:root{--bg:#f5f6f8;--panel:#fff;--ink:#15171a;--muted:#6f7580;--line:#e8eaee;--accent:#5b5ce2;--accent2:#7c5ce7;--danger:#dc3f4f;--holiday:#e0435a;--sat:#3568d4;--shadow:0 18px 55px rgba(22,28,45,.08);font-family:Inter,"Noto Sans KR",sans-serif;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 8% 0%,#eeebff 0,transparent 26rem),var(--bg)}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
.app-shell{min-height:100vh}
.topbar{height:72px;padding:0 max(28px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(222,224,230,.8);background:rgba(255,255,255,.72);backdrop-filter:blur(18px);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:-.02em}
.brand-mark{width:54px;height:54px;border-radius:17px;display:grid;place-items:center;color:#fff;font-size:26px;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 10px 26px rgba(91,92,226,.28)}
.brand-mark.small{width:34px;height:34px;border-radius:10px;font-size:16px;box-shadow:none}
.top-actions,.modal-actions{display:flex;gap:10px;align-items:center}
.user-chip{font-size:13px;font-weight:650;color:var(--muted);background:#f1f1ff;padding:7px 13px;border-radius:999px}
.button{border:0;border-radius:11px;padding:10px 16px;font-weight:650;cursor:pointer;text-decoration:none;text-align:center;transition:.18s ease}
.button:hover{transform:translateY(-1px)}
.button:disabled{opacity:.6;cursor:wait}
.button.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 8px 20px rgba(91,92,226,.18)}
.button.ghost{background:#fff;color:#4f5560;border:1px solid var(--line)}
.button.destructive{background:var(--danger);color:#fff}
.button.wide{width:100%;display:block}
.content{max-width:1180px;margin:0 auto;padding:40px 28px 80px}
.icon-button{width:34px;height:34px;border:0;border-radius:9px;background:transparent;color:#6f7580;cursor:pointer;font-size:18px;display:grid;place-items:center}
.icon-button:hover{background:#eff0f4;color:var(--ink)}
.panel{background:var(--panel);border:1px solid rgba(225,227,232,.9);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.panel-head{padding:20px 22px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:14px}
.panel-head h2{font-size:17px;margin:0}
.panel-head p{font-size:12px;color:var(--muted);margin:4px 0 0}
dialog{border:0;border-radius:22px;padding:0;box-shadow:0 28px 90px rgba(20,24,40,.24);width:min(480px,calc(100vw - 28px));overflow:hidden}
dialog::backdrop{background:rgba(21,23,30,.38);backdrop-filter:blur(5px)}
.modal{padding:27px;display:flex;flex-direction:column;gap:16px;max-height:85vh;overflow-y:auto}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between}
.modal h2{margin:0;font-size:21px;letter-spacing:-.03em}
.modal label{font-size:12px;font-weight:650;color:#4e535d;display:flex;flex-direction:column;gap:8px}
.modal input[type=text],.modal input[type=datetime-local],.modal input[type=date]{height:45px;border:1px solid #dfe1e6;border-radius:11px;padding:0 13px;outline:0;color:var(--ink);background:#fff}
.modal input:focus{border-color:#9697eb;box-shadow:0 0 0 3px rgba(91,92,226,.1)}
.modal .field-row{display:flex;gap:12px}
.modal .field-row label{flex:1}
.modal .checkbox-row{flex-direction:row;align-items:center;gap:9px;font-size:13px;color:var(--ink)}
.modal .checkbox-row input{width:17px;height:17px}
.modal-actions{justify-content:flex-end;margin-top:5px}
.form-error{color:var(--danger);font-size:12px;margin:0}
.modal.compact{text-align:center;align-items:center;padding-top:34px}
.modal.compact p{color:var(--muted);font-size:13px;line-height:1.6;margin:0;max-width:350px}
.modal.compact .modal-actions{width:100%;justify-content:center}
.danger-symbol{width:50px;height:50px;border-radius:15px;background:#fff0f1;color:var(--danger);display:grid;place-items:center;font-weight:800;font-size:22px}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;background:#20232a;color:#fff;padding:11px 17px;border-radius:11px;font-size:13px;box-shadow:0 12px 32px rgba(0,0,0,.18);transition:.22s;z-index:60;pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(410px,100%);background:rgba(255,255,255,.92);border:1px solid rgba(225,227,232,.9);border-radius:26px;padding:42px;box-shadow:var(--shadow);text-align:center}
.login-card .brand-mark{margin:0 auto 24px}
.login-card h1{font-size:32px;letter-spacing:-.05em;margin:0}
.login-copy{color:var(--muted);font-size:14px;margin:10px 0 30px}
.login-form{text-align:left;display:flex;flex-direction:column;gap:10px}
.login-form label{font-size:12px;font-weight:650;color:#525761}
.login-form input{height:48px;border:1px solid #dfe1e6;border-radius:12px;padding:0 14px;outline:0;margin-bottom:4px}
.login-form input:focus{border-color:#9697eb;box-shadow:0 0 0 3px rgba(91,92,226,.1)}
.not-found .button{margin-top:24px}
.eyebrow{color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.14em;margin:0 0 9px}

/* ---- calendar ---- */
.cal-content{padding-top:28px}
.cal-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:16px;flex-wrap:wrap}
.month-nav{display:flex;align-items:center;gap:6px}
.month-nav h1{font-size:24px;letter-spacing:-.03em;margin:0;min-width:150px;text-align:center}
.toolbar-actions{display:flex;gap:10px}
.cal-layout{display:grid;grid-template-columns:1fr 340px;gap:22px;align-items:start}
.cal-grid-panel{padding:6px 6px 14px}
.weekday-row{display:grid;grid-template-columns:repeat(7,1fr);padding:14px 10px 6px;font-size:12px;font-weight:700;color:var(--muted);text-align:center}
.weekday-row .sun{color:var(--holiday)}
.weekday-row .sat{color:var(--sat)}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;padding:0 10px 10px}
.day-cell{min-height:92px;border-radius:13px;border:1px solid transparent;background:#fafafc;padding:8px 7px;display:flex;flex-direction:column;gap:5px;cursor:pointer;text-align:left;transition:.15s}
.day-cell:hover{background:#f1f1ff}
.day-cell.outside{opacity:.38}
.day-cell.today{border-color:var(--accent)}
.day-cell.selected{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.day-cell.selected .day-num,.day-cell.selected .holiday-label{color:#fff}
.day-num{font-size:13px;font-weight:700}
.day-cell.sunday .day-num{color:var(--holiday)}
.day-cell.saturday .day-num{color:var(--sat)}
.day-cell.holiday .day-num{color:var(--holiday)}
.holiday-label{font-size:10px;color:var(--holiday);font-weight:650;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.event-dots{display:flex;flex-direction:column;gap:2px;margin-top:auto}
.event-chip{font-size:10px;padding:2px 6px;border-radius:6px;background:#eceafe;color:var(--accent);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.day-cell.selected .event-chip{background:rgba(255,255,255,.25);color:#fff}
.event-more{font-size:10px;color:var(--muted);font-weight:650}
.day-cell.selected .event-more{color:rgba(255,255,255,.85)}
.day-dots{display:none;gap:3px;margin-top:auto;flex-wrap:wrap}
.day-dot{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.day-cell.selected .day-dot{background:#fff}

.agenda-panel{position:sticky;top:96px}
.agenda-list{padding:14px 16px 20px;display:flex;flex-direction:column;gap:10px;max-height:70vh;overflow-y:auto}
.agenda-empty{text-align:center;color:var(--muted);font-size:13px;padding:36px 10px}
.agenda-holiday{background:#fff0f2;color:var(--holiday);font-weight:650;font-size:13px;padding:10px 13px;border-radius:12px}
.agenda-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:12px 14px;cursor:pointer;transition:.15s}
.agenda-item:hover{border-color:#c9caf2;background:#fafaff}
.agenda-item-title{font-weight:650;font-size:14px;margin:0 0 3px}
.agenda-item-time{font-size:12px;color:var(--muted);margin:0}

.ai-fab{position:fixed;right:24px;bottom:24px;width:58px;height:58px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:24px;box-shadow:0 14px 34px rgba(91,92,226,.35);cursor:pointer;z-index:40;display:grid;place-items:center;transition:.18s}
.ai-fab:hover{transform:translateY(-2px) scale(1.03)}
.ai-drawer{position:fixed;right:20px;bottom:96px;width:min(360px,calc(100vw - 40px));height:min(480px,calc(100vh - 160px));background:#fff;border-radius:22px;box-shadow:0 28px 80px rgba(20,24,40,.26);display:flex;flex-direction:column;z-index:41;overflow:hidden;transform:translateY(16px) scale(.97);opacity:0;pointer-events:none;transition:.18s}
.ai-drawer.open{transform:none;opacity:1;pointer-events:auto}
.ai-drawer-head{padding:14px 16px;font-weight:700;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.ai-messages{flex:1;overflow-y:auto;padding:14px 16px;display:flex;flex-direction:column;gap:9px}
.ai-msg{max-width:85%;padding:9px 12px;border-radius:13px;font-size:13px;line-height:1.5}
.ai-msg-bot{background:#f1f1ff;color:var(--ink);align-self:flex-start;border-bottom-left-radius:4px}
.ai-msg-user{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.ai-msg-error{background:#fff0f1;color:var(--danger);align-self:flex-start}
.ai-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.ai-input-row input{flex:1;height:40px;border:1px solid #dfe1e6;border-radius:10px;padding:0 12px;outline:0}
.ai-input-row input:focus{border-color:#9697eb}
.ai-input-row .button{padding:0 16px;height:40px}

@media(max-width:900px){
  .cal-layout{grid-template-columns:1fr}
  .agenda-panel{position:static}
  .day-cell{min-height:64px;padding:6px 5px}
  .event-chip,.event-more{display:none}
  .day-dots{display:flex}
}
@media(max-width:720px){
  .topbar{height:64px;padding:0 17px}
  .content{padding:24px 12px 60px}
  .login-card{padding:34px 24px}
  .ai-drawer{right:12px;left:12px;width:auto;bottom:88px}
  .ai-fab{right:16px;bottom:16px}
}