/* ==========================================================================
   RoomCompare — Reset, element defaults, typography
   Element selectors and single-class utilities only. No layout lives here.
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --- Headings ------------------------------------------------------------
   Sentence case throughout. No ALL-CAPS tracked eyebrow labels: the
   hierarchy is carried by size and weight, not by decorative chrome. */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  text-wrap: balance;
}

h1 { font-size: var(--text-xl); letter-spacing: var(--tracking-tight); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-md); }
h4 { font-size: var(--text-base); }

p {
  margin: 0;
  max-width: var(--measure);
}

/* --- Numerals ------------------------------------------------------------
   The one typographic statement the design makes. Tabular figures give
   every digit the same advance width, so values of equal length line up
   digit-for-digit down a column and magnitude reads at a glance.
   Values are left-aligned: they start where the eye already is, on the
   same edge as every label and text value in the interface. */

.numeric,
td.numeric,
th.numeric,
input[type="number"],
input[inputmode="numeric"] {
  font-variant-numeric: tabular-nums lining-nums;
}

.numeric { text-align: left; }

/* --- Narrow face ---------------------------------------------------------
   Table column headers, group labels, dense meta. */

.narrow {
  font-family: var(--font-narrow);
  font-weight: var(--weight-semibold);
  font-size: var(--text-xs);
}

/* --- Muted / secondary text --------------------------------------------- */

.meta {
  color: var(--muted);
  font-size: var(--text-xs);
}

/* "Not recorded" — distinct from absent. A blank cell reads as "absent";
   this reads as "unknown", and those are different facts. */
.unrecorded {
  color: var(--muted);
  font-style: italic;
}

/* --- Links --------------------------------------------------------------- */

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

/* Hover only where there is a pointer that hovers. A touch screen applies
   :hover on tap and keeps it until the next tap elsewhere, so the style
   would linger as false feedback. Every :hover in the stylesheets follows
   this rule. */
@media (hover: hover) {
  a:hover { color: var(--accent-press); }
}

/* --- Form elements ------------------------------------------------------- */

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

button {
  border: none;
  background: none;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

textarea {
  max-width: var(--measure-notes);
  resize: vertical;
}

/* --- Focus ---------------------------------------------------------------
   Visible on every interactive element. `outline: none` appears nowhere
   in this codebase. */

:focus-visible {
  outline: var(--focus-width) solid var(--focus-color);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}

/* --- Media --------------------------------------------------------------- */

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

/* --- Lists --------------------------------------------------------------- */

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* --- Tables --------------------------------------------------------------
   The origin of the visual system. Hairline grid, no rounded corners,
   numerals aligned. */

table {
  width: 100%;
  border-collapse: collapse;
}

/* --- Selection ----------------------------------------------------------- */

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

/* --- Screen-reader-only -------------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- Reduced motion ------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}