/* ============================================================
   WindLine — "aero race telemetry"
   Dark wind-tunnel cockpit · mint wind accent · amber→coral score ramp
   Big Shoulders Display / Hanken Grotesk / Space Mono · mobile-first
   ============================================================ */

:root {
  --ink:        #080c11;
  --ink-2:      #0d141c;
  --surface:    #111b25;
  --surface-2:  #16222f;
  --line:       rgba(150, 196, 214, 0.12);
  --line-soft:  rgba(150, 196, 214, 0.07);

  --text:       #e9f3f4;
  --muted:      #8ea3ad;
  --faint:      #5d717c;

  --wind:       #19e6a6;   /* primary: airflow mint */
  --wind-deep:  #0fae7d;
  --air:        #56c7ff;   /* secondary: cool airflow blue */

  /* opportunity ramp */
  --s-hi:   #19e6a6;       /* exceptional */
  --s-mid:  #8ee84f;       /* strong */
  --s-warm: #ffc24b;       /* decent */
  --s-low:  #ff6a52;       /* low / coral */
  --hazard: #ff5470;

  --display: "Big Shoulders Display", "Hanken Grotesk", sans-serif;
  --body:    "Hanken Grotesk", system-ui, sans-serif;
  --mono:    "Space Mono", ui-monospace, monospace;

  --r:   14px;
  --r-lg: 22px;
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body);
  color: var(--text);
  background:
    radial-gradient(120% 80% at 80% -10%, rgba(25, 230, 166, 0.10), transparent 55%),
    radial-gradient(90% 70% at -10% 10%, rgba(86, 199, 255, 0.08), transparent 50%),
    linear-gradient(180deg, var(--ink-2), var(--ink) 60%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* drifting wind streamlines behind everything */
.windfield {
  position: fixed;
  inset: -20% -10% -10%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: repeating-linear-gradient(
    24deg,
    transparent 0 22px,
    rgba(150, 210, 230, 0.05) 22px 23px,
    transparent 23px 46px
  );
  -webkit-mask-image: radial-gradient(120% 90% at 70% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(120% 90% at 70% 0%, #000 30%, transparent 75%);
  animation: drift 22s linear infinite;
}
@keyframes drift {
  to { background-position: 460px -200px; }
}
@media (prefers-reduced-motion: reduce) {
  .windfield { animation: none; }
}

.shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 72px;
}

/* ---------- masthead ---------- */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 2px 22px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__gust {
  width: 30px; height: 30px;
  flex: none;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--wind), var(--wind-deep) 70%);
  box-shadow: 0 0 0 4px rgba(25, 230, 166, 0.14), 0 0 22px rgba(25, 230, 166, 0.5);
  position: relative;
}
.brand__gust::after {
  content: "";
  position: absolute; left: 100%; top: 50%;
  width: 26px; height: 2px; margin-top: -1px;
  background: linear-gradient(90deg, var(--wind), transparent);
  border-radius: 2px;
}
.brand__name {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.7rem, 7vw, 2.4rem);
  letter-spacing: 0.01em;
  line-height: 0.92;
  text-transform: uppercase;
}
.brand__name span { color: var(--wind); }
.brand__tag {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  max-width: 22ch;
}

.lang { display: flex; gap: 2px; padding: 3px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; }
.lang__opt {
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--faint);
  padding: 6px 11px;
  border-radius: 999px;
  transition: color 0.18s, background 0.18s;
}
.lang__opt.is-active { color: var(--ink); background: var(--wind); }
.lang__opt:not(.is-active):hover { color: var(--text); }

/* ---------- control panel (instrument) ---------- */
.panel {
  background: linear-gradient(180deg, var(--surface), var(--ink-2));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.panel::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--wind), var(--air), transparent);
  opacity: 0.7;
}
.panel__eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}

.bounds { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 14px 0; }
.duo    { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 16px; }

label { display: block; }
label span {
  display: block;
  margin-bottom: 5px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
input {
  width: 100%;
  padding: 12px 13px;
  font-family: var(--mono);
  font-size: 16px;            /* prevents iOS focus-zoom */
  color: var(--text);
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--r);
  min-height: 48px;
  transition: border-color 0.18s, box-shadow 0.18s;
}
input:focus {
  outline: none;
  border-color: var(--wind);
  box-shadow: 0 0 0 3px rgba(25, 230, 166, 0.16);
}

/* radius slider */
.radius { display: block; margin: 0 0 16px; }
.radius > span output { font-family: var(--mono); font-weight: 700; color: var(--wind); }
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; min-height: 0; padding: 0; margin-top: 9px;
  background: linear-gradient(90deg, var(--wind-deep), var(--wind));
  border: 0; border-radius: 99px;
}
input[type="range"]:focus { outline: none; box-shadow: none; }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: #eafff6; border: 3px solid var(--wind);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5); cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: #eafff6; border: 3px solid var(--wind); cursor: pointer;
}

/* map */
.map {
  height: 300px;
  margin: 14px 0 12px;
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--line);
}
.map-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.map-actions .btn { width: auto; flex: none; min-height: 44px; }
.map-actions .hint { margin: 0; }
.pin {
  display: block; width: 20px; height: 20px; border-radius: 50%;
  background: var(--wind); border: 3px solid #03130d;
  box-shadow: 0 0 0 6px rgba(25, 230, 166, 0.22), 0 0 16px var(--wind);
}
/* leaflet dark tweaks */
.leaflet-container { background: #0b1118; font-family: var(--body); }
.leaflet-control-attribution { background: rgba(8,12,17,0.72) !important; color: var(--faint) !important; }
.leaflet-control-attribution a { color: var(--muted) !important; }
.leaflet-bar a { background: var(--surface) !important; color: var(--text) !important; border-color: var(--line) !important; }
.leaflet-bar a:hover { background: var(--surface-2) !important; }
/* divIcons (centre pin + wind arrows) must not show Leaflet's default white box */
.leaflet-div-icon { background: transparent; border: 0; }
.wind-icon { background: none; border: 0; }
.wind-arrow { width: 26px; height: 26px; filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.85)); }
/* dark popups */
.leaflet-popup-content-wrapper, .leaflet-popup-tip {
  background: var(--surface-2); color: var(--text);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.55);
}
.leaflet-popup-content { font-family: var(--body); font-size: 0.84rem; line-height: 1.45; margin: 10px 12px; }
.leaflet-popup-content strong { font-family: var(--display); font-weight: 700; font-size: 1.05rem; }
.leaflet-container a.leaflet-popup-close-button { color: var(--muted); }

/* buttons */
.btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 14px 18px;
  border: 0;
  border-radius: var(--r);
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.2s, background 0.2s;
}
.btn:active { transform: translateY(1px) scale(0.995); }
.btn--accent {
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid rgba(86, 199, 255, 0.4);
}
.btn--accent:hover { border-color: var(--air); box-shadow: 0 0 0 3px rgba(86, 199, 255, 0.12); }
.btn--primary {
  color: #03130d;
  background: linear-gradient(100deg, var(--wind), #4cf0bf);
  box-shadow: 0 12px 28px -12px rgba(25, 230, 166, 0.8);
}
.btn--primary:hover { box-shadow: 0 16px 34px -10px rgba(25, 230, 166, 0.9); }
.btn__arrow { transition: transform 0.2s; }
.btn--primary:hover .btn__arrow { transform: translateX(4px); }
.hint { margin: 8px 2px 0; color: var(--faint); font-size: 0.8rem; }

/* ---------- status bar ---------- */
.status-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 16px 0 22px; }
.stat {
  display: flex; flex-direction: column; gap: 3px;
  padding: 11px 14px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
}
.stat__k { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); }
.stat__v { font-family: var(--display); font-weight: 700; font-size: 1.15rem; letter-spacing: 0.02em; }
.stat__v.is-busy { color: var(--air); }

/* ---------- results / segment cards ---------- */
.results { display: grid; gap: 14px; }

.seg {
  position: relative;
  background: linear-gradient(180deg, var(--surface), var(--ink-2));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 18px 16px 16px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(14px);
  animation: rise 0.5s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  animation-delay: var(--i, 0ms);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.seg:hover { transform: translateY(-3px); border-color: rgba(150,196,214,0.22); box-shadow: var(--shadow); }
.seg::before {              /* score-colored edge */
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--band, var(--wind));
  box-shadow: 0 0 18px -2px var(--band, var(--wind));
}
@keyframes rise { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .seg { animation: none; opacity: 1; transform: none; }
}

.seg__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.seg__name {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1.0;
  letter-spacing: 0.01em;
}
.seg__meta { margin: 6px 0 0; color: var(--muted); font-size: 0.82rem; }

/* score gauge */
.gauge { flex: none; width: 76px; height: 76px; position: relative; display: grid; place-items: center; }
.gauge svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.gauge__num { font-family: var(--display); font-weight: 800; font-size: 1.5rem; line-height: 1; color: var(--band, var(--wind)); }
.gauge__lbl { position: absolute; bottom: -2px; font-family: var(--mono); font-size: 0.5rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faint); }

/* body: compass + readouts */
.seg__body { display: flex; align-items: center; gap: 16px; margin-top: 14px; }
.compass { flex: none; width: 84px; height: 84px; }
.readouts { display: grid; grid-template-columns: 1fr; gap: 8px; flex: 1; min-width: 0; }
.ro { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding-bottom: 7px; border-bottom: 1px solid var(--line-soft); }
.ro:last-child { border-bottom: 0; padding-bottom: 0; }
.ro__k { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.ro__v { font-family: var(--mono); font-weight: 700; font-size: 0.96rem; color: var(--text); text-align: right; }
.ro__v small { color: var(--faint); font-weight: 400; font-size: 0.72em; }
.ro__v.is-tail { color: var(--wind); }

.seg__explain { margin: 14px 0 0; color: #cfe0e6; font-size: 0.92rem; line-height: 1.45; }

/* confidence */
.conf { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.conf__k { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); white-space: nowrap; }
.conf__bar { flex: 1; height: 5px; border-radius: 99px; background: var(--ink); overflow: hidden; }
.conf__bar > i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--air), var(--wind)); }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: #b9d2dc;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(86, 199, 255, 0.08);
  border: 1px solid var(--line-soft);
}
.chip.is-hazard { color: #ffd0d8; background: rgba(255, 84, 112, 0.14); border-color: rgba(255,84,112,0.3); }

.placeholder { padding: 28px 18px; text-align: center; color: var(--muted); background: var(--surface); border: 1px dashed var(--line); border-radius: var(--r-lg); }

/* ---------- larger screens ---------- */
@media (min-width: 720px) {
  .shell { padding: 32px 28px 90px; }
  .panel { padding: 26px 24px; }
  .map { height: 380px; }
  .map-actions .btn { min-width: 200px; }
  .bounds { grid-template-columns: repeat(4, 1fr); }
  .btn--primary { width: auto; min-width: 240px; }
  .seg { padding: 22px 22px 20px; }
  .seg__name { font-size: 1.6rem; }
  .gauge { width: 84px; height: 84px; }
  .gauge__num { font-size: 1.7rem; }
  .seg__body { gap: 22px; }
  .readouts { grid-template-columns: repeat(3, 1fr); }
  .ro { flex-direction: column; align-items: flex-start; gap: 4px; border-bottom: 0; padding: 0; }
  .ro__v { text-align: left; }
}