/* ============================================================
   CRM BVG — Design System
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- Tokens ---- */
:root {
  --primary: #45936c;
  --primary-dark: #357a58;
  --primary-light: #5ab580;
  --primary-ultra-light: #e8f5ee;
  --secondary: #f3c363;
  --secondary-dark: #dba93e;
  --secondary-light: #fad98a;

  --bg: #f4f6f9;
  --bg-card: #ffffff;
  --bg-sidebar: #1a2332;
  --bg-sidebar-hover: #243347;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: all .2s cubic-bezier(.4,0,.2,1);

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

  --sidebar-width: 260px;
  --header-height: 64px;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-sidebar: #0d1929;
  --bg-sidebar-hover: #1e2d42;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  --border: #2d3748;
  --primary-ultra-light: #1a3326;
  --shadow: 0 1px 3px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.2);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.4);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}
a { color: var(--primary); text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

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

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.3; color: var(--text); }
h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
p { color: var(--text-muted); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.2rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: .01em;
  transition: var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 12px rgba(69,147,108,.4); }
.btn-secondary { background: var(--secondary); color: #1e293b; }
.btn-secondary:hover { background: var(--secondary-dark); }
.btn-outline { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-ultra-light); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }
.btn-sm { padding: .4rem .8rem; font-size: .8125rem; }
.btn-lg { padding: .8rem 1.75rem; font-size: 1rem; }
.btn-icon { padding: .55rem; border-radius: var(--radius-sm); }
.btn-full { width: 100%; justify-content: center; }

/* ---- Inputs ---- */
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-label { font-size: .875rem; font-weight: 500; color: var(--text); }
.form-control {
  width: 100%;
  padding: .65rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-size: .9rem;
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(69,147,108,.15); }
.form-control::placeholder { color: var(--text-light); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); }
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.card-body { padding: 1.5rem; }
.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
  border-radius: 0 0 var(--radius) var(--radius);
}

/* ---- Badges / Tags ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .6rem;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge-primary { background: var(--primary-ultra-light); color: var(--primary-dark); }
.badge-secondary { background: #fef9ec; color: #92400e; }
.badge-success { background: #dcfce7; color: #15803d; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #dc2626; }
.badge-info { background: #dbeafe; color: #1d4ed8; }
.badge-gray { background: #f1f5f9; color: #475569; }

/* Status badges */
.status-lead { background: #dbeafe; color: #1d4ed8; }
.status-potential { background: #fef9ec; color: #92400e; }
.status-prospect { background: #f3e8ff; color: #7c3aed; }
.status-client { background: #dcfce7; color: #15803d; }
.status-inactive { background: #f1f5f9; color: #475569; }
.status-lost { background: #fee2e2; color: #dc2626; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  animation: fadeIn .2s ease;
}
.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp .25s ease;
}
.modal-lg { max-width: 800px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.modal-body { padding: 1.5rem; }
.modal-footer {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}
.modal-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: .25rem;
  border-radius: var(--radius-sm);
  display: flex;
  transition: var(--transition);
}
.modal-close:hover { background: var(--bg); color: var(--text); }

/* ---- Table ---- */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.table thead { background: var(--bg); }
.table th {
  padding: .75rem 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table td {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--bg); }
.table tbody tr.clickable-row { cursor: pointer; transition: background .15s ease; }
.table tbody tr.clickable-row:hover td { background: var(--primary-ultra-light) !important; }

/* ---- Avatar ---- */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 600;
  flex-shrink: 0;
  background: var(--primary-ultra-light);
  color: var(--primary);
  overflow: hidden;
}
.avatar-xs { width: 28px; height: 28px; font-size: .75rem; }
.avatar-sm { width: 36px; height: 36px; font-size: .875rem; }
.avatar-md { width: 44px; height: 44px; font-size: 1rem; }
.avatar-lg { width: 56px; height: 56px; font-size: 1.25rem; }

/* ---- Loading ---- */
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  flex-direction: column;
  gap: 1rem;
  color: var(--text-muted);
}

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 9999;
}
.toast {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .875rem 1.25rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  font-size: .875rem;
  font-weight: 500;
  min-width: 280px;
  animation: slideInRight .3s ease;
  color: var(--text);
}
.toast-success { border-color: var(--success); }
.toast-error { border-color: var(--danger); }
.toast-warning { border-color: var(--warning); }
.toast-icon { font-size: 1.1rem; }

/* ---- Animations ---- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeOut { to { opacity: 0; transform: translateY(-8px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }

/* ---- Utilities ---- */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.text-muted { color: var(--text-muted); }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---- Empty State ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  gap: 1rem;
}
.empty-state .empty-icon { font-size: 3.5rem; opacity: .4; }
.empty-state h3 { color: var(--text); font-size: 1.125rem; }
.empty-state p { color: var(--text-muted); font-size: .9rem; max-width: 320px; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
}