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

/* Body Styling */
body {
    font-family: 'Arial', sans-serif;
    transition: background-color 0.5s ease, color 0.5s ease, box-shadow 0.5s ease;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden; /* Prevents scrollbar during animation */
}

/* Dark and Light Mode Variables */
:root {
    --background-color: #f4f4f4;
    --text-color: #333;
    --box-background-color: #fff;
    --input-background-color: #f9f9f9;
    --input-border-color: #ccc;
    --button-background-color: #007bff;
    --button-hover-color: #0056b3;
    --link-color: #007bff;
    --link-hover-color: #0056b3;
}

body.dark-mode {
    --background-color: #181818;
    --text-color: #eee;
    --box-background-color: #242424;
    --input-background-color: #333;
    --input-border-color: #555;
    --button-background-color: #3b82f6;
    --button-hover-color: #2563eb;
    --link-color: #3b82f6;
    --link-hover-color: #2563eb;
}

/* Theme Toggle Button */
.theme-toggle {
    position: absolute;
    top: 1vh;
    right: 1vw;
    display: flex;
    align-items: center;
}

#toggle {
    -webkit-appearance: none;
    appearance: none;
    height: 4.25vmin;
    width: 8vmin;
    background-color: #15181f;
    position: absolute;
    right: 0;
    top: 0.5vmin;
    border-radius: 2.2vmin;
    outline: none;
    cursor: pointer;
}

#toggle:after {
    content: "";
    position: absolute;
    height: 3.2vmin;
    width: 3.2vmin;
    background-color: #ffffff;
    top: 0.5vmin;
    left: 0.7vmin;
    border-radius: 50%;
}

.dark-mode #toggle {
    background-color: #ffffff;
}

.dark-mode #toggle:after {
     background-color: transparent;
    box-shadow: 1vmin 1vmin #15181f;
    top: -0.4vmin;
    left: 3vmin;
}

/* Container Styling */
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.flash-container {
    position: absolute;
    display: flex;
    align-items: center;
    top: 1rem;
    left: 1rem;
    z-index: 1000;
    font-size: 250%;
    width: auto;
}

/* Sign-In Box Styling */
.sign-in-box {
    background-color: var(--box-background-color);
    padding: 2rem;
    border-radius: 0.8vmin;
    box-shadow: 0 0.4vh 0.4vh rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 28vw;
    text-align: center;
    opacity: 0;
    transform: translateY(5vh);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.sign-in-box h2 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

/* Input Group Styling */
.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    opacity: 0;
    transform: translateY(2vh);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.input-group input {
    width: 100%;
    padding: 0.75rem;
    color: var(--text-color);
    background-color: var(--input-background-color);
    border: 0.1vmin solid var(--input-border-color);
    border-radius: 0.8vmin;
    font-size: 1rem;
    transition: border-color 0.3s;
    opacity: 0;
    transform: translateY(0.2vh);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.input-group input:focus {
    border-color: var(--button-background-color);
    outline: none;
}

/* Button Styling */
#sign_in_btn, #sign_up_btn {
    display: inline-block;
    color: var(--text-color)
    padding: 0.1vh 0.2vw;
    margin: 0.1vh 0;
    font-size: 1.5vmin;
    font-weight: bold;
    border-radius: 2.5vmin;
    border: 0 solid #007bff;
    height: 5vh;
    width: 10vw;
    transition: background-color 0.1s ease, color 0.1s ease, box-shadow 0.1s ease;
    cursor: pointer;
    text-align: center;
    background-color: #025bee;
}

#sign_up_btn {
    font-size: 1.5vmin;
}

#sign_in_btn:hover, #sign_up_btn:hover {
    background-color: var(--button-hover-color);
}

/* Links Styling */
.links {
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(0.2vh);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.links a {
    color: var(--link-color);
    text-decoration: none;
    margin: 0 0.5rem;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.links a:hover {
    color: var(--link-hover-color);
}

/* Animation delay for staggered effect */
.input-group:nth-child(1) {
    transition-delay: 0.4s;
}
.input-group:nth-child(2) {
    transition-delay: 0.6s;
}
.actions button {
    transition-delay: 0.8s;
}
.links {
    transition-delay: 1s;
}

/* Class to trigger animations */
.sign-in-box.show {
    opacity: 1;
    transform: translateY(0);
}

.sign-in-box.show .input-group label,
.sign-in-box.show .input-group input,
.sign-in-box.show .actions button,
.sign-in-box.show .links {
    opacity: 1;
    transform: translateY(0);
}