/* ============================================================
   PortDesignLab — tools.css
   Shared layout and components for tool pages (loaded by main_menu/tool_base.html).
   Breakpoints: 1199px (small laptop), 992px (tablet: one column), 600px (phone),
   landscape phones (max-height 540px) and touch screens (pointer: coarse).
   ============================================================ */

/* --- Page --- */
.tool-app { padding: 24px var(--pad-h) 36px; }
.tool-header { display: flex; align-items: baseline; gap: 4px 16px; flex-wrap: wrap; margin-bottom: 20px; }
.tool-header .tool-page-tag { margin: 0; }
.tool-header .tool-page-title { margin: 0; font-size: 26px; }
.tool-header-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.tool-app h5, .tool-section-title { font-family: var(--font-display); font-size: 17px; font-weight: 600; margin: 24px 0 12px; }
.tool-muted { color: var(--text-muted); font-size: 14px; }

/* Bootstrap components inside tool pages use the site palette */
.tool-app .form-control, .tool-app .form-select { border-color: rgba(0, 0, 0, 0.15); color: var(--text-primary); font-family: var(--font-display); }
.tool-app .form-control:focus, .tool-app .form-select:focus { border-color: var(--red); box-shadow: 0 0 0 2px var(--red-soft); }
.tool-app .form-check-input:checked { background-color: var(--red); border-color: var(--red); }
.tool-app .form-range::-webkit-slider-thumb { background: var(--red); }
.tool-app .form-range::-moz-range-thumb { background: var(--red); }
.tool-app .btn-danger { background-color: var(--red); border-color: var(--red); font-family: var(--font-mono); letter-spacing: 0.04em; }
.tool-app .btn-danger:hover, .tool-app .btn-danger:active { background-color: #a51915; border-color: #a51915; }
.tool-app .btn-outline-danger { color: var(--red); border-color: var(--red); font-family: var(--font-mono); letter-spacing: 0.04em; }
.tool-app .btn-outline-danger:hover { background: var(--red); color: #fff; }
.tool-app .btn-light { border: 1px solid var(--red-border); background: #fff; color: var(--text-secondary); font-family: var(--font-mono); letter-spacing: 0.04em; }
.tool-app .btn-light:hover { border-color: var(--red); color: var(--red); background: #fff; }
.tool-app .btn-light.active { border-color: var(--red); color: var(--red); background: var(--red-faint); }
.tool-app .table { color: var(--text-primary); margin-bottom: 0; }
.tool-app .table > :not(caption) > * > * { border-color: rgba(0, 0, 0, 0.08); }
.tool-app .table thead th { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.tool-app a.tool-link, .tool-app .custom-a { color: var(--red); text-decoration: none; }
.tool-app a.tool-link:hover, .tool-app .custom-a:hover { text-decoration: underline; }

/* --- Layout: sidebar + main --- */
.tool-layout { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 20px; align-items: start; }
.tool-main { min-width: 0; }

/* --- Sidebar --- */
.tool-sidebar { position: sticky; top: 16px; display: flex; flex-direction: column; max-height: calc(100vh - 150px); border: 1px solid var(--red-border); background: var(--bg); }
.tool-groups { overflow-y: auto; padding: 4px 16px 8px; }
.tool-group { border-bottom: 1px solid var(--red-border); padding: 4px 0 8px; }
.tool-group:last-child { border-bottom: none; }
.tool-group > summary { list-style: none; cursor: pointer; padding: 10px 0 6px; font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); display: flex; justify-content: space-between; }
.tool-group > summary::-webkit-details-marker { display: none; }
.tool-group > summary::after { content: '+'; color: var(--text-dim); }
.tool-group[open] > summary::after { content: '−'; }
.tool-group-title { padding: 10px 0 6px; font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); }
.tool-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 8px; padding: 12px 16px; border-top: 1px solid var(--red-border); background: var(--bg); }
.tool-actions .btn { font-size: 14px; }

/* --- Fields: label + control (+ unit) --- */
.tool-field { display: grid; grid-template-columns: minmax(0, 1fr) 165px; align-items: center; gap: 4px 10px; padding: 4px 0; margin: 0; font-size: 14px; color: var(--text-secondary); }
.tool-field .form-control, .tool-field .form-select { font-size: 14px; }
.tool-field .input-group-text { min-width: 44px; justify-content: center; font-size: 12px; color: var(--text-muted); background: #fafafa; }
.tool-field-hint { grid-column: 1 / -1; font-size: 12px; color: var(--text-dim); margin-top: -2px; }
.tool-field--wide { grid-template-columns: 1fr; }
.tool-field--range { grid-template-columns: minmax(0, 1fr) auto; }
.tool-field--range .form-range { grid-column: 1 / -1; }
.tool-field output { font-family: var(--font-mono); font-size: 13px; color: var(--text-primary); }
.tool-choice { display: flex; gap: 6px; flex-wrap: wrap; }

/* --- Card (simple forms, panels) --- */
.tool-card { border: 1px solid var(--red-border); background: var(--bg); padding: 16px 20px; }
.tool-card--narrow { max-width: 640px; }
.tool-card + .tool-card { margin-top: 16px; }
.tool-card .tool-actions { padding: 12px 0 0; border-top: none; }

/* --- Result tiles --- */
.tool-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; background: var(--red-border); border: 1px solid var(--red-border); margin-bottom: 20px; }
.tool-tile { background: var(--bg); padding: 14px 18px; min-width: 0; }
.tool-tile-caption { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dim); }
.tool-tile-value { font-size: 24px; font-weight: 700; line-height: 1.3; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.tool-tile-value small { font-size: 14px; font-weight: 400; color: var(--text-muted); margin-left: 4px; }
.tool-tile-note { font-size: 13px; color: var(--text-muted); }
.tool-tile--main .tool-tile-value { color: var(--red); font-size: 28px; }
button.tool-tile { border: none; text-align: left; cursor: pointer; }
button.tool-tile:hover { background: var(--red-faint); }
button.tool-tile.active { box-shadow: inset 3px 0 0 var(--red); background: var(--red-faint); }

/* --- Viewer: map, svg drawing or 3d scene --- */
.tool-viewer { position: relative; height: max(480px, calc(100vh - 270px)); border: 1px solid var(--red-border); overflow: hidden; background: var(--bg); }
.tool-viewer--tall { height: max(480px, calc(100vh - 170px)); }
.tool-viewer-canvas { position: absolute; inset: 0; }
.tool-viewer-canvas > svg { width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
.tool-viewer-canvas > svg:active { cursor: grabbing; }
.tool-toolbar { position: absolute; top: 12px; right: 12px; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; z-index: 500; }
.tool-toolbar--left { right: auto; left: 12px; justify-content: flex-start; }
.tool-toolbar .btn, .tool-toolbar label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; background: rgba(255, 255, 255, 0.92); border: 1px solid var(--red-border); color: var(--text-secondary); }
.tool-toolbar .btn:hover { border-color: var(--red); color: var(--red); }
.tool-toolbar .btn.active { border-color: var(--red); color: #fff; background: var(--red); }
.tool-toolbar label { display: flex; align-items: center; gap: 6px; padding: 0 10px; border-radius: 0.25rem; cursor: pointer; margin: 0; }
.tool-expand { position: absolute; right: 12px; bottom: 10px; z-index: 500; min-width: 36px; min-height: 36px; font-size: 16px; line-height: 1; background: rgba(255, 255, 255, 0.92); border: 1px solid var(--red-border); color: var(--text-secondary); }
.tool-expand:hover { border-color: var(--red); color: var(--red); }
.tool-hint { position: absolute; left: 12px; bottom: 10px; padding-right: 56px; font-size: 12px; color: var(--text-dim); z-index: 500; pointer-events: none; }
.tool-hint--on-dark { color: rgba(255, 255, 255, 0.85); text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6); }
.tool-hint-touch { display: none; }
.tool-viewer.tool-viewer--full { position: fixed; inset: 0; z-index: 1060; height: auto !important; min-height: 0; border: none; }
body.tool-no-scroll { overflow: hidden; }

/* --- Tables and lists --- */
.tool-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--red-border); }
.tool-table-wrap .table { min-width: 100%; }
.tool-table-wrap .table td, .tool-table-wrap .table th { vertical-align: middle; }
.tool-list { list-style: none; margin: 0; padding: 0; border: 1px solid var(--red-border); }
.tool-list-item { display: flex; align-items: center; gap: 8px 16px; padding: 10px 14px; border-bottom: 1px solid var(--red-border); flex-wrap: wrap; }
.tool-list-item:last-child { border-bottom: none; }
.tool-list-main { flex: 1 1 200px; min-width: 0; }
.tool-list-title { font-weight: 600; overflow-wrap: anywhere; }
.tool-list-meta { font-size: 13px; color: var(--text-muted); }
.tool-list-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.tool-list-actions form { margin: 0; }
.tool-list-empty { padding: 16px; color: var(--text-muted); }

/* --- Loading overlay for long calculations --- */
.tool-loading-overlay { position: fixed; inset: 0; z-index: 2000; display: none; align-items: center; justify-content: center; flex-direction: column; gap: 12px; background: rgba(255, 255, 255, 0.85); font-family: var(--font-mono); letter-spacing: 0.08em; color: var(--text-secondary); }
.tool-loading-overlay.show { display: flex; }
.tool-loading-overlay .spinner-border { color: var(--red); width: 2.5rem; height: 2.5rem; }

/* --- Leaflet maps inside viewers --- */
.tool-viewer .leaflet-container { width: 100%; height: 100%; }

/* ============================================================
   Touch screens: bigger targets, 16px inputs so phones do not zoom in on focus
   ============================================================ */
@media (pointer: coarse) {
  .tool-hint-mouse { display: none; }
  .tool-hint-touch { display: inline; }
  .tool-app .form-control, .tool-app .form-select { font-size: 16px; min-height: 40px; }
  .tool-app .form-control-sm, .tool-app .form-select-sm { font-size: 16px; }
  .tool-toolbar .btn, .tool-toolbar label { min-height: 38px; min-width: 38px; }
  .tool-app .btn { min-height: 40px; }
  .tool-app .form-check-input { width: 1.3em; height: 1.3em; }
}

/* small laptops */
@media (max-width: 1199px) {
  .tool-layout { grid-template-columns: 310px minmax(0, 1fr); }
  .tool-field { grid-template-columns: minmax(0, 1fr) 150px; }
  .tool-tile { padding: 12px 14px; }
  .tool-tile-caption { font-size: 11px; letter-spacing: 0.08em; }
  .tool-tile-value { font-size: 22px; }
  .tool-tile--main .tool-tile-value { font-size: 24px; }
}

/* tablets and phones in portrait: one column */
@media (max-width: 992px) {
  .tool-app { padding-top: 16px; }
  .tool-header { margin-bottom: 12px; }
  .tool-header .tool-page-title { font-size: 20px; }
  .tool-layout { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .tool-sidebar { position: static; max-height: none; }
  .tool-groups { overflow: visible; }
  .tool-actions { position: sticky; bottom: 0; z-index: 4; box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.06); }
  .tool-card .tool-actions { position: static; box-shadow: none; }
  .tool-viewer { height: 55vh; min-height: 300px; }
  /* viewer first, pinned on top while the inputs scroll */
  .tool-layout--pin-viewer .tool-main { order: -1; position: sticky; top: 0; z-index: 5; background: var(--bg); padding-top: 8px; margin-top: -8px; }
  .tool-layout--pin-viewer .tool-tiles { margin-bottom: 8px; }
  .tool-layout--pin-viewer .tool-viewer { height: 45vh; min-height: 260px; }
  .tool-layout--viewer-first .tool-main { order: -1; }
}

/* tablets in portrait: field groups in two columns */
@media (min-width: 601px) and (max-width: 992px) and (orientation: portrait) {
  .tool-groups--columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; align-items: start; }
  .tool-groups--columns .tool-group:last-child { border-bottom: 1px solid var(--red-border); }
}

/* phones */
@media (max-width: 600px) {
  .tool-header .tool-page-tag { font-size: 12px; }
  .tool-header .tool-page-title { font-size: 18px; }
  .tool-header-actions { margin-left: 0; width: 100%; }
  .tool-header-actions .btn { flex: 1; }
  .tool-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tool-tile { padding: 8px 12px; }
  .tool-tile-caption { font-size: 10px; letter-spacing: 0.06em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .tool-tile-value { font-size: 18px; }
  .tool-tile--main .tool-tile-value { font-size: 20px; }
  .tool-tile-value small { font-size: 12px; }
  .tool-viewer { height: 50vh; min-height: 260px; }
  .tool-layout--pin-viewer .tool-viewer { height: 38vh; min-height: 240px; }
  .tool-toolbar { top: 8px; left: 8px; right: 8px; flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; scrollbar-width: none; }
  .tool-toolbar .btn, .tool-toolbar label { flex: none; padding: 4px 8px; font-size: 11px; }
  .tool-hint { left: 8px; bottom: 6px; font-size: 11px; }
  .tool-field { grid-template-columns: minmax(0, 1fr) 150px; font-size: 13px; }
  .tool-groups { padding: 0 12px 4px; }
  .tool-actions { padding: 10px 12px; }
  .tool-card { padding: 12px 14px; }
  .tool-list-actions { width: 100%; }
  .tool-list-actions .btn, .tool-list-actions form { flex: 1; }
  .tool-list-actions form .btn { width: 100%; }

  /* table rows become cards, cells are labelled from data-label */
  .tool-table--stack thead { display: none; }
  .tool-table--stack, .tool-table--stack tbody, .tool-table--stack tr, .tool-table--stack td { display: block; width: 100%; }
  .tool-table--stack tr { border-bottom: 1px solid var(--red-border); padding: 8px 0; }
  .tool-table--stack td { border: none !important; padding: 3px 12px !important; display: flex; justify-content: space-between; gap: 12px; text-align: right; }
  .tool-table--stack td::before { content: attr(data-label); color: var(--text-muted); text-align: left; }
  .tool-table--stack td[data-label=""]::before, .tool-table--stack td:not([data-label])::before { content: none; }
  .tool-table--stack td.tool-cell-actions { justify-content: stretch; }
  .tool-table--stack td.tool-cell-actions > *, .tool-table--stack td.tool-cell-actions .btn { width: 100%; }
  .tool-table-wrap:has(.tool-table--stack) { overflow: visible; }
}

/* phones in landscape: sidebar on the left, viewer on the right */
@media (orientation: landscape) and (max-height: 540px) {
  .tool-app { padding-top: 8px; }
  .tool-header { display: none; }
  .tool-layout { grid-template-columns: minmax(280px, 42%) minmax(0, 1fr); gap: 12px; }
  .tool-main, .tool-layout--pin-viewer .tool-main { order: 0; position: sticky; top: 0; margin-top: 0; padding-top: 0; }
  .tool-sidebar { position: static; max-height: none; }
  .tool-tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 6px; }
  .tool-tile { padding: 4px 8px; }
  .tool-tile-caption { font-size: 9px; letter-spacing: 0.04em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .tool-tile-value, .tool-tile--main .tool-tile-value { font-size: 16px; }
  .tool-tile-value small { font-size: 11px; }
  .tool-viewer, .tool-layout--pin-viewer .tool-viewer { height: calc(100vh - 70px); min-height: 220px; }
  .tool-hint { display: none; }
}

/* ============================================================
   Generic Bootstrap tool pages (tables, simple forms) on small screens
   ============================================================ */
@media (max-width: 600px) {
  .tool-page { padding: 20px var(--pad-h) 40px; }
  .tool-page-title { font-size: 20px; }
}

/* stacked table cards: hide secondary cells (row numbers) on phones */
@media (max-width: 600px) {
  .tool-table--stack td.tool-cell-minor { display: none; }
}

/* wide fields keep the label above the control at every width */
.tool-field.tool-field--wide { grid-template-columns: minmax(0, 1fr); }
/* expand button at the top right (maps keep their attribution at the bottom right) */
.tool-expand.tool-expand--top { top: 10px; bottom: auto; }
/* icon-only secondary actions (delete) keep their own width in list rows */
@media (max-width: 600px) {
  .tool-list-actions form:has(> .btn-light:only-of-type) { flex: 0 0 auto; }
  .tool-list-actions form:has(> .btn-light:only-of-type) .btn { width: 48px; }
}

/* range fields: value next to the label at every width */
.tool-field.tool-field--range { grid-template-columns: minmax(0, 1fr) auto; }
/* toggle buttons (btn-check) */
.tool-app .btn-check:checked + .btn-light { border-color: var(--red); color: var(--red); background: var(--red-faint); }
/* landscape phones: as many tile columns as there are tiles */
@media (orientation: landscape) and (max-height: 540px) {
  .tool-tiles { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); }
}

/* action rows wrap when there is no room for every button */
.tool-actions { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); }
.tool-actions .btn { white-space: nowrap; }
.tool-actions .btn { padding-left: 8px; padding-right: 8px; overflow: hidden; text-overflow: ellipsis; }