/* ============ SAIKIKO — DULCEDO-inspired personal site ============ */
:root {
  --bg: #ededea;
  --ink: #111111;
  --ink-soft: #444;
  --line: #111;
  --serif: "Playfair Display", "Noto Serif SC", serif;
  --sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --black: "Archivo Black", "Inter", "Noto Sans SC", "PingFang SC", sans-serif;
  --pad: clamp(1.25rem, 4vw, 4rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------------- Nav ---------------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1.1rem var(--pad);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease;
}
.nav.scrolled {
  background: rgba(237, 237, 234, .88);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(17,17,17,.12);
}
.nav-links { display: flex; gap: 1.8rem; }
.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-brand {
  font-family: var(--serif);
  font-size: 1.7rem;
  letter-spacing: .28em;
  color: var(--ink);
  text-decoration: none;
  justify-self: center;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-self: end;
}
.nav-tag { font-weight: 600; font-size: .9rem; letter-spacing: .05em; }
.nav-search {
  background: none; border: none; cursor: pointer;
  color: var(--ink); display: grid; place-items: center;
  transition: transform .3s ease;
}
.nav-search:hover { transform: scale(1.15); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(72px + 4vh) var(--pad) 8rem;
}

.hero-meta {
  display: flex;
  justify-content: flex-end;
  gap: clamp(1rem, 4vw, 4rem);
  padding-right: clamp(0rem, 3vw, 3rem);
  margin-bottom: 2rem;
}
.hero-meta-label {
  font-weight: 800;
  font-size: .85rem;
  letter-spacing: .04em;
  align-self: flex-start;
  padding-top: .3rem;
}
.hero-meta-text { max-width: 300px; text-align: right; }
.meta-cn { font-weight: 700; font-size: .95rem; line-height: 1.7; margin-bottom: .5rem; }
.meta-en {
  font-weight: 800;
  font-size: .82rem;
  line-height: 1.45;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.hero-title {
  position: relative;
  z-index: 3;
  font-family: var(--black);
  font-weight: 900;
  font-size: clamp(3.2rem, 11.5vw, 10.5rem);
  line-height: .92;
  letter-spacing: -.035em;
  text-transform: uppercase;
  pointer-events: none;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1s cubic-bezier(.16,1,.3,1);
}
.hero-title.in .line > span { transform: translateY(0); }
.hero-title .line:nth-child(2) > span { transition-delay: .12s; }
.hero-title .line:nth-child(3) > span { transition-delay: .24s; }
.hero-title .line.accent > span {
  background: var(--ink);
  color: var(--bg);
  padding: 0 .18em .04em;
}
.hero-title .arrow {
  font-family: var(--sans);
  font-weight: 400;
  font-size: .45em;
  vertical-align: .32em;
  margin-left: .12em;
}

.hero-collage {
  position: relative;
  z-index: 1;
  height: clamp(240px, 34vw, 460px);
  margin-top: clamp(-6rem, -6vw, -3rem);
}
.collage-img {
  position: absolute;
  overflow: hidden;
  will-change: transform;
  filter: saturate(.92);
  box-shadow: 0 18px 40px rgba(17,17,17,.18);
}
.collage-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s cubic-bezier(.16,1,.3,1);
}
.collage-img:hover img { transform: scale(1.06); }
.collage-img:nth-child(1) { left: 4%;  top: 18%; width: clamp(140px, 17vw, 260px); aspect-ratio: 4/5; }
.collage-img:nth-child(2) { left: 60%; top: -45%; width: clamp(190px, 26vw, 400px); aspect-ratio: 4/3; z-index: -1; }
.collage-img:nth-child(3) { right: 25%; top: 60%; width: clamp(130px, 15vw, 230px); aspect-ratio: 3/4; }

.hero-intro {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  max-width: 720px;
  margin-top: 3.5rem;
}
.hero-avatar {
  width: clamp(72px, 8vw, 110px);
  height: clamp(72px, 8vw, 110px);
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--ink);
  flex-shrink: 0;
}
.hero-bio {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.9;
  font-weight: 500;
}

.hero-status {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2.2rem;
}
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: .5rem 1.1rem;
  font-size: .9rem;
  font-weight: 600;
  background: transparent;
  transition: background .3s ease, color .3s ease, transform .3s ease;
}
.status-chip:hover {
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-3px);
}
.status-chip .chip-label { opacity: .55; font-weight: 500; }

/* ---------------- Marquee ---------------- */
.marquee {
  background: var(--ink);
  color: var(--bg);
  overflow: hidden;
  padding: 1.1rem 0;
  transform: rotate(-1.2deg) scale(1.02);
  margin: 2rem 0;
}
.marquee-track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: marquee 26s linear infinite;
}
.marquee-track span {
  font-family: var(--black);
  font-size: clamp(1.3rem, 2.6vw, 2.2rem);
  letter-spacing: .02em;
  white-space: nowrap;
  text-transform: uppercase;
}
.marquee-track .dot { font-family: var(--serif); font-style: italic; }
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------------- Section heads ---------------- */
.section-head { padding: 6rem var(--pad) 1rem; }
.section-kicker {
  display: inline-block;
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .35em;
  border: 1.5px solid var(--ink);
  padding: .35rem .9rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.section-title {
  font-family: var(--black);
  font-size: clamp(2.6rem, 8vw, 7rem);
  line-height: .95;
  letter-spacing: -.03em;
  text-transform: uppercase;
}
.section-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}
.section-title .invert {
  background: var(--ink);
  color: var(--bg);
  padding: 0 .15em .04em;
}
.section-title .line { display: block; overflow: hidden; }
.section-title .line > * ,
.section-title .line { will-change: transform; }

/* stagger reveal (generic) */
.reveal { opacity: 0; transform: translateY(48px); transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.stagger-lines .line { display: block; overflow: hidden; }
.stagger-lines .line > span, .stagger-lines .line { transition-delay: calc(var(--i, 0) * .12s); }

/* ---------------- Favorites ---------------- */
.fav-cat {
  padding: 5rem 0 4rem;
  position: relative;
}
.fav-cat:nth-child(even) { background: #e4e4e0; }
.fav-cat-head {
  display: flex;
  align-items: flex-end;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: 0 var(--pad);
  margin-bottom: 2.5rem;
}
.fav-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.6rem, 3.4vw, 3rem);
  line-height: 1;
  padding-bottom: .4em;
}
.fav-titles { flex: 1; }
.fav-cat-name {
  font-family: var(--black);
  font-size: clamp(2.2rem, 6.5vw, 5.5rem);
  line-height: .95;
  letter-spacing: -.03em;
  text-transform: uppercase;
}
.fav-cat-name .cn {
  font-family: var(--sans);
  font-weight: 900;
  font-size: .42em;
  vertical-align: .42em;
  margin-left: .4em;
  letter-spacing: .2em;
}
.fav-cat:nth-child(even) .fav-cat-head { flex-direction: row-reverse; text-align: right; }
.fav-note {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--ink-soft);
  padding-bottom: .5em;
  white-space: nowrap;
}

.fav-cards {
  display: flex;
  gap: clamp(1rem, 2vw, 1.8rem);
  overflow-x: auto;
  padding: 1rem var(--pad) 2rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.fav-cards::-webkit-scrollbar { display: none; }
.fav-card {
  flex: 0 0 clamp(220px, 24vw, 320px);
  scroll-snap-align: start;
  background: var(--bg);
  border: 1.5px solid var(--ink);
  transition: transform .35s cubic-bezier(.16,1,.3,1), box-shadow .35s ease;
}
.fav-cat:nth-child(even) .fav-card { background: #f4f4f1; }
.fav-card:hover {
  transform: translateY(-8px);
  box-shadow: 8px 8px 0 var(--ink);
}
.fav-card-cover { aspect-ratio: 4/5; overflow: hidden; border-bottom: 1.5px solid var(--ink); }
.fav-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.16,1,.3,1); }
.fav-card:hover .fav-card-cover img { transform: scale(1.07); }
.fav-card-body { padding: 1rem 1.1rem 1.2rem; }
.fav-card-title { font-weight: 800; font-size: 1.02rem; line-height: 1.4; margin-bottom: .45rem; }
.fav-card-rating { font-size: .85rem; letter-spacing: .15em; margin-bottom: .55rem; color: var(--ink); }
.fav-card-rating .off { opacity: .22; }
.fav-card-comment { font-size: .88rem; line-height: 1.7; color: var(--ink-soft); }

/* ---------------- Moments ---------------- */
.moments { padding-bottom: 4rem; }
.moments-list {
  padding: 2rem var(--pad) 0;
  display: flex;
  flex-direction: column;
}
.moment {
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding: 2.6rem 0;
  border-top: 1.5px solid var(--ink);
}
.moment:last-child { border-bottom: 1.5px solid var(--ink); }
.moment-date {
  font-family: var(--black);
  font-size: clamp(1.2rem, 2.2vw, 1.9rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  text-transform: uppercase;
}
.moment-date .day { font-size: 2em; display: block; }
.moment-date .mood { font-family: var(--sans); font-size: .9em; display: block; margin-top: .4rem; }
.moment-text {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 2;
  font-weight: 500;
  max-width: 46em;
}
.moment-images {
  display: flex;
  gap: .9rem;
  margin-top: 1.2rem;
  flex-wrap: wrap;
}
.moment-images img {
  width: clamp(120px, 16vw, 220px);
  aspect-ratio: 1;
  object-fit: cover;
  border: 1.5px solid var(--ink);
  transition: transform .35s ease;
}
.moment-images img:hover { transform: scale(1.04) rotate(-1deg); }

/* ---------------- Footer ---------------- */
.footer {
  padding: 6rem var(--pad) 3rem;
  text-align: center;
  border-top: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
}
.footer-name {
  font-family: var(--black);
  font-size: clamp(3rem, 14vw, 13rem);
  line-height: .9;
  letter-spacing: -.02em;
  text-transform: uppercase;
  opacity: .98;
}
.footer-social {
  display: flex;
  justify-content: center;
  gap: 2.2rem;
  margin: 2.5rem 0 1.6rem;
}
.footer-social a {
  color: var(--bg);
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .08em;
  border-bottom: 1.5px solid transparent;
  transition: border-color .3s ease;
}
.footer-social a:hover { border-bottom-color: var(--bg); }
.footer-note { font-size: .85rem; opacity: .55; letter-spacing: .05em; }

/* ---------------- Parallax ---------------- */
[data-speed] { will-change: transform; }

/* ---------------- Responsive ---------------- */
@media (max-width: 820px) {
  .nav { grid-template-columns: auto 1fr auto; padding: .9rem 1.2rem; }
  .nav-links { gap: 1.1rem; }
  .nav-links a { font-size: .85rem; }
  .nav-brand { font-size: 1.2rem; justify-self: start; margin-left: 1rem; }
  .nav-tag { display: none; }
  .hero-meta { flex-direction: column; align-items: flex-start; gap: .8rem; }
  .hero-meta-text { text-align: left; }
  .hero-collage { height: 60vw; margin-top: -1rem; }
  .moment { grid-template-columns: 1fr; gap: 1rem; }
  .fav-cat-head { flex-wrap: wrap; }
  .fav-note { width: 100%; padding-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-title .line > span { transform: none; }
}