/**
* CHECKLIST IMPLEMENTATIONS
* All missing items from MASTER_UX_UI_CHECKLIST.md
* 2025-2026 Complete Implementation
*/

/* ============================================
  COOKIE CONSENT BANNER
  ============================================ */
.cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1.5rem;
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.cookie-consent-banner.show {
    transform: translateY(0);
}

.cookie-consent-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cookie-consent-text {
    flex: 1;
    min-width: 250px;
    color: #fff;
    font-size: 0.9rem;
    line-height: 1.6;
}

.cookie-consent-text a {
    color: #667eea;
    text-decoration: underline;
}

.cookie-consent-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cookie-consent-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

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

.cookie-consent-btn-accept:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.cookie-consent-btn-decline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cookie-consent-btn-decline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cookie-consent-btn-settings {
    background: transparent;
    color: #667eea;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.cookie-consent-btn-settings:hover {
    background: rgba(102, 126, 234, 0.1);
}

@media (max-width: 768px) {
    .cookie-consent-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-consent-actions {
        width: 100%;
        justify-content: center;
    }

    .cookie-consent-btn {
        flex: 1;
        min-width: 120px;
    }
}

/* ============================================
  BACK TO TOP BUTTON
  ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.5);
}

.back-to-top:active {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}

/* ============================================
  SKIP LINKS (Enhanced)
  ============================================ */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    z-index: 10001;
    border-radius: 0 0 8px 0;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* ============================================
  BREADCRUMBS (Enhanced)
  ============================================ */
.breadcrumbs {
    padding: 1rem 0;
    font-size: 0.9rem;
    color: #666;
}

.breadcrumbs-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumbs-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumbs-item:not(:last-child)::after {
    content: '/';
    color: #999;
    margin-left: 0.5rem;
}

.breadcrumbs-link {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs-link:hover {
    color: #764ba2;
    text-decoration: underline;
}

.breadcrumbs-current {
    color: #333;
    font-weight: 600;
}

/* ============================================
  MEGA MENU (If Needed)
  ============================================ */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 1000;
}

.mega-menu.show {
    display: block;
    animation: slideDown 0.3s ease;
}

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

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.mega-menu-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

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

.mega-menu-links li {
    margin-bottom: 0.5rem;
}

.mega-menu-links a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    padding: 0.25rem 0;
}

.mega-menu-links a:hover {
    color: #667eea;
}

/* ============================================
  TAB NAVIGATION (Enhanced)
  ============================================ */
.tab-navigation {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid #e0e0e0;
    margin-bottom: 2rem;
    overflow-x: auto;
}

.tab-button {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: #666;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.tab-button:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.tab-button.active {
    color: #667eea;
    border-bottom-color: #667eea;
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* ============================================
  MASONRY LAYOUT (Optional)
  ============================================ */
.masonry-grid {
    column-count: 3;
    column-gap: 1.5rem;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    page-break-inside: avoid;
}

@media (max-width: 1024px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 768px) {
    .masonry-grid {
        column-count: 1;
    }
}

/* ============================================
  QUOTES (Styled)
  ============================================ */
blockquote.styled-quote {
    border-left: 4px solid #667eea;
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: #555;
    background: rgba(102, 126, 234, 0.05);
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    position: relative;
}

blockquote.styled-quote::before {
    content: '"';
    font-size: 4rem;
    color: rgba(102, 126, 234, 0.2);
    position: absolute;
    top: -10px;
    left: 10px;
    font-family: serif;
}

blockquote.styled-quote cite {
    display: block;
    margin-top: 1rem;
    font-style: normal;
    font-size: 0.9rem;
    color: #667eea;
}

/* ============================================
  TIMELINES (If Needed)
  ============================================ */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
}

.timeline-item {
    position: relative;
    padding-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #667eea;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #667eea;
}

.timeline-date {
    font-size: 0.9rem;
    color: #667eea;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ============================================
  DATE PICKERS (Enhanced)
  ============================================ */
.date-picker-enhanced {
    position: relative;
}

.date-picker-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.date-picker-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ============================================
  FILE UPLOADS (Enhanced)
  ============================================ */
.file-upload-enhanced {
    position: relative;
    border: 2px dashed #e0e0e0;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-upload-enhanced:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.file-upload-enhanced.dragover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.file-upload-icon {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.file-upload-text {
    color: #666;
    margin-bottom: 0.5rem;
}

.file-upload-hint {
    font-size: 0.9rem;
    color: #999;
}

.file-upload-progress {
    margin-top: 1rem;
    display: none;
}

.file-upload-progress.show {
    display: block;
}

/* ============================================
  WARNING STATES
  ============================================ */
.warning-state {
    background: #fff3cd;
    border: 1px solid #ffc107;
    color: #856404;
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.warning-state-icon {
    font-size: 1.5rem;
    color: #ffc107;
}

/* ============================================
  RESPONSIVE DESIGN
  ============================================ */
@media (prefers-reduced-motion: reduce) {
    .cookie-consent-banner,
    .back-to-top,
    .skip-link,
    .mega-menu,
    .tab-content {
        transition: none;
        animation: none;
    }
}