/**
 * 1. CSS Reset / Normalize
 */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

/**
 * 2. Design tokens (custom properties)
 */

:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #1c2128;
  --color-bg-card: #1c2128;
  --color-bg-card-hover: #22272e;
  --color-border: #30363d;
  --color-border-subtle: #21262d;
  --color-text-primary: #e6edf3;
  --color-text-secondary: #8b949e;
  --color-text-muted: #6e7681;
  --color-accent: #00adef;
  --color-accent-hover: #33c1f5;
  --color-accent-subtle: rgba(0, 173, 239, 0.1);
  --color-success: #3fb950;
  --color-warning: #d29922;
  --color-error: #f85149;
  --color-overlay: rgba(0, 0, 0, 0.5);

  /* Platform Colors */
  --color-instagram: #e4405f;
  --color-youtube: #ff0000;
  --color-facebook: #1877f2;
  --color-x: #000000;
  --color-linkedin: #0a66c2;
  --color-tiktok: #000000;
  --color-github: #ffffff;
  --color-pinterest: #bd081c;
  --color-telegram: #26a5e4;
  --color-whatsapp: #25d366;
  --color-discord: #5865f2;
  --color-twitch: #9146ff;
  --color-spotify: #1db954;

  /* Typography */
  --font-family-base:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-family-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.25rem;
  --line-height-tight: 1.25;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 5rem;
  --space-5xl: 6rem;

  /* Borders */
  --border-radius: 0.25rem;
  --border-width: 1px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(88, 166, 255, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index scale */
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;

  /* Layout */
  --container-max-width: 75rem;
  --container-padding: var(--space-lg);
  --header-height: 4rem;
}

/**
 * 3. Base / element styles
 */

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

body.menu-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-lg);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-tertiary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius);
  color: var(--color-accent);
}

/**
 * 4. Layout
 */

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

.section {
  padding: var(--space-5xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-description {
  max-width: 40rem;
  margin: 0 auto;
  font-size: var(--font-size-md);
}

.section--alt {
  background-color: var(--color-bg-secondary);
}

/**
 * 5. Components
 */

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-modal);
  background-color: var(--color-x);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  height: var(--header-height);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  font-weight: var(--font-weight-regular);
}

.header-brand img {
  width: 1.75rem;
  height: 1.75rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.header-nav-list {
  display: flex;
  gap: var(--space-lg);
}

.header-nav-link {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  transition: opacity var(--transition-fast);
  padding: var(--space-xs) 0;
  text-transform: uppercase;
}

.header-nav-link:hover,
.header-nav-link:focus {
  opacity: 0.75;
}

.header-github-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.header-github-link:hover {
  background-color: var(--color-bg-card-hover);
  border-color: var(--color-text-muted);
}

.header-github-link svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--color-text-primary);
}

.header-lang-switch {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.header-lang-switch:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-muted);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.3rem;
  padding: var(--space-sm);
}

.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background-color: var(--color-text-primary);
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.menu-toggle.is-active span:nth-child(1) {
  transform: translateY(0.4rem) rotate(45deg);
}

.menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active span:nth-child(3) {
  transform: translateY(-0.4rem) rotate(-45deg);
}

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

.hero {
  padding: var(--space-5xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 40rem;
  height: 40rem;
  background: radial-gradient(
    circle,
    rgba(88, 166, 255, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero-version {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
  border: 1px solid rgba(88, 166, 255, 0.2);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-xl);
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-lg);
  position: relative;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  max-width: 42rem;
  margin: 0 auto var(--space-2xl);
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.hero-meta-item svg {
  width: 1rem;
  height: 1rem;
  fill: var(--color-text-muted);
}

.hero-meta-value {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

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

.btn svg {
  width: 1.125rem;
  height: 1.125rem;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #0d1117;
}

.btn-primary svg {
  fill: #0d1117;
}

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

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

.btn-secondary svg {
  fill: var(--color-text-primary);
}

.btn-secondary:hover {
  background-color: var(--color-bg-card-hover);
  border-color: var(--color-text-muted);
}

/* ---- Feature Cards ---- */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.feature-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--color-accent-subtle);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
}

.feature-card-icon svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--color-accent);
}

.feature-card-title {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-sm);
}

.feature-card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ---- Design Layouts ---- */

.designs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.design-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.design-card:hover {
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.design-card-preview {
  height: 12rem;
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.design-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
}

.design-card-name {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.design-card-description {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.design-card-positions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.position-tag {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius);
}

/* ---- Design previews ---- */

.preview-orbit {
  position: relative;
  width: 100%;
  height: 100%;
}

.preview-orbit-trigger {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--border-radius);
  background-color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-orbit-trigger svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: #0d1117;
}

.preview-orbit-icon {
  position: absolute;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-orbit-icon svg {
  width: 0.875rem;
  height: 0.875rem;
  fill: #ffffff;
}

.preview-orbit-icon:nth-child(2) {
  bottom: 5.5rem;
  left: var(--space-lg);
  background-color: var(--color-instagram);
}

.preview-orbit-icon:nth-child(3) {
  bottom: 4.5rem;
  left: 4rem;
  background-color: var(--color-youtube);
}

.preview-orbit-icon:nth-child(4) {
  bottom: 2.5rem;
  left: 5.5rem;
  background-color: var(--color-facebook);
}

.preview-ribbon {
  position: relative;
  width: 100%;
  height: 100%;
}

.preview-ribbon-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3rem;
  background-color: var(--color-bg-tertiary);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.preview-ribbon-icon {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-ribbon-icon svg {
  width: 0.875rem;
  height: 0.875rem;
  fill: #ffffff;
}

.preview-pillar {
  position: relative;
  width: 100%;
  height: 100%;
}

.preview-pillar-bar {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3rem;
  background-color: var(--color-bg-tertiary);
  border-left: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.preview-pillar-icon {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-pillar-icon svg {
  width: 0.875rem;
  height: 0.875rem;
  fill: #ffffff;
}

/* ---- Platforms ---- */

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
  gap: var(--space-md);
}

.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.platform-item:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.platform-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius);
  transition: transform var(--transition-fast);
}

.platform-item:hover .platform-icon {
  transform: scale(1.1);
}

.platform-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: #ffffff;
}

.platform-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-align: center;
}

/* ---- Admin Interface ---- */

.admin-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.admin-tab {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.admin-tab:hover {
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-glow);
}

.admin-tab-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.admin-tab-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background-color: var(--color-accent-subtle);
  border-radius: var(--border-radius);
}

.admin-tab-icon svg {
  width: 1rem;
  height: 1rem;
  fill: var(--color-accent);
}

.admin-tab-name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.admin-tab-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.admin-tab-features {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.admin-tab-feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.admin-tab-feature svg {
  width: 0.875rem;
  height: 0.875rem;
  fill: var(--color-success);
  flex-shrink: 0;
}

/* ---- Technical Details ---- */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.tech-block {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
}

.tech-block-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.tech-block-title svg {
  width: 1.125rem;
  height: 1.125rem;
  fill: var(--color-accent);
}

.tech-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tech-list-item {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding-left: var(--space-md);
  position: relative;
}

.tech-list-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.375rem;
  height: 0.375rem;
  background-color: var(--color-accent);
  border-radius: var(--border-radius);
}

/* ---- File Structure ---- */

.file-tree {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-top: var(--space-lg);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  overflow-x: auto;
}

.file-tree-entry {
  white-space: nowrap;
}

.file-tree-dir {
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
}

.file-tree-comment {
  color: var(--color-text-muted);
}

/* ---- Language Stats ---- */

.lang-stats {
  margin-top: var(--space-2xl);
}

.lang-bar {
  display: flex;
  height: 0.5rem;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.lang-bar-segment {
  height: 100%;
  transition: opacity var(--transition-fast);
}

.lang-bar-segment:hover {
  opacity: 0.8;
}

.lang-legend {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}

.lang-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.lang-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: var(--border-radius);
}

/* ---- Requirements ---- */

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 50rem;
  margin: 0 auto;
}

.requirement-card {
  text-align: center;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
}

.requirement-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background-color: var(--color-accent-subtle);
  border-radius: var(--border-radius);
  margin: 0 auto var(--space-md);
}

.requirement-icon svg {
  width: 2.5rem;
  height: 2.5rem;
  fill: var(--color-accent);
}

.requirement-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.requirement-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

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

.site-footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-author {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-author-link {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

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

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-text-primary);
}
/**
 * Orbit Live Demo (Telkari Design 1)
 */

.telkari-container.telkari-design-1 {
  position: fixed;
  z-index: var(--z-toast);
}

.telkari-design-1.telkari-position-bottom-right {
  bottom: 0;
  right: 0;
}

.telkari-design-1 .telkari-trigger {
  width: calc(var(--telkari-icon-size, 2.5rem) * 1.5);
  height: calc(var(--telkari-icon-size, 2.5rem) * 1.5);
  background-color: #1e293b;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  position: relative;
  z-index: 2;
  padding: 0;
  transition: opacity 0.2s;
}

.telkari-design-1 .telkari-trigger:hover {
  opacity: 0.85;
}

.telkari-design-1 .telkari-trigger-icon {
  width: 40%;
  height: 40%;
  transition: transform 0.3s;
  position: absolute;
  left: 40%;
  top: 40%;
}

.telkari-design-1.telkari-open .telkari-trigger-icon {
  transform: rotate(45deg);
}

.telkari-design-1.telkari-position-bottom-right .telkari-trigger {
  border-radius: 100% 0 0 0;
  margin-left: auto;
}

.telkari-design-1 .telkari-icons-wrapper {
  position: absolute;
  bottom: 0;
  width: 0;
  height: 0;
}

.telkari-design-1.telkari-position-bottom-right .telkari-icons-wrapper {
  right: 0;
}

.telkari-design-1 .telkari-icon-link {
  --telkari-arc-radius: calc(
    (var(--telkari-icon-size, 2.5rem) + var(--telkari-icon-spacing, 0.5rem)) *
      var(--telkari-item-count) * 0.7 + var(--telkari-icon-size, 2.5rem)
  );
  --telkari-angle-pad: calc(1rem + var(--telkari-icon-size, 2.5rem) / 2);
  --telkari-angle-min: calc(
    atan2(var(--telkari-angle-pad), var(--telkari-arc-radius))
  );
  --telkari-angle-max: calc(90deg - var(--telkari-angle-min));
  --telkari-angle: calc(
    var(--telkari-angle-min) +
      (var(--telkari-angle-max) - var(--telkari-angle-min)) *
      var(--telkari-item-index) / max(var(--telkari-item-count) - 1, 1)
  );
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--telkari-icon-size, 2.5rem);
  height: var(--telkari-icon-size, 2.5rem);
  background-color: var(--telkari-bg, #1e293b);
  color: #ffffff;
  text-decoration: none;
  opacity: 0;
  transform: scale(0.2);
  transition: opacity 0.35s ease, transform 0.35s ease, box-shadow 0.2s ease;
  transition-delay: calc(
    (var(--telkari-item-count) - 1 - var(--telkari-item-index)) * 0.045s
  );
}

.telkari-design-1.telkari-open .telkari-icon-link:hover {
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.35s ease;
  transition-delay: 0s;
}

.telkari-design-1.telkari-position-bottom-right .telkari-icon-link {
  bottom: 0;
  right: 0;
}

.telkari-design-1.telkari-position-bottom-right.telkari-open .telkari-icon-link {
  opacity: 1;
  transform: translate(
      calc(
        -1 * cos(var(--telkari-angle)) * var(--telkari-arc-radius) +
          var(--telkari-icon-size, 2.5rem) / 2
      ),
      calc(
        -1 * sin(var(--telkari-angle)) * var(--telkari-arc-radius) +
          var(--telkari-icon-size, 2.5rem) / 2
      )
    )
    scale(1);
}

.telkari-design-1.telkari-position-bottom-right.telkari-open
  .telkari-icon-link:hover {
  transform: translate(
      calc(
        -1 * cos(var(--telkari-angle)) * var(--telkari-arc-radius) +
          var(--telkari-icon-size, 2.5rem) / 2
      ),
      calc(
        -1 * sin(var(--telkari-angle)) * var(--telkari-arc-radius) +
          var(--telkari-icon-size, 2.5rem) / 2
      )
    )
    scale(1.15);
}

.telkari-design-1.telkari-open .telkari-icon-link {
  transition-delay: calc(var(--telkari-item-index) * 0.045s);
}

.telkari-design-1.telkari-style-rounded .telkari-icon-link {
  border-radius: 50%;
}

.telkari-design-1 .telkari-icon {
  width: 55%;
  height: 55%;
  fill: currentColor;
}

.telkari-design-1.telkari-has-tooltips .telkari-icon-link {
  position: absolute;
}

.telkari-design-1.telkari-has-tooltips .telkari-icon-link::after {
  content: attr(title);
  position: absolute;
  white-space: nowrap;
  padding: 0.25rem 0.5rem;
  background-color: #1e293b;
  color: #ffffff;
  font-size: 0.75rem;
  line-height: 1.4;
  border-radius: 0.125rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  top: 50%;
  transform: translateY(-50%);
}

.telkari-design-1.telkari-has-tooltips .telkari-icon-link:hover::after {
  opacity: 1;
}

.telkari-design-1.telkari-position-bottom-right.telkari-has-tooltips
  .telkari-icon-link::after {
  right: calc(100% + 0.5rem);
}

/**
 * 6. Utilities
 */

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

.fade-in {
  opacity: 0;
  transform: translateY(1.5rem);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/**
 * 7. Media queries
 */

@media (max-width: 62rem) {
  h1 {
    font-size: var(--font-size-3xl);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .features-grid,
  .designs-grid,
  .admin-tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 48rem) {
  :root {
    --container-padding: var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .menu-toggle {
    display: flex;
  }

  .header-nav {
    display: flex;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    z-index: var(--z-overlay);
    background-color: var(--color-bg-primary);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-2xl) var(--space-xl);
    gap: var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    border-top: 1px solid var(--color-border);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .header-github-link {
    justify-content: center;
    padding: var(--space-md);
    font-size: var(--font-size-md);
  }

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

  .header-nav-list {
    flex-direction: column;
    gap: var(--space-md);
  }

  .header-nav-link {
    font-size: var(--font-size-lg);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-subtle);
  }

  .features-grid,
  .designs-grid,
  .admin-tabs {
    grid-template-columns: 1fr;
  }

  .requirements-grid {
    grid-template-columns: 1fr;
  }

  .hero-meta {
    gap: var(--space-lg);
  }
}

@media (max-width: 36rem) {
  h1 {
    font-size: var(--font-size-2xl);
  }

  h2 {
    font-size: var(--font-size-xl);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-md);
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .platforms-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}