:root {
  --bg-color: #f4f7f6;
  --text-color: #1e293b;
  --primary-color: #007bff;
  --primary-glow: rgba(0, 123, 255, 0.08);
  --accent-color: #0056b3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --primary-color: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.12);
    --accent-color: #0ea5e9;
  }
}

body {
  margin: 0;
  background-color: var(--bg-color);
  transition: background-color 0.3s ease;
}

.initial-loader-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-color);
  z-index: 999999;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.loader-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
}

.loader-glow-orb {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(0,0,0,0) 70%);
  pointer-events: none;
  filter: blur(15px);
  animation: pulseGlow 4s infinite ease-in-out;
}

.loader-ring-wrapper {
  position: relative;
  width: 110px;
  height: 110px;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader-ring {
  position: absolute;
  border-radius: 50%;
  border: 3px solid transparent;
}

.loader-ring.outer {
  width: 100px;
  height: 100px;
  border-top-color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  animation: spinClockwise 2.2s cubic-bezier(0.5, 0.1, 0.4, 0.9) infinite;
}

.loader-ring.inner {
  width: 76px;
  height: 76px;
  border-left-color: var(--accent-color);
  border-right-color: var(--accent-color);
  animation: spinCounterClockwise 1.6s cubic-bezier(0.5, 0.1, 0.4, 0.9) infinite;
  opacity: 0.75;
}

.loader-core {
  position: relative;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  animation: pulseCore 2s ease-in-out infinite;
}

.loader-logo {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
}

.loader-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  color: var(--text-color);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-color) 40%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.loader-subtitle {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-color);
  opacity: 0.6;
  margin: 0 0 2rem 0;
  letter-spacing: 0.01em;
}

.loader-progress-bar {
  width: 140px;
  height: 4px;
  background-color: var(--primary-glow);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.loader-progress-value {
  width: 60px;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
  border-radius: 8px;
  position: absolute;
  left: -60px;
  animation: progressMove 1.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes spinClockwise {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes spinCounterClockwise {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(-360deg); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(0.95); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
}

@keyframes pulseCore {
  0%, 100% { transform: scale(1); box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
  50% { transform: scale(1.06); box-shadow: 0 6px 20px var(--primary-glow); }
}

@keyframes progressMove {
  0% { left: -60px; }
  50% { left: 100%; }
  100% { left: 100%; }
}