:root{
  --blue:#0b5bd3; --blue2:#08459f; --bg:#f5f7fb; --text:#142033; --muted:#68758a;
  --line:#dfe5ef; --white:#fff; --green:#0f8f54; --red:#c53b3b; --shadow:0 10px 30px rgba(20,32,51,.08);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic UI",sans-serif}
body{min-height:100vh}
button,input,select{font:inherit}
button{cursor:pointer}
.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:14px max(18px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar h1{font-size:20px;margin:2px 0 0}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--blue)}
.container{max-width:1180px;margin:0 auto;padding:22px 16px 60px}
.card,.auth-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.auth-card{max-width:440px;margin:70px auto;padding:28px}
.auth-card h2,.card h3{margin-top:0}
.stack{display:grid;gap:15px}
.stack.compact{gap:12px}
label{display:grid;gap:7px;font-size:14px;font-weight:700}
input,select{width:100%;padding:12px 13px;border:1px solid #cfd8e7;border-radius:11px;background:#fff;color:var(--text);outline:none}
input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(11,91,211,.12)}
.primary,.secondary,.ghost,.danger{border:0;border-radius:11px;padding:11px 16px;font-weight:800}
.primary{background:var(--blue);color:#fff}
.primary:hover{background:var(--blue2)}
.secondary{background:#eaf2ff;color:var(--blue)}
.ghost{background:#f1f4f8;color:#33445f}
.danger{background:#fff0f0;color:var(--red)}
.full{width:100%}
.hidden{display:none!important}
.muted{color:var(--muted)}
.hint{font-size:12px;color:var(--muted);font-weight:500}
.form-error{color:var(--red);min-height:18px;font-size:13px}
.form-message{font-size:13px;min-height:18px}
.error{padding:20px;border-color:#ffc8c8;background:#fff8f8}
.hero{padding:22px;display:flex;justify-content:space-between;align-items:center;gap:18px}
.hero h2{margin:4px 0}
.goal-box{min-width:190px;padding:14px 18px;border-radius:15px;background:#eef5ff}
.goal-label{font-size:12px;font-weight:800;color:var(--blue)}
.goal-number{font-size:29px;font-weight:900;margin:4px 0}
.slash{padding:0 5px;color:#97a6ba}
.goal-message{font-size:12px;font-weight:700;color:var(--green)}
.notice{margin-top:14px;padding:18px 22px}
.notice p{margin:6px 0}
.section-heading,.admin-title,.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:26px 0 12px}
.section-heading h2,.admin-title h2{margin:3px 0}
.slot-list{display:grid;gap:12px}
.slot-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;grid-template-columns:145px 1fr auto;align-items:center;gap:18px}
.slot-date{font-weight:900;font-size:18px}
.slot-week{font-size:12px;color:var(--muted);margin-top:3px}
.slot-time{font-weight:900;font-size:19px}
.badges{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px}
.badge{display:inline-flex;align-items:center;padding:5px 8px;border-radius:999px;background:#eef5ff;color:var(--blue);font-size:12px;font-weight:800}
.badge.full{background:#fff0f0;color:var(--red);width:auto}
.badge.mine{background:#e9f8f0;color:var(--green)}
.slot-actions{text-align:right;min-width:130px}
.capacity{font-size:13px;color:var(--muted);margin-bottom:8px}
.tabs{display:flex;gap:8px;margin-bottom:14px;overflow:auto}
.tab{border:0;background:#e9edf4;color:#47566d;padding:10px 16px;border-radius:999px;font-weight:800;white-space:nowrap}
.tab.active{background:var(--blue);color:#fff}
.tab-panel>.card,.grid-2{margin-bottom:14px}
.card{padding:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:11px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:13px;vertical-align:middle}
th{font-size:12px;color:#61708a;background:#f8fafc;position:sticky;top:0}
.simple-list{padding-left:20px;color:#4b5b73;line-height:1.8}
.admin-slot-list{display:grid;gap:10px}
.admin-slot{display:grid;grid-template-columns:1fr auto;gap:12px;padding:14px;border:1px solid var(--line);border-radius:13px}
.admin-slot strong{display:block}
.admin-slot .meta{font-size:13px;color:var(--muted);margin-top:5px}
.admin-slot .controls{display:flex;gap:7px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.admin-slot .controls input{width:76px;padding:8px}
dialog{border:0;border-radius:18px;padding:0;box-shadow:0 24px 70px rgba(0,0,0,.25);max-width:430px;width:calc(100% - 28px)}
dialog::backdrop{background:rgba(12,20,34,.45)}
.dialog-card{padding:22px}
.choice-grid{display:grid;gap:10px;margin:18px 0}
.choice-btn{border:1px solid #bfd1ef;background:#f6f9ff;color:var(--blue);border-radius:12px;padding:14px;font-weight:900}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#152238;color:#fff;padding:12px 18px;border-radius:999px;box-shadow:var(--shadow);z-index:30;font-weight:700;font-size:13px}
@media(max-width:720px){
  .topbar{padding:12px 14px}.topbar h1{font-size:16px}
  .container{padding:15px 12px 40px}
  .hero{align-items:flex-start;flex-direction:column}.goal-box{width:100%}
  .slot-card{grid-template-columns:1fr;gap:10px}.slot-actions{text-align:left;min-width:0}.slot-actions button{width:100%}
  .grid-2{grid-template-columns:1fr}.row-2{grid-template-columns:1fr 1fr}
  .card{padding:16px}.section-heading,.toolbar{align-items:flex-start}
}