/**
 * Projector Lens & Lux - Style
 * 鐳射投影視覺風格，具科幻與玻璃擬態
 */

:root {
    /* 核心色彩 */
    --bg-dark: #00040a;
    --bg-panel: rgba(8, 12, 20, 0.75);

    /* 鐳射科技色系 */
    --accent-primary: #3b82f6;
    /* Royal Blue */
    --accent-secondary: #0ea5e9;
    /* Sky Blue */
    --accent-warn: #eab308;
    /* Laser Amber */
    --accent-danger: #ef4444;
    /* Alert Red */

    --text-main: #f0f4fa;
    --text-muted: #64748b;

    /* 玻璃凝態特效 */
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);

    /* 字體 */
    --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "Courier New", monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-ui);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    user-select: none;
}

/* =========================================
   Background Ambient
   ========================================= */
.tech-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: radial-gradient(circle at center, #020617 0%, #000000 100%);
}

.perspective-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center bottom;
    transform: perspective(1000px) rotateX(75deg) translateY(100px) scale(3);
    transform-origin: bottom center;
}

.laser-beam {
    position: absolute;
    top: 50%;
    left: 0%;
    width: 100%;
    height: 2px;
    background: rgba(14, 165, 233, 0.5);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.8), 0 0 40px rgba(14, 165, 233, 0.3);
    transform: translateY(-50%) rotate(-15deg);
    opacity: 0.2;
    pointer-events: none;
}

/* =========================================
   Top Bar
   ========================================= */
.topbar {
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-shrink: 0;
}

.glitch-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: #fff;
    text-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-secondary);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.5;
    }
}

.status-text {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-secondary);
    letter-spacing: 1px;
}

/* =========================================
   Dashboard Layout
   ========================================= */
.dashboard {
    display: grid;
    grid-template-columns: 340px 1fr 340px;
    gap: 1rem;
    padding: 1rem;
    height: calc(100vh - 64px);
}

.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header,
.config-panel h2 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.02);
}

.panel-header h2,
.config-panel h2 {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* =========================================
   Config Panel (Left)
   ========================================= */
.config-panel {
    overflow-y: auto;
}

#calc-form {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.config-section h3 {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group.box-select {
    grid-column: 1 / -1;
    margin-bottom: 0.5rem;
}

.form-group label {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-group input,
.form-group select {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 0.6rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    transition: var(--trans-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

.separator {
    height: 1px;
    background: var(--glass-border);
    margin: 0.25rem 0;
}

.hidden {
    display: none !important;
}

/* Toggles */
.mode-toggle,
.view-toggles {
    display: flex;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 6px;
    padding: 2px;
}

.mode-btn,
.view-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--trans-fast);
}

.mode-btn.active,
.view-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.huge-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(14, 165, 233, 0.1));
    border: 1px solid var(--accent-primary);
    color: #fff;
    font-weight: 800;
    font-size: 0.9rem;
    letter-spacing: 2px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.15);
}

.huge-btn:hover {
    background: var(--accent-primary);
    color: #fff;
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.6);
}

/* =========================================
   Visual Center Panel (Canvas)
   ========================================= */
.visual-panel {
    position: relative;
    background: radial-gradient(circle at center, rgba(8, 12, 20, 0.4) 0%, rgba(2, 6, 10, 0.8) 100%);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.view-controls {
    flex-wrap: wrap;
    gap: 1rem;
}

.canvas-container {
    flex: 1;
    position: relative;
    display: block;
    overflow: hidden;
}

#optics-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* =========================================
   Hover Inspector (Tooltip)
   ========================================= */
.hover-box {
    position: fixed;
    z-index: 9999;
    background: rgba(10, 15, 20, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--accent-primary);
    border-radius: 8px;
    padding: 0.5rem;
    pointer-events: none;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8), 0 0 15px rgba(59, 130, 246, 0.3);
    transition: opacity 0.15s;
    /* initial placement updated by js */
}

.hover-box.hidden {
    opacity: 0;
}

.ins-data {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.hl-data {
    color: #fff;
    font-weight: bold;
    margin-left: 5px;
}

/* =========================================
   Report Panel (Right)
   ========================================= */
.report-panel {
    overflow-y: auto;
}

.highlight-group {
    padding: 1.25rem;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
    border-bottom: 1px solid var(--glass-border);
    text-align: center;
}

.data-title {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.data-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
}

.data-value.mega {
    font-size: 2rem;
    color: var(--accent-secondary);
    text-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
    margin: 0.3rem 0;
}

.data-value.warning {
    color: var(--accent-warn);
}

.data-value.danger {
    color: var(--accent-danger);
}

.units {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: normal;
}

.data-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.data-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--glass-border);
}

.data-card {
    background: rgba(8, 12, 20, 0.9);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Warning Box */
.processor-warning {
    margin: 1rem;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.15);
    border-left: 3px solid var(--accent-danger);
    color: var(--accent-danger);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
    animation: flash 2s infinite;
}

@keyframes flash {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Toast */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: rgba(10, 15, 20, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--accent-primary);
    color: #fff;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.toast.show {
    transform: translateX(0);
}

.toast.hide {
    opacity: 0;
    transform: translateX(120%);
}