/* ===================================================================
   SIGI 2.0 — Design tokens
   Paleta funcional tipo bodega/kardex: graphite + amber de señalización.
   =================================================================== */
:root {
  /* Color */
  --color-bg: #F3F4F6;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F8F9FA;

  --color-sidebar: #1B2430;
  --color-sidebar-alt: #232E3C;
  --color-sidebar-line: #303C4C;
  --color-sidebar-text: #AEB8C4;
  --color-sidebar-text-active: #FFFFFF;

  --color-ink: #1B2430;
  --color-ink-soft: #5B6472;
  --color-ink-faint: #8A93A0;

  --color-border: #DDE1E6;
  --color-border-soft: #EAEDF0;

  --color-accent: #E8871E;
  --color-accent-ink: #7A4508;
  --color-accent-soft: #FCEBD6;

  --color-success: #2F8F5B;
  --color-success-soft: #E4F3EA;
  --color-danger: #C24141;
  --color-danger-soft: #FBEAEA;
  --color-warning: #C99A2E;
  --color-warning-soft: #FBF3DF;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Layout */
  --sidebar-width: 232px;
  --topbar-height: 60px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 1px 2px rgba(27, 36, 48, 0.06), 0 1px 1px rgba(27, 36, 48, 0.04);
}

* { box-sizing: border-box; }

/* Los componentes de abajo fijan su propio "display" (flex/grid), lo
   que pisa la regla nativa [hidden]{display:none} del navegador —
   sin esto, .login-screen y .app-shell quedan visibles siempre,
   sin importar la propiedad .hidden que les pone app.js. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  margin: 0;
}

a { color: inherit; text-decoration: none; }

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

/* ===================== APP SHELL ===================== */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}

/* ===================== SIDEBAR — fichero Kardex ===================== */
.sidebar {
  background: var(--color-sidebar);
  color: var(--color-sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 20px 0 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-header {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--color-sidebar-line);
  margin-bottom: 12px;
}

.sidebar-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.sidebar-version {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent);
}

.kardex {
  flex: 1;
  overflow-y: auto;
  padding: 4px 12px;
}

.kardex-group-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin: 16px 8px 6px;
}

.kardex-group-label:first-child { margin-top: 4px; }

/* Cada módulo se presenta como una pestaña/ficha de índice: el código
   mono a la izquierda imita la muesca de una tarjeta Kardex física. */
.kardex-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition: background 0.15s ease, color 0.15s ease;
  border-left: 2px solid transparent;
}

.kardex-tab:hover {
  background: var(--color-sidebar-alt);
  color: var(--color-sidebar-text-active);
}

.kardex-tab.active {
  background: var(--color-sidebar-alt);
  color: var(--color-sidebar-text-active);
  border-left: 2px solid var(--color-accent);
}

.kardex-tab-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(232, 135, 30, 0.12);
  padding: 2px 5px;
  border-radius: 3px;
  min-width: 22px;
  text-align: center;
}

.kardex-tab-name {
  font-size: 13px;
  font-weight: 500;
}

.sidebar-footer {
  padding: 14px 20px 0;
  border-top: 1px solid var(--color-sidebar-line);
  display: flex;
  align-items: center;
  gap: 8px;
}

.env-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  padding: 2px 6px;
  border-radius: 3px;
}

.sidebar-footer-text {
  font-size: 11px;
  color: var(--color-ink-faint);
}

/* ===================== MAIN ===================== */
.app-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar-crumb {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
}

.topbar-user {
  font-size: 12px;
  color: var(--color-ink-soft);
}

.app-content {
  padding: 28px;
  max-width: 1180px;
  width: 100%;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
    padding: 10px 0;
  }
  .sidebar-header { border-bottom: none; padding: 0 12px; margin-bottom: 0; }
  .kardex { display: flex; padding: 0 8px; }
  .kardex-group-label { display: none; }
  .kardex-tab { white-space: nowrap; }
  .sidebar-footer { display: none; }
  .app-content { padding: 18px; }
}