:root {
  --navy-950:#050e1a;
  --navy-900:#091524;
  --navy-800:#0d1f3c;
  --blue-700:#1d4ed8;
  --amber-500:#f59e0b;
  --amber-400:#fbbf24;
  --bg:#f0f4f9;
  --surface:#fff;
  --border:#e2e8f0;
  --text:#0f172a;
  --muted:#475569;
  --shadow:0 14px 34px rgba(15,23,42,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.gk-page{margin:0;background:var(--bg);color:var(--text);font-family:'Interstate TR','Segoe UI',Arial,sans-serif;line-height:1.55}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
.gk-ticker{background:var(--navy-800);color:#fff;overflow:hidden;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.08)}
.gk-ticker-track{display:inline-flex;gap:32px;padding:8px 16px;font-size:14px;font-weight:600;animation:gkTicker 42s linear infinite}
.gk-ticker-track span:before{content:"◆  ";color:var(--amber-400)}
@keyframes gkTicker{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.gk-header{position:sticky;top:0;z-index:40;background:var(--navy-800);border-bottom:3px solid var(--amber-500);box-shadow:0 10px 18px rgba(0,0,0,.18)}
.gk-header-inner{max-width:1280px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.gk-logo{display:flex;align-items:center;gap:22px;min-width:0;color:#fff}
.gk-logo-block{display:flex;align-items:center;color:#fff;text-decoration:none}
.gk-logo-block img{display:block;width:auto;object-fit:contain}
.gk-logo-tkd img{height:62px;max-width:230px}
.gk-logo-branch img{height:60px;max-width:310px}
.gk-logo-sep{width:1px;height:58px;background:rgba(255,255,255,.32)}
.gk-nav{display:flex;align-items:center;justify-content:flex-end;gap:2px;flex-wrap:wrap}
.gk-nav a{color:rgba(255,255,255,.82);padding:8px 10px;border-radius:8px;font-size:13px;font-weight:600;white-space:nowrap}
.gk-nav a:hover,.gk-nav a:focus{color:#fff;background:rgba(255,255,255,.1)}
.gk-nav .gk-nav-cta{background:var(--amber-500);color:var(--navy-900);border-radius:999px;padding:8px 16px}
.gk-menu-btn{display:none;border:0;background:transparent;color:#fff;font-size:26px}
.gk-main{min-height:620px}
.gk-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#050e1a 0%,#0d1f3c 52%,#1d4ed8 100%);color:#fff}
.gk-hero:before{content:"";position:absolute;inset:0;z-index:0;background-image:radial-gradient(circle,rgba(255,255,255,.06) 1px,transparent 1px);background-size:30px 30px}
.gk-hero:after{content:"";position:absolute;inset:0;z-index:0;background-image:linear-gradient(90deg,rgba(5,14,26,.70) 0%,rgba(13,31,60,.74) 46%,rgba(29,78,216,.86) 100%),url("../../images/girisimsel-angiography-hero.png");background-position:center,-120px center;background-size:cover,72% auto;background-repeat:no-repeat;opacity:.68}
.gk-hero-inner{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:72px 24px 132px;display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:42px;align-items:center}
.gk-badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:22px;padding:7px 14px;border:1px solid rgba(245,158,11,.38);border-radius:999px;background:rgba(245,158,11,.14);color:var(--amber-400);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.gk-badge:before{content:"";width:6px;height:6px;background:var(--amber-400);border-radius:50%}
.gk-hero h1{max-width:760px;margin:0 0 18px;color:#fff;font-size:clamp(34px,4.5vw,58px);font-weight:900;line-height:1.12}
.gk-hero h1 span{color:var(--amber-400)}
.gk-hero p{max-width:650px;margin:0;color:rgba(255,255,255,.72);font-size:17px;line-height:1.75}
.gk-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.gk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 22px;border-radius:8px;font-weight:800}
.gk-btn-primary{background:var(--amber-500);color:var(--navy-900)}
.gk-btn-outline{border:2px solid rgba(255,255,255,.35);color:#fff}
.gk-stats{display:flex;gap:0;margin-top:52px;flex-wrap:wrap}
.gk-stat{min-width:0;padding-right:0;margin-right:0;border-right:0;display:flex;align-items:baseline;gap:18px}
.gk-stat strong{display:block;color:#fff;font-size:38px;font-weight:900;line-height:1}
.gk-stat span{display:block;color:rgba(255,255,255,.58);font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.gk-month-panel{position:relative;z-index:1;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);border-radius:16px;box-shadow:0 22px 48px rgba(0,0,0,.24);overflow:hidden;backdrop-filter:blur(12px)}
.gk-month-head{display:none}
.gk-month-list{display:flex;flex-direction:column;gap:10px;padding:14px}
.gk-month-item{display:block;padding:14px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#fff}
.gk-month-item:hover{background:rgba(255,255,255,.16);color:#fff}
.gk-month-main{display:block;font-size:14px;font-weight:900}
.gk-month-sub{display:block;margin-top:3px;color:rgba(255,255,255,.62);font-size:12px}
.gk-pulse{position:absolute;z-index:1;left:0;right:0;bottom:0;height:165px;opacity:.78}
.gk-pulse svg{width:100%;height:100%}
.gk-pulse path{fill:none;stroke:rgba(245,158,11,.62);stroke-width:2.6;filter:drop-shadow(0 0 7px rgba(245,158,11,.36));stroke-dasharray:2400;stroke-dashoffset:2400;animation:gkPulse 6s linear infinite}
@keyframes gkPulse{0%{stroke-dashoffset:2400;opacity:0}8%{opacity:.9}80%{stroke-dashoffset:0;opacity:.9}94%{stroke-dashoffset:0;opacity:0}100%{stroke-dashoffset:2400;opacity:0}}
.gk-section{max-width:1280px;margin:0 auto;padding:62px 24px}
.gk-section-head{text-align:center;max-width:760px;margin:0 auto 38px}
.gk-eyebrow{color:var(--amber-500);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;margin-bottom:8px}
.gk-section h2{margin:0 0 10px;color:var(--text);font-size:clamp(28px,3vw,38px);font-weight:900}
.gk-muted{color:var(--muted);font-size:15px}
.gk-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.gk-card,.gk-content-card,.gk-person-card,.gk-event-card{background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.gk-card{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.gk-card:hover{transform:translateY(-7px);box-shadow:0 22px 44px rgba(15,23,42,.16);border-color:rgba(245,158,11,.38)}
.gk-card-media{height:190px;background:linear-gradient(135deg,#fff7ed,#dbeafe);overflow:hidden;border-bottom:5px solid var(--amber-500)}
.gk-card-media img{width:100%;height:100%;object-fit:contain;transition:transform .3s ease}
.gk-card:hover .gk-card-media img{transform:scale(1.035)}
.gk-card-body{padding:24px}
.gk-card-kicker{display:block;margin-bottom:10px;color:var(--amber-500);font-size:12px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}
.gk-card h3{margin:0 0 10px;font-size:20px;line-height:1.35}
.gk-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.7}
.gk-announcement-card{background:#fff}
.gk-announcement-card .gk-card-media{border-bottom:5px solid var(--amber-500)}
.gk-announcement-media{position:relative;height:230px;background:#fff}
.gk-announcement-media img{position:relative;z-index:0;object-fit:cover}
.gk-announcement-media:after{content:none}
.gk-announcement-media span{position:absolute;inset:0;z-index:2;display:flex;align-items:center;justify-content:center;padding:16px;color:var(--navy-800);font-size:clamp(12px,1.05vw,16px);font-weight:900;line-height:1.24;text-align:center;text-transform:uppercase;text-shadow:0 1px 0 rgba(255,255,255,.9)}
.gk-page-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#050e1a 0%,#0d1f3c 52%,#1d4ed8 100%);color:#fff}
.gk-page-hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,.06) 1px,transparent 1px);background-size:30px 30px}
.gk-page-hero-inner{position:relative;max-width:1180px;margin:0 auto;padding:64px 24px 72px}
.gk-page-hero h1{margin:0 0 14px;color:#fff;font-size:clamp(32px,4vw,52px);font-weight:900}
.gk-page-hero p{max-width:720px;margin:0;color:rgba(255,255,255,.72);font-size:16px;line-height:1.7}
.gk-content-wrap{max-width:1180px;margin:0 auto;padding:42px 24px 70px}
.gk-content-card{padding:30px}
.gk-content-card h1,.gk-content-card h2{margin-top:0;color:var(--navy-900)}
.gk-content-card table{width:100%;border-collapse:separate;border-spacing:0 12px}
.gk-content-card td,.gk-content-card th{background:#fff;border:1px solid var(--border);padding:16px;text-align:left}
.gk-content-card tr td:first-child,.gk-content-card tr th:first-child{border-radius:12px 0 0 12px}
.gk-content-card tr td:last-child,.gk-content-card tr th:last-child{border-radius:0 12px 12px 0}
.gk-event-list{display:grid;gap:16px}
.gk-event-card{padding:24px;border-left:5px solid var(--amber-500)}
.gk-event-card strong{display:block;margin-bottom:8px;color:#b45309}
.gk-event-card a{color:var(--navy-800);font-size:18px;font-weight:900}
.gk-event-card a:hover{color:var(--amber-500)}
.gk-board-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.gk-person-card{padding:24px}
.gk-person-role{display:inline-block;margin-bottom:12px;padding:6px 10px;border-radius:999px;background:#fef3c7;color:#b45309;font-size:12px;font-weight:900}
.gk-person-name{font-size:19px;font-weight:900}
.gk-footer{background:var(--navy-950);color:rgba(255,255,255,.65);padding:48px 24px 24px}
.gk-footer-inner{max-width:1280px;margin:0 auto}
.gk-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;margin-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1)}
.gk-footer-brand-logo{margin-bottom:14px}
.gk-footer-brand-logo img{display:block;width:auto;height:99px;max-width:310px;object-fit:contain}
.gk-footer p{max-width:330px;margin:0 0 18px;line-height:1.65}
.gk-socials{display:flex;gap:12px}
.gk-socials a{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:rgba(255,255,255,.08);color:#fff;font-weight:900;font-size:16px;transition:transform .2s ease,background .2s ease,color .2s ease}
.gk-socials a:hover{transform:translateY(-3px);background:var(--amber-500);color:var(--navy-900)}
.gk-footer h3{margin:0 0 16px;color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase}
.gk-footer-links{display:flex;flex-direction:column;gap:10px}
.gk-footer-links a,.gk-footer-links span{color:rgba(255,255,255,.66);font-size:14px}
.gk-footer-links a:hover{color:var(--amber-400)}
.gk-footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:rgba(255,255,255,.38);font-size:12px}
@media(max-width:1023px){.gk-menu-btn{display:block}.gk-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--navy-800);padding:16px 24px;align-items:flex-start;flex-direction:column}.gk-nav.open{display:flex}.gk-nav a{width:100%}.gk-hero-inner{grid-template-columns:1fr}.gk-month-panel{max-width:none}.gk-card-grid,.gk-board-grid,.gk-footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.gk-header-inner{padding:10px 16px}.gk-logo{gap:10px}.gk-logo-tkd img{height:42px;max-width:156px}.gk-logo-branch img{height:42px;max-width:190px}.gk-logo-sep{height:40px}.gk-hero-inner{padding:46px 18px 118px}.gk-page-hero-inner{padding:46px 18px 62px}.gk-section,.gk-content-wrap{padding-left:18px;padding-right:18px}.gk-card-grid,.gk-board-grid,.gk-footer-grid{grid-template-columns:1fr}.gk-stats{gap:20px}.gk-stat{border-right:0;margin-right:0;padding-right:0}}

.gk-sunu-panel{position:relative;overflow:hidden;background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:34px}
.gk-sunu-panel:before{content:"";position:absolute;right:-120px;top:-140px;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.24),rgba(29,78,216,.08) 58%,transparent 70%)}
.gk-sunu-head{position:relative;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}
.gk-sunu-head h2{margin:4px 0 8px;color:var(--navy-900);font-size:30px;line-height:1.2}
.gk-sunu-head p{margin:0;color:var(--muted)}
.gk-sunu-count{min-width:116px;padding:16px;border-radius:16px;background:linear-gradient(135deg,var(--navy-800),var(--blue-700));color:#fff;text-align:center;box-shadow:0 16px 30px rgba(29,78,216,.18)}
.gk-sunu-count strong{display:block;font-size:32px;line-height:1;font-weight:900}
.gk-sunu-count span{display:block;margin-top:5px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.gk-sunu-feature-grid{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:28px}
.gk-sunu-feature{padding:18px;border-radius:14px;background:linear-gradient(135deg,#fff7ed,#eff6ff);border:1px solid #fde68a}
.gk-sunu-feature span{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:10px;background:var(--amber-500);color:var(--navy-900);font-weight:900;margin-bottom:12px}
.gk-sunu-feature strong{display:block;color:var(--navy-900);font-size:16px;margin-bottom:6px}
.gk-sunu-feature p{margin:0;color:var(--muted);font-size:14px}
.gk-sunu-list{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.gk-sunu-card{display:grid;grid-template-columns:48px 92px 1fr;align-items:center;gap:14px;padding:16px;border-radius:14px;background:#f8fafc;border:1px solid var(--border);color:var(--text);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease}
.gk-sunu-card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(15,23,42,.12);border-color:rgba(245,158,11,.55);background:#fff}
.gk-sunu-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:linear-gradient(135deg,var(--amber-500),var(--amber-400));color:var(--navy-900);font-weight:900}
.gk-sunu-meta strong{display:block;color:var(--navy-900);font-size:16px}
.gk-sunu-meta em{display:block;margin-top:2px;color:var(--amber-500);font-style:normal;font-size:11px;font-weight:900;letter-spacing:.06em;text-transform:uppercase}
.gk-sunu-title{color:#1e293b;font-size:14px;line-height:1.45}
@media(max-width:900px){.gk-sunu-head{flex-direction:column}.gk-sunu-feature-grid,.gk-sunu-list{grid-template-columns:1fr}.gk-sunu-card{grid-template-columns:44px 1fr}.gk-sunu-meta{grid-column:2}.gk-sunu-title{grid-column:2}}

.gk-article{font-size:16px;line-height:1.78}
.gk-article h2{margin:0 0 10px;color:var(--navy-900);font-size:32px;line-height:1.25}
.gk-article h3{margin:34px 0 12px;color:var(--navy-900);font-size:23px;line-height:1.3}
.gk-article h4{margin:24px 0 8px;color:#1e293b;font-size:18px;line-height:1.35}
.gk-article p{margin:0 0 16px;color:#334155}
.gk-lead{color:var(--muted);font-size:18px;font-weight:700}
.gk-note{margin-top:28px;padding:22px;border-left:5px solid var(--amber-500);border-radius:12px;background:#fff7ed}
.gk-note strong{display:block;margin-bottom:8px;color:#92400e;font-size:18px}
.gk-note p{margin:0;color:#475569}
.gk-figure{margin:24px 0 30px;padding:14px;border:1px solid var(--border);border-radius:14px;background:#f8fafc}
.gk-figure img{width:100%;max-height:620px;object-fit:contain;border-radius:10px;background:#fff}
.gk-figure figcaption{margin-top:12px;color:var(--muted);font-size:14px;line-height:1.55}
.gk-message-list,.gk-reference-list{margin:0 0 18px;padding-left:22px;color:#334155}
.gk-message-list li,.gk-reference-list li{margin-bottom:8px}
.gk-download-card{position:relative;overflow:hidden;padding:34px}
.gk-download-card:before{content:"";position:absolute;right:-90px;top:-120px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.18),rgba(29,78,216,.06) 60%,transparent 72%)}
.gk-download-card h2,.gk-download-card p,.gk-download-card a,.gk-download-card span{position:relative}
.gk-download-card h2{margin:0 0 10px;color:var(--navy-900);font-size:30px}
.gk-download-card p{max-width:620px;margin:0 0 24px;color:var(--muted)}