:root {
  --clr-primary:   #22F2F7;
  --clr-secondary: #43E8FF;
  --clr-accent:    #00D5FF;
  --clr-bg:           #061521;
  --clr-bg-surface:   #0A1C2C;
  --clr-bg-surface-l: #103147;
  --clr-glass:        rgba(255, 255, 255, 0.04);
  --clr-glass-border: rgba(255, 255, 255, 0.08);
  --clr-glass-hover:  rgba(34, 242, 247, 0.12);
  --clr-text:     #ffffff;
  --clr-text-dim: rgba(255, 255, 255, 0.45);
  --section-py: 120px;
  --container-w: min(1400px, calc(100% - 64px));
  --radius-card: 28px;
  --radius-pill:  999px;
  --radius-sm:    16px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

::selection {
  background: rgba(34, 242, 247, 0.3);
  color: #fff;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

img {
  display: block;
  max-width: 100%;
}

::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb {
  background: rgba(34, 242, 247, 0.3);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(34, 242, 247, 0.5);
}

.container {
  width: var(--container-w);
  margin-inline: auto;
}

.section-block {
  padding-block: var(--section-py);
}

.text-narrow {
  max-width: 650px;
}

.text-narrow-center {
  max-width: 650px;
  margin-inline: auto;
}

.glass-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  border: 1px solid var(--clr-glass-border);
  background: var(--clr-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  transition: all 0.45s var(--ease-out);
}

.glass-card:hover {
  border-color: rgba(34, 242, 247, 0.15);
  background: rgba(255, 255, 255, 0.06);
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.35),
    0 0 40px rgba(34, 242, 247, 0.08);
  transform: translateY(-4px);
}

.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 32px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: all 0.4s var(--ease-out);
}

.glass-btn:active {
  transform: scale(0.96);
}

.glass-btn-primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: var(--clr-bg);
  box-shadow: 0 0 30px rgba(34, 242, 247, 0.3);
}

.glass-btn-primary:hover {
  box-shadow: 0 0 50px rgba(34, 242, 247, 0.5);
  transform: translateY(-2px);
}

.glass-btn-secondary {
  background: var(--clr-glass);
  border: 1px solid var(--clr-glass-border);
  color: var(--clr-text);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.glass-btn-secondary:hover {
  border-color: rgba(34, 242, 247, 0.25);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 30px rgba(34, 242, 247, 0.12);
  transform: translateY(-2px);
}

.gradient-text {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.loader-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: var(--clr-bg);
  transition: opacity 0.5s, visibility 0.5s;
}

.loader-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: contain;
}

.loader-dots {
  display: flex;
  gap: 8px;
}

.loader-dots span {
  width: 12px;
  height: 12px;
  background: var(--clr-primary);
  border-radius: 50%;
  animation: dotBounce 1.4s ease-in-out infinite;
}

.loader-dots span:nth-child(1) {
  animation-delay: -0.32s;
}

.loader-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes dotBounce {
  0%, 80%, 100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}