/* ============================================
   EMP-AI 共用 CSS 樣式表
   用於 index.php, dashboard.php 及其他頁面
   ============================================ */

/* CSS 變數定義 */
:root {
    --primary-color: #1a73e8;
    --primary-dark: #1557b0;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

/* 基礎重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 手機上減少容器左右空白 */
@media (max-width: 575.98px) {
    .container {
        padding: 0 0.5rem;
    }
}

/* 導航欄 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

/* 企業級 Logo 樣式 */
.enterprise-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 8px 0;
}

.enterprise-logo:hover {
    transform: translateY(-1px);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(13, 71, 161, 0.3);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-icon i {
    font-size: 22px;
    color: #ffffff;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.logo-text {
    display: flex;
    align-items: baseline;
    font-weight: 800;
    font-size: 1.75rem;
    letter-spacing: -0.5px;
    line-height: 1;
}

.logo-main {
    background: linear-gradient(135deg, #0d47a1 0%, #1565c0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    text-shadow: 0 2px 8px rgba(13, 71, 161, 0.2);
}

.logo-divider {
    color: #90caf9;
    font-weight: 300;
    margin: 0 2px;
    opacity: 0.6;
}

.logo-accent {
    background: linear-gradient(135deg, #1976d2 0%, #42a5f5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    position: relative;
}

.logo-accent::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #42a5f5, transparent);
    opacity: 0.5;
}
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    text-decoration: none;
}

.nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* 按鈕樣式 */
.btn-primary-custom {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 24px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

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

.btn-outline-secondary {
    border: 1px solid #ddd;
    color: var(--text-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 24px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
    background: var(--bg-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Section 樣式 */
.features-section,
.demo-section,
.solutions-section,
.cta-section {
    padding-top: 80px; /* 為固定導航欄留出空間 */
}

.features-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.demo-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Demo Container */
.demo-container {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
    margin-top: 3rem;
}

/* Demo Tabs */
.demo-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #e8eaed;
    flex-wrap: wrap;
}

.demo-tab {
    padding: 1rem 2rem;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    top: 2px;
}

.demo-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.demo-content {
    display: none;
    min-height: 500px;
}

.demo-content.active {
    display: block;
}

/* 聊天相關樣式 */
#ai-chat-demo {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    height: 800px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h4 {
    margin: 0;
    font-weight: 600;
}

#chat-messages-demo {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    padding: 0.8rem 1.2rem;
    border-radius: 18px;
    max-width: 75%;
    word-wrap: break-word;
}

.user-message {
    background: var(--primary-color);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.ai-message {
    background: #f1f3f5;
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-input-area {
    padding: 1.5rem;
    border-top: 1px solid #e8eaed;
    display: flex;
    gap: 0.5rem;
}

.chat-input-area input {
    flex: 1;
    padding: 0.8rem 1.2rem;
    border: 1px solid #e8eaed;
    border-radius: 24px;
    font-size: 1rem;
}

.chat-input-area button {
    padding: 0.8rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-input-area button:hover {
    background: var(--primary-dark);
}

/* Markdown 渲染樣式 */
.ai-message.markdown-content {
    line-height: 1.7;
}

.ai-message.markdown-content h1,
.ai-message.markdown-content h2,
.ai-message.markdown-content h3,
.ai-message.markdown-content h4,
.ai-message.markdown-content h5,
.ai-message.markdown-content h6 {
    margin-top: 1.2em;
    margin-bottom: 0.8em;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.ai-message.markdown-content h1 {
    font-size: 1.5em;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 0.5em;
}

.ai-message.markdown-content h2 {
    font-size: 1.3em;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 0.4em;
}

.ai-message.markdown-content h3 {
    font-size: 1.15em;
}

.ai-message.markdown-content h4 {
    font-size: 1.05em;
}

.ai-message.markdown-content p {
    margin: 0.8em 0;
}

.ai-message.markdown-content ul,
.ai-message.markdown-content ol {
    margin: 0.8em 0;
    padding-left: 1.8em;
}

.ai-message.markdown-content li {
    margin: 0.4em 0;
    line-height: 1.6;
}

.ai-message.markdown-content ul li {
    list-style-type: disc;
}

.ai-message.markdown-content ol li {
    list-style-type: decimal;
}

.ai-message.markdown-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.ai-message.markdown-content em {
    font-style: italic;
}

.ai-message.markdown-content code {
    background: rgba(0, 0, 0, 0.08);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.ai-message.markdown-content pre {
    background: rgba(0, 0, 0, 0.05);
    padding: 1em;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1em 0;
}

.ai-message.markdown-content pre code {
    background: none;
    padding: 0;
}

.ai-message.markdown-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1em;
    margin: 1em 0;
    color: #666;
    font-style: italic;
}

.ai-message.markdown-content hr {
    border: none;
    border-top: 1px solid #e0e0e0;
    margin: 1.5em 0;
}

.ai-message.markdown-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.ai-message.markdown-content a:hover {
    text-decoration: underline;
}

.ai-message.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.ai-message.markdown-content table th,
.ai-message.markdown-content table td {
    border: 1px solid #e0e0e0;
    padding: 0.6em 1em;
    text-align: left;
}

.ai-message.markdown-content table th {
    background: #f8f9fa;
    font-weight: 600;
}

/* 聊天中的圖片樣式 */
.chat-image {
    max-width: 50%;
    height: auto;
    border-radius: 8px;
    margin: 0.5em 0;
    display: block;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chat-image:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.ai-message .chat-image,
.user-message .chat-image {
    max-width: 50%;
}

/* 監控相關樣式 */
.monitor-demo-container {
    background: #1a1a1a;
    border-radius: 16px;
    padding: 2rem;
    color: white;
}

.monitor-preview {
    width: 100%;
    /*height: 400px;*/
    background: #2a2a2a;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.monitor-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

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

.monitor-controls button {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-start {
    background: var(--secondary-color);
    color: white;
}

.btn-stop {
    background: var(--accent-color);
    color: white;
}

/* Portfolio Items */
#portfolio-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0;
}

.portfolio-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

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

.portfolio-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: #f5f5f5;
    display: block;
}

.portfolio-item-content {
    padding: 1rem;
}

.portfolio-item-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Floating Chat Button */
.floating-chat-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-chat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 35px rgba(26, 115, 232, 0.4);
}

/* 響應式設計 - 手機優先（360px 為最低接受規格） */
/* 小手機（360px - 575px） */
@media (max-width: 575.98px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .navbar {
        padding: 0.75rem 0;
    }
    
    .enterprise-logo {
        gap: 8px;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .logo-icon i {
        font-size: 18px;
    }
    
    .logo-text {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }

    .demo-container {
        padding: 1rem;
    }

    .floating-chat-btn {
        width: 48px;
        height: 48px;
        bottom: 16px;
        right: 16px;
        font-size: 1.2rem;
    }
    
    /* 按鈕優化 */
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .btn-sm {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    /* 表格優化 */
    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    table {
        font-size: 0.85rem;
        min-width: 600px;
    }
    
    table th,
    table td {
        padding: 0.5rem 0.4rem;
    }
}

/* 平板和手機（576px - 768px） */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .demo-container {
        padding: 1.5rem;
    }

    .floating-chat-btn {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
}