/* Persistent reader workspace */

.ink-nav-tools {
    display: inline-flex;
    gap: 7px;
    align-items: center;
    min-height: 36px;
    padding: 0 11px;
    color: var(--ink-navy-900);
    cursor: pointer;
    background: transparent;
    border: 1px solid var(--ink-line-strong);
    border-radius: 3px;
    font-size: 1.05rem;
    font-weight: 700;
}

.ink-nav-tools:hover { color: var(--ink-white); background: var(--ink-navy-900); }

.ink-nav-tools b,
.ink-tools-fab b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    color: var(--ink-white);
    background: var(--ink-teal-500);
    border-radius: 9px;
    font-size: .75rem;
}

.ink-tools-fab {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 210;
    display: none;
    gap: 8px;
    align-items: center;
    min-height: 42px;
    padding: 0 13px;
    color: var(--ink-white);
    cursor: pointer;
    background: var(--ink-navy-900);
    border: 1px solid rgb(255 255 255 / .15);
    border-radius: 22px;
    box-shadow: 0 12px 32px rgb(11 31 51 / .25);
    font-size: 1rem;
    font-weight: 750;
}

.ink-tools-overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: rgb(4 16 28 / .55);
    backdrop-filter: blur(3px);
}

.ink-tools-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 510;
    width: min(470px, 100vw);
    overflow-y: auto;
    color: var(--ink-ink);
    background: #f4f5f3;
    border-left: 1px solid var(--ink-line);
    box-shadow: -24px 0 70px rgb(11 31 51 / .22);
    transform: translateX(102%);
    transition: transform 240ms cubic-bezier(.2, .7, .2, 1);
}

.ink-tools-drawer.is-open { transform: translateX(0); }
.ink-tools-open { overflow: hidden; }

.ink-tools-header {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 104px;
    padding: 23px 26px;
    color: var(--ink-white);
    background:
        radial-gradient(circle at 100% 0, rgb(15 139 141 / .35), transparent 45%),
        var(--ink-navy-950);
    border-bottom: 3px solid var(--ink-teal-500);
}

.ink-tools-header span {
    color: #7ce0d3;
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .13em;
}

.ink-tools-header h2 {
    margin-top: 3px;
    font-family: var(--ink-serif);
    font-size: 2.7rem;
    font-weight: 500;
    letter-spacing: -.035em;
}

.ink-tools-header > button {
    width: 36px;
    height: 36px;
    color: #cbd7de;
    cursor: pointer;
    background: rgb(255 255 255 / .08);
    border: 1px solid rgb(255 255 255 / .17);
    border-radius: 50%;
    font-size: 2rem;
    line-height: 1;
}

.ink-tools-body { padding: 20px; }

.ink-tools-status {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: var(--ink-white);
    border: 1px solid var(--ink-line);
}

.ink-tools-status div {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 13px;
}

.ink-tools-status div + div { border-left: 1px solid var(--ink-line); }
.ink-tools-status strong { color: var(--ink-navy-950); font-family: var(--ink-serif); font-size: 2.1rem; }
.ink-tools-status span { color: #7b8790; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.ink-ai-lab {
    margin-top: 16px;
    overflow: hidden;
    color: var(--ink-white);
    background:
        radial-gradient(circle at 100% 0, rgb(124 224 211 / .2), transparent 35%),
        var(--ink-navy-900);
    border: 1px solid #23465f;
}

.ink-ai-lab > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid rgb(255 255 255 / .12);
}

.ink-ai-lab > header div { display: flex; gap: 9px; align-items: baseline; }
.ink-ai-lab > header span { color: #7ce0d3; font-size: .72rem; font-weight: 850; letter-spacing: .12em; }
.ink-ai-lab > header h3 { font-family: var(--ink-serif); font-size: 1.7rem; font-weight: 500; }
.ink-ai-lab > header small { color: #88a0af; font-size: .68rem; text-transform: uppercase; }

.ink-ai-actions { display: grid; grid-template-columns: repeat(3, 1fr); }
.ink-ai-actions button {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-height: 112px;
    padding: 13px;
    color: var(--ink-white);
    cursor: pointer;
    background: transparent;
    border: 0;
    border-right: 1px solid rgb(255 255 255 / .11);
    text-align: left;
}
.ink-ai-actions button:last-child { border-right: 0; }
.ink-ai-actions button:hover { background: rgb(255 255 255 / .07); }
.ink-ai-actions button.is-disabled { opacity: .45; }
.ink-ai-actions i { display: flex; align-items: center; justify-content: center; width: 25px; height: 25px; color: var(--ink-navy-950); background: #7ce0d3; border-radius: 50%; font-family: var(--ink-serif); font-style: normal; font-weight: 800; }
.ink-ai-actions strong { margin-top: 10px; font-size: .82rem; line-height: 1.2; }
.ink-ai-actions small { margin-top: 4px; color: #91a5b2; font-size: .67rem; line-height: 1.3; }

.ink-ai-result { padding: 14px 16px 16px; color: var(--ink-ink); background: #f7fbfa; border-top: 3px solid #7ce0d3; }
.ink-ai-result > header { display: flex; align-items: center; justify-content: space-between; }
.ink-ai-result > header span { color: var(--ink-teal-500); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.ink-ai-result > header button { color: #67747d; cursor: pointer; background: transparent; border: 0; font-size: 1.4rem; }
.ink-ai-result form { display: grid; grid-template-columns: 1fr auto; gap: 6px; margin-top: 11px; }
.ink-ai-result form input { min-width: 0; padding: 9px 10px; color: var(--ink-navy-950); background: var(--ink-white); border: 1px solid var(--ink-line-strong); outline: none; font-size: .8rem; }
.ink-ai-result form button { padding: 0 12px; color: var(--ink-white); cursor: pointer; background: var(--ink-teal-500); border: 0; font-size: .75rem; font-weight: 750; }
.ink-ai-result [data-ai-output] { margin-top: 12px; color: #43515b; font-family: var(--ink-serif); font-size: .95rem; line-height: 1.5; }
.ink-ai-result [data-ai-output] p + :is(p, ul, ol) { margin-top: 9px; }
.ink-ai-result [data-ai-output] :is(ul, ol) { padding-left: 18px; }
.ink-ai-result [data-ai-output] li + li { margin-top: 6px; }
.ink-ai-result [data-ai-output] p:last-child:not(:first-child) { color: #7b8790; font-family: var(--ink-sans); font-size: .7rem; }
.ink-ai-result > footer { display: flex; align-items: center; justify-content: space-between; margin-top: 13px; padding-top: 10px; border-top: 1px solid var(--ink-line); }
.ink-ai-result > footer span { color: #8a969d; font-size: .65rem; }
.ink-ai-result > footer button { color: var(--ink-teal-500); cursor: pointer; background: transparent; border: 0; font-size: .7rem; font-weight: 750; }

.ink-article-ai {
    width: 100%;
    margin-top: 0;
}

.ink-article-ai > header {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
    padding: 12px;
}

.ink-article-ai > header div {
    flex-direction: column;
    gap: 2px;
}

.ink-article-ai > header h3 { font-size: 1.4rem; }
.ink-article-ai .ink-ai-actions { grid-template-columns: 1fr; }
.ink-article-ai .ink-ai-actions button {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    column-gap: 8px;
    min-height: 60px;
    padding: 10px 11px;
    border-right: 0;
    border-bottom: 1px solid rgb(255 255 255 / .1);
}
.ink-article-ai .ink-ai-actions button:last-child { border-bottom: 0; }
.ink-article-ai .ink-ai-actions i { grid-row: 1 / span 2; width: 24px; height: 24px; }
.ink-article-ai .ink-ai-actions strong { margin-top: 1px; }
.ink-article-ai .ink-ai-actions small { margin-top: 0; }

.ink-article-ai .ink-ai-result {
    position: fixed;
    right: 220px;
    bottom: 24px;
    z-index: 460;
    width: min(430px, calc(100vw - 260px));
    max-height: min(620px, calc(100vh - 48px));
    overflow-y: auto;
    box-shadow: 0 20px 60px rgb(4 16 28 / .3);
}

.ink-tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
    margin-top: 16px;
}

.ink-tools-grid > :is(button, .ink-tools-font) {
    display: grid;
    grid-template-columns: 29px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    min-height: 77px;
    padding: 13px;
    color: var(--ink-navy-950);
    cursor: pointer;
    background: var(--ink-white);
    border: 1px solid var(--ink-line);
    border-radius: 3px;
    text-align: left;
}

.ink-tools-grid > button:hover {
    border-color: #aab8bd;
    box-shadow: 0 7px 19px rgb(11 31 51 / .07);
    transform: translateY(-1px);
}

.ink-tools-grid > :is(button, .ink-tools-font) > i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 29px;
    height: 29px;
    color: var(--ink-teal-500);
    background: var(--ink-teal-100);
    border-radius: 50%;
    font-family: var(--ink-serif);
    font-size: 1.2rem;
    font-style: normal;
    font-weight: 700;
}

.ink-tools-grid > :is(button, .ink-tools-font) > span { display: flex; flex-direction: column; min-width: 0; }
.ink-tools-grid strong { font-size: .92rem; font-weight: 750; line-height: 1.25; }
.ink-tools-grid small { margin-top: 4px; color: #78848d; font-size: .72rem; line-height: 1.3; }

.ink-tools-grid > .is-active {
    color: var(--ink-white);
    background: var(--ink-navy-900);
    border-color: var(--ink-navy-900);
}

.ink-tools-grid > .is-active small { color: #aebfca; }
.ink-tools-grid > .is-disabled { opacity: .55; }
.ink-tools-font { position: relative; cursor: default !important; }
.ink-tools-font > div { display: flex; grid-column: 2; gap: 5px; margin-top: 7px; }
.ink-tools-font > div button { flex: 1; min-height: 25px; color: var(--ink-navy-900); cursor: pointer; background: #f2f5f5; border: 1px solid var(--ink-line); font-size: .72rem; font-weight: 750; }

.ink-tools-note {
    margin-top: 16px;
    padding: 16px;
    background: #fffbed;
    border: 1px solid #ded5b5;
    border-top: 4px solid #d5a629;
}

.ink-tools-note header { display: flex; align-items: center; justify-content: space-between; }
.ink-tools-note header span { color: #715d25; font-size: .82rem; font-weight: 750; text-transform: uppercase; }
.ink-tools-note header button { color: #715d25; cursor: pointer; background: transparent; border: 0; font-size: 1.4rem; }
.ink-tools-note textarea { width: 100%; margin-top: 12px; padding: 11px; resize: vertical; color: #3d3521; background: rgb(255 255 255 / .6); border: 1px solid #d9cfad; border-radius: 2px; font-family: var(--ink-serif); font-size: 1.1rem; line-height: 1.5; outline: none; }
.ink-tools-note > small { display: block; margin-top: 7px; color: #8a7a4c; font-size: .7rem; }

.ink-tools-collection {
    margin-top: 16px;
    background: var(--ink-white);
    border: 1px solid var(--ink-line);
}

.ink-tools-collection > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 16px;
    border-bottom: 1px solid var(--ink-line);
}

.ink-tools-collection h3 { color: var(--ink-navy-950); font-family: var(--ink-serif); font-size: 1.7rem; font-weight: 600; }
.ink-tools-collection header div { display: flex; gap: 2px; }
.ink-tools-collection header button { padding: 5px 7px; color: #7b8790; cursor: pointer; background: transparent; border: 0; border-radius: 2px; font-size: .7rem; font-weight: 700; }
.ink-tools-collection header button.is-active { color: var(--ink-white); background: var(--ink-teal-500); }

.ink-library-list { max-height: 280px; overflow-y: auto; }
.ink-library-list > a { display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; gap: 9px; align-items: center; padding: 12px 15px; }
.ink-library-list > a + a { border-top: 1px solid #edf0f1; }
.ink-library-list > a:hover { background: #f7f9f9; }
.ink-library-list > a > span { display: flex; align-items: center; justify-content: center; width: 26px; height: 26px; color: var(--ink-teal-500); background: var(--ink-teal-100); border-radius: 50%; font-family: var(--ink-serif); font-size: .9rem; font-weight: 700; text-transform: uppercase; }
.ink-library-list > a strong { overflow: hidden; color: var(--ink-navy-950); font-family: var(--ink-serif); font-size: 1rem; font-weight: 600; line-height: 1.2; text-overflow: ellipsis; white-space: nowrap; }
.ink-library-list > a small { color: #82909a; font-size: .67rem; text-transform: uppercase; }
.ink-library-empty { padding: 24px 20px; color: var(--ink-muted); font-size: .85rem; line-height: 1.5; text-align: center; }

.ink-tools-shortcuts {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 14px;
    padding: 12px 3px;
    color: #7a868e;
    font-size: .72rem;
}

.ink-tools-shortcuts > span { font-weight: 750; letter-spacing: .07em; text-transform: uppercase; }
.ink-tools-shortcuts kbd { padding: 2px 5px; color: #52616b; background: var(--ink-white); border: 1px solid var(--ink-line-strong); border-radius: 2px; font-family: var(--ink-sans); font-size: .65rem; }

/* Calm paper tone */
.ink-paper-tone .ink-reading-stage,
.ink-paper-tone .ink-article-brief,
.ink-paper-tone .ink-article-end { background-color: #eee9dd; }
.ink-paper-tone .ink-article-content { color: #302d28; }

/* Distraction-free article mode */
.ink-focus-mode :is(.ink-utility-bar, .gh-navigation, .ink-topic-nav, .ink-article-profile, .ink-article-brief, .ink-reading-tools, .ink-reading-companion, .ink-article-end, .ink-related-reading, .gh-footer) {
    display: none !important;
}
.ink-focus-mode .ink-article-hero-inner { display: block; min-height: 0; max-width: 820px; padding-block: 42px; }
.ink-focus-mode .ink-article-hero .gh-article-title { font-size: clamp(4.2rem, 5vw, 6.2rem); }
.ink-focus-mode .ink-reading-stage { padding-top: 50px; }
.ink-focus-mode .ink-reading-stage-inner { display: block; max-width: 800px; }
.ink-focus-mode .ink-tools-fab { display: flex; }

@media (max-width: 900px) {
    .ink-nav-tools { display: none; }
    .ink-tools-fab { display: flex; }
    .ink-article-ai { max-width: 760px; margin: 0 auto; }
    .ink-article-ai > header { align-items: center; flex-direction: row; padding: 14px 16px; }
    .ink-article-ai > header div { flex-direction: row; gap: 8px; }
    .ink-article-ai .ink-ai-actions { grid-template-columns: repeat(3, 1fr); }
    .ink-article-ai .ink-ai-actions button { display: flex; min-height: 100px; border-right: 1px solid rgb(255 255 255 / .1); border-bottom: 0; }
    .ink-article-ai .ink-ai-result { position: static; width: 100%; max-height: none; box-shadow: none; }
}

@media (max-width: 520px) {
    .ink-tools-header { min-height: 90px; padding: 18px 20px; }
    .ink-tools-header h2 { font-size: 2.35rem; }
    .ink-tools-body { padding: 14px; }
    .ink-tools-grid { gap: 7px; }
    .ink-tools-grid > :is(button, .ink-tools-font) { min-height: 72px; padding: 10px; }
    .ink-tools-fab { right: 12px; bottom: 12px; }
}

@media print {
    .ink-tools-fab,
    .ink-tools-overlay,
    .ink-tools-drawer,
    .ink-nav-tools { display: none !important; }
}