/* board — fixed-viewport canvas PWA. The page NEVER scrolls; the board pans. */

:root {
  --vvh: 100dvh;
  --vvt: 0px;
  --ink: #ecebf0;
  --paper: #101014;
  --panel: rgba(28, 28, 34, 0.86);
  --panel-border: rgba(236, 235, 240, 0.1);
  --accent: #5f96e8;
  --danger: #ef6a60;
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);
}

body.mode-white {
  --ink: #1c1b22;
  --paper: #fbfaf7;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-border: rgba(28, 27, 34, 0.12);
  --accent: #3873c9;
  --danger: #d6453d;
}

/* social-kit chrome (chips, invite sheet, homeChip) reads these; declared on
   body (not :root) so the mode-white palette above re-resolves them */
body {
  --soc-bg: var(--panel);
  --soc-fg: var(--ink);
  --soc-dim: color-mix(in srgb, var(--ink) 55%, transparent);
  --soc-line: var(--panel-border);
  --soc-accent: var(--accent);
}

* {
  box-sizing: border-box;
  margin: 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  position: fixed;
  inset: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

#app {
  position: fixed;
  inset: 0;
  height: var(--vvh, 100dvh);
  transform: translateY(var(--vvt));
}

/* ---- canvas layers -------------------------------------------------------- */

.board-host {
  position: absolute;
  inset: 0;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  cursor: crosshair;
}

.board-layer {
  position: absolute;
  inset: 0;
  display: block;
}

/* ---- text editor overlay -------------------------------------------------- */

.text-editor {
  position: absolute;
  min-width: 2ch;
  max-width: 80vw;
  outline: 1.5px dashed var(--accent);
  outline-offset: 3px;
  background: transparent;
  z-index: 30;
  padding: 0;
  caret-color: var(--accent);
}

/* ---- top bar --------------------------------------------------------------- */

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: calc(var(--sat) + 8px) calc(var(--sar) + 10px) 8px calc(var(--sal) + 10px);
  z-index: 20;
  pointer-events: none;
}

.topbar > * {
  pointer-events: auto;
}

.topbar.offline .board-name::after {
  /* the text (incl. the leading " · ") comes from i18n via data-reconnect */
  content: attr(data-reconnect);
  opacity: 0.6;
  font-weight: 400;
}

.board-name {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--ink);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 10px;
  padding: 7px 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  max-width: 34vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.spacer {
  flex: 1;
}

.chip {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--ink);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 10px;
  padding: 7px 10px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}

.chip.active {
  border-color: var(--accent);
  color: var(--accent);
}

.chip.danger {
  color: var(--danger);
}

.roster {
  display: flex;
  gap: 5px;
  overflow: hidden;
}

.peer-chip {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0.55;
}

.peer-chip.direct {
  opacity: 1;
}

.peer-chip.relayed {
  opacity: 0.85;
}

/* ---- bottom tool rail ------------------------------------------------------ */

.toolbar {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(var(--sab) + 10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 20;
  max-width: calc(100vw - 16px);
}

.tool-rail,
.style-rail {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 14px;
  padding: 5px;
  max-width: 100%;
  overflow-x: auto;
}

.tool-btn {
  width: 42px;
  height: 42px;
  border: none;
  background: transparent;
  color: var(--ink);
  font-size: 19px;
  border-radius: 10px;
  cursor: pointer;
  flex: 0 0 auto;
}

.tool-btn.active {
  background: var(--accent);
  color: #fff;
}

.style-rail {
  gap: 8px;
  padding: 5px 10px;
}

.color-row,
.width-row {
  display: flex;
  gap: 5px;
  align-items: center;
}

.color-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  flex: 0 0 auto;
}

.color-btn.active {
  border-color: var(--accent);
  transform: scale(1.15);
}

/* palette swatches, both modes (token 0 = ink) */
.color-btn[data-c="0"] { background: var(--ink); }
.color-btn[data-c="1"] { background: #ef6a60; }
.color-btn[data-c="2"] { background: #f0a44e; }
.color-btn[data-c="3"] { background: #59c274; }
.color-btn[data-c="4"] { background: #5f96e8; }
.color-btn[data-c="5"] { background: #ab7ce4; }
.color-btn[data-c="6"] { background: #ee74ab; }
.color-btn[data-c="7"] { background: #4fc3d0; }

body.mode-white .color-btn[data-c="1"] { background: #d6453d; }
body.mode-white .color-btn[data-c="2"] { background: #e08b2d; }
body.mode-white .color-btn[data-c="3"] { background: #3d9950; }
body.mode-white .color-btn[data-c="4"] { background: #3873c9; }
body.mode-white .color-btn[data-c="5"] { background: #8a51c7; }
body.mode-white .color-btn[data-c="6"] { background: #d64d8c; }
body.mode-white .color-btn[data-c="7"] { background: #2d9da8; }

.width-btn {
  width: 30px;
  height: 26px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.width-btn span {
  display: block;
  width: 16px;
  border-radius: 2px;
  background: var(--ink);
}

.width-btn.active {
  border-color: var(--accent);
}

.fill-chip {
  font-size: 12px;
  padding: 5px 9px;
}

/* ---- selection caption ----------------------------------------------------- */

.sel-caption {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(var(--sab) + 118px);
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 13px;
  z-index: 21;
}

/* ---- export menu ------------------------------------------------------------ */

.export-menu {
  position: fixed;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 12px;
  overflow: hidden;
  z-index: 40;
}

.menu-item {
  border: none;
  background: transparent;
  color: var(--ink);
  padding: 11px 16px;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}

.menu-item:hover {
  background: rgba(127, 127, 127, 0.15);
}

/* ---- toasts ------------------------------------------------------------------ */

.toasts {
  position: absolute;
  top: calc(var(--sat) + 58px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 50;
  pointer-events: none;
  width: max-content;
  max-width: 92vw;
}

.toast {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  color: var(--ink);
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.3s;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.toast.show {
  opacity: 1;
}

/* ---- overlays / lobby / modals ---------------------------------------------- */

.overlay {
  position: fixed;
  inset: 0;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: calc(var(--sat) + 16px) 16px calc(var(--sab) + 16px);
  overflow-y: auto;
}

.modal {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: center;
}

.modal h2 {
  font-size: 26px;
  letter-spacing: 0.5px;
}

.modal p {
  font-size: 13px;
  opacity: 0.7;
  line-height: 1.5;
}

.modal input {
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--ink);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 16px; /* ≥16px suppresses iOS zoom-on-focus */
  flex: 1;
  min-width: 0;
}

.primary {
  border: none;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.primary.ghosty {
  background: transparent;
  border: 1px solid var(--panel-border);
  color: var(--ink);
}

.new-room-form {
  display: flex;
  gap: 8px;
}

.room-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 40vh;
  overflow-y: auto;
}

.room-row {
  display: flex;
  gap: 6px;
  align-items: stretch;
}

.room-open {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--ink);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 14px;
  cursor: pointer;
  min-width: 0;
}

.room-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-ago {
  font-size: 11px;
  opacity: 0.5;
  flex: 0 0 auto;
}

.icon-btn {
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--ink);
  border-radius: 10px;
  cursor: pointer;
  padding: 0 12px;
  font-size: 14px;
}

.icon-btn.forget.armed {
  border-color: var(--danger);
  color: var(--danger);
  font-size: 11px;
}

.rename-in {
  flex: 1;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--ink);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 16px;
}

.hint {
  font-size: 12px;
  opacity: 0.55;
  line-height: 1.5;
}

.hint.ver {
  opacity: 0.35;
}

.name-box {
  gap: 10px;
}

/* ---- access layer (private boards) ------------------------------------------ */

.access-slot {
  display: flex;
}

.req-row {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: left;
}

.req-label {
  font-weight: 600;
  font-size: 14px;
  flex: 0 0 auto;
}

.req-msg {
  flex: 1;
  font-size: 13px;
  opacity: 0.75;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.req-btns {
  display: flex;
  gap: 6px;
  flex: 0 0 auto;
}

.req-btns .primary,
.req-row .primary {
  padding: 8px 12px;
  font-size: 13px;
}

.primary.danger {
  color: var(--danger);
  border-color: var(--danger);
}

.access-sheet .modal {
  gap: 10px;
}

.lockout .modal input {
  width: 100%;
}

/* ---- identity sheet ---------------------------------------------------------- */

.id-box h2 {
  font-size: 34px;
}

.id-box .id-sub {
  font-size: 18px;
  margin-top: 8px;
}

.id-row {
  display: flex;
  gap: 6px;
}

.id-row input {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 16px;
}

.id-row #id-name {
  font-family: inherit;
}

.id-row .primary {
  padding: 10px 12px;
  font-size: 13px;
}

.id-warn {
  text-align: left;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
}

.identity-sheet .primary.ghosty.armed {
  border-color: var(--danger);
  color: var(--danger);
}

.self-chip {
  max-width: 30vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- social-kit overrides ----------------------------------------------------
   The kit's default bottom-left/right sits on the bottom-centered tool palette
   (edge-to-edge on phones) — lift its chips/toast above the rails, same
   clearance as .sel-caption. body-prefixed to outrank the kit's runtime-
   injected <style> (appended to head, so it wins ties). */

body .soc-chip.join {
  bottom: calc(var(--sab) + 118px);
}

body .soc-chip.inv {
  bottom: calc(var(--sab) + 158px);
}

body .soc-toast {
  bottom: calc(var(--sab) + 118px);
}

/* ---- update banner (main.ts) ------------------------------------------------- */

.update-banner {
  position: fixed;
  top: calc(var(--sat) + 10px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  border: none;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}