/* 🔥 WEBIKOS - PIXEL-PERFECT TWITTER/X INTERFACE 🔥 */

/* ============ DASHBOARD LAYOUT ============ */
.dashboard {
    display: none;
    min-height: 100vh;
    background: var(--bg-primary);
    transition: all var(--transition-medium);
}

.dashboard.active {
    display: block;
    animation: fadeInUp 0.6s var(--ease-out-cubic);
}

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

/* Perfect 3-column Twitter layout */
.app-main {
    display: grid;
    grid-template-columns: var(--sidebar-width) var(--main-width) var(
            --right-width
        );
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg-primary);
    position: relative;
}

/* ============ HEADER STYLING ============ */
.main-header {
    position: sticky;
    top: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-primary);
    z-index: 2000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    transition: all var(--transition-medium);
}

.main-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        var(--bg-primary) 0%,
        var(--bg-secondary) 100%
    );
    opacity: 0.9;
    z-index: -1;
}

.main-header h1 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-action-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-action-btn:hover {
    background: var(--bg-hover-strong);
    color: var(--text-primary);
    transform: scale(1.05);
}

/* ============ CONTENT SECTIONS ============ */
.content-section {
    display: none;
    animation: fadeIn 0.4s var(--ease-out-cubic);
}

.content-section.active {
    display: block;
}

/* ============ TWEET COMPOSER ============ */
.tweet-composer {
    border-bottom: 1px solid var(--border-primary);
    padding: var(--tweet-padding);
    background: var(--bg-primary);
    transition: var(--transition-fast);
}

.composer-content {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.composer-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-secondary);
    position: relative;
    transition: var(--transition-fast);
}

.composer-avatar:hover {
    transform: scale(1.02);
}

.composer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.composer-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.composer-textarea {
    width: 100%;
    min-height: 56px;
    max-height: 400px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    font-family: inherit;
    resize: none;
    outline: none;
    line-height: var(--line-height-normal);
    transition: var(--transition-fast);
}

.composer-textarea:focus {
    transform: translateY(-1px);
}

.composer-textarea::placeholder {
    color: var(--text-tertiary);
    font-size: var(--font-size-xl);
}

.composer-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid transparent;
    transition: var(--transition-fast);
}

.composer-textarea:focus + .composer-actions {
    border-top-color: var(--border-primary);
}

.composer-tools {
    display: flex;
    gap: 4px;
}

.composer-tool {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: var(--radius-full);
    color: var(--x-blue);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.composer-tool::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--x-blue-light);
    border-radius: var(--radius-full);
    transform: scale(0);
    transition: var(--transition-fast);
}

.composer-tool:hover::before {
    transform: scale(1);
}

.composer-tool:hover {
    transform: scale(1.1);
}

.composer-submit {
    display: flex;
    align-items: center;
    gap: 12px;
}

.char-counter {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.char-count {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-fast);
}

.char-count.warning {
    color: var(--x-yellow);
}

.char-count.danger {
    color: var(--x-red);
}

.char-progress {
    transform: rotate(-90deg);
    transition: var(--transition-medium);
}

.composer-tweet-btn {
    padding: 8px 24px;
    background: var(--x-blue);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-fast);
    opacity: 0.5;
    pointer-events: none;
    position: relative;
    overflow: hidden;
}

.composer-tweet-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: var(--transition-medium);
}

.composer-tweet-btn.active {
    opacity: 1;
    pointer-events: all;
}

.composer-tweet-btn.active:hover {
    background: var(--x-blue-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.composer-tweet-btn.active:hover::before {
    left: 100%;
}

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

/* ============ TWEET COMPONENTS ============ */
.tweets-feed {
    background: var(--bg-primary);
    position: relative;
}

.tweet {
    border-bottom: 1px solid var(--border-primary);
    padding: var(--tweet-padding);
    transition: var(--transition-fast);
    cursor: pointer;
    position: relative;
    background: var(--bg-primary);
    animation: slideInTweet 0.4s var(--ease-out-cubic);
}

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

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

.tweet-content {
    display: flex;
    gap: 12px;
    position: relative;
}

.tweet-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-secondary);
    position: relative;
    transition: var(--transition-fast);
}

.tweet-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 2px var(--x-blue-light);
}

.tweet-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tweet-body {
    flex: 1;
    min-width: 0;
}

.tweet-header {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 4px;
    flex-wrap: wrap;
}

.tweet-author {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: var(--font-size-base);
}

.tweet-author:hover {
    text-decoration: underline;
    color: var(--x-blue);
}

.tweet-username {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
}

.tweet-separator {
    color: var(--text-secondary);
    margin: 0 2px;
}

.tweet-time {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: var(--transition-fast);
}

.tweet-time:hover {
    text-decoration: underline;
}

.tweet-text {
    color: var(--text-primary);
    line-height: var(--line-height-relaxed);
    margin-bottom: 12px;
    word-wrap: break-word;
    font-size: var(--font-size-base);
}

.tweet-text a {
    color: var(--text-link);
    text-decoration: none;
    transition: var(--transition-fast);
}

.tweet-text a:hover {
    text-decoration: underline;
}

.tweet-media {
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 12px;
    border: 1px solid var(--border-primary);
    transition: var(--transition-fast);
}

.tweet-media:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-tweet);
}

.tweet-media img {
    width: 100%;
    height: auto;
    display: block;
}

.tweet-actions {
    display: flex;
    justify-content: space-between;
    max-width: 425px;
    margin-top: 12px;
}

.tweet-action {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: var(--radius-full);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
    position: relative;
    overflow: hidden;
}

.tweet-action::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--radius-full);
    transform: scale(0);
    transition: var(--transition-fast);
}

.tweet-action:hover::before {
    transform: scale(1);
}

.tweet-action:hover {
    transform: scale(1.05);
}

/* Reply action */
.tweet-action.reply:hover::before {
    background: var(--x-blue-light);
}

.tweet-action.reply:hover {
    color: var(--x-blue);
}

/* Retweet action */
.tweet-action.retweet:hover::before {
    background: var(--x-green-light);
}

.tweet-action.retweet:hover {
    color: var(--x-green);
}

.tweet-action.retweeted {
    color: var(--x-green);
}

.tweet-action.retweeted::before {
    background: var(--x-green-light);
    transform: scale(1);
}

/* Like action */
.tweet-action.like:hover::before {
    background: var(--x-red-light);
}

.tweet-action.like:hover {
    color: var(--x-red);
}

.tweet-action.liked {
    color: var(--x-red);
    animation: heartbeat 0.6s var(--ease-bounce);
}

.tweet-action.liked::before {
    background: var(--x-red-light);
    transform: scale(1);
}

/* Bookmark action */
.tweet-action.bookmark:hover::before {
    background: var(--x-blue-light);
}

.tweet-action.bookmark:hover {
    color: var(--x-blue);
}

.tweet-action.bookmarked {
    color: var(--x-blue);
}

.tweet-action.bookmarked::before {
    background: var(--x-blue-light);
    transform: scale(1);
}

/* Share action */
.tweet-action.share:hover::before {
    background: var(--x-blue-light);
}

.tweet-action.share:hover {
    color: var(--x-blue);
}

.action-icon {
    width: 18px;
    height: 18px;
    transition: var(--transition-fast);
}

.action-count {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    min-width: 20px;
    text-align: left;
}

/* ============ PROFILE COMPONENTS ============ */
.profile-header {
    position: relative;
    background: var(--bg-primary);
}

.profile-banner {
    height: 200px;
    background: linear-gradient(135deg, var(--x-blue), var(--x-blue-pressed));
    position: relative;
    overflow: hidden;
}

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

.profile-info {
    padding: 16px;
    position: relative;
    margin-top: -68px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.profile-avatar-large {
    width: 134px;
    height: 134px;
    border-radius: var(--radius-full);
    border: 4px solid var(--bg-primary);
    overflow: hidden;
    background: var(--bg-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.profile-avatar-large:hover {
    transform: scale(1.02);
    box-shadow: 0 0 0 4px var(--x-blue-light);
}

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

.profile-actions {
    display: flex;
    gap: 12px;
}

.btn-secondary {
    padding: 8px 24px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--font-size-base);
}

.btn-secondary:hover {
    background: var(--bg-hover-strong);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.profile-details {
    padding: 0 16px 16px;
}

.profile-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin: 0 0 4px 0;
    line-height: var(--line-height-tight);
}

.profile-handle {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    margin: 0 0 12px 0;
    font-weight: var(--font-weight-normal);
}

.profile-bio {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin: 0 0 12px 0;
}

.profile-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.profile-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.profile-stats {
    display: flex;
    gap: 20px;
    margin-top: 12px;
}

.profile-stat {
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-fast);
    cursor: pointer;
}

.profile-stat:hover {
    text-decoration: underline;
}

.profile-stat strong {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.profile-stat span {
    color: var(--text-secondary);
    margin-left: 4px;
    font-weight: var(--font-weight-normal);
}

.profile-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-primary);
    position: sticky;
    top: var(--header-height);
    z-index: 100;
}

.profile-tab {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    font-size: var(--font-size-base);
}

.profile-tab::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 4px;
    background: var(--x-blue);
    border-radius: var(--radius-full);
    transition: var(--transition-medium);
    transform: translateX(-50%);
}

.profile-tab.active {
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
}

.profile-tab.active::after {
    width: 100%;
}

.profile-tab:hover:not(.active) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ============ WIDGETS STYLING ============ */
.right-sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 20px 0;
}

.widget {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    overflow: hidden;
    transition: var(--transition-fast);
    animation: slideInRight 0.5s var(--ease-out-cubic);
}

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

.widget:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.widget-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-primary);
}

.widget-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin: 0;
}

.widget-content {
    padding: 0;
}

.widget-item {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-primary);
    transition: var(--transition-fast);
    cursor: pointer;
    position: relative;
    background: var(--bg-secondary);
}

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

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

/* Trending items */
.trend-item {
    cursor: pointer;
    padding: 12px 20px;
}

.trend-meta {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: 2px;
    font-weight: var(--font-weight-normal);
}

.trend-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.trend-volume {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
}

/* Follow suggestions */
.follow-suggestion {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
}

.suggestion-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-tertiary);
}

.suggestion-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.suggestion-info {
    flex: 1;
    min-width: 0;
}

.suggestion-name {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-tight);
    margin-bottom: 2px;
}

.suggestion-handle {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
}

.follow-btn {
    padding: 6px 16px;
    background: var(--text-primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.follow-btn:hover {
    background: var(--text-secondary);
    transform: translateY(-1px);
}

.follow-btn.following {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
}

.follow-btn.following:hover {
    background: var(--x-red-light);
    color: var(--x-red);
    border-color: var(--x-red);
}

.follow-btn.following:hover::after {
    content: "Přestat sledovat";
}

.follow-btn.following:hover span {
    display: none;
}

/* Show more links */
.show-more {
    padding: 16px 20px;
    cursor: pointer;
}

.show-more-link {
    color: var(--text-link);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.show-more-link:hover {
    text-decoration: underline;
}

/* Footer links */
.footer-links {
    padding: 16px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    align-items: center;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.footer-link:hover {
    text-decoration: underline;
    color: var(--text-primary);
}

.copyright {
    width: 100%;
    margin-top: 8px;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

/* ============ NOTIFICATIONS ============ */
.notifications-content {
    background: var(--bg-primary);
}

.notification-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: var(--tweet-padding);
    border-bottom: 1px solid var(--border-primary);
    transition: var(--transition-fast);
    cursor: pointer;
}

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

.notification-icon {
    font-size: 24px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-text {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: 4px;
}

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

.notification-time {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ============ EMPTY STATES ============ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-state h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    max-width: 400px;
    margin: 0 auto;
}

/* ============ MORE SECTION ============ */
.more-content {
    padding: 20px;
}

.more-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.more-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: transparent;
    border: none;
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--font-size-lg);
    text-align: left;
    width: 100%;
}

.more-item:hover {
    background: var(--bg-hover-strong);
    transform: translateX(4px);
}

.more-icon {
    font-size: 24px;
    width: 24px;
    display: flex;
    justify-content: center;
}

/* ============ LOADING STATES ============ */
.tweet-skeleton {
    padding: var(--tweet-padding);
    border-bottom: 1px solid var(--border-primary);
    animation: pulse 2s infinite;
}

.tweet-skeleton .tweet-content {
    display: flex;
    gap: 12px;
}

.tweet-skeleton .tweet-avatar {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.tweet-skeleton .tweet-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tweet-skeleton .tweet-header {
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    width: 60%;
}

.tweet-skeleton .tweet-text {
    height: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    width: 85%;
}

.tweet-skeleton .tweet-actions {
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    width: 40%;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-modal);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============ MODAL ENHANCEMENTS ============ */
.modal-overlay {
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    max-height: 90vh;
    animation: modalSlideIn 0.3s var(--ease-out-cubic);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-primary);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--bg-hover-strong);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    background: var(--bg-primary);
}

/* ============ FORM ENHANCEMENTS ============ */
.edit-profile-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border-primary);
}

/* ============ RESPONSIVE DESIGN ============ */
@media (max-width: 1280px) {
    .app-main {
        grid-template-columns: var(--sidebar-width) 1fr;
        max-width: 920px;
    }

    .right-sidebar {
        display: none;
    }
}

@media (max-width: 1000px) {
    .app-main {
        grid-template-columns: 68px 1fr;
    }

    .sidebar {
        width: 68px;
    }

    .sidebar-logo {
        padding: 12px;
    }

    .nav-text {
        display: none;
    }

    .nav-item {
        justify-content: center;
        padding: 12px;
    }

    .sidebar-tweet-btn {
        width: 50px;
        height: 50px;
        border-radius: var(--radius-full);
        padding: 0;
        margin: 16px 9px;
    }

    .tweet-btn-text {
        display: none;
    }

    .tweet-btn-icon {
        display: block;
        font-size: 24px;
    }

    .sidebar-user {
        width: 50px;
        height: 50px;
        padding: 8px;
        margin: 8px 9px;
        border-radius: var(--radius-full);
    }

    .user-details,
    .user-menu-icon {
        display: none;
    }

    .user-avatar {
        margin: 0;
    }
}

@media (max-width: 768px) {
    .app-main {
        display: flex;
        flex-direction: column;
        grid-template-columns: none;
    }

    .sidebar {
        order: 2;
        width: 100%;
        height: auto;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        border-right: none;
        border-top: 1px solid var(--border-primary);
        z-index: 1000;
        padding: 8px;
    }

    .sidebar-content {
        flex-direction: row;
        justify-content: space-around;
        padding: 0;
        align-items: center;
        height: auto;
    }

    .sidebar-logo {
        display: none;
    }

    .sidebar-nav {
        flex-direction: row;
        gap: 0;
        flex: 1;
        justify-content: space-around;
    }

    .nav-item {
        flex-direction: column;
        gap: 4px;
        padding: 8px 4px;
        min-width: 60px;
        text-align: center;
        border-radius: var(--radius-md);
    }

    .nav-icon {
        font-size: 20px;
        margin: 0;
    }

    .nav-text {
        display: block;
        font-size: 10px;
        font-weight: var(--font-weight-medium);
    }

    .sidebar-tweet-btn {
        display: none;
    }

    .sidebar-user {
        display: none;
    }

    .main-content {
        margin-bottom: 70px;
        border-left: none;
        border-right: none;
    }

    .tweet-composer {
        padding: 12px;
    }

    .composer-textarea {
        font-size: var(--font-size-lg);
        min-height: 80px;
    }

    .tweet {
        padding: 12px;
    }

    .profile-banner {
        height: 150px;
    }

    .profile-avatar-large {
        width: 100px;
        height: 100px;
        margin-top: -50px;
    }
}

@media (max-width: 480px) {
    .tweet-composer {
        padding: 8px;
    }

    .composer-content {
        gap: 8px;
    }

    .composer-avatar {
        width: 40px;
        height: 40px;
    }

    .composer-textarea {
        font-size: var(--font-size-base);
    }

    .tweet {
        padding: 8px;
    }

    .tweet-content {
        gap: 8px;
    }

    .tweet-avatar {
        width: 32px;
        height: 32px;
    }

    .tweet-actions {
        max-width: none;
        gap: 8px;
    }

    .tweet-action {
        padding: 6px;
        gap: 4px;
    }

    .action-count {
        font-size: var(--font-size-xs);
    }

    .modal-content {
        margin: 16px;
        max-height: calc(100vh - 32px);
    }

    .modal-header,
    .modal-body {
        padding: 16px;
    }

    .auth-container {
        margin: 16px;
    }

    .container {
        padding: 24px;
    }

    .profile-banner {
        height: 120px;
    }

    .profile-avatar-large {
        width: 80px;
        height: 80px;
        margin-top: -40px;
    }
}

/* ============ HIGH DPI DISPLAYS ============ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .tweet-avatar img,
    .composer-avatar img,
    .suggestion-avatar img,
    .profile-avatar-large img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .tweet-action:hover::before,
    .composer-tool:hover::before,
    .nav-item::before {
        transform: none !important;
    }
}

/* ============ PRINT STYLES ============ */
@media print {
    .sidebar,
    .right-sidebar,
    .theme-toggle,
    .tweet-actions,
    .composer-tools,
    .header-actions {
        display: none !important;
    }

    .main-content {
        border: none !important;
        max-width: none !important;
        margin: 0 !important;
    }

    .tweet {
        break-inside: avoid;
        border-bottom: 1px solid #ccc !important;
        page-break-inside: avoid;
    }

    .tweet-text {
        color: #000 !important;
    }

    .modal-overlay {
        display: none !important;
    }
}

/* ============ DARK MODE SPECIFIC TWEAKS ============ */
:root[data-theme="dark"] .tweet:hover {
    background: rgba(255, 255, 255, 0.03);
}

:root[data-theme="dark"] .widget {
    box-shadow:
        rgba(255, 255, 255, 0.1) 0px 0px 15px,
        rgba(255, 255, 255, 0.05) 0px 0px 3px 1px;
}

:root[data-theme="dark"] .tweet-skeleton .tweet-avatar,
:root[data-theme="dark"] .tweet-skeleton .tweet-header,
:root[data-theme="dark"] .tweet-skeleton .tweet-text,
:root[data-theme="dark"] .tweet-skeleton .tweet-actions {
    background: var(--bg-tertiary);
}

/* ============ ACCESSIBILITY IMPROVEMENTS ============ */
.focus-visible:focus-visible {
    outline: 2px solid var(--x-blue);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Screen reader only 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: 0;
}

/* ============ PERFORMANCE OPTIMIZATIONS ============ */
.tweet-avatar img,
.composer-avatar img,
.suggestion-avatar img {
    will-change: transform;
    backface-visibility: hidden;
}

.tweet,
.widget,
.nav-item {
    will-change: transform, background-color;
    backface-visibility: hidden;
}

/* GPU acceleration for key components */
.sidebar,
.main-content,
.right-sidebar,
.modal-content {
    transform: translateZ(0);
    backface-visibility: hidden;
}