/* cs-bihar-ui · components
   Reusable UI primitives for the CS Bihar Voice Bot.
   Naming: .c-{component}[__element][--modifier] */

/* ───────── App shell ───────── */

.c-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.c-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--line-hair);
  background: var(--bg-base);
}

.c-topbar__brand {
  display: flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-mono);
  color: var(--ink-secondary);
}

.c-topbar__brand-seal {
  width: 28px; height: 28px;
  color: var(--accent);
}

.c-topbar__actions { display: flex; align-items: center; gap: var(--space-3); }

/* ───────── Button ───────── */

.c-btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-2);
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-soft),
              border-color var(--dur-fast) var(--ease-soft),
              color var(--dur-fast) var(--ease-soft),
              transform var(--dur-instant) var(--ease-soft);
  user-select: none;
  white-space: nowrap;
}
.c-btn:active { transform: translateY(1px); }
.c-btn:disabled, .c-btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }

.c-btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.c-btn--primary:hover { background: #FFA15B; border-color: #FFA15B; }

.c-btn--secondary {
  background: transparent;
  color: var(--ink-primary);
  border-color: var(--line-rule);
}
.c-btn--secondary:hover { background: var(--bg-overlay); border-color: var(--ink-secondary); }

.c-btn--ghost {
  background: transparent;
  color: var(--ink-secondary);
  border-color: transparent;
  padding: var(--space-2) var(--space-3);
}
.c-btn--ghost:hover { color: var(--ink-primary); background: var(--bg-overlay); }

.c-btn--icon {
  width: 36px; height: 36px;
  padding: 0;
  border-radius: var(--radius-2);
  background: transparent;
  color: var(--ink-secondary);
  border-color: transparent;
}
.c-btn--icon:hover { background: var(--bg-overlay); color: var(--ink-primary); }

.c-btn--block { width: 100%; padding-block: var(--space-4); font-size: var(--text-base); }

.c-btn__arrow {
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-soft);
}
.c-btn:hover .c-btn__arrow { transform: translateX(2px); }

/* ───────── Input + Select ───────── */

.c-field { display: flex; flex-direction: column; gap: var(--space-2); }

.c-field__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  text-transform: lowercase;
  color: var(--ink-muted);
}

.c-input,
.c-select {
  width: 100%;
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg-elev-1);
  border: 1px solid var(--line-rule);
  border-radius: var(--radius-2);
  color: var(--ink-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.2;
  transition: border-color var(--dur-fast) var(--ease-soft),
              background-color var(--dur-fast) var(--ease-soft);
}

.c-input::placeholder { color: var(--ink-muted); }

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

.c-input--with-icon { padding-right: var(--space-7); position: relative; }

.c-field__icon {
  position: absolute;
  right: var(--space-4);
  top: 50%; transform: translateY(-50%);
  color: var(--ink-muted);
  pointer-events: none;
  width: 18px; height: 18px;
}

/* select chevron */
.c-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237A8497' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  background-size: 12px 12px;
  padding-right: calc(var(--space-4) * 2 + 12px);
}

.c-field--with-icon-wrap { position: relative; }

/* ───────── Card ───────── */

.c-card {
  background: var(--bg-elev-1);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-0);
  padding: var(--space-6);
}

.c-card__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}

.c-card__title { margin-bottom: var(--space-3); }

.c-card__footer {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-hair);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
}

/* ───────── Badge ───────── */

.c-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  text-transform: uppercase;
  border-radius: var(--radius-1);
  background: var(--bg-overlay);
  color: var(--ink-secondary);
  border: 1px solid var(--line-hair);
}
.c-badge--accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.c-badge--cool   { background: rgba(46, 111, 167, 0.12); color: var(--cool); border-color: transparent; }
.c-badge--muted  { background: transparent; color: var(--ink-muted); }

/* ───────── Source chip ───────── */

.c-source {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-mono);
  color: var(--ink-muted);
}
.c-source::before { content: "↳"; color: var(--accent); }

/* ───────── Loader ───────── */
/* 24px dotted ring — 8 dots, accent leader, fading trail */

.c-loader {
  display: inline-block;
  position: relative;
  width: 24px; height: 24px;
  vertical-align: middle;
}

.c-loader__dot {
  position: absolute;
  width: 4px; height: 4px;
  top: 50%; left: 50%;
  margin-top: -2px; margin-left: -2px;
  border-radius: 50%;
  background: var(--ink-muted);
  opacity: 0.25;
  --i: 0;
  transform:
    rotate(calc(var(--i) * 45deg))
    translateY(-10px);
  animation: c-loader-pulse 1.2s linear infinite;
  animation-delay: calc(var(--i) * -0.15s);
}
.c-loader__dot:nth-child(1) { --i: 0; }
.c-loader__dot:nth-child(2) { --i: 1; }
.c-loader__dot:nth-child(3) { --i: 2; }
.c-loader__dot:nth-child(4) { --i: 3; }
.c-loader__dot:nth-child(5) { --i: 4; }
.c-loader__dot:nth-child(6) { --i: 5; }
.c-loader__dot:nth-child(7) { --i: 6; }
.c-loader__dot:nth-child(8) { --i: 7; }

@keyframes c-loader-pulse {
  0%   { opacity: 1; background: var(--accent); }
  20%  { opacity: 0.6; background: var(--ink-primary); }
  60%  { opacity: 0.25; background: var(--ink-muted); }
  100% { opacity: 0.25; background: var(--ink-muted); }
}

.c-loader--lg { width: 40px; height: 40px; }
.c-loader--lg .c-loader__dot { width: 6px; height: 6px; margin-top: -3px; margin-left: -3px; transform: rotate(calc(var(--i) * 45deg)) translateY(-16px); }

.c-loader-overlay {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-soft);
}
.c-loader-overlay[data-active="true"] { opacity: 1; pointer-events: auto; }

@media (prefers-reduced-motion: reduce) {
  .c-loader__dot { animation: none; opacity: 0.6; }
  .c-loader__dot:nth-child(1) { opacity: 1; background: var(--accent); }
}

/* ───────── Theme toggle ───────── */

.c-theme-toggle {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-2);
  color: var(--ink-secondary);
  border: 1px solid transparent;
  transition: background-color var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.c-theme-toggle:hover { background: var(--bg-overlay); color: var(--ink-primary); border-color: var(--line-hair); }
.c-theme-toggle svg { width: 18px; height: 18px; }
.c-theme-toggle .icon-sun { display: none; }
.c-theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .c-theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .c-theme-toggle .icon-moon { display: none; }

/* ───────── Status bar ───────── */

.c-statusbar {
  display: flex; align-items: center; gap: var(--space-5);
  padding: var(--space-3) var(--space-5);
  background: var(--bg-elev-2);
  border-top: 1px solid var(--line-hair);
  box-shadow: var(--shadow-statusbar);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
  text-transform: lowercase;
}
.c-statusbar__item { display: inline-flex; align-items: center; gap: var(--space-2); }
.c-statusbar__item::before { content: "//"; color: var(--ink-muted); opacity: 0.5; }
.c-statusbar__item:first-child::before { content: ""; }

.c-statusbar__mode {
  color: var(--accent);
  text-transform: uppercase;
}
.c-statusbar__mode::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  animation: c-pulse-dot 2s ease-in-out infinite;
}
@keyframes c-pulse-dot {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.45; }
}

.c-statusbar__spacer { flex: 1; }

/* ───────── Compliance line ───────── */

.c-compliance {
  display: flex; gap: var(--space-2); align-items: flex-start;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: var(--leading-xs);
  color: var(--ink-muted);
}
.c-compliance::before {
  content: "ⓘ";
  color: var(--accent);
  flex: none;
}

/* ───────── Divider ───────── */

.c-rule {
  border: 0;
  height: 1px;
  background: var(--line-hair);
  margin: var(--space-4) 0;
}

/* ───────── Numbered section eyebrow (codedgar borrow) ───────── */

.c-section-number {
  font-family: var(--font-mono);
  font-size: 64px;
  line-height: 1;
  color: var(--ink-muted);
  opacity: 0.18;
  font-weight: 500;
  user-select: none;
}