:root {
    --bg: #000000;
    --text: #ffffff;
    --border-color: #ffffff;
    --font-family: 'Courier New', Courier, monospace;
    --border-radius: 0;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-family);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
    box-sizing: border-box;
}

.container {
    background-color: var(--bg);
    padding: 2rem;
    border: 2px dotted var(--border-color);
    width: 100%;
    max-width: 700px;
    text-align: center;
}

h1 {
    color: var(--text);
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: normal;
    letter-spacing: 2px;
}

p {
    margin-bottom: 2rem;
    opacity: 0.8;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

/* Custom Switch */
.mode-switch-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}
.switch-labels {
    display: flex;
    gap: 10px;
    font-size: 0.9em;
}
.switch-labels .active {
    text-decoration: underline;
}
.switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 20px;
}
.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg);
    border: 1px dotted var(--border-color);
    transition: .4s;
}
.slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text);
    transition: .4s;
}
input:checked + .slider {
    background-color: var(--bg);
}
input:checked + .slider:before {
    transform: translateX(14px);
}

#carrier-area {
    margin-bottom: 1.5rem;
}

.carrier-wrapper {
    position: relative;
    display: inline-block;
}

#carrier-selector {
    font-size: 2.5rem;
    background: none;
    border: 2px dotted var(--border-color);
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: var(--text);
    transition: background-color 0.2s;
}

#carrier-selector:hover, #carrier-selector:focus {
    background-color: #333;
}

#text-carrier-area textarea {
    width: 100%;
    box-sizing: border-box;
    height: 80px;
}

emoji-picker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 100%;
    margin-top: 10px;
    z-index: 10;
    --background: var(--bg);
    --border-color: var(--border-color);
    --text-color: var(--text);
    border: 1px dotted var(--border-color);
}


.text-areas {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.text-areas textarea {
    width: 100%;
    height: 150px;
    background-color: var(--bg);
    border: 2px dotted var(--border-color);
    color: var(--text);
    padding: 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
}

.text-areas textarea:focus {
    outline: none;
    background-color: #111;
}

.arrow {
    font-size: 2rem;
    color: var(--text);
}

.error {
    color: #ff5555;
    min-height: 1.2em;
    margin-bottom: 1rem;
}

#copy-button {
    background-color: var(--bg);
    color: var(--text);
    border: 2px dotted var(--border-color);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    font-weight: bold;
    transition: background-color 0.2s;
}

#copy-button:hover {
    background-color: #333;
}

#copy-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--bg);
}