.edubros-notes-reader{width:100%;max-width:1500px;margin:20px auto;border:1px solid #dce3ef;border-radius:14px;overflow:hidden;background:#fff;color:#13213d;box-sizing:border-box;font:14px/1.5 system-ui,sans-serif}
.edubros-notes-reader>header{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 16px;background:#101d3e;color:white}
.edubros-notes-reader>header strong{margin-right:auto}.edubros-notes-reader [role=status]{font-size:12px;max-width:420px}
.edubros-notes-reader button{font:inherit;border:1px solid #b8c8df;background:#fff;color:#14264b;border-radius:7px;padding:7px 12px;cursor:pointer;min-height:36px}
.edubros-notes-reader button:focus-visible{outline:3px solid #00bd99;outline-offset:2px}
.edubros-notes-reader iframe{display:block;width:100%;height:80vh;height:80dvh;min-height:420px;border:0;background:white}
.edubros-notes-reader .edubros-notes-help{font-size:12px;padding:10px 16px;margin:0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.edubros-notes-reader.is-expanded{position:fixed;inset:0;max-width:none;margin:0;border:0;border-radius:0;z-index:2147483000;height:100vh;height:100dvh;display:flex;flex-direction:column}
.edubros-notes-reader.is-expanded iframe{flex:1;min-height:0}.edubros-notes-reader.is-concealed iframe{visibility:hidden}
html.en-reader-open{overflow:hidden!important}.edubros-notes-reader{position:relative}.edubros-notes-reader .en-privacy-curtain{position:absolute;inset:100px 0 45px;background:#f2f7f8;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:14px;text-align:center;padding:20px;z-index:4}.edubros-notes-reader .en-privacy-curtain[hidden]{display:none}.en-privacy-curtain strong{font-size:24px}.en-privacy-curtain p{margin:0;color:#64798a}.edubros-notes-reader .edubros-notes-help{font-size:11px;padding:5px 12px}.edubros-notes-reader .edubros-notes-help button{font-size:11px;padding:3px 8px;min-height:28px}.edubros-notes-reader>header{background:#112a40}
@media(max-width:600px){.edubros-notes-reader{margin:8px auto}.edubros-notes-reader>header{padding:10px;gap:8px}.edubros-notes-reader>header strong{width:100%}.edubros-notes-reader [role=status]{flex:1;min-width:100px}.edubros-notes-reader button{font-size:12px;padding:7px 9px}.edubros-notes-reader iframe{height:78dvh}.edubros-notes-reader .edubros-notes-help{padding:8px 10px}}
@media print{.edubros-notes-reader[data-protect="1"]{display:none!important}}
.edubros-notes-reader:fullscreen [data-expand],.edubros-notes-reader:-webkit-full-screen [data-expand]{display:none}
.edubros-notes-reader:fullscreen,.edubros-notes-reader:-webkit-full-screen{width:100vw;height:100dvh;max-width:none;margin:0;border:0;border-radius:0;display:flex;flex-direction:column;background:#fff}.edubros-notes-reader:fullscreen iframe,.edubros-notes-reader:-webkit-full-screen iframe{flex:1;min-height:0;height:0}.edubros-notes-reader[data-theme=dark]{background:#0e141d;color:#e3eaf2;border-color:#344454}.edubros-notes-reader[data-theme=dark] button{background:#1a2a3c;color:#e3eaf2;border-color:#526b85}.edubros-notes-reader[data-theme=dark] iframe{background:#0e141d}.edubros-notes-reader[data-theme=dark] .en-privacy-curtain{background:#151d28;color:#e3eaf2}.edubros-notes-reader[data-theme=dark] .en-privacy-curtain p{color:#b1bdcd}

/* v6.6 protected-content security UI */
.edubros-notes-reader .en-privacy-curtain{inset:0;background:rgba(247,249,252,.985);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:24px;z-index:30}
.edubros-notes-reader .en-privacy-card{width:min(560px,100%);box-sizing:border-box;background:#fff;border:1px solid #dfe7f1;border-radius:22px;padding:32px;box-shadow:0 24px 70px rgba(15,35,55,.14);text-align:left}
.edubros-notes-reader .en-privacy-kicker{display:inline-block;margin-bottom:10px;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#486278}
.edubros-notes-reader .en-privacy-card strong{display:block;font-size:clamp(22px,3vw,30px);line-height:1.15;color:#112a40;margin:0 0 12px}
.edubros-notes-reader .en-privacy-card p{font-size:14px;line-height:1.7;color:#536879;margin:0 0 16px}
.edubros-notes-reader .en-security-record{padding:11px 13px;border-radius:10px;background:#f7f8fb;border:1px solid #e2e7ee;color:#26394b!important;font-weight:700}
.edubros-notes-reader .en-privacy-card button{display:inline-flex;align-items:center;justify-content:center;border:0;background:#112a40;color:#fff;font-weight:800;padding:10px 18px;min-height:42px;border-radius:10px;box-shadow:0 8px 20px rgba(17,42,64,.15)}
.edubros-notes-reader .en-privacy-card button:hover{filter:brightness(1.08)}
.edubros-notes-reader .en-forensic-watermark{position:absolute;inset:54px 0 38px;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-rows:minmax(120px,1fr);align-items:center;justify-items:center;overflow:hidden;pointer-events:none;user-select:none;opacity:1}
.edubros-notes-reader .en-forensic-watermark span{max-width:92%;font-size:clamp(10px,1vw,13px);font-weight:700;letter-spacing:.02em;white-space:nowrap;color:#243a4e;opacity:var(--en-wm-opacity,.12);transform:rotate(-24deg)}
.edubros-notes-reader.is-concealed .en-forensic-watermark{visibility:hidden}
.edubros-notes-reader[data-theme=dark] .en-privacy-curtain{background:rgba(12,19,28,.985)}
.edubros-notes-reader[data-theme=dark] .en-privacy-card{background:#15202b;border-color:#304456;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.edubros-notes-reader[data-theme=dark] .en-privacy-card strong{color:#f0f5fa}
.edubros-notes-reader[data-theme=dark] .en-privacy-card p{color:#bdcad6}
.edubros-notes-reader[data-theme=dark] .en-security-record{background:#101923;border-color:#314253;color:#dfe9f2!important}
.edubros-notes-reader[data-theme=dark] .en-forensic-watermark span{color:#d4dee7}
@media(max-width:700px){.edubros-notes-reader .en-privacy-curtain{padding:14px}.edubros-notes-reader .en-privacy-card{padding:24px 20px;border-radius:18px}.edubros-notes-reader .en-forensic-watermark{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(110px,1fr)}.edubros-notes-reader .en-forensic-watermark span{font-size:9px}}

/* v7.0 staged Notes startup: render the chapter before attaching the heavy toolkit. */
.edubros-notes-reader .en-reader-stage{position:relative;height:80vh;height:80dvh;min-height:420px;background:#fff;overflow:hidden}
.edubros-notes-reader .en-reader-stage iframe{height:100%;min-height:100%}
.edubros-notes-reader.is-expanded .en-reader-stage,.edubros-notes-reader:fullscreen .en-reader-stage,.edubros-notes-reader:-webkit-full-screen .en-reader-stage{flex:1;min-height:0;height:auto}
.edubros-notes-reader.is-expanded .en-reader-stage iframe,.edubros-notes-reader:fullscreen .en-reader-stage iframe,.edubros-notes-reader:-webkit-full-screen .en-reader-stage iframe{height:100%;min-height:0}
.edubros-notes-reader .en-reader-loading{position:absolute;inset:0;z-index:18;display:flex;align-items:center;justify-content:center;gap:14px;padding:24px;background:rgba(248,251,252,.975);color:#244156;text-align:left;transition:opacity .18s ease,visibility .18s ease}
.edubros-notes-reader .en-reader-loading[hidden]{display:none!important}
.edubros-notes-reader .en-reader-loading strong{display:block;font-size:15px;line-height:1.25;color:#112a40;margin-bottom:4px}
.edubros-notes-reader .en-reader-loading small{display:block;max-width:440px;font-size:12px;line-height:1.55;color:#64798a}
.edubros-notes-reader .en-reader-spinner{width:24px;height:24px;border:3px solid #d7e5e9;border-top-color:#0d7d86;border-radius:50%;animation:en-reader-spin .75s linear infinite;flex:0 0 auto}
.edubros-notes-reader.is-loading iframe{pointer-events:none}
.edubros-notes-reader.is-load-failed .en-reader-spinner{animation:none;border-color:#d98b8b;border-top-color:#b83b5e}
.edubros-notes-reader[data-theme=dark] .en-reader-stage{background:#0e141d}
.edubros-notes-reader[data-theme=dark] .en-reader-loading{background:rgba(14,20,29,.98);color:#dce7ef}
.edubros-notes-reader[data-theme=dark] .en-reader-loading strong{color:#f1f6fa}
.edubros-notes-reader[data-theme=dark] .en-reader-loading small{color:#aebdcc}
@keyframes en-reader-spin{to{transform:rotate(360deg)}}
@media(max-width:600px){.edubros-notes-reader .en-reader-stage{height:78dvh}.edubros-notes-reader .en-reader-loading{padding:18px;align-items:flex-start;justify-content:flex-start;padding-top:32px}}
@media(prefers-reduced-motion:reduce){.edubros-notes-reader .en-reader-spinner{animation-duration:1.5s}}

/* v7.4.2 learner-facing Interactive Notes reset */
.edubros-notes-reader [data-reset-notes]{border-color:#d9a7a7;color:#8f2f2f;background:#fffafa}
.edubros-notes-reader [data-reset-notes]:hover{background:#fff1f1;border-color:#c77d7d}
.edubros-notes-reader .en-notes-reset-dialog{position:absolute;inset:0;z-index:42;display:flex;align-items:center;justify-content:center;padding:20px}
.edubros-notes-reader .en-notes-reset-dialog[hidden]{display:none!important}
.edubros-notes-reader .en-notes-reset-backdrop{position:absolute;inset:0;background:rgba(9,22,38,.62);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}
.edubros-notes-reader .en-notes-reset-card{position:relative;z-index:1;width:min(560px,100%);box-sizing:border-box;padding:24px;border:1px solid #dce4ee;border-radius:18px;background:#fff;color:#24364d;box-shadow:0 24px 70px rgba(12,30,50,.24)}
.edubros-notes-reader .en-notes-reset-kicker{display:block;margin-bottom:6px;color:#66788d;font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.edubros-notes-reader .en-notes-reset-card h3{margin:0 38px 7px 0;color:#112a40;font-size:22px;line-height:1.2}
.edubros-notes-reader .en-notes-reset-card>p{margin:0 0 16px;color:#617487;font-size:13px;line-height:1.6}
.edubros-notes-reader .en-notes-reset-x{position:absolute;right:16px;top:14px;width:34px;min-height:34px!important;padding:0!important;border-radius:50%!important;font-size:22px!important;line-height:1!important}
.edubros-notes-reader .en-notes-reset-option{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;margin:9px 0;padding:12px;border:1px solid #dbe4ef;border-radius:12px;background:#f8fafc;cursor:pointer}
.edubros-notes-reader .en-notes-reset-option:has(input:checked){border-color:#7397e8;background:#f2f6ff;box-shadow:0 0 0 2px rgba(73,116,220,.08)}
.edubros-notes-reader .en-notes-reset-option input{margin-top:3px}
.edubros-notes-reader .en-notes-reset-option strong{display:block;margin-bottom:2px;color:#1f3654;font-size:13px}
.edubros-notes-reader .en-notes-reset-option small{display:block;color:#6c7f92;font-size:11.5px;line-height:1.5}
.edubros-notes-reader .en-notes-reset-warning{margin-top:14px!important;padding:10px 12px;border:1px solid #f0d8a5;border-radius:10px;background:#fff9e9;color:#8a5b12!important}
.edubros-notes-reader .en-notes-reset-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:18px}
.edubros-notes-reader .en-notes-reset-confirm{border-color:#b33d3d!important;background:#b33d3d!important;color:#fff!important;font-weight:800!important}
.edubros-notes-reader .en-notes-reset-confirm:hover{background:#982f2f!important}
.edubros-notes-reader .en-notes-reset-confirm:disabled{opacity:.55;cursor:wait}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-card{background:#15202b;color:#dce6ef;border-color:#314456}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-card h3{color:#f0f5fa}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-card>p{color:#b7c4d1}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-option{background:#101923;border-color:#314456}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-option:has(input:checked){background:#172643;border-color:#6689d4}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-option strong{color:#e4edf6}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-option small{color:#aab8c7}
.edubros-notes-reader[data-theme=dark] .en-notes-reset-warning{background:#33280f;color:#f2ce83!important;border-color:#6b5722}
@media(max-width:600px){.edubros-notes-reader .en-notes-reset-dialog{padding:12px}.edubros-notes-reader .en-notes-reset-card{padding:20px 16px;border-radius:15px}.edubros-notes-reader .en-notes-reset-actions{flex-direction:column-reverse}.edubros-notes-reader .en-notes-reset-actions button{width:100%}}