:root {
  --accent: #2563eb; /* blue */
  --edge: rgba(37,99,235,.45);
  --soft: rgba(255,255,255,.7);
  --ink: #0f172a;
}

html, body {
  height: 100%;
  background:
    radial-gradient(1200px 800px at 20% -10%, rgba(37,99,235,.15), transparent 70%),
    radial-gradient(1000px 700px at 110% 10%, rgba(37,99,235,.12), transparent 60%),
    linear-gradient(180deg, #f7f8fb 0%, #eef1f7 100%);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

.shell {
  max-width: 1160px;
  margin-inline: auto;
  padding: clamp(18px, 3vw, 28px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-top: 5vh;
}

.stage {
  background: rgba(255,255,255,.85);
  border-radius: 36px;
  box-shadow: 0 10px 30px rgba(16, 24, 40, .06), 0 2px 6px rgba(16,24,40,.04);
  border: 1px solid rgba(15, 23, 42, .06);
  padding: clamp(24px, 2.6vw, 38px);
  backdrop-filter: blur(8px);
  animation: fadeIn .7s ease-out both;
}
.tile {
  height: clamp(220px, 26vh, 300px);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,.68), rgba(255,255,255,.86));
  border: 1px solid var(--edge);
  box-shadow: 0 1px 0 rgba(255,255,255,.6) inset, 0 0 0 4px rgba(38,162,105,.04), 0 10px 24px rgba(38,162,105,.10);
  transition: transform .35s ease, box-shadow .35s ease;
  position: relative;
  overflow: hidden;
}
.tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 1px 0 rgba(255,255,255,.75) inset, 0 0 0 6px rgba(38,162,105,.06), 0 18px 42px rgba(38,162,105,.18); /* rgba(38,162,105,.18) */
}
.tile .shine {
  pointer-events: none;
  position: absolute; inset: 0; 
  background: radial-gradient(650px 200px at var(--mx,60%) -20%, rgba(255,255,255,.55), transparent 55%);
  mix-blend-mode: soft-light;
  transition: opacity .35s ease;
  opacity: .6;
}
.logo-wrap {
  width: clamp(110px, 14vw, 150px);
  aspect-ratio: 1/1;
  border-radius: 22px;
  border: 1px dashed var(--edge);
  display: grid; place-items: center;
  backdrop-filter: blur(4px);
  background: rgba(255,255,255,.65);
  box-shadow: 0 8px 20px rgba(16,24,40,.05);
  animation: float 4s ease-in-out infinite;
}
.brand {
  font-weight: 800;
  letter-spacing: .5px;
  font-size: clamp(22px, 2.5vw, 28px);
  color: var(--accent);
}
.lead {
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.4;
  color: #0b1324;
  opacity: .9;
}
.btn-wrap { gap: clamp(16px, 2.2vw, 26px); }
.btn-neo {
  --ring: 0 0 0 0 rgba(38,162,105,.0);
  border-radius: 999px; 
  padding: 14px 28px;
  border: 1px solid var(--edge);
  background: linear-gradient(180deg, #ffffff, #f6faf8);
  color: #0b1324;
  font-weight: 600;
  letter-spacing: .15px;
  box-shadow: var(--ring), 0 10px 18px rgba(16,24,40,.06), 0 2px 6px rgba(16,24,40,.05);
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  position: relative;
  overflow: hidden;
}
.btn-neo:hover {
  transform: translateY(-2px);
  --ring: 0 0 0 8px rgba(38,162,105,.08);
  box-shadow: var(--ring), 0 16px 26px rgba(16,24,40,.10);
}
.btn-neo:active { transform: translateY(0); }
.btn-neo::after {
  content: "";
  position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(120px 120px at var(--mx,50%) var(--my,50%), rgba(38,162,105,.18), transparent 46%);
  opacity: 0; transition: opacity .35s ease;
}
.btn-neo:hover::after { opacity: .6; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px);} to { opacity: 1; transform: none; } }
@keyframes float { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-6px);} }