/* ==========================
   CSS VARIABLES FOR THEMES
   ========================== */
:root {
    --bg-color: #ffffff;
    --text-color: rgb(0, 152, 210);
    --container-bg: rgba(255, 255, 255, 0.8);
    --container-shadow: rgba(0,0,0,0.1);
    --button-bg: rgb(0, 152, 210);
    --button-hover: rgba(0, 144, 205, 0.807);
    --footer-link: rgb(0, 152, 210);
}

[data-theme="dark"] {
    --bg-color: #1e1e1e;
    --text-color: #9696ff;
    --container-bg: rgba(42, 42, 42, 0.85);
    --container-shadow: rgba(0,0,0,0.5);
    --button-bg: #444444;
    --button-hover: #666666;
    --footer-link: #9696ff;
}

/* ==========================
   RESET & GENERAL STYLES
   ========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
    overflow-x: hidden;
}

/* ==========================
   MIDDLE CONTAINER
   ========================== */
.container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
    padding: 20px 30px;
    background-color: var(--container-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 10px;
    box-shadow: 0 4px 10px var(--container-shadow);
    text-align: center;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.container h1 {
    margin: 15px 0;
}

.container p {
    margin: 8px 0;
}

.container a {
    color: var(--text-color);
    font-weight: bold;
    text-decoration: none;
}

.container a:hover {
    text-decoration: underline;
}

/* ==========================
   LOGO
   ========================== */
.logo {
    max-width: 500px;
    width: 80%;
    margin-bottom: 10px;
}

/* ==========================
   THEME TOGGLE SWITCH
   ========================== */
.top-right {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--button-bg);
    transition: 0.4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--button-hover);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* ==========================
   FOOTER
   ========================== */
footer {
    position: fixed;
    bottom: 10px; /* raised a bit from bottom */
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 10px 15px;
    font-size: 0.85rem; /* slightly smaller font */
    background-color: var(--container-bg);
    box-shadow: 0 -2px 10px var(--container-shadow);
    flex-wrap: wrap; /* allow wrapping on small screens */
}

footer a {
    color: var(--footer-link);
    text-decoration: none;
    font-weight: bold;
    margin: 2px 5px; /* spacing when wrapped */
}

footer a:hover {
    text-decoration: underline;
}

/* ==========================
   RESPONSIVE FIXES
   ========================== */
@media (max-width: 500px) {
    .container {
        padding: 15px 20px;
    }

    .logo {
        width: 90%;
    }

    footer {
        font-size: 0.8rem;
        gap: 10px;
    }
}