/* Self-hosted font only: no requests to other origins. The WOFF2 is a subset
   of Noto Sans Devanagari Regular (OFL) built by scripts/build_font.sh and
   precached by sw.js. Keep unicode-range in sync with that script. */
@font-face {
  font-family: "Noto Sans Devanagari";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/noto-sans-devanagari-subset.woff2") format("woff2");
  unicode-range: U+0020-007E, U+00A0, U+0900-097F, U+200C-200D, U+20B9, U+25CC, U+A8E0-A8FF;
}

/* Design tokens. Every later screen (picker, search, canvass, tally) reuses
   these; components must not hard-code colours. */
:root {
  /* Colour: calm teal on a warm off-white. */
  --color-primary: #0f766e;
  --color-primary-strong: #115e59;
  --color-on-primary: #ffffff;
  --color-bg: #f6f5f1;
  --color-surface: #ffffff;
  --color-text: #1f2933;
  --color-text-muted: #52606d;
  --color-border: #e1ddd3;
  --color-focus: #f59e0b;

  /* Spacing (4 px grid). */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;

  /* Radius. */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-pill: 999px;

  /* Type scale (body never below 16 px). */
  --font-family-base: "Noto Sans Devanagari", "Mangal", "Nirmala UI", system-ui, sans-serif;
  --font-size-sm: 1rem;
  --font-size-body: 1.0625rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --line-height-body: 1.7;
  --line-height-heading: 1.45;

  /* Layout. */
  --touch-target: 48px;
  --content-max-width: 40rem;
  --shadow-card: 0 1px 2px rgba(31, 41, 51, 0.08);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  overflow-wrap: anywhere;
}

header {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-4) var(--space-4) var(--space-5);
}

header h1 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 400;
  line-height: var(--line-height-heading);
}

header p {
  margin: var(--space-1) 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-on-primary);
}

main {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4);
}

.empty-state {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6) var(--space-5);
  text-align: center;
}

.empty-state h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: 400;
  line-height: var(--line-height-heading);
  color: var(--color-text);
}

.empty-state p {
  margin: 0 0 var(--space-5);
  color: var(--color-text-muted);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--touch-target);
  padding: var(--space-3) var(--space-5);
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font: inherit;
  font-size: var(--font-size-body);
  line-height: var(--line-height-heading);
  cursor: pointer;
}

.btn-primary:hover,
.btn-primary:active {
  background: var(--color-primary-strong);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.status {
  margin: var(--space-4) 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-align: center;
}

.picker {
  margin-top: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

.picker-field {
  margin-bottom: var(--space-4);
}

.picker-label {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.picker-select {
  width: 100%;
  min-height: var(--touch-target);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  font-size: var(--font-size-body);
}

.picker-select:disabled {
  color: var(--color-text-muted);
  background: var(--color-bg);
}

.picker-select:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.picker-message {
  margin: 0;
  min-height: 1.5rem;
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

/* Ward roll: loading line, error card and the virtualised voter list. Row
   height is fixed by src/ui/rollList.js (ROW_HEIGHT); keep the content of a
   row (three single lines) within it. */
.roll-section {
  margin-top: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
}

.roll-section[hidden],
.empty-state[hidden] {
  display: none;
}

.roll-message {
  margin: 0 0 var(--space-4);
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.roll-count {
  margin: 0 0 var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.roll-viewport {
  height: 70vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--color-border);
}

.roll-viewport:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.roll-spacer {
  position: relative;
  contain: strict;
  width: 100%;
}

.roll-row {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  overflow: hidden;
  padding: var(--space-2) var(--space-1);
  border-bottom: 1px solid var(--color-border);
  line-height: var(--line-height-heading);
  will-change: transform;
}

.roll-name,
.roll-relative,
.roll-meta {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.roll-name {
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

.roll-relative,
.roll-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}