/**
 * JJC 前台專用樣式
 *
 * 目錄：
 * 1. CSS 變數定義
 * 2. 基礎重置與排版
 * 3. 字級系統 (rem)
 * 4. Header 元件
 * 5. Footer 元件
 * 6. 通用元件（按鈕、卡片等）
 * 7. Hero Section
 * 8. Section 樣式
 * 9. 頁面專屬樣式
 * 10. 響應式調整
 * 11. 動畫效果
 */

/* ==================== 1. CSS 變數定義 ==================== */
:root {
    /* 主色系 */
    --color-primary: #84cc16;
    --color-primary-light: #65a30d;
    --color-primary-dark: #4d7c0f;
    --color-accent: #1f2937;

    /* 文字色 */
    --color-text-primary: #111827;
    --color-text-secondary: #4b5563;
    --color-text-muted: #9ca3af;
    --color-text-inverse: #ffffff;

    /* 背景色 */
    --color-bg-light: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-bg-dark: #1a1a2e;
    --color-bg-card: #ffffff;

    /* 邊框色 */
    --color-border: #e5e7eb;
    --color-border-light: rgba(255, 255, 255, 0.2);

    /* 漸層 */
    --gradient-primary: linear-gradient(135deg, #73a528 0%, #629d0e 100%);
    --gradient-light: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);

    /* 字型 */
    --font-primary: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-display: 'Poppins', sans-serif;

    /* 字級 (rem 基準: 16px) */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 4rem;        /* 64px */

    /* 間距 */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */

    /* 圓角 */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 1rem;       /* 16px */
    --radius-xl: 1.5rem;     /* 24px */
    --radius-full: 9999px;

    /* 陰影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);

    /* 過渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Header 高度 */
    --header-height: 100px;
    --header-height-scrolled: 80px;
}

/* ==================== 2. 基礎重置與排版 ==================== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background: var(--color-bg-light);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

a:hover {
    text-decoration: none;
}

/* 前台頁面使用 Poppins */
.front-page,
.front-page *:not(.material-icons):not([class*="uk-icon"]) {
    font-family: var(--font-display), var(--font-primary);
}

/* 保持 Material Icons 字型 */
.material-icons {
    font-family: 'Material Icons' !important;
    vertical-align: middle;
}

/* ==================== 3. 字級工具類 ==================== */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }

/* ==================== 4. Header 元件 ==================== */
/* 支援 light-header (內頁) 和 front-header (舊版相容) */
.light-header,
.front-header {
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    padding: 0 3.125rem; /* 50px */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.light-header.scrolled,
.front-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.light-header .uk-navbar-item,
.light-header .uk-navbar-nav > li > a,
.front-header .uk-navbar-item,
.front-header .uk-navbar-nav > li > a {
    min-height: var(--header-height);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-inverse);
    transition: color var(--transition-normal);
    letter-spacing: 0.125rem; /* 2px */
    text-transform: uppercase;
}

.light-header.scrolled .uk-navbar-item,
.light-header.scrolled .uk-navbar-nav > li > a,
.front-header.scrolled .uk-navbar-item,
.front-header.scrolled .uk-navbar-nav > li > a {
    color: var(--color-text-primary);
}

.light-header .uk-navbar-nav > li > a:hover,
.light-header .uk-navbar-nav > li.uk-active > a,
.front-header .uk-navbar-nav > li > a:hover,
.front-header .uk-navbar-nav > li.uk-active > a {
    color: var(--color-primary);
}

/* Logo */
.light-header .site-logo,
.front-header .site-logo {
    font-size: var(--text-2xl);
    font-weight: bold;
    color: var(--color-text-inverse);
}

.light-header.scrolled .site-logo,
.front-header.scrolled .site-logo {
    color: var(--color-text-primary);
}

.light-header .site-logo img,
.front-header .site-logo img {
    filter: brightness(0) invert(1);
    transition: filter var(--transition-normal);
    max-height: 3.125rem; /* 50px */
}

.light-header.scrolled .site-logo img,
.front-header.scrolled .site-logo img {
    filter: brightness(0);
}

/* Menu spacing */
.light-header .uk-navbar-nav > li,
.front-header .uk-navbar-nav > li {
    margin: 0 0.5rem;
}

/* Header Button */
.light-header .header-btn,
.front-header .header-btn,
.header-btn {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-normal);
    border: none;
    text-decoration: none;
    display: inline-block;
}

.light-header .header-btn:hover,
.front-header .header-btn:hover,
.header-btn:hover {
    background: var(--color-primary-light);
    transform: translateY(-0.125rem);
    box-shadow: 0 0.5rem 1.5rem rgba(132, 204, 22, 0.4);
    color: var(--color-text-inverse);
    text-decoration: none;
}

/* Dropdown Menu */
.light-header .uk-navbar-dropdown,
.front-header .uk-navbar-dropdown,
.uk-navbar-dropdown.light-dropdown,
.uk-navbar-dropdown.front-dropdown {
    background: var(--color-bg-card) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-lg) !important;
    padding: 1.25rem !important;
    box-shadow: var(--shadow-xl) !important;
    min-width: 12.5rem; /* 200px */
}

/* Dropbar 底層背景 */
.uk-navbar-dropbar {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.15) !important;
    border-bottom: 1px solid var(--color-border);
}

.light-header .uk-navbar-dropdown-nav > li > a,
.front-header .uk-navbar-dropdown-nav > li > a {
    color: var(--color-text-secondary) !important;
    padding: 0.625rem 0;
    transition: all var(--transition-normal);
}

.light-header .uk-navbar-dropdown-nav > li > a:hover,
.front-header .uk-navbar-dropdown-nav > li > a:hover {
    color: var(--color-text-primary) !important;
    padding-left: 0.625rem;
}

.light-header .uk-navbar-dropdown-nav .uk-nav-header,
.front-header .uk-navbar-dropdown-nav .uk-nav-header {
    color: var(--color-primary-light) !important;
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.0625rem;
}

/* Header Social Links */
.light-header .header-social,
.front-header .header-social {
    gap: 0.5rem;
    display: flex;
    align-items: center;
}

.light-header .header-social a,
.front-header .header-social a {
    color: var(--color-text-inverse);
    transition: all var(--transition-normal);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.light-header.scrolled .header-social a,
.front-header.scrolled .header-social a {
    color: var(--color-text-secondary);
}

.light-header .header-social a:hover,
.front-header .header-social a:hover {
    color: var(--color-primary);
    background: rgba(132, 204, 22, 0.15);
    transform: translateY(-0.125rem);
}

/* Mobile toggle */
.light-header .uk-navbar-toggle,
.front-header .uk-navbar-toggle {
    color: var(--color-text-inverse);
    padding: 0.75rem;
    margin-right: 0.5rem;
    min-height: auto;
}

.light-header.scrolled .uk-navbar-toggle,
.front-header.scrolled .uk-navbar-toggle {
    color: var(--color-text-primary);
}

/* 確保 navbar-right 在行動版有適當的 padding */
@media (max-width: 1339px) {
    .light-header .uk-navbar-right,
    .front-header .uk-navbar-right {
        padding-right: 0.5rem;
    }

    .light-header .uk-navbar-toggle,
    .front-header .uk-navbar-toggle {
        margin-right: 0;
    }
}

/* Mobile Menu (Offcanvas) */
.uk-offcanvas-bar.light-offcanvas,
.uk-offcanvas-bar.front-offcanvas {
    background: var(--color-bg-light) !important;
    width: 18.75rem !important; /* 300px */
}

.light-offcanvas .uk-nav > li > a,
.front-offcanvas .uk-nav > li > a {
    color: var(--color-text-secondary) !important;
    padding: 0.75rem 0;
    font-size: var(--text-base);
    transition: color var(--transition-normal);
}

.light-offcanvas .uk-nav > li > a:hover,
.front-offcanvas .uk-nav > li > a:hover {
    color: var(--color-text-primary) !important;
}

.light-offcanvas .uk-nav-sub > li > a,
.front-offcanvas .uk-nav-sub > li > a {
    color: var(--color-text-muted) !important;
    font-size: var(--text-sm);
    padding: 0.5rem 0;
}

.light-offcanvas .uk-nav-divider,
.front-offcanvas .uk-nav-divider {
    border-top-color: var(--color-border) !important;
    margin: 0.9375rem 0;
}

.light-offcanvas .uk-offcanvas-close,
.front-offcanvas .uk-offcanvas-close {
    color: var(--color-text-primary);
}

/* ==================== 5. Footer 元件 ==================== */
/* 支援 dark-footer (內頁) 和 front-footer (舊版相容) */
.dark-footer,
.front-footer {
    background: var(--gradient-primary);
    padding: 5rem 0 1.875rem;
    border-top: none;
}

.dark-footer .footer-brand,
.front-footer .footer-brand {
    margin-bottom: 1.25rem;
}

.dark-footer .footer-brand img,
.front-footer .footer-brand img {
    height: 3.75rem; /* 60px */
    filter: brightness(0) invert(1);
}

.dark-footer .footer-brand-text,
.front-footer .footer-brand-text,
.footer-brand-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--text-base);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    max-width: 18.75rem;
}

/* Footer Social (dark theme) */
.footer-social-dark,
.dark-footer .footer-social,
.front-footer .footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social-dark a,
.dark-footer .footer-social a,
.front-footer .footer-social a {
    width: 2.75rem;
    height: 2.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
    transition: all var(--transition-normal);
}

.footer-social-dark a:hover,
.dark-footer .footer-social a:hover,
.front-footer .footer-social a:hover {
    background: rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Footer Title (dark theme) */
.footer-title-dark,
.dark-footer .footer-title,
.front-footer .footer-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-inverse);
    margin-bottom: 1.5rem;
}

/* Footer Links (dark theme) */
.footer-links-dark,
.dark-footer .footer-links,
.front-footer .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links-dark li,
.dark-footer .footer-links li,
.front-footer .footer-links li {
    margin-bottom: 0.875rem;
}

.footer-links-dark a,
.dark-footer .footer-links a,
.front-footer .footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-links-dark a:hover,
.dark-footer .footer-links a:hover,
.front-footer .footer-links a:hover {
    color: var(--color-text-inverse);
}

/* Footer Contact Item */
.dark-footer .footer-contact-item,
.front-footer .footer-contact-item,
.footer-contact-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-base);
}

.dark-footer .footer-contact-item .material-icons,
.front-footer .footer-contact-item .material-icons,
.footer-contact-item .material-icons {
    color: var(--color-text-inverse);
}

/* Footer Bottom */
.dark-footer .footer-bottom,
.front-footer .footer-bottom,
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 3.75rem;
    padding-top: 1.875rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
}

/* ==================== 6. 通用元件 ==================== */

/* Primary Button */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-0.1875rem);
    box-shadow: 0 0.75rem 1.875rem rgba(132, 204, 22, 0.5);
    color: var(--color-text-inverse);
    text-decoration: none;
}

/* Outline Button (on dark bg) */
.btn-outline {
    background: transparent;
    color: var(--color-text-inverse);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    border: 1px solid var(--color-text-inverse);
    transition: all var(--transition-normal);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

/* Outline Button (on light bg) */
.btn-outline-dark {
    background: transparent;
    color: var(--color-text-primary);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--text-base);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-outline-dark:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

/* Card */
.front-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.front-card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-xl);
}

/* ==================== 7. Hero Section ==================== */
.hero-section {
    background: var(--color-bg-dark);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 53.75rem; /* 860px */
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-section[style*="background-image"] {
    background-color: rgba(0, 0, 0, 0.5);
    background-blend-mode: darken;
}

.hero-section .hero-content {
    position: relative;
    z-index: 2;
}

.hero-section .hero-title {
    font-size: var(--text-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-text-inverse);
}

.hero-section .hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ==================== 8. Section 樣式 ==================== */
.section {
    padding: 6.25rem 0; /* 100px */
    background: var(--color-bg-light);
}

.section-alt {
    padding: 6.25rem 0;
    background: var(--color-bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 3.75rem;
}

.section-badge {
    display: inline-block;
    background: rgba(132, 204, 22, 0.15);
    color: var(--color-primary-light);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.0625rem;
    margin-bottom: 1rem;
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 600;
    color: var(--color-primary-light);
    display: inline-block;
    padding-bottom: 0.75rem;
    border-bottom: 0.1875rem solid var(--color-primary-light);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: var(--text-3xl);
    color: var(--color-text-secondary);
    max-width: 56.25rem;
    margin: 1.25rem auto 0;
    line-height: 1.4;
    font-weight: 300;
}

/* ==================== 9. Page Hero (Inner Page) ==================== */
.page-hero {
    position: relative;
    padding: 8.75rem 0 3.75rem;
    text-align: center;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 0;
}

.page-hero-content {
    position: relative;
    z-index: 1;
}

.page-hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--color-text-inverse);
    margin: 0 0 1rem;
    letter-spacing: 0.125rem;
}

.page-hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-primary);
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.1875rem;
    text-transform: uppercase;
}

/* ==================== 10. CTA Section ==================== */
.cta-section {
    position: relative;
    padding: 9.375rem 0;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 0;
}

.cta-section > .uk-container {
    position: relative;
    z-index: 1;
}

.cta-section .cta-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--color-text-inverse);
    margin-bottom: 2.5rem;
    text-shadow: 0 0.125rem 1.25rem rgba(0, 0, 0, 0.3);
}

/* ==================== 11. 響應式調整 ==================== */

/* 自訂斷點：1340px 切換為行動版選單 */
@media (max-width: 1339px) {
    /* 隱藏桌面版導航元素 */
    .light-header .uk-navbar-nav.uk-visible\@l,
    .light-header .uk-visible\@l,
    .front-header .uk-navbar-nav.uk-visible\@l,
    .front-header .uk-visible\@l {
        display: none !important;
    }

    /* 顯示行動版漢堡選單 */
    .light-header .uk-hidden\@l,
    .front-header .uk-hidden\@l {
        display: block !important;
    }

    /* 調整 header padding */
    .light-header,
    .front-header {
        padding: 0 1.5rem;
    }
}

@media (max-width: 1200px) {
    :root {
        --header-height: 90px;
    }
}

@media (max-width: 960px) {
    :root {
        --header-height: 80px;
    }

    .hero-section .hero-title {
        font-size: 2.75rem;
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .page-hero-title {
        font-size: var(--text-4xl);
    }
}

@media (max-width: 640px) {
    html, body {
        overflow-x: hidden !important;
    }

    .uk-container {
        padding-left: 0.9375rem !important;
        padding-right: 0.9375rem !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .hero-section {
        padding: 8.75rem 0 5rem;
        min-height: auto;
    }

    .hero-section .hero-title {
        font-size: var(--text-4xl);
    }

    .hero-section .hero-buttons {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.625rem;
    }

    .hero-section .hero-buttons .btn-primary,
    .hero-section .hero-buttons .btn-outline {
        padding: 0.75rem 1.25rem;
        font-size: var(--text-sm);
    }

    .section,
    .section-alt {
        padding: 3.75rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

    .light-header,
    .front-header {
        padding: 0 0.9375rem;
    }

    .page-hero {
        padding: 8.75rem 0 3.75rem;
    }

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

    .page-hero-subtitle {
        font-size: var(--text-base);
    }

    /* Footer 響應式 */
    .dark-footer .footer-links,
    .front-footer .footer-links,
    .footer-links-dark {
        columns: 2;
        column-gap: 0.625rem;
    }

    .dark-footer .footer-links li,
    .front-footer .footer-links li,
    .footer-links-dark li {
        margin-bottom: 0.625rem;
        break-inside: avoid;
    }

    .dark-footer,
    .front-footer {
        padding: 3.125rem 0 1.25rem;
    }

    .dark-footer .footer-bottom,
    .front-footer .footer-bottom,
    .footer-bottom {
        margin-top: 1.875rem;
    }
}

/* Parallax fix for mobile */
@media (max-width: 1024px) {
    .page-hero,
    .cta-section {
        background-attachment: scroll;
    }
}

/* ==================== 12. 動畫效果 ==================== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-1.25rem); }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(1.875rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* ==================== 13. 工具類別 ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.py-section { padding-top: 6.25rem; padding-bottom: 6.25rem; }
.py-section-sm { padding-top: 3.75rem; padding-bottom: 3.75rem; }