/* deen2u — Hadith Q&A
   Design tokens: white bg, Islamic green accent, mobile-first. */

:root {
  --green: #1B6B3A;
  --green-dark: #12502b;
  --green-tint: #eaf3ee;
  --ink: #1a1a1a;
  --muted: #5c6b62;
  --line: #e2e8e4;
  --bg: #ffffff;
  --radius: 10px;
  --wrap: 720px;

  --font-body: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;
  --font-arabic: "Noto Naskh Arabic", serif;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.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;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  padding: 28px 0 22px;
  margin-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

.brand-accent {
  color: var(--green);
}

.version-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green-dark);
  background: var(--green-tint);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
  line-height: 1.4;
}

.tagline {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Controls */
.controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 18px;
}

.search-field input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdfc;
  color: var(--ink);
}

.search-field input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(27, 107, 58, 0.12);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.filter-chip:hover {
  border-color: var(--green);
  color: var(--green-dark);
}

.filter-chip[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

/* Result count */
.result-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 16px;
}

/* Q&A list */
.qa-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.qa-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
}

.qa-question {
  margin: 0 0 12px;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.45;
}

.qa-answer {
  margin: 0 0 14px;
  color: #2a2a2a;
}

.qa-arabic {
  font-family: var(--font-arabic);
  font-size: 1.5rem;
  line-height: 2;
  direction: rtl;
  text-align: right;
  color: var(--ink);
  margin: 0 0 12px;
  padding: 10px 14px;
  background: var(--green-tint);
  border-radius: var(--radius);
}

.qa-reference {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--green-dark);
  background: var(--green-tint);
  border-radius: 6px;
  padding: 4px 10px;
}

mark {
  background: #fff2ac;
  color: inherit;
  padding: 0 1px;
  border-radius: 2px;
}

/* Empty state */
.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 40px 0;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding: 24px 0 40px;
}

.footer-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green-dark);
  margin: 0 0 6px;
}

.footer-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0;
}

/* Larger screens */
@media (min-width: 640px) {
  body {
    font-size: 18px;
  }
  .controls {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .search-field {
    flex: 1 1 auto;
  }
  .filters {
    flex: 0 0 auto;
  }
}