:root{--bg:#0b1220;--panel:#111b2e;--panel2:#0e1728;--line:#1e2c45;--text:#f4f8fc;--body:#dbe7f2;--muted:#8ba0b6;--cyan:#2cbdee;--blue:#2f66c0;--green:#37bf7a;--amber:#e7b33c;--purple:#aa72df;--danger:#ef6d5c;--shadow:0 24px 70px rgba(0,0,0,.35);--safe-t:env(safe-area-inset-top,0px);--safe-b:env(safe-area-inset-bottom,0px)}
[data-theme=default]{--bg:#0a0e15;--panel:#101623;--panel2:#0c111b;--line:#1b2436;--cyan:#7f93b3;--blue:#4c5b78}
[data-theme=dark]{--bg:#060708;--panel:#101112;--panel2:#0c0d0e;--line:#27292c;--cyan:#c7cdd8;--blue:#8f97a6}
[data-theme=blue]{--bg:#081326;--panel:#0d1c38;--panel2:#0a1730;--line:#1c3358;--cyan:#cfe0f7;--blue:#2f5fa8}
[data-theme=pink]{--bg:#170a13;--panel:#251020;--panel2:#1d0d1a;--line:#3a1830;--cyan:#ff7ac6;--blue:#c8437f}
[data-theme=light]{--bg:#f3f5fa;--panel:#fff;--panel2:#eef1f7;--line:#dce3ed;--text:#0f1a2b;--body:#26364d;--muted:#63738a;--cyan:#0aa9e0;--blue:#2f56c0;--green:#1fa964;--amber:#b77908}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,a{font:inherit}.defs{position:absolute;width:0;height:0;overflow:hidden}.topbar{position:sticky;z-index:20;top:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:calc(10px + var(--safe-t)) max(18px,calc((100vw - 1120px)/2)) 10px;background:color-mix(in srgb,var(--panel) 94%,transparent);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand-button{display:flex;align-items:center;gap:11px;padding:0;border:0;background:none;color:var(--text);text-align:left;cursor:pointer}.brand-button strong,.brand-button small{display:block}.brand-button strong{font-size:17px}.brand-button small{margin-top:2px;color:var(--muted);font-size:10px}.brand-mark{display:grid;width:44px;height:44px;place-items:center;border-radius:13px;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#06111c;font-weight:900;letter-spacing:-.05em}.header-actions{display:flex;gap:8px}.utility,.drawer-close,.dialog-close{display:grid;width:44px;height:44px;place-items:center;border:1px solid var(--line);border-radius:13px;background:var(--panel);color:var(--text);cursor:pointer}.utility svg,.drawer-close svg,.dialog-close svg,.drawer-row>svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.popover-wrap{position:relative}.language-popover{position:absolute;top:52px;right:0;width:190px;padding:7px;background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.language-popover button,.drawer-languages button{display:flex;width:100%;justify-content:space-between;padding:10px;border:0;border-radius:9px;background:none;color:var(--text);cursor:pointer}.language-popover button[aria-pressed=true],.drawer-languages button[aria-pressed=true]{background:color-mix(in srgb,var(--cyan) 15%,transparent)}
main{width:min(1120px,100%);min-height:calc(100vh - 66px);margin:auto;padding:26px 18px calc(48px + var(--safe-b))}.loading-card,.empty{padding:60px 24px;text-align:center}.loading-card p,.empty p{margin:8px auto 0;color:var(--muted)}.spinner{display:block;width:32px;height:32px;margin:0 auto 18px;border:3px solid var(--line);border-top-color:var(--cyan);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.eyebrow{margin:0 0 6px;color:var(--cyan);font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.hero{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:end;margin-bottom:24px}.hero h1{margin:0;font-size:clamp(30px,5vw,54px);line-height:.95}.hero p:not(.eyebrow){max-width:680px;margin:12px 0 0;color:var(--body);line-height:1.6}.source-state{padding:10px 12px;border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:11px;text-align:right}.source-state strong{display:block;color:var(--green);font-size:12px}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}.course-card{display:flex;min-height:250px;flex-direction:column;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.course-card .number{display:grid;width:38px;height:38px;place-items:center;border-radius:11px;background:color-mix(in srgb,var(--cyan) 14%,transparent);color:var(--cyan);font-weight:900}.course-card h2{margin:18px 0 8px;font-size:22px}.course-card p{margin:0;color:var(--body);font-size:13px;line-height:1.55}.course-meta{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0}.tag{display:inline-flex;padding:4px 8px;border-radius:99px;background:var(--panel2);color:var(--muted);font-size:10px;font-weight:750}.tag.hands{background:color-mix(in srgb,var(--green) 16%,transparent);color:var(--green)}.tag.assignment{background:color-mix(in srgb,var(--amber) 16%,transparent);color:var(--amber)}.tag.reflection{background:color-mix(in srgb,var(--purple) 16%,transparent);color:var(--purple)}.progress{height:6px;margin-top:auto;overflow:hidden;border-radius:9px;background:var(--panel2)}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue))}.progress-copy{display:flex;justify-content:space-between;margin-top:8px;color:var(--muted);font-size:10px}.course-open,.primary-action{margin-top:14px;padding:11px 14px;border:0;border-radius:11px;background:var(--cyan);color:#06111c;font-weight:800;cursor:pointer}.back{display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;padding:8px 0;border:0;background:none;color:var(--cyan);font-weight:750;cursor:pointer}.back svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.2}.course-heading{margin-bottom:22px}.course-heading h1{margin:0;font-size:38px}.course-heading>p{max-width:760px;color:var(--body);line-height:1.6}.module{margin-bottom:13px;overflow:hidden;border:1px solid var(--line);border-radius:15px;background:var(--panel)}.module h2{margin:0;padding:15px 16px;border-bottom:1px solid var(--line);font-size:16px}.lesson-row{display:grid;grid-template-columns:32px 1fr auto;gap:11px;align-items:center;width:100%;padding:13px 16px;border:0;border-bottom:1px solid var(--line);background:none;color:var(--text);text-align:left;cursor:pointer}.lesson-row:last-child{border-bottom:0}.lesson-row:disabled{cursor:not-allowed;opacity:.5}.lesson-check{display:grid;width:26px;height:26px;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--green)}.lesson-check svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:3}.lesson-copy strong,.lesson-copy small{display:block}.lesson-copy strong{font-size:13px}.lesson-copy small{margin-top:4px;color:var(--muted);font-size:10.5px}.lesson-flags{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:5px}
.scrim{position:fixed;z-index:39;inset:0;background:rgba(1,7,13,.68)}.drawer{position:fixed;z-index:40;inset:0 0 0 auto;display:flex;width:min(390px,100vw);height:100dvh;flex-direction:column;transform:translateX(105%);background:var(--panel);border-left:1px solid var(--line);transition:transform .2s ease}.drawer.open{transform:none}.drawer-head{display:grid;grid-template-columns:44px 1fr 44px;gap:11px;align-items:center;padding:16px;border-bottom:1px solid var(--line)}.avatar{display:grid;width:44px;height:44px;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#06111c;font-weight:900}.identity strong,.identity span{display:block}.identity span{margin-top:3px;color:var(--muted);font-size:11px}.drawer-body{flex:1;overflow:auto;padding:14px 11px}.drawer-label{padding:10px 8px 7px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.drawer-card{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--panel2)}.drawer-row{display:grid;width:100%;grid-template-columns:24px 1fr;gap:11px;align-items:center;padding:13px;border:0;border-bottom:1px solid var(--line);background:none;color:var(--text);text-align:left;text-decoration:none;cursor:pointer}.drawer-row:last-child{border-bottom:0}.drawer-row strong,.drawer-row small{display:block}.drawer-row small{margin-top:3px;color:var(--muted);font-size:10px}.drawer-row>.suite-app-icon{display:block;width:24px;height:24px;object-fit:cover;border-radius:7px}.drawer-setting{padding:14px;border-bottom:1px solid var(--line)}.drawer-setting:last-child{border-bottom:0}.drawer-setting>strong{display:block;margin-bottom:10px;font-size:12px}.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.theme-grid button{height:34px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--muted);font-size:9px;cursor:pointer}.theme-grid button[aria-pressed=true]{border-color:var(--cyan);color:var(--text)}.drawer-languages{display:grid;grid-template-columns:1fr 1fr;gap:5px}.drawer-languages button{border:1px solid var(--line)}.drawer-foot{display:flex;justify-content:space-between;padding:13px 18px calc(13px + var(--safe-b));border-top:1px solid var(--line);color:var(--muted);font-size:9px}
dialog{width:min(760px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:0;overflow:hidden;border:1px solid var(--line);border-radius:19px;background:var(--panel);color:var(--text);box-shadow:var(--shadow)}dialog::backdrop{background:rgba(1,7,13,.76)}.lesson-dialog{display:flex;max-height:calc(100dvh - 24px);flex-direction:column}.lesson-dialog header{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:19px;border-bottom:1px solid var(--line)}.lesson-dialog h2{margin:0;font-size:25px}.lesson-tags{display:flex;flex-wrap:wrap;gap:6px;padding:13px 19px 0}.lesson-content{overflow:auto;padding:12px 19px 24px;color:var(--body);line-height:1.68}.lesson-content h2,.lesson-content h3{margin:22px 0 8px;color:var(--text)}.lesson-content p{margin:0 0 12px}.lesson-content li{margin-bottom:7px}.lesson-dialog footer{padding:14px 19px calc(14px + var(--safe-b));border-top:1px solid var(--line);background:var(--panel2)}.lesson-dialog footer p{margin:0;color:var(--muted);font-size:10.5px}.lesson-dialog footer .primary-action{width:100%}.toast{position:fixed;z-index:70;bottom:calc(20px + var(--safe-b));left:50%;padding:11px 15px;transform:translate(-50%,20px);border:1px solid var(--line);border-radius:11px;background:var(--panel);box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.18s}.toast.show{transform:translate(-50%,0);opacity:1}

/* Learning motivation and course identity */
.hero{margin-bottom:18px}.daily-card{display:grid;width:100%;grid-template-columns:48px 1fr auto;gap:14px;align-items:center;margin:0 0 18px;padding:14px 16px;border:1px solid color-mix(in srgb,var(--cyan) 35%,var(--line));border-radius:16px;background:linear-gradient(110deg,color-mix(in srgb,var(--cyan) 13%,var(--panel)),var(--panel));color:var(--text);text-align:left;cursor:pointer}.daily-card.complete{cursor:default}.daily-icon{display:grid;width:44px;height:44px;place-items:center;border-radius:13px;background:var(--cyan);color:#06111c;font-size:20px;font-weight:900}.daily-card small,.daily-card strong,.daily-card em{display:block}.daily-card small{color:var(--cyan);font-size:9px;font-weight:900;letter-spacing:.1em}.daily-card strong{margin:4px 0;font-size:16px}.daily-card em{color:var(--muted);font-size:11px;font-style:normal}.daily-card>b{color:var(--cyan);font-size:12px}.course-card{--course-accent:var(--cyan);position:relative;min-height:270px;overflow:hidden;border-top:4px solid var(--course-accent);background:linear-gradient(155deg,color-mix(in srgb,var(--course-accent) 8%,var(--panel)) 0,var(--panel) 42%)}.course-card.course-1{--course-accent:var(--cyan)}.course-card.course-2{--course-accent:var(--amber)}.course-card.course-3{--course-accent:var(--purple)}.course-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.course-kind{color:var(--course-accent);font-size:9px;font-weight:850;letter-spacing:.08em;text-transform:uppercase}.course-card .number{background:color-mix(in srgb,var(--course-accent) 16%,transparent);color:var(--course-accent)}.course-card .progress i{background:linear-gradient(90deg,var(--course-accent),var(--blue))}.certificate-link{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:10px;padding:8px;border:1px solid color-mix(in srgb,var(--green) 40%,var(--line));border-radius:10px;background:color-mix(in srgb,var(--green) 10%,transparent);color:var(--green);font-size:11px;font-weight:800;cursor:pointer}.certificate-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2}.certificate-locked{margin-top:10px!important;color:var(--muted)!important;font-size:10px!important}.achievement-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}.achievement-strip div{padding:15px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.achievement-strip strong,.achievement-strip span{display:block}.achievement-strip strong{font-size:20px}.achievement-strip span{margin-top:4px;color:var(--muted);font-size:10px}

/* Settings previews */
.theme-grid button{min-width:0;height:53px;padding:5px}.theme-choice em{display:block;margin-top:3px;font-size:8px;font-style:normal}.theme-swatch{display:flex;height:18px;overflow:hidden;border:1px solid rgba(255,255,255,.18);border-radius:5px;background:#111b2e}.theme-swatch i{width:34%;background:#0b1220}.theme-swatch b{flex:1;margin:4px;border-radius:2px;background:#2cbdee}.theme-preview-light .theme-swatch{background:#fff}.theme-preview-light .theme-swatch i{background:#eef1f7}.theme-preview-light .theme-swatch b{background:#0aa9e0}.theme-preview-dark .theme-swatch{background:#101112}.theme-preview-dark .theme-swatch i{background:#060708}.theme-preview-dark .theme-swatch b{background:#c7cdd8}.theme-preview-blue .theme-swatch{background:#0d1c38}.theme-preview-blue .theme-swatch i{background:#081326}.theme-preview-blue .theme-swatch b{background:#cfe0f7}.theme-preview-pink .theme-swatch{background:#251020}.theme-preview-pink .theme-swatch i{background:#170a13}.theme-preview-pink .theme-swatch b{background:#ff7ac6}.theme-preview-default .theme-swatch{background:#101623}.theme-preview-default .theme-swatch i{background:#0a0e15}.theme-preview-default .theme-swatch b{background:#7f93b3}.theme-grid button[aria-pressed=true]{box-shadow:0 0 0 1px var(--cyan)}.language-label{display:flex;align-items:center;gap:6px}.language-flag{font-size:18px;line-height:1}.language-label i{display:grid;min-width:24px;height:20px;place-items:center;border-radius:6px;background:var(--panel2);color:var(--cyan);font-size:8px;font-style:normal;font-weight:900}

/* Earned certificate */
.certificate-dialog{position:relative;padding:46px;text-align:center}.certificate-close{position:absolute;top:14px;right:14px}.certificate-mark{display:grid;width:72px;height:72px;margin:0 auto 15px;place-items:center;border-radius:50%;background:color-mix(in srgb,var(--cyan) 15%,transparent);color:var(--cyan)}.certificate-mark svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:1.8}.certificate-dialog h1{margin:12px 0;color:var(--cyan);font-size:clamp(28px,5vw,48px)}.certificate-dialog h2{margin:0 0 24px;font-family:Georgia,serif;font-size:34px}.certificate-dialog h3{margin:8px 0;font-family:Georgia,serif;font-size:28px}.certificate-dialog>p{color:var(--muted)}.certificate-date{margin-top:25px}.certificate-note{padding-top:14px;border-top:1px solid var(--line);font-size:10px}
.certificate-card-icon{display:grid;width:48px;height:48px;place-items:center;border-radius:14px;background:color-mix(in srgb,var(--course-accent) 14%,transparent);color:var(--course-accent)}.certificate-card-icon svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8}.certificate-requirement{margin-top:auto;padding-top:18px;color:var(--muted);font-size:10px;line-height:1.5}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}@media(max-width:620px){.hero{grid-template-columns:1fr}.source-state{text-align:left}.daily-card{grid-template-columns:42px 1fr}.daily-card>b{grid-column:2}.achievement-strip{grid-template-columns:1fr}.course-grid{grid-template-columns:1fr}.lesson-row{grid-template-columns:30px 1fr}.lesson-flags{grid-column:2;justify-content:flex-start}.topbar{padding-left:12px;padding-right:12px}.brand-button small{display:none}.certificate-dialog{padding:44px 20px 24px}}@media print{body>*{display:none!important}#certificateDialog{position:static;display:block!important;width:100%;max-width:none;max-height:none;border:0;box-shadow:none}#certificateDialog::backdrop,.certificate-close,#printCertificate{display:none!important}.certificate-dialog{padding:60px;color:#07111e;background:#fff}.certificate-dialog h1,.certificate-mark{color:#087fb0}}@media(prefers-reduced-motion:reduce){*,::before,::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* Home: one clear learning path, with optional practice grouped by purpose. */
.home-library{display:grid;gap:18px;margin-top:24px}.home-section{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--panel)}.home-section>summary{display:flex;align-items:center;gap:14px;min-height:80px;padding:18px 20px;cursor:pointer;list-style:none}.home-section>summary::-webkit-details-marker{display:none}.home-section>summary::after{content:'+';font-size:24px;color:var(--cyan);width:24px;text-align:center}.home-section[open]>summary::after{content:'−'}.home-section>summary>span:first-child{flex:1}.home-section summary strong{display:block;font-size:21px}.home-section summary small{display:block;margin-top:5px;line-height:1.5;color:var(--muted);font-size:13px}.home-count{font-size:13px;color:var(--muted)}.home-section-body{padding:0 20px 20px}.home-practice h3{font-size:14px;margin:24px 0 10px;color:var(--text)}.home-draft{margin:0;color:var(--muted);font-size:12px;line-height:1.6}.home-practice .pp-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.home-practice .pp-card{padding:14px;min-height:86px;gap:12px;background:var(--panel2)}.home-practice .pp-card b{font-size:14px}.home-practice .pp-card small{font-size:12px;line-height:1.45;color:var(--muted)}.home-practice .pp-section-icon{width:34px;height:34px;flex-basis:34px}.home-scenario{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--panel2);color:var(--text);text-align:left;cursor:pointer;min-height:68px}.home-scenario b,.home-scenario small{display:block}.home-scenario small{margin-top:5px;color:var(--muted);line-height:1.5}.home-scenario>span:last-child{color:var(--cyan)}.home-practice button:hover{border-color:var(--cyan)}
@media(max-width:620px){.home-section>summary{padding:16px}.home-section-body{padding:0 12px 12px}.home-practice .pp-cards{grid-template-columns:1fr}.home-section summary strong{font-size:19px}}

.home-help{margin:0 0 12px;color:var(--muted);font-size:13px;line-height:1.5}.home-actions{display:flex;gap:10px;flex-wrap:wrap}.home-actions button{min-height:44px;padding:9px 15px;border:1px solid var(--line);border-radius:10px;background:var(--panel2);color:var(--text);font:inherit;font-size:14px;font-weight:700;cursor:pointer}.home-actions button:hover{border-color:var(--cyan)}