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

:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --border: #d1d1d6;
  --primary: #007aff;
  --primary-hover: #0056cc;
  --danger: #ff3b30;
  --text: #1c1c1e;
  --text-muted: #6e6e73;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

header h1 { font-size: 17px; font-weight: 600; letter-spacing: -0.3px; }
header .subtitle { font-size: 12px; color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #c0c0c8; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

main { max-width: 860px; margin: 0 auto; padding: 24px 16px; }

/* Search + toolbar */
.toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
}
.search-input {
  flex: 1;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--surface);
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--primary); }

/* Contact list */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.contact-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 1px solid transparent;
}
.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  border-color: var(--primary);
}
.contact-card .name { font-size: 16px; font-weight: 600; margin-bottom: 3px; }
.contact-card .role { font-size: 13px; color: var(--text-muted); margin-bottom: 8px; }
.contact-card .meta { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.empty-state .icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h2 { font-size: 20px; margin-bottom: 8px; color: var(--text); }
.empty-state p { font-size: 14px; margin-bottom: 24px; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-backdrop.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--surface);
  border-radius: 16px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
  transform: translateY(20px);
  transition: transform 0.2s;
}
.modal-backdrop.open .modal { transform: translateY(0); }

.modal-header {
  padding: 20px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h2 { font-size: 18px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  padding: 4px;
}
.modal-body { padding: 20px 24px 24px; }

/* Drop zones */
.dropzones { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  position: relative;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.dropzone:hover, .dropzone.drag-over { border-color: var(--primary); background: #f0f6ff; }
.dropzone.has-image { border-style: solid; border-color: var(--primary); }
.dropzone label { font-size: 13px; font-weight: 600; margin-bottom: 6px; display: block; }
.dropzone .hint { font-size: 12px; color: var(--text-muted); }
.dropzone input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.dropzone .preview {
  width: 100%;
  max-height: 120px;
  object-fit: contain;
  border-radius: 6px;
  margin-top: 8px;
}
.dropzone .remove-img {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  font-size: 14px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.dropzone.has-image .remove-img { display: flex; }

/* Form fields */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input, .form-group textarea {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
  transition: border-color 0.15s;
  outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { resize: vertical; min-height: 80px; }

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Step indicator */
.steps { display: flex; gap: 8px; margin-bottom: 20px; }
.step {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: var(--border);
  transition: background 0.2s;
}
.step.active { background: var(--primary); }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Detail view */
.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 12px;
}
.detail-name { font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.detail-role { font-size: 16px; color: var(--text-muted); }
.detail-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.detail-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.detail-card h3 { font-size: 13px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.detail-row { display: flex; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--bg); }
.detail-row:last-child { border-bottom: none; }
.detail-row .key { font-size: 13px; color: var(--text-muted); min-width: 110px; }
.detail-row .val { font-size: 14px; word-break: break-word; }
.detail-row .val a { color: var(--primary); text-decoration: none; }
.detail-row .val a:hover { text-decoration: underline; }

.card-images { display: flex; gap: 12px; margin-top: 16px; }
.card-images img { max-height: 120px; border-radius: 8px; border: 1px solid var(--border); object-fit: contain; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  margin-bottom: 20px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.back-link:hover { text-decoration: underline; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1c1c1e;
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 500;
  transform: translateY(80px);
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { background: var(--danger); }

@media (max-width: 500px) {
  .dropzones { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}