/* ============================================================ Chiritsumo — Modern Redesign · Shared stylesheet ------------------------------------------------------------ Neutral, editorial, type-led. CSS-generated abstract imagery. Three color palettes toggleable via [data-palette] on . ============================================================ */ /* Palettes ---------------------------------------------------*/ :root, :root[data-palette="warm"] { --bg: oklch(0.985 0.006 80); --bg-2: oklch(0.955 0.008 80); --ink: oklch(0.18 0.01 70); --ink-2: oklch(0.38 0.008 70); --ink-3: oklch(0.58 0.006 70); --rule: oklch(0.88 0.005 70); --rule-2: oklch(0.93 0.004 70); --accent: oklch(0.55 0.13 48); /* terracotta */ --accent-ink: oklch(0.98 0.006 80); --grad-a: oklch(0.88 0.08 60); --grad-b: oklch(0.78 0.10 35); --grad-c: oklch(0.92 0.03 80); } :root[data-palette="cool"] { --bg: oklch(0.985 0.003 240); --bg-2: oklch(0.955 0.005 240); --ink: oklch(0.18 0.01 250); --ink-2: oklch(0.38 0.008 250); --ink-3: oklch(0.58 0.006 250); --rule: oklch(0.88 0.005 240); --rule-2: oklch(0.93 0.004 240); --accent: oklch(0.52 0.12 240); /* navy */ --accent-ink: oklch(0.98 0.003 240); --grad-a: oklch(0.85 0.06 220); --grad-b: oklch(0.75 0.09 260); --grad-c: oklch(0.92 0.02 240); } :root[data-palette="mono"] { --bg: oklch(0.98 0.002 0); --bg-2: oklch(0.95 0.002 0); --ink: oklch(0.15 0.002 0); --ink-2: oklch(0.38 0.002 0); --ink-3: oklch(0.60 0.002 0); --rule: oklch(0.88 0.002 0); --rule-2: oklch(0.93 0.002 0); --accent: oklch(0.18 0.002 0); --accent-ink: oklch(0.98 0.002 0); --grad-a: oklch(0.90 0.002 0); --grad-b: oklch(0.75 0.002 0); --grad-c: oklch(0.95 0.002 0); } /* Reset + base ----------------------------------------------*/ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { scroll-behavior: smooth; } html, body { background: var(--bg); color: var(--ink); } body { font-family: "Noto Sans JP", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", sans-serif; font-size: 16px; line-height: 1.7; font-feature-settings: "palt" 1; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; } img, svg { display: block; max-width: 100%; } a { color: inherit; text-decoration: none; } button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; } /* Typography ------------------------------------------------*/ .serif { font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif; font-weight: 500; letter-spacing: 0.01em; } .mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0; } .eyebrow { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); display: inline-flex; gap: 10px; align-items: center; } .eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--ink-3); display: inline-block; } h1.display, .display { font-family: "Noto Serif JP", serif; font-weight: 500; font-size: clamp(42px, 6.2vw, 96px); line-height: 1.05; letter-spacing: -0.02em; color: var(--ink); text-wrap: balance; } h2.section { font-family: "Noto Serif JP", serif; font-weight: 500; font-size: clamp(30px, 3.6vw, 52px); line-height: 1.15; letter-spacing: -0.015em; text-wrap: balance; } h3.sub { font-family: "Noto Serif JP", serif; font-weight: 500; font-size: clamp(22px, 2vw, 28px); line-height: 1.25; letter-spacing: -0.01em; } p.lead { font-size: clamp(17px, 1.2vw, 20px); line-height: 1.8; color: var(--ink-2); text-wrap: pretty; max-width: 60ch; } p.body { color: var(--ink-2); text-wrap: pretty; max-width: 62ch; } /* Layout ----------------------------------------------------*/ .wrap { --pad: clamp(20px, 4vw, 56px); max-width: 1360px; margin: 0 auto; padding: 0 var(--pad); } .hairline { height: 1px; background: var(--rule); width: 100%; } .section-pad { padding-block: clamp(80px, 10vw, 160px); } /* Navigation ------------------------------------------------*/ .nav { position: sticky; top: 0; z-index: 30; background: color-mix(in oklch, var(--bg) 82%, transparent); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--rule); } .nav-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 40px; height: 72px; } .brand { display: inline-flex; align-items: center; gap: 10px; font-family: "Noto Serif JP", serif; font-size: 22px; letter-spacing: -0.01em; color: var(--ink); line-height: 1; } .brand img.logo { height: 28px; width: auto; display: block; } :root[data-palette="mono"] .brand img.logo { filter: none; } .brand .tld { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3); } /* Footer bigger mark */ .footer .brand img.logo { height: 34px; } .nav-links { display: flex; gap: 32px; justify-content: center; font-size: 14px; color: var(--ink-2); } .nav-links a { position: relative; padding: 6px 2px; transition: color .2s ease; } .nav-links a:hover { color: var(--ink); } .nav-links a.active { color: var(--ink); } .nav-links a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--ink); } .nav-cta { display: inline-flex; align-items: center; gap: 10px; padding: 10px 18px; border: 1px solid var(--ink); border-radius: 999px; font-size: 13px; color: var(--ink); transition: all .25s ease; justify-self: end; white-space: nowrap; } .nav-cta:hover { background: var(--ink); color: var(--bg); } .nav-cta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); transition: transform .25s ease; } .nav-cta:hover .dot { transform: scale(1.4); background: var(--accent-ink); } /* Hero ------------------------------------------------------*/ .hero { position: relative; padding-top: clamp(60px, 8vw, 120px); padding-bottom: clamp(80px, 10vw, 140px); overflow: hidden; } .hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 96px); align-items: end; } .hero h1 { margin-bottom: 32px; } .hero .lead { margin-bottom: 48px; } .hero-meta { border-top: 1px solid var(--rule); padding-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; } .hero-meta .cell .k { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); display: block; margin-bottom: 8px; } .hero-meta .cell .v { font-family: "Noto Serif JP", serif; font-size: 20px; color: var(--ink); } .hero-art { aspect-ratio: 4 / 5; position: relative; border-radius: 2px; overflow: hidden; background: var(--bg-2); } /* CSS-generated abstract imagery ----------------------------*/ .art-gradient { background: radial-gradient(60% 50% at 70% 30%, var(--grad-b) 0%, transparent 60%), radial-gradient(80% 70% at 20% 80%, var(--grad-a) 0%, transparent 65%), linear-gradient(180deg, var(--grad-c) 0%, var(--bg-2) 100%); } .art-rings { background: radial-gradient(circle at 50% 60%, transparent 0 28%, var(--ink) 28% 28.3%, transparent 28.3% 40%, var(--ink-3) 40% 40.3%, transparent 40.3% 58%, var(--rule) 58% 58.3%, transparent 58.3%), linear-gradient(180deg, var(--bg-2), var(--bg)); } .art-grid { background: linear-gradient(var(--rule) 1px, transparent 1px) 0 0 / 40px 40px, linear-gradient(90deg, var(--rule) 1px, transparent 1px) 0 0 / 40px 40px, var(--bg-2); position: relative; } .art-grid::after { content: ""; position: absolute; inset: 20% 25% 30% 15%; background: radial-gradient(60% 60% at 40% 50%, var(--grad-b), transparent 70%); filter: blur(20px); mix-blend-mode: multiply; opacity: .7; } /* Stats strip -----------------------------------------------*/ .stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); } .stats .cell { padding: 40px 32px; border-right: 1px solid var(--rule); display: flex; flex-direction: column; gap: 8px; } .stats .cell:last-child { border-right: 0; } .stats .n { font-family: "Noto Serif JP", serif; font-size: clamp(40px, 5vw, 64px); line-height: 1; letter-spacing: -0.02em; } .stats .n sup { font-family: "JetBrains Mono", monospace; font-size: .3em; color: var(--ink-3); vertical-align: top; margin-left: 4px; } .stats .k { font-size: 13px; color: var(--ink-3); letter-spacing: 0.04em; } /* Service cards ---------------------------------------------*/ .service-list { display: grid; gap: 0; } .service-row { display: grid; grid-template-columns: 80px 1.2fr 1.4fr 120px; gap: 32px; align-items: start; padding: 56px 0; border-top: 1px solid var(--rule); position: relative; transition: background .3s ease; } .service-row:last-child { border-bottom: 1px solid var(--rule); } .service-row:hover { background: var(--bg-2); } .service-row .num { font-family: "JetBrains Mono", monospace; font-size: 13px; color: var(--ink-3); letter-spacing: 0.1em; padding-top: 10px; } .service-row .title { font-family: "Noto Serif JP", serif; font-size: clamp(26px, 2.4vw, 36px); line-height: 1.2; letter-spacing: -0.01em; color: var(--ink); } .service-row .title small { display: block; font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.2em; color: var(--accent); margin-bottom: 12px; text-transform: uppercase; font-weight: 400; } .service-row .desc { color: var(--ink-2); padding-top: 8px; font-size: 15px; line-height: 1.8; } .service-row .tag { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; } .service-row .tag span { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.05em; color: var(--ink-3); padding: 4px 10px; border: 1px solid var(--rule); border-radius: 999px; } .service-row .go { justify-self: end; align-self: center; width: 52px; height: 52px; border: 1px solid var(--rule); border-radius: 50%; display: grid; place-items: center; transition: all .3s ease; } .service-row:hover .go { background: var(--ink); color: var(--bg); transform: rotate(-45deg); } /* Process / steps -------------------------------------------*/ .process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; counter-reset: step; } .process .step { border-top: 1px solid var(--ink); padding-top: 24px; } .process .step .n { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--ink-3); letter-spacing: 0.15em; margin-bottom: 24px; display: block; } .process .step h4 { font-family: "Noto Serif JP", serif; font-weight: 500; font-size: 22px; line-height: 1.3; letter-spacing: -0.01em; margin-bottom: 12px; } .process .step p { color: var(--ink-2); font-size: 14px; line-height: 1.7; } /* CTA block -------------------------------------------------*/ .cta-block { background: var(--ink); color: var(--bg); padding: clamp(60px, 8vw, 120px) clamp(32px, 5vw, 80px); border-radius: 2px; position: relative; overflow: hidden; } .cta-block h2 { color: var(--bg); } .cta-block p { color: color-mix(in oklch, var(--bg) 75%, var(--ink)); max-width: 50ch; } .cta-block .cta-row { margin-top: 40px; display: flex; gap: 16px; flex-wrap: wrap; } .cta-block::before { content: ""; position: absolute; right: -10%; top: -30%; width: 60%; height: 160%; background: radial-gradient(40% 40% at 50% 50%, color-mix(in oklch, var(--accent) 60%, transparent) 0%, transparent 70%); filter: blur(40px); pointer-events: none; } /* Buttons ---------------------------------------------------*/ .btn { display: inline-flex; align-items: center; gap: 12px; padding: 14px 24px; border-radius: 999px; border: 1px solid currentColor; font-size: 14px; transition: all .25s ease; } .btn:hover { transform: translateY(-1px); } .btn-primary { background: var(--bg); color: var(--ink); border-color: var(--bg); } .btn-primary:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); } .btn-ghost { background: transparent; color: var(--bg); } .btn-ghost:hover { background: color-mix(in oklch, var(--bg) 15%, transparent); } /* Footer ----------------------------------------------------*/ .footer { padding-block: 80px 40px; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: 14px; } .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; } .footer-grid h5 { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; font-weight: 400; } .footer-grid a { display: block; padding: 4px 0; color: var(--ink-2); transition: color .2s; } .footer-grid a:hover { color: var(--ink); } .footer-mark { font-family: "Noto Serif JP", serif; font-size: clamp(60px, 8vw, 120px); line-height: 1; letter-spacing: -0.03em; color: var(--ink); margin-block: 60px 24px; overflow: hidden; } .footer-bottom { display: flex; justify-content: space-between; border-top: 1px solid var(--rule); padding-top: 24px; color: var(--ink-3); font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.1em; } /* Scroll reveal ---------------------------------------------*/ .reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); } .reveal.in { opacity: 1; transform: none; } .parallax { will-change: transform; transition: transform .05s linear; } /* Tweaks panel ----------------------------------------------*/ .tweaks { position: fixed; right: 20px; bottom: 20px; z-index: 100; background: var(--bg); border: 1px solid var(--ink); border-radius: 2px; padding: 20px; display: none; min-width: 240px; box-shadow: 0 20px 40px -20px oklch(0 0 0 / .15); } .tweaks.active { display: block; } .tweaks h6 { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; font-weight: 400; display: flex; justify-content: space-between; } .tweaks .swatches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; } .tweaks .sw { height: 52px; border: 1px solid var(--rule); border-radius: 2px; position: relative; cursor: pointer; overflow: hidden; transition: transform .2s; } .tweaks .sw:hover { transform: translateY(-2px); } .tweaks .sw.active { outline: 2px solid var(--ink); outline-offset: 2px; } .tweaks .sw-label { position: absolute; left: 6px; bottom: 4px; font-family: "JetBrains Mono", monospace; font-size: 9px; letter-spacing: 0.08em; color: var(--ink); text-transform: uppercase; background: color-mix(in oklch, var(--bg) 80%, transparent); padding: 2px 4px; border-radius: 2px; } .sw-warm { background: linear-gradient(135deg, oklch(0.985 0.006 80) 50%, oklch(0.55 0.13 48) 50%); } .sw-cool { background: linear-gradient(135deg, oklch(0.985 0.003 240) 50%, oklch(0.52 0.12 240) 50%); } .sw-mono { background: linear-gradient(135deg, oklch(0.98 0.002 0) 50%, oklch(0.15 0.002 0) 50%); } /* Responsive ------------------------------------------------*/ @media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero-art { aspect-ratio: 4/3; } .service-row { grid-template-columns: 60px 1fr; gap: 20px; } .service-row .desc, .service-row .go { grid-column: 2 / -1; } .service-row .go { justify-self: start; margin-top: 12px; } .process { grid-template-columns: repeat(2, 1fr); } .stats { grid-template-columns: repeat(2, 1fr); } .stats .cell:nth-child(2) { border-right: 0; } .stats .cell:nth-child(-n+2) { border-bottom: 1px solid var(--rule); } .footer-grid { grid-template-columns: 1fr 1fr; } .nav-links { display: none; } }