@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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/* Custom properties                                                    */
/* ------------------------------------------------------------------ */
:root {
  --c-bg:        #07101f;
  --c-bg-alt:    #0b1829;
  --c-surface:   #0f1e34;
  --c-surface-2: #132440;
  --c-border:    #1a2e4a;
  --c-border-2:  #253e62;

  --c-blue:      #4a8eff;
  --c-cyan:      #00c6df;
  --c-text:      #dde4f0;
  --c-text-2:    #7e95b8;
  --c-text-3:    #4e6383;

  --gradient:    linear-gradient(135deg, #4a8eff 0%, #00c6df 100%);

  --max-w:   1120px;
  --nav-h:   68px;

  --s-xs:  0.5rem;
  --s-s:   1rem;
  --s-m:   1.5rem;
  --s-l:   2.5rem;
  --s-xl:  4rem;
  --s-2xl: 6rem;

  --r-s: 6px;
  --r-m: 12px;
  --r-l: 20px;

  --t: 0.2s ease;
}

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/* Reset                                                                */
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*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-blue); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--c-cyan); }

img, svg { display: block; max-width: 100%; }
ul, ol   { list-style: none; }

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/* Typography                                                           */
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h1, h2, h3, h4 { line-height: 1.22; font-weight: 700; color: var(--c-text); }
h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

p { color: var(--c-text-2); }

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/* Layout utilities                                                     */
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.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section { padding: var(--s-2xl) 0; }

.section-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-blue);
  margin-bottom: 0.6rem;
}

.section-sub {
  color: var(--c-text-2);
  font-size: 1.05rem;
  max-width: 580px;
  margin-top: 0.75rem;
  margin-bottom: 0;
}

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

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/* Buttons                                                              */
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.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--r-s);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--t);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
}
.btn-primary:hover {
  opacity: 0.85;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(74, 142, 255, 0.28);
}

.btn-outline {
  background: transparent;
  color: var(--c-text);
  border: 1.5px solid var(--c-border-2);
}
.btn-outline:hover {
  border-color: var(--c-blue);
  color: var(--c-blue);
  transform: translateY(-2px);
}

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/* Tag chips                                                            */
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.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  background: rgba(74, 142, 255, 0.08);
  color: var(--c-blue);
  border: 1px solid rgba(74, 142, 255, 0.22);
  transition: all var(--t);
}
.tag:hover {
  background: rgba(74, 142, 255, 0.16);
  border-color: var(--c-blue);
}