:root {
  font-family: Arial, "Noto Sans KR", "Nanum Gothic", sans-serif;
  color: #eef2f0;
  background: #1f2228;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }
body { overflow: hidden; }
button { font: inherit; }

#installView, #appView { display: none; }
body.browser-mode #installView { display: flex; }
body.app-mode #appView { display: flex; }

#installView {
  width: 100%; height: 100%; align-items: center; justify-content: center;
  padding: max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  background: radial-gradient(circle at top, #31363f 0%, #202329 55%, #17191e 100%);
}
.install-card {
  width: min(440px, 100%); padding: 48px 40px; border: 1px solid #3b414b;
  border-radius: 20px; background: rgba(31,34,40,.96); box-shadow: 0 24px 60px rgba(0,0,0,.36); text-align: center;
}
.install-logo { display: block; width: 96px; height: 96px; margin: 0 auto 24px; border-radius: 20px; }
.install-card h1 { margin: 0; font-size: 32px; letter-spacing: -.5px; }
.install-description { margin: 16px 0 30px; color: #aeb5bf; font-size: 16px; line-height: 1.7; }
#installButton { width: 100%; padding: 15px 20px; border: 0; border-radius: 10px; background: #369a68; color: #fff; font-weight: 700; cursor: pointer; }
#installButton:hover { background: #42ad79; }
#installButton:disabled { cursor: default; opacity: .6; }
.install-guide { margin: 18px 0 0; color: #8f97a2; font-size: 13px; line-height: 1.6; }

#appView {
  flex-direction: column; width: 100%; height: 100%; min-width: 300px; min-height: 440px;
  background: #1f2228;
}

.hub-header {
  min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 0 24px; border-bottom: 1px solid #30343c; background: #202329;
  -webkit-app-region: drag;
}
.hub-brand { display: flex; align-items: center; gap: 11px; min-width: 0; font-size: 16px; font-weight: 700; letter-spacing: -.2px; }
.hub-mark { width: 32px; height: 32px; border-radius: 8px; flex: 0 0 auto; }
.monas-brand { display: flex; align-items: center; justify-content: flex-end; min-width: 92px; }
.monas-logo { display: block; width: 104px; max-height: 25px; object-fit: contain; object-position: right center; opacity: .92; }
.monas-logo-fallback { color: #eef2f0; font-size: 18px; font-weight: 700; letter-spacing: 2px; }

.hub-content { flex: 1; min-height: 0; overflow: auto; padding: 26px 24px 32px; }
.section-heading { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; }
.section-heading h1 { margin: 0; font-size: 20px; font-weight: 700; }
.section-heading span { color: #818995; font-size: 12px; }
.app-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(126px, 126px)); gap: 16px; align-items: start; }
.app-card {
  width: 126px; min-height: 158px; display: flex; flex-direction: column; align-items: center;
  padding: 14px 10px 12px; border: 1px solid transparent; border-radius: 16px;
  background: transparent; color: inherit; cursor: pointer; text-align: center;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.app-card:hover { background: #292d34; border-color: #3a4049; transform: translateY(-2px); }
.app-card:active { transform: translateY(0); }
.app-card:focus-visible { outline: 2px solid #52c28a; outline-offset: 3px; }
.app-icon {
  position: relative; width: 88px; height: 88px; display: block; margin-bottom: 13px;
  border: 1px solid #474e59; border-radius: 20px; background: linear-gradient(145deg,#303640,#252a31);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 10px 24px rgba(0,0,0,.2);
}
.app-icon-sheet { position: absolute; left: 25px; top: 18px; width: 38px; height: 51px; border: 2px solid #74d8a4; border-radius: 5px; background: rgba(82,194,138,.08); }
.app-icon-sheet::after { content: ""; position: absolute; right: -2px; top: -2px; width: 12px; height: 12px; border-left: 2px solid #74d8a4; border-bottom: 2px solid #74d8a4; background: #2d333b; clip-path: polygon(0 0,100% 100%,0 100%); }
.app-icon-line { position: absolute; left: 33px; height: 2px; border-radius: 2px; background: #74d8a4; opacity: .9; }
.app-icon-line--1 { top: 35px; width: 23px; }
.app-icon-line--2 { top: 43px; width: 19px; }
.app-icon-line--3 { top: 51px; width: 22px; }
.app-name { font-size: 14px; font-weight: 700; line-height: 1.35; }
.app-description { margin-top: 4px; color: #858d98; font-size: 11px; line-height: 1.4; }

.hub-footer { min-height: 34px; display: flex; align-items: center; gap: 7px; padding: 0 16px; border-top: 1px solid #30343c; color: #7f8792; font-size: 11px; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: #52c28a; box-shadow: 0 0 8px rgba(82,194,138,.55); }

@media (max-width: 420px) {
  .hub-header { padding: 0 16px; }
  .hub-brand span { display: none; }
  .hub-content { padding: 22px 16px 28px; }
  .app-list { grid-template-columns: repeat(auto-fill, minmax(110px, 110px)); gap: 10px; }
  .app-card { width: 110px; }
}