/* Kırmızı Kampüs görsel yenilemesi — haricî font ya da CDN bağımlılığı yok. */
:root{--red:#e73d50;--red2:#ff6773;--red-dark:#b5263a;--ink:#171e2b;--muted:#6d7889;--line:#e6e9ef;--shadow:0 12px 48px rgba(22,26,42,.065)}
body{font-family:"Aptos","Segoe UI Variable","Segoe UI",Arial,sans-serif;background:#f5f6f8;color:var(--ink)}h1,h2,h3,.logo-text{font-family:"Aptos Display","Segoe UI Variable Display","Segoe UI",Arial,sans-serif;letter-spacing:-.55px}button,input,select{font-family:inherit}.sidebar{background:#fcfcfd;border-right:1px solid #e8e9ee}.logo{padding-bottom:15px}.logo-mark{background:linear-gradient(145deg,#d92740,#fc6872);border-radius:12px;box-shadow:0 8px 28px #ce2f4640}.logo-text{font-size:14px}.logo-text strong{font-size:20px}.main-site-link{display:block;margin:0 8px 8px;padding:9px 12px;border-radius:9px;font-size:12px;font-weight:800;text-decoration:none;color:#b12840;background:#fff0f2;border:1px solid #f8d5da}.main-site-link:hover{background:#ffe6e9}.topbar{background:#fff;border-bottom:1px solid #e9edf3}.profile-trigger{border-radius:11px}.hero{background:linear-gradient(112deg,#bd2239,#f54c5c);border-radius:19px;box-shadow:0 15px 40px #d62b3b1c}.grade-card,.subject-card,.topic-card,.paper,.stat{border-color:#e6e9ef;box-shadow:0 4px 20px #18203408}.grade-card:hover,.subject-card:hover,.topic-card:hover{border-color:#ff939f}.btn-red{background:#e63c51}.page-heading h1{letter-spacing:-1.1px}.footer{font-size:11px}