:root {
    --bg-color: #1d2021;      
    --text-main: #ebdbb2;     
    --text-dim: #928374;      
    --border-color: #3c3836;  
    --primary-color: #d79921; /* Yellow/Amber */
    --secondary-color: #83a598; /* Blue/Grey */
    --highlight-color: #fe8019; /* Orange */
    --alert-color: #cc241d; /* Red */
    --font-stack: 'Fira Code', monospace;
    --cursor-color: #ebdbb2;
    --scrollbar-thumb: #928374;
    --scrollbar-hover: #d79921;
    
    --ls-dir: #83a598; /* Blue */
    --ls-exec: #b8bb26; /* Green */
    --ls-link: #8ec07c; /* Cyan/Aqua */
    --ls-file: #ebdbb2; /* Standard */
    --ls-perm: #d3869b; /* Purple/Pink */
    --ls-meta: #928374; /* Dim */
}

[data-theme="matrix"] {
    --bg-color: #0d1117;
    --text-main: #c9d1d9;
    --text-dim: #6e7681;
    --border-color: #30363d;
    --primary-color: #39ff14; 
    --secondary-color: #58a6ff; 
    --highlight-color: #f778ba; 
    --alert-color: #ff7b72;     
    --cursor-color: #39ff14;
    
    --ls-dir: #58a6ff;
    --ls-exec: #39ff14;
    --ls-link: #39ff14;
    --ls-file: #c9d1d9;
    --ls-perm: #79c0ff;
    --ls-meta: #6e7681;
}

[data-theme="cyberpunk"] {
    --bg-color: #050a14;
    --text-main: #d4f0f0;
    --text-dim: #546e7a;
    --border-color: #1e293b;
    --primary-color: #00ffff;
    --secondary-color: #00b7eb;
    --highlight-color: #ff00ff;
    --alert-color: #ff3333;
    --cursor-color: #00ffff;
    
    --ls-dir: #00b7eb;
    --ls-exec: #00ffff;
    --ls-link: #00ffff;
    --ls-file: #d4f0f0;
    --ls-perm: #d2a8ff;
    --ls-meta: #546e7a;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-stack);
    font-size: 14px;
    line-height: 1.6;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; border: 2px solid var(--bg-color); }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }

#simple-ui {
    height: 100%;
    overflow-y: auto;
    padding: 40px;
    display: block;
    max-width: 900px;
    margin: 0 auto;

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

#simple-ui::-webkit-scrollbar {
    display: none;
}

.header-block { border-bottom: 2px solid var(--text-dim); padding-bottom: 20px; margin-bottom: 40px; position: relative; }
.title-large { font-size: 24px; color: var(--primary-color); font-weight: 700; margin-bottom: 5px; }
.subtitle { color: var(--text-dim); }

.section-title {
    color: var(--highlight-color);
    font-weight: 700;
    border-bottom: 1px dashed var(--text-dim);
    margin-bottom: 20px;
    padding-bottom: 5px;
    margin-top: 40px;
    display: flex;
    justify-content: space-between;
}

#page-switcher { margin-left: 15px; display: inline-flex; gap: 4px; }
.page-btn {
    cursor: pointer;
    color: var(--text-dim);
    border: 1px solid var(--text-dim);
    padding: 1px 6px;
    font-size: 12px;
    transition: 0.2s;
}
.page-btn:hover { color: var(--primary-color); border-color: var(--primary-color); }
.page-btn-active { color: var(--highlight-color); border-color: var(--highlight-color); cursor: default; }

.simple-link { color: var(--secondary-color); text-decoration: none; border-bottom: 1px dotted var(--secondary-color); cursor: pointer; transition: 0.2s; }
.simple-link:hover { background: var(--secondary-color); color: var(--bg-color); }

.grid-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.item-box { margin-bottom: 20px; }
.item-head { display: flex; justify-content: space-between; font-weight: 700; color: var(--text-main); }
.item-desc { color: var(--text-dim); font-size: 13px; margin-top: 5px; }
.tag { display: inline-block; border: 1px solid var(--text-dim); padding: 2px 6px; font-size: 11px; margin-right: 5px; color: var(--text-dim); margin-top: 5px; }

.has-image { cursor: pointer; }
.has-image:hover .item-head { color: var(--highlight-color); }
.project-img-hint { font-size: 11px; font-weight: 400; }

#img-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 500;
    align-items: center;
    justify-content: center;
}
#img-lightbox.active { display: flex; }
#lightbox-inner {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
#lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border: 1px solid var(--border-color);
}
#lightbox-title {
    color: var(--text-dim);
    font-size: 12px;
}

#mode-toggle {
    position: absolute; top: 0; right: 0;
    cursor: pointer; color: var(--text-dim);
    border: 1px solid var(--text-dim); padding: 5px 10px;
    font-size: 12px; transition: 0.2s;
}
#mode-toggle:hover { color: var(--primary-color); border-color: var(--primary-color); }

/* --- TERMINAL UI --- */
#terminal-ui { display: none; height: 100%; width: 100%; flex-direction: column; }

#nav-bar {
    height: 40px;
    background: rgba(0,0,0,0.2);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px;
    font-size: 12px;
    flex-shrink: 0;
    user-select: none;
    z-index: 20;
}

.nav-group { display: flex; gap: 15px; align-items: center; position: relative; }
.nav-item { cursor: pointer; color: var(--text-dim); font-weight: bold; transition: 0.2s; }
.nav-item:hover { color: var(--primary-color); }

.dropdown-container { position: relative; }
.dropdown-btn { 
    border: 1px solid var(--text-dim); 
    padding: 2px 8px; 
    border-radius: 4px; 
    font-size: 10px; 
    cursor: pointer;
    color: var(--text-dim);
}
.dropdown-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }

#theme-menu {
    position: absolute; top: 25px; left: 0;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    list-style: none; padding: 5px 0;
    display: none; width: 120px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5); z-index: 50;
}
#theme-menu.show { display: block; }
.theme-option { padding: 5px 10px; cursor: pointer; color: var(--text-dim); font-size: 11px; }
.theme-option:hover { background: var(--border-color); color: var(--primary-color); }

#screen {
    flex: 1;
    position: relative;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column; 
}

.content-layer {
    white-space: pre-wrap;
    width: 100%;
    margin-bottom: 10px;
}

#input-container {
    display: flex;
    align-items: center;
    width: 100%;
    flex-shrink: 0;
    padding-top: 10px; 
}

#visual-input { display: inline; outline: none; border: none; white-space: pre; color: var(--text-main); }
#ghost-input { display: inline; color: var(--text-dim); opacity: 0.5; pointer-events: none; white-space: pre; }
#real-input { position: absolute; opacity: 0; top: -1000px; font-size: 16px; }

.cursor-block {
    display: inline-block; width: 10px; height: 1.2em;
    background-color: var(--cursor-color);
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

#vim-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--bg-color);
    z-index: 1000;
    display: none;
    flex-direction: column;
    padding: 20px;
}
#vim-content {
    flex: 1;
    background: transparent;
    border: none;
    resize: none;
    color: var(--text-main);
    font-family: var(--font-stack);
    font-size: 14px;
    outline: none;
}
#vim-status-bar {
    height: 25px;
    background: var(--text-dim);
    color: var(--bg-color);
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 12px;
    font-weight: bold;
}
#vim-mode { margin-right: 15px; text-transform: uppercase; }

.scanlines {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 50%, rgba(0,0,0,0.1) 50%);
    background-size: 100% 4px; pointer-events: none; z-index: 900; display: none;
}
#panic-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: black; z-index: 999; display: none;
    padding: 50px; color: var(--alert-color); font-family: var(--font-stack);
}

.primary { color: var(--primary-color); }
.secondary { color: var(--secondary-color); }
.highlight { color: var(--highlight-color); }
.dim { color: var(--text-dim); }
.alert { color: var(--alert-color); }
.bold { font-weight: 700; }

.ls-row { display: block; white-space: pre; font-family: var(--font-stack); }
.ls-perm { color: var(--ls-perm); }
.ls-meta { color: var(--ls-meta); }
.ls-dir { color: var(--ls-dir); font-weight: 700; }
.ls-file { color: var(--ls-file); }

.ls-exec { 
    color: var(--ls-exec); 
    font-weight: 700; 
    cursor: pointer; 
    text-decoration: none;
}
.ls-exec:hover { 
    background-color: var(--ls-exec); 
    color: var(--bg-color); 
}

.ls-link {
    color: var(--ls-link);
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
}
.ls-link:hover {
    background-color: var(--ls-link); 
    color: var(--bg-color); 
}

.boot-line { display: block; font-family: var(--font-stack); white-space: pre-wrap; margin-bottom: 2px; }
.boot-bracket { color: var(--text-main); font-weight: bold; } 
.boot-ok { color: #b8bb26; font-weight: bold; } 
.boot-text { color: var(--text-main); }

.cmd-link { 
    cursor: pointer; 
    color: var(--highlight-color); 
    font-weight: 700; 
    transition: all 0.1s ease; 
    display: inline-block;
    padding: 0 4px;
    border-radius: 2px;
}
.cmd-link:hover { 
    background-color: var(--highlight-color); 
    color: var(--bg-color); 
    box-shadow: none;
}

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

@media (max-width: 600px) {
    #simple-ui { padding: 20px; }
    .nav-item { display: none; } 
    .ls-row { font-size: 11px; }
}

[data-theme="cyberpunk"] body {
    text-shadow: 0 0 1px rgba(0, 255, 255, 0.2); 
}

[data-theme="cyberpunk"] .title-large,
[data-theme="cyberpunk"] .primary,
[data-theme="cyberpunk"] .highlight,
[data-theme="cyberpunk"] .section-title span:first-child {
    text-shadow: 0 0 4px rgba(0, 255, 255, 0.4);
}

[data-theme="cyberpunk"] .tag,
[data-theme="cyberpunk"] #mode-toggle,
[data-theme="cyberpunk"] .dropdown-btn {
    box-shadow: 0 0 5px rgba(0, 255, 255, 0.15); /* Very low opacity */
    border-color: rgba(0, 255, 255, 0.5);
}

[data-theme="cyberpunk"] .section-title {
    box-shadow: 0 2px 4px -2px rgba(0, 255, 255, 0.3);
}

[data-theme="cyberpunk"] .cursor-block {
    box-shadow: 0 0 5px var(--primary-color);
}

[data-theme="cyberpunk"] .simple-link:hover,
[data-theme="cyberpunk"] .ls-exec:hover, 
[data-theme="cyberpunk"] .cmd-link:hover {
    box-shadow: 0 0 8px rgba(0, 255, 255, 0.4);
    text-shadow: none; 
}