.btn{font-weight:600;font-size:var(--text-15);cursor:pointer;transition:all .2s var(--ease-out-expo);letter-spacing:-.01em;border:1px solid transparent;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 20px;display:inline-flex;position:relative;overflow:hidden}.btn--primary{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);color:var(--text-on-primary);box-shadow:0 4px 12px var(--primary-alpha-35);border:1px solid var(--border-on-primary)}.btn--primary:hover{box-shadow:0 8px 24px var(--primary-alpha-35);background:linear-gradient(135deg, var(--primary-strong) 0%, var(--primary) 100%);transform:translateY(-2px)}.btn--primary:active{box-shadow:0 2px 8px var(--primary-alpha-35);transform:translateY(0)}.btn--small{font-size:var(--text-13);border-radius:8px;min-height:44px;padding:10px 14px}.btn--secondary{background:var(--surface);color:var(--text);border-color:var(--border);box-shadow:var(--shadow-strong)}.btn--secondary:hover{border-color:var(--primary-border-35);background:var(--surface-hover);box-shadow:0 4px 12px var(--shadow-strong);transform:translateY(-2px)}.btn--ghost{color:var(--muted);background:0 0;border-color:transparent}.btn--ghost:hover{background:var(--surface-bg-8);color:var(--text)}.btn--danger{background:var(--error);color:var(--text-on-primary);border-color:var(--error)}.btn--danger:hover{filter:brightness(.9)}.btn:disabled{opacity:.6;cursor:not-allowed;filter:grayscale();box-shadow:none!important;transform:none!important}.btn:focus-visible{box-shadow:0 0 0 4px var(--primary-alpha-20);outline:none}.btn--full{width:100%}.confirm-button{display:inline-flex}.confirm-button__prompt{align-items:center;gap:var(--space-half);display:inline-flex}.confirm-button__trigger{color:var(--muted)}.page{width:min(var(--content-max), 94vw);gap:var(--space-4);padding-bottom:var(--space-5);animation:fade-in var(--duration-medium) ease;flex-direction:column;margin:0 auto;display:flex}.stack{gap:var(--stack-gap,var(--space-2));flex-direction:column;display:flex}.cluster{align-items:center;gap:var(--cluster-gap,var(--space-2));flex-wrap:wrap;display:flex}.card{padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);border:1px solid var(--surface-glass-border);background:var(--surface-glass);-webkit-backdrop-filter:blur(var(--backdrop-blur));box-shadow:var(--shadow);gap:var(--space-2);transition:transform .2s var(--ease-out-expo), box-shadow .2s var(--ease-out-expo);flex-direction:column;display:flex}:is(.feature-card,.book-card,.recipe-card,.flow__step){padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);border:1px solid var(--surface-glass-border);background:var(--surface-glass);-webkit-backdrop-filter:blur(var(--backdrop-blur));box-shadow:var(--shadow);gap:var(--space-2);transition:transform .2s var(--ease-out-expo), box-shadow .2s var(--ease-out-expo);flex-direction:column;display:flex}.card-link{cursor:pointer;transition:all .2s var(--ease-out-expo);z-index:0;isolation:isolate;position:relative}.card-link:before{content:"";border-radius:inherit;background:var(--card-glow);opacity:0;transition:opacity .2s var(--ease-out-expo);z-index:-1;pointer-events:none;position:absolute;inset:-6px}.card-link:hover{box-shadow:0 20px 40px var(--shadow-strong);border-color:var(--primary-border-35);z-index:1;transform:translateY(-4px)}.card-link:hover:before{opacity:1}.card-link:focus-within:before{opacity:1}.card-link:focus-within{box-shadow:0 0 0 4px var(--primary-alpha-20);outline:none}.card-link__overlay{z-index:1;border-radius:inherit;display:block;position:absolute;inset:0}.card-link__action{z-index:2;position:relative}.panel{padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--surface-glass-border);background:var(--surface-glass);-webkit-backdrop-filter:blur(var(--backdrop-blur));box-shadow:var(--shadow);gap:var(--space-3);flex-direction:column;display:flex}:is(.landing__hero,.landing__flow,.landing__cta,.upload__form,.book-view__card,.book-view__reader,.recipe-detail__body,.auth__panel){padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--surface-glass-border);background:var(--surface-glass);-webkit-backdrop-filter:blur(var(--backdrop-blur));box-shadow:var(--shadow);gap:var(--space-3);flex-direction:column;display:flex}.badge{border:1px solid var(--pill-border);background:var(--pill-surface);color:var(--pill-text);font-weight:600;font-size:var(--text-13);letter-spacing:.01em;border-radius:999px;align-items:center;gap:6px;padding:6px 12px;display:inline-flex}:is(.landing__badge,.flow__badge,.feature-card__tag,.auth__badge){border:1px solid var(--pill-border);background:var(--pill-surface);color:var(--pill-text);font-weight:600;font-size:var(--text-13);letter-spacing:.01em;border-radius:999px;align-items:center;gap:6px;padding:6px 12px;display:inline-flex}.pill,.book-view__status-chip{border:1px solid var(--border);background:var(--surface);color:var(--muted);font-weight:500;font-size:var(--text-13);border-radius:999px;align-items:center;gap:6px;padding:6px 12px;display:inline-flex}.muted{color:var(--muted)}:is(.book-view__muted,.book-view__status,.library__status,.recipe-card__meta,.landing__lede,.flow__body,.cta__body,.auth__subtitle){color:var(--muted)}.eyebrow,.book-view__eyebrow{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:var(--text-12);font-weight:600}.status{border:1px solid var(--border);background:var(--surface-primary-10);border-radius:12px;padding:10px 14px;font-weight:500}:is(.upload__status,.book-view__status,.library__status){border:1px solid var(--border);background:var(--surface-primary-10);border-radius:12px;padding:10px 14px;font-weight:500}.status--success,.upload__status--success{color:var(--success);border-color:var(--success-border-20);background:var(--success-surface-12)}.status--error{color:var(--error);border-color:var(--error-border-20);background:var(--error-surface-12)}:is(.upload__status--error,.book-view__status--error,.library__status--error){color:var(--error);border-color:var(--error-border-20);background:var(--error-surface-12)}.form__field{gap:8px;display:grid}.form__field--file input[type=file]{background:var(--bg-depth);min-height:44px;color:var(--text);border:1px dashed var(--border);cursor:pointer;border-radius:12px;padding:12px}.form__field--file input[type=file]:hover{background:var(--surface-hover);border-color:var(--primary)}.form__input{border:1px solid var(--border);background:var(--bg-depth);width:100%;min-height:44px;color:var(--text);font-size:var(--text-15);border-radius:12px;padding:12px 16px;transition:all .2s}.form__field input:not([type=checkbox]){border:1px solid var(--border);background:var(--bg-depth);width:100%;min-height:44px;color:var(--text);font-size:var(--text-15);border-radius:12px;padding:12px 16px;transition:all .2s}.form__input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-alpha-12);outline:none}.form__field input:not([type=checkbox]):focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-alpha-12);outline:none}.form__input:disabled{opacity:.6;cursor:not-allowed;background:var(--bg-surface-15)}.form__field input:not([type=checkbox]):disabled{opacity:.6;cursor:not-allowed;background:var(--bg-surface-15)}.badge{font-size:var(--text-12);color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:999px;justify-content:center;align-items:center;padding:4px 10px;font-weight:600;display:inline-flex}.form__hint{color:var(--muted);font-size:var(--text-13);line-height:1.4}.form__error{color:var(--error);font-size:var(--text-13);align-items:center;gap:6px;display:flex}.form__file-meta{color:var(--muted);font-size:var(--text-13);background:var(--surface-bg-6);border-radius:8px;flex-wrap:wrap;align-items:center;gap:12px;padding:8px 12px;display:flex}.form__file-name{color:var(--text);font-weight:600}.modal-backdrop{padding:var(--space-3);padding-top:calc(var(--space-3) + env(safe-area-inset-top));padding-bottom:calc(var(--space-3) + env(safe-area-inset-bottom));background:var(--overlay-60);backdrop-filter:blur(4px);z-index:100;-webkit-overflow-scrolling:touch;place-items:center;animation:.2s modal-backdrop-in;display:grid;position:fixed;inset:0;overflow-y:auto}.modal{width:min(560px,92vw);max-height:90vh;padding:var(--space-4);border:1px solid var(--surface-glass-border);background:var(--surface);box-shadow:0 40px 80px var(--shadow-strong);gap:var(--space-3);animation:modal-in .3s var(--ease-out-expo);transform-origin:50%;border-radius:20px;flex-direction:column;display:flex;overflow-y:auto}.modal__head{justify-content:space-between;gap:var(--space-2);align-items:flex-start;display:flex}.modal__title-group{gap:4px;display:grid}.modal__title{font-size:var(--text-24);margin:0;line-height:1.2}.modal__subtitle{color:var(--muted);margin:0}.modal__body{gap:var(--space-2);display:grid}.modal__warning{color:var(--muted);font-size:var(--text-14);margin:0;line-height:1.5}.modal__footer{justify-content:flex-end;gap:var(--space-1);flex-wrap:wrap;display:flex}.modal__footer:empty{display:none}.toast-stack{right:var(--space-3);bottom:calc(var(--space-3) + env(safe-area-inset-bottom));gap:var(--space-1);z-index:110;max-width:min(360px,92vw);display:grid;position:fixed}.toast{padding:var(--space-2);border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);gap:8px;animation:.18s toast-in;display:grid}.toast--success{border-color:var(--success-border-20);background:var(--success-surface-12)}.toast--warning{border-color:var(--warning-border-20);background:var(--warning-surface-12)}.toast--error{border-color:var(--error-border-20);background:var(--error-surface-12)}.toast__content{gap:4px;display:grid}.toast__title{font-size:var(--text-15);margin:0}.toast__body{color:var(--muted);font-size:var(--text-14);margin:0}.toast__actions{gap:var(--space-1);flex-wrap:wrap;display:flex}.toast__actions:empty{display:none}.toast__dismiss{justify-self:flex-start}.loader{align-items:center;gap:var(--space-1);color:var(--muted);display:inline-flex}.loader--inline{display:inline-flex}.loader__spinner{border:2px solid var(--border);border-top-color:var(--primary);border-radius:999px;width:20px;height:20px;animation:.9s linear infinite loader-spin}.loader--small .loader__spinner{width:14px;height:14px}.loader--large .loader__spinner{width:28px;height:28px}.loader__label{font-size:var(--text-14);font-weight:600}.empty-state{padding:var(--space-3);border-radius:var(--radius-lg);border:1px dashed var(--border);background:var(--surface-bg-6);gap:var(--space-1);display:grid}.empty-state__title{font-size:var(--text-20);margin:0}.empty-state__body{color:var(--muted);margin:0}.empty-state__actions{gap:var(--space-1);flex-wrap:wrap;display:flex}.empty-state__actions:empty{display:none}@keyframes modal-in{0%{opacity:0;transform:translateY(6px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes modal-backdrop-in{0%{opacity:0}to{opacity:1}}@keyframes toast-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes loader-spin{to{transform:rotate(360deg)}}@keyframes skeleton-shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton-shimmer{background:linear-gradient(90deg, var(--surface-bg-6,rgba(0,0,0,.04)) 25%, var(--surface-bg-8,rgba(0,0,0,.06)) 50%, var(--surface-bg-6,rgba(0,0,0,.04)) 75%);border-radius:var(--radius);background-size:200% 100%;animation:1.5s ease-in-out infinite skeleton-shimmer}.skeleton-card{padding:var(--space-2) var(--space-3);border-radius:var(--radius-lg);border:1px solid var(--surface-glass-border);background:var(--surface-glass);flex-direction:column;gap:8px;display:flex}.skeleton-card__media{aspect-ratio:3/2;border-radius:var(--radius);width:100%}.skeleton-card__body{gap:8px;padding:4px 0;display:grid}.skeleton-card__line{border-radius:4px;height:14px}.skeleton-card__line--title{width:75%;height:18px}.skeleton-card__line--meta{width:60%}.skeleton-card__line--short{width:40%}@media (prefers-reduced-motion:reduce){.skeleton-shimmer{animation:none}}@media (width<=45rem){.toast-stack{right:var(--space-2);left:var(--space-2);bottom:calc(var(--space-2) + env(safe-area-inset-bottom))}}.update-banner{justify-content:space-between;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);background:linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);color:var(--text-on-primary);font-size:var(--text-14);animation:fade-in var(--duration-short) ease;font-weight:500;display:flex}.update-banner__actions{align-items:center;gap:var(--space-1);flex-shrink:0;display:flex}.update-banner__dismiss{color:var(--text-on-primary);cursor:pointer;padding:var(--space-1);font-size:var(--text-16);opacity:.8;transition:opacity var(--duration-short) ease;background:0 0;border:none;line-height:1}.update-banner__dismiss:hover{opacity:1}@media (prefers-reduced-motion:reduce){.btn{transition:none}.modal,.modal-backdrop,.toast,.loader__spinner{animation:none}}.text-link{color:var(--primary);text-underline-offset:2px;text-decoration:underline}.text-link:hover{color:var(--primary-strong)}