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

body {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    background: linear-gradient(90deg, #000428 0%, #004e92 100%)!important;
    color: white;
    overflow: hidden;
}

.container {
    text-align: center;
    padding: 20px;
    width: 100%;
    margin-top: -100px;
}

h1 {
    font-size: clamp(1.5rem, 5vw, 3.5rem);
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.countdown {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 1rem 0;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    flex: 1 1 150px;
    margin: 0 0.5rem; 
    max-width: 200px; 
    text-align: center;
}
.number {
    z-index: 10;
    font-size: clamp(2rem, 5vw, 5rem);
    font-weight: bold;
    margin-bottom: 1rem;
}

.label {
    font-size: clamp(0.8rem, 1.8vw, 1.4rem);
    text-transform: uppercase;
    letter-spacing: min(0.5vw, 3px);
    opacity: 0.8;
}

.footer {
    position: absolute;
    bottom: 20px; 
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.8;
    font-size: clamp(0.8rem, 2vw, 1rem);
    color: white;
    text-align: center;
    padding: 1rem;
    width: 100%;
}

@media (max-width: 400px) {
    .container {
        padding: 10px;
    }
    
    .countdown {
        gap: 0.8rem;
        padding: 0 10px;
    }

    .countdown-item {
        padding: 0.8rem;
    }

    .number {
        font-size: clamp(1.2rem, 5vw, 2.5rem);
        margin-bottom: 0.5rem;
    }

    .label {
        font-size: clamp(0.6rem, 2vw, 1rem);
        letter-spacing: 1px;
    }
}

#examSelect {
    display: block;
    margin: 20px auto;
    padding: 12px 20px;
    font-size: 16px;
    border: none;
    border-radius: 20px;
    width: 80%;
    max-width: 800px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s, box-shadow 0.3s;
}

#examSelect:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
}

#examSelect:hover {
    outline: none;
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
}

#examSelect option {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.button {
    margin: 10px 0;
    padding: 10px 20px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    border-radius: 20px;
    font-size: 1rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.button:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 123, 255, 0.5);
}

#notification {
    visibility: hidden;
    min-width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 5px;
    padding: 16px;
    position: fixed;
    z-index: 10;
    left: 50%;
    bottom: 30px;
    font-size: 1em;
    opacity: 0;
    transition: opacity 1s;
    box-shadow: inset 0px 0px 5px 0px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transform: translateX(-50%);
}

#notification.show {
    visibility: visible;
    opacity: 1;
}