/* ==========================================================================
   Cello Framework - Custom Theme Styles
   Material for MkDocs - Orange / Black Theme (Light & Dark)
   ========================================================================== */

/* ==========================================================================
   1. LIGHT MODE - Custom Color Scheme (Default)
   ========================================================================== */

[data-md-color-scheme="default"] {
  --md-primary-fg-color:         #1A1A1A;
  --md-primary-fg-color--light:  #424242;
  --md-primary-fg-color--dark:   #000000;
  --md-primary-bg-color:         #FFFFFF;
  --md-primary-bg-color--light:  #FAFAFA;
  --md-accent-fg-color:            #E65100;
  --md-accent-fg-color--transparent: rgba(230, 81, 0, 0.12);
  --md-default-bg-color:           #FAFAFA;
  --md-default-fg-color:           #1A1A1A;
  --md-default-fg-color--light:    #424242;
  --md-default-fg-color--lighter:  #616161;
  --md-default-fg-color--lightest: #E0E0E0;
  --md-code-bg-color:  #F5F5F5;
  --md-code-fg-color:  #1A1A1A;
  --md-typeset-a-color: #BF360C;
  --md-typeset-color: #1A1A1A;
  --md-footer-bg-color:         #1A1A1A;
  --md-footer-bg-color--dark:   #121212;
  --md-footer-fg-color:         rgba(255, 255, 255, 0.9);
  --md-footer-fg-color--light:  rgba(255, 255, 255, 0.7);
  --md-footer-fg-color--lighter: rgba(255, 255, 255, 0.5);
  --cello-orange:        #E65100;
  --cello-orange-light:  #FF6D00;
  --cello-orange-dark:   #BF360C;
  --cello-accent:        #FF9100;
  --cello-black:         #1A1A1A;
  --cello-black-soft:    #2D2D2D;
  --cello-surface:       #FFFFFF;
  --cello-bg:            #FAFAFA;
  --cello-text:          #1A1A1A;
  --cello-text-secondary: #424242;
  --cello-border:        #E0E0E0;
  --cello-glow:          rgba(230, 81, 0, 0.35);
  --cello-shadow:        rgba(230, 81, 0, 0.15);
}

/* ==========================================================================
   2. DARK MODE - Orange-Consistent Slate Scheme
   ========================================================================== */

[data-md-color-scheme="slate"] {
  --md-primary-fg-color:         #FF8F00;
  --md-primary-fg-color--light:  #FFA726;
  --md-primary-fg-color--dark:   #E65100;
  --md-primary-bg-color:         #1e1e1e;
  --md-primary-bg-color--light:  #252525;
  --md-accent-fg-color:            #FF8F00;
  --md-accent-fg-color--transparent: rgba(255, 143, 0, 0.12);
  --md-default-bg-color:           #121212;
  --md-default-fg-color:           #E0E0E0;
  --md-default-fg-color--light:    #BDBDBD;
  --md-default-fg-color--lighter:  #9E9E9E;
  --md-default-fg-color--lightest: #424242;
  --md-code-bg-color:  #1a1a2e;
  --md-code-fg-color:  #E0E0E0;
  --md-typeset-a-color: #FF8F00;
  --md-typeset-color:   #E0E0E0;
  --md-footer-bg-color:         #0D0D0D;
  --md-footer-bg-color--dark:   #000000;
  --md-footer-fg-color:         rgba(255, 255, 255, 0.9);
  --md-footer-fg-color--light:  rgba(255, 255, 255, 0.7);
  --md-footer-fg-color--lighter: rgba(255, 255, 255, 0.5);
  --cello-orange:        #FF8F00;
  --cello-orange-light:  #FFA726;
  --cello-orange-dark:   #E65100;
  --cello-accent:        #FFB74D;
  --cello-black:         #121212;
  --cello-black-soft:    #1e1e1e;
  --cello-surface:       #1e1e1e;
  --cello-bg:            #121212;
  --cello-text:          #E0E0E0;
  --cello-text-secondary: #BDBDBD;
  --cello-border:        #333333;
  --cello-glow:          rgba(255, 143, 0, 0.3);
  --cello-shadow:        rgba(255, 143, 0, 0.12);
}

/* ==========================================================================
   3. FONT SIZE CONSTRAINTS - Professional documentation
   ========================================================================== */

.md-typeset h1 { font-size: 18px !important; line-height: 1.3; }
.md-typeset h2 { font-size: 16px !important; line-height: 1.3; }
.md-typeset h3 { font-size: 15px !important; line-height: 1.3; }
.md-typeset h4, .md-typeset h5, .md-typeset h6 { font-size: 14px !important; line-height: 1.4; }
.md-typeset { font-size: 14px; line-height: 1.6; }
.md-typeset code { font-size: 13px; }
.md-typeset small, .md-typeset .md-footer-meta { font-size: 12px; }

/* ==========================================================================
   4. HEADER
   ========================================================================== */

[data-md-color-scheme="default"] .md-header {
  background: linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 100%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}
[data-md-color-scheme="slate"] .md-header {
  background: linear-gradient(135deg, #0D0D0D 0%, #1A1A1A 100%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

[data-md-color-scheme="default"] .md-header__button,
[data-md-color-scheme="default"] .md-header__topic,
[data-md-color-scheme="default"] .md-header-nav__button,
[data-md-color-scheme="default"] .md-header__title,
[data-md-color-scheme="slate"] .md-header__button,
[data-md-color-scheme="slate"] .md-header__topic,
[data-md-color-scheme="slate"] .md-header-nav__button,
[data-md-color-scheme="slate"] .md-header__title {
  color: #FFFFFF;
}

[data-md-color-scheme="default"] .md-header__button:hover,
[data-md-color-scheme="slate"] .md-header__button:hover {
  color: var(--cello-accent);
}

/* Search bar */
.md-search__input {
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}
.md-search__input::placeholder { color: rgba(255, 255, 255, 0.5); }
.md-search__input:focus {
  background-color: rgba(255, 255, 255, 0.12);
  border-bottom: 2px solid var(--cello-accent);
}

/* ==========================================================================
   5. NAVIGATION TABS
   ========================================================================== */

[data-md-color-scheme="default"] .md-tabs {
  background: #1A1A1A;
  border-bottom: 1px solid rgba(255, 145, 0, 0.15);
}
[data-md-color-scheme="slate"] .md-tabs {
  background: #0D0D0D;
  border-bottom: 1px solid rgba(255, 143, 0, 0.15);
}

.md-tabs__link {
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  transition: color 0.3s ease, opacity 0.3s ease;
}
.md-tabs__link:hover { color: var(--cello-accent); opacity: 1; }
.md-tabs__link--active {
  color: #FFFFFF;
  font-weight: 700;
  border-bottom: 2px solid var(--cello-orange-light);
}

/* ==========================================================================
   6. ANNOUNCEMENT BAR
   ========================================================================== */

.md-banner {
  background: linear-gradient(90deg, #E65100 0%, #FF6D00 50%, #FF9100 100%);
  color: #000000;
  font-weight: 600;
}
.md-banner a { color: #1A1A1A; text-decoration: underline; }
.md-banner__button { color: #1A1A1A; }

.cello-announce { font-weight: 600; color: #1A1A1A; }
.cello-announce-link { color: #1A1A1A; margin-left: 8px; text-decoration: underline; font-weight: 700; }

/* ==========================================================================
   7. SIDEBAR / NAVIGATION / TOC
   ========================================================================== */

[data-md-color-scheme="default"] .md-nav__link--active { color: #E65100 !important; font-weight: 700; }
[data-md-color-scheme="default"] .md-nav__link:hover { color: #FF6D00; }
[data-md-color-scheme="default"] .md-nav__link:focus { color: #E65100; }
[data-md-color-scheme="default"] .md-nav--secondary .md-nav__link--active {
  color: #E65100 !important; font-weight: 600;
  border-left: 2px solid #E65100; padding-left: 0.6rem;
}

[data-md-color-scheme="slate"] .md-nav__link--active { color: #FF8F00 !important; font-weight: 700; }
[data-md-color-scheme="slate"] .md-nav__link:hover { color: #FFA726; }
[data-md-color-scheme="slate"] .md-nav__link:focus { color: #FF8F00; }
[data-md-color-scheme="slate"] .md-nav--secondary .md-nav__link--active {
  color: #FF8F00 !important; font-weight: 600;
  border-left: 2px solid #FF8F00; padding-left: 0.6rem;
}

/* ==========================================================================
   8. FOOTER
   ========================================================================== */

[data-md-color-scheme="default"] .md-footer { background-color: #1A1A1A; }
[data-md-color-scheme="default"] .md-footer-meta { background-color: #121212; }
[data-md-color-scheme="slate"] .md-footer { background-color: #0D0D0D; }
[data-md-color-scheme="slate"] .md-footer-meta { background-color: #000000; }

.md-footer a { color: var(--cello-accent); transition: color 0.3s ease; }
.md-footer a:hover { color: var(--cello-orange-light); }
.md-footer__link { color: rgba(255, 255, 255, 0.9); }
.md-footer__title { color: rgba(255, 255, 255, 0.5); }

/* ==========================================================================
   9. BUTTONS
   ========================================================================== */

/* Light - Primary */
[data-md-color-scheme="default"] .md-typeset .md-button--primary {
  background: #1A1A1A; border: 2px solid #1A1A1A; color: #FF9100;
  font-weight: 700; padding: 0.7em 1.8em; border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); transition: all 0.3s ease;
}
[data-md-color-scheme="default"] .md-typeset .md-button--primary:hover {
  background: #2D2D2D; border-color: #E65100; color: #FF9100;
  box-shadow: 0 4px 16px rgba(230, 81, 0, 0.25); transform: translateY(-1px);
}
/* Light - Secondary */
[data-md-color-scheme="default"] .md-typeset .md-button:not(.md-button--primary) {
  border: 2px solid #424242; color: #1A1A1A; font-weight: 600;
  padding: 0.65em 1.8em; border-radius: 6px; background: transparent; transition: all 0.3s ease;
}
[data-md-color-scheme="default"] .md-typeset .md-button:not(.md-button--primary):hover {
  border-color: #1A1A1A; color: #1A1A1A;
  background: rgba(0, 0, 0, 0.04); box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Dark - Primary */
[data-md-color-scheme="slate"] .md-typeset .md-button--primary {
  background: #FF8F00; border: 2px solid #FF8F00; color: #000000;
  font-weight: 700; padding: 0.7em 1.8em; border-radius: 6px;
  box-shadow: 0 2px 8px rgba(255, 143, 0, 0.2); transition: all 0.3s ease;
}
[data-md-color-scheme="slate"] .md-typeset .md-button--primary:hover {
  background: #FFA726; border-color: #FFA726;
  box-shadow: 0 4px 16px rgba(255, 143, 0, 0.35); transform: translateY(-1px);
}
/* Dark - Secondary */
[data-md-color-scheme="slate"] .md-typeset .md-button:not(.md-button--primary) {
  border: 2px solid #555; color: #E0E0E0; font-weight: 600;
  padding: 0.65em 1.8em; border-radius: 6px; background: transparent; transition: all 0.3s ease;
}
[data-md-color-scheme="slate"] .md-typeset .md-button:not(.md-button--primary):hover {
  border-color: #FF8F00; color: #FF8F00;
  background: rgba(255, 143, 0, 0.06); box-shadow: 0 2px 8px rgba(255, 143, 0, 0.15);
}

/* ==========================================================================
   10. CARDS
   ========================================================================== */

[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li {
  background: #FFFFFF; border: 1px solid #E0E0E0; border-left: 3px solid #E65100;
  border-radius: 8px; padding: 1rem 1.2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(230, 81, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
  border-left-color: #FF6D00;
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(255, 109, 0, 0.03) 100%);
}

[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li {
  background: #1e1e1e; border: 1px solid #333; border-left: 3px solid #FF8F00;
  border-radius: 8px; padding: 1rem 1.2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255, 143, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.3);
  border-left-color: #FFA726;
  background: linear-gradient(135deg, #1e1e1e 0%, rgba(255, 143, 0, 0.04) 100%);
}

/* Card headings */
[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li h2,
[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li h3 { color: #1A1A1A; }
[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li h2,
[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li h3 { color: #FFA726; }

/* ==========================================================================
   11. CODE BLOCKS
   ========================================================================== */

/* Light - Fenced */
[data-md-color-scheme="default"] .md-typeset pre > code {
  background-color: #F5F5F5; color: #1A1A1A;
  border-radius: 8px; border-left: 3px solid #E65100; font-size: 0.85em;
}
[data-md-color-scheme="default"] .md-typeset pre { border-radius: 8px; overflow: hidden; }
/* Light - Inline */
[data-md-color-scheme="default"] .md-typeset code {
  background-color: rgba(230, 81, 0, 0.08); color: #BF360C;
  border-radius: 4px; padding: 0.1em 0.35em; font-size: 0.88em;
  border: 1px solid rgba(230, 81, 0, 0.12);
}
/* Light - Reset inside fenced */
[data-md-color-scheme="default"] .md-typeset pre > code,
[data-md-color-scheme="default"] .md-typeset pre code {
  background-color: #F5F5F5; color: #1A1A1A; border: none; padding: 0; font-size: inherit;
}

/* Dark - Fenced */
[data-md-color-scheme="slate"] .md-typeset pre > code {
  background-color: #1a1a2e; color: #E0E0E0;
  border-radius: 8px; border-left: 3px solid #FF8F00; font-size: 0.85em;
}
[data-md-color-scheme="slate"] .md-typeset pre { border-radius: 8px; overflow: hidden; }
/* Dark - Inline */
[data-md-color-scheme="slate"] .md-typeset code {
  background-color: rgba(255, 143, 0, 0.1); color: #FFB74D;
  border-radius: 4px; padding: 0.1em 0.35em; font-size: 0.88em;
  border: 1px solid rgba(255, 143, 0, 0.15);
}
/* Dark - Reset inside fenced */
[data-md-color-scheme="slate"] .md-typeset pre > code,
[data-md-color-scheme="slate"] .md-typeset pre code {
  background-color: #1a1a2e; color: #E0E0E0; border: none; padding: 0; font-size: inherit;
}

/* Copy button */
.md-typeset .md-clipboard { color: #616161; }
.md-typeset .md-clipboard:hover { color: var(--cello-orange); }

/* Line numbers */
.md-typeset .linenums code { background: transparent; }

/* ==========================================================================
   12. TABLES
   ========================================================================== */

/* Light */
[data-md-color-scheme="default"] .md-typeset table:not([class]) {
  border-collapse: collapse; border-radius: 8px; overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}
[data-md-color-scheme="default"] .md-typeset table:not([class]) th {
  background-color: #1A1A1A; color: #FF9100; font-weight: 700;
  padding: 0.8rem 1rem; text-align: left; border-bottom: 2px solid #E65100;
}
[data-md-color-scheme="default"] .md-typeset table:not([class]) td {
  padding: 0.7rem 1rem; border-bottom: 1px solid #E0E0E0;
}
[data-md-color-scheme="default"] .md-typeset table:not([class]) tr:nth-child(even) { background-color: #F5F5F5; }
[data-md-color-scheme="default"] .md-typeset table:not([class]) tr:nth-child(odd) { background-color: #FFFFFF; }
[data-md-color-scheme="default"] .md-typeset table:not([class]) tr:hover { background-color: rgba(230, 81, 0, 0.04); }
[data-md-color-scheme="default"] .md-typeset table:not([class]) td:first-child { font-weight: 500; }

/* Dark */
[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
  border-collapse: collapse; border-radius: 8px; overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background-color: #1A1A1A; color: #FF8F00; font-weight: 700;
  padding: 0.8rem 1rem; text-align: left; border-bottom: 2px solid #E65100;
}
[data-md-color-scheme="slate"] .md-typeset table:not([class]) td {
  padding: 0.7rem 1rem; border-bottom: 1px solid #333;
}
[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(even) { background-color: #1e1e1e; }
[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(odd) { background-color: #171717; }
[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:hover { background-color: rgba(255, 143, 0, 0.06); }
[data-md-color-scheme="slate"] .md-typeset table:not([class]) td:first-child { font-weight: 500; }

/* ==========================================================================
   13. ADMONITIONS
   ========================================================================== */

.md-typeset .admonition, .md-typeset details {
  border-radius: 8px; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  border-left-width: 4px; overflow: hidden;
}

/* Note */
[data-md-color-scheme="default"] .md-typeset .admonition.note,
[data-md-color-scheme="default"] .md-typeset details.note { border-color: #424242; }
[data-md-color-scheme="default"] .md-typeset .note > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .note > summary { background-color: rgba(66, 66, 66, 0.08); }

[data-md-color-scheme="slate"] .md-typeset .admonition.note,
[data-md-color-scheme="slate"] .md-typeset details.note { border-color: #9E9E9E; }
[data-md-color-scheme="slate"] .md-typeset .note > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .note > summary { background-color: rgba(158, 158, 158, 0.1); color: #BDBDBD; }

/* Tip - Orange */
[data-md-color-scheme="default"] .md-typeset .admonition.tip,
[data-md-color-scheme="default"] .md-typeset details.tip { border-color: #E65100; }
[data-md-color-scheme="default"] .md-typeset .tip > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .tip > summary { background-color: rgba(230, 81, 0, 0.08); color: #BF360C; }
[data-md-color-scheme="default"] .md-typeset .tip > .admonition-title::before,
[data-md-color-scheme="default"] .md-typeset .tip > summary::before { background-color: #E65100; }

[data-md-color-scheme="slate"] .md-typeset .admonition.tip,
[data-md-color-scheme="slate"] .md-typeset details.tip { border-color: #FF8F00; }
[data-md-color-scheme="slate"] .md-typeset .tip > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .tip > summary { background-color: rgba(255, 143, 0, 0.1); color: #FFA726; }

/* Warning */
[data-md-color-scheme="default"] .md-typeset .admonition.warning,
[data-md-color-scheme="default"] .md-typeset details.warning { border-color: #FF9100; }
[data-md-color-scheme="default"] .md-typeset .warning > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .warning > summary { background-color: rgba(255, 145, 0, 0.08); }

[data-md-color-scheme="slate"] .md-typeset .admonition.warning,
[data-md-color-scheme="slate"] .md-typeset details.warning { border-color: #FFA726; }
[data-md-color-scheme="slate"] .md-typeset .warning > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .warning > summary { background-color: rgba(255, 167, 38, 0.1); color: #FFB74D; }

/* Danger */
[data-md-color-scheme="default"] .md-typeset .admonition.danger,
[data-md-color-scheme="default"] .md-typeset details.danger { border-color: #D32F2F; }
[data-md-color-scheme="default"] .md-typeset .danger > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .danger > summary { background-color: rgba(211, 47, 47, 0.08); }

[data-md-color-scheme="slate"] .md-typeset .admonition.danger,
[data-md-color-scheme="slate"] .md-typeset details.danger { border-color: #EF5350; }
[data-md-color-scheme="slate"] .md-typeset .danger > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .danger > summary { background-color: rgba(239, 83, 80, 0.1); color: #EF9A9A; }

/* Info */
[data-md-color-scheme="default"] .md-typeset .admonition.info,
[data-md-color-scheme="default"] .md-typeset details.info { border-color: #E65100; }
[data-md-color-scheme="default"] .md-typeset .info > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .info > summary { background-color: rgba(230, 81, 0, 0.06); }

[data-md-color-scheme="slate"] .md-typeset .admonition.info,
[data-md-color-scheme="slate"] .md-typeset details.info { border-color: #FF8F00; }
[data-md-color-scheme="slate"] .md-typeset .info > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .info > summary { background-color: rgba(255, 143, 0, 0.08); color: #FFA726; }

/* Example */
[data-md-color-scheme="default"] .md-typeset .admonition.example,
[data-md-color-scheme="default"] .md-typeset details.example { border-color: #FF6D00; }
[data-md-color-scheme="default"] .md-typeset .example > .admonition-title,
[data-md-color-scheme="default"] .md-typeset .example > summary { background-color: rgba(255, 109, 0, 0.06); }

[data-md-color-scheme="slate"] .md-typeset .admonition.example,
[data-md-color-scheme="slate"] .md-typeset details.example { border-color: #FFA726; }
[data-md-color-scheme="slate"] .md-typeset .example > .admonition-title,
[data-md-color-scheme="slate"] .md-typeset .example > summary { background-color: rgba(255, 167, 38, 0.08); color: #FFB74D; }

/* ==========================================================================
   14. SEARCH
   ========================================================================== */

.md-search-result mark { background-color: rgba(255, 145, 0, 0.4); color: var(--cello-text); }
.md-search-result__link:hover { background-color: rgba(230, 81, 0, 0.06); }

/* ==========================================================================
   15. CONTENT TABS
   ========================================================================== */

.md-typeset .tabbed-labels > label { font-weight: 500; color: var(--cello-text-secondary); transition: color 0.3s ease; }
.md-typeset .tabbed-labels > label:hover { color: var(--cello-orange); }
.md-typeset .tabbed-labels > label--active,
.md-typeset .tabbed-set > input:checked + label { color: var(--cello-orange); border-color: var(--cello-orange); }

/* ==========================================================================
   16. TASK LIST CHECKBOXES
   ========================================================================== */

.md-typeset .task-list-indicator::before { background-color: var(--cello-orange); }
.md-typeset [type="checkbox"]:checked + .task-list-indicator::before { background-color: var(--cello-orange); }

/* ==========================================================================
   17. STATUS BADGES
   ========================================================================== */

.green { color: #4caf50 !important; }
.orange { color: #ff9800 !important; }
.red { color: #f44336 !important; }
.primary { color: var(--cello-orange) !important; font-weight: 600; }

/* ==========================================================================
   18. SCROLLBAR
   ========================================================================== */

[data-md-color-scheme="default"] ::-webkit-scrollbar { width: 8px; height: 8px; }
[data-md-color-scheme="default"] ::-webkit-scrollbar-track { background: #F5F5F5; }
[data-md-color-scheme="default"] ::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #E65100, #FF6D00); border-radius: 4px; }
[data-md-color-scheme="default"] ::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #BF360C, #E65100); }
[data-md-color-scheme="default"] * { scrollbar-width: thin; scrollbar-color: #E65100 #F5F5F5; }

[data-md-color-scheme="slate"] ::-webkit-scrollbar { width: 8px; height: 8px; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-track { background: #1A1A1A; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb { background: linear-gradient(180deg, #FF8F00, #FFA726); border-radius: 4px; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #E65100, #FF8F00); }
[data-md-color-scheme="slate"] * { scrollbar-width: thin; scrollbar-color: #FF8F00 #1A1A1A; }

/* ==========================================================================
   19. LINKS
   ========================================================================== */

[data-md-color-scheme="default"] .md-typeset a { color: #BF360C; transition: color 0.3s ease; }
[data-md-color-scheme="default"] .md-typeset a:hover { color: #E65100; }
[data-md-color-scheme="default"] .md-content a:not(.md-button) { border-bottom: 1px solid rgba(230, 81, 0, 0.2); transition: border-color 0.3s ease, color 0.3s ease; }
[data-md-color-scheme="default"] .md-content a:not(.md-button):hover { border-bottom-color: #E65100; }

[data-md-color-scheme="slate"] .md-typeset a { color: #FF8F00; transition: color 0.3s ease; }
[data-md-color-scheme="slate"] .md-typeset a:hover { color: #FFA726; }
[data-md-color-scheme="slate"] .md-content a:not(.md-button) { border-bottom: 1px solid rgba(255, 143, 0, 0.25); transition: border-color 0.3s ease, color 0.3s ease; }
[data-md-color-scheme="slate"] .md-content a:not(.md-button):hover { border-bottom-color: #FF8F00; }

/* ==========================================================================
   20. TYPOGRAPHY & GENERAL
   ========================================================================== */

/* Headings */
[data-md-color-scheme="default"] .md-typeset h1 { color: #1A1A1A; font-weight: 800; letter-spacing: -0.02em; }
[data-md-color-scheme="default"] .md-typeset h2 { color: #1A1A1A; font-weight: 700; border-bottom: 2px solid rgba(230, 81, 0, 0.15); padding-bottom: 0.3em; }
[data-md-color-scheme="default"] .md-typeset h3 { color: #2D2D2D; font-weight: 600; }

[data-md-color-scheme="slate"] .md-typeset h1 { color: #FFFFFF; font-weight: 800; letter-spacing: -0.02em; }
[data-md-color-scheme="slate"] .md-typeset h2 { color: #FFA726; font-weight: 700; border-bottom: 2px solid rgba(255, 143, 0, 0.2); padding-bottom: 0.3em; }
[data-md-color-scheme="slate"] .md-typeset h3 { color: #E0E0E0; font-weight: 600; }

/* HR */
[data-md-color-scheme="default"] .md-typeset hr { border-color: rgba(230, 81, 0, 0.15); }
[data-md-color-scheme="slate"] .md-typeset hr { border-color: rgba(255, 143, 0, 0.15); }

/* Blockquotes */
[data-md-color-scheme="default"] .md-typeset blockquote {
  border-left: 4px solid #E65100; background: rgba(230, 81, 0, 0.04);
  padding: 0.8rem 1.2rem; border-radius: 0 8px 8px 0; color: #424242;
}
[data-md-color-scheme="slate"] .md-typeset blockquote {
  border-left: 4px solid #FF8F00; background: rgba(255, 143, 0, 0.06);
  padding: 0.8rem 1.2rem; border-radius: 0 8px 8px 0; color: #BDBDBD;
}

/* Keyboard keys */
[data-md-color-scheme="default"] .md-typeset kbd {
  background: #FFFFFF; border: 1px solid #E0E0E0; box-shadow: 0 2px 0 #BDBDBD; color: #1A1A1A;
}
[data-md-color-scheme="slate"] .md-typeset kbd {
  background: #2D2D2D; border: 1px solid #555; box-shadow: 0 2px 0 #333; color: #E0E0E0;
}

/* ==========================================================================
   21. VERSION SELECTOR
   ========================================================================== */

.md-version__current { font-weight: 500; color: #FFFFFF; }

/* ==========================================================================
   22. SOURCE/REPO ICON
   ========================================================================== */

.md-source { color: #FFFFFF; }
.md-source:hover { opacity: 0.8; }

/* ==========================================================================
   23. MERMAID DIAGRAMS
   ========================================================================== */

.mermaid { text-align: center; margin: 1rem 0; }

/* ==========================================================================
   24. BACK-TO-TOP BUTTON
   ========================================================================== */

[data-md-color-scheme="default"] .md-top {
  background-color: #1A1A1A; color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2); transition: background-color 0.3s ease;
}
[data-md-color-scheme="default"] .md-top:hover { background-color: #E65100; box-shadow: 0 4px 16px rgba(230, 81, 0, 0.3); }

[data-md-color-scheme="slate"] .md-top {
  background-color: #1e1e1e; color: #FF8F00;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4); transition: background-color 0.3s ease;
}
[data-md-color-scheme="slate"] .md-top:hover { background-color: #FF8F00; color: #000; box-shadow: 0 4px 16px rgba(255, 143, 0, 0.35); }

/* ==========================================================================
   25. TAGS
   ========================================================================== */

[data-md-color-scheme="default"] .md-tag {
  background-color: rgba(230, 81, 0, 0.1); color: #E65100;
  border-radius: 4px; font-weight: 500; transition: background-color 0.3s ease;
}
[data-md-color-scheme="default"] .md-tag:hover { background-color: rgba(230, 81, 0, 0.2); }

[data-md-color-scheme="slate"] .md-tag {
  background-color: rgba(255, 143, 0, 0.12); color: #FFA726;
  border-radius: 4px; font-weight: 500; transition: background-color 0.3s ease;
}
[data-md-color-scheme="slate"] .md-tag:hover { background-color: rgba(255, 143, 0, 0.25); }

/* ==========================================================================
   26. SOCIAL LINKS
   ========================================================================== */

.md-social__link { color: rgba(255, 255, 255, 0.6); transition: color 0.3s ease, transform 0.3s ease; }
.md-social__link:hover { color: var(--cello-accent); transform: scale(1.15); }

/* ==========================================================================
   27. FEEDBACK / TOOLTIP / PROGRESS
   ========================================================================== */

.md-feedback__icon:hover { color: var(--cello-orange); }
.md-progress { background-color: var(--cello-orange-light); }

[data-md-color-scheme="default"] .md-tooltip { background-color: #1A1A1A; color: #FFFFFF; border-radius: 6px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2); }
[data-md-color-scheme="slate"] .md-tooltip { background-color: #2D2D2D; color: #E0E0E0; border-radius: 6px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4); }

/* ==========================================================================
   28. SELECTION HIGHLIGHT
   ========================================================================== */

[data-md-color-scheme="default"] ::selection { background-color: rgba(230, 81, 0, 0.2); color: #1A1A1A; }
[data-md-color-scheme="default"] ::-moz-selection { background-color: rgba(230, 81, 0, 0.2); color: #1A1A1A; }
[data-md-color-scheme="slate"] ::selection { background-color: rgba(255, 143, 0, 0.25); color: #FFFFFF; }
[data-md-color-scheme="slate"] ::-moz-selection { background-color: rgba(255, 143, 0, 0.25); color: #FFFFFF; }

/* ==========================================================================
   29. ANIMATIONS & TRANSITIONS
   ========================================================================== */

.md-nav__link, .md-typeset a, .md-tabs__link, .md-footer a,
.md-header__button, .md-typeset .md-button, .md-typeset .grid.cards > ul > li {
  transition: all 0.3s ease;
}

.md-content__inner { animation: celloFadeIn 0.4s ease-out; }
@keyframes celloFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Smooth theme switching */
[data-md-color-scheme] {
  transition: background-color 0.4s ease, color 0.3s ease;
}

/* ==========================================================================
   30. HOMEPAGE STYLES - Hero, Performance Banner, Badges
   ========================================================================== */

/* --- Hero Section --- */
.hero-section { text-align: center; padding: 2rem 1rem 1rem 1rem; }

[data-md-color-scheme="default"] .hero-section {
  background: linear-gradient(135deg, rgba(255, 109, 0, 0.04) 0%, rgba(230, 81, 0, 0.08) 50%, rgba(191, 54, 12, 0.04) 100%);
  border-radius: 16px; padding: 3rem 2rem 2rem; margin: -1rem -0.5rem 2rem;
}
[data-md-color-scheme="slate"] .hero-section {
  background: linear-gradient(135deg, rgba(255, 143, 0, 0.06) 0%, rgba(255, 143, 0, 0.02) 100%);
  border-radius: 16px; padding: 3rem 2rem 2rem; margin: -1rem -0.5rem 2rem;
  border: 1px solid rgba(255, 143, 0, 0.1);
}

[data-md-color-scheme="default"] .hero-title { font-size: 18px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.25rem; color: #BF360C; line-height: 1.1; }
[data-md-color-scheme="slate"] .hero-title { font-size: 18px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.25rem; color: #FFA726; line-height: 1.1; }

[data-md-color-scheme="default"] .hero-tagline { font-size: 16px; font-weight: 700; margin: 0.5rem 0 0.25rem 0; color: #1A1A1A; }
[data-md-color-scheme="slate"] .hero-tagline { font-size: 16px; font-weight: 700; margin: 0.5rem 0 0.25rem 0; color: #FFFFFF; }

[data-md-color-scheme="default"] .hero-subtitle { font-size: 16px; color: #424242; margin-bottom: 1.5rem; }
[data-md-color-scheme="slate"] .hero-subtitle { font-size: 16px; color: #BDBDBD; margin-bottom: 1.5rem; }

/* Hide default h1 on homepage */
.hero-section + .md-typeset h1,
body[data-md-url="/"] .md-typeset h1:first-of-type { display: none; }

/* --- Hero Badges --- */
.hero-badges { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; margin-bottom: 0.5rem; }
.hero-badges code { padding: 0.3em 0.8em; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }

[data-md-color-scheme="default"] .badge-version { background: #1A1A1A !important; color: #FF9100 !important; border: 1px solid #424242 !important; }
[data-md-color-scheme="default"] .badge-tests { background: #1A1A1A !important; color: #4caf50 !important; border: 1px solid #424242 !important; }
[data-md-color-scheme="default"] .badge-license { background: #1A1A1A !important; color: #42a5f5 !important; border: 1px solid #424242 !important; }
[data-md-color-scheme="default"] .badge-python { background: #1A1A1A !important; color: #ab47bc !important; border: 1px solid #424242 !important; }

[data-md-color-scheme="slate"] .badge-version { background: #1e1e1e !important; color: #FFA726 !important; border: 1px solid #555 !important; }
[data-md-color-scheme="slate"] .badge-tests { background: #1e1e1e !important; color: #66BB6A !important; border: 1px solid #555 !important; }
[data-md-color-scheme="slate"] .badge-license { background: #1e1e1e !important; color: #64B5F6 !important; border: 1px solid #555 !important; }
[data-md-color-scheme="slate"] .badge-python { background: #1e1e1e !important; color: #CE93D8 !important; border: 1px solid #555 !important; }

/* --- Performance Banner --- */
[data-md-color-scheme="default"] .perf-banner {
  text-align: center; padding: 1.5rem; margin: 1rem 0; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 109, 0, 0.08), rgba(255, 193, 7, 0.08));
  border: 1px solid rgba(255, 145, 0, 0.25);
}
[data-md-color-scheme="slate"] .perf-banner {
  text-align: center; padding: 1.5rem; margin: 1rem 0; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 143, 0, 0.08), rgba(255, 183, 77, 0.05));
  border: 1px solid rgba(255, 143, 0, 0.2);
}

[data-md-color-scheme="default"] .perf-number { font-size: 18px; font-weight: 900; color: #BF360C; line-height: 1.2; margin-bottom: 0.25rem; }
[data-md-color-scheme="slate"] .perf-number { font-size: 18px; font-weight: 900; color: #FFA726; line-height: 1.2; margin-bottom: 0.25rem; }

[data-md-color-scheme="default"] .perf-label { font-size: 13px; font-weight: 600; color: #424242; }
[data-md-color-scheme="slate"] .perf-label { font-size: 13px; font-weight: 600; color: #BDBDBD; }

.perf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 1.5rem; text-align: center; }

[data-md-color-scheme="default"] .perf-item { padding: 1rem; border-radius: 8px; background: #FFFFFF; border: 1px solid #E0E0E0; transition: transform 0.3s ease, box-shadow 0.3s ease; }
[data-md-color-scheme="default"] .perf-item:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08); }
[data-md-color-scheme="slate"] .perf-item { padding: 1rem; border-radius: 8px; background: #1e1e1e; border: 1px solid #333; transition: transform 0.3s ease, box-shadow 0.3s ease; }
[data-md-color-scheme="slate"] .perf-item:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(255, 143, 0, 0.1); }

[data-md-color-scheme="default"] .fw-name { font-weight: 700; font-size: 1rem; margin-bottom: 0.25rem; color: #1A1A1A; }
[data-md-color-scheme="slate"] .fw-name { font-weight: 700; font-size: 1rem; margin-bottom: 0.25rem; color: #E0E0E0; }

.fw-rps { font-size: 18px; font-weight: 800; }
[data-md-color-scheme="default"] .fw-rps.cello-rps { color: #BF360C; }
[data-md-color-scheme="default"] .fw-rps.other-rps { color: #424242; }
[data-md-color-scheme="slate"] .fw-rps.cello-rps { color: #FFA726; }
[data-md-color-scheme="slate"] .fw-rps.other-rps { color: #9E9E9E; }

[data-md-color-scheme="default"] .fw-detail { font-size: 0.8rem; color: #616161; }
[data-md-color-scheme="slate"] .fw-detail { font-size: 0.8rem; color: #9E9E9E; }

/* --- Architecture Section --- */
[data-md-color-scheme="default"] .arch-explain { text-align: center; max-width: 700px; margin: 0 auto; color: #424242; font-size: 14px; }
[data-md-color-scheme="slate"] .arch-explain { text-align: center; max-width: 700px; margin: 0 auto; color: #BDBDBD; font-size: 14px; }

/* --- What's New Box --- */
[data-md-color-scheme="default"] .whats-new-box {
  padding: 1.5rem 2rem; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 109, 0, 0.06), rgba(156, 39, 176, 0.06));
  border: 1px solid rgba(255, 145, 0, 0.2); margin: 1rem 0;
}
[data-md-color-scheme="slate"] .whats-new-box {
  padding: 1.5rem 2rem; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 143, 0, 0.06), rgba(206, 147, 216, 0.04));
  border: 1px solid rgba(255, 143, 0, 0.15); margin: 1rem 0;
}
.whats-new-box h3 { margin-top: 0; }

/* --- Footer Tagline --- */
[data-md-color-scheme="default"] .footer-tagline { text-align: center; padding: 2rem 0 1rem 0; font-size: 14px; color: #1A1A1A; }
[data-md-color-scheme="slate"] .footer-tagline { text-align: center; padding: 2rem 0 1rem 0; font-size: 14px; color: #E0E0E0; }
.footer-tagline .star-btn { margin-top: 1rem; }

/* ==========================================================================
   31. RESPONSIVE
   ========================================================================== */

@media screen and (max-width: 76.1875em) {
  .md-typeset .grid.cards > ul { gap: 0.5rem; }
}
@media screen and (max-width: 768px) {
  .hero-title { font-size: 16px !important; }
  .hero-tagline { font-size: 14px !important; }
  .perf-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .perf-number { font-size: 16px !important; }
}
@media screen and (max-width: 60em) {
  .md-typeset .md-button--primary,
  .md-typeset .md-button:not(.md-button--primary) { width: 100%; text-align: center; }
}
@media screen and (max-width: 480px) {
  .perf-grid { grid-template-columns: 1fr !important; }
}

/* ==========================================================================
   32. PRINT STYLES
   ========================================================================== */

@media print {
  .md-header, .md-footer, .md-sidebar, .md-tabs, .md-top { display: none !important; }
  .md-main__inner { margin: 0; padding: 0; }
  .md-content { max-width: 100%; }
  .md-typeset a { color: #1A1A1A !important; text-decoration: underline; }
  .md-typeset pre > code { background-color: #F5F5F5 !important; color: #1A1A1A !important; border: 1px solid #E0E0E0 !important; }
}