/* =========================================================================
   Визуализация родового дерева
   ========================================================================= */

.tree-page { position: relative; height: calc(100vh - var(--header-h)); height: calc(100dvh - var(--header-h)); overflow: hidden; }

/* Полноэкранный режим дерева: контент занимает вьюпорт, подвал скрыт. */
#main.is-full { flex: 1 1 auto; }
#main.is-full ~ .site-footer { display: none; }

.tree-stage {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 1px 1px, var(--c-border-strong) 1px, transparent 0);
  background-size: 26px 26px;
  background-color: var(--c-bg);
  cursor: grab;
  touch-action: none;
  overflow: hidden;
}
.tree-stage.is-panning { cursor: grabbing; }
.tree-stage svg { width: 100%; height: 100%; display: block; }

/* Группа, которую двигаем/масштабируем */
#tree-viewport { transition: transform var(--dur-2) var(--ease-soft); }
.tree-stage.is-panning #tree-viewport { transition: none; }

/* Линии связей */
.tree-link {
  fill: none;
  stroke: var(--c-border-strong);
  stroke-width: 2;
  stroke-linecap: round;
  transition: stroke var(--dur-3) var(--ease-soft), stroke-width var(--dur-3) var(--ease-soft);
}
.tree-link--spouse { stroke: var(--c-female); stroke-dasharray: 1 7; stroke-width: 2.5; opacity: 0.7; }
.tree-link.is-highlight { stroke: var(--c-primary); stroke-width: 3.5; }
.tree-link.is-dim { opacity: 0.25; }
.tree-link--draw { stroke-dasharray: var(--len, 800); animation: drawLine var(--dur-6) var(--ease-out-expo) both; }

/* Узел персоны */
.tree-node { cursor: pointer; animation: nodeGrow var(--dur-4) var(--ease-soft) both; }
.tree-node__card {
  fill: var(--c-surface);
  stroke: var(--c-border-strong);
  stroke-width: 1.5;
  transition: stroke var(--dur-2) var(--ease-soft), filter var(--dur-2) var(--ease-soft);
  filter: drop-shadow(0 6px 16px rgba(27,42,34,0.16));
}
.tree-node:hover .tree-node__card { stroke: var(--c-primary-300); filter: drop-shadow(0 10px 22px rgba(46,125,79,0.22)); }
.tree-node.is-root .tree-node__card { stroke: var(--c-primary); stroke-width: 2.5; filter: drop-shadow(0 12px 26px rgba(46,125,79,0.30)); }
.tree-node.is-highlight .tree-node__card { stroke: var(--c-primary); stroke-width: 2.5; }
.tree-node.is-dim { opacity: 0.4; }

.tree-node__accent { transition: fill var(--dur-2) var(--ease-soft); }
.tree-node--male .tree-node__accent { fill: var(--c-male); }
.tree-node--female .tree-node__accent { fill: var(--c-female); }
.tree-node--unknown .tree-node__accent { fill: var(--c-unknown); }

.tree-node__avatar-bg { stroke: var(--c-surface); stroke-width: 2; }
.tree-node__name { font-family: var(--font-display); font-size: 14px; font-weight: 500; fill: var(--c-text); }
.tree-node__years { font-family: var(--font-sans); font-size: 11px; fill: var(--c-text-muted); }
.tree-node__initials { font-family: var(--font-display); font-size: 16px; font-weight: 500; fill: #fff; text-anchor: middle; dominant-baseline: central; }
.tree-node--deceased .tree-node__avatar-img { filter: grayscale(0.4); }
.tree-node__deceased-mark { font-size: 11px; fill: var(--c-deceased); }

/* Кнопки сворачивания ветвей на узле */
.tree-toggle { cursor: pointer; }
.tree-toggle circle { fill: var(--c-surface); stroke: var(--c-border-strong); stroke-width: 1.5; transition: all var(--dur-2) var(--ease-soft); }
.tree-toggle:hover circle { fill: var(--c-primary); stroke: var(--c-primary); }
.tree-toggle text { fill: var(--c-text-soft); font-size: 14px; font-weight: 700; text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.tree-toggle:hover text { fill: #fff; }
.tree-toggle__count { fill: var(--c-text-faint); font-size: 10px; }

/* Панель управления (плавающая) */
.tree-controls {
  position: absolute;
  z-index: var(--z-tree-controls);
  display: flex; gap: 8px;
}
.tree-controls--zoom { right: 18px; bottom: 18px; flex-direction: column; }
.tree-controls--top { left: 18px; top: 18px; flex-direction: column; align-items: flex-start; gap: 12px; max-width: min(320px, calc(100% - 36px)); }
.tree-controls--share { right: 18px; top: 18px; }

.tree-toolbar {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  padding: 8px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
}
.tree-toolbar .icon-btn { background: transparent; border-color: transparent; width: 38px; height: 38px; }
.tree-toolbar .icon-btn:hover { background: var(--c-surface); }
.tree-zoom-level { min-width: 48px; text-align: center; font-size: var(--fs-sm); font-weight: 600; color: var(--c-text-soft); font-variant-numeric: tabular-nums; }

.tree-rootcard {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px 10px 10px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-full);
  box-shadow: var(--shadow-lg);
}
.tree-rootcard__info { line-height: 1.2; }
.tree-rootcard__label { font-size: var(--fs-xs); color: var(--c-text-muted); }
.tree-rootcard__name { font-weight: 600; font-family: var(--font-display); }

.tree-panel {
  width: 100%;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--sp-4);
  display: grid; gap: var(--sp-4);
  animation: fadeInDown var(--dur-3) var(--ease-out-expo) both;
}
.tree-panel__row { display: grid; gap: 8px; }
.tree-panel__row > label { font-size: var(--fs-xs); font-weight: 700; letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--c-text-faint); }
.tree-panel .segmented { flex-wrap: wrap; }

/* Слайдер глубины */
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: var(--r-full); background: var(--c-surface-3); outline: none; }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--c-primary); cursor: pointer; box-shadow: var(--shadow-sm); border: 3px solid #fff; transition: transform var(--dur-2) var(--ease-spring); }
.range::-webkit-slider-thumb:hover { transform: scale(1.15); }
.range::-moz-range-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--c-primary); cursor: pointer; border: 3px solid #fff; }
.range-row { display: flex; align-items: center; gap: 12px; }
.range-row output { min-width: 22px; text-align: center; font-weight: 700; color: var(--c-primary-700); font-variant-numeric: tabular-nums; }

/* Легенда */
.tree-legend { display: flex; flex-wrap: wrap; gap: 10px 16px; font-size: var(--fs-xs); color: var(--c-text-muted); }
.tree-legend span { display: inline-flex; align-items: center; gap: 6px; }
.tree-legend i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }

/* Мини-карточка при наведении (tooltip узла) */
.node-pop {
  position: fixed; z-index: var(--z-tooltip);
  width: 230px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-xl);
  padding: 12px;
  pointer-events: none;
  opacity: 0; transform: translateY(6px) scale(0.97);
  transition: opacity var(--dur-2) var(--ease-soft), transform var(--dur-2) var(--ease-soft);
}
.node-pop.is-shown { opacity: 1; transform: none; }
.node-pop__rel { font-size: var(--fs-xs); color: var(--c-primary-700); font-weight: 600; }

/* Подсказка управления */
.tree-hint {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  z-index: var(--z-tree-controls);
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
  padding: 8px 16px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-full);
  box-shadow: var(--shadow-md);
  font-size: var(--fs-xs); color: var(--c-text-muted);
  animation: fadeInUp var(--dur-5) var(--ease-out-expo) both;
  transition: opacity var(--dur-3) var(--ease-soft);
}
.tree-hint kbd { font-family: var(--font-mono); background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: 4px; padding: 1px 5px; font-size: 10px; }
.tree-hint.is-hidden { opacity: 0; pointer-events: none; }

@media (max-width: 720px) {
  .tree-controls--top { max-width: calc(100% - 36px); }
  .tree-hint { display: none; }
  .tree-rootcard__name { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}