/* ============================================================================
   base.css  —  reset, font-face declarations, element defaults
   Adapted from V1. Font paths updated for V3 location.
============================================================================ */

/* ---- @font-face: Messina Sans ------------------------------------------ */
@font-face { font-family:"Messina Sans"; font-style:normal;  font-weight:300; font-display:swap; src:url("../fonts/MessinaSans-Light.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:italic;  font-weight:300; font-display:swap; src:url("../fonts/MessinaSans-LightItalic.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:normal;  font-weight:400; font-display:swap; src:url("../fonts/MessinaSans-Book.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:italic;  font-weight:400; font-display:swap; src:url("../fonts/MessinaSans-BookItalic.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:normal;  font-weight:600; font-display:swap; src:url("../fonts/MessinaSans-SemiBold.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:italic;  font-weight:600; font-display:swap; src:url("../fonts/MessinaSans-SemiBoldItalic.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:normal;  font-weight:700; font-display:swap; src:url("../fonts/MessinaSans-Bold.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:italic;  font-weight:700; font-display:swap; src:url("../fonts/MessinaSans-BoldItalic.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:normal;  font-weight:900; font-display:swap; src:url("../fonts/MessinaSans-Black.ttf") format("truetype"); }
@font-face { font-family:"Messina Sans"; font-style:italic;  font-weight:900; font-display:swap; src:url("../fonts/MessinaSans-BlackItalic.ttf") format("truetype"); }

/* ---- Box-sizing reset -------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

/* ---- Strip default margins --------------------------------------------- */
html, body, h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

/* ---- Root ---------------------------------------------------------------- */
html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--persona-tab-height) + var(--space-4));
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: var(--line-height-normal);
  color: var(--color-fg);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ---- Media defaults ------------------------------------------------------ */
img, svg, video, canvas, audio, iframe, embed, object { display: block; max-width: 100%; }
img, video { height: auto; }
svg { fill: currentColor; }

/* ---- Form elements inherit type ----------------------------------------- */
input, button, textarea, select { font: inherit; color: inherit; }

/* ---- Headings ----------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semi);
  line-height: var(--line-height-tight);
  letter-spacing: -0.015em;
  color: var(--color-fg);
  text-wrap: balance;
}
h1 { font-size: var(--step-6); font-weight: var(--font-weight-bold);   letter-spacing: -0.025em; }
h2 { font-size: var(--step-5); font-weight: var(--font-weight-semi);   letter-spacing: -0.02em; }
h3 { font-size: var(--step-3); }
h4 { font-size: var(--step-2); }
h5 { font-size: var(--step-1); }
h6 { font-size: var(--step-0); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-fg-quiet); }

/* ---- Paragraph ---------------------------------------------------------- */
p { max-width: var(--container-measure); text-wrap: pretty; }

strong, b { font-weight: var(--font-weight-semi); }
em, i      { font-style: italic; }
small      { font-size: var(--step--1); }

/* ---- Links -------------------------------------------------------------- */
a {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
  text-decoration-color: color-mix(in srgb, currentColor 30%, transparent);
  transition: color var(--duration-fast) var(--ease-standard),
              text-decoration-color var(--duration-fast) var(--ease-standard);
}
a:hover {
  color: var(--color-accent);
  text-decoration-color: currentColor;
}

/* On dark surfaces, links inherit the light colour correctly */
.section--dark a:not(.btn) {
  color: rgba(255,255,255,0.85);
}
.section--dark a:not(.btn):hover {
  color: #fff;
}

/* ---- Focus visible ------------------------------------------------------ */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-1);
}
:focus:not(:focus-visible) { outline: none; }

/* ---- Lists -------------------------------------------------------------- */
ul, ol { padding-left: 1.25em; }
ul li, ol li { margin-block: var(--space-1); }
.list-reset { list-style: none; padding-left: 0; margin: 0; }
.list-reset li { margin: 0; }

/* ---- Blockquote --------------------------------------------------------- */
blockquote {
  border-left: 3px solid var(--color-persona-active, var(--color-border));
  padding: var(--space-2) 0 var(--space-2) var(--space-5);
  font-size: var(--step-2);
  font-style: italic;
  color: var(--color-fg);
}
blockquote cite {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--step-0);
  font-style: normal;
  color: var(--color-fg-quiet);
}

/* ---- Horizontal rule ---------------------------------------------------- */
hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-7);
}

/* ---- Tables ------------------------------------------------------------- */
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); vertical-align: top; }
th { font-weight: var(--font-weight-semi); color: var(--color-fg-quiet); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---- Selection ---------------------------------------------------------- */
::selection { background: var(--color-accent); color: #fff; }

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

/* ---- Utility classes ---------------------------------------------------- */
.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;
}

.skip-link {
  position: absolute; top: -999px; left: var(--space-4);
  background: var(--color-ink); color: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-2); text-decoration: none;
  z-index: var(--z-modal);
}
.skip-link:focus { top: var(--space-4); color: var(--color-bg); }

/* ---- Prose (long-form, narrative pages) --------------------------------- */
.prose { max-width: var(--container-prose); }
.prose > * + * { margin-top: var(--space-5); }
.prose h2 { margin-top: var(--space-8); font-size: var(--step-4); }
.prose h3 { margin-top: var(--space-7); font-size: var(--step-2); }
.prose h4 { margin-top: var(--space-6); font-size: var(--step-1); }
.prose ul, .prose ol { padding-left: 1.5em; }
.prose img { border-radius: var(--radius-2); margin-block: var(--space-6); }