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

body {
    font-family: monospace;
    background: #f5f5f5;
    color: #000;
    height: 100vh;
    overflow: hidden;
}

/* Theme Variables */
body.theme-dark {
    --terminal-bg: #000;
    --terminal-text: #00ff00;
    --terminal-text-dim: #003300;
    --terminal-glow: #00ff00;
}

body.theme-light {
    --terminal-bg: #f5f5f5;
    --terminal-text: #000;
    --terminal-text-dim: #cccccc;
    --terminal-glow: #333333;
}

body {
    background: var(--terminal-bg, #f5f5f5);
    color: var(--terminal-text, #000);
}

.terminal {
    width: 100%;
    height: 100vh;
    padding: 20px;
    background: var(--terminal-bg, #f5f5f5);
    overflow-y: auto;
    color: var(--terminal-text, #000);
}

/* Main Layout */
#main-layout {
    display: flex;
    height: 100vh;
    width: 100%;
}

#content-area {
    flex: 1;
    padding: 20px;

    padding-left: 100px;
    overflow-y: auto;
    max-width: calc(100% - 250px);
}
#sidebar-container{
        border-right: 2px solid var(--terminal-text, #000);

}

#sidebar {
    width: 200px;
    /* border-right: 2px solid var(--terminal-text, #00ff00); */
    padding: 20px;
    overflow-y: auto;
    background: var(--terminal-bg, #f5f5f5);
}

.sidebar-header {
    margin-bottom: 10px;
}

.sidebar-item {
    cursor: pointer;
    padding: 5px 0;
    transition: all 0.1s;
}

.sidebar-item:hover {
    background: var(--terminal-text-dim, #003300);
    text-shadow: 0 0 5px var(--terminal-glow, #00ff00);
    padding-left: 5px;
}

.sidebar-item.active {
    background: var(--terminal-text-dim, #003300);
    text-shadow: 0 0 8px var(--terminal-glow, #00ff00);
}
#loading-screen {
    width: 100%;
    padding-top: 40vh;
}

#loading-screen .terminal-line {
    text-align: center;
}

.terminal-line {
    align-content: center;
    line-height: 1.6;
    margin: 2px 0;
    white-space: pre;
}

/* Progress Bar */
.progress-container {
    margin-top: 10px;
}

#progress-bar {
    color: var(--terminal-text, #00ff00);
}

#progress-empty {
    color: var(--terminal-text-dim, #003300);
}

#progress-percent {
    margin-left: 10px;
    color: var(--terminal-text, #00ff00);
}

/* Welcome Screen */
#welcome-text {
    align-items: center;
    white-space: pre;
    font-size: 14px;
    line-height: 1.4;
    color: var(--terminal-text, #00ff00);
    margin-bottom: 20px;
}

/* Menu and Theme Options */
.menu-item, .theme-option, .theme-switch {
    cursor: pointer;
    transition: all 0.1s;
}

.menu-item:hover, .theme-option:hover, .theme-switch:hover {
    color: var(--terminal-text, #000);
    background: var(--terminal-text-dim, #cccccc);
    text-shadow: 0 0 5px var(--terminal-glow, #333333);
}

/* Theme Modal */
#theme-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    padding: 30px;
    border: 2px solid var(--terminal-text, #00ff00);
    background: var(--terminal-bg, #000);
    max-width: 600px;
}

/* Cursor */
.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0;
    }
}

/* Hide Scrollbar */
::-webkit-scrollbar {
    display: none;
}

* {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Content Screen */
#content-header {
    margin-bottom: 10px;
}

#content-body {
    margin-bottom: 20px;
}

#back-button {
    margin-top: 20px;
    color: var(--terminal-text, #00ff00);
}

/* Responsive Design */
@media screen and (max-width: 390px) {
    /* Small Mobile Layout */
    body {
        overflow-x: hidden;
        width: 100vw;
    }

    #main-layout {
        flex-direction: column;
        overflow-x: hidden;
        width: 100%;
    }

    #sidebar-container {
        border-right: none;
        border-bottom: 2px solid var(--terminal-text, #000);
        width: 100%;
        overflow-x: hidden;
    }

    #sidebar {
        width: 100%;
        padding: 10px;
        overflow-x: hidden;
        white-space: normal;
    }

    .sidebar-header {
        margin-bottom: 10px;
    }

    .sidebar-item {
        display: block;
        margin-bottom: 5px;
        padding: 5px;
    }

    #content-area {
        padding: 10px;
        padding-left: 10px;
        max-width: 100%;
        width: 100%;
        overflow-x: hidden;
    }

    .terminal {
        padding: 8px;
        overflow-x: hidden;
        width: 100%;
    }

    #welcome-text {
        font-size: 6px;
        overflow-x: hidden;
        width: 100%;
        white-space: pre-wrap;
        word-wrap: break-word;
    }

    .terminal-line {
        font-size: 9px;
        white-space: pre-wrap;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    #loading-screen {
        padding-top: 25vh;
        width: 100%;
        overflow-x: hidden;
    }

    .modal-content {
        padding: 15px;
        max-width: 95%;
        width: 95%;
        overflow-x: hidden;
    }

    #theme-screen {
        width: 100%;
        overflow-x: hidden;
    }
}

@media screen and (min-width: 391px) and (max-width: 768px) {
    /* Tablet/Large Mobile Layout */
    #main-layout {
        flex-direction: column;
    }

    #sidebar-container {
        border-right: none;
        border-bottom: 2px solid var(--terminal-text, #000);
        width: 100%;
    }

    #sidebar {
        width: 100%;
        padding: 15px;
        overflow-x: auto;
        white-space: nowrap;
    }

    .sidebar-header {
        display: inline-block;
        margin-right: 20px;
        margin-bottom: 0;
    }

    .sidebar-item {
        display: inline-block;
        margin-right: 15px;
        padding: 5px 10px;
    }

    #content-area {
        padding: 15px;
        padding-left: 15px;
        max-width: 100%;
        overflow-x: hidden;
    }

    .terminal {
        padding: 10px;
    }

    #welcome-text {
        font-size: 10px;
        overflow-x: auto;
    }

    .terminal-line {
        font-size: 12px;
        white-space: pre-wrap;
        word-wrap: break-word;
    }

    #loading-screen {
        padding-top: 30vh;
    }

    .modal-content {
        padding: 20px;
        max-width: 90%;
    }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
    /* Tablet Layout */
    #sidebar {
        width: 180px;
        padding: 15px;
    }

    #content-area {
        padding: 15px;
        padding-left: 50px;
    }

    .terminal-line {
        font-size: 13px;
    }

    #welcome-text {
        font-size: 12px;
    }
}