow-scrolling: touch; }
.test-axis { display: block; max-width: none; height: auto; }
.answer-review .axis-scroll { margin-top: .4rem; }
.test-choices.is-graphic { grid-template-columns: 1fr; }
.graphic-choice { align-items: flex-start !important; }
.graphic-choice > span { display: grid; gap: .2rem; min-width: 0; }
fieldset.test-question { min-width: 0; }
.test-runner, .interactive-test-form, .test-question, .test-choices, .test-choices label { min-width: 0; max-width: 100%; }
.test-choices label > span { min-width: 0; overflow-wrap: anywhere; }
.axis-scroll { max-width: 100%; }
.test-choices label > span { font-size: 1.12rem; letter-spacing: .03em; }
.test-choices.is-graphic label > span { font-size: 1rem; letter-spacing: 0; }
.graphic-choice { display: block !important; padding: .5rem .6rem !important; }
.graphic-choice .gc-head { display: flex; align-items: center; gap: .55rem; }
.test-choices.is-graphic label > span.gc-head { font-size: 1rem; }
.test-axis { overflow: visible; }
.chat-attachment-row { position: relative; }
.chat-attachment-row input[type="file"] { position: absolute; width: 1px !important; height: 1px !important; opacity: 0; pointer-events: none; }
/* Ostré závorky ⟨ ⟩ jako špičaté znaky (odlišitelné od kulatých) */
.ang { display: inline-block; box-sizing: border-box; width: .62em; height: .62em; border: 0 solid currentColor; vertical-align: .04em; }
.ang-l { border-left-width: .13em; border-bottom-width: .13em; transform: rotate(45deg) scale(1); margin: 0 .12em 0 .2em; }
.ang-r { border-right-width: .13em; border-top-width: .13em; transform: rotate(45deg); margin: 0 .2em 0 0; }
.interval-symbol { display: flex; flex-wrap: nowrap; align-items: center; justify-content: center; white-space: nowrap; }
.interval-symbol .ang { width: .5em; height: .5em; margin: 0 .12em; }
.interval-symbol .ang-l { margin-left: .22em; }

.video-title {
  margin: 18px 0 6px;
  font-size: 1rem;
}

.video-list {
  margin: 0;
  padding-left: 18px;
}

.video-list a {
  color: #2668b2;
  overflow-wrap: anywhere;
}