@charset "UTF-8";

:root {
  --bg: #2919DC;
  --surface: #fafaf7c7;
  --ink: #fafaf7c9;
  --ink-muted: #fafaf7cf;
  --ink-faint: #fafaf78b;
  --hairline: #E5E5E0;
  --hairline-strong: #D4D4CE;
  --accent: #FAFAF7; /*E85D2F;*/
  --dark-bg: #0E0E0E;
  --dark-surface: #1A1A1A;
  --dark-hairline: #2A2A2A;
}
::selection {
  background-color: #FAFAF7;
  color: #0E0E0E;
}

html, body { background: var(--bg); color: var(--ink); }
body {
  font-family: 'Noto Sans TC', -apple-system, sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.font-mono { font-family: 'JetBrains Mono', ui-monospace, monospace; letter-spacing: -0.01em; }

/* Display font — switchable via --display-font (Tweaks) */
:root { --display-font: 'VT323', 'DotGothic16', 'JetBrains Mono', monospace; --display-tracking: 0em; --display-weight: 400; }
.font-serif-display {
  font-family: var(--display-font);
  font-weight: var(--display-weight);
  font-style: normal !important;       /* pixel fonts have no italic — avoid fake-slant */
  letter-spacing: var(--display-tracking);
  text-transform: none;
}
/* make any inline italic inside display text render upright */
.font-serif-display i, .font-serif-display em { font-style: normal; }

/* Fine hairline dividers */
.hairline { background: var(--hairline-strong); }
.border-hairline { border-color: var(--hairline-strong); }

/* Accent */
.text-accent { color: var(--accent); }
.bg-accent { background: var(--accent); }
.border-accent { border-color: var(--accent); }
.text-bg { color: var(--bg); }
.bg-bg { background: var(--bg); }

/* Tab underline */
.tab-btn { position: relative; transition: color .2s; }
.tab-btn[data-active="true"] { color: var(--ink); }
.tab-btn[data-active="false"] { color: var(--ink-faint); }
.tab-btn::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -13px;
  height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: left;
  transition: transform .3s cubic-bezier(.2,.7,.2,1);
}
.tab-btn[data-active="true"]::after { transform: scaleX(1); }

/* Work card hover */
.work-card { transition: transform .35s cubic-bezier(.2,.7,.2,1); }
.work-card .work-arrow { transition: transform .25s ease; display: inline-block; }
.work-card:hover .work-arrow { transform: translate(3px, -3px); }
.work-card .work-title-underline {
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size .35s cubic-bezier(.2,.7,.2,1);
}
.work-card:hover .work-title-underline { background-size: 100% 1px; }
.work-card .cover-img { transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.work-card:hover .cover-img { transform: scale(1.03); }
  /* 封面圖預設灰階，hover 時還原彩色 */
  .work-card img {
    filter: grayscale(1);
    transition: filter .4s ease;
  }
  .work-card:hover img {
    filter: grayscale(0);
  }

/* Cover placeholder — for images that fail or are loading */
.cover-ph {
  background-image:
    repeating-linear-gradient(135deg, rgba(0,0,0,0.035) 0 1px, transparent 1px 9px),
    linear-gradient(#f4f4ef, #eceae3);
}
.cover-ph-dark {
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 9px),
    linear-gradient(#181818, #0e0e0e);
}

/* Marquee */
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-track { animation: marquee 40s linear infinite; }

/* Hero line-art placeholder subtle movement */
@keyframes floaty { 0%,100%{transform:translate(0,0)} 50%{transform:translate(0,-4px)} }
.floaty { animation: floaty 5s ease-in-out infinite; }

/* Live indicator pulse */
@keyframes livepulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .4; transform: scale(.75); }
}

/* Section index pills */
.nav-pill { transition: color .15s; }
.nav-pill:hover { color: var(--ink); }
.nav-pill[data-on="true"] { color: var(--accent); }

/* Personal dark mode */
body[data-personal-dark="true"] .personal-section {
  background: var(--dark-bg); color: #F5F5F0;
}
body[data-personal-dark="true"] .personal-section .personal-card {
  background: var(--dark-surface); border-color: var(--dark-hairline);
}
body[data-personal-dark="true"] .personal-section .muted { color: #8A8A85; }
body[data-personal-dark="true"] .personal-section .hairline-personal { background: var(--dark-hairline); }
body[data-personal-dark="false"] .personal-section .hairline-personal { background: var(--hairline-strong); }
body[data-personal-dark="false"] .personal-section .personal-card {
  background: #FFFFFF; border-color: var(--hairline-strong);
}

/* Scrollbar minimal */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #d7d7d0; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #bcbcb4; }

/* Tweaks panel */
.tweaks-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 80;
  background: #FFFFFF; border: 1px solid var(--hairline-strong);
  border-radius: 14px; padding: 14px; width: 240px;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  display: none;
}
.tweaks-panel[data-open="true"] { display: block; }
.tweaks-swatch { width: 22px; height: 22px; border-radius: 999px; border: 1px solid var(--hairline-strong); cursor: pointer; }
.tweaks-swatch[data-on="true"] { outline: 2px solid var(--ink); outline-offset: 2px; }
.tweaks-toggle {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 4px 8px; border: 1px solid var(--hairline-strong); border-radius: 999px;
  font-size: 10px;
}
.tweaks-toggle[data-on="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Responsive horizontal scroll for personal cards */
.hscroll { scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.hscroll > * { scroll-snap-align: start; }

/* Accent-bound helpers */
.accent-underline { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 4px; text-decoration-thickness: 2px; }
a.link-accent { color: var(--accent); }
a.link-accent:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Category chip */
.chip {
  display: inline-block; padding: 2px 8px; border: 1px solid var(--hairline-strong);
  border-radius: 999px; font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.04em; color: var(--ink-muted);
}
body[data-personal-dark="true"] .personal-section .chip {
  border-color: var(--dark-hairline); color: #A0A09A;
}

/* Numbering */
.num { font-variant-numeric: tabular-nums; }

/* ===== Side rail (desktop) ===== */
.rail-item {
  position: relative;
  display: flex; align-items: baseline; gap: 14px;
  padding: 9px 0 9px 14px;
  color: var(--ink-muted);
  transition: color .2s, padding .25s cubic-bezier(.2,.7,.2,1);
}
.rail-item .rail-num {
  font-size: 10px; letter-spacing: 0.05em;
  color: var(--ink-faint); min-width: 20px;
  transition: color .2s;
}
.rail-item .rail-label {
  letter-spacing: 0.05em;
  transition: letter-spacing .25s cubic-bezier(.2,.7,.2,1);
}
/* animated left marker line */
.rail-item::before {
  content: ""; position: absolute;
  left: 0; top: 50%; transform: translateY(-50%);
  height: 1px; width: 0;
  background: currentColor;
  transition: width .35s cubic-bezier(.2,.7,.2,1);
}
.rail-item:hover { color: var(--ink); padding-left: 18px; }
.rail-item:hover .rail-num { color: var(--ink-muted); }
.rail-item:hover::before { width: 8px; }

/* active state (driven by data-on attr set via IntersectionObserver) */
.rail-item[data-on="true"] {
  color: var(--accent);
  padding-left: 22px;
}
.rail-item[data-on="true"] .rail-num { color: var(--accent); opacity: .6; }
.rail-item[data-on="true"]::before {
  content: '▶';
  width: auto; height: auto;
  background: none;
  box-shadow: none;
  font-size: 9px;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 6px color-mix(in oklab, var(--accent) 50%, transparent);
}

/* content offset for desktop */
@media (min-width: 1024px) {
  body { padding-left: 220px; }
  main { padding-top: 0 !important; }
  /* hide hero top live widget on desktop — now lives in rail */
  #hero-live { display: none !important; }
}

/* ── Meteor shower（機率性流星）── */
#meteor-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 30;          /* 內容之上、nav(z-50) 與 CRT(9999) 之下 */
  overflow: hidden;
  opacity: .55;         /* 整體降低存在感 */
  transition: opacity .25s ease;
}
/* 抓到流星時整層亮起來 */
#meteor-layer:has(.meteor:hover) { opacity: 1; }
.meteor {
  position: absolute;
  /* ASCII 尾巴：字元由 JS 生成，頭在右端、沿 +X 方向飛 */
  font-family: 'VT323', 'JetBrains Mono', monospace;
  font-size: var(--meteor-star, 13px);
  line-height: 1;
  white-space: pre;
  letter-spacing: 2px;
  color: rgba(250,250,247,.9);
  text-shadow: 0 0 3px rgba(250,250,247,.25); /* 網格風格：字元銳利、光暈收斂 */
  /* 上下 padding 加大 hover 命中範圍；右側留給 ★ 星頭（落在遮罩內） */
  padding: 12px 1.3em 12px 6px;
  /* 尾端漸淡（連同粒子一起淡出） */
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 80%);
  mask-image: linear-gradient(90deg, transparent, #000 80%);
  /* steps() 量化移動：一格一格跳，貼齊字元網格的節奏 */
  animation: meteor-fall var(--meteor-dur, 1.2s) steps(42, end) forwards;
  pointer-events: auto;  /* 圖層本身不擋滑鼠，但流星可被抓 */
  cursor: pointer;
}
/* 抓到流星：暫停飛行（★ 自轉與粒子照常），拿掉遮罩讓訊息完整顯示 */
.meteor:hover {
  animation-play-state: paused;
  -webkit-mask-image: none;
  mask-image: none;
}
/* 抓到流星：透明白色圓形範圍 */
.meteor::before {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 150px; height: 150px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: rgba(250, 250, 247, .15);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity .2s ease;
  pointer-events: none;
}
.meteor:hover::before { opacity: 1; }
/* 好運訊息：顯示在圓形範圍下方，counter-rotate 保持文字水平 */
.meteor .meteor-msg {
  position: absolute;
  left: 50%; top: 50%;
  /* 先 counter-rotate 抵銷流星的 135°，再往螢幕下方推出圓形範圍外 */
  transform: translate(-50%, -50%) rotate(-135deg) translateY(96px);
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 11px;
  line-height: 1;
  letter-spacing: .05em;
  white-space: nowrap;
  color: #FAFAF7;
  background: rgba(14, 14, 14, .55);
  padding: 7px 14px;
  border-radius: 999px;
  opacity: 0;
  transition: opacity .2s ease;
  pointer-events: none;
}
.meteor:hover .meteor-msg { opacity: 1; }
/* 流星頭：★ 自轉 + RGB 色差抖動（電波干擾感） */
.meteor::after {
  content: '★';
  position: absolute;
  right: 0; top: 50%;
  font-size: var(--meteor-star, 13px);
  line-height: 1;
  color: rgba(250,250,247,.95);
  animation:
    meteor-spin 0.9s linear infinite,
    star-glitch 0.16s steps(2) infinite;
}
@keyframes meteor-spin {
  from { transform: translateY(-50%) rotate(0deg); }
  to   { transform: translateY(-50%) rotate(360deg); }
}
@keyframes star-glitch {
  0%, 100% {
    text-shadow:
      0 0 8px rgba(250,250,247,.8),
      1.5px 0 0 rgba(255,60,220,.6),
      -1.5px 0 0 rgba(80,255,200,.6);
  }
  50% {
    text-shadow:
      0 0 11px rgba(250,250,247,.95),
      -1.5px 0 0 rgba(255,60,220,.6),
      1.5px 0 0 rgba(80,255,200,.6);
  }
}
/* 尾巴字元：各自明滅閃爍（雜訊場感） */
.meteor .tail-ch {
  animation: tail-flicker var(--tf-dur, .5s) steps(2) var(--tf-delay, 0s) infinite;
}
@keyframes tail-flicker {
  0%, 100% { filter: brightness(1); }
  50%      { filter: brightness(var(--tf-low, .4)); }
}
/* 尾巴迸出的 ASCII 光粒子 — steps() 讓移動帶顆粒跳動感 */
.meteor .spark {
  position: absolute;
  top: 50%;
  font-size: 0.75em;
  line-height: 1;
  color: rgba(250,250,247,.95);
  text-shadow: 0 0 4px rgba(250,250,247,.8);
  opacity: 0;
  animation: spark-drift var(--spark-dur, .7s) steps(5, end) var(--spark-delay, 0s) infinite;
}
@keyframes spark-drift {
  0%   { opacity: 0; transform: translate(0, -50%); }
  15%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-12px, calc(-50% + var(--spark-y, 8px))); }
}
@keyframes meteor-fall {
  0%   { transform: rotate(135deg) translateX(0);      opacity: 0; }
  8%   { opacity: 1; }
  75%  { opacity: 1; }
  100% { transform: rotate(135deg) translateX(70vmax); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .meteor { display: none; }
}

/* ── CRT scanlines + vignette ── */
#crt-screen {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.5s ease;
}
body.crt-on #crt-screen { opacity: 1; }

/* scanlines */
#crt-screen::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px, transparent 2px,
    rgba(0,0,0,0.1) 2px, rgba(0,0,0,0.1) 3px
  );
}

/* vignette + 磷光綠調 */
#crt-screen::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 38%, rgba(7, 2, 11, 0.2) 100%),
    linear-gradient(180deg, rgba(0,255,60,0.025) 0%, rgba(0,255,60,0.01) 100%);
}

/* 移動掃描線 */
#crt-scanroll {
  position: absolute;
  inset-inline: 0;
  height: 120px;
  background: linear-gradient(transparent, rgba(0,255,60,0.03), transparent);
  animation: scanroll 7s linear infinite;
  opacity: 0;
}
body.crt-on #crt-scanroll { opacity: 1; }

@keyframes scanroll {
  from { transform: translateY(-120px); }
  to   { transform: translateY(100vh); }
}

/* 偶發閃爍 */
@keyframes crt-flicker {
  0%,91%,100% { opacity: 1; }
  92%          { opacity: 0.84; }
  95%          { opacity: 0.92; }
}
body.crt-on { animation: crt-flicker 5s ease-in-out infinite; }

/* ── Fisheye (barrel distortion) ── */
body.fisheye-on {
  /* perspective 製造彎曲感 */
  perspective: 900px;
}
body.fisheye-on main {
  transform: perspective(1100px) scale(1.012);
  border-radius: 12px;
  overflow: hidden;
  /* CSS-only barrel — 邊緣壓暗 */
  box-shadow:
    inset 0 0 80px rgba(0,0,0,0.45),
    inset 0 0 200px rgba(0,0,0,0.25);
}
/* 螢光文字發光（開啟 CRT 時） */
body.crt-on {
  --glow: 0 0 8px rgba(0,255,80,0.12);
  text-shadow: var(--glow);
}
body.crt-on .text-accent,
body.crt-on .font-serif-display.text-accent {
  text-shadow: 0 0 14px color-mix(in oklab, var(--accent) 80%, transparent);
}