/* ASCENTIUM Library - "The Reading Room"
   Bootstrap 5.3 is only the foundation. Everything below re-skins it and adds our own components.
   Brand colours per theme (--lib-primary*) are written by the server from the library's chosen colour. */

:root {
  --lib-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --lib-serif: "Newsreader", "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --lib-radius-sm: 10px;
  --lib-radius: 16px;
  --lib-radius-lg: 24px;
  --lib-ease: cubic-bezier(.2, .7, .2, 1);
  --lib-rail-w: 92px;
  --z-rail: 30; --z-topbar: 40; --z-palette: 1080; --z-toast: 1090;
  /* twelve muted "spine colours": categories, avatars, generated covers */
  --sp-1: #8c2f39; --sp-2: #c26b2e; --sp-3: #b8891f; --sp-4: #6f9132; --sp-5: #2e7d5b; --sp-6: #1f6f78;
  --sp-7: #2a5d9f; --sp-8: #4b4c9e; --sp-9: #7b4a8c; --sp-10: #a3466e; --sp-11: #6b5b4b; --sp-12: #3b4a54;
}
/* safe brand fallback (zero specificity): the server overrides it with the library's own colour */
:where(html) { --lib-primary: #0e5a4a; --lib-primary-rgb: 14, 90, 74; --lib-primary-hover: #0a4337; --lib-on-primary: #ffffff; --lib-primary-soft: #e4f0ec; --lib-primary-ink: #0e5a4a; --lib-primary-line: #c3dcd3; }
.spine-1 { --sp: var(--sp-1) } .spine-2 { --sp: var(--sp-2) } .spine-3 { --sp: var(--sp-3) } .spine-4 { --sp: var(--sp-4) }
.spine-5 { --sp: var(--sp-5) } .spine-6 { --sp: var(--sp-6) } .spine-7 { --sp: var(--sp-7) } .spine-8 { --sp: var(--sp-8) }
.spine-9 { --sp: var(--sp-9) } .spine-10 { --sp: var(--sp-10) } .spine-11 { --sp: var(--sp-11) } .spine-12 { --sp: var(--sp-12) }

html[data-theme=paper] {
  --lib-bg: #f4eee2; --lib-surface: #fffcf5; --lib-surface-2: #f9f3e6; --lib-ink: #1c2130; --lib-ink-2: #444a5c; --lib-muted: #5f6372;
  --lib-line: #e3d8c1; --lib-line-2: #eee5d2; --lib-shadow: rgba(76, 52, 16, .16);
  --lib-ok: #1f6f45; --lib-ok-soft: #e3f2e8; --lib-warn: #8f5500; --lib-warn-soft: #fbefd5; --lib-danger: #a8321f; --lib-on-danger: #ffffff; --lib-danger-soft: #fbe6e1; --lib-info: #1f5f8f; --lib-info-soft: #e1eef8;
  --lib-grain: radial-gradient(circle at 20% 10%, rgba(255,255,255,.7), transparent 40%), radial-gradient(circle at 90% 90%, rgba(190,150,80,.10), transparent 45%);
}
html[data-theme=lamp] {
  --lib-bg: #15120d; --lib-surface: #1f1a13; --lib-surface-2: #28221a; --lib-ink: #f2eada; --lib-ink-2: #cfc3aa; --lib-muted: #a0947d;
  --lib-line: #3a3225; --lib-line-2: #2f291e; --lib-shadow: rgba(0, 0, 0, .5);
  --lib-ok: #6fcf97; --lib-ok-soft: #1b2e22; --lib-warn: #f0b95a; --lib-warn-soft: #34290f; --lib-danger: #ff8d78; --lib-on-danger: #1f0a06; --lib-danger-soft: #3a1c16; --lib-info: #7fbfee; --lib-info-soft: #162b3a;
  --lib-grain: radial-gradient(circle at 15% 0%, rgba(255,200,120,.07), transparent 45%);
}
html[data-theme=chalk] {
  --lib-bg: #1d3730; --lib-surface: #24453c; --lib-surface-2: #2b5247; --lib-ink: #f6f3e9; --lib-ink-2: #d9dfd2; --lib-muted: #b9cbc1;
  --lib-line: #3d6458; --lib-line-2: #335a4e; --lib-shadow: rgba(0, 0, 0, .35);
  --lib-ok: #8fe3b0; --lib-ok-soft: #1f4d3a; --lib-warn: #ffd37a; --lib-warn-soft: #4a4020; --lib-danger: #ffa391; --lib-on-danger: #1f0a06; --lib-danger-soft: #4d2a25; --lib-info: #9bd2f5; --lib-info-soft: #204656;
  --lib-grain: radial-gradient(circle at 80% 0%, rgba(255,255,255,.06), transparent 50%);
}
html[data-theme=contrast] {
  --lib-bg: #ffffff; --lib-surface: #ffffff; --lib-surface-2: #f2f2f2; --lib-ink: #000000; --lib-ink-2: #111111; --lib-muted: #333333;
  --lib-line: #000000; --lib-line-2: #555555; --lib-shadow: rgba(0, 0, 0, .0);
  --lib-ok: #00602b; --lib-ok-soft: #e4ffee; --lib-warn: #6b3d00; --lib-warn-soft: #fff0cf; --lib-danger: #a50000; --lib-on-danger: #ffffff; --lib-danger-soft: #ffe6e6; --lib-info: #003c8f; --lib-info-soft: #e5efff;
  --lib-grain: none;
}

/* ---- Bootstrap bridge: every Bootstrap component inherits the look ---- */
html[data-theme] {
  --bs-body-font-family: var(--lib-font);
  --bs-body-font-size: 1rem;
  --bs-body-line-height: 1.55;
  --bs-body-bg: var(--lib-bg);
  --bs-body-color: var(--lib-ink);
  --bs-body-color-rgb: 28, 33, 48;
  --bs-secondary-color: var(--lib-muted);
  --bs-tertiary-bg: var(--lib-surface-2);
  --bs-border-color: var(--lib-line);
  --bs-border-color-translucent: var(--lib-line);
  --bs-emphasis-color: var(--lib-ink);
  --bs-link-color: var(--lib-primary-ink);
  --bs-link-color-rgb: var(--lib-link-rgb, var(--lib-primary-rgb));   /* --lib-link-rgb: the text-safe shade of the brand colour (view.php brand_css) */
  --bs-link-hover-color-rgb: var(--lib-link-rgb, var(--lib-primary-rgb));
  --bs-link-hover-color: var(--lib-primary-hover);
  --bs-primary: var(--lib-primary);
  --bs-primary-rgb: var(--lib-primary-rgb);
  --bs-success: var(--lib-ok); --bs-warning: var(--lib-warn); --bs-danger: var(--lib-danger); --bs-info: var(--lib-info);
  --bs-border-radius: 12px; --bs-border-radius-lg: var(--lib-radius); --bs-border-radius-sm: 8px;
  --bs-focus-ring-color: rgba(var(--lib-primary-rgb), .25);
  --bs-dropdown-bg: var(--lib-surface); --bs-dropdown-border-color: var(--lib-line); --bs-dropdown-link-color: var(--lib-ink);
  --bs-dropdown-link-hover-bg: var(--lib-primary-soft); --bs-dropdown-link-hover-color: var(--lib-primary-ink); --bs-dropdown-link-active-bg: var(--lib-primary); --bs-dropdown-link-active-color: var(--lib-on-primary);
  --bs-modal-bg: var(--lib-surface); --bs-modal-border-color: var(--lib-line); --bs-modal-border-radius: var(--lib-radius-lg);
  --bs-offcanvas-bg: var(--lib-surface);
  --bs-tooltip-bg: var(--lib-ink); --bs-tooltip-color: var(--lib-bg);
}
html { color-scheme: light; }
html[data-bs-theme=dark] { color-scheme: dark; }
body { background: var(--lib-bg); background-image: var(--lib-grain); background-attachment: fixed; color: var(--lib-ink); -webkit-font-smoothing: antialiased; }
h1, h2, h3, .lib-serif { font-family: var(--lib-serif); font-weight: 600; letter-spacing: -.01em; color: var(--lib-ink); }
a { text-underline-offset: 3px; }
::selection { background: rgba(var(--lib-primary-rgb), .28); }
.ic { width: 1.25em; height: 1.25em; flex: none; vertical-align: -.25em; }
.ic-lg { width: 1.6em; height: 1.6em; }
.text-muted, .text-body-secondary { color: var(--lib-muted) !important; }
.text-danger { color: var(--lib-danger) !important; }
:focus-visible { outline: 3px solid rgba(var(--lib-primary-rgb), .55); outline-offset: 2px; border-radius: 6px; }

/* ---- buttons ---- */
.btn { --bs-btn-padding-x: 1.05rem; --bs-btn-padding-y: .58rem; --bs-btn-font-weight: 600; --bs-btn-border-radius: 12px; --bs-btn-font-size: .95rem; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; transition: transform .12s var(--lib-ease), box-shadow .2s, background-color .2s, border-color .2s; }
.btn:active { transform: translateY(1px); }
.btn-lg { --bs-btn-padding-y: .8rem; --bs-btn-padding-x: 1.4rem; --bs-btn-font-size: 1.05rem; }
.btn-sm { --bs-btn-padding-y: .32rem; --bs-btn-padding-x: .7rem; --bs-btn-font-size: .85rem; --bs-btn-border-radius: 10px; }
.btn-primary { --bs-btn-color: var(--lib-on-primary); --bs-btn-bg: var(--lib-primary); --bs-btn-border-color: var(--lib-primary); --bs-btn-hover-color: var(--lib-on-primary); --bs-btn-hover-bg: var(--lib-primary-hover); --bs-btn-hover-border-color: var(--lib-primary-hover); --bs-btn-active-color: var(--lib-on-primary); --bs-btn-active-bg: var(--lib-primary-hover); --bs-btn-active-border-color: var(--lib-primary-hover); --bs-btn-disabled-bg: var(--lib-primary); --bs-btn-disabled-border-color: var(--lib-primary); --bs-btn-disabled-color: var(--lib-on-primary); --bs-btn-focus-shadow-rgb: var(--lib-primary-rgb); box-shadow: 0 1px 0 rgba(255,255,255,.2) inset, 0 8px 16px -10px rgba(var(--lib-primary-rgb), .9); }
.btn-outline-primary { --bs-btn-color: var(--lib-primary-ink); --bs-btn-border-color: var(--lib-primary-line); --bs-btn-hover-color: var(--lib-primary-ink); --bs-btn-hover-bg: var(--lib-primary-soft); --bs-btn-hover-border-color: var(--lib-primary-line); --bs-btn-active-bg: var(--lib-primary-soft); --bs-btn-active-color: var(--lib-primary-ink); --bs-btn-active-border-color: var(--lib-primary-line); }
.btn-light, .btn-outline-secondary { --bs-btn-color: var(--lib-ink-2); --bs-btn-bg: var(--lib-surface); --bs-btn-border-color: var(--lib-line); --bs-btn-hover-color: var(--lib-ink); --bs-btn-hover-bg: var(--lib-surface-2); --bs-btn-hover-border-color: var(--lib-line); --bs-btn-active-bg: var(--lib-surface-2); --bs-btn-active-color: var(--lib-ink); --bs-btn-active-border-color: var(--lib-line); }
.btn-ghost { --bs-btn-color: var(--lib-ink-2); --bs-btn-bg: transparent; --bs-btn-border-color: transparent; --bs-btn-hover-bg: rgba(var(--lib-primary-rgb), .1); --bs-btn-hover-color: var(--lib-primary-ink); --bs-btn-hover-border-color: transparent; --bs-btn-active-bg: rgba(var(--lib-primary-rgb), .16); --bs-btn-active-color: var(--lib-primary-ink); --bs-btn-active-border-color: transparent; }
.btn-danger { --bs-btn-bg: var(--lib-danger); --bs-btn-border-color: var(--lib-danger); --bs-btn-color: var(--lib-on-danger); --bs-btn-hover-bg: var(--lib-danger); --bs-btn-hover-border-color: var(--lib-danger); --bs-btn-hover-color: var(--lib-on-danger); filter: none; }
.btn-danger:hover { filter: brightness(.92); }
.btn-outline-danger { --bs-btn-color: var(--lib-danger); --bs-btn-border-color: var(--lib-danger); --bs-btn-hover-bg: var(--lib-danger-soft); --bs-btn-hover-color: var(--lib-danger); --bs-btn-hover-border-color: var(--lib-danger); --bs-btn-active-bg: var(--lib-danger-soft); --bs-btn-active-color: var(--lib-danger); }
.btn-success { --bs-btn-bg: var(--lib-ok); --bs-btn-border-color: var(--lib-ok); --bs-btn-color: #fff; --bs-btn-hover-bg: var(--lib-ok); --bs-btn-hover-border-color: var(--lib-ok); --bs-btn-hover-color: #fff; }
.btn.is-busy { pointer-events: none; opacity: .75; }

/* ---- forms ---- */
.form-control, .form-select { background-color: var(--lib-surface); color: var(--lib-ink); border: 1.5px solid var(--lib-line); border-radius: 12px; padding: .66rem .9rem; min-height: 46px; transition: border-color .15s, box-shadow .15s; }
.form-control::placeholder { color: var(--lib-muted); opacity: .75; }
.form-control:focus, .form-select:focus { background-color: var(--lib-surface); color: var(--lib-ink); border-color: var(--lib-primary); box-shadow: 0 0 0 4px rgba(var(--lib-primary-rgb), .16); }
.form-control-sm, .form-select-sm { min-height: 36px; padding: .35rem .7rem; border-radius: 10px; font-size: .9rem; }
.form-control:disabled, .form-select:disabled { background: var(--lib-surface-2); opacity: .7; }
.form-label { font-weight: 600; font-size: .86rem; color: var(--lib-ink-2); margin-bottom: .35rem; }
.form-text, .lib-hint { color: var(--lib-muted); font-size: .84rem; }
.form-check-input { border-color: var(--lib-line); background-color: var(--lib-surface); width: 1.15em; height: 1.15em; }
.form-check-input:checked, .form-check-input:indeterminate { background-color: var(--lib-primary); border-color: var(--lib-primary); }
.form-switch .form-check-input { width: 2.4em; height: 1.3em; }
.form-check-input:focus { box-shadow: 0 0 0 4px rgba(var(--lib-primary-rgb), .18); border-color: var(--lib-primary); }
.is-invalid, .form-control.is-invalid { border-color: var(--lib-danger); }
input[type=color].form-control-color { width: 3.2rem; min-height: 46px; padding: .3rem; border-radius: 12px; }
.input-group > .btn { border-radius: 12px; }
.input-group > .form-control:not(:last-child) { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.input-group > .btn:not(:first-child) { border-top-left-radius: 0; border-bottom-left-radius: 0; }

/* ---- cards, chips, pills ---- */
.lib-card { background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); box-shadow: 0 1px 0 rgba(255,255,255,.5) inset, 0 14px 28px -20px var(--lib-shadow); padding: 1.35rem; position: relative; }
.lib-card--flat { box-shadow: none; }
.lib-card--soft { background: var(--lib-primary-soft); border-color: var(--lib-primary-line); box-shadow: none; }
.lib-card h2, .lib-card h3 { margin-top: 0; }
.lib-card-title { font-size: 1.15rem; margin: 0 0 .25rem; }
.lib-link-card { display: flex; gap: 1rem; align-items: flex-start; text-decoration: none; color: inherit; transition: transform .2s var(--lib-ease), box-shadow .2s, border-color .2s; height: 100%; }
.lib-link-card:hover { transform: translateY(-3px); border-color: var(--lib-primary-line); box-shadow: 0 22px 34px -22px var(--lib-shadow); color: inherit; }
.lib-link-card .lib-ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--lib-primary-soft); color: var(--lib-primary-ink); flex: none; }
.lib-link-card h3 { font-size: 1.05rem; margin: 0 0 .15rem; }
.lib-link-card p { margin: 0; color: var(--lib-muted); font-size: .9rem; }
.lib-chip { display: inline-flex; align-items: center; gap: .35rem; padding: .22rem .65rem; border-radius: 999px; background: var(--lib-surface-2); border: 1px solid var(--lib-line); font-size: .8rem; font-weight: 600; color: var(--lib-ink-2); white-space: nowrap; }
.lib-pill { display: inline-flex; align-items: center; gap: .3rem; padding: .18rem .6rem; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.lib-pill--ok { background: var(--lib-ok-soft); color: var(--lib-ok); }
.lib-pill--warn { background: var(--lib-warn-soft); color: var(--lib-warn); }
.lib-pill--danger { background: var(--lib-danger-soft); color: var(--lib-danger); }
.lib-pill--info { background: var(--lib-info-soft); color: var(--lib-info); }
.lib-pill--brand { background: var(--lib-primary-soft); color: var(--lib-primary-ink); }
.lib-pill--muted { background: var(--lib-surface-2); color: var(--lib-muted); border: 1px solid var(--lib-line); }
.lib-kbd { font: 600 .72rem/1 var(--lib-font); padding: .22rem .42rem; border: 1px solid var(--lib-line); border-bottom-width: 2px; border-radius: 6px; background: var(--lib-surface); color: var(--lib-ink-2); }
.lib-avatar { width: 38px; height: 38px; border-radius: 50%; background: color-mix(in srgb, var(--sp, var(--lib-primary)) 72%, #000); color: #fff; display: inline-grid; place-items: center; font-weight: 700; font-size: .85rem; flex: none; box-shadow: inset 0 -3px 0 rgba(0,0,0,.14); }
.lib-avatar--lg { width: 64px; height: 64px; font-size: 1.3rem; }
.lib-eyebrow { font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--lib-muted); }
.lib-divider { height: 1px; background: var(--lib-line); margin: 1.2rem 0; border: 0; }

/* ---- alerts and empty states ---- */
.lib-alert { display: flex; gap: .75rem; padding: .85rem 1rem; border-radius: 14px; border: 1px solid transparent; font-size: .94rem; align-items: flex-start; }
.lib-alert .ic { margin-top: .15rem; }
.lib-alert--ok { background: var(--lib-ok-soft); color: var(--lib-ok); border-color: color-mix(in srgb, var(--lib-ok) 25%, transparent); }
.lib-alert--warn { background: var(--lib-warn-soft); color: var(--lib-warn); border-color: color-mix(in srgb, var(--lib-warn) 25%, transparent); }
.lib-alert--danger { background: var(--lib-danger-soft); color: var(--lib-danger); border-color: color-mix(in srgb, var(--lib-danger) 25%, transparent); }
.lib-alert--info { background: var(--lib-info-soft); color: var(--lib-info); border-color: color-mix(in srgb, var(--lib-info) 25%, transparent); }
.lib-empty { text-align: center; padding: 2.5rem 1rem; color: var(--lib-muted); }
.lib-empty .lib-empty__art { display: inline-flex; gap: 5px; align-items: flex-end; height: 64px; margin-bottom: 1rem; }
.lib-empty .lib-empty__art i { width: 14px; border-radius: 3px 3px 1px 1px; background: var(--sp); opacity: .85; }
.lib-empty h3 { font-size: 1.2rem; margin-bottom: .3rem; }

/* ---- app shell ---- */
.lib-rail { position: fixed; inset: 0 auto 0 0; width: var(--lib-rail-w); background: var(--lib-surface); border-right: 1px solid var(--lib-line); display: flex; flex-direction: column; align-items: stretch; padding: 14px 10px; z-index: var(--z-rail); gap: 4px; }
.lib-rail__brand { display: grid; place-items: center; height: 56px; margin-bottom: 8px; color: var(--lib-on-primary); text-decoration: none; }
.lib-rail__brand span { width: 48px; height: 48px; border-radius: 16px; background: var(--lib-primary); display: grid; place-items: center; box-shadow: inset 0 -4px 0 rgba(0,0,0,.18), 0 10px 18px -10px rgba(var(--lib-primary-rgb), .9); transition: transform .25s var(--lib-ease); }
.lib-rail__brand:hover span { transform: rotate(-6deg) scale(1.04); }
.lib-rail__brand .ic { width: 26px; height: 26px; }
.lib-rail nav { display: flex; flex-direction: column; gap: 4px; flex: 1; overflow-y: auto; scrollbar-width: none; }
.lib-rail a.lib-nav { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 10px 4px 8px; border-radius: 14px; color: var(--lib-ink-2); text-decoration: none; font-size: .7rem; font-weight: 650; text-align: center; line-height: 1.15; position: relative; transition: background .15s, color .15s; }
.lib-rail a.lib-nav .ic { width: 24px; height: 24px; }
.lib-rail a.lib-nav:hover { background: rgba(var(--lib-primary-rgb), .09); color: var(--lib-primary-ink); }
.lib-rail a.lib-nav.is-active { background: var(--lib-primary-soft); color: var(--lib-primary-ink); }
.lib-rail a.lib-nav.is-active::before { content: ""; position: absolute; left: -10px; top: 14px; bottom: 14px; width: 5px; border-radius: 0 5px 5px 0; background: var(--lib-primary); }
.lib-rail__foot { display: grid; place-items: center; padding-top: 10px; border-top: 1px solid var(--lib-line-2); }
.lib-main { margin-left: var(--lib-rail-w); min-height: 100vh; display: flex; flex-direction: column; }
.lib-topbar { position: sticky; top: 0; z-index: var(--z-topbar); display: flex; align-items: center; gap: 1rem; padding: .8rem clamp(1rem, 3vw, 2.2rem); background: color-mix(in srgb, var(--lib-bg) 86%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--lib-line-2); }
.lib-topbar__lib { font-family: var(--lib-serif); font-weight: 600; font-size: 1.05rem; color: var(--lib-ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lib-topbar__spacer { flex: 1; }
.lib-search-btn { display: inline-flex; align-items: center; gap: .6rem; min-width: min(320px, 38vw); padding: .55rem .8rem; border: 1.5px solid var(--lib-line); border-radius: 14px; background: var(--lib-surface); color: var(--lib-muted); font-size: .92rem; cursor: text; transition: border-color .15s, box-shadow .15s; }
.lib-search-btn:hover { border-color: var(--lib-primary-line); box-shadow: 0 0 0 4px rgba(var(--lib-primary-rgb), .08); }
.lib-search-btn .lib-kbd { margin-left: auto; }
.lib-iconbtn { width: 42px; height: 42px; border-radius: 13px; border: 1.5px solid transparent; background: transparent; color: var(--lib-ink-2); display: inline-grid; place-items: center; transition: background .15s; }
.lib-iconbtn:hover { background: rgba(var(--lib-primary-rgb), .1); color: var(--lib-primary-ink); }
.lib-content { width: 100%; max-width: 1240px; margin: 0 auto; padding: clamp(1rem, 3vw, 2.2rem); flex: 1; }
.lib-pagehead { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.4rem; }
.lib-pagehead h1 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin: 0; line-height: 1.1; }
.lib-pagehead p { margin: .35rem 0 0; color: var(--lib-muted); max-width: 60ch; }
.lib-crumbs { font-size: .82rem; color: var(--lib-muted); margin-bottom: .35rem; display: flex; gap: .4rem; flex-wrap: wrap; }
.lib-crumbs a { color: var(--lib-muted); text-decoration: none; padding: .3rem 0; } .lib-crumbs a:hover { color: var(--lib-primary-ink); text-decoration: underline; }
.lib-tabbar { display: none; }
.lib-subnav { display: flex; gap: .3rem; flex-wrap: wrap; margin-bottom: 1.5rem; padding: .3rem; background: var(--lib-surface-2); border: 1px solid var(--lib-line); border-radius: 16px; width: fit-content; max-width: 100%; overflow-x: auto; }
.lib-subnav a { padding: .5rem .95rem; border-radius: 12px; color: var(--lib-ink-2); text-decoration: none; font-weight: 600; font-size: .9rem; white-space: nowrap; }
@media (max-width: 575.98px) { .lib-subnav { flex-wrap: nowrap; width: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; } .lib-subnav::-webkit-scrollbar { display: none; } .lib-subnav a { flex: none; } }
.lib-subnav a:hover { background: rgba(var(--lib-primary-rgb), .08); }
.lib-subnav a.is-active { background: var(--lib-surface); color: var(--lib-primary-ink); box-shadow: 0 1px 0 var(--lib-line), 0 6px 14px -10px var(--lib-shadow); }
.lib-banner { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; padding: .7rem clamp(1rem, 3vw, 2.2rem); background: var(--lib-warn-soft); color: var(--lib-warn); border-bottom: 1px solid var(--lib-line); font-weight: 600; font-size: .92rem; }

@media (max-width: 991.98px) {
  .lib-rail { display: none; }
  .lib-main { margin-left: 0; }
  .lib-content { padding-bottom: 96px; }
  .lib-tabbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-rail); background: color-mix(in srgb, var(--lib-surface) 94%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--lib-line); padding: 6px 6px calc(6px + env(safe-area-inset-bottom)); justify-content: space-around; }
  .lib-tabbar a { flex: 1; min-width: 0; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 2px; border-radius: 12px; color: var(--lib-ink-2); font-size: .64rem; font-weight: 650; text-decoration: none; text-align: center; line-height: 1.1; }
  .lib-tabbar a .ic { width: 22px; height: 22px; }
  .lib-tabbar a.is-active { color: var(--lib-primary-ink); background: var(--lib-primary-soft); }
  .lib-search-btn { min-width: 0; }
  .lib-search-btn span.lib-search-btn__text, .lib-search-btn .lib-kbd { display: none; }
  .lib-search-btn { width: 42px; height: 42px; padding: 0; justify-content: center; }
  .lib-topbar__lib { max-width: 46vw; }
}

/* ---- tables ---- */
.lib-table-wrap { overflow-x: auto; border: 1px solid var(--lib-line); border-radius: var(--lib-radius); background: var(--lib-surface); }
.lib-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .93rem; }
.lib-table th { position: sticky; top: 0; background: var(--lib-surface-2); text-align: left; font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--lib-muted); padding: .75rem 1rem; border-bottom: 1px solid var(--lib-line); white-space: nowrap; }
.lib-table td { padding: .85rem 1rem; border-bottom: 1px solid var(--lib-line-2); vertical-align: middle; }
.lib-table tr:last-child td { border-bottom: 0; }
.lib-table tbody tr { transition: background .12s; }
.lib-table tbody tr:hover { background: color-mix(in srgb, var(--lib-primary-soft) 55%, transparent); }
.lib-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.lib-person { display: flex; align-items: center; gap: .75rem; min-width: 0; }
.lib-person strong { display: block; line-height: 1.2; }
.lib-person small { color: var(--lib-muted); }
.lib-pager { display: flex; align-items: center; justify-content: center; gap: 1rem; padding: 1rem; color: var(--lib-muted); font-size: .9rem; }
.lib-pager a { text-decoration: none; font-weight: 600; }

/* ---- permission matrix ---- */
.lib-matrix-wrap { overflow-x: auto; border: 1px solid var(--lib-line); border-radius: var(--lib-radius); background: var(--lib-surface); }
.lib-matrix { border-collapse: separate; border-spacing: 0; width: 100%; min-width: 760px; font-size: .9rem; }
.lib-matrix th, .lib-matrix td { padding: .55rem .6rem; text-align: center; border-bottom: 1px solid var(--lib-line-2); }
.lib-matrix thead th { position: sticky; top: 0; z-index: 2; background: var(--lib-surface-2); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--lib-muted); }
.lib-matrix th:first-child, .lib-matrix td:first-child { text-align: left; position: sticky; left: 0; z-index: 1; background: var(--lib-surface); min-width: 210px; font-weight: 650; box-shadow: 1px 0 0 var(--lib-line-2); }
.lib-matrix thead th:first-child { z-index: 3; background: var(--lib-surface-2); }
.lib-matrix td .form-check-input { margin: 0; cursor: pointer; }
.lib-matrix td.na { color: var(--lib-line); }
.lib-matrix tr:hover td { background: color-mix(in srgb, var(--lib-primary-soft) 45%, var(--lib-surface)); }
.lib-matrix .row-all { font-size: .72rem; font-weight: 600; margin-left: .5rem; }
.lib-extras { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: .5rem .9rem; }
.lib-extras label { display: flex; gap: .6rem; align-items: flex-start; padding: .5rem .65rem; border: 1px solid var(--lib-line-2); border-radius: 12px; cursor: pointer; font-size: .9rem; }
.lib-extras label:hover { background: var(--lib-primary-soft); }
.lib-extras small { display: block; color: var(--lib-muted); }

/* ---- command palette ---- */
.lib-palette { position: fixed; inset: 0; z-index: var(--z-palette); background: rgba(20, 16, 8, .45); backdrop-filter: blur(3px); display: none; align-items: flex-start; justify-content: center; padding: 12vh 1rem 1rem; }
.lib-palette.is-open { display: flex; animation: lib-fade .15s var(--lib-ease); }
.lib-palette__panel { width: min(640px, 100%); background: var(--lib-surface); border: 1px solid var(--lib-line); border-radius: 20px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.6); overflow: hidden; animation: lib-pop .18s var(--lib-ease); }
.lib-palette__input { display: flex; align-items: center; gap: .7rem; padding: 1rem 1.1rem; border-bottom: 1px solid var(--lib-line); }
.lib-palette__input input { flex: 1; border: 0; background: transparent; color: var(--lib-ink); font-size: 1.1rem; outline: none; min-width: 0; }
.lib-palette__list { max-height: 50vh; overflow-y: auto; padding: .4rem; }
.lib-palette__item { display: flex; align-items: center; gap: .8rem; padding: .7rem .8rem; border-radius: 12px; color: var(--lib-ink); text-decoration: none; cursor: pointer; }
.lib-palette__item .ic { color: var(--lib-muted); }
.lib-palette__item.is-sel { background: var(--lib-primary-soft); color: var(--lib-primary-ink); }
.lib-palette__item.is-sel .ic { color: var(--lib-primary-ink); }
.lib-palette__empty { padding: 1.6rem; text-align: center; color: var(--lib-muted); }
.lib-palette__foot { display: flex; gap: 1rem; padding: .6rem 1rem; border-top: 1px solid var(--lib-line); color: var(--lib-muted); font-size: .8rem; }
@keyframes lib-fade { from { opacity: 0 } to { opacity: 1 } }
@keyframes lib-pop { from { opacity: 0; transform: translateY(8px) scale(.98) } to { opacity: 1; transform: none } }

/* ---- toasts ---- */
.lib-toasts { position: fixed; right: 1rem; bottom: 1rem; z-index: var(--z-toast); display: flex; flex-direction: column; gap: .6rem; max-width: min(420px, calc(100vw - 2rem)); }
.lib-toast { display: flex; gap: .7rem; align-items: flex-start; padding: .85rem 1rem; border-radius: 14px; background: var(--lib-ink); color: var(--lib-bg); box-shadow: 0 20px 40px -18px rgba(0,0,0,.6); animation: lib-pop .2s var(--lib-ease); font-size: .93rem; }
.lib-toast--ok .ic { color: #7ee2a8; } .lib-toast--danger .ic { color: #ff9f8c; } .lib-toast--warn .ic { color: #ffd37a; }
.lib-toast button { margin-left: auto; background: transparent; border: 0; color: inherit; opacity: .7; padding: 0 .2rem; }
@media (max-width: 991.98px) { .lib-toasts { bottom: 84px; } }

/* ---- searchable select ---- */
.lib-live { position: relative; }
.lib-live__btn { width: 100%; text-align: left; display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.lib-live__panel { position: absolute; z-index: 50; left: 0; right: 0; top: calc(100% + 6px); background: var(--lib-surface); border: 1.5px solid var(--lib-primary-line); border-radius: 14px; box-shadow: 0 24px 40px -20px var(--lib-shadow); overflow: hidden; display: none; }
.lib-live.is-open .lib-live__panel { display: block; animation: lib-pop .14s var(--lib-ease); }
.lib-live__search { width: 100%; border: 0; border-bottom: 1px solid var(--lib-line); padding: .7rem .9rem; background: var(--lib-surface-2); color: var(--lib-ink); outline: none; }
.lib-live__list { max-height: 260px; overflow-y: auto; padding: .3rem; }
.lib-live__opt { padding: .5rem .7rem; border-radius: 10px; cursor: pointer; font-size: .93rem; }
.lib-live__opt:hover, .lib-live__opt.is-sel { background: var(--lib-primary-soft); color: var(--lib-primary-ink); }
.lib-live__opt.is-cur { font-weight: 700; }

/* ---- progress, checklist, stepper, meters ---- */
.lib-progress { height: 10px; border-radius: 99px; background: var(--lib-surface-2); border: 1px solid var(--lib-line); overflow: hidden; }
.lib-progress > i { display: block; height: 100%; background: var(--lib-primary); border-radius: 99px; transition: width .5s var(--lib-ease); }
.lib-check { display: flex; gap: .85rem; align-items: flex-start; padding: .85rem 0; border-bottom: 1px solid var(--lib-line-2); }
.lib-check:last-child { border-bottom: 0; }
.lib-check__dot { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--lib-line); display: grid; place-items: center; flex: none; color: transparent; margin-top: .1rem; }
.lib-check.is-done .lib-check__dot { background: var(--lib-primary); border-color: var(--lib-primary); color: var(--lib-on-primary); }
.lib-check.is-soon { opacity: .6; }
.lib-check h3 { font-size: 1rem; margin: 0; font-family: var(--lib-font); font-weight: 650; }
.lib-check p { margin: .1rem 0 0; color: var(--lib-muted); font-size: .88rem; }
.lib-stepper { display: flex; gap: .4rem; flex-wrap: wrap; margin: 0 0 1.6rem; padding: 0; list-style: none; }
.lib-stepper li { display: flex; align-items: center; gap: .45rem; font-size: .8rem; font-weight: 650; color: var(--lib-muted); }
.lib-stepper li::after { content: ""; width: 18px; height: 2px; background: var(--lib-line); margin-left: .15rem; }
.lib-stepper li:last-child::after { display: none; }
.lib-stepper b { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--lib-line); font-size: .75rem; }
.lib-stepper li.is-done b { background: var(--lib-primary); border-color: var(--lib-primary); color: var(--lib-on-primary); }
.lib-stepper li.is-now { color: var(--lib-ink); } .lib-stepper li.is-now b { border-color: var(--lib-primary); color: var(--lib-primary-ink); }
.lib-stepper li span { display: none; } .lib-stepper li.is-now span { display: inline; color: var(--lib-ink); }
.lib-stepper { gap: .3rem; flex-wrap: nowrap; align-items: center; } .lib-stepper li::after { width: 12px; }
.lib-meter { display: flex; gap: 4px; margin-top: .45rem; }
.lib-meter i { flex: 1; height: 6px; border-radius: 99px; background: var(--lib-line); transition: background .2s; }
.lib-meter[data-level="1"] i:nth-child(-n+1) { background: var(--lib-danger); }
.lib-meter[data-level="2"] i:nth-child(-n+2) { background: var(--lib-warn); }
.lib-meter[data-level="3"] i:nth-child(-n+3) { background: #7aa33a; }
.lib-meter[data-level="4"] i:nth-child(-n+4) { background: var(--lib-ok); }

/* ---- option cards (installer, themes) ---- */
.lib-opt { display: block; position: relative; cursor: pointer; height: 100%; }
.lib-opt input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.lib-opt__box { display: flex; gap: .9rem; align-items: flex-start; padding: 1rem 1.1rem; border: 2px solid var(--lib-line); border-radius: 16px; background: var(--lib-surface); height: 100%; transition: border-color .15s, box-shadow .15s, transform .15s var(--lib-ease); }
.lib-opt:hover .lib-opt__box { border-color: var(--lib-primary-line); transform: translateY(-2px); }
.lib-opt input:checked + .lib-opt__box { border-color: var(--lib-primary); box-shadow: 0 0 0 4px rgba(var(--lib-primary-rgb), .14); background: var(--lib-primary-soft); }
.lib-opt input:focus-visible + .lib-opt__box { outline: 3px solid rgba(var(--lib-primary-rgb), .55); outline-offset: 2px; }
.lib-opt__box .lib-ico { width: 42px; height: 42px; border-radius: 13px; background: var(--lib-primary-soft); color: var(--lib-primary-ink); display: grid; place-items: center; flex: none; }
.lib-opt input:checked + .lib-opt__box .lib-ico { background: var(--lib-primary); color: var(--lib-on-primary); }
.lib-opt__box strong { display: block; line-height: 1.2; } .lib-opt__box small { color: var(--lib-muted); display: block; margin-top: .15rem; }
.lib-swatches { display: flex; gap: .5rem; flex-wrap: wrap; }
.lib-swatch { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--lib-surface); box-shadow: 0 0 0 1.5px var(--lib-line); background: var(--c); cursor: pointer; padding: 0; }
.lib-swatch:hover { transform: scale(1.1); } .lib-swatch.is-on { box-shadow: 0 0 0 3px var(--c); }

/* ---- the shelf: spines on a board (sign-in art, installer, empty states) ---- */
.lib-shelf { display: flex; align-items: flex-end; gap: 7px; height: var(--shelf-h, 230px); padding: 0 28px; border-bottom: 12px solid rgba(0,0,0,.28); box-shadow: 0 14px 0 -2px rgba(0,0,0,.12); }
.lib-shelf i { display: block; position: relative; width: var(--w, 30px); height: var(--h, 160px); background: var(--sp); border-radius: 4px 4px 2px 2px; box-shadow: inset -7px 0 0 rgba(0,0,0,.14), inset 3px 0 0 rgba(255,255,255,.14); animation: lib-rise .7s var(--lib-ease) both; animation-delay: calc(var(--i, 0) * 45ms); }
.lib-shelf i::before, .lib-shelf i::after { content: ""; position: absolute; left: 0; right: 0; height: 3px; background: rgba(255,255,255,.4); }
.lib-shelf i::before { top: 14%; } .lib-shelf i::after { bottom: 14%; }
.lib-shelf i.lean { transform: rotate(-9deg); transform-origin: bottom left; margin-left: 16px; animation-name: lib-rise-lean; }
@keyframes lib-rise { from { opacity: 0; transform: translateY(40px) } to { opacity: 1; transform: none } }
@keyframes lib-rise-lean { from { opacity: 0; transform: translateY(40px) rotate(-9deg) } to { opacity: 1; transform: rotate(-9deg) } }

/* ---- sign-in / installer / error shells ---- */
.lib-auth { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
.lib-auth__art { background: var(--lib-primary); color: var(--lib-on-primary); padding: clamp(2rem, 5vw, 4rem); display: flex; flex-direction: column; justify-content: space-between; gap: 2rem; position: relative; overflow: hidden; }
.lib-auth__art::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 20% 0%, rgba(255,255,255,.18), transparent 55%); pointer-events: none; }
.lib-auth__art h1 { color: inherit; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; margin: 0; max-width: 14ch; }
.lib-auth__art p { max-width: 38ch; opacity: .9; font-size: 1.05rem; margin: 1rem 0 0; }
.lib-auth__art .lib-shelf { position: relative; z-index: 1; margin: 0 -2rem -1px; }
.lib-auth__form { display: grid; place-items: center; padding: clamp(1.5rem, 5vw, 3rem); }
.lib-auth__box { width: min(420px, 100%); }
.lib-auth__box h2 { font-size: 1.9rem; margin: 0 0 .3rem; }
@media (max-width: 860px) { .lib-auth { grid-template-columns: 1fr; } .lib-auth__art { padding: 1.6rem; min-height: 0; } .lib-auth__art .lib-shelf { --shelf-h: 110px; margin: 0 -1.6rem -1.6rem; padding: 0 1.6rem; } .lib-auth__art p { display: none; } .lib-auth__art h1 { font-size: 1.8rem; } }
.lib-wizard { max-width: 880px; margin: 0 auto; padding: clamp(1rem, 4vw, 2.5rem) 1rem 4rem; }
.lib-wizard__head { display: flex; align-items: center; gap: .9rem; margin-bottom: 1.6rem; }
.lib-wizard__head .lib-rail__brand { margin: 0; height: auto; }
.lib-task { display: flex; gap: .8rem; align-items: center; padding: .8rem 0; border-bottom: 1px solid var(--lib-line-2); }
.lib-task__st { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--lib-line); flex: none; }
.lib-task.is-run .lib-task__st { border-color: var(--lib-primary); border-top-color: transparent; animation: lib-spin .8s linear infinite; }
.lib-task.is-ok .lib-task__st { background: var(--lib-primary); border-color: var(--lib-primary); color: var(--lib-on-primary); }
.lib-task.is-err .lib-task__st { background: var(--lib-danger); border-color: var(--lib-danger); color: var(--lib-on-danger); }
@keyframes lib-spin { to { transform: rotate(360deg) } }
.lib-preview { position: sticky; top: 1rem; }
.lib-preview .lib-chip { margin: 0 .3rem .35rem 0; }

/* ---- misc ---- */
.lib-stat { display: flex; flex-direction: column; gap: .15rem; }
.lib-stat b { font-family: var(--lib-serif); font-size: 2.1rem; line-height: 1; }
.lib-skeleton { background: linear-gradient(90deg, var(--lib-surface-2), var(--lib-line-2), var(--lib-surface-2)); background-size: 200% 100%; animation: lib-shimmer 1.3s infinite; border-radius: 10px; min-height: 1em; }
@keyframes lib-shimmer { to { background-position: -200% 0 } }
.lib-code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85em; background: var(--lib-surface-2); border: 1px solid var(--lib-line); padding: .1rem .4rem; border-radius: 6px; }
.lib-sg-swatch { height: 64px; border-radius: 14px; border: 1px solid var(--lib-line); display: flex; align-items: flex-end; padding: .4rem .6rem; font-size: .72rem; font-weight: 700; }
.dropdown-menu { border-radius: 14px; padding: .4rem; box-shadow: 0 24px 40px -20px var(--lib-shadow); max-height: min(34rem, calc(100vh - 6rem)); overflow-y: auto; overscroll-behavior: contain; }
.dropdown-item { border-radius: 10px; padding: .5rem .7rem; display: flex; gap: .6rem; align-items: center; }
.modal-content { box-shadow: 0 40px 80px -30px rgba(0,0,0,.6); }
.table-responsive { border-radius: var(--lib-radius); }
.sticky-save { position: sticky; bottom: 0; z-index: 20; margin: 1.5rem -1px -1px; padding: .9rem 1.1rem; background: color-mix(in srgb, var(--lib-surface) 94%, transparent); backdrop-filter: blur(8px); border: 1px solid var(--lib-line); border-radius: var(--lib-radius); display: flex; gap: .7rem; align-items: center; justify-content: flex-end; flex-wrap: wrap; box-shadow: 0 -18px 30px -24px var(--lib-shadow); }
html[data-theme=contrast] .lib-card, html[data-theme=contrast] .form-control, html[data-theme=contrast] .form-select, html[data-theme=contrast] .btn, html[data-theme=contrast] .lib-table-wrap { border-width: 2px; border-color: #000; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; } }
@media (max-width: 575.98px) {   /* a phone's save bar is one row, so it never covers a quarter of the form */
  .sticky-save { flex-wrap: nowrap; padding: .55rem .6rem; gap: .4rem; }
  .sticky-save .btn { white-space: nowrap; padding-left: .8rem; padding-right: .8rem; }
  .sticky-save .lib-hint { min-width: 0; font-size: .78rem; line-height: 1.25; }
}
@media print { .lib-rail, .lib-topbar, .lib-tabbar, .lib-toasts, .lib-palette, .sticky-save, .btn { display: none !important; } .lib-main { margin: 0; } body { background: #fff; color: #000; } .lib-card { box-shadow: none; } }