:root{--primary:#ffcc00;--accent:#d7263d;--muted:#70737a;--bg:#f6f7fb;--card:#ffffff}
    *{box-sizing:border-box;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,'Helvetica Neue',Arial}
    body{margin:0;background:var(--bg);color:#222;display:flex;min-height:100vh;align-items:center;justify-content:center;padding:20px}
    a{color:inherit}

    .signin-wrapper{width:100%;max-width:900px;display:flex;overflow:hidden;border-radius:12px;box-shadow:0 6px 30px rgba(16,24,40,0.08);margin:auto;justify-content:center;align-items:stretch;transition: all 0.5s ease;}
    .brand-side{flex:1;display:flex;flex-direction:column;justify-content:center;padding:0; background: linear-gradient(to bottom, #fff9c4 0%, rgba(255,255,255,0) 100%);}
    .brand-logo{display:flex;align-items:center;gap:12px;padding:36px 20px}
    h1{margin:18px 0 6px;font-size:22px}
    p.lead{margin:0;color:var(--muted)}

    .form-container{position:relative;flex:1;display:flex;overflow:hidden;min-height:580px}
    .form-side{position:absolute;top:0;width:100%;padding:36px 40px;display:flex;flex-direction:column;justify-content:center;transition: all 0.5s ease;}
    .form-side.active{left:0;z-index:2;}
    .form-side.inactive-left{left:-100%;z-index:1;}
    .form-side.inactive-right{left:100%;z-index:1;}

    form{display:flex;flex-direction:column;gap:14px}
    label{font-size:13px;color:var(--muted)}
    input[type="text"],input[type="email"],input[type="password"]{padding:12px 14px;border:1px solid #e6e7ee;border-radius:8px;font-size:15px;width:100%;box-sizing:border-box;}
    .btn{display:inline-block;padding:12px 16px;border-radius:10px;background:var(--accent);color:white;border:none;font-weight:600;cursor:pointer}
    .btn.secondary{background:transparent;color:var(--accent);border:1px solid rgba(215,38,61,0.12)}
    .muted{color:var(--muted);font-size:13px}
    .row{display:flex;gap:12px}

    /* Ensure store name field has same styling as other inputs */
    #store{padding:12px 14px;border:1px solid #e6e7ee;border-radius:8px;font-size:15px;width:100%;box-sizing:border-box;}

    @media(max-width:880px){
      body{padding:10px}
      .signin-wrapper{flex-direction:column;max-width:520px}
      .brand-side{padding:28px}
      .form-side{padding:28px;min-height:auto}
    }
    .form-message {
      margin-bottom: 10px;
      padding: 10px;
      border-radius: 6px;
      font-size: 14px;
      display: none;
    }
    
    .form-message.error {
      background: #ffe6e6;
      color: #FF0000;
      border: 1px solid #ffb3b3;
    }
    
    .form-message.success {
      background: #e6ffe6;
      color: #50C878;
      border: 1px solid #b3ffb3;
    }