:root{
  --bg:#0b0f1a; --text:#e8ecf2; --muted:#a9b4c1; --glass:rgba(255,255,255,.08);
  --accent:#d2a042; --shadow:0 18px 40px rgba(0,0,0,.35); --radius:16px;
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial}
.container{width:min(1100px,92%);margin-inline:auto}
.site-header{position:sticky;top:0;z-index:10;background:rgba(0,0,0,.25);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.header-grid{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;gap:.6rem;align-items:center;text-decoration:none;color:var(--text);font-weight:800}
.brand-logo{font-size:1.2rem}
.nav{display:flex;gap:.6rem}
.nav-link{color:var(--muted);text-decoration:none;padding:.45rem .7rem;border-radius:10px}
.nav-link:hover{background:var(--glass);color:var(--text)}
.site-main{padding:32px 0}
.site-footer{margin-top:40px;border-top:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.02)}
.footer-grid{display:flex;justify-content:space-between;gap:1rem;padding:16px 0}
.footer-links a{color:var(--muted);text-decoration:none;margin-right:.8rem}
.copy{text-align:center;color:var(--muted);padding:8px 0 18px;font-size:.9rem}

/* Auth */
.auth-card{width:min(560px,92vw);margin:40px auto;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.title{font-weight:800;letter-spacing:.2px;text-align:center;margin:0 0 6px}
.subtitle{color:var(--muted);text-align:center;margin:0 0 16px}
label{display:block;margin:.6rem 0 .3rem}
input{width:100%;padding:.75rem 1rem;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:var(--text);outline:none}
input:focus{border-color:#7aa2ff;box-shadow:0 0 0 4px rgba(122,162,255,.15)}
.btn{display:inline-block;border:0;border-radius:12px;padding:.8rem 1rem;font-weight:800;cursor:pointer}
.btn.primary{width:100%;background:var(--accent);color:#0b0f1a}
.alert{padding:.6rem .9rem;border-radius:10px;margin-bottom:.6rem;text-align:center;font-weight:700}
.alert.success{background:#193c2c;color:#9ef0c1;border:1px solid #2f8f6b}
.alert.error{background:#3a2020;color:#ffc9c9;border:1px solid #b85c5c}
.muted{color:var(--muted);font-size:.95rem;text-align:center;margin-top:10px}
.link{color:var(--text);text-decoration:underline}

/* Panel kutuları */
.panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}