/* ============================================
   ChainTax Legal Pages - Common Styles
   Following chaintax.org design system
   ============================================ */

/* Google Fonts - Same as main site */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@500;600;700;800&display=swap');

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */
:root {
    /* Colors */
    --color-primary: #0A0A0A;
    --color-secondary: #1a1a2e;
    --color-accent: #00D4AA;
    --color-accent-hover: #00B894;
    --color-accent-light: rgba(0, 212, 170, 0.1);
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-border: #e5e7eb;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-bg-dark: #0A0A0A;
    --color-warning-bg: #FFF5F5;
    --color-warning-border: #CC0000;
    --color-warning-text: #990000;
    --color-notice-bg: #F8F8F8;
    --color-notice-border: #CCCCCC;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */
.c-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.c-container--narrow {
    max-width: 900px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.c-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
}

.c-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.c-header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.c-header__logo-img {
    height: 36px;
    width: auto;
}

.c-header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.c-header__nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.c-header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.c-header__nav-link:hover {
    color: var(--color-accent);
}

.c-header__nav-link:hover::after {
    width: 100%;
}

.c-header__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.c-header__hamburger span {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-normal);
}

/* Mobile Navigation Drawer */
.c-mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--color-bg);
    z-index: 2000;
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
}

.c-mobile-drawer.is-active {
    right: 0;
}

.c-mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.c-mobile-nav-link {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.c-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.c-drawer-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   BREADCRUMB
   ============================================ */
.c-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    transition: gap var(--transition-fast);
}

.c-breadcrumb:hover {
    gap: var(--spacing-sm);
}

/* ============================================
   HERO SECTION
   ============================================ */
.c-hero {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.c-hero__title {
    font-family: var(--font-heading);
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.c-hero__subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--color-text-light);
    max-width: 700px;
    line-height: 1.6;
}

/* ============================================
   NOTICE / WARNING BOXES
   ============================================ */
.c-notice-box {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-notice-border);
    background: var(--color-notice-bg);
}

.c-notice-box--warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning-border);
}

.c-notice-box--critical {
    background: linear-gradient(135deg, #FFEEEE 0%, #FFF5F5 100%);
    border: 2px solid var(--color-warning-border);
    box-shadow: 0 4px 12px rgba(204, 0, 0, 0.1);
}

.c-notice-box__text {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
    line-height: 1.6;
}

.c-notice-box--warning .c-notice-box__text,
.c-notice-box--critical .c-notice-box__text {
    color: var(--color-warning-text);
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */
.c-content {
    padding: var(--spacing-xl) 0 var(--spacing-xxl);
}

.c-article {
    max-width: 850px;
    margin: 0 auto;
}

.c-article__section {
    margin-bottom: var(--spacing-xl);
}

.c-article__section:last-child {
    margin-bottom: 0;
}

/* Headings */
.c-article h2 {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.c-article h3 {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.c-article h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-secondary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

/* Paragraphs */
.c-article p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
    color: var(--color-text);
}

.c-article p:last-child {
    margin-bottom: 0;
}

/* Lists */
.c-article ul,
.c-article ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.c-article li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
    color: var(--color-text);
}

.c-article ul li {
    list-style-type: none;
    position: relative;
}

.c-article ul li::before {
    content: '•';
    color: var(--color-accent);
    font-weight: bold;
    position: absolute;
    left: -1.2em;
}

/* Strong/Bold text */
.c-article strong {
    font-weight: 600;
    color: var(--color-primary);
}

/* Links in content */
.c-article a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.c-article a:hover {
    color: var(--color-accent-hover);
}

/* ============================================
   TABLES
   ============================================ */
.c-table-wrapper {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.c-styled-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.c-styled-table th {
    background: var(--color-primary);
    color: white;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    white-space: nowrap;
}

.c-styled-table th:first-child {
    border-radius: var(--radius-md) 0 0 0;
}

.c-styled-table th:last-child {
    border-radius: 0 var(--radius-md) 0 0;
}

.c-styled-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.c-styled-table tr:last-child td {
    border-bottom: none;
}

.c-styled-table tr:nth-child(even) td {
    background: var(--color-bg-alt);
}

.c-styled-table tr:hover td {
    background: var(--color-accent-light);
}

/* ============================================
   FOOTER
   ============================================ */
.c-footer {
    background: #FFFFFF;
    color: #5A6065;
    padding: 32px 0;
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--color-border);
}

.c-footer__legal-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 20px;
}

.c-footer__link {
    color: #666666;
    font-size: 14.5px;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.c-footer__link:hover {
    color: #154618;
    text-decoration: underline;
}

.c-footer__bottom {
    text-align: center;
    font-size: 13.5px;
    color: #5A6065;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.c-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.c-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.c-back-to-top:hover {
    background: var(--color-accent-hover);
    transform: translateY(-3px);
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .c-header,
    .c-footer,
    .c-back-to-top,
    .c-notice-box {
        display: none !important;
    }
    
    .c-hero {
        padding: 20px 0;
    }
    
    .c-content {
        padding: 20px 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    a {
        color: inherit;
        text-decoration: none;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 992px) {
    .c-header__nav {
        display: none;
    }
    
    .c-header__hamburger {
        display: flex;
    }
    
    .c-hero__title {
        font-size: 36px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 24px;
        --spacing-xl: 32px;
        --spacing-xxl: 48px;
    }
    
    .c-hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }
    
    .c-hero__title {
        font-size: 28px;
    }
    
    .c-hero__subtitle {
        font-size: 16px;
    }
    
    .c-article h2 {
        font-size: 24px;
    }
    
    .c-article h3 {
        font-size: 20px;
    }
    
    .c-article p {
        text-align: left;
    }
    
    .c-styled-table {
        font-size: 12px;
    }
    
    .c-styled-table th,
    .c-styled-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .c-footer__legal-links {
        gap: 16px 20px;
    }

    .c-back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 18px;
    }
    
    .c-notice-box {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .c-notice-box__text {
        font-size: 13px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .c-container {
        padding: 0 var(--spacing-sm);
    }
    
    .c-hero__title {
        font-size: 24px;
    }
    
    .c-article h2 {
        font-size: 22px;
    }
    
    .c-article ul,
    .c-article ol {
        margin-left: var(--spacing-md);
    }
}