.course-detail-page {
  background: #fff;
}

.detail-shell {
  padding-block: clamp(2rem, 4vw, 3.5rem) clamp(5rem, 9vw, 8rem);
}

.detail-breadcrumb {
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--sqm-line);
  font-size: 0.9rem;
}

.detail-breadcrumb a {
  color: #8a93a3;
  text-decoration: none;
}

.detail-breadcrumb .active {
  color: var(--sqm-blue);
  font-weight: 750;
}

.detail-layout {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 1.55fr) minmax(21rem, 0.92fr);
  gap: clamp(2rem, 4vw, 3.75rem);
}

.course-main {
  min-width: 0;
}

.course-heading {
  margin-bottom: 2rem;
}

.course-heading h1 {
  max-width: 51rem;
  margin: 0;
  color: var(--sqm-blue);
  font-size: clamp(2.35rem, 5vw, 4.4rem);
  font-weight: 550;
  line-height: 1.02;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.course-facts {
  display: flex;
  flex-wrap: wrap;
  margin: 2rem 0 0;
  padding: 0;
  gap: 0.75rem;
  list-style: none;
}

.course-facts li {
  display: inline-flex;
  min-height: 2.45rem;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.9rem;
  color: var(--sqm-green-700);
  background: #fff;
  border: 1px solid var(--sqm-green);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 680;
}

.fact-icon {
  display: grid;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 850;
}

.course-visual {
  position: relative;
  display: grid;
  min-height: clamp(21rem, 40vw, 32rem);
  place-items: center;
  overflow: hidden;
  color: #fff;
  background: var(--sqm-green);
  border-radius: 1.2rem;
  isolation: isolate;
}

.course-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-visual-content > span {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.course-visual-content strong {
  display: grid;
  width: 8rem;
  height: 8rem;
  margin: 1rem 0;
  place-items: center;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  font-size: 4.5rem;
  font-weight: 550;
  line-height: 1;
}

.course-visual-content small {
  font-weight: 650;
  letter-spacing: 0.04em;
}

.detail-section {
  padding-top: clamp(2.75rem, 6vw, 4.25rem);
}

.detail-section h2 {
  margin: 0 0 1rem;
  color: var(--sqm-blue);
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 520;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.detail-section > p {
  max-width: 54rem;
  margin: 0;
  color: #495466;
  font-size: 1.04rem;
  line-height: 1.75;
}

.detail-eyebrow {
  display: inline-block;
  margin-bottom: 0.25rem;
  color: var(--sqm-green-700);
  font-size: 0.76rem;
  font-weight: 820;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}


.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

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

.section-summary {
  flex: 0 0 auto;
  color: var(--sqm-muted);
  font-size: 0.86rem;
}

.syllabus-accordion {
  overflow: hidden;
  border: 1px solid #cdd6e3;
  border-radius: 1rem;
  --bs-accordion-border-color: #dbe1ea;
}

.syllabus-accordion .accordion-item:last-child {
  border-bottom: 0;
}

.syllabus-accordion .accordion-button {
  min-height: 5.25rem;
  padding: 1rem 1.25rem;
  gap: 1rem;
  background: #fff;
}

.syllabus-accordion .accordion-button:not(.collapsed) {
  color: var(--sqm-blue);
  background: #f5f8fc;
}

.module-index {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 2.5rem;
  place-items: center;
  color: #fff;
  background: var(--sqm-blue);
  border-radius: 50%;
  font-size: 0.72rem;
  font-weight: 850;
}

.module-title {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding-right: 0.5rem;
}

.module-title strong {
  color: var(--sqm-blue-900);
  font-size: 1rem;
}

.module-title small {
  margin-top: 0.18rem;
  color: var(--sqm-muted);
  font-size: 0.8rem;
  font-weight: 500;
}

.syllabus-accordion .accordion-body {
  padding: 0.25rem 1.25rem 1.25rem 4.75rem;
  color: #4b5668;
}

.syllabus-accordion .accordion-body > p {
  margin: 0;
}

.lesson-list {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 0;
  list-style: none;
}

.lesson-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--sqm-line);
}

.lesson-list li:last-child {
  border-bottom: 0;
}

.lesson-list time {
  flex: 0 0 auto;
  color: var(--sqm-muted);
  font-size: 0.82rem;
}

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

.material-card {
  display: grid;
  min-width: 0;
  align-items: start;
  padding: 1.25rem;
  background: #fff;
  border: 1px solid #d6deea;
  border-radius: 1rem;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

.material-icon {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  color: #fff;
  background: var(--sqm-blue);
  border-radius: 0.7rem;
  font-size: 0.7rem;
  font-weight: 850;
}

.material-card h3 {
  margin: 0;
  color: var(--sqm-blue);
  font-size: 1rem;
  font-weight: 800;
}

.material-card p {
  margin: 0.35rem 0 0;
  color: var(--sqm-muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.material-action {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.5rem;
  margin-top: 0.85rem;
  padding: 0;
  color: var(--sqm-blue);
  background: transparent;
  border: 0;
  grid-column: 2;
  justify-self: start;
  font-size: 0.86rem;
  font-weight: 780;
  text-decoration: none;
}

.material-action:hover {
  color: var(--sqm-green-700);
  text-decoration: underline;
}

.registration-column {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

.registration-card {
  padding: clamp(1.5rem, 3vw, 2.4rem);
  background: #fff;
  border: 1px solid #e4edfb;
  border-radius: 1.25rem;
  box-shadow: 0 12px 34px rgba(11, 42, 90, 0.1);
}

.registration-intro {
  margin-bottom: 1.75rem;
  text-align: center;
}

.registration-intro h2 {
  margin: 0.35rem 0 0.55rem;
  color: var(--sqm-blue);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  font-weight: 630;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.registration-intro p {
  margin: 0;
  color: #4e5869;
  font-size: 0.75rem;
}

.registration-form {
  display: grid;
  gap: 1rem;
}

.registration-form .form-label {
  margin-bottom: 0;
  color: var(--sqm-blue);
  font-size: 0.86rem;
  font-weight: 780;
}

.registration-form .form-control {
  min-height: 2.15rem;
  border-color: #bdc7d6;
  border-radius: 0.65rem;
}

.registration-form .form-control:focus {
  border-color: var(--sqm-blue);
  box-shadow: 0 0 0 0.22rem rgba(0, 61, 165, 0.12);
}

.registration-options {
  display: grid;
  padding-block: 0.3rem;
  gap: 0.85rem;
}

.registration-options .form-check {
  display: grid;
  align-items: start;
  margin: 0;
  padding: 0;
  grid-template-columns: 1.3rem 1fr;
  gap: 0.65rem;
}

.registration-options .form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0.12rem 0 0;
}

.registration-options .form-check-label {
  color: var(--sqm-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.registration-options a {
  color: var(--sqm-blue);
}

.registration-options .invalid-feedback {
  grid-column: 2;
}

.registration-submit {
  min-height: 3.4rem;
  margin-top: 0.35rem;
}

.registration-note,
.registration-status {
  margin: 0;
  color: var(--sqm-blue);
  font-size: 0.78rem;
  line-height: 1.45;
  text-align: center;
}

.registration-status:not(:empty) {
  padding: 0.65rem;
  color: #2d6600;
  background: #f0f8e8;
  border-radius: 0.55rem;
  font-weight: 700;
}

.mobile-course-bar {
  display: none;
}

.detail-toast-container {
  z-index: 1095;
}

@media (max-width: 1199.98px) {
  .detail-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(19.5rem, 0.8fr);
    gap: 2rem;
  }

  .registration-card {
    padding: 1.45rem;
  }
}

@media (max-width: 991.98px) {
  .course-detail-page {
    padding-bottom: 4.7rem;
  }

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

  .registration-card {
    max-width: 42rem;
    margin-inline: auto;
  }

  .registration-column {
    position: static;
  }

  .mobile-course-bar {
    position: fixed;
    z-index: 1080;
    right: 0;
    bottom: 0;
    left: 0;
    display: block;
    padding: 0.7rem max(0.8rem, env(safe-area-inset-right)) max(0.7rem, env(safe-area-inset-bottom)) max(0.8rem, env(safe-area-inset-left));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--sqm-line);
    box-shadow: 0 -8px 24px rgba(10, 32, 70, 0.1);
    backdrop-filter: blur(12px);
  }

  .mobile-course-bar .btn {
    width: 100%;
    min-height: 3.35rem;
  }

  .detail-toast-container {
    bottom: 4.8rem !important;
  }

}
@media (min-width: 768px) and (max-width: 991.98px) {
  .registration-column {
    position: static;
    top: auto;
  }
}
/* El botón móvil permanece oculto por defecto */

.mobile-course-bar {
  display: none;
}

/* El wrapper de Bootstrap no altera el aside de escritorio */

.registration-column .offcanvas-body {
  padding: 0;
  overflow: visible;
}
@media (max-width: 767.98px) {
  .detail-shell {
    padding-top: 1.4rem;
  }

  .detail-breadcrumb {
    margin-bottom: 1.75rem;
    font-size: 0.78rem;
  }

  .course-heading h1 {
    font-size: clamp(2.15rem, 10vw, 3.2rem);
  }

  .course-facts {
    display: flex;
  }

  .course-facts li {
    justify-content: center;
  }

  .course-visual {
    min-height: 19rem;
  }

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

  .section-heading-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .syllabus-accordion .accordion-body {
    padding-left: 1.25rem;
  }

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

   .course-detail-page {
    padding-bottom: calc(4rem + env(safe-area-inset-bottom));
  }

  /* ========================================
     FORMULARIO OFFCANVAS
     ======================================== */

  .registration-column.offcanvas-md {
    --bs-offcanvas-height: min(90dvh, 54rem);

    position: fixed;
    top: auto;
    right: max(0.75rem, env(safe-area-inset-right));
    bottom: 0;
    left: max(0.75rem, env(safe-area-inset-left));

    width: auto;
    height: var(--bs-offcanvas-height);
    max-height: calc(100dvh - 1rem);

    color: #fff;
    background: var(--sqm-green);
    border: 0;
    border-radius: 1.5rem 1.5rem 0 0;
    box-shadow: 0 -1rem 3rem rgba(3, 20, 45, 0.24);
    overflow: hidden;
  }

  .registration-column .offcanvas-body {
    padding: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .registration-column .registration-card {
    position: relative;

    width: 100%;
    max-width: none;
    min-height: 100%;
    margin: 0;
    padding: 2.5rem 1.5rem 1.5rem;

    color: #fff;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  /* Botón para cerrar */

  .registration-dismiss {
    position: absolute;
    z-index: 2;
    top: 1rem;
    right: 1rem;

    display: grid;
    width: 2.35rem;
    height: 2.35rem;
    padding: 0;
    place-items: center;

    color: #fff;
    background: transparent;
    border: 2px solid #fff;
    border-radius: 50%;
    font-size: 1rem;
  }

  .registration-dismiss:hover,
  .registration-dismiss:focus-visible {
    color: var(--sqm-green);
    background: #fff;
  }

  /* Textos del formulario sobre fondo verde */

  .registration-column .detail-eyebrow,
  .registration-column .registration-intro h2,
  .registration-column .registration-form .form-label,
  .registration-column .form-check-label {
    color: #fff;
  }

  .registration-column .registration-intro p,
  .registration-column .registration-note,
  .registration-column .registration-status {
    color: rgba(255, 255, 255, 0.82);
  }

  .registration-column .registration-options a {
    color: #fff;
    text-decoration: underline;
  }

  .registration-column .invalid-feedback {
    color: #fff;
    font-weight: 650;
  }

  /* Botón que sí envía el formulario */

  .registration-column .registration-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;

    margin-top: 0.5rem;
    padding-top: 1.25rem;

    color: #fff;
    background: transparent;
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 0;
  }

  .registration-column .registration-submit:hover,
  .registration-column .registration-submit:focus-visible {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
  }

  /* ========================================
     BOTÓN FIJO INFERIOR
     ======================================== */

  .mobile-course-bar {
    position: fixed;
    z-index: 1035;
    right: 0;
    bottom: 0;
    left: 0;

    display: block;
    padding-bottom: env(safe-area-inset-bottom);

    background: var(--sqm-green);
    border-radius: 1.25rem 1.25rem 0 0;
    box-shadow: 0 -0.75rem 2rem rgba(3, 20, 45, 0.16);
    overflow: hidden;
  }

  .mobile-course-bar .btn {
    display: flex;
    width: 100%;
    min-height: 4.6rem;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;

    color: #fff;
    background: var(--sqm-green);
    border: 0;
    border-radius: 0;
    font-size: 1.15rem;
  }

  .mobile-course-bar .btn:hover,
  .mobile-course-bar .btn:focus-visible {
    color: #fff;
    background: var(--sqm-green-700);
  }

  .detail-toast-container {
    bottom: 5.2rem !important;
  }

}

@media (max-width: 575.98px) {

  .course-visual-content strong {
    width: 6.25rem;
    height: 6.25rem;
    font-size: 3.5rem;
  }

  .syllabus-accordion .accordion-button {
    align-items: flex-start;
    padding-inline: 1rem;
  }

  .module-index {
    width: 2.2rem;
    height: 2.2rem;
    flex-basis: 2.2rem;
  }

  .registration-card {
    padding: 1.2rem;
  }
}