@media (max-width: 1600px) {
  :root {
    --c360-edge: 56px;
  }

  .nav-shell {
    width: calc(100% - 56px);
    min-height: 84px;
    gap: 20px;
    padding-inline: 28px;
  }

  .site-logo img,
  .custom-logo {
    width: 190px;
  }

  .nav-links {
    gap: clamp(8px, .75vw, 12px);
    font-size: 13px;
  }

  .nav-links .button,
  .nav-links .btn,
  .nav-links .nav-cta {
    min-width: 176px;
    min-height: 52px;
    padding-inline: 20px;
  }

  .nav-links .nav-cta-access {
    min-width: 110px;
  }

  .hero {
    min-height: 0;
  }

  .hero-grid {
    min-height: 0;
  }

  .hero-actions {
    gap: 18px;
  }

  .pillars-grid {
    gap: 36px;
  }

  .pillar-card,
  .pillars-grid > article {
    padding-inline: 26px;
  }

  .experience-grid {
    gap: 54px;
  }

  .subject-grid {
    gap: 16px 24px;
  }

  .plans-grid {
    gap: 44px;
  }
}

@media (max-width: 1240px) {
  :root {
    --c360-edge: 42px;
  }

  body.admin-bar .site-header {
    top: 32px;
  }

  .site-header {
    position: sticky;
    top: 0;
    padding-top: 12px;
  }

  .nav-shell {
    position: relative;
    width: calc(100% - 34px);
    min-height: 72px;
    padding: 9px 18px 9px 26px;
    border-radius: 40px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-toggle[aria-expanded="true"] > span[aria-hidden="true"]:nth-of-type(2) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] > span[aria-hidden="true"]:nth-of-type(3) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] > span[aria-hidden="true"]:nth-of-type(4) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .primary-navigation {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: min(390px, calc(100vw - 34px));
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
  }

  .nav-links {
    width: 100%;
    padding: 14px 18px 18px;
    display: grid;
    align-items: stretch;
    justify-content: stretch;
    gap: 0;
    border: var(--c360-border);
    border-radius: 24px;
    background: var(--c360-white);
    box-shadow: 7px 8px 0 #000;
    font-size: 15px;
  }

  .primary-navigation.is-open,
  body.menu-open .primary-navigation {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    width: 100%;
    min-height: 38px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #d9dce2;
    text-align: center;
  }

  .nav-links a:not(.button):not(.btn):not(.nav-cta).is-active {
    background: rgba(244, 0, 70, .08);
  }

  .nav-links a:not(.button):not(.btn):not(.nav-cta).is-active::after {
    right: 18px;
    bottom: 2px;
    left: 18px;
  }

  .nav-links .button,
  .nav-links .btn,
  .nav-links .nav-cta {
    width: 100%;
    min-width: 0;
    min-height: 52px;
    margin-top: 12px;
    border-bottom: var(--c360-border);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .8fr);
    gap: 26px;
  }

  .hero-copy h1 {
    font-size: clamp(54px, 5.8vw, 70px);
  }

  .hero-actions .button,
  .hero-actions .btn,
  .hero-actions .button:first-child,
  .hero-actions .btn:first-child,
  .hero-actions .button:last-child,
  .hero-actions .btn:last-child {
    min-width: 0;
  }

  .profile-cards {
    gap: 22px;
  }

  .profile .section-title,
  .profile h2 {
    margin-top: 76px;
  }

  .pillars-decoration,
  .pillars-heading > img,
  .pillars-laptop {
    width: 43%;
  }

  .pillars-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .experience-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .subject-grid { margin-top: 48px; }

  .experience-collage {
    min-height: 650px;
  }

  .technology {
    min-height: 0;
  }

  .benefit-bar {
    padding-inline: 36px;
  }

  .benefit-item,
  .benefit-bar > * {
    font-size: 16px;
  }

  .plans-header,
  .plans-heading {
    gap: 50px;
  }

  .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(460px, 540px);
    gap: 50px;
  }

  .contact-form {
    padding-inline: 34px;
  }
}

@media (max-width: 782px) {
  body.admin-bar .site-header {
    top: 46px;
  }
}

@media (max-width: 768px) {
  :root {
    --c360-edge: 24px;
    --c360-shadow: 4px 5px 0 #000;
  }

  html {
    scroll-padding-top: 96px;
  }

  .section-kicker,
  .eyebrow {
    min-height: 36px;
    padding: 7px 18px;
    font-size: 12px;
    box-shadow: 3px 4px 0 #000;
  }

  .section-title {
    font-size: clamp(38px, 9.5vw, 58px);
  }

  .site-logo img,
  .custom-logo {
    width: 142px;
  }

  .hero {
    min-height: 0;
    padding: 48px 0 50px;
  }

  .hero-grid {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-copy .eyebrow,
  .hero-copy .section-kicker {
    margin-bottom: 28px;
  }

  .hero-copy h1 {
    font-size: clamp(54px, 13vw, 82px);
  }

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

  .hero-copy p {
    margin-top: 24px;
    font-size: 15px;
  }

  .hero-actions {
    gap: 14px;
    margin-top: 28px;
  }

  .hero-actions .button,
  .hero-actions .btn {
    min-height: 52px;
    padding: 11px 19px;
    font-size: 13px;
  }

  .hero-visual {
    min-height: 470px;
  }

  .hero-visual > img {
    width: min(100%, 560px);
    max-height: 520px;
  }

  .brand-ribbon-track {
    gap: 32px;
    font-size: 15px;
  }

  .profile {
    min-height: 0;
    padding: 52px 0 78px;
  }

  .profile-heading-official,
  .profile-body-official {
    display: none;
  }

  .profile-mobile-copy {
    display: block;
    text-align: center;
  }

  .profile-mobile-copy h3 {
    max-width: 680px;
    margin: 34px auto 0;
    color: #fff;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(35px, 7.5vw, 56px);
    line-height: .98;
  }

  .profile-mobile-copy .profile-answer {
    margin-top: 24px;
    color: var(--c360-white);
    font-size: clamp(23px, 5.8vw, 34px);
  }

  .profile-mobile-copy mark {
    padding: 0 .12em;
    border-radius: 5px;
    box-shadow: 3px 4px 0 #000;
    background: var(--c360-yellow);
    color: var(--c360-ink);
  }

  .profile-mobile-copy > p:not(.eyebrow) {
    max-width: 620px;
    margin: 32px auto 0;
    color: #fff;
    font-size: 14px;
  }

  .profile-mobile-copy > strong {
    display: inline-block;
    margin-top: 18px;
    padding: 8px 16px;
    border: 2px solid #000;
    border-radius: 999px;
    box-shadow: 3px 4px 0 #000;
    background: #fff;
    color: var(--c360-pink);
    font-size: 12px;
  }

  .profile .section-title,
  .profile h2 {
    margin-top: 70px;
    font-size: clamp(39px, 8.3vw, 58px);
  }

  .profile .section-title::before,
  .profile h2::before {
    font-size: 44px;
    transform: translateY(-55px);
  }

  .profile blockquote,
  .profile .profile-copy {
    margin-top: 32px;
    font-size: 14px;
  }

  .profile cite,
  .profile .profile-source {
    max-width: 100%;
    font-size: 12px;
  }

  .profile-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }

  .pillars {
    min-height: 0;
    padding: 40px 0 76px;
  }

  .pillars-header,
  .pillars-heading {
    min-height: 0;
    padding-bottom: 36px;
  }

  .pillars-heading-official {
    min-height: 455px;
    padding-bottom: 0;
  }

  .pillars-heading-official > img.pillars-heading-art {
    display: none;
  }

  .pillars-mobile-copy {
    display: block;
    margin-top: 26px;
  }

  .pillars-mobile-copy h3 {
    margin-top: 28px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(36px, 8vw, 54px);
    line-height: .96;
  }

  .pillars-mobile-copy h3 span { color: var(--c360-pink); }

  .pillars-mobile-copy > p:last-child {
    max-width: 560px;
    margin-top: 28px;
    font-size: 14px;
  }

  .pillars-heading-official > img.pillars-heading-art {
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    margin: 0;
  }

  .pillars-heading-official > .pillars-laptop {
    top: 175px;
    right: 50%;
    width: min(70%, 409px);
    transform: translateX(50%);
  }

  .pillars.uses-editable-title .pillars-heading-official {
    min-height: 0;
    display: block;
  }

  .pillars.uses-editable-title .pillars-editable-heading {
    width: 100%;
  }

  .pillars.uses-editable-title .pillars-heading-official > .pillars-laptop {
    position: relative;
    top: auto;
    right: auto;
    width: min(80%, 409px);
    margin: 42px auto 0;
    transform: none;
  }

  .pillars .section-title,
  .pillars h2 {
    max-width: 70%;
    margin-top: 34px;
    font-size: clamp(40px, 9.5vw, 58px);
  }

  .pillars .section-copy {
    max-width: 74%;
    margin-top: 42px;
    font-size: 13px;
  }

  .pillars-decoration {
    top: 14px;
    width: 38%;
  }

  .pillars-grid {
    margin-top: 54px;
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .pillar-card,
  .pillars-grid > article {
    min-height: 160px;
  }

  .experience {
    min-height: 0;
    padding: 76px 0;
  }

  .experience-grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .experience .section-title,
  .experience h2 {
    margin-top: 34px;
    font-size: clamp(42px, 10vw, 62px);
  }

  .subject-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .experience-collage {
    min-height: 600px;
  }

  .technology {
    padding: 76px 0;
  }

  .technology::before {
    width: 620px;
    height: 620px;
  }

  .technology .section-title,
  .technology h2 {
    margin-top: 38px;
    font-size: clamp(42px, 10vw, 60px);
  }

  .technology .section-copy {
    margin-top: 22px;
    font-size: 14px;
  }

  .technology-callout {
    min-width: min(90%, 400px);
    margin-top: 50px;
    font-size: 16px;
  }

  .technology-cards {
    margin-top: 64px;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .technology-card,
  .technology-cards > * {
    width: min(100%, 520px);
    margin-inline: auto;
  }

  .benefit-bar {
    margin-top: 44px;
    padding: 28px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .plans {
    min-height: 0;
    padding: 76px 0 88px;
  }

  .plans-header,
  .plans-heading {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .plans .section-title,
  .plans h2 {
    margin-top: 34px;
    font-size: clamp(34px, 7vw, 54px);
  }

  .plans-intro-visual {
    width: min(100%, 600px);
    margin-inline: auto;
  }

  .plans-grid {
    margin-top: 44px;
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .plans-banner {
    width: calc(100% - 48px);
    min-height: 170px;
    margin-top: 58px;
    margin-bottom: -42px;
  }

  .contact {
    min-height: 0;
    padding: 100px 0 76px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .contact-copy h2 {
    font-size: clamp(54px, 12.5vw, 82px);
  }

  .contact-copy p {
    margin-top: 36px;
    font-size: 18px;
  }

  .contact-form {
    width: min(100%, 643px);
    min-height: 0;
    margin-inline: auto;
  }

  .site-footer {
    min-height: 0;
    padding: 0;
  }

  .footer-inner,
  .site-footer-inner {
    flex-wrap: wrap;
    font-size: 13px;
  }
}

@media (max-width: 600px) {
  body.admin-bar .site-header {
    top: 0;
  }

  .site-header {
    padding-top: 8px;
  }

  .nav-shell {
    width: calc(100% - 20px);
    min-height: 64px;
    padding: 7px 11px 7px 18px;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
  }

  .primary-navigation {
    top: calc(100% + 10px);
    width: 100%;
  }

  .hero-copy h1 {
    font-size: clamp(48px, 14.5vw, 70px);
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    min-height: 390px;
  }

  .brand-ribbon {
    height: 76px;
    aspect-ratio: auto;
    margin-top: -42px;
  }

  .brand-ribbon-track {
    animation-duration: 18s;
  }

  .brand-ribbon-group {
    gap: 20px;
    padding-right: 20px;
  }

  .brand-ribbon-group .ribbon-item-1 { width: 150px; }
  .brand-ribbon-group .ribbon-item-2 { width: 32px; }
  .brand-ribbon-group .ribbon-item-3 { width: 144px; }
  .brand-ribbon-group .ribbon-item-4 { width: 78px; }

  .brand-ribbon-label {
    min-width: 78px;
    min-height: 34px;
    padding-inline: 8px;
    font-size: 16px;
  }

  .profile mark,
  .profile em {
    padding-inline: 8px;
  }

  .profile-cards {
    gap: 20px 14px;
  }

  .pillar-card-header,
  .pillar-card-heading {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .pillar-number,
  .pillar-card-heading > span {
    width: 58px;
    font-size: 40px;
  }

  .pillar-number-image,
  .pillar-number-04::before {
    height: 30px;
  }

  .pillar-number-image {
    width: auto;
  }

  .pillar-number-04::before {
    width: 49.72px;
  }

  .pillar-card h3,
  .pillars-grid article h3 {
    font-size: 20px;
  }

  .subject-grid {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    grid-auto-flow: row;
    gap: 14px;
  }

  .experience-collage {
    min-height: 480px;
  }

  .contact-form {
    padding: 34px 24px 32px;
    border-radius: 18px;
    box-shadow: 8px 10px 0 #000;
  }

  .contact-form .form-grid,
  .contact-form-grid,
  .contact-form__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .contact-form-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .contact-form .form-field,
  .contact-form-grid > p,
  .contact-form__field {
    grid-column: 1;
  }

  .contact-form__actions {
    display: block;
  }

  .contact-form .wpcf7-submit {
    width: 100%;
    min-width: 0;
    white-space: normal;
  }

  .contact-form .submit-row,
  .contact-form form > p:last-of-type {
    justify-content: stretch;
  }

  .footer-inner,
  .site-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer-brands {
    width: 100%;
    flex-wrap: wrap;
  }

  .footer-contact { max-width: 100%; }

  .footer-art-shell { display: none; }

  .footer-mobile {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 34px 26px 40px;
    background: var(--c360-pink);
  }

  .footer-mobile-brand-lockup {
    display: block;
    width: 100%;
    height: auto;
  }

  .footer-mobile-brands {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(96px, 1fr);
    align-items: start;
    gap: 18px;
    width: min(100%, 560px);
  }

  .footer-mobile-santillana {
    display: block;
    width: 100%;
    margin-top: 7%;
  }

  .footer-mobile-santillana img {
    display: block;
    width: 100%;
    height: auto;
  }

  .footer-mobile-social {
    display: flex;
    align-items: center;
    gap: 24px;
  }

  .footer-mobile-social a,
  .footer-mobile-social img {
    display: block;
    width: 30px;
    height: 30px;
  }

  .footer-mobile-line {
    width: 100%;
    height: 1px;
  }

  .footer-mobile-contact {
    display: block;
    width: 100%;
    overflow: hidden;
  }

  .footer-mobile-phone { height: 58px; }
  .footer-mobile-phone img { width: 1110px; max-width: none; }
  .footer-mobile-address { height: 70px; }
  .footer-mobile-address img { width: 700px; max-width: none; }

  .plan-card-copy { inset: 11% 5% 10% 27%; }
}

@media (max-width: 430px) {
  :root {
    --c360-edge: 18px;
  }

  .plan-card,
  .plans-grid > * {
    min-height: 245px;
  }

  .plan-card-panel {
    left: 4%;
  }

  .plan-card-photo {
    left: -6%;
    width: 32%;
  }

  .plan-card-copy {
    inset: 10% 4% 9% 29%;
  }

  .plan-card-copy h3 {
    font-size: 16px;
  }

  .plan-card-features li {
    gap: 7px;
    font-size: 10.5px;
  }

  .site-logo img,
  .custom-logo {
    width: 126px;
  }

  .hero {
    padding-top: 36px;
  }

  .hero-copy h1 {
    font-size: clamp(45px, 13.7vw, 59px);
    line-height: .92;
  }

  .hero-visual {
    min-height: 340px;
  }

  .brand-ribbon-track {
    font-size: 13px;
  }

  .profile {
    padding-top: 44px;
  }

  .profile .section-title,
  .profile h2 {
    font-size: 37px;
  }

  .profile cite,
  .profile .profile-source {
    padding-inline: 15px;
  }

  .profile-cards {
    grid-template-columns: 1fr;
  }

  .profile-card,
  .profile-cards > * {
    width: min(100%, 280px);
    margin-inline: auto;
  }

  .pillars .section-title,
  .pillars h2,
  .pillars .section-copy {
    max-width: 100%;
  }

  .pillars-decoration,
  .pillars-heading > img,
  .pillars-laptop {
    position: relative;
    top: auto;
    width: min(100%, 360px);
    margin: 30px auto 0;
  }

  .pillars-heading {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
  }

  .pillars-heading-official {
    min-height: 335px;
  }

  .pillars-heading-official > img.pillars-heading-art {
    position: absolute;
    width: 100%;
    margin: 0;
  }

  .pillars-heading-official > .pillars-laptop {
    position: absolute;
    top: 105px;
    right: 50%;
    width: min(88%, 330px);
    margin: 0;
    transform: translateX(50%);
  }

  .pillar-card,
  .pillars-grid > article {
    padding: 26px 22px 22px;
  }

  .experience .section-title,
  .experience h2,
  .technology .section-title,
  .technology h2,
  .plans .section-title,
  .plans h2 {
    font-size: clamp(26px, 7.7vw, 38px);
  }

  .experience-collage {
    min-height: 410px;
  }

  .technology-callout {
    width: 100%;
    min-width: 0;
  }

  .benefit-bar {
    padding: 23px 18px;
  }

  .benefit-item,
  .benefit-bar > * {
    gap: 14px;
    font-size: 14px;
  }

  .benefit-item img,
  .benefit-icon {
    width: 48px;
    flex-basis: 48px;
  }

  .plans-banner {
    width: min(calc(100% + 24px), calc(100vw - 12px));
    min-height: 160px;
    margin-bottom: -145px;
  }

  .plans-banner-panel {
    inset-block: 26px 20px;
  }

  .plans-banner-copy {
    width: 76%;
    padding: 16px 18px;
  }

  .plans-banner-copy strong {
    font-size: 14px;
  }

  .plans-banner-copy span {
    font-size: 10px;
  }

  .plans-banner-device {
    right: 1%;
    width: 25%;
  }

  .plans-banner-shape-blue {
    right: 18%;
    width: 48px;
  }

  .plans-banner-shape-green {
    width: 56px;
    height: 60px;
  }

  .contact-copy h2 {
    font-size: 49px;
  }

  .contact-form h2,
  .contact-form h3,
  .contact-form-title {
    font-size: clamp(18px, 5vw, 29px);
  }
}

@media (max-width: 390px) {
  .hero-copy h1 {
    font-size: 50px;
  }

  .hero-visual {
    min-height: 310px;
  }

  .profile .section-title,
  .profile h2 {
    font-size: 34px;
  }

  .contact-copy h2 {
    font-size: 45px;
  }
}

@media (max-width: 360px) {
  :root {
    --c360-edge: 15px;
  }

  .site-logo img,
  .custom-logo {
    width: 115px;
  }

  .hero-copy h1 {
    font-size: 46px;
  }

  .hero-visual {
    min-height: 285px;
  }

  .profile .section-title,
  .profile h2 {
    font-size: 32px;
  }

  .pillar-card-header,
  .pillar-card-heading {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .pillar-number,
  .pillar-card-heading > span {
    width: 52px;
  }

  .contact-copy h2 {
    font-size: 41px;
  }

  .contact-form {
    padding-inline: 18px;
  }
}