html, body{
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

:root{
  --bg: #ffffff;
  --panel: rgba(255,255,255,0.92);
  --panelSolid: #ffffff;
  --text: #111111;
  --border: #2a2a2a33;
  --btnBg: #ffffff;
  --btnBg2: #f7f7f7;
  --shadow: rgba(0,0,0,0.15);
  --accent: #ff8a00;

  --topbarBase: 56px;
  --bottombarH: 64px;
}

body.theme-dark{
  --bg: #0f1115;
  --panel: rgba(20,22,28,0.92);
  --panelSolid: #14161c;
  --text: #e8e8e8;
  --border: #ffffff1f;
  --btnBg: #1b1e26;
  --btnBg2: #202431;
  --shadow: rgba(0,0,0,0.45);
}

html, body{
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* Всё в одном окне */
body{
  overflow: hidden;
  overscroll-behavior: none;
}

button, input, select{ font: inherit; color: var(--text); }

/* =========================
   TOPBAR (SCROLL WHOLE ROW)
   ========================= */
#topbar{
  /* safe-area для iPhone PWA (чтобы не залезало под статус-бар) */
  padding-top: env(safe-area-inset-top);
  height: calc(var(--topbarBase) + env(safe-area-inset-top));

  display: flex;
  align-items: center;
  gap: 8px;

  padding-left: 8px;
  padding-right: 8px;
  padding-bottom: 8px;
  box-sizing: border-box;

  background: var(--panelSolid);
  border-bottom: 1px solid var(--border);

  /* ВАЖНО: теперь скроллится ВСЯ строка */
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;

  /* чтобы ничего не “прилипало” и не перекрывало */
  justify-content: flex-start;
  flex-wrap: nowrap;
}
#topbar::-webkit-scrollbar{ display: none; }

/* группы больше НЕ делают свой скролл, они просто “кусочки” одной строки */
#topbar .topbar-left,
#topbar .topbar-right{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  min-width: max-content;
}

#topbar button{
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  background: var(--btnBg);
  border-radius: 10px;
  cursor: pointer;
  flex: 0 0 auto;
  white-space: nowrap;
}

#btnDownload{
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  background: var(--btnBg);
  flex: 0 0 auto;
  white-space: nowrap;
}

/* =========================
   BOTTOM BAR (iPhone safe bottom)
   ========================= */
#bottombar{
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;

  height: var(--bottombarH);

  /* ВАЖНО: не увеличиваем высоту, а добавляем только padding снизу.
     Так кнопка не “взлетает” слишком высоко. */
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  box-sizing: border-box;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--panelSolid);
  border-top: 1px solid var(--border);
  z-index: 2000;
}

#calcBtn{
  width: min(520px, 92vw);
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--btnBg2);
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
}
body.theme-dark #calcBtn{ color: var(--accent); }

/* =========================
   APP LAYOUT (account safe areas)
   ========================= */
#app{
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  min-height: 200px;

  /* базовый fallback */
  height: calc(100vh - (var(--topbarBase) + env(safe-area-inset-top)) - var(--bottombarH));
}

/* более корректно на iOS/Android (динамический viewport) */
@supports (height: 100dvh){
  #app{
    height: calc(100dvh - (var(--topbarBase) + env(safe-area-inset-top)) - var(--bottombarH));
  }
}

/* Sidebar */
#sidebar{
  width: 360px;
  max-width: 92vw;
  box-sizing: border-box;
  padding: 10px;

  overflow-y: auto;
  overflow-x: hidden;

  background: var(--panel);
  border-right: 1px solid var(--border);
  position: relative;
  z-index: 1000;

  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

#toggleSidebar{
  width: 100%;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btnBg);
  cursor: pointer;
}

#sidebar.collapsed{
  width: 56px;
  padding: 10px 6px;
}
#sidebar.collapsed .sidebar-content{ display: none; }
#sidebar.collapsed #toggleSidebar{
  width: 44px;
  height: 44px;
  border-radius: 14px;
  font-size: 18px;
  font-weight: 800;
}

.sidebar-content{ margin-top: 10px; }
h3, h4{ margin: 10px 0; }

.row{
  display: grid;
  grid-template-columns: 1fr 220px;
  align-items: center;
  gap: 10px;
  margin: 8px 0;
}

.row input, .row select{
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btnBg);
  box-sizing: border-box;
  min-width: 0;
}

.row button{
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btnBg);
  cursor: pointer;
}

.note{ font-size: 12px; opacity: 0.8; margin: 6px 0 10px; }
hr{ border: 0; border-top: 1px solid var(--border); margin: 12px 0; }
.points{ display: grid; gap: 6px; font-size: 14px; }

.input-panel{
  margin-top: 10px;
  padding: 10px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--btnBg);
}

.input-panel .hint{ font-size: 12px; opacity: 0.75; margin-bottom: 8px; }
.hidden{ display: none; }

.status{
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btnBg);
  font-size: 14px;
}
.status.ok{ border-color: #b7e2c1; }
.status.warn{ border-color: #f1d29a; }
.status.err{ border-color: #efb0b0; }

.profile-wrap{
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--btnBg);
  max-width: 100%;
  overflow: hidden;
}

#profileCanvas{
  width: 100%;
  height: 220px;
  display: block;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--btnBg) 80%, #0000 20%);
}

.profile-legend{
  margin-top: 8px;
  font-size: 12px;
  opacity: 0.85;
  line-height: 1.35;
  word-break: break-word;
}

/* Map */
#map{
  flex: 1;
  min-width: 0;
  position: relative;
  outline: none;
  overflow: hidden;
  touch-action: pan-x pan-y;
  overscroll-behavior: contain;
}

/* Button feedback */
button, #btnDownload{
  transition: transform 0.05s ease, filter 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}
button:hover, #btnDownload:hover{ filter: brightness(0.97); }
button:active, #btnDownload:active{ transform: translateY(1px); filter: brightness(0.94); }
button:focus-visible, #btnDownload:focus-visible{
  outline: 2px solid rgba(200,200,200,0.35);
  outline-offset: 2px;
}
button.is-on{
  border-color: #8a8a8a;
  background: color-mix(in srgb, var(--btnBg) 70%, #ffffff 30%);
  font-weight: 700;
}

/* Map info */
.map-info{
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 900;

  min-width: 240px;
  max-width: calc(100% - 24px);
  padding: 10px 12px;

  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;

  font-size: 13px;
  line-height: 1.4;
  color: var(--text);

  box-shadow: 0 4px 12px var(--shadow);
}
.map-info.hidden{ display: none; }
.map-info .ok{ color: #1f7a1f; font-weight: 800; }
.map-info .warn{ color: #a36a00; font-weight: 800; }
.map-info .err{ color: #9b1c1c; font-weight: 800; }
.map-info .mrow{ display: flex; justify-content: space-between; gap: 10px; }

/* Pick hint */
.map-pick-hint{
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 950;

  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: 0 4px 12px var(--shadow);

  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.map-pick-hint.hidden{ display: none; }

.leaflet-control-attribution{ display: none !important; }

body.theme-dark .leaflet-bar a,
body.theme-dark .leaflet-control-zoom a{
  background: var(--btnBg);
  color: var(--text);
  border-color: var(--border);
}

/* Mobile portrait: overlay sidebar */
@media (max-width: 560px) and (orientation: portrait){
  #sidebar{
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: min(92vw, 360px);
    max-width: 92vw;

    border-right: 1px solid var(--border);
    box-shadow: 0 10px 24px var(--shadow);

    transform: translateX(0);
    transition: transform 0.18s ease;
    z-index: 1100;

    will-change: transform;
  }

  #sidebar.collapsed{
    width: min(92vw, 360px);
    padding: 10px;
    transform: translateX(calc(-100% + 56px));
  }

  #sidebar.collapsed #toggleSidebar{
    position: absolute;
    top: 8px;
    right: -2px;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    z-index: 1200;
  }

  #sidebar:not(.collapsed) #toggleSidebar{
    height: 40px;
    border-radius: 12px;
    font-weight: 800;
  }

  .row{ grid-template-columns: 1fr 160px; }

  .map-info{
    min-width: 220px;
    right: 10px;
    top: 10px;
    font-size: 12px;
  }
}

@media (max-width: 900px){
  #sidebar{ width: 320px; }
  .row{ grid-template-columns: 1fr 180px; }
}