:root {
  --welly-mint: #F9FDC8;
  --welly-sky: #AFE7E6;
  --welly-blue: #5AA2CF;
  --welly-navy: #29305A;
  --welly-white: #ffffff;
  --welly-cream: #fafafa;
  --welly-line: #eeeeee;
  --welly-muted: #aaaaaa;
  --welly-danger: #E76F51;
  --welly-success: #3a9e7a;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #f5f5f5;
  display: flex;
  justify-content: center;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

button,
input {
  font: inherit;
}

button,
a,
[onclick] {
  -webkit-tap-highlight-color: transparent;
}

.screen {
  background: var(--welly-white);
  width: 100%;
  max-width: 390px;
  min-height: 100vh;
  position: relative;
  padding-bottom: 70px;
}

.status-bar {
  padding: 12px 20px 4px;
  display: flex;
  justify-content: space-between;
}

.status-time {
  font-size: 13px;
  font-weight: 500;
  color: var(--welly-navy);
}

.status-icons {
  font-size: 11px;
  color: var(--welly-blue);
}

.topbar {
  padding: 8px 16px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--welly-navy);
}

.back-btn {
  font-size: 18px;
  color: var(--welly-blue);
  cursor: pointer;
}

.section-label {
  font-size: 11px;
  color: var(--welly-blue);
  padding: 0 16px;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 390px;
  background: var(--welly-navy);
  display: flex;
  justify-content: space-around;
  padding: 8px 0 22px;
  z-index: 100;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 64px;
  min-height: 56px;
  cursor: pointer;
  text-decoration: none;
}

.bottom-nav .nav-item img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-label {
  font-size: 9px;
  color: var(--welly-sky);
}

.nav-item.active .nav-label {
  color: var(--welly-white);
  font-weight: 500;
}

.up {
  color: var(--welly-success);
}

.down {
  color: var(--welly-danger);
}

.particle {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
}