:root{
  --bg:#f5f6f8;--surface:#ffffff;--surface-2:#f0f2f5;--text:#263044;--text-soft:#5a6678;--text-faint:#606c7e;
  --accent:#b3470a;--accent-strong:#9a3b05;--accent-soft:rgba(249,101,12,.11);--success:#377c5c;--danger:#a64a4a;--line:rgba(82,94,114,.14);
  --shadow-out:0 2px 8px rgba(38,48,68,.035);
  --shadow-out-sm:0 0 0 1px var(--line);
  --shadow-in:inset 0 0 0 1px rgba(82,94,114,.24);
  --radius:22px;--radius-sm:15px;--container:1120px;--tap:44px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}.ltr{direction:ltr;text-align:left;unicode-bidi:plaintext}.hidden,[hidden]{display:none!important}.muted{color:var(--text-soft)}
.skip-link{position:fixed;top:8px;right:8px;z-index:999;transform:translateY(-160%);background:#fff;color:#111;padding:10px 14px;border-radius:10px}.skip-link:focus{transform:none}
:focus-visible{outline:3px solid rgba(116,81,22,.42);outline-offset:3px}
.shell{width:min(calc(100% - 24px),var(--container));margin-inline:auto}.topbar{position:sticky;top:0;z-index:60;background:rgba(245,246,248,.96);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.6)}.topbar-inner{min-height:66px;display:flex;align-items:center;gap:10px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}.brand-mark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;box-shadow:var(--shadow-out-sm);color:var(--accent-strong);font-weight:900;background:var(--surface);flex:none}.brand-copy{min-width:0}.brand-title{display:block;font-size:14px;font-weight:900;white-space:nowrap}.brand-subtitle{display:none;font-size:11px;color:var(--text-soft)}.desktop-nav{display:none}.header-actions{margin-right:auto;display:flex;align-items:center;gap:8px}.icon-btn,.menu-btn{width:var(--tap);height:var(--tap);border:0;border-radius:14px;background:var(--surface);box-shadow:var(--shadow-out-sm);display:grid;place-items:center;color:var(--text);cursor:pointer;text-decoration:none}.icon-btn svg,.menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.mobile-menu{position:relative}.mobile-menu summary{list-style:none}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu-panel{position:absolute;top:54px;left:0;width:min(260px,calc(100vw - 28px));padding:12px;border-radius:18px;background:var(--surface);box-shadow:var(--shadow-out);display:grid;gap:6px}.mobile-menu-panel a{padding:11px 12px;border-radius:12px;text-decoration:none;font-weight:800;font-size:12px}.mobile-menu-panel a:hover,.mobile-menu-panel a:focus-visible{box-shadow:var(--shadow-in);color:var(--accent-strong)}
main{padding-top:18px}.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--text-soft);font-size:12px;margin:4px 0 18px}.breadcrumb a{text-decoration:none}.neo-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-out)}.page-card,.home-hero{padding:24px}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:900;letter-spacing:.06em;color:var(--accent-strong);text-transform:uppercase}.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}h1{font-size:32px;line-height:1.28;margin:12px 0 10px;letter-spacing:-.025em}h2,h3,p{overflow-wrap:anywhere}.hero-desc{max-width:760px;margin:0;color:var(--text-soft);font-size:14px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.primary-btn,.soft-btn,.text-btn{min-height:var(--tap);border:0;border-radius:15px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:900;font-size:13px;cursor:pointer}.primary-btn{background:var(--accent);color:#fff;box-shadow:0 5px 14px rgba(116,81,22,.18)}.soft-btn{background:var(--surface);color:var(--text);box-shadow:var(--shadow-out-sm)}.text-btn{background:transparent;color:var(--accent-strong);padding-inline:8px}.btn-disabled{opacity:.55;pointer-events:none}.section{margin-top:34px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px}.section-title{margin:0;font-size:22px}.section-subtitle{margin:4px 0 0;color:var(--text-soft);font-size:13px}.text-link{font-size:12px;font-weight:900;color:var(--accent-strong);text-decoration:none;white-space:nowrap}
.home-search{margin-top:18px;display:grid;grid-template-columns:1fr;gap:10px}.search-box{position:relative}.search-box input{padding-left:48px}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:19px;height:19px;stroke:var(--text-soft);fill:none;stroke-width:1.8}.level-grid{display:grid;grid-template-columns:1fr;gap:14px}.level-card{padding:20px;text-decoration:none;display:flex;align-items:center;gap:16px}.level-code{width:62px;height:62px;border-radius:19px;display:grid;place-items:center;box-shadow:var(--shadow-in);font-size:24px;font-weight:900;color:var(--accent-strong);flex:none}.level-card h3{margin:0;font-size:16px}.level-card p{margin:3px 0 0;font-size:13px;color:var(--text-soft)}.level-card-meta{margin-right:auto;color:var(--text-faint);font-size:11px;white-space:nowrap}
.level-header{padding:24px}.level-switcher{display:flex;gap:9px;overflow:auto;padding:5px 2px 12px;scrollbar-width:none}.level-switcher::-webkit-scrollbar{display:none}.level-chip{min-width:58px;min-height:44px;border-radius:14px;display:grid;place-items:center;text-decoration:none;font-weight:900;color:var(--text-soft);box-shadow:var(--shadow-out-sm);background:var(--surface)}.level-chip.active{box-shadow:var(--shadow-in);color:var(--accent-strong)}
.course-card{padding:20px}.course-card-top{display:flex;align-items:flex-start;gap:14px}.course-cover{width:72px;height:92px;border-radius:18px;box-shadow:var(--shadow-in);display:grid;place-items:center;color:var(--accent-strong);font-weight:900;flex:none}.course-copy{min-width:0}.course-copy h3{margin:0 0 5px;font-size:18px}.course-copy p{margin:0;color:var(--text-soft);font-size:13px}.meta-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.meta-pill,.priority-badge,.status-badge{display:inline-flex;align-items:center;min-height:28px;padding:4px 9px;border-radius:99px;font-size:11px;font-weight:850}.meta-pill{box-shadow:var(--shadow-in);color:var(--text-soft)}.priority-badge{background:var(--accent-soft);color:var(--accent-strong)}.status-badge.ok{background:rgba(55,124,92,.11);color:var(--success)}.status-badge.broken{background:rgba(166,74,74,.11);color:var(--danger)}.course-assets-preview{display:grid;gap:8px;margin-top:18px}.asset-line{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);text-decoration:none}.asset-line:last-child{border-bottom:0}.asset-icon,.resource-icon{width:42px;height:42px;border-radius:14px;box-shadow:var(--shadow-in);display:grid;place-items:center;color:var(--accent-strong);flex:none}.asset-icon svg,.resource-icon svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.asset-line strong{font-size:13px}.asset-line small{display:block;color:var(--text-soft);font-size:11px;margin-top:2px}.asset-arrow{margin-right:auto;color:var(--text-faint)}
.skill-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.skill-card{padding:17px;text-decoration:none;min-height:128px;display:flex;flex-direction:column}.skill-card h3{font-size:15px;margin:14px 0 3px}.skill-card p{font-size:12px;color:var(--text-soft);margin:0}.skill-count{margin-top:auto;padding-top:12px;color:var(--accent-strong);font-size:11px;font-weight:900}
.resource-grid{display:grid;gap:14px}.resource-card{padding:18px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:13px;align-items:start}.resource-main{min-width:0}.resource-main h3{font-size:15px;margin:0 0 4px}.resource-main p{margin:0;color:var(--text-soft);font-size:13px}.resource-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.resource-actions{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap}.resource-actions>*{flex:1}.resource-provider{font-size:11px;color:var(--text-faint);margin-top:8px}.empty-state{padding:28px;text-align:center}.empty-state h3{margin:0 0 6px;font-size:16px}.empty-state p{margin:0 auto 16px;max-width:520px;color:var(--text-soft);font-size:13px}
.filters{padding:16px;display:grid;gap:12px}.field{display:grid;gap:6px;min-width:0}.field label{font-size:12px;font-weight:900;color:var(--text-soft)}.input,.select,.textarea{width:100%;min-height:46px;border:0;border-radius:14px;background:var(--surface);box-shadow:var(--shadow-in);padding:10px 13px;color:var(--text)}.textarea{min-height:110px;resize:vertical}.input::placeholder,.textarea::placeholder{color:var(--text-faint)}.filter-summary{margin-top:12px;font-size:11px;color:var(--text-soft)}
.detail-grid{display:grid;gap:16px}.detail-main,.detail-side{padding:22px}.detail-list{display:grid}.detail-line{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:12px}.detail-line:last-child{border-bottom:0}.detail-line span{color:var(--text-soft)}.detail-line strong,.detail-line a{font-size:12px;text-align:left}.notice{margin-top:18px;padding:13px;border-radius:14px;box-shadow:var(--shadow-in);font-size:12px;color:var(--text-soft)}
.footer{margin-top:56px;padding:26px 0 32px;text-align:center;color:var(--text-faint);font-size:11px;border-top:1px solid rgba(255,255,255,.45)}.footer-signature{display:block;margin-top:5px;color:var(--accent-strong);font-family:cursive;font-size:16px;font-style:italic}.footer a{text-decoration:none}
/* Admin: mobile-first */
.admin-page{padding-bottom:32px}.admin-hero{padding:22px}.admin-status{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.admin-tabs-wrap{position:sticky;top:66px;z-index:40;background:rgba(245,246,248,.98);padding:10px 0}.admin-tabs{display:flex;gap:8px;overflow:auto;scrollbar-width:none;padding:3px}.admin-tabs::-webkit-scrollbar{display:none}.admin-tab-btn{min-height:44px;white-space:nowrap;border:0;background:var(--surface);box-shadow:var(--shadow-out-sm);border-radius:14px;padding:9px 13px;color:var(--text-soft);font-weight:900;font-size:12px;cursor:pointer}.admin-tab-btn.active{box-shadow:var(--shadow-in);color:var(--accent-strong)}.admin-panel{margin-top:16px}.admin-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.admin-toolbar>*{flex:1}.admin-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stat-card{padding:16px;text-align:center}.stat-card strong{display:block;font-size:24px;color:var(--accent-strong)}.stat-card span{font-size:11px;color:var(--text-soft)}.health-list{display:grid;gap:10px;margin-top:16px}.health-item{padding:14px;border-radius:15px;box-shadow:var(--shadow-in);display:flex;justify-content:space-between;gap:12px;font-size:12px}.admin-list{display:grid;gap:12px}.admin-card{padding:17px}.admin-card-head{display:flex;align-items:flex-start;gap:12px}.admin-card-copy{min-width:0;flex:1}.admin-card h3{margin:0 0 4px;font-size:14px}.admin-card p{margin:0;color:var(--text-soft);font-size:11px}.admin-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:13px}.small-btn{min-height:40px;border:0;background:var(--surface);box-shadow:var(--shadow-out-sm);border-radius:12px;padding:8px 11px;font-size:11px;font-weight:900;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.small-btn.danger{color:var(--danger)}.admin-filterbar{padding:14px;display:grid;gap:10px;margin-bottom:14px}.admin-editor-backdrop{position:fixed;inset:0;z-index:100;background:rgba(38,48,68,.26);backdrop-filter:blur(5px);display:flex;align-items:flex-end}.admin-editor{width:100%;max-height:92dvh;overflow:auto;background:var(--surface);border-radius:24px 24px 0 0;box-shadow:0 -12px 40px rgba(38,48,68,.18);padding:18px 14px 24px}.editor-head{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:-18px;background:var(--surface);padding:12px 0;z-index:2}.editor-head h2{margin:0;font-size:17px}.editor-close{width:44px;height:44px;border:0;border-radius:14px;background:var(--surface);box-shadow:var(--shadow-out-sm);cursor:pointer}.form-grid{display:grid;gap:14px}.advanced-box{margin-top:14px;border:0}.advanced-box summary{cursor:pointer;font-size:12px;font-weight:900;color:var(--accent-strong);padding:10px 0}.editor-actions{position:sticky;bottom:-24px;background:linear-gradient(to top,var(--surface) 78%,rgba(233,237,242,0));padding:20px 0 6px;display:flex;gap:8px}.editor-actions>*{flex:1}.upload-row{display:grid;grid-template-columns:1fr;gap:8px}.sync-notice{padding:13px;border-radius:14px;box-shadow:var(--shadow-in);font-size:11px;color:var(--text-soft)}.danger-zone{padding:16px;border:1px solid rgba(166,74,74,.18);border-radius:16px;margin-top:16px}.danger-zone h3{margin:0 0 6px;color:var(--danger);font-size:13px}.backup-grid{display:grid;gap:12px}.file-input-label{cursor:pointer}.file-input-label input{display:none}
.auth-shell{max-width:520px;margin:24px auto}.auth-card{padding:24px}.auth-form{display:grid;gap:14px;margin-top:18px}.auth-message{font-size:12px;color:var(--text-soft);min-height:20px}
.toast{position:fixed;right:12px;left:12px;bottom:14px;z-index:200;background:var(--surface);box-shadow:var(--shadow-out);padding:13px 15px;border-radius:15px;font-size:12px;text-align:center}
@media(min-width:560px){.shell{width:min(calc(100% - 36px),var(--container))}.brand-subtitle{display:block}.level-grid{grid-template-columns:1fr 1fr}.resource-grid{grid-template-columns:1fr 1fr}.filters{grid-template-columns:1fr 1fr}.admin-filterbar{grid-template-columns:1fr 150px 150px}.admin-stats{grid-template-columns:repeat(4,1fr)}.form-grid{grid-template-columns:1fr 1fr}.span-2{grid-column:1/-1}.upload-row{grid-template-columns:1fr auto}.admin-editor{padding:22px 20px 26px}.toast{right:auto;left:20px;max-width:340px}.home-search{grid-template-columns:1fr auto}}
@media(min-width:760px){.skill-grid{grid-template-columns:repeat(3,1fr)}.course-card{padding:24px}.course-assets-preview{grid-template-columns:1fr 1fr;gap:0 18px}.detail-grid{grid-template-columns:minmax(0,1.4fr) minmax(250px,.6fr)}.backup-grid{grid-template-columns:1fr 1fr}}
@media(min-width:900px){.topbar-inner{min-height:76px}.desktop-nav{display:flex;gap:4px;margin-right:auto}.desktop-nav a{min-height:42px;display:flex;align-items:center;padding:8px 12px;border-radius:13px;text-decoration:none;font-size:12px;font-weight:900;color:var(--text-soft)}.desktop-nav a.active,.desktop-nav a:hover{box-shadow:var(--shadow-in);color:var(--accent-strong)}.mobile-menu{display:none}.header-actions{margin-right:0}.page-card,.home-hero{padding:34px}h1{font-size:42px}.level-grid{grid-template-columns:repeat(3,1fr)}.resource-grid{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:2fr repeat(3,1fr)}.admin-tabs-wrap{top:76px}.admin-page-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:22px;align-items:start}.admin-tabs-wrap{position:sticky;top:96px;padding:0;background:transparent}.admin-tabs{display:grid;overflow:visible}.admin-tab-btn{text-align:right}.admin-panel{margin-top:0}.admin-editor-backdrop{align-items:center;justify-content:center;padding:24px}.admin-editor{max-width:760px;max-height:88vh;border-radius:24px;padding:24px}.editor-head{top:-24px}.editor-actions{bottom:-24px}.admin-toolbar>*{flex:0 0 auto}}
@media(min-width:1100px){.resource-grid{grid-template-columns:repeat(3,1fr)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* v7 mobile-first refinements */
body{padding-bottom:72px}
.quick-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.quick-links a{min-height:42px;display:inline-flex;align-items:center;padding:8px 12px;border-radius:12px;text-decoration:none;font-size:12px;font-weight:800;box-shadow:var(--shadow-out-sm)}
.special-teaser{display:grid;gap:18px;padding:22px}.special-teaser h2{margin:6px 0 8px;font-size:22px}.special-teaser p{margin:0;color:var(--text-soft)}
.course-grid{display:grid;gap:14px}.mini-course-card{display:grid;gap:16px;padding:20px}.mini-course-copy h3{margin:7px 0 8px;font-size:20px}.mini-course-copy p{margin:0;color:var(--text-soft)}
.roadmap-compact{display:grid;grid-template-columns:1fr;gap:10px;margin:0;padding:0;list-style:none;counter-reset:step}.roadmap-compact a{display:flex;gap:12px;align-items:center;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:14px;text-decoration:none;min-height:72px}.step-number{display:grid;place-items:center;width:30px;height:30px;flex:none;border-radius:50%;background:var(--accent-soft);color:var(--accent-strong);font-weight:800}.roadmap-compact strong{font-size:14px}.roadmap-compact small{display:block;font-size:12px;color:var(--text-soft);overflow-wrap:anywhere}.roadmap-compact li:first-child a{border-color:var(--accent)}

.mobile-bottom-nav{position:fixed;z-index:80;left:10px;right:10px;bottom:calc(8px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;padding:6px;border-radius:18px;background:rgba(245,246,248,.98);backdrop-filter:blur(18px);box-shadow:var(--shadow-out);border:1px solid rgba(255,255,255,.68)}.mobile-bottom-nav a{min-height:46px;display:flex;align-items:center;justify-content:center;text-align:center;border-radius:13px;text-decoration:none;font-size:11px;font-weight:900;color:var(--text-soft)}.mobile-bottom-nav a.active{box-shadow:var(--shadow-in);color:var(--accent-strong)}
.field-help{display:block;margin-top:7px;color:var(--text-soft);font-size:11px;line-height:1.7}.admin-filterbar-v7{grid-template-columns:1fr}.course-filterbar{display:grid;gap:12px;padding:16px}.admin-page{padding-bottom:90px}
@media(min-width:560px){.special-teaser{grid-template-columns:1fr auto;align-items:center}.course-grid{grid-template-columns:1fr 1fr}.admin-filterbar-v7{grid-template-columns:1fr 1fr}.course-filterbar{grid-template-columns:1fr 1fr}}
@media(min-width:900px){body{padding-bottom:0}.mobile-bottom-nav{display:none}.admin-page{padding-bottom:0}.course-grid{grid-template-columns:repeat(2,1fr)}}

/* Accessibility and quieter visual hierarchy. */
:focus-visible{outline:3px solid var(--accent-strong);outline-offset:3px}
h1{overflow-wrap:anywhere}.section-head{flex-wrap:wrap}.resource-card{align-content:start}.resource-actions{align-self:end}.resource-card .meta-pill{box-shadow:none;padding:2px 0;min-height:24px;font-weight:500}.resource-tags{column-gap:12px}.priority-extra .priority-badge{background:var(--surface-2);color:var(--text-soft)}.priority-essential{border-inline-start:3px solid var(--accent)}.priority-extra{box-shadow:none}.small-btn,.quick-links a,.text-link{min-height:44px}.text-link{display:inline-flex;align-items:center}.level-chip.active,.admin-tab-btn.active,.mobile-bottom-nav a.active{background:var(--accent-soft);border-bottom:2px solid var(--accent)}.level-card>div{min-width:0}.level-card-meta{white-space:normal}.detail-line strong{overflow-wrap:anywhere;min-width:0}.input,.select,.textarea{font-size:16px}.admin-editor{padding-bottom:calc(24px + env(safe-area-inset-bottom))}.editor-actions{gap:12px}.resource-grid{margin-top:16px}#optional summary{cursor:pointer;padding-block:12px}.backend-notice{padding:12px 16px;margin-bottom:16px;background:#fff6dc;border:1px solid #b08a39;border-radius:12px;font-size:13px}
@media(max-width:899px){body{padding-bottom:calc(88px + env(safe-area-inset-bottom))}.toast{bottom:calc(86px + env(safe-area-inset-bottom))}}
@media(min-width:760px){.roadmap-compact{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1100px){.roadmap-compact{grid-template-columns:repeat(3,minmax(0,1fr))}}

.full-width{grid-column:1/-1}
.level-card{display:grid;grid-template-columns:62px minmax(0,1fr);column-gap:16px;row-gap:8px;align-items:start}.level-code{grid-row:1/3;align-self:center}.level-card-meta{grid-column:2;margin:0;white-space:normal}.level-card h3 .ltr{display:block;font-size:12px;font-weight:500;color:var(--text-soft);text-align:right;margin-top:2px}

/* V7.2: keep book-related media in cohesive, scannable package sections. */
.course-asset-groups{display:grid;gap:26px}
.course-asset-section{min-width:0}
.course-asset-section+.course-asset-section{padding-top:24px;border-top:1px solid var(--line)}
.course-asset-title{margin:0;font-size:17px;line-height:1.5}
.asset-group-count{flex:none;color:var(--text-soft);font-size:12px}
.course-asset-section .section-head{align-items:center;margin-bottom:12px}

/* ═══ V7.3 Design system: calm editorial dark, optional accessible light ═══ */
:root,[data-theme="dark"]{
  color-scheme:dark;
  --bg:#131821;--surface:#1d242f;--surface-2:#262f3b;--text:#f2f3f4;
  --text-soft:#b4bfcb;--text-faint:#95a4b5;--accent:#fdba0f;--accent-strong:#ffc83d;
  --accent-soft:rgba(253,186,15,.13);--success:#80d5b0;--danger:#ff9a9e;
  --line:rgba(184,197,212,.15);
  --shadow-out:0 14px 34px rgba(0,0,0,.12);--shadow-out-sm:0 0 0 1px var(--line);
  --shadow-in:inset 0 0 0 1px var(--line);--radius:20px;--radius-sm:13px;
}
[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f5f7;--surface:#fff;--surface-2:#e9edf1;--text:#243143;
  --text-soft:#516074;--text-faint:#5a6778;--accent:#b3470a;--accent-strong:#9a3b05;
  --accent-soft:rgba(249,101,12,.11);--success:#237653;--danger:#a03a43;
  --line:rgba(40,54,72,.15);--shadow-out:0 10px 32px rgba(25,43,67,.045);
  --shadow-out-sm:0 0 0 1px var(--line);--shadow-in:inset 0 0 0 1px var(--line)
}
:focus-visible{outline:3px solid var(--accent-strong);outline-offset:3px}
html{scroll-padding-top:90px}
body{background:var(--bg);color:var(--text)}
.topbar{background:color-mix(in srgb,var(--bg) 93%,transparent);border-bottom:1px solid var(--line)}
.topbar-inner{min-height:72px}.brand-mark{border:1px solid var(--line);background:var(--accent-soft);color:var(--accent-strong);box-shadow:none;font-size:13px;font-weight:850;border-radius:12px}
.brand-title{font-size:15px;letter-spacing:-.02em}.brand-subtitle{color:var(--text-faint)}
.icon-btn,.menu-btn{border:1px solid var(--line);box-shadow:none;background:var(--surface);border-radius:12px}
.icon-btn svg,.theme-toggle svg{width:20px;height:20px}
.mobile-menu-panel{box-shadow:0 20px 48px rgba(0,0,0,.25);border:1px solid var(--line)}
.mobile-menu-panel a:hover,.mobile-menu-panel a:focus-visible{background:var(--accent-soft);box-shadow:none}
.neo-card{box-shadow:none;border:1px solid var(--line);background:var(--surface)}
main{padding-top:22px}.section{margin-top:42px}.section-head{margin-bottom:18px}.section-title{font-size:20px;letter-spacing:-.02em}
.eyebrow{letter-spacing:.035em;color:var(--accent-strong);font-size:11px}.eyebrow-dot{background:var(--accent)}
h1{letter-spacing:-.035em;font-weight:850}.hero-desc{font-size:14px;line-height:1.9;color:var(--text-soft)}
.primary-btn{background:var(--accent);color:#141820;box-shadow:none}.primary-btn:hover{filter:brightness(1.08)}
[data-theme="light"] .primary-btn{color:#fff}
.soft-btn{background:var(--surface-2);box-shadow:none;border:1px solid var(--line)}
.text-link,.text-btn{color:var(--accent-strong)}
.page-card,.level-header{padding:25px}
.home-hero{background:transparent;border:0;box-shadow:none;padding:32px 2px 18px;max-width:830px}
.home-hero h1{font-size:clamp(31px,7vw,56px);max-width:740px;line-height:1.23;margin:16px 0}
.home-hero .hero-desc{max-width:690px}.home-search{max-width:730px;margin-top:26px}
.home-search .input{background:var(--surface);border:1px solid var(--line);box-shadow:none}
.quick-links{margin-top:20px}.quick-links a{background:var(--surface-2);border:1px solid var(--line);box-shadow:none;color:var(--text-soft);font-weight:650}
.quick-links a:hover{color:var(--text);border-color:var(--accent)}
.level-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.level-card{display:flex;flex-direction:column;align-items:stretch;gap:10px;position:relative;min-height:155px;padding:17px 18px;
  text-decoration:none;border:1px solid var(--line);border-radius:18px;background:var(--surface);transition:border-color .15s,transform .15s}
.level-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.level-code{width:auto;height:auto;border:0;box-shadow:none;display:block;color:var(--text);font-size:36px;line-height:1.2;font-weight:800}
.level-card-copy{display:flex;flex-direction:column;gap:0;min-width:0}
.level-card-copy strong{font-size:13px;font-weight:750;color:var(--text-soft)}
.level-card-copy small{font-size:11px;color:var(--text-faint);line-height:1.5}
.level-card-arrow{position:absolute;left:18px;top:18px;color:var(--accent-strong);font-size:19px}
.level-card:nth-child(1),.level-card:nth-child(2){border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.level-card:nth-child(1) .level-code,.level-card:nth-child(2) .level-code{color:var(--accent-strong)}
.special-teaser{background:var(--surface);border:1px solid var(--line);padding:24px}.special-teaser h2{font-size:20px}
.course-card,.mini-course-card,.resource-card,.skill-card{transition:border-color .16s}
.course-card:hover,.mini-course-card:hover,.resource-card:hover,.skill-card:hover{border-color:color-mix(in srgb,var(--accent) 42%,var(--line))}
.course-cover,.asset-icon,.resource-icon{background:var(--accent-soft);box-shadow:none;border:1px solid var(--line)}
.input,.select,.textarea{background:var(--surface-2);box-shadow:none;border:1px solid var(--line);color:var(--text)}
.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);outline:2px solid var(--accent-soft);outline-offset:1px}
.input::placeholder,.textarea::placeholder{color:var(--text-faint);opacity:1}
.meta-pill{box-shadow:none;border:1px solid var(--line)}
.level-chip{box-shadow:none;border:1px solid var(--line)}
.level-chip.active,.admin-tab-btn.active{border:1px solid var(--accent);border-bottom:1px solid var(--accent);background:var(--accent-soft)}
.roadmap-compact a{background:var(--surface);border-radius:16px}.step-number{border-radius:10px}
.skill-card{min-height:116px;padding:16px}.skill-card h3{margin-top:10px}
.library-skills{display:flex;gap:8px;overflow-x:auto;padding:0 0 15px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.skill-filter-chip{flex:none;min-height:43px;padding:8px 15px;border:1px solid var(--line);background:var(--surface);color:var(--text-soft);border-radius:999px;font-size:12px;font-weight:700;cursor:pointer}
.skill-filter-chip.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-strong)}
/* Bottom navigation: proper tab bar with icons, labels, current-page semantics. */
.mobile-bottom-nav{left:12px;right:12px;bottom:calc(10px + env(safe-area-inset-bottom));padding:7px;gap:5px;
  border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:0 16px 40px rgba(0,0,0,.26);border-radius:23px}
.mobile-bottom-nav a{flex-direction:column;gap:2px;padding:5px 2px;min-height:57px;font-size:10px;font-weight:750;border-radius:16px;border:1px solid transparent}
.mobile-bottom-nav svg{width:21px;height:21px;flex:none}.mobile-bottom-nav a.active{background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);box-shadow:none;color:var(--accent-strong)}
.footer{margin-top:66px;padding:28px 0 18px;text-align:right;border-top:1px solid var(--line);font-size:12px}
.footer-grid{display:grid;gap:25px}.footer-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:16px}
.footer-intro p{margin:12px 0 0;max-width:390px;color:var(--text-soft);line-height:1.9}
.footer-links,.footer-social{display:grid;align-content:start;justify-items:start;gap:12px}
.footer-links a,.footer-social a{text-decoration:none;color:var(--text-soft);min-height:32px}
.footer-links a:hover,.footer-social a:hover{color:var(--accent-strong)}.footer-social strong{font-weight:750}
.footer-bottom{margin-top:28px;border-top:1px solid var(--line);padding:15px 0 2px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;color:var(--text-faint)}
.footer-signature{display:inline;margin:0 0 0 2px;font-size:16px;color:var(--accent-strong)}
/* Admin Content Studio */
.admin-hero{padding:24px}.admin-hero h1{font-size:clamp(26px,6vw,36px)}
.admin-tabs-wrap{background:var(--bg)}.admin-tabs{gap:8px}
.admin-tab-btn{background:var(--surface);border:1px solid var(--line);box-shadow:none;border-radius:13px;padding:10px 14px}
.admin-panel{min-width:0}.admin-stats{gap:10px}.stat-card{text-align:right;padding:17px}.stat-card strong{font-size:26px;color:var(--text)}.stat-card span{display:block;font-size:12px}
.health-item{box-shadow:none;border:1px solid var(--line);background:var(--surface);align-items:center}
.admin-card{padding:16px}.admin-card p{font-size:12px;line-height:1.8}
.admin-card .admin-card-copy h3{font-size:15px}.small-btn{background:var(--surface-2);border:1px solid var(--line);box-shadow:none;min-height:44px;font-size:12px}
.admin-editor-backdrop{background:rgba(2,6,12,.69)}.admin-editor{background:var(--surface);border:1px solid var(--line)}
.editor-head{background:var(--surface)}.editor-close{border:1px solid var(--line);background:var(--surface-2);box-shadow:none;color:var(--text)}
.editor-actions{background:var(--surface);border-top:1px solid var(--line)}
.sync-notice,.health-item{box-shadow:none}.backend-notice{background:var(--surface-2);border-color:var(--accent);color:var(--text)}
.admin-quick-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px;margin-bottom:22px}
.admin-quick-actions button{min-height:74px;padding:15px;border:1px solid var(--line);background:var(--surface);border-radius:15px;text-align:right;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;color:var(--text);font-weight:800;cursor:pointer}
.admin-quick-actions button span{font-size:12px;color:var(--accent-strong)}
.admin-section-heading{margin:20px 0 12px;font-size:15px}.admin-card-menu{border-top:1px solid var(--line);margin-top:12px;padding-top:10px}.admin-card-menu summary{list-style:none;cursor:pointer;font-size:12px;font-weight:750;min-height:38px;display:flex;align-items:center;color:var(--text-soft)}.admin-card-menu summary::-webkit-details-marker{display:none}
.admin-card-menu[open] summary{color:var(--accent-strong)}.admin-card-menu .admin-actions{margin-top:5px}
.admin-bulkbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 14px;background:var(--surface-2);border-radius:14px;margin:12px 0;border:1px solid var(--line)}
.admin-bulkbar label{font-size:12px}.admin-select-row{display:flex;align-items:center;gap:9px}.admin-select-row input{width:22px;height:22px;accent-color:var(--accent)}
.admin-book-assets{margin-top:12px;display:grid;gap:8px}.admin-book-assets>li{display:flex;align-items:center;justify-content:space-between;gap:9px;list-style:none;padding:10px;background:var(--surface-2);border-radius:10px;font-size:12px}.admin-book-assets button{min-height:36px}
.admin-book-assets .asset-title{overflow-wrap:anywhere;min-width:0}.admin-resource-list-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.admin-checklist{display:grid;gap:9px;padding:0;margin:14px 0;list-style:none}.admin-checklist li{padding:12px 14px;background:var(--surface-2);border-radius:12px;font-size:12px}
.admin-tool-note{font-size:12px;color:var(--text-soft);margin:10px 0;line-height:1.8}
.toast{background:var(--surface-2);color:var(--text);border:1px solid var(--line);box-shadow:0 15px 38px rgba(0,0,0,.22)}
@media(min-width:560px){.level-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.level-card{min-height:171px}.footer-grid{grid-template-columns:2fr 1fr 1fr}.admin-quick-actions{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(min-width:900px){.home-hero{padding-top:52px}.level-grid{grid-template-columns:repeat(3,1fr)}.level-card{padding:24px;min-height:180px}.level-code{font-size:43px}.admin-tabs-wrap{background:transparent}.admin-tabs{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:10px}.admin-tab-btn{background:transparent;border-color:transparent}.admin-tab-btn.active{background:var(--accent-soft)}.footer{padding-top:38px}}
@media(prefers-reduced-motion:reduce){.level-card{transition:none;transform:none!important}}
.admin-mobile-nav button{min-height:57px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:1px;border:1px solid transparent;border-radius:16px;color:var(--text-soft);font-family:inherit;font-weight:750;font-size:10px;line-height:1.4;background:none;cursor:pointer}
.admin-mobile-nav button span{font-size:22px;line-height:1.2}
.admin-mobile-nav button.active{color:var(--accent-strong);background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 25%,transparent)}
.admin-mobile-nav{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(min-width:900px){.admin-mobile-nav{display:none}}
@media(max-width:899px){.admin-tabs-wrap{display:none}.admin-page-grid{display:block}.admin-panel{margin-top:22px}.admin-page{padding-bottom:calc(110px + env(safe-area-inset-bottom))}}

/* V7.4 — educational palette: sage/blue light and deep pine/night dark */
:root,[data-theme="dark"]{--bg:#111b22;--surface:#1c2a32;--surface-2:#253640;--text:#edf6f5;--text-soft:#bbd0d3;--text-faint:#9db6bd;--accent:#8ac6b0;--accent-strong:#a4e3ce;--accent-soft:rgba(138,198,176,.13);--line:rgba(190,221,223,.17);--success:#99dcb4;--danger:#ffa5aa}
[data-theme="light"]{--bg:#f1f7f7;--surface:#ffffff;--surface-2:#e8f2f3;--text:#172d3c;--text-soft:#435f6b;--text-faint:#557783;--accent:#176f69;--accent-strong:#135b69;--accent-soft:rgba(48,148,135,.12);--line:rgba(36,96,104,.19);--success:#1a7854;--danger:#ae374c}
.primary-btn{color:#092c2e}[data-theme="light"] .primary-btn{color:#fff}
.media-tabs{display:flex;gap:9px;flex-wrap:wrap;margin:16px 0}.media-tabs button{min-height:44px;border-radius:999px;padding:8px 18px;background:var(--surface);border:1px solid var(--line);color:var(--text);font:inherit;cursor:pointer}.media-tabs button.active{background:var(--accent-soft);border-color:var(--accent);font-weight:800}.section-intro{max-width:780px}.admin-context-tools{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0 18px}.admin-context-tools select{max-width:220px}.admin-editor{max-height:calc(100dvh - 20px);overflow:auto}.footer a{color:var(--accent-strong)}
@media(max-width:559px){.page-card{padding:20px}.admin-tabs-wrap{max-width:100%}.media-tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:7px}.media-tabs button{flex:none}}

.admin-mobile-nav{grid-template-columns:repeat(5,minmax(0,1fr))}

/* v3: restrained education palette, accessible responsive book browsing */
:root{--bg:#f3f8f7;--surface:#ffffff;--surface-2:#e9f3f1;--text:#17343c;--text-soft:#48636b;--text-faint:#597780;--accent:#236f73;--accent-strong:#155d62;--accent-soft:rgba(35,111,115,.1);--line:rgba(24,86,93,.15);--shadow-out:0 4px 18px rgba(24,86,93,.045)}
html[data-theme="dark"]{--bg:#0f1d24;--surface:#192b32;--surface-2:#213840;--text:#e9f5f2;--text-soft:#b2c9cb;--text-faint:#a1bac0;--accent:#71b8ad;--accent-strong:#93ddd0;--accent-soft:rgba(113,184,173,.12);--line:rgba(170,217,210,.15);--shadow-out:0 6px 20px rgba(0,0,0,.08)}
.topbar{background:var(--surface);border-bottom:1px solid var(--line)}.brand-mark{background:var(--surface-2);color:var(--accent-strong)}.primary-btn{background:#236f73;color:#fff;box-shadow:none}html[data-theme="dark"] .primary-btn{background:#387e80;color:white}:focus-visible{outline:3px solid #2c869b;outline-offset:3px}
.gl-horizontal-grid{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(235px,74%);gap:12px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 2px 15px;overscroll-behavior-x:contain;scrollbar-width:thin}.gl-horizontal-grid>*{scroll-snap-align:start}.book-shelf{margin-top:30px}.gl-book-card{display:flex;flex-direction:column;align-items:stretch;min-width:0;gap:12px;padding:14px}.gl-book-card .mini-course-copy{flex:1}.gl-book-card .mini-course-copy h3{font-size:15px;line-height:1.6}.gl-book-card .mini-course-copy p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.gl-book-cover{width:100%;aspect-ratio:1.55/1;display:grid;place-items:center;border-radius:14px;background:var(--surface-2);overflow:hidden;color:var(--accent-strong)}.gl-book-cover svg{width:44px;height:44px;stroke:currentColor;fill:none;stroke-width:1.35}.gl-book-cover img{display:block;width:100%;height:100%;object-fit:contain}.all-books-list{margin-top:28px}.all-books-list>summary{min-height:44px;cursor:pointer;font-weight:700;padding:12px;color:var(--accent-strong)}.book-shelf .section-title{font-size:18px}.cover-editor-preview{height:105px;width:80px;object-fit:contain;border-radius:9px;background:var(--surface-2)}
@media(min-width:680px){.gl-horizontal-grid{grid-auto-columns:minmax(240px,32%)}.gl-book-card{padding:16px}.gl-book-cover{aspect-ratio:1.5/1}}
@media(min-width:1080px){.gl-horizontal-grid{grid-auto-columns:minmax(260px,25%)}.gl-book-card .mini-course-copy h3{font-size:16px}}
@media(max-width:440px){.mobile-bottom-nav:not(.admin-mobile-nav){display:flex;justify-content:space-around}.mobile-bottom-nav a{min-width:0;flex:1}.gl-book-card{min-width:0}.admin-editor{max-height:calc(100dvh - 12px)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* v3 responsive admin skill selector + book package cover */
.skill-picker{display:flex;flex-wrap:wrap;gap:8px;padding:10px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2)}.skill-check{display:flex;align-items:center;gap:5px;min-height:40px;padding:7px 10px;background:var(--surface);border-radius:12px;cursor:pointer;font-size:12px}.skill-check input{accent-color:var(--accent);width:17px;height:17px}.course-card-top .gl-book-cover{width:86px;min-width:86px;height:110px;aspect-ratio:auto}.course-card-top .gl-book-cover img{object-fit:contain}.course-card-top{gap:16px}.page-card .gl-book-cover{width:100px;max-width:35%;aspect-ratio:3/4;float:left;margin:0 16px 10px 0}

/* VNext article reading and authoring */
.article-index{padding-bottom:36px}.article-index-hero{margin-top:22px}.article-filters{display:grid;grid-template-columns:1fr;gap:12px;padding:16px;margin:20px 0}.article-filters label,.studio-filters label{display:grid;gap:7px;font-size:12px;font-weight:850}.article-grid{display:grid;grid-template-columns:1fr;gap:16px}.article-card{overflow:hidden;border-radius:20px;background:var(--surface);box-shadow:var(--shadow-out-sm);display:grid;grid-template-columns:1fr}.article-card-cover{display:block;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden}.article-card-cover img{display:block;width:100%;height:100%;object-fit:cover}.article-cover-placeholder{height:100%;display:grid;place-items:center;color:var(--accent-strong);font-weight:900}.article-card-copy{padding:17px;display:grid;gap:9px;align-content:start}.article-card-copy h2{margin:0;font-size:19px;line-height:1.5}.article-card-copy h2 a{text-decoration:none}.article-card-copy>p:not(.article-card-meta){margin:0;color:var(--text-soft);font-size:13px;line-height:1.9}.article-card-meta{margin:0;color:var(--accent-strong);font-size:11px;font-weight:850}.article-card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:8px;color:var(--text-soft);font-size:11px}.article-card-foot a{font-weight:900;text-decoration:none;color:var(--accent-strong)}.featured-article{margin:22px 0}.featured-article>.article-card{max-width:960px}.featured-article>.eyebrow{margin:0 0 10px}.article-detail{max-width:1040px;padding-bottom:40px}.article-breadcrumb{display:flex;gap:9px;align-items:center;flex-wrap:wrap;padding:20px 0;color:var(--text-soft);font-size:12px}.article-breadcrumb a{color:var(--accent-strong)}.article-header{max-width:820px;margin:0 auto;padding:12px 0 22px}.article-header h1{font-size:clamp(30px,6vw,48px);line-height:1.35;margin:12px 0}.article-excerpt{font-size:18px;line-height:1.9;color:var(--text-soft)}.article-byline{display:flex;gap:14px;flex-wrap:wrap;color:var(--text-soft);font-size:12px}.article-cover-image{display:block;width:100%;height:auto;max-height:560px;object-fit:cover;border-radius:22px;margin:14px 0 26px}.article-detail-grid{display:grid;gap:28px;align-items:start}.article-content{min-width:0;max-width:740px;font-size:18px;line-height:2.1;overflow-wrap:anywhere}.article-content[dir="auto"]{unicode-bidi:plaintext}.article-content h2{font-size:1.48em;line-height:1.5;margin:1.8em 0 .55em}.article-content h3{font-size:1.2em;line-height:1.55;margin:1.5em 0 .45em}.article-content p{margin:.85em 0}.article-content a{color:var(--accent-strong);text-decoration-thickness:1px;text-underline-offset:3px}.article-content img{max-width:100%;height:auto;border-radius:14px}.article-content figure{margin:1.5em 0}.article-content figcaption{font-size:.8em;color:var(--text-soft);text-align:center}.article-content blockquote{margin:1.4em 0;padding:12px 18px;border-inline-start:3px solid var(--accent);background:var(--surface-2);border-radius:10px}.article-content table{display:block;width:100%;overflow:auto;border-collapse:collapse;font-size:.9em}.article-content th,.article-content td{padding:9px 12px;border:1px solid var(--line)}.article-aside{display:grid;gap:12px;padding:18px;border-radius:18px;background:var(--surface-2);font-size:13px}.article-aside h2{margin:0;font-size:16px}.article-aside a{color:var(--accent-strong);font-weight:850;text-decoration:none}.article-next{margin:34px 0;padding:22px;border-radius:20px;background:var(--surface-2)}.article-next h2{margin-top:0}.article-next p{color:var(--text-soft)}
.article-studio{padding-block:24px 40px}.studio-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}.studio-heading h1{margin:5px 0}.studio-heading .hero-desc{margin:0}.studio-filters{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:14px}.studio-article-list{display:grid;gap:12px}.studio-article-row{padding:16px;display:grid;gap:12px}.studio-article-row h2{margin:3px 0;font-size:17px}.studio-article-row p{margin:4px 0;color:var(--text-soft);font-size:12px}.studio-top-actions{position:sticky;top:8px;z-index:30;display:flex;align-items:center;gap:8px;padding:10px;margin:0 0 14px;border-radius:15px;background:var(--surface);box-shadow:var(--shadow-out-sm)}.studio-top-actions #saveState{flex:1;font-size:11px;color:var(--text-soft)}.article-editor-layout{display:grid;gap:14px}.article-editor-main,.article-editor-side{display:grid;gap:14px;align-content:start}.editor-card{padding:17px}.editor-card h2{font-size:17px;margin:0 0 14px}.editor-card .field{margin:14px 0}.editor-card .field small{display:block;color:var(--text-soft);font-size:11px;margin-top:4px}.article-body-editor{min-height:340px;padding:16px;border-radius:14px;background:var(--surface-2);outline:none;line-height:1.9;font-size:16px;overflow-wrap:anywhere}.article-body-editor:empty:before{content:attr(data-placeholder);color:var(--text-soft)}.article-body-editor:focus{box-shadow:0 0 0 2px var(--accent)}.article-body-editor h2{margin:1.25em 0 .4em}.rich-toolbar{display:flex;gap:6px;overflow-x:auto;padding:7px 0;position:sticky;top:66px;z-index:10;background:var(--surface)}.rich-toolbar button{flex:none;min-height:42px;padding:7px 11px;border:0;border-radius:11px;background:var(--surface-2);color:var(--text);font-size:12px;font-weight:800}.seo-check-groups{display:grid;gap:12px}.seo-check-group h3{font-size:13px;margin:0 0 5px}.seo-check{width:100%;display:flex;gap:8px;text-align:start;padding:9px 0;border:0;background:transparent;color:var(--text);font-size:12px;line-height:1.7}.seo-check.is-ok>span:first-child{color:var(--accent-strong)}.seo-check.is-pending>span:first-child{color:var(--text-soft)}.editor-publish-actions{display:grid;gap:8px}.review-feedback{grid-column:1/-1;padding:10px;border-radius:10px;background:var(--surface-2)}.quick-action-link{min-height:58px;padding:12px;border-radius:15px;box-shadow:var(--shadow-out-sm);display:grid;text-decoration:none;color:var(--text);font-size:11px;font-weight:800}.quick-action-link span{color:var(--accent-strong);font-size:14px}.article-studio .notice[hidden]{display:none}
@media(min-width:600px){.article-filters{grid-template-columns:2fr 1fr 1fr 1fr auto;align-items:end}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.studio-filters{grid-template-columns:2fr 1fr}.studio-article-row{grid-template-columns:1fr auto;align-items:center}.editor-publish-actions{grid-template-columns:1fr 1fr}.editor-publish-actions .danger{grid-column:1/-1}}
@media(min-width:900px){.article-card{grid-template-columns:38% 1fr;align-items:stretch}.article-card-cover{height:100%;min-height:210px;aspect-ratio:auto}.featured-article>.article-card{grid-template-columns:45% 1fr}.article-detail-grid{grid-template-columns:minmax(0,1fr) 240px}.article-aside{position:sticky;top:100px}.article-editor-layout{grid-template-columns:minmax(0,1fr) 310px;align-items:start}.article-editor-side{position:sticky;top:82px;max-height:calc(100vh - 96px);overflow:auto}.article-body-editor{min-height:560px}.studio-top-actions{top:78px}}
@media(max-width:899px){.article-studio{padding-bottom:calc(100px + env(safe-area-inset-bottom))}.article-studio .studio-top-actions{bottom:calc(8px + env(safe-area-inset-bottom));top:auto}.article-body-editor{min-height:55dvh;scroll-margin-bottom:160px}.rich-toolbar{top:0}.article-detail{padding-bottom:calc(100px + env(safe-area-inset-bottom))}}
@media(max-width:430px){.article-header h1{font-size:29px}.article-excerpt{font-size:16px}.article-content{font-size:17px}.studio-heading .primary-btn{width:100%}.studio-top-actions{gap:5px;padding:7px}.studio-top-actions .primary-btn,.studio-top-actions .soft-btn{padding-inline:10px;font-size:11px}.article-byline{gap:8px}}

.mobile-bottom-nav[hidden],.admin-tabs-wrap[hidden]{display:none!important}

.revision-panel{padding:12px;border-radius:14px;background:var(--surface-2);display:grid;gap:8px}.revision-panel[hidden],.revision-panel.hidden{display:none}.revision-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px}
/* Keep destination order physically left-to-right while each label remains RTL. */
.mobile-bottom-nav:not(.admin-mobile-nav),.desktop-nav{direction:ltr}.mobile-bottom-nav:not(.admin-mobile-nav)>a,.desktop-nav>a{direction:rtl}

/* Organic editorial design system: warm paper, deep forest, restrained terracotta.
   Late overrides intentionally supersede older v7/v3 palettes without restructuring components. */
:root,html[data-theme="light"]{color-scheme:light;--bg:#f8f5ee;--surface:#fffdf8;--surface-2:#f0ece0;--text:#1c2b31;--text-soft:#4f5e64;--text-faint:#5b696f;--accent:#b3470a;--accent-strong:#9a3b05;--accent-soft:rgba(249,101,12,.11);--success:#2f7050;--danger:#b3201f;--line:rgba(9,23,31,.16);--shadow-out:0 3px 14px rgba(67,57,38,.045);--shadow-in:inset 0 0 0 1px var(--line);--shadow-out-sm:0 0 0 1px var(--line)}
html[data-theme="dark"]{color-scheme:dark;--bg:#0d1a21;--surface:#14252e;--surface-2:#1c313c;--text:#f2efe6;--text-soft:#c3cdd2;--text-faint:#a6b4bb;--accent:#fdba0f;--accent-strong:#ffc83d;--accent-soft:rgba(253,186,15,.14);--success:#8fd9b0;--danger:#ff9a94;--line:rgba(200,215,222,.18);--shadow-out:0 4px 18px rgba(0,0,0,.13);--shadow-in:inset 0 0 0 1px var(--line);--shadow-out-sm:0 0 0 1px var(--line)}
body{background:var(--bg)}
.topbar{background:color-mix(in srgb,var(--bg) 95%,transparent);border-bottom:1px solid var(--line)}
.neo-card,.article-card{background:var(--surface);border:1px solid var(--line);box-shadow:none}
.level-code,.course-cover,.gl-book-cover{background:var(--surface-2)}
.primary-btn{background:#b3470a;color:#fff;border:1px solid transparent;box-shadow:none}
html[data-theme="dark"] .primary-btn{background:#fdba0f;color:#09171f}
.primary-btn:hover{filter:brightness(1.055)}
:focus-visible{outline:3px solid var(--accent-strong);outline-offset:3px}
.article-editor-main .neo-card,.article-editor-side .neo-card{border-radius:18px}
/* Mobile-first author workspace: one task at a time, full writing width. */
.studio-mode-tabs{display:none}
.editor-help{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:8px 0;font-size:12px;color:var(--text-soft)}
.editor-help .editor-tip{color:var(--text-faint)}
.article-body-editor{background:var(--surface);border:1px solid var(--line);box-shadow:none;line-height:2;min-height:440px;caret-color:var(--accent-strong);font-size:17px}
.article-body-editor:focus{box-shadow:0 0 0 2px var(--accent-soft);border-color:var(--accent-strong)}
.rich-toolbar{gap:5px;scrollbar-width:thin;overscroll-behavior-x:contain;padding:9px 1px}
.rich-toolbar button{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;min-height:44px;min-width:44px;color:var(--text);font-size:12px}
.rich-toolbar button:focus-visible{outline:2px solid var(--accent-strong)}
.rich-toolbar button:disabled{opacity:.45}
.seo-snippet{border:1px solid var(--line);border-radius:15px;background:var(--surface-2);padding:14px;direction:ltr;text-align:left;overflow-wrap:anywhere;margin:16px 0}
.seo-snippet strong{display:block;color:var(--accent-strong);font-size:16px;font-weight:700;line-height:1.45}
.seo-snippet small{display:block;color:var(--text-soft);font-size:11px;margin-bottom:4px}
.seo-snippet p{margin:6px 0 0;color:var(--text-soft);font-size:12px;line-height:1.65}
.seo-overview{font-size:12px;color:var(--text-soft);margin:8px 0 14px}
.editor-media-dialog{border:1px solid var(--line);border-radius:19px;background:var(--surface);color:var(--text);width:min(430px,calc(100vw - 30px));max-height:min(85dvh,800px);padding:20px;box-shadow:0 20px 70px rgba(0,0,0,.25)}
.editor-media-dialog::backdrop{background:rgba(24,30,22,.66)}
.editor-media-dialog form{display:grid;gap:14px}
.editor-media-dialog h2{font-size:19px;margin:0}
.editor-media-dialog .dialog-buttons{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.studio-top-actions{border:1px solid var(--line);box-shadow:0 5px 16px rgba(25,32,22,.07);flex-wrap:wrap}
@media(max-width:899px){
 .studio-mode-tabs{position:sticky;top:0;z-index:23;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;background:var(--bg);padding:8px 0 9px;margin-bottom:12px}
 .studio-mode-tabs button{border:1px solid var(--line);background:var(--surface);border-radius:12px;min-height:45px;font:inherit;font-size:13px;font-weight:800;color:var(--text-soft);cursor:pointer}
 .studio-mode-tabs button[aria-selected="true"]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-strong)}
 .article-editor-layout{display:block}
 .article-editor-layout [data-studio-section]{display:none;margin-bottom:14px}
 .article-editor-layout [data-studio-section].is-active{display:block}
 .article-editor-main,.article-editor-side{display:contents}
 .article-studio .studio-top-actions{position:sticky;bottom:calc(8px + env(safe-area-inset-bottom));z-index:32}
 .article-studio .studio-top-actions #saveState{min-width:100%;order:9;flex:auto;text-align:center}
 .article-body-editor{min-height:50dvh;scroll-margin-bottom:185px}
 .rich-toolbar{position:sticky;top:62px;z-index:21}
 .studio-top-actions .primary-btn{margin-inline-start:auto}
}
@media(min-width:900px){.article-editor-layout [data-studio-section]{display:block}.article-editor-main,.article-editor-side{display:grid}}
@media(max-width:420px){.editor-help .editor-tip{display:none}.editor-card{padding:14px}.studio-top-actions{gap:6px}.studio-top-actions .primary-btn,.studio-top-actions .soft-btn{min-height:44px;font-size:12px}}

/* A single earthy highlight adds warmth without competing with learning content. */
.eyebrow-dot{background:#b57751}
html[data-theme="dark"] .eyebrow-dot{background:#e0ab79}

/* Article Studio v3.2: accessible phone-sized authoring tools. */
[hidden]{display:none!important}
.editor-media-dialog .studio-link-picker{display:grid;gap:10px}
.link-mode-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.link-mode-options button,.link-search-option{font:inherit;cursor:pointer;color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;min-height:44px;padding:9px;text-align:start}
.link-mode-options button[aria-pressed="true"],.link-search-option[aria-selected="true"]{border-color:var(--accent);background:var(--accent-soft)}
.link-search-results{max-height:180px;overflow:auto;display:grid;gap:5px;overscroll-behavior:contain}
.link-search-option{display:flex;justify-content:space-between;align-items:center;gap:10px;width:100%}
.link-search-option strong{font-size:13px}.link-search-option small{color:var(--text-soft);font-size:11px;white-space:nowrap}
.article-body-editor figure{margin:18px 0;max-width:100%}.article-body-editor figure img{display:block;max-width:100%;height:auto;border-radius:10px;cursor:pointer}
.article-body-editor figcaption{text-align:center;font-size:13px;color:var(--text-soft);padding-top:7px}
.article-body-editor table,.article-content table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:18px 0;scrollbar-width:thin}
.article-body-editor th,.article-body-editor td,.article-content th,.article-content td{min-width:94px;border:1px solid var(--line);padding:9px 12px;text-align:start;vertical-align:top}
.article-body-editor th,.article-content th{background:var(--surface-2);font-weight:700}
.editor-media-dialog .dialog-buttons .soft-btn:first-child{margin-inline-end:auto}
@media(max-width:899px){.editor-media-dialog{max-height:calc(100dvh - 24px);overflow-y:auto}.rich-toolbar{background:var(--bg);scroll-padding-inline:12px}}

/* V7.5 IA: four learner destinations; Admin retains its five workspace tools. */
.mobile-bottom-nav:not(.admin-mobile-nav){grid-template-columns:repeat(4,minmax(0,1fr))}

.extras-articles-panel{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px;flex-wrap:wrap}
.extras-articles-panel h2{margin:4px 0 8px}.extras-articles-panel p{margin:0;color:var(--text-soft)}
.extras-articles-panel .soft-btn{white-space:nowrap}
/* Keep a selectable replacement target when a remote draft image is unavailable. */
.article-body-editor figure img{min-height:88px;background:var(--surface-2);border:1px solid var(--line)}
/* Prevent long mobile-friendly toolbars from expanding the desktop grid track. */
.article-editor-layout,.article-editor-main,.article-editor-side,.editor-card{min-width:0}
.rich-toolbar{max-width:100%;width:100%}

/* ═══ Lexipfad brand ═══
   Palette (from the logo): ink #09171f · red #c7171a · orange #f9650c · amber #fdba0f · cream #f8f5ee.
   --accent tokens above are the contrast-checked UI variants of orange/amber. */
:root{--brand-ink:#09171f;--brand-red:#c7171a;--brand-orange:#f9650c;--brand-amber:#fdba0f;--brand-cream:#f8f5ee}
/* The logo's navy parts vanish on dark UI, so the symbol always sits on a cream tile. */
.brand-mark{display:grid;place-items:center;width:42px;height:42px;padding:0;border-radius:12px;background:var(--brand-cream);border:1px solid var(--line);box-shadow:none}
.brand-mark img{display:block;width:auto;height:26px}
.brand-title{display:flex;align-items:center;line-height:0}
.brand-word{display:block;width:auto;height:24px}
.brand-word-dark{display:none}
:root:not([data-theme="light"]) .brand-word-light{display:none}
:root:not([data-theme="light"]) .brand-word-dark{display:block}
.footer-brand{gap:12px}

/* ═══ Roadmap ═══ */
.rm-progress{display:flex;align-items:center;gap:12px;margin:0 0 20px;flex-wrap:wrap}
.rm-progress progress{flex:1 1 220px;height:10px;border-radius:99px;border:0;overflow:hidden;background:var(--surface-2);accent-color:var(--accent)}
.rm-progress progress::-webkit-progress-bar{background:var(--surface-2)}
.rm-progress progress::-webkit-progress-value{background:linear-gradient(90deg,var(--brand-red),var(--brand-orange),var(--brand-amber))}
.rm-progress progress::-moz-progress-bar{background:linear-gradient(90deg,var(--brand-red),var(--brand-orange),var(--brand-amber))}
.rm-progress span{font-size:12px;color:var(--text-soft)}
.rm-path{list-style:none;margin:0;padding:0;display:grid;gap:0}
.rm-step{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;padding-bottom:16px}
.rm-step::before{content:"";position:absolute;inset-block:40px 0;inset-inline-start:19px;width:2px;background:var(--line)}
.rm-step:last-child::before{display:none}
.rm-step.is-done::before{background:var(--brand-orange)}
.rm-dot{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:var(--surface);border:2px solid var(--line);color:var(--text-soft)}
.rm-step.is-next .rm-dot{border-color:var(--accent);color:var(--accent-strong);background:var(--accent-soft)}
.rm-step.is-done .rm-dot{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.rm-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;display:grid;gap:8px;min-width:0}
.rm-step.is-next .rm-card{border-color:var(--accent)}
.rm-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rm-head small{color:var(--text-faint);font-size:11px}
.rm-link{font-size:13px;color:var(--accent-strong);text-decoration:none;overflow-wrap:anywhere}
.rm-link:hover{text-decoration:underline}
.rm-check{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:12px;color:var(--text-soft);cursor:pointer}
.rm-check input{width:22px;height:22px;accent-color:var(--accent)}