:root {
    --primary: #ffd6e7;
    --secondary: #b5c9ff;
    --accent: #ffb7f5;
    --text: #6a4b7d;
    --error: #ff6b6b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Quicksand', sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

.stars-container {
    position: fixed;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.aurora-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60%;
    overflow: hidden;
    z-index: 1;
}

.aurora {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, 
        rgba(0, 255, 255, 0.1),
        rgba(255, 0, 255, 0.1),
        rgba(0, 255, 0, 0.1)
    );
    filter: blur(60px);
    animation: aurora 15s linear infinite;
}

.user-profile {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: transform 0.3s;
}

.user-avatar:hover {
    transform: scale(1.1);
}

.user-dropdown {
    position: absolute;
    top: 50px;
    left: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 15px;
    min-width: 200px;
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.user-dropdown.show {
    display: block;
    animation: dropdownFade 0.3s ease;
}

.user-info {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info h3 {
    color: var(--primary);
    margin-bottom: 8px;
}

.user-info p {
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.8);
    margin: 4px 0;
}

.auth-container, .main-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-box, .calculator-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cute-moon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 50%;
    margin: 0 auto 20px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.input-group {
    position: relative;
    margin: 20px 0;
}

input {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s;
}

input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(255, 183, 245, 0.3);
}

label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s;
    pointer-events: none;
}

input:focus ~ label,
input:valid ~ label {
    top: -10px;
    left: 10px;
    font-size: 12px;
    background: rgba(26, 26, 46, 0.8);
    padding: 0 5px;
    color: var(--accent);
}

.cute-button, .calculate-button, .logout-button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.cute-button:hover, .calculate-button:hover, .logout-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 183, 245, 0.3);
}

.hidden {
    display: none;
}

.moon-display {
    text-align: center;
    margin: 30px 0;
}

#moonImage {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(255, 214, 0, 0.3);
}

.error {
    color: var(--error);
    text-align: center;
    margin-top: 10px;
}

.loading {
    text-align: center;
    margin: 20px 0;
}

.moon-loader {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent);
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes aurora {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .auth-box, .calculator-box {
        padding: 20px;
    }

    #moonImage {
        width: 150px;
        height: 150px;
    }
    
    .user-profile {
        top: 10px;
        left: 10px;
    }
}