/* ==========================================================================
   Evan Brown — personal site
   --------------------------------------------------------------------------
   EVERYTHING YOU'LL WANT TO TWEAK LIVES IN THE TWO BLOCKS BELOW.
   1) Design tokens (fonts, sizes, spacing, layout widths)
   2) Color themes (light + dark)
   ========================================================================== */

/* 1) DESIGN TOKENS ------------------------------------------------------- */
:root {
  /* Fonts */
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-display: "Prata", Georgia, "Times New Roman", serif;   /* the italic name */
  --font-script: "Italianno", "Snell Roundhand", cursive;        /* the signature logo */

  /* Type scale */
  --text-xs: 0.75rem;    /* labels, pills */
  --text-sm: 0.875rem;   /* meta text */
  --text-base: 1rem;     /* body */
  --text-lg: 1.125rem;
  --text-name: clamp(2rem, 6vw, 2.5rem);
  --tracking-label: 0.25em;   /* ABOUT / nav letter-spacing */
  --tracking-body: 0.02em;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  /* Layout */
  --content-width: 38rem;   /* width of the reading column */
  --sheet-width: 72rem;     /* width of the page "sheet" on big screens */
  --gutter: 1rem;           /* side padding on phones */
  --radius: 6px;
  --radius-pill: 999px;
  --photo-size: clamp(11rem, 45vw, 15rem);

  /* Motion */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --dur: 200ms;
}

/* 2) COLOR THEMES -------------------------------------------------------- */
/* Light theme (default) */
:root,
:root[data-theme="light"] {
  --color-frame: #1d211d;       /* dark bands either side of the page on desktop */
  --color-bg: #ffffff;          /* page background */
  --color-surface: #f3f5f1;     /* pills, subtle fills */
  --color-text: #1b1d1b;
  --color-muted: #5f6660;
  --color-rule: #e2e5e0;        /* thin divider lines */
  --color-accent: #4d6a41;      /* sage green, darkened for contrast on white */
  --color-accent-soft: #95b084; /* the original ashe.ai sage */
  --color-on-accent: #ffffff;
  --shadow-photo: 0 12px 40px rgba(0, 0, 0, .12);
  color-scheme: light;
}

/* Dark theme — used when the visitor's device is in dark mode… */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-frame: #080a08;
    --color-bg: #0e110e;
    --color-surface: #1b211b;
    --color-text: #e5e7eb;
    --color-muted: #9ca3af;
    --color-rule: #262d26;
    --color-accent: #95b084;
    --color-accent-soft: #95b084;
    --color-on-accent: #0e110e;
    --shadow-photo: 0 12px 40px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}
/* …or when they flip the toggle */
:root[data-theme="dark"] {
  --color-frame: #080a08;
  --color-bg: #0e110e;
  --color-surface: #1b211b;
  --color-text: #e5e7eb;
  --color-muted: #9ca3af;
  --color-rule: #262d26;
  --color-accent: #95b084;
  --color-accent-soft: #95b084;
  --color-on-accent: #0e110e;
  --shadow-photo: 0 12px 40px rgba(0, 0, 0, .5);
  color-scheme: dark;
}

/* ==========================================================================
   Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  background: var(--color-frame);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

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

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute; left: var(--space-4); top: -3rem;
  z-index: 100;
  background: var(--color-accent); color: var(--color-on-accent);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius);
  text-decoration: none; font-size: var(--text-sm);
}
.skip-link:focus { top: var(--space-4); }

/* The page "sheet" (white/dark panel between the frame bands on desktop) */
.sheet {
  max-width: var(--sheet-width);
  margin-inline: auto;
  min-height: 100vh;
  background: var(--color-bg);
  transition: background-color var(--dur) var(--ease);
}

.container {
  width: 100%;
  max-width: calc(var(--content-width) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ==========================================================================
   Header + navigation
   ========================================================================== */
.site-header {
  background: var(--color-bg);
  position: sticky; top: 0; z-index: 50;
  transition: background-color var(--dur) var(--ease);
}

.header-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
}

.logo {
  font-family: var(--font-script);
  font-size: 2.4rem;
  line-height: 1;
  color: var(--color-accent);
  text-decoration: none;
  padding-top: .2rem;
}

.header-actions { display: flex; align-items: center; gap: var(--space-2); }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 2.5rem; height: 2.5rem;
  border: 0; border-radius: var(--radius-pill);
  background: transparent; color: var(--color-text);
  cursor: pointer;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.icon-btn:hover { color: var(--color-accent); background: var(--color-surface); }
.icon-btn svg { width: 1.2rem; height: 1.2rem; }

/* Sun/moon swap */
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

.menu-toggle { display: none; }

.site-nav {
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
}
.site-nav ul {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: var(--space-1) var(--space-5);
  padding-inline: var(--space-5);
}
.site-nav a {
  display: inline-block;
  padding: var(--space-4) 0;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.site-nav a:hover { color: var(--color-accent); text-decoration: underline; text-underline-offset: 6px; }
.site-nav a[aria-current="true"] { color: var(--color-muted); }

/* Tablet widths: tighten the nav so all links fit on one line */
@media (min-width: 781px) and (max-width: 960px) {
  .site-nav ul { gap: var(--space-1) var(--space-4); }
  .site-nav a { letter-spacing: 0.14em; }
}

/* Phone: nav collapses behind a menu button */
@media (max-width: 780px) {
  .menu-toggle { display: inline-grid; }
  .site-nav { display: none; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 0; }
  .site-nav a { padding: var(--space-3) 0; }
  .header-top { padding-inline: var(--gutter); }
}

/* ==========================================================================
   Sections — shared
   ========================================================================== */
.section { padding-block: var(--space-7); scroll-margin-top: 7rem; }
.section + .section {
  /* thin divider that lines up with the text column */
  background: linear-gradient(var(--color-rule), var(--color-rule)) no-repeat top center / calc(100% - 2 * var(--gutter)) 1px;
}

.eyebrow {
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.2;
  text-transform: lowercase;
  margin-bottom: var(--space-5);
}

.section-intro {
  color: var(--color-muted);
  margin-bottom: var(--space-5);
  letter-spacing: var(--tracking-body);
}

.text-link {
  color: var(--color-accent);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  text-decoration: none;
}
.text-link:hover { text-decoration: underline dotted; text-underline-offset: 4px; }

/* Reveal-on-scroll (only when JS is running — see script.js) */
.js .reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-top: var(--space-7); text-align: left; }

.portrait {
  width: var(--photo-size); height: var(--photo-size);
  margin: 0 auto var(--space-6);
  border-radius: 50%;
  border: 1px solid var(--color-accent-soft);
  padding: 4px;
  box-shadow: var(--shadow-photo);
}
.portrait img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.hero-name {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-name);
  line-height: 1.15;
  text-transform: lowercase;
  margin-bottom: var(--space-2);
}

.hero-email {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--color-muted);
}
.hero-email:hover { color: var(--color-accent); }

.hero-tagline {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  line-height: 1.5;
  letter-spacing: var(--tracking-body);
}

.hero-links { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }

.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn svg { width: 1rem; height: 1rem; }
.btn-primary { background: var(--color-accent); color: var(--color-on-accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--color-rule); color: var(--color-text); background: transparent; }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ==========================================================================
   About
   ========================================================================== */
.bio {
  border-left: 1px solid var(--color-accent-soft);
  padding-left: var(--space-5);
}
.bio p {
  font-weight: 300;
  letter-spacing: var(--tracking-body);
  line-height: 1.75;
}
.bio p + p { margin-top: var(--space-4); }
.bio strong { font-weight: 600; color: var(--color-accent); }
.bio .hi strong { color: var(--color-text); }

.more-toggle {
  margin-top: var(--space-5);
  padding: var(--space-2) var(--space-4);
  border: 0; border-radius: var(--radius);
  background: var(--color-surface); color: var(--color-text);
  font: inherit; font-size: var(--text-sm); font-weight: 500;
  cursor: pointer;
}
.more-toggle:hover { color: var(--color-accent); }

.more-content { margin-top: var(--space-5); }
.more-content[hidden] { display: none; }

.timeline { margin-top: var(--space-5); }
.timeline li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: var(--space-4);
  padding-block: var(--space-3);
  border-top: 1px solid var(--color-rule);
  font-size: var(--text-sm);
}
.timeline .when { color: var(--color-muted); }
.timeline .what { font-weight: 500; }
.timeline .where { color: var(--color-muted); }
@media (max-width: 480px) {
  .timeline li { grid-template-columns: 1fr; gap: 0; }
}

/* ==========================================================================
   Pills (tags + filters)
   ========================================================================== */
.pill {
  display: inline-block;
  padding: .15rem .7rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 500;
  line-height: 1.6;
}

.filters { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.filter {
  border: 0; cursor: pointer; font: inherit;
  padding: .3rem .85rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-xs); font-weight: 500;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.filter:hover { color: var(--color-accent); }
.filter[aria-pressed="true"] { background: var(--color-text); color: var(--color-bg); }

/* ==========================================================================
   Projects (timeline-style list, like ashe.ai)
   ========================================================================== */
.project {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-rule);
}
.project:last-child { border-bottom: 1px solid var(--color-rule); }
.project[hidden] { display: none; }

.project-icon {
  width: 2.5rem; height: 2.5rem;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-accent);
}
.project-icon svg { width: 1.25rem; height: 1.25rem; }

.project h3 { font-size: var(--text-base); font-weight: 600; line-height: 1.4; }
.project .kind { font-size: var(--text-sm); color: var(--color-muted); }
.project p.desc { margin-top: var(--space-2); font-size: var(--text-sm); color: var(--color-muted); line-height: 1.6; }
.project .tags { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-2); margin-top: var(--space-3); }
.project .text-link { display: inline-block; margin-top: var(--space-3); }

/* ==========================================================================
   Hobbies + Interests
   ========================================================================== */
.item-list li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-rule);
}
.item-list li:last-child { border-bottom: 1px solid var(--color-rule); }
.item-list h3 { font-size: var(--text-base); font-weight: 600; }
.item-list p { font-size: var(--text-sm); color: var(--color-muted); margin-top: var(--space-1); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (max-width: 400px) {
  .card-grid { grid-template-columns: 1fr; }
}
.card {
  padding: var(--space-5);
  border: 1px solid var(--color-rule);
  border-radius: calc(var(--radius) * 2);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.card:hover { border-color: var(--color-accent-soft); transform: translateY(-2px); }
.card .card-art { width: 3rem; height: 3rem; color: var(--color-accent); margin-bottom: var(--space-4); }
.card h3 { font-size: var(--text-base); font-weight: 600; }
.card p { font-size: var(--text-sm); color: var(--color-muted); margin-top: var(--space-2); line-height: 1.55; }

/* ==========================================================================
   Blog
   ========================================================================== */
.post { border-top: 1px solid var(--color-rule); }
.post:last-child { border-bottom: 1px solid var(--color-rule); }
.post a {
  display: flex; flex-direction: column; gap: var(--space-1);
  padding-block: var(--space-4);
  text-decoration: none;
}
.post time { font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-muted); }
.post-title { font-weight: 600; line-height: 1.4; transition: color var(--dur) var(--ease); }
.post a:hover .post-title { color: var(--color-accent); }
.post-desc { font-size: var(--text-sm); color: var(--color-muted); line-height: 1.6; }
.posts + .hero-links { margin-top: var(--space-5); }

/* ==========================================================================
   Library
   ========================================================================== */
.library-controls {
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between;
  gap: var(--space-3) var(--space-4);
}
.library-controls .filters { flex: 1 1 16rem; }

.sort { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); color: var(--color-muted); }
.sort select {
  font: inherit; font-weight: 500; color: var(--color-text);
  padding: .3rem 1.6rem .3rem .7rem;
  border: 1px solid var(--color-rule); border-radius: var(--radius-pill);
  background: var(--color-bg);
  cursor: pointer;
}
.sort select:hover { border-color: var(--color-accent-soft); }

.book-count { font-size: var(--text-xs); color: var(--color-muted); margin-bottom: var(--space-3); }

.book { border-top: 1px solid var(--color-rule); }
.book:last-child { border-bottom: 1px solid var(--color-rule); }
.book[hidden] { display: none; }

.book summary {
  display: grid;
  grid-template-columns: 2.5rem 1fr 1.25rem;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
  cursor: pointer;
  list-style: none;
}
.book summary::-webkit-details-marker { display: none; }
.book summary:hover .book-title { color: var(--color-accent); }

.book-head { display: flex; flex-direction: column; min-width: 0; }
.book-title { font-weight: 600; line-height: 1.4; transition: color var(--dur) var(--ease); }
.book-author { font-size: var(--text-sm); color: var(--color-muted); }

.book-chevron { width: 1.1rem; height: 1.1rem; color: var(--color-muted); transition: transform var(--dur) var(--ease); }
.book details[open] .book-chevron { transform: rotate(180deg); }

.book-body { padding: 0 0 var(--space-5) calc(2.5rem + var(--space-4)); }
.book-meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); }
.book .desc { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--color-muted); line-height: 1.6; }

.rating { font-size: var(--text-sm); color: var(--color-muted); }
.rating .on { color: var(--color-accent); letter-spacing: .1em; }
.rating .off { color: var(--color-rule); letter-spacing: .1em; }

@media (max-width: 480px) {
  .book-body { padding-left: 0; }
}

/* ==========================================================================
   Photography
   ========================================================================== */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
@media (max-width: 480px) {
  .photo-grid { grid-template-columns: 1fr; }
}

.photo {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
}
.photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

/* Caption slides up on hover (mouse) or focus (keyboard / tap on phones) */
.photo figcaption {
  position: absolute; inset: auto 0 0 0;
  display: flex; flex-direction: column; gap: 2px;
  padding: var(--space-6) var(--space-3) var(--space-3);
  background: linear-gradient(to top, rgba(0, 0, 0, .78), rgba(0, 0, 0, 0));
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.photo:hover figcaption,
.photo:focus figcaption { opacity: 1; transform: none; }
.photo:hover img,
.photo:focus img { transform: scale(1.03); }
.photo:focus-visible { outline-offset: 2px; }

.photo-caption { font-size: var(--text-sm); font-weight: 600; line-height: 1.35; }
.photo-location {
  display: inline-flex; align-items: center; gap: var(--space-1);
  font-size: var(--text-xs); letter-spacing: 0.04em;
  color: rgba(255, 255, 255, .85);
}
.photo-location svg { width: .8rem; height: .8rem; flex: none; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-rule);
  padding-block: var(--space-7) var(--space-6);
  text-align: center;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
}
.site-footer .location { color: var(--color-muted); }
.social { display: flex; justify-content: center; gap: var(--space-4); margin-block: var(--space-5); }
.social a {
  display: inline-grid; place-items: center;
  width: 2.75rem; height: 2.75rem;
  border-radius: 50%;
  color: var(--color-text);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.social a:hover { color: var(--color-accent); background: var(--color-surface); }
.social svg { width: 1.35rem; height: 1.35rem; }
.copyright { color: var(--color-muted); font-size: var(--text-xs); }

/* ==========================================================================
   Desktop frame (dark bands either side, like ashe.ai)
   ========================================================================== */
@media (min-width: 900px) {
  :root { --gutter: 1.5rem; }
  body { padding-inline: 3.5rem; }
  .section { padding-block: var(--space-8); }
}