/* ===========================================================
   ENESE Academy — Layout
   Login screen + SPA shell (sidebar + main)
   Mobile-first con breakpoint en 1024px
   =========================================================== */

/* ============= LOGIN ============= */
.login-screen {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5);
  background:
    radial-gradient(circle at 20% 0%, rgba(216, 243, 63, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(19, 22, 91, 0.04) 0%, transparent 50%),
    var(--surface);
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface-elevated);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  padding: var(--sp-8) var(--sp-7);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-7);
}

.login-brand-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-weight: var(--fw-bold);
  font-size: var(--fs-xl);
  letter-spacing: -0.02em;
}

.login-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.login-brand-text strong {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text);
}
.login-brand-text span {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.login-title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-1);
}
.login-subtitle {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--sp-6);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.login-footer {
  margin-top: var(--sp-6);
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--text-subtle);
}

/* ============= APP SHELL ============= */
.app-shell {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--surface);
}

/* -------- Sidebar -------- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--white);
  border-right: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: var(--z-nav);
  transition: transform var(--t-slow);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-5);
  border-bottom: 1px solid var(--border-soft);
  min-height: var(--header-h);
}

.sidebar-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.sidebar-brand-text {
  font-weight: var(--fw-semibold);
  font-size: var(--fs-md);
  color: var(--text);
  line-height: 1.2;
}
.sidebar-brand-text small {
  display: block;
  font-weight: var(--fw-regular);
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.sidebar-nav {
  flex: 1;
  padding: var(--sp-4) var(--sp-3);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.sidebar-group {
  margin-top: var(--sp-4);
}
.sidebar-group:first-child { margin-top: 0; }

.sidebar-group-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: var(--fw-semibold);
  color: var(--text-subtle);
  padding: var(--sp-2) var(--sp-3) var(--sp-1);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
  position: relative;
  min-height: 44px;
}

.sidebar-item:hover {
  background: var(--primary-05);
  color: var(--primary);
}

.sidebar-item .icon {
  color: var(--text-subtle);
  transition: color var(--t-fast);
}
.sidebar-item:hover .icon { color: var(--primary); }

.sidebar-item.active {
  background: var(--primary-10);
  color: var(--primary);
  font-weight: var(--fw-semibold);
}
.sidebar-item.active .icon { color: var(--primary); }
.sidebar-item.active::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
}

.sidebar-footer {
  padding: var(--sp-4);
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.sidebar-footer-info {
  flex: 1;
  min-width: 0;
}
.sidebar-footer-info strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-footer-info span {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-logout {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--t-fast), color var(--t-fast);
}
.sidebar-logout:hover { background: var(--danger-soft); color: var(--danger); }

/* -------- Main content -------- */
.main {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: var(--sp-6) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  max-width: calc(var(--container-max) + var(--sidebar-w));
  width: 100%;
}

.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 40px;
}

.main-title {
  font-size: var(--fs-3xl);
  letter-spacing: var(--tracking-tight);
}

.main-section {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.main-section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
}

.section-title {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-tight);
}

/* -------- Grid helpers -------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}

/* -------- Mobile toggle button -------- */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text);
  align-items: center;
  justify-content: center;
}

/* -------- Responsive (<1024px) -------- */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding: var(--sp-4); }
  .mobile-menu-btn { display: inline-flex; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .main-title { font-size: var(--fs-2xl); }

  /* Backdrop cuando sidebar esta abierta */
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(14, 17, 48, 0.4);
    z-index: calc(var(--z-nav) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-base);
  }
  .sidebar-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .main { padding: var(--sp-3); }
  .login-card { padding: var(--sp-6) var(--sp-5); }
}