.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: white;
    font-size: 16px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.theme-toggle-btn i {
    transition: transform 0.3s ease;
}

.theme-toggle-btn:hover i {
    transform: rotate(180deg);
}


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-primary);
}

body {
    background: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
}


.development-notice {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--background-color);
    padding-top: 100px;
}

.development-content {
    text-align: center;
    max-width: 500px;
    padding: 0 20px;
}

.development-content i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

.development-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 20px;
}

.development-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.btn-back {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(158, 148, 216, 0.3);
}

.btn-back:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(158, 148, 216, 0.4);
}