/* Self-hosted fonts (no third-party requests, GDPR-friendly). */
@font-face{font-family:'Lexend';font-style:normal;font-display:swap;font-weight:100 900;src:url('../fonts/lexend-latin-wght-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:400;src:url('../fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:500;src:url('../fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:600;src:url('../fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:400;src:url('../fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:500;src:url('../fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Lexend';font-style:normal;font-display:swap;font-weight:100 900;src:url('../fonts/lexend-latin-ext-wght-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:400;src:url('../fonts/ibm-plex-sans-latin-ext-400-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:500;src:url('../fonts/ibm-plex-sans-latin-ext-500-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-display:swap;font-weight:600;src:url('../fonts/ibm-plex-sans-latin-ext-600-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:400;src:url('../fonts/ibm-plex-mono-latin-ext-400-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-display:swap;font-weight:500;src:url('../fonts/ibm-plex-mono-latin-ext-500-normal.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}

/* Lothium Consultancy — site styles
   Layout concept: a dark "specimen" hero built around the Lt element tile, then calm light
   sections on a cool paper ground; periodic-table tiles mark the four practice areas. */
:root {
  color-scheme: light;
  /* colour */
  --ink-950: #0A1420;   /* hero / footer ground, from the banner */
  --ink-900: #131F2F;   /* brand navy, from the logo */
  --ink-800: #1D2C42;
  --ink-700: #2B3C57;
  --accent: #7996C6;    /* periwinkle, from the banner: use on dark grounds */
  --accent-ink: #3E5B91;/* darker periwinkle: accent text/links on light grounds */
  --paper: #FFFFFF;
  --paper-2: #F2F4F8;   /* tinted sections */
  --line: #DCE2EB;
  --text: #131F2F;
  --muted: #56647A;
  --on-dark: #E9EDF4;
  --on-dark-muted: #A7B3C6;
  --line-dark: rgba(201, 210, 224, .16);
  --ph-bg: #FFF3D1;     /* placeholder tags */
  --ph-ink: #6B4E00;
  /* type */
  --f-display: "Lexend", "Hiragino Sans", "Noto Sans JP", "Segoe UI", system-ui, sans-serif;
  --f-body: "IBM Plex Sans", "Hiragino Sans", "Noto Sans JP", "Segoe UI", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  /* layout */
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 14px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body, .preview-root {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); text-underline-offset: 3px; }
h1, h2, h3, h4 { font-family: var(--f-display); font-weight: 400; line-height: 1.15; margin: 0; text-wrap: balance; color: inherit; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--paper); color: var(--text); padding: 10px 14px; border-radius: 8px; }
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
section[id] { scroll-margin-top: calc(var(--header-h) + 8px); }

/* ---------- buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: 48px; padding: 0 22px; border-radius: 999px;
  font: 500 15px/1 var(--f-body); letter-spacing: .01em; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-small { min-height: 38px; padding: 0 16px; font-size: 14px; white-space: nowrap; }
.btn-accent { background: var(--accent); color: var(--ink-950); }
.btn-accent:hover { background: #93ACD4; }
.btn-primary { background: var(--ink-900); color: #fff; }
.btn-primary:hover { background: var(--ink-700); }
.btn-ghost { color: var(--on-dark); border-color: var(--line-dark); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: #fff; }
.btn-outline { color: var(--ink-900); border-color: var(--line); background: var(--paper); }
.btn-outline:hover { border-color: var(--ink-900); }
.text-link { font-weight: 500; text-decoration: none; color: var(--accent-ink); }
.text-link:hover { text-decoration: underline; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 12px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-ink);
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.eyebrow.on-dark { color: var(--accent); }

.ph-tag {
  display: inline-block; vertical-align: middle; margin-left: 10px;
  padding: 5px 9px; border-radius: 6px; background: var(--ph-bg); color: var(--ph-ink);
  font: 500 11px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: rgba(10, 20, 32, .94); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line-dark); color: var(--on-dark);
}
.header-inner { display: flex; align-items: center; gap: 28px; min-height: var(--header-h); }
.brand { flex: none; display: block; }
.brand img { height: 46px; width: auto; }
.nav { margin-left: auto; }
.nav ul { display: flex; gap: 22px; }
.nav a { color: var(--on-dark-muted); text-decoration: none; font-size: 15px; font-weight: 500; white-space: nowrap; transition: color .2s; }
.nav a:hover { color: #fff; }
.nav .nav-contact { display: none; }
.header-tools { display: flex; align-items: center; gap: 16px; }
.page-privacy .header-tools { margin-left: auto; }
.lang-switch { display: flex; gap: 4px; }
.lang {
  display: inline-grid; place-items: center; width: 30px; height: 24px; border-radius: 5px;
  font: 500 11px/1 var(--f-mono); letter-spacing: .04em; text-decoration: none;
  color: var(--on-dark-muted); border: 1px solid var(--line-dark);
}
a.lang:hover { color: #fff; border-color: var(--accent); }
.lang.is-current { color: var(--ink-950); background: var(--accent); border-color: var(--accent); }
.lang.is-disabled { opacity: .45; cursor: not-allowed; }
.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--line-dark); background: transparent; color: var(--on-dark); cursor: pointer; place-items: center; }
.menu-bars, .menu-bars::before, .menu-bars::after { display: block; width: 18px; height: 1.5px; background: currentColor; border-radius: 2px; content: ""; transition: transform .25s, opacity .2s; }
.menu-bars { position: relative; }
.menu-bars::before { position: absolute; top: -6px; }
.menu-bars::after { position: absolute; top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-bars { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-bars::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; color: var(--on-dark);
  background:
    linear-gradient(rgba(121,150,198,.05) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, rgba(121,150,198,.05) 1px, transparent 1px) 0 0 / 56px 56px,
    var(--ink-950);
  padding-block: clamp(56px, 9vw, 112px) 0;
}
.hero-glow {
  position: absolute; inset: -20% -10% auto auto; width: 70%; height: 120%; pointer-events: none;
  background: radial-gradient(closest-side, rgba(121,150,198,.22), rgba(121,150,198,0) 70%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-copy { min-width: 0; display: grid; gap: 28px; justify-items: start; }
.hero-title { font-weight: 300; font-size: clamp(2.1rem, 4.6vw, 3.9rem); line-height: 1.07; letter-spacing: -.02em; color: #fff; }
.hero-line { display: block; animation: rise .8s cubic-bezier(.2,.7,.2,1) both; }
.hero-line:nth-child(2) { animation-delay: .08s; }
.hero-line:nth-child(3) { animation-delay: .16s; }
.hero-line:nth-child(4) { animation-delay: .24s; }
.hero-title em { font-style: normal; font-weight: 500; color: var(--accent); }
.hero-lead { max-width: 58ch; font-size: clamp(1rem, 1.3vw, 1.125rem); color: var(--on-dark-muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-visual { display: grid; place-items: center; }
.hero-tile { width: min(100%, 340px); height: auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,.45)); transform: rotate(-3deg); animation: settle 1.1s cubic-bezier(.2,.7,.2,1) both; }
.hero-tile .t-num { font: 400 40px var(--f-display); }
.hero-tile .t-sym { font: 500 190px var(--f-display); letter-spacing: -6px; }
.hero-tile .t-name { font: 400 40px var(--f-display); }
.hero-tile .t-cap { font: 400 17px var(--f-display); letter-spacing: .3px; }
.hero-motto { position: relative; margin-top: clamp(48px, 7vw, 88px); }
.hero-motto p {
  border-top: 1px solid var(--line-dark); padding-block: 22px;
  font: 400 12.5px/1.6 var(--f-mono); letter-spacing: .22em; text-transform: uppercase; color: var(--on-dark-muted);
}
.hero-motto span { color: var(--accent); }
@keyframes rise { from { opacity: .15; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes settle { from { opacity: .2; transform: rotate(-9deg) translateY(16px); } to { opacity: 1; transform: rotate(-3deg); } }

/* ---------- sections ---------- */
.section { padding-block: clamp(64px, 9vw, 116px); }
.section-tint { background: var(--paper-2); }
.section-dark { background: var(--ink-900); color: var(--on-dark); }
.section-head { display: grid; gap: 16px; justify-items: start; max-width: 720px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head h2 { font-size: clamp(1.85rem, 3.4vw, 2.7rem); letter-spacing: -.015em; }
.section-intro { color: var(--muted); font-size: 1.0625rem; max-width: 62ch; }
.section-dark .section-intro { color: var(--on-dark-muted); }

/* element tiles (periodic-table marks) */
.el-tile {
  display: inline-grid; place-items: center; width: 56px; height: 60px; border-radius: 9px;
  border: 1.5px solid var(--ink-900); color: var(--ink-900); background: var(--paper);
  transition: background .25s, color .25s;
}
.el-sym { font: 500 24px/1 var(--f-display); letter-spacing: -.02em; }

/* services */
.service-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.service {
  display: grid; gap: 14px; align-content: start; padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper);
  transition: border-color .25s, box-shadow .25s;
}
.service:hover { border-color: #C3CCDA; box-shadow: 0 18px 40px -24px rgba(19,31,47,.35); }
.service:hover .el-tile { background: var(--ink-900); color: #fff; }
.service h3 { font-size: 1.4rem; font-weight: 500; margin-top: 6px; }
.service > p { color: var(--muted); }
.ticks { display: grid; gap: 8px; margin-top: 4px; }
.ticks li { position: relative; padding-left: 22px; font-size: .96rem; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 1.5px; background: var(--accent-ink); }

/* approach */
.paths { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.path { padding: clamp(28px, 4vw, 48px); display: grid; gap: 12px; align-content: start; background: var(--paper); }
.path-2 { background: var(--ink-900); color: var(--on-dark); }
.path-2 > p:last-child { color: var(--on-dark-muted); }
.path-1 > p:last-child { color: var(--muted); }
.path-label { font: 500 12px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-ink); }
.path-2 .path-label { color: var(--accent); }
.path h3 { font-size: clamp(1.4rem, 2.2vw, 1.75rem); }
.steps-title { font-size: 1.15rem; font-weight: 500; margin: clamp(48px, 6vw, 72px) 0 24px; }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; counter-reset: none; }
.step { display: grid; gap: 8px; align-content: start; padding-top: 18px; border-top: 1.5px solid var(--ink-900); }
.step-num { font: 500 13px/1 var(--f-mono); color: var(--accent-ink); letter-spacing: .08em; }
.step h4 { font-size: 1.15rem; font-weight: 500; }
.step p { color: var(--muted); font-size: .96rem; }

/* engagements */
.engagements { border-top: 1px solid var(--line); }
.engagement { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 20px; align-items: start; padding-block: 24px; border-bottom: 1px solid var(--line); }
.engagement > div { display: grid; grid-template-columns: minmax(0, 280px) minmax(0, 1fr); gap: 8px 32px; align-items: baseline; }
.engagement-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; background: var(--paper-2); color: var(--ink-900); }
.engagement h3 { font-size: 1.2rem; font-weight: 500; }
.engagement p { color: var(--muted); }
.engagement-note { margin-top: 28px; color: var(--muted); font-size: .98rem; }

/* founder variants */
.founder-name { font: 500 1.5rem/1.2 var(--f-display); color: var(--text); }
.founder-role { font: 500 12px/1.4 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); }
.founder-avatar { border-radius: 50%; object-fit: cover; }

.founder-compact {
  display: grid; grid-template-columns: 112px minmax(0, 1fr) auto; gap: 28px; align-items: center;
  padding: clamp(22px, 3vw, 32px); background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
}
.founder-compact .founder-avatar { width: 112px; height: 112px; }
.founder-compact-body { display: grid; gap: 6px; }
.founder-compact-body > p:last-child { color: var(--muted); max-width: 64ch; margin-top: 4px; }

.founder-profile { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 64px); align-items: start; }
.founder-photo { margin: 0; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 5; max-width: 100%; background: var(--line); }
.founder-photo img { width: 100%; height: 100%; object-fit: cover; }
.founder-profile-body { display: grid; gap: 16px; }
.founder-profile-body > p:not(.founder-name):not(.founder-role):not(.founder-foot) { color: var(--muted); max-width: 64ch; }
.founder-profile-body .founder-role { margin-top: -8px; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 12px 0 0; }
.fact { background: var(--paper); padding: 18px 20px; display: grid; gap: 4px; }
.fact dt { font: 400 1.9rem/1 var(--f-display); color: var(--ink-900); font-variant-numeric: tabular-nums; }
.fact dd { margin: 0; color: var(--muted); font-size: .92rem; }
.founder-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; margin-top: 6px; color: var(--muted); font-size: .95rem; }

.founder-note { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.note-body { display: grid; gap: 20px; position: relative; padding-top: 34px; }
.note-body::before { content: "\201C"; position: absolute; top: -28px; left: -6px; font: 400 120px/1 var(--f-display); color: var(--accent); opacity: .55; }
.note-title { font: 500 12px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-ink); }
.note-text { font: 300 clamp(1.2rem, 1.9vw, 1.5rem)/1.5 var(--f-display); color: var(--ink-900); max-width: 40ch; }
.note-sign { font: 500 14px/1 var(--f-mono); color: var(--muted); letter-spacing: .04em; }
.note-card { display: grid; gap: 8px; justify-items: start; padding: 28px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.note-card .founder-avatar { width: 84px; height: 84px; margin-bottom: 8px; }
.note-card .founder-name { font-size: 1.25rem; }
.note-facts { display: grid; gap: 6px; margin: 12px 0 8px; padding-top: 14px; border-top: 1px solid var(--line); width: 100%; color: var(--muted); font-size: .93rem; }
.note-facts strong { color: var(--ink-900); font-weight: 600; margin-right: 4px; }

/* proof placeholders */
.logo-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-bottom: 28px; }
.logo-slot { display: grid; place-items: center; height: 72px; border: 1.5px dashed var(--line); border-radius: 10px; color: #8C97A8; font: 500 11px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; text-align: center; padding: 0 8px; }
.cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.case { display: grid; gap: 10px; align-content: start; padding: 26px; border: 1.5px dashed var(--line); border-radius: var(--radius); }
.case-sector { font: 500 11px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); }
.case h3 { font-size: 1.2rem; font-weight: 500; }
.case p:last-child { color: var(--muted); font-size: .95rem; }
.quotes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.quote { margin: 0; padding: 28px; border: 1.5px dashed var(--line); border-radius: var(--radius); display: grid; gap: 16px; }
.quote blockquote { margin: 0; font: 300 1.2rem/1.5 var(--f-display); color: var(--ink-900); }
.quote figcaption { color: var(--muted); font-size: .92rem; }

/* pricing */
.prices { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.price { display: grid; gap: 12px; align-content: start; padding: 28px 24px; border: 1px solid var(--line-dark); border-radius: var(--radius); background: rgba(255,255,255,.02); }
.price h3 { font-size: 1.1rem; font-weight: 500; color: #fff; }
.price-figure { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; }
.price-amount { font: 400 2.1rem/1 var(--f-display); color: #fff; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.price-from, .price-unit { font: 400 13px/1 var(--f-mono); color: var(--on-dark-muted); }
.price > p:last-child { color: var(--on-dark-muted); font-size: .95rem; }
.price-note { margin-top: 28px; font-size: .88rem; color: var(--on-dark-muted); max-width: 80ch; }

/* research */
.research-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.research-grid .section-head { margin-bottom: 0; position: sticky; top: calc(var(--header-h) + 32px); }
.research-body { display: grid; gap: 18px; min-width: 0; }
.patent { display: grid; gap: 10px; padding: 28px; border-radius: var(--radius); background: var(--ink-900); color: var(--on-dark); }
.patent-label, .pubs-label { font: 500 12px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.pubs-label { color: var(--accent-ink); margin-top: 18px; }
.patent h3 { font-size: 1.3rem; color: #fff; }
.patent-meta { font: 400 13px/1.6 var(--f-mono); color: var(--on-dark-muted); }
.patent .text-link { color: var(--accent); }
.pubs { border-top: 1px solid var(--line); }
.pub { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px; padding-block: 16px; border-bottom: 1px solid var(--line); }
.pub-year { font: 500 13px/1.8 var(--f-mono); color: var(--accent-ink); font-variant-numeric: tabular-nums; }
.pub-text { display: grid; gap: 2px; min-width: 0; }
.pub-title { font-weight: 500; }
.pub-venue { color: var(--muted); font-size: .92rem; font-style: italic; }

/* contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.contact-main { min-width: 0; }
.contact-form { display: grid; gap: 18px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-size: 14px; font-weight: 500; }
.opt { color: var(--muted); font-weight: 400; }
.field input, .field textarea {
  width: 100%; font: 400 16px/1.5 var(--f-body); color: var(--text); background: var(--paper);
  border: 1px solid #C9D1DD; border-radius: 10px; padding: 12px 14px; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 150px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent-ink); box-shadow: 0 0 0 3px rgba(121,150,198,.3); }
.field-check { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.field-check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--ink-900); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.form-status { font-size: 15px; color: var(--muted); min-width: 0; }
.form-status.is-ok { color: #1D6B45; }
.form-status.is-error { color: #A12C2C; }
.contact-side { padding: clamp(24px, 3vw, 36px); border-radius: var(--radius); background: var(--ink-900); color: var(--on-dark); display: grid; gap: 22px; }
.side-title { font: 400 1.35rem/1.2 var(--f-display); color: #fff; }
.direct { display: grid; gap: 18px; margin: 0; }
.direct dt { font: 500 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.direct dd { margin: 0; color: var(--on-dark-muted); display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; overflow-wrap: anywhere; }
.direct a { color: #fff; text-decoration: none; font-weight: 500; }
.direct a:hover { text-decoration: underline; }
.copy-btn { font: 500 11px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; padding: 6px 9px; border-radius: 6px; border: 1px solid var(--line-dark); background: transparent; color: var(--on-dark-muted); cursor: pointer; }
.copy-btn:hover { color: #fff; border-color: var(--accent); }

/* privacy / prose */
.prose { max-width: 780px; }
.prose h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin: 18px 0 8px; }
.prose h2 { font-size: 1.35rem; font-weight: 500; margin: 36px 0 10px; }
.prose h3 { font-size: 1.05rem; font-weight: 500; margin: 20px 0 6px; font-family: var(--f-body); }
.prose p, .prose li { color: #2E3B50; }
.prose p + p { margin-top: 10px; }
.prose ul { list-style: disc; padding-left: 22px; display: grid; gap: 6px; margin-top: 8px; }
.pp-updated { font: 400 13px/1 var(--f-mono); color: var(--muted); margin-bottom: 20px; }
.privacy-preview { border-top: 1px solid var(--line); }

/* footer */
.site-footer { background: var(--ink-950); color: var(--on-dark-muted); padding-block: 56px 28px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr); gap: 32px; align-items: start; }
.footer-brand { display: grid; gap: 14px; }
.footer-brand img { height: 64px; width: auto; }
.footer-legal strong { color: var(--on-dark); font-weight: 500; }
.footer-links { display: grid; gap: 8px; justify-items: start; }
.footer-links a { color: var(--on-dark); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 40px; padding-top: 20px; font-size: .85rem;
  background: linear-gradient(var(--line-dark), var(--line-dark)) var(--gutter) 0 / calc(100% - 2 * var(--gutter)) 1px no-repeat; }
.footer-motto { font-family: var(--f-mono); letter-spacing: .12em; text-transform: uppercase; font-size: .75rem; }

/* ---------- Japanese ---------- */
:lang(ja) { line-break: strict; }
:lang(ja) h1, :lang(ja) h2, :lang(ja) h3, :lang(ja) h4 { letter-spacing: 0; line-height: 1.35; word-break: auto-phrase; }
:lang(ja) .hero-title { letter-spacing: 0; line-height: 1.25; font-size: clamp(1.7rem, 4.2vw, 3.4rem); }
:lang(ja) .section-intro, :lang(ja) .service p, :lang(ja) .path p, :lang(ja) .step p, :lang(ja) .engagement p { line-height: 1.8; }
:lang(ja) .pub-venue { font-style: normal; }

/* ---------- responsive ---------- */
@media (min-width: 901px) { .hero-line { white-space: nowrap; } }
@media (max-width: 1240px) {
  .menu-toggle { display: grid; }
  .nav { position: absolute; left: 0; right: 0; top: 100%; margin: 0; background: var(--ink-950); border-bottom: 1px solid var(--line-dark); display: none; }
  .nav.is-open { display: block; }
  .nav ul { flex-direction: column; gap: 0; padding: 8px var(--gutter) 16px; }
  .nav a { display: block; padding: 12px 0; font-size: 17px; border-bottom: 1px solid var(--line-dark); }
  .header-tools { margin-left: auto; }
}
@media (max-width: 1080px) {
  .prices { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .engagement > div { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { order: -1; justify-items: start; }
  .hero-tile { width: 150px; }
  .service-grid, .paths, .cases, .quotes, .founder-profile, .founder-note, .research-grid, .contact-grid, .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-grid .section-head { position: static; }
  .founder-photo { max-width: 420px; }
  .logo-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .founder-compact { grid-template-columns: 88px minmax(0, 1fr); }
  .founder-compact .founder-avatar { width: 88px; height: 88px; }
  .founder-compact .btn { grid-column: 1 / -1; justify-self: start; }
}
@media (max-width: 600px) {
  body, .preview-root { font-size: 16px; }
  .header-cta { white-space: nowrap; display: none; }
  .nav .nav-contact { display: block; }
  .brand img { height: 40px; }
  .header-inner { gap: 12px; }
  .lang { width: 26px; }
  .steps, .prices, .field-row { grid-template-columns: minmax(0, 1fr); }
  .logo-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .founder-compact { grid-template-columns: minmax(0, 1fr); }
  .hero-motto p { letter-spacing: .14em; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- preview-only controls ---------- */
.preview-root:has(.preview-bar) { padding-bottom: 88px; }
.preview-root[data-founder="compact"] .founder:not([data-variant="compact"]),
.preview-root[data-founder="profile"] .founder:not([data-variant="profile"]),
.preview-root[data-founder="note"] .founder:not([data-variant="note"]),
.preview-root[data-pricing="hidden"] #pricing,
.preview-root[data-pricing="hidden"] .nav-pricing { display: none; }
.preview-bar {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 60;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px 18px; max-width: calc(100% - 24px);
  padding: 10px 14px; border-radius: 16px; background: rgba(10,20,32,.96); color: var(--on-dark);
  border: 1px solid var(--line-dark); box-shadow: 0 16px 40px rgba(0,0,0,.35); font-size: 13px;
}
.pb-title { font: 500 11px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ph-ink); background: var(--ph-bg); padding: 6px 8px; border-radius: 6px; }
.pb-group { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.pb-label { color: var(--on-dark-muted); margin-right: 4px; }
.pb-group button { font: 500 12px/1 var(--f-body); padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line-dark); background: transparent; color: var(--on-dark); cursor: pointer; }
.pb-group button[aria-pressed="true"] { background: var(--accent); color: var(--ink-950); border-color: var(--accent); }