/* --- Cài đặt chung --- */
html {
    font-size: 16px;
}

body {
    font-family: 'Consolas', 'Monaco', 'Courier New', Courier, monospace;
    font-size: 1rem;
    line-height: 1.4;
    margin: 0;
    transition: color 0.5s, background-color 0.5s; /* Hiệu ứng chuyển theme mượt mà hơn */
    background-color: var(--main-bg);
    color: var(--main-color);
}

/* --- Giao diện Terminal --- */
#terminal {
    padding: 15px;
    height: 100vh;
    box-sizing: border-box;
    overflow-y: auto;
    cursor: text;
    position: relative;
    z-index: 1;
}

#history p {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

#history a {
    text-decoration: underline;
    color: var(--link-color, var(--main-color));
}

#history a:hover {
    opacity: 0.8;
}

#input-line {
    display: flex;
    align-items: center;
}

#prompt {
    margin-right: 8px;
    color: var(--prompt-color, var(--main-color));
}

#command-input {
    background-color: transparent;
    border: none;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    outline: none;
    flex-grow: 1;
    padding: 0;
}

/* --- Con trỏ nhấp nháy --- */
.cursor {
    display: inline-block;
    width: 10px;
    height: 1.2rem;
    animation: blink 1s step-end infinite;
    background-color: var(--main-color);
}

@keyframes blink {
    from, to {
        background-color: transparent;
    }
    50% {
        background-color: var(--main-color);
    }
}

/* --- THÊM MỚI: Kiểu cho trình soạn thảo Nano --- */
#editor-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--main-bg);
    z-index: 100;
    display: flex;
    flex-direction: column;
}

#editor-textarea {
    flex-grow: 1;
    background-color: transparent;
    color: var(--main-color);
    border: none;
    outline: none;
    font-family: inherit;
    font-size: inherit;
    padding: 15px;
    resize: none;
}

#editor-statusbar {
    background-color: var(--main-color);
    color: var(--main-bg);
    padding: 4px 15px;
    font-weight: bold;
    text-align: center;
}


/* --- CÁC THEME MÀU SẮC --- */
:root {
    --main-bg: #000000;
    --main-color: #00ff41;
    --prompt-color: #00ff41;
    --link-color: #33ff66;
}

body.theme-hacker {
    --main-bg: #0d0d0d;
    --main-color: #dc143c;
    --prompt-color: #ff3355;
    --link-color: #ff4561;
}

body.theme-cyberpunk {
    --main-bg: #2a0045;
    --main-color: #00f7ff;
    --prompt-color: #ff00ff;
    --link-color: #00f7ff;
}

body.theme-solarized-light {
    --main-bg: #fdf6e3;
    --main-color: #657b83;
    --prompt-color: #268bd2;
    --link-color: #2aa198;
}

body.theme-dracula {
    --main-bg: #282a36;
    --main-color: #f8f8f2;
    --prompt-color: #50fa7b;
    --link-color: #8be9fd;
}

/* --- Tối ưu cho di động (Responsive) --- */
@media (max-width: 600px) {
    html {
        font-size: 14px;
    }

    #terminal {
        padding: 10px;
    }
}