/*
Theme Name: Field Notes
Theme URI: https://example.com
Author: Your Agency
Author URI: https://example.com
Description: A custom editorial WordPress theme built for health and business blogging. Clinical clarity meets warm, readable design — with a signature dual-category margin system that lets readers scan Health vs Business content at a glance.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: field-notes
Tags: blog, two-columns, custom-colors, custom-menu, featured-images, theme-options, translation-ready
*/

/* =========================================================
   DESIGN TOKENS
   ========================================================= */

:root {
  /* Color palette */
  --fn-ink: #0F1B14;          /* near-black deep green — text, dark sections */
  --fn-paper: #FAF8F3;        /* warm paper white — base background */
  --fn-paper-dim: #F1EEE6;    /* slightly deeper paper for cards/sections */
  --fn-forest: #1B4332;       /* deep forest green — primary accent, Health tag */
  --fn-forest-soft: #2D6A4F;  /* lighter forest for hovers */
  --fn-amber: #C77B3E;        /* burnt amber — secondary accent, Business tag */
  --fn-amber-soft: #DA9B5F;   /* lighter amber for hovers */
  --fn-slate: #6B7280;        /* muted slate — captions, meta text */
  --fn-slate-light: #9CA3AF;  /* lighter slate — placeholders, disabled */
  --fn-line: #E2DED2;         /* hairline border color on paper */
  --fn-line-dark: rgba(255,255,255,0.12); /* hairline on dark sections */
  --fn-white: #FFFFFF;
  --fn-error: #B3422F;
  --fn-success: #2D6A4F;

  /* Typography */
  --fn-font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --fn-font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fn-font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Type scale */
  --fn-text-xs: 0.75rem;     /* 12px */
  --fn-text-sm: 0.875rem;    /* 14px */
  --fn-text-base: 1.0625rem; /* 17px */
  --fn-text-lg: 1.25rem;     /* 20px */
  --fn-text-xl: 1.625rem;    /* 26px */
  --fn-text-2xl: 2.25rem;    /* 36px */
  --fn-text-3xl: 3rem;       /* 48px */
  --fn-text-4xl: 4rem;       /* 64px */

  /* Spacing (8px base) */
  --fn-space-1: 0.5rem;
  --fn-space-2: 1rem;
  --fn-space-3: 1.5rem;
  --fn-space-4: 2rem;
  --fn-space-5: 3rem;
  --fn-space-6: 4rem;
  --fn-space-7: 6rem;
  --fn-space-8: 8rem;

  /* Layout */
  --fn-content-width: 1200px;
  --fn-content-narrow: 720px;
  --fn-radius: 3px;
  --fn-tag-bar-width: 4px;

  /* Motion */
  --fn-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --fn-duration: 240ms;
}

/* Category-specific accent (set via body class or inline) */
.is-health   { --fn-accent: var(--fn-forest); --fn-accent-soft: var(--fn-forest-soft); }
.is-business { --fn-accent: var(--fn-amber);  --fn-accent-soft: var(--fn-amber-soft); }

/* =========================================================
   RESET
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body { margin: 0; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

/* =========================================================
   BASE
   ========================================================= */

body {
  font-family: var(--fn-font-body);
  font-size: var(--fn-text-base);
  line-height: 1.65;
  color: var(--fn-ink);
  background: var(--fn-paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--fn-font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--fn-space-2) 0;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fn-text-3xl); }
h2 { font-size: var(--fn-text-2xl); }
h3 { font-size: var(--fn-text-xl); }
h4 { font-size: var(--fn-text-lg); font-family: var(--fn-font-body); font-weight: 700; }

p { margin: 0 0 var(--fn-space-3) 0; }

a.fn-link {
  border-bottom: 1px solid currentColor;
  opacity: 0.85;
  transition: opacity var(--fn-duration) var(--fn-ease);
}
a.fn-link:hover { opacity: 1; }

:focus-visible {
  outline: 2px solid var(--fn-forest);
  outline-offset: 3px;
}

.fn-container {
  max-width: var(--fn-content-width);
  margin: 0 auto;
  padding: 0 var(--fn-space-3);
}

.fn-container--narrow {
  max-width: var(--fn-content-narrow);
}

.screen-reader-text {
  position: absolute;
  left: -9999px;
}

/* =========================================================
   UTILITY / META TEXT (mono accents — the "clinical" detail)
   ========================================================= */

.fn-meta {
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fn-slate);
}

.fn-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.25em 0.65em;
  border-radius: var(--fn-radius);
}

.fn-tag--health   { background: rgba(27,67,50,0.1); color: var(--fn-forest); }
.fn-tag--business  { background: rgba(199,123,62,0.12); color: var(--fn-amber); }

/* =========================================================
   HEADER
   ========================================================= */

.fn-site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--fn-paper);
  border-bottom: 1px solid var(--fn-line);
}

.fn-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--fn-space-2) 0;
  gap: var(--fn-space-4);
}

.fn-logo {
  font-family: var(--fn-font-display);
  font-size: var(--fn-text-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}

.fn-logo span { color: var(--fn-amber); }

.fn-primary-nav ul {
  display: flex;
  gap: var(--fn-space-4);
  list-style: none;
}

.fn-primary-nav a {
  font-size: var(--fn-text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: relative;
  padding: 0.25em 0;
}

.fn-primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--fn-amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--fn-duration) var(--fn-ease);
}

.fn-primary-nav a:hover::after,
.fn-primary-nav a.current::after { transform: scaleX(1); }

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

.fn-search-toggle, .fn-menu-toggle {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  transition: background var(--fn-duration) var(--fn-ease);
}
.fn-search-toggle:hover, .fn-menu-toggle:hover { background: var(--fn-paper-dim); }

.fn-menu-toggle { display: none; }

/* =========================================================
   HERO / FEATURED
   ========================================================= */

.fn-hero {
  border-bottom: 1px solid var(--fn-line);
  padding: var(--fn-space-6) 0 var(--fn-space-5);
}

.fn-hero__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--fn-space-5);
  align-items: stretch;
}

.fn-hero__main {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 460px;
  border-radius: var(--fn-radius);
  overflow: hidden;
  background: var(--fn-ink);
  padding-left: var(--fn-tag-bar-width);
}

.fn-hero__main::before {
  content: "";
  position: absolute;
  inset: 0;
  width: var(--fn-tag-bar-width);
  background: var(--fn-accent, var(--fn-forest));
  z-index: 2;
}

.fn-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.fn-hero__content {
  position: relative;
  z-index: 1;
  padding: var(--fn-space-5);
  color: var(--fn-white);
}

.fn-hero__content h1 {
  font-size: var(--fn-text-3xl);
  margin-bottom: var(--fn-space-2);
  max-width: 14ch;
}

.fn-hero__content p {
  max-width: 46ch;
  opacity: 0.85;
  margin-bottom: var(--fn-space-2);
}

.fn-hero__side {
  display: flex;
  flex-direction: column;
  gap: var(--fn-space-3);
}

/* =========================================================
   SIGNATURE: DUAL-TAG MARGIN SYSTEM
   ========================================================= */

.fn-post-card {
  position: relative;
  padding-left: calc(var(--fn-tag-bar-width) + var(--fn-space-3));
  margin-bottom: var(--fn-space-4);
}

.fn-post-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0.2em; bottom: 0.2em;
  width: var(--fn-tag-bar-width);
  background: var(--fn-accent, var(--fn-slate-light));
  border-radius: 2px;
}

.fn-post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--fn-space-2);
  margin-bottom: 0.6em;
}

.fn-post-card h3, .fn-post-card h2 {
  margin-bottom: 0.4em;
}

.fn-post-card h3 a, .fn-post-card h2 a {
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--fn-duration) var(--fn-ease);
  padding-bottom: 2px;
}
.fn-post-card h3 a:hover, .fn-post-card h2 a:hover {
  background-size: 100% 1px;
}

.fn-post-card__excerpt {
  color: var(--fn-slate);
  font-size: var(--fn-text-sm);
}

.fn-post-card__image {
  border-radius: var(--fn-radius);
  overflow: hidden;
  margin-bottom: var(--fn-space-2);
  aspect-ratio: 16/10;
}

.fn-post-card__image img { width: 100%; height: 100%; object-fit: cover; }

/* =========================================================
   ARCHIVE / SECTION GRID
   ========================================================= */

.fn-section {
  padding: var(--fn-space-6) 0;
}

.fn-section--alt {
  background: var(--fn-paper-dim);
}

.fn-section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--fn-space-4);
  border-bottom: 2px solid var(--fn-ink);
  padding-bottom: var(--fn-space-2);
}

.fn-section__header h2 { margin: 0; }

.fn-section__header a {
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.fn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--fn-space-4) var(--fn-space-4);
}

.fn-grid--2 { grid-template-columns: repeat(2, 1fr); }

/* =========================================================
   SINGLE POST
   ========================================================= */

.fn-post-header {
  padding: var(--fn-space-6) 0 var(--fn-space-4);
  border-bottom: 1px solid var(--fn-line);
}

.fn-post-header h1 { font-size: var(--fn-text-3xl); max-width: 22ch; }

.fn-post-header__meta {
  display: flex;
  align-items: center;
  gap: var(--fn-space-3);
  margin-top: var(--fn-space-3);
  padding-top: var(--fn-space-3);
  border-top: 1px solid var(--fn-line);
}

.fn-author-chip {
  display: flex;
  align-items: center;
  gap: 0.6em;
}

.fn-author-chip img {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.fn-author-chip__name { font-weight: 700; font-size: var(--fn-text-sm); }
.fn-author-chip__date { font-size: var(--fn-text-xs); color: var(--fn-slate); }

.fn-post-body {
  max-width: var(--fn-content-narrow);
  margin: var(--fn-space-5) auto;
  padding: 0 var(--fn-space-3);
  font-size: 1.125rem;
  border-left: var(--fn-tag-bar-width) solid var(--fn-accent, var(--fn-forest));
  padding-left: calc(var(--fn-space-4) - var(--fn-tag-bar-width));
}

.fn-post-body h2 { margin-top: var(--fn-space-5); }
.fn-post-body h3 { margin-top: var(--fn-space-4); }
.fn-post-body blockquote {
  margin: var(--fn-space-4) 0;
  padding: var(--fn-space-3);
  background: var(--fn-paper-dim);
  font-family: var(--fn-font-display);
  font-style: italic;
  font-size: var(--fn-text-lg);
  border-radius: var(--fn-radius);
}
.fn-post-body img { border-radius: var(--fn-radius); margin: var(--fn-space-3) 0; }
.fn-post-body a { border-bottom: 1px solid var(--fn-accent, var(--fn-forest)); }
.fn-post-body ul, .fn-post-body ol { margin: 0 0 var(--fn-space-3) 1.2em; }
.fn-post-body li { margin-bottom: 0.5em; }

/* Author bio card */
.fn-author-bio {
  display: flex;
  gap: var(--fn-space-3);
  background: var(--fn-paper-dim);
  border-radius: var(--fn-radius);
  padding: var(--fn-space-3);
  margin: var(--fn-space-5) auto;
  max-width: var(--fn-content-narrow);
}

.fn-author-bio img {
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.fn-author-bio__name { font-family: var(--fn-font-display); font-size: var(--fn-text-lg); margin-bottom: 0.2em; }
.fn-author-bio__bio { font-size: var(--fn-text-sm); color: var(--fn-slate); margin-bottom: var(--fn-space-1); }
.fn-author-bio__social { display: flex; gap: var(--fn-space-2); }
.fn-author-bio__social a { font-size: var(--fn-text-xs); font-family: var(--fn-font-mono); text-transform: uppercase; }

/* =========================================================
   NEWSLETTER
   ========================================================= */

.fn-newsletter {
  background: var(--fn-ink);
  color: var(--fn-paper);
  padding: var(--fn-space-6) 0;
}

.fn-newsletter__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--fn-space-4);
  flex-wrap: wrap;
}

.fn-newsletter h2 { color: var(--fn-paper); max-width: 16ch; }
.fn-newsletter p { color: rgba(250,248,243,0.7); max-width: 40ch; }

.fn-newsletter-form {
  display: flex;
  gap: 0.5em;
  flex-wrap: wrap;
}

.fn-newsletter-form input[type="email"] {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--fn-radius);
  padding: 0.85em 1.1em;
  color: var(--fn-paper);
  min-width: 280px;
}
.fn-newsletter-form input[type="email"]::placeholder { color: rgba(250,248,243,0.5); }

.fn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fn-text-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.9em 1.6em;
  border-radius: var(--fn-radius);
  transition: transform var(--fn-duration) var(--fn-ease), background var(--fn-duration) var(--fn-ease);
}

.fn-btn--amber { background: var(--fn-amber); color: var(--fn-white); }
.fn-btn--amber:hover { background: var(--fn-amber-soft); transform: translateY(-1px); }
.fn-btn--forest { background: var(--fn-forest); color: var(--fn-white); }
.fn-btn--forest:hover { background: var(--fn-forest-soft); transform: translateY(-1px); }
.fn-btn--outline { background: transparent; border: 1.5px solid currentColor; }

.fn-newsletter-status { font-size: var(--fn-text-sm); margin-top: 0.6em; width: 100%; }
.fn-newsletter-status.success { color: #95D5B2; }
.fn-newsletter-status.error { color: #E5989B; }

/* =========================================================
   SIDEBAR / SEARCH+FILTER
   ========================================================= */

.fn-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--fn-space-5);
  align-items: start;
}

.fn-sidebar {
  position: sticky;
  top: calc(var(--fn-space-6) + 60px);
  display: flex;
  flex-direction: column;
  gap: var(--fn-space-4);
}

.fn-widget {
  border: 1px solid var(--fn-line);
  border-radius: var(--fn-radius);
  padding: var(--fn-space-3);
}

.fn-widget h4 {
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fn-slate);
  margin-bottom: var(--fn-space-2);
}

.fn-search-form {
  display: flex;
  border: 1px solid var(--fn-line);
  border-radius: var(--fn-radius);
  overflow: hidden;
}
.fn-search-form input[type="search"] {
  flex: 1;
  border: none;
  padding: 0.7em 1em;
  background: transparent;
}
.fn-search-form button {
  padding: 0 1em;
  background: var(--fn-ink);
  color: var(--fn-paper);
}

.fn-filter-list { list-style: none; display: flex; flex-direction: column; gap: 0.5em; }
.fn-filter-list a {
  display: flex;
  justify-content: space-between;
  font-size: var(--fn-text-sm);
  padding: 0.3em 0;
}
.fn-filter-list a:hover { color: var(--fn-amber); }
.fn-filter-list .count { font-family: var(--fn-font-mono); color: var(--fn-slate-light); font-size: var(--fn-text-xs); }

/* =========================================================
   COMMENTS
   ========================================================= */

.fn-comments {
  max-width: var(--fn-content-narrow);
  margin: var(--fn-space-5) auto;
  padding: var(--fn-space-4) var(--fn-space-3);
  border-top: 1px solid var(--fn-line);
}

.fn-comments h2 {
  font-size: var(--fn-text-xl);
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.fn-comments .comment-count {
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-sm);
  color: var(--fn-slate);
  background: var(--fn-paper-dim);
  padding: 0.1em 0.6em;
  border-radius: 12px;
}

.comment-list { list-style: none; }
.comment-list .comment {
  display: flex;
  gap: var(--fn-space-2);
  padding: var(--fn-space-3) 0;
  border-bottom: 1px solid var(--fn-line);
}
.comment-list .comment-author img { width: 44px; height: 44px; border-radius: 50%; }
.comment-list .comment-meta { font-size: var(--fn-text-xs); color: var(--fn-slate); margin-bottom: 0.3em; }
.comment-list .comment-meta b { color: var(--fn-ink); font-size: var(--fn-text-sm); }
.comment-list .children { list-style: none; margin-left: var(--fn-space-5); }

.fn-comment-form textarea, .fn-comment-form input[type="text"], .fn-comment-form input[type="email"] {
  width: 100%;
  border: 1px solid var(--fn-line);
  border-radius: var(--fn-radius);
  padding: 0.8em 1em;
  margin-bottom: var(--fn-space-2);
  background: var(--fn-paper);
}
.fn-comment-form textarea { min-height: 120px; resize: vertical; }

/* =========================================================
   FOOTER
   ========================================================= */

.fn-site-footer {
  background: var(--fn-ink);
  color: rgba(250,248,243,0.75);
  padding: var(--fn-space-6) 0 var(--fn-space-4);
}

.fn-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--fn-space-4);
  padding-bottom: var(--fn-space-5);
}

.fn-footer__brand .fn-logo { color: var(--fn-paper); margin-bottom: var(--fn-space-2); }
.fn-footer__brand p { font-size: var(--fn-text-sm); max-width: 30ch; }

.fn-footer h5 {
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(250,248,243,0.45);
  margin-bottom: var(--fn-space-2);
}

.fn-footer ul { list-style: none; display: flex; flex-direction: column; gap: 0.6em; }
.fn-footer a { font-size: var(--fn-text-sm); transition: color var(--fn-duration) var(--fn-ease); }
.fn-footer a:hover { color: var(--fn-amber-soft); }

.fn-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--fn-space-3);
  border-top: 1px solid var(--fn-line-dark);
  font-size: var(--fn-text-xs);
  color: rgba(250,248,243,0.5);
}

/* =========================================================
   ABOUT / CONTACT PAGES
   ========================================================= */

.fn-page-header {
  padding: var(--fn-space-6) 0 var(--fn-space-4);
  text-align: center;
  border-bottom: 1px solid var(--fn-line);
}
.fn-page-header h1 { font-size: var(--fn-text-3xl); }

.fn-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fn-space-5);
  margin: var(--fn-space-5) 0;
}

.fn-contact-form label {
  display: block;
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4em;
  color: var(--fn-slate);
}
.fn-contact-form .fn-field { margin-bottom: var(--fn-space-3); }
.fn-contact-form input, .fn-contact-form textarea {
  width: 100%;
  border: 1px solid var(--fn-line);
  border-radius: var(--fn-radius);
  padding: 0.85em 1em;
  background: var(--fn-paper);
}
.fn-contact-form textarea { min-height: 160px; resize: vertical; }

.fn-contact-info { display: flex; flex-direction: column; gap: var(--fn-space-3); }
.fn-contact-info__item h4 { font-size: var(--fn-text-sm); text-transform: uppercase; letter-spacing: 0.04em; color: var(--fn-slate); margin-bottom: 0.3em; }

/* =========================================================
   PAGINATION
   ========================================================= */

.fn-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5em;
  margin: var(--fn-space-5) 0;
}
.fn-pagination a, .fn-pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px; height: 40px;
  border: 1px solid var(--fn-line);
  border-radius: var(--fn-radius);
  font-family: var(--fn-font-mono);
  font-size: var(--fn-text-sm);
}
.fn-pagination .current { background: var(--fn-ink); color: var(--fn-paper); border-color: var(--fn-ink); }
.fn-pagination a:hover { border-color: var(--fn-ink); }

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 980px) {
  .fn-hero__grid { grid-template-columns: 1fr; }
  .fn-hero__main { min-height: 380px; }
  .fn-grid { grid-template-columns: repeat(2, 1fr); }
  .fn-layout { grid-template-columns: 1fr; }
  .fn-sidebar { position: static; order: -1; }
  .fn-footer__grid { grid-template-columns: 1fr 1fr; }
  .fn-contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .fn-primary-nav { display: none; }
  .fn-menu-toggle { display: flex; }
  .fn-grid { grid-template-columns: 1fr; }
  .fn-footer__grid { grid-template-columns: 1fr; gap: var(--fn-space-3); }
  h1 { font-size: var(--fn-text-2xl); }
  .fn-hero__content h1 { font-size: var(--fn-text-2xl); max-width: 100%; }
  .fn-newsletter__inner { flex-direction: column; align-items: flex-start; }
  .fn-newsletter-form { width: 100%; }
  .fn-newsletter-form input[type="email"] { flex: 1; min-width: 0; }
  .fn-post-body { border-left: none; padding-left: var(--fn-space-3); border-top: var(--fn-tag-bar-width) solid var(--fn-accent, var(--fn-forest)); padding-top: var(--fn-space-3); }
  .fn-author-bio { flex-direction: column; }
}

/* Mobile nav drawer */
.fn-mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--fn-paper);
  z-index: 100;
  transform: translateX(100%);
  transition: transform 300ms var(--fn-ease);
  padding: var(--fn-space-3);
  overflow-y: auto;
}
.fn-mobile-nav.is-open { transform: translateX(0); }
.fn-mobile-nav__close { margin-bottom: var(--fn-space-4); }
.fn-mobile-nav ul { list-style: none; display: flex; flex-direction: column; gap: var(--fn-space-3); }
.fn-mobile-nav a { font-family: var(--fn-font-display); font-size: var(--fn-text-xl); }