@import url("https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,500;0,600;1,500&family=Work+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --white: #fbfcfc;
  --mist-green: #e7f1ec;
  --ink: #3c4a52;
  --ink-soft: #7c8a90;
  --blue: #2e6c9e;
  --blue-dark: #234f76;
  --green: #109e61;
  --green-dark: #245842;
  --line: #c7d2d6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--white);
  color: var(--ink);
  font-family:
    "Work Sans",
    -apple-system,
    sans-serif;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  padding: 16px 24px 12px;
  border-bottom: 2px solid var(--mist-green);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
}

h1 {
  font-family: "Lora", serif;
  font-weight: 600;
  font-size: 26px;
  margin: 0;
  color: var(--green-dark);
}
h1 .sub {
  font-family: "Work Sans", sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-top: 3px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.brand h1 {
  margin: 0;
  color: #111827;
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand .sub {
  display: block;
  margin-top: 0.2rem;
  color: #374151;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: normal;
  opacity: 1;
}

.header-icon {
  width: 40px;
  height: 40px;
  margin-right: 10px;
  flex: 0 0 auto;
  vertical-align: middle;
}

.controls {
  display: grid;
  grid-template-columns: auto auto auto minmax(12rem, 1fr);
  gap: 0.45rem;
  align-items: center;
  min-width: min(560px, 100%);
}

#root-select {
  grid-column: 1 / -1;
}

#expand-all,
#collapse-all,
#load-file-btn {
  white-space: nowrap;
}

#load-file-btn {
  min-width: 2.75rem;
}

#search {
  min-width: 0;
  width: 100%;
}

#file-input {
  display: none;
}

.controls input[type="text"],
.controls select {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 7px 10px;
  border-radius: 4px;
  outline: none;
}
.controls input[type="text"]:focus,
.controls select:focus {
  border-color: var(--blue);
}

button {
  font-family: "Work Sans", sans-serif;
  font-weight: 500;
  font-size: 12.5px;
  background: var(--green);
  color: var(--white);
  border: none;
  padding: 8px 14px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s ease;
}
button:hover {
  background: var(--green-dark);
}
button.ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
button.ghost:hover {
  background: var(--mist-green);
  color: var(--ink);
  border-color: var(--green);
}
.controls input[type="text"],
.controls select,
.controls button {
  height: 36px;
  min-height: 36px;
  line-height: 1;
  box-sizing: border-box;
}

.controls input[type="text"],
.controls select {
  padding-top: 0;
  padding-bottom: 0;
}

.controls button {
  padding-top: 0;
  padding-bottom: 0;
}

#main {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-height: 70vh;
}

#tree-svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 70vh;
  cursor: grab;
  background: var(--white);
}
#tree-svg:active {
  cursor: grabbing;
}

.link {
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.5px;
  opacity: 0.55;
}

.node circle {
  stroke-width: 2px;
  cursor: pointer;
  fill: var(--white);
  stroke: var(--blue);
}
.node.female circle {
  stroke: var(--green);
}
.node.root circle {
  fill: var(--mist-green);
  stroke: var(--green-dark);
  stroke-width: 2.5px;
}
.node.root .ring {
  fill: none;
  stroke: var(--green-dark);
  stroke-width: 1px;
  opacity: 0.5;
  pointer-events: none;
}

.node text.name {
  font-family: "Lora", serif;
  font-weight: 600;
  font-size: 14.5px;
  fill: var(--ink);
}
.node text.dates {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  fill: var(--ink-soft);
}
.node.root text.name {
  fill: var(--green-dark);
}

.node.dim {
  opacity: 0.25;
}
.node.match circle {
  stroke: var(--blue);
  stroke-width: 3px;
}
.node.match text.name {
  fill: var(--blue-dark);
}

#panel {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 260px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(60, 74, 82, 0.14);
  padding: 16px 18px;
  display: none;
}
#panel.open {
  display: block;
}
#panel h2 {
  font-family: "Lora", serif;
  font-weight: 600;
  font-size: 19px;
  margin: 0 0 4px;
  color: var(--blue-dark);
}
#panel .row {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  color: var(--ink-soft);
  margin-top: 6px;
  line-height: 1.5;
}
#panel .row b {
  color: var(--ink);
  font-weight: 600;
}
#panel .close {
  position: absolute;
  top: 8px;
  right: 10px;
  background: none;
  color: var(--ink-soft);
  padding: 2px 6px;
  font-size: 14px;
}
#panel .close:hover {
  background: none;
  color: var(--blue);
}

#empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  text-align: center;
  padding: 20px;
}
#empty-state.hidden {
  display: none;
}
#empty-state p {
  max-width: 420px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

.hint {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  color: var(--ink-soft);
  padding: 6px 24px 10px;
  border-top: 1px solid var(--mist-green);
}

.site-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
  flex: 0 0 auto;
}

.site-footer {
  padding: 0.75rem 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: #555;
  border-top: 1px solid #ddd;
  background: #fafafa;
}

.site-footer a {
  color: #236b2e;
  text-decoration: none;
  font-weight: 600;
}

.site-footer a:hover,
.site-footer a:focus {
  text-decoration: underline;
}

@media (max-width: 700px) {
  .site-logo {
    width: 44px;
    height: 44px;
  }

  .brand {
    align-items: flex-start;
  }

  header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  header > div:first-child {
    display: flex;
    align-items: center;
  }

  header h1 {
    font-size: 1.1rem;
    line-height: 1.2;
  }

  header h1 .sub {
    display: block;
    font-size: 0.75rem;
    margin-top: 0.2rem;
  }

  .controls {
    display: grid;
    grid-template-columns: auto auto auto minmax(0, 1fr);
    gap: 0.4rem;
    width: 100%;
    min-width: 0;
  }

  #root-select {
    grid-column: 1 / -1;
  }

  #search {
    grid-column: auto;
    min-width: 0;
    width: 100%;
  }

  #expand-all,
  #collapse-all,
  #load-file-btn {
    width: auto;
    min-height: 42px;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  .controls input[type="text"],
  .controls select,
  .controls button {
    height: 42px;
    min-height: 42px;
    box-sizing: border-box;
  }

  #main {
    height: calc(100vh - 210px);
  }

  #tree-svg {
    width: 100%;
    height: 100%;
    touch-action: none;
  }

  #panel {
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    width: auto;
    max-height: 45vh;
    overflow-y: auto;
    border-radius: 1rem 1rem 0 0;
  }

  .hint {
    font-size: 0.75rem;
    padding: 0.35rem 0.5rem;
  }

  .site-footer {
    font-size: 0.75rem;
    padding: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .node,
  .link {
    transition: none !important;
  }
}