:root{
  --bg:#070a10;
  --bg-2:#0b0e16;
  --panel:#111521;
  --panel-2:#161a27;
  --line:rgba(238,185,77,.18);
  --gold:#e8b94f;
  --gold-2:#ffe39a;
  --red:#a71818;
  --red-2:#671010;
  --text:#f7f1e5;
  --muted:#a9acb7;
  --green:#86dc57;
  --shadow:0 18px 55px rgba(0,0,0,.42)
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Arial,sans-serif;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%;display:block}

.site-header{position:fixed;inset:0 0 auto;z-index:50;height:72px;background:rgba(6,8,13,.88);border-bottom:1px solid rgba(238,185,77,.12);backdrop-filter:blur(16px);transition:.25s}
.site-header.scrolled{height:64px;background:rgba(6,8,13,.96);box-shadow:0 8px 30px rgba(0,0,0,.28)}
.header-inner{height:100%;max-width:1320px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:30px}
.brand{width:145px;flex:0 0 145px}
.brand img{width:116px;max-height:44px;object-fit:contain;filter:drop-shadow(0 3px 8px #000)}
.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto}
.main-nav a{position:relative;padding:25px 0 22px;color:#b8bdc8;font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.7px;transition:.2s}
.main-nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:13px;height:2px;background:var(--gold);transition:.2s}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover::after,.main-nav a.active::after{left:0;right:0}
.header-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}
.login-link{color:#c5c8d0;font-weight:700;font-size:.86rem}
.register-link{padding:11px 19px;border-radius:9px;color:#241500;background:linear-gradient(135deg,var(--gold-2),var(--gold));font-weight:900;font-size:.82rem;text-transform:uppercase;box-shadow:0 0 24px rgba(232,185,79,.18)}
.menu-button{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.03);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-button span{width:19px;height:2px;background:var(--gold-2)}

.hero{position:relative;min-height:900px;padding:128px 28px 128px;display:flex;align-items:center;overflow:hidden;background:#0a0c13 url("../img/hero-fallback.jpg") center/cover no-repeat}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(5,7,12,.96) 0%,rgba(5,7,12,.82) 40%,rgba(5,7,12,.22) 72%,rgba(5,7,12,.58) 100%),
  linear-gradient(0deg,var(--bg) 0%,transparent 20%,rgba(5,7,12,.2) 100%)}
.hero-grid{position:relative;z-index:2;width:min(1320px,100%);margin:auto;display:grid;grid-template-columns:minmax(0,670px) minmax(360px,1fr);gap:80px;align-items:center}
.hero-copy{padding-top:18px}
.server-status{width:max-content;max-width:100%;display:flex;align-items:center;gap:10px;padding:9px 14px;border:1px solid rgba(134,220,87,.35);border-radius:999px;background:rgba(7,11,14,.72);font-size:.76rem;color:#c5cad2}
.server-status i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 13px var(--green);animation:pulse 1.8s ease-in-out infinite}
.server-status strong{color:#bde99f;font-size:.74rem;letter-spacing:.5px}
.server-status span:nth-last-child(2){color:#626875}
.eyebrow{display:flex;align-items:center;gap:12px;margin:22px 0 8px;color:var(--gold);font-size:.78rem;font-weight:900;letter-spacing:5px}
.eyebrow::before,.eyebrow::after{content:"";width:28px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.eyebrow::after{transform:scaleX(-1)}
.hero-logo{width:min(510px,82vw);max-height:190px;object-fit:contain;object-position:left center;margin:4px 0 2px;filter:drop-shadow(0 10px 25px rgba(0,0,0,.8)) drop-shadow(0 0 28px rgba(225,80,22,.22))}
.hero h1{margin:6px 0 12px;font:800 clamp(1.7rem,3.4vw,3.25rem)/1.12 Cinzel,serif;letter-spacing:6px;text-shadow:0 4px 20px #000}
.hero-text{max-width:650px;margin:0 0 24px;color:#c5c7cd;font-size:1.05rem;line-height:1.85}
.announcement{max-width:570px;min-height:64px;margin:0 0 22px;padding:15px 18px;display:flex;align-items:center;gap:12px;border:1px solid rgba(232,185,79,.32);border-radius:12px;background:linear-gradient(90deg,rgba(24,20,18,.9),rgba(17,17,25,.76));box-shadow:inset 0 0 28px rgba(232,185,79,.035)}
.announcement i{width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px rgba(232,185,79,.7)}
.announcement span{color:var(--gold-2);font-size:.76rem;font-weight:900;letter-spacing:2.2px}
.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px}
.hero-tags span{padding:8px 13px;border:1px solid rgba(232,185,79,.2);border-radius:999px;background:rgba(10,11,17,.72);color:#d7d4cc;font-size:.76rem;font-weight:700}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.primary-button,.secondary-button,.ghost-button{min-height:50px;padding:0 21px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-weight:900;font-size:.85rem;transition:.2s}
.primary-button{color:#231500;background:linear-gradient(135deg,#ffe994,#d9a62e);box-shadow:0 8px 28px rgba(232,185,79,.2)}
.secondary-button{border:1px solid rgba(255,255,255,.18);background:rgba(17,20,28,.82);color:#fff}
.ghost-button{border:1px solid rgba(232,185,79,.18);color:#d8d7d3;background:rgba(12,13,19,.45)}
.primary-button:hover,.secondary-button:hover,.ghost-button:hover{transform:translateY(-2px);filter:brightness(1.08)}

.hero-orbit{position:relative;height:520px;display:grid;place-items:center}
.orbit-core{position:relative;width:235px;height:235px;display:grid;place-items:center;transform:rotate(45deg);border:1px solid rgba(232,185,79,.27);background:linear-gradient(135deg,rgba(167,24,24,.48),rgba(232,185,79,.09));box-shadow:0 0 90px rgba(167,24,24,.18)}
.orbit-core::before,.orbit-core::after{content:"";position:absolute;inset:24px;border:1px solid rgba(232,185,79,.18)}
.orbit-core::after{inset:-38px;border-style:dashed;animation:rotate 24s linear infinite}
.orbit-core span{transform:rotate(-45deg);font:800 4.2rem Cinzel,serif;color:var(--gold-2);text-shadow:0 0 25px rgba(232,185,79,.25)}
.value-badge{position:absolute;min-width:182px;padding:13px 16px 13px 51px;border:1px solid rgba(232,185,79,.22);border-radius:11px;background:rgba(11,13,20,.93);box-shadow:var(--shadow)}
.value-badge::before{content:"✦";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:28px;height:28px;display:grid;place-items:center;border-radius:7px;background:rgba(232,185,79,.16);color:var(--gold)}
.value-badge b,.value-badge small{display:block}
.value-badge b{font:800 1rem Cinzel,serif;letter-spacing:.5px}
.value-badge small{margin-top:2px;color:#858b98;font-size:.62rem;font-weight:800;letter-spacing:1px}
.badge-one{right:1%;top:12%}
.badge-two{left:0;top:48%}
.badge-three{right:-3%;bottom:10%}

.search-dock{position:absolute;left:50%;bottom:28px;z-index:3;width:min(1220px,calc(100% - 56px));transform:translateX(-50%)}
.search-dock label{height:58px;padding:0 16px;display:flex;align-items:center;gap:13px;border:1px solid rgba(232,185,79,.28);border-radius:15px;background:rgba(6,8,14,.92);box-shadow:0 15px 44px rgba(0,0,0,.45);backdrop-filter:blur(16px)}
.search-dock svg{width:22px;height:22px;flex:0 0 auto;fill:none;stroke:var(--gold);stroke-width:2}
.search-dock input{width:100%;height:100%;border:0;outline:0;background:transparent;color:#fff;font-size:.95rem}
.search-dock input::placeholder{color:#707785}
.search-dock kbd{padding:5px 8px;border:1px solid rgba(255,255,255,.12);border-radius:6px;background:#151925;color:#727987;font-size:.68rem}

.presentation{padding:90px 28px 110px;background:
  radial-gradient(circle at 8% 15%,rgba(167,24,24,.09),transparent 28%),
  radial-gradient(circle at 88% 40%,rgba(232,185,79,.045),transparent 28%),var(--bg)}
.presentation-head{margin:0 0 38px;display:flex;align-items:end;justify-content:space-between;gap:30px}
.section-kicker{display:block;margin-bottom:8px;color:var(--gold);font-size:.72rem;font-weight:900;letter-spacing:4px}
.presentation h2,.classes h2,.final-cta h2{margin:0;font:800 clamp(1.8rem,3vw,2.7rem) Cinzel,serif;letter-spacing:2px}
.presentation-head p,.classes-copy p{max-width:650px;margin:10px 0 0;color:var(--muted);line-height:1.7}
.result-count{display:flex;align-items:end;gap:9px;color:#717784}
.result-count strong{font:800 2.5rem Cinzel,serif;color:var(--gold-2);line-height:1}
.result-count span{font-size:.75rem;text-transform:uppercase;letter-spacing:1px}
.presentation-layout{max-width:1320px;margin:auto;display:grid;grid-template-columns:250px minmax(0,1fr);gap:28px;align-items:start}
.category-panel{position:sticky;top:88px;padding:15px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(160deg,rgba(19,22,33,.96),rgba(9,11,17,.96));box-shadow:var(--shadow)}
.category-title{padding:8px 11px 13px;color:#686f7d;font-size:.66rem;font-weight:900;letter-spacing:2px}
#categoryList{display:grid;gap:5px}
.category-button{width:100%;padding:12px 12px;display:flex;align-items:center;gap:11px;border:1px solid transparent;border-radius:9px;background:transparent;color:#9ca1ad;text-align:left;cursor:pointer;font-weight:750;font-size:.82rem;transition:.2s}
.category-button i{width:8px;height:8px;border:1px solid #747b88;transform:rotate(45deg);transition:.2s}
.category-button span{margin-left:auto;color:#666d7b;font-size:.68rem}
.category-button:hover{background:rgba(255,255,255,.035);color:#fff}
.category-button.active{border-color:rgba(232,185,79,.2);background:linear-gradient(90deg,rgba(167,24,24,.28),rgba(232,185,79,.05));color:var(--gold-2)}
.category-button.active i{border-color:var(--gold);background:var(--gold);box-shadow:0 0 10px rgba(232,185,79,.45)}
.side-cta{margin-top:16px;padding:18px 15px;border:1px solid rgba(167,24,24,.3);border-radius:11px;background:linear-gradient(145deg,rgba(167,24,24,.18),rgba(11,13,20,.6))}
.side-cta span,.side-cta strong,.side-cta a{display:block}
.side-cta span{color:var(--gold);font:800 .72rem Cinzel,serif;letter-spacing:2px}
.side-cta strong{margin:6px 0 13px;font-size:.9rem}
.side-cta a{color:#e6c56f;font-size:.75rem;font-weight:800}
.mobile-categories{display:none}
.system-sections{display:grid;gap:64px}
.chapter-group{scroll-margin-top:82px}
.chapter-heading{position:relative;margin-bottom:20px;padding:0 0 15px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line)}
.chapter-heading>span{width:44px;height:44px;display:grid;place-items:center;border:1px solid rgba(232,185,79,.34);border-radius:10px;background:rgba(167,24,24,.18);color:var(--gold-2);font:800 .85rem Cinzel,serif}
.chapter-heading div{flex:1}
.chapter-heading small{display:block;color:#69717f;font-size:.6rem;font-weight:900;letter-spacing:1.8px}
.chapter-heading h3{margin:3px 0 0;font:800 1.35rem Cinzel,serif;color:#fff;letter-spacing:.8px}
.chapter-heading b{color:#777e8b;font-size:.65rem;letter-spacing:1px}
.chapter-list{display:grid;gap:22px}
.system-section{min-height:390px;display:grid;grid-template-columns:minmax(280px,40%) minmax(0,1fr);border:1px solid var(--line);border-radius:15px;background:linear-gradient(145deg,#131722,#0d1018);overflow:hidden;box-shadow:0 15px 44px rgba(0,0,0,.28);scroll-margin-top:82px}
.system-section:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(280px,40%)}
.system-section:nth-child(even) .section-media{order:2}
.section-media{position:relative;min-height:390px;overflow:hidden;background:#0b0d14}
.section-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 45%,rgba(13,16,24,.9) 100%),linear-gradient(0deg,rgba(5,7,11,.62),transparent 50%)}
.system-section:nth-child(even) .section-media::after{background:linear-gradient(-90deg,transparent 45%,rgba(13,16,24,.9) 100%),linear-gradient(0deg,rgba(5,7,11,.62),transparent 50%)}
.section-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.system-section:hover .section-media img{transform:scale(1.035)}
.section-index{position:absolute;z-index:2;left:18px;top:18px;padding:7px 10px;border:1px solid rgba(232,185,79,.34);border-radius:7px;background:rgba(6,8,13,.84);color:var(--gold-2);font:800 .74rem Cinzel,serif}
.section-media-label{position:absolute;z-index:2;left:18px;bottom:18px;padding:6px 10px;border-radius:6px;background:rgba(167,24,24,.8);font-size:.62rem;font-weight:900;letter-spacing:1px;text-transform:uppercase}
.section-body{padding:34px 34px 30px;display:flex;flex-direction:column;justify-content:center}
.section-label{display:inline-flex;margin-bottom:8px;color:var(--gold);font-size:.65rem;font-weight:900;letter-spacing:1.8px;text-transform:uppercase}
.section-body h3{margin:0 0 12px;font:800 clamp(1.35rem,2vw,1.85rem) Cinzel,serif;letter-spacing:.5px}
.section-body>p{margin:0;color:#adb1bc;font-size:.92rem;line-height:1.75}
.section-details{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.section-details>div{padding:15px 16px;border:1px solid rgba(232,185,79,.12);border-radius:10px;background:rgba(255,255,255,.018)}
.section-details h4{margin:0 0 10px;color:#d8bd74;font:800 .68rem Cinzel,serif;letter-spacing:.8px}
.section-details ul,.section-details ol{margin:0;padding-left:18px;display:grid;gap:6px;color:#979ca8;font-size:.76rem;line-height:1.45}
.empty-state{padding:70px 25px;border:1px dashed rgba(232,185,79,.25);border-radius:15px;text-align:center;background:rgba(255,255,255,.015)}
.empty-state strong{display:block;font:800 1.35rem Cinzel,serif;color:var(--gold-2)}
.empty-state p{color:var(--muted)}
.empty-state button{padding:10px 15px;border:1px solid var(--line);border-radius:8px;background:var(--red-2);cursor:pointer}

.classes{padding:100px 28px;background:
  linear-gradient(rgba(7,9,14,.88),rgba(7,9,14,.97)),
  url("../img/bolum-arka.jpg") center/cover fixed no-repeat}
.classes-copy{max-width:1320px;margin:0 auto 34px}
.class-grid{max-width:1320px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.class-grid figure{position:relative;margin:0;aspect-ratio:520/730;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#11131a;box-shadow:var(--shadow)}
.class-grid figure::after{content:"";position:absolute;inset:30% 0 0;background:linear-gradient(0deg,rgba(5,6,10,.98),transparent)}
.class-grid img{width:100%;height:100%;object-fit:cover;transition:.6s}
.class-grid figure:hover img{transform:scale(1.05)}
.class-grid figcaption{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:22px;text-align:center}
.class-grid figcaption strong,.class-grid figcaption span{display:block}
.class-grid figcaption strong{font:800 1.1rem Cinzel,serif;color:var(--gold-2);letter-spacing:1.5px}
.class-grid figcaption span{margin-top:5px;color:#a8aab1;font-size:.76rem}

.final-cta{padding:95px 28px;text-align:center;background:
  radial-gradient(circle at 50% 45%,rgba(167,24,24,.3),transparent 35%),
  linear-gradient(180deg,#090b11,#120708)}
.final-cta>img{width:260px;max-height:110px;object-fit:contain;margin:0 auto 12px;filter:drop-shadow(0 7px 20px #000)}
.final-cta>span{display:block;color:var(--gold);font-size:.68rem;font-weight:900;letter-spacing:4px}
.final-cta h2{margin:12px 0 26px}
.final-cta>div{display:flex;gap:12px;justify-content:center}
footer{min-height:90px;padding:23px max(28px,calc((100% - 1320px)/2));display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--line);background:#07090e;color:#747a86;font-size:.74rem}
footer>div{display:flex;align-items:center;gap:16px}
footer img{width:90px;max-height:35px;object-fit:contain}
footer nav{display:flex;gap:20px}
footer a:hover{color:var(--gold)}

@keyframes pulse{50%{opacity:.45;transform:scale(.82)}}
@keyframes rotate{to{transform:rotate(360deg)}}

@media (max-width:1100px){
  .main-nav{gap:17px}
  .hero-grid{grid-template-columns:minmax(0,620px) 1fr;gap:25px}
  .hero-orbit{transform:scale(.82)}
  .presentation-layout{grid-template-columns:220px minmax(0,1fr)}
}

@media (max-width:900px){
  .site-header,.site-header.scrolled{height:64px}
  .header-inner{padding:0 18px}
  .brand{width:auto;flex:1}
  .brand img{width:100px}
  .header-actions{display:none}
  .menu-button{display:flex}
  .main-nav{position:absolute;left:16px;right:16px;top:70px;padding:12px;display:none;flex-direction:column;align-items:stretch;gap:4px;border:1px solid var(--line);border-radius:12px;background:rgba(8,10,16,.98);box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 13px;border-radius:7px}
  .main-nav a::after{display:none}
  .main-nav a.active{background:rgba(167,24,24,.22);color:var(--gold-2)}
  .hero{min-height:860px;padding:105px 22px 125px;background-image:url("../img/hero-mobil.jpg")}
  .hero-video{display:none}
  .hero-grid{display:block}
  .hero-copy{max-width:690px}
  .hero-orbit{display:none}
  .presentation{padding:72px 20px 85px}
  .presentation-layout{display:block}
  .category-panel{display:none}
  .mobile-categories{display:flex;gap:8px;overflow-x:auto;margin:0 0 20px;padding-bottom:6px}
  .mobile-categories .category-button{width:auto;flex:0 0 auto;padding:10px 13px;white-space:nowrap;border:1px solid var(--line)}
  .mobile-categories .category-button span{margin-left:5px}
  .classes{padding:80px 20px}
  .class-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:620px){
  .hero{min-height:820px;padding-left:18px;padding-right:18px}
  .server-status{font-size:.68rem}
  .server-status span:last-child{display:none}
  .eyebrow{font-size:.62rem;letter-spacing:2.5px}
  .hero-logo{width:360px}
  .hero h1{font-size:1.7rem;letter-spacing:2px}
  .hero-text{font-size:.92rem;line-height:1.65}
  .announcement{min-height:54px;padding:12px 14px}
  .announcement span{font-size:.64rem;letter-spacing:1.2px}
  .hero-actions a{width:100%}
  .search-dock{bottom:20px;width:calc(100% - 30px)}
  .search-dock label{height:54px}
  .search-dock kbd{display:none}
  .search-dock input{font-size:.82rem}
  .presentation-head{display:block;margin-bottom:26px}
  .result-count{margin-top:18px}
  .system-section,.system-section:nth-child(even){display:block;min-height:0}
  .system-section:nth-child(even) .section-media{order:initial}
  .section-media{min-height:230px;height:230px}
  .section-media::after,.system-section:nth-child(even) .section-media::after{background:linear-gradient(0deg,rgba(13,16,24,.95),transparent 65%)}
  .section-body{padding:24px 20px 25px}
  .section-details{grid-template-columns:1fr}
  .chapter-heading b{display:none}
  .class-grid{gap:10px}
  .class-grid figcaption{padding:14px 8px}
  .class-grid figcaption strong{font-size:.88rem}
  .class-grid figcaption span{font-size:.66rem}
  .final-cta>div{flex-direction:column}
  footer{flex-direction:column;text-align:center}
  footer>div{flex-direction:column;gap:8px}
  footer nav{flex-wrap:wrap;justify-content:center}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .hero-video{display:none}
}