/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #0a0c10;
  --color-bg-card:   #111318;
  --color-border:    rgba(255, 255, 255, 0.08);
  --color-text:      #e8eaf0;
  --color-muted:     #8b92a8;
  --color-accent-1:  #6c8eff;
  --color-accent-2:  #a78bfa;
  --color-cta-bg:    #6c8eff;
  --color-cta-hover: #5a7bee;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===========================
   Utilities
   =========================== */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.12s ease;
  border: 1.5px solid transparent;
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--color-cta-bg);
  color: #fff;
  border-color: var(--color-cta-bg);
  padding: 0.65rem 1.4rem;
}

.btn--primary:hover {
  background: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
  padding: 0.55rem 1.15rem;
}

.btn--outline:hover {
  border-color: var(--color-accent-1);
  color: var(--color-accent-1);
}

.btn--large {
  font-size: 1.05rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-md);
}

/* ===========================
   Navigation
   =========================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 12, 16, 0.8);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.nav__logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(6rem, 14vw, 10rem);
  text-align: center;
}

/* Subtle dot grid background */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(108, 142, 255, 0.12) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}

/* Radial vignette over the grid */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(108,142,255,0.10) 0%, transparent 70%);
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  margin-bottom: 1.5rem;
  padding: 0.35rem 1rem;
  border: 1px solid rgba(108, 142, 255, 0.35);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(108, 142, 255, 0.08);
}

.hero__heading {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.hero__subheading {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-muted);
  max-width: 620px;
  margin-inline: auto;
  margin-bottom: 2.75rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===========================
   Features
   =========================== */
.features {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(108, 142, 255, 0.35);
  transform: translateY(-3px);
}

.feature-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.feature-card__body {
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ===========================
   CTA Banner
   =========================== */
.cta-banner {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.cta-banner__inner {
  background: linear-gradient(135deg, rgba(108,142,255,0.12) 0%, rgba(167,139,250,0.12) 100%);
  border: 1px solid rgba(108, 142, 255, 0.25);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
}

.cta-banner__heading {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.cta-banner__sub {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

/* ===========================
   Footer
   =========================== */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* ===========================
   Responsive tweaks
   =========================== */
@media (max-width: 600px) {
  .hero__heading {
    letter-spacing: -0.03em;
  }

  .cta-banner__inner {
    padding: 2rem 1.5rem;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}