@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');
:root{--kaja-primary:#1a3558;--kaja-primary-dark:#122440;--kaja-gold:#c8941a;--kaja-gold-light:#e8b53a;--kaja-bg:#f5f7fa;--kaja-white:#ffffff;--kaja-text:#2d2d2d;--kaja-text-soft:#666666;--kaja-border:#dde2ea;--kaja-radius:8px;--kaja-radius-lg:16px;--kaja-shadow:0 2px 12px rgba(26,53,88,0.10);--kaja-shadow-hover:0 6px 24px rgba(26,53,88,0.18);--kaja-nav-h:68px;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans JP','Hiragino Sans',sans-serif;color:var(--kaja-text);background:var(--kaja-bg);line-height:1.75;}
a{color:var(--kaja-primary);text-decoration:none;transition:color .2s;}
a:hover{color:var(--kaja-gold);}
img{max-width:100%;height:auto;display:block;}
ul{list-style:none;}
.kaja-container{max-width:1160px;margin:0 auto;padding:0 24px;}
.kaja-nav{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--kaja-primary);height:var(--kaja-nav-h);}
.kaja-nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:1160px;margin:0 auto;padding:0 24px;}
.kaja-logo{display:flex;flex-direction:column;}
.kaja-logo-name{font-size:1.1rem;font-weight:700;color:var(--kaja-white);letter-spacing:.04em;}
.kaja-logo-tag{font-size:.7rem;color:var(--kaja-gold-light);letter-spacing:.06em;}
.kaja-nav-links{display:flex;gap:28px;align-items:center;}
.kaja-nav-links a{color:rgba(255,255,255,.88);font-size:.9rem;font-weight:500;transition:color .2s;}
.kaja-nav-links a:hover,.kaja-nav-links a.active{color:var(--kaja-gold-light);}
.kaja-nav-cta{background:var(--kaja-gold);color:var(--kaja-primary)!important;padding:7px 18px;border-radius:4px;font-weight:700!important;}
.kaja-nav-cta:hover{background:var(--kaja-gold-light);color:var(--kaja-primary)!important;}
.kaja-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;}
.kaja-hamburger span{display:block;width:24px;height:2px;background:var(--kaja-white);border-radius:2px;transition:all .3s;}
.kaja-mobile-menu{display:none;position:fixed;top:var(--kaja-nav-h);left:0;right:0;background:var(--kaja-primary-dark);z-index:99;padding:12px 0;}
.kaja-mobile-menu.open{display:block;}
.kaja-mobile-menu a{display:block;color:rgba(255,255,255,.9);padding:12px 24px;font-size:.92rem;border-bottom:1px solid rgba(255,255,255,.08);}
.kaja-mobile-menu a:last-child{border-bottom:none;}
.kaja-hero{position:relative;min-height:560px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:var(--kaja-nav-h);background-image:url('../media/hero-koza-main.jpg');background-size:cover;background-position:center;}
.kaja-hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,53,88,.82) 0%,rgba(26,53,88,.60) 100%);}
.kaja-hero-content{position:relative;z-index:1;text-align:center;color:var(--kaja-white);padding:40px 24px;max-width:760px;}
.kaja-hero-label{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--kaja-gold-light);margin-bottom:14px;}
.kaja-hero-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;line-height:1.4;margin-bottom:18px;}
.kaja-hero-sub{font-size:1rem;color:rgba(255,255,255,.86);margin-bottom:32px;line-height:1.8;}
.kaja-hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.kaja-btn-primary{display:inline-block;background:var(--kaja-gold);color:var(--kaja-primary);padding:13px 30px;border-radius:var(--kaja-radius);font-weight:700;font-size:.93rem;transition:all .2s;}
.kaja-btn-primary:hover{background:var(--kaja-gold-light);color:var(--kaja-primary);transform:translateY(-2px);box-shadow:0 4px 16px rgba(200,148,26,.4);}
.kaja-btn-outline{display:inline-block;border:2px solid rgba(255,255,255,.7);color:var(--kaja-white);padding:11px 26px;border-radius:var(--kaja-radius);font-weight:600;font-size:.93rem;transition:all .2s;}
.kaja-btn-outline:hover{border-color:var(--kaja-white);background:rgba(255,255,255,.1);color:var(--kaja-white);}
.kaja-section{padding:72px 0;}
.kaja-section-alt{background:var(--kaja-white);}
.kaja-section-title{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;color:var(--kaja-primary);text-align:center;margin-bottom:10px;}
.kaja-section-sub{text-align:center;color:var(--kaja-text-soft);font-size:.93rem;margin-bottom:44px;}
.kaja-section-line{display:block;width:48px;height:3px;background:var(--kaja-gold);margin:12px auto 0;border-radius:2px;}
.kaja-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px;}
.kaja-feature-card{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);padding:32px 26px;box-shadow:var(--kaja-shadow);border:1px solid var(--kaja-border);transition:box-shadow .2s,transform .2s;}
.kaja-feature-card:hover{box-shadow:var(--kaja-shadow-hover);transform:translateY(-3px);}
.kaja-feature-icon{width:50px;height:50px;background:rgba(26,53,88,.08);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;}
.kaja-feature-icon i{color:var(--kaja-primary);font-size:1.3rem;}
.kaja-feature-title{font-size:1rem;font-weight:700;color:var(--kaja-primary);margin-bottom:10px;}
.kaja-feature-text{font-size:.88rem;color:var(--kaja-text-soft);line-height:1.8;}
.kaja-courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px;}
.kaja-course-card{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);overflow:hidden;box-shadow:var(--kaja-shadow);border:1px solid var(--kaja-border);transition:all .2s;}
.kaja-course-card:hover{box-shadow:var(--kaja-shadow-hover);transform:translateY(-4px);}
.kaja-course-img{width:100%;height:200px;object-fit:cover;}
.kaja-course-body{padding:22px;}
.kaja-course-level{display:inline-block;font-size:.73rem;font-weight:700;letter-spacing:.08em;padding:3px 12px;border-radius:20px;margin-bottom:10px;}
.kaja-level-beginner{background:rgba(46,125,50,.1);color:#2e7d32;}
.kaja-level-intermediate{background:rgba(200,100,0,.1);color:#c06410;}
.kaja-level-advanced{background:rgba(26,53,88,.1);color:var(--kaja-primary);}
.kaja-course-title{font-size:1rem;font-weight:700;color:var(--kaja-text);margin-bottom:8px;line-height:1.5;}
.kaja-course-excerpt{font-size:.87rem;color:var(--kaja-text-soft);line-height:1.75;margin-bottom:14px;}
.kaja-course-link{font-size:.87rem;font-weight:700;color:var(--kaja-primary);display:inline-flex;align-items:center;gap:5px;}
.kaja-course-link:hover{color:var(--kaja-gold);}
.kaja-page-hero{background:var(--kaja-primary);padding:56px 0 42px;margin-top:var(--kaja-nav-h);}
.kaja-page-hero-inner{max-width:760px;}
.kaja-breadcrumb{font-size:.8rem;color:rgba(255,255,255,.58);margin-bottom:10px;}
.kaja-breadcrumb a{color:rgba(255,255,255,.68);}
.kaja-breadcrumb span{color:rgba(255,255,255,.9);}
.kaja-page-title{font-size:clamp(1.4rem,3.5vw,2.2rem);font-weight:700;color:var(--kaja-white);line-height:1.45;margin-bottom:14px;}
.kaja-page-meta{font-size:.8rem;color:rgba(255,255,255,.62);display:flex;gap:18px;flex-wrap:wrap;}
.kaja-article-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;max-width:1160px;margin:0 auto;padding:52px 24px;align-items:start;}
.kaja-article-body{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);padding:36px;box-shadow:var(--kaja-shadow);}
.kaja-article-body h2{font-size:1.25rem;font-weight:700;color:var(--kaja-primary);margin:28px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--kaja-border);}
.kaja-article-body h3{font-size:1rem;font-weight:700;color:var(--kaja-text);margin:20px 0 8px;}
.kaja-article-body p{font-size:.93rem;line-height:1.85;margin-bottom:14px;color:var(--kaja-text);}
.kaja-article-body ul,.kaja-article-body ol{margin-bottom:14px;padding-left:20px;}
.kaja-article-body li{font-size:.93rem;line-height:1.8;margin-bottom:6px;color:var(--kaja-text);}
.kaja-article-body ul li{list-style:disc;}
.kaja-article-body ol li{list-style:decimal;}
.kaja-article-img{border-radius:var(--kaja-radius);margin:20px 0;width:100%;}
.kaja-article-note{background:rgba(26,53,88,.05);border-left:4px solid var(--kaja-primary);padding:14px 18px;border-radius:0 var(--kaja-radius) var(--kaja-radius) 0;margin:20px 0;font-size:.88rem;line-height:1.75;}
.kaja-sidebar{position:sticky;top:calc(var(--kaja-nav-h) + 20px);}
.kaja-sidebar-widget{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);padding:22px;box-shadow:var(--kaja-shadow);margin-bottom:22px;}
.kaja-sidebar-widget-title{font-size:.82rem;font-weight:700;color:var(--kaja-primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--kaja-border);}
.kaja-related-list li{padding:8px 0;border-bottom:1px solid var(--kaja-border);}
.kaja-related-list li:last-child{border-bottom:none;}
.kaja-related-list a{font-size:.87rem;color:var(--kaja-text);line-height:1.5;}
.kaja-related-list a:hover{color:var(--kaja-primary);}
.kaja-contact-section{background:#edf1f7;padding:60px 0;}
.kaja-contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.kaja-contact-info-title{font-size:1.2rem;font-weight:700;color:var(--kaja-primary);margin-bottom:22px;}
.kaja-contact-info-list{display:flex;flex-direction:column;gap:18px;}
.kaja-contact-info-item{display:flex;align-items:flex-start;gap:14px;}
.kaja-contact-icon{width:42px;height:42px;min-width:42px;background:var(--kaja-primary);border-radius:10px;display:flex;align-items:center;justify-content:center;}
.kaja-contact-icon i{color:var(--kaja-white);font-size:.95rem;}
.kaja-contact-info-label{font-size:.75rem;font-weight:700;color:var(--kaja-text-soft);text-transform:uppercase;letter-spacing:.06em;margin-bottom:3px;}
.kaja-contact-info-value{font-size:.92rem;color:var(--kaja-text);line-height:1.5;}
.kaja-form-card{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);padding:32px;box-shadow:var(--kaja-shadow-hover);}
.kaja-form-title{font-size:1.05rem;font-weight:700;color:var(--kaja-primary);margin-bottom:22px;}
.kaja-form-group{margin-bottom:16px;}
.kaja-form-label{display:block;font-size:.83rem;font-weight:600;color:var(--kaja-text);margin-bottom:5px;}
.kaja-form-input,.kaja-form-textarea{width:100%;padding:9px 13px;border:1.5px solid var(--kaja-border);border-radius:var(--kaja-radius);font-family:inherit;font-size:.9rem;color:var(--kaja-text);background:var(--kaja-bg);transition:border-color .2s;outline:none;}
.kaja-form-input:focus,.kaja-form-textarea:focus{border-color:var(--kaja-primary);background:var(--kaja-white);}
.kaja-form-textarea{min-height:110px;resize:vertical;}
.kaja-form-privacy{font-size:.8rem;color:var(--kaja-text-soft);margin-bottom:14px;}
.kaja-form-privacy a{color:var(--kaja-primary);text-decoration:underline;}
.kaja-form-btn{display:inline-block;background:var(--kaja-primary);color:var(--kaja-white);padding:11px 28px;border-radius:var(--kaja-radius);font-size:.92rem;font-weight:700;border:none;cursor:pointer;transition:background .2s;}
.kaja-form-btn:hover{background:var(--kaja-primary-dark);}
.kaja-map-wrap{position:relative;}
.kaja-map-container{width:100%;height:380px;}
.kaja-map-container iframe{width:100%;height:100%;border:none;display:block;}
.kaja-map-link{text-align:center;padding:12px;background:var(--kaja-white);border-top:1px solid var(--kaja-border);font-size:.85rem;}
.kaja-map-link a{color:var(--kaja-primary);font-weight:600;}
.kaja-list-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:26px;}
.kaja-list-card{background:var(--kaja-white);border-radius:var(--kaja-radius-lg);overflow:hidden;box-shadow:var(--kaja-shadow);border:1px solid var(--kaja-border);transition:all .2s;display:flex;flex-direction:column;}
.kaja-list-card:hover{box-shadow:var(--kaja-shadow-hover);transform:translateY(-3px);}
.kaja-list-card-img{width:100%;height:200px;object-fit:cover;}
.kaja-list-card-body{padding:22px;flex:1;display:flex;flex-direction:column;}
.kaja-list-card-title{font-size:.98rem;font-weight:700;color:var(--kaja-text);margin-bottom:8px;line-height:1.5;}
.kaja-list-card-excerpt{font-size:.87rem;color:var(--kaja-text-soft);line-height:1.75;margin-bottom:auto;padding-bottom:14px;}
.kaja-list-card-link{font-size:.87rem;font-weight:700;color:var(--kaja-primary);display:inline-flex;align-items:center;gap:5px;}
.kaja-list-card-link:hover{color:var(--kaja-gold);}
.kaja-about-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.kaja-about-img{border-radius:var(--kaja-radius-lg);box-shadow:var(--kaja-shadow-hover);width:100%;}
.kaja-about-text h2{font-size:1.55rem;font-weight:700;color:var(--kaja-primary);margin-bottom:18px;}
.kaja-about-text p{font-size:.93rem;color:var(--kaja-text);line-height:1.85;margin-bottom:14px;}
.kaja-values{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;}
.kaja-value-item{text-align:center;padding:26px 18px;background:var(--kaja-white);border-radius:var(--kaja-radius-lg);box-shadow:var(--kaja-shadow);}
.kaja-value-item i{font-size:1.8rem;color:var(--kaja-primary);margin-bottom:12px;}
.kaja-value-title{font-size:.92rem;font-weight:700;color:var(--kaja-primary);margin-bottom:7px;}
.kaja-value-desc{font-size:.83rem;color:var(--kaja-text-soft);line-height:1.7;}
.kaja-legal-body{max-width:820px;margin:0 auto;background:var(--kaja-white);border-radius:var(--kaja-radius-lg);padding:44px;box-shadow:var(--kaja-shadow);}
.kaja-legal-body h2{font-size:1.15rem;font-weight:700;color:var(--kaja-primary);margin:28px 0 10px;padding-bottom:7px;border-bottom:1px solid var(--kaja-border);}
.kaja-legal-body p{font-size:.9rem;line-height:1.85;margin-bottom:12px;color:var(--kaja-text);}
.kaja-legal-body ul{padding-left:18px;margin-bottom:12px;}
.kaja-legal-body li{font-size:.9rem;line-height:1.8;margin-bottom:5px;list-style:disc;color:var(--kaja-text);}
.kaja-cta-section{background:var(--kaja-primary);padding:60px 0;text-align:center;}
.kaja-cta-title{font-size:clamp(1.3rem,3vw,1.9rem);font-weight:700;color:var(--kaja-white);margin-bottom:14px;}
.kaja-cta-sub{color:rgba(255,255,255,.8);font-size:.97rem;margin-bottom:28px;}
.kaja-footer{background:#0f1f38;color:rgba(255,255,255,.7);padding:52px 0 22px;}
.kaja-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;margin-bottom:36px;}
.kaja-footer-brand-name{font-size:1rem;font-weight:700;color:var(--kaja-white);margin-bottom:8px;}
.kaja-footer-brand-desc{font-size:.83rem;line-height:1.75;color:rgba(255,255,255,.58);}
.kaja-footer-heading{font-size:.79rem;font-weight:700;color:var(--kaja-white);text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px;}
.kaja-footer-links{display:flex;flex-direction:column;gap:9px;}
.kaja-footer-links a{font-size:.83rem;color:rgba(255,255,255,.58);transition:color .2s;}
.kaja-footer-links a:hover{color:var(--kaja-gold-light);}
.kaja-footer-divider{border:none;border-top:1px solid rgba(255,255,255,.1);margin-bottom:18px;}
.kaja-footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;}
.kaja-footer-copy{font-size:.78rem;color:rgba(255,255,255,.42);}
.kaja-footer-disclaimer{font-size:.73rem;color:rgba(255,255,255,.32);max-width:540px;line-height:1.6;}
.kaja-cookie{position:fixed;bottom:0;left:0;right:0;background:rgba(15,31,56,.97);color:rgba(255,255,255,.88);padding:14px 22px;z-index:9999;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.83rem;line-height:1.5;}
.kaja-cookie-text a{color:var(--kaja-gold-light);text-decoration:underline;}
.kaja-cookie-btns{display:flex;gap:9px;flex-shrink:0;}
.kaja-cookie-accept{background:var(--kaja-gold);color:var(--kaja-primary);border:none;padding:7px 18px;border-radius:4px;font-size:.83rem;font-weight:700;cursor:pointer;}
.kaja-cookie-decline{background:transparent;color:rgba(255,255,255,.68);border:1px solid rgba(255,255,255,.28);padding:7px 14px;border-radius:4px;font-size:.83rem;cursor:pointer;}
.kaja-cookie.hidden{display:none;}
.kaja-form-success{display:none;background:rgba(46,125,50,.08);border:1.5px solid #2e7d32;border-radius:var(--kaja-radius);padding:14px 18px;color:#1b5e20;font-size:.88rem;margin-top:10px;}
.kaja-form-success.show{display:block;}
@media(max-width:900px){.kaja-article-layout{grid-template-columns:1fr;}.kaja-sidebar{position:static;}.kaja-about-layout{grid-template-columns:1fr;}.kaja-footer-grid{grid-template-columns:1fr 1fr;}.kaja-contact-inner{grid-template-columns:1fr;}}
@media(max-width:640px){.kaja-nav-links{display:none;}.kaja-hamburger{display:flex;}.kaja-hero{min-height:460px;}.kaja-hero-btns{flex-direction:column;align-items:center;}.kaja-footer-grid{grid-template-columns:1fr;}.kaja-map-container{height:260px;}}