/* TKB Web v3.2.4 — Responsive UI + BGH approval visibility + two-way schedule sync
   Desktop/tablet/mobile share the same information architecture.
   Mobile favors compact controls, touch targets, day cards and safe-area spacing. */

:root{--v320-touch:44px;--v320-gap:12px;--v320-mobile-max:760px}
html{scroll-padding-top:84px}
body{min-width:0;overflow-x:hidden}
button,a,input,select,textarea{touch-action:manipulation}

/* ---------- Main application header ---------- */
.app-header{isolation:isolate}
.app-header-inner{min-width:0}
.app-header-actions{min-width:0}
.app-header-actions>a,.app-header-actions>button,.app-header-actions>form>button{min-height:40px}

/* Wizard steps: one system, horizontal on compact screens */
#root nav[aria-label="Các bước nhập dữ liệu"]{scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch}
#root nav[aria-label="Các bước nhập dữ liệu"]>button{scroll-snap-align:start}

/* Result area gets explicit responsive hooks. */
.tkb-result-panel{min-width:0}
.tkb-result-head{min-width:0}
.tkb-result-actions{min-width:0}
.tkb-result-filterbar{min-width:0}
.tkb-result-actions>*{min-height:40px}

/* Desktop timetable stays table-based; mobile gets a native card view. */
.tkb-mobile-schedule{display:none}
.tkb-desktop-schedule{display:block;max-width:100%;-webkit-overflow-scrolling:touch}
.tkb-mobile-day{border:1px solid var(--border);border-radius:14px;background:var(--card);overflow:hidden}
.tkb-mobile-day>header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border);background:var(--muted)}
.tkb-mobile-day>header strong{font-size:14px}
.tkb-mobile-day>header small{color:var(--muted-foreground);font-size:11px}
.tkb-mobile-slot{display:grid;grid-template-columns:48px minmax(0,1fr);gap:9px;align-items:start;padding:10px 11px;border-bottom:1px solid var(--border)}
.tkb-mobile-slot:last-child{border-bottom:0}
.tkb-mobile-period{display:grid;place-items:center;min-height:34px;border-radius:9px;background:var(--muted);color:var(--foreground);font-size:11px;font-weight:800}
.tkb-mobile-lesson{min-width:0;border:1px solid var(--border);border-radius:10px;padding:9px 10px;background:var(--background)}
.tkb-mobile-lesson strong,.tkb-mobile-lesson span,.tkb-mobile-lesson small{display:block;overflow-wrap:anywhere}
.tkb-mobile-lesson strong{font-size:13px;line-height:1.35}
.tkb-mobile-lesson span{margin-top:3px;color:var(--muted-foreground);font-size:11px}
.tkb-mobile-lesson small{margin-top:2px;color:var(--muted-foreground);font-size:10px}
.tkb-mobile-empty{display:flex;align-items:center;min-height:34px;color:var(--muted-foreground);font-size:12px}

/* ---------- Workspace bar ---------- */
.tkb-workspace-bar,.tkb-workspace-identity,.tkb-workspace-actions{min-width:0}

/* ---------- Center v26: touch-safe schedule editing ---------- */
.v320-mobile-drag-tip{display:none}
#v26-content.v320-tap-moving .v26-slot{transition:box-shadow .14s ease,background .14s ease}
#v26-content.v320-tap-moving .v26-slot:not(.v2631-closed-slot){cursor:pointer}
.v26-entry.v320-tap-source,.v26-slot:has(.v320-tap-source){outline:3px solid #0f8b6d;outline-offset:-3px;background:#e7f7f1!important}
.v26-slot.v320-tap-target{box-shadow:inset 0 0 0 3px #14a37f;background:#eefaf6!important}
.v310-class-select,.v310-class-select-actions{min-width:0}
.v310-class-picker-trigger{min-width:0}

/* Center tables: sticky first column makes horizontal browsing usable. */
#v26-content .v26-timetable th:first-child,#v26-content .v26-timetable td:first-child{position:sticky;left:0;z-index:2}
#v26-content .v26-timetable thead th:first-child{z-index:4}

/* ---------- Operations hub v270 ---------- */
.v270 nav.v302-ops-tabs{-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}
.v270 nav.v302-ops-tabs button{scroll-snap-align:start}
.v270 .v270-scroll{overscroll-behavior-inline:contain}

/* ---------- Shared site/admin ---------- */
.topbar,.top-actions,.brand{min-width:0}
.top-actions{min-width:0}
.panel-card,.page-shell{min-width:0}

/* ---------- Tablet ---------- */
@media (max-width:1024px){
  .app-header-inner{padding-left:14px!important;padding-right:14px!important}
  .app-header-actions{width:100%;justify-content:flex-start!important;flex-wrap:nowrap!important;overflow-x:auto;padding-bottom:2px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
  .app-header-actions>*{flex:0 0 auto}
  #root nav[aria-label="Các bước nhập dữ liệu"]{display:flex!important;grid-template-columns:none!important;overflow-x:auto!important;gap:7px!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button{min-width:148px!important;padding:10px 12px!important}
  .tkb-result-actions{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto;padding-bottom:2px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
  .tkb-result-actions>*{flex:0 0 auto}
  .v270>header{padding-inline:16px}
}

/* ---------- Phone ---------- */
@media (max-width:760px){
  html{scroll-padding-top:62px}
  body{font-size:15px}

  /* Workspace bar becomes one compact status row plus optional school switch. */
  .tkb-workspace-bar{display:grid!important;grid-template-columns:minmax(0,1fr) auto!important;align-items:center!important;gap:6px 8px!important;padding:7px 10px!important}
  .tkb-workspace-identity{display:block!important;min-width:0}
  .tkb-workspace-identity>span{display:none!important}
  .tkb-workspace-identity>strong{display:block!important;max-width:none!important;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}
  .tkb-workspace-identity>small{display:block!important;margin-top:1px;font-size:9.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .tkb-workspace-bar form{grid-column:1/-1;width:100%}
  .tkb-workspace-bar label{width:100%;justify-content:space-between}
  .tkb-workspace-bar select{width:min(70vw,320px);max-width:70vw!important;min-height:38px!important;font-size:14px!important}
  .tkb-workspace-actions{grid-column:2;grid-row:1;justify-content:flex-end!important;gap:5px!important;margin:0!important}
  .tkb-data-status{padding:4px 7px!important;font-size:9px!important}
  .tkb-workspace-actions>a{min-height:36px;display:inline-flex;align-items:center;padding:5px 8px!important;font-size:10px}
  #v270-entry{min-height:36px!important;padding:5px 8px!important;font-size:10px!important}
  .tkb-demo-banner{padding:7px 10px!important;font-size:10px!important}

  /* App header: brand row + horizontally scrollable actions, no wrapping wall. */
  .app-header{position:sticky!important;top:0!important}
  .app-header-inner{display:grid!important;grid-template-columns:minmax(0,1fr)!important;gap:7px!important;padding:7px 10px!important}
  .app-header-inner>div:first-child{gap:8px!important;min-width:0}
  .app-brand-logo{width:36px!important;height:36px!important;border-radius:11px!important}
  .app-header-inner>div:first-child p:first-child{font-size:14px!important;line-height:1.2!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .app-header-inner>div:first-child p:last-child{font-size:10px!important}
  .app-header-actions{display:flex!important;width:calc(100vw - 20px)!important;max-width:calc(100vw - 20px)!important;gap:6px!important;margin:0!important;padding:1px 0 3px!important;overflow-x:auto!important;overscroll-behavior-inline:contain;scroll-snap-type:x proximity}
  .app-header-actions>*{scroll-snap-align:start}
  .app-header-actions>a,.app-header-actions>button,.app-header-actions>form>button{height:38px!important;min-height:38px!important;padding:0 10px!important;border-radius:10px!important;font-size:12px!important}
  .app-header-actions svg{width:15px!important;height:15px!important}
  .app-header-actions .hidden.max-w-48{display:none!important}

  /* Main canvas uses almost all phone width. */
  #root>div>div.mx-auto,#root .mx-auto.w-full.max-w-\[1500px\]{padding-left:10px!important;padding-right:10px!important;padding-top:12px!important}
  #root .no-print.mb-6.flex.flex-col.justify-between{margin-bottom:12px!important;gap:10px!important}
  #root .no-print.mb-6.flex.flex-col.justify-between h1{font-size:22px!important;line-height:1.2!important}
  #root .no-print.mb-6.flex.flex-col.justify-between p{line-height:1.45!important}
  #root .no-print.mb-6.flex.flex-col.justify-between button{width:100%;min-height:44px}

  /* Step navigator is a compact swipeable rail. */
  #root nav[aria-label="Các bước nhập dữ liệu"]{margin-bottom:12px!important;border-radius:13px!important;padding:5px!important;gap:5px!important;scrollbar-width:none!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]::-webkit-scrollbar{display:none}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button{min-width:126px!important;min-height:52px!important;gap:8px!important;padding:7px 9px!important;border-radius:10px!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button>span:first-child{width:28px!important;height:28px!important;border-radius:8px!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button span.block.text-\[11px\]{display:none!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button span.block.text-sm{font-size:12px!important;line-height:1.25!important}

  /* Setup: one field per row on phones, readable input size avoids iOS zoom. */
  .tkb-setup-shell{padding:8px!important;gap:8px!important}
  .tkb-setup-card{padding:12px!important;border-radius:13px!important}
  .tkb-setup-fields-school,.tkb-setup-fields-grid{grid-template-columns:1fr!important;grid-template-areas:none!important}
  .tkb-setup-field-schoolname{grid-column:auto!important;grid-area:auto!important}
  .tkb-setup-fields-school>.tkb-setup-field{grid-area:auto!important}
  .tkb-setup-field input,.tkb-setup-field select{min-height:44px!important;font-size:16px!important}

  /* Result header and actions. */
  .tkb-result-panel{border-radius:14px!important}
  .tkb-result-head{padding:14px!important;gap:10px!important}
  .tkb-result-head h2{font-size:18px!important}
  .tkb-result-actions{width:100%;gap:6px!important;margin-left:0!important;padding-bottom:3px}
  .tkb-result-actions button{min-height:40px!important;padding-inline:10px!important;font-size:12px!important;white-space:nowrap}
  .tkb-result-filterbar{padding:10px!important;gap:8px!important}
  .tkb-result-filterbar>div:first-child{display:flex!important;flex-wrap:nowrap!important;width:100%!important;overflow-x:auto;scrollbar-width:none}
  .tkb-result-filterbar>div:first-child::-webkit-scrollbar{display:none}
  .tkb-result-filterbar>div:first-child button{flex:0 0 auto;min-height:38px;padding:7px 10px!important;font-size:12px!important;white-space:nowrap}
  .tkb-result-filterbar>label{width:100%!important;min-width:0!important;margin-left:0!important}
  .tkb-result-class-picker.is-native,.tkb-result-class-picker.is-unified{width:100%!important;grid-template-columns:40px minmax(0,1fr) 40px!important}
  .tkb-result-class-select-wrap,.tkb-result-class-picker.is-native .tkb-result-class-nav,.tkb-result-class-picker.is-unified .tkb-result-class-nav,.tkb-result-class-picker.is-unified .tkb-result-class-trigger{min-height:44px!important}
  .tkb-result-class-select-wrap select{height:44px!important;font-size:16px!important}

  /* The weekly result becomes day cards instead of a 900px-wide table. */
  .tkb-desktop-schedule{display:none!important}
  .tkb-mobile-schedule{display:grid!important;grid-template-columns:1fr;gap:10px}
  .schedule-session>div:first-child{margin-bottom:8px!important}

  /* Generic forms/cards: avoid side-by-side controls that become unreadable. */
  .tkb-list-search{padding:10px!important}
  .tkb-table-scroll{margin-inline:-1px}

  /* Center: mobile dropdown navigation already exists; make content truly touch-first. */
  #v26-head{padding-top:max(8px,env(safe-area-inset-top))!important}
  #v26-content{padding:10px 9px calc(16px + env(safe-area-inset-bottom))!important}
  .v2621-mobile-tab-wrap{min-height:48px!important}
  .v2621-mobile-tab-wrap select{min-height:40px!important;font-size:16px!important}
  .v26-title{display:block!important}
  .v26-title-actions,.v26-actions{display:flex!important;flex-wrap:nowrap!important;width:100%!important;margin-top:10px!important;overflow-x:auto;gap:6px!important;scrollbar-width:none}
  .v26-title-actions::-webkit-scrollbar,.v26-actions::-webkit-scrollbar{display:none}
  .v26-title-actions button,.v26-actions button{flex:0 0 auto!important;width:auto!important;min-height:42px!important;padding:8px 11px!important;white-space:nowrap}
  .v2634-schedule-toolbar{gap:8px!important}
  .v310-class-select{width:100%!important}
  .v310-class-select-actions{display:grid!important;grid-template-columns:42px minmax(0,1fr) 42px!important;width:100%!important;gap:6px!important}
  .v310-class-select-actions>button{min-height:44px!important}
  .v310-class-picker-trigger{width:100%!important;max-width:none!important}
  .v312-drag-guide{grid-template-columns:1fr!important;gap:5px!important;padding:9px 10px!important}
  .v312-drag-guide>span:first-child{display:none!important}
  .v320-mobile-drag-tip{display:block!important;color:#075d49;font-weight:750}
  #v26-content .v26-tablewrap{border-radius:10px!important}
  #v26-content .v26-timetable{min-width:690px!important}
  #v26-content .v26-timetable th,#v26-content .v26-timetable td{padding:6px!important}
  #v26-content .v26-timetable td{height:70px!important}
  #v26-content .v26-timetable th:first-child,#v26-content .v26-timetable td:first-child{min-width:48px!important;background:#f4faf7!important;box-shadow:1px 0 0 #d9e7e1}
  #v26-content .v26-entry{touch-action:manipulation;cursor:pointer}
  #v26-content .v26-lock{opacity:1!important;min-width:32px!important;min-height:32px!important}

  /* Operations hub: sticky compact header + single-row tab rail. */
  .v270{font-size:13px!important}
  .v270>header{position:sticky!important;top:0!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto!important;gap:8px!important;padding:9px 10px!important}
  .v270>header h1{font-size:17px!important;line-height:1.2!important}
  .v270>header small{display:block;max-width:70vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:10px!important}
  .v270>header button{min-height:40px!important;padding:7px 10px!important}
  .v270 nav.v302-ops-tabs{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto!important;gap:5px!important;margin:8px 0 10px!important;padding:0 10px 5px!important;scrollbar-width:none}
  .v270 nav.v302-ops-tabs::-webkit-scrollbar{display:none}
  .v270 nav.v302-ops-tabs button{flex:0 0 auto!important;min-height:38px!important;padding:7px 10px!important;font-size:11px!important;white-space:nowrap}
  .v270 main{padding:0 10px calc(48px + env(safe-area-inset-bottom))!important}
  .v270-card{padding:13px!important;border-radius:13px!important}
  .v270-toolbar{display:grid!important;grid-template-columns:1fr!important;gap:7px!important}
  .v270-toolbar>button,.v270-toolbar>select,.v270-toolbar>input,.v270-toolbar>label{width:100%!important;min-height:44px!important}
  .v270 input,.v270 select,.v270 textarea{font-size:16px!important}
  .v270-scroll{margin-inline:-3px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .v270-scroll table{min-width:680px}
  .v310-reg-metrics{grid-template-columns:1fr 1fr!important}
  .v310-rule-flow{grid-template-columns:1fr 1fr!important}

  /* Shared account/admin pages. */
  .topbar{position:sticky!important;top:0!important;z-index:80!important;display:grid!important;grid-template-columns:minmax(0,1fr)!important;gap:8px!important;padding:8px 10px!important;background:#fff}
  .brand{max-width:100%;gap:8px!important}
  .brand strong{display:block;max-width:70vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .brand small{display:none!important}
  .top-actions{display:flex!important;flex-wrap:nowrap!important;justify-content:flex-start!important;max-width:calc(100vw - 20px);overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
  .top-actions::-webkit-scrollbar{display:none}
  .top-actions>*{flex:0 0 auto}
  .top-actions .btn,.top-user-chip{min-height:40px!important}
  .top-user-chip strong{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .page-shell{width:calc(100% - 20px)!important;padding-top:14px!important}
  .panel-card{padding:15px!important;border-radius:15px!important}

  /* Safe bottom room for iPhone home indicator. */
  .site-footer{padding-bottom:max(10px,env(safe-area-inset-bottom))}
}

/* Very narrow phones */
@media (max-width:390px){
  .tkb-workspace-actions>a{display:none!important}
  #v270-entry{font-size:0!important;width:38px;padding:0!important}
  #v270-entry svg{margin:0!important}
  .app-header-actions>a,.app-header-actions>button,.app-header-actions>form>button{font-size:11px!important;padding-inline:9px!important}
  #root nav[aria-label="Các bước nhập dữ liệu"]>button{min-width:116px!important}
  .tkb-result-actions button{font-size:11px!important}
  .v310-reg-metrics,.v310-rule-flow{grid-template-columns:1fr!important}
}

/* Wide desktop: keep content airy without giant empty bands. */
@media (min-width:1440px){
  .app-header-inner,#root .mx-auto.w-full.max-w-\[1500px\]{max-width:1540px!important}
  .tkb-result-head{padding-inline:22px!important}
  .v270 main,.v270 nav.v302-ops-tabs{max-width:1320px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}

/* v3.2.3 — trạng thái gửi BGH duyệt trong Trung tâm */
.v323-approval-strip{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0 12px;padding:11px 13px;border:1px solid #d8e7e1;border-radius:12px;background:#f7fbf9}.v323-approval-strip>div{display:grid;gap:2px}.v323-approval-strip span{font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:#64748b}.v323-approval-strip strong{font-size:12px;color:#16352d}.v323-approval-strip small{font-size:10px;color:#64748b;line-height:1.4}.v323-approval-strip button,.v323-submit-approval{background:#08755a!important;color:#fff!important;border-color:#08755a!important;font-weight:850!important}.v323-approval-strip.status-pending{background:#fff8e8;border-color:#f1d18a}.v323-approval-strip.status-pending strong{color:#9a6700}.v323-approval-strip.status-approved,.v323-approval-strip.status-published{background:#ecfdf5}.v323-approval-strip.status-approved strong,.v323-approval-strip.status-published strong{color:#047857}.v323-approval-strip.status-invalidated,.v323-approval-strip.status-changes_requested,.v323-approval-strip.status-rejected{background:#fff5f2;border-color:#efc9bf}.v323-approval-strip.status-invalidated strong,.v323-approval-strip.status-changes_requested strong,.v323-approval-strip.status-rejected strong{color:#a33a2b}@media(max-width:640px){.v323-approval-strip{align-items:stretch;flex-direction:column}.v323-approval-strip button{width:100%;min-height:44px}}

/* v3.2.4 — approval controls on desktop/tablet/mobile */
.v324-review-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.v324-review-actions .v324-approve,.v26-actions .v324-approve{background:#08755a!important;color:#fff!important;border-color:#08755a!important;font-weight:800}
.v324-review-actions .v324-reject,.v26-actions .v324-reject{background:#fff4f2!important;color:#b42318!important;border-color:#f0b4ad!important}
.v323-approval-strip em{display:block;margin-top:4px;color:#9a6700;font-style:normal;font-size:12px;font-weight:700}
@media(max-width:640px){.v324-review-actions{display:grid;grid-template-columns:1fr;width:100%}.v324-review-actions button{width:100%;min-height:44px}.v26-title-actions .v324-approve,.v26-title-actions .v324-reject{min-height:42px}}