/* ═══════════════════════════════════════════════════════
   BadgeShield Docs — "Badge Matrix" Design System
   ═══════════════════════════════════════════════════════ */

/* ── Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;1,9..40,400&family=Fira+Code:wght@400;500&display=swap');

/* ── Design tokens — light ─────────────────────────────── */
:root {
  --bs-bg:           #ffffff;
  --bs-bg-surface:   #f5f4ff;
  --bs-bg-code:      #f0eeff;
  --bs-purple:       #7c3aed;
  --bs-purple-light: #a78bfa;
  --bs-purple-dark:  #5b21b6;
  --bs-purple-glow:  rgba(124, 58, 237, 0.12);
  --bs-amber:        #d97706;
  --bs-fg:           #1a1030;
  --bs-fg-muted:     #6b5fa0;
  --bs-border:       rgba(124, 58, 237, 0.15);

  /* Override Material tokens */
  --md-primary-fg-color:        #7c3aed;
  --md-primary-fg-color--light: #a78bfa;
  --md-primary-fg-color--dark:  #5b21b6;
  --md-accent-fg-color:         #d97706;
  --md-text-font:  "DM Sans", sans-serif;
  --md-code-font:  "Fira Code", monospace;
}

/* ── Design tokens — dark ──────────────────────────────── */
[data-md-color-scheme="slate"] {
  --bs-bg:           #07071a;
  --bs-bg-surface:   #0e0d24;
  --bs-bg-code:      #12112b;
  --bs-purple:       #8b5cf6;
  --bs-purple-light: #c4b5fd;
  --bs-purple-dark:  #6d28d9;
  --bs-purple-glow:  rgba(139, 92, 246, 0.15);
  --bs-amber:        #f59e0b;
  --bs-fg:           #e8e6ff;
  --bs-fg-muted:     #a39dd6;
  --bs-border:       rgba(139, 92, 246, 0.12);

  --md-default-bg-color:        #07071a;
  --md-default-fg-color:        #e8e6ff;
  --md-default-fg-color--light: #a39dd6;
  --md-code-bg-color:           #12112b;
  --md-primary-fg-color:        #8b5cf6;
  --md-primary-fg-color--dark:  #6d28d9;
}

/* ── Base ──────────────────────────────────────────────── */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bs-bg);
}

/* Noise grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

[data-md-color-scheme="slate"] body::before {
  opacity: 0.03;
}

.md-grid {
  max-width: 1440px;
}

/* ── Typography — headings ─────────────────────────────── */
.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  font-family: "Syne", sans-serif;
  letter-spacing: -0.02em;
}

.md-typeset h1 {
  font-weight: 800;
  font-size: 2rem;
}

.md-typeset h2 {
  font-weight: 700;
  border-bottom: 1px solid var(--bs-border);
  padding-bottom: 0.4rem;
}

/* ── Header ────────────────────────────────────────────── */
.md-header {
  background: linear-gradient(135deg, var(--bs-purple-dark) 0%, var(--bs-purple) 100%);
  border-bottom: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: 0 2px 16px rgba(124, 58, 237, 0.35);
}

[data-md-color-scheme="slate"] .md-header {
  background: linear-gradient(135deg, #3b0764 0%, var(--bs-purple-dark) 100%);
  box-shadow: 0 2px 16px rgba(139, 92, 246, 0.3);
}

.md-header__title {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.md-header__button,
.md-header__topic {
  color: rgba(255, 255, 255, 0.95);
}

.md-header__button:hover {
  color: #fff;
  opacity: 1;
}

/* ── Navigation tabs ───────────────────────────────────── */
.md-tabs {
  background: rgba(0, 0, 0, 0.18);
  border-bottom: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.md-tabs__link {
  color: rgba(255, 255, 255, 0.75);
  opacity: 1;
  font-family: "DM Sans", sans-serif;
  font-weight: 500;
  font-size: 0.85rem;
}

.md-tabs__link--active,
.md-tabs__link:hover {
  color: #fff;
}

.md-tabs__link--active::after {
  background: var(--bs-amber);
  height: 2px;
}

/* ── Search ────────────────────────────────────────────── */
.md-search__form {
  border-radius: 8px;
  border: 1px solid var(--bs-border);
  background: var(--bs-bg-surface);
}

.md-search__form:focus-within {
  border-color: var(--bs-purple);
  box-shadow: 0 0 0 3px var(--bs-purple-glow);
}

/* ── Hero section (home.html override) ─────────────────── */
.bs-hero {
  position: relative;
  text-align: center;
  padding: 5rem 1.5rem 3.5rem;
  overflow: hidden;
}

.bs-hero__orb {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    var(--bs-purple-glow) 0%,
    rgba(124, 58, 237, 0.05) 50%,
    transparent 70%
  );
  pointer-events: none;
  animation: orb-pulse 6s ease-in-out infinite;
}

[data-md-color-scheme="slate"] .bs-hero__orb {
  background: radial-gradient(
    circle at center,
    rgba(139, 92, 246, 0.2) 0%,
    rgba(139, 92, 246, 0.08) 50%,
    transparent 70%
  );
}

@keyframes orb-pulse {
  0%, 100% { transform: translateX(-50%) scale(1);   opacity: 1;   }
  50%       { transform: translateX(-50%) scale(1.1); opacity: 0.7; }
}

.bs-hero__logo {
  position: relative;
  width: 120px;
  height: auto;
  filter: drop-shadow(0 8px 24px var(--bs-purple-glow));
  animation: logo-float 4s ease-in-out infinite;
  margin-bottom: 1.5rem;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0);    }
  50%       { transform: translateY(-8px); }
}

.bs-hero__title {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 0.75rem;
  background: linear-gradient(135deg, var(--bs-purple) 0%, var(--bs-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bs-hero__subtitle {
  font-size: 1.15rem;
  color: var(--bs-fg-muted);
  max-width: 560px;
  margin: 0 auto 0.5rem;
  line-height: 1.7;
  min-height: 2em;
}

.bs-hero__cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--bs-purple);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: cursor-blink 1s step-end infinite;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* CTA buttons */
.bs-hero__ctas {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

/* Stats row */
.bs-stats {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 1.5rem 0 2.5rem;
}

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

.bs-stat__number {
  font-family: "Syne", sans-serif;
  font-weight: 800;
  font-size: 2rem;
  color: var(--bs-purple);
  display: block;
  line-height: 1;
}

.bs-stat__label {
  font-size: 0.78rem;
  color: var(--bs-fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Badge carousel */
.bs-carousel {
  position: relative;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 2rem 0;
}

.bs-carousel__badge {
  position: absolute;
  opacity: 0;
  transform: translateY(8px) scale(0.95);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transform-origin: center;
}

.bs-carousel__badge.bs-carousel__badge--active {
  opacity: 1;
  transform: translateY(0) scale(1.2);
}

/* PyPI shields row */
.bs-shields {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 1rem 0 2rem;
  opacity: 0;
  animation: bs-fade-in 0.6s ease 1.2s forwards;
}

@keyframes bs-fade-in {
  to { opacity: 1; }
}

/* ── Buttons ────────────────────────────────────────────── */
.md-button {
  border-radius: 8px;
  font-family: "DM Sans", sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: none;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  padding: 0.65em 1.5em;
}

.md-button--primary {
  background: linear-gradient(135deg, var(--bs-purple) 0%, var(--bs-purple-dark) 100%);
  border: none;
  box-shadow: 0 4px 20px var(--bs-purple-glow);
  color: #fff;
}

.md-button--primary:hover {
  background: linear-gradient(135deg, var(--bs-purple-light) 0%, var(--bs-purple) 100%);
  box-shadow: 0 8px 28px rgba(124, 58, 237, 0.35);
  transform: translateY(-2px);
  color: #fff;
}

.md-button:not(.md-button--primary) {
  border: 1px solid var(--bs-border);
  color: var(--bs-fg);
  background: transparent;
}

.md-button:not(.md-button--primary):hover {
  border-color: var(--bs-purple);
  color: var(--bs-purple);
  background: var(--bs-purple-glow);
  transform: translateY(-2px);
}

/* ── Feature grid ───────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 2.5rem 0;
}

.feature-item {
  background: var(--bs-bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 1.5rem;
  border: 1px solid var(--bs-border);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--bs-purple-glow);
  border-color: rgba(124, 58, 237, 0.4);
}

[data-md-color-scheme="slate"] .feature-item:hover {
  border-color: rgba(139, 92, 246, 0.4);
}

.feature-item .feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
  background: var(--bs-purple-glow);
  font-size: 1.25rem;
  margin-bottom: 0.875rem;
}

.feature-item h3 {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--bs-fg);
}

.feature-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--bs-fg-muted);
  line-height: 1.65;
}

/* ── Code blocks ─────────────────────────────────────────── */
.highlight {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  background: var(--bs-bg-code);
  border: 1px solid var(--bs-border);
}

/* Terminal title bar */
.md-content .highlight:not(.md-search-result__highlight)::before {
  content: '● ● ●';
  display: block;
  background: var(--bs-bg-surface);
  padding: 0.5rem 0.875rem;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  border-bottom: 1px solid var(--bs-border);
  color: transparent;
  text-shadow: 0 0 0 #ff5f57, 0.9em 0 0 #ffbd2e, 1.8em 0 0 #28ca41;
}

.highlight pre {
  margin: 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--bs-purple);
  background: var(--bs-bg-code);
}

.highlight code {
  font-family: "Fira Code", monospace;
  font-size: 0.84em;
  line-height: 1.7;
}

/* Inline code */
code:not(.highlight code) {
  background: var(--bs-bg-surface);
  border: 1px solid var(--bs-border);
  border-radius: 5px;
  padding: 0.15em 0.45em;
  font-size: 0.875em;
  font-family: "Fira Code", monospace;
}

/* ── Tables ──────────────────────────────────────────────── */
.md-typeset table:not([class]) {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 24px var(--bs-purple-glow);
  border: 1px solid var(--bs-border);
}

.md-typeset table:not([class]) th {
  background: var(--bs-purple);
  color: #fff;
  font-family: "Syne", sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.75rem 1rem;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background: var(--bs-purple-dark);
}

.md-typeset table:not([class]) tr:nth-child(even) td {
  background: var(--bs-bg-surface);
}

.md-typeset table:not([class]) td {
  padding: 0.65rem 1rem;
}

/* ── Admonitions ─────────────────────────────────────────── */
.admonition {
  border-radius: 12px;
  border-left-width: 4px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.admonition-title {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
}

.admonition.note,
.admonition.info,
.admonition.tip {
  border-left-color: var(--bs-purple);
}

.admonition.warning,
.admonition.caution {
  border-left-color: var(--bs-amber);
}

/* ── Tabbed content ──────────────────────────────────────── */
.md-typeset .tabbed-set {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--bs-border);
}

.md-typeset .tabbed-labels {
  background: var(--bs-bg-surface);
  border-bottom: 1px solid var(--bs-border);
}

.md-typeset .tabbed-labels > label {
  font-family: "DM Sans", sans-serif;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--bs-fg-muted);
}

.md-typeset .tabbed-labels > label:hover {
  color: var(--bs-purple);
}

/* ── Footer ──────────────────────────────────────────────── */
.md-footer {
  background: var(--bs-bg-surface);
  border-top: 1px solid var(--bs-border);
}

.md-footer-meta {
  background: var(--bs-bg-surface);
}

.md-social__link svg {
  transition: fill 0.2s ease, transform 0.2s ease;
}

.md-social__link:hover svg {
  fill: var(--bs-purple);
  transform: translateY(-2px);
}

/* ── Sidebar / TOC ───────────────────────────────────────── */
.md-nav__link {
  font-size: 0.78rem;
  transition: color 0.15s ease;
}

.md-nav__link--active {
  color: var(--bs-purple);
  font-weight: 600;
}

/* ── Copy button ─────────────────────────────────────────── */
.md-clipboard {
  border-radius: 5px;
  transition: background 0.15s ease, color 0.15s ease;
}

.md-clipboard:hover {
  background: var(--bs-purple-glow);
  color: var(--bs-purple);
}

/* ── Inline badge labels ─────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2em 0.55em;
  font-size: 0.72em;
  font-weight: 700;
  border-radius: 4px;
  background: var(--bs-purple);
  color: #fff;
  margin-right: 0.4em;
  vertical-align: middle;
  letter-spacing: 0.03em;
  font-family: "DM Sans", sans-serif;
}

.badge--new     { background: #00c853; }
.badge--beta    { background: #f59e0b; }
.badge--changed { background: #2979ff; }

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay by sibling index (applied via JS data-delay attribute) */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }
.reveal[data-delay="7"] { transition-delay: 0.7s; }

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .bs-hero__orb,
  .bs-hero__logo {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .bs-shields {
    opacity: 1;
    animation: none;
  }
}

/* ── Responsive ──────────────────────────────────────────── */
@media screen and (max-width: 60em) {
  .bs-hero {
    padding: 3rem 1rem 2rem;
  }

  .bs-hero__title {
    font-size: 2rem;
  }

  .bs-stats {
    gap: 1.5rem;
  }

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

/* ── Print ───────────────────────────────────────────────── */
@media print {
  .md-header,
  .md-footer,
  .md-sidebar,
  .bs-hero__orb,
  body::before {
    display: none;
  }
}