@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap";
:root {
  --ink:#152c39;
  --muted:#607078;
  --navy:#102936;
  --teal:#166963;
  --mint:#b5eee0;
  --coral:#ffad87;
  --paper:#f7f8f3;
  --line:#dce3dd;
  --white:#fff;
  --shadow:0 16px 48px #1236290b;
  --radius:18px;
  font-family:
    "DM Sans",
    system-ui,
    sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  scroll-padding-top: 100px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input,
select,
textarea {
  font: inherit;
}
a {
  color: var(--teal);
  text-underline-offset: 4px;
}
button,
a,
input,
select,
textarea {
  touch-action: manipulation;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: default;
  opacity: .55;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid #e07a48;
  outline-offset: 4px;
}
h1,
h2,
h3,
h4 {
  font-family:
    Manrope,
    system-ui,
    sans-serif;
  line-height: 1.2;
}
p {
  line-height: 1.7;
}
h1 {
  letter-spacing: -.045em;
}
h2 {
  letter-spacing: -.035em;
}
em {
  font-style: normal;
  color: var(--teal);
}
[hidden] {
  display: none !important;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  background: white;
  padding: 16px;
  z-index: 100;
}
.skip-link:focus {
  top: 12px;
}
.ai-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  padding: 16px max(24px, calc((100vw - 1392px)/2));
  background: #f7f8f3f5;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  min-height: 74px;
}
.ai-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -.03em;
  font-size: 21px;
}
.ai-brand span {
  display: grid;
  gap: 2px;
}
.ai-brand b {
  font-size: 9px;
  letter-spacing: .14em;
  font-weight: 600;
  color: var(--muted);
}
.ai-header nav {
  display: flex;
  gap: 25px;
}
.ai-header nav a {
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.ai-header nav a[aria-current=page] {
  color: var(--teal);
  text-decoration: underline;
}
.avatar-link {
  display: block;
  flex: none;
}
.avatar-link img {
  border-radius: 50%;
  object-fit: cover;
  display: block;
}
.ai-hero {
  background: var(--navy);
  color: #f3faf5;
  position: relative;
  overflow: hidden;
  padding: 76px max(28px, calc((100vw - 1280px)/2)) 0;
  background-image:
    radial-gradient(
      ellipse at 83% 35%,
      #22746b50,
      transparent 52%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 70px;
  align-items: center;
}
.eyebrow {
  font-size: 11px !important;
  text-transform: uppercase;
  letter-spacing: .17em;
  font-weight: 700;
  color: var(--teal);
  margin: 0 0 18px;
}
.eyebrow.light {
  color: var(--mint);
}
.ai-hero h1 {
  font-size: clamp(40px, 4.4vw, 68px);
  margin: 0 0 24px;
  line-height: 1.06;
  letter-spacing: -.055em;
}
.ai-hero h1 em {
  color: var(--mint);
}
.hero-lede {
  font-size: 17px;
  line-height: 1.75;
  max-width: 560px;
  color: #c0d2d4;
}
.hero-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin: 30px 0;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 15px 22px;
  min-height: 48px;
  font-size: 14px;
  font-weight: 700;
  background: var(--teal);
  color: white;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px #10293620;
}
.button.coral {
  background: var(--coral);
  color: #272e2b;
}
.button.ghost {
  background: transparent;
  border-color: #ffffff35;
  color: white;
}
.button.secondary {
  background: white;
  color: var(--teal);
  border-color: var(--line);
}
.hero-byline {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 12px;
  color: #dce9e7;
  margin: 26px 0 40px;
}
.hero-byline img {
  border-radius: 50%;
  object-fit: cover;
}
.hero-byline small {
  color: #9cb5b9;
  font-size: 11px;
  line-height: 1.8;
}
.architecture-art {
  border: 1px solid #9dddd047;
  border-radius: 18px;
  padding: 24px;
  background:
    linear-gradient(
      155deg,
      #244654,
      #123441);
  transform: rotate(1deg);
  box-shadow: 15px 25px 0 #061c282b, 0 30px 90px #0003;
  position: relative;
}
.architecture-art:before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(#b5eee016 .8px, transparent .8px);
  background-size: 16px 16px;
  pointer-events: none;
}
.art-top {
  display: flex;
  gap: 8px;
  align-items: center;
  letter-spacing: .14em;
  color: #aecac9;
  font-size: 8px;
}
.art-top > span:last-child {
  margin-left: auto;
}
.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #b5eee0;
  box-shadow: 0 0 12px #b5eee0;
}
.art-request {
  text-align: center;
  padding: 35px 0;
}
.art-request span {
  font-size: 9px;
  letter-spacing: .18em;
  color: #a5c9c8;
  display: block;
  margin-bottom: 12px;
}
.art-request strong {
  font-family: Manrope;
  font-size: 30px;
  letter-spacing: -.03em;
  line-height: 1.2;
}
.art-flow {
  display: flex;
  align-items: center;
  gap: 9px;
  position: relative;
}
.art-flow > div {
  flex: 1;
  border: 1px solid #719e9d55;
  background: #16323f;
  border-radius: 9px;
  padding: 17px 12px;
  display: grid;
  gap: 10px;
  min-width: 0;
}
.art-flow i {
  font: 10px monospace;
  color: #a5d4ca;
  font-style: normal;
}
.art-flow b {
  font-size: 13px;
}
.art-flow small {
  font-size: 9px;
  color: #9cb9ba;
}
.art-flow > span {
  color: #ffad87;
}
.art-loop {
  margin: 14px 25px 20px;
  border-bottom: 1px dashed #91c3b755;
  border-left: 1px dashed #91c3b755;
  border-right: 1px dashed #91c3b755;
  text-align: center;
  font-size: 11px;
  color: #acd3c8;
  padding-bottom: 12px;
  display: flex;
  justify-content: space-between;
}
.art-chips {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.art-chips span {
  padding: 6px 10px;
  background: #a4e1ce10;
  color: #c2e2d9;
  border-radius: 5px;
  font-size: 10px;
}
.art-bottom {
  font-size: 8px;
  letter-spacing: .14em;
  color: #7a9b9e;
  text-align: center;
  padding-top: 28px;
}
.hero-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 48px;
  border-top: 1px solid #ffffff21;
  padding: 25px 0 28px;
  gap: 25px;
}
.hero-numbers > div {
  display: grid;
  gap: 5px;
  border-right: 1px solid #ffffff21;
}
.hero-numbers > div:last-child {
  border: 0;
}
.hero-numbers strong {
  font: 600 28px Manrope;
  letter-spacing: -.04em;
}
.hero-numbers span {
  font-size: 12px;
  color: #aac0c2;
}
.ai-section {
  max-width: 1336px;
  padding: 64px 28px;
  margin: auto;
}
.journey {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr 1fr;
  gap: 30px;
  border-bottom: 1px solid var(--line);
  padding-top: 60px;
  padding-bottom: 60px;
}
.journey h2 {
  font-size: 25px;
  margin: 0;
}
.journey-step {
  text-decoration: none;
  border-left: 1px solid var(--line);
  padding-left: 28px;
  color: var(--ink);
}
.journey-step > span {
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--teal);
}
.journey-step h3 {
  font-size: 20px;
  margin: 16px 0 10px;
}
.journey-step p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 25px;
  margin-bottom: 30px;
}
.section-head h2 {
  font-size: 36px;
  margin: 0;
}
.text-link {
  font-size: 13px;
  font-weight: 600;
}
.library-filters {
  margin: 30px 0 18px;
}
.library-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 15px;
  flex-wrap: wrap;
}
.library-tabs button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
}
.library-tabs button[aria-pressed=true] {
  background: var(--ink);
  color: white;
}
.library-tabs span {
  opacity: .65;
  padding-left: 4px;
}
.filter-row {
  display: flex;
  gap: 16px;
  align-items: end;
  flex-wrap: wrap;
  margin-top: 22px;
}
.filter-row label {
  flex: 1;
  min-width: 180px;
}
.filter-row label:first-child {
  flex: 2;
}
label {
  font-size: 12px;
  font-weight: 600;
  display: grid;
  gap: 8px;
}
input,
select,
textarea {
  padding: 12px 14px;
  border: 1px solid #cfdad4;
  border-radius: 7px;
  color: var(--ink);
  background: white;
  min-width: 0;
}
textarea {
  resize: vertical;
  width: 100%;
  line-height: 1.6;
}
.muted {
  font-size: 13px;
  color: var(--muted);
}
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.lesson-card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 23px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .15s, border-color .15s;
}
.lesson-card:hover {
  transform: translateY(-3px);
  border-color: #75aaa0;
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.tag {
  font-size: 9px;
  letter-spacing: .13em;
  font-weight: 600;
  border-radius: 5px;
  padding: 6px 9px;
  background: #e8f1eb;
  color: #297361;
}
.lesson-card[data-kind=interview] .tag {
  background: #fff0e7;
  color: #9b5033;
}
.lesson-card[data-kind=practice] .tag {
  background: #eef0fc;
  color: #5d589c;
}
.save-lesson {
  background: none;
  border: 0;
  font-size: 23px;
  color: #477269;
  padding: 0 4px;
}
.card-domain {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #768782;
}
.lesson-card h3 {
  font-size: 20px;
  margin: 10px 0 12px;
  letter-spacing: -.025em;
}
.lesson-card h3 a {
  color: var(--ink);
  text-decoration: none;
}
.lesson-card p {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 28px;
}
.card-bottom {
  margin-top: auto;
  border-top: 1px solid #edf0ea;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  font-size: 11px;
  color: var(--muted);
  gap: 10px;
}
.card-bottom > a {
  font-size: 20px;
  text-decoration: none;
}
.card-bottom [data-completed] {
  color: var(--teal);
}
#continue-reading {
  background: #e6f1e9;
  border: 1px solid #c9e0d5;
  border-radius: 9px;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 13px;
}
.mentor-band {
  margin: 20px auto 64px;
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 30px;
  background: #edf0e5;
}
.mentor-band > img {
  border-radius: 100%;
  width: 100px;
  height: 100px;
  object-fit: cover;
}
.mentor-band h2 {
  font-size: 27px;
  margin: 0;
}
.mentor-band p:not(.eyebrow) {
  font-size: 14px;
  margin: 12px 0 0;
  max-width: 640px;
}
.mentor-band > a {
  margin-left: auto;
  white-space: nowrap;
}
.ai-footer {
  border-top: 1px solid var(--line);
  padding: 36px max(28px, calc((100vw - 1280px)/2));
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}
.ai-footer .ai-brand {
  display: grid;
  gap: 5px;
}
.ai-footer nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 12px;
}
.ai-footer nav a {
  color: var(--muted);
  text-decoration: none;
}
.ai-footer p {
  width: 100%;
  font-size: 11px;
  color: var(--muted);
  margin: 0;
}
#ai-toast {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: #183b36;
  color: white;
  border-radius: 9px;
  padding: 15px 20px;
  z-index: 70;
  max-width: min(420px, 90vw);
  box-shadow: 0 8px 30px #0003;
  display: none;
}
#ai-toast.visible {
  display: block;
}
.lesson-layout {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 64px;
  max-width: 1336px;
  margin: auto;
  padding: 0 28px;
}
.lesson-outline {
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 88px;
  align-self: start;
  max-height: calc(100svh - 105px);
  overflow: hidden;
  padding: 26px 14px 28px 0;
  scrollbar-width: thin;
}
.lesson-outline .back-link {
  font-size: 12px;
  display: block;
  margin-bottom: 18px;
  text-decoration: none;
}
.lesson-outline .eyebrow {
  font-size: 9px !important;
}
.outline-title {
  margin: 0 0 20px;
  font: 700 17px/1.45 Manrope, sans-serif;
  overflow-wrap: anywhere;
}
.outline-title a { color: var(--ink); text-decoration: none; }
.outline-title a:hover { text-decoration: underline; }
.lesson-outline > :not(nav) { flex-shrink: 0; }
.lesson-outline nav {
  display: grid;
  border-left: 1px solid var(--line);
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}
.lesson-outline nav a {
  padding: 9px 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -1px;
  font-weight: 400;
}
.lesson-outline nav a[aria-current=true] {
  color: var(--teal);
  border-left-color: var(--teal);
  background: #e7eee7;
  border-radius: 0 6px 6px 0;
}
.outline-tools {
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 20px;
  font-size: 12px;
}
.outline-tools a {
  text-decoration: none;
}
.lesson-main {
  min-width: 0;
  max-width: 920px;
  padding: 32px 0 64px;
}
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 35px;
}
.breadcrumbs a {
  text-decoration: none;
  color: var(--muted);
}
.lesson-heading h1 {
  font-size: clamp(32px, 3.5vw, 48px);
  margin: 0 0 24px;
}
.lesson-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 25px;
  margin-bottom: 35px;
}
.lesson-meta button {
  font-size: 11px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 7px 9px;
  color: var(--teal);
  background: white;
}
.lesson-meta button[aria-pressed=true] {
  background: #deeee4;
}
.prose {
  font-size: 16px;
  line-height: 1.8;
  color: #263d43;
  overflow-wrap: anywhere;
}
.prose p {
  line-height: 1.85;
}
.katex {
  overflow-wrap: normal;
  text-indent: 0;
}
.katex-display {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: .25em 0;
}
@media print {
  .katex-display {
    overflow: visible;
    break-inside: avoid;
  }
}
.prose h2 {
  font-size: 27px;
  padding-top: 24px;
  margin: 42px 0 22px;
  scroll-margin-top: 90px;
  border-top: 1px solid var(--line);
  color: var(--ink);
}
.prose h3 {
  font-size: 21px;
  margin-top: 32px;
  scroll-margin-top: 90px;
}
.prose h4 {
  font-size: 17px;
  scroll-margin-top: 90px;
}
.prose ol,
.prose ul {
  padding-left: 26px;
}
.prose li {
  padding-left: 4px;
  margin: 10px 0;
}
.prose strong {
  font-weight: 700;
  color: #183937;
}
.prose blockquote {
  margin: 25px 0;
  border-left: 3px solid #70a691;
  padding: 4px 22px;
  background: #e9f0e8;
  border-radius: 0 10px 10px 0;
  color: #37574c;
}
.prose img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  background: white;
}
.prose pre {
  --code-comment: #9fb2bd;
  --code-keyword: #ff7b72;
  --code-string: #a5d6ff;
  --code-number: #79c0ff;
  --code-title: #d2a8ff;
  --code-built-in: #ffa657;
  --code-meta: #7ee787;
  overflow-x: auto;
  white-space: pre;
  background: #152d3b;
  color: #dfece9;
  padding: 22px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.7;
}
.prose code {
  font-size: .88em;
  background: #e5ece7;
  padding: 2px 5px;
  border-radius: 4px;
}
.prose pre code {
  background: none;
  padding: 0;
  color: inherit;
}
.prose .hljs :is(.hljs-comment, .hljs-quote) {
  color: var(--code-comment);
  font-style: italic;
}
.prose .hljs :is(.hljs-keyword, .hljs-selector-tag, .hljs-doctag, .hljs-deletion) {
  color: var(--code-keyword);
}
.prose .hljs :is(.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute) {
  color: var(--code-string);
}
.prose .hljs :is(.hljs-number, .hljs-literal, .hljs-attr) {
  color: var(--code-number);
}
.prose .hljs :is(.hljs-title, .hljs-section, .hljs-selector-id, .hljs-selector-class) {
  color: var(--code-title);
}
.prose .hljs :is(.hljs-built_in, .hljs-type, .hljs-symbol, .hljs-bullet, .hljs-variable) {
  color: var(--code-built-in);
}
.prose .hljs :is(.hljs-meta, .hljs-template-tag, .hljs-template-variable) {
  color: var(--code-meta);
}
.prose .hljs .hljs-emphasis {
  font-style: italic;
}
.prose .hljs .hljs-strong {
  font-weight: 700;
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 9px;
  margin: 22px 0;
}
.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
  line-height: 1.65;
  background: white;
}
.prose th {
  background: #1e5149;
  color: white;
  text-align: left;
  font-weight: 600;
}
.prose td,
.prose th {
  padding: 15px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  min-width: 110px;
}
.prose tr:nth-child(even) td {
  background: #f1f5ec;
}
.prose td strong {
  color: inherit;
}
.ai-diagram {
  margin: 28px 0;
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  overflow: hidden;
}
.diagram-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .07em;
}
.diagram-actions button,
.diagram-controls button {
  background: white;
  border: 1px solid var(--line);
  padding: 7px 10px;
  border-radius: 5px;
  font-size: 11px;
  color: var(--teal);
}
.mermaid {
  /* Let inline diagrams grow vertically; scroll only when their width requires it. */
  overflow-x: auto;
  text-align: center;
  padding: 20px 0;
}
.mermaid svg {
  max-width: 100%;
  height: auto;
}
.diagram-text {
  font-size: 11px;
  color: var(--muted);
}
.diagram-text summary {
  cursor: pointer;
}
.diagram-text pre {
  max-height: 300px;
  overflow: auto;
}
.lesson-notes {
  margin: 45px 0;
  padding: 24px;
  background: #edf2e8;
  border-radius: 12px;
}
.lesson-notes h2 {
  font-size: 21px;
  margin: 0;
}
.lesson-notes p {
  font-size: 13px;
}
.lesson-notes label {
  margin-bottom: 10px;
}
.lesson-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.lesson-next > div {
  display: grid;
  gap: 12px;
}
.lesson-next > div:last-child {
  text-align: right;
}
.lesson-next span {
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--muted);
}
.lesson-next a {
  font-size: 14px;
  text-decoration: none;
  line-height: 1.5;
}
dialog {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 15px;
  max-width: 94vw;
  box-shadow: 0 25px 100px #0004;
  color: var(--ink);
}
dialog::backdrop {
  background: #08212dcc;
  backdrop-filter: blur(4px);
}
#diagram-dialog {
  width: 94vw;
  max-width: 1600px;
}
#diagram-dialog header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#diagram-dialog h2 {
  font-size: 20px;
}
#diagram-dialog header button {
  font-size: 28px;
  border: 0;
  background: none;
}
#diagram-canvas {
  transform-origin: top left;
  transition: transform .15s;
  min-width: 300px;
}
.diagram-viewport {
  height: 70svh;
  overflow: auto;
  padding: 20px;
}
.diagram-viewport svg {
  width: 100%;
  max-width: none !important;
  height: auto;
}
.diagram-controls {
  display: flex;
  gap: 8px;
}
.page-intro {
  max-width: 820px;
  margin-bottom: 35px;
}
.page-intro h1 {
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.08;
  margin: 10px 0 24px;
}
.page-intro > p:not(.eyebrow) {
  font-size: 16px;
  max-width: 720px;
  color: var(--muted);
}
.practice-page {
  max-width: 1100px;
}
.practice-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin: 24px 0;
}
.practice-toolbar p {
  font-size: 12px;
  color: var(--muted);
}
.qa-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 24px;
  margin: 16px 0;
}
.qa-card h2 {
  font-size: 21px;
  margin: 12px 0 20px;
  letter-spacing: -.025em;
}
.qa-card .qa-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 11px;
  color: var(--muted);
}
.qa-card details summary {
  font-size: 13px;
  color: var(--teal);
  cursor: pointer;
}
.qa-card .prose {
  font-size: 14px;
}
.qa-rating {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.qa-rating button {
  font-size: 12px;
  border: 1px solid var(--line);
  background: #f3f6f0;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--teal);
}
.qa-rating button[aria-pressed=true] {
  background: #d9ede2;
  border-color: #87ba9d;
}
.qa-timer {
  border: 1px solid var(--line);
  background: white;
  color: var(--muted);
  font-size: 11px;
  padding: 7px 9px;
  border-radius: 5px;
}
.recall-page {
  max-width: 1000px;
}
.recall-card {
  background: #fff;
  min-height: 330px;
  padding: 40px;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  margin: 22px 0;
  position: relative;
}
.recall-card h2 {
  font-size: 26px;
  line-height: 1.4;
}
.recall-card .prose {
  font-size: 15px;
}
.recall-actions {
  display: flex;
  justify-content: space-between;
  gap: 15px;
}
.recall-grade {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.recall-grade button {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #eef6ec;
}
.plan-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 35px;
  align-items: start;
}
.profile-panel {
  padding: 25px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 15px;
  display: grid;
  gap: 18px;
  position: sticky;
  top: 94px;
  max-height: calc(100svh - 115px);
  overflow: auto;
}
.profile-panel h2 {
  font-size: 21px;
  margin: 0;
}
.profile-panel details {
  font-size: 13px;
}
.profile-panel summary {
  cursor: pointer;
  color: var(--teal);
  margin: 10px 0;
}
.profile-panel fieldset {
  border: 0;
  padding: 0;
  display: grid;
  gap: 15px;
}
.profile-panel legend {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--teal);
}
.profile-panel label {
  font-size: 11px;
}
.profile-panel input[type=range] {
  width: 100%;
  padding: 0;
  accent-color: var(--teal);
}
.profile-panel .slider-label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.profile-panel .inline-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.plan-summary {
  background: var(--navy);
  color: white;
  border-radius: 15px;
  padding: 28px;
}
.plan-summary h2 {
  font-size: 27px;
  margin: 0 0 16px;
}
.plan-summary p {
  font-size: 13px;
  color: #bdd2d1;
}
.plan-metrics {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}
.plan-metrics > div {
  display: grid;
  gap: 5px;
}
.plan-metrics strong {
  font-size: 28px;
  color: var(--mint);
}
.plan-metrics span {
  font-size: 11px;
  color: #adc6c3;
}
.domain-chart {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}
.domain-row {
  display: grid;
  grid-template-columns: 120px 1fr 25px;
  align-items: center;
  gap: 12px;
  font-size: 11px;
}
.domain-bar {
  height: 7px;
  border-radius: 8px;
  background: #ffffff20;
  overflow: hidden;
}
.domain-bar i {
  display: block;
  height: 100%;
  background: #b5eee0;
  border-radius: 8px;
}
.plan-session {
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin: 14px 0;
}
.plan-session h3 {
  font-size: 17px;
  margin: 9px 0;
}
.plan-session p {
  font-size: 12px;
  color: var(--muted);
  margin: 9px 0;
}
.plan-session .eyebrow {
  font-size: 9px !important;
}
.plan-session a {
  text-decoration: none;
}
.plan-session .session-bottom {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}
.plan-session button {
  font-size: 11px;
  color: var(--teal);
  background: #edf4ea;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 8px 10px;
}
.profile-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 25px 0;
}
.profile-actions .button {
  font-size: 12px;
  padding: 10px 14px;
}
.file-label input {
  width: 200px;
}
.study-progress {
  margin-top: 35px;
}
.study-progress p {
  font-size: 12px;
  color: var(--muted);
}
.book .book-chapter {
  padding-top: 60px;
  page-break-before: always;
  max-width: 980px;
  margin: auto;
}
.book-toc {
  columns: 3;
  gap: 30px;
}
.book-toc a {
  display: block;
  font-size: 12px;
  margin-bottom: 9px;
  break-inside: avoid;
}
.book h1 {
  font-size: 38px;
}
.book .prose {
  font-size: 15px;
}
.book .diagram-actions button {
  display: none;
}
.quiz-page {
  padding-top: 45px;
}
.quiz-page h1 em {
  color: var(--teal);
}
@media (max-width: 1100px) {
  .hero-grid {
    gap: 35px;
  }
  .ai-header {
    gap: 15px;
  }
  .ai-header nav {
    gap: 14px;
  }
  .lesson-layout {
    gap: 30px;
    grid-template-columns: 235px minmax(0, 1fr);
  }
  .journey {
    grid-template-columns: repeat(3, 1fr);
  }
  .journey > div {
    grid-column: 1/-1;
  }
  .mentor-band {
    margin: 20px 24px 50px;
    flex-wrap: wrap;
  }
  .mentor-band > a {
    margin-left: 130px;
  }
  .plan-layout {
    grid-template-columns: 300px minmax(0, 1fr);
  }
}
@media (max-width: 800px) {
  .ai-header {
    padding: 13px 20px;
    flex-wrap: wrap;
    gap: 12px;
  }
  .ai-header nav {
    order: 3;
    overflow: auto;
    width: 100%;
    padding-top: 10px;
    border-top: 1px solid var(--line);
    gap: 24px;
  }
  .ai-header nav a {
    font-size: 12px;
  }
  .ai-brand {
    font-size: 18px;
  }
  .ai-hero {
    padding-top: 48px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .architecture-art {
    max-width: 530px;
    margin: 5px auto 10px;
    width: 100%;
    transform: none;
  }
  .ai-hero h1 {
    font-size: 48px;
  }
  .hero-numbers {
    margin-top: 35px;
  }
  .hero-numbers strong {
    font-size: 23px;
  }
  .hero-numbers span {
    font-size: 10px;
  }
  .lesson-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .lesson-layout {
    display: block;
    padding: 0 22px;
  }
  .lesson-outline {
    position: relative;
    top: auto;
    max-height: 360px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 10px;
    margin-top: 25px;
  }
  .lesson-outline .back-link {
    margin-bottom: 14px;
  }
  .lesson-outline nav {
    columns: 2;
    display: block;
  }
  .lesson-outline nav a {
    display: block;
    break-inside: avoid;
  }
  .outline-tools {
    display: none;
  }
  .lesson-main {
    padding-top: 20px;
  }
  .lesson-heading h1 {
    font-size: 36px;
  }
  .breadcrumbs {
    margin-bottom: 24px;
  }
  .prose {
    font-size: 15px;
  }
  .prose h2 {
    scroll-margin-top: 145px;
    font-size: 25px;
  }
  .prose h3 {
    scroll-margin-top: 145px;
  }
  .plan-layout {
    grid-template-columns: 1fr;
  }
  .profile-panel {
    position: relative;
    top: auto;
    max-height: none;
  }
  .plan-layout .profile-panel > details {
    margin: 0;
  }
  .profile-panel fieldset {
    grid-template-columns: 1fr 1fr;
  }
  .book-toc {
    columns: 2;
  }
  :root {
    scroll-padding-top: 140px;
  }
}
@media (max-width: 560px) {
  .ai-section {
    padding: 42px 20px;
  }
  .ai-hero {
    padding-left: 22px;
    padding-right: 22px;
  }
  .ai-hero h1 {
    font-size: 40px;
  }
  .hero-lede {
    font-size: 15px;
  }
  .hero-byline {
    font-size: 11px;
  }
  .hero-byline small {
    font-size: 10px;
  }
  .hero-numbers {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }
  .hero-numbers > div:nth-child(2) {
    border: 0;
  }
  .hero-actions .button {
    font-size: 12px;
    padding: 13px 16px;
  }
  .journey {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .journey > div {
    grid-column: auto;
  }
  .journey-step {
    padding-left: 20px;
  }
  .journey-step h3 {
    margin: 9px 0;
  }
  .lesson-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    display: block;
  }
  .section-head h2 {
    font-size: 29px;
    margin-bottom: 20px;
  }
  .library-tabs button {
    padding: 8px 10px;
    font-size: 11px;
  }
  .filter-row {
    gap: 12px;
  }
  .filter-row label {
    min-width: 145px;
  }
  .filter-row label:first-child {
    flex-basis: 100%;
  }
  .lesson-card {
    padding: 22px;
  }
  .card-top {
    margin-bottom: 18px;
  }
  .mentor-band {
    padding: 24px;
    margin: 0 20px 40px;
    gap: 18px;
  }
  .mentor-band > img {
    width: 70px;
    height: 70px;
  }
  .mentor-band h2 {
    font-size: 24px;
  }
  .mentor-band > a {
    margin-left: 0;
  }
  .mentor-band > div {
    flex: 1;
    min-width: 190px;
  }
  .ai-footer {
    padding: 30px 22px;
  }
  .ai-footer nav {
    gap: 14px;
  }
  .lesson-outline nav {
    columns: 1;
  }
  .lesson-heading h1 {
    font-size: 30px;
  }
  .lesson-meta {
    gap: 10px;
  }
  .prose h2 {
    font-size: 23px;
  }
  .prose h3 {
    font-size: 19px;
  }
  .ai-diagram {
    padding: 12px;
    margin-left: -6px;
    margin-right: -6px;
  }
  .prose td,
  .prose th {
    padding: 12px;
    min-width: 140px;
  }
  .prose pre {
    font-size: 11px;
    padding: 16px;
  }
  .lesson-next a {
    font-size: 12px;
  }
  .recall-card {
    padding: 24px;
    min-height: 280px;
  }
  .recall-card h2 {
    font-size: 22px;
  }
  .recall-actions .button {
    padding: 12px;
    font-size: 12px;
  }
  .recall-grade {
    flex-wrap: wrap;
  }
  .profile-panel fieldset {
    grid-template-columns: 1fr;
  }
  .practice-toolbar {
    align-items: start;
    flex-direction: column;
  }
  .qa-card {
    padding: 20px;
  }
  .qa-card .qa-meta {
    flex-wrap: wrap;
  }
  .qa-card h2 {
    font-size: 18px;
  }
  .page-intro h1 {
    font-size: 38px;
  }
  .book-toc {
    columns: 1;
  }
  .book h1 {
    font-size: 28px;
  }
  #continue-reading {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
@media print {
  .ai-header,
  .ai-footer,
  .lesson-outline,
  .lesson-meta button,
  .lesson-notes,
  .lesson-next,
  .diagram-actions,
  .diagram-text,
  .skip-link,
  #ai-toast,
  .book-toc,
  .page-intro button {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
  .lesson-layout,
  .lesson-main,
  .ai-section {
    display: block;
    max-width: none;
    padding: 0;
    margin: 0;
  }
  .prose {
    font-size: 10pt;
    line-height: 1.5;
  }
  .prose h2 {
    font-size: 17pt;
    break-after: avoid;
  }
  .prose h3 {
    font-size: 13pt;
    break-after: avoid;
  }
  .prose table {
    font-size: 8pt;
  }
  .prose th {
    background: #e8ede9;
    color: black;
  }
  .prose pre {
    --code-comment: #52606a;
    --code-keyword: #783ec7;
    --code-string: #116329;
    --code-number: #953800;
    --code-title: #0550ae;
    --code-built-in: #b42332;
    --code-meta: #375d56;
    white-space: pre-wrap;
    background: #f0f3ef;
    color: black;
  }
  .prose figure,
  .prose tr,
  .prose img {
    break-inside: avoid;
  }
  .prose .table-wrap {
    overflow: visible;
  }
  .mermaid {
    overflow: visible;
  }
  .book-chapter {
    page-break-before: always;
  }
  .book .book-chapter {
    padding-top: 0;
  }
  a {
    color: inherit;
  }
  h1 {
    font-size: 25pt !important;
  }
}
.reading-track {
  position: fixed;
  left: 0;
  right: 0;
  top: 72px;
  height: 3px;
  z-index: 25;
  pointer-events: none;
  background: transparent;
}
.reading-track span {
  display: block;
  height: 100%;
  width: 0;
  background: #ee895e;
}
@media (min-width: 561px) and (max-width: 1000px) {
  .lesson-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
body[data-page=quiz] h1,
body[data-page=quiz] h2 {
  font-family:
    Manrope,
    system-ui,
    sans-serif;
}
body[data-page=quiz] .reading-track {
  display: none;
}
@media (max-width: 800px) {
  .reading-track {
    top: 117px;
  }
}
.lesson-outline nav a[data-depth="2"] {
  padding-left: 22px;
  font-size: 11px;
}
.reading-track {
  display: block;
}
@media print {
  .reading-track {
    display: none !important;
  }
}
.prose h2,
.prose h3,
.prose h4 {
  scroll-margin-top: 16px;
}
#diagram-canvas svg {
  min-width: 0 !important;
  max-width: none;
  width: 100%;
}
@media print {
  .prose .ai-diagram {
    margin: 6mm 0;
    padding: 3mm;
    overflow: visible;
  }
  .mermaid {
    max-height: none;
    overflow: visible;
    padding: 0;
  }
  .mermaid svg {
    display: block;
    margin-inline: auto;
    min-width: 0 !important;
    max-width: 100%;
    /* In print, vh uses the page area. Reserve room for the heading and frame
       so an indivisible SVG cannot force empty pages before it. */
    max-height: calc(100vh - 35mm);
  }
}

.hero-grid>div{min-width:0}.hero-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}@media(max-width:800px){.hero-grid{grid-template-columns:minmax(0,1fr)}}@media(max-width:560px){.art-flow{gap:6px}.art-flow>div{padding:13px 8px}.art-flow b{font-size:12px}.art-flow small{font-size:9px}.art-top{font-size:8px}.ai-header nav{gap:20px}.hero-byline{align-items:flex-start}}

/* A focused weekly planner: natural page scrolling, optional advanced settings. */
.planner-intro{max-width:none;display:grid;grid-template-columns:1.25fr 1fr;gap:60px;align-items:center;padding-bottom:38px}
.planner-intro h1{font-size:clamp(36px,4.5vw,58px);margin:15px 0 20px}
.planner-intro>div>p:not(.eyebrow){max-width:570px;font-size:15px}
.planner-route{list-style:none;margin:0;padding:28px 30px;border:1px solid #d6e3d7;border-radius:20px;background:#eaf1e7}
.planner-route li{display:flex;gap:18px;align-items:center;padding:14px 0;position:relative}
.planner-route li+li{border-top:1px solid #cfddcd}
.planner-route li>span{display:grid;place-items:center;width:35px;height:35px;border:1px solid #b2cbb7;border-radius:50%;font-size:11px;color:#34614c;flex-shrink:0}
.planner-route strong{display:block;font-size:14px;font-weight:600}.planner-route small{display:block;font-size:12px;color:#536b5c;margin-top:5px}
.planner-page .plan-layout{grid-template-columns:330px minmax(0,1fr);gap:28px}
.planner-page .profile-panel{position:static;max-height:none;overflow:visible;padding:25px;gap:24px;border-radius:18px;box-shadow:0 8px 30px #12362905}
.profile-panel-heading .eyebrow{font-size:10px;margin:0 0 9px}.profile-panel-heading>p:last-child{font-size:12px;color:var(--muted);line-height:1.7;margin:10px 0 0}
.planner-page .profile-panel fieldset{grid-template-columns:1fr;margin:0;min-width:0;gap:17px}
.planner-page .profile-panel .profile-step{padding-top:18px;border-top:1px solid var(--line)}
.planner-page .profile-step legend{font-size:12px;margin:0;padding:0 10px 0 0;color:var(--ink);letter-spacing:0}
.profile-step legend>span{font-size:10px;color:var(--teal);padding-right:8px}
.planner-page .profile-panel label{font-size:12px;line-height:1.5;display:grid;gap:7px}
.planner-page .profile-panel input:not([type=range]){font-size:13px;min-height:44px;background:#fbfcfa;border-radius:8px;margin:0}
.planner-page .profile-panel .search-select{margin:0}.planner-page .profile-panel .search-select__trigger{min-height:44px;font-size:13px}
.planner-page .profile-panel .inline-fields{gap:14px}
.profile-tuning{border:1px solid var(--line);border-radius:10px;background:#f8faf6;padding:0 14px}
.profile-tuning details+details{border-top:1px solid var(--line)}
.planner-page .profile-panel summary{font-size:12px;font-weight:500;line-height:1.7;padding:13px 0;margin:0}
.profile-panel details p{font-size:11px;line-height:1.7;margin:0 0 18px}.profile-tuning fieldset{padding-bottom:20px}
.profile-submit{display:grid;gap:10px}.profile-submit .button{justify-content:space-between;min-height:46px;font-size:13px;border-radius:9px}
#profile-status{font-size:11px;line-height:1.6;margin:0;color:var(--muted);min-height:35px}
.saved-profile-tools{border-top:1px solid var(--line);padding-top:3px}.saved-profile-tools .button{font-size:12px;min-height:44px;width:100%;margin:0 0 18px}
.planner-page .plan-summary{border-radius:18px;padding:30px;background:radial-gradient(ellipse at top right,#376a5966,transparent 65%),#102f35;scroll-margin-top:100px}
.plan-summary:focus:not(:focus-visible){outline:0}.planner-page .plan-summary h2{font-size:30px;overflow-wrap:anywhere;line-height:1.3;margin:12px 0 25px}.planner-page .plan-summary>.eyebrow{font-size:10px;line-height:1.8;margin:0;color:#c1dbd2}
.planner-page .plan-metrics{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px}.planner-page .plan-metrics>div{gap:9px}.planner-page .plan-metrics strong{font:600 24px/1.4 Manrope,sans-serif;color:#c6ebcf}.plan-metrics strong small{font-size:12px;font-weight:500}.planner-page .plan-metrics span{font-size:11px;line-height:1.6;color:#c0d2ce}
.plan-priorities{border-top:1px solid #ffffff26;margin-top:25px;padding-top:16px}.plan-priorities summary{font-size:12px;cursor:pointer;color:#cee2d9}.plan-priorities .domain-chart{margin-top:18px}
.schedule-heading{display:flex;justify-content:space-between;align-items:end;gap:15px;margin:34px 0 18px}.schedule-heading .eyebrow{margin:0 0 7px;font-size:10px}.schedule-heading h2{font-size:23px;margin:0}.schedule-heading>a{font-size:12px;white-space:nowrap;text-decoration:none}
.plan-week-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px}
.plan-week-tabs button{border:1px solid #d0dfd4;border-radius:8px;background:#fff;color:#486257;font-size:12px;min-height:42px;padding:9px 16px;font-weight:500}
.plan-week-tabs button[aria-pressed=true]{color:#fff;background:#1d6152;border-color:#1d6152}
.plan-week-tabs button:hover{border-color:#1d6152}.plan-week-heading{font-size:12px;color:var(--muted);margin:20px 0 15px;line-height:1.7}
.planner-page .plan-session{display:grid;grid-template-columns:48px minmax(0,1fr);gap:20px;padding:24px;margin:0 0 14px;border-radius:14px}
.session-day{display:flex;flex-direction:column;align-items:center;gap:4px;border-right:1px solid var(--line);padding-right:16px;align-self:start;color:var(--teal)}
.session-day span{font-size:9px;font-weight:700;letter-spacing:.09em}.session-day strong{font:600 25px/1.2 Manrope,sans-serif}
.session-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:10px;color:#42695a;line-height:1.6}.session-meta>span+span:before{content:'·';margin-right:8px;color:#8faba0}
.planner-page .plan-session h3{font-size:18px;line-height:1.45;margin:10px 0;color:#193f3c}.planner-page .plan-session h3 a{color:inherit}.plan-session h3 a span{color:var(--teal);font-size:15px}
.planner-page .plan-session p{font-size:13px;line-height:1.8;margin:10px 0 16px}
.planner-page .plan-session .session-bottom{border-top:1px solid #edf1ec;padding-top:12px;flex-wrap:wrap;gap:8px 16px;font-size:12px}.session-bottom>a{min-height:36px;display:inline-flex;align-items:center}.planner-page .plan-session button{min-height:40px;padding:10px 12px;font-size:12px;border-radius:7px}.session-continue{font-weight:600}
.plan-empty{border:1px dashed #abc5b6;border-radius:16px;background:#edf4ed;padding:28px}.plan-empty p{font-size:14px;color:var(--muted)}.plan-empty h3{font-size:20px}.plan-empty .button{font-size:13px}
.plan-method{padding:10px 0 22px;color:var(--muted);font-size:12px;line-height:1.8}.plan-method summary{cursor:pointer}.plan-method p{margin-bottom:0}
.planner-page .study-progress{background:#eaf0e7;border:1px solid #d9e2d5;border-radius:16px;padding:26px;margin-top:12px}.study-progress>.eyebrow{font-size:10px;margin:0 0 8px}.study-progress h2{font-size:22px;margin:0 0 20px}.study-progress summary{font-size:12px;cursor:pointer;color:var(--teal);line-height:1.7}.study-progress details>p{font-size:13px;margin-top:16px}
#study-progress-summary{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 24px}#study-progress-summary>span{display:flex;align-items:center;gap:10px;font-size:12px}#study-progress-summary strong{font:600 22px Manrope,sans-serif;color:#2c5e46}
.planner-page .profile-actions{align-items:center;margin:18px 0;gap:20px}.planner-page .profile-actions .button{min-height:44px}.file-label{font-size:12px;display:grid;gap:8px}.file-label input{width:100%;max-width:260px;font-size:12px}.file-label input::file-selector-button{padding:10px;border:1px solid #bed0bf;border-radius:7px;background:#fff;color:#2b5b47;margin-right:10px;cursor:pointer}
@media(max-width:1100px){.planner-intro{gap:30px}.planner-page .plan-layout{grid-template-columns:300px minmax(0,1fr);gap:24px}.planner-page .profile-panel{padding:22px}.planner-page .plan-summary{padding:24px}.planner-page .plan-metrics strong{font-size:21px}.schedule-heading{align-items:start;flex-direction:column;gap:12px}.planner-page .plan-session{padding:20px;gap:15px}}
@media(max-width:800px){.planner-intro{grid-template-columns:1fr;gap:24px}.planner-route{padding:16px 24px}.planner-page .plan-layout{grid-template-columns:1fr}.planner-page .profile-panel{gap:24px;padding:26px}.planner-page .profile-panel>.profile-step{grid-template-columns:1fr 1fr}.profile-panel>.profile-step>.inline-fields{grid-column:1/-1}.profile-panel>.profile-step>label:has(#profile-minutes){grid-column:1/-1}.planner-page .profile-panel>details{grid-column:auto}.planner-page .plan-summary{margin-top:8px}.schedule-heading{flex-direction:row;align-items:end}.planner-page .plan-session{padding:24px}.planner-intro h1{font-size:44px}}
@media(max-width:500px){.planner-intro h1{font-size:38px}.planner-page .profile-panel>.profile-step{grid-template-columns:1fr}.planner-page .profile-panel{padding:22px}.planner-page .plan-summary{padding:25px 22px}.planner-page .plan-summary h2{font-size:27px}.planner-page .plan-metrics{gap:16px;grid-template-columns:1fr}.planner-page .plan-metrics>div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;border-bottom:1px solid #ffffff1a;padding-bottom:12px}.planner-page .plan-metrics span{text-align:right;max-width:130px}.planner-page .plan-metrics strong{white-space:nowrap}.schedule-heading{flex-direction:column;align-items:start}.plan-week-tabs{gap:7px}.plan-week-tabs button{padding:9px 12px;min-height:44px}.planner-page .plan-session{padding:20px 16px;grid-template-columns:35px minmax(0,1fr);gap:13px}.session-day{padding-right:10px}.session-day strong{font-size:22px}.planner-page .plan-session h3{font-size:17px}.session-bottom>a{min-height:42px}.planner-page .study-progress{padding:22px 18px}#study-progress-summary{gap:16px 12px}#study-progress-summary>span{font-size:11px;gap:7px}.domain-row{grid-template-columns:115px 1fr 25px;gap:8px}}

@media(max-width:560px){.ai-header nav{gap:6px;justify-content:space-between;overflow:visible}.ai-header nav a{font-size:11px;min-height:32px;display:flex;align-items:center}}