/* ============================================
   Profile Page Styles
   Note: Design System variables are loaded from design-system.css
   ============================================ */

/* Profile Container */
.profile-page-innovative {
    min-height: 100vh;
    background: var(--white);
    max-width: 100%;
    margin: 0;
    width: 100%;
}

/* Cover Photo Section - Twitter/Instagram Style */
.profile-cover-section {
    position: relative;
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

.profile-cover-default {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    position: relative;
}

.profile-cover-default::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.profile-cover-section img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-cover-actions {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    z-index: 10;
}

.cover-action-btn {
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
}

.cover-action-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* Profile Info Section - Twitter Style */
.profile-info-section {
    position: relative;
    max-width: 100%;
    padding: 0;
}

.profile-header-content {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar-container {
    position: relative;
    padding: 0 var(--spacing-4);
    margin-top: -80px;
    margin-bottom: var(--spacing-4);
}

.profile-avatar-wrapper {
    position: relative;
    display: inline-block;
    width: 140px;
    height: 140px;
}

.profile-avatar-large-innovative {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid var(--white);
    object-fit: cover;
    background: var(--gray-200);
    box-shadow: var(--shadow-lg);
}

.profile-avatar-edit-btn {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-green);
    color: var(--white);
    border: 3px solid var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.profile-avatar-edit-btn:hover {
    background: var(--primary-green-dark);
    transform: scale(1.1);
}

.profile-header-info {
    padding: 0 var(--spacing-4) var(--spacing-4);
}

.profile-actions-top {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-4);
    gap: var(--spacing-2);
}

.btn-profile-action {
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    border: 1px solid var(--border-color);
    background: var(--white);
    color: var(--gray-900);
}

.btn-profile-action:hover {
    background: var(--hover-bg);
}

.btn-profile-action.primary {
    background: var(--gray-900);
    color: var(--white);
    border-color: var(--gray-900);
}

.btn-profile-action.primary:hover {
    background: var(--gray-800);
}

.profile-name-innovative {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-1) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    line-height: 1.2;
}

.profile-username-innovative {
    font-size: 0.9375rem;
    color: var(--gray-500);
    margin: 0 0 var(--spacing-4) 0;
}

.profile-bio-text {
    font-size: 0.9375rem;
    color: var(--gray-900);
    line-height: 1.6;
    margin: 0 0 var(--spacing-4) 0;
    white-space: pre-wrap;
}

.profile-meta-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    font-size: 0.875rem;
    color: var(--gray-500);
}

.profile-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.profile-meta-item i {
    font-size: 1rem;
}

/* Statistics - Twitter Style */
.profile-stats-row {
    display: flex;
    gap: var(--spacing-6);
    padding: var(--spacing-4) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.profile-stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    transition: color var(--transition-normal);
    text-decoration: none;
    color: var(--gray-900);
}

.profile-stat-item:hover {
    color: var(--primary-green);
    text-decoration: underline;
}

.stat-number {
    font-weight: 700;
    font-size: 0.9375rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.profile-stat-item:hover .stat-label {
    color: var(--primary-green);
}

/* Tabs Navigation - Twitter Style */
.profile-tabs-wrapper {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.85);
}

.profile-tabs-nav {
    display: flex;
    max-width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.profile-tabs-nav::-webkit-scrollbar {
    display: none;
}

.profile-tab-btn {
    flex: 1;
    min-width: 120px;
    padding: var(--spacing-4) var(--spacing-4);
    background: transparent;
    border: none;
    color: var(--gray-600);
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    position: relative;
    border-bottom: 2px solid transparent;
}

.profile-tab-btn:hover {
    background: var(--hover-bg);
    color: var(--gray-900);
}

.profile-tab-btn.active {
    color: var(--gray-900);
    border-bottom-color: var(--primary-green);
}

/* Tab Content */
.profile-tab-content {
    display: none;
    max-width: 100%;
    background: var(--white);
}

.profile-tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

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

/* Content Cards - Twitter Style */
.profile-content-card {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.profile-content-card:hover {
    background: var(--hover-bg);
}

.content-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-4);
}

.content-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* Posts List - Twitter Style */
.posts-list-mini {
    display: flex;
    flex-direction: column;
}

.post-item-mini {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.post-item-mini:hover {
    background: var(--hover-bg);
}

.post-item-mini:last-child {
    border-bottom: none;
}

.post-item-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-2);
}

.post-item-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.post-item-author {
    flex: 1;
    min-width: 0;
}

.post-item-author-name {
    font-weight: 700;
    color: var(--gray-900);
    font-size: 0.9375rem;
    margin: 0;
}

.post-item-author-time {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

.post-item-content {
    margin: var(--spacing-2) 0;
}

.post-item-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-2) 0;
    line-height: 1.5;
}

.post-item-text {
    font-size: 0.9375rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
    word-break: break-word;
}

.post-item-footer {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--border-color);
}

.post-item-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: 0.875rem;
    color: var(--gray-500);
    cursor: pointer;
    transition: color var(--transition-normal);
}

.post-item-stat:hover {
    color: var(--primary-green);
}

.post-item-stat i {
    font-size: 1rem;
}

/* Courses Grid - Instagram Style */
.courses-grid-innovative {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-4);
    padding: var(--spacing-4);
}

.course-card-innovative {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.course-card-innovative:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-green);
}

.course-thumbnail-innovative {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: var(--gray-200);
}

.course-card-content {
    padding: var(--spacing-4);
}

.course-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-2) 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.course-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-top: var(--spacing-3);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--border-color);
    font-size: 0.8125rem;
    color: var(--gray-600);
}

/* Sessions List */
.sessions-list-innovative {
    display: flex;
    flex-direction: column;
}

.session-card-innovative {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.session-card-innovative:hover {
    background: var(--hover-bg);
}

.session-card-innovative:last-child {
    border-bottom: none;
}

.session-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-3);
}

.session-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.session-user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.session-status-badge {
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.session-status-badge.pending {
    background: #fef3c7;
    color: #92400e;
}

.session-status-badge.accepted {
    background: #d1fae5;
    color: #065f46;
}

.session-status-badge.rejected {
    background: #fee2e2;
    color: #991b1b;
}

.session-status-badge.completed {
    background: #dbeafe;
    color: #1e40af;
}

/* Followers Grid - Instagram Style */
.followers-grid-innovative {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-4);
    padding: var(--spacing-4);
}

.follower-card-innovative {
    text-align: center;
    padding: var(--spacing-4);
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.follower-card-innovative:hover {
    transform: scale(1.05);
}

.follower-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-3);
    border: 2px solid var(--border-color);
}

.follower-name {
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-1) 0;
    font-size: 0.875rem;
}

.follower-title {
    font-size: 0.8125rem;
    color: var(--gray-600);
    margin: 0;
}

/* Empty State */
.empty-state-innovative {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-4);
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-4);
}

.empty-state-text {
    font-size: 1rem;
    margin: 0;
    color: var(--gray-600);
}

/* Interests Chips */
.interests-grid-innovative {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.interest-chip-innovative {
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.interest-chip-innovative:hover {
    background: var(--primary-green);
    color: var(--white);
    border-color: var(--primary-green);
}

/* Right Sidebar Styles for Profile */
.user-quick-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.quick-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
    transition: background var(--transition-normal);
}

.quick-info-item:hover {
    background: var(--hover-bg);
}

.quick-info-item i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    color: var(--primary-green);
    font-size: 0.875rem;
}

.quick-info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 2px;
}

.quick-info-value {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* Detailed Statistics */
.detailed-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.stat-detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.stat-detail-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transform: translateX(-2px);
}

.stat-detail-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-detail-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-detail-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-detail-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Suggested Users */
.suggested-users-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.suggested-user-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
    transition: background var(--transition-normal);
}

.suggested-user-item:hover {
    background: var(--hover-bg);
}

.suggested-user-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    flex: 1;
    text-decoration: none;
    color: inherit;
}

.suggested-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.suggested-user-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.suggested-user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
}

.suggested-user-title {
    font-size: 0.75rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.follow-btn-small {
    padding: var(--spacing-1) var(--spacing-3);
    background: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.follow-btn-small:hover {
    background: var(--primary-green-dark);
    transform: scale(1.05);
}

/* Suggested Courses */
.suggested-courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.suggested-course-item {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.suggested-course-item:hover {
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.suggested-course-thumbnail {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--gray-200);
}

.suggested-course-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.suggested-course-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.suggested-course-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.suggested-course-expert {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin: 0;
}

.suggested-course-meta {
    display: flex;
    gap: var(--spacing-3);
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.suggested-course-meta i {
    font-size: 0.625rem;
}

/* Recent Activity */
.recent-activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.activity-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.activity-section-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-2) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.activity-section-title i {
    color: var(--primary-green);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: background var(--transition-normal);
}

.activity-item:hover {
    background: var(--hover-bg);
}

.activity-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    color: var(--primary-green);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.activity-text {
    font-size: 0.875rem;
    color: var(--gray-900);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Quick Links */
.quick-links-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.quick-link-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--gray-700);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.quick-link-item:hover {
    background: var(--hover-bg);
    border-color: var(--primary-green);
    color: var(--primary-green);
    transform: translateX(-2px);
}

.quick-link-item i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    color: var(--primary-green);
    font-size: 0.875rem;
    transition: all var(--transition-normal);
}

.quick-link-item:hover i {
    background: var(--primary-green);
    color: var(--white);
}

.quick-link-item span {
    font-size: 0.875rem;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .profile-cover-section {
        height: 150px;
    }

    .profile-avatar-container {
        margin-top: -60px;
    }

    .profile-avatar-large-innovative {
        width: 100px;
        height: 100px;
    }

    .profile-avatar-wrapper {
        width: 100px;
        height: 100px;
    }

    .profile-name-innovative {
        font-size: 1.125rem;
    }

    .profile-stats-row {
        flex-wrap: wrap;
        gap: var(--spacing-4);
    }

    .courses-grid-innovative {
        grid-template-columns: 1fr;
    }

    .followers-grid-innovative {
        grid-template-columns: repeat(2, 1fr);
    }

    .profile-tab-btn {
        min-width: 100px;
        padding: var(--spacing-3) var(--spacing-2);
        font-size: 0.875rem;
    }

    /* Hide sidebar on mobile - already handled by language-learning.css */
    .left-sidebar-nav {
        display: none !important;
    }
}