:root {
    --primary-color: #4361ee;
    --primary-light: #4895ef;
    --primary-dark: #3a0ca3;
    --secondary-color: #7209b7;
    --success-color: #4cc9f0;
    --warning-color: #f72585;
    --danger-color: #ef233c;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --gray-light: #e9ecef;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --body-bg: #f8fafc;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --youtube-red: #FF0000;
    --instagram-pink: #E4405F;
    --glow-color: rgba(255, 215, 0, 0.3);
}

[data-theme="dark"] {
    --primary-color: #4895ef;
    --primary-light: #5aa3f1;
    --primary-dark: #3a0ca3;
    --secondary-color: #9d4edd;
    --light-color: #121212;
    --dark-color: #f8f9fa;
    --body-bg: #0a0a0a;
    --card-bg: #1a1a1a;
    --border-color: #333333;
    --gray-light: #2d2d2d;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
    --glow-color: rgba(255, 215, 0, 0.2);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--body-bg);
    color: var(--dark-color);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 16px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header Styles - Mobile First */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(67, 97, 238, 0.95);
}

.header .container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
}

.logo i {
    font-size: 1.8rem;
    color: white;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px;
    border-radius: 8px;
    flex-shrink: 0;
}

.logo-text {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    background: linear-gradient(to right, white, #e0e0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.header-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

.search-container {
    position: relative;
    width: 100%;
}

.search-container i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-color);
    z-index: 1;
}

#searchInput {
    padding: 10px 14px 10px 42px;
    border: none;
    border-radius: 20px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    color: var(--dark-color);
    font-size: 0.9rem;
    transition: var(--transition);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

#searchInput:focus {
    outline: none;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.2);
    background: white;
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    justify-content: space-between;
}

.btn-icon {
    padding: 8px;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon i {
    font-size: 1rem;
}

.auth-section {
    display: flex;
    align-items: center;
}

.login-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.login-btn .btn-text {
    display: inline;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.user-details {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 150px;
}

.user-details i {
    font-size: 1rem;
}

.user-email {
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Announcement Banner - Mobile Optimized */
.announcement-banner {
    background: linear-gradient(135deg, 
        rgba(67, 97, 238, 0.1), 
        rgba(114, 9, 183, 0.1), 
        rgba(244, 114, 182, 0.1));
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.announcement-content {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
}

.announcement-main {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    width: 100%;
    justify-content: center;
}

.announcement-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.9);
    padding: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.announcement-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}

.highlight {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-dark);
    line-height: 1.3;
}

.subscribe-text {
    font-size: 0.85rem;
    color: var(--dark-color);
    font-weight: 500;
}

.subscribe-text strong {
    color: var(--primary-color);
}

.announcement-links {
    display: flex;
    gap: 0.8rem;
    width: 100%;
    justify-content: center;
}

.announcement-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.8rem;
    transition: var(--transition);
    border: 1px solid transparent;
    flex: 1;
    justify-content: center;
    max-width: 140px;
}

.youtube-link {
    background: linear-gradient(135deg, var(--youtube-red), #cc0000);
    color: white;
}

.instagram-link {
    background: linear-gradient(135deg, var(--instagram-pink), #c13584);
    color: white;
}

.announcement-link i {
    font-size: 0.9rem;
}

/* Progress Summary - Mobile Optimized */
.progress-summary {
    padding: 1.5rem 0;
    background: linear-gradient(to bottom, var(--body-bg), transparent);
}

.summary-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card {
    background: var(--card-bg);
    padding: 1.5rem 1rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.progress-card {
    order: -1;
}

.progress-circle {
    width: 100px;
    height: 100px;
    margin: 1rem auto;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0% 0%, var(--gray-light) 0% 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 84px;
    height: 84px;
    background: var(--card-bg);
    border-radius: 50%;
}

.progress-text {
    position: relative;
    z-index: 1;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.card h3 {
    color: var(--dark-color);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.count {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
    line-height: 1;
}

.card p {
    color: var(--gray-color);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* Filters - Mobile Optimized */
.filters {
    background: var(--card-bg);
    padding: 1rem 0;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.filters-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-row {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-weight: 500;
    color: var(--dark-color);
    font-size: 0.85rem;
}

.filter-group select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--card-bg);
    color: var(--dark-color);
    width: 100%;
    font-size: 0.9rem;
    cursor: pointer;
}

.filter-buttons {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
}

.filter-buttons .btn {
    flex: 1;
    max-width: 120px;
    padding: 8px 12px;
    font-size: 0.85rem;
    justify-content: center;
}

/* Sections - Mobile Optimized */
.sections-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.section {
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.section-header {
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.section-header h2 {
    margin: 0;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    flex: 1;
}

.section-header i:not(.fa-chevron-down) {
    font-size: 1rem;
}

.section-header i.fa-chevron-down {
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.section.collapsed .section-header i.fa-chevron-down {
    transform: rotate(-90deg);
}

.section-progress {
    display: none;
}

.section-content {
    padding: 1rem;
    display: none;
    animation: slideDown 0.3s ease-out;
    overflow-x: auto;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
    min-width: 600px;
}

thead {
    background: var(--gray-light);
}

th, td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

th {
    font-weight: 600;
    color: var(--dark-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

tbody tr {
    transition: var(--transition);
}

.status-select {
    padding: 6px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--dark-color);
    width: 100%;
    font-size: 0.85rem;
    cursor: pointer;
}

.notes-input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--dark-color);
    font-size: 0.85rem;
    resize: vertical;
    min-height: 36px;
    max-height: 80px;
}

.links-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 120px;
}

.link-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--gray-light);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.link-btn i {
    font-size: 0.8rem;
}

.difficulty-badge {
    padding: 4px 8px;
    border-radius: 12px;
    background-color: #c13584;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
    min-width: 60px;
}

/* Color coding for rows */
tr[data-status="not-started"] {
    background-color: rgba(108, 117, 125, 0.08);
}

tr[data-status="in-progress"] {
    background-color: rgba(255, 193, 7, 0.08);
}

tr[data-status="completed"] {
    background-color: rgba(40, 167, 69, 0.08);
}

/* Button Styles */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    cursor: pointer;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
    font-size: 0.9rem;
    white-space: nowrap;
}

.btn:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-sm .btn-text {
    display: inline;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 400px;
    animation: modalSlideIn 0.3s ease;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.modal-header {
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--dark-color);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--card-bg);
    color: var(--dark-color);
    font-size: 0.95rem;
}

.btn-google {
    background: #db4437;
    color: white;
    width: 100%;
    justify-content: center;
    padding: 10px;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.divider {
    text-align: center;
    margin: 1rem 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.divider span {
    background: var(--card-bg);
    padding: 0 12px;
    position: relative;
    color: var(--gray-color);
    font-size: 0.85rem;
}

.auth-note {
    font-size: 0.85rem;
    color: var(--gray-color);
    margin-top: 1rem;
    text-align: center;
    padding: 10px;
    background: rgba(67, 97, 238, 0.05);
    border-radius: var(--border-radius-sm);
    border: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* Footer */
.footer {
    background: var(--card-bg);
    padding: 2rem 0 1.5rem;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.footer-section h3 {
    color: var(--dark-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-color);
}

.footer-section p {
    color: var(--gray-color);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: white;
    font-size: 1rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-link.youtube-link {
    background: var(--youtube-red);
}

.social-link.instagram-link {
    background: var(--instagram-pink);
}

.copyright {
    font-size: 0.8rem;
    color: var(--gray-color);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.creator-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.creator-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    padding: 8px 12px;
    background: rgba(67, 97, 238, 0.05);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    transition: var(--transition);
}

.creator-link:hover {
    background: rgba(67, 97, 238, 0.1);
}

.creator-link i {
    font-size: 1rem;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    left: 1rem;
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--border-radius-sm);
    z-index: 10000;
    animation: slideIn 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Tablet and larger screens */
@media (min-width: 768px) {
    body {
        font-size: 17px;
    }
    
    .header .container {
        flex-direction: row;
        align-items: center;
        gap: 1.5rem;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .logo i {
        font-size: 2rem;
        padding: 10px;
    }
    
    .logo-text {
        font-size: 1.6rem;
    }
    
    .header-controls {
        flex-direction: row;
        align-items: center;
        flex: 1;
    }
    
    .search-container {
        flex: 1;
        max-width: 300px;
    }
    
    .header-buttons {
        gap: 1rem;
        justify-content: flex-end;
    }
    
    .announcement-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .announcement-main {
        width: auto;
        justify-content: flex-start;
    }
    
    .announcement-text {
        text-align: left;
    }
    
    .highlight {
        font-size: 1rem;
    }
    
    .announcement-links {
        width: auto;
        flex-direction: row;
    }
    
    .announcement-link {
        padding: 8px 16px;
        font-size: 0.9rem;
        max-width: none;
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .progress-card {
        grid-column: span 2;
    }
    
    .filters-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    
    .filter-row {
        flex-direction: row;
        gap: 1.5rem;
        flex: 1;
    }
    
    .filter-group {
        flex-direction: row;
        align-items: center;
        gap: 10px;
    }
    
    .filter-group select {
        width: auto;
        min-width: 140px;
    }
    
    .section-progress {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.9rem;
        background: rgba(255, 255, 255, 0.2);
        padding: 4px 12px;
        border-radius: 16px;
    }
    
    .progress-bar {
        width: 80px;
        height: 6px;
    }
    
    .section-header h2 {
        font-size: 1.2rem;
        gap: 10px;
    }
    
    table {
        min-width: auto;
    }
    
    th, td {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .footer-section {
        flex: 1;
    }
    
    .toast {
        left: auto;
        right: 1rem;
        max-width: 300px;
    }
}

/* Desktop screens */
@media (min-width: 992px) {
    .summary-cards {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .progress-card {
        grid-column: span 1;
    }
    
    .progress-circle {
        width: 120px;
        height: 120px;
    }
    
    .progress-circle::before {
        width: 100px;
        height: 100px;
    }
    
    .progress-text {
        font-size: 1.6rem;
    }
    
    .section-header h2 {
        font-size: 1.3rem;
    }
    
    .filter-group select {
        min-width: 160px;
    }
}

/* Large desktop screens */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
        padding: 0 30px;
    }
    
    .logo {
        font-size: 1.6rem;
    }
    
    .logo i {
        font-size: 2.2rem;
        padding: 12px;
    }
    
    .logo-text {
        font-size: 1.8rem;
    }
    
    .summary-cards {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }
    
    .card {
        padding: 2rem;
    }
    
    .progress-circle {
        width: 140px;
        height: 140px;
    }
    
    .progress-circle::before {
        width: 120px;
        height: 120px;
    }
    
    .progress-text {
        font-size: 1.8rem;
    }
}
/* Laptop/Desktop screens (min-width: 992px) */
@media (min-width: 992px) {
    /* Header - Clean Professional Design */
    .header {
        padding: 0.8rem 0;
        background: var(--primary-color);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .header .container {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 2rem;
        padding: 0 2rem;
    }

    /* Logo Section */
    .logo {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        text-decoration: none;
    }

    .logo i {
        font-size: 1.8rem;
        color: white;
        background: rgba(255, 255, 255, 0.1);
        padding: 0.5rem;
        border-radius: 8px;
    }

    .logo-text {
        font-size: 1.4rem;
        font-weight: 600;
        color: white;
        margin: 0;
    }

    /* Search Bar */
    .search-container {
        width: 100%;
        max-width: 500px;
        justify-self: center;
    }

    #searchInput {
        width: 100%;
        padding: 0.75rem 1rem 0.75rem 3rem;
        border: none;
        border-radius: 25px;
        background: rgba(255, 255, 255, 0.95);
        font-size: 0.95rem;
        color: var(--dark-color);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
    }

    #searchInput:focus {
        outline: none;
        background: white;
        box-shadow: 0 4px 15px rgba(67, 97, 238, 0.2);
        transform: translateY(-1px);
    }

    .search-container i {
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--primary-color);
        font-size: 1rem;
    }

    /* Header Controls */
    .header-controls {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .header-buttons {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .btn-icon {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: white;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
    }

    .btn-icon:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: translateY(-2px);
    }

    /* Auth Section */
    .auth-section {
        display: flex;
        align-items: center;
    }

    .login-btn {
        padding: 0.6rem 1.5rem;
        background: white;
        color: var(--primary-color);
        border: none;
        border-radius: 20px;
        font-weight: 600;
        font-size: 0.9rem;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        white-space: nowrap;
    }

    .login-btn:hover {
        background: #f8f9fa;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        transform: translateY(-2px);
    }

    .btn-text {
        display: inline;
    }

    /* User Info */
    .user-info {
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .user-details {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.5rem 1rem;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        max-width: 220px;
    }

    .user-details i {
        font-size: 0.9rem;
        color: white;
    }

    .user-email {
        font-size: 0.85rem;
        color: white;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* Announcement Banner - Desktop */
    .announcement-banner {
        background: linear-gradient(135deg, 
            rgba(67, 97, 238, 0.1), 
            rgba(114, 9, 183, 0.1));
        padding: 0.8rem 0;
    }

    .announcement-content {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
    }

    .announcement-main {
        display: flex;
        align-items: center;
        gap: 1rem;
        flex: 1;
    }

    .announcement-icon {
        font-size: 1.2rem;
        color: var(--primary-color);
        background: white;
        padding: 0.5rem;
        border-radius: 50%;
        box-shadow: 0 2px 8px rgba(67, 97, 238, 0.2);
    }

    .announcement-text {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
    }

    .highlight {
        font-size: 1rem;
        font-weight: 600;
        color: var(--primary-dark);
    }

    .subscribe-text {
        font-size: 0.9rem;
        color: var(--gray-color);
    }

    .announcement-links {
        display: flex;
        gap: 1rem;
    }

    .announcement-link {
        padding: 0.6rem 1.2rem;
        border-radius: 20px;
        font-weight: 600;
        font-size: 0.9rem;
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        transition: all 0.3s ease;
    }

    .announcement-link:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    /* Dark Theme Adjustments */
    [data-theme="dark"] .header {
        background: var(--primary-color);
    }

    [data-theme="dark"] #searchInput {
        background: rgba(255, 255, 255, 0.1);
        color: white;
    }

    [data-theme="dark"] #searchInput:focus {
        background: rgba(255, 255, 255, 0.15);
    }

    [data-theme="dark"] #searchInput::placeholder {
        color: rgba(255, 255, 255, 0.6);
    }

    [data-theme="dark"] .btn-icon {
        background: rgba(255, 255, 255, 0.1);
    }

    [data-theme="dark"] .user-details {
        background: rgba(255, 255, 255, 0.05);
    }
}

/* Large desktop screens (min-width: 1200px) */
@media (min-width: 1200px) {
    .header .container {
        padding: 0 3rem;
        gap: 3rem;
    }

    .logo-text {
        font-size: 1.5rem;
    }

    .logo i {
        font-size: 2rem;
    }

    .search-container {
        max-width: 600px;
    }

    .header-controls {
        gap: 1.5rem;
    }

    .announcement-content {
        gap: 3rem;
    }
}

/* Extra large screens (min-width: 1400px) */
@media (min-width: 1400px) {
    .header .container {
        max-width: 1400px;
        margin: 0 auto;
    }
}

/* Summary Cards Layout for Desktop */
@media (min-width: 992px) {
    .summary-cards {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
    }

    .progress-card {
        grid-column: span 1;
    }
}