:root {
    --bg-app: #050505;
    --bg-sidebar: #0f0f0f;
    --border: #222;
    --text-main: #eee;
    --text-dim: #666;
    --accent: #ffffff; /* Stark White for Pro look */
    --accent-text: #000000;
    --font-ui: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --sidebar-w: 260px;
}

body {
    margin: 0; overflow: hidden;
    background: var(--bg-app);
    font-family: var(--font-ui);
    color: var(--text-main);
}

/* --- PROMPT --- */
#camera-prompt-overlay, #error-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0, 0, 0, 0.85); display: flex; justify-content: center; align-items: center;
    backdrop-filter: blur(5px);
}
.prompt-content, .error-content {
    background: #111; border: 1px solid var(--border); padding: 40px; border-radius: 8px;
    text-align: center; max-width: 400px; box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.prompt-content h2, .error-content h2 { margin-top: 0; font-size: 1.2rem; color: #fff; letter-spacing: 1px; }
.prompt-content p, .error-content p { color: #888; font-size: 0.9rem; margin-bottom: 25px; line-height: 1.5; }
.prompt-actions { display: flex; gap: 15px; }

/* --- LOADER --- */
#loader {
    position: fixed; inset: 0; z-index: 999;
    background: #000; display: flex; justify-content: center; align-items: center;
}
.loader-content { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.spinner {
    width: 24px; height: 24px; border: 2px solid #333;
    border-top-color: #fff; border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.loader-text { font-family: var(--font-mono); font-size: 0.7rem; color: #666; letter-spacing: 2px; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* --- HEADER --- */
header {
    position: absolute; top: 20px; left: calc(var(--sidebar-w) + 30px);
    transition: left 0.4s ease; z-index: 50; pointer-events: none;
}
/* Move header when sidebar is closed */
body.menu-closed header { left: 30px; }

header h1 {
    font-size: 1rem; font-weight: 400; letter-spacing: 1px; margin: 0;
    color: #666;
}
header h1 strong { color: #fff; font-weight: 600; }

#status {
    display: flex; align-items: center; gap: 8px; margin-top: 5px;
}
.status-dot { width: 6px; height: 6px; background: #333; border-radius: 50%; }
#status-text { font-family: var(--font-mono); font-size: 0.7rem; color: #444; }

/* --- SIDEBAR --- */
#sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: var(--sidebar-w);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    z-index: 100;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow: 10px 0 30px rgba(0,0,0,0.5);
}

/* Collapsed State */
#sidebar.collapsed { transform: translateX(-100%); }

.sidebar-scroll {
    height: 100%; overflow-y: auto; padding: 24px; box-sizing: border-box;
}
/* Hide scrollbar */
.sidebar-scroll::-webkit-scrollbar { display: none; }

/* TOGGLE BUTTON */
#sidebar-toggle {
    position: absolute; top: 50%; right: -24px;
    width: 24px; height: 48px;
    background: var(--bg-sidebar);
    border: 1px solid var(--border); border-left: none;
    border-radius: 0 6px 6px 0;
    color: #666; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.6rem; transition: 0.2s;
}
#sidebar-toggle:hover { color: #fff; background: #1a1a1a; }
/* Flip arrow when collapsed */
#sidebar.collapsed #sidebar-toggle { transform: scaleX(-1); } 

/* --- TOOLS UI --- */
.tool-section { margin-bottom: 30px; }
.section-label {
    font-family: var(--font-mono); font-size: 0.65rem; color: #444;
    margin-bottom: 12px; letter-spacing: 1px; font-weight: 700;
}

.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 8px; }
.three-col { grid-template-columns: 1fr 1fr 1fr; }

.tool-btn {
    background: transparent; border: 1px solid var(--border);
    color: var(--text-dim); padding: 10px; border-radius: 4px;
    cursor: pointer; font-family: var(--font-ui); font-size: 0.8rem; font-weight: 500;
    transition: all 0.2s;
}
.tool-btn:hover { border-color: #444; color: #fff; }

/* ACTIVE STATE: High Contrast White */
.tool-btn.active {
    background: var(--accent); color: var(--accent-text); border-color: var(--accent);
    box-shadow: 0 2px 10px rgba(255,255,255,0.1); font-weight: 600;
}

.tool-btn.danger:hover { border-color: #ff3333; color: #ff3333; }
.tool-btn.sm { font-size: 0.7rem; padding: 6px; }

/* Sub-menu */
.sub-menu { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; margin-bottom: 8px; padding: 4px; background: #111; border-radius: 4px; }

/* TABS & INPUTS */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.tab-btn {
    flex: 1; background: none; border: none; color: #555; padding: 8px;
    cursor: pointer; font-size: 0.75rem; border-bottom: 2px solid transparent;
}
.tab-btn.active { color: #fff; border-bottom-color: #fff; }

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.3s; }
@keyframes fadeIn { from {opacity: 0; transform: translateY(-5px);} to {opacity:1; transform:translateY(0);} }

input[type="text"] {
    width: 100%; background: #000; border: 1px solid var(--border);
    color: #fff; font-family: var(--font-mono); padding: 8px;
    border-radius: 4px; box-sizing: border-box; font-size: 0.8rem;
}
input[type="text"]:focus { outline: none; border-color: #666; }

.inp-group { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.lbl { font-family: var(--font-mono); color: #444; font-size: 0.7rem; width: 10px; }

.slider-box { margin-top: 10px; }
.slider-row { display: flex; justify-content: space-between; font-size: 0.75rem; color: #666; margin-bottom: 4px; }
.val { font-family: var(--font-mono); color: #fff; }
input[type="range"] { width: 100%; accent-color: #fff; height: 2px; }

.action-btn {
    width: 100%; background: #fff; color: #000; border: none; padding: 10px;
    border-radius: 4px; font-weight: 600; cursor: pointer; margin-top: 15px;
}
.action-btn.outline { background: transparent; border: 1px solid var(--border); color: #fff; }
.action-btn.outline:hover { border-color: #fff; }

/* PALETTE */
.palette { display: flex; gap: 10px; margin-top: 15px; }
.color-swatch { width: 24px; height: 24px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; }
.color-swatch.active { border-color: #fff; transform: scale(1.2); }

/* AI RECONSTRUCTION */
@keyframes pulse-ai { 0% { opacity: 0.5; color: #888; } 50% { opacity: 1; color: #00f2ff; text-shadow: 0 0 5px #00f2ff; } 100% { opacity: 0.5; color: #888; } }
.ai-processing { animation: pulse-ai 1.5s infinite; font-family: var(--font-mono) !important; font-size: 0.7rem !important; }

/* CAMERA */
.camera-container {
    position: fixed; bottom: 20px; right: 20px; width: 200px; height: 150px;
    background: #000; border: 1px solid #333; border-radius: 8px; overflow: hidden;
}
#webcam { width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); opacity: 0.6; }
.cam-overlay {
    position: absolute; bottom: 8px; left: 8px;
    font-family: var(--font-mono); font-size: 0.6rem; color: #fff;
    display: flex; align-items: center; gap: 6px;
}
.rec-dot { width: 6px; height: 6px; background: red; border-radius: 50%; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.5; } }