@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  overflow-x: clip;
}

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

a {
  color: var(--color-accent-blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-purple);
}

:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

:root {
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-card: #1a2235;
  --color-accent-blue: #4f8ef7;
  --color-accent-purple: #8b5cf6;
  --color-accent-orange: #f97316;
  --color-accent-gradient: linear-gradient(135deg, #4f8ef7 0%, #8b5cf6 50%, #f97316 100%);
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-glow-blue: rgba(79, 142, 247, 0.25);
  --color-glow-purple: rgba(139, 92, 246, 0.25);
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(79, 142, 247, 0.2);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
  color: var(--color-text-secondary);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

.gradient-text {
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-text-primary);
}

.section-header p {
  margin-bottom: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), filter var(--transition);
  text-decoration: none;
  color: inherit;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

/* Global `a:hover` sets purple — restore intended button colors on links */
a.btn-primary:hover,
a.btn-primary:focus-visible {
  color: #fff;
}

a.btn-outline:hover,
a.btn-outline:focus-visible {
  color: var(--color-accent-blue);
}

.btn-primary:hover {
  box-shadow:
    0 12px 40px rgba(79, 142, 247, 0.38),
    0 4px 16px rgba(139, 92, 246, 0.18);
  filter: brightness(1.08);
}

.btn-primary:active {
  filter: brightness(0.98);
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  border-color: var(--color-accent-blue);
  color: var(--color-accent-blue);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 1.75rem;
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}