/* ============================================================
   CRM Web — Stylesheet principal
   Modo oscuro por defecto, idéntico al app de escritorio
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg-base:        #0f1117;
  --bg-surface:     #1a1d27;
  --bg-elevated:    #22263a;
  --bg-hover:       #2a2f45;
  --border:         #2e3347;
  --border-light:   #3a4060;

  --sidebar-bg:     #13151f;
  --sidebar-active: #1e2235;
  --sidebar-width:  240px;

  --text-primary:   #e8eaf6;
  --text-secondary: #8b92b8;
  --text-muted:     #5a6080;

  --accent:         #6366f1;
  --accent-hover:   #818cf8;
  --accent-light:   rgba(99,102,241,.15);

  --success:        #22c55e;
  --warning:        #f59e0b;
  --danger:         #ef4444;
  --info:           #3b82f6;

  --success-bg:     rgba(34,197,94,.12);
  --warning-bg:     rgba(245,158,11,.12);
  --danger-bg:      rgba(239,68,68,.12);
  --info-bg:        rgba(59,130,246,.12);

  --radius:         8px;
  --radius-lg:      12px;
  --shadow:         0 4px 24px rgba(0,0,0,.4);
  --shadow-sm:      0 2px 8px rgba(0,0,0,.3);

  --topbar-h:       56px;
  --transition:     .18s ease;
  --font:           'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); }
input, select, textarea { font-family: var(--font); }

/* ── Layout ─────────────────────────────────────────────────── */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: width var(--transition), transform var(--transition);
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
  min-height: 64px;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: .95rem;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-logo i { font-size: 1.2rem; flex-shrink: 0; }
.sidebar-title { transition: opacity var(--transition); }

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1rem;
  padding: 6px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto;
}
.sidebar-nav ul { display: flex; flex-direction: column; gap: 2px; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: .9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-link i { width: 18px; text-align: center; flex-shrink: 0; }
.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-link.active {
  background: var(--sidebar-active);
  color: var(--accent-hover);
  border-left: 3px solid var(--accent);
}

.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--border);
}
.user-info { display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.user-details { display: flex; flex-direction: column; overflow: hidden; }
.user-name { font-size: .85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.logout-link { font-size: .75rem; color: var(--text-muted); }
.logout-link:hover { color: var(--danger); }

/* Sidebar collapsed */
.sidebar.collapsed {
  width: 56px;
}
.sidebar.collapsed .sidebar-title,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .user-details { display: none; }
.sidebar.collapsed .sidebar-logo { justify-content: center; }
.sidebar.collapsed .nav-link { justify-content: center; padding: 10px; }
.sidebar.collapsed .user-info { justify-content: center; }

/* ── Main Content ────────────────────────────────────────────── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition);
}
.main-content.expanded { margin-left: 56px; }

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 90;
}
.topbar-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.1rem;
  padding: 6px;
  border-radius: var(--radius);
  display: none;
}
.topbar-right { display: flex; align-items: center; gap: 16px; }
.topbar-user { font-size: .85rem; color: var(--text-secondary); }

/* ── Page body ───────────────────────────────────────────────── */
.page-body {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  width: 100%;
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}
.page-subtitle {
  font-size: .85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-size: 1rem;
  font-weight: 600;
}

/* ── KPI Stats ───────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--accent); }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.stat-icon.accent  { background: var(--accent-light); color: var(--accent); }
.stat-icon.success { background: var(--success-bg);   color: var(--success); }
.stat-icon.warning { background: var(--warning-bg);   color: var(--warning); }
.stat-icon.danger  { background: var(--danger-bg);    color: var(--danger);  }
.stat-icon.info    { background: var(--info-bg);      color: var(--info);    }

.stat-info { min-width: 0; }
.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.2;
}
.stat-label {
  font-size: .8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Charts grid ─────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}
.chart-container { position: relative; height: 240px; }

/* ── Tables ──────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}
thead th {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:hover { background: var(--bg-hover); }
tbody tr:last-child td { border-bottom: none; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: .73rem;
  font-weight: 600;
  text-transform: capitalize;
  white-space: nowrap;
}
.badge-success   { background: var(--success-bg); color: var(--success); }
.badge-warning   { background: var(--warning-bg); color: var(--warning); }
.badge-danger    { background: var(--danger-bg);  color: var(--danger);  }
.badge-info      { background: var(--info-bg);    color: var(--info);    }
.badge-secondary { background: var(--bg-elevated); color: var(--text-secondary); }

.pipeline-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .73rem;
  font-weight: 600;
}
.pipeline-lead        { background: rgba(107,114,128,.2); color: #9ca3af; }
.pipeline-prospecto   { background: var(--info-bg);       color: var(--info); }
.pipeline-propuesta   { background: rgba(168,85,247,.15); color: #c084fc; }
.pipeline-negociacion { background: var(--warning-bg);    color: var(--warning); }
.pipeline-cliente     { background: var(--success-bg);    color: var(--success); }
.pipeline-inactivo    { background: var(--danger-bg);     color: var(--danger); }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: .88rem;
  font-weight: 600;
  border: none;
  transition: background var(--transition), opacity var(--transition);
  white-space: nowrap;
}
.btn:disabled { opacity: .5; pointer-events: none; }
.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover  { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-hover); }
.btn-danger    { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239,68,68,.3); }
.btn-danger:hover { background: rgba(239,68,68,.25); }
.btn-success   { background: var(--success-bg); color: var(--success); border: 1px solid rgba(34,197,94,.3); }
.btn-sm { padding: 5px 11px; font-size: .8rem; }
.btn-icon { padding: 7px; border-radius: var(--radius); background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border); }
.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.form-control {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: .9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,.2);
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control option { background: var(--bg-elevated); }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.form-hint { font-size: .77rem; color: var(--text-muted); margin-top: 4px; }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(2px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  animation: modalIn .15s ease;
}
.modal-lg { max-width: 780px; }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(-12px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 1rem; font-weight: 700; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ── Search / Filters bar ────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.search-box {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 340px;
}
.search-box i {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: .85rem;
}
.search-box input {
  padding-left: 34px;
}
.filter-select {
  padding: 9px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: .88rem;
  min-width: 140px;
}

/* ── Progress bar ────────────────────────────────────────────── */
.progress {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 99px;
  transition: width .3s ease;
}
.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }
.progress-bar.danger  { background: var(--danger); }

/* ── Empty state ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state i { font-size: 3rem; margin-bottom: 14px; opacity: .4; }
.empty-state h3 { font-size: 1rem; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p  { font-size: .85rem; }

/* ── Tabs ────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  gap: 4px;
}
.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 16px;
  color: var(--text-secondary);
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  margin-bottom: -1px;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover  { color: var(--text-primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Pipeline kanban ─────────────────────────────────────────── */
.pipeline-board {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.pipeline-col {
  min-width: 220px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
}
.pipeline-col-header {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pipeline-count {
  background: var(--bg-elevated);
  border-radius: 99px;
  padding: 1px 7px;
  font-size: .72rem;
}
.pipeline-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color var(--transition);
}
.pipeline-card:hover { border-color: var(--accent); }
.pipeline-card-name { font-size: .88rem; font-weight: 600; margin-bottom: 4px; }
.pipeline-card-sub  { font-size: .78rem; color: var(--text-muted); }

/* ── Auth pages ──────────────────────────────────────────────── */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-base);
  padding: 24px;
}
.auth-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow);
}
.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}
.auth-logo i { font-size: 2.4rem; color: var(--accent); }
.auth-logo h1 { font-size: 1.4rem; font-weight: 800; margin-top: 8px; }
.auth-logo p  { font-size: .85rem; color: var(--text-secondary); }
.auth-footer  { text-align: center; margin-top: 18px; font-size: .85rem; color: var(--text-secondary); }

/* ── Toast notifications ─────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: .88rem;
  min-width: 250px;
  max-width: 360px;
  box-shadow: var(--shadow);
  animation: toastIn .2s ease;
}
.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: none; }
}

/* ── Utility ─────────────────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.mt-1  { margin-top: 4px; }
.mt-2  { margin-top: 8px; }
.mt-3  { margin-top: 12px; }
.mt-4  { margin-top: 16px; }
.mb-4  { margin-bottom: 16px; }
.text-muted { color: var(--text-muted); }
.text-sm    { font-size: .82rem; }
.text-right { text-align: right; }
.fw-bold     { font-weight: 700; }
.w-100  { width: 100%; }
.action-btns { display: flex; gap: 6px; align-items: center; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 300;
  }
  .sidebar.mobile-open { transform: none; }
  .main-content { margin-left: 0 !important; }
  .topbar-toggle { display: block; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .page-body { padding: 14px; }
  .stats-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 24px 18px; }
}

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Loading spinner ─────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Detail view ─────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.detail-item label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 3px;
}
.detail-item span { font-size: .9rem; font-weight: 500; }

/* ── File upload zone ────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  transition: border-color var(--transition), background var(--transition);
  cursor: pointer;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}
.upload-zone i { font-size: 2rem; margin-bottom: 10px; }
.upload-zone p  { font-size: .88rem; }