:root{color-scheme:dark;--bg:#090a08;--panel:#141612;--panel2:#1d201a;--text:#f4f1e7;--muted:#b9b6aa;--accent:#b69a61;--accent2:#dac48f;--border:#36372f;--danger:#ffb4ab;--success:#b7e4b0;--radius:16px}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#25251d 0,var(--bg) 45%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}button,input,select,textarea{font:inherit}a{color:inherit}h1,h2,p{margin-top:0}h1{font-size:clamp(1.75rem,4vw,2.75rem);margin-bottom:.35rem}h2{font-size:1.1rem}.muted{color:var(--muted)}.eyebrow,.unit-mark{color:var(--accent2);font-size:.78rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase}.button{min-height:48px;border:1px solid transparent;border-radius:12px;padding:.75rem 1rem;display:inline-flex;align-items:center;justify-content:center;font-weight:750;text-decoration:none;cursor:pointer;touch-action:manipulation}.button.primary{background:var(--accent);color:#111}.button.primary:hover,.button.primary:focus-visible{background:var(--accent2)}.button.secondary{background:var(--panel2);border-color:var(--border);color:var(--text)}.button.compact{min-height:42px;padding:.55rem .8rem}.login-shell{min-height:100vh;display:grid;place-items:center;padding:1rem}.login-card{width:min(100%,450px);text-align:center;background:rgba(20,22,18,.96);border:1px solid var(--border);border-radius:22px;padding:clamp(1.3rem,5vw,2.2rem);box-shadow:0 24px 80px rgba(0,0,0,.42)}.login-logo{width:min(220px,65vw);height:auto;display:block;margin:-.5rem auto .5rem}.stack{display:grid;gap:.8rem;text-align:left}label{font-weight:700}input,select,textarea{width:100%;min-height:50px;border:1px solid var(--border);border-radius:12px;background:#0d0e0b;color:var(--text);padding:.8rem .95rem}textarea{resize:vertical}input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid rgba(218,196,143,.35);outline-offset:2px}.alert{margin:1rem 0;padding:.85rem 1rem;border:1px solid #6e3833;border-radius:12px;background:#331b19;color:var(--danger)}.alert.success{border-color:#3d6540;background:#172b19;color:var(--success)}.site-header{position:sticky;top:0;z-index:20;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:1rem;padding:.7rem max(1rem,env(safe-area-inset-left));background:rgba(9,10,8,.93);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}.brand img{width:48px;height:48px;object-fit:contain}.brand span{display:grid}.brand small{color:var(--accent2);font-weight:800;letter-spacing:.16em}.brand strong{font-size:1.05rem}.main-nav{justify-self:center;display:flex;gap:.35rem}.main-nav a{padding:.65rem .85rem;border-radius:10px;text-decoration:none;color:var(--muted);font-weight:750}.main-nav a[aria-current="page"],.main-nav a:hover{background:var(--panel2);color:var(--text)}.content-shell,.player-shell{width:min(1180px,calc(100% - 2rem));margin:0 auto;padding:1.25rem 0 3rem}.narrow-shell{max-width:800px}.hero-panel{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;margin-bottom:1.2rem;padding:1.2rem;background:linear-gradient(135deg,rgba(182,154,97,.15),rgba(20,22,18,.95));border:1px solid var(--border);border-radius:var(--radius)}.hero-panel p{margin-bottom:0;color:var(--muted)}.toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.7rem 1rem;align-items:end;margin-bottom:1.2rem}.search-label{grid-column:1/-1}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:1rem}.video-card{min-width:0;overflow:hidden;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);transition:transform .15s,border-color .15s}.video-card:hover{transform:translateY(-2px);border-color:#74694b}.video-link{display:block;text-decoration:none;height:100%}.video-art{aspect-ratio:16/9;display:grid;place-items:center;background:linear-gradient(145deg,#343326,#10110e)}.play-icon{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#111;font-size:1.5rem;padding-left:.2rem}.video-card-body{padding:1rem}.video-card-body h2{margin-bottom:.45rem;word-break:break-word}.video-card-body p{font-size:.85rem;word-break:break-word}.card-footer{display:flex;justify-content:space-between;gap:1rem;color:var(--muted)}.watch-label{color:var(--accent2);font-weight:800}.empty-state{grid-column:1/-1;padding:2rem;border:1px dashed var(--border);border-radius:var(--radius);text-align:center}.dispatch-card{padding:1.2rem;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}.form-help{font-size:.9rem;color:var(--muted)}.player-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem max(1rem,env(safe-area-inset-left));background:var(--panel);border-bottom:1px solid var(--border)}.secondary-header{position:static}.player-heading{margin:.5rem 0 1rem}.video-wrapper{background:#000;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:0 18px 60px rgba(0,0,0,.4)}video{width:100%;max-height:78vh;display:block;background:#000}.touch-controls{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:.7rem;margin-top:1rem}.speed-panel{display:grid;grid-template-columns:1fr minmax(120px,180px);gap:1rem;align-items:center;margin-top:1rem;padding:1rem;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}@media(max-width:720px){.site-header{grid-template-columns:1fr auto}.main-nav{grid-column:1/-1;grid-row:2;justify-self:stretch}.main-nav a{flex:1;text-align:center}.brand strong{font-size:.95rem}.hero-panel{align-items:stretch;flex-direction:column}.content-shell,.player-shell{width:min(100% - 1rem,1180px)}.toolbar{grid-template-columns:1fr}.search-label{grid-column:auto}.touch-controls{grid-template-columns:1fr 1fr}#play-toggle{grid-column:1/-1;grid-row:1}.speed-panel{grid-template-columns:1fr}}@media(max-width:420px){.brand img{width:42px;height:42px}.brand small{font-size:.65rem}.site-header>.button,.site-header form .button{font-size:.85rem}.login-logo{width:190px}}
.player-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem}.player-actions{display:grid;grid-template-columns:minmax(260px,1fr) minmax(260px,.7fr);gap:1rem;margin-top:1rem}.markup-button{background:#c7a75e;color:#111;border-color:#e0c984;font-size:1.05rem}.markup-button:hover{background:#e0c984}.compact-panel{margin-top:0}.markup-editor{scroll-margin-top:90px;margin-top:1.25rem;padding:1rem;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 18px 60px rgba(0,0,0,.35)}.editor-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.editor-heading h2{font-size:1.65rem;margin:.2rem 0}.markup-workspace{position:relative;width:100%;max-height:78vh;margin:1rem auto;background:#000;border:1px solid #4a4c42;border-radius:12px;overflow:hidden;touch-action:none}.markup-workspace canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.markup-workspace #markup-canvas{cursor:crosshair;touch-action:none}.tool-panel{display:flex;flex-wrap:wrap;align-items:end;gap:.75rem;padding:.85rem;background:#0d0e0b;border:1px solid var(--border);border-radius:12px}.tool-group{display:flex;flex-wrap:wrap;gap:.45rem}.tool-buttons{flex:1 1 430px}.tool-button{min-height:44px;padding:.55rem .8rem;border:1px solid var(--border);border-radius:10px;background:var(--panel2);color:var(--text);font-weight:750;cursor:pointer}.tool-button.active{background:var(--accent);color:#111;border-color:var(--accent2)}.tool-field{display:grid;gap:.3rem;font-size:.85rem}.tool-field input[type=color]{width:58px;min-height:44px;padding:.25rem}.tool-field input[type=range]{width:150px;min-height:44px;padding:0}.markup-send-form{margin-top:1rem}.form-grid{display:grid;grid-template-columns:1fr minmax(140px,.35fr);gap:1rem}.send-actions{display:grid;grid-template-columns:auto minmax(220px,1fr);gap:.75rem;margin-top:1rem}.markup-status{min-height:1.5rem;margin-top:.7rem;font-weight:750}.markup-status.success{color:var(--success)}.markup-status.error{color:var(--danger)}.markup-status.pending{color:var(--accent2)}button:disabled{opacity:.6;cursor:wait}@media(max-width:760px){.player-heading{align-items:stretch;flex-direction:column}.player-heading>.button{align-self:flex-start}.player-actions{grid-template-columns:1fr}.editor-heading{flex-direction:column}.tool-panel{align-items:stretch}.tool-field input[type=range]{width:100%}.form-grid,.send-actions{grid-template-columns:1fr}.markup-editor{padding:.65rem}.tool-button{flex:1 1 auto}}

/* v0.4 role, upload, search, and restriction additions */
.main-nav{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap}.main-nav a,.nav-button{min-height:44px;display:inline-flex;align-items:center}.main-nav form{margin:0}.role-badge{border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:.35rem .7rem;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.role-badge.instructor{border-color:#b99553;color:#e4c989;background:rgba(185,149,83,.12)}
.restricted-card{border-color:rgba(185,149,83,.65);box-shadow:0 0 0 1px rgba(185,149,83,.15)}.video-art{position:relative}.lock-badge{position:absolute;top:.7rem;right:.7rem;background:rgba(10,12,10,.88);border:1px solid #b99553;border-radius:999px;padding:.35rem .48rem;font-size:1rem}.tag-row{display:flex;flex-wrap:wrap;gap:.4rem;margin:.7rem 0}.tag{font-size:.76rem;border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:.25rem .5rem;background:rgba(255,255,255,.05)}.card-description{color:#c6c8c2;line-height:1.45}.narrow-shell{max-width:850px}.stack-form{display:grid;gap:1rem}.stack-form label{display:grid;gap:.45rem}.stack-form input,.stack-form textarea,.stack-form select{width:100%}.visibility-fieldset{display:grid;gap:.6rem;border:1px solid rgba(255,255,255,.13);border-radius:12px;padding:1rem}.radio-card{display:flex!important;align-items:center;gap:.65rem!important;padding:.75rem;border-radius:8px;background:rgba(255,255,255,.035)}.radio-card input{width:auto!important}.upload-warning{padding:.75rem 1rem;border-left:3px solid #b99553;background:rgba(185,149,83,.08)}.flash{margin:0 0 1rem;padding:.85rem 1rem;border-radius:8px}.flash.success{background:rgba(60,140,80,.18);border:1px solid rgba(80,180,100,.45)}.flash.error{background:rgba(180,60,60,.17);border:1px solid rgba(220,80,80,.45)}
@media(max-width:760px){.site-header{align-items:flex-start}.main-nav{width:100%;margin-top:.6rem}.role-badge{order:5}.toolbar{align-items:stretch}.toolbar input,.toolbar button{width:100%}}

/* v0.5 upload progress */
.upload-file-summary{padding:.8rem 1rem;border:1px solid rgba(255,255,255,.12);border-radius:10px;background:rgba(255,255,255,.035);color:#d8d9d3}.upload-progress-panel{display:grid;gap:.7rem;padding:1rem;border:1px solid rgba(185,149,83,.38);border-radius:12px;background:rgba(185,149,83,.07)}.upload-progress-heading{display:flex;justify-content:space-between;gap:1rem;align-items:center}.upload-progress-track{height:18px;overflow:hidden;border-radius:999px;background:#0b0d0b;border:1px solid rgba(255,255,255,.14)}.upload-progress-bar{height:100%;width:0;background:linear-gradient(90deg,#8f733d,#d0ae65);transition:width .15s linear}.upload-progress-details{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem;color:#c8c9c3;font-size:.88rem}.upload-progress-details span:nth-child(2){text-align:center}.upload-progress-details span:nth-child(3){text-align:right}.upload-status{min-height:1.5rem;font-weight:700}.upload-status.success{color:#8fd09b}.upload-status.error{color:#f29494}.upload-status.pending{color:#d8bd7a}.button[disabled]{opacity:.58;cursor:not-allowed}@media(max-width:650px){.upload-progress-details{grid-template-columns:1fr}.upload-progress-details span:nth-child(n){text-align:left}}

/* v0.6 instructor deletion and clear search */
.search-actions{display:flex;gap:.55rem;align-items:center}.button.ghost{background:transparent;border-color:rgba(255,255,255,.2);color:var(--text)}.button.ghost:hover{background:rgba(255,255,255,.07)}.button.danger{background:#6f2424;border-color:#a64a4a;color:#fff}.button.danger:hover{background:#8a2e2e}.video-delete-form{padding:.75rem 1rem 1rem;border-top:1px solid var(--border)}.video-delete-form .button{width:100%}.empty-state .button{margin-top:.75rem}@media(max-width:720px){.search-actions{display:grid;grid-template-columns:1fr 1fr}.search-actions .button{width:100%;justify-content:center}}

.instructor-actions-label{padding:.7rem 1rem 0;color:var(--accent2);font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;border-top:1px solid var(--border)}.watch-header-actions{display:flex;align-items:center;gap:.65rem;flex-wrap:wrap}.watch-header-actions form{margin:0}@media(max-width:720px){.watch-header-actions{width:100%}.watch-header-actions .button{width:100%}}

/* Touch-safe text entry. Native prompts are deliberately not used. */
.signed-in-name{color:var(--muted);max-width:200px;overflow-wrap:anywhere;font-size:.85rem}
#youtube-player{width:100%;aspect-ratio:16/9;min-height:200px;display:block;border:0}
.screenshot-panel{display:grid;gap:.75rem;margin:1rem 0}
.video-card[hidden]{display:none}
[hidden]{display:none!important}
.text-panel{display:grid;gap:.65rem;margin-top:1rem;padding:1rem;background:var(--panel2);border:1px solid var(--accent);border-radius:12px;scroll-margin-top:160px}
.text-panel h3,.text-panel p{margin:0}
.text-panel textarea{font-size:16px;min-height:100px}
.text-actions{display:flex;gap:.75rem;flex-wrap:wrap}
.text-actions .button{flex:1;min-height:48px}
.markup-workspace{max-height:none}
.markup-workspace #markup-canvas{user-select:none;-webkit-user-select:none}
@media(max-width:760px){.text-panel{padding:.75rem}.text-actions{display:grid;grid-template-columns:1fr 1fr}}
.nav-button{background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:.55rem .8rem;cursor:pointer}
.video-link{height:auto}.review-summary{padding:1rem;border-top:1px solid var(--border)}
.review-summary h3{font-size:.95rem;margin:0 0 .6rem}.review-list{list-style:none;padding:0;margin:.5rem 0}
.review-list li{padding:.7rem 0;border-bottom:1px solid var(--border);overflow-wrap:anywhere}
.review-list p{margin:.35rem 0}.review-list a{color:var(--accent2);display:inline-block;padding:.3rem 0}
.full-review-list li{margin:1rem 0;padding:1rem;background:var(--panel);border-radius:12px}
.full-review-list a.button{padding:.75rem 1rem}.review-note{white-space:pre-wrap;overflow-wrap:anywhere}
.saved-review-image{display:block;max-width:100%;height:auto;margin:1.2rem auto;border:1px solid var(--border)}
#paste-screenshot{font-size:16px}#saved-review-link,#markup-download-link{margin-top:.75rem}
@media(max-width:760px){.site-header{position:static}.markup-editor,.text-panel{scroll-margin-top:12px}}