*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100dvh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #0d0d0d;
    color: #c8ffc8;
    font-family: 'Segoe UI', sans-serif;
    padding: 10px 10px;
}

.container {
    width: 100%;
    max-width: 800px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 0;
}

.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

button {
    padding: 7px 12px;
    cursor: pointer;
    border: 1px solid currentColor;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    background: transparent;
    transition: background 0.15s, box-shadow 0.15s;
}

button:hover {
    box-shadow: 0 0 8px currentColor;
}

button:disabled {
    color: #555 !important;
    background: transparent !important;
    box-shadow: none !important;
    cursor: not-allowed;
    opacity: 0.5;
}

#record-btn.recording-off {
    color: #4dff4d;
}

#record-btn.recording-off:hover {
    background: #4dff4d22;
}

#record-btn.recording-on {
    color: #ff4444;
    background: #ff444422;
    box-shadow: 0 0 8px #ff4444;
}

#correct-btn {
    color: #4db8ff;
}

#correct-btn:hover {
    background: #4db8ff22;
}

#whatsapp-btn {
    color: #25D366;
}

#whatsapp-btn:hover {
    background: #25D36622;
}

#copy-btn {
    color: #ffdd44;
}

#copy-btn:hover {
    background: #ffdd4422;
}

#undo-btn {
    color: #c8ffc8;
}

#undo-btn:hover {
    background: #c8ffc822;
}

.btn-pair {
    display: flex;
    gap: 8px;
}

.btn-pair button {
    flex: 1;
}

#info-btn {
    color: #aaaaaa;
}

#info-btn:hover {
    background: #aaaaaa22;
}

#del-btn {
    color: #ff4444;
}

#del-btn:hover {
    background: #ff444422;
}

#output {
    width: 100%;
    flex: 1;
    min-height: 120px;
    background: #000;
    color: #4dff4d;
    border: 1px solid #2a6b2a;
    border-radius: 4px;
    padding: 14px;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    outline: none;
    resize: none;
    overflow-y: auto;
    overflow-x: hidden;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: break-word;
    box-shadow: inset 0 0 20px #00ff0010, 0 0 12px #00ff0018;
    caret-color: #4dff4d;
}

#output::placeholder {
    color: #2a6b2a;
}

#msg-dialog {
    border: 1px solid #4dff4d;
    border-radius: 6px;
    background: #0d0d0d;
    color: #c8ffc8;
    font-family: 'Segoe UI', sans-serif;
    padding: 1.2rem 1.5rem;
    min-width: 260px;
    max-width: 90vw;
}

#msg-dialog::backdrop {
    background: rgba(0, 0, 0, 0.7);
}

#msg-dialog h3 {
    margin: 0 0 0.6rem;
}

#msg-dialog p {
    margin: 0 0 1rem;
    white-space: pre-wrap;
}

#msg-dialog #msg-ok {
    display: block;
    margin-left: auto;
    color: #4dff4d;
}

#spinner-dialog {
    border: 1px solid #4db8ff;
    border-radius: 6px;
    background: #0d0d0d;
    color: #c8ffc8;
    font-family: 'Segoe UI', sans-serif;
    padding: 1.2rem 1.5rem;
    min-width: 260px;
    max-width: 90vw;
    text-align: center;
}

#spinner-dialog::backdrop {
    background: rgba(0, 0, 0, 0.7);
}

#spinner-dialog h3 {
    margin: 0 0 0.6rem;
    color: #4db8ff;
}

#spinner-dialog p {
    margin: 0.4rem 0 0;
}

#spinner-dialog h3::after {
    content: '';
    display: inline-block;
    width: 1em;
    animation: dots 1.2s steps(4, end) infinite;
}

@keyframes dots {
    0% {
        content: '🌑';
    }

    10% {
        content: '🌒';
    }

    20% {
        content: '🌓';
    }

    30% {
        content: '🌔';
    }

    40% {
        content: '🌕';
    }

    50% {
        content: '🌖';
    }

    60% {
        content: '🌗';
    }

    70% {
        content: '🌘';
    }

    80% {
        content: '🌚';
    }
}

@media (min-width: 560px) {
    .controls {
        grid-template-columns: repeat(6, auto);
    }

    #del-btn {
        grid-column: auto;
        justify-self: auto;
        margin-left: auto;
    }
}

@media (max-width: 480px) {
    #del-btn {
        margin-left: 0;
    }

    button {
        padding: 12px 10px;
        font-size: 0.9rem;
    }

    #output {
        min-height: calc(100dvh - 280px);
        font-size: 1rem;
    }
}