:root{--bg:#f4f7f6;--surface:#fff;--surface-muted:#edf3f1;--text:#17211f;--muted:#66736f;--line:#dbe5e2;--primary:#176b5c;--primary-dark:#0f4d42;--accent:#f0b429;--danger:#c2413b;--success:#157f4f;--shadow:0 22px 60px rgba(25,40,36,.12)}*{box-sizing:border-box}body,html{min-height:100%;margin:0;background:var(--bg);color:var(--text);font-family:Arial,Apple SD Gothic Neo,Noto Sans KR,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.auth-page{min-height:100vh;display:grid;place-items:center;padding:32px;background:linear-gradient(135deg,rgba(23,107,92,.96),rgba(23,33,31,.9)),url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cpath d='M0 80h160M80 0v160' stroke='%23ffffff' stroke-opacity='.08'/%3E%3Ccircle cx='80' cy='80' r='52' fill='none' stroke='%23ffffff' stroke-opacity='.07'/%3E%3C/svg%3E")}.auth-hero{width:min(960px,100%);display:grid;grid-template-columns:minmax(0,1fr) 420px;grid-gap:48px;gap:48px;align-items:center}.auth-hero--signup{grid-template-columns:minmax(0,.8fr) minmax(460px,520px)}.auth-brand{color:#fff}.auth-brand__mark,.brand-mark{display:grid;place-items:center;width:64px;height:64px;border-radius:16px;background:#fff;color:var(--primary);font-weight:900;letter-spacing:0}.auth-brand h1{margin:24px 0 10px;font-size:56px;letter-spacing:0}.auth-brand p{margin:0;color:hsla(0,0%,100%,.82);font-size:18px}.auth-panel{padding:34px;background:hsla(0,0%,100%,.96);border:1px solid hsla(0,0%,100%,.45);border-radius:8px;box-shadow:var(--shadow)}.auth-panel--wide{padding:30px}.auth-panel__header p,.section-eyebrow,.topbar-eyebrow{margin:0 0 8px;color:var(--primary);font-size:12px;font-weight:800;letter-spacing:0}.auth-panel__header h2{margin:0 0 26px;font-size:30px}.field{display:grid;grid-gap:8px;gap:8px;margin-bottom:16px}.field span{color:var(--muted);font-size:13px;font-weight:700}.field input{width:100%;height:48px;border:1px solid var(--line);border-radius:6px;padding:0 14px;background:#fff;color:var(--text)}.field input:focus{outline:2px solid rgba(23,107,92,.18);border-color:var(--primary)}.field-row,.form-grid{display:grid;grid-gap:12px;gap:12px}.field-row{grid-template-columns:minmax(0,1fr) 140px;align-items:end}.form-grid{grid-template-columns:1fr 1fr}.primary-action,.primary-button,.secondary-action,.secondary-link-button,.text-button{border:0;border-radius:6px;cursor:pointer;font-weight:800}.primary-action,.primary-button{min-height:44px;padding:0 18px;background:var(--primary);color:#fff}.primary-action{width:100%;height:50px;margin-top:6px}.primary-action:disabled,.primary-button:disabled,.secondary-action:disabled{opacity:.55;cursor:not-allowed}.secondary-action,.secondary-link-button{min-height:48px;display:inline-grid;place-items:center;padding:0 16px;background:var(--surface-muted);color:var(--primary-dark)}.text-button{background:transparent;color:var(--primary)}.error-banner,.form-error{background:#fff1ef;color:var(--danger)}.error-banner,.form-error,.form-message,.success-banner{margin:0 0 16px;padding:12px 14px;border-radius:6px;font-size:14px}.form-message,.success-banner{background:#eaf8f1;color:var(--success)}.auth-switch{margin:18px 0 0;color:var(--muted);text-align:center}.auth-switch a{color:var(--primary);font-weight:800}.loading-screen{min-height:100vh;display:grid;place-items:center;color:var(--muted)}.portal{min-height:100vh;display:grid;grid-template-columns:252px minmax(0,1fr)}.sidebar{background:#10231f;color:#fff;padding:24px}.brand-block{display:flex;gap:14px;align-items:center;padding-bottom:24px;border-bottom:1px solid hsla(0,0%,100%,.12)}.brand-block span,.brand-block strong{display:block}.brand-block span{margin-top:4px;color:hsla(0,0%,100%,.66);font-size:13px}.side-nav{display:grid;grid-gap:8px;gap:8px;margin-top:24px}.side-link{display:flex;gap:10px;align-items:center;min-height:44px;padding:0 12px;border-radius:6px;color:hsla(0,0%,100%,.74);font-weight:800}.side-link.is-active{background:hsla(0,0%,100%,.13);color:#fff}.portal-main{min-width:0}.topbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 32px;background:var(--surface);border-bottom:1px solid var(--line)}.topbar h1{margin:0;font-size:24px}.topbar-user{display:flex;align-items:center;gap:14px;color:var(--muted)}.content{padding:32px}.page-stack{display:grid;grid-gap:20px;gap:20px}.page-heading{display:flex;justify-content:space-between;gap:16px;align-items:center}.page-heading h2{margin:0;font-size:28px}.data-table-wrap,.empty-state{background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px rgba(25,40,36,.06)}.data-table-wrap{overflow:hidden}.data-table{width:100%;border-collapse:collapse}.data-table td,.data-table th{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left}.data-table th{background:#f8fbfa;color:var(--muted);font-size:13px}.data-table td a{color:var(--primary);font-weight:800}.empty-state,.table-empty{padding:42px;color:var(--muted);text-align:center}.empty-state h3{margin:0 0 8px;color:var(--text)}.icon-button,.mobile-menu-button{display:none}.sheet-host,.sheet-page{width:100vw;height:100vh;overflow:hidden;background:#fff}.sheet-header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid #d9dfeb;background:#fff}.sheet-header strong,.sheet-header__eyebrow{display:block}.sheet-header__eyebrow{color:var(--primary);font-size:11px;font-weight:900}.sheet-header__actions{display:flex;gap:8px}.sheet-header__button{min-width:76px;height:36px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);cursor:pointer;font-weight:800}.sheet-header__button--primary{border-color:var(--primary);background:var(--primary);color:#fff}.sheet-toast{position:fixed;right:24px;bottom:24px;z-index:50;max-width:520px;padding:14px 16px;border-radius:6px;box-shadow:var(--shadow)}.sheet-toast--error{background:#fff1ef;color:var(--danger)}.sheet-toast--success{background:#eaf8f1;color:var(--success)}@media (max-width:860px){.auth-hero,.auth-hero--signup,.field-row,.form-grid,.portal{grid-template-columns:1fr}.auth-brand h1{font-size:42px}.sidebar{display:none}.sidebar.is-mobile-open{display:block;position:fixed;z-index:20;inset:0 auto 0 0;width:260px}.mobile-menu-button{display:inline-grid;place-items:center;width:42px;height:42px;border:1px solid var(--line);border-radius:6px;background:#fff}.topbar{padding:0 18px}.topbar-user span{display:none}.content{padding:20px}.page-heading{align-items:stretch;flex-direction:column}}