* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
  color: #fff;
  font-family: "Segoe UI", "Yu Gothic", "Yu Gothic UI", "Meiryo", sans-serif;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.launcher-stage {
  position: relative;
  width: 1920px;
  height: 1080px;
  flex: 0 0 auto;
  transform-origin: center center;
  overflow: hidden;
  background: #000;
  box-shadow: 0 0 0 1px rgba(110, 170, 230, 0.26), 0 0 52px rgba(0, 0, 0, 0.9);
}

.launcher-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  background: #000;
  user-select: none;
  pointer-events: none;
  z-index: 0;
}

.launcher-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 5, 14, 0.48) 0%, rgba(0, 5, 14, 0.30) 27%, rgba(0, 5, 14, 0.06) 62%, rgba(0, 0, 0, 0.12) 100%),
    radial-gradient(circle at 18% 19%, rgba(40, 110, 190, 0.12), transparent 32%),
    radial-gradient(circle at 85% 86%, rgba(255, 70, 20, 0.08), transparent 30%);
}

.launcher-panel {
  position: absolute;
  left: 58px;
  top: 58px;
  width: 610px;
  z-index: 2;
}

.launcher-brand {
  margin-bottom: 30px;
}

.brand-logo {
  margin: 0;
  font-size: 96px;
  line-height: 0.92;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -5px;
  color: #f6fbff;
  text-shadow:
    0 0 10px rgba(255, 255, 255, 0.52),
    0 0 26px rgba(120, 190, 255, 0.34),
    0 4px 16px rgba(0, 0, 0, 0.78);
}

.brand-logo span {
  color: #ff1823;
  text-shadow:
    0 0 12px rgba(255, 20, 30, 0.55),
    0 0 22px rgba(255, 20, 30, 0.35);
}

.brand-title {
  margin: 21px 0 0 0;
  font-size: 46px;
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 1px;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.82);
}

.brand-subtitle {
  margin: 13px 0 0 0;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: 0.1px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.85);
}

.brand-line {
  width: 360px;
  height: 3px;
  margin-top: 20px;
  background: linear-gradient(90deg, #ff101c, rgba(255, 16, 28, 0.42), rgba(255, 16, 28, 0));
  box-shadow: 0 0 12px rgba(255, 16, 28, 0.35);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 17px;
  margin: 0 0 21px 0;
}

.feature-item {
  display: grid;
  grid-template-columns: 76px 1fr;
  align-items: center;
  min-height: 67px;
}

.feature-icon {
  width: 58px;
  height: 58px;
  border: 1.8px solid rgba(255, 255, 255, 0.82);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(3, 10, 22, 0.58);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 7px 20px rgba(0, 0, 0, 0.35);
}

.feature-icon svg {
  width: 38px;
  height: 38px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-icon svg circle,
.feature-icon svg rect {
  fill: none;
}

.feature-text h3 {
  margin: 0;
  font-size: 27px;
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: 0.2px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.86);
}

.feature-text p {
  margin: 7px 0 0 0;
  font-size: 16px;
  line-height: 1.25;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.86);
}

.launch-form {
  width: 565px;
  padding: 19px 26px 24px;
  border: 1.4px solid rgba(112, 178, 235, 0.68);
  border-radius: 9px;
  background: rgba(2, 10, 22, 0.76);
  box-shadow:
    0 0 30px rgba(0, 0, 0, 0.55),
    0 0 24px rgba(20, 130, 220, 0.10) inset;
  backdrop-filter: blur(2px);
}

.form-row {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 18px;
  padding-left: 18px;
}

.form-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: 31px;
  border-radius: 6px;
  background: #ff101c;
  box-shadow: 0 0 8px rgba(255, 16, 28, 0.45);
}

.form-row label {
  display: block;
  font-size: 25px;
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 0.4px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.82);
}

.form-row input {
  display: block;
  width: 100%;
  height: 54px;
  border: 2px solid rgba(255, 255, 255, 0.78);
  border-radius: 5px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.96);
  color: #102033;
  font-size: 21px;
  font-weight: 800;
  outline: none;
  box-shadow:
    0 4px 12px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.form-row input::placeholder {
  color: rgba(85, 101, 119, 0.62);
}

.form-row input:focus {
  border-color: rgba(85, 190, 255, 0.95);
  box-shadow:
    0 0 0 4px rgba(20, 150, 255, 0.20),
    0 6px 16px rgba(0, 0, 0, 0.32);
}

.start-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 70px;
  margin-top: 6px;
  border: 1px solid rgba(255, 70, 70, 0.92);
  border-radius: 5px;
  background: linear-gradient(180deg, #ff161b 0%, #da0007 48%, #b00005 100%);
  color: #fff;
  font-size: 39px;
  font-weight: 900;
  letter-spacing: 18px;
  cursor: pointer;
  box-shadow:
    0 0 22px rgba(255, 16, 28, 0.26),
    0 10px 22px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
  transition: transform 0.14s ease, filter 0.14s ease, box-shadow 0.14s ease;
}

.start-button:hover,
.start-button:focus-visible {
  filter: brightness(1.08);
  box-shadow:
    0 0 28px rgba(255, 16, 28, 0.42),
    0 12px 26px rgba(0, 0, 0, 0.46),
    inset 0 1px 0 rgba(255, 255, 255, 0.34);
}

.start-button:active {
  transform: translateY(2px);
}

.start-label {
  transform: translateX(11px);
}

.start-arrow {
  position: absolute;
  right: 38px;
  top: 50%;
  transform: translateY(-54%);
  font-size: 56px;
  line-height: 1;
  letter-spacing: 0;
}

.launcher-footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 23px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 17px;
  font-weight: 500;
  text-shadow: 0 3px 10px rgba(0, 0, 0, 0.88);
}

.footer-separator {
  color: rgba(255, 255, 255, 0.55);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}