* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    scroll-margin-top: 80px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Google Sans";
    background-color: #1e1e1e;
    font-weight: 500;

    color: white;

    padding: 0.7rem;
}

.container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas: 
        "header"
        "main"
        "footer";
    gap: 1.6rem;
}

header { 
    grid-area: header; 
    background: rgba(51, 51, 51, 0.75);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;

    border-radius: 10px;
    padding: 10px 0; 
    position: sticky;
    top: 15px;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
}

.logo {
    margin-left: 1rem;
}

.separator {
    width: 1px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 1rem;
}

.nav-menu {
    margin-right: 1rem;
    display: flex;
    gap: 1.3rem;
}

.nav-link {
    color: #aaa;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

footer { 
    grid-area: footer; 
    background: #333; 
    color: white; 
    border-radius: 15px;
}

main { 
    grid-area: main;
}

main h1 {
    text-align: center;
    font-size: 2rem;
}

.hor-separator {
    width: 60%;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 2rem auto;
}

.card {
    max-width: 600px;
    margin: 2rem auto;
    
    text-align: left;
    
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
    
    padding: 2rem;
    
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card h3 {
    margin-bottom: 1rem;
    color: #fff;
}

.card p {
    color: #ccc;
    line-height: 1.6;
}

.card .card-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    outline: none;
    display: block;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.card .card-input:focus {
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.05);
}

.card textarea.card-input {
    resize: none;
}

.card .card-button {
    width: 100%;
    background: rgba(238, 238, 238, 0.9);
    color: #181818;
    border: none;
    border-radius: 12px;
    padding: 1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: transform 0.2s, background 0.2s;
}

.card .card-button:hover {
    background: #ffffff;
    transform: translateY(-2px);
}

.card .card-button:active {
    transform: translateY(0);
}