/* 다피티 — PT 횟수 관리 */
:root{
  --bg:#0f1116; --card:#171a21; --card2:#1d212a; --line:#252a34; --line2:#323844;
  --txt:#eef1f6; --sub:#9aa3b2; --dim:#6b7383;
  --key:#4de1a0;            /* 민트 — 다식단(라임)과 확실히 구분 */
  --key-d:#0f2a20;
  --warn:#ffb454; --bad:#ff6b6b; --plan:#5aa9ff;
  --r:12px; --r2:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--txt);
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Malgun Gothic",sans-serif;
  font-size:15px; line-height:1.55; -webkit-text-size-adjust:100%;
  word-break:keep-all; overflow-wrap:anywhere;
}
h1,h2,h3{margin:0;letter-spacing:-.02em;font-weight:800}
button{font-family:inherit}
.hide{display:none!important}
.screen{display:none}
.screen.on{display:block}
.hl{color:var(--key)}

/* ---------- 버튼 ---------- */
.btn{
  border:1px solid var(--line2); background:var(--card2); color:var(--txt);
  padding:11px 16px; border-radius:var(--r); font-size:14px; font-weight:700;
  cursor:pointer; transition:.15s;
}
.btn:hover{border-color:var(--key);color:var(--key)}
.btn.key{background:var(--key);border-color:var(--key);color:#08170f}
.btn.key:hover{filter:brightness(1.08);color:#08170f}
.btn.warn{background:transparent;border-color:var(--warn);color:var(--warn)}
.btn.warn:hover{background:var(--warn);color:#2b1c05}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#2b0808}
.btn.ghost{background:transparent}
.btn.wide{width:100%;margin-top:10px}
.btn.big{padding:16px;font-size:16px}
.btn.tiny{padding:6px 11px;font-size:12.5px;border-radius:9px}
.nav{
  width:32px;height:32px;border-radius:9px;border:1px solid var(--line2);
  background:var(--card2);color:var(--txt);font-size:17px;cursor:pointer;flex:0 0 auto;
}
.nav:hover{border-color:var(--key);color:var(--key)}

/* ---------- 입력 ---------- */
.inp{
  width:100%; padding:12px 14px; border-radius:var(--r);
  border:1px solid var(--line2); background:#11141a; color:var(--txt);
  font-size:15px; font-family:inherit; margin-bottom:4px;
}
.inp:focus{outline:none;border-color:var(--key)}
.inp.big{font-size:22px;font-weight:800;text-align:center;letter-spacing:.12em;padding:14px}
.fl{display:block;font-size:12.5px;color:var(--sub);font-weight:700;margin:14px 0 6px}
.sfx{color:var(--dim);font-weight:500}
.hint{font-size:12.5px;color:var(--dim);margin:8px 0 0;line-height:1.6}
.hint.center{text-align:center}

/* ---------- 입장 ---------- */
.gate-wrap{max-width:660px;margin:0 auto;padding:56px 20px 72px}
.gate-head{text-align:center;margin-bottom:32px}
.logo{font-size:15px;font-weight:900;color:var(--key)}
.gate-head h1{font-size:34px;margin:14px 0 12px;line-height:1.3}
.gate-head p{margin:0;color:var(--sub);font-size:14.5px;line-height:1.75}
.gate-step{display:none}
.gate-step.on{display:block;animation:rise .28s ease}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.pick{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pick-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:5px;text-align:left;cursor:pointer;
  padding:22px 20px 18px;border-radius:var(--r2);border:1px solid var(--line2);
  background:linear-gradient(160deg,var(--card2),var(--card));transition:.18s;color:var(--txt);
}
.pick-card:hover{border-color:var(--key);transform:translateY(-3px);box-shadow:0 12px 30px -14px rgba(77,225,160,.5)}
.pc-ico{font-size:32px;line-height:1;margin-bottom:6px}
.pick-card b{font-size:18px;font-weight:900}
.pick-card s{text-decoration:none;font-size:13px;color:var(--sub);line-height:1.6}
.pick-card em{font-style:normal;margin-top:10px;font-size:13px;font-weight:800;color:var(--key)}
.how{margin-top:34px;background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:24px 22px}
.how h2{font-size:16px;color:var(--key);margin-bottom:18px}
.how-steps{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:16px}
.how-steps li{display:flex;gap:14px;align-items:flex-start}
.how-steps i{
  flex:0 0 auto;width:27px;height:27px;border-radius:50%;background:var(--key);color:#08170f;
  display:flex;align-items:center;justify-content:center;font-style:normal;font-weight:900;font-size:14px;margin-top:1px;
}
.how-steps b{display:block;font-size:15px;margin-bottom:3px}
.how-steps s{text-decoration:none;display:block;font-size:13.5px;color:var(--sub);line-height:1.65}
.gate-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:22px}
.gc-title{font-size:19px;margin-bottom:6px}
.back-link{background:none;border:0;color:var(--sub);font-size:13.5px;font-weight:700;cursor:pointer;padding:0 0 14px}
.back-link:hover{color:var(--key)}
.or{display:flex;align-items:center;gap:12px;margin:20px 0 12px;color:var(--dim);font-size:12.5px}
.or:before,.or:after{content:"";flex:1;height:1px;background:var(--line)}
.gate-foot{text-align:center;color:var(--dim);font-size:12px;margin-top:22px}

/* ---------- 상단바 ---------- */
.topbar{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:12px 18px;border-bottom:1px solid var(--line);background:var(--card);
  position:sticky;top:0;z-index:20;
}
.top-l,.top-r{display:flex;align-items:center;gap:9px;min-width:0}
.logo.sm{font-size:15px;flex:0 0 auto}
.room-name{font-size:13px;color:var(--sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.demo-badge{background:var(--warn);color:#2b1c05;font-weight:900;font-size:11px;padding:3px 9px;border-radius:999px;flex:0 0 auto}

/* ---------- 선생님 레이아웃 ---------- */
.tr-body{display:grid;grid-template-columns:290px 1fr;gap:18px;padding:18px;max-width:1180px;margin:0 auto;align-items:start}
.side{background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:16px;position:sticky;top:70px}
.side-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.side-head h2{font-size:15px}
.cnt{color:var(--key);font-weight:900}
.side-foot{margin-top:12px;font-size:11.5px;color:var(--dim);line-height:1.6}
.st-list{display:flex;flex-direction:column;gap:7px;max-height:52vh;overflow:auto}
.st-item{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--card2);cursor:pointer;text-align:left;color:var(--txt);transition:.15s;
}
.st-item:hover{border-color:var(--line2)}
.st-item.on{border-color:var(--key);background:var(--key-d)}
.st-item .nm{flex:1;font-weight:700;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.st-item .lf{font-size:13px;font-weight:900;color:var(--key);flex:0 0 auto}
.st-item .lf.low{color:var(--bad)}
.st-item .lf.zero{color:var(--bad)}
.st-item .warnd{width:7px;height:7px;border-radius:50%;background:var(--bad);flex:0 0 auto}
.today-box{background:var(--key-d);border:1px solid var(--key);border-radius:var(--r);padding:11px 12px;margin-bottom:12px}
.today-box h4{margin:0 0 6px;font-size:12px;color:var(--key);font-weight:800}
.today-box .tb-row{font-size:13px;color:var(--txt);padding:2px 0}
.today-box .tb-row s{text-decoration:none;color:var(--sub)}

.main{min-width:0}
.empty{text-align:center;padding:70px 20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r2)}
.empty-ico{font-size:44px;margin-bottom:14px}
.empty h2{font-size:19px;margin-bottom:10px}
.empty p{color:var(--sub);font-size:14px;margin:0 0 18px;line-height:1.7}

/* ---------- 상세 헤더 ---------- */
.det-head{
  display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:20px;margin-bottom:14px;
}
.dh-l h1{font-size:24px;margin-bottom:9px}
.code-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.code-chip{
  font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;font-weight:800;letter-spacing:.1em;
  background:#11141a;border:1px solid var(--line2);border-radius:8px;padding:5px 11px;color:var(--key);
}
.dh-r{text-align:right}
.left-box{display:flex;align-items:baseline;gap:5px;justify-content:flex-end}
.lb-num{font-size:46px;font-weight:900;line-height:1;color:var(--key)}
.left-box.low .lb-num,.left-box.zero .lb-num{color:var(--bad)}
.lb-unit{font-size:15px;color:var(--sub);font-weight:700}
.lb-sub{font-size:12.5px;color:var(--dim);margin-top:6px}
.act-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:14px}

/* ---------- 카드 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r2);padding:18px;margin-bottom:14px}
.c-title{font-size:14px;color:var(--key);margin-bottom:12px}

/* ---------- 달력 ---------- */
.cal-head{display:flex;align-items:center;gap:9px;margin-bottom:12px}
.cal-head h3{flex:1;text-align:center;font-size:16px}
.cal-dow{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:5px}
.cal-dow span{text-align:center;font-size:11.5px;color:var(--dim);font-weight:700;padding:2px 0}
.cal-dow span:first-child{color:#ff8f8f}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.cell{
  position:relative;aspect-ratio:1;border-radius:10px;border:1px solid var(--line);
  background:var(--card2);cursor:pointer;padding:5px;transition:.13s;
  display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:2px;color:var(--txt);
}
.cell:hover{border-color:var(--key)}
.cell.pad{visibility:hidden;pointer-events:none}
.cell .d{font-size:12.5px;font-weight:700;line-height:1.2}
.cell.sun .d{color:#ff8f8f}
.cell.today{border-color:var(--key);border-width:2px}
.cell.today .d{color:var(--key)}
.cell.done{background:var(--key);border-color:var(--key)}
.cell.done .d{color:#08170f}
.cell.noshow{background:rgba(255,180,84,.18);border-color:var(--warn)}
.cell.noshow .d{color:var(--warn)}
.cell.plan{border-color:var(--plan);border-style:dashed}
.cell.plan .d{color:var(--plan)}
.cell .mk{font-size:11px;line-height:1}
.cell .pl{
  font-size:9px;line-height:1.15;color:var(--sub);text-align:center;
  max-width:100%;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.cell.done .pl{color:#0d2b1e}
.cell.ro{cursor:default}
.cell.ro:hover{border-color:var(--line)}
.cal-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;font-size:11.5px;color:var(--sub);align-items:center}
.cal-legend .dot{width:9px;height:9px;border-radius:3px;display:inline-block;margin-right:5px;vertical-align:-1px}
.dot.done{background:var(--key)}
.dot.noshow{background:var(--warn)}
.dot.plan{background:var(--plan)}
.lg-hint{color:var(--dim);margin-left:auto}

/* ---------- 결제 이력 ---------- */
.pay-list{display:flex;flex-direction:column;gap:7px}
.pay-row{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--card2);border-radius:10px;font-size:13.5px}
.pay-row .pd{color:var(--sub);flex:0 0 auto;font-size:12.5px}
.pay-row .pc{font-weight:900;color:var(--key)}
.pay-row .pm{color:var(--dim);font-size:12.5px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pay-row .px{background:none;border:0;color:var(--dim);cursor:pointer;font-size:15px;padding:0 3px}
.pay-row .px:hover{color:var(--bad)}
.mstat{display:flex;gap:22px;flex-wrap:wrap}
.mstat div{display:flex;flex-direction:column;gap:3px}
.mstat b{font-size:24px;font-weight:900;color:var(--key)}
.mstat span{font-size:12px;color:var(--sub)}

/* ---------- 수강생 화면 ---------- */
.st-wrap{max-width:520px;margin:0 auto;padding:20px 18px 60px}
.hero-left{
  background:linear-gradient(160deg,var(--card2),var(--card));
  border:1px solid var(--line2);border-radius:var(--r2);padding:26px 22px;text-align:center;margin-bottom:14px;
}
.hl-name{font-size:14px;color:var(--sub);font-weight:700}
.hl-num{display:flex;align-items:baseline;justify-content:center;gap:6px;margin:8px 0 4px}
.hl-num b{font-size:66px;font-weight:900;line-height:1;color:var(--key)}
.hl-num.low b,.hl-num.zero b{color:var(--bad)}
.hl-num span{font-size:17px;color:var(--sub);font-weight:700}
.hl-sub{font-size:13px;color:var(--dim)}
.hl-bar{height:6px;border-radius:99px;background:#11141a;margin-top:14px;overflow:hidden}
.hl-bar i{display:block;height:100%;background:var(--key);border-radius:99px;transition:width .4s}
.next-box{background:var(--card);border:1px solid var(--plan);border-radius:var(--r);padding:13px 15px;margin-bottom:14px}
.next-box h4{margin:0 0 4px;font-size:12px;color:var(--plan);font-weight:800}
.next-box p{margin:0;font-size:14.5px;font-weight:700}
.next-box s{text-decoration:none;display:block;font-size:13px;color:var(--sub);font-weight:500;margin-top:2px}

/* ---------- 모달 ---------- */
.modal-back{position:fixed;inset:0;background:rgba(0,0,0,.72);display:flex;align-items:center;justify-content:center;padding:18px;z-index:100}
.modal{background:var(--card);border:1px solid var(--line2);border-radius:var(--r2);padding:24px;max-width:420px;width:100%;max-height:88vh;overflow:auto}
.m-title{font-size:19px;margin-bottom:6px}
.m-desc{font-size:13.5px;color:var(--sub);margin:0;line-height:1.65}
.m-warn{font-size:12.5px;color:var(--warn);background:rgba(255,180,84,.1);border-radius:10px;padding:9px 12px;margin:16px 0 0}
.modal-btns{display:flex;gap:9px;justify-content:flex-end;margin-top:20px}
.modal p{margin:0 0 4px}
.quick{display:flex;gap:6px;margin-bottom:8px}
.quick button{
  flex:1;padding:9px 0;border-radius:9px;border:1px solid var(--line2);
  background:var(--card2);color:var(--txt);font-size:13px;font-weight:700;cursor:pointer;
}
.quick button:hover,.quick button.on{border-color:var(--key);color:var(--key)}
.day-acts{display:flex;gap:7px;margin-top:18px;flex-wrap:wrap}
.day-acts .btn{flex:1;min-width:104px;padding:11px 8px;font-size:13.5px}

/* ---------- 토스트 ---------- */
#toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);
  background:var(--key);color:#08170f;padding:12px 20px;border-radius:99px;
  font-size:14px;font-weight:800;opacity:0;pointer-events:none;transition:.25s;z-index:200;
  max-width:88vw;text-align:center;
}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast.bad{background:var(--bad);color:#fff}

/* ---------- 모바일 ---------- */
@media (max-width:900px){
  .tr-body{grid-template-columns:1fr;padding:14px;gap:14px}
  .side{position:static}
  .st-list{max-height:none;flex-direction:row;flex-wrap:wrap}
  .st-item{flex:1 1 150px}
}
@media (max-width:520px){
  .gate-wrap{padding:34px 18px 50px}
  .gate-head h1{font-size:26px}
  .pick{grid-template-columns:1fr}
  .pick-card{flex-direction:row;flex-wrap:wrap;align-items:center;padding:16px 18px;gap:0 14px}
  .pc-ico{font-size:26px;margin:0}
  .pick-card b{flex:1}
  .pick-card s,.pick-card em{flex-basis:100%}
  .pick-card s{margin-top:4px}
  .how{margin-top:24px;padding:20px 18px}
  .det-head{padding:16px}
  .dh-l h1{font-size:20px}
  .lb-num{font-size:38px}
  .hl-num b{font-size:56px}
  .cell{padding:3px}
  .cell .pl{display:none}
  .lg-hint{display:none}
  .card{padding:15px}
  .act-row .btn{flex:1}
}

/* ---------- 앱 설치 안내 ---------- */
.inst-cta{margin-top:14px}
.inst-cta h2{margin-bottom:8px}
.ic-lead{margin:0 0 16px;font-size:13.5px;color:var(--sub);line-height:1.7}
.ic-btns{display:flex;gap:9px;flex-wrap:wrap}
.ic-btns .btn{flex:1;min-width:150px}

.inst-hero{display:flex;align-items:center;gap:13px;margin-bottom:18px}
.inst-hero img{border-radius:12px;flex:0 0 auto}
.inst-hero b{display:block;font-size:16px;font-weight:900}
.inst-hero s{text-decoration:none;display:block;font-size:12.5px;color:var(--sub)}

.inst-steps{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:13px}
.inst-steps li{display:flex;gap:12px;align-items:flex-start}
.inst-steps i{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--key);color:#08170f;
  display:flex;align-items:center;justify-content:center;font-style:normal;font-weight:900;font-size:13px;margin-top:1px;
}
.inst-steps span{font-size:14px;line-height:1.6}
.inst-steps b{color:var(--key);font-weight:800}
.inst-acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.inst-acts .btn{flex:1;min-width:130px}

.inst-banner{
  display:flex;align-items:center;gap:11px;padding:12px 14px;margin-bottom:14px;
  background:var(--card);border:1px solid var(--key);border-radius:var(--r);
}
.ib-ico{font-size:22px;flex:0 0 auto}
.ib-txt{flex:1;min-width:0}
.ib-txt b{display:block;font-size:14px}
.ib-txt s{text-decoration:none;display:block;font-size:12px;color:var(--sub)}
.ib-x{background:none;border:0;color:var(--dim);font-size:20px;cursor:pointer;padding:0 2px;flex:0 0 auto;line-height:1}
.ib-x:hover{color:var(--txt)}

@media (max-width:520px){
  .ic-btns .btn,.inst-acts .btn{min-width:100%}
}