/* =========================
   GLOBAL STYLE
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

body {
    background: radial-gradient(circle at top, #0d0d20 0%, #0a0a15 100%);
    color: #fff;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* =========================
   NAVBAR
========================= */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(12, 12, 29, 0.7);
    backdrop-filter: blur(10px);
    padding: 15px 50px;
    box-shadow: 0 2px 10px rgba(0, 224, 255, 0.1);
}

nav .logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

nav .logo img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

nav .logo span {
    font-size: 1.4rem;
    font-weight: 600;
    color: #00e0ff;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

nav ul li a {
    color: #ccc;
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
    padding: 6px 10px;
    border-radius: 6px;
}

nav ul li a:hover,
nav ul li a.active {
    color: #00e0ff;
}

/* =========================
   MAIN CONTAINER
========================= */
.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    animation: fadeIn 1.5s ease;
    padding: 0 20px;
}

.container h1 {
    font-size: 2.2rem;
    color: #00e0ff;
    margin-bottom: 15px;
}

.container p {
    color: #aaa;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* =========================
   SIGN-IN BUTTON
========================= */
#googleSignInBtn {
    background: linear-gradient(90deg, #00e0ff, #0077ff);
    color: #fff;
    font-size: 1rem;
    padding: 12px 28px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: 0.3s ease;
    font-weight: 600;
    box-shadow: 0 0 10px rgba(0, 224, 255, 0.3);
}

#googleSignInBtn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 224, 255, 0.5);
}

/* =========================
   FOOTER (optional)
========================= */
footer {
    text-align: center;
    padding: 15px 0;
    color: #777;
    font-size: 0.9rem;
    border-top: 1px solid rgba(0, 224, 255, 0.1);
}

/* =========================
   ANIMATIONS
========================= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 10px;
        padding: 15px 20px;
    }

    .container h1 {
        font-size: 1.8rem;
    }

    #googleSignInBtn {
        padding: 10px 24px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .container h1 {
        font-size: 1.6rem;
    }

    .container p {
        font-size: 0.95rem;
    }

    #googleSignInBtn {
        width: 80%;
        max-width: 250px;
    }
}

body {
    background: radial-gradient(circle at top, #0d0d20 0%, #0a0a15 100%);
    background-attachment: fixed;
    background-size: cover;
    color: #fff;
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 30%, rgba(0, 224, 255, 0.08), transparent 70%),
        radial-gradient(circle at 70% 70%, rgba(0, 119, 255, 0.08), transparent 70%);
    animation: moveBg 10s infinite alternate;
    z-index: 0;
}

@keyframes moveBg {
    from {
        background-position: 0% 0%;
    }

    to {
        background-position: 100% 100%;
    }
}