/* Smooth theme transitions */
* {
    transition: background 0.3s ease, color 0.3s ease;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #0b1220;
    color: #e8f1ff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

.container {
    padding: 40px 20px;
    max-width: 700px;
}

.logo {
    max-width: 320px;
    margin-bottom: 30px;
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    color: #7cc7ff;
}

.tagline {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 40px;
}

.contact p {
    margin: 6px 0;
}

a {
    color: #7cc7ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    margin-top: 60px;
    opacity: 0.5;
    font-size: 0.9rem;
}

/* Theme Toggle Button */
#theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #1e2a3a;
    color: #e8f1ff;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s ease, color 0.3s ease;
}

#theme-toggle:hover {
    background: #2f3e52;
}

/* Light Mode */
.light-mode {
    background: #f5f7fa;
    color: #1e2a3a;
}

.light-mode h1 {
    color: #005fa3;
}

.light-mode a {
    color: #0077cc;
}

.light-mode #theme-toggle {
    background: #e8f1ff;
    color: #1e2a3a;
}

.light-mode #theme-toggle:hover {
    background: #d7e4f5;
}