:root{--ink:#14232b;--sub:#5b6b74;--line:#e3e9ec;--bg:#f4f7f8;--card:#fff;--teal:#16a394;--teal-d:#0f7f74;--coral:#e8553e;--leaf:#2f9e5b;
  --r1:#E8553E;--r2:#F5A623;--r3:#F7C948;--r4:#5BBF6A;--r5:#3BA7E0;--r6:#8E6CD8;--ease:cubic-bezier(.2,.8,.2,1);--pop:cubic-bezier(.3,1.5,.5,1)}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font:16px/1.55 "Plus Jakarta Sans","Hiragino Sans","Noto Sans JP",system-ui,sans-serif}
body{display:grid;place-items:center;min-height:100dvh;padding:24px 16px;background:radial-gradient(1200px 600px at 10% -10%,#e6f6f3,transparent 60%),radial-gradient(900px 500px at 110% 110%,#fdf0e6,transparent 60%),var(--bg)}
.door{width:100%;max-width:420px}
.brand{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:18px;font-size:19px;letter-spacing:-.01em}
.mark{display:inline-flex;gap:3px}.mark i{width:7px;height:18px;border-radius:4px;background:var(--r1)}.mark i:nth-child(2){background:var(--r3);height:22px}.mark i:nth-child(3){background:var(--r5)}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px 26px 22px;box-shadow:0 30px 60px -40px rgba(20,35,43,.35),0 2px 6px rgba(20,35,43,.04);overflow:hidden}
.step{display:none}.step.on{display:block;animation:in .38s var(--ease)}
@keyframes in{from{opacity:0;transform:translateY(8px)}}
h1{font-size:24px;line-height:1.2;margin:0 0 6px;font-weight:800;letter-spacing:-.015em}
.lede{color:var(--sub);margin:0 0 18px;font-size:14.5px}.lede b{color:var(--ink);word-break:break-all}
.lbl{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--sub);margin-bottom:6px}
input[type=email]{width:100%;font:inherit;font-size:17px;padding:13px 14px;border:1.5px solid var(--line);border-radius:14px;outline:none;transition:border-color .2s,box-shadow .2s}
input[type=email]:focus{border-color:var(--teal);box-shadow:0 0 0 4px #16a3941f}
.go{display:block;width:100%;margin-top:14px;padding:14px;border:0;border-radius:14px;background:var(--ink);color:#fff;font:inherit;font-weight:800;font-size:16px;cursor:pointer;position:relative;overflow:hidden;transition:transform .15s var(--pop),background .2s}
.go:active{transform:scale(.98)}.go[disabled]{cursor:default}
.go.busy::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:100%;background:linear-gradient(90deg,var(--r1),var(--r2),var(--r3),var(--r4),var(--r5),var(--r6));transform-origin:left;animation:fill 1.6s var(--ease) infinite}
@keyframes fill{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.digits{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.digits input{width:100%;min-width:0;text-align:center;font:inherit;font-size:24px;font-weight:800;padding:12px 0;border:1.5px solid var(--line);border-radius:12px;outline:none;transition:border-color .2s,transform .2s var(--pop)}
.digits input:focus{border-color:var(--teal);box-shadow:0 0 0 4px #16a3941f}.digits input.filled{border-color:#b9d9d4;transform:translateY(-1px)}
.digits.shake{animation:shake .35s}@keyframes shake{25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.schools{display:grid;gap:10px}.schools button{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:14px;border:1.5px solid var(--line);border-radius:14px;background:#fff;font:inherit;font-weight:700;cursor:pointer;transition:border-color .2s,transform .15s var(--pop)}
.schools button:hover{border-color:var(--teal)}.schools button:active{transform:scale(.98)}
.schools .ini{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#e6f6f3;color:var(--teal-d);font-weight:800}
.aside{text-align:center;margin:14px 0 0;font-size:13.5px}.aside a{color:var(--sub)}
.msg{min-height:0;margin:0;font-size:14px;color:var(--coral)}.msg:not(:empty){margin-top:12px}
.hello{font-size:21px;font-weight:800;line-height:1.3;margin:6px 0 16px}.hello small{display:block;font-size:14px;font-weight:600;color:var(--sub);margin-top:4px}
.bar{height:6px;border-radius:6px;background:#eef3f4;overflow:hidden}.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--r1),var(--r2),var(--r3),var(--r4),var(--r5),var(--r6));animation:go 1.1s var(--ease) forwards}
@keyframes go{to{width:100%}}
.foot{color:var(--sub);font-size:12.5px;text-align:center;margin:16px 6px 0;line-height:1.6}
.lang{border:0;background:none;color:var(--teal-d);font:inherit;font-weight:700;cursor:pointer;margin-left:6px;padding:0}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}