:root{
  --bg:#fbfbfe;
  --bg2:#f6f5fb;
  --ink:#14121a;
  --muted:#6a6677;

  --card:#ffffffcc;
  --card2:#ffffffee;

  --stroke:#e7e3f0;
  --shadow: 0 14px 34px rgba(20,18,26,.10);
  --shadow2: 0 10px 24px rgba(20,18,26,.08);

  --radius: 18px;

  --accent:#c46a8b;
  --accent3:#f8dde6;
  --accent4:#f4e8f0;

  --edge: 0 0 0 1px color-mix(in oklab, var(--stroke), transparent 35%);
  --edge2: 0 0 0 1px color-mix(in oklab, var(--accent3), transparent 60%);
}

html[data-theme="dark"]{
  --bg:#0f0f16;
  --bg2:#141426;
  --ink:#f1f0f6;
  --muted:#b9b6c8;

  --card:#1b1b29cc;
  --card2:#1b1b29ee;

  --stroke:#2a2a3f;
  --shadow: 0 14px 34px rgba(0,0,0,.40);
  --shadow2: 0 10px 24px rgba(0,0,0,.30);

  --accent:#d97aa0;
  --accent3:#3a2530;
  --accent4:#2a1f28;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 20% 15%, color-mix(in oklab, var(--accent3), transparent 35%), transparent 55%),
    radial-gradient(1000px 600px at 85% 10%, color-mix(in oklab, var(--accent4), transparent 40%), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  min-height:100vh;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }
img{ max-width:100%; display:block; }

.muted{ color: var(--muted); }
.small{ font-size: 12px; }

.wrap{
  width: min(1080px, calc(100% - 44px));
  margin: 0 auto;
  padding: 92px 0 40px;
}

.nav{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 90;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--card2), transparent 35%);
  border-bottom: 1px solid var(--stroke);
}
.nav-inner{
  width: min(1080px, calc(100% - 44px));
  margin: 0 auto;
  height: 70px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  padding: 10px 0;
}
.logo{
  width: 14px; height: 14px;
  border-radius: 999px;
  background: radial-gradient(circle at 35% 35%, #fff, transparent 60%), color-mix(in oklab, var(--accent), #fff 22%);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--stroke), transparent 25%);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand-name{ font-weight: 850; letter-spacing:.02em; }
.brand-sub{ font-size: 12px; }

.nav-links{
  display:flex;
  gap: 18px;
  align-items:center;
}
.nav-links a{
  font-size: 13px;
  color: var(--muted);
  padding: 8px 8px;
  border-radius: 10px;
}
.nav-links a:hover{
  color: var(--ink);
  background: color-mix(in oklab, var(--card2), transparent 40%);
  text-decoration: none;
}
.nav-actions{ display:flex; gap: 10px; align-items:center; }

.btn{
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2), transparent 38%);
  color: var(--ink);
  padding: 10px 12px;
  border-radius: 999px;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  box-shadow: var(--edge);
  transition: transform .12s ease, opacity .12s ease, background .12s ease;
}
.btn:hover{ transform: translateY(-1px); opacity: .95; }
.btn:active{ transform: translateY(0px); opacity: 1; }
.btn.primary{
  background:
    radial-gradient(420px 120px at 20% 20%, color-mix(in oklab, var(--accent3), transparent 35%), transparent 60%),
    color-mix(in oklab, var(--card2), transparent 32%);
  border-color: color-mix(in oklab, var(--accent), var(--stroke) 65%);
}
.btn.ghost{
  background: color-mix(in oklab, var(--card2), transparent 46%);
}
.btn .dot{
  width: 10px; height:10px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--accent), #fff 25%);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--stroke), transparent 20%);
}

.hero{
  display:grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 22px;
  align-items: start;
  padding-top: 12px;
}
.hero h1{
  margin: 0 0 10px;
  font-size: 38px;
  letter-spacing: -.02em;
}
.lead{
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.62;
  font-size: 15px;
}
.chips{ display:flex; flex-wrap:wrap; gap: 10px; margin: 12px 0 16px; }
.chip{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2), transparent 44%);
  box-shadow: var(--edge);
  color: var(--muted);
}
.hero-actions{ display:flex; gap: 12px; flex-wrap:wrap; }

.card{
  border: 1px solid var(--stroke);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow), var(--edge), var(--edge2);
  padding: 16px 16px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.avatar-card{ display:flex; flex-direction:column; gap: 10px; align-items:center; }
.avatar{
  width: 118px; height:118px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow2), var(--edge);
  object-fit: cover;
  background: color-mix(in oklab, var(--card2), transparent 30%);
}
.mini-grid{
  margin-top: 14px;
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.mini-k{ font-size: 12px; color: var(--muted); }
.mini-v{ font-size: 13px; }

.section{
  margin-top: 26px;
  scroll-margin-top: 84px;
}
.section-title{ margin-bottom: 14px; }
.section-title h2{ margin: 0 0 6px; font-size: 22px; }
.section-title p{ margin:0; }

.grid-2{ display:grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3{ display:grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.list{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.58;
}

.subdomain-list{ display:flex; flex-direction:column; gap: 10px; margin-top: 8px; }
.subdomain{
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2), transparent 46%);
  box-shadow: var(--edge);
}
.subdomain:hover{ text-decoration:none; background: color-mix(in oklab, var(--card2), transparent 36%); }
.tag{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--accent), var(--stroke) 70%);
  background: color-mix(in oklab, var(--accent3), transparent 55%);
  color: color-mix(in oklab, var(--ink), var(--accent) 25%);
}

.form{ display:flex; flex-direction:column; gap: 12px; }
.field{ display:flex; flex-direction:column; gap: 6px; }
.label{ font-size: 12px; color: var(--muted); }
input, textarea{
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2), transparent 30%);
  color: var(--ink);
  padding: 10px 12px;
  outline: none;
  box-shadow: var(--edge);
}
textarea{ resize: vertical; }

.gblist{ display:flex; flex-direction:column; gap: 12px; margin-top: 10px; }
.gbitem{
  border: 1px solid var(--stroke);
  background: color-mix(in oklab, var(--card2), transparent 46%);
  border-radius: 14px;
  padding: 12px 12px;
  box-shadow: var(--edge);
}
.gbitem .meta{
  display:flex;
  justify-content:space-between;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--muted);
}
.gbitem .text{ margin:0; color: var(--ink); line-height: 1.58; }

.footer{ margin-top: 26px; padding-top: 14px; border-top: 1px solid var(--stroke); }

.fab{
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
}

/* =========================================================
   Sakura falling (very subtle, very slow, few particles)
   ========================================================= */
#sakura-layer{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}
.sakura{
  position: absolute;
  top: -12vh;
  left: var(--x, 50vw);
  width: var(--size, 10px);
  height: var(--size, 10px);
  border-radius: 999px;
  opacity: var(--op, 0.16);

  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,0) 55%),
    radial-gradient(circle at 70% 70%, rgba(255,210,226,.75), rgba(255,210,226,0) 60%);
  filter: blur(.15px);

  animation:
    sakura-fall var(--dur, 58s) linear var(--delay, 0s) infinite,
    sakura-sway var(--swayDur, 14s) ease-in-out var(--delay, 0s) infinite;
}
@keyframes sakura-fall{
  to{ transform: translateY(124vh) rotate(260deg); opacity: 0; }
}
@keyframes sakura-sway{
  0%{ margin-left: 0px; }
  50%{ margin-left: var(--sway, 24px); }
  100%{ margin-left: 0px; }
}
html[data-theme="dark"] .sakura{ opacity: calc(var(--op, 0.16) * 0.8); }

/* =========================================================
   Scroll progress: thread + windchime on the right
   ========================================================= */
#scroll-thread{
  position: fixed;
  top: 84px;
  bottom: 22px;
  right: 18px;
  width: 34px;
  pointer-events: none;
  z-index: 85;
}
#scroll-thread .thread-line{
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: color-mix(in oklab, var(--stroke), transparent 10%);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--card2), transparent 55%);
  opacity: 0.65;
}
#windchime{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 26px;
  object-fit: contain;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,.22));
  opacity: 0.9;
}

/* =========================================================
   Sakana (keep your current left-bottom placement)
   ========================================================= */
#sakana-host{
  position: fixed;
  left: 14px;
  bottom: 14px;
  width: 72px;
  height: 72px;
  z-index: 75;
  pointer-events: auto;
  user-select: none;
  -webkit-user-select: none;
}
#sakana-switch{
  position: fixed;
  left: 14px;
  bottom: 58px; /* keep the latest tuned value */
  z-index: 76;

  border: 1px solid color-mix(in oklab, var(--accent), var(--stroke) 70%);
  border-radius: 999px;
  padding: 10px 14px;
  min-width: 132px;

  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;

  cursor:pointer;
  color: var(--ink);
  font-size: 13px;
  letter-spacing: .02em;

  background:
    radial-gradient(420px 120px at 20% 20%, color-mix(in oklab, var(--accent3), transparent 35%), transparent 60%),
    color-mix(in oklab, var(--card2), transparent 46%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  box-shadow:
    0 18px 44px rgba(0,0,0,.14),
    var(--edge),
    var(--edge2);

  opacity: .82;
  transition: transform .12s ease, opacity .12s ease;
}
#sakana-switch:hover{ transform: translateY(-1px) scale(1.06); opacity: .95; }
#sakana-switch:active{ transform: translateY(0px) scale(1.03); }
#sakana-switch .bubble{
  width: 14px; height: 14px; border-radius: 999px;
  background: radial-gradient(circle at 35% 35%, #fff, transparent 60%), color-mix(in oklab, var(--accent), #fff 30%);
  border: 1px solid color-mix(in oklab, var(--stroke), transparent 25%);
}
#sakana-switch strong{ font-weight: 850; }

@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }

  .nav-links{
    overflow-x: auto;
    max-width: 52vw;
    gap: 10px;
    scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar{ display:none; }

  /* mobile: hide right thread to keep clean */
  #scroll-thread{ display:none; }

  #sakana-host{ left: 12px; bottom: 12px; width: 64px; height: 64px; }
  #sakana-switch{ left: 12px; bottom: 50px; min-width: 126px; }
}

/* ===== Scroll thread: NOT a rail, a growing thread ===== */
#scroll-thread .thread-line{
  top: 0 !important;
  bottom: auto !important;

  height: 0px;              /* will be set by JS */
  width: 1px !important;    /* more like thread */
  opacity: 0.55 !important;

  background: color-mix(in oklab, var(--stroke), transparent 22%) !important;
  box-shadow: none !important;
}

/* tiny knot point above the windchime */
#windchime{
  opacity: 0.92 !important;
}

/* ===== Windchime: bigger + thread thicker + swing pivot ===== */
#scroll-thread .thread-line{
  width: 2px !important; /* thicker than 1px so it's visible */
  opacity: 0.62 !important;
}

#windchime{
  width: 34px !important;
  height: 34px !important;
  transform-origin: 50% -6px; /* pivot slightly above image */
  will-change: transform;
}


/* windchime slight right offset to align with thread */
#windchime{
  transform: translateX(calc(-50% + 2px)) rotate(0deg) !important;
}


/* windchime align tweak +2px more to the right */
#windchime{
  transform: translateX(calc(-50% + 4px)) rotate(0deg) !important;
}


/* ===== Guestbook fixed-height scroll panel ===== */
#gbList{
  max-height: 320px;
  overflow-y: auto;
  padding-right: 6px;
}

/* subtle scrollbar */
#gbList::-webkit-scrollbar{
  width: 6px;
}
#gbList::-webkit-scrollbar-track{
  background: transparent;
}
#gbList::-webkit-scrollbar-thumb{
  background: color-mix(in oklab, var(--stroke), transparent 30%);
  border-radius: 999px;
}
#gbList::-webkit-scrollbar-thumb:hover{
  background: color-mix(in oklab, var(--accent), var(--stroke) 60%);
}