/* AiWorkForMe - 課程宣傳頁面樣式 */
:root {
    /* 主色系：深藍 + 金屬藍青漸變 */
    --color-bg: #0a192f;
    --color-surface: #112240;
    --color-surface-light: #1d3a5c;
    --color-text: #ffffff;
    --color-text-secondary: #a8b2d1;
    --color-accent: #00fff7;
    --color-accent-secondary: #0077ff;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0077ff 100%);
    --gradient-text: linear-gradient(90deg, #00d4ff, #00fff7);

    /* 邊框與陰影 */
    --border-radius: 0;
    --border-radius-sm: 4px;
    --border-width: 2px;
    --shadow: 0 10px 30px rgba(0, 119, 255, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 119, 255, 0.25);

    /* 字體 */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* 間距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
}

/* 重置與基礎樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* 背景幾何裝飾 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 119, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 119, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: -2;
}

.bg-accent-geom {
    position: fixed;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: var(--gradient-primary);
    opacity: 0.03;
    transform: rotate(45deg);
    z-index: -1;
    pointer-events: none;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    position: relative;
    z-index: 1;
}

/* 導航 */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
    border-bottom: var(--border-width) solid var(--color-surface);
    margin-bottom: var(--space-lg);
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.5px;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-cta {
    padding: 0.8rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s;
}

.cta-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 英雄區塊 */
.hero {
    text-align: center;
    padding: var(--space-xl) 0;
    margin-bottom: var(--space-xl);
}

.hero-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-surface);
    border-left: 4px solid var(--color-accent);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    letter-spacing: -1px;
}

.title-highlight {
    position: relative;
    display: inline-block;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--gradient-primary);
    z-index: -1;
    transform: skewX(-15deg);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--color-text-secondary);
    max-width: 800px;
    margin: 0 auto var(--space-lg);
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: var(--border-width) solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-surface-light);
}

.btn-primary:hover, .btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    color: var(--color-surface-light);
    opacity: 0.5;
}

/* 通用區塊樣式 */
.section {
    margin-bottom: var(--space-xl);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 交付成果區塊 */
.delivery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.delivery-card {
    background: var(--color-surface);
    padding: var(--space-md);
    border-left: 4px solid var(--color-accent-secondary);
    transition: transform 0.2s, box-shadow 0.2s;
}

.delivery-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.delivery-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.delivery-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.delivery-desc {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* 價值主張卡片 */
.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.value-card {
    background: var(--color-surface);
    padding: var(--space-md);
    border-left: 4px solid var(--color-accent);
    transition: transform 0.2s, box-shadow 0.2s;
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.value-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.value-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
}

.value-desc {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* 課程模塊 */
.modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.module {
    background: var(--color-surface);
    padding: var(--space-md);
    border: 1px solid var(--color-surface-light);
    position: relative;
    transition: border-color 0.2s;
}

.module:hover {
    border-color: var(--color-accent);
}

.module-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-surface-light);
    padding-bottom: var(--space-sm);
}

.module-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
}

.module-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.module-items {
    list-style: none;
}

.module-items li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.module-items li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.course-footnote {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-surface);
    border-left: 4px solid var(--color-accent-secondary);
    text-align: center;
}

/* 硬體要求 */
.hardware-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.hw-card {
    background: var(--color-surface);
    padding: var(--space-md);
    border-top: 4px solid var(--color-accent);
}

.hw-icon {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
}

.hw-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.hw-specs {
    list-style: none;
    color: var(--color-text-secondary);
}

.hw-specs li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.hw-specs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* 定價 */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.price-card {
    background: var(--color-surface);
    padding: var(--space-md);
    border: 1px solid var(--color-surface-light);
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.price-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.price-card.featured {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

.price-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--color-text);
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.price-header {
    text-align: center;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-surface-light);
}

.price-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.price-tag {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
}

.price-currency {
    font-size: 1.5rem;
    margin-top: 0.5rem;
}

.price-condition {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: var(--space-xs);
}

.price-features {
    list-style: none;
    margin-bottom: var(--space-md);
}

.price-features li {
    padding: 0.7rem 0;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.price-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    background: var(--color-surface-light);
    color: var(--color-text);
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.price-btn.primary {
    background: var(--gradient-primary);
}

.price-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* 行動呼籲 */
.cta {
    background: var(--color-surface);
    padding: var(--space-xl) var(--space-md);
    text-align: center;
    margin: var(--space-xl) 0;
    border-left: 8px solid var(--color-accent);
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.cta-subtitle {
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    font-size: 1.1rem;
}

.cta-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto var(--space-md);
    gap: var(--space-sm);
}

.cta-input {
    flex: 1;
    padding: 1rem;
    background: var(--color-bg);
    border: 2px solid var(--color-surface-light);
    color: var(--color-text);
    font-family: var(--font-body);
}

.cta-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.cta-submit {
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--color-text);
    border: none;
    font-family: var(--font-body);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.cta-submit:hover {
    transform: translateY(-2px);
}

.cta-note {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* 頁腳 */
.footer {
    background: var(--color-surface);
    padding: var(--space-lg) 0;
    text-align: center;
    border-top: 1px solid var(--color-surface-light);
    margin-top: var(--space-xl);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.footer-copyright {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-sm);
    opacity: 0.7;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--color-accent-secondary);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .nav-links {
        display: none; /* 在手機端可考慮添加漢堡菜單 */
    }

    .cta-form {
        flex-direction: column;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .price-card.featured {
        transform: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .value-cards,
    .modules,
    .hardware-grid {
        grid-template-columns: 1fr;
    }
}