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

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    min-height: 100vh;
    background: #81D8D0 !important;
    background-color: #81D8D0 !important;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    padding: 30px 25px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    margin-top: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    display: block;
    max-width: 140px !important;
    max-height: 40px !important;
    width: auto;
    height: auto;
    margin: 0 auto 15px auto;
}

h1 {
    font-size: 22px;
    color: #333;
    margin-bottom: 8px;
    font-weight: 600;
}

.subtitle {
    color: #666;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 16px;
    transition: border-color 0.3s, box-shadow 0.3s;
    outline: none;
}

input:focus {
    border-color: #81D8D0;
    box-shadow: 0 0 0 3px rgba(129, 216, 208, 0.3);
}

input::placeholder {
    color: #aaa;
}

button {
    width: 100%;
    padding: 16px;
    background: #81D8D0;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(129, 216, 208, 0.6);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.error-message {
    color: #e74c3c;
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
    display: none;
}

.error-message.show {
    display: block;
}

@media (max-height: 500px) {
    .container {
        margin-top: 10px;
        padding: 20px;
    }
    
    .emoji {
        font-size: 36px;
        margin-bottom: 10px;
    }
    
    h1 {
        font-size: 18px;
    }
}