/* ================================================
   泰厚CHILL - 專業導航欄樣式
   Version: 4.0
   Last Updated: 2026-01-12
   設計理念：簡潔、優雅、專業、完美RWD
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600&display=swap');

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --navbar-height: 72px;
    --navbar-height-tablet: 64px;
    --navbar-height-mobile: 60px;
    --navbar-bg: #ffffff;
    --navbar-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
    --navbar-shadow-scroll: 0 4px 20px rgba(0, 0, 0, 0.08);
    --primary: #2C3E50;
    --secondary: #D35400;
    --accent: #E67E22;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --border-color: #e8e8e8;
    --hover-bg: #f8f8f8;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Body Padding - 為導航欄預留空間
   ============================================ */
body {
    padding-top: var(--navbar-height) !important;
}

@media (max-width: 768px) {
    body {
        padding-top: var(--navbar-height-tablet) !important;
    }
}

@media (max-width: 480px) {
    body {
        padding-top: var(--navbar-height-mobile) !important;
    }
}

/* ============================================
   Navbar Base - 乾淨俐落的設計
   ============================================ */
.navbar,
nav.navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: var(--navbar-height) !important;
    background: var(--navbar-bg) !important;
    z-index: 9999 !important;
    box-shadow: var(--navbar-shadow) !important;
    transition: box-shadow var(--transition-normal),
                border-color var(--transition-normal) !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 0 !important;
    display: block !important;
}

.navbar.scrolled {
    box-shadow: var(--navbar-shadow-scroll) !important;
    border-bottom-color: transparent !important;
}

/* ============================================
   Nav Content Container
   ============================================ */
.nav-content,
.navbar .nav-content {
    max-width: 1200px !important;
    margin: 0 auto !important;
    padding: 0 2rem !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    height: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

/* ============================================
   Logo
   ============================================ */
.logo-container,
.navbar .logo-container,
a.logo-container {
    flex-shrink: 0 !important;
    display: flex !important;
    align-items: center !important;
    height: 100% !important;
    padding: 12px 0 !important;
    width: auto !important;
    opacity: 1 !important;
    animation: none !important;
    margin: 0 !important;
    text-decoration: none !important;
    z-index: 10002 !important;
}

.logo-container img,
.navbar .logo-container img {
    height: auto !important;
    max-height: 48px !important;
    width: auto !important;
    object-fit: contain !important;
    transition: opacity var(--transition-fast) !important;
    display: block !important;
}

.logo-container:hover img {
    opacity: 0.8 !important;
}

/* ============================================
   Desktop Navigation Links
   ============================================ */
.nav-links,
.navbar .nav-links {
    display: flex !important;
    align-items: center !important;
    gap: 0 !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
    flex-direction: row !important;
    position: static !important;
    background: transparent !important;
    box-shadow: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    pointer-events: auto !important;
}

.nav-link,
.navbar .nav-link,
a.nav-link {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 100% !important;
    padding: 0 1.25rem !important;
    color: var(--text-gray) !important;
    text-decoration: none !important;
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif !important;
    font-weight: 500 !important;
    font-size: 15px !important;
    letter-spacing: 0.02em !important;
    white-space: nowrap !important;
    position: relative !important;
    transition: color var(--transition-fast),
                background var(--transition-fast) !important;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
}

/* Hover 底線效果 */
.nav-link::before,
.navbar .nav-link::before {
    content: '' !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 50% !important;
    width: 0 !important;
    height: 2px !important;
    background: var(--secondary) !important;
    transition: width var(--transition-normal),
                left var(--transition-normal) !important;
}

.nav-link::after,
.navbar .nav-link::after {
    display: none !important;
}

.nav-link:hover,
.navbar .nav-link:hover {
    color: var(--text-dark) !important;
    background: var(--hover-bg) !important;
}

.nav-link:hover::before,
.navbar .nav-link:hover::before {
    width: 100% !important;
    left: 0 !important;
}

/* Active 狀態 */
.nav-link.active,
.navbar .nav-link.active {
    color: var(--secondary) !important;
    font-weight: 600 !important;
}

.nav-link.active::before,
.navbar .nav-link.active::before {
    width: 100% !important;
    left: 0 !important;
}

/* ============================================
   Mobile Menu Toggle Button
   ============================================ */
.menu-toggle,
.navbar .menu-toggle,
button.menu-toggle {
    display: none !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    width: 48px !important;
    height: 48px !important;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    border-radius: 12px !important;
    cursor: pointer !important;
    z-index: 10001 !important;
    transition: background var(--transition-fast) !important;
    position: relative !important;
    -webkit-tap-highlight-color: transparent !important;
    touch-action: manipulation !important;
}

.menu-toggle:hover,
.menu-toggle:focus {
    background: var(--hover-bg) !important;
    outline: none !important;
}

.menu-toggle .bar,
.navbar .menu-toggle .bar {
    display: block !important;
    width: 24px !important;
    height: 2px !important;
    background: var(--text-dark) !important;
    border-radius: 2px !important;
    transition: transform var(--transition-normal),
                opacity var(--transition-fast),
                width var(--transition-fast) !important;
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
}

.menu-toggle .bar:nth-child(1) {
    top: 16px !important;
}

.menu-toggle .bar:nth-child(2) {
    top: 23px !important;
}

.menu-toggle .bar:nth-child(3) {
    top: 30px !important;
}

/* 漢堡變 X 動畫 */
.menu-toggle.active .bar:nth-child(1) {
    top: 23px !important;
    transform: translateX(-50%) rotate(45deg) !important;
}

.menu-toggle.active .bar:nth-child(2) {
    opacity: 0 !important;
    width: 0 !important;
}

.menu-toggle.active .bar:nth-child(3) {
    top: 23px !important;
    transform: translateX(-50%) rotate(-45deg) !important;
}

/* ============================================
   Mobile Overlay (背景遮罩)
   ============================================ */
.nav-overlay {
    display: none !important;
}

/* ============================================
   Tablet 響應式 (992px)
   ============================================ */
@media (max-width: 992px) {
    .nav-content,
    .navbar .nav-content {
        padding: 0 1.5rem !important;
    }

    .nav-link,
    .navbar .nav-link {
        padding: 0 1rem !important;
        font-size: 14px !important;
    }
}

/* ============================================
   Mobile 響應式 (768px)
   ============================================ */
@media (max-width: 768px) {
    .navbar,
    nav.navbar {
        height: var(--navbar-height-tablet) !important;
    }

    .nav-content,
    .navbar .nav-content {
        padding: 0 1rem !important;
    }

    /* 顯示漢堡選單按鈕 */
    .menu-toggle,
    .navbar .menu-toggle,
    button.menu-toggle {
        display: flex !important;
    }

    .logo-container,
    .navbar .logo-container {
        padding: 10px 0 !important;
    }

    .logo-container img,
    .navbar .logo-container img {
        max-height: 40px !important;
    }

    /* 背景遮罩 */
    .nav-overlay {
        display: block !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        background: rgba(0, 0, 0, 0.5) !important;
        z-index: 9997 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: opacity var(--transition-normal),
                    visibility var(--transition-normal) !important;
        -webkit-backdrop-filter: blur(4px) !important;
        backdrop-filter: blur(4px) !important;
    }

    .nav-overlay.active {
        opacity: 1 !important;
        visibility: visible !important;
    }

    /* 手機版側邊滑出選單 */
    .nav-links,
    .navbar .nav-links {
        position: fixed !important;
        top: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        left: auto !important;
        width: 280px !important;
        max-width: 85vw !important;
        height: 100vh !important;
        height: 100dvh !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        background: var(--navbar-bg) !important;
        padding: calc(var(--navbar-height-tablet) + 1rem) 1rem 2rem 1rem !important;
        gap: 0.5rem !important;
        box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15) !important;
        border-left: 1px solid var(--border-color) !important;
        transform: translateX(100%) !important;
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: none !important;
        transition: transform var(--transition-normal) !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        z-index: 9998 !important;
    }

    .nav-links.active,
    .navbar .nav-links.active {
        transform: translateX(0) !important;
        pointer-events: auto !important;
    }

    /* 手機版連結樣式 */
    .nav-link,
    .navbar .nav-link {
        height: auto !important;
        padding: 1rem 1.25rem !important;
        justify-content: flex-start !important;
        font-size: 16px !important;
        font-weight: 500 !important;
        border-radius: 12px !important;
        margin: 0 !important;
        background: transparent !important;
        color: var(--text-gray) !important;
        transition: all var(--transition-fast) !important;
    }

    .nav-link::before,
    .navbar .nav-link::before {
        display: none !important;
    }

    .nav-link:hover,
    .navbar .nav-link:hover {
        background: var(--hover-bg) !important;
        color: var(--text-dark) !important;
        transform: translateX(4px) !important;
    }

    .nav-link:active,
    .navbar .nav-link:active {
        background: #f0f0f0 !important;
        transform: translateX(4px) scale(0.98) !important;
    }

    .nav-link.active,
    .navbar .nav-link.active {
        color: var(--secondary) !important;
        background: rgba(211, 84, 0, 0.08) !important;
        font-weight: 600 !important;
    }

    /* 手機版左側指示條 */
    .nav-link.active::after,
    .navbar .nav-link.active::after {
        content: '' !important;
        display: block !important;
        position: absolute !important;
        left: 0 !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        width: 4px !important;
        height: 60% !important;
        max-height: 28px !important;
        background: var(--secondary) !important;
        border-radius: 0 4px 4px 0 !important;
    }

    /* Body 防止滾動 */
    body.menu-open {
        overflow: hidden !important;
        position: fixed !important;
        width: 100% !important;
        height: 100% !important;
    }
}

/* ============================================
   Small Mobile (480px)
   ============================================ */
@media (max-width: 480px) {
    .navbar,
    nav.navbar {
        height: var(--navbar-height-mobile) !important;
    }

    .nav-content,
    .navbar .nav-content {
        padding: 0 0.75rem !important;
    }

    .logo-container img,
    .navbar .logo-container img {
        max-height: 36px !important;
    }

    .menu-toggle,
    .navbar .menu-toggle {
        width: 44px !important;
        height: 44px !important;
    }

    .menu-toggle .bar:nth-child(1) {
        top: 14px !important;
    }

    .menu-toggle .bar:nth-child(2) {
        top: 21px !important;
    }

    .menu-toggle .bar:nth-child(3) {
        top: 28px !important;
    }

    .menu-toggle.active .bar:nth-child(1),
    .menu-toggle.active .bar:nth-child(3) {
        top: 21px !important;
    }

    .nav-links,
    .navbar .nav-links {
        width: 260px !important;
        padding-top: calc(var(--navbar-height-mobile) + 1rem) !important;
    }

    .nav-link,
    .navbar .nav-link {
        padding: 0.875rem 1rem !important;
        font-size: 15px !important;
    }
}

/* ============================================
   iOS Safe Area
   ============================================ */
@supports (padding-top: env(safe-area-inset-top)) {
    .navbar,
    nav.navbar {
        padding-top: env(safe-area-inset-top) !important;
    }

    body {
        padding-top: calc(var(--navbar-height) + env(safe-area-inset-top)) !important;
    }

    @media (max-width: 768px) {
        body {
            padding-top: calc(var(--navbar-height-tablet) + env(safe-area-inset-top)) !important;
        }

        .nav-links,
        .navbar .nav-links {
            padding-top: calc(var(--navbar-height-tablet) + env(safe-area-inset-top) + 1rem) !important;
            padding-bottom: calc(2rem + env(safe-area-inset-bottom)) !important;
        }
    }

    @media (max-width: 480px) {
        body {
            padding-top: calc(var(--navbar-height-mobile) + env(safe-area-inset-top)) !important;
        }

        .nav-links,
        .navbar .nav-links {
            padding-top: calc(var(--navbar-height-mobile) + env(safe-area-inset-top) + 1rem) !important;
        }
    }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-link,
    .nav-links,
    .nav-overlay,
    .logo-container img,
    .menu-toggle,
    .menu-toggle .bar,
    .nav-link::before {
        transition: none !important;
    }
}

.nav-link:focus-visible,
.menu-toggle:focus-visible {
    outline: 2px solid var(--secondary) !important;
    outline-offset: 2px !important;
}

/* ============================================
   Print
   ============================================ */
@media print {
    .navbar,
    nav.navbar {
        position: static !important;
        box-shadow: none !important;
        border-bottom: 1px solid #ccc !important;
    }

    .menu-toggle,
    .nav-overlay {
        display: none !important;
    }

    body {
        padding-top: 0 !important;
    }
}