/*
 * style.css — Jules global stylesheet
 * Self-contained: tokens, reset, nav, footer, shared utilities.
 * Page-specific rules live in css/pages/*.css
 *
 * Uses CSS @layer for predictable cascade:
 * base → layout → components → utilities
 */

@layer base, layout, components, utilities;

/* ═══════════════════════════════════════════════════════════════
   BASE — Reset + Tokens
═══════════════════════════════════════════════════════════════ */
@layer base {

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, video, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
[hidden] { display: none !important; }

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  /* Background scale */
  --bg-deepest:    #0D0D0F;
  --bg-main:       #141417;
  --bg-elevated:   #1A1A1E;
  --bg-highlight:  #222228;

  /* Border scale */
  --border:        #2A2A30;
  --border-2:      #383840;

  /* Red accent (WCAG AA verified against --bg-main) */
  --red-primary:   #E03333;   /* 4.57:1 — AA normal text ✓ */
  --red-bright:    #F04444;   /* 5.46:1 — interactive states ✓ */
  --red-dimmed:    #991F1F;   /* decorative/borders only */
  --red-glow:      rgba(224, 51, 51, 0.20);
  --red-faint:     rgba(224, 51, 51, 0.07);

  /* Gold accent */
  --gold-primary:  #FFB300;   /* 8.3:1 — AAA ✓ */
  --gold-glow:     rgba(255, 179, 0, 0.18);

  /* Text scale */
  --text-primary:   #E8E8EC;  /* 13.4:1 AAA */
  --text-secondary: #A0A0A8;  /* 7.2:1  AA  */
  --text-faint:     #6B6B73;  /* 4.6:1  AA  */
  --text-emphasis:  #F5F5F7;  /* 15.1:1 AAA */

  /* Semantic */
  --success: #2E7D32;
  --warning: #F57F17;
  --error:   #C62828;

  /* Font families */
  --font-body:    'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-ui:      'DM Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Syne', Impact, 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  /* Font weights */
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;
  --weight-black:    800;

  /* Fluid type scale (320px → 1440px) — Perfect Fourth 1.333 */
  --text-xs:    clamp(0.625rem,  0.5833rem + 0.2083vi, 0.8125rem);  /* 10→13px */
  --text-sm:    clamp(0.75rem,   0.7083rem + 0.2083vi, 0.9375rem);  /* 12→15px */
  --text-base:  clamp(0.875rem,  0.8125rem + 0.3125vi, 1.125rem);   /* 14→18px */
  --text-md:    clamp(1rem,      0.8958rem + 0.5208vi, 1.5rem);     /* 16→24px */
  --text-lg:    clamp(1.25rem,   1.1042rem + 0.7292vi, 1.9375rem);  /* 20→31px */
  --text-xl:    clamp(1.5rem,    1.2917rem + 1.0417vi, 2.5rem);     /* 24→40px */
  --text-2xl:   clamp(1.875rem,  1.5625rem + 1.5625vi, 3.375rem);   /* 30→54px */
  --text-3xl:   clamp(2.25rem,   1.8125rem + 2.1875vi, 4.25rem);    /* 36→68px */
  --text-4xl:   clamp(2.875rem,  2.2708rem + 3.0208vi, 5.625rem);   /* 46→90px */

  /* Line heights */
  --leading-body:     1.7;
  --leading-ui:       1.2;
  --leading-display:  0.95;
  --leading-headline: 1.1;
  --leading-relaxed:  1.85;

  /* Letter spacing */
  --tracking-body:    -0.01em;
  --tracking-ui:       0.02em;
  --tracking-display: -0.02em;
  --tracking-wide:     0.05em;
  --tracking-wider:    0.1em;

  /* Spacing (8px base) */
  --space-1:  0.5rem;
  --space-2:  1rem;
  --space-3:  1.5rem;
  --space-4:  2rem;
  --space-5:  2.5rem;
  --space-6:  3rem;
  --space-8:  4rem;
  --space-10: 5rem;
  --space-12: 6rem;

  /* Layout */
  --max-width:    1200px;
  --prose-width:  740px;
  --nav-height:   64px;
  --gutter:       clamp(1rem, 4vw, 2.5rem);

  /* Border radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 6px rgba(0,0,0,0.3), 0 2px 4px rgba(0,0,0,0.4);
  --shadow-lg:  0 10px 15px rgba(0,0,0,0.3), 0 4px 6px rgba(0,0,0,0.4);
  --glow-red:   0 0 20px var(--red-glow), 0 0 40px var(--red-faint);
  --glow-gold:  0 0 20px var(--gold-glow);

  /* Animation */
  --dur-fast:      120ms;
  --dur-base:      220ms;
  --dur-slow:      400ms;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.76, 0, 0.24, 1);

  /* Z-index layers */
  --z-content:  1;
  --z-nav:      100;
  --z-dropdown: 200;
  --z-overlay:  300;
  --z-noise:    9999;
}

/* Noise grain overlay */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: var(--z-noise);
  opacity: 0.032;
  mix-blend-mode: overlay;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

} /* end @layer base */


/* ═══════════════════════════════════════════════════════════════
   LAYOUT — Grid wrapper, nav, footer
═══════════════════════════════════════════════════════════════ */
@layer layout {

/* ── Wrap utility ─────────────────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── Navigation ───────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(20, 20, 23, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  transition: border-color var(--dur-base), background var(--dur-base);
}

.site-nav--scrolled {
  border-bottom-color: var(--border-2);
  background: rgba(13, 13, 15, 0.96);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--text-emphasis);
  letter-spacing: var(--tracking-display);
  line-height: 1;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
  letter-spacing: var(--tracking-ui);
  position: relative;
  background: none;
  border: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.75rem;
  right: 0.75rem;
  height: 1.5px;
  background: var(--red-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms var(--ease-out-expo);
}

.nav-link:hover {
  color: var(--text-emphasis);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link--active {
  color: var(--red-primary);
}

.nav-link--active::after {
  transform: scaleX(1);
}

/* Dropdown */
.nav-has-dropdown {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  display: none;
}

.nav-dropdown li a {
  display: block;
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--dur-fast), background var(--dur-fast);
}

.nav-dropdown li a:hover {
  color: var(--text-emphasis);
  background: var(--bg-highlight);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-hamburger[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-3) var(--gutter) var(--space-4);
}

.mobile-menu:not([hidden]) { display: block; }

.mobile-menu ul li a {
  display: block;
  font-family: var(--font-ui);
  font-size: var(--text-base);
  color: var(--text-secondary);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--dur-fast);
}

.mobile-menu ul li:last-child a {
  border-bottom: none;
}

.mobile-menu ul li a:hover {
  color: var(--red-primary);
}

@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-hamburger { display: flex; }
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-deepest);
  color: rgba(245, 245, 247, 0.65);
  padding: clamp(3rem, 6vw, 5rem) 0 0;
  margin-top: clamp(4rem, 8vw, 7rem);
  position: relative;
}

/* Gradient accent bar across top */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--red-primary) 30%, var(--gold-primary) 70%, transparent 100%);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--text-emphasis);
  text-decoration: none;
  letter-spacing: var(--tracking-display);
  display: block;
  margin-bottom: 0.6rem;
}

.footer-tagline {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-faint);
}

.footer-heading {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: var(--space-2);
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: rgba(245, 245, 247, 0.55);
  transition: color var(--dur-fast);
}

.footer-links a:hover {
  color: var(--text-emphasis);
}

.footer-bottom {
  border-top: 1px solid rgba(245, 245, 247, 0.06);
  padding: 1.25rem 0;
}

.footer-copyright {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: rgba(245, 245, 247, 0.3);
}

} /* end @layer layout */


/* ═══════════════════════════════════════════════════════════════
   COMPONENTS — Shared across multiple pages
═══════════════════════════════════════════════════════════════ */
@layer components {

/* ── Section title ────────────────────────────────────────── */
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-emphasis);
  letter-spacing: var(--tracking-display);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

/* ── Article card ─────────────────────────────────────────── */
.article-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out-expo),
              box-shadow var(--dur-base) var(--ease-out-expo),
              border-color var(--dur-base);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-2);
}

} /* end @layer components */


/* ═══════════════════════════════════════════════════════════════
   UTILITIES — Always win specificity (unlayered)
═══════════════════════════════════════════════════════════════ */

/* Screen-reader only */
.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;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* View Transitions */
@view-transition { navigation: auto; }

@keyframes editorial-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}
@keyframes editorial-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

::view-transition-old(root) {
  animation: editorial-fade-out 280ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
::view-transition-new(root) {
  animation: editorial-fade-in 280ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Focus visible global */
:focus-visible {
  outline: 2px solid var(--red-primary);
  outline-offset: 3px;
}