:root{
  --gbh-primary:#c71f2d;
  --gbh-secondary:#0c2747;
  --gbh-accent:#caa45d;
  --gbh-text:#14243a;
  --gbh-muted:#5d6a79;
  --gbh-light:#f4f7fb;
  --gbh-border:#dce3eb;
  --gbh-white:#fff;
  --gbh-shadow:0 14px 38px rgba(12,39,71,.10);
  --gbh-radius:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--gbh-text);background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.container.narrow,.narrow{width:min(800px,calc(100% - 40px));margin-inline:auto}
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.screen-reader-text:focus{clip:auto!important;width:auto;height:auto;background:#fff;color:#111;padding:12px;z-index:99999}
.skip-link{left:12px;top:12px}
.site-main{min-height:45vh}

/* Üst alan */
.site-header{position:relative;z-index:100}
.topbar{font-size:12px}
.topbar-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.topbar-contact,.topbar-social{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-message{font-weight:700}
.main-header{transition:box-shadow .2s,background .2s}
.site-header.is-scrolled .main-header{position:fixed;top:0;left:0;right:0;z-index:1000}
.header-inner{min-height:78px;display:flex;align-items:center;gap:24px}
.site-branding{flex:0 0 auto}
.custom-logo{width:auto;max-height:60px}
.text-logo{display:flex;align-items:center;gap:12px}
.logo-mark{position:relative;display:grid;place-items:center;width:54px;height:54px;flex:0 0 54px;overflow:hidden}
.logo-mark i{position:absolute;top:4px;font-style:normal;font-size:10px;line-height:1}
.logo-mark b{font-size:15px;letter-spacing:.03em}
.text-logo strong,.text-logo small{display:block}
.text-logo strong{font-size:19px;line-height:1.05}
.text-logo small{margin-top:3px;font-size:10px;text-transform:uppercase;letter-spacing:.16em}
.primary-navigation{margin-left:auto}
.primary-navigation ul{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.primary-navigation li{position:relative}
.primary-navigation a{display:block;padding:12px 10px;font-size:13px;font-weight:750;white-space:nowrap;transition:.2s}
.primary-navigation .sub-menu{position:absolute;left:0;top:100%;z-index:100;display:none;min-width:235px;flex-direction:column;align-items:stretch;padding:9px;border:1px solid var(--gbh-border);background:#fff;box-shadow:var(--gbh-shadow)}
.primary-navigation li:hover>.sub-menu,.primary-navigation li:focus-within>.sub-menu{display:flex}
.primary-navigation .sub-menu a{padding:10px 12px}
.header-actions{display:flex;align-items:center;gap:9px}
.header-volunteer,.header-cta,.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid transparent;font-weight:800;line-height:1;cursor:pointer;transition:transform .2s,background .2s,border-color .2s,color .2s,box-shadow .2s}
.header-cta,.button-primary,.button-accent{color:#fff;background:var(--gbh-primary)}
.header-volunteer,.button-light{background:#fff;border-color:var(--gbh-border)}
.header-cta:hover,.button-primary:hover,.button-accent:hover,.button-light:hover,.header-volunteer:hover{transform:translateY(-1px)}
.menu-toggle{display:none;margin-left:auto;padding:8px;border:0;background:transparent}
.menu-toggle span:not(.screen-reader-text){display:block;width:25px;height:2px;margin:5px;background:currentColor}

/* Manşet */
.hero-slider{position:relative;overflow:hidden;padding-bottom:58px}
.hero-slides{position:relative;min-height:590px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;pointer-events:none;overflow:hidden;transition:opacity .5s,visibility .5s}
.hero-slide.is-active{position:relative;opacity:1;visibility:visible;pointer-events:auto}
.hero-media{position:absolute;z-index:0;inset:0 0 0 48%;background-image:var(--gbh-hero-image);background-repeat:no-repeat;background-size:cover;background-position:center}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);align-items:center;min-height:590px;gap:48px}
.hero-copy{position:relative;z-index:4;max-width:680px;padding:70px 0 115px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.16em}
.hero-copy h1{max-width:700px;margin:16px 0 20px;font-size:clamp(48px,6vw,72px);line-height:1.02;letter-spacing:-.035em}
.hero-copy p{max-width:620px;margin:0;font-size:18px;line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-emblem{position:relative;z-index:3;display:grid;place-items:center;justify-self:end;width:310px;aspect-ratio:1;border-radius:50%;text-align:center}
.hero-emblem strong{display:block;font-size:62px;line-height:1;letter-spacing:.05em}
.hero-emblem small{margin-top:8px;font-size:16px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;line-height:1.4}
.hero-controls{position:absolute;z-index:6;left:50%;bottom:10px;transform:translateX(-50%);display:flex;align-items:center;gap:10px}
.hero-arrow{display:grid;place-items:center;width:35px;height:35px;border:1px solid var(--gbh-border);border-radius:50%;background:#fff;cursor:pointer}
.hero-dots{display:flex;align-items:center;gap:7px}
.hero-dot{width:8px;height:8px;padding:0;border:0;border-radius:50%;background:#bbb;cursor:pointer;transition:.2s}
.hero-dot.is-active{width:26px;border-radius:999px;background:var(--gbh-primary)}

/* Hızlı bağlantılar */
.quick-links-section{position:relative;z-index:10;margin-top:-12px}
.quick-links-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.quick-link-card{position:relative;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;min-width:0;padding:22px 20px;background:#fff;transition:.2s}
.quick-link-card .quick-icon{display:grid;place-items:center;width:43px;height:43px;flex:0 0 43px}
.quick-link-card svg{width:23px;height:23px;fill:currentColor}
.quick-number{position:absolute;top:10px;right:12px;font-size:10px;font-weight:900;opacity:.65}
.quick-link-card h2{margin:0 0 5px;font-size:15px;line-height:1.15}
.quick-link-card p{margin:0;font-size:12px;line-height:1.45;color:var(--gbh-muted)}
.quick-link-card>b{font-size:15px}

/* Ortak içerik */
.section{padding:76px 0}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
.section-heading h2{margin:5px 0 0;font-size:clamp(34px,4vw,48px);line-height:1.05;letter-spacing:-.025em}
.section-heading>a{font-size:13px;font-weight:850;color:var(--gbh-primary)}
.section-heading.compact{margin-bottom:20px}
.section-heading.compact h2{font-size:34px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.content-card{overflow:hidden;background:#fff;border:1px solid var(--gbh-border);transition:.25s}
.card-image{display:block;overflow:hidden;background:var(--gbh-secondary)}
.card-image img,.card-placeholder{width:100%;aspect-ratio:16/8.5;object-fit:cover;transition:transform .4s}
.content-card:hover .card-image img{transform:scale(1.035)}
.card-placeholder{display:grid;place-items:center;color:#fff;font-size:30px;font-weight:900}
.card-content{padding:19px 19px 21px}
.card-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:11px;color:var(--gbh-muted)}
.content-card h3{margin:12px 0 9px;font-size:21px;line-height:1.18}
.content-card p{margin:0 0 15px;color:var(--gbh-muted);font-size:14px;line-height:1.6}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--gbh-primary);font-size:13px;font-weight:850}
.empty-state{grid-column:1/-1;padding:35px;border:1px dashed var(--gbh-border);text-align:center}

/* Katılım bandı */
.join-band{position:relative}
.join-band-inner{display:grid;grid-template-columns:auto minmax(0,1.2fr) minmax(180px,.65fr) auto;align-items:center;gap:28px;padding:36px 0}
.join-symbol{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;font-size:28px}
.join-band h2{margin:7px 0 0;font-size:clamp(31px,3.4vw,44px);line-height:1.04}
.join-band p{margin:0;font-size:14px;line-height:1.55}
.join-buttons{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

/* Projeler */
.project-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}
.project-card{position:relative;display:flex;min-width:0;min-height:250px;flex-direction:column;overflow:hidden;padding:24px;background:#fff;border:1px solid var(--gbh-border);transition:.25s}
.project-thumb{display:none;margin:-24px -24px 18px;overflow:hidden}
.project-thumb img{width:100%;aspect-ratio:16/6.5;object-fit:cover;transition:transform .4s}
.project-card:hover .project-thumb img{transform:scale(1.04)}
.project-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.project-number{display:grid;place-items:center;min-width:37px;height:37px;padding:0 8px;font-size:12px;font-weight:900}
.project-icon{display:grid;place-items:center;width:43px;height:43px;color:var(--gbh-primary)}
.project-icon svg{width:28px;height:28px;fill:currentColor}
.project-card h3{margin:20px 0 10px;font-size:20px;line-height:1.17}
.project-card p{margin:0 0 18px;color:var(--gbh-muted);font-size:13px;line-height:1.55}
.project-card>b{margin-top:auto;color:var(--gbh-primary);font-size:12px}

/* Genel Başkan */
.chairman-grid{display:grid;grid-template-columns:minmax(320px,.95fr) minmax(0,1.05fr);align-items:stretch;gap:0;overflow:hidden}
.chairman-photo{position:relative;min-height:350px;overflow:hidden}
.chairman-photo img,.chairman-photo .image-placeholder{width:100%;height:100%;min-height:350px;object-fit:cover}
.image-placeholder{display:grid;place-items:center;background:linear-gradient(145deg,var(--gbh-secondary),var(--gbh-primary));color:#fff;font-weight:800}
.chairman-copy{position:relative;display:flex;flex-direction:column;justify-content:center;padding:45px 52px;overflow:hidden}
.chairman-copy h2{margin:8px 0 3px;font-size:clamp(38px,4vw,53px);line-height:1}
.chairman-copy h3{margin:0 0 17px;font-size:15px;color:var(--gbh-primary)}
.chairman-copy p{max-width:650px;margin:0 0 18px;color:var(--gbh-muted);font-size:15px;line-height:1.7}
.chairman-signature{position:absolute;right:36px;bottom:25px;max-width:45%;font-family:"Segoe Script","Brush Script MT",cursive;font-size:28px;font-style:italic;opacity:.45;transform:rotate(-4deg)}

/* Video */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.video-card{display:block;overflow:hidden;transition:.25s}
.video-thumb{position:relative;overflow:hidden;background:var(--gbh-secondary)}
.video-thumb img,.video-placeholder{width:100%;aspect-ratio:16/8.5;object-fit:cover}
.video-placeholder{display:grid;place-items:center;color:#fff;font-size:42px}
.play-button{position:absolute;left:50%;top:50%;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;transform:translate(-50%,-50%);background:#fff;color:var(--gbh-primary);box-shadow:0 8px 25px rgba(0,0,0,.25)}
.video-card time{display:block;margin:14px 0 5px;font-size:11px;color:var(--gbh-muted)}
.video-card h3{margin:0;font-size:17px;line-height:1.25}

/* Duyuru / etkinlik */
.agenda-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.notice-list{display:grid;gap:10px}
.notice-list a{display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:15px;padding:17px;border:1px solid var(--gbh-border);background:#fff}
.notice-list time{font-size:12px;font-weight:850;color:var(--gbh-primary)}
.event-panel h2{margin:7px 0 20px;font-size:34px}
.event-item{display:grid;grid-template-columns:64px 1fr;align-items:center;gap:15px;padding:15px;border:1px solid var(--gbh-border);background:#fff}
.event-item+.event-item{margin-top:10px}
.event-date{display:grid;place-items:center;min-height:50px;background:var(--gbh-light);font-weight:900;color:var(--gbh-primary)}
.event-item strong,.event-item small{display:block}.event-item small{margin-top:4px;color:var(--gbh-muted)}
.membership-cta{padding:52px 0;background:var(--gbh-secondary);color:#fff}
.membership-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
.membership-inner h2{margin:7px 0;font-size:40px;color:#fff}.membership-inner p{margin:0}

/* İç sayfalar */
.page-header,.archive-header{padding:64px 0;background:var(--gbh-light)}
.page-header h1,.archive-header h1{margin:0;font-size:clamp(40px,5vw,62px)}
.archive-layout,.content-layout,.single-layout{padding:60px 0}
.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.single-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:42px}
.entry-card,.sidebar-widget{padding:28px;border:1px solid var(--gbh-border);background:#fff}
.entry-card h1{font-size:clamp(36px,5vw,58px);line-height:1.05}
.entry-content{font-size:17px;line-height:1.8}.entry-content>*:first-child{margin-top:0}
.entry-thumbnail{margin:0 0 28px}.entry-thumbnail img{width:100%}
.sidebar-widget+.sidebar-widget{margin-top:18px}.sidebar-widget ul{margin:0;padding-left:18px}
.people-grid,.organization-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:30px 0}
.person-card,.organization-card{overflow:hidden;border:1px solid var(--gbh-border);background:#fff}
.person-photo img,.person-placeholder{width:100%;aspect-ratio:4/4.4;object-fit:cover}.person-placeholder{display:grid;place-items:center;background:var(--gbh-secondary);color:#fff;font-size:60px;font-weight:900}
.person-card>div,.organization-card{padding:22px}.person-card h3,.organization-card h3{margin:0 0 8px}.person-card p{color:var(--gbh-primary);font-weight:700}
.organization-tools{display:grid;gap:8px;max-width:520px;margin:30px 0}.organization-tools label{font-weight:800}
.organization-tools input,.gbh-form input,.gbh-form select,.gbh-form textarea{width:100%;padding:13px 15px;border:1px solid var(--gbh-border);background:#fff;color:inherit}
.gbh-form{display:grid;gap:16px}.gbh-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.gbh-form label{font-weight:700}.gbh-form textarea{min-height:140px}
.gbh-form-notice{padding:14px 16px;background:#e8f6ed;color:#1d6b39}.gbh-form-error{background:#fff0f0;color:#9c2828}
.nav-links{display:flex;justify-content:center;gap:7px;margin-top:36px}.page-numbers{padding:9px 13px;border:1px solid var(--gbh-border)}.page-numbers.current{background:var(--gbh-primary);color:#fff}
.page-content-wide{padding:65px 0;font-size:17px;line-height:1.8}
.error-page{text-align:center;padding:110px 0}.error-code{display:block;font-size:110px;font-weight:900;color:var(--gbh-primary);line-height:1}

/* Alt alan */
.site-footer{color:#c8d2db}
.footer-grid{display:grid;grid-template-columns:1.2fr .75fr .75fr 1fr;gap:45px;padding:66px 0}
.footer-logo{display:grid;place-items:center;width:58px;height:58px;margin-bottom:16px;color:#fff;font-weight:900}
.site-footer h2,.site-footer h3{color:#fff}.site-footer h2{font-size:20px}.site-footer h3{font-size:14px;text-transform:uppercase;letter-spacing:.05em}
.site-footer p{font-size:13px;line-height:1.65}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li+li{margin-top:8px}.site-footer a{font-size:13px}
.footer-social{display:flex;gap:13px;flex-wrap:wrap;margin-top:18px}.contact-list li{display:grid;gap:3px}.contact-list strong{font-size:11px;color:#fff;text-transform:uppercase}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}.footer-bottom .container{display:flex;justify-content:space-between;gap:20px;padding:18px 0;font-size:11px}

@media(max-width:1180px){
  .primary-navigation a{padding-inline:7px;font-size:12px}.header-actions{display:none}
  .quick-links-grid{grid-template-columns:repeat(2,1fr)}
  .project-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:1020px){
  .primary-navigation{position:fixed;inset:112px 0 auto 0;display:none;padding:18px;background:#fff;box-shadow:var(--gbh-shadow)}
  .primary-navigation.is-open{display:block}.primary-navigation ul{align-items:stretch;flex-direction:column}.primary-navigation .sub-menu{position:static;display:flex;border:0;box-shadow:none;padding-left:18px}
  .menu-toggle{display:block}.hero-inner{grid-template-columns:1fr}.hero-media{inset:0;opacity:.26}.hero-emblem{display:none}.hero-copy{padding:70px 0 120px}
  .card-grid,.video-grid,.people-grid,.organization-grid{grid-template-columns:repeat(2,1fr)}
  .join-band-inner{grid-template-columns:auto 1fr auto}.join-band p{display:none}
  .chairman-grid{grid-template-columns:1fr}.chairman-photo{min-height:420px}.chairman-copy{padding:42px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}
}
@media(max-width:700px){
  .container{width:min(100% - 26px,1180px)}.topbar-message,.topbar-social{display:none}.topbar-inner{justify-content:center}.header-inner{min-height:72px}
  .logo-mark{width:47px;height:47px;flex-basis:47px}.text-logo strong{font-size:16px}.primary-navigation{inset:106px 0 auto 0}
  .hero-slides,.hero-inner{min-height:545px}.hero-copy{padding:58px 0 105px}.hero-copy h1{font-size:41px}.hero-copy p{font-size:16px}.hero-slider{padding-bottom:56px}.hero-controls{bottom:9px}
  .quick-links-section{margin-top:0}.quick-links-grid,.card-grid,.project-grid,.video-grid,.people-grid,.organization-grid,.footer-grid{grid-template-columns:1fr}
  .section{padding:58px 0}.section-heading{align-items:flex-start;flex-direction:column}.section-heading h2{font-size:36px}
  .join-band-inner{grid-template-columns:1fr;padding:30px 0}.join-symbol{display:none}.join-buttons{width:100%}.join-buttons .button{flex:1}.join-band h2{font-size:33px}
  .chairman-photo{min-height:300px}.chairman-copy{padding:30px 24px}.chairman-signature{position:static;margin-top:20px;max-width:none}
  .agenda-grid,.single-layout{grid-template-columns:1fr}.membership-inner,.footer-bottom .container{align-items:flex-start;flex-direction:column}.gbh-form-row{grid-template-columns:1fr}
}