/* ==========================================================================
   ToscaAutomation.com — Editorial chrome stylesheet
   Tokens, nav, footer, hero, cards, buttons, badges, instructions panel.
   Never target inside .practice-canvas from here — see practice.css.
   ========================================================================== */

:root {
  /* Colors */
  --color-surface: #faf6ef;
  --color-surface-alt: #f3ecdf;
  --color-surface-card: #fffdf8;
  --color-surface-card-hover: #fff9ea;
  --color-surface-chrome: #efe6d3;
  --color-on-surface: #241f16;
  --color-on-surface-variant: #7a7160;
  --color-outline: #e6dcc8;
  --color-outline-strong: #ddc79c;
  --color-accent: #c1552c;
  --color-on-accent: #ffffff;

  /* Typography */
  --font-display-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --font-display-size: 56px;
  --font-display-weight: 400;
  --font-display-line: 1.1;
  --font-display-tracking: -0.01em;

  --font-headline-family: Georgia, serif;
  --font-headline-size: 30px;
  --font-headline-weight: 400;
  --font-headline-line: 1.2;

  --font-title-family: Georgia, serif;
  --font-title-size: 17px;
  --font-title-weight: 600;
  --font-title-line: 1.3;

  --font-body-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-body-size: 16px;
  --font-body-weight: 400;
  --font-body-line: 1.6;

  --font-body-sm-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-body-sm-size: 13.5px;
  --font-body-sm-weight: 400;
  --font-body-sm-line: 1.5;

  --font-label-caps-family: -apple-system, sans-serif;
  --font-label-caps-size: 12px;
  --font-label-caps-weight: 700;
  --font-label-caps-line: 1.4;
  --font-label-caps-tracking: 0.12em;

  --font-code-family: "SF Mono", "Consolas", "Menlo", monospace;
  --font-code-size: 13px;
  --font-code-weight: 500;
  --font-code-line: 1.5;

  /* Radii */
  --radius-sm: 6px;
  --radius-default: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Spacing */
  --space-unit: 8px;
  --space-gutter: 16px;
  --space-margin-desktop: 60px;
  --space-margin-mobile: 20px;
  --space-section-gap: 60px;
  --space-editorial-gap: 84px;

  /* Elevation */
  --shadow-card: 0 18px 32px -14px rgba(150, 90, 30, 0.28);
  --motion-lift: 220ms ease-out;
}

/* ---- Reset & base ---- */

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-on-surface);
  font-family: var(--font-body-family);
  font-size: var(--font-body-size);
  font-weight: var(--font-body-weight);
  line-height: var(--font-body-line);
}

img { max-width: 100%; display: block; }

a { color: inherit; }

h1, h2, h3, p, ul, figure { margin: 0; }

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-margin-desktop);
}

@media (max-width: 767px) {
  .container { padding-inline: var(--space-margin-mobile); }
}

/* Visible focus ring on every interactive chrome element — never rely on hover alone */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Buttons & badges ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body-family);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 14px 26px;
  border: 1px solid transparent;
  transition: transform var(--motion-lift), box-shadow var(--motion-lift);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn-primary:hover { box-shadow: var(--shadow-card); }

.btn-secondary {
  background: transparent;
  color: var(--color-on-surface);
  border-color: var(--color-outline);
}

.btn-secondary:hover { border-color: var(--color-outline-strong); }

.badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius-full);
  font-family: var(--font-label-caps-family);
  font-size: var(--font-label-caps-size);
  font-weight: var(--font-label-caps-weight);
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  padding: 6px 14px;
}

/* ---- Nav ---- */

.site-nav {
  border-bottom: 1px solid var(--color-outline);
  background: var(--color-surface);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-gutter);
  padding-block: 20px;
}

.site-nav__logo {
  font-family: var(--font-headline-family);
  font-size: 21px;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-on-surface);
}

.site-nav__logo em {
  font-style: normal;
  color: var(--color-accent);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav__links a {
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-on-surface);
}

.site-nav__links a:hover { color: var(--color-accent); }

.site-nav__cta { margin-left: 8px; }

.site-nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.site-nav__toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-on-surface);
  margin: 4px 0;
}

@media (max-width: 767px) {
  .site-nav__toggle { display: block; }

  .site-nav__links {
    display: none;
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-outline);
    padding: var(--space-margin-mobile);
  }

  .site-nav { position: relative; }

  .site-nav__links[data-open="true"] { display: flex; }

  .site-nav__links li { width: 100%; padding-block: 10px; }

  .site-nav__cta { margin-left: 0; margin-top: 8px; width: 100%; }
  .site-nav__cta .btn { width: 100%; }
}

/* ---- Sidebar (practice pages + homepage only, injected by main.js) ---- */

.page-shell {
  display: flex;
  align-items: flex-start;
}

.site-sidebar {
  width: 268px;
  flex-shrink: 0;
  background: #161d2b;
  color: #c7cede;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
}

.site-sidebar__inner { padding: 24px 0 40px; }

.site-sidebar__home {
  display: block;
  margin: 0 20px 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #2a3346;
  font-family: var(--font-body-family);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #8890a6;
  text-decoration: none;
}

.site-sidebar__home:hover { color: #fff; }

.site-sidebar__group { margin-bottom: 22px; }

.site-sidebar__group-title {
  font-family: var(--font-label-caps-family);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  color: #6b7590;
  margin: 0 20px 6px;
}

.site-sidebar__list { list-style: none; margin: 0; padding: 0; }

.site-sidebar__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: #c7cede;
  text-decoration: none;
  border-left: 3px solid transparent;
}

.site-sidebar__link:hover { background: #1e2635; color: #fff; }

.site-sidebar__link[aria-current="page"] {
  background: #1e2635;
  color: #fff;
  border-left-color: var(--color-accent);
  font-weight: 700;
}

.site-sidebar__icon { font-size: 15px; flex-shrink: 0; width: 18px; text-align: center; }

.site-sidebar__close { display: none; }

.site-sidebar__toggle {
  display: none;
  width: 100%;
  align-items: center;
  gap: 8px;
  background: #161d2b;
  color: #fff;
  border: none;
  font-family: var(--font-body-family);
  font-size: 14px;
  font-weight: 600;
  padding: 14px var(--space-margin-mobile);
  cursor: pointer;
}

.page-shell > main { flex: 1; min-width: 0; }

@media (max-width: 900px) {
  .page-shell { display: block; }

  .site-sidebar__toggle { display: flex; }

  .site-sidebar {
    position: fixed;
    inset: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    z-index: 300;
    display: none;
  }

  .site-sidebar[data-open="true"] { display: block; }

  .site-sidebar__inner { padding-top: 64px; }

  .site-sidebar__close {
    display: block;
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: 1px solid #2a3346;
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 14px;
    padding: 8px 12px;
    cursor: pointer;
  }
}

/* ---- Floating "Home" button (injected by main.js on scroll) ---- */

.back-home-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 250;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  text-decoration: none;
  font-family: var(--font-body-family);
  font-size: 14px;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--motion-lift), transform var(--motion-lift);
}

.back-home-btn--visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-home-btn:hover { filter: brightness(1.08); }

@media (max-width: 900px) {
  .back-home-btn { right: 16px; bottom: 16px; }
}

/* ---- Footer ---- */

.site-footer {
  border-top: 1px solid var(--color-outline);
  margin-top: var(--space-editorial-gap);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-gutter);
  padding-block: 32px;
  font-size: var(--font-body-sm-size);
  color: var(--color-on-surface-variant);
}

.site-footer__links {
  display: flex;
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer__links a { text-decoration: none; }
.site-footer__links a:hover { color: var(--color-accent); }

/* ---- Hero ---- */

.hero {
  padding-block: var(--space-editorial-gap);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-editorial-gap);
  align-items: center;
}

@media (max-width: 767px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-section-gap); padding-block: var(--space-section-gap); }
}

.hero__kicker {
  display: block;
  font-family: var(--font-label-caps-family);
  font-size: var(--font-label-caps-size);
  font-weight: var(--font-label-caps-weight);
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.hero__headline {
  font-family: var(--font-display-family);
  font-size: var(--font-display-size);
  font-weight: var(--font-display-weight);
  line-height: var(--font-display-line);
  letter-spacing: var(--font-display-tracking);
  margin-bottom: 20px;
}

.hero__headline em {
  font-style: italic;
  color: var(--color-accent);
}

.hero__subhead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-on-surface-variant);
  max-width: 46ch;
  margin-bottom: 28px;
}

.hero__ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.hero__microcopy {
  font-size: var(--font-body-sm-size);
  color: var(--color-on-surface-variant);
}

.hero__art {
  position: relative;
  aspect-ratio: 4 / 3.2;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-accent) 130%);
  overflow: hidden;
}

.hero__chip {
  position: absolute;
  background: #fff;
  color: var(--color-on-surface);
  font-family: var(--font-code-family);
  font-size: 12px;
  font-weight: var(--font-code-weight);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
}

.hero__chip--1 { top: 16%; left: 10%; }
.hero__chip--2 { top: 48%; right: 8%; }
.hero__chip--3 { bottom: 12%; left: 20%; }

@media (prefers-reduced-motion: no-preference) {
  .hero__chip { transition: transform var(--motion-lift); }
}

/* ---- Category grid & cards ---- */

.practice-section {
  background: var(--color-surface-alt);
  padding-block: var(--space-editorial-gap);
}

.practice-section__heading {
  font-family: var(--font-headline-family);
  font-size: var(--font-headline-size);
  font-weight: var(--font-headline-weight);
  line-height: var(--font-headline-line);
  margin-bottom: 8px;
}

.practice-section__sub {
  color: var(--color-on-surface-variant);
  max-width: 60ch;
  margin-bottom: var(--space-section-gap);
}

.category-group { margin-bottom: var(--space-section-gap); }
.category-group:last-child { margin-bottom: 0; }

.category-group__title {
  font-family: var(--font-title-family);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-on-surface);
}

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

@media (max-width: 1023px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .card-grid { grid-template-columns: 1fr; }
}

.card {
  display: block;
  background: var(--color-surface-card);
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-decoration: none;
  color: inherit;
}

@media (prefers-reduced-motion: no-preference) {
  .card {
    transition: transform var(--motion-lift), box-shadow var(--motion-lift), border-color var(--motion-lift);
  }

  .card:hover,
  .card:focus-visible {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
    border-color: var(--color-outline-strong);
    background: var(--color-surface-card-hover);
  }
}

@media (prefers-reduced-motion: reduce) {
  .card:hover,
  .card:focus-visible {
    box-shadow: var(--shadow-card);
    border-color: var(--color-outline-strong);
    background: var(--color-surface-card-hover);
  }
}

.card__icon { font-size: 28px; margin-bottom: 14px; }

.card__title {
  font-family: var(--font-title-family);
  font-size: var(--font-title-size);
  font-weight: var(--font-title-weight);
  line-height: var(--font-title-line);
  margin-bottom: 8px;
}

.card__desc {
  font-family: var(--font-body-sm-family);
  font-size: var(--font-body-sm-size);
  line-height: var(--font-body-sm-line);
  color: var(--color-on-surface-variant);
  margin-bottom: 14px;
}

.card__meta {
  display: block;
  font-family: var(--font-label-caps-family);
  font-size: var(--font-label-caps-size);
  font-weight: var(--font-label-caps-weight);
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ---- Page header (category / about / contact pages) ---- */

.page-header {
  padding-block: var(--space-section-gap) 32px;
}

.page-header__kicker {
  display: block;
  font-family: var(--font-label-caps-family);
  font-size: var(--font-label-caps-size);
  font-weight: var(--font-label-caps-weight);
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.page-header__title {
  font-family: var(--font-headline-family);
  font-size: var(--font-headline-size);
  font-weight: var(--font-headline-weight);
  line-height: var(--font-headline-line);
  margin-bottom: 8px;
}

.page-header__intro {
  color: var(--color-on-surface-variant);
  max-width: 62ch;
}

/* ---- Instructions panel ---- */

.instructions {
  background: var(--color-surface-card);
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: var(--space-section-gap);
}

.instructions__label {
  display: block;
  font-family: var(--font-label-caps-family);
  font-size: var(--font-label-caps-size);
  font-weight: var(--font-label-caps-weight);
  letter-spacing: var(--font-label-caps-tracking);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.instructions p { margin-bottom: 10px; color: var(--color-on-surface); }
.instructions p:last-child { margin-bottom: 0; }

.instructions code {
  font-family: var(--font-code-family);
  font-size: var(--font-code-size);
  font-weight: var(--font-code-weight);
  background: var(--color-surface-alt);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ---- Reset control ---- */

.reset-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-gutter);
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--color-outline);
}

.reset-control__status {
  font-size: var(--font-body-sm-size);
  color: var(--color-on-surface-variant);
}

.reset-btn {
  background: transparent;
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-sm);
  color: var(--color-on-surface);
  font-family: var(--font-body-family);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  cursor: pointer;
}

.reset-btn:hover { border-color: var(--color-outline-strong); }

.reset-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Generic content page (About) ---- */

.prose {
  max-width: 68ch;
  padding-block: 0 var(--space-editorial-gap);
}

.prose p { margin-bottom: 18px; color: var(--color-on-surface); }
.prose p:last-child { margin-bottom: 0; }

/* ---- Contact form ---- */

.contact-form {
  max-width: 520px;
  padding-block: 0 var(--space-editorial-gap);
}

.field { margin-bottom: 20px; }

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input,
.field textarea {
  width: 100%;
  font-family: var(--font-body-family);
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--color-outline);
  border-radius: var(--radius-sm);
  background: var(--color-surface-card);
  color: var(--color-on-surface);
}

.field textarea { resize: vertical; min-height: 120px; }

.field__error {
  display: none;
  color: var(--color-accent);
  font-size: var(--font-body-sm-size);
  margin-top: 6px;
}

.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: var(--color-accent); }

.field[data-invalid="true"] .field__error { display: block; }

.form-status {
  margin-top: 16px;
  font-size: var(--font-body-sm-size);
}

.form-status[data-state="success"] { color: #4c6b3c; }