:root {
  --black: #111111;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-600: #525252;
  --radius: 4px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Barlow', Helvetica, Arial, sans-serif;
  background: var(--white);
  color: var(--black);
}

.hidden { display: none !important; }

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black);
}
.login-box {
  background: var(--white);
  padding: 44px 36px;
  border-radius: var(--radius);
  width: 320px;
  text-align: center;
}
.login-box h1 {
  margin: 0 0 28px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.login-box input {
  width: 100%;
  padding: 11px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
}
.login-box input:focus { outline: none; border-color: var(--black); }
.login-box button { width: 100%; margin-top: 4px; }
.error-text { color: var(--black); font-size: 12px; margin: 10px 0 0; min-height: 16px; }

.btn {
  border: 1px solid var(--black);
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: #000; }
.btn-ghost { background: transparent; color: var(--black); border-color: var(--gray-300); }
.btn-ghost:hover { background: var(--gray-100); }
.btn-danger { background: var(--white); color: var(--black); border-color: var(--black); }
.btn-danger:hover { background: var(--black); color: var(--white); }

.app { max-width: 1100px; margin: 0 auto; padding: 0 20px 60px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding: 20px 0;
  border-bottom: 2px solid var(--black);
}
.topbar-title h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
}
.topbar-title span {
  color: var(--gray-400);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.topbar-actions { display: flex; gap: 10px; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin-bottom: 24px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
}
.stat-card { background: var(--white); padding: 16px 18px; }
.stat-card .stat-value { font-size: 26px; font-weight: 800; }
.stat-card .stat-label {
  font-size: 11px;
  color: var(--gray-400);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab {
  border: 1px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-600);
  padding: 7px 14px;
  border-radius: var(--radius);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
}
.tab.active { background: var(--black); color: var(--white); border-color: var(--black); }
.search-input {
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 13px;
  min-width: 220px;
  font-family: inherit;
}
.search-input:focus { outline: none; border-color: var(--black); }

.table-wrap {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}
.leads-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.leads-table th {
  text-align: left;
  padding: 12px 14px;
  background: var(--black);
  color: var(--white);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.leads-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--gray-200);
  vertical-align: top;
}
.leads-table tr:last-child td { border-bottom: none; }
.leads-table tr:hover { background: var(--gray-100); cursor: pointer; }
.notes-cell {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--gray-600);
}
.empty-state { text-align: center; padding: 40px; color: var(--gray-400); }

.status-select {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 5px 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
}
.status-nowy { background: var(--white); color: var(--black); border-color: var(--black); }
.status-kontakt { background: var(--gray-100); color: var(--black); border-color: var(--gray-300); }
.status-wycena { background: var(--gray-200); color: var(--black); border-color: var(--gray-400); }
.status-wygrany { background: var(--black); color: var(--white); border-color: var(--black); }
.status-przegrany { background: var(--white); color: var(--gray-400); border-color: var(--gray-300); border-style: dashed; text-decoration: line-through; }

.source-badge {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 3px 8px;
  border-radius: var(--radius);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal-box {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius);
  width: 380px;
  max-width: 92vw;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--black);
}
.modal-box h2 {
  margin: 0 0 20px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.modal-box label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 12px;
}
.modal-box input,
.modal-box select,
.modal-box textarea {
  width: 100%;
  margin-top: 5px;
  padding: 9px 10px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--black);
  text-transform: none;
  font-weight: 400;
  letter-spacing: normal;
}
.modal-box input:focus,
.modal-box select:focus,
.modal-box textarea:focus { outline: none; border-color: var(--black); }
.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}
.modal-actions-right { display: flex; gap: 8px; margin-left: auto; }

@media (max-width: 640px) {
  .leads-table thead { display: none; }
  .leads-table, .leads-table tbody, .leads-table tr, .leads-table td { display: block; width: 100%; }
  .leads-table tr { border-bottom: 1px solid var(--gray-200); padding: 10px 0; }
  .leads-table td { border: none; padding: 4px 14px; }
  .leads-table td:before {
    content: attr(data-label);
    display: block;
    font-size: 10px;
    color: var(--gray-400);
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }
}