/* === GLOBAL === */
body {
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  background-color: #f4f6fa;
  color: #222;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  transition: background 0.6s ease, color 0.6s ease;
  overflow-x: hidden; /* prevent sideways scroll on mobile */
}

/* === HEADER === */
header {
  background: linear-gradient(90deg, #004aad, #006eff);
  color: white;
  padding: 25px 15px;
  text-align: center;
  border-bottom: 3px solid #003b8c;
  position: relative;
}

header h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

header h2 {
  margin: 8px 0 0;
  font-weight: 400;
  font-size: 18px;
  color: #f4e19b;
}

/* === NAVIGATION === */
nav {
  margin-top: 12px;
}
nav a {
  color: #ffd700;
  text-decoration: none;
  font-weight: 600;
  padding: 0 10px;
  transition: color 0.3s;
}
nav a:hover {
  color: #fff;
  text-decoration: underline;
}

/* === MAIN CONTENT === */
main {
  padding: 30px;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

/* === BUTTONS === */
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(180deg, #0078ff, #0064d2);
  transition: all 0.25s ease;
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
  width: auto;
  max-width: 100%;
}
button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.25);
}

button[onclick*="CalculateLegs"] { background: linear-gradient(180deg, #0078d7, #005fa3); }
button[onclick*="OpenBookingCom"] { background: linear-gradient(180deg, #1a73e8, #1557b0); }
button[onclick*="OpenGoogleMaps"] { background: linear-gradient(180deg, #34a853, #27813f); }
button[onclick*="OpenABRP"] { background: linear-gradient(180deg, #ff9800, #e68900); }
button[onclick*="saveTrip"] { background: linear-gradient(180deg, #16b31d, #0e8e15); }
#downloadpdf { background: linear-gradient(180deg, #d32f2f, #b71c1c); }

/* === LAYOUT PANELS === */
.main-layout {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  box-sizing: border-box;
}

.inputs-panel, 
.map-panel {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
  padding: 20px;
  box-sizing: border-box;
}

.inputs-panel {
  flex: 1 1 350px;
  max-width: 400px;
  min-width: 280px;
}

.map-panel {
  flex: 1 1 700px;
  display: flex;
  flex-direction: column;
  height: auto;
  min-width: 300px;
}

/* === MAP & OUTPUT === */
#map {
  width: 100%;
  height: 450px;
  border-radius: 10px;
  border: 1px solid #ccc;
}

#output {
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  overflow-y: auto;
  max-height: 80vh;
  font-size: 15px;
  line-height: 1.5;
  color: #333;
}

/* === DARK MODE === */
body.dark-mode {
  background: #121212;
  color: #e0e0e0;
}
body.dark-mode header {
  background: linear-gradient(90deg, #1a1a1a, #333);
  border-bottom-color: #555;
}
body.dark-mode .inputs-panel,
body.dark-mode .map-panel,
body.dark-mode #output {
  background: #1f1f1f;
  color: #f0f0f0;
  box-shadow: 0 3px 10px rgba(255,255,255,0.05);
}
body.dark-mode button {
  box-shadow: 0 0 8px rgba(255,255,255,0.1);
}
body.dark-mode a {
  color: #ffd700;
}

/* === THEME TOGGLE === */
#themeToggle {
  position: absolute;
  top: 15px;
  right: 20px;
  background: #004aad;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffd700;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.4s ease;
  box-shadow: 0 0 8px rgba(0,0,0,0.3);
  z-index: 20;
}
#themeToggle:hover {
  transform: rotate(20deg) scale(1.1);
  box-shadow: 0 0 15px rgba(255,215,0,0.6);
}
body.dark-mode #themeToggle {
  background: #ffd700;
  color: #222;
  transform: rotate(180deg);
}

/* === RESPONSIVE ENHANCEMENTS === */

/* Medium screens (tablets) */
@media (max-width: 1024px) {
  main {
    padding: 20px;
  }
  header h1 {
    font-size: 28px;
  }
  #map {
    height: 380px;
  }
}

/* Small screens (mobile phones) */
@media (max-width: 700px) {
  header {
    padding: 20px 10px;
  }

  header h1 {
    font-size: 24px;
  }

  header h2 {
    font-size: 15px;
  }

  nav a {
    display: inline-block;
    padding: 6px 8px;
    font-size: 14px;
  }

  .main-layout {
    flex-direction: column;
    gap: 20px;
    align-items: stretch;
  }

  .inputs-panel,
  .map-panel,
  #output {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 16px;
    box-sizing: border-box;
  }

  #map {
    height: 320px;
  }

  button {
    width: 100%;
    font-size: 16px;
    padding: 12px;
    border-radius: 10px;
  }

  label {
    font-size: 14px;
  }

  input[type="text"],
  input[type="number"],
  input[type="date"],
  select {
    width: 100%;
    font-size: 15px;
  }

  #themeToggle {
    top: 10px;
    right: 10px;
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  /* Improve readability of output */
  #output {
    font-size: 14px;
    line-height: 1.4;
  }

  .leg-card {
    padding: 10px 12px;
  }
}

/* Prevent zoom jump and horizontal scroll */
button, input, select {
  touch-action: manipulation;
  font-size: 16px; /* prevents iOS zoom */
}


.route-avoid-options {
  margin-top: 10px;
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  font-size: 0.9em;
}


/* TravelPathPro Header Description */
.tpp-header-description {
  max-width: 900px;
  margin: 20px auto 10px;
  text-align: center;
  color: #ffffff;
  line-height: 1.7;
  font-size: 1.1rem;
  padding: 0 15px;
}

/* Tablet size */
@media (max-width: 768px) {
  .tpp-header-description {
    font-size: 1rem;
    line-height: 1.6;
  }
}

/* Mobile phones */
@media (max-width: 480px) {
  .tpp-header-description {
    font-size: 0.92rem;
    line-height: 1.55;
  }
}

/* Extra small devices */
@media (max-width: 360px) {
  .tpp-header-description {
    font-size: 0.85rem;
    line-height: 1.5;
  }
}