/* 
   Origin Axis Precision - Machine Tools & CNC Technology
   W99 Professional Industrial Aesthetics
*/

:root {
    --color-bg: #3A3A3A;           /* 鑄鐵深灰: 床身穩定性 */
    --color-primary: #4682B4;      /* 主軸金屬藍: 冷靜與精確 */
    --color-accent-green: #39FF14; /* 數位控制螢光綠: 代碼與狀態 */
    --color-accent-orange: #FF4500;/* 切削火花橘: 效率與警示 */
    --color-text: #E0E0E0;
    --color-text-muted: #A0A0A0;
    --color-border: #555555;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 重型機械美學：鑄鐵質感與金屬邊框 */
.industrial-card {
    background: linear-gradient(145deg, #333333, #424242);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    box-shadow: 5px 5px 15px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.industrial-card:hover {
    border-left-color: var(--color-accent-green);
    transform: translateY(-5px);
}

/* 標題樣式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #FFFFFF;
}

.section-title {
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
    padding-bottom: 10px;
    margin-bottom: 30px;
}

/* 導航列自定義 */
.navbar {
    background-color: rgba(58, 58, 58, 0.95) !important;
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 900;
    color: var(--color-primary) !important;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--color-text) !important;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin: 0 10px;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent-green) !important;
}

/* 按鈕樣式 */
.btn-industrial {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    font-weight: 700;
    text-transform: uppercase;
    padding: 10px 25px;
    border-radius: 0;
    transition: all 0.3s;
}

.btn-industrial:hover {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 0 15px var(--color-primary);
}

.btn-accent {
    border-color: var(--color-accent-orange);
    color: var(--color-accent-orange);
}

.btn-accent:hover {
    background-color: var(--color-accent-orange);
    color: white;
    box-shadow: 0 0 15px var(--color-accent-orange);
}

/* 數位流光與代碼感 */
.code-text {
    font-family: var(--font-mono);
    color: var(--color-accent-green);
    background: rgba(57, 255, 20, 0.1);
    padding: 2px 5px;
    border-radius: 3px;
}

/* 頁尾 */
footer {
    background-color: #2A2A2A;
    border-top: 4px solid var(--color-primary);
    padding: 50px 0 20px;
}

/* 動畫效果 */
@keyframes scanline {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.scanline-effect {
    position: relative;
    overflow: hidden;
}

.scanline-effect::after {
    content: "";
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(57, 255, 20, 0.05), transparent);
    animation: scanline 4s linear infinite;
    pointer-events: none;
}