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

body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #1A1A1D;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

header {
    top: 0;
    z-index: 1000;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: #1A1A1D;
    position: sticky;
}

header h1 {
    color: #fff;
    font-size: 24px;
    margin: 0;
}

header h1 a {
    color: #fff;
    text-decoration: none;
}

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger i {
    font-size: 24px;
    color: #fff;
}

.nav {
    display: flex;
}

.nav.open {
    display: block;
}

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

.nav-link {
    text-decoration: none;
    color: #fff;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #FF5722;
}

@media (max-width: 767px) {

    .hamburger {
        display: flex;
        align-items: center;
    }

    .nav {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 70vw;
        background-color: #1A1A1D;
        transform: translateX(100%);
        transition: transform 0.2s ease-in-out;
        padding-top: 80px;
        z-index: 999;
    }

    .nav.open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }
}

h1 {
    margin-bottom: 10px;
    color: #fff;
}

.subtitle {
    color: #bbb;
    margin-bottom: 20px;
}

.controls {
    margin-bottom: 20px;
}

.btn-group {
    margin-top: 10px;
}

input[type="number"] {
    padding: 10px;
    margin: 5px;
    font-size: 16px;
    width: 185px;
    border: 2px solid #666;
    border-radius: 8px;
    background-color: #2a2a2e;
    color: white;
    text-align: center;
    transition: all 0.3s ease;
}

input[type="number"]:focus {
    border-color: orangered;
    outline: none;
}

button {
    padding: 10px 15px;
    font-size: 15px;
    margin: 5px;
    cursor: pointer;
    background: linear-gradient(135deg, #E65100, #BF360C);
    color: white;
    border: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

button:hover {
    background: linear-gradient(135deg, #FF8A00, #FF5722);
    transform: translateY(-2px);
}

.queue-item {
    min-width: 80px;
    padding: 10px;
    margin: 5px;
    background: linear-gradient(135deg, #FF8A00, #FF5722);
    color: white;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: bold;
    text-align: center;
}

.queue-stats-wrapper {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

@media (max-width: 767px) {
    .queue-stats-wrapper {
        flex-direction: column;
        align-items: center;
    }
}

.queue-container {
    display: flex;
    align-items: center;
    min-height: 120px;
    width: 520px;
    max-width: 95%;
    margin: 0 auto 20px;
    border: 2px solid orangered;
    border-radius: 12px;
    padding: 10px;
    background-color: #2b2b2f;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    overflow-x: auto;
}

.stats {
    background: #2b2b2f;
    padding: 15px;
    width: 250px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
    border-radius: 8px;
    border: 2px solid orangered;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    color: white;
    margin-top: 0;
    flex: 1;
}

.learn-more {
    background-color: #2b2b2f;
    padding: 15px;
    border-radius: 8px;
    width: 250px;
    margin: auto;
    border: 2px solid orangered;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    margin-bottom: 60px;
    margin-top: 0;
    flex: 1;
}

.learn-more h2 {
    color: orangered;
}

.learn-more p {
    color: #bbb;
    margin: 10px 0;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
}

.popup {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    max-width: 90%;
    width: 500px;
    margin: 80px auto;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #E65100, #BF360C);
    color: white;
    font-size: 16px;
    text-align: left;
    line-height: 1.5;
    animation: fadeIn 0.4s ease;
}

.popup h2 {
    color: #fff;
    margin-bottom: 15px;
    text-align: center;
}

.popup p {
    color: #ddd;
    text-align: center;
}

.close {
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 25px;
    cursor: pointer;
}

@media (max-width: 600px) {
    .popup {
        width: 80%;
        font-size: 14px;
    }

    .learn-more {
        width: 75%;
    }
}