:root {
  --color-bg: #07111f;
  --color-bg-soft: #0b1728;
  --color-bg-elevated: #101d30;
  --color-surface: #ffffff;
  --color-surface-soft: #f3f7fb;
  --color-primary: #20b7f5;
  --color-primary-strong: #0798d4;
  --color-secondary: #3278ff;
  --color-text: #102033;
  --color-text-inverse: #f6f9fc;
  --color-muted: #617087;
  --color-muted-inverse: #9fb0c7;
  --color-border: #dfe7f0;
  --color-border-dark: rgba(178, 203, 230, 0.16);
  --color-success: #25a765;
  --color-whatsapp: #21c76a;
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --container: 1240px;
  --header-height: 76px;
  --shadow-sm: 0 12px 30px rgba(15, 31, 51, 0.07);
  --shadow-md: 0 24px 60px rgba(15, 31, 51, 0.12);
  --transition: 180ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea,
select {
  font: inherit;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

h1 {
  max-width: 820px;
  margin-bottom: 26px;
  font-size: clamp(2.65rem, 5.3vw, 5rem);
}

h2 {
  max-width: 800px;
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.4vw, 3.35rem);
}

h3 {
  margin-bottom: 14px;
  font-size: clamp(1.25rem, 1.65vw, 1.65rem);
  letter-spacing: -0.025em;
}

p {
  margin-bottom: 20px;
}

ul,
ol {
  padding: 0;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #03121d;
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid #55caff;
  outline-offset: 4px;
}

.section-light,
.section-white,
.section-dark,
.final-cta {
  padding-block: clamp(76px, 9vw, 124px);
}

.section-light {
  background: var(--color-surface-soft);
}

.section-white {
  background: var(--color-surface);
}

.section-dark {
  background: var(--color-bg-soft);
  color: var(--color-text-inverse);
}

.eyebrow {
  margin-bottom: 15px;
  color: var(--color-primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow-dark {
  color: #057cac;
}

.section-heading {
  margin-bottom: clamp(36px, 5vw, 58px);
}

.section-heading > p:last-child {
  max-width: 670px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.section-heading-row h2 {
  margin-bottom: 0;
}

.section-heading-inverse > p:last-child {
  color: var(--color-muted-inverse);
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 21px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--color-primary);
  color: #021522;
  box-shadow: 0 12px 24px rgba(32, 183, 245, 0.2);
}

.button-primary:hover {
  background: #51c9fa;
  box-shadow: 0 15px 30px rgba(32, 183, 245, 0.28);
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.24);
  color: var(--color-text-inverse);
}

.button-ghost:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

.button-outline {
  border-color: #bfd0df;
  color: var(--color-text);
}

.button-outline:hover {
  border-color: #8ea8bf;
  background: #f8fbfd;
}

.button-small {
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.82rem;
}

.button-whatsapp {
  background: var(--color-whatsapp);
  color: #031d10 !important;
}

.text-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  color: #087da9;
  font-size: 0.9rem;
  font-weight: 800;
}

.text-link span {
  transition: transform var(--transition);
}

.text-link:hover span {
  transform: translateX(4px);
}

.text-link-light {
  color: var(--color-primary);
}

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid rgba(183, 207, 231, 0.12);
  background: rgba(7, 17, 31, 0.9);
  color: var(--color-text-inverse);
  backdrop-filter: blur(18px);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.is-scrolled {
  background: rgba(7, 17, 31, 0.97);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.nav-shell {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 47px;
  height: auto;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  gap: 1px;
  line-height: 1;
}

.brand-copy strong {
  font-size: 0.86rem;
  letter-spacing: 0.06em;
}

.brand-copy small {
  color: var(--color-muted-inverse);
  font-size: 0.54rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2vw, 28px);
}

.site-nav > a:not(.button) {
  color: #c0cede;
  font-size: 0.8rem;
  font-weight: 700;
  transition: color var(--transition);
}

.site-nav > a:not(.button):hover {
  color: #ffffff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--color-border-dark);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle > span:not(.sr-only) {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: #ffffff;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: calc(780px - var(--header-height));
  padding-block: clamp(84px, 9vw, 132px);
  background:
    radial-gradient(circle at 82% 22%, rgba(32, 183, 245, 0.15), transparent 28%),
    radial-gradient(circle at 10% 90%, rgba(50, 120, 255, 0.12), transparent 32%),
    var(--color-bg);
  color: var(--color-text-inverse);
}

.hero-grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(128, 162, 197, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(128, 162, 197, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to right, transparent 0%, #000 44%, #000 100%);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  align-items: center;
  gap: clamp(54px, 7vw, 104px);
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: #afbed0;
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  line-height: 1.65;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 34px;
  list-style: none;
}

.tech-list li {
  padding: 8px 12px;
  border: 1px solid rgba(162, 191, 221, 0.2);
  border-radius: 999px;
  background: rgba(12, 31, 51, 0.68);
  color: #d7e3f0;
  font-size: 0.76rem;
  font-weight: 700;
}

.hero-actions,
.live-actions,
.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.business-link {
  margin: 30px 0 0;
  color: #7f93aa;
  font-size: 0.82rem;
}

.business-link a {
  color: #c6d8ea;
  font-weight: 800;
}

.business-link a:hover {
  color: var(--color-primary);
}

.learning-map {
  position: relative;
  padding: 24px;
  border: 1px solid rgba(112, 177, 222, 0.22);
  border-radius: var(--radius-lg);
  background: rgba(11, 27, 47, 0.82);
  box-shadow: 0 38px 90px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(12px);
}

.learning-map::before {
  position: absolute;
  top: -1px;
  left: 42px;
  width: 80px;
  height: 2px;
  background: var(--color-primary);
  content: "";
}

.learning-map-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-muted-inverse);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.live-dot {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #83d8ae;
}

.live-dot::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #39d78a;
  box-shadow: 0 0 0 5px rgba(57, 215, 138, 0.09);
  content: "";
}

.learning-map > p {
  margin: 25px 0 16px;
  color: #eff7ff;
  font-size: 1.05rem;
  font-weight: 700;
}

.learning-map ol {
  margin: 0;
  list-style: none;
}

.learning-map li {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 14px;
  min-height: 68px;
  border-top: 1px solid rgba(185, 208, 233, 0.12);
}

.learning-map li > span {
  color: var(--color-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
}

.learning-map li div {
  display: grid;
  gap: 2px;
}

.learning-map li strong {
  color: #edf7ff;
  font-size: 0.9rem;
}

.learning-map li small {
  color: #8296ae;
  font-size: 0.72rem;
}

/* Live course */
.course-status {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  padding: 10px 14px;
  border: 1px solid #b9e2cc;
  border-radius: 999px;
  background: #eaf8f0;
  color: #17633c;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-status > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
}

.course-status.status-upcoming {
  border-color: #bbdceb;
  background: #e9f6fc;
  color: #075d84;
}

.course-status.status-upcoming > span {
  background: var(--color-primary-strong);
}

.course-status.status-tba {
  border-color: #d8e0e9;
  background: #f0f4f7;
  color: #5e6c7b;
}

.course-status.status-tba > span {
  background: #8492a1;
}

.live-card {
  overflow: hidden;
  border: 1px solid #d7e2ec;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.live-media {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 1;
  background: #06152a;
}

.live-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.live-media:hover img {
  transform: scale(1.012);
}

.live-details {
  display: grid;
  grid-template-columns: minmax(240px, 1.25fr) minmax(300px, 1fr);
  gap: 40px clamp(32px, 5vw, 70px);
  padding: clamp(28px, 4.5vw, 56px);
}

.live-details > div:first-child p:last-child {
  max-width: 550px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.course-kicker,
.course-category {
  margin-bottom: 9px;
  color: #087da9;
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.live-details h3 {
  font-size: clamp(1.65rem, 2.5vw, 2.45rem);
}

.course-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 28px;
  margin: 0;
}

.course-facts div {
  padding-left: 14px;
  border-left: 2px solid #cde7f4;
}

.course-facts dt {
  margin-bottom: 3px;
  color: var(--color-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.course-facts dd {
  color: var(--color-text);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.45;
}

.price-row {
  display: flex;
  align-items: flex-end;
  gap: 38px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.price-row > div {
  display: grid;
  gap: 1px;
}

.price-row span,
.price-row small {
  color: var(--color-muted);
  font-size: 0.72rem;
}

.price-row strong {
  color: #08698f;
  font-size: 2rem;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.price-row .regular-price strong {
  color: #7b8999;
  font-size: 1.2rem;
}

.live-actions {
  grid-column: 1 / -1;
}

.payment-hint {
  grid-column: 1 / -1;
  margin: -20px 0 0;
  color: var(--color-muted);
  font-size: 0.8rem;
}

.payment-hint a {
  color: #087da9;
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* Course catalog */
.course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.course-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.course-card:hover {
  border-color: #abd5e7;
  box-shadow: var(--shadow-sm);
  transform: translateY(-5px);
}

.course-image {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 1;
  background: #0a1a2e;
}

.course-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.course-card:hover .course-image img {
  transform: scale(1.018);
}

.course-body {
  display: flex;
  min-height: 310px;
  flex: 1;
  flex-direction: column;
  padding: 27px 28px 28px;
}

.course-body h3 a {
  transition: color var(--transition);
}

.course-body h3 a:hover {
  color: #087da9;
}

.course-body > p:not(.course-category) {
  max-width: 56ch;
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 24px;
  list-style: none;
}

.tag-list li {
  padding: 5px 9px;
  border-radius: 6px;
  background: #edf4f8;
  color: #506479;
  font-size: 0.66rem;
  font-weight: 700;
}

.course-body .text-link {
  margin-top: auto;
}

/* Learning modes */
.learning-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--color-border-dark);
  border-bottom: 1px solid var(--color-border-dark);
}

.learning-options article {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  padding: 36px clamp(24px, 3vw, 42px) 38px;
  border-right: 1px solid var(--color-border-dark);
}

.learning-options article:first-child {
  padding-left: 0;
}

.learning-options article:last-child {
  padding-right: 0;
  border-right: 0;
}

.option-number {
  margin-bottom: 45px;
  color: var(--color-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.74rem;
}

.learning-options h3 {
  color: #f2f7fc;
}

.learning-options p {
  max-width: 33ch;
  color: var(--color-muted-inverse);
  font-size: 0.9rem;
}

.learning-options .text-link {
  margin-top: auto;
}

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 28px;
}

.project-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.project-media {
  display: block;
  overflow: hidden;
  height: 290px;
  background: #0a1728;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.project-card:hover .project-media img {
  transform: scale(1.018);
}

.project-card-cosmo .project-media img {
  object-fit: contain;
  object-position: center top;
}

.project-body {
  display: flex;
  min-height: 260px;
  flex: 1;
  flex-direction: column;
  padding: 28px;
}

.project-body p:not(.course-category) {
  max-width: 58ch;
  color: var(--color-muted);
}

.project-body .text-link {
  margin-top: auto;
}

/* Free content */
.channel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.channel-card {
  display: grid;
  grid-template-columns: 170px 1fr;
  align-items: center;
  gap: 28px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.channel-card:hover {
  border-color: #abd5e7;
  box-shadow: var(--shadow-sm);
}

.channel-card img {
  width: 170px;
  height: 130px;
  border-radius: 12px;
  object-fit: cover;
}

.channel-card h3 {
  margin-bottom: 8px;
  font-size: 1.22rem;
}

.channel-card p:not(.course-category) {
  margin-bottom: 13px;
  color: var(--color-muted);
  font-size: 0.84rem;
}

/* Final CTA */
.final-cta {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 50%, rgba(32, 183, 245, 0.16), transparent 30%),
    var(--color-bg-elevated);
  color: var(--color-text-inverse);
}

.final-cta-layout {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: end;
  gap: 64px;
}

.final-cta h2 {
  margin-bottom: 18px;
}

.final-cta p:last-child {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--color-muted-inverse);
  font-size: 1.05rem;
}

.final-actions {
  justify-content: flex-end;
}

/* Footer */
.site-footer {
  padding-top: 76px;
  background: #050d17;
  color: #8ea0b6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.15fr 0.7fr;
  gap: clamp(28px, 4vw, 58px);
  padding-bottom: 64px;
}

.brand-footer {
  margin-bottom: 24px;
  color: #f3f8fd;
}

.brand-footer .brand-logo {
  width: 64px;
}

.footer-brand p {
  max-width: 35ch;
  margin-bottom: 0;
  font-size: 0.82rem;
}

.site-footer h2 {
  margin-bottom: 18px;
  color: #ecf4fc;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer ul {
  margin: 0;
  list-style: none;
}

.site-footer li {
  margin-bottom: 9px;
  font-size: 0.78rem;
}

.site-footer a {
  transition: color var(--transition);
}

.site-footer a:hover {
  color: var(--color-primary);
}

.payment-bar {
  display: grid;
  grid-template-columns: minmax(230px, 320px) minmax(260px, 1fr) auto;
  align-items: center;
  gap: 30px;
  margin-bottom: 34px;
  padding: 20px;
  border: 1px solid rgba(169, 195, 220, 0.14);
  border-radius: var(--radius);
  background: rgba(16, 29, 48, 0.74);
}

.payment-visual {
  display: block;
  overflow: hidden;
  border-radius: 12px;
  background: #ffffff;
}

.payment-visual img {
  width: 100%;
  height: auto;
}

.payment-copy p {
  margin-bottom: 6px;
  color: var(--color-primary);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.payment-copy h2 {
  margin-bottom: 7px;
  color: #f3f8fd;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.payment-copy span {
  display: block;
  max-width: 55ch;
  color: #91a3b8;
  font-size: 0.78rem;
  line-height: 1.55;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 24px;
  border-top: 1px solid rgba(169, 195, 220, 0.11);
  font-size: 0.72rem;
}

.footer-bottom p {
  margin: 0;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 90;
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  gap: 9px;
  padding: 12px 17px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: var(--color-whatsapp);
  color: #052414;
  box-shadow: 0 16px 36px rgba(1, 26, 13, 0.25);
  font-size: 0.82rem;
  font-weight: 800;
  transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float:hover {
  box-shadow: 0 20px 42px rgba(1, 26, 13, 0.32);
  transform: translateY(-3px);
}

.whatsapp-float svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* Tablet */
@media (max-width: 1080px) {
  .site-nav {
    gap: 16px;
  }

  .site-nav > a:not(.button) {
    font-size: 0.72rem;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.65fr);
    gap: 50px;
  }

  .live-details {
    grid-template-columns: 1fr;
  }

  .course-facts {
    max-width: 650px;
  }

  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-media {
    height: 250px;
  }

  .channel-card {
    grid-template-columns: 130px 1fr;
    gap: 20px;
  }

  .channel-card img {
    width: 130px;
    height: 120px;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .payment-bar {
    grid-template-columns: 230px 1fr;
  }

  .payment-bar > .button {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 70px;
  }

  .menu-toggle {
    display: block;
  }

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

  .menu-toggle[aria-expanded="true"] > span:nth-child(3) {
    opacity: 0;
  }

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

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    align-content: start;
    gap: 0;
    max-height: 0;
    padding-inline: 24px;
    overflow: hidden;
    border-bottom: 1px solid rgba(183, 207, 231, 0.15);
    background: rgba(7, 17, 31, 0.985);
    opacity: 0;
    visibility: hidden;
    transition: max-height 280ms ease, opacity var(--transition), visibility var(--transition), padding var(--transition);
  }

  .site-nav.is-open {
    max-height: calc(100vh - var(--header-height));
    padding-block: 18px 26px;
    overflow-y: auto;
    opacity: 1;
    visibility: visible;
  }

  .site-nav > a:not(.button) {
    padding: 14px 4px;
    border-bottom: 1px solid rgba(183, 207, 231, 0.1);
    color: #e2ebf5;
    font-size: 0.92rem;
  }

  .site-nav .button {
    margin-top: 16px;
  }

  .hero {
    min-height: auto;
  }

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

  .hero-copy {
    max-width: 760px;
  }

  .learning-map {
    max-width: 650px;
  }

  .section-heading-row {
    display: block;
  }

  .section-heading-row .course-status {
    margin-top: 24px;
  }

  .learning-options {
    grid-template-columns: 1fr;
  }

  .learning-options article,
  .learning-options article:first-child,
  .learning-options article:last-child {
    min-height: auto;
    padding: 30px 0;
    border-right: 0;
    border-bottom: 1px solid var(--color-border-dark);
  }

  .learning-options article:last-child {
    border-bottom: 0;
  }

  .option-number {
    margin-bottom: 24px;
  }

  .learning-options .text-link {
    margin-top: 12px;
  }

  .channel-grid {
    grid-template-columns: 1fr;
  }

  .final-cta-layout {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 36px;
  }

  .final-actions {
    justify-content: flex-start;
  }
}

/* Mobile */
@media (max-width: 700px) {
  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  body {
    font-size: 15.5px;
  }

  h1 {
    font-size: clamp(2.25rem, 10.5vw, 3.35rem);
  }

  h2 {
    font-size: clamp(1.85rem, 8vw, 2.55rem);
  }

  .section-light,
  .section-white,
  .section-dark,
  .final-cta {
    padding-block: 72px;
  }

  .brand-copy strong {
    font-size: 0.78rem;
  }

  .brand-copy small {
    font-size: 0.49rem;
  }

  .hero {
    padding-block: 72px 82px;
  }

  .hero-grid {
    background-size: 48px 48px;
  }

  .hero-layout {
    gap: 52px;
  }

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

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

  .learning-map {
    padding: 20px;
    border-radius: 20px;
  }

  .learning-map-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .live-card {
    border-radius: var(--radius);
  }

  .live-media {
    aspect-ratio: 3 / 1;
  }

  .live-details {
    gap: 30px;
    padding: 26px 20px;
  }

  .course-facts {
    grid-template-columns: 1fr;
    gap: 17px;
  }

  .price-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .course-grid,
  .project-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .course-body {
    min-height: auto;
    padding: 24px 21px 26px;
  }

  .course-body .text-link {
    margin-top: 8px;
  }

  .project-media {
    height: auto;
    aspect-ratio: 3 / 1;
  }

  .project-card-cosmo .project-media {
    aspect-ratio: 1.4 / 1;
  }

  .project-body {
    min-height: auto;
    padding: 24px 21px 26px;
  }

  .project-body .text-link {
    margin-top: 8px;
  }

  .channel-card {
    grid-template-columns: 105px 1fr;
    gap: 16px;
    padding: 14px;
  }

  .channel-card img {
    width: 105px;
    height: 118px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 38px 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .payment-bar {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 16px;
  }

  .payment-visual {
    max-width: 360px;
  }

  .payment-bar > .button {
    grid-column: auto;
    width: 100%;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .whatsapp-float {
    width: 54px;
    height: 54px;
    min-height: 54px;
    justify-content: center;
    padding: 0;
  }

  .whatsapp-float span {
    display: none;
  }
}

@media (max-width: 430px) {
  .brand-logo {
    width: 42px;
  }

  .brand-copy small {
    display: none;
  }

  .course-status {
    font-size: 0.66rem;
  }

  .channel-card {
    grid-template-columns: 90px 1fr;
  }

  .channel-card img {
    width: 90px;
    height: 116px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}