/* Integration support only: original Night 3 controls the visual composition. */
:root { --surface:var(--card);--surface-soft:var(--soft);--canvas:var(--bg);--body:var(--muted);--accent:var(--primary);--accent-soft:var(--primary-soft);--accent-strong:var(--primary-deep);--on-accent:var(--on-primary);--cream:var(--clay-soft);--sage-soft:var(--primary-soft);--sage-ink:var(--sage);--danger-soft:var(--clay-soft);--lavender:var(--lav);--lavender-soft:var(--lav-soft);--font-ui:var(--font);--font-en:var(--en);--font-ar:var(--font); }
.app-main,#root {min-width:0}
.icon {fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;flex:none}
body.motion-off .es-pulse path,body.motion-reduced .es-pulse path {stroke-dashoffset:0}
#main-content:focus {outline:none}
[hidden] {display:none!important}
[hidden],[inert] {pointer-events:none}
.skip-link {position:fixed;top:-100px;right:20px;z-index:200;background:var(--primary);color:var(--on-primary);padding:10px}
.skip-link:focus {top:10px}
.icon-button,.modal-close {display:inline-grid;place-items:center;width:44px;height:44px;background:transparent;color:var(--muted);border:0;border-radius:12px}
.page-heading,.card-header {display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}
.page-heading {margin-top:12px}
.page-heading h1 {font-size:29px}
.page-heading p {color:var(--muted);font-size:13.5px}
.heading-actions {display:flex;gap:8px;flex-wrap:wrap}
.btn.dark {background:var(--primary);color:var(--on-primary)}
.btn.small {min-height:40px;padding:7px 12px}
.notice .icon {flex:none}
.form-field input,.form-field select,.form-field textarea {width:100%}
.form-field textarea {min-height:120px}
.notice.success {color:var(--primary-deep)}
body.motion-off *,body.motion-off *::before,body.motion-off *::after {animation:none!important;transition:none!important;scroll-behavior:auto!important}
body.motion-reduced *,body.motion-reduced *::before,body.motion-reduced *::after {animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}
.radial-gate:focus-visible {outline:none}
.radial-gate:focus-visible .gate-marker {stroke:var(--primary);stroke-width:4}
.form-field { min-width: 0; margin-block-end: 16px; }
.form-field label { display: block; font-weight: 500; margin-block-end: 7px; font-size: 14px; }
.form-field small { display: block; color: var(--muted); font-size: 12px; margin-block-start: 6px; }
.form-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-block-start: 20px; }
.two-col { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.three-col { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.stack { display: grid; gap: 14px; }
.notice { display: flex; align-items: flex-start; gap: 10px; padding: 15px; border-radius: 14px; background: var(--surface-soft); color: var(--body); font-size: 13px; }
.notice .icon { margin-block-start: 3px; }
.notice.warm { background: var(--cream); color: var(--ink); }
.notice.success { background: var(--sage-soft); color: var(--sage-ink); }
.notice.error { background: var(--danger-soft); color: var(--danger); }
.symbol { display: inline-grid; place-items: center; flex: none; width: 48px; height: 48px; border-radius: 15px; background: var(--accent-soft); color: var(--accent); }
.symbol.green { background: var(--sage-soft); color: var(--sage); }
.symbol.blue { background: var(--blue-soft); color: var(--blue); }
.symbol.purple { background: var(--lavender-soft); color: var(--lavender); }
.empty-state { display: grid; justify-items: center; align-content: center; gap: 12px; min-height: 250px; padding: 28px; border: 1px dashed var(--line); border-radius: 20px; background: var(--paper); text-align: center; }
.empty-state h2 { font-size: 23px; font-weight: 500; }
.empty-state p { max-width: 460px; color: var(--muted); font-size: 14px; }
.list-grid { display: grid; gap: 12px; }
.lesson-list-item,.card-list-item { display: flex; align-items: center; gap: 18px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.lesson-list-item:hover,.card-list-item:hover { border-color: var(--accent); }
.list-thumb { display: grid; place-items: center; flex: none; width: 74px; height: 74px; border: 1px solid var(--line); border-radius: 16px; background: var(--accent-soft); color: var(--accent); }
.list-copy { min-width: 0; flex: 1; }
.list-copy h3 { font: 500 19px/1.6 var(--font-en); }
.list-copy p { font-size: 12px; color: var(--muted); margin-block-start: 6px; }
.card-term { direction: ltr; unicode-bidi: isolate; font: 500 24px/1.5 var(--font-en); }
.card-quote { direction: ltr; unicode-bidi: isolate; text-align: start; font: 400 17px/1.9 var(--font-en); }
.answer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-block-start: 18px; }
.answer { min-height: 50px; border: 1px solid var(--line); border-radius: 13px; padding: 12px; background: var(--paper); text-align: start; }
.answer.selected { background: var(--accent-soft); border-color: var(--accent); }
.answer.correct { background: var(--sage-soft); border-color: var(--sage); }
.answer.wrong { background: var(--danger-soft); border-color: var(--danger); }
.review-card { max-width: 760px; margin: 0 auto; padding-block: 45px; text-align: center; }
.review-card .term { font: 400 clamp(32px,5vw,52px)/1.7 var(--font-en); direction: ltr; margin-block: 30px; }
.review-card .meaning { font-size: 22px; margin-block: 15px; }
.review-card .card-quote { text-align: center; }
.rating-row { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; margin-block-start: 30px; }
.rating-row button { padding: 14px 8px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.rating-row button:hover { background: var(--accent-soft); border-color: var(--accent); }
.rating-row small { color: var(--muted); }
.import-preview { align-self: start; }
.preview-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-block: 15px; }
.preview-meta span { padding: 7px 12px; border-radius: 10px; background: var(--surface-soft); color: var(--muted); font-size: 12px; }
.preview-title { padding: 17px; border-radius: 14px; background: var(--accent-soft); }
.preview-title h3 { margin-block: 10px 5px; direction: ltr; font: 500 22px/1.7 var(--font-en); }
.preview-title p { color: var(--muted); font-size: 12px; }
.preview-segments { padding: 0; margin-block: 16px; list-style: none; max-height: 400px; overflow: auto; }
.preview-segments li { display: grid; grid-template-columns: 50px minmax(0,1fr); gap: 10px; padding: 12px 5px; border-block-end: 1px solid var(--line); }
.preview-segments .en { overflow-wrap: anywhere; }
.chart-pair { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.chart-svg { display: block; width: 100%; height: 240px; overflow: visible; }
.chart-grid-line { stroke: var(--line); stroke-width: 1; }
.chart-axis { fill: var(--muted); font: 9px var(--font-ui); }
.activity-area { fill: var(--accent); opacity: .1; }
.activity-line { stroke: var(--accent); fill: none; stroke-width: 2; }
.activity-dot { fill: var(--surface); stroke: var(--accent); stroke-width: 2; }
.bar { fill: var(--accent); }
.bar.sage { fill: var(--sage); }
.bar.blue { fill: var(--blue); }
.bar.lavender { fill: var(--lavender); }
.bar-label { fill: var(--ink); text-anchor: middle; font: 11px var(--font-ui); }
.skill-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.skill-item { display: flex; align-items: center; gap: 10px; background: none; }
.ring { position: relative; display: grid; place-items: center; flex: none; width: 75px; height: 75px; direction: ltr; }
.ring svg { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-track,.ring-fill { fill: none; stroke-width: 5; }
.ring-track { stroke: var(--line); }
.ring-fill { stroke: var(--accent); stroke-dasharray: 188; stroke-dashoffset: calc(188 - 188 * var(--pct) / 100); stroke-linecap: round; }
.ring.sage .ring-fill { stroke: var(--sage); }
.ring.blue .ring-fill { stroke: var(--blue); }
.ring.lavender .ring-fill { stroke: var(--lavender); }
.ring-value { font: 500 20px var(--font-ui); }
.skill-copy small,.skills-foot { display: block; color: var(--muted); font-size: 12px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th,td { padding: 12px; border-block-end: 1px solid var(--line); text-align: start; }
th { color: var(--muted); font-weight: 500; }
.status-dot { color: var(--sage); }
.overlay-open { overflow: hidden; }
.drawer-overlay,.modal-backdrop { position: fixed; inset: 0; z-index: 90; }
.drawer-backdrop { position: absolute; inset: 0; width: 100%; background: #02090dbb; }
.sidebar { position: absolute; inset-inline-start: 0; inset-block: 0; display: flex; flex-direction: column; width: min(340px,90vw); padding: 24px; background: var(--paper); border-inline-end: 1px solid var(--line); overflow: auto; }
.sidebar .modal-header h2 { font-size: 25px; }
.nav-list { display: grid; gap: 5px; }
.nav-item { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 12px; border-radius: 12px; background: none; text-align: start; color: var(--body); }
.nav-item.active,.nav-item:hover { color: var(--accent-strong); background: var(--accent-soft); }
.counter { margin-inline-start: auto; color: var(--accent); }
.sidebar-footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; margin-block-start: auto; padding-block-start: 25px; color: var(--muted); font-size: 13px; }
.modal-backdrop { display: grid; place-items: center; padding: 22px; background: #02090dcc; }
.modal { width: min(640px,100%); max-height: 90dvh; overflow: auto; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); }
.modal-header { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-block-end: 20px; }
.modal-header h2 { font-size: 24px; font-weight: 500; }
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 25px; background: radial-gradient(ellipse at 15% 15%,var(--accent-soft),transparent 60%); }
.auth-card { width: min(470px,100%); padding: 36px; border: 1px solid var(--line); border-radius: 26px; background: var(--paper); }
.auth-brand { display: flex; gap: 14px; align-items: center; }
.auth-brand h1 { font-size: 20px; font-weight: 500; }
.auth-brand small { font-size: 10px; letter-spacing: 2px; color: var(--muted); }
.auth-heading { margin-block-start: 25px; }
.auth-heading h2 { font-size: 28px; font-weight: 500; }
.auth-heading p { margin-block-start: 10px; font-size: 14px; color: var(--muted); }
.dev-credentials { margin-block-start: 22px; font-size: 11px; color: var(--muted); overflow-wrap: anywhere; }
.dev-credentials code { direction: ltr; unicode-bidi: isolate; display: inline-block; }
#toast-region { position: fixed; inset-inline-start: 24px; inset-block-end: 24px; z-index: 120; display: grid; gap: 10px; width: min(380px,calc(100vw - 48px)); }
.toast { padding: 15px; border: 1px solid var(--accent); border-radius: 14px; background: var(--paper); color: var(--ink); box-shadow: 0 10px 40px #0003; font-size: 14px; }
.toast.error { border-color: var(--danger); color: var(--danger); }

/* Existing server forms and overlays retain their contracts. */
@media(max-width:760px) {
 .masthead {height:auto;min-height:72px;padding:10px 12px;gap:8px}
 .masthead .brand {min-width:0;gap:5px}
 html[data-pulse-theme] .masthead .brand-name {font-size:14px;white-space:nowrap}
 html[data-pulse-theme] .masthead .brand small {font-size:8px;letter-spacing:.03em;white-space:nowrap}
 .masthead .pulse-logo {width:30px;flex:none;transform:scale(.8);transform-origin:center}
 .masthead .header-actions {gap:3px}
 .masthead .avatar {display:none}
 .two-col,.three-col,.chart-pair {grid-template-columns:1fr}
 .page-heading {flex-wrap:wrap}
 .rating-row {grid-template-columns:repeat(2,1fr)}
 .lesson-list-item,.card-list-item {flex-wrap:wrap}
 .modal-backdrop {padding:12px}
 .modal {padding:20px}
 .auth-shell {padding:15px;min-height:calc(100dvh - 30px)}
 .auth-card {padding:25px}
 #toast-region {bottom:100px;right:15px;width:calc(100vw - 30px)}
}
@media(max-width:380px) {
 html[data-pulse-theme] .masthead .brand small {display:none}
}