/* =========================================================
   LAYOUT — Login, App Shell, Topbar, Sidebar, Content, Pages
   ========================================================= */

/* ── LOGIN ── */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
  background: var(--bg);
  transition: background 0.25s;
}

.login-card {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 340px;
  max-width: 100%;
  box-shadow: var(--shadow-md);
  transition: background 0.25s, border-color 0.25s;
}

/* Logo en login: contenedor con aspect ratio fijo */
.login-logo-wrap {
  width: 100%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.login-logo-wrap img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.login-subtitle {
  color: var(--muted);
  font-size: 12px;
  text-align: center;
  margin-bottom: 1.5rem;
}

/* =========================================================
   APP SHELL
   ========================================================= */
#app { display: none; min-height: 100vh; }

/* ── TOPBAR ── */
.topbar {
  background: var(--surface);
  border-bottom: 0.5px solid var(--border);
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: background 0.25s, border-color 0.25s;
}

.topbar-left { display: flex; align-items: center; gap: 10px; }

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text);
  font-size: 20px;
  line-height: 1;
}

/* Logo en topbar */
.topbar-logo-wrap {
  height: 40px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.topbar-logo-wrap img {
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.topbar-right { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
#topbar-user { font-size: 13px; color: var(--text2); font-weight: 500; }

/* ── SIDEBAR ── */
.sidebar {
  position: fixed;
  top: var(--topbar-h);
  left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 0.5px solid var(--border);
  z-index: 90;
  transition: transform 0.2s, background 0.25s, border-color 0.25s;
  overflow-y: auto;
}
.sidebar.hidden { transform: translateX(-100%); }

.sidebar-section { padding: 1rem 0 0.5rem; border-bottom: 0.5px solid var(--border); }
.sidebar-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 0 1rem 0.5rem;
}

/* ── CONTENT ── */
.content {
  margin-top: var(--topbar-h);
  margin-left: var(--sidebar-w);
  padding: 1.25rem;
  min-height: calc(100vh - var(--topbar-h));
  transition: margin-left 0.2s;
  background: var(--bg);
  position: relative;
  z-index: 1;
}
.content.full { margin-left: 0; }
.page { display: none; }
.page.active { display: block; min-height: 200px; }
.page-title { font-size: 18px; font-weight: 600; margin-bottom: 1.25rem; color: var(--text); }

/* ── MÉTRICAS ── */
.metrics { margin-bottom: 1.25rem; }
.metrics-row1 { display: grid; grid-template-columns: repeat(6,1fr); gap: 10px; margin-bottom: 8px; }
.metrics-row2 { display: grid; grid-template-columns: repeat(6,1fr); gap: 10px; }
.metrics-row2 .mc:nth-child(1) { grid-column: 3; }
.metrics-row2 .mc:nth-child(2) { grid-column: 4; }
.metrics-row2 .mc:nth-child(3) { grid-column: 5; }
.metrics-row2 .mc:nth-child(4) { grid-column: 6; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }
  .content { margin-left: 0; }
  .metrics-row1 { grid-template-columns: repeat(2,1fr); }
  .metrics-row2 { grid-template-columns: repeat(3,1fr); }
  .metrics-row2 .mc:nth-child(1) { grid-column: 1; }
  .metrics-row2 .mc:nth-child(2) { grid-column: 2; }
  .metrics-row2 .mc:nth-child(3) { grid-column: 3; }
  .metrics-row2 .mc:nth-child(4) { grid-column: auto; }
  .controls-row { flex-direction: column; }
  .controls-row input,
  .controls-row select { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .topbar-logo-wrap img { max-width: 140px; }
}

/* ── PAGE HEADER ── */
.page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:1.25rem; }
.page-actions { display:flex; gap:8px; }

@media(max-width:768px){
  .curva-cards { grid-template-columns:1fr 1fr; }
  .page-header { flex-direction:column; align-items:flex-start; gap:8px; }
}