/* =========================================================
   Mike Shear — Editorial Portfolio
   Base tokens, reset, typography, layout
   ========================================================= */

/* Fonts: Fraunces (display serif) + Inter (body sans) via Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&display=swap');

/* ---------- Tokens ---------- */
:root,
[data-theme='light'] {
  /* Surfaces — warm off-white */
  --color-bg: #f6f3ec;
  --color-surface: #fbf9f3;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ece8de;
  --color-divider: #d8d3c4;
  --color-border: #c9c2af;
  --color-rule: #1f1d1a;

  /* Text — deep ink */
  --color-text: #1f1d1a;
  --color-text-muted: #6a6557;
  --color-text-faint: #a8a294;
  --color-text-inverse: #fbf9f3;

  /* Accent — editorial vermilion */
  --color-accent: #b1361b;
  --color-accent-hover: #8a2914;
  --color-accent-soft: #e7d4cc;

  /* Focus */
  --color-focus: #b1361b;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(31, 29, 26, 0.06);
  --shadow-md: 0 4px 16px rgba(31, 29, 26, 0.08);
}

[data-theme='dark'] {
  --color-bg: #14130f;
  --color-surface: #1b1a16;
  --color-surface-2: #221f1a;
  --color-surface-offset: #2a2620;
  --color-divider: #3a3530;
  --color-border: #4a4540;
  --color-rule: #e7e2d6;

  --color-text: #ece6d6;
  --color-text-muted: #9a9484;
  --color-text-faint: #5e5a52;
  --color-text-inverse: #1b1a16;

  --color-accent: #e0805f;
  --color-accent-hover: #f0a085;
  --color-accent-soft: #3a2a22;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
}

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1.5rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 1rem + 6vw, 6.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container: 1240px;
  --container-narrow: 760px;
  --container-wide: 1400px;

  /* Type */
  --font-display: 'Fraunces', 'Georgia', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 160ms;
  --dur-base: 280ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body, h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  font-feature-settings: 'kern', 'liga', 'ss01';
  -webkit-font-smoothing: antialiased;
  transition: background var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}

/* Typography */
.display { font-family: var(--font-display); font-weight: 500; line-height: 1.05; letter-spacing: -0.02em; }
.display--italic { font-style: italic; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.02em; line-height: 1.1; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.lede { font-size: var(--text-lg); line-height: 1.55; color: var(--color-text); max-width: 60ch; }
.muted { color: var(--color-text-muted); }
.dropcap::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 4.5em;
  line-height: 0.85;
  padding: 0.05em 0.08em 0 0;
  font-weight: 500;
  color: var(--color-accent);
}

a { color: var(--color-text); text-decoration: underline; text-decoration-color: var(--color-border); text-underline-offset: 4px; transition: color var(--dur-fast) var(--ease), text-decoration-color var(--dur-fast) var(--ease); }
a:hover { color: var(--color-accent); text-decoration-color: var(--color-accent); }
a.plain { text-decoration: none; }
a.plain:hover { color: var(--color-accent); }

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

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-inline: clamp(var(--space-5), 4vw, var(--space-10)); }
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

.section { padding-block: clamp(var(--space-12), 8vw, var(--space-24)); }
.section--tight { padding-block: clamp(var(--space-8), 5vw, var(--space-16)); }

.rule { border: 0; border-top: 1px solid var(--color-rule); margin: 0; }
.rule--soft { border-top-color: var(--color-divider); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--color-divider); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
}
.brand:hover { color: var(--color-accent); }
.brand__mark { width: 36px; height: 36px; flex: none; color: var(--color-text); }
.brand__mark .mark-bg { fill: var(--color-text); }
.brand__mark .mark-fg { fill: var(--color-bg); }
.brand__name { font-weight: 600; }
.brand__sub { display: block; font-family: var(--font-body); font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-text-muted); margin-top: 2px; }

.primary-nav { display: flex; align-items: center; gap: var(--space-6); }
.primary-nav ul { display: flex; gap: var(--space-5); align-items: center; }
.primary-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text);
  padding-block: var(--space-2);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.primary-nav a:hover { color: var(--color-accent); }
.primary-nav a[aria-current="page"] { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.nav-toggle { display: none; }
.theme-toggle {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.theme-toggle:hover { background: var(--color-surface-offset); border-color: var(--color-text); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
[data-theme='dark'] .theme-toggle .icon-sun { display: block; }
[data-theme='dark'] .theme-toggle .icon-moon { display: none; }

@media (max-width: 820px) {
  .nav-toggle {
    display: inline-flex;
    width: 36px; height: 36px;
    align-items: center; justify-content: center;
    border: 1px solid var(--color-border); border-radius: 999px;
  }
  .primary-nav__list-wrap {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-4) var(--space-6) var(--space-6);
    display: none;
  }
  .primary-nav.is-open .primary-nav__list-wrap { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav li { border-bottom: 1px solid var(--color-divider); }
  .primary-nav li:last-child { border-bottom: 0; }
  .primary-nav a { display: block; padding: var(--space-3) 0; font-size: var(--text-base); border-bottom: 0; }
  .primary-nav a[aria-current="page"] { border-bottom: 0; padding-left: var(--space-4); border-left: 3px solid var(--color-accent); }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-rule);
  margin-top: var(--space-24);
  padding-block: var(--space-12);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
}
.site-footer h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.site-footer ul li { padding-block: 2px; }
.site-footer__meta {
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3);
  font-size: var(--text-xs);
}
@media (max-width: 720px) {
  .site-footer__inner { grid-template-columns: 1fr; gap: var(--space-8); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: 2px;
  border: 1px solid var(--color-text);
  color: var(--color-text);
  background: transparent;
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.btn:hover { background: var(--color-text); color: var(--color-bg); }
.btn--primary { background: var(--color-text); color: var(--color-bg); }
.btn--primary:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.btn--ghost { border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-text); background: var(--color-surface-offset); color: var(--color-text); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn .arrow { transition: transform var(--dur-fast) var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Card / List patterns ---------- */
.entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.entry:last-child { border-bottom: 0; }
.entry__meta { font-size: var(--text-xs); color: var(--color-text-muted); letter-spacing: 0.06em; text-transform: uppercase; }
.entry__title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 500; line-height: 1.25; letter-spacing: -0.01em; }
.entry__title a { text-decoration: none; }
.entry__title a:hover { color: var(--color-accent); }
.entry__desc { color: var(--color-text-muted); font-size: var(--text-sm); max-width: 70ch; }

/* External link arrow */
.ext::after {
  content: "↗";
  display: inline-block;
  margin-left: 0.25em;
  font-size: 0.85em;
  color: var(--color-text-muted);
  transition: transform var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.ext:hover::after { transform: translate(2px, -2px); color: var(--color-accent); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--color-text); color: var(--color-bg);
  padding: var(--space-3) var(--space-4); font-size: var(--text-sm); font-weight: 600;
  z-index: 100;
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

/* ---------- Tags / chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 999px;
}
.chip--accent { color: var(--color-accent); border-color: var(--color-accent-soft); background: var(--color-accent-soft); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
}