.dp-locked-control{position:relative;display:inline-block;min-width:0;max-width:100%}.dp-locked-control>select,.dp-locked-control>div,.dp-locked-control>input{opacity:.55;filter:grayscale(1);cursor:not-allowed}.dp-lock-overlay{position:absolute;inset:0;width:100%;height:100%;border:0!important;background:transparent!important;cursor:not-allowed!important;z-index:2}.dp-lock-overlay:focus-visible{outline:2px solid var(--accent)}.dp-fixed{opacity:.55;filter:grayscale(1);cursor:not-allowed!important}.student-selectors{flex-wrap:wrap}.dp-hint{font-size:10px;line-height:1.5;color:var(--sub);flex-basis:100%;text-align:right}.dp-form-note{padding:9px 12px;border-radius:8px;background:var(--brand-primary-light);line-height:1.7}#dp-score-apply{border:1px solid var(--border);background:var(--brand-primary-light);color:var(--accent);border-radius:8px;padding:8px;font-size:11px;white-space:nowrap;cursor:pointer}.dp-notice{max-width:450px}.dp-notice p{font-size:14px;line-height:1.9;margin:18px 0}.dp-notice footer{display:flex;justify-content:flex-end;gap:10px}.dp-result-score{font-size:11px;color:var(--sub);margin:7px 0;line-height:1.7}.dp-result-score b{color:var(--accent)}.dp-locked-control:has(>select){width:100%}.hdr-select>.dp-locked-control{height:100%}.v2-options.dp-locked-control{display:flex} @media(max-width:600px){.dp-hint{font-size:9px;text-align:left}.dp-notice{width:calc(100vw - 30px)}}

#header .dp-locked-control>select{border-color:var(--border)!important;background:var(--bg);color:var(--sub)}
#header #dp-score-apply{background:var(--brand-primary-light);color:var(--accent);font-weight:600;opacity:1;filter:none}
#header #dp-score-apply[hidden]{display:none}
.dp-notice p{padding:0 20px}.dp-notice footer{padding:0 20px 20px}.dp-notice [data-new]{background:var(--accent);color:white;border-radius:8px;padding:8px 14px}

.dp-preferences-bar{display:flex;align-items:center;gap:14px;padding:0 2px 8px;min-width:0}
#dp-preferences-open{display:inline-flex;align-items:center;gap:5px;flex-shrink:0;border:1px solid var(--border);border-radius:9px;padding:7px 11px;background:var(--brand-primary-light);color:var(--accent);font-size:13px;font-weight:600;cursor:pointer}
#dp-preferences-open:hover{border-color:var(--accent)}#dp-preferences-open:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#dp-preferences-open:disabled{opacity:.6;cursor:wait}
#dp-preferences-summary{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;color:var(--sub)}
@media(max-width:600px){.dp-preferences-bar{gap:6px;flex-wrap:wrap;padding-bottom:6px}#dp-preferences-open{font-size:12px;padding:6px 9px}#dp-preferences-summary{max-width:100%;font-size:10px}}

/* Header: a single aligned toolbar, with one deliberate responsive wrap. */
#header{height:auto;min-height:64px;padding:10px 16px;gap:20px;flex-direction:row;align-items:center}
#header .header-left{gap:9px}
#header .header-right{min-width:0;gap:10px;flex-shrink:1;align-items:center}
#header .student-label{height:36px;font-size:12px;line-height:18px;align-items:center}
#header .student-selectors{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;min-width:0}
#header .hdr-select,#header .hdr-subject-area,#header .hdr-score-wrap,#header #dp-score-apply{box-sizing:border-box;height:36px;border-radius:8px;margin:0;align-items:center}
#header .hdr-select{width:94px;padding:0 9px}
#header .hdr-subject-area{width:184px;min-width:0;padding:0 9px}
#header .hdr-score-wrap{width:92px;min-width:0;flex-shrink:0;padding:0 9px;gap:5px}
#header .hdr-score-wrap input{width:100%;min-width:0;flex:1;appearance:textfield;-moz-appearance:textfield}
#header .hdr-score-wrap input::-webkit-inner-spin-button,#header .hdr-score-wrap input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
#header .hdr-select>.dp-locked-control{display:flex;align-items:center;width:100%;height:100%}
#header .hdr-select select,#header .hdr-score-wrap input{font-size:13px;line-height:20px}
#header .hdr-subject-text{font-size:12px;line-height:18px}
#header #dp-score-apply{display:inline-flex;justify-content:center;flex:0 0 106px;width:106px;padding:0 8px;font-size:12px;line-height:18px;border:1px solid transparent;transition:background-color .15s,color .15s,border-color .15s}
#header #dp-score-apply[hidden]{display:none}
#header .dp-hint{flex:0 0 auto;font-size:10px;line-height:16px;text-align:left;white-space:nowrap;max-width:160px}
@media(max-width:1100px){
 #header{flex-direction:column;align-items:stretch;gap:8px;padding:8px 14px;min-height:0}
 #header .header-right{width:100%;gap:0;justify-content:flex-end}
 #header .student-label{display:none}
 #header .student-selectors{width:100%}
 #header .hdr-subject-area{flex:1;width:auto}
}
@media(max-width:600px){
 #header{padding:8px 12px;gap:8px}
 #header .header-left{min-height:30px}
 #header .student-selectors{display:grid;grid-template-columns:58px minmax(0,1fr) 64px 76px;gap:6px}
 #header .student-selectors:has(#dp-score-apply[hidden]){grid-template-columns:68px minmax(0,1fr) 72px}
 #header .hdr-select,#header .hdr-subject-area,#header .hdr-score-wrap,#header #dp-score-apply{width:100%;min-width:0;grid-column:auto;height:36px;padding:0 6px}
 #header .hdr-select select,#header .hdr-score-wrap input{font-size:12px}
 #header .hdr-select select{padding-right:0}
 #header .hdr-subject-text{font-size:11px;line-height:14px;white-space:normal;word-break:keep-all;overflow-wrap:normal}
 #header .hdr-subject-count{display:none!important}
 #header #dp-score-apply{font-size:11px;padding:0 3px}
 #header .dp-hint{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
}

/* One compact bottom toolbar; deliberate two-row layout on narrow screens. */
#sub-nav{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;column-gap:14px;row-gap:6px;padding:8px 16px 0}
#sub-nav .nav-tabs{grid-column:1;grid-row:1;gap:6px;min-width:0}
#sub-nav .dp-preferences-bar{grid-column:2;grid-row:1;min-width:0;gap:10px;padding:0;flex-wrap:nowrap}
#sub-nav .nav-right{grid-column:3;grid-row:1;gap:6px}
#sub-nav .nav-pill,#sub-nav #dp-preferences-open,#sub-nav .icon-btn{box-sizing:border-box;height:32px;margin:0;align-items:center}
#sub-nav .nav-pill{padding:0 9px}
#sub-nav #dp-preferences-open{padding:0 10px;font-size:12px;line-height:18px}
#sub-nav .icon-btn{width:32px}
#sub-nav #dp-preferences-summary{max-width:100%;flex:1;min-width:0}
@media(max-width:800px){
 #sub-nav{grid-template-columns:minmax(0,1fr) auto;padding:8px 12px 0;column-gap:8px}
 #sub-nav .nav-tabs{grid-column:1/-1;grid-row:1}
 #sub-nav .dp-preferences-bar{grid-column:1;grid-row:2;gap:8px}
 #sub-nav .nav-right{grid-column:2;grid-row:2}
 #sub-nav .nav-pill{font-size:12px;padding:0 8px}
}
@media(max-width:480px){#sub-nav #dp-preferences-summary{display:none}}

/* An unchanged or invalid score cannot trigger reassessment. */
#header #dp-score-apply:disabled{background:var(--bg);color:var(--sub);border-color:var(--border);cursor:not-allowed;opacity:.65}
#header #dp-score-apply:enabled:hover{border-color:var(--accent)}