.bottom-tab-nav{position:fixed;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);background-color:var(--color-surface);border-top:1px solid var(--color-border);box-shadow:0 -4px 12px rgba(15,23,42,.06);z-index:var(--z-header);padding-bottom:env(safe-area-inset-bottom,0px)}.bottom-tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:var(--space-2) var(--space-1);min-height:56px;background:transparent;border:none;text-decoration:none;color:var(--color-text-muted);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);cursor:pointer;transition:color var(--transition-fast)}.bottom-tab-item:active{background-color:var(--color-surface-alt)}.bottom-tab-item.is-active{color:var(--color-primary)}.bottom-tab-icon{display:inline-flex;align-items:center;justify-content:center}.bottom-tab-label{line-height:1}@media(min-width:1024px){.bottom-tab-nav{display:none}}.bottom-tab-sheet-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:var(--color-overlay);z-index:var(--z-overlay)}.bottom-tab-sheet{position:fixed;bottom:0;left:0;right:0;background-color:var(--color-surface);border-top-left-radius:var(--radius-xl);border-top-right-radius:var(--radius-xl);box-shadow:0 -8px 24px rgba(15,23,42,.15);z-index:var(--z-modal);padding-bottom:calc(env(safe-area-inset-bottom,0px) + var(--space-4));max-height:80vh;overflow-y:auto;animation:bottom-sheet-up .18s ease-out}@keyframes bottom-sheet-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.bottom-tab-sheet__head{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);border-bottom:1px solid var(--color-border)}.bottom-tab-sheet__title{font-size:var(--font-size-md);font-weight:var(--font-weight-bold);color:var(--color-text)}.bottom-tab-sheet__close{background:transparent;border:none;color:var(--color-text-muted);cursor:pointer;padding:var(--space-1);display:inline-flex;align-items:center;justify-content:center;min-height:var(--tap-target-min);min-width:var(--tap-target-min);border-radius:var(--radius-sm)}.bottom-tab-sheet__close:hover{background-color:var(--color-surface-alt);color:var(--color-text)}.bottom-tab-sheet__body{display:flex;flex-direction:column}.sheet-link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);min-height:var(--tap-target-min);text-decoration:none;color:var(--color-text);font-size:var(--font-size-md);font-weight:var(--font-weight-medium);background:none;border:none;text-align:left;cursor:pointer;border-bottom:1px solid var(--color-surface-alt)}.sheet-link:hover,.sheet-link:active{background-color:var(--color-surface-alt)}.sheet-link--admin{color:var(--color-primary)}.sheet-link--logout{color:var(--color-danger);border-bottom:none}.sheet-divider{height:8px;background-color:var(--color-surface-alt);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}.sheet-user{padding:var(--space-3) var(--space-4);background-color:var(--color-surface-alt)}.sheet-user__email{font-size:var(--font-size-sm);color:var(--color-text-muted);word-break:break-all}.offline-banner{position:fixed;top:0;left:0;right:0;z-index:var(--z-toast);display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);padding-top:calc(var(--space-1) + env(safe-area-inset-top,0px));background-color:var(--color-warning);color:var(--color-text-on-dark);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);box-shadow:var(--shadow-sm)}.ui-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:var(--tap-target-min);padding:var(--space-2) var(--space-4);font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);line-height:1;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color var(--transition-base),border-color var(--transition-base),color var(--transition-base),box-shadow var(--transition-base);text-decoration:none}.ui-btn:focus-visible{outline:none;box-shadow:var(--shadow-focus)}.ui-btn:disabled,.ui-btn[aria-disabled=true]{cursor:not-allowed;opacity:.55}.ui-btn--primary{background-color:var(--color-primary);color:var(--color-primary-on)}.ui-btn--primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.ui-btn--primary:active:not(:disabled){background-color:var(--color-primary-active)}.ui-btn--secondary{background-color:var(--color-surface);color:var(--color-text);border-color:var(--color-border-strong)}.ui-btn--secondary:hover:not(:disabled){background-color:var(--color-surface-alt)}.ui-btn--danger{background-color:var(--color-danger);color:var(--color-text-on-dark)}.ui-btn--danger:hover:not(:disabled){background-color:var(--color-danger-hover)}.ui-btn--accent{background-color:var(--color-accent);color:var(--color-text-on-dark)}.ui-btn--accent:hover:not(:disabled){background-color:var(--color-accent-hover)}.ui-btn--ghost{background:transparent;color:var(--color-text-secondary)}.ui-btn--ghost:hover:not(:disabled){background-color:var(--color-surface-alt);color:var(--color-text)}.ui-btn--sm{min-height:36px;padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm)}.ui-btn--lg{min-height:52px;padding:var(--space-3) var(--space-6);font-size:var(--font-size-lg)}.ui-btn--block{width:100%}.ui-btn--icon-only{padding:0;width:var(--tap-target-min);min-height:var(--tap-target-min)}.ui-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-5);box-shadow:var(--shadow-sm)}.ui-card--flat{box-shadow:none}.ui-card--padded{padding:var(--space-6)}.ui-card__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-4)}.ui-card__title{margin:0;font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text)}.ui-page-header{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) 0;margin-bottom:var(--space-4);border-bottom:1px solid var(--color-border)}.ui-page-header__back{display:inline-flex;align-items:center;justify-content:center;width:var(--tap-target-min);height:var(--tap-target-min);margin-left:calc(var(--space-3) * -1);border-radius:var(--radius-md);color:var(--color-text-secondary);background:transparent;border:none;cursor:pointer;text-decoration:none}.ui-page-header__back:hover{background-color:var(--color-surface-alt);color:var(--color-text)}.ui-page-header__title-wrap{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.ui-page-header__title{margin:0;font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text);line-height:var(--line-height-tight);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ui-page-header__subtitle{font-size:var(--font-size-sm);color:var(--color-text-muted)}.ui-page-header__actions{display:flex;gap:var(--space-2);flex-shrink:0}@media(min-width:640px){.ui-page-header__title{font-size:var(--font-size-2xl)}}.ui-badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:2px var(--space-2);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);line-height:1.4}.ui-badge--neutral{background-color:var(--color-surface-alt);color:var(--color-text-secondary)}.ui-badge--primary{background-color:var(--color-primary-soft);color:var(--color-primary-active)}.ui-badge--success{background-color:var(--color-success-soft);color:var(--color-success)}.ui-badge--warning{background-color:var(--color-warning-soft);color:var(--color-warning)}.ui-badge--danger{background-color:var(--color-danger-soft);color:var(--color-danger)}.ui-badge--accent{background-color:var(--color-accent-soft);color:var(--color-accent-hover)}.ui-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-10) var(--space-4);color:var(--color-text-muted)}.ui-empty__icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:var(--radius-full);background-color:var(--color-surface-alt);color:var(--color-text-muted);margin-bottom:var(--space-4)}.ui-empty__title{margin:0 0 var(--space-2) 0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary)}.ui-empty__desc{margin:0 0 var(--space-4) 0;font-size:var(--font-size-sm);color:var(--color-text-muted);max-width:320px}.ui-field{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-4)}.ui-field__label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.ui-field__hint{font-size:var(--font-size-xs);color:var(--color-text-muted)}.ui-field__error{font-size:var(--font-size-xs);color:var(--color-danger)}.ui-stack{display:flex;flex-direction:column;gap:var(--space-4)}.ui-stack--sm{gap:var(--space-2)}.ui-stack--lg{gap:var(--space-6)}.ui-error{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-10) var(--space-4);color:var(--color-text-muted)}.ui-error--compact{padding:var(--space-6) var(--space-4)}.ui-error__icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:var(--radius-full);background-color:var(--color-danger-soft);color:var(--color-danger);margin-bottom:var(--space-4)}.ui-error__title{margin:0 0 var(--space-2) 0;font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary)}.ui-error__desc{margin:0 0 var(--space-4) 0;font-size:var(--font-size-sm);color:var(--color-text-muted);max-width:320px}.ui-error__details{margin-top:var(--space-4);width:100%;max-width:480px;font-size:var(--font-size-xs);color:var(--color-text-muted);text-align:left}.ui-error__details summary{cursor:pointer;text-align:center;min-height:var(--tap-target-min);display:flex;align-items:center;justify-content:center}.ui-error__details pre{margin:var(--space-2) 0 0;padding:var(--space-3);background-color:var(--color-surface-alt);border-radius:var(--radius-md);white-space:pre-wrap;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.spinner-wrap{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:.9rem}.spinner-wrap--block{display:flex;justify-content:center;align-items:center;width:100%;min-height:120px;padding:var(--space-6) var(--space-4)}.spinner{display:inline-block;border-radius:50%;border-style:solid;border-color:var(--color-border);border-top-color:var(--color-primary);animation:spinner-rotate .8s linear infinite;flex-shrink:0}.spinner--sm{width:14px;height:14px;border-width:2px}.spinner--md{width:22px;height:22px;border-width:2.5px}.spinner--lg{width:36px;height:36px;border-width:3px}.spinner-label{color:var(--color-text-muted);font-size:.9rem}@keyframes spinner-rotate{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.spinner{animation-duration:2s}}.ui-confirm{position:fixed;top:0;right:0;bottom:0;left:0;z-index:var(--z-modal);display:flex;align-items:flex-end;justify-content:center;background-color:var(--color-overlay);padding:0;animation:ui-confirm-fade var(--transition-fast)}.ui-confirm__panel{width:100%;max-width:100%;background-color:var(--color-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;padding:var(--space-6) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom,0px));box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;text-align:center;animation:ui-confirm-slide-up var(--transition-base)}.ui-confirm__icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius-full);margin-bottom:var(--space-3)}.ui-confirm__panel--danger .ui-confirm__icon{background-color:var(--color-danger-soft);color:var(--color-danger)}.ui-confirm__panel--primary .ui-confirm__icon{background-color:var(--color-primary-soft);color:var(--color-primary)}.ui-confirm__title{margin:0;font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text);line-height:var(--line-height-tight);overflow-wrap:anywhere}.ui-confirm__desc{margin-top:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);white-space:pre-line;overflow-wrap:anywhere;max-width:100%}.ui-confirm__desc p{margin:0 0 var(--space-2) 0}.ui-confirm__desc p:last-child{margin-bottom:0}.ui-confirm__desc ul{margin:var(--space-2) 0 0;padding-left:var(--space-5);text-align:left}.ui-confirm__desc .ui-confirm__note{color:var(--color-text-muted);font-size:var(--font-size-xs)}.ui-confirm__desc .ui-confirm__warn{color:var(--color-danger);font-weight:var(--font-weight-semibold)}.ui-confirm__actions{display:flex;flex-direction:column-reverse;gap:var(--space-2);width:100%;margin-top:var(--space-5)}.ui-confirm__actions .ui-btn{width:100%}@media(min-width:640px){.ui-confirm{align-items:center;padding:var(--space-6)}.ui-confirm__panel{max-width:420px;border-radius:var(--radius-xl);padding:var(--space-8) var(--space-6) var(--space-6);animation:ui-confirm-pop var(--transition-base)}.ui-confirm__actions{flex-direction:row;justify-content:flex-end}.ui-confirm__actions .ui-btn{width:auto;min-width:120px}}@keyframes ui-confirm-fade{0%{opacity:0}to{opacity:1}}@keyframes ui-confirm-slide-up{0%{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes ui-confirm-pop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}@media(prefers-reduced-motion:reduce){.ui-confirm,.ui-confirm__panel{animation:none}}.app-container{display:flex;flex-direction:column;min-height:100vh;background-color:var(--color-bg)}.app-main{flex:1;width:100%;max-width:var(--container-max);margin:0 auto;padding:var(--space-4);padding-bottom:calc(72px + env(safe-area-inset-bottom,0px));box-sizing:border-box}@media(min-width:1024px){.app-main{max-width:var(--container-max-wide);padding:var(--space-8);padding-bottom:var(--space-8)}}.app-header{height:var(--header-height);background-color:var(--color-header);color:var(--color-header-on);display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-4);position:sticky;top:0;z-index:var(--z-header);box-shadow:var(--shadow-sm)}.header-logo a,.header-logo span{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);text-decoration:none;color:var(--color-header-on);white-space:nowrap}.hamburger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:var(--space-2);z-index:calc(var(--z-modal) + 1)}.hamburger span{display:block;width:24px;height:2px;background-color:var(--color-header-on);transition:all var(--transition-base)}.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger.open span:nth-child(2){opacity:0}.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-6px)}.nav-menu{display:none;margin:0;list-style:none;box-sizing:border-box}.nav-link{text-decoration:none;color:var(--color-on-dark-soft);font-size:var(--font-size-md);font-weight:var(--font-weight-medium);padding:var(--space-4) 0;width:100%;border-bottom:1px solid var(--color-on-dark-border);transition:color var(--transition-base)}.nav-link:hover,.nav-link.active{color:var(--color-header-on)}.nav-link-admin{color:var(--color-on-dark-accent)}.nav-user-section{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-4);margin-top:auto;padding-top:var(--space-6);padding-bottom:var(--space-6);border-top:1px solid var(--color-on-dark-border)}.user-email{font-size:var(--font-size-sm);color:var(--color-header-on);font-weight:var(--font-weight-bold);word-break:break-all}.nav-profile-link{display:flex;align-items:center;gap:var(--space-2);color:var(--color-on-dark-soft);text-decoration:none;font-size:var(--font-size-md);width:100%;padding:var(--space-2) 0;transition:color var(--transition-base)}.nav-profile-link:hover{color:var(--color-header-on)}.logout-button{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;background:transparent;border:1px solid var(--color-on-dark-border-strong);color:var(--color-header-on);padding:var(--space-3);border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-size-sm);white-space:nowrap;transition:background var(--transition-base)}.logout-button:hover{background:var(--color-header-overlay)}.nav-overlay{display:none}@media(min-width:1024px){.app-header{padding:0 var(--space-6)}.hamburger,.nav-overlay{display:none}.nav-menu{display:flex;position:static;flex-direction:row;align-items:center;width:auto;height:auto;background:transparent;box-shadow:none;padding:0;gap:var(--space-6);overflow:visible}.nav-link{padding:0;border-bottom:none;font-size:var(--font-size-sm);width:auto}.nav-user-section{flex-direction:row;align-items:center;gap:var(--space-4);margin-top:0;margin-left:var(--space-6);padding:0 0 0 var(--space-6);border-top:none;border-left:1px solid var(--color-on-dark-border)}.user-email{font-size:var(--font-size-xs);font-weight:var(--font-weight-regular);color:var(--color-on-dark-soft)}.nav-profile-link{width:auto;padding:0;font-size:var(--font-size-sm)}.logout-button{width:auto;padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm);border-color:var(--color-on-dark-border-strong)}}.impersonation-banner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap;background-color:var(--color-accent);color:var(--color-on-dark);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:600}.impersonation-banner strong{font-weight:700}.impersonation-banner button{flex-shrink:0;background-color:var(--color-header-overlay-strong);color:var(--color-on-dark);border:1px solid var(--color-on-dark-border-strong);border-radius:var(--radius-md);padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;min-height:var(--tap-target-min)}.impersonation-banner button:hover{background-color:var(--color-header-overlay-hover)}.loading-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--color-surface-translucent);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:9999;backdrop-filter:blur(2px)}.loading-spinner{width:50px;height:50px;border:5px solid var(--color-surface-alt);border-top:5px solid var(--color-header);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:15px}.loading-text{color:var(--color-header);font-weight:700;font-size:1.1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-active: #1e40af;--color-primary-soft: #dbeafe;--color-primary-on: #ffffff;--color-header: #003366;--color-header-on: #ffffff;--color-accent: #f97316;--color-accent-hover: #ea580c;--color-accent-soft: #ffedd5;--color-text: #0f172a;--color-text-secondary: #334155;--color-text-muted: #64748b;--color-text-on-dark: #ffffff;--color-bg: #f8fafc;--color-surface: #ffffff;--color-surface-alt: #f1f5f9;--color-overlay: rgba(15, 23, 42, .5);--color-border: #e2e8f0;--color-border-strong: #cbd5e1;--color-on-dark: #ffffff;--color-on-dark-soft: rgba(255, 255, 255, .85);--color-on-dark-muted: rgba(255, 255, 255, .6);--color-on-dark-faint: rgba(255, 255, 255, .4);--color-on-dark-border: rgba(255, 255, 255, .2);--color-on-dark-border-strong: rgba(255, 255, 255, .5);--color-on-dark-accent: #e0aaff;--color-header-overlay: rgba(255, 255, 255, .1);--color-header-overlay-strong: rgba(255, 255, 255, .2);--color-header-overlay-hover: rgba(255, 255, 255, .3);--color-header-translucent: rgba(0, 51, 102, .9);--color-header-deep-translucent: rgba(0, 30, 60, .85);--color-shade: rgba(0, 0, 0, .2);--color-surface-translucent: rgba(255, 255, 255, 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18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-base: 1.5;--line-height-relaxed: 1.65;--header-height: 56px;--tap-target-min: 44px;--container-max: 720px;--container-max-wide: 1024px;--z-header: 100;--z-overlay: 900;--z-modal: 1000;--z-toast: 1100;--transition-fast: .15s ease;--transition-base: .2s ease}@media(min-width:640px){:root{--header-height: 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