:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --border: #d8e0ea;
  --text: #1f2937;
  --muted: #64748b;
  --primary: #1e4d8c;
  --primary-hover: #163a6b;
  --accent: #0f766e;
  --danger-bg: #fef2f2;
  --danger-text: #b91c1c;
  --warning-bg: #fffbeb;
  --warning-text: #b45309;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: linear-gradient(180deg, #eef4fb 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 24px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 28px;
}

.company-logo {
  width: 150px;
  height: auto;
  flex-shrink: 0;
  object-fit: contain;
  margin-left: auto;
}

.app-header-text {
  flex: 1;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
}

.app-header h1 {
  margin: 0;
  font-size: 2rem;
  color: #0f172a;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.panel h2 {
  margin: 0 0 18px;
  font-size: 1.1rem;
  color: #0f172a;
}

.upload-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 130px;
  padding: 18px;
  border: 2px dashed #c7d2e0;
  border-radius: 12px;
  background: #f8fbff;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-align: center;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: #eef5ff;
}

.upload-zone.pending-reselect {
  border-color: #d97706;
  background: #fffbeb;
  animation: pulse-reselect 2s ease-in-out infinite;
}

.upload-zone.pending-reselect .upload-filename {
  color: #b45309;
}

@keyframes pulse-reselect {
  0%, 100% { box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.25); }
  50% { box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.15); }
}

.upload-zone.ready {
  border-color: var(--accent);
  background: #ecfdf5;
}

.upload-icon {
  font-size: 1.6rem;
}

.upload-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.upload-hint,
.upload-filename {
  font-size: 0.82rem;
  color: var(--muted);
}

.upload-filename {
  color: var(--accent);
  font-weight: 600;
}

.fields-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.88rem;
  font-weight: 600;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
}

.field input:focus {
  outline: 2px solid rgba(30, 77, 140, 0.25);
  border-color: var(--primary);
}

.field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  background: #fff;
}

.field-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
}

.preview-content .minuta-preview-monthly h3 {
  margin: 1.2em 0 0.4em;
  color: #1e3a5f;
  font-size: 1rem;
}

.preview-content .minuta-preview-monthly h4 {
  margin: 0.8em 0 0.3em;
  color: #2c5282;
  font-size: 0.92rem;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, opacity 0.2s;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:not(:disabled):hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: #e2e8f0;
  color: #0f172a;
}

.btn-outline {
  background: white;
  color: var(--primary);
  border-color: #bfd0e8;
}

.btn-outline:hover {
  background: #f8fbff;
}

.preview-panel {
  position: relative;
  min-height: 640px;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.preview-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.preview-toolbar[hidden] {
  display: none !important;
}

.preview-toolbar .btn-disabled {
  pointer-events: none;
  opacity: 0.45;
}

.btn-small {
  padding: 6px 10px;
  font-size: 0.82rem;
}

.preview-edit {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  background: #fafcff;
  max-height: 720px;
  overflow: auto;
}

.preview-edit[hidden] {
  display: none !important;
}

.edit-hint {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.draft-status {
  margin: 0 0 16px;
  color: #2f855a;
  font-size: 0.82rem;
}

.edit-section {
  margin-bottom: 18px;
}

.edit-section > label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: #1e3a5f;
}

.edit-label-hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
}

.edit-input,
.edit-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: white;
}

.edit-textarea {
  resize: vertical;
  min-height: 80px;
}

.edit-table-wrap {
  overflow-x: auto;
  margin-bottom: 8px;
}

.edit-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

.edit-table th,
.edit-table td {
  border: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
}

.edit-table th {
  background: #f8fafc;
  color: #2c5282;
  font-size: 0.85rem;
}

.edit-table .edit-input {
  border: none;
  padding: 6px 4px;
  background: transparent;
}

.edit-table .edit-input:focus {
  outline: 2px solid #bfdbfe;
  border-radius: 4px;
}

.btn-remove-row {
  min-width: 36px;
  padding: 4px 8px;
  line-height: 1;
}

.download-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preview-empty {
  align-items: center;
  justify-content: center;
  min-height: 520px;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  color: var(--muted);
  background: #fafcff;
}

.preview-empty[hidden] {
  display: none !important;
}

.preview-empty:not([hidden]) {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
  padding: 2rem;
}

.preview-tip {
  max-width: 420px;
  font-size: 0.85rem;
  line-height: 1.45;
}

.preview-content {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  background: white;
  max-height: 720px;
  overflow: auto;
}

.preview-content[hidden] {
  display: none !important;
}

.preview-content .minuta-header {
  margin-bottom: 1em;
}

.preview-content .minuta-header-table {
  width: 100%;
  border: none;
  border-collapse: collapse;
  margin-bottom: 0.4em;
}

.preview-content .minuta-header-table td {
  border: none;
  padding: 0;
  vertical-align: top;
}

.preview-content .minuta-header-text {
  width: 70%;
}

.preview-content .minuta-header-logo {
  width: 30%;
  text-align: right;
}

.preview-content .minuta-header h1 {
  margin: 0.2em 0 0.6em;
  color: #1e3a5f;
}

.preview-content .minuta-logo {
  width: 150px;
  max-height: 70px;
  object-fit: contain;
}

.preview-content .minuta-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #718096;
  font-size: 0.78rem;
}

.preview-content h2 {
  color: #2c5282;
  font-size: 1rem;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 4px;
  margin-top: 1.4em;
}

.preview-content .info-table {
  width: 100%;
  border-collapse: collapse;
}

.preview-content .info-table th,
.preview-content .info-table td {
  border: 1px solid #e2e8f0;
  padding: 8px 10px;
  text-align: left;
}

.preview-content .actions-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.6em 0 1em;
}

.preview-content .actions-table th,
.preview-content .actions-table td {
  border: 1px solid #e2e8f0;
  padding: 8px 10px;
  text-align: left;
}

.preview-content .actions-table th {
  background: #f8fafc;
  color: #2c5282;
}

.preview-content ul {
  margin: 0.4em 0 0.8em 1.2em;
}

.alert {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
}

.alert.error {
  background: var(--danger-bg);
  color: var(--danger-text);
  border: 1px solid #fecaca;
}

.alert.warning {
  background: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid #fde68a;
}

.alert.success {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.88);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  z-index: 10;
}

.loading-overlay[hidden] {
  display: none !important;
}

.loading-overlay:not([hidden]) {
  display: flex;
}

.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid #dbeafe;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 12px;
}

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

.app-footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.app-footer a {
  color: var(--primary);
  text-decoration: none;
}

.app-footer a:hover {
  text-decoration: underline;
}

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  text-align: center;
}

.login-logo {
  margin: 0 auto 20px;
  display: block;
}

.login-form {
  margin-top: 24px;
  text-align: left;
}

.login-form .field {
  margin-bottom: 16px;
}

.login-form label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
}

.login-form input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}

.login-form .btn {
  width: 100%;
  margin-top: 8px;
}

@media (max-width: 960px) {
  .app-header {
    flex-direction: column-reverse;
    align-items: flex-end;
  }

  .app-header-text {
    width: 100%;
  }

  .company-logo {
    width: 120px;
    margin-left: 0;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .preview-header {
    flex-direction: column;
    align-items: flex-start;
  }
}