/*
Theme Name: Helix
Theme URI: https://snails.intelligres.com/
Author: Snails
Description: A field-journal theme for a natural-history blog about snails. Parchment paper, a moss band, and a single spiral.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 7.1
Requires PHP: 8.3
Text Domain: helix
*/

:root {
  --parchment: #f3ecdf;
  --paper: #fbf7f0;
  --ink: #1b241c;
  --muted: #5d675e;
  --line: #ddd3c2;
  --moss: #234b38;
  --moss-deep: #173226;
  --copper: #b25b2e;
  --shell: #e6d3b2;
  --measure: 40rem;
  --wrap: 68rem;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(ellipse at top, rgba(255, 252, 246, 0.7), transparent 42%),
    var(--parchment);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.65;
}

a {
  color: var(--moss);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--copper);
}

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--paper);
  color: var(--ink);
  padding: 0.5rem 0.8rem;
  z-index: 5;
}

.skip:focus {
  top: 0.5rem;
}

.wrap {
  width: min(var(--wrap), calc(100% - 2.4rem));
  margin-inline: auto;
}

.mast {
  background:
    linear-gradient(180deg, rgba(255, 244, 220, 0.06), transparent 40%),
    var(--moss-deep);
  color: #f6f0e4;
}

.mast a {
  color: inherit;
  text-decoration: none;
}

.mast-inner {
  width: min(var(--wrap), calc(100% - 2.4rem));
  margin-inline: auto;
  padding: 1.6rem 0 1.2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.spiral {
  width: 3.4rem;
  height: 3.4rem;
  flex: none;
}

.brand-kicker,
.kicker,
.entry-cat,
.prose-kicker {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}

.brand-kicker {
  display: block;
  color: var(--shell);
}

.brand-name {
  display: block;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 0.9;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.tagline {
  margin: 0.85rem 0 0;
  max-width: 36rem;
  color: #efe4d2;
  font-style: italic;
}

.fact {
  margin: 0.35rem 0 0;
  color: var(--shell);
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.nav {
  margin-top: 1.15rem;
  border-top: 1px solid rgba(246, 240, 228, 0.2);
  padding-top: 0.7rem;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu a {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #f6f0e4;
}

.menu .current-menu-item > a,
.menu .current-cat > a,
.menu a:hover {
  color: #f0c7a4;
}

.searchform {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.9rem;
  max-width: 22rem;
}

.searchform label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.searchform input[type="search"] {
  flex: 1;
  border: 0;
  border-bottom: 1px solid rgba(246, 240, 228, 0.45);
  background: transparent;
  color: #f6f0e4;
  font-family: var(--serif);
  font-size: 1rem;
  padding: 0.35rem 0;
}

.searchform input[type="search"]::placeholder {
  color: rgba(246, 240, 228, 0.65);
}

.searchform button {
  border: 1px solid rgba(246, 240, 228, 0.4);
  background: transparent;
  color: #f6f0e4;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

.searchform button:hover {
  background: rgba(246, 240, 228, 0.08);
}

.page {
  padding: 2.2rem 0 3.5rem;
}

.intro {
  max-width: 40rem;
  margin-bottom: 2rem;
}

.intro h1,
.page-title {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0.2rem 0 0.6rem;
}

.kicker {
  color: var(--copper);
  margin: 0;
}

.lede {
  font-size: 1.22rem;
  color: var(--muted);
  margin: 0;
}

.entries {
  display: flex;
  flex-direction: column;
}

.entry {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 1.25rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

.entry time {
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding-top: 0.25rem;
}

.entry h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  line-height: 1.2;
  font-weight: 500;
  margin: 0.15rem 0 0.35rem;
}

.entry h2 a {
  color: var(--ink);
  text-decoration: none;
}

.entry h2 a:hover {
  color: var(--copper);
}

.entry-cat {
  margin: 0;
  color: var(--copper);
}

.entry-cat a {
  color: inherit;
  text-decoration: none;
}

.excerpt {
  margin: 0;
  color: var(--muted);
}

.single,
.page-content,
.empty,
.not-found {
  max-width: var(--measure);
}

.prose-kicker {
  color: var(--copper);
  margin: 0 0 0.4rem;
}

.prose-kicker a {
  color: inherit;
  text-decoration: none;
}

.single h1,
.page-content h1,
.not-found h1 {
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1.08;
  font-weight: 500;
  letter-spacing: -0.025em;
  margin: 0 0 0.6rem;
}

.byline {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.prose h2 {
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.25;
  margin: 1.8rem 0 0.5rem;
}

.prose p,
.prose li {
  font-size: 1.12rem;
}

.prose p {
  margin: 0 0 1rem;
}

.prose > p:first-of-type::first-letter {
  float: left;
  font-size: 3.3rem;
  line-height: 0.8;
  padding: 0.15rem 0.45rem 0 0;
  color: var(--moss);
  font-weight: 500;
}

.prose a {
  color: var(--moss);
}

.prose ul,
.prose ol {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

.prose li + li {
  margin-top: 0.3rem;
}

.prose blockquote {
  margin: 1.2rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--copper);
  color: var(--muted);
  font-style: italic;
}

.prose img {
  max-width: 100%;
  height: auto;
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 1rem;
}

.post-nav a {
  color: var(--ink);
  text-decoration: none;
}

.post-nav a:hover {
  color: var(--copper);
}

.nav-next {
  text-align: right;
}

.pager {
  margin-top: 1.5rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.pager .nav-links {
  display: flex;
  gap: 0.8rem;
}

.comments {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.comments h2,
.comment-reply-title {
  font-size: 1.4rem;
  font-weight: 500;
}

.comment-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.comment-list li {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1rem;
  padding: 0.55rem 0.7rem;
}

.comment-form textarea {
  min-height: 8rem;
}

.comment-form .submit,
button,
input[type="submit"] {
  background: var(--moss);
  color: #f6f0e4;
  border: 0;
  font-family: var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  padding: 0.7rem 1rem;
  cursor: pointer;
}

.comment-form .submit:hover {
  background: var(--copper);
}

.colophon {
  background: var(--moss-deep);
  color: #eadfce;
  padding: 1.6rem 0 2rem;
  font-size: 0.95rem;
}

.colophon a {
  color: #f0c7a4;
}

.colophon-mark {
  font-style: italic;
  margin: 0 0 0.3rem;
}

.colophon p {
  margin: 0.2rem 0;
}

@media (max-width: 700px) {
  body {
    font-size: 1.05rem;
  }

  .entry {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .nav-next {
    text-align: left;
  }
}

@media print {
  .mast,
  .colophon,
  .searchform,
  .nav,
  .post-nav,
  .comments,
  .pager {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}