:root{font-family:Inter,Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#111827;background:#f5f7fb;line-height:1.5}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input{font:inherit}.hidden{display:none!important}.landing{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:4rem;max-width:1120px;margin:auto;padding:4rem 2rem}.brand{display:flex;align-items:center;gap:.65rem;font-weight:850;letter-spacing:.08em}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;color:#fff;background:linear-gradient(135deg,#2563eb,#7c3aed);letter-spacing:0}.eyebrow{margin:3rem 0 .5rem;color:#2563eb;font-weight:750}.hero h1{font-size:clamp(2.5rem,6vw,5rem);line-height:1.08;letter-spacing:-.055em;margin:.25rem 0 1.5rem}.hero-copy{max-width:570px;color:#667085;font-size:1.1rem}.hero-actions{display:flex;gap:.75rem;margin-top:2rem}.primary,.secondary{border:0;border-radius:14px;padding:.9rem 1.2rem;font-weight:750;cursor:pointer}.primary{color:white;background:#111827;box-shadow:0 8px 20px #11182725}.secondary{color:#111827;background:white;border:1px solid #d8dee9}.text-button,.icon-button{border:0;background:none;color:#526071;cursor:pointer;padding:.75rem 0}.phone-wrap{display:grid;place-items:center}.phone{position:relative;width:min(330px,75vw);padding:11px;border-radius:45px;background:#101218;box-shadow:0 35px 80px #1f293735}.phone img{width:100%;display:block;border-radius:35px}.phone-notch{position:absolute;z-index:2;left:50%;top:20px;transform:translateX(-50%);width:90px;height:24px;border-radius:20px;background:#101218}.app{max-width:720px;margin:auto;padding:env(safe-area-inset-top) 18px calc(30px + env(safe-area-inset-bottom))}.app-header{height:74px;display:flex;align-items:center;justify-content:space-between}.compact{font-size:.9rem}.panel,.check-card,.summary-grid article{background:#fff;border:1px solid #e7eaf0;border-radius:22px;box-shadow:0 8px 30px #25324a0b}.auth-panel{max-width:430px;margin:8vh auto;padding:24px}.tabs{display:flex;background:#f1f4f8;padding:4px;border-radius:12px;margin-bottom:22px}.tab{flex:1;border:0;background:transparent;padding:.75rem;border-radius:9px;font-weight:700;color:#667085}.tab.active{background:white;color:#111827;box-shadow:0 2px 8px #11182712}.form{display:grid;gap:16px}.form label{display:grid;gap:7px;font-size:.9rem;font-weight:700}.form input,.inline-form input{width:100%;border:1px solid #d5dbe5;border-radius:12px;padding:.85rem;background:#fff}.welcome{padding:25px 4px 14px}.welcome p{color:#667085;margin:0}.welcome h2{margin:.35rem 0;font-size:1.7rem}.check-card{padding:24px;text-align:center;background:linear-gradient(150deg,#fff,#f6f8ff)}.badge{display:inline-block;padding:.35rem .7rem;border-radius:99px;background:#fff1d6;color:#9a5c00;font-size:.8rem;font-weight:750}.badge.done{background:#dcfce7;color:#16723b}.check-title{font-size:1.15rem;font-weight:750}.check-button{width:160px;height:160px;border:0;border-radius:50%;background:linear-gradient(145deg,#2563eb,#6d28d9);color:#fff;box-shadow:0 18px 40px #4f46e54d;cursor:pointer;transition:.2s}.check-button:active{transform:scale(.97)}.check-button:disabled{filter:grayscale(.4);opacity:.7}.check-button span,.check-button small{display:block}.check-button span{font-size:2rem;font-weight:850}.muted{color:#788397;font-size:.9rem}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.summary-grid article{padding:18px}.summary-grid span{display:block;color:#667085;font-size:.85rem}.summary-grid strong{font-size:1.5rem}.records-panel,#adminPanel{padding:20px;margin-top:14px}.section-title{display:flex;align-items:center;justify-content:space-between}.section-title h3,.panel h3{margin:.2rem 0}.record{display:grid;grid-template-columns:1fr auto;gap:2px;padding:13px 0;border-bottom:1px solid #edf0f4}.record:last-child{border:0}.record small{color:#7b8798}.inline-form{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;margin-top:14px}.toast{position:fixed;z-index:20;left:50%;bottom:30px;transform:translate(-50%,20px);background:#111827;color:white;border-radius:12px;padding:.8rem 1rem;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}dialog{border:0;border-radius:20px;padding:24px;max-width:360px;box-shadow:0 25px 80px #1118274d}dialog::backdrop{background:#11182788}dialog .primary{width:100%;margin-top:15px}
@media(max-width:760px){.landing{grid-template-columns:1fr;text-align:center;padding:3rem 1.25rem;gap:2rem}.hero-copy{margin-inline:auto}.hero-actions{justify-content:center}.phone-wrap{order:-1}.phone{width:220px}.eyebrow{margin-top:1.5rem}.hero h1{font-size:2.55rem}.inline-form{grid-template-columns:1fr}.app{max-width:560px}}
@media(display-mode:standalone){#backToLanding{display:none}}
.home-brand{border:0;background:none;padding:0;color:inherit;cursor:pointer}
.install-dialog{max-width:420px;width:calc(100% - 32px)}.install-dialog h3{margin-top:0}.platform-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.platform-card{display:grid;gap:5px;text-align:left;padding:18px;border:1px solid #d8dee9;border-radius:16px;background:#fff;cursor:pointer}.platform-card:hover{border-color:#6366f1;background:#f8f8ff}.platform-card strong{font-size:1.1rem}.platform-card span{font-size:.82rem;color:#667085}.install-guide ol{padding-left:1.3rem;color:#475467}.install-guide li{margin:.65rem 0}.guide-back{border:0;background:none;color:#526071;padding:0 0 16px;cursor:pointer}.install-dialog .primary{width:100%;margin-top:10px}.apk-button{display:block;text-align:center;text-decoration:none}.guide-divider{display:flex;align-items:center;gap:10px;color:#98a2b3;font-size:.8rem;margin:15px 0}.guide-divider:before,.guide-divider:after{content:"";height:1px;flex:1;background:#e4e7ec}.install-note{font-size:.78rem;color:#7b8798;margin-bottom:0}.dialog-close{width:100%;padding-bottom:0}

/* Keep Korean headline words together instead of leaving one syllable alone. */
.hero h1{max-width:680px;font-size:clamp(2.5rem,5.4vw,4.75rem);word-break:keep-all;overflow-wrap:normal}
.hero-copy{word-break:keep-all}
.form .remember-row{display:flex;align-items:center;gap:9px;font-weight:600;color:#526071;cursor:pointer}.form .remember-row input{width:18px;height:18px;margin:0;accent-color:#4f46e5}
.loading-overlay{position:fixed;z-index:100;inset:0;display:grid;place-items:center;padding:24px;background:#11182780;backdrop-filter:blur(3px)}.loading-box{display:grid;justify-items:center;width:min(310px,100%);padding:28px 24px;border:1px solid #ffffff80;border-radius:22px;background:#fff;box-shadow:0 24px 70px #11182745;text-align:center}.loading-box strong{margin-top:14px;font-size:1.08rem}.loading-box p{margin:5px 0 0;color:#667085;font-size:.88rem}.loading-spinner{width:38px;height:38px;border:4px solid #e2e8f0;border-top-color:#4f46e5;border-radius:50%;animation:loading-spin .8s linear infinite}@keyframes loading-spin{to{transform:rotate(360deg)}}
@media(max-width:760px){.hero h1{font-size:2.55rem}}