/* ===========================================
   Silent Canvas Atelier — Portal Stylesheet
   =========================================== */

:root {
  --bg-deep:     #0b0a0d;
  --bg-velvet:   #131218;
  --bg-frame:    #1a1820;
  --bg-card:     #1f1c25;
  --ink:         #e8e2d4;
  --ink-dim:     #a59c8b;
  --ink-faint:   #6f6857;
  --gold:        #c8a96a;
  --gold-soft:   #8e7a4f;
  --rule:        rgba(200, 169, 106, 0.22);
  --shadow-deep: 0 30px 80px rgba(0, 0, 0, 0.65);
  --shadow-soft: 0 12px 36px rgba(0, 0, 0, 0.45);
  --serif:       "Cormorant Garamond", "Noto Serif JP", "Hiragino Mincho ProN",
                 "Yu Mincho", serif;
  --sans:        "Inter", "Noto Sans JP", "Hiragino Sans", system-ui,
                 -apple-system, sans-serif;
}

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

html, body {
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}

body {
  background:
    radial-gradient(1200px 600px at 18% -10%,
      rgba(200, 169, 106, 0.08), transparent 60%),
    radial-gradient(900px 500px at 90% 110%,
      rgba(110, 90, 60, 0.10), transparent 60%),
    var(--bg-deep);
  min-height: 100vh;
}

/* film grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    repeating-linear-gradient(0deg,
      rgba(255, 255, 255, 0.012) 0,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 3px);
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* =========== Layout =========== */

.shell {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 32px 96px;
}

@media (max-width: 720px) {
  .shell { padding: 40px 20px 64px; }
}

/* =========== Header =========== */

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 56px;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-glyph {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand-name {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.18em;
  color: var(--ink);
}

.brand-name .ja {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: 15px;
  color: var(--ink-dim);
  letter-spacing: 0.32em;
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--rule);
}

.brand-nav {
  display: flex; gap: 28px;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-nav a {
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.3s ease;
}

.brand-nav a:hover { color: var(--gold); }

@media (max-width: 720px) {
  .brand { flex-direction: column; gap: 20px; align-items: flex-start; }
  .brand-name { font-size: 18px; }
  .brand-name .ja { font-size: 13px; margin-left: 10px; padding-left: 10px; }
  .brand-nav { font-size: 11px; gap: 18px; }
}

/* =========== Hero =========== */

.hero {
  margin-bottom: 96px;
  max-width: 880px;
}

.hero-kicker {
  font-family: var(--serif);
  font-style: italic;
  color: var(--gold);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 12px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-weight: 500;
  font-size: clamp(34px, 5.8vw, 64px);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 28px;
}

.hero-title .accent {
  color: var(--gold);
  font-style: italic;
  font-family: var(--serif);
  font-weight: 400;
}

.hero-tagline-en {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 2vw, 20px);
  color: var(--ink-dim);
  letter-spacing: 0.06em;
  margin-bottom: 36px;
}

.hero-intro {
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--ink-dim);
  max-width: 640px;
}

@media (max-width: 720px) {
  .hero { margin-bottom: 64px; }
  .hero-intro { font-size: 14.5px; line-height: 1.85; }
}

/* =========== Section header =========== */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 40px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.section-head h2 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 30px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.section-head .count {
  font-family: var(--serif);
  color: var(--ink-faint);
  font-size: 14px;
  letter-spacing: 0.3em;
}

/* =========== Gallery grid =========== */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 56px 48px;
  margin-bottom: 120px;
}

@media (max-width: 720px) {
  .gallery { gap: 48px; grid-template-columns: 1fr; margin-bottom: 80px; }
}

/* =========== Painting card =========== */

.painting {
  position: relative;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.painting:hover { transform: translateY(-6px); }

.painting-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-frame);
  padding: 14px;
  border: 1px solid rgba(200, 169, 106, 0.18);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
}

.painting-frame::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(200, 169, 106, 0.10);
  pointer-events: none;
  z-index: 1;
}

.painting-image {
  position: relative;
  width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  filter: saturate(0.92) contrast(1.02) brightness(0.86);
  transition: filter 0.8s ease, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.painting:hover .painting-image {
  filter: saturate(1.05) contrast(1.06) brightness(1);
  transform: scale(1.03);
}

.painting-veil {
  position: absolute;
  inset: 14px;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(11, 10, 13, 0.0) 50%,
      rgba(11, 10, 13, 0.72) 100%);
  transition: background 0.6s ease;
}

.painting:hover .painting-veil {
  background:
    linear-gradient(180deg,
      rgba(11, 10, 13, 0.0) 60%,
      rgba(11, 10, 13, 0.55) 100%);
}

.painting-meta {
  position: absolute;
  bottom: 24px; left: 28px; right: 28px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.painting-era {
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 4px;
}

.painting-title {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: 0.04em;
  color: var(--ink);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

.painting-subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.7);
}

/* card body */

.painting-body {
  padding: 24px 4px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.painting-summary {
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-dim);
}

.painting-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}

.painting-tag {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  padding: 4px 10px;
  border: 1px solid var(--rule);
  font-family: "Noto Sans JP", sans-serif;
}

.painting-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.painting-enter {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--gold);
  display: flex; align-items: center; gap: 10px;
  transition: gap 0.4s ease;
}

.painting:hover .painting-enter { gap: 18px; }

.painting-enter::after {
  content: "→";
  font-style: normal;
  transition: transform 0.4s ease;
}

.painting-year {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-faint);
  font-size: 13px;
  letter-spacing: 0.16em;
}

/* =========== Upcoming =========== */

.upcoming {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 80px;
}

.upcoming-card {
  padding: 36px 28px;
  border: 1px dashed var(--rule);
  background: rgba(31, 28, 37, 0.4);
  display: flex; flex-direction: column; gap: 12px;
  min-height: 180px;
  justify-content: center;
}

.upcoming-kicker {
  font-family: var(--serif);
  font-style: italic;
  letter-spacing: 0.28em;
  font-size: 11px;
  color: var(--gold-soft);
  text-transform: uppercase;
}

.upcoming-title {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  color: var(--ink-dim);
  letter-spacing: 0.04em;
}

.upcoming-summary {
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-faint);
}

/* =========== Atelier Note (concept) =========== */

.atelier-note {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding: 56px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.atelier-note h3 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 28px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.atelier-note h3 .ja {
  display: block;
  font-style: normal;
  font-family: "Noto Serif JP", serif;
  font-size: 14px;
  letter-spacing: 0.32em;
  color: var(--ink-faint);
  margin-top: 8px;
}

.atelier-note p {
  font-size: 14.5px;
  line-height: 2.05;
  color: var(--ink-dim);
  margin-bottom: 12px;
}

.atelier-note p:last-child { margin-bottom: 0; }

@media (max-width: 720px) {
  .atelier-note { grid-template-columns: 1fr; gap: 24px; padding: 40px 0; }
}

/* =========== Footer =========== */

footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.12em;
}

footer .colophon { font-style: normal; font-family: var(--sans); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; }

@media (max-width: 720px) {
  footer { flex-direction: column; gap: 12px; text-align: center; }
}

/* =========== Reveal animation =========== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1.2s ease, transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}