/* =========================================================
   FlameSync Harmonic Systems — Base Styles
   Global defaults, typography, accessibility
   ========================================================= */

/* ---------- Global Reset Hooks ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* ---------- HTML & Body ---------- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;

  font-family: var(--font-primary);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);

  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Typography ---------- */

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 var(--spacing-md) 0;
  font-weight: 500;
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-hero);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-xxl);
  letter-spacing: -0.015em;
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

h5,
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-secondary);
  max-width: 70ch;
}

/* ---------- Links ---------- */
a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* ---------- Text Utilities ---------- */
.text-muted {
  color: var(--color-text-muted);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.text-center {
  text-align: center;
}

/* ---------- Lists ---------- */
ul,
ol {
  margin: 0 0 var(--spacing-md) var(--spacing-lg);
  padding: 0;
  color: var(--color-text-secondary);
}

li {
  margin-bottom: var(--spacing-xs);
}

/* ---------- Images & Media ---------- */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- Forms (Base Only) ---------- */
input,
textarea,
select,
button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input,
textarea,
select {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  color: var(--color-text-primary);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
}

/* ---------- Buttons (Unstyled Base) ---------- */
button {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

/* ---------- Horizontal Rule ---------- */
hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--spacing-lg) 0;
}

/* ---------- Code Blocks ---------- */
pre,
code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

pre {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

code {
  padding: 0.15em 0.35em;
  border-radius: var(--radius-sm);
}

/* ---------- Selection ---------- */
::selection {
  background-color: rgba(107, 228, 232, 0.25);
}

/* ---------- Accessibility ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent-cyan);
  outline-offset: 2px;
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* =========================================================
   End of base.css
   ========================================================= */