:root {
  --color-white: #ffffff;
  --color-black: #000000;
  --color-border: #d0d3d4;
  --color-surface-alt: #d6d2c4;
  --color-text-secondary: #686767;
  --color-teal: #007a78;
  --color-teal-dark: #003b49;
  --color-teal-focus: #00bfb2;
  --color-link: #3873e6;
  --color-link-visited: #1d4289;
  --color-heading-accent: #1b365d;
  --color-accent-purple: #5d3754;
  --color-accent-pink: #e56db1;
  --color-error: #d3273e;
  --color-warning: #dc582a;
  --color-success: #007a78;
  --color-info: #3873e6;
  --color-accent-yellow: #f2c75c;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow-1: 0 8px 24px rgba(0, 0, 0, 0.05);
  --shadow-2: 0 18px 40px rgba(0, 59, 73, 0.08);
  --content-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--color-black);
  background: var(--color-white);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

a:visited {
  color: var(--color-link-visited);
}

a:hover,
a:focus-visible {
  color: var(--color-heading-accent);
}

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -56px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-teal-dark);
  color: var(--color-white);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: var(--space-4);
}

.site-frame {
  min-height: 100vh;
}

.container {
  width: calc(100% - 64px);
  margin: 0 auto;
}

.section {
  padding: var(--space-8) 0;
  scroll-margin-top: 72px;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.section-alt {
  background: linear-gradient(180deg, rgba(214, 210, 196, 0.4), rgba(214, 210, 196, 0.2));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: 72px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  min-height: 72px;
  padding: 0;
}

.brand-logo {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-black);
  flex: 0 0 auto;
}

.brand-logo--header {
  justify-content: center;
}

.brand-logo__topline {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brand-logo__bulb {
  width: 32px;
  min-width: 32px;
  height: 32px;
  object-fit: contain;
  flex: 0 0 32px;
}

.brand-logo__wordmark-image {
  display: block;
  width: 184px;
  height: 25px;
  object-fit: contain;
}

.brand-tag {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  line-height: 1.2;
}

.menu-toggle {
  display: none;
  min-height: 48px;
  min-width: 56px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-black);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  box-shadow: var(--shadow-1);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.menu-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.menu-toggle__icon span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.menu-toggle__label {
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  align-self: center;
}

.nav-link {
  position: relative;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  color: var(--color-black);
  text-decoration: none;
}

.nav-link.is-active,
.nav-link[aria-current="true"] {
  color: var(--color-black);
  font-weight: 700;
}

.nav-link.is-active::after,
.nav-link[aria-current="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 3px;
  background: var(--color-teal);
  border-radius: 999px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-5);
  border: 2px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button:focus-visible,
.menu-toggle:focus-visible,
.nav-link:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-teal-focus);
  outline-offset: 2px;
  box-shadow: 0 0 0 1px var(--color-black);
}

.button-primary {
  background: var(--color-teal);
  color: var(--color-white) !important;
  box-shadow: var(--shadow-2);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-teal-dark);
}

.button-secondary {
  background: var(--color-white);
  color: var(--color-teal) !important;
  border-color: var(--color-teal);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--color-border);
  text-decoration: none;
}

.button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
}

.button-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.nav-cta {
  margin-left: var(--space-4);
  text-decoration: none;
}

.hero {
  min-height: 60vh;
  padding: var(--space-6) 0 0;
  background: var(--color-white);
}

.hero-grid,
.contact-grid,
.about-layout {
  display: grid;
  gap: var(--space-6);
}

.hero-grid {
  grid-template-columns: 1fr;
  align-items: center;
}

.contact-grid {
  grid-template-columns: 1fr;
  align-items: start;
  gap: var(--space-5);
}

.about-layout {
  grid-template-columns: 1fr;
  align-items: start;
}

.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-heading-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--color-black);
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.8rem, 5vw, 4.9rem);
  max-width: none;
}

.hero-line {
  display: block;
}

.hero-line--primary {
  white-space: nowrap;
}

.hero-line--secondary {
  margin-top: var(--space-2);
}

h2 {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
}

h3 {
  font-size: 1.35rem;
}

p {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.hero-text {
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  max-width: none;
  margin-top: var(--space-4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.hero-figure {
  margin: var(--space-4) 0 0;
  width: 100%;
  max-width: none;
  overflow: hidden;
  max-height: none;
  background: var(--color-white);
  line-height: 0;
}

.hero-image {
  width: 92%;
  height: auto;
  object-fit: contain;
  margin-top: 0;
  margin-left: auto;
  margin-right: auto;
}

.hero-note,
.section-intro,
.form-intro {
  color: var(--color-black);
  font-size: 0.98rem;
}

.section-intro {
  color: var(--color-text-secondary);
}

.hero-note {
  margin-top: var(--space-4);
  max-width: 48ch;
}

.hero-panel {
  display: grid;
  gap: var(--space-5);
  align-self: stretch;
}

.hero-card,
.content-card,
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.hero-card,
.content-card,
.service-card,
.form-card {
  padding: var(--space-5);
}

.hero-card-primary {
  border-top: 6px solid var(--color-teal);
}

.hero-card-secondary {
  border-top: 6px solid var(--color-heading-accent);
}

.card-label {
  color: var(--color-heading-accent);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.hero-list,
.service-points,
.expectation-list {
  margin: 0;
  padding-left: 1.25rem;
  display: grid;
  gap: var(--space-3);
  color: var(--color-black);
}

.hero-list li,
.service-points li,
.expectation-list li {
  line-height: 1.5;
}

.section-heading {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
}

.section-heading--centered {
  justify-items: center;
  text-align: center;
}

.about-editorial {
  max-width: none;
}

.about-card {
  width: 100%;
  padding: var(--space-5);
}

.about-callout {
  border-top: 6px solid var(--color-accent-purple);
  display: none;
}

#about.section {
  border-top: none;
  margin-top: 0;
  padding-top: var(--space-4);
  padding-bottom: var(--space-6);
  scroll-margin-top: 72px;
  position: relative;
}

#what-we-do.section {
  padding-top: var(--space-5);
}

#see-in-action.section {
  padding-top: var(--space-5);
}

#contact.section {
  padding-top: var(--space-5);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.service-card {
  display: grid;
  gap: var(--space-4);
  align-content: start;
  min-height: 100%;
  min-height: 180px;
  border-top: 6px solid var(--color-teal);
}

.service-card:nth-child(1) {
  border-top-color: var(--color-teal);
}

.service-card:nth-child(2) {
  border-top-color: var(--color-link);
}

.service-card:nth-child(3) {
  border-top-color: var(--color-accent-purple);
}

.service-card:nth-child(4) {
  border-top-color: var(--color-heading-accent);
}

.service-card-highlight {
  border-top-color: var(--color-heading-accent);
}

.video-showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.video-card {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.video-card-teacher {
  border-top: 6px solid var(--color-teal);
}

.video-card-student {
  border-top: 6px solid var(--color-link);
}

.video-frame {
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-black);
  box-shadow: var(--shadow-1);
}

.video-frame video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--color-black);
}

.video-meta {
  display: grid;
  gap: var(--space-3);
}

.video-meta p {
  color: var(--color-text-secondary);
}

.video-meta .button {
  width: fit-content;
}

.contact-copy {
  display: grid;
  gap: var(--space-3);
  max-width: none;
}

.contact-details strong,
.footer-brand,
label {
  color: var(--color-black);
}

.contact-copy .section-heading {
  margin-bottom: 0;
}

.contact-subhead {
  max-width: none;
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  color: var(--color-text-secondary);
}

.form-card {
  background: var(--color-white);
  width: 100%;
  max-width: none;
  justify-self: stretch;
}

.form-intro {
  margin-bottom: var(--space-4);
}

.contact-form {
  display: grid;
  gap: var(--space-4);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.field-group {
  display: grid;
  gap: var(--space-2);
}

.field-required {
  color: var(--color-black);
  font-size: 0.92rem;
  font-weight: 400;
}

input,
textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-black);
}

input:focus,
textarea:focus {
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(0, 191, 178, 0.22);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.field-group.has-error input,
.field-group.has-error textarea {
  border-color: var(--color-error);
}

.field-help {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.field-help:empty {
  display: none;
}

.field-group.has-error .field-help {
  display: block;
  color: var(--color-error);
  font-weight: 700;
}

.submit-button {
  width: fit-content;
  margin-top: 0;
}

.form-status {
  font-weight: 700;
}

.form-status:empty {
  display: none;
}

.form-status.is-error {
  color: var(--color-error);
}

.form-status.is-success {
  color: var(--color-success);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-6) 0;
}

.footer-brand {
  font-weight: 700;
  margin-bottom: var(--space-1);
  line-height: 1.1;
}

.footer-inner > div p:last-child {
  line-height: 1.25;
}

@media (max-width: 1023px) {
  .container {
    width: calc(100% - 48px);
  }

  .hero-grid,
  .contact-grid,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-callout {
    display: none;
  }

  .form-card {
    justify-self: stretch;
  }
}

@media (min-width: 600px) and (max-width: 899px) {
  .header-inner {
    flex-wrap: nowrap;
    align-items: center;
    min-height: 64px;
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .brand-logo {
    flex: 1 1 auto;
    min-width: 0;
  }

  .menu-toggle {
    display: inline-flex;
    border-color: var(--color-teal);
    color: var(--color-teal);
    background: var(--color-white);
    box-shadow: none;
    align-self: center;
  }

  .site-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: var(--shadow-1);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-link.is-active::after,
  .nav-link[aria-current="true"]::after {
    bottom: 4px;
  }
}

@media (max-width: 599px) {
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding: var(--space-7) 0;
    scroll-margin-top: 64px;
  }

  .site-header {
    min-height: 64px;
  }

  .header-inner {
    flex-wrap: nowrap;
    align-items: center;
    min-height: 64px;
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .brand-logo {
    flex: 1 1 auto;
    min-width: 0;
  }

  .menu-toggle {
    display: inline-flex;
    border-color: var(--color-teal);
    color: var(--color-teal);
    background: var(--color-white);
    box-shadow: none;
    align-self: center;
  }

  .site-nav {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: var(--shadow-1);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-link.is-active::after,
  .nav-link[aria-current="true"]::after {
    bottom: 4px;
  }

  .nav-cta {
    margin-left: 0;
  }

  .services-grid,
  .video-showcase-grid,
  .field-grid,
  .footer-inner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero {
    min-height: auto;
    padding: var(--space-5) 0 0;
  }

  .hero-figure {
    margin-top: var(--space-5);
    margin-bottom: 0;
  }

  .hero-image {
    width: 100%;
  }

  #about.section {
    margin-top: 0;
    padding-top: var(--space-4);
    scroll-margin-top: 64px;
  }

  .hero-actions .button,
  .submit-button {
    width: 100%;
  }

  .video-meta .button {
    justify-self: center;
  }

  .footer-inner {
    justify-items: center;
    text-align: center;
  }

  .brand-logo__wordmark-image {
    width: 160px;
    height: 22px;
  }

  .brand-tag {
    font-size: 0.8rem;
  }

  h1 {
    max-width: none;
    font-size: clamp(2rem, 10vw, 2.25rem);
  }

  .hero-line--primary {
    white-space: normal;
  }
}

@media (min-width: 600px) and (max-width: 1023px) {
  .container {
    width: calc(100% - 48px);
  }

  .services-grid,
  .video-showcase-grid,
  .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1440px) {
  .container {
    width: calc(100% - 80px);
  }
}