.install-app-modal {
  position: fixed;
  inset: 0;
  z-index: 12050;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 18px;
  visibility: hidden;
  opacity: 0;
  background: rgba(0, 0, 0, .76);
  backdrop-filter: blur(12px);
  transition: opacity .22s ease, visibility .22s ease;
}

.install-app-modal.open { visibility: visible; opacity: 1; }

.install-app-sheet {
  position: relative;
  width: min(100%, 560px);
  max-height: min(88dvh, 780px);
  overflow-x: hidden;
  overflow-y: auto;
  padding: 20px;
  border: 1px solid rgba(177, 128, 255, .3);
  border-radius: 24px;
  color: #f7f4fb;
  background:
    radial-gradient(480px 260px at 8% 0, rgba(139, 78, 255, .19), transparent 68%),
    linear-gradient(155deg, #100d17, #07070a 52%, #0b0910);
  box-shadow: 0 -12px 70px rgba(0, 0, 0, .62), 0 0 0 1px rgba(255,255,255,.025) inset;
  transform: translateY(28px) scale(.985);
  transition: transform .26s cubic-bezier(.2,.8,.2,1);
}

.install-app-modal.open .install-app-sheet { transform: translateY(0) scale(1); }
.install-app-handle { width: 42px; height: 4px; margin: -8px auto 14px; border-radius: 99px; background: rgba(255,255,255,.18); }
.install-app-close { position: absolute; z-index: 2; top: 14px; right: 14px; width: 32px; height: 32px; border: 1px solid rgba(255,255,255,.09); border-radius: 10px; color: #a9a2b2; background: rgba(255,255,255,.035); font-size: 19px; cursor: pointer; }
.install-app-close:hover { color: #fff; border-color: rgba(184,134,255,.4); }

.install-app-header { display: grid; grid-template-columns: 58px minmax(0,1fr); gap: 13px; align-items: center; padding-right: 34px; }
.install-app-header img { width: 58px; height: 58px; border: 1px solid rgba(190,146,255,.35); border-radius: 17px; object-fit: cover; box-shadow: 0 10px 30px rgba(103,53,205,.26); }
.install-app-header span { display: block; margin-bottom: 4px; color: #b887ff; font-size: 8px; font-weight: 950; letter-spacing: .15em; }
.install-app-header h2 { margin: 0; font-size: clamp(20px, 5.6vw, 27px); line-height: 1.05; letter-spacing: -.035em; }
.install-app-lead { margin: 14px 0; color: #aea7b8; font-size: 11px; line-height: 1.55; }

.install-platform-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; padding: 4px; border: 1px solid rgba(255,255,255,.075); border-radius: 12px; background: rgba(0,0,0,.24); }
.install-platform-tabs button { min-height: 36px; border: 0; border-radius: 8px; color: #81798d; background: transparent; font-size: 10px; font-weight: 900; cursor: pointer; }
.install-platform-tabs button.active { color: #fff; background: linear-gradient(135deg, rgba(135,74,239,.66), rgba(96,52,173,.64)); box-shadow: 0 4px 18px rgba(91,46,180,.22); }

.install-guide { margin-top: 12px; }
.install-guide-intro { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.install-guide-intro p { margin: 0; max-width: 66%; color: #91899d; font-size: 9px; line-height: 1.4; text-align: right; }
.install-browser-pill { flex: 0 0 auto; padding: 6px 8px; border: 1px solid rgba(172,115,255,.22); border-radius: 999px; color: #cfadff; background: rgba(128,71,222,.1); font-size: 8px; font-weight: 850; }
.install-browser-tip { display: flex; align-items: flex-start; flex-direction: column; gap: 3px; margin-bottom: 9px; padding: 9px 10px; border: 1px solid rgba(98,216,154,.16); border-radius: 10px; background: rgba(68,189,125,.055); }
.install-browser-tip b { color: #7ee1aa; font-size: 9px; }
.install-browser-tip span { color: #9d96a7; font-size: 8px; line-height: 1.45; }

.install-step-list { display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; }
.install-step-list li { display: grid; grid-template-columns: 27px minmax(0,1fr); gap: 9px; align-items: start; padding: 9px; border: 1px solid rgba(255,255,255,.07); border-radius: 11px; background: rgba(255,255,255,.023); }
.install-step-list em { display: grid; width: 27px; height: 27px; place-items: center; border: 1px solid rgba(170,113,255,.3); border-radius: 9px; color: #d4b7ff; background: rgba(127,68,224,.12); font-size: 9px; font-style: normal; font-weight: 950; }
.install-step-list b { display: block; margin: 1px 0 3px; color: #f2eff6; font-size: 10px; }
.install-step-list span { display: block; color: #918a9c; font-size: 8px; line-height: 1.45; }
.install-step-list b,.install-step-list span,.install-browser-tip span { overflow-wrap: anywhere; }

.install-browser-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-top: 8px; }
.install-browser-grid > span { padding: 7px 8px; border: 1px solid rgba(255,255,255,.055); border-radius: 9px; background: rgba(0,0,0,.17); }
.install-browser-grid > span.active { border-color: rgba(171,115,255,.32); background: rgba(123,65,218,.1); }
.install-browser-grid b,.install-browser-grid small { display: block; }
.install-browser-grid b { color: #d8d3df; font-size: 8px; }
.install-browser-grid small { margin-top: 2px; color: #777080; font-size: 7px; line-height: 1.35; }

.install-app-actions { display: grid; grid-template-columns: 1.25fr .75fr; gap: 7px; margin-top: 13px; }
.install-app-actions button { min-height: 42px; border-radius: 11px; font-size: 10px; font-weight: 950; cursor: pointer; }
.install-app-actions button { min-width: 0; padding: 0 8px; }
.install-app-primary { border: 1px solid rgba(190,150,255,.32); color: #fff; background: linear-gradient(135deg, #9254f4, #6d37c5); box-shadow: 0 10px 25px rgba(102,52,192,.23); }
.install-app-secondary { border: 1px solid rgba(255,255,255,.085); color: #9991a2; background: rgba(255,255,255,.025); }
.install-app-primary:disabled { opacity: .65; cursor: wait; }
.install-app-fineprint { margin: 9px 0 0; color: #696270; font-size: 7px; line-height: 1.4; text-align: center; }

@media (min-width: 901px) { .install-app-modal { display: none !important; } }
@media (max-width: 430px) {
  .install-app-modal { padding: 8px; }
  .install-app-sheet { max-height: 92dvh; padding: 17px 14px 15px; border-radius: 21px; }
  .install-app-header { grid-template-columns: 50px minmax(0,1fr); gap: 11px; }
  .install-app-header img { width: 50px; height: 50px; border-radius: 15px; }
  .install-app-header h2 { font-size: 20px; }
  .install-app-lead { margin: 11px 0; font-size: 10px; }
  .install-step-list li { padding: 8px; }
  .install-browser-grid { grid-template-columns: 1fr 1fr; }
  .install-app-actions { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .install-app-modal,.install-app-sheet { transition: none !important; }
}