/* -------------------------------------------------------------------------- */
/*   06-components/_start.css: the start screen (components/start-screen.html) */
/*   Hero tile, title, one-line lede, search box, three example searches,   */
/*   "How it works" and, in demo mode, one quiet note.                        */
/* -------------------------------------------------------------------------- */

.start {
  width: min(var(--width-measure), 100%);
  min-height: 100%;
  margin: 0 auto;
  padding: var(--space-7) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  text-align: center;
}

.start__title {
  margin: 0;
  font-size: var(--font-size-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

.start__lede {
  margin: calc(-1 * var(--space-2)) 0 var(--space-2);
  max-width: 30rem;
  font-size: var(--font-size-title);
  color: var(--color-ink-muted);
}

/* The search box: a white pill with the card shadow and a Search button. */
.search {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-1) var(--space-1) var(--space-1) var(--space-5);
  background-color: var(--color-surface);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--duration-hover) var(--ease-hover);
}

.search:focus-within {
  box-shadow: var(--shadow-card), 0 0 0 2px var(--color-accent);
}

.search__input {
  flex: 1 1 auto;
  min-width: 0;
  height: var(--button-height);
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-ink);
  font-size: var(--font-size-title);
}

.search__input:focus-visible {
  outline: none; /* the box shows focus */
}

.search__input::placeholder {
  color: var(--color-ink-faint);
}

.search__submit {
  flex: 0 0 auto;
  min-height: calc(var(--button-height) - var(--space-1));
  border-radius: var(--radius-pill);
}

/* "@" suggestions under the box. */
.suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1000;
  margin-top: var(--space-2);
  max-height: var(--height-list-max);
  overflow-y: auto;
  text-align: left;
}

.suggestions[hidden] {
  display: none;
}

/* Example searches: small cards, each labelled with its intent. */
.start__examples {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  width: 100%;
}

.example {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  padding: var(--space-3);
  border: none;
  border-radius: var(--radius-button);
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-size: var(--font-size-sm);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--duration-hover) var(--ease-hover);
}

.example:hover {
  background-color: var(--color-accent-wash);
}

.example__intent {
  font-size: var(--font-size-caption);
  color: var(--color-accent);
}

.example__text {
  font-weight: var(--font-weight-semibold);
}

/* How it works: three numbered lines. */
.start__how {
  width: 100%;
  margin-top: var(--space-3);
  text-align: left;
}

.start__how .label {
  margin: 0 0 var(--space-2);
}

.start__how ol {
  margin: 0;
  padding: 0 0 0 var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-ink-muted);
}

.start__how li + li {
  margin-top: var(--space-1);
}

.start__demo {
  margin: var(--space-2) 0 0;
  font-size: var(--font-size-caption);
  color: var(--color-ink-muted);
}

@media (max-width: 560px) {
  .start__examples {
    grid-template-columns: 1fr;
  }
}