/* === PROJECTS === */
.proj-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.proj { 
  position: relative; padding: 32px; border-radius: 24px;
  background: var(--paper); border: 1px solid var(--line);
  overflow: hidden; transition: transform 0.4s;
  cursor: pointer;
}
.proj:hover { transform: translateY(-6px); }
.proj.large { grid-column: span 4; min-height: 380px; }
.proj.small { grid-column: span 2; min-height: 380px; }
.proj.wide { grid-column: span 3; min-height: 320px; }
@media (max-width: 900px) {
  .proj-grid { grid-template-columns: 1fr; }
  .proj.large, .proj.small, .proj.wide { grid-column: span 1; min-height: 320px; }
}

.proj-vis { 
  position: absolute; inset: 0; opacity: 0.7; pointer-events: none;
  transition: opacity 0.4s, transform 0.6s;
}
.proj:hover .proj-vis { opacity: 1; transform: scale(1.05); }

.proj-content { position: relative; z-index: 1; display: flex; flex-direction: column; height: 100%; min-height: 320px; }
.proj-tag { 
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px; border: 1px solid currentColor;
  align-self: flex-start;
  margin-bottom: auto;
}
.proj h3 { font-family: 'Instrument Serif', serif; font-size: clamp(28px, 3vw, 44px); line-height: 1.05; letter-spacing: -0.01em; margin-top: 18px; }
.proj p { color: var(--fg-muted); font-size: 14.5px; line-height: 1.55; margin-top: 10px; max-width: 380px; }
.proj-meta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 20px; font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.proj-meta span::before { content: '›'; margin-right: 8px; color: var(--red); }

/* project visuals */
.vis-stripes-r {
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, color-mix(in oklab, var(--red) 35%, transparent) 14px 16px),
    linear-gradient(135deg, color-mix(in oklab, var(--red) 14%, var(--bg)), color-mix(in oklab, var(--gold) 8%, var(--bg)));
}
.vis-dots {
  background:
    radial-gradient(circle, color-mix(in oklab, var(--indigo) 50%, transparent) 1.5px, transparent 2px) 0 0 / 14px 14px,
    linear-gradient(180deg, color-mix(in oklab, var(--indigo) 10%, var(--bg)), var(--bg));
}
.vis-grid {
  background:
    linear-gradient(color-mix(in oklab, var(--gold) 30%, transparent) 1px, transparent 1px) 0 0 / 100% 22px,
    linear-gradient(90deg, color-mix(in oklab, var(--gold) 30%, transparent) 1px, transparent 1px) 0 0 / 22px 100%,
    linear-gradient(135deg, color-mix(in oklab, var(--gold) 12%, var(--bg)), var(--bg));
}
.vis-wave {
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 60% 30% at 10% 30%, color-mix(in oklab, var(--red) 25%, transparent), transparent 60%),
    radial-gradient(ellipse 50% 30% at 90% 80%, color-mix(in oklab, var(--indigo) 25%, transparent), transparent 60%);
}

.proj.t-r { color: var(--red); }
.proj.t-i { color: var(--indigo); }
.proj.t-g { color: var(--gold); }
.proj h3, .proj p, .proj-meta { color: var(--fg); }
.proj-meta { color: var(--fg-muted); }

/* === LANGUAGES === */
.lang-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .lang-grid { grid-template-columns: 1fr; } }
.lang-card {
  padding: 36px 32px; border-radius: 24px; background: var(--paper);
  border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 14px;
  transition: all 0.3s;
}
.lang-card:hover { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.lang-card .flag { font-family: 'Shippori Mincho B1', serif; font-size: 48px; line-height: 1; }
.lang-card.f1 .flag { color: var(--red); }
.lang-card.f2 .flag { color: var(--indigo); }
.lang-card.f3 .flag { color: var(--gold); }
.lang-card:hover .flag { color: var(--bg); }
.lang-card h3 { font-family: 'Instrument Serif', serif; font-size: 30px; }
.lang-card .level { font-family: 'JetBrains Mono', monospace; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; }
.lang-card .bar { height: 4px; border-radius: 999px; background: var(--bg-alt); position: relative; overflow: hidden; }
.lang-card .bar::after { content: ''; position: absolute; inset: 0; background: currentColor; transform-origin: left; }
.lang-card.p100 .bar::after { transform: scaleX(1); }
.lang-card.p90 .bar::after { transform: scaleX(0.9); }
.lang-card.p85 .bar::after { transform: scaleX(0.85); }
.lang-card .desc { font-size: 13.5px; opacity: 0.7; }

/* === BLOG === */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .blog-grid { grid-template-columns: 1fr; } }
.post {
  display: block; padding: 28px 28px 32px;
  border: 1px solid var(--line); border-radius: 20px;
  background: var(--paper);
  transition: all 0.3s; position: relative; overflow: hidden;
}
.post::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--red); transform: scaleY(0); transform-origin: top; transition: transform 0.3s;
}
.post:hover { transform: translateY(-4px); }
.post:hover::before { transform: scaleY(1); }
.post .date { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--fg-muted); letter-spacing: 0.1em; text-transform: uppercase; }
.post h3 { font-family: 'Instrument Serif', serif; font-size: 24px; line-height: 1.25; margin: 12px 0 12px; }
.post p { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }
.post .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 13px; font-weight: 600; color: var(--red); }
.post .more .arrow { transition: transform 0.2s; }
.post:hover .more .arrow { transform: translateX(4px); }

/* === CONTACT === */
.contact {
  background:
    radial-gradient(circle at 30% 50%, color-mix(in oklab, var(--red) 12%, transparent), transparent 50%),
    radial-gradient(circle at 80% 30%, color-mix(in oklab, var(--gold) 10%, transparent), transparent 50%),
    var(--bg-alt);
  border-radius: 32px; margin: 0 32px;
  padding: 100px 60px;
  position: relative; overflow: hidden;
}
@media (max-width: 720px) { .contact { margin: 0 16px; padding: 60px 28px; } }
.contact-inner { max-width: 900px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
.contact .jp-bg { 
  position: absolute; right: -40px; bottom: -60px; 
  font-family: 'Shippori Mincho B1', serif;
  font-size: 240px; line-height: 0.85; color: var(--fg);
  opacity: 0.04; pointer-events: none; letter-spacing: -0.02em;
}
.contact h2 { font-family: 'Instrument Serif', serif; font-size: clamp(48px, 7vw, 96px); line-height: 1; letter-spacing: -0.02em; }
.contact h2 em { color: var(--red); font-style: italic; }
.contact p { font-size: 19px; color: var(--fg-muted); margin: 20px 0 36px; max-width: 580px; margin-left: auto; margin-right: auto; }
.contact-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.contact-mail {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: 'Instrument Serif', serif; font-size: clamp(28px, 4vw, 44px);
  padding: 12px 0; border-bottom: 2px solid var(--fg); transition: gap 0.3s;
}
.contact-mail:hover { gap: 24px; }

/* === FOOTER === */
footer { padding: 60px 0 40px; border-top: 1px solid var(--line); margin-top: 80px; }
.foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.foot .copy { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--fg-muted); }
.foot .colophon { font-size: 12px; color: var(--fg-muted); }
.foot .colophon span { color: var(--red); }

/* utility: blob for hero bg */
.blob {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35;
  pointer-events: none; z-index: 0;
}