/**
 * VOX AKITA Modern Frontend Styles
 * 
 * Glassmorphism, animations, and modern UI components
 * 
 * @package VOX_AKITA
 * @version 1.0.0
 */

/* ============================================
   Glassmorphism Components
   ============================================ */

.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.2);
    transform: translateY(-4px);
}

.glass-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

/* ============================================
   Gradient Buttons
   ============================================ */

.btn--gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn--gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    transition: left var(--transition-base);
}

.btn--gradient:hover::before {
    left: 100%;
}

.btn--gradient:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.3);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero__inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero__title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero__tagline {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__description {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* ============================================
   Section Styles
   ============================================ */

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

.section--opinions {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.section--events {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.section--ideas {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.section--projects {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.section--instagram {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.section--cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.section__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.section--cta .section__title {
    color: white;
}

.section__link {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.section__link:hover {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* ============================================
   Card Grids
   ============================================ */

.opinion-grid,
.event-grid,
.idea-grid,
.project-grid {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* ============================================
   Opinion Cards (Enhanced)
   ============================================ */

.opinion-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.opinion-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.opinion-card:hover::before {
    transform: scaleY(1);
}

.opinion-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.opinion-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.opinion-card__date {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.opinion-card__body {
    margin-bottom: var(--spacing-md);
}

.opinion-card__content {
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
}

.opinion-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

.opinion-card__stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.stat__icon {
    font-size: var(--font-size-lg);
}

.opinion-card__link {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.opinion-card__link:hover {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* ============================================
   Event Cards
   ============================================ */

.event-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.event-card__date {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.event-card__day {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
}

.event-card__month {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.event-card__body {
    flex: 1;
}

.event-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.event-card__title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.event-card__title a:hover {
    color: var(--color-primary);
}

.event-card__meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   Idea Cards
   ============================================ */

.idea-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-top: 4px solid var(--color-primary);
}

.idea-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.idea-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.idea-card__badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.idea-card__badge--open {
    background-color: var(--color-success);
    color: white;
}

.idea-card__badge--closed {
    background-color: var(--color-gray-400);
    color: white;
}

.idea-card__body {
    margin-bottom: var(--spacing-md);
}

.idea-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.idea-card__title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.idea-card__title a:hover {
    color: var(--color-primary);
}

.idea-card__description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.idea-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

.idea-card__deadline {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   Project Cards
   ============================================ */

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

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.project-card__progress {
    flex: 1;
    margin-left: var(--spacing-md);
}

.progress-bar {
    height: 8px;
    background-color: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.progress-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--border-radius-full);
    transition: width var(--transition-slow);
}

.progress-bar__label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.project-card__body {
    margin-bottom: var(--spacing-md);
}

.project-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.project-card__title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.project-card__title a:hover {
    color: var(--color-primary);
}

.project-card__description {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.project-card__footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

/* ============================================
   Instagram Widget
   ============================================ */

.instagram-widget {
    min-height: 200px;
}

.instagram-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.instagram-post {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: transform var(--transition-base);
}

.instagram-post:hover {
    transform: scale(1.05);
}

.instagram-post__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.instagram-post__video-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-3xl);
    color: white;
    background: rgba(0, 0, 0, 0.5);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.instagram-widget__loading,
.instagram-widget__error {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.cta__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: white;
}

.cta__description {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
}

.cta__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
    background: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.site-logo__text {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.global-nav__list {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.global-nav__link {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.global-nav__link:hover {
    background-color: var(--color-gray-100);
    color: var(--color-primary);
}

.global-nav__item--active .global-nav__link {
    background-color: var(--color-primary);
    color: white;
}

.site-header__user {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.site-footer__inner {
    display: grid;
    gap: var(--spacing-2xl);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.footer-nav__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-nav__list {
    list-style: none;
}

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

.footer-nav__link {
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
}

.footer-nav__link:hover {
    color: white;
}

.site-footer__copyright {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-700);
    font-size: var(--font-size-sm);
}

.site-footer__tagline {
    margin-top: var(--spacing-xs);
    color: var(--color-gray-400);
}

/* ============================================
   Skip Link (Accessibility)
   ============================================ */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* AOS Animation Classes */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-down"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ============================================
   Mobile Menu
   ============================================ */

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle__bar {
    width: 24px;
    height: 3px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .opinion-grid,
    .event-grid,
    .idea-grid,
    .project-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .instagram-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .section__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .opinion-grid,
    .idea-grid,
    .project-grid {
        grid-template-columns: 1fr;
    }
    
    .event-grid {
        grid-template-columns: 1fr;
    }
    
    .event-card {
        flex-direction: column;
    }
    
    .event-card__date {
        width: 100%;
        height: 60px;
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .instagram-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .global-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero__actions,
    .cta__actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero__actions .btn,
    .cta__actions .btn {
        width: 100%;
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .instagram-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card__header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .project-card__progress {
        margin-left: 0;
        margin-top: var(--spacing-sm);
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .site-header,
    .site-footer,
    .hero__actions,
    .cta,
    .btn,
    .mobile-menu-toggle {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .opinion-card,
    .event-card,
    .idea-card,
    .project-card {
        box-shadow: none;
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
}

/* ============================================
   Focus Management & Accessibility
   ============================================ */

/* Visible focus indicator for keyboard navigation */
.keyboard-nav *:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Hide focus outline for mouse users */
body:not(.keyboard-nav) *:focus {
    outline: none;
}

/* Focus styles for interactive elements */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link:focus {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 9999;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Form Validation & Error Display
   ============================================ */

/* Invalid field styles */
.is-invalid {
    border-color: var(--color-danger) !important;
    background-color: rgba(220, 53, 69, 0.05);
}

.is-invalid:focus {
    outline-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* Field error message */
.field-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    animation: slideInDown 0.3s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Success field styles */
.is-valid {
    border-color: var(--color-success) !important;
    background-color: rgba(40, 167, 69, 0.05);
}

.field-success {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

/* Form group with error */
.form-group--error .form-label {
    color: var(--color-danger);
}

/* ARIA live region for dynamic content */
.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;
}

/* Alert messages with ARIA live */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    animation: slideInDown 0.3s ease-out;
}

.alert--success {
    background-color: rgba(40, 167, 69, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert--error {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.alert--warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: var(--color-warning);
    color: #856404;
}

.alert--info {
    background-color: rgba(23, 162, 184, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

.alert__title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.alert__message {
    line-height: var(--line-height-relaxed);
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.spinner--large {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

/* Button loading state */
.btn--loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn--loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.6s linear infinite;
}

/* Tooltip for accessibility */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip__content {
    visibility: hidden;
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-gray-900);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    z-index: var(--z-tooltip);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.tooltip__content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-gray-900);
}

.tooltip:hover .tooltip__content,
.tooltip:focus .tooltip__content {
    visibility: visible;
    opacity: 1;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .opinion-card,
    .event-card,
    .idea-card,
    .project-card {
        border: 2px solid var(--color-gray-900);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero::before {
        animation: none;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #1a1a1a;
        --color-bg-secondary: #2d2d2d;
        --color-text-primary: #f0f0f0;
        --color-text-secondary: #b0b0b0;
    }
    
    .opinion-card,
    .event-card,
    .idea-card,
    .project-card {
        background-color: var(--color-bg-secondary);
        color: var(--color-text-primary);
    }
}