:root {
  --bg: #f3f7fe;
  --surface: #ffffff;
  --surface-soft: #eef4ff;
  --surface-tint: rgba(255, 255, 255, 0.72);
  --border: rgba(17, 37, 77, 0.12);
  --text: #13213f;
  --muted: #64748b;
  --primary: #2f67c8;
  --primary-dark: #163b7a;
  --primary-soft: rgba(47, 103, 200, 0.12);
  --shadow: 0 18px 40px rgba(16, 37, 77, 0.08);
  --shadow-soft: 0 10px 24px rgba(16, 37, 77, 0.07);
  --grid-line: rgba(47, 103, 200, 0.08);
  --connector: #8eb2f3;
  --connector-soft: rgba(142, 178, 243, 0.22);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(47, 103, 200, 0.12), transparent 28%),
    linear-gradient(180deg, #f7faff 0%, var(--bg) 100%);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 80px;
}

.app-header,
.panel-card,
.canvas-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(17, 37, 77, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border-radius: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--primary-dark);
  text-decoration: none;
}

.brand-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.brand span {
  display: grid;
  gap: 3px;
}

.brand strong {
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.brand small,
.hero-copy,
.panel-note,
.panel-card li,
.member-meta,
.field-hint {
  color: var(--muted);
}

.hero-copy {
  max-width: 560px;
  margin: 12px 0 0;
}

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

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 16px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--primary-dark);
  cursor: pointer;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.action-button:hover,
.icon-button:hover,
.member-card:hover,
.member-list-button:hover {
  transform: translateY(-1px);
}

.action-button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  border-color: transparent;
  box-shadow: 0 14px 26px rgba(47, 103, 200, 0.22);
}

.action-button-muted {
  background: #f8fafc;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.72fr) minmax(260px, 0.52fr);
  gap: 22px;
  margin-top: 22px;
}

.canvas-panel,
.panel-card {
  border-radius: 28px;
  padding: 24px;
}

.panel-head,
.roster-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.canvas-subtitle {
  max-width: 540px;
  margin-top: 10px;
  color: var(--muted);
}

.panel-kicker {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1,
h2 {
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

h2 {
  font-size: 1.3rem;
}

.tree-scroll {
  overflow: auto;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(47, 103, 200, 0.06), rgba(255, 255, 255, 0.88)),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(0deg, var(--grid-line) 1px, transparent 1px),
    #fff;
  background-size: auto, 28px 28px, 28px 28px, auto;
  border: 1px solid rgba(17, 37, 77, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.tree-stage {
  position: relative;
  min-width: 720px;
  min-height: 620px;
  padding: 72px 32px 60px;
}

.tree-level {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 28px;
  min-height: 140px;
  z-index: 1;
}

.tree-level + .tree-level {
  margin-top: 44px;
}

.tree-level-middle {
  align-items: center;
}

.tree-level-middle {
  min-height: 190px;
}

.tree-group {
  display: flex;
  align-items: center;
  gap: 18px;
}

.tree-empty-state {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  width: min(560px, calc(100% - 48px));
  padding: 28px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(243, 247, 254, 0.96));
  border: 1px solid rgba(47, 103, 200, 0.12);
  box-shadow: 0 24px 40px rgba(16, 37, 77, 0.12);
  transform: translate(-50%, -50%);
  text-align: center;
  backdrop-filter: blur(10px);
}

.tree-empty-kicker {
  margin-bottom: 8px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.tree-empty-state h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.tree-empty-state p {
  margin-top: 12px;
  color: var(--muted);
}

.tree-empty-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.tree-empty-actions .action-button {
  min-width: 112px;
}

.middle-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  width: 100%;
  gap: 28px;
}

.middle-slot {
  display: flex;
  min-height: 170px;
}

.middle-slot-left {
  justify-content: flex-end;
}

.middle-slot-center {
  justify-content: center;
}

.middle-slot-right {
  justify-content: flex-start;
}

.member-card {
  position: relative;
  width: 188px;
  padding: 18px 16px 14px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 255, 0.96));
  border: 1px solid rgba(17, 37, 77, 0.08);
  box-shadow: 0 16px 32px rgba(16, 37, 77, 0.08);
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.member-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent 36%);
  pointer-events: none;
}

.member-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 24px 42px rgba(16, 37, 77, 0.16);
  border-color: rgba(47, 103, 200, 0.22);
}

.member-card:focus-visible {
  outline: 0;
  border-color: rgba(47, 103, 200, 0.36);
  box-shadow: 0 0 0 4px rgba(47, 103, 200, 0.12), 0 24px 42px rgba(16, 37, 77, 0.16);
}

.member-card.is-self {
  width: 208px;
  background: linear-gradient(180deg, rgba(47, 103, 200, 0.16), rgba(255, 255, 255, 0.98) 40%);
  border-color: rgba(47, 103, 200, 0.28);
  box-shadow: 0 26px 52px rgba(47, 103, 200, 0.16);
  transform: scale(1.04);
}

.member-card.is-self:hover {
  transform: translateY(-6px) scale(1.06);
}

.member-card.is-self::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 16px;
  border: 1px solid rgba(47, 103, 200, 0.22);
  pointer-events: none;
}

.member-card.is-spouse {
  background: linear-gradient(180deg, rgba(22, 59, 122, 0.08), #fff 42%);
}

.member-card.is-parent {
  background: linear-gradient(180deg, rgba(185, 122, 40, 0.08), #fff 42%);
}

.member-card.is-child {
  background: linear-gradient(180deg, rgba(41, 150, 111, 0.08), #fff 42%);
}

.member-card.is-sibling {
  background: linear-gradient(180deg, rgba(125, 92, 252, 0.08), #fff 42%);
}

.member-avatar {
  width: 68px;
  height: 68px;
  margin-bottom: 14px;
  border-radius: 999px;
  overflow: hidden;
  background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
  border: 3px solid #fff;
  box-shadow: 0 8px 18px rgba(47, 103, 200, 0.12);
}

.member-avatar img,
.member-list-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-avatar-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 1.35rem;
  font-weight: 900;
}

.member-name {
  margin-bottom: 4px;
  font-size: 1.02rem;
  font-weight: 800;
}

.member-role {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: capitalize;
}

.member-gender {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.member-card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.member-quick-action {
  min-height: 34px;
  padding: 7px 8px;
  border-radius: 12px;
  background: rgba(47, 103, 200, 0.08);
  border: 1px solid rgba(47, 103, 200, 0.12);
  color: var(--primary-dark);
  font-size: 0.74rem;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.member-quick-action:hover {
  background: rgba(47, 103, 200, 0.14);
  transform: translateY(-1px);
}

.control-panel {
  display: grid;
  gap: 16px;
  align-content: start;
}

.quick-guide {
  padding: 18px 20px;
  background: var(--surface-tint);
  box-shadow: 0 10px 24px rgba(16, 37, 77, 0.05);
}

.quick-guide-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.quick-guide-summary::-webkit-details-marker {
  display: none;
}

.quick-guide-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.quick-guide[open] .quick-guide-toggle::before {
  content: "Hide";
}

.quick-guide:not([open]) .quick-guide-toggle::before {
  content: "Show";
}

.quick-guide h2 {
  font-size: 1.08rem;
}

.quick-guide ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

.quick-guide li + li {
  margin-top: 10px;
}

.roster-count {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 0.83rem;
  font-weight: 800;
}

.roster-panel {
  background: rgba(255, 255, 255, 0.9);
}

.member-list {
  display: grid;
  gap: 10px;
}

.member-list-button {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 12px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(17, 37, 77, 0.08);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.member-list-button.is-active {
  border-color: rgba(47, 103, 200, 0.28);
  box-shadow: 0 10px 20px rgba(47, 103, 200, 0.12);
}

.member-list-avatar {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  overflow: hidden;
  background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
}

.member-list-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  text-align: left;
}

.member-meta {
  margin-top: 3px;
  font-size: 0.83rem;
  text-align: left;
  text-transform: capitalize;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(8, 15, 34, 0.42);
  backdrop-filter: blur(8px);
  z-index: 30;
}

.modal-card {
  width: min(100%, 470px);
  padding: 24px;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 30px 60px rgba(8, 15, 34, 0.2);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.icon-button {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--border);
  color: var(--primary-dark);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.member-form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.field input,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: rgba(47, 103, 200, 0.36);
  box-shadow: 0 0 0 4px rgba(47, 103, 200, 0.1);
}

.tree-connectors {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.tree-connectors line,
.tree-connectors path {
  stroke: var(--connector);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 10px var(--connector-soft));
}

.mobile-add-button {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 25;
  display: none;
  min-height: 58px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  box-shadow: 0 16px 32px rgba(47, 103, 200, 0.28);
  font-size: 1rem;
  font-weight: 900;
  cursor: pointer;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(18px);
  min-width: 220px;
  max-width: calc(100% - 32px);
  padding: 13px 16px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.95);
  color: #fff;
  text-align: center;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 40;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.seo-content {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.seo-block {
  padding: 26px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(17, 37, 77, 0.08);
  box-shadow: var(--shadow-soft);
}

.seo-block p + p {
  margin-top: 12px;
}

.seo-block h2 + p,
.seo-block h2 + .seo-list {
  margin-top: 14px;
}

.seo-list {
  margin: 0;
  padding-left: 22px;
  color: var(--text);
}

.seo-list li + li {
  margin-top: 10px;
}

.seo-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 14px 26px rgba(47, 103, 200, 0.22);
}

.seo-cta:hover {
  transform: translateY(-1px);
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .control-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .page-shell {
    width: min(100% - 20px, 1240px);
    padding-bottom: 110px;
  }

  .app-header,
  .panel-head,
  .roster-head {
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
  }

  .header-actions .action-button {
    flex: 1 1 calc(50% - 10px);
  }

  .control-panel {
    grid-template-columns: 1fr;
  }

  .tree-stage {
    min-width: 620px;
    min-height: 560px;
    padding: 70px 18px 40px;
  }

  .tree-level {
    gap: 16px;
  }

  .tree-group {
    gap: 12px;
  }

  .middle-layout {
    gap: 18px;
  }

  .member-card {
    width: 154px;
    padding: 14px 12px 12px;
  }

  .member-card.is-self {
    width: 170px;
  }

  .member-avatar {
    width: 54px;
    height: 54px;
  }

  .mobile-add-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .app-header,
  .canvas-panel,
  .panel-card,
  .modal-card {
    border-radius: 22px;
  }

  .header-actions .action-button {
    flex: 1 1 100%;
  }

  .tree-stage {
    min-width: 540px;
  }

  .tree-level {
    gap: 12px;
  }

  .tree-group {
    gap: 10px;
  }

  .middle-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .middle-slot {
    justify-content: center;
    min-height: auto;
  }

  .member-card {
    width: 128px;
    border-radius: 16px;
  }

  .member-card.is-self {
    width: 142px;
  }

  .member-name {
    font-size: 0.92rem;
  }

  .member-role,
  .member-gender,
  .member-meta {
    font-size: 0.72rem;
  }

  .member-card-actions {
    grid-template-columns: 1fr;
  }
}