/* Forum. Colours and type come from ../shared/theme.css. */

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(62deg, rgba(28, 25, 21, 0.014) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(-62deg, rgba(28, 25, 21, 0.012) 0 1px, transparent 1px 13px);
  font-family: var(--serif);
  color: var(--ink);
}

#app {
  width: min(760px, calc(100% - 48px));
  margin: 28px auto 96px;
}

/* ---------- head ---------- */

.forum-head { margin-bottom: 26px; }
.eyebrow {
  display: inline-block;
  padding: 3px 9px;
  background: var(--cinnabar);
  color: var(--paper-2);
  border-radius: var(--radius);
  font-size: 13px;
  letter-spacing: 0.12em;
}
.forum-head h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 600;
}
.forum-sub {
  margin: 10px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-strong);
  box-shadow: 0 3px 0 -2px var(--line);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------- shared controls ---------- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper-2);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.btn-primary:hover:not(:disabled) { background: var(--cinnabar); border-color: var(--cinnabar); }
.btn-primary:disabled { background: transparent; color: var(--ink-3); border-color: var(--line); cursor: default; }

.btn-ghost {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  cursor: pointer;
}
.btn-ghost:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

.btn-text {
  margin-top: 6px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink-3);
  font: inherit;
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.btn-text:hover { color: var(--cinnabar); }

.field {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-2);
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  line-height: 1.6;
}
.field:focus { outline: 2px solid var(--cinnabar); outline-offset: -2px; }
.field.area { resize: vertical; min-height: 92px; }

.form-error { margin: 0; font-size: 14px; color: var(--cinnabar); }
.notice { margin: 0; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.empty {
  margin: 0;
  padding: 36px 20px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  text-align: center;
  font-size: 17px;
  color: var(--ink-3);
}

/* ---------- composer ---------- */

.composer {
  margin-bottom: 26px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cinnabar);
  border-radius: var(--radius);
  background: var(--paper-2);
}
.signin-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.signin-row .notice { flex: 1; min-width: 220px; }

.thread-form { display: flex; flex-direction: column; gap: 12px; }
.form-actions { display: flex; gap: 10px; }

/* ---------- the list ---------- */

.threads { display: flex; flex-direction: column; gap: 10px; }

.thread {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-2);
}
.thread--open { border-color: var(--line-strong); border-left: 3px solid var(--cinnabar); }

.thread-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.thread-head:hover .thread-title { color: var(--cinnabar); }

/* The reply count, carried like a tally in the margin of a page. */
.thread-count {
  flex: none;
  width: 54px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2px 0 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-2);
  line-height: 1.2;
}
.thread-count strong { font-size: 19px; font-weight: 600; }
.thread-count-label {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.thread-mid { min-width: 0; }
.thread-title {
  display: block;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
}

.byline {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}
.byline-name { color: var(--ink-2); }
.byline-sep { margin: 0 6px; }

.thread-body {
  padding: 0 16px 16px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.post-text {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.post-text:last-of-type { margin-bottom: 0; }

.replies { padding: 4px 16px 0; }
.reply {
  padding: 12px 0 12px 14px;
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
}
.reply:last-child { border-bottom: 0; }
.reply .byline { margin-bottom: 6px; }

.reply-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 16px 18px;
}
.reply-form .btn-primary { align-self: flex-start; }
.thread .signin-row { padding: 14px 16px 18px; }
.thread .notice { font-size: 14px; }

@media (max-width: 600px) {
  #app { width: min(100% - 24px, 760px); margin-top: 16px; }
  .composer { padding: 16px; }
  .thread-head { gap: 12px; padding: 12px; }
  .thread-count { width: 46px; }
  .thread-title { font-size: 17px; }
  .form-actions { flex-direction: column; }
  .form-actions .btn-primary, .form-actions .btn-ghost { width: 100%; }
}

/* ---------- a thread on its own ---------- */

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
}
.back-link:hover { border-color: var(--cinnabar); color: var(--cinnabar); }

/* The row is an anchor so that its address can be copied; it must not look
   like body copy with a link in it. */
.thread-head { text-decoration: none; color: inherit; }

.thread--open .thread-body { padding-top: 18px; }
.thread-title--full {
  display: block;
  margin: 0;
  font-size: clamp(23px, 3.4vw, 29px);
  font-weight: 600;
  line-height: 1.3;
}
.thread--open .thread-body .byline { margin-bottom: 14px; }

/* ---------- screenshots ---------- */

.attach { display: flex; flex-direction: column; gap: 10px; }
.attach-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

/* A label standing in for the file input, which is hidden rather than styled:
   every browser draws that control differently and none of them can be made
   to match the buttons beside it. */
.attach-pick {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  font-size: 14px;
}
.attach-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
/* The label is not focusable, so without this a keyboard shows nothing at all
   when the hidden input inside it has focus. */
.attach-pick:has(.attach-input:focus-visible) {
  border-color: var(--cinnabar);
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}
.attach-hint { font-size: 13px; color: var(--ink-3); }

.attach-strip { display: flex; flex-wrap: wrap; gap: 10px; }
.attach-thumb {
  position: relative;
  width: 104px;
  height: 104px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  overflow: hidden;
}
.attach-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.attach-drop {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: var(--radius);
  background: rgba(28, 25, 21, 0.72);
  color: #fff;
  font: inherit;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}
.attach-drop:hover { background: var(--cinnabar); }

/* Dropping a file on the textarea is the other half of pasting one. */
.field.dropping { outline: 2px dashed var(--cinnabar); outline-offset: -2px; }

/* Posted images, at a readable size rather than as thumbnails: a screenshot
   of a keyboard is the message, not an illustration of it. Each is a link to
   the file itself, for the detail this size loses.

   A column, one image to a row. Side by side they were half the size for no
   gain — a post rarely carries four — and align-items keeps each row no wider
   than the picture in it. */
.post-images {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin: 14px 0 0;
}
.post-image { display: block; max-width: 100%; line-height: 0; }
/* The frame is on the image, not on the link around it. A link laid out as a
   flex item takes its width from the file's own pixels — a percentage inside
   max-width leaves that contribution indeterminate and the browser falls back
   to the intrinsic size — so a frame drawn on the link hung a pale margin off
   every landscape shot. On the image it fits whatever is actually shown. */
.post-image img {
  display: block;
  max-width: 520px;
  max-height: 420px;
  width: auto;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.post-image:hover img { border-color: var(--cinnabar); }

@media (max-width: 620px) {
  .post-image img { max-width: 100%; }
}