@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@400;500;600&display=swap');

:root {
  /* Life Armor Blue Palette */
  --color-bg: #ffffff;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #1a73e8;
  --color-primary-dark: #1e3a5f;
  --color-border: rgba(15, 23, 42, 0.08);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Instrument Serif', Georgia, serif;

  /* Layout */
  --container-max-width: 1320px;
  --squircle-radius: 24px;

  /* Legacy variables */
  --oes-color-bg: var(--color-bg);
  --oes-color-text: var(--color-text);
  --oes-color-title: var(--color-text);
  --oes-color-muted: var(--color-text-muted);
  --oes-color-accent: var(--color-primary);
  --oes-gradient-top: rgba(26, 115, 232, 0.08);
  --oes-gradient-bottom: rgba(26, 115, 232, 0.12);
  --oes-padding: clamp(1.5rem, 2vw, 2.5rem);
  --oes-card-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  --oes-card-outline: 1px solid rgba(15, 23, 42, 0.08);
  --oes-card-bg: rgba(255, 255, 255, 0.2);
  --oes-radius: calc(var(--squircle-radius) * 0.6);
}

.squircle {
  border-radius: var(--squircle-radius);
  position: relative;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: 160px;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

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

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: var(--color-primary-dark);
  color: #fff;
  border-radius: 60px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  border: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 12px 30px -8px rgba(15, 23, 42, 0.2);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -8px rgba(15, 23, 42, 0.3);
  color: #fff;
}

section:not(.oes-section) {
  padding: clamp(5rem, 12vw, 10rem) 0;
}

.grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

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

::selection {
  background: rgba(26, 115, 232, 0.15);
  color: var(--color-primary-dark);
}