:root {
  --bg-canvas: #0b1120;
  --bg-surface: #121b2b;
  --text-main: #f4f8ff;
  --text-muted: #a9b6c6;
  --text-subtle: #718096;
  --point: #5d95e2;
  --point-strong: #2b5fd6;
  --warning: #c18418;
  --warning-light: #ffd38a;

  --glass-tint: rgba(70, 110, 190, 0.12);
  --glass-tint-dark: rgba(20, 30, 50, 0.36);
  --glass-stroke: rgba(255, 255, 255, 0.18);
  --glass-stroke-alt: rgba(255, 255, 255, 0.08);
  --glass-blur: 20px;

  --shadow-main: 0 10px 34px -10px rgba(0, 0, 0, 0.65);
  --shadow-soft: 0 4px 16px -10px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-canvas);
  color: var(--text-main);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  word-break: keep-all;
}

/* Background effects mimicking control/frontend liquid glass */
.liquid-glass-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(
      circle at 16% 14%,
      rgba(43, 95, 214, 0.15),
      transparent 48%
    ),
    radial-gradient(
      circle at 84% 82%,
      rgba(106, 90, 217, 0.12),
      transparent 45%
    ),
    linear-gradient(140deg, #0b1422, #0f172a);
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
  mix-blend-mode: screen;
  animation: liquidShift 14s ease-in-out infinite alternate;
}

.orb-a {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(
    circle,
    rgba(93, 143, 224, 0.25),
    transparent 70%
  );
}

.orb-b {
  bottom: -10%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(106, 90, 217, 0.2), transparent 70%);
  animation-delay: -5s;
}

.orb-c {
  top: 40%;
  left: 60%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(43, 95, 214, 0.15), transparent 70%);
  animation-duration: 20s;
}

@keyframes liquidShift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  33% {
    transform: translate3d(-2%, 2%, 0) scale(1.04);
  }
  66% {
    transform: translate3d(2%, -1%, 0) scale(1.02);
  }
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
}

.page-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

/* Main Panel - Glassmorphism */
.glass-panel {
  position: relative;
  width: min(48rem, 100%);
  border-radius: 1.75rem;
  padding: clamp(2rem, 4vw, 3rem);

  background:
    linear-gradient(
      135deg,
      var(--glass-tint) 0%,
      rgba(255, 255, 255, 0.04) 60%,
      rgba(255, 255, 255, 0.02) 100%
    ),
    linear-gradient(140deg, rgba(26, 36, 54, 0.78), rgba(18, 28, 46, 0.74));
  border: 1px solid var(--glass-stroke);
  backdrop-filter: blur(var(--glass-blur)) saturate(130%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(130%);
  box-shadow: var(--shadow-main), var(--shadow-soft);

  animation: rise-in 600ms cubic-bezier(0.16, 1, 0.3, 1) both;
  overflow: hidden;
}

.glass-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 30% 35%,
    rgba(120, 160, 255, 0.08),
    transparent 60%
  );
  pointer-events: none;
}

.panel-content {
  position: relative;
  z-index: 1;
}

/* Typography & Components matching frontend */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: linear-gradient(
    100deg,
    rgba(43, 95, 214, 0.22),
    rgba(93, 143, 224, 0.16)
  );
  border: 1px solid rgba(93, 143, 224, 0.42);

  font-family: "Archivo", "Noto Sans KR", sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(214, 230, 255, 0.95);
  margin: 0;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warning-light);
  box-shadow: 0 0 8px var(--warning-light);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.hero-brand {
  margin: 1rem 0 0;
  font-family: "Archivo", "Noto Sans KR", sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: rgba(245, 250, 255, 0.99);
  background: linear-gradient(180deg, #f4f8ff 6%, #d7e7ff 58%, #94b9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 6px 20px rgba(0, 0, 0, 0.64);
}

.hero-subcopy {
  margin: 1.25rem 0 0;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  text-wrap: balance;
}

/* Feature Cards for details */
.meta-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.feature-card {
  position: relative;
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid var(--glass-stroke-alt);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 4px 16px -8px rgba(0, 0, 0, 0.4);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: rgba(141, 184, 255, 0.2);
}

.detail-card {
  margin-top: 1rem;
}

.meta-label {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--text-subtle);
  font-weight: 500;
}

.meta-value {
  margin: 0;
  font-family: "Archivo", "Noto Sans KR", sans-serif;
  color: var(--text-main);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.detail-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: #d7e7ff;
}

.window-text {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.countdown {
  margin: 0.75rem 0 0;
  font-family: "Archivo", "Noto Sans KR", sans-serif;
  color: var(--warning-light);
  font-weight: 600;
  font-size: 1.05rem;
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(193, 132, 24, 0.15);
  border-radius: 6px;
  border: 1px solid rgba(193, 132, 24, 0.3);
}

.impact-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 0.95rem;
}

.impact-list li::marker {
  color: rgba(118, 165, 247, 0.8);
}

/* CTA Area */
.audience-cta {
  position: relative;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(126, 160, 214, 0.15);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.audience-cta-button {
  width: 100%;
  max-width: 240px;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(125, 173, 248, 0.4);
  background: linear-gradient(
    145deg,
    rgba(55, 112, 236, 0.24),
    rgba(24, 40, 68, 0.44)
  );
  color: rgba(237, 245, 255, 0.98);
  font-family: "Archivo", "Noto Sans KR", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  transition: all 0.25s ease;
}

.audience-cta-button:hover {
  transform: translateY(-2px);
  border-color: rgba(149, 191, 255, 0.75);
  background: linear-gradient(
    145deg,
    rgba(52, 107, 228, 0.35),
    rgba(27, 42, 68, 0.5)
  );
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 8px 20px -12px rgba(64, 122, 245, 0.6);
}

.action-note {
  margin: 0;
  color: var(--text-subtle);
  font-size: 0.85rem;
  text-align: center;
}

.caption {
  position: relative;
  z-index: 1;
  margin: 2rem 0 0;
  color: rgba(113, 128, 150, 0.7);
  font-size: 0.8rem;
  text-align: center;
  line-height: 1.5;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .meta-grid {
    grid-template-columns: 1fr;
  }
}