:root {
  color-scheme: dark;
  --bg: #05070c;
  --panel: rgba(10, 18, 31, 0.78);
  --panel-strong: rgba(16, 31, 50, 0.9);
  --text: #eef7ff;
  --muted: #8ea2b8;
  --line: rgba(80, 220, 255, 0.2);
  --cyan: #50dcff;
  --green: #62ffb6;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: Inter, "Noto Sans Thai", ui-sans-serif, system-ui, sans-serif;
  background:
    radial-gradient(circle at 50% 18%, rgba(80, 220, 255, 0.18), transparent 24rem),
    radial-gradient(circle at 74% 78%, rgba(98, 255, 182, 0.12), transparent 25rem),
    linear-gradient(135deg, #05070c 0%, #0b1020 58%, #05070c 100%);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image: url("../images/app-grid.svg");
  background-size: cover;
  opacity: 0.48;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(180deg, rgba(5, 7, 12, 0.1), rgba(5, 7, 12, 0.78));
}

.loading-shell {
  display: grid;
  width: min(920px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 28px 0;
  grid-template-rows: auto 1fr auto;
}

.brand,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  justify-content: flex-start;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(80, 220, 255, 0.55);
  border-radius: 8px;
  color: #061015;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 30px rgba(80, 220, 255, 0.28);
}

.loader-card {
  align-self: center;
  justify-self: center;
  width: min(680px, 100%);
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
  text-align: center;
}

.orb {
  position: relative;
  display: grid;
  width: 108px;
  height: 108px;
  margin: 0 auto 26px;
  place-items: center;
  border-radius: 999px;
  background:
    conic-gradient(from 0deg, transparent 0 28%, var(--cyan), var(--green), transparent 72% 100%),
    rgba(255, 255, 255, 0.03);
  animation: spin 1.3s linear infinite;
}

.orb::before {
  position: absolute;
  inset: 9px;
  border-radius: inherit;
  background: #07101b;
  content: "";
}

.orb span {
  position: relative;
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 34px rgba(80, 220, 255, 0.42);
}

.orb span::after {
  color: #061015;
  content: "SB";
  font-weight: 900;
}

.eyebrow {
  width: fit-content;
  margin: 0 auto 18px;
  padding: 8px 12px;
  border: 1px solid rgba(98, 255, 182, 0.25);
  border-radius: 999px;
  color: var(--green);
  background: rgba(98, 255, 182, 0.07);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 8vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 560px;
  margin: 20px auto 0;
  color: #b7c6d8;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.7;
}

.progress {
  height: 10px;
  margin: 32px 0 20px;
  border: 1px solid rgba(80, 220, 255, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  overflow: hidden;
}

.progress span {
  display: block;
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  box-shadow: 0 0 24px rgba(80, 220, 255, 0.48);
  animation: loading 2.6s ease-in-out infinite;
}

.boot-log {
  display: inline-grid;
  min-width: min(100%, 420px);
  padding: 18px;
  border: 1px solid rgba(80, 220, 255, 0.18);
  border-radius: 8px;
  color: #b8eaff;
  background: rgba(2, 8, 14, 0.72);
  font: 700 13px/1.8 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  text-align: left;
}

.boot-log p {
  margin: 0;
}

.boot-log span,
.ready {
  color: var(--green);
}

footer {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes loading {
  0% {
    transform: translateX(-105%);
  }

  50% {
    transform: translateX(82%);
  }

  100% {
    transform: translateX(215%);
  }
}

@media (max-width: 560px) {
  .loading-shell {
    width: min(100% - 24px, 920px);
    padding: 18px 0;
  }

  .brand,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .loader-card {
    padding: 22px;
  }

  h1 {
    font-size: clamp(38px, 13vw, 54px);
  }
}