/* ============================================
   ArcaneUtils - Custom Styles
   Material Design 3 (Material You) Theme
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primary colors */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;

  /* Secondary colors */
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;

  /* Tertiary colors */
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;

  /* Surface colors */
  --md-sys-color-surface: #FEF7FF;
  --md-sys-color-on-surface: #1D1B20;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-surface-container: #F3EDF7;
  --md-sys-color-surface-container-low: #F7F2FA;
  --md-sys-color-surface-container-high: #ECE6F0;

  /* Background */
  --md-sys-color-background: #FEF7FF;
  --md-sys-color-on-background: #1D1B20;

  /* Outline */
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;

  /* Error */
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;

  /* Shadows */
  --md-sys-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-2: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);

  /* Layout */
  --content-max-width: 1200px;
  --nav-drawer-width: 280px;
  --header-height: 64px;
}

/* Dark theme support */
@media (prefers-color-scheme: dark) {
  :root {
    --md-sys-color-primary: #D0BCFF;
    --md-sys-color-on-primary: #381E72;
    --md-sys-color-primary-container: #4F378B;
    --md-sys-color-on-primary-container: #EADDFF;

    --md-sys-color-secondary: #CCC2DC;
    --md-sys-color-on-secondary: #332D41;
    --md-sys-color-secondary-container: #4A4458;
    --md-sys-color-on-secondary-container: #E8DEF8;

    --md-sys-color-surface: #141218;
    --md-sys-color-on-surface: #E6E0E9;
    --md-sys-color-surface-variant: #49454F;
    --md-sys-color-on-surface-variant: #CAC4D0;
    --md-sys-color-surface-container: #211F26;
    --md-sys-color-surface-container-low: #1D1B20;
    --md-sys-color-surface-container-high: #2B2930;

    --md-sys-color-background: #141218;
    --md-sys-color-on-background: #E6E0E9;

    --md-sys-color-outline: #938F99;
    --md-sys-color-outline-variant: #49454F;
  }
}

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

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

body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 1rem;
  font-weight: 400;
  color: var(--md-sys-color-on-surface);
}

h1 {
  font-size: 2.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  line-height: 1.25;
}

h3 {
  font-size: 1.5rem;
  line-height: 1.3;
}

h4 {
  font-size: 1.25rem;
  line-height: 1.35;
}

p {
  margin: 0 0 1rem;
  color: var(--md-sys-color-on-surface-variant);
}

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---------- Layout ---------- */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: 24px;
  margin-top: var(--header-height);
  max-width: 100%;
}

.container {
  max-width: var(--content-max-width);
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 1025px) {
  .main-content {
    margin-left: var(--nav-drawer-width);
  }
}

/* ---------- Header / Top App Bar ---------- */
.top-app-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--md-sys-color-surface);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 16px;
  z-index: 100;
  box-shadow: var(--md-sys-elevation-2);
}

.top-app-bar .logo {
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-app-bar .logo a {
  color: inherit;
  text-decoration: none;
}

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-surface);
  transition: background-color 0.2s;
}

.menu-toggle:hover {
  background-color: var(--md-sys-color-surface-variant);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

@media (min-width: 1025px) {
  .menu-toggle {
    display: none;
  }

  .top-app-bar {
    left: var(--nav-drawer-width);
  }
}

/* ---------- Navigation Drawer ---------- */
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--nav-drawer-width);
  height: 100vh;
  background-color: var(--md-sys-color-surface-container-low);
  z-index: 200;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.nav-drawer.open {
  transform: translateX(0);
}

.nav-drawer-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.nav-drawer-header h2 {
  font-size: 1.25rem;
  margin: 0;
  color: var(--md-sys-color-on-surface);
}

.nav-drawer-content {
  flex: 1;
  padding: 8px 0;
  overflow-y: auto;
}

.nav-drawer-scrim {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.32);
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.nav-drawer-scrim.visible {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 1025px) {
  .nav-drawer {
    transform: translateX(0);
  }

  .nav-drawer-scrim {
    display: none;
  }
}

/* ---------- Navigation Menu ---------- */
.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-category {
  margin-bottom: 4px;
}

.nav-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.1px;
  color: var(--md-sys-color-on-surface-variant);
  border-radius: 0 28px 28px 0;
  margin-right: 12px;
  user-select: none;
  transition: background-color 0.2s;
}

.nav-category-header:hover {
  background-color: var(--md-sys-color-surface-variant);
}

.nav-category-header .expand-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.2s;
}

.nav-category.expanded .expand-icon {
  transform: rotate(180deg);
}

.nav-category-grid {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-category.expanded .nav-category-grid {
  grid-template-rows: 1fr;
}

.nav-category-inner {
  overflow: hidden;
}

.nav-category-items {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: block;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px 12px 40px;
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  border-radius: 0 28px 28px 0;
  margin-right: 12px;
  font-size: 0.875rem;
  transition: background-color 0.2s;
}

.nav-item a:hover {
  background-color: var(--md-sys-color-surface-variant);
  text-decoration: none;
}

.nav-item a.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 500;
}

.nav-item-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Cards / Tool Cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.card {
  background-color: var(--md-sys-color-surface-container);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--md-sys-elevation-1);
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: var(--md-sys-elevation-2);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--md-sys-color-on-surface);
}

.card-description {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
}

.card-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ---------- Tool-specific Styles ---------- */
.tool-section {
  background-color: var(--md-sys-color-surface-container);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.tool-section h2 {
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--md-sys-color-on-surface-variant);
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  /* Increased gap slightly for better separation */
  cursor: pointer;
  padding: 4px 0;
  /* Add slight padding for touch target */
}

/* Ensure select elements have proper dark background for readability */
select {
  background: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: 4px;
  padding: 8px;
  /* Ensure options also inherit background (fixes Windows high contrast/dark mode issues) */
}

select option {
  background: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
}

#qrcode img,
#qrcode canvas,
#qrcode svg {
  max-width: 100%;
  height: auto;
  display: block;
  /* Removes potential whitespace */
}

.checkbox-item md-checkbox {
  flex-shrink: 0;
  /* Prevent checkbox from shrinking */
  margin: 0;
  /* Align strictly */
}

.checkbox-item span {
  line-height: normal;
  /* Reset line height */
  padding-top: 2px;
  /* Micro-adjustment for visual center relative to checkbox */
  user-select: none;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

.slider-value {
  min-width: 40px;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-sys-color-primary);
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--md-sys-color-surface-container-high);
  border-radius: 12px;
  padding: 12px 16px;
}

.result-item code {
  flex: 1;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9375rem;
  color: var(--md-sys-color-on-surface);
  word-break: break-all;
}

/* ---------- Footer ---------- */
.site-footer {
  background-color: var(--md-sys-color-surface-container);
  padding: 24px;
  margin-top: auto;
  text-align: center;
  border-top: 1px solid var(--md-sys-color-outline-variant);
}

@media (min-width: 1025px) {
  .site-footer {
    margin-left: var(--nav-drawer-width);
  }
}

.site-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
}

/* ---------- Utility Classes ---------- */
.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;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 {
  margin-top: 8px;
}

.mt-2 {
  margin-top: 16px;
}

.mt-3 {
  margin-top: 24px;
}

.mb-1 {
  margin-bottom: 8px;
}

.mb-2 {
  margin-bottom: 16px;
}

.mb-3 {
  margin-bottom: 24px;
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 {
  gap: 8px;
}

.gap-2 {
  gap: 16px;
}

.gap-3 {
  gap: 24px;
}

/* ---------- Hero Section ---------- */
.hero {
  text-align: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, var(--md-sys-color-primary-container) 0%, var(--md-sys-color-surface) 100%);
  border-radius: 24px;
  margin-bottom: 32px;
}

.hero h1 {
  margin-bottom: 16px;
  color: var(--md-sys-color-on-primary-container);
}

.hero p {
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
  color: var(--md-sys-color-on-surface-variant);
}

/* ---------- Category Section ---------- */
.category-section {
  margin-bottom: 48px;
}

.category-section h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  margin-bottom: 24px;
}

.category-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--md-sys-color-secondary-container);
  border-radius: 8px;
  color: var(--md-sys-color-on-secondary-container);
}

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}

/* ---------- Toast / Snackbar ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--md-sys-color-inverse-surface, #322F35);
  color: var(--md-sys-color-inverse-on-surface, #F4EFF4);
  padding: 14px 24px;
  border-radius: 8px;
  font-size: 0.875rem;
  box-shadow: var(--md-sys-elevation-3);
  z-index: 1000;
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
}

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