/* Tesla-inspired homepage: full-screen panels, minimal type, black/white. */
html { scroll-behavior: smooth; }
body.home {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: #171a20;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
body.home a { text-decoration: none; color: inherit; }

/* header */
.t-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 56px; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.t-logo { font-size: 15px; font-weight: 600; letter-spacing: .38em; }
.t-logo small { display: block; letter-spacing: .18em; font-size: 9px; font-weight: 400; color: #5c5e62; margin-top: 2px; }
.t-nav { display: flex; gap: 26px; align-items: center; }
.t-nav a, .t-nav button {
  font-size: 14px; color: #171a20; background: none; border: 0; cursor: pointer;
  padding: 6px 2px; font-family: inherit;
}
.t-nav a:hover, .t-nav button:hover { color: #000; text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 760px) { .t-nav a.hide-m { display: none; } .t-header { padding: 0 16px; } }

/* full-screen panels */
.panel {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  padding: 104px 20px 56px;
  background-size: cover; background-position: center; position: relative;
  box-sizing: border-box;
}
.panel::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.38) 0%, rgba(0,0,0,0) 34%, rgba(0,0,0,0) 70%, rgba(0,0,0,.28) 100%);
  pointer-events: none;
}
.panel > * { position: relative; z-index: 1; }
.panel h2 { font-size: 42px; font-weight: 500; margin: 0; letter-spacing: .02em; color: #fff; }
.panel .sub { margin-top: 10px; font-size: 16px; color: rgba(255,255,255,.92); }
.panel .cta-row { margin-top: auto; display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.btn-t {
  display: inline-block; min-width: 252px; padding: 11px 24px;
  font-size: 14px; border-radius: 4px; text-align: center; box-sizing: border-box;
}
.btn-t-dark { background: #171a20; color: #fff !important; }
.btn-t-light { background: rgba(244,244,244,.9); color: #393c41 !important; backdrop-filter: blur(6px); }
.btn-t-outline { border: 1px solid #171a20; color: #171a20 !important; background: transparent; }
.panel .phone-line { margin-top: 18px; font-size: 14px; color: rgba(255,255,255,.9); }
.panel .phone-line a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 760px) {
  .panel h2 { font-size: 30px; }
  .btn-t { min-width: 0; width: 100%; }
  .panel .cta-row { width: 100%; max-width: 340px; }
}

/* light content sections */
.section-light { padding: 90px 20px; text-align: center; background: #fff; }
.section-light h2 { font-size: 32px; font-weight: 500; margin: 0 0 14px; }
.section-light .lead { max-width: 720px; margin: 0 auto; font-size: 16px; line-height: 1.9; color: #393c41; }
.section-grey { background: #f4f4f4; }

/* tire list */
.tire-wrap { max-width: 860px; margin: 34px auto 0; text-align: left; }
.tire-row {
  display: flex; align-items: baseline; gap: 16px;
  padding: 16px 4px; border-bottom: 1px solid #e3e3e3;
}
.tire-name { font-size: 16px; font-weight: 500; flex: 1; }
.tire-size { font-size: 14px; color: #5c5e62; }
.tire-price { font-size: 16px; font-weight: 600; white-space: nowrap; }
.tire-stock { font-size: 12px; color: #8a8d91; white-space: nowrap; }
.tire-msg { text-align: center; color: #5c5e62; font-size: 14px; padding: 22px 0 6px; }
.svc-chips { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 30px; }
.svc-chips a {
  border: 1px solid #171a20; border-radius: 999px; padding: 8px 20px; font-size: 14px;
}
.svc-chips a:hover { background: #171a20; color: #fff; }

/* map + footer */
.map-frame { width: 100%; height: 420px; border: 0; filter: grayscale(1); display: block; }
.addr-line { text-align: center; padding: 26px 20px 6px; font-size: 15px; color: #393c41; }
.t-footer { padding: 34px 20px 44px; text-align: center; font-size: 12px; color: #5c5e62; line-height: 2; }