/*
 * Noteworthy News V2 — Base Styles
 */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-lg));
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg) linear-gradient(
    180deg,
    var(--color-bg) 0%,
    hsl(220 30% 5%) 50%,
    var(--color-bg) 100%
  );
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ── CRT Scanlines ──────────────────────────────── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.035) 2px,
    rgba(0, 0, 0, 0.035) 4px
  );
}

/* ── Noise grain texture ─────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* ── Slow scanline sweep ─────────────────────────── */
@keyframes scanSweep {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.scanline-sweep {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  pointer-events: none;
  z-index: 9997;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(59, 139, 242, 0.015) 40%,
    rgba(59, 139, 242, 0.03) 50%,
    rgba(59, 139, 242, 0.015) 60%,
    transparent 100%
  );
  animation: scanSweep 8s linear infinite;
}

/* ── Typography ──────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--color-text);
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); letter-spacing: var(--tracking-tight); }
h2 { font-size: var(--text-3xl); letter-spacing: var(--tracking-tight); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); font-weight: var(--weight-semibold); }

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

.section p,
.hero p,
.site-footer p {
  max-width: 60ch;
}

strong, b { font-weight: var(--weight-semibold); }

small { font-size: var(--text-sm); }

/* ── Links ───────────────────────────────────────── */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

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

/* ── Lists ───────────────────────────────────────── */
ul, ol {
  list-style: none;
}

/* ── Forms ───────────────────────────────────────── */
button, input, select, textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ── Focus ───────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* ── Selection ───────────────────────────────────── */
::selection {
  background: var(--color-accent-ring);
  color: var(--color-white-pure);
}

/* ── 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: 0;
}

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