/* ==========================================================================
   张某某 · 软件作品
   设计概念：整页按一份软件目录排版。
   人读的文字用系统无衬线，机器读的元信息（版本号、平台）用等宽并右对齐成列。
   全部使用系统字体栈 —— 不引外链字体，国内首屏不会被墙住的 CDN 拖慢。
   ========================================================================== */

:root {
  --paper:      #FCFCFA;
  --ink:        #191A1C;
  --ink-soft:   #5E6166;
  --rule:       #E6E6E2;
  --accent:     #0E7C7B;

  --max:    62rem;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);

  --sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #101112;
    --ink:      #EDEDEA;
    --ink-soft: #9A9D9F;
    --rule:     #26282A;
    --accent:   #4FB3AE;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* --- 顶栏 ---------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.6) blur(10px);
  -webkit-backdrop-filter: saturate(1.6) blur(10px);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4rem;
}

.brand {
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
}

.nav a {
  position: relative;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.18s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}

.nav a:hover,
.nav a:focus-visible { color: var(--ink); }

.nav a:hover::after,
.nav a:focus-visible::after { transform: scaleX(1); }

/* --- Hero ---------------------------------------------------------------- */

.hero { padding-block: clamp(4rem, 12vw, 8rem) clamp(3rem, 8vw, 5rem); }

.eyebrow {
  margin: 0 0 1.25rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 1.5rem;
  max-width: 18em;
  font-size: clamp(2rem, 6.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--ink-soft);
}

/* --- 区块 ---------------------------------------------------------------- */

.section { padding-block: clamp(2.5rem, 6vw, 4rem); }

.section-label {
  margin: 0 0 1.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* --- 作品列表 —— 页面唯一的主角 ------------------------------------------ */

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

.work {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem 2.5rem;
  align-items: start;
  padding-block: 1.5rem;
  border-top: 1px solid var(--rule);
}

.work:last-child { border-bottom: 1px solid var(--rule); }

.work-name {
  margin: 0 0 0.35rem;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.work-name a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-underline-offset: 0.25em;
  transition: text-decoration-color 0.18s ease;
}

.work-name a:hover { text-decoration-color: var(--accent); }

.work-desc {
  margin: 0;
  max-width: 38em;
  font-size: 0.9375rem;
  color: var(--ink-soft);
}

.work-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-align: right;
  white-space: nowrap;
}

.version  { color: var(--accent); }
.platform { color: var(--ink-soft); }

/* --- 关于 ---------------------------------------------------------------- */

.prose { max-width: 38em; }

.prose p {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
}

.prose p:last-child { margin-bottom: 0; }

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

/* --- 联系 ---------------------------------------------------------------- */

.links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.links li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.25rem;
}

.link-label {
  min-width: 5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.links a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-underline-offset: 0.25em;
  transition: text-decoration-color 0.18s ease;
}

.links a:hover { text-decoration-color: var(--accent); }

/* --- 页脚 ---------------------------------------------------------------- */

.site-footer {
  margin-top: clamp(3rem, 8vw, 6rem);
  padding-block: 2.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}

.site-footer p { margin: 0; }

.site-footer a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.site-footer a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* --- 窄屏 ---------------------------------------------------------------- */

@media (max-width: 34rem) {
  .work { grid-template-columns: 1fr; }

  .work-meta {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    text-align: left;
  }
}

/* --- 降低动效偏好 -------------------------------------------------------- */

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

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .nav a::after { transition: none; }
}