/* ═══════════════════════════════════════════════════════════
   HERITAGE ARCHIVE — Design System
   Palette: Parchment canvas, Forest Green, Aged Bronze
═══════════════════════════════════════════════════════════ */

:root {
  --surface:              #fff8f3;
  --surface-dim:          #f6d69c;
  --surface-container:    #ffebcd;
  --surface-container-low:#fff2e0;
  --surface-container-high:#ffe5b9;
  --surface-container-highest:#ffdea5;
  --on-surface:           #261900;
  --on-surface-variant:   #424843;
  --outline:              #727973;
  --outline-variant:      #c2c8c1;
  --primary:              #1a3626;
  --on-primary:           #ffffff;
  --primary-container:    #1a3626;
  --secondary:            #8c6a3b;
  --on-secondary:         #ffffff;
  --secondary-container:  #ffd39b;
  --tertiary:             #d9c5b2;
  --background:           #ffdea4;
  --error:                #ba1a1a;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Merriweather', Georgia, serif;

  --radius-sm: 2px;
  --radius:    4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  --panel-w: 360px;
  --nav-h:   60px;
  --toolbar-h: 52px;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-body);
  color: var(--on-surface);
  background: var(--background);
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-container-low); }
::-webkit-scrollbar-thumb { background: var(--secondary); border-radius: 3px; }

/* ════════════════════════ NAVBAR ════════════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 2rem;
  padding: 0 2.5rem;
  background: var(--primary);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700;
  color: #aeceb7;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.nav-links {
  display: flex; gap: 0.25rem; list-style: none;
}
.nav-link {
  font-family: var(--font-body); font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none; padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover  { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active { color: #aeceb7; font-weight: 700; border-bottom: 2px solid #aeceb7; }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; }
.search-wrap {
  position: relative; display: flex; align-items: center;
}
.search-icon {
  position: absolute; left: 0.6rem;
  width: 15px; height: 15px;
  color: rgba(255,255,255,0.4); pointer-events: none;
}
.search-input {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff; border-radius: var(--radius-full);
  padding: 0.35rem 0.9rem 0.35rem 2rem;
  font-family: var(--font-body); font-size: 0.8rem;
  width: 200px; transition: width 0.3s, background 0.2s;
  outline: none;
}
.search-input::placeholder { color: rgba(255,255,255,0.35); }
.search-input:focus { width: 260px; background: rgba(255,255,255,0.14); border-color: #aeceb7; }

/* ════════════════════════ TOOLBAR ════════════════════════ */
.toolbar {
  position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 90;
  height: var(--toolbar-h);
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0 1.5rem;
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--secondary);
}
.toolbar-divider {
  width: 1px; height: 24px;
  background: var(--secondary); opacity: 0.35;
  margin: 0 0.25rem;
}
.zoom-label {
  font-family: var(--font-body); font-size: 0.75rem;
  color: var(--secondary); letter-spacing: 0.05em;
  min-width: 40px;
}

/* ════════════════════════ BUTTONS ════════════════════════ */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: var(--radius-lg);
  border: none; background: transparent; cursor: pointer;
  color: var(--on-surface); transition: background 0.18s, color 0.18s;
}
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn:hover { background: var(--surface-container); }

.tool-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 1rem; border-radius: var(--radius-lg);
  font-family: var(--font-display); font-size: 0.82rem; font-weight: 600;
  cursor: pointer; transition: all 0.18s; border: none; white-space: nowrap;
}
.tool-btn svg { width: 15px; height: 15px; }

.primary-btn {
  background: var(--primary); color: var(--on-primary);
  border: 1px solid transparent;
}
.primary-btn:hover { background: #2a4e38; }

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

.danger-btn { color: var(--error) !important; }
.danger-btn:hover { background: #ffdad6 !important; }
.danger-outline-btn {
  background: transparent; color: var(--error);
  border: 1px solid var(--error);
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 1rem; border-radius: var(--radius-lg);
  font-family: var(--font-display); font-size: 0.82rem; font-weight: 600;
  cursor: pointer; transition: all 0.18s;
}
.danger-outline-btn:hover { background: var(--error); color: #fff; }

/* ════════════════════════ LAYOUT ════════════════════════ */
.main-layout {
  position: fixed;
  top: calc(var(--nav-h) + var(--toolbar-h));
  left: 0; right: 0; bottom: 0;
  display: flex; overflow: hidden;
}

/* ════════════════════════ CANVAS ════════════════════════ */
.canvas-wrapper {
  flex: 1; overflow: auto; position: relative;
  background: var(--background);
  background-image:
    radial-gradient(circle, rgba(140,106,59,0.12) 1px, transparent 1px);
  background-size: 28px 28px;
  cursor: grab;
  transition: margin-right 0.35s ease;
}
.canvas-wrapper.panel-open { margin-right: var(--panel-w); }
.canvas-wrapper:active { cursor: grabbing; }

.canvas-inner {
  position: relative;
  width: 3200px; height: 2400px;
  transform-origin: top left;
}

.connections-svg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 1;
  overflow: visible;
}

.nodes-layer {
  position: absolute; inset: 0;
  z-index: 2;
}

/* ════════════════════════ ANCESTOR NODE ════════════════════════ */
.person-node {
  position: absolute;
  width: 150px;
  background: var(--primary);
  border: 1px solid rgba(174,206,183,0.25);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s;
  user-select: none;
}
.person-node:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 3px rgba(26,54,38,0.15), 0 6px 20px rgba(26,54,38,0.2);
}
.person-node.selected {
  box-shadow: 0 0 0 2px var(--secondary), 0 0 16px rgba(26,54,38,0.3);
}

.node-avatar-wrap {
  position: absolute; top: -22px; left: 50%;
  transform: translateX(-50%);
  width: 44px; height: 44px;
  border-radius: var(--radius);
  border: 2px solid var(--secondary);
  background: var(--surface-container-highest);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}
.node-avatar-wrap img {
  width: 100%; height: 100%; object-fit: cover;
}
.node-avatar-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--secondary); background: var(--surface-container-highest);
}
.node-avatar-placeholder svg { width: 22px; height: 22px; }

.node-body { padding: 28px 10px 10px; text-align: center; }
.node-name {
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 600;
  color: #aeceb7; line-height: 1.3;
}
.node-dates {
  font-family: var(--font-body); font-size: 0.62rem;
  color: rgba(174,206,183,0.6); margin-top: 2px;
}

.node-actions {
  display: none; position: absolute;
  top: -10px; right: -10px;
  flex-direction: column; gap: 4px; z-index: 10;
}
.person-node:hover .node-actions { display: flex; }
.node-action-btn {
  width: 26px; height: 26px;
  border-radius: var(--radius-full);
  border: 1px solid var(--secondary);
  background: var(--surface-container-low);
  color: var(--secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.15s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.node-action-btn:hover { background: var(--secondary); color: #fff; }
.node-action-btn.del:hover { background: var(--error); border-color: var(--error); color: #fff; }
.node-action-btn svg { width: 12px; height: 12px; }

/* ════════════════════════ SVG CONNECTIONS ════════════════════════ */
.conn-line { stroke: var(--secondary); stroke-width: 1.5; fill: none; opacity: 0.6; }
.conn-line-spouse { stroke: var(--secondary); stroke-width: 1.5; fill: none; stroke-dasharray: 5 3; opacity: 0.5; }

/* ════════════════════════ DETAIL PANEL ════════════════════════ */
.detail-panel {
  position: fixed;
  top: calc(var(--nav-h) + var(--toolbar-h));
  right: 0; bottom: 0;
  width: var(--panel-w);
  background: var(--surface-container-low);
  border-left: 1px solid var(--secondary);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  z-index: 80;
  overflow: hidden;
}
.detail-panel.open { transform: translateX(0); }

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--secondary);
  background: var(--surface-container);
  flex-shrink: 0;
}
.panel-actions { display: flex; gap: 0.25rem; }
.panel-close { color: var(--on-surface-variant); }

.panel-body {
  flex: 1; overflow-y: auto;
  padding: 0 1.5rem 2rem;
}

.panel-photo-wrap {
  display: flex; justify-content: center;
  padding: 1.5rem 0 0.75rem;
}
.panel-photo-container {
  width: 90px; height: 110px;
  border-radius: var(--radius);
  border: 2px solid var(--secondary);
  overflow: hidden;
  background: var(--surface-container-highest);
  box-shadow: 2px 2px 0 var(--secondary);
}
.panel-photo { width: 100%; height: 100%; object-fit: cover; display: none; }
.panel-photo-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--secondary);
}
.panel-photo-placeholder svg { width: 36px; height: 36px; }

.panel-name {
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 600;
  color: var(--on-surface);
  text-align: center; line-height: 1.3;
}
.panel-dates {
  font-family: var(--font-body); font-size: 0.8rem;
  color: var(--secondary); text-align: center;
  margin-top: 0.2rem; margin-bottom: 1rem;
}

.panel-section { margin-top: 1.25rem; }
.panel-section-title {
  font-family: var(--font-body); font-size: 0.7rem;
  font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--secondary);
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--tertiary);
  margin-bottom: 0.75rem;
}
.panel-bio {
  font-family: var(--font-body); font-size: 0.85rem;
  line-height: 1.7; color: var(--on-surface-variant);
  font-style: italic;
}

.vital-list { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.vital-item { display: flex; align-items: flex-start; gap: 0.65rem; }
.vital-icon {
  width: 28px; height: 28px; flex-shrink: 0;
  background: var(--secondary-container);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--secondary);
}
.vital-icon svg { width: 14px; height: 14px; }
.vital-label {
  display: block;
  font-family: var(--font-body); font-size: 0.7rem;
  font-weight: 700; color: var(--on-surface);
  letter-spacing: 0.04em;
}
.vital-value {
  font-family: var(--font-body); font-size: 0.8rem;
  color: var(--on-surface-variant);
}

.connections-list { display: flex; flex-direction: column; gap: 0.5rem; }
.conn-chip {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  font-family: var(--font-body); font-size: 0.78rem;
  color: var(--on-surface-variant);
}
.conn-chip-type {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--secondary); min-width: 45px;
}
.conn-chip-name { color: var(--on-surface); }

.media-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.media-thumb {
  aspect-ratio: 1;
  border-radius: var(--radius);
  border: 1px solid var(--secondary);
  overflow: hidden; background: var(--surface-container-highest);
}
.media-thumb img { width: 100%; height: 100%; object-fit: cover; }
.media-placeholder {
  font-family: var(--font-body); font-size: 0.78rem;
  color: var(--outline); font-style: italic;
  grid-column: 1 / -1;
}

/* ════════════════════════ MODAL ════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(38,25,0,0.55);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--surface-container-low);
  border: 1px solid var(--secondary);
  border-radius: var(--radius-lg);
  box-shadow: 2px 2px 0 var(--secondary), 0 20px 60px rgba(38,25,0,0.35);
  width: 540px; max-width: calc(100vw - 2rem);
  max-height: calc(100vh - 4rem);
  display: flex; flex-direction: column;
  transform: translateY(16px); transition: transform 0.25s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-sm { width: 380px; }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--outline-variant);
  flex-shrink: 0;
}
.modal-title {
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 600;
  color: var(--on-surface);
}
.modal-body {
  flex: 1; overflow-y: auto;
  padding: 1.25rem;
  display: flex; flex-direction: column; gap: 0.9rem;
}
.modal-footer {
  display: flex; align-items: center; justify-content: flex-end; gap: 0.5rem;
  padding: 0.9rem 1.25rem;
  border-top: 1px solid var(--outline-variant);
  flex-shrink: 0;
}

/* ─── Photo Upload ─── */
.photo-upload-area {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.75rem;
  background: var(--surface-container);
  border: 1px dashed var(--secondary);
  border-radius: var(--radius-md);
}
.photo-preview-wrap {
  width: 68px; height: 80px; flex-shrink: 0;
  border-radius: var(--radius);
  border: 2px solid var(--secondary);
  overflow: hidden; background: var(--surface-container-highest);
  display: flex; align-items: center; justify-content: center;
}
.photo-preview-img { width: 100%; height: 100%; object-fit: cover; }
.photo-preview-placeholder {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px; color: var(--secondary); text-align: center;
  font-family: var(--font-body); font-size: 0.6rem;
}
.photo-preview-placeholder svg { width: 24px; height: 24px; }

/* ─── Form Fields ─── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-group { display: flex; flex-direction: column; gap: 0.25rem; }
.form-label {
  font-family: var(--font-body); font-size: 0.68rem;
  font-weight: 700; letter-spacing: 0.07em;
  text-transform: uppercase; color: var(--secondary);
}
.form-input {
  background: transparent;
  border: none; border-bottom: 1px solid var(--secondary);
  padding: 0.45rem 0;
  font-family: var(--font-body); font-size: 0.875rem;
  color: var(--on-surface);
  outline: none; transition: border-color 0.2s;
  border-radius: 0;
  width: 100%;
}
.form-input:focus { border-bottom: 2px solid var(--primary); }
.form-input::placeholder { color: var(--outline); font-style: italic; }
select.form-input { cursor: pointer; }
.form-textarea { resize: vertical; min-height: 72px; }

.delete-warning {
  font-family: var(--font-body); font-size: 0.9rem;
  line-height: 1.65; color: var(--on-surface-variant);
}

/* ════════════════════════ TOAST ════════════════════════ */
.toast {
  position: fixed; bottom: 1.5rem; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--primary); color: var(--on-primary);
  font-family: var(--font-body); font-size: 0.82rem;
  padding: 0.55rem 1.25rem; border-radius: var(--radius-full);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  opacity: 0; transition: all 0.3s; z-index: 300; pointer-events: none;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ════════════════════════ EMPTY STATE ════════════════════════ */
.canvas-empty {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center; pointer-events: none;
}
.canvas-empty svg { width: 64px; height: 64px; color: var(--secondary); opacity: 0.35; }
.canvas-empty p {
  font-family: var(--font-display); font-size: 1.1rem;
  color: var(--secondary); opacity: 0.45; margin-top: 0.75rem;
  font-style: italic;
}

/* ════════════════════════ RESPONSIVE ════════════════════════ */
@media (max-width: 768px) {
  :root { --panel-w: 100vw; }
  .nav-links { display: none; }
  .search-input { width: 140px; }
  .search-input:focus { width: 180px; }
  .form-row { grid-template-columns: 1fr; }
  .detail-panel { top: calc(var(--nav-h) + var(--toolbar-h)); }
  .toolbar { gap: 0.25rem; padding: 0 0.75rem; }
}