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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: sans-serif;
    background-color: #000000;
}

#app {
    width: 100vw;
    height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
}

@media (min-width: 320px) {
    #app {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        box-shadow: 0 0 10px rgba(0,0,0,0.5);
    }
}

#header {
    height: 50px;
    width: 100%;
    background-color: #000000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    flex-shrink: 0;
    border-bottom: 1px solid #111;
}

#logo-area {
    display: flex;
    align-items: center;
    gap: 6px;
}

#logo-area img {
    height: 28px;
    width: auto;
    object-fit: contain;
}

#logo-text {
    color: #ffffff;
    font-weight: bold;
    font-size: 16px;
    letter-spacing: 0.5px;
}

#center-display {
    flex-grow: 1;
    height: 34px;
    background-color: #121212;
    border-radius: 6px;
    margin: 0 10px;
}

#three-dots {
    width: 30px;
    height: 30px;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
}

#three-dots span {
    display: block;
    width: 4px;
    height: 4px;
    background-color: #ffffff;
    border-radius: 50%;
}

#content {
    flex-grow: 1;
    width: 100%;
    position: relative;
}

#footer {
    height: 60px;
    width: 100%;
    padding: 10px;
    background-color: #000000;
    flex-shrink: 0;
}

#input-container {
    width: 100%;
    height: 100%;
    background-color: #1a1a1a;
    border-radius: 25px;
    display: flex;
    align-items: center;
    padding: 0 10px;
}

#input-container input {
    background: transparent;
    border: none;
    color: white;
    width: 100%;
    padding: 0 10px;
    outline: none;
}

#add-btn, #send-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}