/* ==========================================================================
   Buoy Tracker v2.0 — instrument-panel design system
   Tokens first; every component styles through the tokens so light/dark
   both work. Dark mode follows the OS (prefers-color-scheme).
   ========================================================================== */

:root {
  --ground: #EEF3F2;
  --panel: #FBFDFC;
  --panel-2: #F2F7F6;
  --ink: #16272F;
  --ink-2: #5A6E75;
  --line: #D7E2E1;
  --accent: #D9560B;
  --accent-soft: #FBE9DD;
  --good: #177B54;
  --good-soft: #E2F1EA;
  --warn: #B07C0F;
  --warn-soft: #F7EEDA;
  --crit: #BE3A3F;
  --crit-soft: #F9E5E5;
  --muted-state: #5A6E75;
  --muted-soft: #E8EEED;
  --sheet-shadow: 0 -8px 28px rgba(22, 39, 47, 0.18);
  --card-shadow: 0 1px 3px rgba(22, 39, 47, 0.08);
  --display: "Avenir Next", "Avenir", Futura, "Trebuchet MS", system-ui, sans-serif;
  --body-font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0C171D;
    --panel: #132430;
    --panel-2: #0F1E28;
    --ink: #E4EDEA;
    --ink-2: #8CA3AB;
    --line: #24394599;
    --accent: #F0742F;
    --accent-soft: #3A2415;
    --good: #3FBF8C;
    --good-soft: #12382B;
    --warn: #E0A83C;
    --warn-soft: #3A2E12;
    --crit: #E4636A;
    --crit-soft: #421C1F;
    --muted-state: #8CA3AB;
    --muted-soft: #1B2C35;
    --sheet-shadow: 0 -8px 28px rgba(0, 0, 0, 0.5);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  }
  .leaflet-tile { filter: brightness(0.72) saturate(0.75) contrast(1.05); }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--body-font);
  font-size: 15px;
  background: var(--ground);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
}

button { font-family: inherit; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- bridge (header) ---------- */
#bridge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  padding-top: calc(8px + env(safe-area-inset-top, 0px));
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex: none;
  z-index: 1100;
}
.wordmark {
  font-family: var(--display);
  font-weight: 600;
  font-size: 15.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.wordmark .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  flex: none;
}
.wordmark small { font-family: var(--mono); font-weight: 400; font-size: 10.5px; color: var(--ink-2); }
#bridge .spacer { flex: 1; }
.linkstate {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-2);
  white-space: nowrap;
}
.linkstate .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--good); flex: none; }
.linkstate .pulse.down { background: var(--crit); }
.linkstate .pulse.warn { background: var(--warn); }
@media (prefers-reduced-motion: no-preference) {
  .linkstate .pulse { animation: bridgepulse 2.4s infinite; }
  @keyframes bridgepulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
}
#node-count-wrap, #server-uptime-wrap { font-family: var(--mono); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
#node-count { color: var(--ink); }
.pollwrap { width: 90px; flex: none; }
.pollwrap .track { height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; }
#refresh-progress-bar { display: block; height: 100%; width: 0%; background: var(--good); border-radius: 2px; transition: width 0.1s linear; }
#rate-limit-message { font-family: var(--mono); font-size: 10.5px; color: var(--warn); display: none; }
.gearbtn {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--ink);
  border-radius: 7px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
.gearbtn:hover { border-color: var(--accent); }

/* ---------- app body: rail + map ---------- */
#appbody { flex: 1; display: flex; min-height: 0; position: relative; }
#map { flex: 1; min-width: 0; min-height: 0; background: var(--ground); z-index: 1; }

#sidebar {
  width: 318px;
  flex: none;
  background: var(--panel-2);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
#sheet-handle { display: none; }
#nodes {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-height: 0;
}

/* ---------- buoy / node cards ---------- */
.node {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 11px 13px 10px;
  box-shadow: var(--card-shadow);
  cursor: pointer;
}
.node.moved-alert { border-color: color-mix(in srgb, var(--crit) 45%, var(--line)); }
.node.gray { opacity: 0.85; }
.node .toprow { display: flex; align-items: center; gap: 7px; }
.node-name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 16.5px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.node.gateway-node .node-name { font-size: 14.5px; font-weight: 500; }
.mutebadge { font-size: 14px; flex: none; }
.iconbtn {
  margin-left: auto;
  border: none;
  background: none;
  color: var(--ink-2);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 5px;
  flex: none;
}
.iconbtn:hover { color: var(--accent); background: var(--panel-2); }

.state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  border-radius: 99px;
  padding: 2px 10px 2px 8px;
  margin: 6px 0 8px;
  max-width: 100%;
}
.state::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: none; }
.state.ok      { color: var(--good);        background: var(--good-soft); }
.state.moved   { color: var(--crit);        background: var(--crit-soft); }
.state.stale   { color: var(--warn);        background: var(--warn-soft); }
.state.muted-s { color: var(--muted-state); background: var(--muted-soft); }
.state.nofix   { color: var(--ink-2);       background: var(--muted-soft); }
.state small { font-weight: 400; opacity: 0.85; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 12px;
  background: var(--panel-2);
}
.chip b { font-family: var(--mono); font-weight: 500; font-variant-numeric: tabular-nums; }
.chip .lbl { color: var(--ink-2); font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; }
.chip .led { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.led.g { background: var(--good); }
.led.y { background: var(--warn); }
.led.r { background: var(--crit); }
.led.n { background: var(--line); }
.chip.alert-led { border-color: color-mix(in srgb, var(--crit) 40%, var(--line)); }


/* ---------- mobile: bottom sheet ---------- */
@media (max-width: 768px) {
  #appbody { flex-direction: column; }
  #map { position: absolute; inset: 0; }
  #sidebar {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    width: 100%;
    border-right: none;
    background: var(--panel);
    border-radius: 16px 16px 0 0;
    box-shadow: var(--sheet-shadow);
    z-index: 1000;
    /* v2.1: draggable sheet — JS drives height between snap points
       (collapsed strip / ~45% / ~70%); this is the initial collapsed state */
    height: 180px;
    max-height: 75dvh;
    transition: height 0.25s ease-out;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    touch-action: none;
  }
  #sidebar.dragging { transition: none; }
  #nodes { touch-action: pan-y; }
  @media (prefers-reduced-motion: reduce) { #sidebar { transition: none; } }
  #sidebar.expanded { /* height driven inline by JS; class keeps card styling */ }
  #sheet-handle {
    display: block;
    width: 44px;
    height: 20px;
    padding: 8px 0;
    margin: 0 auto;
    border: none;
    background: none;
    cursor: grab;
    flex: none;
  }
  #sheet-handle::before {
    content: "";
    display: block;
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: var(--line);
  }
  #nodes { padding: 0 12px 10px; }
  /* collapsed: strip rows — NAME … BATTERY STATE (battery stays visible so a
     weak buoy is glanceable without expanding; label dropped for space) */
  #sidebar:not(.expanded) .node {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 4px; border: none; box-shadow: none; border-radius: 0;
    border-top: 1px solid var(--line); background: none;
  }
  #sidebar:not(.expanded) .node:first-child { border-top: none; }
  #sidebar:not(.expanded) .iconbtn { display: none; }
  #sidebar:not(.expanded) .toprow { min-width: 0; flex: 0 1 auto; }
  #sidebar:not(.expanded) .node > div:not(.toprow):not(.chips) { order: 3; }
  #sidebar:not(.expanded) .state { margin: 0; }
  #sidebar:not(.expanded) .state small { display: none; }
  #sidebar:not(.expanded) .chips { display: flex; order: 2; margin-left: auto; }
  #sidebar:not(.expanded) .chips .chip:not(.chip-batt) { display: none; }
  #sidebar:not(.expanded) .chip.chip-batt .lbl { display: none; }
}

@media (min-width: 769px) {
  #sidebar { height: auto !important; }
}

/* ---------- menu modal (Controls) ---------- */
#menu-modal {
  display: none;
  position: fixed; inset: 0;
  z-index: 2000;
  background: rgba(10, 22, 28, 0.55);
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
#menu-modal.open { display: flex; align-items: center; justify-content: center; }
#menu-panel {
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  max-width: 360px;
  width: 92%;
  max-height: 85vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  position: relative;
  margin: auto;
}
#menu-close {
  position: absolute; top: 8px; right: 14px;
  font-size: 26px; color: var(--ink-2); cursor: pointer; line-height: 1;
}
#menu-close:hover { color: var(--ink); }
#menu-title {
  font-family: var(--display);
  font-size: 17px; font-weight: 600;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
#menu-tabs { display: flex; gap: 0; margin-bottom: 14px; border-bottom: 1px solid var(--line); }
.tab-btn {
  border: none;
  background: none;
  color: var(--ink-2);
  padding: 7px 16px;
  font-size: 13.5px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

.menu-section { margin-bottom: 14px; }
.menu-section + .menu-section { border-top: 1px solid var(--line); padding-top: 12px; }
.menu-section-title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-2); margin-bottom: 7px;
}
.menu-section label { display: block; font-size: 13px; margin: 6px 0; cursor: pointer; }
.menu-section input[type="checkbox"] { margin-right: 7px; accent-color: var(--accent); }
.menu-section input[type="number"] {
  width: 70px; padding: 3px 6px; font-size: 13px; font-family: var(--mono);
  border: 1px solid var(--line); border-radius: 5px;
  background: var(--panel-2); color: var(--ink);
}
.menu-note { font-size: 11.5px; color: var(--ink-2); margin-top: 5px; }

.btn {
  display: block; width: 100%;
  padding: 8px 12px; margin-top: 6px;
  border: none; border-radius: 7px;
  font-size: 13.5px; font-weight: 600;
  cursor: pointer;
  color: #fff;
}
.btn.primary { background: var(--accent); }
.btn.good    { background: var(--good); }
.btn.crit    { background: var(--crit); }
.btn.warn    { background: var(--warn); }
.btn.plain   { background: var(--panel-2); color: var(--ink); border: 1px solid var(--line); }
.btn:hover { filter: brightness(1.06); }

#tab-legend .legend-block { line-height: 1.9; }
.legend-line { font-size: 12.5px; margin: 3px 0; }


/* ---------- api key modal ---------- */
#api-key-modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(10, 22, 28, 0.7);
  z-index: 10000;
  align-items: center; justify-content: center;
  padding: 20px;
}
#api-key-panel {
  background: var(--panel);
  color: var(--ink);
  padding: 32px 24px;
  border-radius: 12px;
  border: 1px solid var(--line);
  max-width: 460px; width: 100%;
}
#api-key-panel h2 { font-family: var(--display); margin: 0 0 14px; font-size: 20px; }
#api-key-panel p { color: var(--ink-2); font-size: 14px; margin: 0 0 16px; line-height: 1.5; }
#api-key-input {
  width: 100%; padding: 12px; font-size: 16px;
  border: 1px solid var(--line); border-radius: 7px;
  background: var(--panel-2); color: var(--ink);
  margin-bottom: 14px;
}
#api-key-panel .fineprint { font-size: 12px; color: var(--ink-2); margin: 14px 0 0; text-align: center; }

/* ---------- battery history modal ---------- */
#nodeDetailsModal {
  display: none;
  position: fixed;
  top: calc(60px + env(safe-area-inset-top, 0px));
  left: 16px;
  z-index: 2100;
  pointer-events: none;
}
#nodeDetailsPanel {
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px;
  max-width: 360px;
  box-shadow: var(--card-shadow);
  pointer-events: auto;
}
#nodeDetailsPanel .head {
  display: flex; justify-content: space-between; align-items: center;
  gap: 6px; padding-bottom: 4px; margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}
#modalTitle {
  margin: 0; font-size: 13px; font-weight: 600; flex: 1;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
#nodeDetailsPanel .closex {
  background: none; border: none; cursor: pointer;
  color: var(--ink-2); font-size: 15px; line-height: 1; padding: 0 3px;
}
#histogramContainer { overflow-x: auto; text-align: center; }

/* ---------- leaflet touches ---------- */
.leaflet-popup-content-wrapper {
  background: var(--panel); color: var(--ink);
  border-radius: 8px; border: 1px solid var(--line);
}
.leaflet-popup-tip { background: var(--panel); }
.leaflet-tooltip-custom {
  background: var(--ink); color: var(--ground);
  border: none; border-radius: 4px;
  padding: 3px 8px; font-size: 12px; font-family: var(--mono);
}
.leaflet-tooltip-custom::before { border-top-color: var(--ink); }

/* legacy stubs kept for JS references; never shown */
#menu-fab, #settings-gear, #sidebar-overlay, #trafficLightLegend, #menu-btn { display: none !important; }

@media (max-width: 560px) {
  #node-count-wrap, #server-uptime-wrap { display: none; }
  .wordmark { font-size: 14px; }
  .pollwrap { width: 56px; }
}

/* battery-state coloring: history button + solid-fill Batt chip */
.iconbtn.batt-g { color: var(--good); }
.iconbtn.batt-y { color: var(--warn); }
.iconbtn.batt-r { color: var(--crit); }
.chip.chip-fill-y,
.chip.chip-fill-r { font-weight: 600; }
.chip.chip-fill-y { background: var(--warn-soft); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--line)); }
.chip.chip-fill-r { background: var(--crit-soft); color: var(--crit); border-color: color-mix(in srgb, var(--crit) 45%, var(--line)); }
.chip.chip-fill-y .lbl,
.chip.chip-fill-r .lbl { color: inherit; opacity: 0.8; }
.chip.chip-fill-y b,
.chip.chip-fill-r b { font-weight: 700; }

/* inline battery sparkline on buoy cards */
.sparkline { align-self: center; flex: none; opacity: 0.9; }
#sidebar:not(.expanded) .sparkline { display: none; }