* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --navy: #0f2942;
  --navy-light: #163a5c;
  --steel: #3a6d99;
  --accent: #d64545;
  --accent-dark: #b53737;
  --success: #1e8e5a;
  --warning: #b8860b;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --text: #1b2733;
  --text-muted: #6b7785;
  --border: #dbe1e8;
  --shadow: 0 1px 3px rgba(15, 41, 66, 0.08), 0 1px 2px rgba(15, 41, 66, 0.06);
  --shadow-lg: 0 8px 24px rgba(15, 41, 66, 0.12);
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ============ LOGIN PAGE ============ */

.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-light) 55%, var(--steel) 100%);
  padding: 1.5rem;
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2.25rem;
  max-width: 400px;
  width: 100%;
}

.login-logo {
  display: block;
  max-width: 220px;
  margin: 0 auto 1.5rem;
}

.login-card h1 {
  font-size: 1.4rem;
  text-align: center;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

.subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.login-card .form-group {
  margin-bottom: 1.1rem;
}

/* ============ NAVBAR ============ */

.navbar {
  background: var(--navy);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-logo {
  height: 32px;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: #fff;
  font-size: 0.9rem;
}

.logout-btn {
  background: var(--accent);
  color: #fff;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.85rem;
  transition: background 0.2s ease;
}

.logout-btn:hover {
  background: var(--accent-dark);
}

/* ============ LAYOUT ============ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Sekcje 1+2 obok siebie: lewa kolumna (1 + przyciski), prawa (2 + 3) */
.form-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

.form-col {
  min-width: 0; /* pozwala kolumnie się skurczyć zamiast rozpychać grid */
}

.header {
  margin-bottom: 1.5rem;
}

.header h1 {
  font-size: 1.7rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
}

.header p {
  color: var(--text-muted);
}

.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.required-status {
  flex: none;
  white-space: nowrap;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(214, 69, 69, 0.12);
  color: var(--accent-dark);
  border: 1px solid rgba(214, 69, 69, 0.3);
  margin-top: 0.2rem;
}

.required-status.is-complete {
  background: rgba(30, 142, 90, 0.12);
  color: var(--success);
  border-color: rgba(30, 142, 90, 0.3);
}

@media (max-width: 500px) {
  .header-top {
    flex-direction: column;
  }
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
}

.card h2 {
  font-size: 1.05rem;
  color: var(--navy);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.6rem;
  margin-bottom: 1.25rem;
}

.hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: #eef3f8;
  border-left: 3px solid var(--steel);
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
}

/* ============ FORM ELEMENTS ============ */

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group-wide {
  grid-column: 1 / -1;
}

/* Euro i "Firma (adres rozładunku)" jedno pod drugim w tej samej kolumnie siatki */
.form-group-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  resize: vertical;
}

textarea[readonly] {
  background: #f1f4f7;
  color: var(--text-muted);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--steel);
  box-shadow: 0 0 0 3px rgba(58, 109, 153, 0.15);
}

small {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ============ BUTTONS ============ */

.form-buttons {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
}

.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  flex: 1;
}

.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 14px rgba(214, 69, 69, 0.35);
}

.btn-primary:disabled {
  background: #a9b3bd;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #eef1f4;
}

.btn-secondary:disabled {
  background: #f1f4f7;
  color: #a9b3bd;
  border-color: #e5e9ee;
  cursor: not-allowed;
}

/* Oba przyciski generowania stają się zielone (różne odcienie), gdy formularz
   jest kompletny — od razu widać, że można wygenerować PDF. */
#generateBtn:not(:disabled) {
  background: #1e8e5a;
  color: #fff;
  border-color: transparent;
}

#generateBtn:not(:disabled):hover {
  background: #166b44;
  box-shadow: 0 4px 14px rgba(30, 142, 90, 0.35);
}

#previewBtn:not(:disabled) {
  background: #52b788;
  color: #fff;
  border-color: transparent;
}

#previewBtn:not(:disabled):hover {
  background: #3f9c70;
  box-shadow: 0 4px 14px rgba(82, 183, 136, 0.35);
}

/* Pasek akcji pod sekcją 1 */
.action-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(15, 41, 66, 0.06);
}

.action-bar .btn,
.action-bar .btn-primary {
  flex: 0 0 auto;
}

.btn-fetch {
  background: var(--steel);
  color: #fff;
}

.btn-fetch:hover {
  background: var(--navy);
  box-shadow: 0 4px 14px rgba(58, 109, 153, 0.35);
}

.btn-fetch:disabled {
  background: #a9b3bd;
  cursor: not-allowed;
  box-shadow: none;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============ STATUS / ALERTS ============ */

.status-message,
.alert {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 6px;
  border-left: 4px solid var(--steel);
  background: rgba(58, 109, 153, 0.08);
  color: var(--navy);
  font-size: 0.9rem;
}

.status-message.success,
.alert-success {
  border-left-color: var(--success);
  background: rgba(30, 142, 90, 0.1);
  color: var(--success);
}

.status-message.error,
.alert-error {
  border-left-color: var(--accent);
  background: rgba(214, 69, 69, 0.1);
  color: var(--accent-dark);
}

.status-message.warning {
  border-left-color: var(--warning);
  background: rgba(184, 134, 11, 0.1);
  color: var(--warning);
}

/* ============ USER TABLE (admin panel) ============ */

.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.user-table th,
.user-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.user-table th {
  color: var(--navy);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.user-table .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
}

.user-table .actions form {
  display: inline;
}

.link-btn {
  background: none;
  border: none;
  color: var(--steel);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0;
  text-decoration: underline;
}

.link-btn:hover {
  color: var(--navy);
}

.link-danger {
  color: var(--accent);
}

.link-danger:hover {
  color: var(--accent-dark);
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-active {
  background: rgba(30, 142, 90, 0.15);
  color: var(--success);
}

.badge-inactive {
  background: rgba(214, 69, 69, 0.15);
  color: var(--accent-dark);
}

.badge-admin {
  background: rgba(58, 109, 153, 0.15);
  color: var(--steel);
}

/* ============ STATYSTYKI (admin/stats.php) ============ */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.1;
}

.stat-label {
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stat-card-warn .stat-value {
  color: var(--accent-dark);
}

/* Render area used to build the PDF - kept off-screen, not display:none
   (html2canvas needs real layout dimensions to render correctly) */
.pdf-render-area {
  position: fixed;
  top: 0;
  left: -10000px;
  width: 794px; /* A4 @ 96dpi */
}

/* ============ RESPONSIVE ============ */

@media (max-width: 960px) {
  .form-columns {
    grid-template-columns: 1fr;
  }
}

/* ============ USTAWIENIA (settings.php): klienci ============ */

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.client-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  background: #fbfcfd;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.client-card:hover {
  border-color: var(--steel);
  box-shadow: 0 2px 10px rgba(15, 41, 66, 0.07);
}

.client-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.client-card-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  color: var(--navy);
  font-size: 1rem;
}

.client-delete-btn {
  font-size: 0.78rem;
  flex: none;
  white-space: nowrap;
}

.client-edit-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.client-edit-form textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.87rem;
  line-height: 1.4;
  resize: vertical;
  background: #fff;
}

.client-card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.client-defaults-row {
  align-items: stretch;
}

.client-defaults-row .form-group {
  flex: 1;
  min-width: 0;
}

.client-defaults-row label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.client-defaults-row select {
  font-size: 0.85rem;
  padding: 0.4rem 0.5rem;
}

.euro-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: normal;
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.euro-check input {
  width: auto;
}

.btn-sm {
  flex: none;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
}

.client-template-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--border);
}

.template-status {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  font-size: 0.8rem;
}

.template-status-label {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.72rem;
}

.template-current {
  font-family: monospace;
  color: var(--navy);
  font-weight: 600;
  word-break: break-all;
}

.template-current-empty {
  font-family: inherit;
  font-style: italic;
  color: var(--accent-dark);
  font-weight: 500;
}

.template-download-link {
  font-size: 0.78rem;
  color: var(--steel);
  text-decoration: underline;
  white-space: nowrap;
}

.template-download-link:hover {
  color: var(--navy);
}

.template-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}

.template-upload-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.template-upload-controls input[type="file"] {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  padding: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}

/* ============ USTAWIENIA: słowniki sekcji 2 ============ */

.dict-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.dict-col h3 {
  font-size: 0.95rem;
  color: var(--navy);
  margin-bottom: 0.6rem;
}

.dict-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.dict-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background: #f4f6f8;
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
  font-size: 0.85rem;
}

.dict-list li form {
  display: inline;
}

.dict-empty {
  color: var(--text-muted);
  font-style: italic;
  background: transparent !important;
  padding: 0 !important;
}

.dict-add-form {
  display: flex;
  gap: 0.5rem;
}

.dict-add-form input[type="text"] {
  flex: 1;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
}

.dict-add-form .btn {
  flex: none;
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

@media (max-width: 700px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.25rem;
  }

  .form-buttons {
    flex-direction: column;
  }

  .navbar-user span {
    display: none;
  }

  .client-row {
    flex-direction: column;
  }

  .client-row-body {
    flex-direction: column;
    align-items: stretch;
  }
}

/* Zakładki w Ustawieniach (Klienci / Odbiorcy) */
.settings-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.settings-tab-btn {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.settings-tab-btn:hover {
  color: var(--navy);
}

.settings-tab-btn.is-active {
  color: var(--navy);
  border-bottom-color: var(--accent);
}

/* Pole obowiązkowe, puste i już odwiedzone przez użytkownika (blur / próba generowania) */
.field-error {
  border-color: #d64545 !important;
  background: rgba(214, 69, 69, 0.12) !important;
}

.field-error:focus {
  outline-color: #d64545;
}

/* Podgląd PDF przed pobraniem */
.preview-modal[hidden] {
  display: none;
}

.preview-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
}

.preview-modal-content {
  background: #fff;
  border-radius: 12px;
  width: min(900px, 100%);
  height: min(85vh, 1000px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.preview-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid #e5e7eb;
  font-weight: 600;
}

.preview-modal-header .link-btn {
  font-size: 1.4rem;
  line-height: 1;
  color: #64748b;
}

.preview-frame {
  flex: 1;
  border: none;
  width: 100%;
}

.preview-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0.9rem 1.25rem;
  border-top: 1px solid #e5e7eb;
}

@media (max-width: 640px) {
  .preview-modal {
    padding: 0;
  }

  .preview-modal-content {
    width: 100%;
    height: 100%;
    border-radius: 0;
  }
}