/* Prompt Box — wide Gemini-like prompt input for django CMS.
   Scoped under .prompt-box so it never leaks into the rest of the theme. */

.prompt-box {
  --pb-radius: 1.5rem;
  --pb-border: var(--border, #eaeaea);
  --pb-border-strong: var(--border-strong, #d4d4d4);
  --pb-canvas: var(--canvas, #ffffff);
  --pb-text: var(--text, #000000);
  --pb-subtext: var(--subtext, #666666);
  --pb-accent: var(--primary, var(--accent, #ff2a42));
  --pb-gap: 0.75rem;
  /* Elevation of the main field: a soft resting shadow plus a deeper one
     used on hover / focus so the input reads as the primary element. */
  --pb-shadow: 0 8px 24px rgba(15, 23, 42, 0.1), 0 2px 6px rgba(15, 23, 42, 0.06);
  --pb-shadow-deep: 0 12px 32px rgba(15, 23, 42, 0.14), 0 4px 10px rgba(15, 23, 42, 0.08);

  width: 100%;
  max-width: 100%;
}

.prompt-box__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--pb-text);
}

.prompt-box__form {
  margin: 0;
}

/* ── Field ─────────────────────────────────────────────────────────────── */

.prompt-box__field {
  display: flex;
  align-items: flex-end;
  gap: var(--pb-gap);
  padding: 0.75rem 0.75rem 0.75rem 1.25rem;
  background: var(--pb-canvas);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  box-shadow: var(--pb-shadow);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.prompt-box__field:hover {
  border-color: var(--pb-border-strong);
  box-shadow: var(--pb-shadow-deep);
}

.prompt-box__field:focus-within {
  border-color: var(--pb-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pb-accent) 18%, transparent),
    var(--pb-shadow-deep);
}

.prompt-box__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.375rem 0;
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--pb-text);
  background: transparent;
  border: 0;
  outline: none;
  resize: none;
  overflow-y: auto;
  max-height: 12rem;
}

.prompt-box__input::placeholder {
  color: var(--pb-subtext);
  opacity: 1;
}

/* ── Send button ───────────────────────────────────────────────────────── */

.prompt-box__send {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  padding: 0.5rem 1.125rem;
  white-space: nowrap;
}

.prompt-box__send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.prompt-box__send:not(:disabled):hover {
  opacity: 1;
}

/* ── Suggestion chips ──────────────────────────────────────────────────── */

.prompt-box__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.875rem;
}

.prompt-box__chip {
  max-width: 100%;
  padding: 0.375rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--pb-text);
  background: transparent;
  border: 1px solid var(--pb-border);
  border-radius: 9999px;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.prompt-box__chip:hover,
.prompt-box__chip:focus {
  color: var(--pb-accent);
  background: color-mix(in srgb, var(--pb-accent) 8%, transparent);
  border-color: var(--pb-accent);
  outline: none;
}

/* ── Helper text ───────────────────────────────────────────────────────── */

.prompt-box__helper {
  margin: 0.625rem 0 0;
  font-size: 0.8125rem;
  color: var(--pb-subtext);
}

@media (max-width: 575.98px) {
  .prompt-box__field {
    padding: 0.625rem 0.625rem 0.625rem 1rem;
    border-radius: 1.125rem;
  }

  .prompt-box__send-label {
    display: none;
  }

  .prompt-box__send {
    padding: 0.5rem 0.75rem;
  }
}

/* ── Dark surfaces ────────────────────────────────────────────────────────
   On a #000 canvas a neutral drop shadow is invisible, so elevation is
   reinforced with a hairline glow. Opt-in via the theme's data-theme. */
[data-theme="dark"] .prompt-box {
  --pb-shadow: 0 0 0 1px rgba(255, 255, 255, 0.07), 0 8px 24px rgba(0, 0, 0, 0.65);
  --pb-shadow-deep: 0 0 0 1px rgba(255, 255, 255, 0.14), 0 12px 32px rgba(0, 0, 0, 0.75);
}