/* ==========================================================================
   base.css
   Reset + sane defaults for raw HTML elements. No classes in this file.
   ========================================================================== */

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

* {
  margin: 0;
  padding: 0;
}

html {
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255, 193, 69, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(255, 93, 115, 0.06), transparent),
    radial-gradient(ellipse 70% 45% at 0% 65%, rgba(255, 255, 255, 0.02), transparent);
  background-repeat: no-repeat;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
}

p {
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------------
   Accessibility: visible focus state for keyboard users on every
   interactive element. Never remove outline without replacing it.
   --------------------------------------------------------------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Respect reduced-motion preference site-wide */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* Custom scrollbar (progressive enhancement, ignored where unsupported) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-alt);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-strong);
}

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