:root {
  --bg: #0c1210;
  --bg-elev: #121a17;
  --panel: rgba(12, 18, 16, 0.88);
  --line: rgba(232, 220, 200, 0.12);
  --text: #e8ece6;
  --muted: #8a968c;
  --teal: #3d9b7a;
  --teal-bright: #5ec4a0;
  --amber: #e8b86d;
  --coral: #f07178;
  --radius: 14px;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --display: "Sora", system-ui, sans-serif;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 0.65rem 1.15rem;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(232, 220, 200, 0.22);
}

.btn:active {
  transform: translateY(1px);
}

.btn.primary {
  background: linear-gradient(135deg, var(--teal), #2a7a5e);
  border-color: transparent;
  color: #04110c;
  font-weight: 600;
}

.btn.primary:hover {
  filter: brightness(1.08);
}

.btn.accent {
  background: rgba(232, 184, 109, 0.16);
  border-color: rgba(232, 184, 109, 0.35);
  color: var(--amber);
}

.btn.ghost {
  background: transparent;
}

.btn.sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.86rem;
}

.btn.block {
  width: 100%;
}

.btn[aria-pressed="true"] {
  background: rgba(61, 155, 122, 0.25);
  border-color: var(--teal);
  color: var(--teal-bright);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Landing */
.landing {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem 3rem;
  position: relative;
  overflow: hidden;
}

.landing-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(61, 155, 122, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 80%, rgba(232, 184, 109, 0.12), transparent 50%),
    linear-gradient(165deg, #0a100e 0%, #0c1210 40%, #101816 100%);
  animation: drift 18s ease-in-out infinite alternate;
}

.landing-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  animation: grid-pulse 8s ease-in-out infinite;
}

@keyframes drift {
  from { transform: scale(1) translate(0, 0); }
  to { transform: scale(1.06) translate(-1.5%, 1%); }
}

@keyframes grid-pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 0.9; }
}

.landing-inner {
  position: relative;
  max-width: 640px;
  width: 100%;
  animation: rise 0.7s ease-out both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.brand {
  font-family: var(--display);
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin: 0 0 0.75rem;
  background: linear-gradient(120deg, var(--text) 20%, var(--teal-bright) 55%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.landing h1 {
  font-family: var(--display);
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.85rem;
  max-width: 18ch;
  line-height: 1.25;
}

.lead {
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 46ch;
}

.dropzone {
  border: 1px dashed rgba(94, 196, 160, 0.35);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.5rem 1.35rem;
  background: rgba(8, 14, 12, 0.55);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: stretch;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.drop-title {
  margin: 0;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--teal-bright);
}

.drop-sub {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.drop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.dropzone.drag {
  border-color: var(--amber);
  background: rgba(232, 184, 109, 0.08);
  box-shadow: 0 0 0 4px rgba(232, 184, 109, 0.12);
}

.studio-head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.hint {
  width: 100%;
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.status {
  width: 100%;
  margin: 0.25rem 0 0;
  font-size: 0.88rem;
  color: var(--teal-bright);
}

.status[data-state="error"] {
  color: var(--coral);
}

.features {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.features li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.features li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* App shell */
.app {
  position: relative;
  height: 100dvh;
  overflow: hidden;
}

.map {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #0a100e;
}

.leaflet-container {
  background: #0a100e;
  font: inherit;
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  padding-top: max(0.85rem, env(safe-area-inset-top));
  background: linear-gradient(to bottom, rgba(12, 18, 16, 0.92), rgba(12, 18, 16, 0.35), transparent);
  pointer-events: none;
}

.topbar > * {
  pointer-events: auto;
}

.topbar-brand {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font-family: var(--display);
  min-width: 0;
}

.topbar-brand .mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 12px var(--teal);
  align-self: center;
  flex-shrink: 0;
}

.topbar-brand small {
  font-family: var(--font);
  font-weight: 400;
  color: var(--muted);
  font-size: 0.78rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 28vw;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  position: relative;
  justify-content: flex-end;
}

.more-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  z-index: 520;
  min-width: 168px;
  padding: 0.35rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.more-menu[hidden] {
  display: none !important;
}

.more-item {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.more-item:hover,
.more-item:focus-visible {
  background: rgba(61, 155, 122, 0.15);
  outline: none;
}

.more-item[aria-pressed="true"] {
  color: var(--teal-bright);
  background: rgba(61, 155, 122, 0.2);
}

.panel-backdrop {
  display: none;
}

.panel {
  position: absolute;
  z-index: 500;
  left: 1rem;
  bottom: 1rem;
  width: min(360px, calc(100vw - 2rem));
  max-height: min(62vh, 560px);
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  padding: 0.85rem;
  animation: panel-in 0.45s ease-out both;
}

.panel-handle {
  display: none;
}

.panel-scroll {
  overflow: auto;
  min-height: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.panel-scroll .stats {
  margin-bottom: 0.75rem;
}

.panel-scroll .panel-tabs {
  margin-bottom: 0.75rem;
}

.date-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.stats > div {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  padding: 0.55rem 0.6rem;
}

.stats .wide {
  grid-column: 1 / -1;
}

.stats span {
  display: block;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.stats label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.panel-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.25rem;
  background: rgba(0, 0, 0, 0.25);
  padding: 0.25rem;
  border-radius: 10px;
}

.panel-tabs button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.45rem;
  border-radius: 8px;
  font-size: 0.85rem;
}

.panel-tabs button[aria-selected="true"] {
  background: rgba(61, 155, 122, 0.2);
  color: var(--teal-bright);
}

.panel-body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.field.inline {
  flex: 1;
}

.field-label {
  font-size: 0.82rem;
  color: var(--muted);
}

.field input,
.field select {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  color: var(--text);
}

.field input:focus,
.field select:focus {
  outline: 2px solid rgba(61, 155, 122, 0.45);
  outline-offset: 1px;
}

.checks {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 140px;
  overflow: auto;
}

.check {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.45rem;
  align-items: center;
  font-size: 0.86rem;
  color: var(--text);
  padding: 0.25rem 0;
}

.check em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.78rem;
}

.row {
  display: flex;
  gap: 0.55rem;
  align-items: end;
}

.play-label {
  margin: 0;
  font-family: var(--display);
  font-size: 0.95rem;
}

#play-range,
#studio-trail,
#studio-progress {
  width: 100%;
  accent-color: var(--teal);
}

.visit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 280px;
  overflow: auto;
}

.visit-list li {
  padding: 0.55rem 0.4rem;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-radius: 8px;
}

.visit-list li:hover {
  background: rgba(61, 155, 122, 0.1);
}

.visit-list strong {
  font-size: 0.9rem;
}

.visit-list span {
  font-size: 0.78rem;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

/* Studio */
.loader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  background: rgba(4, 8, 6, 0.78);
  backdrop-filter: blur(8px);
  padding: 1.25rem;
}

.loader[hidden] {
  display: none !important;
}

.loader-card {
  width: min(420px, 100%);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.loader-brand {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  color: var(--teal-bright);
  font-size: 1.1rem;
}

.loader-text {
  margin: 0.65rem 0 0.85rem;
  font-size: 0.98rem;
}

.loader-detail {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

#loader-bar {
  width: 100%;
  height: 8px;
  accent-color: var(--teal);
}

.studio {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 8, 6, 0.72);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  padding: 1rem;
  animation: fade 0.25s ease;
}

@keyframes fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.studio-card {
  width: min(1100px, 100%);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1rem 1.15rem 1.25rem;
  max-height: 96dvh;
  overflow: auto;
}

.studio-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.studio-head h2 {
  font-family: var(--display);
  margin: 0.15rem 0 0;
  font-size: 1.25rem;
}

.kicker {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
}

.studio-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
}

#studio-canvas {
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #050807;
  border: 1px solid var(--line);
}

.studio-controls {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

@media (max-width: 860px) {
  .studio-grid {
    grid-template-columns: 1fr;
  }

  .studio {
    padding: 0;
    align-items: stretch;
  }

  .studio-card {
    width: 100%;
    max-height: 100dvh;
    border-radius: 0;
    padding: 1rem 1rem max(1rem, env(safe-area-inset-bottom));
  }

  .topbar {
    padding: 0.65rem 0.75rem;
    padding-top: max(0.65rem, env(safe-area-inset-top));
    gap: 0.45rem;
  }

  .topbar-brand strong {
    font-size: 0.95rem;
  }

  .topbar-actions {
    flex-wrap: nowrap;
    gap: 0.3rem;
  }

  .topbar-actions .btn.sm {
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
  }

  .panel-backdrop {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 540;
    background: rgba(0, 0, 0, 0.45);
    border: 0;
    padding: 0;
    animation: fade 0.2s ease;
  }

  .panel-backdrop[hidden] {
    display: none !important;
  }

  .panel {
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-height: min(78dvh, 640px);
    border-radius: 18px 18px 0 0;
    padding: 0.35rem 1rem max(0.85rem, env(safe-area-inset-bottom));
    z-index: 550;
    transform: translateY(calc(100% - 72px));
    transition: transform 0.28s ease;
    animation: none;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.45);
  }

  .panel.panel-open {
    transform: translateY(0);
  }

  .panel-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    border: 0;
    background: transparent;
    padding: 0.45rem 0 0.35rem;
    flex-shrink: 0;
  }

  .panel-handle-bar {
    width: 40px;
    height: 4px;
    border-radius: 999px;
    background: rgba(232, 220, 200, 0.35);
  }

  .panel-peek {
    display: none;
    margin: 0 0 0.35rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.82rem;
  }

  .panel:not(.panel-open) .panel-peek {
    display: block;
  }

  .panel:not(.panel-open) .panel-scroll {
    display: none;
  }

  .panel.panel-open .panel-peek {
    display: none !important;
  }

  .landing h1 {
    max-width: none;
  }

  .leaflet-bottom.leaflet-right {
    bottom: 80px;
  }
}

.panel-peek {
  display: none;
}

@media (min-width: 861px) {
  #btn-panel-toggle {
    display: none;
  }

  .panel-backdrop {
    display: none !important;
  }

  .panel {
    transform: none !important;
  }
}

/* Leaflet popup polish */
.leaflet-popup-content-wrapper {
  background: #121a17;
  color: var(--text);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.leaflet-popup-tip {
  background: #121a17;
}

.leaflet-control-attribution {
  background: rgba(12, 18, 16, 0.7) !important;
  color: var(--muted) !important;
  font-size: 10px !important;
}

.leaflet-control-attribution a {
  color: var(--teal-bright) !important;
}