/* ==========================================================================
   Smart Dustbin - stylesheet
   Visual language modelled on apple.com: a light, near-white canvas, one
   strong accent blue, SF-style typography with tight tracking on the big
   headlines, pill buttons, soft 18px cards and a lot of breathing room.
   Full dark-mode support, because the system does.
   ========================================================================== */

:root {
  /* surfaces */
  --bg:            #ffffff;
  --bg-soft:       #f5f5f7;   /* Apple's section grey */
  --bg-tint:       #fbfbfd;
  --panel:         #ffffff;
  --panel-2:       #f5f5f7;
  --border:        #d2d2d7;
  --border-soft:   #e8e8ed;

  /* type */
  --text:          #1d1d1f;
  --text-dim:      #6e6e73;
  --text-faint:    #86868b;

  /* accent */
  --brand:         #0071e3;   /* Apple button blue */
  --brand-hover:   #0077ed;
  --link:          #0066cc;
  --accent:        #0071e3;

  /* semantic */
  --ok:            #34c759;
  --ok-deep:       #248a3d;
  --warn:          #ff9500;
  --warn-deep:     #c93400;
  --full:          #ff3b30;
  --full-deep:     #d70015;
  --offline:       #86868b;

  --radius:        18px;
  --radius-sm:     12px;
  --radius-pill:   980px;
  --shadow:        0 4px 24px rgba(0,0,0,.06);
  --shadow-lift:   0 12px 40px rgba(0,0,0,.10);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --nav-h: 48px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #000000;
    --bg-soft:     #101012;
    --bg-tint:     #0a0a0c;
    --panel:       #1d1d1f;
    --panel-2:     #262629;
    --border:      #3a3a3c;
    --border-soft: #2c2c2e;

    --text:        #f5f5f7;
    --text-dim:    #a1a1a6;
    --text-faint:  #86868b;

    --brand:       #0a84ff;
    --brand-hover: #339cff;
    --link:        #2997ff;
    --accent:      #2997ff;

    --ok:          #30d158;
    --warn:        #ff9f0a;
    --full:        #ff453a;
    --offline:     #8e8e93;

    --shadow:      0 4px 24px rgba(0,0,0,.5);
    --shadow-lift: 0 12px 40px rgba(0,0,0,.6);
  }
}

* { box-sizing: border-box; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.47059;
  letter-spacing: -.022em;
  min-height: 100vh;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0 0 .5rem; color: var(--text); }

h1 {
  font-size: clamp(40px, 6.2vw, 72px);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -.015em;
}
h2 {
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -.012em;
}
h3 { font-size: 21px; line-height: 1.19; font-weight: 600; letter-spacing: -.01em; }

p { margin: 0 0 1rem; color: var(--text-dim); line-height: 1.5; }

.container { width: min(1180px, 92vw); margin-inline: auto; }
.narrow    { width: min(760px, 92vw);  margin-inline: auto; }
.section   { padding: 5rem 0; }
.muted     { color: var(--text-faint); font-size: 14px; letter-spacing: -.016em; }
.stack > * + * { margin-top: 1.25rem; }
.row       { display: flex; gap: .75rem; flex-wrap: wrap; }
.row-tight { display: flex; gap: .5rem;  flex-wrap: wrap; }
.spacer    { flex: 1; }
.hidden    { display: none !important; }

/* ---------------------------------------------------------------- header
   Apple's nav: 48px tall, translucent, blurred, 12px links.            */
.site-header {
  position: sticky; top: 0; z-index: 9000;
  height: var(--nav-h);
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-soft);
}
@media (prefers-color-scheme: dark) {
  .site-header { background: rgba(22,22,23,.78); }
}
.site-header .inner {
  display: flex; align-items: center; gap: 1rem;
  height: var(--nav-h);
}
.brand {
  display: flex; align-items: center; gap: .5rem;
  font-size: 14px; font-weight: 600; color: var(--text);
  letter-spacing: -.01em;
}
.brand:hover { text-decoration: none; opacity: .8; }
.brand .logo {
  width: 26px; height: 26px; display: grid; place-items: center;
  font-size: 15px; border-radius: 7px;
  background: var(--panel-2);
}
.brand small {
  display: block; font-weight: 400; font-size: 10px;
  color: var(--text-faint); letter-spacing: .02em;
}
.nav { margin-left: auto; display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
/* :not(.btn) so a button living in the nav keeps its pill shape - a plain
   `.nav a` rule is more specific than `.btn` and would quietly win. */
.nav a:not(.btn) {
  color: var(--text-dim); padding: .35rem .7rem; border-radius: 6px;
  font-size: 12px; font-weight: 400; letter-spacing: -.01em;
}
.nav a:not(.btn):hover { color: var(--text); text-decoration: none; }
.nav a.active:not(.btn) { color: var(--text); font-weight: 500; }
.nav .btn { font-size: 12px; padding: .32rem .85rem; }

/* ---------------------------------------------------------------- buttons
   Pill shaped, solid blue for the primary action - Apple's exact idiom. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .68rem 1.35rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-family: inherit; font-size: 15px; font-weight: 400;
  letter-spacing: -.01em; line-height: 1.2;
  cursor: pointer; text-decoration: none;
  transition: background .2s ease, border-color .2s ease, opacity .2s ease;
}
.btn:hover { background: var(--panel-2); text-decoration: none; }
.btn:active { opacity: .75; }
.btn:disabled { opacity: .38; cursor: not-allowed; }
.btn:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }

.btn-primary {
  background: var(--brand); border-color: var(--brand); color: #fff;
  font-weight: 400;
}
.btn-primary:hover { background: var(--brand-hover); border-color: var(--brand-hover); }

.btn-danger {
  background: transparent; border-color: var(--full); color: var(--full);
}
.btn-danger:hover { background: rgba(255,59,48,.08); }

.btn-warn {
  background: transparent; border-color: var(--warn); color: var(--warn-deep);
}
@media (prefers-color-scheme: dark) { .btn-warn { color: var(--warn); } }
.btn-warn:hover { background: rgba(255,149,0,.1); }

.btn-sm    { padding: .42rem .9rem; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------------------------------------------------------------- cards */
.card {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.6rem 1.75rem;
  box-shadow: var(--shadow);
}
@media (prefers-color-scheme: dark) {
  .card { border-color: var(--border-soft); }
}
.card-title {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: .75rem; margin-bottom: 1.1rem; flex-wrap: wrap;
}
.card-title h3 { margin: 0; }
.grid { display: grid; gap: 1.25rem; }

/* ---------------------------------------------------------------- badges */
.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .2rem .65rem; border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 500; letter-spacing: -.008em;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-ok      { background: rgba(52,199,89,.12);  color: var(--ok-deep); }
.badge-warning { background: rgba(255,149,0,.14);  color: var(--warn-deep); }
.badge-full    { background: rgba(255,59,48,.12);  color: var(--full-deep); }
.badge-offline { background: rgba(134,134,139,.14);color: var(--text-faint); }
@media (prefers-color-scheme: dark) {
  .badge-ok      { color: var(--ok); }
  .badge-warning { color: var(--warn); }
  .badge-full    { color: var(--full); }
}

/* ---------------------------------------------------------------- KPI */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; }
.kpi {
  background: var(--bg-soft);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
}
@media (prefers-color-scheme: dark) { .kpi { background: var(--panel); } }
.kpi .label {
  font-size: 12px; letter-spacing: -.01em; color: var(--text-faint); font-weight: 500;
}
.kpi .value {
  font-size: 40px; font-weight: 600; line-height: 1.08;
  margin-top: .35rem; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.kpi .sub { font-size: 12px; color: var(--text-faint); margin-top: .2rem; }
.kpi.is-ok    .value { color: var(--ok-deep); }
.kpi.is-warn  .value { color: var(--warn-deep); }
.kpi.is-full  .value { color: var(--full-deep); }
.kpi.is-info  .value { color: var(--brand); }
@media (prefers-color-scheme: dark) {
  .kpi.is-ok .value { color: var(--ok); }
  .kpi.is-warn .value { color: var(--warn); }
  .kpi.is-full .value { color: var(--full); }
}

/* ---------------------------------------------------------------- fill bar */
.fill-bar {
  height: 6px; border-radius: var(--radius-pill);
  background: rgba(0,0,0,.08); overflow: hidden;
}
@media (prefers-color-scheme: dark) { .fill-bar { background: rgba(255,255,255,.14); } }
.fill-bar > span {
  display: block; height: 100%; border-radius: var(--radius-pill);
  transition: width .5s cubic-bezier(.28,.11,.32,1), background .3s;
}
.fill-ok      { background: var(--ok); }
.fill-warning { background: var(--warn); }
.fill-full    { background: var(--full); }
.fill-offline { background: var(--offline); }

/* ---------------------------------------------------------------- map */
.map-wrap {
  position: relative; height: 480px;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
}
#map, #publicMap { position: absolute; inset: 0; }
.leaflet-container { background: var(--bg-soft) !important; font-family: var(--font) !important; }
.leaflet-popup-content-wrapper, .leaflet-popup-tip {
  background: var(--panel); color: var(--text);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lift);
}
.leaflet-popup-content { margin: .85rem 1rem; font-size: 14px; line-height: 1.45; }
.leaflet-popup-content b { color: var(--text); font-weight: 600; }
.leaflet-bar a { background: var(--panel); color: var(--text); border-color: var(--border-soft); }
.leaflet-bar a:hover { background: var(--panel-2); color: var(--text); }
.leaflet-control-attribution { font-size: 10px; }

/* custom marker */
.bin-marker {
  width: 28px; height: 28px; border-radius: 50% 50% 50% 4px;
  transform: rotate(-45deg);
  display: grid; place-items: center;
  border: 2px solid #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  font-size: 10px; font-weight: 600; color: #fff;
  letter-spacing: -.02em;
}
.bin-marker span { transform: rotate(45deg); }
.bin-marker.m-ok      { background: var(--ok); }
.bin-marker.m-warning { background: var(--warn); }
.bin-marker.m-full    { background: var(--full); }
.bin-marker.m-offline { background: var(--offline); }
.bin-marker.selected  { outline: 3px solid var(--brand); outline-offset: 2px; }
.bin-marker.m-full::after {
  content: ""; position: absolute; inset: -6px; border-radius: inherit;
  border: 2px solid var(--full); animation: pulse 1.8s ease-out infinite;
}
@keyframes pulse {
  0%   { transform: scale(.85); opacity: .8; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* fallback map, used when Leaflet or the tiles cannot load */
.fallback-map {
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(0,0,0,.05) 1px, transparent 1px) 0 0 / 100% 48px,
    linear-gradient(90deg, rgba(0,0,0,.05) 1px, transparent 1px) 0 0 / 48px 100%,
    var(--bg-soft);
}
@media (prefers-color-scheme: dark) {
  .fallback-map {
    background:
      linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 100% 48px,
      linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px) 0 0 / 48px 100%,
      var(--bg-soft);
  }
}
.fallback-map .fm-pin { position: absolute; transform: translate(-50%,-50%); cursor: pointer; }
.fallback-map .fm-note {
  position: absolute; left: 14px; bottom: 12px; font-size: 12px;
  color: var(--text-faint); background: var(--panel);
  padding: .35rem .7rem; border-radius: var(--radius-pill);
  border: 1px solid var(--border-soft);
}

/* ---------------------------------------------------------------- tables */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  background: var(--panel);
}
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
thead th {
  text-align: left; padding: .85rem 1rem;
  background: var(--bg-soft);
  color: var(--text-dim); font-size: 12px; font-weight: 500;
  letter-spacing: -.008em; white-space: nowrap;
}
@media (prefers-color-scheme: dark) { thead th { background: var(--panel-2); } }
tbody td { padding: .85rem 1rem; border-top: 1px solid var(--border-soft); vertical-align: middle; }
tbody tr { cursor: pointer; transition: background .15s; }
tbody tr:hover { background: var(--bg-soft); }
@media (prefers-color-scheme: dark) { tbody tr:hover { background: var(--panel-2); } }
tbody tr.selected { background: rgba(0,113,227,.07); }
td.num { font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- forms */
label.field { display: block; margin-bottom: 1.1rem; }
label.field > span {
  display: block; font-size: 13px; font-weight: 400;
  color: var(--text-dim); margin-bottom: .4rem; letter-spacing: -.01em;
}
label.field > span b { color: var(--text); font-weight: 600; }

input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: .8rem 1rem;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit; font-size: 16px; letter-spacing: -.01em;
  transition: border-color .2s, box-shadow .2s;
}
input::placeholder { color: var(--text-faint); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(0,113,227,.18);
}
input[type=range] {
  width: 100%; accent-color: var(--brand);
  height: 4px; margin: .8rem 0;
}
/* A fat invisible thumb: easy to grab with a finger, unchanged visually. */
input[type=range]::-webkit-slider-thumb { width: 22px; height: 22px; }
input[type=range]::-moz-range-thumb     { width: 22px; height: 22px; }

.filter-select { width: auto; padding: .4rem .7rem; font-size: 14px; }
.filter-input  { width: 230px; padding: .4rem .7rem; font-size: 14px; }
.grow-input    { flex: 1; min-width: 220px; }

/* ---------------------------------------------------------------- login */
.login-page {
  min-height: 100vh; display: grid; place-items: center;
  padding: 3rem 1.25rem; background: var(--bg-soft);
}
@media (prefers-color-scheme: dark) { .login-page { background: var(--bg); } }
.login-card { width: min(420px, 100%); padding: 2.5rem 2.25rem; }
.login-card .logo-big {
  width: 56px; height: 56px; margin: 0 auto 1.25rem;
  border-radius: 14px; display: grid; place-items: center;
  font-size: 28px; background: var(--bg-soft);
}
@media (prefers-color-scheme: dark) { .login-card .logo-big { background: var(--panel-2); } }
/* Stated before the fields, not after them: this is a demo sign-in, and a
   login form on a personal *.github.io subdomain is exactly the shape of a
   phishing page. Being loud about what it is costs nothing. */
.demo-banner {
  margin-bottom: 1.25rem;
  padding: .85rem 1rem;
  background: rgba(255,149,0,.10);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-dim);
}
.demo-banner b { color: var(--text); font-weight: 600; }

/* ---- read-only session banner ------------------------------------------ */
.readonly-banner {
  margin-bottom: 1rem;
  padding: .85rem 1.1rem;
  background: rgba(0,113,227,.07);
  border-left: 3px solid var(--brand);
  border-radius: var(--radius-sm);
  font-size: 14px; line-height: 1.55; color: var(--text-dim);
}
.readonly-banner b { color: var(--text); font-weight: 600; }

/* A disabled control should look withheld, not broken. */
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ---- Google sign-in block ---------------------------------------------- */
.google-box { margin-bottom: 1.25rem; }
#googleButton { display: flex; justify-content: center; min-height: 44px; }
.google-note {
  margin: .6rem 0 0; font-size: 12px; text-align: center;
  color: var(--text-faint); line-height: 1.5;
}
.or-divider {
  display: flex; align-items: center; gap: .75rem;
  margin: 1.25rem 0 .25rem;
  color: var(--text-faint); font-size: 12px;
}
.or-divider::before, .or-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}

/* ---- signed-in identity in the dashboard header ------------------------ */
.who { display: inline-flex; align-items: center; gap: .4rem; margin: 0 .5rem; }
.who-avatar {
  width: 22px; height: 22px; border-radius: 50%;
  object-fit: cover; border: 1px solid var(--border);
}

.login-error {
  display: none; margin-bottom: 1rem; padding: .7rem .95rem;
  background: rgba(255,59,48,.09);
  border-radius: var(--radius-sm);
  color: var(--full-deep); font-size: 14px;
}
@media (prefers-color-scheme: dark) { .login-error { color: var(--full); } }
.login-error.show { display: block; }
.hint {
  margin-top: 1.5rem; padding: .9rem 1.05rem; font-size: 13px;
  background: var(--bg-soft); border-radius: var(--radius-sm);
  color: var(--text-dim); line-height: 1.6;
}
@media (prefers-color-scheme: dark) { .hint { background: var(--panel-2); } }
.hint code {
  font-family: var(--mono); font-size: 12.5px;
  background: var(--panel); padding: .1rem .4rem; border-radius: 5px;
  color: var(--text);
}

/* ---------------------------------------------------------------- console
   Deliberately dark, the way a code console reads in Apple's own tools. */
.console {
  background: #1d1d1f; border-radius: var(--radius-sm);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.6;
  padding: 1rem 1.15rem; height: 240px; overflow-y: auto;
  color: #a2f5c8; white-space: pre-wrap; word-break: break-word;
  letter-spacing: 0;
}
.console .c-in   { color: #6ac4ff; }
.console .c-warn { color: #ffd60a; }
.console .c-err  { color: #ff6961; }
.console .c-dim  { color: #86868b; }

/* ---------------------------------------------------------------- twin */
.twin { display: grid; grid-template-columns: 220px 1fr; gap: 2rem; align-items: start; }
@media (max-width: 680px) { .twin { grid-template-columns: 1fr; } }
.twin svg { width: 100%; height: auto; }
.lid-group { transition: transform .45s cubic-bezier(.28,.11,.32,1); }
.led-lamp  { transition: fill .12s, filter .12s; }
.led-on-green { fill: #34c759; filter: drop-shadow(0 0 6px rgba(52,199,89,.8)); }
.led-on-red   { fill: #ff3b30; filter: drop-shadow(0 0 7px rgba(255,59,48,.85)); }
.led-off      { fill: #d2d2d7; filter: none; }
@media (prefers-color-scheme: dark) { .led-off { fill: #3a3a3c; } }

.readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px,1fr)); gap: .7rem; }
.readout div {
  background: var(--bg-soft); border-radius: var(--radius-sm);
  padding: .65rem .8rem;
}
@media (prefers-color-scheme: dark) { .readout div { background: var(--panel-2); } }
.readout .k { font-size: 11px; color: var(--text-faint); font-weight: 500; }
.readout .v {
  font-size: 19px; font-weight: 600; letter-spacing: -.015em;
  font-variant-numeric: tabular-nums; margin-top: .1rem;
}

/* ---------------------------------------------------------------- hero */
.hero { padding: 6rem 0 3rem; text-align: center; }
.hero .eyebrow {
  display: block; font-size: 19px; font-weight: 600;
  color: var(--brand); letter-spacing: .004em; margin-bottom: .75rem;
}
.hero h1 { margin-bottom: 1.25rem; }
.hero p {
  max-width: 620px; margin-inline: auto;
  font-size: 21px; line-height: 1.38; color: var(--text-dim);
  letter-spacing: .011em;
}
.hero .cta { display: flex; gap: 1.25rem; justify-content: center; flex-wrap: wrap; margin-top: 2rem; }

/* an Apple-style text link with a chevron */
.link-arrow { font-size: 17px; color: var(--link); }
.link-arrow::after { content: " \203A"; }
.link-arrow:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- flow */
.flow {
  display: flex; flex-wrap: wrap; gap: .5rem;
  align-items: center; justify-content: center;
}
.flow .step {
  background: var(--bg-soft); border-radius: var(--radius-pill);
  padding: .5rem 1.1rem; font-size: 14px; font-weight: 500;
  color: var(--text);
}
@media (prefers-color-scheme: dark) { .flow .step { background: var(--panel); } }
.flow .arrow { color: var(--text-faint); font-size: 15px; }

/* ---------------------------------------------------------------- alerts */
.alert-item {
  display: flex; gap: .85rem; align-items: flex-start;
  padding: .7rem 0; border-bottom: 1px solid var(--border-soft); font-size: 14px;
}
.alert-item:last-child { border-bottom: none; }
.alert-item time {
  color: var(--text-faint); font-size: 12px; white-space: nowrap;
  font-variant-numeric: tabular-nums; padding-top: 1px;
}

/* ---------------------------------------------------------------- footer */
.site-footer {
  margin-top: 4rem; background: var(--bg-soft);
  padding: 2.25rem 0; color: var(--text-faint); font-size: 12px;
  line-height: 1.6;
}
@media (prefers-color-scheme: dark) { .site-footer { background: var(--bg-soft); } }
.site-footer .inner {
  display: flex; flex-wrap: wrap; gap: .75rem; justify-content: space-between;
  width: min(1180px, 92vw); margin-inline: auto;
}
.site-footer b { color: var(--text-dim); font-weight: 500; }

/* ---------------------------------------------------------------- toast */
.toast {
  position: fixed; bottom: 26px; left: 50%;
  transform: translateX(-50%) translateY(14px);
  z-index: 12000;
  background: rgba(29,29,31,.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  color: #f5f5f7;
  padding: .8rem 1.4rem; border-radius: var(--radius-pill);
  box-shadow: var(--shadow-lift); font-size: 14px; max-width: 88vw;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------------------------------------------------------------- layout */
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.dash-layout { display: grid; grid-template-columns: 1fr 360px; gap: 1.25rem; align-items: start; }
@media (max-width: 1000px) {
  .dash-layout, .cols-2, .cols-3 { grid-template-columns: 1fr; }
  .map-wrap { height: 400px; }
  .section { padding: 3.5rem 0; }
  .hero { padding: 3.5rem 0 2rem; }
}

iframe.wokwi-frame {
  width: 100%; height: 480px; border: 1px solid var(--border-soft);
  border-radius: var(--radius); background: var(--bg-soft);
}

code {
  font-family: var(--mono); font-size: .92em;
  background: var(--bg-soft); padding: .12rem .38rem; border-radius: 5px;
}
@media (prefers-color-scheme: dark) { code { background: var(--panel-2); } }

::selection { background: rgba(0,113,227,.22); }

/* ==========================================================================
   MOBILE
   --------------------------------------------------------------------------
   Everything above is the desktop design. This block adapts it for phones and
   small tablets. Three problems are being solved, in order of severity:

     1. The nav had more links than fit in a 48 px bar, so it wrapped and
        spilled over the hero. It now scrolls horizontally instead.
     2. Tap targets were 27-30 px tall. Apple's own guidance is 44 pt, so
        every control gets a minimum height on touch screens.
     3. The data tables forced a 640 px min-width and scrolled sideways
        inside their card. On a phone the low-value columns are hidden
        instead, so the table fits and stays readable.
   ========================================================================== */

/* ---- tablet and below ------------------------------------------------- */
@media (max-width: 820px) {
  .container, .site-footer .inner { width: 92vw; }
  .section { padding: 3rem 0; }
  .hero    { padding: 3rem 0 1.5rem; }
  .card    { padding: 1.35rem 1.4rem; }
  .map-wrap { height: 360px; }
  iframe.wokwi-frame { height: 380px; }
}

/* ---- phones ------------------------------------------------------------ */
@media (max-width: 640px) {

  /* --- typography: tighten the big display sizes ---------------------- */
  h1 { font-size: clamp(32px, 8.6vw, 44px); line-height: 1.08; }
  h2 { font-size: clamp(24px, 6.4vw, 32px); }
  h3 { font-size: 19px; }
  body { font-size: 16px; }

  .hero { padding: 2.25rem 0 1.25rem; text-align: left; }
  .hero .eyebrow { font-size: 17px; }
  .hero p { font-size: 17px; margin-inline: 0; text-align: left; }
  .hero .cta { justify-content: stretch; flex-direction: column; gap: .75rem; }
  .hero .cta .btn { width: 100%; }

  .section { padding: 2.5rem 0; }
  .card { padding: 1.15rem 1.15rem; border-radius: 14px; }
  .card-title { margin-bottom: .85rem; }

  /* --- header: scroll the nav instead of wrapping it ------------------ */
  .site-header .inner { gap: .5rem; }
  .brand { flex: 0 0 auto; }
  .brand small { display: none; }          /* the sub-label costs width */

  .nav {
    flex-wrap: nowrap;                     /* THE fix - no more spilling */
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    mask-image: linear-gradient(to right, #000 88%, transparent);
    -webkit-mask-image: linear-gradient(to right, #000 88%, transparent);
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav > * { flex: 0 0 auto; }
  .nav a:not(.btn) { padding: .5rem .55rem; font-size: 13px; }
  .nav .who { display: none; }             /* name + avatar: no room */

  /* --- touch targets: 44 px minimum ----------------------------------- */
  .btn        { min-height: 44px; padding: .7rem 1.25rem; }
  .btn-sm     { min-height: 40px; padding: .55rem 1rem; font-size: 14px; }
  .nav .btn   { min-height: 32px; padding: .35rem .85rem; }  /* fits the bar */
  .btn-block  { min-height: 48px; }

  /* --- tables: drop the low-value columns rather than scroll ---------- */
  .table-wrap { overflow-x: visible; }
  table { min-width: 0; font-size: 14px; }
  thead th, tbody td { padding: .7rem .5rem; }

  /* Scoped by section, and applied to BOTH thead and tbody - hiding only the
     body cells leaves a wider header row, which drags the table back out to
     its full width and reintroduces the sideways scroll. */

  /* public table: Bin | Location | Zone | Type | Fill | Status | Last seen
     keep 1, 2, 5, 6                                                      */
  #live table tr > *:nth-child(3),
  #live table tr > *:nth-child(4),
  #live table tr > *:nth-child(7) { display: none; }

  /* admin table: Bin | Location | Zone | Type | Fill | Lid | Battery |
                  Status | Last seen | Control        keep 1, 2, 5, 8     */
  #fleet table tr > *:nth-child(3),
  #fleet table tr > *:nth-child(4),
  #fleet table tr > *:nth-child(6),
  #fleet table tr > *:nth-child(7),
  #fleet table tr > *:nth-child(9),
  #fleet table tr > *:nth-child(10) { display: none; }

  /* Location is the only free-text column; truncate it rather than let it
     push the table wide. */
  #live table tr > *:nth-child(2),
  #fleet table tr > *:nth-child(2) {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* --- dashboard layout ----------------------------------------------- */
  .map-wrap { height: 300px; }
  .kpi { padding: 1rem 1.1rem; }
  .kpi .value { font-size: 32px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: .7rem; }

  .twin { gap: 1.25rem; }
  [data-sim=view] { max-width: 200px; margin-inline: auto; }
  .readout { grid-template-columns: repeat(2, 1fr); }
  .console { height: 200px; font-size: 12px; padding: .8rem .9rem; }
  iframe.wokwi-frame { height: 320px; }

  /* A 4 px-tall range input is a 4 px-tall finger target. Padding grows the
     hit box without changing how the track looks. */
  input[type=range] { height: auto; padding: 11px 0; margin: .3rem 0; }

  .filter-input, .filter-select { width: 100%; }
  .card-title .row-tight { width: 100%; }
  .grow-input { min-width: 0; width: 100%; }

  /* --- login ----------------------------------------------------------- */
  .login-page { padding: 1.5rem 1rem; }
  .login-card { padding: 1.9rem 1.4rem; }

  /* --- misc ------------------------------------------------------------ */
  .flow { justify-content: flex-start; }
  .flow .step { font-size: 13px; padding: .45rem .85rem; }
  .toast { bottom: 16px; width: calc(100vw - 32px); max-width: none; text-align: center; }
  .site-footer .inner { flex-direction: column; gap: .4rem; }
}

/* ---- very small phones (iPhone SE 1st gen and similar) ----------------- */
@media (max-width: 360px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .readout  { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 30px; }
  .card { padding: 1rem; }
}

/* ---- landscape phones: the map should not eat the whole screen --------- */
@media (max-height: 520px) and (orientation: landscape) {
  .map-wrap { height: 260px; }
  .console  { height: 160px; }
  .hero     { padding: 1.5rem 0 1rem; }
}

/* ---- real touch devices, any width ------------------------------------- */
@media (hover: none) and (pointer: coarse) {
  tbody tr:hover { background: transparent; }   /* no sticky hover state */
  .btn:hover     { background: var(--panel); }
  .btn-primary:hover { background: var(--brand); }
}