.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:8px;padding:10px 17px;min-height:43px;font-size:.875rem;line-height:1.5;font-weight:600;transition:background .15s,transform .15s;white-space:normal}.button .icon{width:17px;height:17px}.button.primary{background:var(--accent);color:#fff}.button.primary:hover{background:var(--accent-hover)}[data-theme=dark] .button.primary{color:#1c1e26}.button.secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.button.secondary:hover{background:var(--surface-soft)}.button.soft{background:var(--accent-soft);color:var(--accent)}.button.ghost{background:transparent;color:var(--muted)}.button.danger{background:#bc3636;color:white}.button.small{padding:8px 12px;min-height:36px;font-size:.8125rem}.button.full{width:100%}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:.875rem;font-weight:550;border:0;background:transparent;padding:0}.text-link:hover{color:var(--accent)}.text-link .icon{width:16px;height:16px}.icon-button{border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--muted);display:inline-flex;align-items:center;justify-content:center;width:39px;height:39px;padding:8px;flex:none}.icon-button:hover{background:var(--surface-soft);color:var(--ink)}.icon-button .icon{width:19px;height:19px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:21px 24px;border-bottom:1px solid var(--line)}.panel-header h2{font-size:1rem}.panel-body{padding:25px}.badge{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;line-height:1.5;padding:4px 9px;border:1px solid var(--line);border-radius:6px;color:var(--muted);white-space:nowrap;font-weight:500}.badge.orange{background:var(--accent-soft);color:var(--accent);border:0}.pill{border-radius:100px}.empty-state{text-align:center;padding:54px 24px 48px;display:flex;align-items:center;flex-direction:column}.empty-icon{width:62px;height:62px;display:grid;place-items:center;border:1px solid var(--line);border-radius:16px;background:var(--surface-soft);color:var(--muted);margin-bottom:19px}.empty-icon .icon{width:27px;height:27px}.empty-state h3{font-size:1rem;font-weight:600;margin-bottom:8px}.empty-state p{font-size:.875rem;max-width:340px;line-height:1.75}.empty-state .button,.empty-state .text-link{margin-top:22px}.empty-state.compact{padding:29px 20px}.empty-state.compact .empty-icon{width:43px;height:43px;border-radius:11px;margin-bottom:13px}.empty-state.compact .empty-icon .icon{width:21px;height:21px}.empty-state.compact h3{font-size:.9375rem}.empty-state.compact p{font-size:.8125rem}.empty-state.compact .button{margin-top:16px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:24px 0 29px}.stat-card{padding:19px 22px;display:flex;gap:15px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px}.stat-icon{display:grid;place-items:center;width:43px;height:43px;background:var(--surface-soft);border-radius:11px;color:var(--muted)}.stat-value{font-size:1.5rem;line-height:1.3;font-weight:650;letter-spacing:-.5px}.stat-label{font-size:.8125rem;color:var(--muted);margin-top:3px}.field{display:grid;gap:7px;margin-bottom:21px}.field label,.field-label{font-size:.875rem;font-weight:550}.field small{font-size:.8125rem;color:var(--muted)}input,select,textarea{width:100%;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:11px 13px;font-size:.9375rem;line-height:1.5}input::placeholder,textarea::placeholder{color:var(--muted);opacity:.75}textarea{resize:vertical}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.modal{width:min(490px,calc(100% - 32px));border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:18px;padding:26px;box-shadow:0 25px 100px #0004}.modal::backdrop{background:#080f2380;backdrop-filter:blur(4px)}.modal-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px}.modal-heading h2{font-size:1.3rem}.modal p{font-size:.9375rem;margin-bottom:24px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,15px);max-width:calc(100vw - 36px);width:max-content;background:#18263d;color:white;border:1px solid #ffffff15;border-radius:11px;padding:13px 20px;box-shadow:0 5px 30px #0002;font-size:.875rem;z-index:90;opacity:0;pointer-events:none;transition:.2s}.toast.visible{opacity:1;transform:translate(-50%,0)}.toast.error{background:#842f2f}.callout{display:flex;gap:12px;padding:16px 20px;border:1px solid var(--line);border-radius:11px;font-size:.8125rem;color:var(--muted);background:var(--surface-soft);line-height:1.75}.callout .icon{width:18px;height:18px;margin-top:3px}.callout strong{color:var(--ink);font-weight:550}.activity-list{padding:0 22px}.activity-row{display:flex;align-items:center;gap:13px;padding:18px 0;border-bottom:1px solid var(--line);min-width:0}.activity-row:last-child{border:0}.activity-title{font-size:.875rem;font-weight:550;overflow-wrap:anywhere}.activity-meta{font-size:.75rem;color:var(--muted);margin-top:3px}.activity-row .activity-content{min-width:0;flex:1}.activity-row>.icon{width:18px;color:var(--muted)}.tone-reading{--skill:var(--purple);--skill-soft:var(--purple-soft)}.tone-listening{--skill:var(--blue);--skill-soft:var(--blue-soft)}.tone-writing{--skill:var(--accent);--skill-soft:var(--accent-soft)}.skill-icon{width:47px;height:47px;display:grid;place-items:center;border-radius:12px;background:var(--skill-soft);color:var(--skill)}.skill-icon .icon{width:23px;height:23px}.notice-error{border:1px solid #d56b6b;background:var(--surface);color:var(--danger);padding:16px;border-radius:10px;margin-bottom:20px}.notice-error .button{margin-top:10px}
@media(max-width:650px){.stats-row{gap:9px}.stat-card{padding:14px 9px;gap:9px;flex-direction:column;align-items:flex-start}.stat-icon{width:30px;height:30px;border-radius:8px}.stat-icon .icon{width:17px;height:17px}.stat-label{font-size:.75rem}.stat-value{font-size:1.35rem}.panel-header{padding:18px}.panel-body{padding:20px}.field-row{grid-template-columns:1fr;gap:0}.modal{padding:22px}.modal-actions{flex-wrap:wrap}.empty-state{padding:40px 20px}.toast{bottom:16px}.callout{padding:15px}}