/* =========================================================
   POSTHUMOUS REGRET — GUESTBOOK
   ========================================================= */

:root {
  --background-color: #111111;
  --panel-color: #1b1e24;
  --input-color: #111111;

  --text-color: #f4f4f4;
  --muted-color: #77777c;

  --accent-color: #f5e85c;
  --border-color: #343840;

  --font-main: Verdana, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco,
               Consolas, "Liberation Mono", monospace;
}


/* PAGE
   ========================================================= */

html {
  margin: 0;
  padding: 0;
  background: var(--background-color);
}

body {
  box-sizing: border-box;
  margin: 0;

  /* Space between iframe edge and guestbook content */
  padding: 25px 40px;

  background: var(--background-color);
  color: var(--text-color);
  font-family: var(--font-main);
}


/* GUESTBOOK TITLE
   ========================================================= */

h1 {
  font-size: 0;
  margin: 20px 0 30px 0;
}

h1::after {
  content: "Guestbook";
  display: block;

  font-family: var(--font-main);
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.2;

  color: var(--text-color);
}


/* MAIN GUESTBOOK / FORM CONTAINER
   ========================================================= */

form,
.guestbook-form,
.guestbooks___form {
  box-sizing: border-box;

  width: 100%;
  padding: 28px 30px;

  background: var(--panel-color);

  border: 2px solid var(--border-color);
  border-radius: 20px;
}


/* TEXT INPUTS
   ========================================================= */

input[type="text"],
input[type="url"],
input[type="email"],
textarea {
  box-sizing: border-box;

  display: block;
  width: 100%;

  background: var(--input-color);
  color: var(--text-color);

  border: 2px solid var(--border-color);
  border-radius: 14px;

  padding: 16px 18px;

  font-family: var(--font-mono);
  font-size: 1rem;

  outline: none;

  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}


/* FIELD SPACING
   ========================================================= */

input[type="text"],
input[type="url"],
input[type="email"] {
  min-height: 58px;
  margin-bottom: 24px;
}

textarea {
  min-height: 110px;
  margin-bottom: 24px;
  resize: vertical;
}


/* PLACEHOLDERS
   ========================================================= */

input::placeholder,
textarea::placeholder {
  color: var(--muted-color);

  font-family: var(--font-mono);
  font-style: italic;

  opacity: 1;
}


/* INPUT FOCUS
   ========================================================= */

input:focus,
textarea:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 1px var(--accent-color);
}


/* BUTTON
   ========================================================= */

button,
input[type="submit"] {
  appearance: none;

  background: var(--accent-color);
  color: #111111;

  border: 0;
  border-radius: 10px;

  padding: 11px 22px;

  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;

  cursor: pointer;
}

button:hover,
input[type="submit"]:hover {
  filter: brightness(1.08);
}


/* LINKS
   ========================================================= */

a {
  color: var(--accent-color);
  cursor: pointer;
  text-decoration: underline;
}

a:hover {
  text-decoration: wavy underline;
}


/* GUESTBOOK MESSAGES
   ========================================================= */

.guestbook-message,
.guestbooks___message {
  margin-top: 22px;
  padding: 18px 20px;

  background: var(--panel-color);

  border: 1px solid var(--border-color);
  border-radius: 12px;
}


/* REPLIES
   ========================================================= */

.guestbook-message-reply {
  margin-left: 2.5rem;
  padding-left: 1rem;

  border-left: 3px solid var(--accent-color);

  opacity: 0.95;
}

.guestbook-message-reply blockquote {
  margin: 0;
  padding-left: 0;
  border-left: none;
}


/* PROOF OF WORK
   ========================================================= */

.guestbooks___pow-container {
  margin: 0.75em 0;
}

.guestbooks___pow-checkbox-label {
  display: inline-flex;
  align-items: center;

  gap: 0.5em;

  color: var(--text-color);

  cursor: pointer;
  user-select: none;

  font-size: 0.95em;
}

.guestbooks___pow-checkbox-label input[type="checkbox"] {
  width: 1.1em;
  height: 1.1em;

  accent-color: var(--accent-color);

  cursor: pointer;
}

.guestbooks___pow-label-text--loading {
  opacity: 0.65;
}

.guestbooks___pow-label-text--verified {
  color: var(--accent-color);
}

.guestbooks___pow-label-text--error {
  color: #e57373;
}


/* MOBILE
   ========================================================= */

@media (max-width: 600px) {

  body {
    /* Smaller iframe-to-content gap on phones */
    padding: 18px;
  }

  h1 {
    margin: 15px 0 24px 0;
  }

  h1::after {
    font-size: 1.7rem;
  }

  form,
  .guestbook-form,
  .guestbooks___form {
    padding: 22px 18px;
    border-radius: 18px;
  }

  input[type="text"],
  input[type="url"],
  input[type="email"],
  textarea {
    padding: 14px 16px;
    font-size: 0.95rem;
  }

  .guestbook-message-reply {
    margin-left: 1rem;
  }
}