.ui-button{--button-padding-y: 8px;--button-padding-x: 16px;--button-bg: var(--color-primary);--button-color: var(--color-text-inverted);--button-border: transparent;--button-bg-hover: var(--color-primary-hover);display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);border-radius:var(--radius-md);border:1px solid var(--button-border);background:var(--button-bg);color:var(--button-color);padding:var(--button-padding-y) var(--button-padding-x);font-weight:500;font-size:var(--font-size-base);cursor:pointer;transition:background .12s ease,color .12s ease,border-color .12s ease,box-shadow .12s ease;white-space:nowrap}.ui-button:hover:not(:disabled){background:var(--button-bg-hover)}.ui-button:disabled{cursor:not-allowed;opacity:.6}.ui-button--full{width:100%}.ui-button--sm{--button-padding-y: 6px;--button-padding-x: 12px;font-size:var(--font-size-sm);border-radius:var(--radius-sm)}.ui-button--lg{--button-padding-y: 12px;--button-padding-x: 20px;font-size:var(--font-size-md)}.ui-button--secondary{--button-bg: var(--color-surface);--button-color: var(--color-text);--button-border: var(--color-border-strong);--button-bg-hover: var(--color-surface-muted)}.ui-button--ghost{--button-bg: transparent;--button-color: var(--color-text);--button-border: transparent;--button-bg-hover: var(--color-surface-muted)}.ui-button--subtle{--button-bg: var(--color-surface-muted);--button-color: var(--color-text);--button-border: var(--color-border);--button-bg-hover: var(--color-border)}.ui-button--danger{--button-bg: var(--color-danger);--button-color: var(--color-text-inverted);--button-border: transparent;--button-bg-hover: var(--color-danger-hover)}.ui-button__icon{display:inline-flex;align-items:center}.ui-button__spinner{width:14px;height:14px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:ui-button-spin .7s linear infinite}@keyframes ui-button-spin{to{transform:rotate(360deg)}}.ui-field{display:flex;flex-direction:column;gap:var(--space-2)}.ui-field--full{width:100%}.ui-field__label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text)}.ui-field__required{color:var(--color-danger)}.ui-field__hint{font-size:var(--font-size-xs);color:var(--color-text-subtle)}.ui-field__error{font-size:var(--font-size-xs);color:var(--color-danger)}.ui-input{font:inherit;width:100%;background:var(--color-surface);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);padding:9px 12px;color:var(--color-text);transition:border-color .12s ease,box-shadow .12s ease}.ui-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-focus-ring)}.ui-input:disabled{background:var(--color-surface-muted);cursor:not-allowed}.ui-input.is-invalid{border-color:var(--color-danger);box-shadow:0 0 0 3px var(--color-danger-soft)}.ui-textarea{resize:vertical;min-height:96px}.ui-select{background-image:linear-gradient(45deg,transparent 50%,var(--color-text-subtle) 50%),linear-gradient(135deg,var(--color-text-subtle) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:32px}.ui-checkbox,.ui-switch{display:inline-flex;align-items:center;gap:var(--space-2);cursor:pointer;font-size:var(--font-size-sm)}.ui-checkbox input,.ui-switch input{accent-color:var(--color-primary)}.ui-switch__track{position:relative;width:32px;height:18px;background:var(--color-border-strong);border-radius:var(--radius-pill);transition:background .15s ease}.ui-switch__thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:var(--color-surface);box-shadow:0 1px 2px #0f172a33;transition:transform .15s ease}.ui-switch input{position:absolute;opacity:0;pointer-events:none}.ui-switch input:checked+.ui-switch__track{background:var(--color-primary)}.ui-switch input:checked+.ui-switch__track .ui-switch__thumb{transform:translate(14px)}.ui-switch input:focus-visible+.ui-switch__track{box-shadow:0 0 0 3px var(--color-focus-ring)}.ui-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;overflow:hidden}.ui-card__header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-3);padding:var(--space-5) var(--space-5) 0}.ui-card__heading{display:flex;flex-direction:column;gap:var(--space-1)}.ui-card__title{font-size:var(--font-size-lg);font-weight:600}.ui-card__description{margin:0;color:var(--color-text-muted);font-size:var(--font-size-sm)}.ui-card__actions{display:flex;align-items:center;gap:var(--space-2);flex-wrap:wrap}.ui-card__body{padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-4)}.ui-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:var(--space-5);z-index:1000;animation:ui-modal-fade .12s ease-out}@keyframes ui-modal-fade{0%{opacity:0}to{opacity:1}}.ui-modal{background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:560px;display:flex;flex-direction:column;max-height:calc(100vh - var(--space-7) * 2)}.ui-modal--sm{max-width:420px}.ui-modal--lg{max-width:720px}.ui-modal__header{display:flex;align-items:flex-start;justify-content:space-between;padding:var(--space-5) var(--space-5) 0;gap:var(--space-3)}.ui-modal__heading{display:flex;flex-direction:column;gap:var(--space-1)}.ui-modal__title{font-size:var(--font-size-xl);font-weight:600}.ui-modal__description{margin:0;font-size:var(--font-size-sm);color:var(--color-text-muted)}.ui-modal__close{background:transparent;border:none;font-size:28px;line-height:1;color:var(--color-text-subtle);cursor:pointer;padding:4px;border-radius:var(--radius-sm)}.ui-modal__close:hover{background:var(--color-surface-muted);color:var(--color-text)}.ui-modal__body{padding:var(--space-5);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-4)}.ui-modal__footer{position:sticky;bottom:0;display:flex;justify-content:flex-end;gap:var(--space-2);padding:var(--space-4) var(--space-5);border-top:1px solid var(--color-border);background:var(--color-surface)}.ui-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:var(--radius-pill);font-size:var(--font-size-xs);font-weight:600;letter-spacing:.01em;background:var(--color-surface-muted);color:var(--color-text);border:1px solid var(--color-border)}.ui-badge--primary{background:var(--color-primary-soft);color:var(--color-primary-active);border-color:var(--color-primary-soft)}.ui-badge--success{background:var(--color-success-soft);color:var(--color-success);border-color:var(--color-success-soft)}.ui-badge--warning{background:var(--color-warning-soft);color:var(--color-warning);border-color:var(--color-warning-soft)}.ui-badge--danger{background:var(--color-danger-soft);color:var(--color-danger);border-color:var(--color-danger-soft)}.ui-badge--info{background:var(--color-info-soft);color:var(--color-info);border-color:var(--color-info-soft)}.ui-tabs{display:inline-flex;align-items:center;gap:var(--space-1);padding:4px;background:var(--color-surface-muted);border-radius:var(--radius-md);border:1px solid var(--color-border)}.ui-tabs__item{display:inline-flex;align-items:center;gap:var(--space-2);padding:6px 12px;background:transparent;border:none;color:var(--color-text-muted);border-radius:var(--radius-sm);font-weight:500;font-size:var(--font-size-sm);cursor:pointer;transition:color .12s ease,background .12s ease}.ui-tabs__item:hover{color:var(--color-text)}.ui-tabs__item.is-active{color:var(--color-text);background:var(--color-surface);box-shadow:var(--shadow-sm)}.ui-tabs__badge{display:inline-flex;align-items:center;justify-content:center;font-size:var(--font-size-xs);background:var(--color-primary-soft);color:var(--color-primary-active);border-radius:var(--radius-pill);padding:0 6px;height:18px}.ui-tooltip{position:relative;display:inline-flex}.ui-tooltip__bubble{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%);background:#0f172aeb;color:#fff;font-size:var(--font-size-xs);padding:4px 8px;border-radius:var(--radius-sm);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .12s ease;z-index:1100}.ui-tooltip:hover .ui-tooltip__bubble,.ui-tooltip:focus-within .ui-tooltip__bubble{opacity:1}.ui-spinner{display:inline-block;border:2px solid var(--color-border-strong);border-right-color:var(--color-primary);border-radius:50%;animation:ui-spinner .7s linear infinite}@keyframes ui-spinner{to{transform:rotate(360deg)}}.ui-skeleton{display:inline-block;background:linear-gradient(90deg,var(--color-surface-muted) 0%,rgba(0,0,0,.05) 50%,var(--color-surface-muted) 100%);background-size:200% 100%;animation:ui-skeleton 1.4s ease-in-out infinite}@keyframes ui-skeleton{0%{background-position:-100% 0}to{background-position:100% 0}}.ui-toast-viewport{position:fixed;top:var(--space-5);right:var(--space-5);display:flex;flex-direction:column;gap:var(--space-2);z-index:1100;max-width:360px}.ui-toast{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-left-width:4px;border-radius:var(--radius-md);box-shadow:var(--shadow-md);animation:ui-toast-in .16s ease-out}@keyframes ui-toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.ui-toast--success{border-left-color:var(--color-success)}.ui-toast--error{border-left-color:var(--color-danger)}.ui-toast--info{border-left-color:var(--color-info)}.ui-toast__body{flex:1;display:flex;flex-direction:column;gap:4px}.ui-toast__title{font-weight:600}.ui-toast__description{color:var(--color-text-muted);font-size:var(--font-size-sm)}.ui-toast__close{background:transparent;border:none;color:var(--color-text-subtle);font-size:22px;cursor:pointer;line-height:1}.ui-page-header{display:flex;flex-direction:column;gap:var(--space-3)}.ui-page-header__breadcrumbs{display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-subtle);font-size:var(--font-size-sm)}.ui-page-header__crumb{display:inline-flex;align-items:center;gap:var(--space-2)}.ui-page-header__crumb a{color:var(--color-text-muted)}.ui-page-header__crumb-sep{color:var(--color-border-strong)}.ui-page-header__row{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4);flex-wrap:wrap}.ui-page-header__content{display:flex;flex-direction:column;gap:var(--space-1);min-width:0}.ui-page-header__title{font-size:var(--font-size-2xl);font-weight:700;letter-spacing:-.01em}.ui-page-header__description{margin:0;color:var(--color-text-muted);max-width:70ch}.ui-page-header__actions{display:flex;align-items:center;gap:var(--space-2);flex-wrap:wrap}.ui-pagination{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap;padding:var(--space-3) 0}.ui-pagination__btn{background:var(--color-surface);border:1px solid var(--color-border-strong);color:var(--color-text);padding:6px 12px;border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-size-sm);font-weight:500}.ui-pagination__btn:hover:not(:disabled){background:var(--color-surface-muted)}.ui-pagination__btn:disabled{cursor:not-allowed;opacity:.5}.ui-pagination__indicator{font-size:var(--font-size-sm)}.ui-pagination__total{margin-left:auto;font-size:var(--font-size-xs)}.ui-pagination--simple{padding:var(--space-3) 0;font-size:var(--font-size-xs)}.ui-feedback{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--space-2);padding:var(--space-7) var(--space-5);border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);color:var(--color-text);background:var(--color-surface)}.ui-feedback--error{border-color:var(--color-danger-soft);background:var(--color-danger-soft);color:var(--color-text)}.ui-feedback__icon{font-size:28px;color:var(--color-text-subtle)}.ui-feedback--error .ui-feedback__icon{color:var(--color-danger)}.ui-feedback__title{font-size:var(--font-size-lg);font-weight:600}.ui-feedback__description{color:var(--color-text-muted);max-width:60ch;font-size:var(--font-size-sm)}.ui-feedback__action{margin-top:var(--space-2)}.ui-table-wrapper{width:100%;overflow-x:auto;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface)}.ui-table-wrapper.is-loading{opacity:.6;pointer-events:none}.ui-table{width:100%;border-collapse:collapse;font-size:var(--font-size-sm)}.ui-table th,.ui-table td{padding:12px 16px;border-bottom:1px solid var(--color-border);vertical-align:middle}.ui-table thead th{background:var(--color-surface-muted);color:var(--color-text-muted);font-weight:600;font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.04em}.ui-table tbody tr:hover{background:var(--color-surface-muted)}.ui-table tbody tr:last-child td{border-bottom:none}.ui-table__empty{text-align:center;color:var(--color-text-muted);padding:var(--space-7)}.ui-table__actions-col{width:1%}.ui-table__actions{width:1%;white-space:nowrap;text-align:right}.ui-stat{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border)}.ui-stat__label{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted)}.ui-stat__value{font-size:var(--font-size-2xl);font-weight:700;letter-spacing:-.01em}.ui-stat__hint{font-size:var(--font-size-xs);color:var(--color-text-subtle)}.ui-stat--primary .ui-stat__value{color:var(--color-primary-active)}.ui-stat--success .ui-stat__value{color:var(--color-success)}.ui-stat--warning .ui-stat__value{color:var(--color-warning)}.ui-stat--danger .ui-stat__value{color:var(--color-danger)}.ui-toolbar{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap}.ui-toolbar--between{justify-content:space-between}.ui-toolbar--start{justify-content:flex-start}.ui-toolbar--end{justify-content:flex-end}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-6);background:radial-gradient(circle at 20% 20%,#f6efe1 0%,var(--color-bg) 60%)}.login__panel{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-7);width:100%;max-width:420px;box-shadow:var(--shadow-md);border:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--space-4)}.login__brand{display:flex;align-items:center;gap:var(--space-3)}.login__brand-mark{width:40px;height:40px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-primary),#5b8def);display:inline-flex;align-items:center;justify-content:center;color:var(--color-text-inverted);font-weight:700;font-size:var(--font-size-lg)}.login__title{font-size:var(--font-size-2xl);font-weight:700;margin:var(--space-3) 0 0}.login__form{display:flex;flex-direction:column;gap:var(--space-4);margin-top:var(--space-3)}.login__error{background:var(--color-danger-soft);color:var(--color-danger);padding:8px 12px;border-radius:var(--radius-md);font-size:var(--font-size-sm)}.login__hint{margin-top:var(--space-2);font-size:var(--font-size-xs);color:var(--color-text-subtle)}.auth-loading{display:flex;align-items:center;justify-content:center;min-height:100vh}.dashboard__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-3)}.dashboard__skeleton{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface)}.dashboard__shortcuts{display:flex;flex-direction:column;gap:var(--space-3)}.dashboard__shortcuts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-3)}.dashboard__shortcut{display:flex;flex-direction:column;gap:4px;padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);text-decoration:none;transition:border-color .12s ease,transform .12s ease}.dashboard__shortcut:hover{border-color:var(--color-primary);text-decoration:none;transform:translateY(-1px)}.link-button{background:transparent;border:none;color:var(--color-link);cursor:pointer;font:inherit}.link-button:hover{text-decoration:underline}.users__skeleton{display:flex;flex-direction:column;gap:var(--space-2)}.user-row{display:flex;flex-direction:column;gap:2px}.users__search-field{flex:1 1 240px;max-width:380px}.users__role-field{flex:0 0 200px}.row-actions{display:inline-flex;align-items:center;gap:var(--space-2)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4)}.task-row{display:flex;flex-direction:column;gap:4px;max-width:540px}.task-row__description{margin:0;font-size:var(--font-size-sm);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}.form-grid__full{grid-column:1 / -1}.submissions__toolbar{align-items:center}.submissions__list{display:flex;flex-direction:column;gap:var(--space-3)}.submission{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-3);background:var(--color-surface)}.submission__header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap}.submission__title{font-size:var(--font-size-lg);font-weight:600}.submission__meta{display:flex;flex-wrap:wrap;gap:var(--space-2);align-items:center;margin-top:var(--space-2)}.submission__actions{flex-wrap:wrap}.submission__body{display:flex;flex-direction:column;gap:var(--space-2)}.submission__text{background:var(--color-surface-muted);padding:var(--space-3);border-radius:var(--radius-md);white-space:pre-wrap;word-wrap:break-word;font-family:var(--font-mono);font-size:var(--font-size-sm);margin:0}.submission__comment{background:var(--color-warning-soft);padding:var(--space-3);border-radius:var(--radius-md);margin:0}.attendance__list{display:flex;flex-direction:column;gap:var(--space-2)}.attendance__row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface)}.attendance__buttons{display:flex;align-items:center;gap:var(--space-2);flex-wrap:wrap}.shell{display:flex;min-height:100vh;width:100%;background:var(--color-bg)}.shell__sidebar{width:var(--layout-sidebar-width);background:var(--color-surface);border-right:1px solid var(--color-border);padding:var(--space-5) var(--space-3);display:flex;flex-direction:column;gap:var(--space-5);position:sticky;top:0;height:100vh;flex-shrink:0;overflow-y:auto}.shell__brand{display:flex;align-items:center;gap:var(--space-3);padding:0 var(--space-2)}.shell__brand-mark{width:36px;height:36px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-primary),#5b8def);color:var(--color-text-inverted);display:inline-flex;align-items:center;justify-content:center;font-weight:700}.shell__brand-text{display:flex;flex-direction:column}.shell__brand-sub{color:var(--color-text-subtle);font-size:var(--font-size-xs)}.shell__nav{display:flex;flex-direction:column;gap:2px}.shell__nav-link{display:flex;align-items:center;gap:var(--space-3);padding:8px 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