/* ============ Toasts ============ */
#dc-toasts { position: fixed; top: 20px; right: 20px; z-index: 9000; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.dc-toast {
    display: flex; align-items: center; gap: 11px; min-width: 260px; max-width: 380px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); box-shadow: var(--shadow-lg);
    padding: 13px 16px; font-size: 13.5px; font-weight: 500; color: var(--ink);
    transform: translateX(120%); opacity: 0; transition: transform .3s var(--ease), opacity .3s var(--ease); pointer-events: auto;
}
.dc-toast.show { transform: translateX(0); opacity: 1; }
.dc-toast .icon { flex-shrink: 0; }
.dc-toast.success { border-left: 3px solid var(--success); } .dc-toast.success .icon { color: var(--success); }
.dc-toast.error { border-left: 3px solid var(--danger); } .dc-toast.error .icon { color: var(--danger); }
.dc-toast.warning { border-left: 3px solid var(--warning); } .dc-toast.warning .icon { color: var(--warning); }
.dc-toast.info { border-left: 3px solid var(--info); } .dc-toast.info .icon { color: var(--info); }

/* ============ Modal ============ */
.modal-overlay {
    position: fixed; inset: 0; z-index: 8000; background: rgba(16,18,26,.42); backdrop-filter: blur(3px);
    display: none; align-items: flex-start; justify-content: center; padding: 60px 20px;
    opacity: 0; transition: opacity .2s var(--ease); pointer-events: none; overflow-y: auto;
}
.modal-overlay.show { display: flex; pointer-events: auto; }
.modal-overlay.open { opacity: 1; }
.modal-box {
    width: 100%; max-width: 560px; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow-lg);
    display: flex; flex-direction: column; max-height: calc(100vh - 120px); overflow: hidden;
    transform: translateY(14px) scale(.98); opacity: 0; transition: transform .24s var(--ease), opacity .24s var(--ease);
}
.modal-overlay.open .modal-box { transform: translateY(0) scale(1); opacity: 1; }
.modal-box.sm { max-width: 440px; } .modal-box.lg { max-width: 760px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.modal-header h3 { font-size: 16.5px; font-weight: 650; }
.modal-header .sub { font-size: 12.5px; color: var(--muted); margin-top: 2px; font-weight: 400; }
.modal-close { width: 34px; height: 34px; border-radius: var(--r-xs); border: none; background: transparent; color: var(--muted); display: inline-flex; align-items: center; justify-content: center; transition: all .15s var(--ease); }
.modal-close:hover { background: var(--surface-3); color: var(--ink); }
.modal-body { padding: 22px; overflow-y: auto; flex: 1 1 auto; min-height: 0; }
.modal-footer { padding: 15px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; flex-shrink: 0; background: var(--surface-2); }

/* ============ Premium dialog ============ */
.dialog-overlay { position: fixed; inset: 0; z-index: 8500; background: rgba(16,18,26,.46); backdrop-filter: blur(3px); display: none; align-items: center; justify-content: center; padding: 20px; opacity: 0; transition: opacity .2s var(--ease); pointer-events: none; }
.dialog-overlay.show { display: flex; pointer-events: auto; } .dialog-overlay.open { opacity: 1; }
.dialog-box { width: 100%; max-width: 400px; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow-lg); padding: 28px 26px 22px; text-align: center; transform: scale(.95); opacity: 0; transition: transform .22s var(--ease), opacity .22s var(--ease); }
.dialog-overlay.open .dialog-box { transform: scale(1); opacity: 1; }
.dialog-ico { width: 60px; height: 60px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.dialog-ico .icon { width: 28px; height: 28px; }
.dialog-ico.danger { background: var(--danger-soft); color: var(--danger); box-shadow: 0 0 0 8px rgba(217,58,58,.06); }
.dialog-ico.primary { background: var(--primary-soft); color: var(--primary); box-shadow: 0 0 0 8px rgba(67,56,202,.06); }
.dialog-ico.success { background: var(--success-soft); color: var(--success); box-shadow: 0 0 0 8px rgba(14,156,106,.06); }
.dialog-box h3 { font-size: 18px; margin-bottom: 7px; }
.dialog-box p { font-size: 13.5px; color: var(--muted); line-height: 1.55; }
.dialog-actions { display: flex; gap: 10px; margin-top: 22px; }
.dialog-actions .btn { flex: 1; }

/* ============ Searchable select ============ */
.select-search { position: relative; }
.ss-control { display: flex; align-items: center; gap: 8px; width: 100%; min-height: 42px; padding: 0 12px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--r-sm); cursor: pointer; transition: border-color .15s var(--ease), box-shadow .15s var(--ease); }
.ss-control:hover { border-color: #C3C7D1; }
.select-search.open .ss-control { border-color: var(--primary); box-shadow: 0 0 0 3.5px var(--primary-softer); }
.ss-value { flex: 1; font-size: 14px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ss-value.placeholder { color: var(--faint); }
.ss-control .icon { color: var(--faint); width: 17px; height: 17px; transition: transform .18s var(--ease); }
.select-search.open .ss-control .icon.chev { transform: rotate(180deg); }
.ss-clear { color: var(--faint); display: none; }
.select-search.has-value .ss-clear { display: inline-flex; }
.ss-clear:hover { color: var(--danger); }
.ss-panel { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 7000; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); box-shadow: var(--shadow-lg); overflow: hidden; display: none; }
.select-search.open .ss-panel { display: block; animation: ssIn .16s var(--ease); }
@keyframes ssIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.ss-search { padding: 10px; border-bottom: 1px solid var(--border); position: relative; }
.ss-search .icon { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--faint); }
.ss-search input { width: 100%; height: 36px; padding: 0 12px 0 36px; border: 1px solid var(--border-strong); border-radius: var(--r-xs); outline: none; font-size: 13.5px; }
.ss-search input:focus { border-color: var(--primary); }
.ss-list { max-height: 240px; overflow-y: auto; padding: 6px; }
.ss-opt { padding: 9px 12px; border-radius: var(--r-xs); font-size: 13.5px; color: var(--ink-2); cursor: pointer; display: flex; align-items: center; gap: 10px; }
.ss-opt:hover, .ss-opt.active { background: var(--primary-softer); color: var(--primary-d); }
.ss-opt.selected { color: var(--primary); font-weight: 600; }
.ss-opt .ss-sub { font-size: 11.5px; color: var(--muted); }
.ss-empty { padding: 22px; text-align: center; font-size: 13px; color: var(--muted); }

/* ============ Date / Time pickers ============ */
.dc-pop { position: absolute; z-index: 8800; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg); box-shadow: var(--shadow-lg); padding: 14px; display: none; }
.dc-pop.show { display: block; animation: ssIn .16s var(--ease); }
.dp-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.dp-title { font-size: 14px; font-weight: 650; }
.dp-nav { width: 30px; height: 30px; border-radius: var(--r-xs); border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); display: inline-flex; align-items: center; justify-content: center; }
.dp-nav:hover { background: var(--surface-3); }
.dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.dp-dow { font-size: 11px; font-weight: 600; color: var(--faint); text-align: center; padding: 6px 0; text-transform: uppercase; }
.dp-day { width: 36px; height: 34px; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; color: var(--ink-2); border-radius: var(--r-xs); cursor: pointer; transition: all .12s var(--ease); }
.dp-day:hover { background: var(--surface-3); }
.dp-day.muted { color: var(--faint); }
.dp-day.today { border: 1.5px solid var(--primary); color: var(--primary); font-weight: 600; }
.dp-day.selected { background: var(--primary); color: #fff; font-weight: 600; }
.dp-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--border); }
.dp-foot button { background: none; border: none; color: var(--primary); font-size: 12.5px; font-weight: 600; padding: 4px 8px; border-radius: var(--r-xs); }
.dp-foot button:hover { background: var(--primary-softer); }

.tp-cols { display: flex; gap: 8px; }
.tp-col { flex: 1; }
.tp-col-label { font-size: 11px; font-weight: 600; color: var(--faint); text-transform: uppercase; text-align: center; margin-bottom: 6px; }
.tp-scroll { height: 176px; overflow-y: auto; border: 1px solid var(--border); border-radius: var(--r-xs); padding: 4px; }
.tp-item { padding: 7px 0; text-align: center; font-size: 13.5px; color: var(--ink-2); border-radius: var(--r-xs); cursor: pointer; }
.tp-item:hover { background: var(--surface-3); }
.tp-item.selected { background: var(--primary); color: #fff; font-weight: 600; }

/* ============ Tabs ============ */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 22px; overflow-x: auto; }
.tab-btn { padding: 11px 16px; font-size: 13.5px; font-weight: 550; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; transition: color .15s var(--ease), border-color .15s var(--ease); cursor: pointer; }
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ============ Dropdown menu ============ */
.dc-menu { position: absolute; z-index: 8600; min-width: 180px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); box-shadow: var(--shadow-lg); padding: 6px; opacity: 0; transform: translateY(-6px); transition: opacity .15s var(--ease), transform .15s var(--ease); }
.dc-menu.open { opacity: 1; transform: translateY(0); }
.dc-menu-item { display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 12px; border: none; background: transparent; border-radius: var(--r-xs); font-size: 13.5px; font-weight: 500; color: var(--ink-2); text-align: left; transition: background .12s var(--ease), color .12s var(--ease); }
.dc-menu-item .icon { width: 17px; height: 17px; color: var(--muted); }
.dc-menu-item:hover { background: var(--surface-3); color: var(--ink); }
.dc-menu-item.danger { color: var(--danger); } .dc-menu-item.danger .icon { color: var(--danger); }
.dc-menu-item.danger:hover { background: var(--danger-soft); }
.dc-menu-sep { height: 1px; background: var(--border); margin: 5px 0; }

/* ============ Pay invoice header ============ */
.pay-inv { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r); margin-bottom: 18px; }

/* ============ Student pay-method picker ============ */
.pay-group-lbl { font-size: 12px; font-weight: 650; letter-spacing: .03em; text-transform: uppercase; color: var(--muted); margin: 16px 0 8px; }
.pay-opts { display: grid; gap: 8px; }
.pay-opt { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1.5px solid var(--border); border-radius: var(--r); cursor: pointer; transition: border-color .15s, background .15s; }
.pay-opt:hover { border-color: var(--primary-2); background: var(--surface-2); }
.pay-opt.sel { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 6%, transparent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 12%, transparent); }
.pay-opt input { display: none; }
.pay-opt-dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }
.pay-opt-body { display: flex; flex-direction: column; gap: 1px; }
.pay-opt-name { font-weight: 600; font-size: 14px; color: var(--ink); }
.pay-opt-sub { font-size: 12.5px; color: var(--muted); }
.pay-badge { display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .04em; color: #0B7E56; background: #E4F5EE; border-radius: 5px; padding: 1px 6px; margin-left: 4px; vertical-align: middle; }
.pay-detail { margin-top: 14px; border-top: 1px dashed var(--border); padding-top: 14px; }
.pay-acc { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r); padding: 12px 14px; margin-bottom: 10px; }
.pay-acc-lbl { font-size: 12px; color: var(--muted); }
.pay-acc-num { font-size: 17px; font-weight: 700; letter-spacing: .02em; color: var(--ink); font-variant-numeric: tabular-nums; }
.pay-instr { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); background: color-mix(in srgb, var(--primary) 5%, transparent); border-radius: var(--r); padding: 10px 12px; margin-bottom: 12px; }
.pay-instr svg { flex: none; margin-top: 1px; color: var(--primary); }

/* ============ Toggle switch ============ */
.switch { position: relative; display: inline-flex; align-items: center; cursor: pointer; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .track { width: 40px; height: 23px; border-radius: 99px; background: var(--border-strong, #cbd0d8); transition: background .18s var(--ease); flex: none; position: relative; }
.switch .track::after { content: ''; position: absolute; top: 2px; left: 2px; width: 19px; height: 19px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.28); transition: transform .18s var(--ease); }
.switch input:checked + .track { background: var(--success); }
.switch input:checked + .track::after { transform: translateX(17px); }
.switch .sw-label { margin-left: 10px; font-size: 13px; font-weight: 600; color: var(--ink-2); }

/* ============ Payment gateway settings cards ============ */
.pm-card { border: 1px solid var(--border); border-radius: var(--r); margin-bottom: 14px; overflow: hidden; background: var(--surface); }
.pm-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 16px; background: var(--surface-2); }
.pm-title { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 14px; color: var(--ink); }
.pm-dot { width: 11px; height: 11px; border-radius: 50%; flex: none; }
.pm-body { padding: 16px; border-top: 1px solid var(--border); }
.pm-tag { font-size: 10.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 2px 7px; border-radius: 5px; }
.pm-tag.manual { color: #7a5b00; background: #FFF4D6; }
.pm-tag.online { color: #0B7E56; background: #E4F5EE; }

/* ============ Day picker ============ */
.day-picker { display: flex; gap: 8px; flex-wrap: wrap; }
.day-chip { position: relative; cursor: pointer; }
.day-chip input { position: absolute; opacity: 0; }
.day-chip span { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; height: 38px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: var(--r-sm); font-size: 13px; font-weight: 550; color: var(--ink-2); transition: all .15s var(--ease); }
.day-chip:hover span { border-color: #C3C7D1; }
.day-chip input:checked + span { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============ Segmented ============ */
.segment { display: inline-flex; background: var(--surface-3); border-radius: var(--r-sm); padding: 3px; gap: 2px; }
.segment button { border: none; background: transparent; padding: 7px 15px; font-size: 12.5px; font-weight: 550; color: var(--muted); border-radius: var(--r-xs); transition: all .15s var(--ease); }
.segment button.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }
.seg-att button { min-width: 74px; }
.seg-att button.active.present { background: var(--success); color: #fff; }
.seg-att button.active.absent { background: var(--danger); color: #fff; }
.seg-att button.active.late { background: var(--warning); color: #fff; }
.seg-att button.active.leave { background: var(--info); color: #fff; }