:root{
  --navy:#1e3a5f; --navy-d:#14263f; --green:#3aa655; --green-d:#2c8544;
  --bg:#f4f6f9; --card:#ffffff; --line:#e3e8ef; --tx:#22303f; --tx2:#68788d;
  --red:#d94545; --amber:#e8a13c; --blue:#3b82f6;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;background:var(--bg);color:var(--tx);font-size:15px;line-height:1.6}
a{color:var(--navy);text-decoration:none}
.topbar{background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 22px;height:58px;flex-wrap:wrap;position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(20,38,63,.25)}
.brand{color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;gap:9px}
.brand small{font-weight:400;font-size:12px;opacity:.75}
.brand-mark{background:var(--green);border-radius:8px;width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:900}
.nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.nav a{color:#dbe4f0;font-size:14px}
.nav a:hover{color:#fff}
.nav .btn-sm{background:rgba(255,255,255,.14);padding:6px 13px;border-radius:7px;color:#fff}
.wrap{max-width:1120px;margin:26px auto 60px;padding:0 18px}
.foot{text-align:center;color:var(--tx2);font-size:12px;padding:24px 0 40px}
h1.pt{font-size:22px;margin-bottom:4px}
.pt-sub{color:var(--tx2);font-size:13px;margin-bottom:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:18px}
.card h2{font-size:16px;margin-bottom:14px;color:var(--navy)}
.flash{background:#e8f6ec;border:1px solid #bfe3cb;color:#1d6b34;padding:11px 16px;border-radius:9px;margin-bottom:16px;font-size:14px}
.err{background:#fdeeee;border:1px solid #f3c3c3;color:#a33;padding:11px 16px;border-radius:9px;margin-bottom:16px;font-size:14px}
/* forms */
label.f{display:block;font-size:13px;font-weight:600;color:var(--tx2);margin:12px 0 5px}
input.f,select.f,textarea.f{width:100%;padding:10px 12px;border:1px solid #cfd8e3;border-radius:8px;font-size:15px;font-family:inherit;background:#fff}
input.f:focus,select.f:focus,textarea.f:focus{outline:2px solid rgba(58,166,85,.35);border-color:var(--green)}
textarea.f{min-height:110px;resize:vertical}
.btn{display:inline-block;background:var(--navy);color:#fff;border:0;border-radius:8px;padding:10px 20px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--navy-d)}
.btn.green{background:var(--green)}.btn.green:hover{background:var(--green-d)}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid #cfd8e3}
.btn.danger{background:var(--red)}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:7px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.auth-box{max-width:430px;margin:40px auto}
.auth-box .card{padding:30px}
.auth-links{display:flex;justify-content:space-between;font-size:13px;margin-top:14px;color:var(--tx2)}
/* tables */
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{background:#f0f3f8;text-align:left;padding:9px 12px;font-size:12.5px;color:var(--tx2);border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
table.t tr:hover td{background:#fafbfd}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:700}
.b-navy{background:#e5ecf6;color:var(--navy)}
.b-green{background:#e4f4e9;color:#1d6b34}
.b-amber{background:#fdf3e2;color:#a06614}
.b-red{background:#fdeaea;color:#a33}
.b-gray{background:#eef1f5;color:var(--tx2)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:800px){.grid2,.grid3{grid-template-columns:1fr}}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.stat .n{font-size:26px;font-weight:800;color:var(--navy)}
.stat .l{font-size:12.5px;color:var(--tx2)}
.inline-form{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end}
.inline-form>div{flex:1;min-width:120px}
.muted{color:var(--tx2);font-size:13px}
code.k{background:#eef1f5;padding:2px 8px;border-radius:6px;font-weight:700;letter-spacing:1px}
/* calendar */
.cal{width:100%;border-collapse:collapse;table-layout:fixed}
.cal th{padding:7px 4px;font-size:12px;color:var(--tx2);border:1px solid var(--line);background:#f0f3f8}
.cal td{border:1px solid var(--line);vertical-align:top;height:96px;padding:4px;font-size:12px;background:#fff}
.cal td.out{background:#f7f9fb}
.cal td.paused{background:repeating-linear-gradient(45deg,#fdf4f4,#fdf4f4 8px,#fbecec 8px,#fbecec 16px)}
.cal .dnum{font-weight:700;font-size:12px;margin-bottom:3px}
.cal td.today .dnum{color:#fff;background:var(--green);border-radius:50%;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center}
.cal .ev{display:block;border-radius:5px;padding:2px 5px;margin-bottom:2px;color:#fff;font-size:11px;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cal .ev .st{opacity:.9}
.cal .ev.done{outline:2px solid rgba(29,107,52,.5)}
.cal .ev.miss{opacity:.55}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;margin:10px 0;color:var(--tx2)}
.legend .sw{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-right:4px}
/* timer */
.timer-hero{text-align:center;padding:36px 20px}
.timer-clock{font-size:72px;font-weight:800;letter-spacing:2px;color:var(--navy);font-variant-numeric:tabular-nums}
.timer-phase{font-size:15px;color:var(--tx2);margin-bottom:6px}
.timer-bar{height:10px;background:#e8edf4;border-radius:6px;overflow:hidden;max-width:520px;margin:18px auto}
.timer-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--blue));width:0%}
.sentence-count{font-size:13px;color:var(--tx2);text-align:right;margin-top:4px}
/* feedback/report body */
.mdbody h1,.mdbody h2,.mdbody h3,.mdbody h4{color:var(--navy);margin:18px 0 8px}
.mdbody h2{font-size:19px}.mdbody h3{font-size:16px}
.mdbody p{margin:8px 0}
.mdbody ul{margin:8px 0 8px 22px}
.mdbody table{border-collapse:collapse;width:100%;margin:10px 0;font-size:13.5px}
.mdbody td{border:1px solid var(--line);padding:8px 10px}
.mdbody code{background:#eef1f5;padding:1px 6px;border-radius:5px}
.score-big{font-size:40px;font-weight:800;color:var(--green-d)}
.score-big.low{color:var(--red)}
@media print{.topbar,.foot,.no-print{display:none!important}.wrap{margin:0;max-width:100%}.card{border:0;padding:0}}