* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/*dark mode*/
:root {
    --bg: #000000;
    --text: #e7e9ea;
    --secondary-text: #71767b;
    --border: #2f3336;
    --card: #16181c;
    --hover: rgba(231, 233, 234, 0.1);
    --blue: #1d9bf0;
}
/*light mode*/
body.light {
    --bg: #ffffff;
    --text: #0f1419;
    --secondary-text: #536471;
    --border: #eff3f4;
    --card: #f7f9f9;
    --hover: rgba(15, 20, 25, 0.1);
}

body {
    background-color: var(--bg);
    font-family: 'Inter', system-ui, -apple-system, 'Noto Sans', sans-serif;
    color: var(--text);
}


#body-div {
    display: flex;
    flex-direction: row;
    justify-content: center;
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    gap: 24px;
    padding: 0 16px;
}


#left {
    flex: 0 0 260px;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

#button-bar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    padding: 12px 0 20px 0;
}


#x {
    background: transparent;
    border: none;
    width: 52px;
    height: 52px;
    border-radius: 9999px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    transition: background-color 0.2s;
}
#x:hover {
    background-color: var(--hover);
}
#x img {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
}


#buttons {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
}


.side-butt {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-radius: 9999px;
    font-size: 20px;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    transition: background-color 0.2s ease;
    width: fit-content;
    min-width: 200px;
    text-align: left;
}
.side-butt:hover {
    background-color: var(--hover);
}

.side-butt-icon {
    font-size: 26px;
    width: 28px;
    text-align: center;
}
.side-butt-text {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.2;
}

.side-butt:last-of-type {
    background-color: var(--blue);
    margin-top: 12px;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 9999px;
    color: var(--text);
    font-weight: 700;
}
.side-butt:last-of-type:hover {
    background-color: var(--blue);
}
.side-butt:last-of-type .side-butt-text {
    font-size: 18px;
    font-weight: 700;
}
.side-butt:last-of-type .side-butt-icon {
    display: none;
}


#profile-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 9999px;
    background: transparent;
    margin-top: auto;
    transition: background 0.2s;
    cursor: pointer;
    width: fit-content;
}
#profile-pill:hover {
    background-color: var(--hover);
}
.account-icon {
    font-size: 40px;
    color: var(--secondary-text)
}
#profile-pill #user-info {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}
#username {
    font-weight: 600;
    font-size: 15px;
}
#userid {
    font-size: 13px;
    color: var(--secondary-text);
}
#profile-pill .fa-ellipsis {
    font-size: 18px;
    margin-left: 12px;
    color: var(--secondary-text);
}


#center {
    flex: 1;
    max-width: 600px;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    min-height: 100vh;
}


#feed-options {
    display: flex;
    position: sticky;
    top: 0;
    background-color: var(--bg);
    backdrop-filter: blur(12px);
    z-index: 10;
    border-bottom: 1px solid var(--border);
}
.feed-butt {
    flex: 1;
    background: transparent;
    border: none;
    padding: 16px 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary-text);
    cursor: pointer;
    transition: background 0.2s;
}
.feed-butt:hover {
    background-color: var(--bg);
}
.feed-butt:first-child {
    color: var(--text);
    border-bottom: 2px solid var(--blue);
}


#create-post {
    border-bottom: 8px solid var(--card);
    padding: 12px 16px;
}
#post-content {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
#post-content .account-icon {
    font-size: 40px;
}
#text {
    background: transparent;
    border: none;
    font-size: 20px;
    padding: 12px 0;
    width: 100%;
    color: var(--text);
    outline: none;
    resize: none;
    font-family: inherit;
}
#text::placeholder {
    color: var(--secondary-text);
    font-size: 20px;
}
#post-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    margin-left: 52px;
}
#post-ops {
    display: flex;
    gap: 18px;
}
.post-option {
    font-size: 20px;
    color: var(--blue);
    cursor: pointer;
    transition: color 0.2s;
}
.post-option:hover {
    color: var(--blue);
}
#image-input {
    display: none;
}
#post {
    background-color: var(--blue);
    border: none;
    padding: 8px 20px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    transition: background 0.2s;
}
#post:hover {
    background-color: var(--blue);
}

/* feed posts */
#feed {
    display: flex;
    flex-direction: column;
}
.tweet {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 12px;
    transition: background 0.2s;
}
.tweet:hover {
    background-color: var(--bg);
}
.tweet-avatar {
    font-size: 40px;
    color: var(--secondary-text);
}
.tweet-content {
    flex: 1;
}
.tweet-header {
    display: flex;
    gap: 8px;
    align-items: baseline;
    flex-wrap: wrap;
}
.tweet-name {
    font-weight: 700;
    font-size: 15px;
}
.tweet-username {
    font-size: 14px;
    color: var(--secondary-text);
}
.tweet-time {
    font-size: 13px;
    color: var(--secondary-text);
}
.tweet-text {
    margin: 8px 0 12px;
    font-size: 15px;
    line-height: 1.4;
}
.tweet-image {
    width: 100%;
    border-radius: 16px;
    margin: 8px 0 12px;
    object-fit: cover;
    max-height: 500px;
}
.tweet-actions {
    display: flex;
    justify-content: space-between;
    max-width: 400px;
    margin-top: 8px;
    color: var(--secondary-text);
}
.tweet-actions i {
    font-size: 16px;
    cursor: pointer;
}
.tweet-actions i:hover {
    color: var(--blue);
}
.tweet-like {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}
.tweet-like .like-count {
    font-size: 14px;
}
.tweet-like.liked,
.tweet-like.liked i,
.tweet-like.liked .like-count {
    color: #f91880;
}


#right {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-top: 8px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    scrollbar-width: thin;
}
/* Hide scrollbar for Chrome, Safari and Opera */
#right::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
#right {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

#search {
    background-color: var(--bg);
    border-radius: 9999px;
    display: flex;
    align-items: center;
    padding: 8px 16px;
    gap: 12px;
    margin-top: 8px;
}
#search-icon {
    color: var(--secondary-text);
    font-size: 18px;
}
#search-bar {
    background: transparent;
    border: none;
    width: 100%;
    font-size: 15px;
    color: var(--text);
    outline: none;
}
#search-bar::placeholder {
    color: var(--secondary-text)
}


#premium, #news, #happening, #follow {
    background-color: var(--card);
    border-radius: 24px;
    padding: 16px 20px;
}
.right-heading {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}
#premium p {
    font-size: 13px;
    color: #b0b3b8;
    margin: 8px 0 16px;
    line-height: 1.3;
}
#subscribe {
    background-color: var(--blue);
    border: none;
    padding: 8px 20px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
}
#subscribe:hover {
    background-color: var(--hover);
}

/* news block */
.news-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}
.news-item:last-child {
    border-bottom: none;
}
.title {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 6px;
    line-height: 1.3;
}
.info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--secondary-text);
}
.icons {
    font-size: 14px;
}

/* topics */
.topic {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}
.topic:last-child {
    border-bottom: none;
}
.details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.trend-info {
    font-size: 12px;
    color: var(--secondary-text);
}
.trend-name {
    font-size: 15px;
    font-weight: 700;
}
.more-icon {
    color: var(--secondary-text);
    font-size: 16px;
}

/* follow*/
.follow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.follow:last-child {
    border-bottom: none;
}
.follow .account-icon {
    font-size: 40px;
}
.account-info {
    flex: 1;
}
.account-info h6 {
    font-weight: 700;
    font-size: 14px;
}
.follow button {
    background-color: var(--text);
    border: none;
    padding: 6px 16px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 13px;
    color: var(--bg);
    cursor: pointer;
}
.follow button:hover {
    background-color: var(--text);
}

#footer {
    font-size: 12px;
    color: var(--secondary-text);
    padding: 16px 0;
    text-align: center;
}

/* responsive stuff */
@media (max-width: 1100px) {
    #body-div {
        gap: 12px;
    }
    #right {
        flex: 0 0 300px;
    }
    .side-butt-text {
        font-size: 16px;
    }
    .side-butt {
        min-width: 180px;
    }
}
@media (max-width: 980px) {
    #right {
        display: none;
    }
    #left {
        flex: 0 0 80px;
    }
    .side-butt-text {
        display: none;
    }
    .side-butt {
        min-width: auto;
        padding: 12px;
        justify-content: center;
    }
    .side-butt-icon {
        margin: 0;
        font-size: 28px;
    }
    .side-butt:last-of-type .side-butt-text {
        display: inline-block;
    }
    .side-butt:last-of-type {
        padding: 12px 16px;
    }
    #profile-pill #user-info {
        display: none;
    }
    #profile-pill {
        justify-content: center;
    }
}