:root {
  --brt-red: #DC0032;
  --text-main: #333;
  --text-muted: #666;
}
* { box-sizing: border-box; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
body { font-family: 'Montserrat', sans-serif; display: flex; flex-direction: column; min-height: 100vh; overflow-x: hidden; }
.header { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; background: #fff; max-width: 500px; margin: 0 auto; position: sticky; top: 0; z-index: 1000; }
.header-logo img { height: 36px; width: auto; display: block; }
.header-icons { display: flex; gap: 18px; align-items: center; }
.header-icon { width: 32px; height: 32px; color: #333; cursor: pointer; }
.track-alert { width: 100%; background: var(--brt-red); color: #fff; padding: 10px; text-align: center; font: 600 14px 'Montserrat'; display: flex; justify-content: center; align-items: center; gap: 10px; z-index: 1001; }
.track-alert svg { width: 18px; height: 18px; }