/* Custom styling and Emergency Alert animations */

@import url('https://fonts.googleapis.com/css2?family=Prompt:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Kanit:wght@400;600;700&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  --danger-red: #ef4444;
  --warning-amber: #f59e0b;
  --water-blue: #0284c7;
  --bg-dark: #090d16;
}

html {
  width: 100%;
  box-sizing: border-box;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: 'Prompt', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: #f1f5f9;
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden; /* Fallback for older browsers */
  overflow-x: clip;   /* Modern standard: clips horizontal overflow without breaking position: sticky */
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
  -webkit-font-smoothing: antialiased;
}

button, a, input, select {
  touch-action: manipulation;
}

.font-mono-numbers {
  font-family: 'JetBrains Mono', monospace;
}

/* ========================================================
   EMERGENCY ALERT (TIER 3 - RED FLASHING SCREEN)
   ======================================================== */
body.emergency-active {
  animation: emergency-bg-breathe 2.4s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes emergency-bg-breathe {
  0% {
    background-color: #120303;
    box-shadow: inset 0 0 80px rgba(239, 68, 68, 0.25);
  }
  50% {
    background-color: #240606;
    box-shadow: inset 0 0 160px rgba(239, 68, 68, 0.55);
  }
  100% {
    background-color: #120303;
    box-shadow: inset 0 0 80px rgba(239, 68, 68, 0.25);
  }
}

.emergency-border-pulse {
  animation: border-pulse 1.8s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes border-pulse {
  0% {
    border-color: rgba(239, 68, 68, 0.4);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
  }
  50% {
    border-color: rgba(254, 202, 202, 0.95);
    box-shadow: 0 0 35px rgba(239, 68, 68, 0.75);
  }
  100% {
    border-color: rgba(239, 68, 68, 0.4);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
  }
}

/* Emergency Alert: Soft Ambient Breathing Neon Glow */
.emergency-banner-flash {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.98), rgba(153, 27, 27, 0.98));
  border-bottom: 2px solid rgba(254, 202, 202, 0.85);
  animation: ambient-glow-danger 2.2s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

@keyframes ambient-glow-danger {
  0% {
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3), inset 0 0 18px rgba(239, 68, 68, 0.2);
    border-color: rgba(254, 202, 202, 0.45);
  }
  50% {
    box-shadow: 0 8px 40px rgba(239, 68, 68, 0.7), 0 0 30px rgba(239, 68, 68, 0.35), inset 0 0 30px rgba(254, 202, 202, 0.35);
    border-color: rgba(254, 202, 202, 0.95);
  }
  100% {
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3), inset 0 0 18px rgba(239, 68, 68, 0.2);
    border-color: rgba(254, 202, 202, 0.45);
  }
}

/* ========================================================
   WARNING ALERT (TIER 2 - AMBER-ORANGE BANNER)
   ======================================================== */
/* Warning Alert: Soft Ambient Breathing Neon Glow */
.warning-banner-glow {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.95), rgba(180, 83, 9, 0.95));
  border-bottom: 2px solid rgba(251, 191, 36, 0.85);
  animation: ambient-glow-warning 2.8s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

@keyframes ambient-glow-warning {
  0% {
    box-shadow: 0 4px 18px rgba(245, 158, 11, 0.25), inset 0 0 15px rgba(251, 191, 36, 0.15);
    border-color: rgba(251, 191, 36, 0.45);
  }
  50% {
    box-shadow: 0 8px 36px rgba(245, 158, 11, 0.55), 0 0 25px rgba(245, 158, 11, 0.25), inset 0 0 25px rgba(251, 191, 36, 0.3);
    border-color: rgba(253, 230, 138, 0.9);
  }
  100% {
    box-shadow: 0 4px 18px rgba(245, 158, 11, 0.25), inset 0 0 15px rgba(251, 191, 36, 0.15);
    border-color: rgba(251, 191, 36, 0.45);
  }
}

/* Glassmorphism panels */
.glass-panel {
  background: rgba(18, 24, 38, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
  will-change: transform, box-shadow;
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.glass-panel-danger {
  background: rgba(45, 12, 12, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(239, 68, 68, 0.7);
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.3);
}

.glass-panel-warning {
  background: rgba(38, 26, 12, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(245, 158, 11, 0.65);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.25);
}

/* Station Cards: Smooth Hover Elevation and Soft Luminous Atmospheric Shadow */
.station-card {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
  will-change: transform, box-shadow;
}

.station-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 30px -8px rgba(6, 182, 212, 0.16), 0 0 20px rgba(6, 182, 212, 0.1);
  border-color: rgba(56, 189, 248, 0.5);
}

.glass-panel-warning.station-card:hover {
  box-shadow: 0 16px 30px -8px rgba(245, 158, 11, 0.25), 0 0 20px rgba(245, 158, 11, 0.18);
  border-color: rgba(251, 191, 36, 0.7);
}

.glass-panel-danger.station-card:hover {
  box-shadow: 0 16px 30px -8px rgba(239, 68, 68, 0.3), 0 0 22px rgba(239, 68, 68, 0.22);
  border-color: rgba(239, 68, 68, 0.85);
}

/* ========================================================
   EMERGENCY GUIDELINES ACCORDION (SMOOTH CSS GRID EXPAND)
   ======================================================== */
.accordion-collapse {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-collapse.expanded {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.accordion-collapse.expanded .accordion-inner {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================================
   WATER LEVEL GAUGE & WAVE ANIMATION
   ======================================================== */
.water-gauge-container {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.85);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.6);
}

.water-wave-fill {
  transition: height 1s cubic-bezier(0.4, 0, 0.2, 1), background 0.5s ease;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  will-change: height;
  transform: translateZ(0); /* Hardware accelerated */
}

/* Subtle continuous ripple waves on the top edge of the water fill */
.water-wave-fill::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 0;
  width: 200%;
  height: 12px;
  background-repeat: repeat-x;
  background-size: 80px 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 12' preserveAspectRatio='none'%3E%3Cpath d='M0,6 C20,0 20,12 40,6 C60,0 60,12 80,6 L80,12 L0,12 Z' fill='rgba(255,255,255,0.38)'/%3E%3C/svg%3E");
  animation: wave-motion-front 3.5s linear infinite;
  transform: translate3d(0, 0, 0);
  pointer-events: none;
  opacity: 0.85;
  z-index: 2;
}

.water-wave-fill::after {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  width: 200%;
  height: 14px;
  background-repeat: repeat-x;
  background-size: 120px 14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 14' preserveAspectRatio='none'%3E%3Cpath d='M0,7 C30,1 30,13 60,7 C90,1 90,13 120,7 L120,14 L0,14 Z' fill='rgba(255,255,255,0.22)'/%3E%3C/svg%3E");
  animation: wave-motion-back 5.8s linear infinite;
  transform: translate3d(0, 0, 0);
  pointer-events: none;
  opacity: 0.65;
  z-index: 1;
}

@keyframes wave-motion-front {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-80px, 0, 0); }
}

@keyframes wave-motion-back {
  0% { transform: translate3d(-120px, 0, 0); }
  100% { transform: translate3d(0, 0, 0); }
}

/* Shimmering surface ripple highlight line */
.water-surface-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, rgba(255,255,255,0.2), rgba(255,255,255,0.85), rgba(255,255,255,0.2));
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.7);
  z-index: 3;
  pointer-events: none;
}

/* Threshold marker lines */
.bank-marker-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: #f87171;
  box-shadow: 0 0 8px #ef4444;
  z-index: 10;
}

.bank-marker-label {
  position: absolute;
  right: 6px;
  top: -18px;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fca5a5;
  background: rgba(15, 23, 42, 0.95);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid rgba(239, 68, 68, 0.5);
  white-space: nowrap;
}

.critical-marker-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-top: 2px dashed #fbbf24;
  box-shadow: 0 0 8px rgba(251, 191, 36, 0.6);
  z-index: 10;
}

.critical-marker-label {
  position: absolute;
  left: 6px;
  top: -18px;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fef08a;
  background: rgba(15, 23, 42, 0.95);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid rgba(251, 191, 36, 0.6);
  white-space: nowrap;
}

/* Distance Pill */
.distance-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(14, 165, 233, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* Realtime live connected pulse */
.live-pulse {
  animation: live-pulse-anim 1.8s infinite ease-in-out;
}

@keyframes live-pulse-anim {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.4; }
  100% { transform: scale(1); opacity: 1; }
}

/* ========================================================
   INTERACTIVE MAP & CUSTOM MARKERS (LEAFLET)
   ======================================================== */
#floodMap {
  background: #090d16;
  z-index: 1;
}

/* Subtle tile adjustment to match dark UI */
.leaflet-tile {
  filter: brightness(0.88) contrast(1.1) saturate(0.92);
}

/* Custom dark popup styling */
.leaflet-popup-content-wrapper {
  background: rgba(15, 23, 42, 0.96) !important;
  color: #f1f5f9 !important;
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
  border-radius: 1rem !important;
  box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.8) !important;
  backdrop-filter: blur(14px);
}

.leaflet-popup-tip {
  background: rgba(15, 23, 42, 0.96) !important;
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
}

.leaflet-popup-content {
  margin: 12px 14px !important;
  line-height: 1.4 !important;
  font-family: 'Prompt', sans-serif !important;
}

.leaflet-container a.leaflet-popup-close-button {
  color: #94a3b8 !important;
  padding: 8px 10px 0 0 !important;
}

.leaflet-container a.leaflet-popup-close-button:hover {
  color: #ffffff !important;
}

/* User GPS Marker with dual soft radar pulse */
.user-gps-marker {
  position: relative;
  width: 26px;
  height: 26px;
  pointer-events: auto;
}

.user-gps-dot {
  width: 14px;
  height: 14px;
  background: #0284c7;
  border: 2.5px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 14px #38bdf8;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.user-gps-ring {
  width: 32px;
  height: 32px;
  background: rgba(14, 165, 233, 0.22);
  border: 1.5px solid rgba(56, 189, 248, 0.75);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: radar-pulse-user 2.4s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  z-index: 1;
  pointer-events: none;
}

.user-gps-ring-delayed {
  animation-delay: 1.2s;
}

@keyframes radar-pulse-user {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0.95; }
  65% { opacity: 0.35; }
  100% { transform: translate(-50%, -50%) scale(2.6); opacity: 0; }
}

/* ========================================================
   STATION MARKERS & RADAR RIPPLES (LEAFLET)
   ======================================================== */
.custom-station-icon {
  background: transparent !important;
  border: none !important;
  overflow: visible !important;
}

.station-pin-wrapper {
  position: relative;
  width: 44px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.station-pin {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 30px;
  padding: 0 6px;
  border-radius: 9999px;
  color: white;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.02em;
  font-family: 'JetBrains Mono', monospace;
  border: 2px solid white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
  position: relative;
  white-space: nowrap;
  z-index: 2;
  will-change: transform;
}

.station-pin-wrapper:hover .station-pin {
  transform: scale(1.22) translateY(-3px);
  z-index: 9999;
}

/* Normal station: steady and calm, no distracting radar rings */
.station-pin-normal {
  background: linear-gradient(135deg, #10b981, #059669);
  box-shadow: 0 2px 10px rgba(16, 185, 129, 0.5);
}

/* Warning & Emergency Pins */
.station-pin-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.85);
}

.station-pin-emergency {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
  box-shadow: 0 0 22px rgba(239, 68, 68, 0.95);
}

/* Radar Ripple Rings (Radiating outward smoothly from markers) */
.station-radar-ring {
  position: absolute;
  inset: -1px;
  border-radius: 9999px;
  pointer-events: none;
  z-index: 1;
}

.radar-warning {
  border: 2px solid rgba(245, 158, 11, 0.85);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
  animation: radar-ping-warning 1.8s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}

.radar-emergency {
  border: 2.5px solid rgba(239, 68, 68, 0.95);
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.7);
  animation: radar-ping-emergency 1.3s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}

.radar-ring-delayed {
  animation-delay: 0.65s;
}

@keyframes radar-ping-warning {
  0% {
    transform: scale(1);
    opacity: 0.9;
  }
  60% {
    opacity: 0.45;
  }
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

@keyframes radar-ping-emergency {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  60% {
    opacity: 0.5;
  }
  100% {
    transform: scale(2.7);
    opacity: 0;
  }
}

/* ========================================================
   MICRO-INTERACTION: REFRESH BUTTON SPIN ANIMATION
   ======================================================== */
.spinning-360 {
  animation: spin-smooth 0.75s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes spin-smooth {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ========================================================
   SLUICE GATE TWIN CARD (ปตร. สองฝั่ง ด้านใน & ด้านนอก)
   ======================================================== */
.sluice-gate-pillar {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: inset 0 1px 3px rgba(255, 255, 255, 0.08), 0 4px 12px rgba(0, 0, 0, 0.4);
  min-width: 50px;
}

.gate-guide-rails {
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.8);
  border-left: 1px solid rgba(148, 163, 184, 0.4);
  border-right: 1px solid rgba(148, 163, 184, 0.4);
}

.gate-opening-slab {
  background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
  transition: height 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.sluice-gate-card {
  background: radial-gradient(circle at 50% 0%, rgba(14, 116, 144, 0.12) 0%, rgba(15, 23, 42, 0.88) 70%);
}

/* ========================================================
   BATTERY & MOBILE PERFORMANCE: PREFERS-REDUCED-MOTION
   ======================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  body.emergency-active {
    animation: none !important;
    background-color: #120303 !important;
  }

  .emergency-banner-flash,
  .warning-banner-glow,
  .emergency-border-pulse {
    animation: none !important;
  }

  .water-wave-fill::before,
  .water-wave-fill::after {
    animation: none !important;
    opacity: 0.4 !important;
  }

  .user-gps-ring,
  .station-radar-ring,
  .radar-warning,
  .radar-emergency,
  .live-pulse,
  .spinning-360 {
    animation: none !important;
    display: none !important;
  }

  .station-card:hover,
  .glass-panel:hover,
  .station-pin:hover,
  .station-pin-wrapper:hover .station-pin {
    transform: none !important;
  }
}