:root {
    color-scheme: light;
    --bg: #ffffff;
    --soft: #f7f9f9;
    --text: #0f1419;
    --muted: #536471;
    --line: #eff3f4;
    --line-strong: #cfd9de;
    --accent: #1d9bf0;
    --green: #00ba7c;
    --pink: #f91880;
    --button: #0f1419;
}

* {
    box-sizing: border-box;
}

html {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

body {
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-shell {
    display: grid;
    grid-template-columns: minmax(88px, 280px) minmax(0, 680px) minmax(320px, 430px);
    justify-content: center;
    min-height: 100vh;
}

.timeline {
    border-left: 1px solid var(--line);
    border-right: 1px solid var(--line);
    min-width: 0;
}

.rail {
    position: sticky;
    top: 0;
    align-self: start;
    height: 100vh;
}

.rail-left {
    display: flex;
    flex-direction: column;
    width: 280px;
    padding: 10px 32px 12px 8px;
}

.rail-right {
    width: 430px;
    padding: 12px 0 0 34px;
}

.icon {
    width: 26px;
    height: 26px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.icon-x {
    width: 32px;
    height: 32px;
    fill: currentColor;
    stroke: none;
}

.verified-icon {
    display: inline-block;
    width: .95em;
    height: .95em;
    vertical-align: -.12em;
    fill: var(--accent);
}

.verified-icon path + path {
    fill: none;
    stroke: #fff;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.inline-icon {
    width: 18px;
    height: 18px;
    vertical-align: -.2em;
}

.brand {
    display: inline-grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border-radius: 999px;
    margin-left: 4px;
}

.brand:hover,
.nav-item:hover,
.account-chip:hover {
    background: var(--soft);
}

.primary-nav {
    display: grid;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 20px;
    width: fit-content;
    min-height: 54px;
    border-radius: 999px;
    padding: 0 18px 0 14px;
    font-size: 25px;
    line-height: 1;
}

.nav-item.active {
    font-weight: 700;
}

.post-button {
    display: grid;
    place-items: center;
    width: 100%;
    height: 58px;
    margin-top: 16px;
    border-radius: 999px;
    background: var(--button);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
}

.account-chip {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 24px;
    gap: 12px;
    align-items: center;
    margin-top: auto;
    padding: 10px;
    border-radius: 999px;
}

.account-chip .avatar {
    width: 42px;
    height: 42px;
}

.account-chip strong,
.account-chip span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.account-chip span {
    color: var(--muted);
}

.timeline-topbar,
.detail-topbar {
    position: sticky;
    top: 0;
    z-index: 5;
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) auto;
    align-items: center;
    min-height: 60px;
    padding: 0 16px;
    border-bottom: 1px solid rgba(239, 243, 244, .85);
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(12px);
}

.timeline-topbar h1,
.detail-topbar p {
    margin: 0;
    font-size: 24px;
    line-height: 1.05;
}

.timeline-topbar p,
.detail-topbar span,
.handle,
.profile-meta,
.tweet header,
.tweet-actions,
.tweet-meta {
    color: var(--muted);
}

.timeline-topbar p,
.detail-topbar span {
    margin: 2px 0 0;
    font-size: 16px;
}

.topbar-actions {
    display: flex;
    gap: 22px;
    color: var(--text);
}

.back-link {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    font-size: 26px;
}

.back-link:hover {
    background: var(--soft);
}

.profile-banner {
    height: 228px;
    background: #cfd9de;
    overflow: hidden;
}

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

.profile-body {
    padding: 0 20px 18px;
}

.profile-avatar-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    min-height: 92px;
}

.avatar {
    width: 48px;
    height: 48px;
    flex: 0 0 auto;
    border-radius: 50%;
    object-fit: cover;
    background: #d7dbdc;
}

.profile-avatar-row .avatar {
    width: 146px;
    height: 146px;
    margin-top: -73px;
    border: 4px solid #fff;
}

.avatar-fallback {
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #d07476, #5798d5);
    color: #fff;
    font-size: 24px;
    font-weight: 800;
}

.profile-avatar-row .avatar-fallback {
    font-size: 58px;
}

.follow-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 118px;
    height: 42px;
    margin-top: 14px;
    padding: 0 18px;
    border-radius: 999px;
    background: var(--button);
    color: #fff;
    font-weight: 800;
}

.follow-button.outline {
    border: 1px solid var(--line-strong);
    background: #fff;
    color: var(--text);
}

.x-follow-widget {
    min-width: 118px;
    min-height: 42px;
    margin-top: 14px;
}

.profile h2 {
    margin: 2px 0 0;
    font-size: 25px;
    line-height: 1.15;
}

.handle,
.bio,
.profile-meta,
.profile-stats,
.translation {
    margin: 4px 0 0;
}

.translation {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent);
}

.translation .icon {
    width: 18px;
    height: 18px;
}

.bio {
    margin-top: 12px;
    line-height: 1.45;
}

.profile-meta,
.profile-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--muted);
}

.profile-meta {
    margin-top: 12px;
}

.profile-stats {
    margin-top: 12px;
}

.profile-meta a {
    color: var(--accent);
}

.profile-stats strong {
    color: var(--text);
}

.tabs {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
}

.tabs a {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 56px;
    color: var(--muted);
    font-weight: 700;
}

.tabs a:hover,
.tweet:hover {
    background: rgba(247, 249, 249, .72);
}

.tabs a.active {
    color: var(--text);
}

.tabs a.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    width: 64px;
    height: 4px;
    border-radius: 999px;
    background: var(--accent);
}

.tweet {
    position: relative;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--line);
    transition: background .15s ease;
}

.tweet-link {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.tweet-content {
    min-width: 0;
}

.tweet header {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: center;
    font-size: 16px;
}

.tweet header strong {
    color: var(--text);
}

.tweet-menu {
    margin-left: auto;
}

.tweet-menu .icon {
    width: 22px;
    height: 22px;
}

.tweet h2 {
    margin: 2px 0 4px;
    font-size: 18px;
    line-height: 1.35;
}

.tweet p {
    margin: 0;
    line-height: 1.45;
}

.tweet-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px !important;
    color: var(--accent);
}

.tweet-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: 540px;
    margin-top: 14px;
    font-size: 15px;
}

.tweet-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    color: var(--muted);
}

.tweet-action .icon {
    width: 20px;
    height: 20px;
    stroke-width: 1.8;
}

.tweet:hover .reply {
    color: var(--accent);
}

.tweet:hover .repost {
    color: var(--green);
}

.tweet:hover .like {
    color: var(--pink);
}

.tweet-detail {
    border-bottom: 1px solid var(--line);
}

.tweet-detail > :not(.detail-topbar) {
    margin-left: 20px;
    margin-right: 20px;
}

.tweet-author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
}

.tweet-author strong,
.tweet-author span {
    display: block;
}

.tweet-author span {
    color: var(--muted);
}

.tweet-detail h1 {
    margin-top: 24px;
    margin-bottom: 10px;
    font-size: 31px;
    line-height: 1.2;
}

.tweet-lede {
    color: var(--muted);
    font-size: 19px;
    line-height: 1.45;
}

.tweet-body {
    margin-top: 24px;
    font-size: 17px;
    line-height: 1.7;
}

.tweet-body img {
    max-width: 100%;
    border-radius: 8px;
}

.tweet-body pre {
    overflow-x: auto;
    padding: 16px;
    border-radius: 8px;
    background: var(--text);
    color: #fff;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.search-panel {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 400px;
    height: 50px;
    padding: 0 18px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    color: var(--muted);
}

.search-panel .icon {
    width: 20px;
    height: 20px;
}

.side-panel {
    max-width: 400px;
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
}

.side-panel h2 {
    margin: 0 0 14px;
    font-size: 24px;
    line-height: 1.2;
}

.suggestion {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
}

.suggestion-avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2f3336, #8ecdf8);
}

.suggestion strong,
.suggestion span,
.suggestion small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.suggestion span,
.suggestion small,
.trend span,
.trend small,
.site-links {
    color: var(--muted);
}

.x-profile-stats {
    display: flex !important;
    flex-wrap: wrap;
    gap: 6px;
}

.suggestion-follow {
    display: grid;
    place-items: center;
    min-width: 88px;
    height: 36px;
    border-radius: 999px;
    background: var(--button);
    color: #fff;
    font-weight: 800;
}

.suggestion-follow-widget {
    min-width: 88px;
    min-height: 28px;
}

.trend {
    display: block;
    padding: 12px 0;
}

.trend strong,
.trend span,
.trend small {
    display: block;
}

.show-more {
    display: block;
    padding-top: 10px;
    color: var(--accent);
    font-size: 18px;
}

.site-links {
    max-width: 400px;
    margin: 24px 0 0;
    font-size: 13px;
    line-height: 1.8;
}

@media (max-width: 1280px) {
    .site-shell {
        grid-template-columns: 88px minmax(0, 600px) minmax(280px, 340px);
    }

    .rail-left {
        width: 88px;
        padding: 8px;
        align-items: center;
    }

    .nav-item {
        width: 54px;
        justify-content: center;
        padding: 0;
    }

    .nav-item span:last-child,
    .post-button,
    .account-chip div,
    .account-chip > .icon {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
    }

    .account-chip {
        display: block;
        padding: 6px;
    }

    .rail-right {
        width: 340px;
        padding-left: 16px;
        padding-right: 8px;
    }

    .search-panel,
    .side-panel,
    .site-links {
        max-width: 316px;
    }

    .suggestion {
        grid-template-columns: 42px minmax(0, 1fr) auto;
        gap: 10px;
    }

    .suggestion-avatar {
        width: 42px;
        height: 42px;
    }

    .suggestion-follow {
        min-width: 74px;
        padding: 0 12px;
    }
}

@media (max-width: 1040px) {
    .site-shell {
        grid-template-columns: 88px minmax(0, 680px);
    }

    .rail-right {
        display: none;
    }
}

@media (max-width: 680px) {
    .site-shell {
        display: block;
    }

    .rail-left {
        position: fixed;
        inset: auto 0 0;
        z-index: 10;
        display: block;
        width: auto;
        height: 58px;
        padding: 0;
        border-top: 1px solid var(--line);
        background: rgba(255, 255, 255, .92);
        backdrop-filter: blur(12px);
    }

    .brand,
    .post-button,
    .account-chip,
    .nav-item:nth-child(n+5) {
        display: none;
    }

    .primary-nav {
        display: flex;
        justify-content: space-around;
        height: 100%;
    }

    .nav-item {
        width: 56px;
        height: 56px;
        min-height: 0;
    }

    .timeline {
        border: 0;
        padding-bottom: 58px;
    }

    .timeline-topbar {
        min-height: 54px;
    }

    .timeline-topbar h1 {
        font-size: 20px;
    }

    .profile-banner {
        height: 34vw;
        min-height: 120px;
        max-height: 210px;
    }

    .profile-avatar-row .avatar {
        width: 96px;
        height: 96px;
        margin-top: -48px;
    }

    .profile-avatar-row .avatar-fallback {
        font-size: 40px;
    }

    .tabs {
        overflow-x: auto;
        grid-template-columns: repeat(6, minmax(96px, 1fr));
    }

    .tweet-detail h1 {
        font-size: 27px;
    }
}