/*
  BOAR Partners Decision Horizon Web System
  Audience: BOAR Partnersの相談を検討する経営者・事業責任者
  Single action: Newsで会社の現在地を理解し、Contactで相談を始める
  Aesthetic thesis: 静かな暗部と低い緑の地平線で、経営判断の奥行きを表す
  Type roles: Display=Helvetica Neue Bold / Body=Japanese Gothic / Utility=Monospace
  Signature: 地平線から立ち上がる低輝度の光
  Ban: rounded cards, glass UI, bright-green fills, decorative icons, oversized section titles, desktop-only navigation
  Stack: static HTML/CSS/JS on Cloudflare Pages, no frontend framework
*/

:root{
  color-scheme:dark;
  --dh-black:#020303;
  --dh-black-soft:#070908;
  --dh-paper:#f5f5f1;
  --dh-muted:#969b98;
  --dh-dim:#666b68;
  --dh-rule:rgba(245,245,241,.16);
  --dh-rule-soft:rgba(245,245,241,.08);
  --dh-green:#57b87a;
  --dh-green-deep:#062b1b;
  --dh-green-mid:#0d5a36;
  --dh-surface:rgba(2,3,3,.82);
  --dh-display:"Helvetica Neue",Helvetica,Arial,sans-serif;
  --dh-sans:"Helvetica Neue","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --dh-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --dh-gutter:clamp(22px,3.4vw,56px);
  --dh-shell:1560px;
  --dh-reading:760px;
  --dh-section-title:clamp(34px,4.8vw,76px);
  --dh-page-title:clamp(72px,12vw,184px);
  --dh-ease:cubic-bezier(.22,.76,.22,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px;background:var(--dh-black);overflow-x:clip}
body{margin:0;background:var(--dh-black);color:var(--dh-paper);font-family:var(--dh-sans);overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:50;pointer-events:none;opacity:.035;mix-blend-mode:screen;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.72'/%3E%3C/svg%3E")}
a{color:inherit!important;text-decoration:none}
button,input,textarea,select{font:inherit}
button{color:inherit}
img{display:block;max-width:100%}
[hidden]{display:none!important}
.dh-shell{width:min(100%,var(--dh-shell));margin-inline:auto;padding-inline:var(--dh-gutter)}
.dh-display{margin:0;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;font-family:var(--dh-display);font-weight:700;letter-spacing:-.055em;text-transform:uppercase}
.dh-eyebrow{margin:0;color:var(--dh-muted);font:700 9px/1 var(--dh-mono);letter-spacing:.24em;text-transform:uppercase}
.dh-rule{height:1px;background:var(--dh-rule)}
.dh-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.dh-atmosphere{position:fixed;z-index:0;inset:0;pointer-events:none;overflow:hidden}
.dh-atmosphere::before{content:"";position:absolute;left:-14%;right:-14%;top:61%;height:44%;background:radial-gradient(ellipse 62% 76% at 50% 0%,rgba(48,151,92,.29) 0%,rgba(13,90,54,.14) 31%,rgba(6,43,27,.05) 55%,transparent 78%);filter:blur(22px);animation:dh-breathe 10s ease-in-out infinite}
.dh-atmosphere::after{content:"";position:absolute;left:-2%;right:-2%;top:61.6%;height:1px;background:linear-gradient(90deg,transparent,rgba(28,113,68,.18) 18%,rgba(146,218,172,.72) 50%,rgba(28,113,68,.20) 82%,transparent);box-shadow:0 0 12px rgba(70,170,111,.42),0 0 34px rgba(13,90,54,.28);animation:dh-line 10s ease-in-out infinite}
@keyframes dh-breathe{0%,100%{opacity:.64;transform:scaleX(.94) translateY(3px)}50%{opacity:1;transform:scaleX(1.05) translateY(-4px)}}
@keyframes dh-line{0%,100%{opacity:.45;transform:scaleX(.9)}50%{opacity:.95;transform:scaleX(1)}}

.dh-header{position:fixed;z-index:70;inset:0 0 auto;height:78px;display:flex;align-items:center;border-bottom:1px solid rgba(245,245,241,.08);transition:height .45s var(--dh-ease),background .35s ease,border-color .35s ease,backdrop-filter .35s ease}
.dh-header.is-condensed{height:66px;background:rgba(2,3,3,.78);border-bottom-color:var(--dh-rule);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.dh-header-inner{width:100%;display:flex;align-items:center;padding-inline:var(--dh-gutter)}
.dh-brand{display:block;width:132px;flex:0 0 auto}
.dh-brand img{width:100%;height:auto}
.dh-nav{margin-left:auto;display:flex;align-items:center;gap:clamp(17px,1.8vw,30px);color:#9a9e9c;font:500 12px/1 var(--dh-display)}
.dh-nav-link{transition:color .2s ease}
.dh-nav-link:hover,.dh-nav-link:focus-visible,.dh-nav-link[aria-current="page"]{color:var(--dh-green)!important;-webkit-text-fill-color:var(--dh-green)!important}
.dh-contact-button{display:grid;place-items:center;min-height:42px;padding:0 21px;border:1px solid rgba(245,245,241,.54)!important;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;background:transparent!important;transition:color .2s ease,border-color .2s ease,background .2s ease}
.dh-contact-button:hover,.dh-contact-button:focus-visible,.dh-contact-button[aria-current="page"]{color:var(--dh-paper)!important;border-color:rgba(87,184,122,.66)!important;background:rgba(87,184,122,.08)!important}
.dh-menu-toggle{display:none;width:46px;height:42px;padding:0;border:1px solid rgba(245,245,241,.36)!important;background:rgba(2,3,3,.5)!important;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;cursor:pointer}
.dh-menu-toggle span{display:block;width:18px;height:1px;margin:5px auto;background:currentColor;transition:transform .35s var(--dh-ease),opacity .2s ease}
.dh-menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(3px) rotate(45deg)}
.dh-menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3px) rotate(-45deg)}

.dh-drawer{position:fixed;z-index:120;inset:0;display:grid;grid-template-columns:minmax(0,1fr) min(88vw,480px);background:rgba(0,0,0,.68);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.dh-drawer-backdrop{min-width:0;border:0;background:transparent;cursor:pointer}
.dh-drawer-panel{display:grid;grid-template-rows:auto 1fr auto;min-height:100%;padding:24px clamp(24px,5vw,54px) 32px;background:#050706;border-left:1px solid var(--dh-rule);animation:dh-panel-in .48s var(--dh-ease) both}
.dh-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--dh-rule)}
.dh-drawer-head span{color:var(--dh-muted);font:700 9px/1 var(--dh-mono);letter-spacing:.2em;text-transform:uppercase}
.dh-menu-close{width:42px;height:42px;border:1px solid rgba(245,245,241,.26)!important;background:transparent!important;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;font:300 24px/1 var(--dh-display);cursor:pointer}
.dh-drawer-links{display:grid;align-content:center}
.dh-drawer-links a{display:grid;grid-template-columns:36px 1fr;align-items:center;gap:16px;padding:15px 0;border-bottom:1px solid var(--dh-rule);color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;font:700 clamp(26px,5.5vw,42px)/.95 var(--dh-display);letter-spacing:-.045em;text-transform:uppercase}
.dh-drawer-links small{color:var(--dh-dim);font:600 8px/1 var(--dh-mono);letter-spacing:.12em}
.dh-drawer-foot{display:flex;justify-content:space-between;gap:20px;padding-top:24px;color:var(--dh-dim);font:600 8px/1.6 var(--dh-mono);letter-spacing:.12em;text-transform:uppercase}
body.dh-menu-open{overflow:hidden}
@keyframes dh-panel-in{from{transform:translateX(100%)}to{transform:none}}

.dh-main{position:relative;z-index:2;min-height:100vh}
.dh-page-hero{position:relative;min-height:clamp(560px,72svh,760px);display:flex;align-items:flex-end;padding:148px 0 clamp(76px,9vw,136px);border-bottom:1px solid var(--dh-rule);overflow:hidden}
.dh-page-hero-inner{width:100%}
.dh-page-hero-top{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:clamp(30px,5vw,62px)}
.dh-page-index{color:var(--dh-dim);font:600 9px/1 var(--dh-mono);letter-spacing:.18em;text-transform:uppercase}
.dh-page-title{font-size:var(--dh-page-title);line-height:.72;max-width:1200px}
body[data-page="contact"] .dh-page-title{font-size:clamp(64px,10vw,152px);font-weight:500;letter-spacing:-.045em;line-height:.8}
.dh-page-lead{max-width:680px;margin:clamp(32px,4.2vw,58px) 0 0;color:#c5c8c6;font-size:clamp(15px,1.45vw,21px);font-weight:600;line-height:1.75;letter-spacing:.025em}

.dh-section{position:relative;padding:clamp(86px,10vw,154px) 0;border-bottom:1px solid var(--dh-rule)}
.dh-main>.dh-section:last-child{border-bottom:0}
.dh-section-head{display:grid;grid-template-columns:minmax(0,.75fr) minmax(320px,1.25fr);gap:clamp(42px,8vw,140px);align-items:start;margin-bottom:clamp(42px,6vw,82px)}
.dh-section-title{margin-top:28px;font-size:var(--dh-section-title);line-height:.86}
.dh-section-intro{margin:0;color:#b7bbb8;font-size:clamp(15px,1.25vw,18px);line-height:1.9}

.dh-news-list{border-top:1px solid var(--dh-rule)}
.dh-news-row{display:grid;grid-template-columns:150px minmax(0,1fr);gap:clamp(20px,4vw,64px);align-items:center;padding:clamp(24px,3.6vw,48px) 0;border-bottom:1px solid var(--dh-rule);transition:color .25s ease,background .25s ease}
.dh-news-row time{color:var(--dh-muted);font:600 10px/1 var(--dh-mono);letter-spacing:.12em}
.dh-news-row strong{font-size:clamp(18px,2.1vw,31px);line-height:1.4;font-weight:600;letter-spacing:.01em}
.dh-news-row:hover,.dh-news-row:focus-visible{color:var(--dh-paper);background:rgba(245,245,241,.025)}

.dh-article{display:grid;grid-template-columns:minmax(160px,.45fr) minmax(0,1.55fr);gap:clamp(38px,8vw,132px);padding:clamp(74px,9vw,130px) 0;border-top:1px solid var(--dh-rule);scroll-margin-top:66px}
.dh-article:first-child{border-top:0;padding-top:0}
.dh-article-meta{display:grid;align-content:start;gap:16px;color:var(--dh-muted);font:600 9px/1.7 var(--dh-mono);letter-spacing:.14em;text-transform:uppercase}
.dh-article-body{max-width:var(--dh-reading)}
.dh-article-title{font-size:var(--dh-section-title);line-height:1.02;text-transform:none;letter-spacing:-.045em}
.dh-article-body p{margin:clamp(28px,4vw,48px) 0 0;color:#c9ccca;font-size:clamp(15px,1.2vw,18px);line-height:2}
.dh-article-body a{display:inline-flex;align-items:center;gap:12px;margin-top:32px;padding-bottom:7px;border-bottom:1px solid var(--dh-rule);color:var(--dh-muted);font:700 10px/1 var(--dh-mono);letter-spacing:.14em;text-transform:uppercase;transition:color .2s ease,border-color .2s ease}
.dh-article-body a:hover,.dh-article-body a:focus-visible{color:var(--dh-green);border-color:var(--dh-green)}

.dh-contact-grid{display:grid;grid-template-columns:minmax(260px,.68fr) minmax(0,1.32fr);gap:clamp(56px,10vw,160px);align-items:start}
.dh-contact-aside{position:sticky;top:110px}
.dh-contact-aside h2{margin-top:28px;font-size:var(--dh-section-title);line-height:.88}
.dh-contact-aside p{max-width:430px;margin:30px 0 0;color:#b7bbb8;font-size:15px;line-height:1.9}
.dh-contact-facts{display:grid;margin-top:44px;border-top:1px solid var(--dh-rule)}
.dh-contact-facts span{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid var(--dh-rule);color:var(--dh-dim);font:600 9px/1.5 var(--dh-mono);letter-spacing:.11em;text-transform:uppercase}
.dh-contact-facts b{color:var(--dh-muted);font-weight:600;text-transform:none;letter-spacing:0}
.dh-form{display:grid;gap:0;border-top:1px solid var(--dh-rule)}
.dh-honeypot{position:absolute;left:-9999px;width:0;height:0;opacity:0;pointer-events:none}
.dh-field{display:grid;grid-template-columns:170px 1fr;gap:28px;padding:25px 0;border-bottom:1px solid var(--dh-rule)}
.dh-field label{padding-top:16px;color:var(--dh-muted);font:700 9px/1.5 var(--dh-mono);letter-spacing:.13em;text-transform:uppercase}
.dh-field label span{color:var(--dh-dim);font-weight:500;letter-spacing:.04em;text-transform:none}
.dh-field input,.dh-field textarea,.dh-field select{width:100%;border:1px solid rgba(245,245,241,.15);border-radius:0;background:rgba(245,245,241,.025)!important;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;padding:15px 16px;font-size:16px;line-height:1.65;outline:none;transition:border-color .2s ease,background .2s ease}
.dh-field textarea{min-height:190px;resize:vertical}
.dh-field input::placeholder,.dh-field textarea::placeholder{color:#5f6461}
.dh-field input:hover,.dh-field textarea:hover,.dh-field select:hover{border-color:rgba(245,245,241,.34)}
.dh-field input:focus,.dh-field textarea:focus,.dh-field select:focus{border-color:var(--dh-green);background:rgba(87,184,122,.035)}
.dh-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--dh-muted) 50%),linear-gradient(135deg,var(--dh-muted) 50%,transparent 50%);background-position:calc(100% - 20px) 48%,calc(100% - 14px) 48%;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.dh-form-foot{display:grid;grid-template-columns:1fr auto;gap:34px;align-items:end;padding-top:34px}
.dh-form-note{margin:0;max-width:520px;color:var(--dh-dim);font-size:11px;line-height:1.8}
.dh-submit{position:relative;display:inline-flex;align-items:center;justify-content:space-between;gap:44px;min-width:230px;min-height:64px;padding:0 22px;border:1px solid rgba(245,245,241,.46)!important;border-radius:0;background:transparent!important;color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;font:700 11px/1 var(--dh-mono);letter-spacing:.15em;text-transform:uppercase;cursor:pointer;overflow:hidden}
.dh-submit::before{content:"";position:absolute;inset:0;background:rgba(87,184,122,.10);transform:translateX(-102%);transition:transform .48s var(--dh-ease)}
.dh-submit span,.dh-submit i{position:relative;z-index:1}
.dh-submit i{font:300 24px/1 var(--dh-display);font-style:normal;transition:transform .35s var(--dh-ease),color .2s ease}
.dh-submit:hover::before,.dh-submit:focus-visible::before{transform:none}
.dh-submit:hover i,.dh-submit:focus-visible i{color:var(--dh-green);transform:translate(4px,-4px)}
.dh-submit:disabled{cursor:wait;opacity:.58}
.dh-form-status{min-height:300px;display:grid;align-content:center;gap:24px;border-bottom:1px solid var(--dh-rule)}
.dh-form-status p{margin:0;color:#c9ccca;font-size:clamp(15px,1.2vw,18px);line-height:2}

.dh-footer{position:relative;z-index:2;padding:0 var(--dh-gutter) 34px;background:var(--dh-black)}
.dh-footer-cta{position:relative;display:flex;align-items:flex-end;min-height:clamp(250px,30vw,440px);padding:clamp(34px,5vw,76px) 0;overflow:hidden}
.dh-footer-cta::before{content:"";position:absolute;left:-8%;right:-8%;bottom:-16%;height:72%;background:radial-gradient(ellipse at 50% 100%,rgba(45,151,91,.24),rgba(8,63,38,.09) 46%,transparent 75%);filter:blur(18px);transition:transform .9s var(--dh-ease),opacity .5s ease}
.dh-footer-cta:hover::before,.dh-footer-cta:focus-visible::before{transform:translateY(-7%) scaleX(1.06);opacity:1}
.dh-footer-copy{position:relative;z-index:1;display:inline-flex;align-items:center;gap:clamp(18px,3vw,52px)}
.dh-footer-title{font-size:clamp(64px,12vw,190px);line-height:.72}
.dh-footer-arrow{color:var(--dh-paper);font:300 clamp(36px,5vw,70px)/1 var(--dh-display);transition:color .25s ease,transform .55s var(--dh-ease)}
.dh-footer-cta:hover .dh-footer-arrow,.dh-footer-cta:focus-visible .dh-footer-arrow{color:var(--dh-green);transform:translateX(10px)}
.dh-footer-meta{display:flex;justify-content:space-between;gap:24px;padding-top:26px;color:var(--dh-dim);font:600 8px/1.6 var(--dh-mono);letter-spacing:.12em;text-transform:uppercase}

.dh-reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .85s var(--dh-ease)}
.dh-reveal.is-visible{opacity:1;transform:none}
:focus-visible{outline:2px solid var(--dh-paper);outline-offset:4px}

.boar-consent{color:var(--dh-paper);background:var(--dh-black-soft);border-top-color:var(--dh-rule);font-family:var(--dh-sans)}
.boar-consent__title{color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important}
.boar-consent__text,.boar-consent__detail{color:#b7bbb8}
.boar-consent__summary{color:var(--dh-muted);text-decoration-color:var(--dh-dim)}
.boar-consent__button,.boar-consent-settings{border-radius:0;font-family:var(--dh-sans)}
.boar-consent__button--reject{color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;background:transparent!important;border-color:rgba(245,245,241,.46)!important;box-shadow:none!important}
.boar-consent__button--accept{color:var(--dh-black)!important;-webkit-text-fill-color:var(--dh-black)!important;background:var(--dh-green)!important;border-color:var(--dh-green)!important;box-shadow:none!important}
.boar-consent__button:hover,.boar-consent-settings:hover{border-color:var(--dh-green)}
.boar-consent__button--accept:hover{color:var(--dh-black)!important;background:#6ac78d!important;border-color:#6ac78d!important}
.boar-consent-settings{color:var(--dh-paper)!important;-webkit-text-fill-color:var(--dh-paper)!important;background:var(--dh-black-soft)!important;border-color:var(--dh-rule)!important;box-shadow:none!important}
.boar-consent__button:focus-visible,.boar-consent__summary:focus-visible,.boar-consent-settings:focus-visible{outline-color:var(--dh-paper)}

@media(max-width:900px){
  .dh-nav-link{display:none}
  .dh-nav{gap:10px}
  .dh-menu-toggle{display:block}
  .dh-section-head,.dh-contact-grid{grid-template-columns:1fr}
  .dh-contact-aside{position:relative;top:auto}
  .dh-article{grid-template-columns:120px minmax(0,1fr);gap:42px}
}

@media(max-width:620px){
  :root{--dh-gutter:22px;--dh-page-title:clamp(60px,18vw,84px)}
  body[data-page="contact"] .dh-page-title{font-size:clamp(56px,15.5vw,64px)}
  .dh-header{height:70px}.dh-brand{width:106px}.dh-contact-button{min-height:42px;padding-inline:14px}.dh-nav{font-size:11px}
  .dh-page-hero{min-height:610px;padding-top:126px;padding-bottom:82px}.dh-page-hero-top{align-items:flex-end}.dh-page-lead{max-width:31em}
  .dh-section{padding-block:86px}.dh-section-head{margin-bottom:42px}
  .dh-news-row{grid-template-columns:1fr;gap:14px;padding:22px 0}.dh-news-row time{grid-column:1/-1}.dh-news-row strong{font-size:16px}
  .dh-article{grid-template-columns:1fr;gap:26px;padding-block:72px}.dh-article-meta{grid-template-columns:auto 1fr;align-items:center}.dh-article-title{font-size:36px}.dh-article-body p{font-size:15px}
  .dh-field{grid-template-columns:1fr;gap:10px;padding:21px 0}.dh-field label{padding-top:0}.dh-form-foot{grid-template-columns:1fr}.dh-submit{width:100%}
  .dh-footer{padding-inline:22px}.dh-footer-cta{min-height:260px;padding:28px 0}.dh-footer-copy{gap:12px}.dh-footer-title{font-size:clamp(54px,16vw,72px)}.dh-footer-meta{padding-inline:0}
  .dh-drawer{grid-template-columns:1fr}.dh-drawer-backdrop{display:none}.dh-drawer-panel{border-left:0}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .dh-atmosphere::before,.dh-atmosphere::after,.dh-drawer-panel{animation:none!important}
  .dh-reveal{opacity:1;transform:none;transition:none}
  .dh-footer-cta::before,.dh-submit::before{transition:none}
}

@media print{.boar-consent,.boar-consent-settings{display:none!important}}