/* ==========================================================================
   Base / Reset
   ========================================================================== */

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

html { scroll-behavior: smooth; color-scheme: dark; }
:root[data-theme='light'] html,
html:has([data-theme='light']) { color-scheme: light; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}

img { max-width: 100%; display: block; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }

::selection { background: var(--accent); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Utility */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--sp-6); }
@media (max-width: 700px) { .container { padding: 0 var(--sp-4); } }