/* ===================================
   Systems & Networks - Global Design System
   =================================== */

/* Import Google Fonts (optional - can be toggled) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ===================================
   1. CSS VARIABLES - Design Tokens
   =================================== */

:root {
    /* Color Palette - Primary Colors */
    --primary-color: #0066CC;
    --primary-dark: #0052A3;
    --primary-darker: #004080;
    --primary-light: #3385D6;
    --primary-lighter: #66A8E3;
    
    /* Secondary Colors */
    --secondary-color: #004080;
    --secondary-dark: #002E5C;
    --secondary-light: #1A5BA3;
    
    /* Accent Color */
    --accent-color: #00AAFF;
    --accent-dark: #0088CC;
    --accent-light: #33BBFF;
    
    /* Neutral Colors */
    --text-dark: #333333;
    --text-medium: #555555;
    --text-light: #666666;
    --text-lighter: #999999;
    --bg-light: #F5F5F5;
    --bg-lighter: #FAFAFA;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --border-light: #F0F0F0;
    
    /* Semantic Colors */
    --success-color: #28A745;
    --warning-color: #FFC107;
    --error-color: #DC3545;
    --info-color: #17A2B8;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    /* Transitions & Animations */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.6s ease;
    
    /* Typography - Font Families */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Typography - Font Sizes */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.5rem;      /* 24px */
    --font-size-2xl: 1.75rem;    /* 28px */
    --font-size-3xl: 2.5rem;     /* 40px */
    --font-size-4xl: 3.5rem;     /* 56px */
    
    /* Typography - Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Typography - Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
    
    /* Spacing Scale */
    --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 */
    
    /* Layout */
    --container-max-width: 1200px;
    --container-padding-desktop: 1.5rem;
    --container-padding-tablet: 1rem;
    --container-padding-mobile: 0.75rem;
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;
    
    /* Z-Index Scale */
    --z-header: 1000;
    --z-mobile-menu: 999;
    --z-tooltip: 1500;
    --z-modal: 2000;
    --z-default: 1;
}

/* ===================================
   2. RESET & BASE STYLES
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ===================================
   3. TYPOGRAPHY
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

small {
    font-size: var(--font-size-sm);
}

strong {
    font-weight: var(--font-weight-bold);
}

em {
    font-style: italic;
}

/* ===================================
   4. LAYOUT & CONTAINER
   =================================== */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding-desktop);
}

section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    color: var(--text-dark);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   5. HEADER
   =================================== */

.main-header {
    position: sticky;
    top: 0;
    height: 64px;
    background-color: var(--white);
    border-bottom: 1px solid var(--border-light);
    z-index: var(--z-header);
    transition: var(--transition-base);
}

.main-header.sticky {
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-lg);
}

/* Header Logo */
.header-logo {
    flex: 0 0 auto;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.logo-link:hover {
    color: var(--primary-color);
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-display);
    white-space: nowrap;
}

.logo img {
    height: 40px;
    width: auto;
}

/* Main Navigation */
.main-nav {
    flex: 1;
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
}

.nav-link {
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    position: relative;
    display: block;
    padding: 0.5rem 0;
    text-decoration: none;
}

.nav-link:hover,
.nav-link:focus {
    color: inherit; /* keep text color the same */
    text-decoration: none; /* prevent underline on hover */
    background-color: rgba(0, 0, 0, 0.06); /* subtle neutral selection style */
    border-radius: var(--radius-sm);
}

/* Keep active state as indicator without underline */
.nav-link.active {
    color: var(--primary-color);
    text-decoration: none;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    margin: 0 calc(var(--spacing-sm) * -1);
    flex: 0 0 auto;
    transition: var(--transition-fast);
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Hamburger Icon */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: var(--transition-fast);
    border-radius: 1px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Responsive Header */
@media (max-width: 767px) {
    .header-container {
        gap: var(--spacing-md);
    }
    
    .logo-text {
        font-size: var(--font-size-base);
    }
    
    .main-nav {
        flex: 1;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        width: 100%;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        gap: 0;
        padding: var(--spacing-md) 0;
        margin: 0;
        border-bottom: 1px solid var(--border-light);
        z-index: 99;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        display: block;
        width: 100%;
    }
    
    .nav-link.active::after {
        display: none;
    }
    
    .nav-link.active {
        background-color: var(--bg-light);
        border-left: 3px solid var(--primary-color);
        padding-left: calc(var(--spacing-lg) - 3px);
    }
    
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* ===================================
   6. BUTTONS
   =================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    text-align: center;
    user-select: none;
    white-space: normal;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Ensure links styled as buttons never show underline */
.btn,
.btn:hover,
.btn:focus {
    text-decoration: none;
}

/* Any anchor styled as a button should not underline
   Note: Avoid attribute selectors like [class*="btn"] to prevent
   unintended matches (e.g., "ribbon"). Use explicit class selectors. */
a.btn,
a.btn:hover,
a.btn:focus,
a.btn:active,
a.btn:visited {
    text-decoration: none;
}

/* Primary Button */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    border: 2px solid var(--primary-color);
}

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

.btn-primary:active {
    background-color: var(--primary-darker);
    border-color: var(--primary-darker);
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Secondary Button */
.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-secondary:active {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(0);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Large Button */
.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Button Group */
.btn-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* ===================================
   7. CARDS
   =================================== */

.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.card-title {
    font-size: var(--font-size-xl);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.card-text {
    color: var(--text-light);
    line-height: var(--line-height-normal);
}

.card-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

/* ===================================
   8. FOOTER
   =================================== */

.main-footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

/* Force three columns on wider screens when needed */
.footer-content.footer-grid-3 {
    grid-template-columns: repeat(3, minmax(260px, 1fr));
}

.footer-section {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.footer-section h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-bold);
}

.footer-description {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    text-decoration: none;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--white);
    text-decoration: underline;
    transform: translateX(4px);
}

/* Contact Info */
.contact-info {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-info li {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-label {
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-info a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Footer overrides for contact info */
.main-footer .contact-info li {
    color: rgba(255, 255, 255, 0.85);
}

.main-footer .contact-label {
    color: var(--white);
}

.main-footer .contact-info a {
    color: rgba(255, 255, 255, 0.8);
}

.main-footer .contact-info a:hover {
    color: var(--white);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--white);
    transition: var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: var(--spacing-2xl);
    text-align: center;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--line-height-normal);
}

.footer-bottom p {
    margin: 0;
}

/* Responsive Footer */

@media (max-width: 767px) {
    .main-footer {
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
    }
    
    .footer-content {
        gap: var(--spacing-xl);
        grid-template-columns: 1fr;
    }
    
    /* Override footer-grid-3 on mobile to ensure all sections are visible */
    .footer-content.footer-grid-3 {
        grid-template-columns: 1fr;
    }
    
    .footer-section h4 {
        margin-bottom: var(--spacing-md);
        word-break: break-word;
    }
    
    .social-links {
        gap: var(--spacing-sm);
        justify-content: center;
    }
    
    .social-link {
        width: 36px;
        height: 36px;
    }
    
}

/* ===================================
   9. FORMS
   =================================== */

input, textarea, select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    background-color: var(--white);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

input:disabled, textarea:disabled, select:disabled {
    background-color: var(--bg-light);
    cursor: not-allowed;
    opacity: 0.6;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

/* ===================================
   10. UTILITY CLASSES
   =================================== */

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Text Colors */
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-light { color: var(--text-light); }
.text-dark { color: var(--text-dark); }
.text-white { color: var(--white); }

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

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

/* Padding */
.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }
.pt-5 { padding-top: var(--spacing-2xl); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }
.pb-5 { padding-bottom: var(--spacing-2xl); }

.px-1 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-2 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-3 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-4 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

/* Display */
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none !important; }
.invisible { visibility: hidden; }

/* Simple two-column grid */
.grid-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

@media (max-width: 767px) {
    .grid-two {
        grid-template-columns: 1fr;
    }
}

/* Flexbox Utilities */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

/* Width */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-1-2 { width: 50%; }
.w-1-3 { width: 33.333%; }
.w-1-4 { width: 25%; }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Divider */
.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-2xl) 0;
}

/* ===================================
   11. RESPONSIVE UTILITIES
   =================================== */

@media (max-width: 991px) {
    .container {
        padding: 0 var(--container-padding-tablet);
    }
    
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 767px) {
    .container {
        padding: 0 var(--container-padding-mobile);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-light);
        gap: 0;
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu a {
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    /* Mobile button improvements */
    .btn {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .btn-large {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
    }
}

/* ===================================
   12. ACCESSIBILITY
   =================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: more) {
    :root {
        --primary-color: #0052A3;
        --text-dark: #000000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}