/* =============================================
   ATELIER — Japanese Editorial Portfolio
   Playfair Display + Source Serif 4
   Cream / Ink / Vermillion
   ============================================= */

:root {
  --cream:      #faf8f4;
  --cream-dark: #f0ece3;
  --ink:        #1a1612;
  --ink-mid:    #3d3530;
  --ink-light:  #7a6e65;
  --ink-faint:  #c4b9ae;
  --vermillion: #d64933;
  --vermillion-dark: #a83525;

  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body:    'Source Serif 4', 'Georgia', serif;

  --gutter: clamp(1.5rem, 5vw, 4rem);
  --max:    1160px;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --screenshot-gap: 0.75rem;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { 
  scroll-behavior: smooth; 
  font-size: 16px;
  /* Custom scrollbar styling */
  scrollbar-width: thin;
  scrollbar-color: var(--vermillion) var(--cream);
}
/* Webkit browsers (Chrome, Safari, Edge) */
html::-webkit-scrollbar {
  width: 10px;
}
html::-webkit-scrollbar-track {
  background: var(--cream);
}
html::-webkit-scrollbar-thumb {
  background: var(--vermillion);
  border-radius: 5px;
}
html::-webkit-scrollbar-thumb:hover {
  background: var(--vermillion-dark);
}
body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* Paper texture */
.paper-texture {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
}

/* ── Vertical Japanese strip (hero-scoped, not fixed) ── */
.vertical-strip {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1.5rem 0.6rem;
  background: var(--vermillion);
  writing-mode: vertical-rl;
}
.vertical-strip span {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: white;
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  height: 64px;
  /* Frosted glass */
  background: rgba(250, 248, 244, 0.82);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(196, 185, 174, 0.35);
  transition: background 0.3s, border-color 0.3s;
}

/* Logotype — PNG image */
.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-logo-img {
  height: 32px;
  width: auto;
  transition: opacity 0.2s;
}
.nav-logo:hover .nav-logo-img { opacity: 0.72; }

/* Nav center: text links */
.nav-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-link {
  font-family: var(--font-display);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  color: var(--ink-mid);
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.nav-link-jp {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1;
}
.nav-link-en {
  font-size: 0.55rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-light);
  line-height: 1;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: var(--vermillion);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--ink);
}
.nav-link.active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}


/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem var(--gutter) 4rem;
  position: relative;
  overflow: hidden;
}

/* Large background kanji — z-index below brush reveal */
.hero-bg-kanji {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.bg-kanji {
  position: absolute;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--ink);
  opacity: 0;
  user-select: none;
}
.bg-kanji--1 {
  font-size: clamp(18rem, 35vw, 28rem);
  right: -3rem;
  top: 50%;
  transform: translateY(-58%);
  animation: kanjiDrift1 1.6s var(--ease-out) 0.4s forwards;
}
.bg-kanji--2 {
  font-size: clamp(10rem, 18vw, 16rem);
  right: 22vw;
  bottom: 4rem;
  animation: kanjiDrift2 1.8s var(--ease-out) 0.7s forwards;
}

@keyframes kanjiDrift1 {
  from { opacity: 0; transform: translateY(-52%) translateX(40px); }
  to   { opacity: 0.04; transform: translateY(-58%) translateX(0); }
}
@keyframes kanjiDrift2 {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 0.03; transform: translateY(0); }
}

/* Issue line */
.hero-issue {
  display: flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.1s forwards;
}
.issue-sep { margin: 0 0.4em; color: var(--ink-faint); }

/* Hero body grid */
.hero-body {
  display: grid;
  grid-template-columns: 2.5rem 1fr 5rem;
  gap: 2rem;
  align-items: center;
  max-width: var(--max);
  position: relative;
  z-index: 1;
}

/* Vertical Japanese text */
.hero-vtext {
  font-family: var(--font-body);
  font-size: 0.65rem;
  writing-mode: vertical-rl;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  transform: rotate(180deg);
  white-space: nowrap;
  opacity: 0;
  animation: fadeUp 1s var(--ease) 0.3s forwards;
}

.hero-center { text-align: left; position: relative; z-index: 1; isolation: isolate; }

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.12em;
  color: var(--ink-light);
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.2s forwards;
}

/* ── Hero name ── */
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 11vw, 9rem);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.6rem;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.5s forwards;
}

/* Text rise on load */
.hero-name-line {
  display: block;
  position: relative;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.55s forwards;
}
.hero-name-line--indent {
  padding-left: 1.5ch;
  animation: fadeUp 0.9s var(--ease-out) 0.75s forwards !important;
}

@keyframes brushWipe {
  0%   { transform: scaleX(0); }
  45%  { transform: scaleX(1); }
  100% { transform: scaleX(0); transform-origin: right center; }
}
/* Fix: change origin mid-animation via a two-step approach */
@keyframes brushWipe {
  0%        { transform: scaleX(0); transform-origin: left center; }
  50%       { transform: scaleX(1); transform-origin: left center; }
  50.001%   { transform: scaleX(1); transform-origin: right center; }
  100%      { transform: scaleX(0); transform-origin: right center; }
}

/* Katakana name subtitle */
.hero-kana-name {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.2vw, 1.6rem);
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.18em;
  color: var(--vermillion);
  margin-top: 0.4rem;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 0.9s forwards;
}


.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.8;
  font-weight: 300;
  color: var(--ink-mid);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 1.1s forwards;
}
.hero-desc em { font-style: italic; color: var(--vermillion); }

.hero-right { display: none; }

/* ── Explore indicator (bottom center) ── */
.hero-explore {
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-light);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease) 1.3s forwards;
  transition: color 0.2s;
  z-index: 2;
  white-space: nowrap;
}
.hero-explore:hover { color: var(--vermillion); }
.hero-explore svg { width: 18px; height: 30px; }
.scroll-dot { animation: scrollBob 2s ease-in-out 2s infinite; }

/* ── Work ── */
.work {
  padding: 0;
}

.work-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto 5rem;
  padding: 0 var(--gutter);
}
.work-header-rule { flex: 1; height: 1px; background: var(--ink-faint); }
.work-header-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.16em;
  color: var(--ink-light);
  white-space: nowrap;
}

/* ── Spreads ── */
.spread {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto 7rem;
  padding: 0 var(--gutter);
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.spread.visible { opacity: 1; transform: none; }
.spread--flip { direction: rtl; }
.spread--flip > * { direction: ltr; }

/* Alternate background colors for visual separation */
.spread:nth-child(odd) {
  background: var(--cream-dark);
  padding: 2rem var(--gutter);
  margin-bottom: 5rem;
}
.spread:nth-child(even) {
  background: var(--cream);
  padding: 2rem var(--gutter);
  margin-bottom: 5rem;
}

/* Screenshot grid layout — desktop baseline (>900px) */
.spread-screenshots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--screenshot-gap);
  width: 100%;
  max-height: 60vh;
  max-width: min(50vw, 60vh);
}
/* Single screenshot: full width, no forced square */
.spread-screenshots--single {
  grid-template-columns: 1fr;
  max-height: unset;
}
.spread-screenshot {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 4px;
}
/* WordFractal: main image spans both rows, secondary stacks beside it */
.spread-screenshot--main {
  grid-column: 1;
  grid-row: 1 / 3;
}
.spread-screenshots-secondary {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  gap: var(--screenshot-gap);
}

.spread-fig {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.spread-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

/* Katakana transliteration under title */
.spread-title-jp {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-style: italic;
  letter-spacing: 0.14em;
  color: var(--ink-light);
  margin-bottom: 0.75rem;
}

.spread-rule {
  width: 3rem;
  height: 2px;
  background: var(--vermillion);
  margin-bottom: 1.25rem;
}

.spread-body {
  font-size: 1.0625rem;
  line-height: 1.8;
  font-weight: 300;
  color: var(--ink-mid);
  margin-bottom: 1.25rem;
}
.spread-body em { font-style: italic; color: var(--ink); }

.pullquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--vermillion-dark);
  border-left: 2px solid var(--vermillion);
  padding-left: 1rem;
  margin: 1.25rem 0;
}

.spread-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}
.spread-stack li {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--ink-faint);
  padding: 0.25rem 0.6rem;
  color: var(--ink-mid);
  transition: border-color 0.2s, color 0.2s;
}
.spread:hover .spread-stack li {
  border-color: var(--ink-mid);
}

.spread-link {
  font-size: 0.8rem;
  font-style: italic;
  letter-spacing: 0.05em;
  color: var(--vermillion);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.spread-link:hover { color: var(--vermillion-dark); }
.spread-link--dim { color: var(--ink-light); border-color: var(--ink-faint); cursor: default; }

/* ── About ── */
.about {
  background: var(--ink);
  padding: 6rem var(--gutter);
  position: relative;
  overflow: hidden;
}

/* Large background kanji in about section */
.about::before {
  content: '語';
  position: absolute;
  right: -2rem;
  bottom: -4rem;
  font-family: var(--font-display);
  font-size: clamp(18rem, 28vw, 24rem);
  font-weight: 900;
  color: rgba(255,255,255,0.025);
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

.about-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3rem;
  align-items: start;
  max-width: var(--max);
  margin: 0 auto;
  position: relative; z-index: 1;
}

.about-dropcap-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.dropcap {
  font-family: var(--font-display);
  font-size: clamp(6rem, 12vw, 10rem);
  font-weight: 900;
  line-height: 0.8;
  color: var(--vermillion);
  display: block;
  user-select: none;
}


.about-heading {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.75rem;
}
.about-heading-jp {
  font-style: normal;
  letter-spacing: 0.1em;
  color: rgba(196, 185, 174, 0.5);
  font-size: 0.65rem;
}

.about-rule {
  width: 2.5rem;
  height: 1px;
  background: var(--vermillion);
  margin-bottom: 1.5rem;
}
.about-body {
  font-size: 1.125rem;
  line-height: 1.9;
  font-weight: 300;
  color: var(--cream-dark);
  margin-bottom: 1.25rem;
}

/* First paragraph plain I on mobile (when dropcap is hidden) */
.about-body:first-of-type::before {
  content: 'I ';
  display: none;
}
@media (max-width: 900px) {
  .about-body:first-of-type::before {
    display: inline;
  }
}

.about-body--italic { font-style: italic; color: var(--ink-faint); }

/* Colophon strip */
.about-colophon {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(196, 185, 174, 0.2);
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: rgba(196, 185, 174, 0.45);
}
.colophon-sep {
  margin: 0 0.75rem;
  color: var(--vermillion);
  opacity: 0.4;
}

/* ── Contact ── */
.contact {
  padding: 6rem var(--gutter);
  background: var(--cream-dark);
  position: relative;
  overflow: hidden;
}
/* Decorative contact kanji */
.contact::before {
  content: '連';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(20rem, 38vw, 32rem);
  font-weight: 900;
  color: rgba(26, 22, 18, 0.025);
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  max-width: var(--max);
  margin: 0 auto;
  position: relative; z-index: 1;
}
.contact-eyebrow {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vermillion);
  margin-bottom: 1rem;
}
.contact-heading {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 0.95;
  color: var(--ink);
  margin-bottom: 0.75rem;
}
.contact-jp {
  font-family: var(--font-display);
  font-size: 1rem;
  font-style: italic;
  letter-spacing: 0.12em;
  color: var(--ink-light);
}

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 0;
  transition: color 0.2s;
}
.contact-row:hover { color: var(--vermillion); }
.contact-row-label {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-light);
}

.contact-row-value {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--ink);
  transition: color 0.2s;
}
.contact-row:hover .contact-row-value { color: var(--vermillion); }
.contact-sep { height: 1px; background: var(--ink-faint); opacity: 0.5; }

/* ── Footer ── */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem var(--gutter);
  border-top: 1px solid var(--ink-faint);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--ink-light);
}
.footer-left {
  flex: 1;
}
.footer-mid {
  flex: 1;
  text-align: center;
}
.footer-back {
  color: var(--vermillion);
  transition: opacity 0.2s;
}
.footer-back:hover { opacity: 0.7; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}
@keyframes scrollBob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(8px); }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .spread, .spread--flip {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 2rem;
    margin-bottom: 4rem;
  }
  
  /* Screenshots: stacked above text, still 2-col side-by-side */
  .spread-screenshots {
    grid-template-columns: 1fr 1fr;
    gap: var(--screenshot-gap);
    max-height: 60vh;
    max-width: min(50vw, 60vh);
  }
  /* Single screenshot: full width, no forced square */
  .spread-screenshots--single {
    grid-template-columns: 1fr;
    max-height: unset;
  }
  /* Reset WordFractal row-spanning — no longer needed in single column */
  .spread-screenshot--main {
    grid-column: 1;
    grid-row: auto;
  }
  .spread-screenshots-secondary {
    grid-column: 2;
    grid-row: auto;
    flex-direction: column;
  }
  
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-inner { grid-template-columns: 1fr; }
  .dropcap-wrap { display: none; }
  .dropcap { display: none; }
  .dropcap-jp { display: none; }
  .about-dropcap-wrap { display: none; }

  /* Keep hero-vtext visible on mobile — just make it horizontal */
  .hero-body {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .hero-left {
    /* Show vertical text on mobile as horizontal, small, above title */
    order: -1;
    margin-bottom: 1rem;
  }
  .hero-vtext {
    writing-mode: horizontal-tb;
    transform: none;
    font-size: 0.6rem;
    letter-spacing: 0.22em;
    color: var(--ink-faint);
  }

  .vertical-strip { display: none; }
  .nav, .hero, .work-header, .spread, .about, .contact, .footer {
    padding-left: var(--gutter);
  }

  /* Nav: center links still show on mobile */
  .nav-center {
    position: static;
    transform: none;
  }
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
  }
  .nav-links { gap: 1.25rem; }
}

@media (max-width: 600px) {
  .hero-name { font-size: clamp(3rem, 16vw, 5rem); }
  .spread-title { font-size: 2rem; }
  .nav-link { font-size: 0.85rem; }
  .hero-kana-name { font-size: 1rem; }

  /* Mobile: screenshots take full width, no max-width constraint */
  .spread-screenshots {
    max-width: unset;
    max-height: 70vh;
  }
  /* Tighten screenshot gap on small screens */
  .spread-screenshots { gap: 0.5rem; }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  /* Ensure everything is visible without animation */
  .hero-name-line { transform: none !important; }
  .bg-kanji { opacity: 0.04 !important; }
}