body {
  background: linear-gradient(135deg, #c9cddf 0%, #9780ac 100%);
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.brand-icon {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
}

.weather-hero {
  position: relative;
  padding: clamp(2rem, 4vw, 3.5rem);
  border-radius: 32px;
  background: rgba(32, 28, 63, 0.75);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
  color: #f8f9ff;
  backdrop-filter: blur(12px);
}

.weather-hero::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.18), transparent 55%),
              radial-gradient(circle at bottom left, rgba(118, 75, 162, 0.25), transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.weather-hero > .row {
  position: relative;
  z-index: 1;
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.85rem;
  color: rgba(248, 249, 255, 0.85);
}

.hero-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
}

.hero-list .icon {
  width: 1.4em;
  height: 1.4em;
  color: #ffd166;
}

.hero-image {
  width: 100%;
  height: 100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 12px 35px rgba(15, 23, 42, 0.45);
}

.card + .card {
  margin-top: .5rem;
}

#alert {
  border-width: 1px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card-body {
  background: linear-gradient(180deg, #ffffff 0%, #f8f9ff 100%);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card-body:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(13, 110, 253, 0.25);
  background: linear-gradient(180deg, #f9faff 0%, #ddf8f4 100%);
}

.weather-icon {
  width: 72px;
  height: 72px;
  transition: transform 0.3s ease;
  z-index: 2;
  pointer-events: none;
}

button {
  transition: all 0.3s ease;
  border-radius: 8px;
  font-weight: 600;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

button:active {
  transform: translateY(0);
}

.icon {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
  fill: currentColor;
  stroke: currentColor;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.form-control, .form-select {
  border-radius: 8px;
  border: 1px solid #ced4da;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.forecast-card {
  cursor: pointer;
}

.forecast-card:active {
  transform: translateY(-2px);
}

/* ajustes del scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #5a6fd8, #6a4190);
}