/* ═══════════════════════════════════════════════════
   DENSETSU — MAIN STYLESHEET v2
   ✏️ Edit the :root variables to retheme the whole site
═══════════════════════════════════════════════════ */

:root {
  --bg:        #f7f4ee;
  --ink:       #111110;
  --red:       #c0392b;
  --soft:      #f0ede5;
  --ink-45:    rgba(0,0,0,0.45);
  --ink-42:    rgba(0,0,0,0.42);
  --ink-38:    rgba(0,0,0,0.38);
  --ink-32:    rgba(0,0,0,0.32);
  --ink-28:    rgba(0,0,0,0.28);
  --ink-22:    rgba(0,0,0,0.22);
  --ink-12:    rgba(0,0,0,0.12);
  --ink-08:    rgba(0,0,0,0.08);
  --dark:      #111110;
  --darkest:   #0d0c0b;
  --card-dark: #1a1a18;
  --scene:     #0a0a0f;
  --green:     #22c55e;
  --amber:     #f59e0b;
  --mono:      'Courier New', Courier, monospace;
}

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

em { font-style: normal; color: var(--red); }
a  { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0 48px;
  border-bottom: 2px solid var(--ink);
  height: 64px;
  gap: 48px;
}
.logo-block { display: flex; align-items: center; }
.logo-seal {
  width: 36px; height: 36px;
  background: var(--red);
  display: flex; align-items: center; justify-content: center;
  margin-right: 12px; flex-shrink: 0;
}
.logo-seal span { color: var(--bg); font-size: 15px; line-height: 1; }
.logo-name { font-size: 15px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; }
.nav-links { display: flex; list-style: none; height: 100%; border-left: 0.5px solid var(--ink-12); }
.nav-links li { height: 100%; }
.nav-links a {
  font-size: 10px; color: var(--ink-38);
  letter-spacing: 0.15em; text-transform: uppercase;
  display: flex; align-items: center;
  height: 100%; padding: 0 24px;
  border-right: 0.5px solid var(--ink-12);
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover { color: var(--ink); background: rgba(0,0,0,0.03); }
.nav-cta {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 10px 20px;
  background: var(--ink); color: var(--bg);
  border: none; cursor: pointer; white-space: nowrap;
  transition: background 0.15s;
}
.nav-cta:hover { background: #2a2a28; }

/* HEADER */
.header-block { display: grid; grid-template-columns: 1fr 320px; border-bottom: 2px solid var(--ink); }
.hero-left {
  padding: 52px 48px;
  border-right: 2px solid var(--ink);
  display: flex; flex-direction: column; justify-content: space-between;
}
.hero-kicker { display: flex; align-items: center; gap: 12px; margin-bottom: 36px; }
.kicker-line { width: 28px; height: 2px; background: var(--red); flex-shrink: 0; }
.kicker-text { font-size: 9px; letter-spacing: 0.22em; color: var(--red); text-transform: uppercase; font-weight: 500; }
.hero-title { font-size: 48px; font-weight: 400; line-height: 1.06; letter-spacing: -0.03em; }
.hero-sub { font-size: 15px; color: var(--ink-45); line-height: 1.6; margin-top: 20px; max-width: 480px; }
.hero-bottom { display: flex; justify-content: flex-end; padding-top: 36px; border-top: 0.5px solid var(--ink-12); margin-top: 36px; }

.header-right { display: flex; flex-direction: column; }
.kanji-block { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 24px; border-bottom: 1px solid var(--ink-08); }
.kanji-char { font-size: 64px; line-height: 1; font-weight: 400; }
.kanji-label { font-size: 8px; letter-spacing: 0.16em; color: var(--ink-22); text-transform: uppercase; text-align: center; margin-top: 10px; }
.grid-block { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--ink); }
.grid-cell { background: var(--bg); padding: 14px; }
.grid-num { font-size: 20px; font-weight: 500; font-family: var(--mono); line-height: 1; margin-bottom: 4px; }
.grid-num.red { color: var(--red); }
.grid-label { font-size: 8px; letter-spacing: 0.12em; color: var(--ink-32); text-transform: uppercase; }

/* SHARED SECTION PARTS */
.section-header { display: grid; grid-template-columns: 200px 1fr; border-bottom: 2px solid var(--ink); }
.section-col-label { padding: 28px 32px; border-right: 2px solid var(--ink); display: flex; align-items: flex-end; }
.section-col-label span { font-size: 10px; letter-spacing: 0.22em; color: var(--ink-28); text-transform: uppercase; }
.section-intro { padding: 28px 40px; font-size: 13px; color: var(--ink-42); line-height: 1.7; max-width: 580px; }
.section-spacer { border-right: 2px solid var(--ink); }

/* SERVICES */
.services-section { border-bottom: 2px solid var(--ink); }
.services-grid { display: grid; grid-template-columns: 200px repeat(3, 1fr); }
.service-item { padding: 40px 32px; border-right: 0.5px solid var(--ink-12); }
.service-item:last-child { border-right: none; }
.service-num { font-size: 56px; font-weight: 400; color: rgba(0,0,0,0.05); font-family: var(--mono); line-height: 1; margin-bottom: 14px; }
.service-tag { font-size: 9px; letter-spacing: 0.2em; color: var(--red); text-transform: uppercase; margin-bottom: 8px; }
.service-title { font-size: 17px; font-weight: 500; margin-bottom: 14px; line-height: 1.2; }
.service-desc { font-size: 12px; color: var(--ink-45); line-height: 1.75; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.stag { font-size: 9px; font-family: var(--mono); color: var(--ink-32); border: 0.5px solid var(--ink-12); padding: 3px 7px; }

/* HOW IT WORKS */
.hiw-section { border-bottom: 2px solid var(--ink); }
.hiw-grid { display: grid; grid-template-columns: 200px repeat(4, 1fr); }
.hiw-item { padding: 36px 24px; border-right: 0.5px solid var(--ink-12); }
.hiw-item:last-child { border-right: none; }
.hiw-num { font-size: 48px; font-weight: 400; color: rgba(0,0,0,0.05); font-family: var(--mono); line-height: 1; margin-bottom: 12px; }
.hiw-title { font-size: 14px; font-weight: 500; margin-bottom: 10px; }
.hiw-desc { font-size: 12px; color: var(--ink-42); line-height: 1.7; }
.hiw-accent { font-size: 11px; font-family: var(--mono); color: var(--red); margin-top: 12px; }

/* WORK / TRACK RECORD */
.trust-section { border-bottom: 2px solid var(--ink); }
.trust-body { display: grid; grid-template-columns: 200px 1fr 1px 1fr; }
.trust-spacer { border-right: 2px solid var(--ink); }
.trust-divider { background: var(--ink); }
.trust-col { padding: 40px 36px; }
.trust-col-tag { font-size: 9px; letter-spacing: 0.2em; color: var(--ink-28); text-transform: uppercase; margin-bottom: 6px; }
.trust-col-title { font-size: 15px; font-weight: 500; margin-bottom: 6px; }
.trust-col-sub { font-size: 11px; color: var(--ink-38); line-height: 1.6; margin-bottom: 28px; font-style: italic; }
.logo-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.logo-pill {
  font-size: 11px; font-weight: 500; font-family: var(--mono);
  color: rgba(0,0,0,0.55); border: 0.5px solid var(--ink-12);
  padding: 7px 12px; background: var(--soft);
}
.logo-pill.red { background: var(--red); color: var(--bg); border-color: var(--red); }
.trust-sector-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.sector-tag { font-size: 9px; letter-spacing: 0.1em; color: var(--ink-28); text-transform: uppercase; border: 0.5px solid var(--ink-08); padding: 3px 8px; }
.first-note { margin-top: 20px; padding: 14px 16px; border: 0.5px solid var(--ink-08); background: var(--soft); }
.first-note-label { font-size: 9px; letter-spacing: 0.14em; color: var(--ink-28); text-transform: uppercase; margin-bottom: 6px; }
.first-note-text { font-size: 11px; color: var(--ink-45); line-height: 1.6; }

/* CREW */
.crew-section { display: grid; grid-template-columns: 200px 1fr; border-bottom: 2px solid var(--ink); }
.crew-label-col { border-right: 2px solid var(--ink); padding: 32px; display: flex; flex-direction: column; justify-content: space-between; }
.crew-label-col > span { font-size: 10px; letter-spacing: 0.22em; color: var(--ink-28); text-transform: uppercase; }
.crew-label-sub { font-size: 9px; color: var(--ink-22); line-height: 1.6; margin-top: 10px; font-family: var(--mono); }
.online-indicator { display: flex; align-items: center; gap: 8px; }
.online-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: pulse 2s ease-in-out infinite; flex-shrink: 0; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.35;} }
.online-label { font-size: 9px; font-family: var(--mono); color: var(--ink-28); letter-spacing: 0.06em; }
.crew-right { padding: 32px; display: flex; flex-direction: column; gap: 16px; }
.crew-cards { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 2px; background: var(--ink); }

.crew-card { background: var(--bg); padding: 18px 14px; cursor: default; }
.crew-card.founder { background: var(--dark); }
.crew-card.clickable { cursor: pointer; transition: background 0.15s; }
.crew-card.clickable:hover { background: #eceae2; }
.crew-card.clickable.expanded { background: var(--dark); }

.card-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; }
.agent-status { display: flex; align-items: center; gap: 5px; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.status-dot.green { background: var(--green); }
.status-dot.amber { background: var(--amber); }
.status-label { font-size: 8px; font-family: var(--mono); color: var(--ink-28); letter-spacing: 0.06em; text-transform: uppercase; }
.status-label.inv { color: rgba(255,255,255,0.28); }
.expand-hint { font-size: 9px; color: var(--ink-22); }
.crew-card.expanded .expand-hint { color: rgba(255,255,255,0.4); }

.card-index { font-size: 9px; font-family: var(--mono); color: var(--ink-22); margin-bottom: 12px; }
.founder .card-index { color: rgba(255,255,255,0.18); }
.card-codename { font-size: 16px; font-weight: 500; margin-bottom: 2px; }
.founder .card-codename { color: #f7f4ee; }
.expanded .card-codename { color: #f7f4ee !important; }
.card-role { font-size: 9px; letter-spacing: 0.1em; color: var(--ink-28); text-transform: uppercase; margin-bottom: 12px; }
.founder .card-role { color: rgba(255,255,255,0.28); }
.expanded .card-role { color: rgba(255,255,255,0.3) !important; }
.card-task { font-size: 10px; font-family: var(--mono); color: var(--ink-42); line-height: 1.4; }
.founder .card-task { color: rgba(255,255,255,0.35); }
.expanded .card-task { color: rgba(255,255,255,0.35) !important; }

.card-expanded-content { display: none; margin-top: 14px; padding-top: 14px; border-top: 0.5px solid rgba(255,255,255,0.1); }
.crew-card.expanded .card-expanded-content { display: block; }
.exp-section-label { font-size: 8px; letter-spacing: 0.16em; color: rgba(255,255,255,0.25); text-transform: uppercase; margin-bottom: 6px; }
.exp-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 12px; }
.exp-tag-pill { font-size: 8px; font-family: var(--mono); color: rgba(255,255,255,0.45); border: 0.5px solid rgba(255,255,255,0.15); padding: 2px 6px; }
.exp-tag-pill.tool { border-color: rgba(192,57,43,0.5); color: #f0a898; }
.exp-tag-pill.ws   { border-color: rgba(34,197,94,0.4); color: #86efac; }

/* PONG SCENE */
.pong-scene { background: #0f1a0f; border: 0.5px solid rgba(255,255,255,0.06); padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.pong-players { display: flex; align-items: flex-end; gap: 12px; }
.player-card { display: flex; flex-direction: column; gap: 6px; flex-shrink: 0; width: 110px; }
.player-card.right { align-items: flex-end; }
.player-meta { display: flex; flex-direction: column; gap: 2px; }
.player-card.right .player-meta { align-items: flex-end; }
.player-name { font-size: 11px; font-weight: 500; color: rgba(255,255,255,0.75); font-family: var(--mono); }
.player-sub { font-size: 8px; font-family: var(--mono); color: rgba(255,255,255,0.25); text-transform: uppercase; letter-spacing: 0.1em; }
.player-avatar { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; }
.player-avatar.green { border: 1.5px solid var(--green); }
.player-avatar.green span { font-size: 11px; font-weight: 500; color: var(--green); font-family: var(--mono); }
.player-avatar.amber { border: 1.5px solid var(--amber); margin-left: auto; }
.player-avatar.amber span { font-size: 11px; font-weight: 500; color: var(--amber); font-family: var(--mono); }
.bubble-wrap { flex: 1; display: flex; flex-direction: column; gap: 6px; justify-content: flex-end; padding-bottom: 4px; }
.speech { background: rgba(255,255,255,0.04); border: 0.5px solid rgba(255,255,255,0.08); padding: 7px 10px; font-size: 10px; font-family: var(--mono); color: rgba(255,255,255,0.4); line-height: 1.5; }
.speech.left  { border-left:  2px solid var(--green); }
.speech.right-b { border-right: 2px solid var(--amber); text-align: right; }
.speech-who { font-size: 8px; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 3px; }
.speech.left .speech-who  { color: var(--green); }
.speech.right-b .speech-who { color: var(--amber); }
.pong-table-row { display: flex; align-items: center; gap: 10px; }
.score-l { font-size: 13px; font-family: var(--mono); color: var(--green); font-weight: 500; min-width: 20px; text-align: right; }
.score-r { font-size: 13px; font-family: var(--mono); color: var(--amber); font-weight: 500; min-width: 20px; }
.pong-table { flex: 1; height: 18px; background: #0d2210; border: 0.5px solid rgba(34,197,94,0.15); position: relative; display: flex; align-items: center; justify-content: center; }
.pong-center-line { width: 0.5px; height: 100%; background: rgba(255,255,255,0.08); }
.pong-ball { width: 5px; height: 5px; border-radius: 50%; background: #f7f4ee; position: absolute; animation: pingpong 2.4s ease-in-out infinite; }
@keyframes pingpong { 0%,100%{left:14%;} 50%{left:80%;} }
.paddle { width: 2px; height: 10px; position: absolute; }
.paddle.l { left: 8px; background: var(--green); }
.paddle.r { right: 8px; background: var(--amber); }
.pong-note { font-size: 9px; font-family: var(--mono); color: rgba(255,255,255,0.18); font-style: italic; text-align: center; }

/* SECRET SAUCE */
.sauce-teaser {
  background: #111110; border-bottom: 0.5px solid rgba(255,255,255,0.06);
  padding: 28px 48px;
  display: grid; grid-template-columns: 200px 1fr auto;
  gap: 48px; align-items: center;
}
.sauce-tag { font-size: 9px; letter-spacing: 0.22em; color: rgba(255,255,255,0.22); text-transform: uppercase; }
.sauce-text { font-size: 15px; color: #f7f4ee; line-height: 1.4; }
.sauce-cta {
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.35); border: 0.5px solid rgba(255,255,255,0.15);
  padding: 10px 18px; white-space: nowrap; cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.sauce-cta:hover { color: #f7f4ee; border-color: rgba(255,255,255,0.4); }

.toggle-row {
  display: grid; grid-template-columns: 200px 1fr;
  border-bottom: 0.5px solid rgba(0,0,0,0.08);
  cursor: pointer; transition: background 0.15s;
  background: #111110;
}
.toggle-row:hover { background: #1a1a18; }
.toggle-row.open { border-bottom: 2px solid var(--ink); }
.toggle-label-col { padding: 22px 32px; border-right: 2px solid rgba(255,255,255,0.08); display: flex; align-items: center; }
.toggle-label-col span { font-size: 10px; letter-spacing: 0.22em; color: rgba(255,255,255,0.28); text-transform: uppercase; }
.toggle-right { padding: 22px 40px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.toggle-desc { font-size: 13px; color: rgba(255,255,255,0.32); line-height: 1.5; }
.toggle-icon { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.toggle-icon-text { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.25); font-family: var(--mono); }
.toggle-chevron {
  width: 24px; height: 24px; border: 0.5px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; color: rgba(255,255,255,0.35);
  transition: transform 0.25s; flex-shrink: 0;
}
.toggle-chevron.open { transform: rotate(180deg); }

.ilx-body-wrap { overflow: hidden; max-height: 0; transition: max-height 0.45s ease; }
.ilx-body-wrap.open { max-height: 2600px; border-bottom: 2px solid var(--ink); }
.ilx-body { display: grid; grid-template-columns: 200px 1fr; background: #111110; }
.ilx-spacer { border-right: 2px solid rgba(255,255,255,0.08); }
.ilx-content { padding: 40px; display: flex; flex-direction: column; gap: 32px; }

.problem-solution { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: rgba(255,255,255,0.06); }
.ps-cell      { background: #1a1a18; padding: 28px; }
.ps-cell.dark  { background: #1a1a18; }
.ps-cell.light { background: var(--bg); }
.ps-tag { font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 10px; }
.ps-tag.problem  { color: rgba(255,255,255,0.28); }
.ps-tag.solution { color: var(--ink-28); }
.ps-title      { font-size: 16px; font-weight: 500; color: #f7f4ee; margin-bottom: 10px; line-height: 1.25; }
.ps-title.dark { color: var(--ink); }
.ps-desc      { font-size: 12px; color: rgba(255,255,255,0.38); line-height: 1.75; }
.ps-desc.dark { color: var(--ink-45); }

.diagram-wrap { background: var(--scene); padding: 28px 32px; display: flex; flex-direction: column; gap: 24px; }
.diagram-label { font-size: 9px; letter-spacing: 0.2em; color: rgba(255,255,255,0.2); text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
.diagram-label::after { content:''; flex:1; height:0.5px; background:rgba(255,255,255,0.07); }
.diagram-divider { height: 0.5px; background: rgba(255,255,255,0.06); }
.acts-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: rgba(255,255,255,0.06); }
.act-cell { background: var(--scene); padding: 12px 14px; display: flex; align-items: flex-start; gap: 10px; }
.act-keyword { font-size: 10px; font-family: var(--mono); color: var(--red); font-weight: 500; white-space: nowrap; min-width: 58px; margin-top: 1px; }
.act-desc { font-size: 10px; color: rgba(255,255,255,0.28); line-height: 1.5; font-family: var(--mono); }

.article-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; background: rgba(255,255,255,0.04);
  border: 0.5px solid rgba(255,255,255,0.08); cursor: pointer;
  transition: background 0.15s;
}
.article-link:hover { background: rgba(255,255,255,0.07); }
.al-left { display: flex; flex-direction: column; gap: 3px; }
.al-tag { font-size: 8px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--red); font-family: var(--mono); }
.al-title { font-size: 13px; font-weight: 500; color: #f7f4ee; }
.al-arrow { font-size: 16px; color: rgba(255,255,255,0.25); }

/* CONTACT */
.contact-section {
  background: var(--dark); padding: 72px 48px;
  display: grid; grid-template-columns: 1fr 300px;
  gap: 80px; align-items: center;
  border-bottom: 2px solid var(--red);
}
.contact-pre { font-size: 9px; letter-spacing: 0.22em; color: rgba(255,255,255,0.22); text-transform: uppercase; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.contact-pre::before { content:''; display:inline-block; width:24px; height:2px; background:var(--red); }
.contact-title { font-size: 36px; font-weight: 400; color: #f7f4ee; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 14px; }
.contact-sub { font-size: 13px; color: rgba(255,255,255,0.35); line-height: 1.7; max-width: 400px; }
.contact-right { display: flex; flex-direction: column; gap: 12px; }
.contact-item { padding: 18px 20px; border: 0.5px solid rgba(255,255,255,0.08); }
.contact-item-label { font-size: 8px; letter-spacing: 0.18em; color: rgba(255,255,255,0.22); text-transform: uppercase; margin-bottom: 4px; }
.contact-item-value { font-size: 12px; color: #f7f4ee; font-family: var(--mono); }
.btn-contact {
  display: block; padding: 15px 20px;
  background: var(--red); color: #f7f4ee;
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 500;
  border: none; cursor: pointer; text-align: center;
  transition: background 0.15s;
}
.btn-contact:hover { background: #a93224; }

/* FOOTER */
.footer { padding: 22px 48px; display: flex; align-items: center; justify-content: space-between; background: var(--darkest); }
.footer-left { font-size: 10px; color: rgba(255,255,255,0.16); letter-spacing: 0.06em; }
.footer-right { font-size: 9px; color: rgba(255,255,255,0.1); font-family: var(--mono); }