* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior-y: none;
    transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

button, .tab, .seg, .avatar, label {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

button:focus { outline: none; }
button::-moz-focus-inner { border: 0; }

input {
    -webkit-user-select: text;
    user-select: text;
    touch-action: manipulation;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0;
}

h2 { font-size: 17px; }
h3 { font-size: 14px; }

p { margin: 0 0 10px; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-strong); }

svg { display: block; flex: none; }

[hidden] { display: none !important; }

.muted { color: var(--ink-muted); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 0.94em; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

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

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}