/* ============================================================
   SafeRoute — style.css
   Aesthetic: Deep-space navigation HUD
   Palette: #020b18 base · #0a1628 panels · #00d4ff neon blue
            #3dd68c green accent · #ffffff labels
   Font: DM Sans + DM Mono
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap");

/* ── Reset & base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-deep: #020b18;
  --bg-panel: #060f1e;
  --bg-card: rgba(6, 18, 38, 0.82);
  --border: rgba(0, 180, 255, 0.12);
  --border-glow: rgba(0, 212, 255, 0.35);
  --accent-blue: #00d4ff;
  --accent-green: #3dd68c;
  --accent-red: #ff4f6a;
  --accent-amber: #f7a84f;
  --text-primary: #e8f4ff;
  --text-muted: #5b7a99;
  --text-label: #8ba8c4;
  --route-safe: #3dd68c;
  --route-short: #4f8ef7;
  --neon-glow: 0 0 12px rgba(0, 212, 255, 0.6), 0 0 40px rgba(0, 212, 255, 0.2);
  --green-glow: 0 0 12px rgba(61, 214, 140, 0.5),
    0 0 30px rgba(61, 214, 140, 0.15);
  --panel-shadow: 0 8px 48px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--border);
  --font-ui: "DM Sans", system-ui, sans-serif;
  --font-mono: "DM Mono", monospace;
}

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 14px;
  letter-spacing: 0.01em;
}

/* ── Map fills the viewport ───────────────────────────────── */
#map {
  position: fixed;
  inset: 0;
  z-index: 1;
}

/* Apply the blue tint ONLY to map tiles */
.leaflet-tile-pane {
  filter: hue-rotate(195deg) saturate(0.6) brightness(0.5);
}

/* Subtle dark vignette overlay */
#map::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 60% 40%,
    rgba(0, 40, 100, 0.3) 0%,
    rgba(2, 11, 24, 0.45) 100%
  );
  pointer-events: none;
  z-index: 10;
}

/* ── Sidebar ──────────────────────────────────────────────── */
aside {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 340px;
  background: linear-gradient(
    180deg,
    rgba(6, 15, 35, 0.97) 0%,
    rgba(2, 8, 20, 0.99) 100%
  );
  border-right: 1px solid var(--border);
  box-shadow: 4px 0 60px rgba(0, 0, 0, 0.8),
    inset -1px 0 0 rgba(0, 212, 255, 0.06);
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 212, 255, 0.15) transparent;
  background-image: linear-gradient(
      180deg,
      rgba(6, 15, 35, 0.97) 0%,
      rgba(2, 8, 20, 0.99) 100%
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(0, 212, 255, 0.015) 3px,
      rgba(0, 212, 255, 0.015) 4px
    );
  animation: slide-in 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}

aside::-webkit-scrollbar {
  width: 4px;
}
aside::-webkit-scrollbar-track {
  background: transparent;
}
aside::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.2);
  border-radius: 2px;
}

/* ── Header ───────────────────────────────────────────────── */
header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 212, 255, 0.03);
  overflow: hidden;
}

header::before,
header::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--accent-blue);
  border-style: solid;
  opacity: 0.6;
}
header::before {
  top: 8px;
  left: 10px;
  border-width: 1px 0 0 1px;
}
header::after {
  bottom: 8px;
  right: 10px;
  border-width: 0 1px 1px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, #00d4ff 0%, #0084a8 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--neon-glow);
  flex-shrink: 0;
}
.logo-icon svg {
  width: 16px;
  height: 16px;
  fill: #020b18;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.logo-text span {
  color: var(--accent-blue);
}

.header-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: rgba(0, 212, 255, 0.06);
}

/* ── HUD row ──────────────────────────────────────────────── */
.hud-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
.hud-cell {
  background: rgba(2, 10, 24, 0.9);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.hud-cell-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hud-cell-value {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent-blue);
  line-height: 1;
  text-shadow: var(--neon-glow);
  transition: all 0.4s ease;
}
.hud-cell-value.green {
  color: var(--accent-green);
  text-shadow: var(--green-glow);
}
.hud-cell-value.dim {
  color: var(--text-label);
  text-shadow: none;
  font-size: 0.95rem;
}

/* ── Panels ───────────────────────────────────────────────── */
.panel {
  margin: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s;
}
.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-blue),
    transparent
  );
  opacity: 0.4;
}
.panel:hover {
  border-color: rgba(0, 212, 255, 0.22);
}

.panel-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.panel-title::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: var(--neon-glow);
  flex-shrink: 0;
}

/* ── Inputs ───────────────────────────────────────────────── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.input-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: relative;
}
.input-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.input-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0.3;
  animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.4);
    opacity: 0.1;
  }
}

input[type="text"] {
  flex: 1;
  background: rgba(0, 20, 50, 0.6);
  border: 1px solid rgba(0, 180, 255, 0.15);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  caret-color: var(--accent-blue);
}
input[type="text"]:focus {
  border-color: rgba(0, 212, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08),
    inset 0 0 20px rgba(0, 212, 255, 0.04);
  background: rgba(0, 30, 65, 0.7);
}
input::placeholder {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.connector-line {
  height: 1px;
  margin: 0 1.5rem;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 212, 255, 0.2),
    transparent
  );
  position: relative;
}
.connector-line::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(0, 212, 255, 0.4);
}

/* ── Route button ─────────────────────────────────────────── */
.btn-route {
  width: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.15) 0%,
    rgba(0, 120, 180, 0.15) 100%
  );
  border: 1px solid rgba(0, 212, 255, 0.35);
  color: var(--accent-blue);
  padding: 1rem;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.btn-route::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), transparent);
  opacity: 0;
  transition: opacity 0.25s;
}
.btn-route:hover {
  border-color: rgba(0, 212, 255, 0.7);
  box-shadow: var(--neon-glow), inset 0 0 20px rgba(0, 212, 255, 0.05);
  color: #fff;
  transform: translateY(-1px);
}
.btn-route:hover::before {
  opacity: 1;
}
.btn-route:active {
  transform: translateY(0);
}
.btn-route.loading {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

.spinner {
  width: 14px;
  height: 14px;
  border: 1.5px solid rgba(0, 212, 255, 0.3);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── Filter panel ─────────────────────────────────────────── */
.filter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  gap: 0.75rem;
}
.filter-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 72px;
}
.filter-select {
  flex: 1;
  background: rgba(0, 20, 50, 0.7);
  border: 1px solid rgba(0, 180, 255, 0.18);
  border-radius: 7px;
  padding: 0.55rem 0.8rem;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%235b7a99'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  padding-right: 2rem;
}
.filter-select:focus {
  border-color: rgba(0, 212, 255, 0.45);
}
.filter-select option {
  background: #060f1e;
  color: #e8f4ff;
}

.btn-filter {
  flex: 1;
  background: linear-gradient(
    135deg,
    rgba(0, 212, 255, 0.15) 0%,
    rgba(0, 120, 180, 0.12) 100%
  );
  border: 1px solid rgba(0, 212, 255, 0.35);
  color: var(--accent-blue);
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-filter:hover {
  border-color: rgba(0, 212, 255, 0.7);
  color: #fff;
  box-shadow: var(--neon-glow);
}
.btn-filter-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}
.btn-filter-ghost:hover {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text-label);
  box-shadow: none;
}

/* ── Route cards ──────────────────────────────────────────── */
#routeCards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.route-card {
  background: rgba(0, 18, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  border-left-width: 3px;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}
.route-card:hover {
  background: rgba(0, 30, 65, 0.8);
}
.route-card-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}
.route-card-meta {
  font-size: 0.82rem;
  color: var(--text-label);
  margin-top: 0.25rem;
}
.route-card-risk {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

/* ── Risk station list ────────────────────────────────────── */
#blackspotList .bs-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(0, 212, 255, 0.06);
  font-size: 0.82rem;
  color: var(--text-label);
}
#blackspotList .bs-item:last-child {
  border-bottom: none;
}
.bs-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.bs-pct {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

/* ── Empty state ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.6;
  padding: 1.5rem 0.5rem;
}

/* ── Legend ───────────────────────────────────────────────── */
.legend-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0;
  font-size: 0.82rem;
  color: var(--text-label);
  border-bottom: 1px solid rgba(0, 212, 255, 0.05);
}
.legend-item:last-child {
  border-bottom: none;
}
.legend-line {
  width: 20px;
  height: 3px;
  border-radius: 2px;
  flex-shrink: 0;
}
.legend-circle {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Toast ────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 0.9rem 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--border-glow);
  box-shadow: var(--neon-glow), 0 20px 60px rgba(0, 0, 0, 0.5);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 9999;
  pointer-events: none;
  max-width: 320px;
}
#toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ── Leaflet popup overrides ──────────────────────────────── */
.leaflet-popup-content-wrapper {
  background: rgba(4, 14, 32, 0.95) !important;
  border: 1px solid var(--border-glow) !important;
  border-radius: 10px !important;
  box-shadow: var(--neon-glow) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-ui) !important;
  font-size: 0.82rem !important;
  backdrop-filter: blur(16px) !important;
}
.leaflet-popup-tip {
  background: rgba(4, 14, 32, 0.95) !important;
}
.leaflet-popup-content b {
  color: var(--accent-blue);
  font-weight: 500;
  display: block;
  margin-bottom: 0.2rem;
}

.leaflet-tooltip {
  background: rgba(2, 11, 24, 0.92) !important;
  border: 1px solid var(--border-glow) !important;
  border-radius: 6px !important;
  color: var(--text-primary) !important;
  font-family: var(--font-mono) !important;
  font-size: 0.72rem !important;
  letter-spacing: 0.06em !important;
  box-shadow: var(--neon-glow) !important;
  padding: 0.3rem 0.65rem !important;
}
.leaflet-tooltip::before {
  display: none !important;
}

.leaflet-control-zoom a {
  background: var(--bg-panel) !important;
  border-color: var(--border) !important;
  color: var(--accent-blue) !important;
  font-family: var(--font-mono) !important;
}
.leaflet-control-zoom a:hover {
  background: rgba(0, 212, 255, 0.1) !important;
  color: #fff !important;
}
.leaflet-control-attribution {
  background: rgba(2, 11, 24, 0.7) !important;
  color: var(--text-muted) !important;
  font-size: 0.6rem !important;
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes slide-in {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel:nth-child(1) {
  animation: fade-up 0.5s 0.15s both;
}
.panel:nth-child(2) {
  animation: fade-up 0.5s 0.25s both;
}
.panel:nth-child(3) {
  animation: fade-up 0.5s 0.35s both;
}
.panel:nth-child(4) {
  animation: fade-up 0.5s 0.45s both;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 480px) {
  aside {
    width: 100%;
    bottom: 0;
    top: auto;
    height: 55vh;
    border-right: none;
    border-top: 1px solid var(--border);
  }
  #map {
    height: 45vh;
  }
}