body { 
    margin:0; font-family:'Segoe UI',sans-serif; 
    background: url('https://images.unsplash.com/photo-1518531933037-91b2f5f229cc?q=80&w=1920') center/cover no-repeat fixed; 
    height:100vh; display:flex; align-items:center; justify-content:center; 
}
.box { 
    background: rgba(255,255,255,0.9); padding: 40px 30px; 
    border-radius: 16px; width: 340px; 
    backdrop-filter: blur(15px); 
    box-shadow: 0 15px 35px rgba(0,0,0,0.1); 
    text-align: center; position: relative;
}
h2 { margin-top:0; color: #333; font-weight: 800; font-size: 22px; margin-bottom: 25px; }

input { 
    width: 100%; padding: 0 12px; height: 42px; line-height: 42px;
    margin: 8px 0; border: 1px solid #e0e0e0; border-radius: 8px; 
    box-sizing: border-box; font-size: 14px; background: rgba(255,255,255,0.8);
    transition: 0.2s;
}
input:focus { border-color: #ff9a9e; outline: none; background: #fff; }

.btn { 
    width: 100%; height: 42px; margin-top: 20px;
    background: linear-gradient(90deg, #ff9a9e, #ff758c); 
    color: white; border: none; border-radius: 8px; 
    cursor: pointer; font-weight: bold; font-size: 15px; 
    transition: 0.2s; box-shadow: 0 4px 10px rgba(255, 117, 140, 0.3);
}
.btn:hover { filter: brightness(1.05); box-shadow: 0 6px 15px rgba(255, 117, 140, 0.4); }
.btn:active { transform: scale(0.98); }

.links-row { display: flex; justify-content: space-between; margin-top: 20px; font-size: 13px; }
.links-row a { color: #888; text-decoration: none; transition: 0.2s; }
.links-row a:hover { color: #ff9a9e; }

.error-msg { 
    background: #fff0f0; color: #ff4757; padding: 10px; 
    border-radius: 6px; font-size: 13px; margin-bottom: 15px; 
    text-align: left; border: 1px solid #ffcccc;
}
.success-msg {
    background: #f0fff4; color: #2ecc71; padding: 10px;
    border-radius: 6px; font-size: 13px; margin-bottom: 15px;
    border: 1px solid #ccf6dd;
}