:root[data-theme="dark"] {
    --bg-color: #000000;
    --text-color: #ffffff;
    --border-color: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(28, 28, 30, 0.8);
    --card-bg: rgba(28, 28, 30, 0.8);
    --nav-bg: rgba(28, 28, 30, 0.9);
    --button-bg: #0A84FF;
    --button-hover: #0066CC;
    --table-header: #1c1c1e;
    --table-border: rgba(255, 255, 255, 0.2);
    --icon-filter: invert(1);
}

:root[data-theme="light"] {
    --bg-color: #f2f2f7;
    --text-color: #000000;
    --border-color: rgba(60, 60, 67, 0.1);
    --header-bg: rgba(255, 255, 255, 0.8);
    --card-bg: rgba(255, 255, 255, 0.8);
    --nav-bg: rgba(255, 255, 255, 0.9);
    --button-bg: #007AFF;
    --button-hover: #0056b3;
    --table-header: #f2f2f7;
    --table-border: rgba(60, 60, 67, 0.1);
    --icon-filter: invert(0);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(80px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

nav {
    background-color: var(--nav-bg);
    padding: max(1rem, env(safe-area-inset-top)) 1rem 1rem;
    position: fixed;
    width: 100%;
    height: auto;
    min-height: 44px;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 0.5px solid var(--border-color);
    box-sizing: border-box;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin: 8px;
    padding: 0;
    gap: 12px;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    text-decoration: none;
    color: var(--button-bg);
    font-size: 15px;
    font-weight: 400;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background-color 0.2s;
    white-space: nowrap;
}

nav ul li a:active {
    opacity: 0.7;
}
.header {
    top: 70px; /* Space below the nav */
    left: 0;
    right: 0;
    z-index: 999; /* Ensure it overlays other elements */
    margin-top: 0; /* Remove unnecessary margin */
    background: var(--header-bg);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 20px 16px;

}
.sub-header {
    position: fixed; /* Makes the header stick to the top */
    top: 170px; /* Space below the nav */
    right: 0;
    left: 0;
    z-index: 999; /* Ensure it overlays other elements */
    margin-top: 0; /* Remove unnecessary margin */
    background: var(--header-bg);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 20px 16px;

}

.header h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.01em;
}
footer {
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    text-align: center;
    font-size: clamp(12px, 3.5vw, 14px);
    border-top: 1px solid var(--border-color);
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
}

.container {
    text-align: center;
    margin-top: 10px;
    margin-bottom: 80px;
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    max-width: 100%;
    overflow-x: auto;
}

label {
    font-size: clamp(20px, 4vw, 17px);
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

input[type="text"],select {
    font-size: clamp(16px, 4vw, 17px);
    padding: 12px 16px;
    width: 100%;
    max-width: 300px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin-bottom: 16px;
}

button {
    font-size: clamp(16px, 4vw, 17px);
    padding: 12px 24px;
    border-radius: 10px;
    border: none;
    background-color: var(--button-bg);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
    max-width: 300px;
}

button:hover {
    background-color: var(--button-hover);
}

.table-wrapper {
    margin-top: 90px;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    margin: 20px auto;
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
    min-width: 800px;
    border-radius: 12px;
    overflow: hidden;
}

th, td {
    border: 1px solid var(--table-border);
    padding: 12px;
    text-align: center;
    font-size: clamp(14px, 3.5vw, 16px);
    white-space: pre-wrap;
}

th {
    background-color: var(--table-header);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.hidden {
    display: none;
}

.header {
    text-align: center;
    margin-top: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.header h1 {
    justify-content: center;
    margin-right: 10px;
}

.header img {
    width: clamp(40px, 10vw, 60px);
    height: auto;
}

.header h1 {
    font-size: clamp(16px, 4vw, 20px);
    font-weight: 600;
    margin: 0;
}

#theme-toggle img {
    width: clamp(18px, 5vw, 20px);
    height: clamp(18px, 5vw, 20px);
    filter: var(--icon-filter);
}

@media (max-width: 768px) {
    .container {
        padding: 11px;
        margin-top: 10px;
    }

    table {
        font-size: 14px;
        margin-top: 80px
    }
    .button {
        border-radius: 16px;
    }
    th, td {
        padding: 8px;
    }
    .table-wrapper {
        margin-top: 20px;
    }
    .sub-header{
        top: 155px;
    }
    .header img {
        width: 40px;
        height: auto;
    }
   .header{
       margin-top: 70px;
   }
    .sub-header{
        margin-top: 0;
        font-size: 8px;
    }
    nav ul {
        list-style: none;
        display: flex
    ;
        justify-content: left;
        align-items: center;
        flex-wrap: wrap;
        margin: 0;
        padding: 0;
        gap: 12px;
    }
    nav {
        background-color: var(--nav-bg);
        padding: max(1rem, env(safe-area-inset-top)) 1rem 1rem;
        position: fixed;
        width: 100%;
        height: 80px;
        min-height: 44px;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 0.5px solid var(--border-color);
        box-sizing: border-box;
    }

}

/* Remove default list styles */
nav ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Space between menu items */
nav ul li {
    margin: 0 10px;
}

/* Stick the theme toggle button to the right */
#theme-toggle {
    position: absolute;
    right: 20px; /* Aligns to the right corner */
    top: 50%;
    transform: translateY(-50%);
}