/* style.css - The Unified Cyberpunk HUD Skin */

:root {
    --neon: #00f2ff;
    --dark-blue: #0062ff;
    --bg-black: #05050a;
    --border-dim: rgba(0, 242, 255, 0.2);
    --observe-green: #00ff88;
    --pulse-blue: rgba(0, 242, 255, 0.4);
    --error-red: #ff4444;
}

/* Base Layout & Grid Background */
body {
    background-color: var(--bg-black);
    background-image: linear-gradient(rgba(0, 242, 255, 0.05) 1px, transparent 1px), 
                      linear-gradient(90deg, rgba(0, 242, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
}

/* Main Terminal Container */
.container {
    max-width: 950px;
    width: 100%;
    background: rgba(5, 5, 15, 0.95);
    border: 1px solid var(--border-dim);
    border-left: 4px solid var(--neon);
    box-shadow: 0 0 40px rgba(0,0,0,0.8);
    padding: 25px;
    box-sizing: border-box;
}

/* Typography */
header h1 { 
    color: var(--neon); 
    text-shadow: 0 0 10px var(--neon); 
    text-transform: uppercase; 
    margin: 0 0 15px 0; 
    letter-spacing: 2px;
}

.guide-text { 
    font-size: 0.8rem; 
    line-height: 1.5; 
    color: #ccffff; 
    margin-top: 10px; 
    border-top: 1px solid var(--border-dim); 
    padding-top: 8px; 
}

.guide-text b { 
    color: var(--observe-green); 
    text-shadow: 0 0 5px rgba(0, 255, 136, 0.3); 
}

/* HUD Panels & Sections */
.banner, .controls, .calc-section, .instr-panel, .radio-group, .playback-panel {
    background: rgba(0, 242, 255, 0.03);
    border: 1px solid var(--border-dim);
    padding: 15px;
    margin-bottom: 20px;
}

.instr-panel {
    border: 1px dashed var(--neon);
    font-size: 0.85rem;
}

/* Cyber Buttons - Matched to Audio Lab */
.step-btn {
    background: #000;
    border: 1px solid var(--dark-blue);
    color: var(--neon);
    padding: 8px 15px;
    cursor: pointer;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.75rem;
    /* Subtle 5% slant */
    clip-path: polygon(5% 0, 100% 0, 95% 100%, 0 100%);
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
}

.step-btn:hover { 
    border-color: var(--neon); 
    background: rgba(0, 242, 255, 0.1); 
}

.step-btn.active {
    background: var(--neon);
    color: #000;
    box-shadow: 0 0 15px var(--neon);
}

.btn-stop { 
    border-color: var(--error-red); 
    color: var(--error-red); 
}

.btn-stop:hover {
    background: var(--error-red);
    color: #fff;
    box-shadow: 0 0 15px var(--error-red);
}

.step-btn.small {
    padding: 6px 12px;
    font-size: 0.65rem;
    min-width: 80px;
}

/* Comparison Layout (JPEG Lab) */
.comparison-layout { 
    display: flex !important; 
    flex-direction: row !important; 
    flex-wrap: nowrap !important;
    gap: 15px; 
    width: 100%;
    margin-top: 20px;
}

.comparison-panel { 
    flex: 1; 
    min-width: 0; 
}

.panel-label { 
    font-weight: 900; 
    color: var(--neon); 
    margin-bottom: 8px; 
    text-transform: uppercase; 
    font-size: 0.75rem; 
    letter-spacing: 1px; 
}

/* High-Precision Viewports */
.viewport-frame { 
    background: #000; 
    border: 2px solid var(--border-dim); 
    position: relative; 
    overflow: hidden; 
    cursor: crosshair; 
    height: 300px; 
    max-height: 40vh; 
    width: 100%;
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.viewport-frame.grabbing { cursor: grabbing; }

/* HUD Calculation Cards */
.stat-card { 
    background: rgba(0, 242, 255, 0.05); 
    padding: 15px; 
    border-radius: 4px; 
    border-left: 5px solid var(--observe-green);
}

.stat-val { 
    font-size: 1.1rem; 
    font-weight: bold; 
    color: var(--observe-green); 
    display: block; 
    margin-bottom: 5px; 
}

.formula-display {
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--neon);
    background: rgba(0,0,0,0.5);
    padding: 8px;
    border-radius: 4px;
    margin: 10px 0;
    line-height: 1.4;
    border: 1px solid var(--border-dim);
}

/* Interactive Elements */
select, input[type="range"] {
    background: #000;
    border: 1px solid var(--border-dim);
    color: var(--neon);
    padding: 5px;
}

.seek-hint { 
    font-size: 0.7rem; 
    color: var(--neon); 
    opacity: 0.6; 
    text-align: center; 
    margin-bottom: 15px; 
    text-transform: uppercase; 
}

/* Responsive Handling */
@media (max-width: 700px) {
    .comparison-layout { flex-direction: column !important; }
    .viewport-frame { height: 250px; }
}