/* ============================================================
   CFO Interactive — Base reset + typography + utilities
   ============================================================ */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse at top, rgba(255, 245, 215, 0.4), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(200, 170, 100, 0.06), transparent 70%);
  transition: background-color var(--transition), color var(--transition);
}

[data-theme='dark'] body {
  background-image:
    radial-gradient(ellipse at top, rgba(80, 60, 30, 0.15), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(180, 140, 60, 0.04), transparent 70%);
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
a:hover { color: var(--color-primary-hover); border-bottom-color: var(--color-primary-hover); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--color-primary-soft);
  color: var(--color-text);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
  color: var(--color-text);
}

p { text-wrap: pretty; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Buttons (shared) ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition);
  letter-spacing: 0.01em;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-text);
  color: var(--color-text-inverse);
}
.btn-primary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-text);
  background: var(--color-surface-2);
}
.btn.is-success {
  background: var(--color-green);
  color: var(--color-text-inverse);
}

/* ─── Kickers / labels (shared) ─── */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.label-mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

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