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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #082d2d 0%, #368862 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

/* Header Section */
.header {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #667eea;
    font-size: 2rem;
}

/* User Profile Section */
.user-section {
    display: none;
    align-items: center;
    gap: 15px;
}

.user-section.active {
    display: flex;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-profile-pic {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #667eea;
}

.user-name {
    font-weight: 600;
    color: #333;
}

/* Login Section */
.login-section {
    background: white;
    padding: 60px 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    margin: 80px auto;
}

.login-section.hidden {
    display: none;
}

.login-section h2 {
    color: #333;
    margin-bottom: 10px;
    font-size: 2.5rem;
}

.login-section p {
    color: #666;
    margin-bottom: 40px;
    font-size: 1.2rem;
}

#g_id_signin {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-google {
    background: #18386d;
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
}

.btn-google:hover {
    background: #194b33;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(100, 125, 164, 0.3);
}

.btn-logout {
    background: #ff4757;
    color: white;
}

.btn-logout:hover {
    background: #ee5a6f;
}

.btn-submit {
    background: linear-gradient(135deg, #0f4431 0%, #68bb38 100%);
    color: white;
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border-radius: 10px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

/* App Content */
.app-content {
    display: none;
}

.app-content.active {
    display: block;
}

/* Mood Form Section */
.mood-form-section {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.mood-form-section h2 {
    color: #333;
    margin-bottom: 25px;
    font-size: 1.8rem;
    text-align: center;
}

#mood-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group input {
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    width: 100%;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Mood Options */
.mood-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
}

.mood-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mood-option:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.mood-option input[type="radio"] {
    display: none;
}

.mood-option input[type="radio"]:checked + label {
    color: #667eea;
}

.mood-option.selected {
    border-color: #667eea;
    background: #f8f9ff;
}

.mood-icon {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.mood-label {
    font-weight: 600;
    color: #333;
}

/* Mood History Section */
.mood-history-section {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.mood-history-section h3 {
    color: #333;
    margin-bottom: 25px;
    font-size: 1.6rem;
    text-align: center;
}

#mood-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mood-item {
    padding: 25px;
    border: 2px solid #f0f0f0;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    background: #fafafa;
}

.mood-item:hover {
    border-color: #667eea;
    background: #f8f9ff;
    transform: translateX(5px);
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.2);
}

.mood-item-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mood-item-icon {
    font-size: 2rem;
}

.mood-item-details {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.mood-item-mood {
    font-weight: 700;
    color: #333;
    font-size: 1.1rem;
    text-transform: capitalize;
}

.mood-item-name {
    color: #666;
    font-size: 0.9rem;
}

.mood-item-timestamp {
    color: #999;
    font-size: 0.85rem;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: #999;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.empty-state p {
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .mood-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .mood-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* Loading State */
.loading {
    text-align: center;
    padding: 20px;
    color: #666;
}

/* Success/Error Messages */
.message {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 600;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}