:root {
  color-scheme: dark;
  --ink: #f7f3eb;
  --muted: #b9b2a7;
  --panel: #181b22;
  --panel-raised: #222630;
  --line: #363c48;
  --sky: #61d4e8;
  --sun: #ffc85a;
  --coral: #ff806c;
  --green: #65e19b;
  --purple: #a78bfa;
  --shadow: 0 18px 55px rgb(0 0 0 / 0.32);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0e1117;
  color: var(--ink);
}

* { box-sizing: border-box; }

body { margin: 0; min-width: 320px; background: #0e1117; }

button, input { font: inherit; }

button {
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: #292e39;
  color: var(--ink);
  padding: 0.68rem 0.85rem;
  cursor: pointer;
  font-weight: 700;
}

button:hover:not(:disabled) { border-color: var(--sky); background: #303743; }
button:focus-visible, input:focus-visible, summary:focus-visible, a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--sky) 65%, transparent);
  outline-offset: 2px;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.primary { background: var(--sky); border-color: var(--sky); color: #06161b; width: 100%; }
button.primary:hover:not(:disabled) { background: #8be4f2; }

.site-header {
  min-height: 5.3rem;
  padding: 1rem clamp(1rem, 3vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid #242934;
  background: linear-gradient(135deg, #131823, #141923 55%, #211827);
}

.site-header h1 { margin: 0.05rem 0 0; font-size: clamp(1.35rem, 3vw, 2rem); letter-spacing: -0.025em; }
.eyebrow { margin: 0; color: var(--sky); text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.72rem; font-weight: 850; }
.clock { margin: 0; font-variant-numeric: tabular-nums; font-size: 1rem; color: var(--muted); }
.header-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; justify-content: flex-end; }
.theme-switch { min-width: 7.6rem; }

.advisory {
  padding: 0.75rem clamp(1rem, 3vw, 2.5rem);
  background: #2b2212;
  border-bottom: 1px solid #675025;
  color: #f6e7bf;
  font-size: 0.9rem;
  line-height: 1.45;
}

.advisory strong { color: #fff4d3; }

.planner-shell {
  display: grid;
  grid-template-columns: minmax(19rem, 25rem) minmax(0, 1fr);
  min-height: calc(100vh - 11rem);
}

.planner-panel {
  background: var(--panel);
  border-right: 1px solid #303541;
  overflow-y: auto;
  max-height: calc(100vh - 8rem);
}

.panel-section { padding: 1.1rem 1.15rem 1.25rem; border-bottom: 1px solid #2d323d; }
.section-heading { display: grid; grid-template-columns: 1.8rem 1fr; gap: 0.65rem; align-items: start; margin-bottom: 0.9rem; }
.section-heading > span {
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #303743;
  color: var(--sky);
  font-size: 0.8rem;
  font-weight: 850;
}
.section-heading h2 { margin: 0; font-size: 1rem; }
.section-heading p { margin: 0.22rem 0 0; color: var(--muted); font-size: 0.8rem; line-height: 1.35; }
.split-heading { grid-template-columns: 1.8rem 1fr auto; }

.button-row { display: flex; gap: 0.55rem; flex-wrap: wrap; }
.status { min-height: 1.25rem; margin: 0.7rem 0 0; color: var(--muted); font-size: 0.82rem; line-height: 1.45; }
.status.error { color: #ffaaa0; }
.status.good { color: #9be5bb; }
.route-strategy { margin: 0.7rem 0 0; padding: 0.7rem 0.8rem; border: 1px solid #655a84; border-radius: 0.65rem; background: #1d1928; color: #d9cdf7; font-size: 0.8rem; line-height: 1.4; font-weight: 750; }
.search-limits { margin: 0.75rem 0 0; padding: 0.65rem 0.75rem; border-left: 3px solid var(--purple); background: color-mix(in srgb, var(--purple) 9%, transparent); color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 0.75rem; line-height: 1.45; }

.field { display: grid; gap: 0.36rem; margin-top: 0.75rem; color: var(--muted); font-size: 0.78rem; font-weight: 700; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
input[type="text"], input[type="number"], input[type="datetime-local"] {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  padding: 0.68rem 0.75rem;
  background: #11151c;
  color: var(--ink);
}
.input-with-unit { display: grid; grid-template-columns: 1fr auto; align-items: center; border: 1px solid var(--line); border-radius: 0.6rem; background: #11151c; }
.input-with-unit input { border: 0; background: transparent; }
.input-with-unit i { font-style: normal; padding-right: 0.7rem; color: #8e97a7; font-weight: 650; white-space: nowrap; }

.range-field { display: grid; gap: 0.55rem; font-size: 0.78rem; color: var(--muted); }
.range-field > span { display: flex; justify-content: space-between; gap: 0.5rem; }
.range-field strong { color: var(--sky); }
input[type="range"] { accent-color: var(--sky); width: 100%; }

.switch { display: grid; grid-template-columns: 2.5rem auto; grid-template-rows: 1.25rem; gap: 0.35rem; align-items: center; cursor: pointer; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch > span { grid-column: 1; width: 2.5rem; height: 1.25rem; border-radius: 1rem; background: #49505d; position: relative; transition: 140ms ease; }
.switch > span::after { content: ""; position: absolute; width: 0.9rem; height: 0.9rem; top: 0.175rem; left: 0.2rem; background: white; border-radius: 50%; transition: 140ms ease; }
.switch input:checked + span { background: #1e8899; }
.switch input:checked + span::after { transform: translateX(1.2rem); }
.switch b { grid-column: 2; font-size: 0.7rem; color: var(--muted); }

details { border: 1px solid var(--line); border-radius: 0.65rem; background: #12161d; padding: 0.65rem 0.75rem; }
summary { cursor: pointer; font-weight: 750; font-size: 0.82rem; }
.chart-key { display: grid; gap: 0.5rem; margin: 0.75rem 0; }
.chart-key div { display: grid; grid-template-columns: 1rem 1fr; gap: 0.55rem; align-items: start; }
.chart-key dd, .chart-key dt { margin: 0; }
.chart-key dd { color: var(--muted); font-size: 0.75rem; line-height: 1.35; }
.swatch { width: 0.9rem; height: 0.9rem; border: 2px solid; border-radius: 0.2rem; }
.swatch.controlled { border-color: #8d7ee8; background: #5b4ca355; }
.swatch.restricted { border-color: #ff6666; background: #b62f3555; }
.swatch.special { border-color: #ffbd59; background: #bd842e55; }
.swatch.boundary { border-color: #c3ccd8; background: repeating-linear-gradient(45deg, transparent, transparent 2px, #c3ccd8 2px, #c3ccd8 3px); }

.generate-section { background: #1b2029; }
.code-result { margin-top: 0.85rem; padding: 0.85rem; border-radius: 0.7rem; border: 1px solid #3d5360; background: #111a21; }
.code-result > span { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; }
.code-result > div { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; margin: 0.3rem 0 0.65rem; }
.code-result code { color: var(--sky); font-size: 1.5rem; letter-spacing: 0.12em; font-weight: 850; }
.code-result a { color: var(--sky); font-weight: 750; }

.map-shell { position: relative; min-height: 42rem; background: #11141a; overflow: hidden; }
.map { position: absolute; inset: 0; }
.map-prompt, .forecast-summary, .map-legend, .map-status {
  position: absolute;
  z-index: 2;
  background: rgb(17 21 28 / 0.93);
  border: 1px solid #3d4553;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}
.map-prompt { left: 50%; top: 1rem; transform: translateX(-50%); border-radius: 2rem; padding: 0.65rem 1rem; font-size: 0.82rem; font-weight: 750; }
.map-status { left: 1rem; top: 1rem; border-radius: 0.7rem; padding: 0.48rem 0.65rem; display: flex; align-items: center; gap: 0.55rem; color: var(--muted); font-size: 0.72rem; }
.map-status.good { color: #9be5bb; }
.map-status.error { color: #ffaaa0; border-color: #8f4844; }
.map-status button { padding: 0.28rem 0.5rem; font-size: 0.68rem; }
.forecast-summary { top: 1rem; right: 1rem; border-radius: 0.75rem; padding: 0.7rem 0.85rem; display: grid; gap: 0.15rem; }
.forecast-summary strong { color: var(--sky); }
.forecast-summary span { color: var(--muted); font-size: 0.72rem; }
.map-legend { left: 1rem; bottom: 1.25rem; border-radius: 0.7rem; padding: 0.7rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 0.8rem; font-size: 0.7rem; color: #d7dce5; }
.map-legend span { display: flex; align-items: center; gap: 0.4rem; }
.legend-dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; border: 2px solid #11151c; box-shadow: 0 0 0 1px currentColor; }
.legend-dot.launch { background: var(--sky); color: var(--sky); }
.legend-dot.forecast { background: var(--sun); color: var(--sun); }
.legend-dot.intended { background: var(--green); color: var(--green); }
.legend-line { width: 1.4rem; height: 0.25rem; border-radius: 1rem; background: linear-gradient(90deg, #4ea5ff, #55e1d2, #ffd45e, #ff6f8c); }
.legend-envelope { width: 1.4rem; height: 0.65rem; border: 2px dashed var(--purple); background: color-mix(in srgb, var(--purple) 18%, transparent); }

.map-marker { width: 1.2rem; height: 1.2rem; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); border: 2px solid #10141a; box-shadow: 0 2px 8px rgb(0 0 0 / 0.45); }
.map-marker.launch { background: var(--sky); }
.map-marker.forecast { background: var(--sun); }
.map-marker.intended { background: var(--green); }

.wind-marker { color: white; display: grid; place-items: center; filter: drop-shadow(0 1px 2px #000); pointer-events: none; }
.wind-marker .arrow { font-size: 1.45rem; line-height: 1; color: #f7f3eb; transform-origin: center; }
.wind-marker .speed { margin-top: -0.08rem; padding: 0.05rem 0.28rem; border-radius: 0.5rem; background: rgb(10 13 18 / 0.82); font-size: 0.62rem; font-weight: 850; font-variant-numeric: tabular-nums; }

.maplibregl-ctrl-group { background: #20252e; }
.maplibregl-ctrl-group button { background: transparent; border: 0; border-radius: 0; }
.maplibregl-ctrl-group button .maplibregl-ctrl-icon { filter: invert(1); }
.maplibregl-ctrl-attrib { background: rgb(17 21 28 / 0.88) !important; color: #d8dce3; }
.maplibregl-ctrl-attrib a { color: #a7e9f4; }

footer { min-height: 2.7rem; padding: 0.75rem 1rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: #858e9d; font-size: 0.68rem; border-top: 1px solid #272c36; }

:root[data-theme="light"] {
  color-scheme: light;
  --ink: #24212a;
  --muted: #655f69;
  --panel: #f7f4ef;
  --panel-raised: #eee9e2;
  --line: #c8c0b8;
  --sky: #087f96;
  --sun: #a66a00;
  --green: #16784a;
  --purple: #6650a4;
  --shadow: 0 16px 45px rgb(41 34 31 / 0.18);
  background: #e8e4de;
}

:root[data-theme="light"] body { background: #e8e4de; }
:root[data-theme="light"] button { background: #e5dfd7; }
:root[data-theme="light"] button:hover:not(:disabled) { background: #d9e9ec; }
:root[data-theme="light"] .site-header { background: linear-gradient(135deg, #f7f4ef, #eef4f5 55%, #eee8f4); border-color: #d2cbc4; }
:root[data-theme="light"] .advisory { background: #fff3d8; border-color: #d6b66d; color: #5c4616; }
:root[data-theme="light"] .advisory strong { color: #3b2d0d; }
:root[data-theme="light"] .planner-panel { border-color: #cbc4bc; }
:root[data-theme="light"] .panel-section { border-color: #d7d0c8; }
:root[data-theme="light"] .section-heading > span { background: #dce7e9; }
:root[data-theme="light"] input[type="text"],
:root[data-theme="light"] input[type="number"],
:root[data-theme="light"] input[type="datetime-local"],
:root[data-theme="light"] .input-with-unit { background: #ffffff; }
:root[data-theme="light"] details { background: #ffffff; }
:root[data-theme="light"] .generate-section { background: #eee9e2; }
:root[data-theme="light"] .code-result { background: #f8fbfc; }
:root[data-theme="light"] .route-strategy { background: #eee9f7; color: #493b72; border-color: #a89acb; }
:root[data-theme="light"] .status.good,
:root[data-theme="light"] .map-status.good { color: #14683f; }
:root[data-theme="light"] .status.error,
:root[data-theme="light"] .map-status.error { color: #a22929; }
:root[data-theme="light"] .map-status.error { border-color: #b75b55; }
:root[data-theme="light"] .map-shell { background: #e2e6e9; }
:root[data-theme="light"] .map-prompt,
:root[data-theme="light"] .forecast-summary,
:root[data-theme="light"] .map-legend,
:root[data-theme="light"] .map-status { background: rgb(255 255 255 / 0.92); color: #49434d; }
:root[data-theme="light"] .map-legend { color: #3b3640; }
:root[data-theme="light"] .maplibregl-ctrl-group { background: #ffffff; }
:root[data-theme="light"] .maplibregl-ctrl-group button .maplibregl-ctrl-icon { filter: none; }
:root[data-theme="light"] .maplibregl-ctrl-attrib { background: rgb(255 255 255 / 0.9) !important; color: #45404a; }
:root[data-theme="light"] .maplibregl-ctrl-attrib a { color: #176b7a; }
:root[data-theme="light"] footer { color: #635d67; border-color: #cbc4bc; }

@media (max-width: 850px) {
  .planner-shell { grid-template-columns: 1fr; }
  .planner-panel { max-height: none; border-right: 0; }
  .map-shell { min-height: 70vh; }
}

@media (max-width: 460px) {
  .site-header { align-items: flex-start; }
  .header-actions { display: grid; justify-items: end; gap: 0.45rem; }
  .field-grid { grid-template-columns: 1fr; }
  .map-legend { right: 0.65rem; left: 0.65rem; bottom: 0.65rem; }
  .forecast-summary { top: 3.8rem; right: 0.65rem; }
  .map-prompt { width: calc(100% - 1.3rem); text-align: center; }
}