/* ============================================
   九水算什麼東西 - 官方網站樣式
   科技神祕學 × 狀態解析系統
   ============================================ */

/* 基礎設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色系 - 深藍、靛藍、墨紫、冷青綠 */
    --color-primary: #1a4d7a;
    --color-primary-dark: #0f2d47;
    --color-primary-light: #2d6ba3;
    --color-secondary: #4a5568;
    --color-accent: #2d8659;
    --color-accent-light: #48bb78;
    
    /* 背景色 - 米白 / 冷灰白 */
    --color-bg: #fafafa;
    --color-bg-alt: #f5f5f5;
    --color-white: #ffffff;
    
    /* 文字顏色 */
    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-text-lighter: #a0aec0;
    
    /* 間距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 字體 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "微軟正黑體", "Helvetica Neue", Arial, sans-serif;
    
    /* 陰影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* 過渡效果 */
    --transition: all 0.3s ease;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Navigation 導航列
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    transition: var(--transition);
    /* 確保去背圖正確顯示 */
    background: transparent;
}

.logo-img:hover {
    transform: rotate(15deg);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    transition: var(--transition);
}

/* ============================================
   Hero 首屏
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg) 0%, #e8f4f8 100%);
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 60px;
    text-align: center;
}

.hero-container {
    max-width: 800px;
}

.hero-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
    animation: float 3s ease-in-out infinite;
    /* 確保去背圖正確顯示 */
    background: transparent;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
    margin: 0;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.hero-tagline {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.hero-project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-link {
    color: var(--color-primary);
    transition: var(--transition);
    padding: var(--spacing-xs);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
}

.social-link:hover {
    color: var(--color-accent);
    transform: translateY(-3px);
    background: rgba(26, 77, 122, 0.1);
}

/* ============================================
   按鈕樣式
   ============================================ */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   區塊標題
   ============================================ */
.section-title {
    font-size: 2.5rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--color-accent);
}

/* ============================================
   About 這裡在做什麼
   ============================================ */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

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

.lead {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
}

.about-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

.concept-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================
   Services 我能如何協助你
   ============================================ */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.services-intro {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.services-intro .lead {
    font-size: 1.2rem;
    color: var(--color-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.service-card.featured {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-white) 0%, #f0f9f4 100%);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    display: block;
    text-align: center;
    min-height: 60px;
    line-height: 60px;
    width: 100%;
}

.service-icon i {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    vertical-align: middle;
}

/* 確保 Font Awesome 圖標正確顯示 */
.service-icon i.fas,
.service-icon i.far,
.service-icon i.fab {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands";
    font-weight: 900;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.service-card h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.service-desc {
    color: var(--color-text);
    line-height: 1.7;
    margin-top: var(--spacing-sm);
}

/* ============================================
   Pricing 收費方式
   ============================================ */
.pricing {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.pricing-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.currency {
    font-size: 1.5rem;
    margin-right: var(--spacing-xs);
}

.price {
    font-size: 4rem;
    font-weight: 700;
}

.pricing-duration {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.pricing-note {
    font-size: 1rem;
    opacity: 0.8;
}

.pricing-desc {
    font-size: 1rem;
    line-height: 1.7;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: var(--color-text);
}

/* ============================================
   Events 現正上映
   ============================================ */
.events {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.event-card {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(135deg, #e8f4f8 0%, #d4e8f0 100%);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--color-primary);
}

.event-card h3 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.event-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.event-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg);
    color: var(--color-secondary);
    border-radius: 20px;
    font-size: 0.9rem;
}

.event-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

.event-features li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--color-text);
}

.event-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.event-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================
   Booking 預約流程
   ============================================ */
.booking {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.booking-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.booking-methods h3,
.booking-form-container h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: 8px;
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
    border: 2px solid transparent;
}

.contact-method:hover {
    border-color: var(--color-primary);
    background: var(--color-white);
    transform: translateX(5px);
}

.contact-icon {
    font-size: 1.5rem;
}

.booking-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.form-group label {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 77, 122, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background: #c6f6d5;
    color: #22543d;
    display: block;
}

.form-message.error {
    background: #fed7d7;
    color: #742a2a;
    display: block;
}

/* ============================================
   Why 為什麼是九水
   ============================================ */
.why {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.why-intro {
    margin-bottom: var(--spacing-lg);
}

.about-me {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.about-me-content h3 {
    color: var(--color-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.intro-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.about-me-content p {
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.intro-highlights {
    margin-top: var(--spacing-md);
}

.intro-highlights p {
    margin-bottom: var(--spacing-sm);
}

.intro-highlights ul {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-sm);
}

.intro-highlights li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.7;
    color: var(--color-text);
}

.intro-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.chart-image {
    max-width: 600px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--color-white);
    padding: var(--spacing-md);
}

.chart-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.why-item {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.why-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.why-item h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.why-item p {
    color: var(--color-text);
    line-height: 1.7;
}

/* ============================================
   FAQ 常見問題
   ============================================ */
.faq {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    margin-top: var(--spacing-lg);
}

.faq-item {
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--color-white);
}

.faq-question h3 {
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 300;
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text);
    line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-brand-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-brand-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    /* 去背圖保持原色，不變白 */
    opacity: 0.9;
    background: transparent;
}

.footer-brand {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

.footer-tagline {
    font-size: 0.9rem;
    opacity: 0.8;
    font-style: italic;
}

.footer-links h4,
.footer-info h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-links ul,
.footer-info ul {
    list-style: none;
}

.footer-links li,
.footer-info li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a,
.footer-info a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-info a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-declaration {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ============================================
   RWD 響應式設計
   ============================================ */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background: var(--color-white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-md) 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

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

    .services-grid {
        grid-template-columns: 1fr;
    }

    .booking-content {
        grid-template-columns: 1fr;
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

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

    .price {
        font-size: 3rem;
    }

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

    .event-cta .btn {
        width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .about-me {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero-logo {
        width: 50px;
        height: 50px;
    }

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

    .footer-brand-logo {
        width: 30px;
        height: 30px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}