:root{--navy:#12355b;--blue:#246bfd;--cyan:#eaf3ff;--ink:#182230;--muted:#667085;--line:#dfe5ec;--ok:#18794e;--warn:#b54708;--bg:#f4f7fb}*{box-sizing:border-box}body{margin:0;font-family:"Noto Sans Thai",Tahoma,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55}a{color:var(--blue);text-decoration:none}header{background:linear-gradient(120deg,var(--navy),#215e9b);color:#fff;padding:18px 0}.wrap{max-width:1120px;margin:auto;padding:0 20px}.top{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-size:1.1rem;font-weight:700}.nav{display:flex;gap:14px;flex-wrap:wrap}.nav a{color:#fff}.main{padding:28px 20px 60px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 5px 18px rgba(18,53,91,.06)}h1{font-size:1.8rem;line-height:1.3;margin:0 0 18px}h2{font-size:1.25rem;margin:0 0 12px}h3{font-size:1.05rem}.muted{color:var(--muted)}.metric{font-size:2rem;font-weight:800;color:var(--navy)}label{font-weight:600;display:block;margin:12px 0 5px}input,select,textarea{width:100%;padding:11px 12px;border:1px solid #b9c4d0;border-radius:9px;font:inherit;background:#fff}textarea{min-height:110px;resize:vertical}.btn{display:inline-block;border:0;border-radius:9px;padding:10px 15px;font:inherit;font-weight:700;cursor:pointer;background:var(--blue);color:#fff}.btn.secondary{background:#e8eef7;color:var(--navy)}.btn.danger{background:#b42318}.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}.notice{background:#fff7e8;border:1px solid #fedf89;color:#7a2e0e;padding:12px 15px;border-radius:10px;margin-bottom:16px}.success{background:#ecfdf3;border-color:#abefc6;color:#05603a}.table-wrap{overflow:auto;background:#fff;border-radius:14px;border:1px solid var(--line)}table{width:100%;border-collapse:collapse}th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:#eaf3ff;color:var(--navy);white-space:nowrap}.pill{display:inline-block;padding:3px 9px;border-radius:99px;background:#eef2f6;color:#344054;font-size:.86rem}.pill.ok{background:#dcfae6;color:#085d3a}.pill.wait{background:#fff2cc;color:#7a2e0e}.login{max-width:430px;margin:45px auto}.progress{height:10px;background:#e8edf3;border-radius:99px;overflow:hidden}.progress span{display:block;height:100%;background:var(--blue)}.mission{border-left:5px solid var(--blue)}footer{text-align:center;color:var(--muted);padding:24px}@media(max-width:640px){.top{align-items:flex-start;flex-direction:column}h1{font-size:1.5rem}.main{padding-left:12px;padding-right:12px}th,td{padding:9px;font-size:.92rem}}@media print{header,.no-print,footer{display:none!important}body{background:#fff;font-size:13px}.main{padding:0}.card,.table-wrap{box-shadow:none;border:0}.wrap{max-width:none;padding:0}a{color:#000}.page-break{break-before:page}h1{font-size:22px}}

.login-welcome{position:relative;padding-right:145px;min-height:390px}.login-mascot{position:absolute;right:14px;top:22px;width:125px;height:145px;object-fit:contain;filter:drop-shadow(0 10px 10px rgba(18,53,91,.16))}@media(max-width:520px){.login-welcome{padding-right:20px;padding-top:145px}.login-mascot{left:50%;right:auto;transform:translateX(-50%);top:10px;height:125px}}


/* colorful classroom theme */
:root{--navy:#073b91;--blue:#147ce5;--cyan:#dff5ff;--ink:#102e4a;--muted:#587186;--line:#c3e4f4;--ok:#00a867;--warn:#f28b00;--bg:#c9efff}
body{background:radial-gradient(circle at 10% 8%,rgba(255,255,255,.4),transparent 18%),linear-gradient(145deg,#bcecff,#ecfbff);min-height:100vh}
header{background:linear-gradient(115deg,#075ac5,#118ee8 55%,#00a99a);border-bottom:6px solid #fff;box-shadow:0 6px 0 rgba(5,75,151,.23);position:relative;overflow:hidden}
header:after{content:'✦  ◫  ∑  ✧  ✓';position:absolute;right:4%;top:4px;color:rgba(255,255,255,.22);font-size:38px;letter-spacing:22px}
.brand{font-size:1.35rem;font-weight:900;text-shadow:0 3px 0 #06469b;position:relative;z-index:1}.nav{position:relative;z-index:1}.nav a{background:rgba(255,255,255,.16);padding:7px 11px;border-radius:99px;font-weight:800}.nav a:hover{background:#fff;color:#075ac5}
.card,.table-wrap{border:3px solid #fff;box-shadow:0 8px 0 rgba(5,82,155,.14),0 14px 28px rgba(5,72,135,.12)}
.btn{background:linear-gradient(135deg,#147ce5,#075ac5);border:3px solid #fff;box-shadow:0 4px 0 #064899}.btn:hover{transform:translateY(-1px)}.btn.secondary{background:linear-gradient(135deg,#ff3e7a,#ff7653);color:#fff;box-shadow:0 4px 0 #bf2058}.pill{background:#fff5a9;color:#714600;border:2px solid #f3c22a;font-weight:900}
.mission:nth-child(6n+1){border-left:9px solid #ff3e7a}.mission:nth-child(6n+2){border-left:9px solid #167ee8}.mission:nth-child(6n+3){border-left:9px solid #00a867}.mission:nth-child(6n+4){border-left:9px solid #ff8a00}.mission:nth-child(6n+5){border-left:9px solid #7a3bd6}.mission:nth-child(6n+6){border-left:9px solid #00a5a8}
.login-welcome{background:linear-gradient(145deg,#fff,#eefaff);border:5px solid #fff;border-top:12px solid #ff3e7a;max-width:540px;padding-right:190px}.login-mascot{width:180px;height:230px;right:5px;top:70px}.login-welcome h1{font-size:2.2rem;color:#073b91;text-shadow:2px 2px 0 #d4edff}.metric{color:#073b91}.notice{border-width:3px}
footer{background:#0877cc;color:#fff;padding:22px;font-weight:800;margin-top:30px}

.curriculum-hero{display:grid;grid-template-columns:1.5fr .7fr;align-items:center;gap:24px;padding:30px;border-radius:28px;background:linear-gradient(135deg,#16c7d9 0%,#2583f7 58%,#6a55e8 100%);color:#fff;box-shadow:0 18px 42px rgba(24,93,173,.22);overflow:hidden}.curriculum-hero h1{font-size:clamp(32px,5vw,58px);margin:12px 0 8px;color:#fff;text-shadow:0 3px 0 rgba(8,54,132,.35)}.curriculum-hero p{font-size:19px;line-height:1.65}.curriculum-hero img{width:100%;max-height:310px;object-fit:contain;filter:drop-shadow(0 12px 18px rgba(0,38,90,.25))}.curriculum-banner{margin:24px 0;border-radius:24px;overflow:hidden;box-shadow:0 14px 32px rgba(22,78,140,.18)}.curriculum-banner img{display:block;width:100%;height:auto}.unit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:16px 0 28px}.unit-card{position:relative;padding:22px;border-radius:22px;background:#fff;box-shadow:0 10px 24px rgba(15,60,120,.12);border-top:8px solid #2583f7}.unit-card.pink{border-color:#ff4f93}.unit-card.blue{border-color:#2583f7}.unit-card.green{border-color:#16b878}.unit-card.orange{border-color:#ff8a18}.unit-card.purple{border-color:#8a58e8}.unit-card.teal{border-color:#08a6ad}.unit-number{position:absolute;right:16px;top:14px;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#102a72;color:#fff;font-size:24px;font-weight:800}.unit-card h3{padding-right:52px;margin-top:0}.unit-card a{font-weight:800;color:#1158bf}.example-strip{padding:24px;margin:28px 0;border-radius:24px;background:linear-gradient(135deg,#fff0ac,#ffd9ea)}.example-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.example-grid>div{display:flex;flex-direction:column;gap:8px;background:#fff;padding:18px;border-radius:18px;box-shadow:0 8px 18px rgba(90,54,16,.1)}.example-grid code{display:block;padding:12px;border-radius:10px;background:#101a35;color:#65f4d2;overflow-wrap:anywhere}.plan-table th:first-child,.plan-table td:first-child,.plan-table th:nth-child(2),.plan-table td:nth-child(2),.plan-table th:last-child,.plan-table td:last-child{text-align:center;white-space:nowrap}.unit-dot{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#2583f7;color:#fff;font-weight:800}.u1{background:#ff4f93}.u2{background:#2583f7}.u3{background:#16b878}.u4{background:#ff8a18}.u5{background:#8a58e8}.u6{background:#08a6ad}@media(max-width:820px){.curriculum-hero{grid-template-columns:1fr}.curriculum-hero img{max-height:220px}.unit-grid,.example-grid{grid-template-columns:1fr}}