:root{--bg:#f5f6f8;--surface:#ffffff;--surface-elevated:#ffffff;--border:#e5e7eb;--border-strong:#d1d5db;--text:#0f172a;--text-muted:#64748b;--text-subtle:#94a3b8;--primary:#1d4ed8;--primary-hover:#1e40af;--primary-soft:#eff6ff;--urgent:#dc2626;--urgent-soft:#fef2f2;--important:#ea580c;--important-soft:#fff7ed;--normal:#16a34a;--normal-soft:#f0fdf4;--success:#15803d;--danger:#b91c1c;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-pill:999px;--shadow-sm:0 1px 2px 0 rgba(15,23,42,0.04);--shadow-md:0 4px 12px -2px rgba(15,23,42,0.08),0 2px 4px -2px rgba(15,23,42,0.04)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}ul{list-style:none;padding:0;margin:0}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.app-header{background:var(--surface);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:10}.app-header__inner{max-width:880px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.app-header__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--text)}.app-header__brand-mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#6366f1);display:inline-flex;align-items:center;justify-content:center;color:white;font-weight:700;font-size:13px;letter-spacing:-.02em}.app-header__user{display:flex;align-items:center;gap:12px;color:var(--text-muted);font-size:13px}main{flex:1 1;width:100%;max-width:880px;margin:0 auto;padding:28px 24px 80px}.inbox-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}.inbox-title{margin:0;font-size:26px;font-weight:700;letter-spacing:-.015em}.inbox-counter{display:inline-flex;align-items:baseline;gap:6px;color:var(--text-muted);font-size:14px;margin-top:4px}.inbox-counter strong{color:var(--text);font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px 20px;box-shadow:var(--shadow-sm)}.card__title{margin:0 0 10px;font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted)}.card__body{white-space:pre-wrap;font-family:inherit;margin:0;font-size:15px;line-height:1.6;color:var(--text);word-wrap:break-word}.email-list{gap:10px}.email-item,.email-list{display:flex;flex-direction:column}.email-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;gap:6px;transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease;box-shadow:var(--shadow-sm)}.email-item:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md)}.email-item__row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.email-item__link{font-weight:600;color:var(--text);font-size:15px}.email-item__link:hover{color:var(--primary)}.email-item__meta{color:var(--text-muted);font-size:13px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}.email-item__meta-sep{color:var(--text-subtle)}.email-item__category{display:inline-block;padding:1px 8px;border-radius:var(--radius-pill);background:var(--primary-soft);color:var(--primary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.03em}.skeleton{height:64px;background:linear-gradient(90deg,#e5e7eb,#f3f4f6 50%,#e5e7eb);background-size:200% 100%;animation:skeleton-shimmer 1.4s ease-in-out infinite;border-radius:var(--radius-md)}@keyframes skeleton-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.empty-state{display:flex;flex-direction:column;padding:60px 24px;text-align:center;background:var(--surface);border:1px dashed var(--border-strong);border-radius:var(--radius-lg)}.empty-state,.empty-state__icon{align-items:center;justify-content:center}.empty-state__icon{width:48px;height:48px;border-radius:50%;background:var(--normal-soft);color:var(--normal);display:inline-flex;margin-bottom:14px}.empty-state__title{margin:0 0 6px;font-size:18px;font-weight:600}.empty-state__text{margin:0;color:var(--text-muted);font-size:14px}.detail{display:flex;flex-direction:column;gap:16px}.detail__back{align-self:flex-start;background:none;border:none;padding:4px 0;color:var(--text-muted);font-size:14px;display:inline-flex;align-items:center;gap:6px;cursor:pointer}.detail__back:hover{color:var(--primary)}.detail__header{display:flex;flex-direction:column;gap:8px}.detail__header-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.detail__subject{margin:0;font-size:22px;font-weight:700;letter-spacing:-.01em}.detail__meta{margin:0;color:var(--text-muted);font-size:13px}.detail__actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:4px}.detail__actions-spacer{flex:1 1}.detail__feedback-prompt{margin:8px 0 0;display:flex;align-items:center;gap:8px;color:var(--text-muted);font-size:13px}.cal-card{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-md);padding:16px 18px;display:flex;gap:14px;align-items:flex-start}.cal-card__icon{flex-shrink:0;width:36px;height:36px;border-radius:8px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center}.cal-card__body{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1 1}.cal-card__title{margin:0;font-size:14px;font-weight:600;color:var(--text)}.cal-card__date,.cal-card__location{margin:0;font-size:13px;color:var(--text-muted)}button{font:inherit}.btn{cursor:pointer;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:background .12s ease,border-color .12s ease,color .12s ease}.btn:hover{background:#f9fafb;border-color:#9ca3af}.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.btn--primary{background:var(--primary);border-color:var(--primary);color:white}.btn--primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.btn--ghost{background:transparent;border-color:transparent;color:var(--text-muted);padding:6px 10px}.btn--ghost:hover{background:var(--bg);color:var(--text)}.btn--icon{padding:6px 10px;font-size:16px}.btn--icon[aria-pressed=true]{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}.urgency-badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:var(--radius-pill);font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;cursor:help;border:1px solid}.urgency-badge--urgent{color:var(--urgent);background:var(--urgent-soft)}.urgency-badge--important{color:var(--important);background:var(--important-soft)}.urgency-badge--normal{color:var(--normal);background:var(--normal-soft)}.toast{position:fixed;bottom:24px;right:24px;background:var(--text);color:white;padding:12px 18px;border-radius:var(--radius-md);box-shadow:var(--shadow-md);font-size:14px;display:flex;align-items:center;gap:10px;animation:toast-in .18s ease-out;z-index:50}.toast--success{background:var(--success)}@keyframes toast-in{0%{transform:translateY(8px);opacity:0}to{transform:translateY(0);opacity:1}}