/* ==========================================================================
   LU — Directora Creativa & Estratega de Marca
   Estética náutica / mediterránea de lujo relajado
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --color-white: #FDFEFF;
  --color-navy: #0B2545;
  --color-ocean: #1B4E8A;
  --color-ocean-light: #3E7CB1;
  --color-sky: #DCEEFB;
  --color-sky-soft: #EFF7FD;
  --color-slate: #5C7285;
  --color-pastel-yellow: #F7D774;
  --color-pastel-yellow-soft: #FBEAB4;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --container-width: 1200px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;

  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-lg: 32px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 0.5s var(--ease);

  --shadow-soft: 0 20px 60px -20px rgba(11, 37, 69, 0.18);
  --shadow-card: 0 12px 40px -12px rgba(11, 37, 69, 0.12);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  color: var(--color-navy);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; color: var(--color-navy); }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--color-ocean);
  outline-offset: 3px;
}

/* ---------- Reusable elements ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ocean);
  margin-bottom: 0.9rem;
  position: relative;
  padding-left: 1.6rem;
}
.eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1.1rem;
  height: 3px;
  border-radius: 2px;
  background: var(--color-pastel-yellow);
}
.eyebrow--light { color: var(--color-sky); }
.eyebrow--light::before { background: var(--color-pastel-yellow); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-block { width: 100%; }
.btn-lg { padding: 1.15rem 2.6rem; font-size: 1.02rem; }

.btn-primary {
  background: var(--color-navy);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover {
  background: var(--color-ocean);
  transform: translateY(-3px);
  box-shadow: 0 24px 50px -16px rgba(27, 78, 138, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--color-navy);
  border: 1.5px solid rgba(11, 37, 69, 0.18);
}
.btn-ghost:hover {
  border-color: var(--color-navy);
  transform: translateY(-3px);
}
.btn-ghost--light {
  color: var(--color-white);
  border-color: rgba(253, 254, 255, 0.3);
}
.btn-ghost--light:hover {
  border-color: var(--color-pastel-yellow);
  color: var(--color-pastel-yellow);
}

.btn-outline {
  background: transparent;
  color: var(--color-ocean);
  border: 1.5px solid var(--color-ocean);
}
.btn-outline:hover {
  background: var(--color-ocean);
  color: var(--color-white);
  transform: translateY(-3px);
}

.btn-whatsapp {
  background: var(--color-pastel-yellow);
  color: var(--color-navy);
  box-shadow: 0 20px 45px -18px rgba(247, 215, 116, 0.55);
}
.btn-whatsapp:hover {
  background: var(--color-pastel-yellow-soft);
  transform: translateY(-3px);
}

.btn .icon { width: 1.15rem; height: 1.15rem; fill: currentColor; flex-shrink: 0; }

.link-underline {
  display: inline-block;
  font-weight: 600;
  color: var(--color-ocean);
  position: relative;
  padding-bottom: 2px;
  background-image: linear-gradient(var(--color-pastel-yellow), var(--color-pastel-yellow));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size var(--transition);
}
.link-underline:hover { background-size: 100% 2px; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ocean);
  background: var(--color-sky);
  padding: 0.4rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}
.badge--dark {
  background: var(--color-navy);
  color: var(--color-pastel-yellow);
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 500;
  background: rgba(253, 254, 255, 0.75);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(11, 37, 69, 0.06);
  transition: box-shadow var(--transition), background var(--transition);
}
.site-header.is-scrolled {
  box-shadow: 0 10px 30px -18px rgba(11, 37, 69, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-mark {
  height: 2.6rem;
  width: auto;
  object-fit: contain;
  object-position: left center;
}
.logo-sub {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-top: 0.15rem;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}
.primary-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-navy);
  position: relative;
  padding-bottom: 4px;
}
.primary-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-pastel-yellow);
  transition: width var(--transition);
}
.primary-nav a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
  background: var(--color-navy);
  color: var(--color-white) !important;
  padding: 0.6rem 1.4rem;
  border-radius: 100px;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--color-ocean); transform: translateY(-2px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  z-index: 501;
}
.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
  margin-inline: auto;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(11, 37, 69, 0.35);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 400;
}
.nav-scrim.is-visible { opacity: 1; pointer-events: auto; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  padding-top: clamp(8rem, 14vw, 11rem);
  padding-bottom: 6rem;
  min-height: clamp(640px, 100vh, 900px);
  display: flex;
  align-items: center;
  background: var(--color-navy);
  overflow: hidden;
  isolation: isolate;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -3;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(180deg, rgba(11, 37, 69, 0.78) 0%, rgba(11, 37, 69, 0.42) 45%, rgba(11, 37, 69, 0.82) 100%);
}

.hero-glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 700px;
  max-height: 700px;
  background: radial-gradient(circle, rgba(247, 215, 116, 0.16) 0%, rgba(247, 215, 116, 0) 70%);
  pointer-events: none;
  z-index: -1;
}

.hero-inner {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  max-width: 16ch;
  color: var(--color-white);
  text-shadow: 0 4px 30px rgba(11, 37, 69, 0.3);
}
.hero-title .amp {
  color: var(--color-pastel-yellow);
  font-style: italic;
  font-weight: 400;
}

.hero-manifesto {
  margin-top: 1.75rem;
  max-width: 42ch;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--color-sky);
  font-weight: 400;
}

.hero .eyebrow { color: var(--color-pastel-yellow); }
.hero .eyebrow::before { background: var(--color-pastel-yellow); }

.hero-proof {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: 1.75rem clamp(1.5rem, 5vw, 3rem);
  background: rgba(253, 254, 255, 0.14);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(253, 254, 255, 0.25);
}

.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.proof-number {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 600;
  color: var(--color-pastel-yellow);
  line-height: 1;
}
.proof-label {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-white);
  font-weight: 500;
  line-height: 1.4;
}
.proof-divider {
  width: 1px;
  height: 3.2rem;
  background: linear-gradient(180deg, transparent, rgba(253, 254, 255, 0.35), transparent);
}

.hero-cta {
  margin-top: 2.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.hero-cta .btn-ghost {
  color: var(--color-white);
  border-color: rgba(253, 254, 255, 0.4);
}
.hero-cta .btn-ghost:hover {
  border-color: var(--color-pastel-yellow);
  color: var(--color-pastel-yellow);
}

.hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  line-height: 0;
}
.hero-wave svg { width: 100%; height: 70px; display: block; }
.hero-wave path { fill: var(--color-white); }

/* ==========================================================================
   BANNER VISUAL
   ========================================================================== */
.visual-banner {
  position: relative;
  width: 100%;
  height: clamp(320px, 55vw, 560px);
  overflow: hidden;
}
.visual-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  transform: scale(1.02);
}
.visual-banner--sm {
  height: clamp(220px, 32vw, 360px);
}
.visual-banner--sm img { object-position: center 65%; }
.visual-banner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  background: linear-gradient(0deg, rgba(11, 37, 69, 0.55) 0%, rgba(11, 37, 69, 0) 45%);
}
.visual-banner-text {
  color: var(--color-white);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.1rem, 2.6vw, 1.6rem);
  text-align: center;
  max-width: 30ch;
  text-shadow: 0 2px 20px rgba(11, 37, 69, 0.35);
}

/* ==========================================================================
   SOBRE MI
   ========================================================================== */
.about { padding-block: var(--space-xl); }

.about-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.about-media {
  position: relative;
}

.about-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--color-ocean) 0%, var(--color-navy) 100%);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1.75rem;
  box-shadow: var(--shadow-soft);
}
.about-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform 0.8s var(--ease);
}
.about-frame:hover img { transform: scale(1.06); }
.about-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(0deg, rgba(11, 37, 69, 0.55) 0%, rgba(11, 37, 69, 0) 55%);
}
.about-frame-badge {
  position: relative;
  z-index: 2;
  background: rgba(253, 254, 255, 0.92);
  color: var(--color-navy);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.65rem 1.2rem;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

.about-text h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); margin-bottom: 1.25rem; }
.about-text p { color: var(--color-slate); margin-bottom: 1.1rem; max-width: 52ch; }
.about-text strong { color: var(--color-navy); }

/* ==========================================================================
   SECTION HEAD (shared)
   ========================================================================== */
.section-head {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); }
.section-sub { margin-top: 1.1rem; color: var(--color-slate); font-size: 1.05rem; }
.section-sub strong { color: var(--color-ocean); }

/* ==========================================================================
   CURSOS
   ========================================================================== */
.courses {
  padding-block: var(--space-xl);
  background: var(--color-sky-soft);
  position: relative;
}

.courses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.course-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.4rem 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid rgba(11, 37, 69, 0.05);
}
.course-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px -22px rgba(11, 37, 69, 0.22);
}

.course-card--featured {
  background: linear-gradient(165deg, var(--color-navy) 0%, #123157 100%);
  color: var(--color-white);
}
.course-card--featured h3,
.course-card--featured p { color: var(--color-white); }
.course-card--featured .course-features li { color: rgba(253, 254, 255, 0.85); }
.course-card--featured .course-features li::before { background: var(--color-pastel-yellow); }

.course-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}
.course-card > p {
  color: var(--color-slate);
  margin-bottom: 1.5rem;
  flex-grow: 0;
}

.course-features {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.course-features li {
  font-size: 0.9rem;
  color: var(--color-navy);
  font-weight: 500;
  padding-left: 1.6rem;
  position: relative;
}
.course-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-ocean);
}

.course-card .btn { margin-top: auto; }

/* ==========================================================================
   SERVICIOS
   ========================================================================== */
.service { padding-block: var(--space-xl); }
.service--identity { background: var(--color-sky-soft); }

.service-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.service-text .eyebrow { color: var(--color-ocean); }
.service-text h2 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 1.25rem; }
.service-desc {
  color: var(--color-slate);
  font-size: 1.05rem;
  max-width: 56ch;
  margin-bottom: 1.75rem;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}
.check-list li {
  position: relative;
  padding-left: 2.1rem;
  font-weight: 500;
  color: var(--color-navy);
  font-size: 0.98rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--color-sky);
  border: 1px solid rgba(27, 78, 138, 0.18);
}
.check-list li::after {
  content: "";
  position: absolute;
  left: 0.42rem;
  top: 0.52rem;
  width: 0.5rem;
  height: 0.28rem;
  border-left: 2px solid var(--color-ocean);
  border-bottom: 2px solid var(--color-ocean);
  transform: rotate(-45deg);
}

.visual-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.visual-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}
.visual-card:hover img { transform: scale(1.06); }
.visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(0deg, rgba(11, 37, 69, 0.6) 0%, rgba(11, 37, 69, 0) 40%);
}
.visual-tag {
  position: absolute;
  left: 1.75rem;
  bottom: 1.5rem;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

/* ==========================================================================
   CTA FINAL
   ========================================================================== */
.final-cta {
  position: relative;
  padding-block: var(--space-xl);
  overflow: hidden;
  isolation: isolate;
}
.final-cta-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.final-cta-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(160deg, rgba(11, 37, 69, 0.88) 0%, rgba(27, 78, 138, 0.8) 100%);
}
.final-cta-inner {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}
.final-cta-inner h2 { color: var(--color-white); font-size: clamp(1.9rem, 4vw, 2.6rem); margin-bottom: 1rem; }
.final-cta-inner p { color: var(--color-sky); margin-bottom: 2.25rem; font-size: 1.05rem; }
.final-cta .btn-primary { background: var(--color-pastel-yellow); color: var(--color-navy); }
.final-cta .btn-primary:hover { background: var(--color-pastel-yellow-soft); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  position: relative;
  background: var(--color-navy);
  color: var(--color-sky);
  padding-top: 4rem;
}
.footer-wave { line-height: 0; margin-top: -1px; }
.footer-wave svg { width: 100%; height: 60px; display: block; }
.footer-wave path { fill: var(--color-navy); }

.footer-inner { padding-block: var(--space-lg) 3rem; }

.footer-main { text-align: center; max-width: 620px; margin-inline: auto; }
.footer-main h2 { color: var(--color-white); font-size: clamp(1.8rem, 3.5vw, 2.4rem); margin-bottom: 1rem; }
.footer-sub { color: rgba(220, 238, 251, 0.75); margin-bottom: 2.5rem; font-size: 1.02rem; }

.footer-contact-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.footer-bottom {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(220, 238, 251, 0.14);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}
.footer-social a {
  color: var(--color-sky);
  transition: color var(--transition);
}
.footer-social a:hover { color: var(--color-pastel-yellow); }
.footer-social .dot { color: rgba(220, 238, 251, 0.4); }

.footer-rights {
  font-size: 0.85rem;
  color: rgba(220, 238, 251, 0.55);
}

/* ---------- Scroll to top ---------- */
.scroll-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  z-index: 300;
}
.scroll-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.scroll-top:hover { background: var(--color-ocean); }
.scroll-top svg { width: 1.15rem; height: 1.15rem; fill: currentColor; }

/* ==========================================================================
   RESPONSIVE — Tablet & up
   ========================================================================== */
@media (min-width: 640px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .course-card--featured { grid-column: span 2; }
}

@media (min-width: 860px) {
  .about-inner { grid-template-columns: 0.9fr 1.1fr; }
  .service-inner { grid-template-columns: 1fr 1fr; }
  .service-inner--reverse .service-text { order: 2; }
  .service-inner--reverse .service-visual { order: 1; }
  .footer-contact-buttons { flex-wrap: nowrap; }
}

@media (min-width: 1000px) {
  .courses-grid { grid-template-columns: repeat(3, 1fr); }
  .course-card--featured { grid-column: span 1; transform: translateY(-14px); }
  .course-card--featured:hover { transform: translateY(-22px); }
}

/* ---------- Mobile nav ---------- */
@media (max-width: 899px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100dvh;
    width: min(78vw, 340px);
    background: var(--color-white);
    box-shadow: -20px 0 60px -20px rgba(11, 37, 69, 0.3);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 490;
    padding: 6.5rem 2rem 2rem;
    overflow-y: auto;
  }
  .primary-nav.is-open { transform: translateX(0); }

  .primary-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.75rem;
  }
  .primary-nav a { font-size: 1.15rem; }
  .nav-cta { margin-top: 0.5rem; }
}

@media (min-width: 900px) {
  .nav-scrim { display: none; }
}