/* bladydora.com — 个人作品展示站
 *
 * 视觉：紫色 / 重叠日蚀。暗色为主，浅色为变体。
 * 约束：零外部请求（字体走系统栈，纹理与图形全部是内联 CSS/SVG data URI）。
 */

:root {
  color-scheme: dark light;

  /* —— 暗色（主视觉）—— */
  --bg:          #0e0a18;
  --bg-raised:   #16102a;
  --text:        #ece7fa;
  --muted:       #a096c4;
  --faint:       #6f6790;
  --rule:        #271d44;
  --rule-strong: #3a2c63;

  --accent:      #a98bff;   /* 主强调：链接、序号、图标 */
  --accent-soft: #c9b6ff;   /* 悬停、点缀 */
  --accent-deep: #6d3bf5;   /* 光晕、渐变端点 */
  --magenta:     #c65cf0;   /* 渐变另一端 */

  --glow-1: rgba(109, 59, 245, .30);
  --glow-2: rgba(198, 92, 240, .18);
  --grain-opacity: .30;
  --row-hover: rgba(169, 139, 255, .055);

  --measure: 46rem;
  --gap: clamp(1.15rem, 4vw, 2rem);

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:          #f8f5ff;
    --bg-raised:   #ffffff;
    --text:        #1b1330;
    --muted:       #635a7d;
    --faint:       #8b83a5;
    --rule:        #e6dEfa;
    --rule-strong: #d3c5f2;

    --accent:      #6d28d9;
    --accent-soft: #7c3aed;
    --accent-deep: #8b5cf6;
    --magenta:     #a21caf;

    --glow-1: rgba(139, 92, 246, .17);
    --glow-2: rgba(192, 38, 211, .09);
    --grain-opacity: .16;
    --row-hover: rgba(109, 40, 217, .04);
  }
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  isolation: isolate;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  overflow-wrap: break-word;
}

/* 背景：两团重叠的光晕，呼应「重叠日蚀」这个标识 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(46rem 32rem at 18% -8%,  var(--glow-1), transparent 62%),
    radial-gradient(38rem 30rem at 88% 6%,   var(--glow-2), transparent 60%),
    radial-gradient(30rem 30rem at 60% 108%, var(--glow-1), transparent 65%);
}

/* 纹理：内联 SVG 噪声，避免大面积纯色发闷 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--gap);
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  padding-block: 1.15rem;
  backdrop-filter: blur(6px);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: .75rem 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: .02em;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

.brand svg {
  display: block;
  filter: drop-shadow(0 0 7px var(--glow-1));
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.nav a {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  font-size: .9375rem;
  padding-block: .15rem;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: -.15rem;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--magenta));
  transition: right .22s ease;
}

.nav a:hover, .nav a:focus-visible { color: var(--text); }
.nav a:hover::after, .nav a:focus-visible::after { right: 0; }

.nav a.is-current { color: var(--text); font-weight: 500; }
.nav a.is-current::after { right: 0; }

#lang-toggle {
  font: inherit;
  font-size: .75rem;
  font-family: var(--mono);
  letter-spacing: .06em;
  line-height: 1;
  padding: .45rem .65rem;
  min-width: 2.9rem;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color .2s, border-color .2s, box-shadow .2s;
}

#lang-toggle:hover, #lang-toggle:focus-visible {
  color: var(--accent-soft);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--row-hover);
}

/* ---------- main ---------- */

main { flex: 1; padding-block: clamp(2.75rem, 9vw, 5.5rem) 3.5rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.4rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}

.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--row-hover), 0 0 12px var(--accent);
}

.hero h1 {
  font-size: clamp(2.3rem, 8.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -.015em;
  line-height: 1.12;
  margin: 0 0 1.1rem;
  background: linear-gradient(102deg, var(--text) 28%, var(--accent-soft) 62%, var(--magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-bottom: .06em;   /* 防止渐变文字下缘被裁 */
}

.hero .lede {
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  color: var(--muted);
  margin: 0;
  max-width: 34rem;
}

section { margin-top: clamp(2.75rem, 8vw, 4.5rem); }

h2 {
  display: flex;
  align-items: center;
  gap: .85rem;
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 1.75rem;
}

h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--rule-strong), transparent);
}

h3 { font-size: 1.125rem; font-weight: 600; margin: 0; letter-spacing: -.005em; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

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

/* ---------- works ---------- */

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

.works li {
  counter-increment: work;
  display: grid;
  grid-template-columns: 2.9rem 1fr;
  align-items: start;
  padding: 1.15rem .75rem 1.15rem .6rem;
  margin-inline: -.6rem;
  border-radius: 10px;
  border-bottom: 1px solid var(--rule);
  transition: background-color .2s ease;
}

.works li:last-child { border-bottom: 0; }
.works li:hover { background-color: var(--row-hover); }

/* 序号：01 02 03 …，每个 <ul> 各自从 01 起 */
.works li::before {
  content: counter(work, decimal-leading-zero);
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: .75rem;
  line-height: 2.35;
  color: var(--accent);
  opacity: .55;
  transition: opacity .2s;
}

.works li:hover::before { opacity: 1; }

.work-head {
  grid-column: 2;
  display: flex;
  align-items: baseline;
  gap: .5rem .8rem;
  flex-wrap: wrap;
}

.work-head a {
  color: var(--text);
  text-decoration: none;
  background-image: linear-gradient(90deg, var(--accent), var(--magenta));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size .25s ease, color .2s;
}

.work-head a:hover, .work-head a:focus-visible {
  color: var(--accent-soft);
  background-size: 100% 1px;
}

.tech {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--faint);
}

.works p {
  grid-column: 2;
  margin: .45rem 0 0;
  color: var(--muted);
  font-size: .9375rem;
}

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: .625rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  padding: .12rem .5rem;
  line-height: 1.5;
}

/* ---------- links ---------- */

a { color: var(--accent); text-underline-offset: .22em; }
a:hover { color: var(--accent-soft); }

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

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-weight: 500;
  text-decoration: none;
}
.arrow-link::after {
  content: "→";
  transition: transform .2s ease;
}
.arrow-link:hover::after { transform: translateX(4px); }

.contact { list-style: none; margin: 0; padding: 0; }
.contact li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding-block: .45rem;
  border-bottom: 1px solid var(--rule);
}
.contact li:last-child { border-bottom: 0; }
.contact span {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--faint);
  min-width: 5rem;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 1.75rem;
  font-size: .8125rem;
  color: var(--faint);
}

.site-footer .wrap {
  display: flex;
  gap: .5rem 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover, .site-footer a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

/* ---------- 404 ---------- */

.notfound { text-align: center; padding-block: clamp(3rem, 12vw, 7rem); }
.notfound .code {
  font-family: var(--mono);
  font-size: clamp(3.5rem, 16vw, 6rem);
  font-weight: 700;
  letter-spacing: -.03em;
  margin: 0 0 .75rem;
  background: linear-gradient(102deg, var(--accent), var(--magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}