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

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #1a1aff, #cc33ff);
    animation: glowingBackground 5s infinite alternate;
    text-align: center;
}

/* Background Glow Animation */
@keyframes glowingBackground {
    0% { background: linear-gradient(135deg, #1a1aff, #cc33ff); }
    100% { background: linear-gradient(135deg, #3333ff, #ff33cc); }
}

.container {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0px 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 350px;
    width: 100%;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}

/* Heading */
h1 {
    font-size: 22px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

/* Inputs */
input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 8px;
    border: none;
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 16px;
    transition: 0.3s;
}

input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

input:focus {
    background: rgba(255, 255, 255, 0.4);
}

/* Buttons */
button {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: 0.3s;
}

/* Neon Glow Effect */
.glow-btn {
    background: #00e6e6;
    color: white;
    box-shadow: 0px 0px 15px rgba(0, 230, 230, 0.8);
}

.glow-btn:hover {
    background: #00cccc;
    box-shadow: 0px 0px 25px rgba(0, 230, 230, 1);
}

/* Stop Alarm Button */
.stop-btn {
    background: #ff3399;
    color: white;
    box-shadow: 0px 0px 15px rgba(255, 51, 153, 0.8);
}

.stop-btn:hover {
    background: #cc0066;
    box-shadow: 0px 0px 20px rgba(255, 51, 153, 1);
}

/* Reminder Alert */
#alert {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2);
    margin-top: 20px;
    animation: slideIn 0.5s ease-in-out;
}

/* Reminder Image */
#reminder-photo {
    max-width: 100%;
    margin-top: 15px;
    border-radius: 10px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hide elements */
.hidden {
    display: none;
}