/*
 * base.css
 * Global resets and foundational styles for the minimalist dashboard UI.
 */

:where(*, *::before, *::after) {
  box-sizing: border-box;
  border-style: solid;
  border-width: 0;
}

:where(html) {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

:where(body) {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-family-sans);
  font-weight: var(--font-weight-regular);
  font-size: var(--font-size-md);
  line-height: var(--line-height-base);
  color: var(--color-text-primary);
  background:
    linear-gradient(160deg, rgba(37, 99, 235, 0.05), transparent 58%),
    linear-gradient(330deg, rgba(15, 23, 42, 0.04), transparent 55%),
    var(--color-surface-page);
  display: flex;
  justify-content: center;
  align-items: stretch;
  padding-top: calc(var(--safe-area-top) + clamp(1.5rem, 4vw, 4rem));
  padding-right: calc(var(--safe-area-right) + clamp(1.25rem, 4vw, 3rem));
  padding-bottom: calc(var(--safe-area-bottom) + clamp(2.5rem, 6vw, 4.5rem));
  padding-left: calc(var(--safe-area-left) + clamp(1.25rem, 4vw, 3rem));
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--transition-medium), color var(--transition-medium);
  overflow-x: hidden;
}

main {
  width: 100%;
}

:where(h1, h2, h3, h4, h5, h6) {
  margin: 0 0 var(--space-2);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-snug);
}

:where(p) {
  margin: 0;
}

:where(p + p) {
  margin-top: var(--space-2);
}

:where(ul, ol) {
  margin: 0;
  padding-inline-start: 1.25rem;
}

:where(button, input, select, textarea) {
  font: inherit;
  color: inherit;
}

:where(button) {
  appearance: none;
  background: none;
  cursor: pointer;
  border-radius: 0;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

:where(button:disabled) {
  cursor: not-allowed;
  opacity: 0.5;
  box-shadow: none;
}

:where(input, select, textarea) {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-soft);
  background-color: var(--color-surface-card);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

:where(input::placeholder, textarea::placeholder) {
  color: var(--color-text-tertiary);
}

:where(input:focus-visible, select:focus-visible, textarea:focus-visible) {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

:where(select) {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position:
    calc(100% - 1.3rem) calc(50% - 0.35rem),
    calc(100% - 0.9rem) calc(50% - 0.35rem);
  background-size: 0.5rem 0.5rem;
  background-repeat: no-repeat;
}

:where(textarea) {
  resize: vertical;
  min-height: 6.5rem;
}

:where(fieldset) {
  border: none;
  padding: 0;
  margin: 0;
}

:where(legend) {
  margin-bottom: var(--space-2);
  font-weight: var(--font-weight-semibold);
}

:where(a) {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

:where(a:hover, a:focus-visible) {
  color: var(--color-accent-strong);
}

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

:where(table) {
  border-collapse: collapse;
  width: 100%;
}

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

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

.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 767px) {
  :where(body) {
    display: block;
    padding-top: calc(var(--safe-area-top) + 1.5rem);
    padding-right: calc(var(--safe-area-right) + clamp(0.85rem, 4vw, 1.25rem));
    padding-bottom: calc(var(--safe-area-bottom) + 1.75rem);
    padding-left: calc(var(--safe-area-left) + clamp(0.85rem, 4vw, 1.25rem));
  }
}

@media (prefers-color-scheme: dark) {
  :where(body) {
    background:
      radial-gradient(100% 140% at 0% -20%, rgba(59, 130, 246, 0.25), transparent 65%),
      linear-gradient(300deg, rgba(14, 23, 42, 0.7), transparent 70%),
      var(--color-surface-page);
  }
}

@media (prefers-reduced-motion: reduce) {
  :where(body) {
    scroll-behavior: auto;
  }

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