/* lakenote 湖记
   Quiet, editorial, tactile. Paper, ink, lake.
   Sharp corners, no shadows, no promotional color. */

:root {
  --paper: #f4f0e8;
  --paper-deep: #ebe4d8;
  --cream: #fbf9f5;
  --ink: #1b1916;
  --ink-soft: #4a453e;
  --mute: #5f5952;
  --quiet: #8a8378;
  --line: #ddd6c8;
  --lake: #2f4a46;
  --lake-deep: #243a37;
  --lake-soft: #3e5c57;
  --sand: #c4b8a5;
  --font-serif: "Source Serif Pro", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans: "Source Sans 3", "Noto Sans CJK SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --measure: 38rem;
  --content: 72rem;
  --pad: clamp(1.35rem, 4vw, 3.25rem);
  --gap: clamp(3.5rem, 8vw, 7rem);
}

@font-face {
  font-family: "Source Serif Pro";
  src: url("../fonts/source-serif-pro-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Serif Pro";
  src: url("../fonts/source-serif-pro-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "Source Serif Pro";
  src: url("../fonts/source-serif-pro-semibold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Sans 3";
  src: url("../fonts/source-sans-3.woff2") format("woff2") tech("variations"),
       url("../fonts/source-sans-3.woff2") format("woff2-variations"),
       url("../fonts/source-sans-3.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Serif CJK SC";
  src: url("../fonts/noto-serif-cjk-sc.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Sans CJK SC";
  src: url("../fonts/noto-sans-cjk-sc.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image: url("../assets/textures/paper-grain.jpg");
  background-repeat: repeat;
  background-size: 256px 256px;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.65;
  min-height: 100%;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1,
h2,
h3,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

a {
  color: var(--lake);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  text-decoration-color: transparent;
  transition: text-decoration-color 160ms ease, color 160ms ease;
}

a:hover {
  text-decoration-color: currentColor;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: 3px;
}

::selection {
  background: #d9ccb6;
  color: var(--ink);
}

.skip {
  position: absolute;
  left: var(--pad);
  top: -100px;
  background: var(--ink);
  color: var(--cream);
  padding: 0.4rem 0.8rem;
  z-index: 20;
}

.skip:focus {
  top: 0.6rem;
}

.wrap {
  width: min(var(--content), 100%);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* Header
   -------------------------------------------------- */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.85rem 2rem;
  padding: 1.35rem var(--pad) 1.2rem;
  width: min(var(--content), 100%);
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: lowercase;
  color: var(--ink);
  text-decoration: none;
  line-height: 1;
}

.wordmark:hover {
  color: var(--lake);
  text-decoration: none;
}

.wordmark__zh {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--mute);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.45rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: none;
}

.nav a[aria-current="page"] {
  box-shadow: inset 0 -1px 0 var(--ink);
}

/* Masthead
   -------------------------------------------------- */

.masthead {
  padding: clamp(3.25rem, 10vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.masthead__en {
  font-family: var(--font-serif);
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: lowercase;
  color: var(--mute);
}

.masthead__zh {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.75rem, 8vw, 4.75rem);
  letter-spacing: 0.32em;
  line-height: 1.15;
  margin-top: 0.35rem;
  color: var(--ink);
}

.rule {
  width: 3rem;
  height: 1px;
  background: var(--sand);
  border: 0;
  margin: 1.6rem 0 1.35rem;
}

.masthead__tag {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--lake);
  max-width: var(--measure);
}

.masthead__tag .zh {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-serif);
  letter-spacing: 0.12em;
}

.lede {
  font-family: var(--font-serif);
  font-size: clamp(1.08rem, 2.1vw, 1.28rem);
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: var(--measure);
  margin-top: 2rem;
}

.lede .zh {
  margin-top: 1rem;
  line-height: 1.95;
}

.status {
  max-width: var(--measure);
  margin-top: 1.75rem;
  font-size: 0.92rem;
  color: var(--mute);
  line-height: 1.7;
}

.status .zh {
  margin-top: 0.4rem;
}

/* Sections
   -------------------------------------------------- */

.section {
  padding: var(--gap) 0 0;
}

.section-label {
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 1.6rem;
}

.section-label .zh {
  display: inline;
  margin-left: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: none;
  font-style: normal;
}

/* Origin cards
   -------------------------------------------------- */

.origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.25rem, 5vw, 3.5rem);
}

@media (min-width: 800px) {
  .origin-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

.origin-card {
  display: block;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}

.origin-card:hover {
  text-decoration: none;
}

.origin-card__media {
  background: var(--paper-deep);
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.origin-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms ease;
}

.origin-card:hover .origin-card__media img,
.origin-card:focus-visible .origin-card__media img {
  transform: scale(1.03);
}

.origin-card__kicker {
  margin-top: 1.05rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}

.origin-card__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.45rem, 2.4vw, 1.8rem);
  margin-top: 0.25rem;
  letter-spacing: 0.02em;
}

.origin-card__title .zh {
  display: block;
  font-size: 0.95em;
  margin-top: 0.15rem;
  letter-spacing: 0.06em;
}

.origin-card__sum {
  margin-top: 0.85rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.7;
}

.origin-card__sum .zh {
  margin-top: 0.45rem;
  line-height: 1.85;
}

.origin-card__more {
  margin-top: 0.9rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lake);
}

.origin-card__more .zh {
  letter-spacing: 0.06em;
  text-transform: none;
  margin-left: 0.15rem;
}

.origin-card:hover .origin-card__more {
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

/* Selected list
   -------------------------------------------------- */

.selected-intro {
  max-width: var(--measure);
  margin: -0.4rem 0 1.75rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.75;
}

.selected-intro .zh {
  margin-top: 0.5rem;
  line-height: 1.9;
}

.selected-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.item {
  display: grid;
  grid-template-columns: 4.25rem 1fr;
  gap: 1.1rem 1.25rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

@media (min-width: 720px) {
  .item {
    grid-template-columns: 5.5rem 1fr auto;
    gap: 1.25rem 1.75rem;
    padding: 1.35rem 0;
  }
}

.item__swatch {
  width: 4.25rem;
  height: 5.25rem;
  background: var(--paper-deep);
  overflow: hidden;
}

@media (min-width: 720px) {
  .item__swatch {
    width: 5.5rem;
    height: 6.75rem;
  }
}

.item__swatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.item__poet {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.item__poet .zh {
  display: inline;
  margin-left: 0.7rem;
  letter-spacing: 0.04em;
}

.item__name {
  margin-top: 0.2rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.item__name .zh {
  display: block;
  margin-top: 0.15rem;
}

.item__place {
  margin-top: 0.45rem;
  font-size: 0.78rem;
  color: var(--mute);
  letter-spacing: 0.04em;
}

.item__flag {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin-top: 0.65rem;
  grid-column: 2;
}

.item__flag .zh {
  letter-spacing: 0.08em;
  text-transform: none;
}

@media (min-width: 720px) {
  .item__flag {
    grid-column: auto;
    margin-top: 0;
    align-self: start;
    padding-top: 0.45rem;
    text-align: right;
  }
}

.footnote {
  margin-top: var(--gap);
  max-width: var(--measure);
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--mute);
}

.footnote .zh {
  display: block;
  margin-top: 0.55rem;
}

/* Interior pages (origin, note, write)
   -------------------------------------------------- */

.page-hero {
  padding: clamp(2.25rem, 6vw, 4rem) 0 0;
}

.page-hero__media {
  background: var(--paper-deep);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin: 0 calc(var(--pad) * -1);
}

@media (min-width: 800px) {
  .page-hero__media {
    margin: 0;
    aspect-ratio: 16 / 8.5;
  }
}

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero figcaption {
  margin-top: 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.kicker {
  margin-top: 1.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-top: 0.3rem;
}

.page-title .zh {
  display: block;
  margin-top: 0.25rem;
  letter-spacing: 0.06em;
  font-size: 0.9em;
}

.prose {
  max-width: var(--measure);
  padding-top: 0.5rem;
  padding-bottom: 1rem;
}

.prose .pair {
  margin-top: 1.65rem;
}

.prose .en {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.prose .zh {
  font-family: var(--font-serif);
  margin-top: 0.7rem;
  font-size: 1.05rem;
  line-height: 1.95;
  color: var(--ink-soft);
}

.prose h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  margin-top: 2.75rem;
  margin-bottom: -0.4rem;
  color: var(--ink);
}

.working-list {
  list-style: none;
  padding: 0;
  margin: 2.5rem 0 0;
  border-top: 1px solid var(--line);
  max-width: 40rem;
}

.working-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
}

.working-list .poet {
  letter-spacing: 0.02em;
}

.working-list .kind {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--mute);
  text-align: right;
}

.mailbox {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-top: 2.25rem;
  color: var(--ink);
}

.mailbox a {
  color: var(--ink);
  text-decoration-color: var(--sand);
}

.caution {
  margin-top: 0.85rem;
  font-size: 0.92rem;
  color: var(--mute);
  max-width: var(--measure);
  line-height: 1.7;
}

/* Footer
   -------------------------------------------------- */

.site-footer {
  margin-top: var(--gap);
  padding: 2rem var(--pad) 3rem;
  width: min(var(--content), 100%);
  margin-left: auto;
  margin-right: auto;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 0.8rem;
  line-height: 1.7;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.site-footer a {
  color: var(--mute);
}

.site-footer__brand {
  font-family: var(--font-serif);
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

/* Reduced motion
   -------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .origin-card__media img {
    transition: none;
  }

  .origin-card:hover .origin-card__media img,
  .origin-card:focus-visible .origin-card__media img {
    transform: none;
  }
}

/* Small screens: slightly tighter nav tracking */
@media (max-width: 560px) {
  .nav {
    letter-spacing: 0.1em;
    gap: 0.3rem 1.1rem;
    font-size: 0.75rem;
  }

  .item {
    grid-template-columns: 3.6rem 1fr;
    gap: 0.9rem 1rem;
  }

  .item__swatch {
    width: 3.6rem;
    height: 4.5rem;
  }

  .item__poet {
    font-size: 1.2rem;
  }
}

.nowrap {
  white-space: nowrap;
}