/* base.css — Smile Oasis · Clint Bruyere, DDS */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--color-ice);
  color: var(--color-slate);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; width: 100%; display: block; }
a { color: var(--color-link); }
::selection { background: var(--color-accent); color: var(--color-surface); }

.wrap { width: var(--wrap); margin: 0 auto; }
section { position: relative; overflow: clip; }

.kicker {
  font-family: var(--font-ui);
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .22em; color: var(--color-accent); margin: 0 0 18px;
}
section:not(.hero):not(.journey):not(.proof) .kicker { color: var(--color-link); }
.h1, .h2 {
  font-family: var(--font-display); font-weight: 700;
  line-height: 1.08; margin: 0 0 22px; text-wrap: balance;
}
.h1 { font-size: clamp(2.7rem, 7.2vw, 5rem); color: var(--color-surface); }
.h2 { font-size: clamp(1.9rem, 4.6vw, 3.1rem); color: var(--color-navy-900); }
.accent-it { font-family: var(--font-accent); font-style: italic; font-weight: 700; }
.w { display: inline-block; white-space: nowrap; } /* K2: слова не рвутся */
.sub { max-width: 58ch; margin: 0 0 30px; font-size: 1.06rem; }
.note-small { font-size: .85rem; color: var(--color-slate-mid); }
.stock-tag {
  display: inline-block; font-family: var(--font-ui); font-size: 10px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; color: var(--color-slate-mid);
  border: 1px solid var(--color-border); border-radius: 999px; padding: 2px 8px; margin-top: 10px;
}

/* nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; gap: 22px;
  padding: 12px 4vw;
  background: linear-gradient(var(--navy-86), var(--navy-38) 70%, transparent);
}
.nav .brand {
  font-family: var(--font-display); font-weight: 700; color: var(--color-surface);
  text-decoration: none; font-size: 1.02rem; white-space: nowrap;
}
.nav .brand small { display: block; font-family: var(--font-ui); font-weight: 700; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--color-mist); }
.nav-links { display: flex; gap: 18px; margin-left: auto; }
.nav-links a { color: var(--color-ice); text-decoration: none; font-size: .9rem; opacity: .78; }
.nav-links a.active, .nav-links a:hover { opacity: 1; color: var(--color-surface); }
@media (max-width: 760px) { .nav-links { display: none; } }

:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }