:root {
  color-scheme: dark;
  --bg: #05070d;
  --panel: rgba(12, 18, 31, 0.9);
  --panel-strong: #101827;
  --text: #f4f7fb;
  --muted: #a9b4c7;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #66e8ff;
  --accent-2: #a78bfa;
  --danger: #ff8197;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 5%, rgba(102, 232, 255, 0.18), transparent 32rem),
    radial-gradient(circle at 85% 10%, rgba(167, 139, 250, 0.16), transparent 34rem),
    linear-gradient(135deg, #05070d 0%, #0a1020 52%, #030409 100%);
}

.hidden { display: none !important; }

.lock-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.lock-card {
  width: min(460px, 100%);
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(7, 11, 20, 0.76);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.44);
  backdrop-filter: blur(18px);
}

.brand-mark {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #031018;
  font-weight: 900;
  letter-spacing: -0.08em;
  margin-bottom: 1.2rem;
}

.eyebrow,
.app-category {
  margin: 0 0 0.45rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 800;
}

h1, h2, p { margin-top: 0; }
h1 { font-size: clamp(2.4rem, 8vw, 5rem); line-height: 0.95; letter-spacing: -0.07em; margin-bottom: 1rem; }
h2 { font-size: 1.35rem; letter-spacing: -0.03em; margin-bottom: 0.55rem; }
p { color: var(--muted); line-height: 1.65; }
code { color: var(--accent); }

.pin-form { display: grid; gap: 0.8rem; margin-top: 1.6rem; }
.pin-form label { color: var(--text); font-weight: 800; }
.pin-form input,
.toolbar input,
.toolbar select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  padding: 0.95rem 1rem;
  font: inherit;
  outline: none;
}
.pin-form input:focus,
.toolbar input:focus,
.toolbar select:focus { border-color: rgba(102, 232, 255, 0.8); box-shadow: 0 0 0 4px rgba(102, 232, 255, 0.1); }
button,
.launch-button {
  border: 0;
  border-radius: 16px;
  padding: 0.9rem 1rem;
  color: #041018;
  background: linear-gradient(135deg, var(--accent), #d6fffb);
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
  text-align: center;
}
.message { min-height: 1.2rem; margin: 0.2rem 0 0; }
.error { color: var(--danger); }

.vault-app { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: 3rem 0; }
.vault-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(5, 8, 15, 0.72);
}
.vault-header h1 { margin-bottom: 0.8rem; }
.ghost-button { background: rgba(255,255,255,0.08); color: var(--text); border: 1px solid var(--line); min-width: 90px; }
.toolbar { display: grid; grid-template-columns: 1fr minmax(220px, 280px); gap: 1rem; margin: 1rem 0; }
.app-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.app-card {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(13, 20, 35, 0.72);
}
.app-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: #06121d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 950;
}
.app-card-body { flex: 1; }
.status { display: inline-block; margin-top: 0.4rem; color: var(--text); background: rgba(255,255,255,0.08); border: 1px solid var(--line); padding: 0.35rem 0.7rem; border-radius: 999px; font-size: 0.78rem; }
.disabled { opacity: 0.5; cursor: not-allowed; }

@media (max-width: 900px) {
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar, .vault-header { grid-template-columns: 1fr; display: grid; }
}
@media (max-width: 620px) {
  .app-grid { grid-template-columns: 1fr; }
  .vault-app { width: min(100% - 1rem, 1180px); padding: 0.5rem 0 2rem; }
  .vault-header, .lock-card { border-radius: 22px; padding: 1.2rem; }
}