/* =========================================================================
   VARIABLES DE DISEÑO Y TEMAS
   ========================================================================= */
:root {
  --color-primary: #FD1843;
  --color-primary-hover: #D90F35;
  --color-primary-light: rgba(253, 24, 67, 0.1);
  
  --bg-main: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-sidebar: #FFFFFF;
  
  --text-main: #0F172A;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  
  --color-warning: #F59E0B;
  --color-danger: #EF4444;
  --color-success: #10B981;

  --sidebar-width-expanded: 260px;
  --sidebar-width-collapsed: 72px;
  --navbar-height: 64px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-main: #0F172A;
  --bg-surface: #1E293B;
  --bg-sidebar: #1E293B;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --border-color: #334155;
}

/* =========================================================================
   RESET Y BASE
   ========================================================================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  touch-action: manipulation;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: none;
}

/* Clases Útiles */
.hidden { display: none !important; }
.icon-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.icon-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.brand-icon-svg {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  fill: var(--color-primary);
}

.icon-svg {
  width: 1.4rem;
  height: 1.4rem;
  flex-shrink: 0;
  fill: currentColor;
  transition: transform 0.2s ease;
}

.kpi-icon-svg {
  width: 2rem;
  height: 2rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  box-sizing: content-box;
}

.kpi-icon-svg.primary {
  background-color: var(--color-primary-light);
  fill: var(--color-primary);
}

.kpi-icon-svg.warning {
  background-color: rgba(245, 158, 11, 0.1);
  fill: var(--color-warning);
}

.kpi-icon-svg.danger {
  background-color: rgba(239, 68, 68, 0.1);
  fill: var(--color-danger);
}

/* =========================================================================
   PANTALLA DE LOGIN
   ========================================================================= */
.screen-container {
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
}

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.brand-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.brand-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
}

.btn-google:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.google-logo {
  width: 20px;
  height: 20px;
}

.error-message {
  margin-top: 1rem;
  padding: 0.75rem;
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  text-align: center;
}

/* =========================================================================
   OVERLAY Y SIDEBAR MÓVIL
   ========================================================================= */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

#app-screen {
  display: flex;
  width: 100vw;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
}

.sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  white-space: nowrap;
  flex-shrink: 0;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

.sidebar-header {
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-primary);
}

.brand-name {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
  transition: opacity 0.2s ease;
}

.sidebar-menu {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 0.75rem;
  flex-grow: 1;
  overflow-y: auto;
  min-height: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.nav-item:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-item.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.link-text {
  transition: opacity 0.2s ease;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.btn-logout {
  width: 100%;
  border: none;
  background: none;
  cursor: pointer;
}

/* COMPORTAMIENTO DESKTOP (OVERLAY HOVER VS PINNED) */
@media (min-width: 769px) {
  .sidebar {
    width: var(--sidebar-width-collapsed);
    position: relative;
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease;
  }

  .sidebar:not(.pinned):hover {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--sidebar-width-expanded);
    box-shadow: var(--shadow-lg);
    z-index: 200;
  }

  .sidebar.pinned {
    width: var(--sidebar-width-expanded);
    position: relative;
    box-shadow: none;
    z-index: 100;
  }

  .sidebar.pinned #pin-sidebar-btn .icon-svg {
    color: var(--color-primary);
    transform: rotate(-45deg);
  }

  .sidebar:not(.pinned):not(:hover) .brand-name,
  .sidebar:not(.pinned):not(:hover) .link-text {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .sidebar.pinned .brand-name,
  .sidebar.pinned .link-text,
  .sidebar:not(.pinned):hover .brand-name,
  .sidebar:not(.pinned):hover .link-text {
    opacity: 1;
    visibility: visible;
  }

  .sidebar-overlay {
    display: none !important;
  }
}

/* COMPORTAMIENTO MÓVIL */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: calc(-1 * var(--sidebar-width-expanded));
    width: var(--sidebar-width-expanded);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: left 0.3s ease;
  }

  .sidebar.mobile-open {
    left: 0;
  }

  .sidebar .brand-name,
  .sidebar .link-text {
    opacity: 1;
    visibility: visible;
  }

  #pin-sidebar-btn {
    display: none;
  }
}

/* =========================================================================
   CONTENEDOR PRINCIPAL Y NAVBAR SUPERIOR
   ========================================================================= */
.main-wrapper {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-navbar {
  height: var(--navbar-height);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.avatar-img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-primary);
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.1;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* =========================================================================
   ÁREA DE CONTENIDO Y DASHBOARD
   ========================================================================= */
.content-area {
  padding: 1.5rem;
  flex-grow: 1;
  overflow-y: auto;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.kpi-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.kpi-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =========================================================================
   ESTILOS DE LA SECCIÓN DE SEGUIMIENTO / AGENDA DIARIA
   ========================================================================= */
.agenda-header {
  margin-bottom: 1.25rem;
}

.agenda-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

.date-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.quick-add-task {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  background-color: var(--bg-surface);
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.quick-add-task input[type="text"] {
  flex-grow: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  color: var(--text-main);
}

.quick-add-task select {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-size: 0.85rem;
  outline: none;
}

.btn-add-task {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-add-task:hover {
  background-color: var(--color-primary-hover);
}

.task-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.filter-btn {
  background: none;
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.tasks-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.task-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.task-card.overdue {
  border-left: 4px solid var(--color-danger);
}

.task-checkbox {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: bold;
  transition: var(--transition);
}

.task-checkbox.checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.task-details {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow: hidden;
}

.task-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}

.task-title.completed {
  text-decoration: line-through;
  color: var(--text-muted);
}

.task-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.task-badge {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  text-transform: capitalize;
}

.priority-alta {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.priority-media {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.priority-baja {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.overdue-badge {
  background-color: var(--color-danger);
  color: #FFFFFF;
}

.task-delete-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: var(--transition);
}

.task-delete-btn:hover {
  color: var(--color-danger);
  background-color: rgba(239, 68, 68, 0.1);
}