/* ================================================================
   บ้านครูอ้อย — สไตล์ส่วนสมาชิก (สมัครสมาชิก / พอร์ทัลผู้ปกครอง)
   ต่อยอดจากโทนสีของหน้าแรก
   ================================================================ */
:root{
  --sky-50:#F2FAFF; --sky-100:#E1F3FE; --sky-200:#BFE6FC; --sky-300:#8FD4F8;
  --sky-400:#4FBEF0; --sky-500:#26A5E0; --sky-600:#1187C4; --sky-700:#0C6B9E;
  --ink:#0E3B57; --ink-soft:#3E6B85;
  --sun:#FFC94D; --peach:#FF9A76; --mint:#5FD6A8;
  --line:#06C755;
  --shadow-sm:0 2px 8px rgba(14,59,87,.06);
  --shadow:0 10px 28px rgba(14,59,87,.10);
  --shadow-lg:0 20px 50px rgba(14,59,87,.14);
  --r:22px; --r-lg:32px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:'Prompt','Noto Sans Thai',system-ui,-apple-system,'Segoe UI',sans-serif;
  color:var(--ink);background:var(--sky-50);line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.muted{color:var(--ink-soft);font-size:.92rem}
.req{color:#E8663C}

/* ---------- แถบบน ---------- */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
     backdrop-filter:blur(14px);border-bottom:1px solid var(--sky-100)}
.top-in{width:min(1000px,92vw);margin:0 auto;display:flex;align-items:center;
        justify-content:space-between;height:66px;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700}
.brand i{width:40px;height:40px;border-radius:14px;flex:none;font-style:normal;
  background:linear-gradient(140deg,var(--sky-400),var(--sky-600));
  display:grid;place-items:center;font-size:1.15rem;box-shadow:0 6px 14px rgba(18,135,196,.3)}
.brand b{display:block;font-size:1rem;line-height:1.2}
.brand small{display:block;font-size:.63rem;letter-spacing:.16em;color:var(--sky-600);font-weight:500}
.who{display:flex;align-items:center;gap:.6rem;font-size:.88rem}
.who img{width:34px;height:34px;border-radius:50%;object-fit:cover;border:2px solid var(--sky-200)}
.who-name{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- ปุ่ม ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.78rem 1.5rem;border-radius:999px;font-weight:600;font-size:.97rem;
  border:2px solid transparent;cursor:pointer;transition:.25s;font-family:inherit;width:100%}
.btn:hover{transform:translateY(-2px)}
.btn+.btn{margin-top:.6rem}
.btn-line{background:var(--line);color:#fff;box-shadow:0 8px 20px rgba(6,199,85,.32)}
.btn-primary{background:linear-gradient(135deg,var(--sky-500),var(--sky-600));color:#fff;
             box-shadow:0 8px 20px rgba(18,135,196,.3)}
.btn-ghost{background:#fff;color:var(--sky-700);border-color:var(--sky-200)}
.btn-ghost:hover{background:var(--sky-100)}
.btn-sm{padding:.45rem .95rem;font-size:.84rem;width:auto}

/* ---------- หน้าสมัครสมาชิก ---------- */
.reg-wrap{width:min(560px,92vw);margin:0 auto;padding:2.2rem 0 4rem}
.reg-head{text-align:center;margin-bottom:1.6rem}
.reg-emoji{font-size:3rem;display:block;margin-bottom:.4rem}
.reg-head h1{font-family:'Mali',cursive;font-size:1.7rem;line-height:1.4}
.reg-head p{color:var(--ink-soft);font-size:.93rem}

.steps{list-style:none;display:flex;gap:.4rem;margin-bottom:1.4rem}
.steps li{flex:1;text-align:center;font-size:.76rem;color:var(--ink-soft);position:relative}
.steps li b{display:grid;place-items:center;width:30px;height:30px;margin:0 auto .3rem;
  border-radius:50%;background:#fff;border:2px solid var(--sky-200);color:var(--sky-600);
  font-size:.85rem;position:relative;z-index:1}
.steps li::before{content:"";position:absolute;top:15px;left:-50%;width:100%;height:2px;background:var(--sky-200)}
.steps li:first-child::before{display:none}
.steps li.now b{background:var(--sky-600);border-color:var(--sky-600);color:#fff}
.steps li.now{color:var(--sky-700);font-weight:600}
.steps li.done b{background:var(--mint);border-color:var(--mint);color:#fff}

.card{background:#fff;border-radius:var(--r-lg);padding:1.9rem 1.8rem;box-shadow:var(--shadow-lg)}
.card.center{text-align:center}
.card h2{font-family:'Mali',cursive;font-size:1.25rem;margin-bottom:.5rem}
.card h2+.muted{margin-bottom:1.3rem}
.card form h2{margin-top:1.6rem}
.card form h2:first-child{margin-top:0}

.qr-box{display:flex;gap:1.1rem;align-items:center;background:var(--sky-50);
        border-radius:var(--r);padding:1.1rem;margin-bottom:1.3rem}
.qr-box img{border-radius:14px;background:#fff;flex:none}
.qr-box b{display:block;font-size:1.15rem;color:var(--sky-700)}

.me{display:flex;gap:.8rem;align-items:center;background:var(--sky-50);
    border-radius:var(--r);padding:.85rem 1.1rem;margin-bottom:1.4rem}
.me img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid var(--sky-200);flex:none}
.me b{display:block}

label{display:block;margin-bottom:1rem;font-size:.92rem;font-weight:500}
input,select{width:100%;margin-top:.3rem;padding:.75rem 1rem;border-radius:14px;
  border:2px solid var(--sky-200);background:var(--sky-50);
  font-family:inherit;font-size:1rem;color:var(--ink);transition:.2s}
input:focus,select:focus{outline:none;border-color:var(--sky-500);background:#fff}
label small{display:block;margin-top:.25rem;font-weight:400}

.kid{background:var(--sky-50);border:2px dashed var(--sky-200);border-radius:var(--r);
     padding:1.1rem 1.1rem .2rem;margin-bottom:.8rem;position:relative}
.kid-no{display:inline-flex;align-items:center;gap:.5rem;font-size:.8rem;font-weight:600;
        color:var(--sky-700);background:var(--sky-100);padding:.2rem .8rem;
        border-radius:999px;margin-bottom:.7rem}
.kid-del{border:none;background:none;color:#C4443B;cursor:pointer;font-size:.9rem;
         line-height:1;padding:0;font-family:inherit}
.btn-add{border-style:dashed;margin-bottom:1.4rem}
.btn-submit{margin-top:.4rem}
.err{background:#FFE9E9;color:#C4443B;border-radius:12px;padding:.65rem 1rem;
     font-size:.9rem;margin-bottom:.9rem;text-align:center}
.fineprint{font-size:.78rem;color:var(--ink-soft);text-align:center;margin-top:1rem;line-height:1.6}

.recap{background:var(--sky-50);border-radius:var(--r);padding:1rem 1.2rem;
       margin:1.2rem 0 1.4rem;text-align:left;font-size:.92rem}
.recap div{display:flex;justify-content:space-between;gap:1rem;padding:.2rem 0}
.recap span{color:var(--ink-soft);flex:none}
.recap b{font-weight:600;text-align:right}

@media(max-width:520px){
  .card{padding:1.5rem 1.2rem}
  .qr-box{flex-direction:column;text-align:center}
}

/* ================= พอร์ทัลผู้ปกครอง ================= */
.portal{width:min(1000px,92vw);margin:0 auto;padding:2rem 0 4rem}
.hello{margin-bottom:1.4rem}
.hello h1{font-family:'Mali',cursive;font-size:clamp(1.45rem,4vw,2rem);line-height:1.4}

.kid-tabs{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.4rem}
.kid-tabs a{padding:.5rem 1.2rem;border-radius:999px;border:2px solid var(--sky-200);
  background:#fff;color:var(--sky-700);font-weight:600;font-size:.92rem;transition:.2s}
.kid-tabs a:hover{background:var(--sky-100)}
.kid-tabs a.on{background:var(--sky-600);border-color:var(--sky-600);color:#fff}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:1.5rem}
.stat{background:#fff;border-radius:var(--r);padding:1.25rem 1.35rem;
      box-shadow:var(--shadow-sm);border-left:5px solid var(--sky-400)}
.stat em{font-style:normal;font-size:.82rem;color:var(--ink-soft);display:block;margin-bottom:.15rem}
.stat b{font-family:'Mali',cursive;font-size:1.85rem;line-height:1.25;color:var(--sky-700);display:block}
.stat b.sm{font-size:1.2rem;padding-top:.2rem}
.stat small{font-size:.8rem;color:var(--ink-soft)}
.stat.ok{border-left-color:var(--mint)}
.stat.warn{border-left-color:var(--sun)}
.stat.due{border-left-color:var(--peach)}

.panel{background:#fff;border-radius:var(--r-lg);padding:1.6rem 1.7rem;
       box-shadow:var(--shadow-sm);margin-bottom:1.2rem}
.panel>h2{font-family:'Mali',cursive;font-size:1.26rem;margin-bottom:1rem;
          display:flex;align-items:center;gap:.55rem}
.panel>h2 i{font-style:normal}
.panel.news{background:linear-gradient(135deg,#0C6B9E,#26A5E0);color:#fff}
.panel.news h2{color:#fff}
.n-item{padding:.7rem 0;border-bottom:1px solid rgba(255,255,255,.18)}
.n-item:last-child{border-bottom:none}
.n-item b{display:block}
.n-item span{font-size:.88rem;color:rgba(255,255,255,.88)}

.rows{display:grid;gap:.6rem}
.row{display:flex;gap:.9rem;align-items:flex-start;padding:.85rem 1rem;
     background:var(--sky-50);border-radius:16px;font-size:.92rem}
.row .date{flex:none;width:118px;color:var(--sky-700);font-weight:600;font-size:.85rem}
.row .body{flex:1;min-width:0}
.row .body b{display:block;font-weight:600}
.row .body span{color:var(--ink-soft);font-size:.86rem}
.lnk{color:var(--sky-600);text-decoration:underline}
.tag{flex:none;align-self:center;padding:.2rem .75rem;border-radius:999px;
     font-size:.78rem;font-weight:600;background:var(--sky-100);color:var(--sky-700);white-space:nowrap}
.tag.green{background:#E4F7EE;color:#1F8A62}
.tag.red{background:#FFE9E9;color:#C4443B}
.tag.amber{background:#FFF3D6;color:#9A6A00}
.score-bar{height:7px;border-radius:999px;background:var(--sky-100);overflow:hidden;margin-top:.4rem}
.score-bar i{display:block;height:100%;border-radius:999px;
             background:linear-gradient(90deg,var(--sky-400),var(--sky-600))}

.scroll-x{overflow-x:auto}
table.tbl{width:100%;border-collapse:collapse;font-size:.92rem;min-width:420px}
table.tbl th,table.tbl td{padding:.6rem .7rem;text-align:left;border-bottom:1px solid var(--sky-100)}
table.tbl th{color:var(--sky-700);font-weight:600;font-size:.85rem}
table.tbl tr:last-child td{border-bottom:none}
.empty{color:var(--ink-soft);font-size:.9rem}

@media(max-width:640px){
  .panel{padding:1.3rem 1.1rem}
  .row{flex-direction:column;gap:.3rem}
  .row .date{width:auto}
  .tag{align-self:flex-start}
  .who-name{display:none}
}

/* ---------- ขั้นเพิ่มเพื่อน: รองรับทุกอุปกรณ์ ---------- */
.ways{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:1.3rem}
.way{background:var(--sky-50);border:2px solid var(--sky-100);border-radius:var(--r);
     padding:1.1rem 1rem;text-align:center;display:flex;flex-direction:column;
     align-items:center;justify-content:flex-start;gap:.35rem}
.way-ico{font-size:1.7rem;line-height:1}
.way b{font-size:.98rem}
.way small{color:var(--ink-soft);font-size:.8rem;line-height:1.5;margin-bottom:.5rem}
.way .btn{margin-top:auto;padding-left:1rem;padding-right:1rem;white-space:nowrap}
.way .qr{border-radius:12px;background:#fff;padding:6px;max-width:100%;height:auto}
.way .oaid{font-size:.9rem;font-weight:600;color:var(--sky-700);margin-top:.35rem}
.way.dim{opacity:.55}
@media(max-width:560px){
  .ways{grid-template-columns:1fr}
  .way .qr{width:150px;height:150px}
}

/* ---------- เลือกคอร์สเรียน ---------- */
.flash{background:#E4F7EE;color:#1F8A62;border-radius:14px;padding:.7rem 1.1rem;
       margin-bottom:1rem;font-weight:600;font-size:.92rem}
.flash.warn{background:#FFF3D6;color:#9A6A00}
.courses{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.course{position:relative;background:var(--sky-50);border:2px solid var(--sky-100);
        border-radius:var(--r);padding:1.2rem 1.15rem;display:flex;flex-direction:column;gap:.4rem}
.course.hot{border-color:var(--sky-300);background:#fff;box-shadow:var(--shadow-sm)}
.ribbon{position:absolute;top:-11px;right:14px;background:var(--sun);color:#7A4E00;
        font-size:.72rem;font-weight:700;padding:.15rem .7rem;border-radius:999px}
.c-name{font-size:1.02rem;line-height:1.45}
.c-desc{font-size:.84rem;color:var(--ink-soft);line-height:1.6;margin-bottom:.2rem}
.c-price{font-family:'Mali',cursive;color:var(--sky-700);line-height:1.3}
.c-price .num{font-size:1.75rem;font-weight:700}
.c-price small{display:block;font-size:.78rem;color:var(--ink-soft);font-family:'Prompt',sans-serif}
.c-lv{font-size:.78rem;background:var(--sky-100);color:var(--sky-700);
      padding:.15rem .7rem;border-radius:999px;align-self:flex-start}
.c-hours{font-size:.84rem;margin:.3rem 0 0}
.c-hours input{margin-top:.2rem;padding:.5rem .8rem;font-size:.95rem}
.course .btn{margin-top:auto;padding-top:.6rem;padding-bottom:.6rem}

/* ── สรุปการเข้าเรียน ── */
.attsum{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:1rem}
.attsum div{background:var(--sky-50);border-radius:14px;padding:.7rem .9rem;text-align:center}
.attsum b{display:block;font-family:'Mali',cursive;font-size:1.5rem;color:var(--sky-600);line-height:1.25}
.attsum span{font-size:.78rem;color:var(--ink-soft)}

/* ── เส้นค่าเฉลี่ยห้องบนแถบคะแนน ── */
.score-bar{position:relative}
.score-bar u{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--ink-soft);
             opacity:.55;text-decoration:none;border-radius:2px}
.avg{display:block;margin-top:.35rem;font-size:.8rem;color:var(--ink-soft)}
.row .body i{font-style:normal;color:var(--sky-700)}
.tag.red{background:#FDEDEC;color:#C2453C}