/* SezR Matematik - Tüm Sayfalar Premium Ortak Katman */
:root{--sezr-gold:#facc15;--sezr-blue:#38bdf8;--sezr-green:#25d366;--sezr-red:#ef4444}
body{background:#020617!important}
body:before{content:"";position:fixed;inset:0;z-index:-5;background:radial-gradient(circle at 12% 10%,rgba(56,189,248,.24),transparent 32%),radial-gradient(circle at 85% 18%,rgba(250,204,21,.18),transparent 30%),radial-gradient(circle at 50% 105%,rgba(167,139,250,.16),transparent 34%),linear-gradient(135deg,#020617,#07111f 45%,#111827)!important}
body:after{content:"";position:fixed;inset:0;z-index:-4;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;opacity:.22}
.sezr-particles{position:fixed;inset:0;pointer-events:none;z-index:-3;overflow:hidden}
.sezr-particle{position:absolute;font-family:Montserrat,Inter,sans-serif;font-weight:900;color:rgba(255,255,255,.075);text-shadow:0 0 22px rgba(56,189,248,.18);animation:sezrFloat var(--dur,15s) ease-in-out infinite}
.sezr-particle.gold{color:rgba(250,204,21,.16)}.sezr-particle.blue{color:rgba(56,189,248,.14)}.sezr-particle.green{color:rgba(37,211,102,.13)}
@keyframes sezrFloat{0%,100%{transform:translate3d(0,0,0) rotate(0deg);opacity:.32}50%{transform:translate3d(var(--x,30px),var(--y,-45px),0) rotate(var(--r,14deg));opacity:.85}}
.sezr-mouse-glow{position:fixed;width:420px;height:420px;border-radius:50%;pointer-events:none;z-index:1;background:radial-gradient(circle,rgba(56,189,248,.16),rgba(250,204,21,.08),transparent 70%);filter:blur(20px);transform:translate(-50%,-50%);opacity:0;transition:opacity .3s}
.container{position:relative;z-index:3}.topbar{box-shadow:0 20px 50px rgba(0,0,0,.30)!important}.logo span,.gold{color:var(--sezr-gold)!important;text-shadow:0 0 25px rgba(250,204,21,.35)}
.page-hero{position:relative;margin:22px 0 32px;padding:38px;border-radius:34px;background:linear-gradient(135deg,rgba(56,189,248,.14),rgba(250,204,21,.09),rgba(167,139,250,.10)),rgba(2,6,23,.58);border:1px solid rgba(255,255,255,.16);overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.28)}
.page-hero:before{content:"";position:absolute;right:-80px;top:-110px;width:310px;height:310px;border-radius:50%;background:radial-gradient(circle,rgba(250,204,21,.22),transparent 70%)}
.page-hero h1{font-size:clamp(38px,6vw,72px);line-height:1.02;letter-spacing:-1.5px;text-shadow:0 20px 55px rgba(0,0,0,.42)}
.page-hero .lead{max-width:850px}.page-badge{display:inline-flex;gap:8px;align-items:center;padding:10px 15px;border-radius:999px;background:rgba(250,204,21,.12);border:1px solid rgba(250,204,21,.38);color:var(--sezr-gold);font-weight:900;margin-bottom:16px}.page-badge:before{content:"✦"}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:24px;max-width:820px}.stat{padding:16px;border-radius:22px;background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.13);backdrop-filter:blur(14px)}.stat b{display:block;font-size:24px;color:var(--sezr-gold)}.stat span{display:block;font-size:13px;color:#cbd5e1;margin-top:5px;font-weight:800}
.card,.video-card,.focus-stage-card,.focus-control-studio,.focus-option-card,.focus-youtube-card,.focus-mode-card,.footer{position:relative;overflow:hidden;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:before,.video-card:before,.focus-stage-card:before,.focus-control-studio:before,.focus-option-card:before,.focus-youtube-card:before,.focus-mode-card:before{content:"";position:absolute;inset:-2px;background:linear-gradient(120deg,transparent,rgba(250,204,21,.22),rgba(56,189,248,.18),transparent);opacity:0;transition:.35s}
.card:hover:before,.video-card:hover:before,.focus-stage-card:hover:before,.focus-control-studio:hover:before,.focus-option-card:hover:before,.focus-youtube-card:hover:before,.focus-mode-card:hover:before{opacity:1}
.card>*,.video-card>*,.focus-stage-card>*,.focus-control-studio>*,.focus-option-card>*,.focus-youtube-card>*,.focus-mode-card>*{position:relative;z-index:1}
.card:hover,.video-card:hover,.focus-stage-card:hover,.focus-control-studio:hover,.focus-option-card:hover,.focus-youtube-card:hover,.focus-mode-card:hover{transform:translateY(-6px);border-color:rgba(250,204,21,.38)!important;box-shadow:0 26px 60px rgba(0,0,0,.36),0 0 30px rgba(56,189,248,.12)!important}
.btn,.focus-btn,.studio-btn,.nav a,.quick a,.focus-input-row button{transition:transform .22s ease,filter .22s ease,box-shadow .22s ease!important}
.btn:hover,.focus-btn:hover,.studio-btn:hover,.nav a:hover,.focus-input-row button:hover{transform:translateY(-2px) scale(1.025);filter:brightness(1.08)}
.sezr-reveal{opacity:0;transform:translateY(22px) scale(.985);transition:opacity .7s ease,transform .7s ease}.sezr-reveal.sezr-visible{opacity:1;transform:translateY(0) scale(1)}
.sezr-wa-float{position:fixed;right:18px;bottom:150px;z-index:160;display:flex;align-items:center;gap:10px;text-decoration:none;color:white;background:linear-gradient(180deg,#25d366,#128c4a);padding:13px 16px;border-radius:999px;font-weight:900;box-shadow:0 18px 38px rgba(37,211,102,.30);animation:sezrPulse 2.6s ease-in-out infinite}.sezr-wa-float span{font-size:22px}@keyframes sezrPulse{50%{transform:translateY(-4px)}}
.premium-mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:18px}.premium-mini{padding:22px;border-radius:26px;background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.13)}.premium-mini h3{font-family:Montserrat,Inter,sans-serif;margin-bottom:8px}.premium-mini p{color:#dbeafe;line-height:1.6}
@media(max-width:900px){.page-hero{padding:24px;border-radius:26px;text-align:center}.hero-stats,.premium-mini-grid{grid-template-columns:1fr}.sezr-wa-float{right:12px;bottom:72px;padding:11px 13px}.sezr-wa-float b{display:none}.sezr-mouse-glow{display:none}}