* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
}

.hearts-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.heart {
    position: absolute;
    font-size: 30px;
    color: #ffb6c1;
    opacity: 0.7;
    animation: fall linear infinite;
}

@keyframes fall {
    0% {
        top: -10%;
        opacity: 0.7;
    }
    100% {
        top: 110%;
        opacity: 0;
    }
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    padding: 50px 40px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    text-align: center;
    z-index: 10;
    position: relative;
}

.login-box h2 {
    color: #cc0000;
    margin-bottom: 30px;
    font-size: 24px;
}

#passwordInput {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    border: 2px solid #ffb6c1;
    border-radius: 10px;
    text-align: center;
    outline: none;
    transition: all 0.3s;
}

#passwordInput:focus {
    border-color: #ff0000;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.3);
}

#errorMessage {
    color: #ff0000;
    margin-top: 15px;
    font-size: 14px;
    min-height: 20px;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
    20%, 40%, 60%, 80% { transform: translateX(10px); }
}

#girisButton {
    width: 100%;
    padding: 15px;
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    background: linear-gradient(135deg, #ab0909 0%, #cc0000 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

#girisButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 0, 0, 0.4);
}

#girisButton:active {
    transform: translateY(0);
}