/*
  Mobile refinements
  ------------------
  Tailwind handles the main responsive layouts in the HTML.
  This file fine-tunes the shared experience below the md breakpoint.
*/

@media (max-width: 767px) {
  /* Prevent a wide child from creating accidental side-to-side scrolling. */
  body {
    overflow-x: hidden;
  }

  section {
    scroll-margin-top: 5rem;
  }

  /* MOBILE HEADER + MENU */
  .site-header nav {
    position: relative;
  }

  .site-header nav > a:first-child {
    max-width: calc(100% - 5.5rem);
    line-height: 1.2;
  }

  /* 44px-ish controls provide a comfortable minimum touch target. */
  .menu-button {
    min-width: 4.5rem;
    min-height: 2.75rem;
  }

  /* JavaScript removes `hidden`; this rule turns the revealed list into flex. */
  #navigation-menu:not(.hidden) {
    display: flex;
    border-top: 1px solid var(--color-border);
    margin-top: 0.25rem;
    padding-top: 1rem;
  }

  /* Give each navigation link a larger area to tap. */
  #navigation-menu a {
    display: block;
    border-radius: 0.5rem;
    padding: 0.6rem 0.25rem;
  }

  #navigation-menu a:active {
    background: var(--color-surface-soft);
  }

  /* MOBILE TYPE SCALE */
  /* clamp() grows text with screen width but keeps it inside safe limits. */
  main h1 {
    font-size: clamp(2.6rem, 12vw, 4rem);
    overflow-wrap: anywhere;
  }

  main h2 {
    font-size: clamp(2rem, 9vw, 3rem);
  }

  main h3 {
    overflow-wrap: anywhere;
  }

  /* Full-width calls to action are easier to scan and tap on narrow screens. */
  main .button-primary,
  main .button-secondary,
  main button.button-primary {
    min-height: 3rem;
    width: 100%;
  }

  /* A subtle mobile shadow separates stacked cards from the page background. */
  .card-surface {
    box-shadow: 0 0.5rem 1.5rem rgb(23 61 43 / 7%);
  }

  /* MOBILE FORMS */
  input,
  select,
  textarea {
    /* A 16px minimum prevents unwanted zoom on iPhones. */
    font-size: 1rem;
  }

  textarea {
    min-height: 9rem;
    resize: vertical;
  }

  /* MOBILE FOOTER */
  .site-footer {
    text-align: center;
  }

  .site-footer address {
    font-style: normal;
  }
}

/* Extra-small phones need slightly tighter spacing and smaller hero text. */
@media (max-width: 420px) {
  .site-header nav {
    padding-inline: 1rem;
  }

  main h1 {
    font-size: 2.5rem;
  }

  .card-surface {
    border-radius: 1rem;
    padding: 1.25rem;
  }
}