/**
 * Fresh QR Manual - Editorial Design System
 * A sophisticated, readable documentation interface
 */

@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  /* Brand Colors */
  --fresh-primary: hsl(191, 76%, 50%);
  --fresh-primary-dark: hsl(191, 76%, 40%);
  --fresh-primary-light: hsl(191, 76%, 60%);
  --fresh-accent: hsl(191, 76%, 45%);

  /* Neutrals - Warm undertones */
  --ink: #1a1a2e;
  --ink-light: #374151;
  --ink-muted: #6b7280;
  --paper: #fafafa;
  --paper-warm: #f8f7f4;
  --paper-cool: #f1f5f9;
  --border: #e5e7eb;
  --border-light: #f3f4f6;

  /* Functional */
  --success: #059669;
  --warning: #d97706;
  --error: #dc2626;

  /* Layout */
  --sidebar-width: 300px;
  --content-max: 780px;
  --header-height: 72px;

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
}

/* Layout Structure */
.manual-container {
  min-height: 100vh;
}

/* Sidebar */
.manual-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: #ffffff;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.manual-logo {
  padding: var(--space-6) var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

.manual-logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.manual-logo img {
  height: 28px;
  width: auto;
  transition: transform var(--duration-normal) var(--ease-out);
  filter: brightness(0);
}

.manual-logo a:hover img {
  transform: scale(1.02);
}

.manual-title {
  padding: var(--space-5) var(--space-6);
  background: var(--fresh-primary);
}

.manual-title a {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-lg);
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.02em;
}

/* Language Switcher */
.manual-lang-switcher {
  padding: var(--space-4) var(--space-6);
  display: flex;
  gap: var(--space-2);
  border-bottom: 1px solid var(--border-light);
  background: var(--paper);
}

.manual-lang-switcher a {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-2) var(--space-3);
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
}

.manual-lang-switcher a:hover {
  color: var(--fresh-primary);
  background: var(--paper-cool);
  border-color: var(--border);
}

.manual-lang-switcher a.active {
  color: #ffffff;
  background: #1a1a1a;
  border-color: #1a1a1a;
}

/* Search */
.manual-search {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

.manual-search input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-sm);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  transition: all var(--duration-fast) var(--ease-out);
}

.manual-search input::placeholder {
  color: var(--ink-muted);
}

.manual-search input:focus {
  outline: none;
  border-color: var(--fresh-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Tree Navigation */
#manual-tree {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  overflow-y: auto;
  overflow-x: hidden;
  min-width: 0;
}

/* Vue Tree Component */
.tree-node {
  font-family: "Plus Jakarta Sans", sans-serif;
}

.tree-node-content {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  user-select: none;
}

.tree-node-content:hover {
  background: transparent;
}

.tree-node-content:hover .tree-label {
  color: var(--fresh-primary);
}

.tree-node-content.is-selected {
  background: #f0f0f0;
}

.tree-node-content.is-selected .tree-label {
  color: #000000;
  font-weight: 900;
}

.tree-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  padding: 0;
  margin-right: var(--space-1);
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  flex-shrink: 0;
}

.tree-toggle:hover {
  color: var(--fresh-primary);
}

.tree-toggle:focus {
  outline: none;
}

.toggle-icon {
  font-size: 1rem;
  line-height: 1;
  color: var(--ink-muted);
  transition: transform var(--duration-fast) var(--ease-out);
  display: inline-block;
}

.toggle-icon.is-expanded {
  transform: rotate(90deg);
}

.tree-toggle-placeholder {
  width: 1.25rem;
  height: 1.25rem;
  margin-right: var(--space-1);
  flex-shrink: 0;
}

.tree-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--duration-fast) var(--ease-out);
}

.tree-children {
  /* Children are indented via inline paddingLeft style */
}

/* Unpublished articles */
.tree-node.is-unpublished .tree-label {
  color: var(--ink-muted);
  font-style: italic;
  opacity: 0.7;
}

/* Main Content */
.manual-content {
  margin-left: var(--sidebar-width, 300px);
  min-height: 100vh;
  padding: 3rem 4rem;
  background: var(--paper);
}

.manual-content article {
  max-width: var(--content-max);
  margin: 0 auto;
  background: #ffffff;
  padding: var(--space-12);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  animation: fadeInUp var(--duration-slow) var(--ease-out);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Article Header */
.manual-content h1 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 3px solid var(--fresh-primary);
  position: relative;
}

.manual-content h1::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--fresh-accent);
}

/* Article Body */
.manual-article-body {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--ink-light);
}

.manual-article-body h2 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--ink);
  margin: var(--space-10) 0 var(--space-4);
  letter-spacing: -0.02em;
  position: relative;
  padding-left: var(--space-4);
}

.manual-article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 4px;
  background: var(--fresh-primary);
  border-radius: 2px;
}

.manual-article-body h3 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--ink);
  margin: var(--space-8) 0 var(--space-3);
  letter-spacing: -0.01em;
}

.manual-article-body h4 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--ink);
  margin: var(--space-6) 0 var(--space-2);
}

.manual-article-body p {
  margin-bottom: var(--space-5);
}

.manual-article-body a {
  color: var(--fresh-primary);
  text-decoration: underline;
  text-decoration-color: rgba(37, 99, 235, 0.3);
  text-underline-offset: 3px;
  transition: all var(--duration-fast) var(--ease-out);
}

.manual-article-body a:hover {
  color: var(--fresh-primary-dark);
  text-decoration-color: var(--fresh-primary);
}

.manual-article-body ul,
.manual-article-body ol {
  margin: 0 0 var(--space-5);
  padding-left: var(--space-6);
}

.manual-article-body li {
  margin-bottom: var(--space-2);
}

.manual-article-body li::marker {
  color: var(--fresh-primary);
}

.manual-article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-lg);
}

.manual-article-body code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9em;
  background: var(--paper-cool);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--fresh-primary-dark);
  border: 1px solid var(--border);
}

.manual-article-body pre {
  background: var(--ink);
  color: #e5e7eb;
  padding: var(--space-6);
  border-radius: 12px;
  overflow-x: auto;
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.manual-article-body pre::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 20px 0 0 #f59e0b, 40px 0 0 #22c55e;
}

.manual-article-body pre code {
  background: none;
  padding: 0;
  border: none;
  color: inherit;
  font-size: var(--text-sm);
  display: block;
  padding-top: var(--space-6);
}

.manual-article-body blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-5) var(--space-6);
  border-left: 4px solid var(--fresh-primary);
  background: var(--paper-cool);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--ink-light);
}

.manual-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-base);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.manual-article-body th,
.manual-article-body td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.manual-article-body th {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 600;
  background: var(--paper-cool);
  color: var(--ink);
}

.manual-article-body tr:hover td {
  background: var(--paper-warm);
}

.manual-article-body hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: var(--space-10) 0;
}

/* Footer */
.manual-footer {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-sm);
  color: var(--ink-muted);
  text-align: center;
}

/* 404 Page */
.manual-404 {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--paper);
}

.error-page {
  text-align: center;
  padding: var(--space-12);
  animation: fadeInUp var(--duration-slow) var(--ease-out);
}

.error-page h1 {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 10rem;
  font-weight: 800;
  color: var(--fresh-primary);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-page p {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-xl);
  color: var(--ink-muted);
  margin-bottom: var(--space-8);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-base);
  font-weight: 600;
  padding: var(--space-4) var(--space-8);
  background: var(--fresh-primary);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--duration-normal) var(--ease-out);
}

.btn-back:hover {
  background: var(--fresh-primary-dark);
}

/* Sidebar Contact Section */
.manual-sidebar-contact {
  margin-top: auto;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  background: var(--paper);
}

.manual-sidebar-contact .contact-buttons {
  display: flex;
  gap: var(--space-2);
}

.manual-sidebar-contact .contact-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: 8px;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.manual-sidebar-contact .contact-btn img {
  width: 16px;
  height: 16px;
}

.manual-sidebar-contact .contact-btn-whatsapp {
  background: #25d366;
  color: #ffffff;
}

.manual-sidebar-contact .contact-btn-whatsapp:hover {
  background: #20bd5a;
}

.manual-sidebar-contact .contact-btn-email {
  background: var(--ink);
  color: #ffffff;
}

.manual-sidebar-contact .contact-btn-email:hover {
  background: var(--ink-light);
}

.manual-sidebar-contact .contact-btn-email img {
  filter: brightness(0) invert(1);
}

.manual-sidebar-contact .social-icons {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.manual-sidebar-contact .social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--border-light);
  transition: all var(--duration-fast) var(--ease-out);
}

.manual-sidebar-contact .social-icon:hover {
  background: var(--fresh-primary);
}

.manual-sidebar-contact .social-icon:hover img {
  filter: brightness(0) invert(1);
}

.manual-sidebar-contact .social-icon img {
  width: 16px;
  height: 16px;
  transition: filter var(--duration-fast) var(--ease-out);
}

/* Breadcrumbs */
.manual-breadcrumbs {
  max-width: var(--content-max);
  margin: 0 auto var(--space-4);
}

.manual-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: var(--text-sm);
}

.manual-breadcrumbs li {
  display: flex;
  align-items: center;
  margin: 0;
}

.manual-breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin: 0 var(--space-2);
  color: var(--ink-muted);
}

.manual-breadcrumbs a {
  color: var(--ink-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.manual-breadcrumbs a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.manual-breadcrumbs li[aria-current="page"] span {
  color: var(--ink-light);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--paper);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ink-muted);
}

/* Responsive */
@media (max-width: 1200px) {
  :root {
    --sidebar-width: 280px;
  }

  .manual-content {
    padding: var(--space-8) var(--space-10);
  }

  .manual-content article {
    padding: var(--space-8);
  }
}

@media (max-width: 992px) {
  :root {
    --sidebar-width: 260px;
  }

  .manual-content h1 {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 768px) {
  .manual-sidebar {
    position: relative;
    width: 100%;
    height: auto;
    max-height: none;
  }

  #manual-tree {
    max-height: 300px;
  }

  .manual-sidebar-contact {
    padding: var(--space-3) var(--space-4);
  }

  .manual-sidebar-contact .contact-buttons {
    flex-wrap: wrap;
  }

  .manual-content {
    margin-left: 0;
    padding: var(--space-6);
  }

  .manual-breadcrumbs {
    margin-bottom: var(--space-4);
  }

  .manual-breadcrumbs ol {
    font-size: var(--text-xs);
  }

  .manual-content article {
    padding: var(--space-6);
    border-radius: 12px;
  }

  .manual-content h1 {
    font-size: var(--text-2xl);
  }

  .manual-article-body {
    font-size: var(--text-base);
  }

  .error-page h1 {
    font-size: 6rem;
  }
}