/* ============================================================
   Simpletools — Main Stylesheet
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition-slow), color var(--transition-slow);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-text);
  margin: 0;
  line-height: var(--leading-snug);
  text-wrap: balance;
}
h1 { font-size: var(--text-4xl); font-weight: 700; letter-spacing: var(--tracking-tight); line-height: var(--leading-tight); }
h2 { font-size: var(--text-3xl); font-weight: 600; }
h3 { font-size: var(--text-2xl); font-weight: 600; }
h4 { font-size: var(--text-xl);  font-weight: 600; }
h5 { font-size: var(--text-lg);  font-weight: 600; }
h6 { font-size: var(--text-base);font-weight: 600; }

p { margin: 0; text-wrap: pretty; }

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  text-decoration-color: rgba(45, 106, 79, 0.35);
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-hover); text-decoration-color: currentColor; }

hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-8) 0; }

img, video { max-width: 100%; height: auto; }

ul, ol { margin: 0; padding: 0 0 0 var(--space-6); }

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

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-2);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
}
.skip-link:focus { transform: translateY(0); }

.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;
}

/* ---------- Reading Progress Bar ---------- */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-action-bright);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: 60px;
  transition: background var(--transition-slow), border-color var(--transition-slow);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}
.site-header__left  { display: flex; align-items: center; gap: var(--space-6); }
.site-header__right { display: flex; align-items: center; gap: var(--space-3); }

/* Brand / Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 22px;
  color: var(--color-text);
  text-decoration: none;
  line-height: 1;
  flex-shrink: 0;
}
.brand:hover { color: var(--color-text); text-decoration: none; }
.brand__mark { width: 22px; height: 22px; flex: none; }
.brand__simple { font-family: var(--font-serif); font-style: italic; font-weight: 500; color: var(--color-text); }
.brand__tools  { font-family: var(--font-sans); font-weight: 600; color: var(--color-primary); }

/* Navigation */
.site-nav { display: flex; align-items: center; gap: var(--space-8); }
.site-nav__link {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.site-nav__link:hover { color: var(--color-primary); text-decoration: none; }
.site-nav__link.current-menu-item,
.site-nav__link[aria-current="page"] { color: var(--color-primary); font-weight: 600; }

/* Header buttons */
.header-icon-btn {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.header-icon-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: 0;
  width: 40px; height: 40px;
  cursor: pointer;
  color: var(--color-text);
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.hamburger__line {
  display: block;
  width: 22px; height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.hamburger.is-open .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger.is-open .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-menu-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(28, 26, 23, 0.5);
  z-index: 190;
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.mobile-menu-overlay.is-visible { display: block; }
.mobile-menu-overlay.is-open { opacity: 1; }

.mobile-menu {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: min(300px, 85vw);
  background: var(--color-surface);
  z-index: 195;
  transform: translateX(-100%);
  transition: transform 200ms ease-out;
  display: flex; flex-direction: column;
  padding: var(--space-4);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateX(0); }

.mobile-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}
.mobile-menu__close {
  background: none; border: 0;
  width: 36px; height: 36px;
  cursor: pointer;
  color: var(--color-text-secondary);
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.mobile-menu__close:hover { background: var(--color-surface-2); }

.mobile-menu__nav {
  display: flex; flex-direction: column;
  gap: 2px; list-style: none; padding: 0; margin: 0;
}
.mobile-menu__nav a {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.mobile-menu__nav a:hover { background: var(--color-surface-2); color: var(--color-primary); }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-6) 0 var(--space-5);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}
.breadcrumb a { color: var(--color-primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb__sep { color: var(--color-border-strong); font-size: 11px; }
.breadcrumb__current { color: var(--color-text); font-weight: 500; }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  height: 44px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center; justify-content: center;
  gap: var(--space-2);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); border-color: var(--color-primary-hover); box-shadow: var(--shadow-md); color: white; text-decoration: none; }

.btn-action { background: var(--color-action); color: white; border-color: var(--color-action); }
.btn-action:hover:not(:disabled) { background: var(--color-action-hover); border-color: var(--color-action-hover); box-shadow: var(--shadow-md); color: white; text-decoration: none; }

.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.btn-secondary:hover:not(:disabled) { border-color: var(--color-border-strong); background: var(--color-surface-2); color: var(--color-text); text-decoration: none; }

.btn-ghost { background: transparent; color: var(--color-primary); }
.btn-ghost:hover:not(:disabled) { background: var(--color-primary-light); color: var(--color-primary-hover); text-decoration: none; }

.btn-sm { height: 36px; font-size: 13px; padding: 0 var(--space-4); }
.btn-lg { height: 52px; font-size: 16px; padding: 0 var(--space-6); }
.btn-icon { width: 44px; padding: 0; }

/* ---------- Form Inputs ---------- */
.input, .select, .textarea {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  height: 44px;
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.input::placeholder { color: var(--color-text-tertiary); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}
.input.is-error { border-color: var(--color-error); }
.textarea { height: auto; min-height: 96px; padding: var(--space-4); line-height: var(--leading-normal); resize: vertical; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236B6560' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px;
  padding-right: var(--space-10);
  cursor: pointer;
}
.label { display: block; font-family: var(--font-sans); font-size: 13px; font-weight: 500; color: var(--color-text-secondary); margin-bottom: var(--space-2); }
.input-error { font-size: 13px; color: var(--color-error); margin-top: var(--space-2); font-weight: 500; }
.input-group { display: flex; flex-direction: column; gap: 0; }

/* ---------- Tags / Badges ---------- */
.tag {
  display: inline-flex; align-items: center;
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap; line-height: 1.4;
}
.tag-seo         { background: #EAF4EF; color: #2D6A4F; }
.tag-kalkulator  { background: #FEF3DC; color: #B8720A; }
.tag-przelicznik { background: #EBF5FB; color: #2471A3; }
.tag-blog        { background: #F0EDE7; color: #6B6560; }
.tag-tekst       { background: #FEF0E6; color: #E07B39; }
.tag-default     { background: var(--color-surface-2); color: var(--color-text-secondary); }

/* ---------- Tool Card ---------- */
.tool-card {
  position: relative;
  display: flex; flex-direction: column;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  text-decoration: none; color: inherit;
  transition: all var(--transition);
}
.tool-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: inherit; text-decoration: none; }
.tool-card__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.tool-card__icon {
  width: 36px; height: 36px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.tool-card__title { font-family: var(--font-serif); font-size: 18px; font-weight: 600; color: var(--color-text); margin: 0; }
.tool-card__desc  { font-size: 14px; color: var(--color-text-secondary); line-height: var(--leading-snug); margin: 0; }
.tool-card__cta   { font-family: var(--font-sans); font-size: 13px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: var(--space-1); margin-top: auto; }
.tool-card--featured { border-left: 3px solid var(--color-primary); }

/* ---------- Blog Card ---------- */
.blog-card {
  display: flex; flex-direction: column;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-decoration: none; color: inherit;
  transition: all var(--transition);
}
.blog-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: inherit; text-decoration: none; }
.blog-card__meta { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); font-family: var(--font-sans); font-size: 12px; color: var(--color-text-tertiary); }
.blog-card__title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; color: var(--color-text); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: var(--leading-snug); }
.blog-card__excerpt { font-size: 14px; color: var(--color-text-secondary); margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.blog-card__cta { font-family: var(--font-sans); font-size: 13px; font-weight: 600; color: var(--color-primary); margin-top: auto; }

/* ---------- Category Card ---------- */
.cat-card {
  position: relative;
  display: flex; flex-direction: column;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-decoration: none; color: inherit;
  transition: all var(--transition);
  overflow: hidden;
}
.cat-card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--cat-tint, var(--color-primary-light)) 0%, transparent 55%);
  opacity: 0.65;
  pointer-events: none;
}
.cat-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: inherit; text-decoration: none; }
.cat-card > * { position: relative; z-index: 1; }
.cat-card__icon {
  width: 44px; height: 44px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--cat-color, var(--color-primary));
}
.cat-card__title { font-family: var(--font-serif); font-size: 22px; font-weight: 600; color: var(--color-text); margin: 0; }
.cat-card__count { font-family: var(--font-mono); font-size: 12px; color: var(--color-text-secondary); font-weight: 500; }
.cat-card__desc  { font-size: 14px; color: var(--color-text-secondary); margin: 0; }

/* ---------- Page layout ---------- */
.page-main {
  padding-top: var(--space-4);
  padding-bottom: var(--space-16);
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr var(--layout-sidebar);
  gap: var(--layout-gap);
  align-items: start;
}
.tool-layout__main  { min-width: 0; }
.tool-layout__sidebar {
  position: sticky;
  top: 80px;
  display: flex; flex-direction: column;
  gap: var(--space-6);
}

/* ---------- Tool Wrapper ---------- */
.tool-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin: var(--space-6) 0 var(--space-8);
}
.tool-wrapper__header {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
}
.tool-wrapper__title {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-secondary); margin: 0;
}
.tool-wrapper__body { padding: var(--space-6) var(--space-5); }
.tool-wrapper__result {
  background: var(--color-action-light);
  border-top: 1px solid var(--color-border);
  padding: var(--space-5);
  animation: fadeInUp 200ms ease;
}
.tool-wrapper__result-title {
  font-family: var(--font-sans);
  font-size: 12px; font-weight: 600;
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--color-action-hover); margin: 0 0 var(--space-4);
}
.result-row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--space-4); padding: var(--space-2) 0;
}
.result-row + .result-row { border-top: 1px dashed rgba(184, 114, 10, 0.25); }
.result-label { font-family: var(--font-sans); font-size: 14px; color: var(--color-text-secondary); }
.result-value { font-family: var(--font-mono); font-weight: 500; font-size: 20px; color: var(--color-text); font-variant-numeric: tabular-nums; letter-spacing: var(--tracking-tight); }
.result-value--big { font-size: 28px; font-weight: 700; }

/* ---------- Ad Slots ---------- */
.ad-block { display: flex; flex-direction: column; gap: 4px; }
.ad-label { font-family: var(--font-sans); font-size: 10px; text-transform: uppercase; letter-spacing: var(--tracking-wider); color: var(--color-text-tertiary); text-align: center; }
.ad-slot {
  background: var(--color-surface-2);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
}
.ad-slot--top     { min-height: 100px; }
.ad-slot--between { min-height: 120px; }
.ad-slot--sidebar { min-height: 280px; width: 100%; }
.ad-slot--footer  { min-height: 100px; }

/* ---------- FAQ Accordion ---------- */
.faq {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}
.faq__item { border-bottom: 1px solid var(--color-border); }
.faq__item:last-child { border-bottom: 0; }
.faq__btn {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: none; border: 0;
  cursor: pointer; text-align: left;
  font-family: var(--font-serif);
  font-size: 16px; font-weight: 600;
  color: var(--color-text);
  gap: var(--space-4);
}
.faq__btn:hover { background: var(--color-surface-2); }
.faq__icon { flex: none; width: 20px; height: 20px; color: var(--color-primary); transition: transform var(--transition-slow); }
.faq__item.is-open .faq__icon { transform: rotate(45deg); }
.faq__item.is-open { border-left: 3px solid var(--color-primary); }
.faq__body {
  padding: 0 var(--space-5) var(--space-5);
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  display: none;
}
.faq__item.is-open .faq__body { display: block; }

/* ---------- Sidebar Widgets ---------- */
.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.sidebar-widget__title {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.sidebar-widget__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.sidebar-widget__link { display: flex; align-items: baseline; gap: var(--space-2); color: var(--color-text); text-decoration: none; font-size: 14px; }
.sidebar-widget__link:hover { color: var(--color-primary); text-decoration: none; }
.sidebar-widget__bullet { font-family: var(--font-mono); font-size: 11px; color: var(--color-primary); font-weight: 500; }

/* ---------- TOC (Table of Contents) ---------- */
.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.toc__title {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.toc__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.toc__list ul { list-style: none; padding-left: var(--space-4); margin-top: var(--space-2); display: flex; flex-direction: column; gap: var(--space-2); }
.toc__list a { font-size: 13px; color: var(--color-text-secondary); text-decoration: none; display: block; padding: 2px 0; transition: color var(--transition-fast); }
.toc__list a:hover { color: var(--color-primary); }
.toc__list a.is-active { color: var(--color-primary); font-weight: 600; }
.toc__list ul a { font-size: 12px; }

/* ---------- Post Meta ---------- */
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: var(--space-4) 0;
}
.post-meta__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.post-meta svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ---------- Social Sharing ---------- */
.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-8) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.share-buttons__label {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  width: 100%;
}
.share-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  height: 36px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}
.share-btn--facebook  { background: #1877F2; color: white; }
.share-btn--twitter   { background: #000; color: white; }
.share-btn--linkedin  { background: #0A66C2; color: white; }
.share-btn--copy      { background: var(--color-surface-2); border-color: var(--color-border); color: var(--color-text); }
.share-btn:hover { opacity: 0.85; }
.share-btn--copy:hover { border-color: var(--color-border-strong); }
.share-btn svg { width: 16px; height: 16px; }

/* ---------- Author Box ---------- */
.author-box {
  display: flex;
  gap: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin: var(--space-8) 0;
}
.author-box__avatar img {
  width: 64px; height: 64px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
}
.author-box__avatar {
  width: 64px; height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-serif); font-size: var(--text-xl); font-weight: 700;
}
.author-box__content { display: flex; flex-direction: column; gap: var(--space-2); }
.author-box__label { font-family: var(--font-sans); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: var(--tracking-wide); color: var(--color-text-tertiary); }
.author-box__name  { font-family: var(--font-serif); font-size: var(--text-xl); font-weight: 600; color: var(--color-text); }
.author-box__bio   { font-size: 14px; color: var(--color-text-secondary); line-height: var(--leading-normal); }

/* ---------- Related Posts ---------- */
.related-posts { margin: var(--space-10) 0; }
.related-posts__title { font-family: var(--font-serif); font-size: var(--text-2xl); font-weight: 600; margin: 0 0 var(--space-5); }

/* ---------- Prose (article body) ---------- */
.prose {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: var(--leading-relaxed);
  color: var(--color-text);
}
.prose > * + * { margin-top: var(--space-5); }
.prose h2 { font-size: var(--text-2xl); margin-top: var(--space-10); scroll-margin-top: 80px; }
.prose h3 { font-size: var(--text-xl);  margin-top: var(--space-8);  scroll-margin-top: 80px; }
.prose h4 { font-size: var(--text-lg);  margin-top: var(--space-6);  scroll-margin-top: 80px; }
.prose ul, .prose ol { padding-left: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2); }
.prose blockquote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-2) var(--space-5);
  font-style: italic;
  color: var(--color-text-secondary);
  background: var(--color-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-serif); font-size: var(--text-lg);
}
.prose code {
  font-family: var(--font-mono); font-size: 0.92em;
  background: var(--color-surface-2); padding: 2px 6px;
  border-radius: var(--radius-sm); border: 1px solid var(--color-border);
}
.prose pre { background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-4); overflow-x: auto; }
.prose pre code { background: none; border: none; padding: 0; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { padding: var(--space-3) var(--space-4); border: 1px solid var(--color-border); text-align: left; }
.prose th { background: var(--color-surface-2); font-weight: 600; }
.prose img { max-width: 100%; border-radius: var(--radius-md); }
.prose a { color: var(--color-primary); }

/* ---------- Hero ---------- */
.hero { padding: var(--space-16) 0 var(--space-12); }
.hero__inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-5); max-width: 760px; margin: 0 auto; }
.hero__eyebrow { font-family: var(--font-sans); font-size: 12px; font-weight: 600; letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--color-primary); display: inline-flex; align-items: center; gap: var(--space-2); }
.hero__eyebrow::before, .hero__eyebrow::after { content: ''; width: 24px; height: 1px; background: var(--color-border-strong); }
.hero h1 { font-size: var(--text-5xl); }
.hero__lead { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 56ch; line-height: var(--leading-snug); }
.hero__stats { display: flex; gap: var(--space-6); font-family: var(--font-sans); font-size: 14px; color: var(--color-text-secondary); }
.hero__stat-item { display: inline-flex; align-items: center; gap: var(--space-2); }
.hero__search { width: 100%; max-width: 560px; margin-top: var(--space-3); position: relative; }
.hero__search-input {
  height: 56px; font-size: 16px;
  padding-left: 52px; padding-right: 116px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  width: 100%;
  font-family: var(--font-sans);
  color: var(--color-text);
}
.hero__search-input:focus { outline: none; border-color: var(--color-primary); box-shadow: var(--shadow-md), var(--shadow-focus); }
.hero__search-icon { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--color-text-secondary); pointer-events: none; }
.hero__search-btn  { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); height: 44px; }

/* ---------- Section headers ---------- */
.section-head { display: flex; align-items: end; justify-content: space-between; gap: var(--space-4); margin: var(--space-12) 0 var(--space-5); border-bottom: 1px solid var(--color-border); padding-bottom: var(--space-3); }
.section-head h2 { font-size: var(--text-2xl); margin: 0; }
.section-head__more { font-family: var(--font-sans); font-size: 13px; font-weight: 600; color: var(--color-primary); text-decoration: none; display: inline-flex; align-items: center; gap: var(--space-1); }
.section-eyebrow { font-family: var(--font-sans); font-size: 11px; font-weight: 600; letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--color-text-tertiary); }

/* ---------- Grid ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-text);
  color: rgba(247, 244, 239, 0.7);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
  border-top: 3px solid var(--color-primary);
}
.site-footer a { color: rgba(247, 244, 239, 0.9); text-decoration: none; }
.site-footer a:hover { color: white; text-decoration: underline; }
.site-footer__cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-12); margin-bottom: var(--space-12); }
.site-footer__brand { font-size: 22px; color: white; }
.site-footer__brand .brand__simple { color: rgba(247,244,239,0.9); font-style: italic; font-family: var(--font-serif); }
.site-footer__brand .brand__tools  { color: var(--color-primary-mid); font-family: var(--font-sans); font-weight: 600; }
.site-footer__about { font-size: 14px; margin-top: var(--space-3); max-width: 30ch; line-height: var(--leading-normal); }
.site-footer__heading { font-family: var(--font-sans); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: var(--tracking-wide); color: var(--color-primary-mid); margin: 0 0 var(--space-4); }
.site-footer__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); font-size: 14px; }
.site-footer__bottom { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(247,244,239,0.12); padding-top: var(--space-6); font-size: 13px; flex-wrap: wrap; gap: var(--space-4); }
.site-footer__legal { display: flex; gap: var(--space-5); }
.footer-goto-top { display: inline-flex; align-items: center; gap: var(--space-2); background: none; border: 1px solid rgba(247,244,239,0.2); color: rgba(247,244,239,0.7); padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); cursor: pointer; font-family: var(--font-sans); font-size: 13px; transition: all var(--transition-fast); }
.footer-goto-top:hover { border-color: rgba(247,244,239,0.5); color: white; }

/* ---------- Page Header ---------- */
.page-head { margin-bottom: var(--space-4); }
.page-head h1 { margin: 0; }
.page-head__lead { font-size: var(--text-lg); color: var(--color-text-secondary); margin-top: var(--space-3); max-width: 60ch; line-height: var(--leading-snug); }

/* ---------- 404 ---------- */
.notfound { padding: var(--space-20) 0; text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-5); }
.notfound__code { font-family: var(--font-serif); font-size: clamp(80px, 15vw, 160px); line-height: 1; font-weight: 700; color: var(--color-primary); letter-spacing: var(--tracking-tight); }
.notfound__title { font-family: var(--font-serif); font-size: var(--text-3xl); font-weight: 600; }
.notfound__lead  { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 50ch; }

/* ---------- Scroll to top ---------- */
#scroll-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px; height: 44px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 150;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  transform: translateY(10px);
}
#scroll-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
#scroll-to-top:hover { background: var(--color-primary-hover); }

/* ---------- Cookie Consent ---------- */
#cookie-consent {
  position: fixed;
  bottom: var(--space-6);
  left: var(--space-6);
  max-width: 380px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  z-index: 300;
  display: none;
  animation: fadeInUp 300ms ease;
}
#cookie-consent.is-visible { display: block; }
.cookie__title { font-family: var(--font-serif); font-size: 18px; font-weight: 600; margin: 0 0 var(--space-2); }
.cookie__text  { font-size: 13px; color: var(--color-text-secondary); line-height: var(--leading-normal); margin: 0 0 var(--space-4); }
.cookie__actions { display: flex; gap: var(--space-2); }

/* ---------- Dark mode toggle ---------- */
.dark-mode-toggle {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.dark-mode-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
.dark-mode-toggle .icon-sun  { display: none; }
.dark-mode-toggle .icon-moon { display: block; }
body.dark-mode .dark-mode-toggle .icon-sun  { display: block; }
body.dark-mode .dark-mode-toggle .icon-moon { display: none; }

/* ---------- Search page ---------- */
.search-results { display: flex; flex-direction: column; gap: var(--space-4); }
.search-result {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-2);
  text-decoration: none; color: inherit;
  transition: all var(--transition);
}
.search-result:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); color: inherit; }
.search-result__title { font-family: var(--font-serif); font-size: 20px; font-weight: 600; color: var(--color-primary); margin: 0; }
.search-result__excerpt { font-size: 14px; color: var(--color-text-secondary); }
.search-result mark { background: var(--color-action-light); color: var(--color-text); padding: 0 2px; border-radius: 2px; }

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-10) 0;
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans); font-size: 14px;
  color: var(--color-text); text-decoration: none;
  transition: all var(--transition-fast);
}
.pagination a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination .current { background: var(--color-primary); border-color: var(--color-primary); color: white; }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 250ms ease both; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  .tool-layout { grid-template-columns: 1fr; }
  .tool-layout__sidebar { position: static; display: none; }
  .ad-slot--sidebar { display: none; }
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .site-footer__cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  .hero h1 { font-size: var(--text-4xl); }
  .site-nav { display: none; }
  .hamburger { display: flex; }
  .hero { padding: var(--space-10) 0 var(--space-8); }
  #scroll-to-top { bottom: var(--space-4); right: var(--space-4); }
  #cookie-consent { left: var(--space-4); right: var(--space-4); max-width: none; }
  .author-box { flex-direction: column; }
}

@media (max-width: 560px) {
  h1 { font-size: var(--text-2xl); }
  .hero h1 { font-size: var(--text-3xl); }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .site-footer__cols { grid-template-columns: 1fr; }
  .share-buttons { flex-direction: column; }
  .container { padding: 0 var(--space-4); }
  .hero__stats { flex-direction: column; gap: var(--space-2); align-items: center; }
}

@media (max-width: 400px) {
  .site-header { height: 56px; }
}