:root {
  color-scheme: light;
  --ink: #243142;
  --muted: #5d6d7f;
  --paper: #fffdf8;
  --surface: #ffffff;
  --line: #d8e0e8;
  --teal: #2f7d7b;
  --teal-dark: #245f5e;
  --gold: #f2b84b;
  --rose: #cf6f73;
  --blue: #476f9f;
  --shadow: 0 18px 42px rgba(36, 49, 66, 0.1);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  min-width: 320px;
}

button {
  font: inherit;
}

.skip-link {
  background: var(--ink);
  color: #ffffff;
  left: 1rem;
  padding: 0.6rem 0.85rem;
  position: absolute;
  top: -4rem;
  z-index: 10;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 1rem clamp(1rem, 3vw, 2rem);
}

.site-kicker,
.eyebrow,
.quote-panel__label {
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

.site-title {
  font-weight: 800;
  margin: 0.15rem 0 0;
}

.site-pill {
  background: #fff4dc;
  border: 1px solid #e9c982;
  border-radius: 999px;
  color: #745011;
  font-weight: 800;
  margin: 0;
  padding: 0.45rem 0.8rem;
  white-space: nowrap;
}

.week-page {
  margin: 0 auto;
}

.intro-band {
  background:
    linear-gradient(135deg, rgba(47, 125, 123, 0.14), rgba(242, 184, 75, 0.18)),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.intro-band--weekly {
  background:
    linear-gradient(90deg, rgba(47, 125, 123, 0.22) 0 0.7rem, transparent 0.7rem),
    linear-gradient(135deg, rgba(47, 125, 123, 0.17), rgba(71, 111, 159, 0.1) 52%, rgba(242, 184, 75, 0.22)),
    var(--paper);
  border-bottom: 1px solid rgba(47, 125, 123, 0.24);
}

.intro-band--weekly .intro-band__content::after {
  background: linear-gradient(90deg, var(--teal), var(--gold), var(--rose));
  border-radius: 999px;
  content: "";
  display: block;
  height: 0.35rem;
  margin-top: 1.35rem;
  max-width: 18rem;
}

.intro-band__content,
.message-section,
.strategies-section,
.day-nav-section,
.monday-section,
.daily-section {
  margin: 0 auto;
  max-width: 1120px;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 3vw, 2rem);
}

.intro-band__content--compact {
  padding-bottom: clamp(1.4rem, 3vw, 2.2rem);
  padding-top: clamp(1.4rem, 3vw, 2.2rem);
}

.intro-band__content--compact h1 {
  font-size: clamp(1.85rem, 4vw, 2.7rem);
  line-height: 1.12;
}

.intro-band__content--compact .daily-title {
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  line-height: 1.16;
}

h1,
h2,
h3,
p,
blockquote,
dd {
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2rem, 6vw, 4.2rem);
  line-height: 1.04;
  margin: 0.45rem 0 0.55rem;
  max-width: 960px;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.1;
  margin: 0.35rem 0 0;
}

h3 {
  font-size: 1.3rem;
  margin: 0;
}

.intro-subtitle {
  color: var(--teal-dark);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 800;
  margin: 0 0 1.5rem;
  max-width: 820px;
}

.back-link {
  color: var(--teal-dark);
  display: inline-flex;
  font-weight: 800;
  margin-bottom: 1rem;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.2em;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--ink);
  outline: none;
}

.overview-list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  max-width: 960px;
}

.overview-list div {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(216, 224, 232, 0.9);
  border-radius: var(--radius);
  padding: 1rem;
}

.overview-list dt {
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 0.2rem;
}

.overview-list dd {
  margin: 0;
}

.foundation-note {
  border-left: 5px solid var(--gold);
  color: var(--ink);
  font-weight: 650;
  margin: 1.25rem 0 0;
  max-width: 920px;
  padding-left: 1rem;
}

.message-section {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.quote-panel {
  background: var(--ink);
  border-radius: var(--radius);
  color: #ffffff;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.quote-panel__label {
  color: #a9dfdc;
}

blockquote {
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  font-weight: 800;
  line-height: 1.18;
  margin: 0.6rem 0 0;
}

.welcome-copy {
  align-self: center;
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0;
}

.section-heading {
  margin-bottom: 1.25rem;
  max-width: 760px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0.55rem 0 0;
}

.strategy-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.strategy-card,
.day-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 18px rgba(36, 49, 66, 0.05);
  padding: 0.95rem 1rem;
}

.strategy-card h3,
.day-card h3 {
  font-size: 1.05rem;
  line-height: 1.25;
}

.strategy-card p,
.day-card p {
  color: var(--muted);
  margin: 0.45rem 0 0;
}

.strategy-card p {
  font-size: 0.95rem;
}

.day-nav-section {
  background:
    linear-gradient(180deg, rgba(71, 111, 159, 0.09), rgba(47, 125, 123, 0.06));
  border-bottom: 1px solid rgba(71, 111, 159, 0.16);
  border-top: 1px solid rgba(71, 111, 159, 0.16);
  box-shadow: 0 0 0 100vmax rgba(71, 111, 159, 0.06);
  clip-path: inset(0 -100vmax);
  margin-top: 0.5rem;
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.day-card-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.day-card {
  color: inherit;
  display: flex;
  flex-direction: column;
  min-height: 12.5rem;
  text-decoration: none;
}

.day-card--available {
  border-color: rgba(47, 125, 123, 0.55);
}

.day-card--available:hover,
.day-card--available:focus-visible {
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.18), 0 12px 26px rgba(36, 49, 66, 0.08);
  outline: none;
}

.day-card--coming {
  background: #f8fafb;
  color: #6d7985;
}

.day-card__status {
  align-self: flex-start;
  background: #e8f3f2;
  border: 1px solid #bdd8d7;
  border-radius: 999px;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  padding: 0.28rem 0.55rem;
}

.day-card--coming .day-card__status {
  background: #eef2f5;
  border-color: #d7dfe7;
  color: #687888;
}

.monday-section {
  padding-top: 1rem;
}

.daily-section {
  padding-top: 1.25rem;
}

.daily-section--examples {
  background:
    linear-gradient(180deg, rgba(242, 184, 75, 0.1), rgba(47, 125, 123, 0.06));
  border-bottom: 1px solid rgba(242, 184, 75, 0.24);
  border-top: 1px solid rgba(242, 184, 75, 0.24);
  box-shadow: 0 0 0 100vmax rgba(242, 184, 75, 0.08);
  clip-path: inset(0 -100vmax);
}

.review-callout,
.practice-support-note,
.reflection-card,
.exit-check-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 18px rgba(36, 49, 66, 0.05);
  padding: clamp(1rem, 2.4vw, 1.35rem);
}

.review-callout {
  border-left: 5px solid var(--gold);
}

.review-callout--inequality {
  border-left-color: var(--rose);
}

.review-callout p,
.practice-support-note p {
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 650;
  margin: 0;
}

.review-callout--small {
  margin-top: 1rem;
}

.review-callout--small p {
  font-size: 1rem;
}

.function-flow {
  align-items: stretch;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  margin-top: 1rem;
}

.function-flow div {
  align-items: center;
  background: #f7fbfb;
  border: 1px solid #bdd8d7;
  border-radius: var(--radius);
  display: grid;
  justify-items: center;
  min-height: 4.25rem;
  padding: 0.75rem;
  text-align: center;
}

.function-flow div[aria-hidden="true"] {
  background: transparent;
  border: 0;
  color: var(--teal-dark);
  font-weight: 800;
  padding-inline: 0;
}

.function-flow span,
.function-display span {
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.function-flow strong,
.function-display strong {
  font-size: 1.25rem;
}

.inequality-emphasis {
  background: #fff4dc;
  border: 1px solid #e9c982;
  border-radius: var(--radius);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  color: #745011;
  display: inline;
  padding: 0.05rem 0.35rem;
}

.guided-example-list {
  display: grid;
  gap: 1rem;
}

.guided-example {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2.4vw, 1.4rem);
}

.guided-example__header {
  align-items: start;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: auto 1fr;
}

.guided-example__header p {
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0.3rem 0 0;
}

.example-note-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.example-note-grid div,
.why-it-works {
  background: #f8fafb;
  border: 1px solid #e0e7ee;
  border-radius: var(--radius);
  padding: 0.85rem;
}

.guided-example h4 {
  color: var(--blue);
  font-size: 0.98rem;
  margin: 0 0 0.35rem;
}

.guided-example p {
  margin-bottom: 0;
}

.solution-steps {
  margin-top: 1rem;
}

.solution-steps ol,
.step-demo ol {
  display: grid;
  gap: 0.55rem;
  margin: 0.55rem 0 0;
  padding-left: 1.45rem;
}

.solution-steps li,
.step-demo__item {
  padding-left: 0.2rem;
}

.solution-steps li::marker {
  color: var(--teal-dark);
  font-weight: 800;
}

.step-demo__item {
  background: #f8fafb;
  border: 1px solid #e0e7ee;
  border-radius: var(--radius);
  display: grid;
  gap: 0.25rem;
  padding: 0.75rem 0.85rem;
}

.step-demo__item[hidden] {
  display: none;
}

.step-demo__item--visible {
  border-left: 5px solid var(--teal);
}

.symbol-reversal.step-demo__item--visible {
  background: #fff7ea;
  border-color: #eccb88;
  border-left-color: var(--rose);
}

.step-demo__item span:last-child,
.step-demo__note {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.step-demo__button,
.prediction-options button {
  background: var(--teal);
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
}

.step-demo__button {
  margin-top: 0.85rem;
}

.step-demo__button:hover:not(:disabled),
.step-demo__button:focus-visible,
.prediction-options button:hover,
.prediction-options button:focus-visible {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  outline: none;
}

.step-demo__button:disabled {
  background: #eef2f5;
  border-color: #d7dfe7;
  color: #687888;
  cursor: not-allowed;
}

.why-it-works {
  border-left: 5px solid var(--teal);
  margin-top: 1rem;
}

.practice-support-note {
  border-left: 5px solid var(--blue);
  margin-bottom: 1rem;
}

.reflection-card {
  background: #fff7ea;
  border-color: #eccb88;
}

.exit-check-card {
  background: #fff7ea;
  border-color: #eccb88;
}

.reflection-card h2 {
  margin-bottom: 1rem;
}

.reflection-card label {
  color: var(--blue);
  display: block;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.reflection-card textarea {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  min-height: 9rem;
  padding: 0.75rem;
  resize: vertical;
  width: 100%;
}

.reflection-card textarea:focus-visible {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.18);
  outline: none;
}

.prediction-block {
  margin-top: 1rem;
}

.prediction-block p {
  color: var(--ink);
  font-weight: 800;
  margin: 0;
}

.prediction-options {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 0.75rem;
  max-width: 24rem;
}

.prediction-options button[aria-pressed="true"] {
  background: var(--rose);
  border-color: var(--rose);
}

.problem-list--compact {
  margin-top: 1rem;
}

.problem-card--exit {
  box-shadow: 0 8px 18px rgba(36, 49, 66, 0.05);
}

.exit-summary {
  background: #f7fbfb;
  border: 1px solid #bdd8d7;
  border-left: 5px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 1rem;
  padding: 1rem;
}

.exit-summary p {
  font-weight: 800;
  margin: 0.35rem 0 0;
}

.exit-summary p:first-child {
  margin-top: 0;
}

.exit-summary__message {
  color: var(--teal-dark);
}

.daily-section--wrap-up {
  background:
    linear-gradient(180deg, rgba(47, 125, 123, 0.08), rgba(242, 184, 75, 0.08));
  border-bottom: 1px solid rgba(47, 125, 123, 0.18);
  box-shadow: 0 0 0 100vmax rgba(47, 125, 123, 0.05);
  clip-path: inset(0 -100vmax);
}

.weekly-summary {
  background: #f7fbfb;
  border: 1px solid #bdd8d7;
  border-left: 5px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 1rem;
  padding: 1rem;
}

.weekly-summary p {
  font-weight: 800;
  margin: 0.35rem 0 0;
}

.weekly-summary p:first-child {
  color: var(--teal-dark);
  margin-top: 0;
}

.self-assessment--weekly h2 {
  margin-top: 0.35rem;
}

.growth-compare {
  color: var(--muted);
  font-weight: 700;
  margin: 1rem 0 0;
}

.problem-list {
  display: grid;
  gap: 1rem;
}

.daily-section--mistake {
  background:
    linear-gradient(180deg, rgba(207, 111, 115, 0.08), rgba(71, 111, 159, 0.06));
  border-bottom: 1px solid rgba(207, 111, 115, 0.18);
  border-top: 1px solid rgba(207, 111, 115, 0.18);
  box-shadow: 0 0 0 100vmax rgba(207, 111, 115, 0.06);
  clip-path: inset(0 -100vmax);
}

.daily-section--context,
.daily-section--tool {
  background:
    linear-gradient(180deg, rgba(47, 125, 123, 0.08), rgba(242, 184, 75, 0.08));
  border-bottom: 1px solid rgba(47, 125, 123, 0.18);
  border-top: 1px solid rgba(47, 125, 123, 0.18);
  box-shadow: 0 0 0 100vmax rgba(47, 125, 123, 0.05);
  clip-path: inset(0 -100vmax);
}

.daily-section--tool {
  background:
    linear-gradient(180deg, rgba(71, 111, 159, 0.08), rgba(47, 125, 123, 0.06));
  border-color: rgba(71, 111, 159, 0.18);
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2.4vw, 1.4rem);
}

.mistake-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2.4vw, 1.4rem);
}

.mistake-analysis-grid {
  display: grid;
  gap: 1rem;
}

.mistake-card--type {
  display: grid;
  gap: 0.2rem;
}

.context-card,
.tool-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 2.4vw, 1.4rem);
}

.context-card > p {
  font-size: 1.08rem;
  font-weight: 650;
  margin: 0;
}

.function-display {
  background: #fff7ea;
  border: 1px solid #eccb88;
  border-left: 5px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  display: grid;
  gap: 0.15rem;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
}

.data-table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
}

.data-table {
  background: #ffffff;
  border-collapse: collapse;
  min-width: 16rem;
  width: 100%;
}

.data-table th,
.data-table td {
  border: 1px solid var(--line);
  padding: 0.6rem 0.75rem;
  text-align: center;
}

.data-table th {
  background: #e8f3f2;
  color: var(--teal-dark);
  font-weight: 800;
}

.data-table caption {
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 0.45rem;
  text-align: left;
}

.context-breakdown {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 1rem 0 0;
}

.context-breakdown div {
  background: #f8fafb;
  border: 1px solid #e0e7ee;
  border-radius: var(--radius);
  padding: 0.8rem;
}

.context-breakdown dt {
  color: var(--blue);
  font-weight: 800;
}

.context-breakdown dd {
  margin: 0.2rem 0 0;
}

.tool-card {
  align-items: center;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 1rem;
}

.tool-card p {
  font-size: 1.08rem;
  font-weight: 650;
  margin: 0;
}

.tool-card .tool-reminder {
  color: var(--muted);
  font-size: 0.98rem;
  margin-top: 0.35rem;
}

.desmos-link {
  background: var(--teal);
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  color: #ffffff;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
  text-decoration: none;
  white-space: nowrap;
}

.desmos-link:hover,
.desmos-link:focus-visible {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  outline: none;
}

.mistake-work {
  background: #f8fafb;
  border: 1px solid #e0e7ee;
  border-left: 5px solid var(--rose);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0.9rem 1rem;
}

.mistake-work p {
  font-size: 1.12rem;
  margin: 0.3rem 0 0;
}

.mistake-work p:first-child {
  margin-top: 0;
}

.mistake-prompts {
  color: var(--muted);
  font-weight: 700;
  margin-top: 1rem;
}

.mistake-choice-group {
  border: 0;
  display: grid;
  gap: 0.6rem;
  margin: 1rem 0 0;
  padding: 0;
}

.choice-group {
  border: 0;
  display: grid;
  gap: 0.6rem;
  margin: 1rem 0 0;
  padding: 0;
}

.mistake-choice-group legend,
.choice-group legend {
  color: var(--blue);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.mistake-choice-group button,
.mistake-check-button,
.choice-group button,
.choice-check-button,
.reflection-options button {
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 800;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
}

.mistake-choice-group button,
.choice-group button,
.reflection-options button {
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--ink);
  text-align: left;
}

.mistake-choice-group button:hover,
.mistake-choice-group button:focus-visible,
.mistake-check-button:hover,
.mistake-check-button:focus-visible,
.choice-group button:hover,
.choice-group button:focus-visible,
.choice-check-button:hover,
.choice-check-button:focus-visible,
.reflection-options button:hover,
.reflection-options button:focus-visible {
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.2);
  outline: none;
}

.mistake-choice-group button[aria-pressed="true"],
.choice-group button[aria-pressed="true"],
.reflection-options button[aria-pressed="true"] {
  border-color: var(--teal);
  box-shadow: inset 0 0 0 2px rgba(47, 125, 123, 0.18);
}

.mistake-check-button,
.choice-check-button {
  background: var(--teal);
  border: 1px solid var(--teal);
  color: #ffffff;
  margin-top: 0.85rem;
}

.mistake-feedback,
.choice-feedback,
.reflection-status {
  font-weight: 800;
  margin: 0.65rem 0 0;
  min-height: 1.5rem;
}

.mistake-feedback[data-result="correct"],
.choice-feedback[data-result="correct"] {
  color: var(--teal-dark);
}

.mistake-feedback[data-result="retry"],
.choice-feedback[data-result="retry"] {
  color: #745011;
}

.structured-reflection h2 {
  margin-bottom: 1rem;
}

.structured-reflection--weekly h2 {
  margin-bottom: 0.35rem;
}

.reflection-question {
  margin-top: 1rem;
}

.reflection-question h3 {
  color: var(--ink);
  font-size: 1.05rem;
  margin-bottom: 0.7rem;
}

.reflection-options {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.structured-reflection--weekly .reflection-options {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.reflection-status {
  color: var(--teal-dark);
}

.daily-section--closing {
  padding-bottom: 1rem;
}

.closing-growth-quote {
  background: var(--ink);
  border-radius: var(--radius);
  color: #ffffff;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.closing-growth-quote .eyebrow {
  color: #a9dfdc;
}

.closing-growth-quote blockquote {
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.daily-section--bottom-nav {
  padding-bottom: clamp(1.5rem, 4vw, 3rem);
  padding-top: 1rem;
}

.daily-bottom-nav {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
  border-radius: var(--radius);
  box-shadow: 0 8px 18px rgba(36, 49, 66, 0.05);
  padding: clamp(1rem, 2.5vw, 1.35rem);
}

.daily-bottom-nav__heading {
  margin-bottom: 0.95rem;
}

.daily-bottom-nav__heading h2 {
  font-size: clamp(1.25rem, 3vw, 1.65rem);
}

.daily-bottom-nav__links {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
}

.daily-bottom-nav__link {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
  text-align: center;
  text-decoration: none;
}

.daily-bottom-nav__link--previous {
  background: #f8fafb;
  border-color: #cbd8e4;
  color: #365a82;
}

.daily-bottom-nav__link--week {
  background: #fff7ea;
  border-color: #eccb88;
  color: #745011;
}

.daily-bottom-nav__link--next {
  background: #e8f3f2;
  border-color: #bdd8d7;
  color: var(--teal-dark);
}

.daily-bottom-nav__link--home {
  background: #f1f4f7;
  border-color: #cdd6df;
  color: var(--ink);
}

.daily-bottom-nav__link:hover,
.daily-bottom-nav__link:focus-visible {
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.2);
  outline: none;
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.18em;
}

.full-analysis ul {
  margin: 0;
  padding-left: 1.25rem;
}

.full-analysis li + li {
  margin-top: 0.45rem;
}

.problem-card__header {
  align-items: start;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: auto 1fr;
}

.problem-card__header p {
  font-size: 1.1rem;
  font-weight: 720;
  margin: 0.15rem 0 0;
}

.problem-number {
  background: #e8f3f2;
  border: 1px solid #bdd8d7;
  border-radius: 999px;
  color: var(--teal-dark);
  display: inline-flex;
  font-size: 0.88rem;
  font-weight: 800;
  min-width: 5.6rem;
  padding: 0.35rem 0.65rem;
  white-space: nowrap;
}

.math {
  font-family: "Cambria Math", Cambria, Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 650;
  white-space: nowrap;
}

.answer-check {
  margin-top: 1rem;
}

.answer-check label {
  color: var(--blue);
  display: block;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.answer-check__row {
  display: grid;
  gap: 0.6rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.answer-check input {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  min-height: 2.75rem;
  min-width: 0;
  padding: 0.6rem 0.75rem;
}

.answer-check input:focus-visible {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.18);
  outline: none;
}

.answer-check button {
  background: var(--teal);
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
}

.answer-check button:hover,
.answer-check button:focus-visible {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  outline: none;
}

.answer-feedback {
  font-weight: 800;
  margin: 0.65rem 0 0;
  min-height: 1.5rem;
}

.answer-feedback[data-result="correct"] {
  color: var(--teal-dark);
}

.answer-feedback[data-result="retry"] {
  color: #745011;
}

.answer-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.4rem 0 0;
}

.reveal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1rem;
}

.reveal-actions button,
.assessment-choice {
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 800;
  min-height: 2.75rem;
  padding: 0.62rem 0.85rem;
}

.reveal-actions button {
  background: #ffffff;
  color: var(--teal-dark);
}

.reveal-actions button:hover:not(:disabled),
.reveal-actions button:focus-visible,
.assessment-choice:hover,
.assessment-choice:focus-visible {
  box-shadow: 0 0 0 3px rgba(47, 125, 123, 0.2);
  outline: none;
}

.reveal-actions button:disabled {
  border-color: #cdd6df;
  color: #8190a0;
  cursor: not-allowed;
}

.reveal-actions button[data-open="true"] {
  background: var(--teal);
  color: #ffffff;
}

.support-panel {
  background: #f7fbfb;
  border-left: 5px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 0.8rem;
  padding: 0.85rem 1rem;
}

.support-panel strong {
  color: var(--teal-dark);
}

.self-assessment {
  background: #fff7ea;
  border: 1px solid #eccb88;
  border-radius: var(--radius);
  margin-top: 1.4rem;
  padding: clamp(1rem, 2.5vw, 1.5rem);
}

.assessment-options {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1rem;
}

.assessment-choice {
  background: #ffffff;
  color: var(--ink);
  display: inline-flex;
  gap: 0.45rem;
  justify-content: center;
  text-align: center;
}

.assessment-choice[aria-pressed="true"] {
  background: var(--rose);
  border-color: var(--rose);
  color: #ffffff;
}

.assessment-status {
  color: var(--teal-dark);
  font-weight: 800;
  margin: 0.85rem 0 0;
  min-height: 1.5rem;
}

.reminder {
  color: #745011;
  font-weight: 800;
  margin: 0.9rem 0 0;
}

@media (max-width: 760px) {
  .site-header__inner,
  .message-section,
  .problem-card__header,
  .guided-example__header,
  .answer-check__row,
  .assessment-options,
  .prediction-options,
  .function-flow,
  .context-breakdown,
  .tool-card,
  .reflection-options,
  .structured-reflection--weekly .reflection-options {
    grid-template-columns: 1fr;
  }

  .site-header__inner {
    align-items: start;
    display: grid;
  }

  .strategy-grid,
  .example-note-grid {
    grid-template-columns: 1fr;
  }

  .day-card-grid {
    grid-template-columns: 1fr;
  }

  .day-card {
    min-height: 0;
  }

  .problem-number {
    justify-self: start;
  }

  .reveal-actions button,
  .answer-check button,
  .step-demo__button,
  .desmos-link,
  .choice-check-button,
  .daily-bottom-nav__link {
    flex: 1 1 100%;
    width: 100%;
  }
}

@media (min-width: 761px) and (max-width: 1040px) {
  .day-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}