:root {
  --erci-orange: #ff6600;
  --erci-orange-light: #ff8533;
  --erci-green: #00ff88;
}

/* Identidad visual del aula digital */
[data-md-color-scheme="slate"] {
  --md-default-bg-color: #080d18;
  --md-default-fg-color: #edf2f7;
  --md-primary-fg-color: #101827;
  --md-accent-fg-color: var(--erci-orange);
}

.md-header {
  backdrop-filter: blur(10px);
}

.erci-home {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.erci-hero {
  max-width: 850px;
  padding: 4.5rem 0 3.5rem;
}

.erci-kicker {
  display: flex;
  align-items: center;
  gap: .65rem;
  color: var(--erci-orange-light);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12rem;
}

.erci-kicker span {
  width: 2rem;
  height: 2px;
  background: var(--erci-orange);
}

.erci-hero h1 {
  margin: 1rem 0;
  font-size: clamp(2.7rem, 7vw, 4.8rem);
  line-height: .98;
  letter-spacing: -.16rem;
}

.erci-hero h1 em {
  color: var(--erci-orange);
  font-style: normal;
}

.erci-hero > p {
  max-width: 680px;
  font-size: 1.05rem;
  line-height: 1.75;
  opacity: .72;
}

.erci-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  margin-top: 2rem;
}

.erci-stats > div {
  display: flex;
  align-items: center;
  gap: .65rem;
}

.erci-stats strong {
  color: var(--erci-orange-light);
  font-size: 1.55rem;
}

.erci-stats span {
  opacity: .55;
  font-size: .72rem;
}

.erci-section-heading {
  display: flex;
  align-items: end;
  gap: 1.5rem;
  margin-bottom: 1.4rem;
}

.erci-section-heading span {
  opacity: .55;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .12rem;
}

.erci-section-heading h2 {
  margin: .35rem 0 0;
}

.erci-section-line {
  flex: 1;
  height: 1px;
  margin-bottom: .55rem;
  background: color-mix(in srgb, currentColor 12%, transparent);
}

.erci-modules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 3rem;
}

.erci-card {
  --accent: var(--erci-orange);
  --rx: 0deg;
  --ry: 0deg;
  --tx: 0px;
  --ty: 0px;
  --scale: 1;
  position: relative;
  display: flex;
  min-height: 285px;
  flex-direction: column;
  padding: 1.45rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, currentColor 12%, transparent);
  border-radius: 1rem;
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 13%, transparent), transparent 70%);
  transform: translate3d(var(--tx), var(--ty), 0) rotateX(var(--rx)) rotateY(var(--ry)) scale(var(--scale));
  transition: transform .2s ease, border-color .25s ease, box-shadow .25s ease;
}

.erci-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}

.erci-card:hover {
  border-color: color-mix(in srgb, var(--accent) 70%, white);
  box-shadow: 0 1.2rem 2.6rem rgba(0,0,0,.2);
}

.erci-card.local {
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--erci-green) 20%, transparent);
}

.erci-card-top,
.erci-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.erci-card .code {
  color: var(--accent);
  font-weight: 900;
  letter-spacing: .08rem;
}

.erci-card .badge {
  padding: .3rem .5rem;
  border-radius: 999px;
  font-size: .65rem;
  background: color-mix(in srgb, currentColor 8%, transparent);
}

.erci-icon {
  margin: 1.6rem 0 .65rem;
  color: var(--accent);
  font-family: monospace;
  font-size: 1.7rem;
  font-weight: 700;
}

.erci-card h3 {
  margin: 0 0 .6rem;
  font-size: 1.2rem;
}

.erci-card p {
  flex: 1;
  opacity: .68;
  font-size: .82rem;
  line-height: 1.65;
}

.status {
  display: flex;
  align-items: center;
  gap: .4rem;
  opacity: .68;
  font-size: .68rem;
}

.status::before {
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: #7b8798;
  content: "";
}

.status.available {
  color: #8ee5b5;
  opacity: 1;
}

.status.available::before {
  background: var(--erci-green);
  box-shadow: 0 0 .65rem var(--erci-green);
}

.erci-button {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .5rem .7rem;
  border-radius: .5rem;
  color: #101722 !important;
  font-size: .72rem;
  font-weight: 800;
  text-decoration: none;
  background: var(--accent);
  transition: gap .2s ease, filter .2s ease;
}

.erci-button:hover {
  gap: .85rem;
  filter: brightness(1.12);
}

.module-intro {
  padding: 1rem 1.2rem;
  margin: 1rem 0 1.5rem;
  border-left: 4px solid var(--erci-orange);
  border-radius: .5rem;
  background: color-mix(in srgb, var(--erci-orange) 8%, transparent);
}

@media (max-width: 760px) {
  .erci-hero { padding-top: 2.6rem; }
  .erci-modules { grid-template-columns: 1fr; }
  .erci-section-heading { display: block; }
  .erci-section-line { margin-top: .8rem; }
  .erci-card-bottom { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .erci-card { transform: none !important; transition: none; }
}

/* =========================================================
   SISTEMAS INFORMÁTICOS · portada por tarjetas
   ========================================================= */
.si-home {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.si-hero {
  max-width: 760px;
  padding: 3.6rem 0 3.8rem;
}

.si-kicker {
  display: flex;
  align-items: center;
  gap: .65rem;
  color: #ff8a1d;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .14rem;
}

.si-kicker span {
  width: 2rem;
  height: 2px;
  background: #ff7a00;
}

.si-hero h1 {
  margin: 1rem 0 1.15rem;
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: .92;
  letter-spacing: -.18rem;
}

.si-hero h1 em {
  color: #ff7a00;
  font-style: normal;
}

.si-hero > p {
  max-width: 700px;
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  opacity: .74;
}

.si-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  margin-top: 2.1rem;
}

.si-stats > div {
  display: flex;
  align-items: baseline;
  gap: .55rem;
}

.si-stats strong {
  color: #ff8a1d;
  font-size: 1.45rem;
  font-weight: 900;
}

.si-stats span {
  font-size: .67rem;
  opacity: .55;
}

.si-section-heading {
  display: flex;
  align-items: end;
  gap: 1.4rem;
  margin-bottom: 1.25rem;
}

.si-section-heading > div:first-child > span {
  font-size: .67rem;
  font-weight: 900;
  letter-spacing: .12rem;
  opacity: .58;
}

.si-section-heading h2 {
  margin: .35rem 0 0;
  font-size: 1.55rem;
}

.si-section-line {
  flex: 1;
  height: 1px;
  margin-bottom: .48rem;
  background: color-mix(in srgb, currentColor 13%, transparent);
}

.si-units {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 3rem;
}

.si-card {
  --accent: #ff7a00;
  position: relative;
  display: flex;
  min-height: 245px;
  flex-direction: column;
  padding: 1.35rem 1.4rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, currentColor 12%, transparent);
  border-radius: 1rem;
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 5%, transparent), color-mix(in srgb, currentColor 2%, transparent));
  transition: transform .2s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
}

.si-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 42%, currentColor 20%);
  box-shadow: 0 1rem 2.2rem rgba(0,0,0,.18);
}

.si-card-featured {
  grid-column: 1 / -1;
  min-height: 300px;
  border-color: color-mix(in srgb, var(--accent) 72%, transparent);
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 14%, transparent), color-mix(in srgb, currentColor 3%, transparent) 58%);
}

.si-card-top,
.si-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
}

.si-code {
  color: var(--accent);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .09rem;
}

.si-state {
  padding: .28rem .55rem;
  border-radius: 999px;
  background: color-mix(in srgb, currentColor 7%, transparent);
  font-size: .61rem;
  opacity: .58;
}

.si-state.available {
  color: #8ff0ba;
  background: rgba(0, 255, 136, .09);
  opacity: 1;
}

.si-unit-icon {
  margin: 1.55rem 0 .7rem;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.35rem;
  font-weight: 900;
}

.si-card h3 {
  margin: 0 0 .55rem;
  font-size: 1.12rem;
  font-weight: 500;
}

.si-card > p {
  flex: 1;
  margin: 0 0 1.2rem;
  font-size: .77rem;
  line-height: 1.6;
  opacity: .6;
}

.si-ra {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.si-ra span {
  padding: .25rem .42rem;
  border: 1px solid color-mix(in srgb, currentColor 15%, transparent);
  border-radius: .35rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .59rem;
  opacity: .72;
}

.si-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.si-button {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .52rem .78rem;
  border-radius: .5rem;
  color: #111827 !important;
  background: var(--accent);
  font-size: .68rem;
  font-weight: 900;
  text-decoration: none;
  transition: gap .2s ease, filter .2s ease;
}

.si-button:hover {
  gap: .75rem;
  filter: brightness(1.12);
}

.si-text-link {
  color: var(--accent) !important;
  font-size: .64rem;
  font-weight: 700;
  text-decoration: none;
}

.si-text-link:hover {
  text-decoration: underline;
}

.si-soon {
  font-size: .61rem;
  opacity: .38;
}

@media (max-width: 760px) {
  .si-hero { padding-top: 2.5rem; }
  .si-units { grid-template-columns: 1fr; }
  .si-card-featured { grid-column: auto; }
  .si-section-heading { display: block; }
  .si-section-line { margin-top: .8rem; }
  .si-card-bottom { align-items: flex-start; flex-direction: column; }
  .si-actions { align-items: flex-start; flex-direction: column; }
}


/* Portadas de módulos: reglas de maquetación explícitas */
.md-content__inner:has(.erci-home),
.md-content__inner:has(.si-home) {
  max-width: none;
}

.erci-home *, .si-home * {
  box-sizing: border-box;
}

.si-home .si-units {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 1rem !important;
}

.si-home .si-card {
  display: flex !important;
  flex-direction: column !important;
  border-style: solid !important;
}

.si-home .si-card-featured {
  grid-column: 1 / -1 !important;
}

.erci-home .erci-modules {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.status.preparing::before {
  background: #7b8798;
}

@media (max-width: 760px) {
  .si-home .si-units,
  .erci-home .erci-modules {
    grid-template-columns: 1fr !important;
  }
  .si-home .si-card-featured {
    grid-column: auto !important;
  }
}


/* Recursos incrustados */
.resource-embed {
  width: 100%;
  margin: 1.2rem 0 2rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, currentColor 12%, transparent);
  border-radius: .8rem;
  background: color-mix(in srgb, currentColor 2%, transparent);
}

.resource-embed iframe {
  display: block;
  width: 100%;
  min-height: 600px;
}

@media (max-width: 760px) {
  .resource-embed iframe {
    min-height: 460px;
    height: 70vh;
  }
}