/* ========================================
   AI Infra 快速覆蓋樣式
   應用深藍+金色配色到現有網站
   ======================================== */

/* === 全局覆蓋 === */
body {
    background: var(--gradient-dark) !important;
    color: var(--text-white) !important;
}

/* === 導航欄 === */
.navbar {
    background: rgba(10, 25, 41, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.nav-brand {
    color: var(--accent-gold) !important;
    font-weight: 700;
}

.nav-brand i {
    color: var(--tech-cyan);
}

.nav-menu a {
    color: var(--text-light) !important;
}

.nav-menu a:hover {
    color: var(--accent-gold) !important;
}

/* === Hero Section === */
.hero {
    background: var(--gradient-dark-radial) !important;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(90deg,
            transparent,
            transparent 50px,
            rgba(0, 212, 255, 0.02) 50px,
            rgba(0, 212, 255, 0.02) 51px),
        repeating-linear-gradient(0deg,
            transparent,
            transparent 50px,
            rgba(0, 212, 255, 0.02) 50px,
            rgba(0, 212, 255, 0.02) 51px);
    z-index: 0;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h1 {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 56px !important;
    font-weight: 700;
    text-shadow: none;
}

.hero p {
    color: var(--text-light) !important;
    font-size: 20px;
}

/* === 主要按鈕 === */
.btn-primary,
.btn.btn-primary,
a.btn-primary {
    background: var(--gradient-gold) !important;
    color: var(--primary-dark) !important;
    border: none !important;
    padding: 16px 40px !important;
    font-size: 18px !important;
    font-weight: 700 !important;
    border-radius: 50px !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-glow-gold) !important;
    transition: all 0.3s ease !important;
}

.btn-primary:hover,
.btn.btn-primary:hover,
a.btn-primary:hover {
    transform: translateY(-3px) scale(1.05) !important;
    box-shadow: 0 0 40px rgba(212, 175, 55, 0.8) !important;
}

/* === 次要按鈕 === */
.btn-outline,
.btn-secondary {
    background: transparent !important;
    color: var(--tech-cyan) !important;
    border: 2px solid var(--tech-cyan) !important;
    padding: 14px 36px !important;
    border-radius: 50px !important;
    transition: all 0.3s ease !important;
}

.btn-outline:hover,
.btn-secondary:hover {
    background: var(--tech-cyan) !important;
    color: var(--primary-dark) !important;
    box-shadow: var(--shadow-glow-cyan) !important;
    transform: translateY(-2px) !important;
}

/* === Section 背景 === */
.features,
.demo-section,
.testimonials {
    background: var(--primary-navy) !important;
}

.pricing {
    background: var(--gradient-dark) !important;
}

.contact {
    background: var(--primary-blue) !important;
}

/* === Section 標題 === */
.section-title {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 42px !important;
    font-weight: 700;
}

.section-subtitle {
    color: var(--text-gray) !important;
}

/* === 功能卡片 === */
.feature-card {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
    transition: all 0.3s ease !important;
    box-shadow: var(--shadow-card) !important;
}

.feature-card:hover {
    transform: translateY(-8px) !important;
    border-color: var(--tech-cyan) !important;
    box-shadow: var(--shadow-glow-cyan), var(--shadow-elevated) !important;
}

.feature-card h3 {
    color: var(--accent-gold) !important;
}

.feature-card p,
.feature-card li {
    color: var(--text-light) !important;
}

.feature-card i {
    color: var(--tech-cyan) !important;
}

/* === 定價卡片 === */
.pricing-card {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
    padding: 40px 30px !important;
    transition: all 0.3s ease !important;
    box-shadow: var(--shadow-card) !important;
}

.pricing-card:hover {
    transform: translateY(-8px) !important;
    border-color: var(--tech-cyan) !important;
    box-shadow: var(--shadow-glow-cyan) !important;
}

.pricing-card.featured {
    border: 2px solid var(--accent-gold) !important;
    background: rgba(26, 41, 66, 0.8) !important;
    transform: scale(1.05) !important;
    box-shadow: var(--shadow-glow-gold), var(--shadow-elevated) !important;
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px) !important;
}

.pricing-title {
    color: var(--accent-gold) !important;
    font-size: 28px !important;
}

.pricing-subtitle {
    color: var(--text-gray) !important;
}

.pricing-price {
    color: var(--tech-cyan) !important;
}

.price-amount {
    color: var(--accent-orange) !important;
    font-size: 48px !important;
    font-weight: 800 !important;
}

.pricing-audience {
    color: var(--text-gray) !important;
    background: rgba(255, 255, 255, 0.05) !important;
}

.pricing-features li {
    color: var(--text-light) !important;
}

.pricing-features i {
    color: var(--tech-cyan) !important;
}

.popular-badge {
    background: var(--gradient-gold) !important;
    color: var(--primary-dark) !important;
    font-weight: 700;
}

/* === Demo Section === */
.demo-container {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.2) !important;
    border-radius: 20px !important;
}

.demo-form label {
    color: var(--text-light) !important;
}

.demo-form input,
.demo-form select,
.demo-form textarea {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: var(--text-white) !important;
    border-radius: 12px !important;
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
    border-color: var(--tech-cyan) !important;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1) !important;
}

.demo .demo-output,
.demo-section .demo-output {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.2) !important;
    border-radius: 20px !important;
}

.demo .demo-result,
.demo-section .demo-result {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.demo .demo-placeholder,
.demo-section .demo-placeholder {
    color: var(--text-gray) !important;
}

.demo .demo-placeholder i,
.demo-section .demo-placeholder i {
    color: var(--accent-gold) !important;
    opacity: 0.6 !important;
}

/* === Pricing Note Section === */
.pricing .note-section {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 212, 255, 0.2) !important;
    border-radius: 20px !important;
    box-shadow: var(--shadow-card) !important;
    padding: 32px !important;
    margin-top: 40px !important;
}

.pricing .note-section h3 {
    color: var(--accent-gold) !important;
    margin-bottom: 16px !important;
    font-size: 24px !important;
}

.pricing .note-section p {
    color: var(--text-light) !important;
    line-height: 1.8 !important;
    font-size: 16px !important;
}

.pricing .note-section strong {
    color: var(--tech-cyan) !important;
    font-weight: 600 !important;
}

/* === Video Showcase Section === */
.video-showcase {
    background: var(--primary-navy) !important;
    padding: 80px 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.video-item {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 16px;
    border: 2px solid rgba(0, 212, 255, 0.3);
    background: rgba(26, 41, 66, 0.6);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.video-item:hover {
    transform: translateY(-8px);
    border-color: var(--tech-cyan);
    box-shadow: var(--shadow-glow-cyan), var(--shadow-elevated);
}

.video-item iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 14px;
}

@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}

/* === Testimonials === */
.testimonial-card {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
}

.testimonial-card p {
    color: var(--text-light) !important;
}

.testimonial-author {
    color: var(--accent-gold) !important;
}

.testimonial-title {
    color: var(--text-gray) !important;
}

/* === 統計數字 === */
.stats-item {
    color: var(--text-light) !important;
}

.stat-number {
    color: var(--accent-orange) !important;
    font-weight: 800;
    font-size: 48px;
}

.stat-label {
    color: var(--text-gray) !important;
}

/* === Contact Form === */
.contact-form input,
.contact-form textarea {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: var(--text-white) !important;
    border-radius: 12px !important;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--tech-cyan) !important;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1) !important;
}

.contact-info {
    color: var(--text-light) !important;
}

.contact-info h4 {
    color: var(--accent-gold) !important;
}

.contact-info i {
    color: var(--tech-cyan) !important;
}

/* === Footer === */
footer {
    background: var(--primary-dark) !important;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

footer h4 {
    color: var(--accent-gold) !important;
}

footer a {
    color: var(--text-gray) !important;
}

footer a:hover {
    color: var(--tech-cyan) !important;
}

.footer-brand {
    color: var(--accent-gold) !important;
}

/* === 登入按鈕 === */
.btn-login {
    background: transparent !important;
    color: var(--tech-cyan) !important;
    border: 1px solid var(--tech-cyan) !important;
}

.btn-login:hover {
    background: var(--tech-cyan) !important;
    color: var(--primary-dark) !important;
}

/* === Comparison Table === */
.comparison-section {
    background: rgba(26, 41, 66, 0.6) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
    padding: 40px;
    margin-top: 60px;
}

.comparison-section h3 {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.comparison-table th {
    background: rgba(255, 255, 255, 0.05) !important;
    color: var(--accent-gold) !important;
    font-weight: 600;
    font-size: 16px;
}

.comparison-table td {
    color: var(--text-light) !important;
    font-size: 15px;
}

.comparison-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03) !important;
}

.comparison-table tr:last-child td {
    border-bottom: none !important;
}

.check-icon {
    color: var(--tech-cyan) !important;
    font-size: 20px;
    font-weight: bold;
}

.cross-icon {
    color: var(--accent-orange) !important;
    font-size: 20px;
    opacity: 0.5;
}

/* === 響應式調整 === */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px !important;
    }

    .section-title {
        font-size: 32px !important;
    }

    .pricing-card.featured {
        transform: scale(1) !important;
    }

    .comparison-table {
        font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
    }
}