/* ==========================================================================
   LoremCraft — Global styles & theme
   ========================================================================== */

:root {
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas, monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  --header-height: 72px;
  --container-max: 1140px;
  --container-narrow: 800px;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --bg-muted: #f1f5f9;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --border: #e2e8f0;
  --accent: #ea580c;
  --accent-hover: #c2410c;
  --accent-muted: rgba(234, 88, 12, 0.14);
  --hero-gradient: linear-gradient(135deg, #fef2f2 0%, #fff7ed 45%, #ffedd5 100%);
  --hero-pattern: radial-gradient(circle at 20% 80%, rgba(220, 38, 38, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(234, 88, 12, 0.14) 0%, transparent 50%);
  --focus-ring: 0 0 0 3px rgba(234, 88, 12, 0.35);
  --toast-bg: #0f172a;
  --toast-text: #f8fafc;
  --danger: #dc2626;
  --success: #059669;
}

[data-theme="dark"] {
  --bg: #0f172a;
  --bg-elevated: #1e293b;
  --bg-muted: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;
  --border: #334155;
  --accent: #fb923c;
  --accent-hover: #fdba74;
  --accent-muted: rgba(251, 146, 60, 0.18);
  --hero-gradient: linear-gradient(135deg, #450a0a 0%, #1c1917 45%, #431407 100%);
  --hero-pattern: radial-gradient(circle at 20% 80%, rgba(220, 38, 38, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.18) 0%, transparent 50%);
  --focus-ring: 0 0 0 3px rgba(251, 146, 60, 0.4);
  --toast-bg: #f1f5f9;
  --toast-text: #0f172a;
  --danger: #f87171;
  --success: #34d399;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  transition: background-color var(--transition-base), color var(--transition-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--text-inverse);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  min-height: var(--header-height);
  gap: 1rem;
}

@media (min-width: 901px) {
  .site-header__inner {
    flex-wrap: nowrap;
  }

  .main-nav {
    order: 2;
    margin-left: auto;
  }

  .header-actions {
    order: 3;
    margin-left: 0.75rem;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  color: var(--accent);
}

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-muted);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-muted);
  color: var(--text);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--accent-muted);
  border-color: var(--accent);
}

.theme-toggle__icon--dark,
[data-theme="dark"] .theme-toggle__icon--light {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--dark {
  display: inline;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-muted);
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav__link {
  display: block;
  padding: 0.5rem 0.875rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.main-nav__link:hover {
  color: var(--text);
  background: var(--bg-muted);
}

.main-nav__link--active {
  color: var(--accent);
  background: var(--accent-muted);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.5rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav__list {
    flex-direction: column;
    width: 100%;
  }

  .main-nav__link {
    padding: 0.875rem 1rem;
    width: 100%;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn--primary:hover {
  background: var(--accent-hover);
  color: var(--text-inverse);
}

.btn--secondary {
  background: var(--bg-muted);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  background: var(--border);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: var(--bg-muted);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding: 4rem 0 5rem;
  background: var(--hero-gradient);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hero-pattern);
  pointer-events: none;
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

.hero__badge {
  display: inline-block;
  padding: 0.35rem 0.875rem;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-muted);
  border-radius: 999px;
}

.hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  margin: 0 0 2rem;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
  padding: 4rem 0;
}

.section--muted {
  background: var(--bg-muted);
  transition: background-color var(--transition-base);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__lead {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.0625rem;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--accent);
}

.faq-item.is-open {
  box-shadow: var(--shadow-sm);
}

.faq-item__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.125rem 1.25rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--text);
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 1rem;
}

.faq-item__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: transform var(--transition-base);
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(180deg);
}

.faq-item__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-base);
}

.faq-item.is-open .faq-item__panel {
  grid-template-rows: 1fr;
}

.faq-item__content {
  overflow: hidden;
}

.faq-item__answer {
  margin: 0;
  padding: 0 1.25rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ==========================================================================
   Page content (About, Legal, Contact)
   ========================================================================== */

.page-hero {
  padding: 3rem 0 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: var(--hero-gradient);
}

.page-hero__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
}

.page-hero__lead {
  margin: 0 auto;
  max-width: 560px;
  color: var(--text-muted);
  font-size: 1.0625rem;
}

.page-content {
  padding: 3rem 0 4rem;
}

.prose {
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.prose h2 {
  margin: 2.5rem 0 1rem;
  font-size: 1.375rem;
  font-weight: 700;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.prose p {
  margin: 0 0 1.25rem;
  color: var(--text);
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.5rem;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose .updated {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
}

.prose code {
  padding: 0.15em 0.4em;
  font-size: 0.875em;
  font-family: var(--font-mono);
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumb {
  padding: 1rem 0 0;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
}

.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: var(--border);
}

.breadcrumb__item a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.breadcrumb__item--current {
  color: var(--text);
  font-weight: 500;
}

/* ==========================================================================
   SEO guide content (home)
   ========================================================================== */

.seo-guide {
  padding: 4rem 0;
}

.seo-guide .passage-block {
  margin: 1.5rem 0 2rem;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--accent);
  background: var(--bg-muted);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.seo-guide .passage-block cite {
  display: block;
  margin-top: 1rem;
  font-size: 0.8125rem;
  font-style: normal;
  color: var(--text-muted);
}

.seo-guide .steps-list {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.seo-guide .steps-list li {
  margin-bottom: 0.75rem;
}

.seo-guide__cta {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2.5rem;
  max-width: var(--container-max);
  margin-inline: auto;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.contact-info__email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
}

.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group--error input,
.form-group--error textarea {
  border-color: var(--danger);
}

.form-error {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  color: var(--danger);
}

.form-success {
  display: none;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.form-success.is-visible {
  display: block;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  padding: 3rem 0 1.5rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2.5rem;
  }
}

.footer-brand__name {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.footer-brand__desc {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 320px;
}

.footer-nav__title {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.footer-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav__list li {
  margin-bottom: 0.5rem;
}

.footer-nav__link {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.footer-nav__link:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-tagline {
  font-style: italic;
}

/* ==========================================================================
   Toast
   ========================================================================== */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 200;
  padding: 0.875rem 1.5rem;
  background: var(--toast-bg);
  color: var(--toast-text);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}

.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

.toast--error {
  background: var(--danger);
  color: #fff;
}