/*
  CaaT Academy / Control & Robotics Lab visual refresh
  Placement: append this block to the END of Tutorials/assets/css/styles.css
  Scope: homepage classes use .crl-*; course-page rules override existing selectors without renaming classes or ids.
*/

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --crl-bg: #070b16;
  --crl-bg-soft: #0d1424;
  --crl-bg-card: rgba(255, 255, 255, 0.075);
  --crl-bg-card-strong: rgba(255, 255, 255, 0.11);
  --crl-text: #f8fafc;
  --crl-text-muted: #aab7cf;
  --crl-ink: #101828;
  --crl-body: #344054;
  --crl-border: rgba(255, 255, 255, 0.14);
  --crl-border-light: rgba(16, 24, 40, 0.11);
  --crl-primary: #58d5ff;
  --crl-primary-2: #7c5cff;
  --crl-accent: #2fffd1;
  --crl-warning: #ffd166;
  --crl-dark-button-1: #050816;
  --crl-dark-button-2: #10213f;
  --crl-dark-button-3: #0f4c5c;
  --crl-radius-xl: 34px;
  --crl-radius-lg: 24px;
  --crl-radius-md: 16px;
  --crl-shadow-soft: 0 24px 70px rgba(2, 8, 23, 0.2);
  --crl-shadow-dark: 0 30px 90px rgba(0, 0, 0, 0.35);
  --crl-font-main: "Inter", "Roboto Slab", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --crl-font-display: "Space Grotesk", "Inter", "Roboto Slab", system-ui, sans-serif;
}

body.crl-home *,
body.crl-home *::before,
body.crl-home *::after,
body:not(.crl-home) *,
body:not(.crl-home) *::before,
body:not(.crl-home) *::after {
  box-sizing: border-box;
}

/* =========================================================
   Homepage
   ========================================================= */

html:has(body.crl-home),
body.crl-home {
  min-height: 100%;
  height: auto;
  margin: 0;
  overflow-x: visible;
  overflow-y: auto;
  scroll-behavior: smooth;
  font-family: var(--crl-font-main);
  color: var(--crl-text);
  background:
    radial-gradient(circle at 15% 5%, rgba(88, 213, 255, 0.28), transparent 28rem),
    radial-gradient(circle at 82% 10%, rgba(124, 92, 255, 0.22), transparent 30rem),
    linear-gradient(135deg, #060914 0%, #08111f 44%, #0b0f1f 100%);
}

body.crl-home::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
  z-index: 0;
}

body.crl-home a {
  color: inherit;
  text-decoration: none;
}

.crl-site-header,
body.crl-home main,
.crl-site-footer {
  position: relative;
  z-index: 1;
}

.crl-site-header {
  width: min(1180px, calc(100% - 32px));
  margin: 22px auto 0;
  min-height: 76px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid var(--crl-border);
  border-radius: 999px;
  background: rgba(7, 11, 22, 0.66);
  backdrop-filter: blur(18px);
  box-shadow: var(--crl-shadow-dark);
}

.crl-brand {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--crl-font-display);
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
}

.crl-brand img {
  width: 48px !important;
  height: 48px !important;
  max-width: 48px;
  object-fit: contain;
  flex: 0 0 48px;
  display: block;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px;
}

.crl-top-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.crl-top-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  color: var(--crl-text-muted);
  transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.crl-top-nav a:hover {
  color: var(--crl-text);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.crl-hero {
  width: min(1180px, calc(100% - 32px));
  margin: 72px auto 54px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: stretch;
}

.crl-hero__content {
  min-width: 0;
  padding: clamp(36px, 6vw, 78px);
  border: 1px solid var(--crl-border);
  border-radius: var(--crl-radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.055)),
    radial-gradient(circle at 88% 18%, rgba(47, 255, 209, 0.16), transparent 20rem);
  box-shadow: var(--crl-shadow-dark);
}

.crl-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  max-width: 100%;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.55;
  color: var(--crl-accent) !important;
  text-transform: uppercase;
}

.crl-eyebrow::before {
  content: "";
  width: 34px;
  min-width: 34px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--crl-accent), var(--crl-primary));
}

.crl-hero h1 {
  max-width: 880px;
  margin: 0;
  font-family: var(--crl-font-display);
  font-size: clamp(3.1rem, 8vw, 6.5rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
  color: var(--crl-text);
}

.crl-hero__lead {
  max-width: 850px;
  margin: 28px 0 0;
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
  line-height: 1.78;
  color: var(--crl-text-muted) !important;
}

.crl-hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.crl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 900;
  letter-spacing: -0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.crl-btn:hover {
  transform: translateY(-2px);
}

.crl-btn--primary {
  color: #ffffff !important;
  background: linear-gradient(135deg, var(--crl-dark-button-1), var(--crl-dark-button-2) 48%, var(--crl-dark-button-3));
  box-shadow: 0 16px 44px rgba(15, 76, 92, 0.34);
}

.crl-btn--primary:hover {
  background: linear-gradient(135deg, #00040d, #0a1933 48%, #0b3b49);
}

.crl-btn--ghost {
  color: var(--crl-text) !important;
  border: 1px solid var(--crl-border);
  background: rgba(255, 255, 255, 0.075);
}

.crl-hero-panel {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.crl-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 150px;
  padding: 28px;
  border: 1px solid var(--crl-border);
  border-radius: var(--crl-radius-lg);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  box-shadow: var(--crl-shadow-dark);
}

.crl-stat strong {
  font-family: var(--crl-font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.06em;
  color: var(--crl-text);
}

.crl-stat span {
  margin-top: 10px;
  font-weight: 800;
  color: var(--crl-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
}

.crl-section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 52px;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--crl-border);
  border-radius: var(--crl-radius-xl);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: var(--crl-shadow-dark);
}

.crl-section--intro p {
  max-width: 980px;
  margin: 0;
  color: var(--crl-text-muted) !important;
  font-size: 1.08rem;
  line-height: 1.85;
}

.crl-section-heading {
  margin-bottom: 26px;
}

.crl-section-heading--split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.crl-section h2 {
  margin: 0;
  font-family: var(--crl-font-display);
  font-size: clamp(2rem, 4vw, 3.35rem);
  letter-spacing: -0.055em;
  color: var(--crl-text);
}

.crl-section-note {
  max-width: 440px;
  margin: 0;
  color: var(--crl-text-muted) !important;
  line-height: 1.7;
}

.crl-course-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.crl-course-card {
  min-height: 360px;
  min-width: 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--crl-border);
  border-radius: var(--crl-radius-lg);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.045)),
    radial-gradient(circle at 16% 4%, rgba(88, 213, 255, 0.16), transparent 14rem);
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.crl-course-card:hover {
  transform: translateY(-6px);
  border-color: rgba(88, 213, 255, 0.52);
  background-color: rgba(255, 255, 255, 0.05);
}

.crl-course-card--robotics { background-image: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045)), radial-gradient(circle at 14% 5%, rgba(47, 255, 209, 0.16), transparent 14rem); }
.crl-course-card--control { background-image: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045)), radial-gradient(circle at 14% 5%, rgba(124, 92, 255, 0.18), transparent 14rem); }
.crl-course-card--dynamics { background-image: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045)), radial-gradient(circle at 14% 5%, rgba(255, 209, 102, 0.18), transparent 14rem); }
.crl-course-card--mobile { background-image: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045)), radial-gradient(circle at 14% 5%, rgba(88, 213, 255, 0.18), transparent 14rem); }
.crl-course-card--advanced { background-image: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045)), radial-gradient(circle at 14% 5%, rgba(255, 92, 168, 0.17), transparent 14rem); }

.crl-course-card__icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #04111f;
  background: linear-gradient(135deg, var(--crl-accent), var(--crl-primary));
  box-shadow: 0 12px 28px rgba(88, 213, 255, 0.2);
  font-size: 1.25rem;
}

.crl-course-card__meta {
  margin: 28px 0 10px;
  color: var(--crl-accent) !important;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.crl-course-card h3 {
  margin: 0;
  font-family: var(--crl-font-display);
  font-size: 1.42rem;
  line-height: 1.14;
  letter-spacing: -0.04em;
  color: var(--crl-text);
}

.crl-course-card p {
  color: var(--crl-text-muted) !important;
  line-height: 1.68;
}

.crl-course-card__link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--crl-border);
  color: var(--crl-text) !important;
  font-weight: 900;
}

.crl-course-card__link span {
  transition: transform 0.2s ease;
}

.crl-course-card__link:hover span {
  transform: translateX(4px);
}

.crl-learning-roadmap {
  --roadmap-line: linear-gradient(180deg, rgba(47, 255, 209, 0.9), rgba(88, 213, 255, 0.65), rgba(255, 209, 102, 0.7));
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 34px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: roadmap;
}

.crl-learning-roadmap::before {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 50%;
  width: 3px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: var(--roadmap-line);
  box-shadow: 0 0 30px rgba(88, 213, 255, 0.28);
}

.crl-learning-roadmap li {
  position: relative;
  min-width: 0;
}

.crl-learning-roadmap li::before {
  content: "";
  position: absolute;
  top: 28px;
  width: 34px;
  height: 2px;
  background: rgba(88, 213, 255, 0.38);
}

.crl-learning-roadmap li:nth-child(odd)::before {
  right: -34px;
}

.crl-learning-roadmap li:nth-child(even)::before {
  left: -34px;
}

.crl-learning-roadmap li::after {
  content: "";
  position: absolute;
  top: 20px;
  width: 18px;
  height: 18px;
  border: 3px solid #08111f;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--crl-accent), var(--crl-primary));
  box-shadow: 0 0 0 5px rgba(88, 213, 255, 0.16), 0 0 26px rgba(88, 213, 255, 0.35);
  z-index: 2;
}

.crl-learning-roadmap li:nth-child(odd)::after {
  right: -43px;
}

.crl-learning-roadmap li:nth-child(even)::after {
  left: -43px;
}

.crl-roadmap-card {
  min-height: 154px;
  display: block;
  padding: 22px;
  border: 1px solid var(--crl-border);
  border-radius: 24px;
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.045)),
    rgba(255, 255, 255, 0.05);
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.crl-roadmap-card--available:hover {
  transform: translateY(-4px);
  border-color: rgba(47, 255, 209, 0.6);
  background-color: rgba(255, 255, 255, 0.08);
}

.crl-roadmap-card--planned {
  opacity: 0.72;
}

.crl-roadmap-card__number {
  display: inline-flex;
  margin-right: 10px;
  font-family: var(--crl-font-display);
  color: var(--crl-accent);
  font-size: 1.05rem;
  font-weight: 900;
}

.crl-roadmap-card__stage {
  color: var(--crl-text-muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.crl-roadmap-card h3 {
  margin: 14px 0 10px;
  font-family: var(--crl-font-display);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.14;
  letter-spacing: -0.045em;
  color: var(--crl-text);
}

.crl-roadmap-card p {
  margin: 0;
  color: var(--crl-text-muted) !important;
  font-weight: 800;
  line-height: 1.45;
}

.crl-roadmap-card--available p {
  color: var(--crl-accent) !important;
}

.crl-site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 42px;
  color: var(--crl-text-muted);
  text-align: center;
}

.crl-site-footer p {
  color: var(--crl-text-muted) !important;
}

/* =========================================================
   Course page refresh: overrides only, no selector renaming
   ========================================================= */

body:not(.crl-home) {
  font-family: var(--crl-font-main) !important;
  background: #f5f7fb;
}

body:not(.crl-home) #wrapper {
  background:
    radial-gradient(circle at top left, rgba(88, 213, 255, 0.12), transparent 28rem),
    linear-gradient(180deg, #f7faff 0%, #eef3f9 100%);
}

body:not(.crl-home) #main {
  min-width: 0;
}

body:not(.crl-home) #main > .inner {
  --crl-inner-pad: clamp(24px, 4.6vw, 82px);
  padding: var(--crl-inner-pad);
}

body:not(.crl-home) #header {
  min-height: 100px;
  margin: calc(var(--crl-inner-pad) * -1) calc(var(--crl-inner-pad) * -1) 56px calc(var(--crl-inner-pad) * -1);
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(135deg, rgba(8, 13, 27, 0.98), rgba(18, 28, 52, 0.98)),
    radial-gradient(circle at 95% 15%, rgba(88, 213, 255, 0.24), transparent 20rem);
  box-shadow: 0 22px 55px rgba(2, 8, 23, 0.22);
}

body:not(.crl-home) #header .logo {
  min-height: 100px;
  height: 100px;
  line-height: 1 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 14px;
  width: 100%;
  padding: 0 var(--crl-inner-pad);
}

body:not(.crl-home) #header .logo img {
  width: 52px !important;
  height: 52px !important;
  max-width: 52px !important;
  min-width: 52px !important;
  display: block !important;
  object-fit: contain !important;
  margin-top: 0 !important;
  flex: 0 0 52px !important;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px;
}

body:not(.crl-home) #header .logo a {
  display: inline-flex !important;
  align-items: center !important;
  height: 100px;
  margin-right: 0 !important;
  font-family: var(--crl-font-display) !important;
  font-size: clamp(1.65rem, 3vw, 2.15rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.035em !important;
  line-height: 1 !important;
  color: #ffffff !important;
  white-space: nowrap;
}

body:not(.crl-home) #sidebar .toggle {
  height: 100px !important;
  line-height: 100px !important;
  top: 0 !important;
}

body:not(.crl-home) #sidebar .toggle::before {
  height: 100px !important;
  line-height: 100px !important;
  top: 0 !important;
  margin-top: 0 !important;
}

body:not(.crl-home) .page-heading {
  margin-bottom: 26px;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--crl-border-light);
  border-radius: 30px;
  background:
    radial-gradient(circle at 90% 15%, rgba(88, 213, 255, 0.16), transparent 18rem),
    linear-gradient(135deg, #ffffff 0%, #f6f9ff 100%);
  box-shadow: var(--crl-shadow-soft);
}

body:not(.crl-home) .page-heading h1 {
  margin-bottom: 18px !important;
  font-family: var(--crl-font-display) !important;
  font-size: clamp(2.05rem, 4vw, 4.3rem) !important;
  line-height: 0.98 !important;
  letter-spacing: -0.065em !important;
  color: #0b1220 !important;
}

body:not(.crl-home) .page-heading h3 {
  margin-bottom: 20px;
  font-family: var(--crl-font-display) !important;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  color: #264b6d;
}

body:not(.crl-home) .page-heading p {
  max-width: 1100px;
  margin: 0 auto;
  color: #475467 !important;
  font-size: 1.05rem !important;
  line-height: 1.8 !important;
}

body:not(.crl-home) .simple-post {
  margin-top: 18px !important;
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--crl-border-light);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.08);
}

body:not(.crl-home) .simple-post + .simple-post {
  margin-top: 24px !important;
}

body:not(.crl-home) .simple-post .container-fluid,
body:not(.crl-home) .page-heading .container-fluid,
body:not(.crl-home) .contact-form .container-fluid,
body:not(.crl-home) .section-heading .container-fluid {
  max-width: 100%;
}

body:not(.crl-home) .simple-post h1,
body:not(.crl-home) .simple-post h2,
body:not(.crl-home) .simple-post h3,
body:not(.crl-home) .simple-post h4 {
  font-family: var(--crl-font-display) !important;
  letter-spacing: -0.035em;
  color: #101828;
}

body:not(.crl-home) .simple-post h2 {
  position: relative;
  padding-left: 18px;
  line-height: 1.2;
}

body:not(.crl-home) .simple-post h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, #58d5ff, #0f4c5c);
}

body:not(.crl-home) .down-content p,
body:not(.crl-home) .simple-post p,
body:not(.crl-home) .right-content p,
body:not(.crl-home) .left-content p {
  color: #344054 !important;
  font-size: 1.01rem !important;
  line-height: 1.82 !important;
}

body:not(.crl-home) .simple-post ul,
body:not(.crl-home) .simple-post ol {
  color: #344054;
  line-height: 1.78;
}

body:not(.crl-home) .simple-post li {
  margin-bottom: 0.45rem;
}

body:not(.crl-home) strong {
  color: #101828;
}

body:not(.crl-home) #main a:not(.crl-btn):not(.copy-btn):not(.crl-course-card__link):not(.crl-roadmap-card) {
  color: #075985 !important;
  font-weight: 800;
  text-decoration: none !important;
  border-bottom: 1px solid rgba(14, 116, 144, 0.28);
}

body:not(.crl-home) #main a:not(.crl-btn):not(.copy-btn):not(.crl-course-card__link):not(.crl-roadmap-card):hover {
  color: #0f172a !important;
  border-bottom-color: rgba(15, 23, 42, 0.5);
}

body:not(.crl-home) pre {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px !important;
  box-shadow: 0 18px 45px rgba(2, 8, 23, 0.16);
}

body:not(.crl-home) code {
  border-radius: 8px !important;
  overflow-wrap: anywhere;
}

body:not(.crl-home) .copy-btn {
  border-radius: 0 !important;
  font-family: var(--crl-font-main);
  font-weight: 800;
}

body:not(.crl-home) .diagram-wrapper,
body:not(.crl-home) .mermaid {
  max-width: 100%;
  overflow-x: auto;
}

body:not(.crl-home) .diagram-wrapper {
  border-radius: 18px;
}

body:not(.crl-home) .diagram-wrapper svg,
body:not(.crl-home) .mermaid svg {
  max-width: 100%;
  height: auto;
}

body:not(.crl-home) .mermaid {
  border: 1px solid var(--crl-border-light);
  border-radius: 18px;
  box-shadow: 0 16px 44px rgba(16, 24, 40, 0.08);
}

body:not(.crl-home) mjx-container,
body:not(.crl-home) .MathJax,
body:not(.crl-home) .MathJax_Display {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

body:not(.crl-home) table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

body:not(.crl-home) .default-table,
body:not(.crl-home) .alternate-table {
  max-width: 100%;
  overflow-x: auto;
}

body:not(.crl-home) table th {
  background: #111827;
  color: #ffffff !important;
  font-family: var(--crl-font-display);
}

body:not(.crl-home) table td {
  color: #344054;
}

body:not(.crl-home) .primary-button a,
body:not(.crl-home) button,
body:not(.crl-home) .border-rectangle-button a,
body:not(.crl-home) .filled-rectangle-button a,
body:not(.crl-home) .filled-radius-button a,
body:not(.crl-home) .border-radius-button a,
body:not(.crl-home) .filled-rounded-button a,
body:not(.crl-home) .border-rounded-button a,
body:not(.crl-home) .filled-icon-button a,
body:not(.crl-home) .border-icon-button a {
  border-radius: 0 !important;
  border: 0 !important;
  color: #ffffff !important;
  background: linear-gradient(135deg, var(--crl-dark-button-1), var(--crl-dark-button-2) 48%, var(--crl-dark-button-3)) !important;
  font-family: var(--crl-font-main);
  font-weight: 900 !important;
  letter-spacing: 0.04em;
  box-shadow: 0 14px 34px rgba(15, 76, 92, 0.24);
}

body:not(.crl-home) .primary-button a:hover,
body:not(.crl-home) button:hover,
body:not(.crl-home) .border-rectangle-button a:hover,
body:not(.crl-home) .filled-rectangle-button a:hover,
body:not(.crl-home) .filled-radius-button a:hover,
body:not(.crl-home) .border-radius-button a:hover,
body:not(.crl-home) .filled-rounded-button a:hover,
body:not(.crl-home) .border-rounded-button a:hover,
body:not(.crl-home) .filled-icon-button a:hover,
body:not(.crl-home) .border-icon-button a:hover {
  color: #ffffff !important;
  background: linear-gradient(135deg, #00040d, #0a1933 48%, #0b3b49) !important;
  transform: translateY(-1px);
}

body:not(.crl-home) .border-rectangle-button h1,
body:not(.crl-home) .filled-rectangle-button h1,
body:not(.crl-home) .border-radius-button h1,
body:not(.crl-home) .filled-radius-button h1 {
  font-family: var(--crl-font-display) !important;
  color: #0b1220 !important;
  letter-spacing: -0.05em;
}

/* Sidebar typography and visual upgrade */
body:not(.crl-home) #sidebar {
  background:
    radial-gradient(circle at 20% 0%, rgba(88, 213, 255, 0.2), transparent 18rem),
    linear-gradient(180deg, #070b16 0%, #0c1323 52%, #111827 100%) !important;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

body:not(.crl-home) #sidebar > .inner {
  scrollbar-color: rgba(88, 213, 255, 0.65) rgba(255, 255, 255, 0.08);
}

body:not(.crl-home) #sidebar > .inner > #search {
  background: rgba(255, 255, 255, 0.06) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body:not(.crl-home) #menu ul {
  font-family: var(--crl-font-display) !important;
  letter-spacing: -0.01em !important;
  text-transform: none !important;
}

body:not(.crl-home) #menu ul li h3 {
  color: #58d5ff !important;
  font-family: var(--crl-font-display) !important;
  font-size: 1.35rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.04em !important;
}

body:not(.crl-home) #menu ul li h4 {
  color: #2fffd1 !important;
  font-family: var(--crl-font-display) !important;
  font-size: 1.08rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.035em !important;
}

body:not(.crl-home) #menu ul li h6 {
  color: #e5e7eb !important;
  font-family: var(--crl-font-display) !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.015em !important;
}

body:not(.crl-home) #menu ul a,
body:not(.crl-home) #menu ul span {
  border-radius: 0 !important;
  color: #d9e6f7 !important;
  font-family: var(--crl-font-display) !important;
  font-size: 0.86rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em !important;
  line-height: 1.35;
  transition: color 0.2s ease, background 0.2s ease, padding-left 0.2s ease;
}

body:not(.crl-home) #menu ul a:hover,
body:not(.crl-home) #menu ul span:hover {
  color: #ffffff !important;
  background: rgba(88, 213, 255, 0.1);
  padding-left: 10px;
}

body:not(.crl-home) #menu ul a.opener:before,
body:not(.crl-home) #menu ul span.opener:before {
  color: #58d5ff !important;
}

body:not(.crl-home) #menu ul li a.active-lesson {
  color: #ffffff !important;
  background: linear-gradient(135deg, #051225 0%, #0f4c5c 48%, #0e7490 100%) !important;
  border-radius: 0 !important;
  box-shadow: 0 12px 28px rgba(8, 47, 73, 0.34);
}

body:not(.crl-home) #menu > ul > li {
  border-top-color: rgba(255, 255, 255, 0.08) !important;
}

body:not(.crl-home) .featured-posts {
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055) !important;
}

body:not(.crl-home) #footer .copyright,
body:not(.crl-home) #footer .copyright p {
  color: rgba(255, 255, 255, 0.74) !important;
}

@media (max-width: 1180px) {
  .crl-hero {
    grid-template-columns: 1fr;
  }

  .crl-hero-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .crl-course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 845px) {
  body:not(.crl-home) #main > .inner {
    --crl-inner-pad: 15px;
  }

  body:not(.crl-home) #header {
    min-height: 100px;
    margin: calc(var(--crl-inner-pad) * -1) calc(var(--crl-inner-pad) * -1) 38px calc(var(--crl-inner-pad) * -1) !important;
  }

  body:not(.crl-home) #header .logo {
    justify-content: flex-end !important;
    padding: 0 24px 0 110px;
  }

  body:not(.crl-home) #header .logo img {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px !important;
    flex-basis: 44px !important;
  }

  body:not(.crl-home) #header .logo a {
    height: 100px;
    font-size: clamp(1.2rem, 5vw, 1.65rem) !important;
  }

  body:not(.crl-home) #sidebar .toggle {
    height: 100px !important;
    line-height: 100px !important;
    top: 0 !important;
    width: 7.25em;
  }

  body:not(.crl-home) #sidebar .toggle::before {
    height: 100px !important;
    line-height: 100px !important;
    margin-top: 0 !important;
    margin-left: -0.0855em;
    z-index: 2;
  }

  body:not(.crl-home) #sidebar .toggle::after {
    top: 20px !important;
    height: 60px !important;
    border-radius: 0 !important;
    background: linear-gradient(135deg, var(--crl-dark-button-1), var(--crl-dark-button-2) 52%, var(--crl-dark-button-3)) !important;
  }

  body:not(.crl-home) .page-heading h1 {
    margin-top: 0 !important;
  }
}

@media (max-width: 760px) {
  .crl-site-header {
    align-items: center;
    border-radius: 28px;
    flex-direction: column;
  }

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

  .crl-top-nav {
    justify-content: center;
  }

  .crl-hero {
    margin-top: 36px;
  }

  .crl-hero-panel,
  .crl-course-grid {
    grid-template-columns: 1fr;
  }

  .crl-section-heading--split {
    align-items: flex-start;
    flex-direction: column;
  }

  .crl-course-card {
    min-height: auto;
  }

  .crl-learning-roadmap {
    grid-template-columns: 1fr;
    padding-left: 30px;
    gap: 18px;
  }

  .crl-learning-roadmap::before {
    left: 9px;
  }

  .crl-learning-roadmap li::before {
    left: -21px !important;
    right: auto !important;
    width: 21px;
  }

  .crl-learning-roadmap li::after {
    left: -30px !important;
    right: auto !important;
  }

  body:not(.crl-home) .page-heading {
    border-radius: 22px;
  }

  body:not(.crl-home) .simple-post {
    border-radius: 20px;
  }
}

/* =========================================================
   Requested refinement patch: copy icons, light gradients,
   logical roadmap support, and light course grid background
   ========================================================= */

/* Course pages: light grid background in the full reading area, not hidden overflow. */
body:not(.crl-home) #wrapper,
body:not(.crl-home) #main {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 8% 6%, rgba(88, 213, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 92% 14%, rgba(124, 92, 255, 0.11), transparent 26rem),
    linear-gradient(180deg, #fbfdff 0%, #f4f8ff 54%, #eef4fb 100%) !important;
  background-size: 42px 42px, 42px 42px, auto, auto, auto !important;
  background-position: 0 0, 0 0, center, center, center !important;
}

/* Header brand hover: keep it bright and readable. */
body:not(.crl-home) #header .logo a:hover,
body.crl-home .crl-brand:hover span {
  color: #e0f7ff !important;
  text-shadow: 0 0 18px rgba(88, 213, 255, 0.42);
}

/* Code copy control: show only an icon, ChatGPT-style, at the top-right. */
body:not(.crl-home) .code-block-wrapper,
body:not(.crl-home) .code-container,
body:not(.crl-home) .highlight,
body:not(.crl-home) .code-copy-wrapper,
body:not(.crl-home) pre {
  position: relative;
}

body:not(.crl-home) .copy-btn {
  position: absolute !important;
  top: 0.72rem !important;
  right: 0.82rem !important;
  z-index: 5 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 44px !important;
  min-width: 44px !important;
  height: 38px !important;
  min-height: 38px !important;
  padding: 0 !important;
  overflow: hidden !important;
  border: 1px solid rgba(226, 232, 240, 0.28) !important;
  border-radius: 12px !important;
  color: #e5edf7 !important;
  background: rgba(15, 23, 42, 0.78) !important;
  box-shadow: 0 12px 30px rgba(2, 8, 23, 0.3) !important;
  backdrop-filter: blur(10px);
  font-size: 0 !important;
  line-height: 1 !important;
  letter-spacing: 0 !important;
  text-indent: 0 !important;
  text-transform: none !important;
}

body:not(.crl-home) .copy-btn::before {
  content: "\f0c5";
  display: block;
  font-family: "FontAwesome";
  font-size: 18px;
  font-weight: normal;
  line-height: 1;
}

body:not(.crl-home) .copy-btn.copied::before,
body:not(.crl-home) .copy-btn.is-copied::before,
body:not(.crl-home) .copy-btn[data-copied="true"]::before,
body:not(.crl-home) .copy-btn[data-state="copied"]::before {
  content: "\f00c";
}

body:not(.crl-home) .copy-btn:hover {
  color: #ffffff !important;
  background: rgba(30, 41, 59, 0.94) !important;
  transform: translateY(-1px);
}

/* Active lesson: padded, rounded, light gradient highlight. */
body:not(.crl-home) #menu ul li a.active-lesson {
  display: block !important;
  margin: 4px 0 !important;
  padding: 10px 14px !important;
  border-radius: 8px !important;
  color: #0f172a !important;
  background: linear-gradient(135deg, #f0fdff 0%, #dff7ff 42%, #eef2ff 100%) !important;
  box-shadow:
    inset 0 0 0 1px rgba(125, 211, 252, 0.74),
    0 10px 24px rgba(14, 116, 144, 0.16) !important;
}

body:not(.crl-home) #menu ul li a.active-lesson:hover {
  color: #020617 !important;
  padding-left: 14px !important;
  background: linear-gradient(135deg, #e0faff 0%, #bfecff 48%, #e0e7ff 100%) !important;
}

/* Bottom previous/next navigation buttons: rounded, light gradient background. */
body:not(.crl-home) .border-rectangle-button a,
body:not(.crl-home) .filled-rectangle-button a {
  border: 1px solid rgba(125, 211, 252, 0.72) !important;
  border-radius: 10px !important;
  color: #0f172a !important;
  background: linear-gradient(135deg, #f8fdff 0%, #dff7ff 48%, #eef2ff 100%) !important;
  box-shadow: 0 12px 28px rgba(14, 116, 144, 0.14) !important;
}

body:not(.crl-home) .border-rectangle-button a:hover,
body:not(.crl-home) .filled-rectangle-button a:hover {
  color: #020617 !important;
  background: linear-gradient(135deg, #e0faff 0%, #bfecff 48%, #e0e7ff 100%) !important;
  box-shadow: 0 16px 34px rgba(14, 116, 144, 0.2) !important;
  transform: translateY(-1px);
}


/* =========================================================
   Append-only patch: sidebar carousel, footer layout, and
   translucent grid cards. This block intentionally does not
   replace or remove any earlier rule from this file.
   ========================================================= */

/* 1) Similar Tutorials slider: keep navigation arrows inside the image box. */
body:not(.crl-home) .featured-posts .owl-carousel {
  position: relative !important;
  overflow: visible !important;
}

body:not(.crl-home) .featured-posts .owl-carousel .owl-stage-outer {
  position: relative !important;
  overflow: hidden !important;
  border-radius: 18px !important;
}

body:not(.crl-home) .featured-posts .featured-item {
  position: relative !important;
  overflow: hidden !important;
  border-radius: 18px !important;
  background: rgba(255, 255, 255, 0.055) !important;
}

body:not(.crl-home) .featured-posts .featured-item img {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  border-radius: 18px !important;
}

body:not(.crl-home) .featured-posts .owl-carousel .owl-nav {
  position: absolute !important;
  top: 50% !important;
  left: 0 !important;
  right: 0 !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 10px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  transform: translateY(-50%) !important;
  pointer-events: none !important;
  z-index: 5 !important;
}

body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-prev,
body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-next {
  position: relative !important;
  width: 42px !important;
  min-width: 42px !important;
  height: 42px !important;
  min-height: 42px !important;
  margin: 0 !important;
  padding: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: 1px solid rgba(226, 232, 240, 0.34) !important;
  border-radius: 50% !important;
  color: #ffffff !important;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.28), transparent 42%),
    rgba(3, 7, 18, 0.78) !important;
  box-shadow: 0 14px 34px rgba(2, 8, 23, 0.42) !important;
  backdrop-filter: blur(10px) !important;
  pointer-events: auto !important;
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
  line-height: 1 !important;
  text-indent: 0 !important;
  overflow: visible !important;
}

body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-prev:hover,
body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-next:hover {
  color: #07111f !important;
  background: linear-gradient(135deg, #e0faff 0%, #bfecff 48%, #e0e7ff 100%) !important;
  box-shadow: 0 16px 38px rgba(88, 213, 255, 0.28) !important;
}

body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-prev span,
body:not(.crl-home) .featured-posts .owl-carousel .owl-nav button.owl-next span {
  display: block !important;
  font-size: 30px !important;
  line-height: 34px !important;
  font-weight: 700 !important;
  transform: translateY(-2px) !important;
}

/* 2) Similar Tutorials slider dots: remove duplicate square backgrounds and keep clean spaced dots. */
body:not(.crl-home) .featured-posts .owl-carousel .owl-dots {
  position: absolute !important;
  top: -54px !important;
  right: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 9px !important;
  margin: 0 !important;
  padding: 0 !important;
  z-index: 4 !important;
}

body:not(.crl-home) .featured-posts .owl-carousel button.owl-dot,
body:not(.crl-home) .featured-posts .owl-carousel button.owl-dot.active {
  width: auto !important;
  min-width: 0 !important;
  height: auto !important;
  min-height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  outline: none !important;
  line-height: 1 !important;
  transform: none !important;
}

body:not(.crl-home) .featured-posts .owl-carousel button.owl-dot span {
  display: block !important;
  width: 9px !important;
  height: 9px !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 50% !important;
  background: rgba(226, 232, 240, 0.38) !important;
  box-shadow: 0 0 0 1px rgba(226, 232, 240, 0.1) !important;
  transition: width 0.2s ease, background 0.2s ease, box-shadow 0.2s ease !important;
}

body:not(.crl-home) .featured-posts .owl-carousel button.owl-dot.active span {
  width: 24px !important;
  border-radius: 999px !important;
  background: linear-gradient(90deg, #2fffd1, #58d5ff) !important;
  box-shadow: 0 0 18px rgba(88, 213, 255, 0.38) !important;
}

/* 3) Sidebar footer: image at left, copyright centered at right, license line below. */
body:not(.crl-home) #footer {
  display: grid !important;
  grid-template-columns: 108px minmax(0, 1fr) !important;
  grid-template-rows: auto auto !important;
  column-gap: 16px !important;
  row-gap: 10px !important;
  align-items: center !important;
  margin-top: 28px !important;
  padding-top: 22px !important;
  border-top: 1px solid rgba(255, 255, 255, 0.09) !important;
}

body:not(.crl-home) #footer > a {
  grid-column: 1 !important;
  grid-row: 1 !important;
  display: block !important;
  justify-self: start !important;
  align-self: center !important;
  margin-top: 10px !important;
  border: 0 !important;
}

body:not(.crl-home) #footer > a div {
  display: block !important;
  margin: 0 !important;
}

body:not(.crl-home) #footer img {
  width: 96px !important;
  height: 96px !important;
  max-width: 96px !important;
  min-width: 96px !important;
  display: block !important;
  object-fit: cover !important;
  margin: 0 !important;
  border-radius: 22px !important;
  border: 1px solid rgba(226, 232, 240, 0.2) !important;
  box-shadow: 0 18px 40px rgba(2, 8, 23, 0.34) !important;
}

body:not(.crl-home) #footer .copyright {
  grid-column: 2 !important;
  grid-row: 1 !important;
  align-self: center !important;
  justify-self: stretch !important;
  margin: 10px 0 0 !important;
  padding: 0 !important;
  text-align: center !important;
  color: transparent !important;
  font-size: 0 !important;
  line-height: 0 !important;
}

body:not(.crl-home) #footer .copyright::before {
  content: "© Abolfazl Mohammadijoo — Control & Robotics Tutorials.";
  display: block !important;
  color: rgba(248, 250, 252, 0.9) !important;
  font-family: var(--crl-font-display) !important;
  font-size: 0.84rem !important;
  font-weight: 800 !important;
  line-height: 1.45 !important;
  letter-spacing: -0.015em !important;
  text-align: center !important;
}

body:not(.crl-home) #footer::after {
  content: "Licensed for non-commercial educational use only. Commercial use requires permission.";
  grid-column: 1 / -1 !important;
  grid-row: 2 !important;
  display: block !important;
  width: 100% !important;
  margin: 0 !important;
  color: rgba(203, 213, 225, 0.78) !important;
  font-family: var(--crl-font-main) !important;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  line-height: 1.35 !important;
  text-align: center !important;
  white-space: nowrap !important;
}

/* 4) Course cards: keep the light page grid visible through translucent card surfaces. */
body:not(.crl-home) .page-heading,
body:not(.crl-home) .simple-post,
body:not(.crl-home) .contact-form,
body:not(.crl-home) .tables,
body:not(.crl-home) .section-heading {
  background:
    linear-gradient(rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.66)),
    linear-gradient(rgba(15, 23, 42, 0.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.038) 1px, transparent 1px),
    radial-gradient(circle at 94% 10%, rgba(88, 213, 255, 0.14), transparent 18rem) !important;
  background-size: auto, 32px 32px, 32px 32px, auto !important;
  background-position: center, 0 0, 0 0, center !important;
  backdrop-filter: blur(7px) !important;
}

body:not(.crl-home) .simple-post:hover,
body:not(.crl-home) .page-heading:hover {
  background:
    linear-gradient(rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0.6)),
    linear-gradient(rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 94% 10%, rgba(88, 213, 255, 0.18), transparent 18rem) !important;
  background-size: auto, 32px 32px, 32px 32px, auto !important;
}

/* Small sidebar widths: keep footer readable without horizontal overflow. */
@media (max-width: 460px) {
  body:not(.crl-home) #footer {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto auto auto !important;
    justify-items: center !important;
  }

  body:not(.crl-home) #footer > a,
  body:not(.crl-home) #footer .copyright,
  body:not(.crl-home) #footer::after {
    grid-column: 1 !important;
  }

  body:not(.crl-home) #footer > a {
    grid-row: 1 !important;
  }

  body:not(.crl-home) #footer .copyright {
    grid-row: 2 !important;
  }

  body:not(.crl-home) #footer::after {
    grid-row: 3 !important;
    white-space: normal !important;
  }
}


/* =========================================================
   Micro patch: sidebar footer image radius and wrapping license
   ========================================================= */

/* 1) Bottom sidebar author image: sharp-but-soft 4px corner radius. */
body:not(.crl-home) #footer img {
  border-radius: 4px !important;
}

/* 2) License line below the image: wrap when needed, never hide text, with 30px bottom space. */
body:not(.crl-home) #footer::after {
  white-space: normal !important;
  overflow: visible !important;
  text-overflow: clip !important;
  overflow-wrap: anywhere !important;
  word-break: normal !important;
  max-width: 100% !important;
  margin: 0 0 30px 0 !important;
  padding: 0 6px !important;
}

@media (max-width: 460px) {
  body:not(.crl-home) #footer::after {
    margin-bottom: 30px !important;
  }
}


/* =========================================================
   Final append-only patch: mobile hamburger background,
   larger sidebar author image, and bright header hover
   ========================================================= */

/* 1) Remove hamburger background on small laptops, tablets, and mobiles.
   main.css and earlier patches may create backgrounds on ::before/::after,
   so both pseudo-elements are neutralized here without changing the icon itself. */
@media (max-width: 1680px) {
  body:not(.crl-home) #sidebar .toggle,
  body:not(.crl-home) #sidebar .toggle:hover,
  body:not(.crl-home) #sidebar .toggle:focus {
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
  }

  body:not(.crl-home) #sidebar .toggle::before {
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
    border: 0 !important;
  }

  body:not(.crl-home) #sidebar .toggle::after {
    content: none !important;
    display: none !important;
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
    border: 0 !important;
  }
}

/* 2) Increase the author image in the sidebar footer by about 1.5x,
   while keeping the 4px radius from the previous accepted patch. */
body:not(.crl-home) #footer {
  grid-template-columns: 156px minmax(0, 1fr) !important;
  column-gap: 18px !important;
}

body:not(.crl-home) #footer img {
  width: 144px !important;
  height: 144px !important;
  max-width: 144px !important;
  min-width: 144px !important;
  border-radius: 4px !important;
}

/* Keep the larger image centered when the footer stacks on very narrow screens. */
@media (max-width: 460px) {
  body:not(.crl-home) #footer {
    grid-template-columns: 1fr !important;
    justify-items: center !important;
  }

  body:not(.crl-home) #footer img {
    width: 144px !important;
    height: 144px !important;
    max-width: 144px !important;
    min-width: 144px !important;
  }
}

/* 3) Header brand hover/focus: force a readable light color over the dark header.
   The broader #main link-hover rule is intentionally overridden here. */
body:not(.crl-home) #main #header .logo a,
body:not(.crl-home) #main #header .logo a:visited,
body:not(.crl-home) #main #header .logo a:hover,
body:not(.crl-home) #main #header .logo a:focus,
body:not(.crl-home) #main #header .logo a:active {
  color: #e8fbff !important;
  border-bottom: 0 !important;
  text-decoration: none !important;
  background: transparent !important;
}

body:not(.crl-home) #main #header .logo a:hover,
body:not(.crl-home) #main #header .logo a:focus {
  color: #ffffff !important;
  text-shadow:
    0 0 16px rgba(88, 213, 255, 0.5),
    0 0 28px rgba(47, 255, 209, 0.22) !important;
}



/* =========================================================
   Safe mobile/tablet readability + overflow patch
   Append-only. Keeps Mermaid/internal diagram font sizes unchanged.
   ========================================================= */

/* 1) Mermaid diagrams: center the diagram block and the generated SVG.
   No font-size rules are applied here. */
body:not(.crl-home) .mermaid {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  margin-left: auto !important;
  margin-right: auto !important;
  text-align: center !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
}

body:not(.crl-home) .mermaid svg {
  display: block !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* 2) Remove the background box behind the Similar Tutorials section. */
body:not(.crl-home) .featured-posts {
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
}

/* Keep the carousel/image cards styled, but do not paint the whole section. */
body:not(.crl-home) .featured-posts .heading {
  background: transparent !important;
}

/* 3) Mobile/tablet x-overflow prevention.
   This fixes likely overflow sources instead of scaling Mermaid text. */
@media (max-width: 1024px) {
  html,
  body,
  body:not(.crl-home),
  body:not(.crl-home) #wrapper,
  body:not(.crl-home) #main,
  body:not(.crl-home) #main > .inner {
    max-width: 100% !important;
    overflow-x: clip !important;
  }

  @supports not (overflow-x: clip) {
    html,
    body,
    body:not(.crl-home),
    body:not(.crl-home) #wrapper,
    body:not(.crl-home) #main,
    body:not(.crl-home) #main > .inner {
      overflow-x: hidden !important;
    }
  }

  body:not(.crl-home) #main > .inner {
    width: 100% !important;
    padding-left: max(16px, env(safe-area-inset-left)) !important;
    padding-right: max(16px, env(safe-area-inset-right)) !important;
  }

  body:not(.crl-home) .container,
  body:not(.crl-home) .container-fluid {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  body:not(.crl-home) .row {
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  body:not(.crl-home) [class*="col-"] {
    min-width: 0 !important;
    max-width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  body:not(.crl-home) .page-heading,
  body:not(.crl-home) .simple-post,
  body:not(.crl-home) .contact-form,
  body:not(.crl-home) .section-heading,
  body:not(.crl-home) .featured-posts,
  body:not(.crl-home) .default-table,
  body:not(.crl-home) .alternate-table,
  body:not(.crl-home) pre,
  body:not(.crl-home) table,
  body:not(.crl-home) mjx-container,
  body:not(.crl-home) .MathJax,
  body:not(.crl-home) .MathJax_Display,
  body:not(.crl-home) .diagram-wrapper,
  body:not(.crl-home) .mermaid {
    max-width: 100% !important;
  }

  body:not(.crl-home) pre,
  body:not(.crl-home) code,
  body:not(.crl-home) table,
  body:not(.crl-home) mjx-container,
  body:not(.crl-home) .MathJax,
  body:not(.crl-home) .MathJax_Display,
  body:not(.crl-home) .diagram-wrapper,
  body:not(.crl-home) .mermaid {
    overflow-x: auto !important;
  }

  body:not(.crl-home) img,
  body:not(.crl-home) video,
  body:not(.crl-home) canvas,
  body:not(.crl-home) iframe {
    max-width: 100% !important;
  }

  body:not(.crl-home) #header {
    width: auto !important;
    max-width: none !important;
  }

  body:not(.crl-home) #header .logo {
    min-width: 0 !important;
    overflow: hidden !important;
  }

  body:not(.crl-home) #header .logo a {
    min-width: 0 !important;
    max-width: 100% !important;
    white-space: normal !important;
  }
}

/* 4) Increase readable text sizes on tablet/mobile only.
   These selectors target normal lesson/sidebar text only.
   They intentionally avoid .mermaid, svg, code, pre, MathJax, and tables. */
@media (max-width: 1024px) {
  body:not(.crl-home) .down-content p,
  body:not(.crl-home) .simple-post p,
  body:not(.crl-home) .right-content p,
  body:not(.crl-home) .left-content p,
  body:not(.crl-home) .page-heading p,
  body:not(.crl-home) .simple-post li,
  body:not(.crl-home) .down-content li,
  body:not(.crl-home) .right-content li,
  body:not(.crl-home) .left-content li {
    font-size: 1.08rem !important;
    line-height: 1.86 !important;
  }

  body:not(.crl-home) #menu ul a,
  body:not(.crl-home) #menu ul span {
    font-size: 0.98rem !important;
    line-height: 1.48 !important;
  }

  body:not(.crl-home) #menu ul li h3 {
    font-size: 1.5rem !important;
    line-height: 1.22 !important;
  }

  body:not(.crl-home) #menu ul li h4 {
    font-size: 1.18rem !important;
    line-height: 1.28 !important;
  }

  body:not(.crl-home) #menu ul li h6 {
    font-size: 1.05rem !important;
    line-height: 1.38 !important;
  }
}

@media (max-width: 760px) {
  body:not(.crl-home) .down-content p,
  body:not(.crl-home) .simple-post p,
  body:not(.crl-home) .right-content p,
  body:not(.crl-home) .left-content p,
  body:not(.crl-home) .page-heading p,
  body:not(.crl-home) .simple-post li,
  body:not(.crl-home) .down-content li,
  body:not(.crl-home) .right-content li,
  body:not(.crl-home) .left-content li {
    font-size: 1.12rem !important;
    line-height: 1.9 !important;
  }

  body:not(.crl-home) #menu ul a,
  body:not(.crl-home) #menu ul span {
    font-size: 1.04rem !important;
    line-height: 1.55 !important;
  }

  body:not(.crl-home) #menu ul li h3 {
    font-size: 1.6rem !important;
  }

  body:not(.crl-home) #menu ul li h4 {
    font-size: 1.26rem !important;
  }

  body:not(.crl-home) #menu ul li h6 {
    font-size: 1.12rem !important;
  }

  body:not(.crl-home) .page-heading h1 {
    font-size: clamp(2.15rem, 9vw, 3rem) !important;
    line-height: 1.04 !important;
  }

  body:not(.crl-home) .simple-post h2 {
    font-size: clamp(1.65rem, 7vw, 2.25rem) !important;
    line-height: 1.14 !important;
  }

  body:not(.crl-home) .simple-post h3 {
    font-size: clamp(1.38rem, 5.6vw, 1.85rem) !important;
    line-height: 1.18 !important;
  }
}

/* 5) Extra small screens: neutralize decorative pseudo-elements that can leak horizontally. */
@media (max-width: 480px) {
  body:not(.crl-home) .simple-post h2 {
    padding-left: 14px !important;
  }

  body:not(.crl-home) .simple-post h2::before {
    width: 4px !important;
  }

  body:not(.crl-home) .featured-posts .owl-carousel .owl-dots {
    right: 4px !important;
  }

  body:not(.crl-home) .featured-posts .owl-carousel .owl-nav {
    left: 0 !important;
    right: 0 !important;
    padding-left: 6px !important;
    padding-right: 6px !important;
  }
}

/* =========================================================
   CaaT Academy lesson-page fixes
   Actual HTML selectors:
   - display formulas: h4.mathJax
   - MathJax version: v2 / TeX-MML-AM_CHTML
   - Similar Tutorials: #sidebar .featured-posts .owl-carousel
   Append to END of assets/css/styles.css
   ========================================================= */


/* ---------------------------------------------------------
   1) MathJax v2 formulas inside <h4 class="mathJax">
   Make long display equations horizontally scrollable.
   --------------------------------------------------------- */

body:not(.crl-home) h4.mathJax {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  box-sizing: border-box !important;

  overflow-x: auto !important;
  overflow-y: hidden !important;
  -webkit-overflow-scrolling: touch !important;
  overscroll-behavior-inline: contain !important;

  white-space: nowrap !important;
  text-align: left !important;

  margin: 1rem 0 !important;
  padding: 0.35rem 0 0.65rem 0 !important;
}

/* MathJax v2 display wrapper */
body:not(.crl-home) h4.mathJax .MathJax_Display {
  display: inline-block !important;
  width: auto !important;
  max-width: none !important;
  min-width: max-content !important;

  margin: 0 !important;
  padding: 0 !important;
  overflow: visible !important;

  text-align: left !important;
  white-space: nowrap !important;
}

/* MathJax v2 CommonHTML output */
body:not(.crl-home) h4.mathJax .MathJax,
body:not(.crl-home) h4.mathJax .MathJax_CHTML,
body:not(.crl-home) h4.mathJax .mjx-chtml {
  display: inline-block !important;
  max-width: none !important;
  min-width: max-content !important;
  overflow: visible !important;
  white-space: nowrap !important;
}

/* Do not let MathJax's internal generated boxes shrink */
body:not(.crl-home) h4.mathJax .MathJax_CHTML > *,
body:not(.crl-home) h4.mathJax .mjx-chtml > * {
  max-width: none !important;
}

/* Keep inline MathJax inside paragraphs from creating page-level overflow */
body:not(.crl-home) .simple-post p .MathJax,
body:not(.crl-home) .simple-post li .MathJax,
body:not(.crl-home) .simple-post strong .MathJax,
body:not(.crl-home) .simple-post p .MathJax_CHTML,
body:not(.crl-home) .simple-post li .MathJax_CHTML,
body:not(.crl-home) .simple-post strong .MathJax_CHTML {
  max-width: 100% !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  vertical-align: middle !important;
}

/* Visible scrollbar for long formulas */
body:not(.crl-home) h4.mathJax::-webkit-scrollbar {
  height: 8px;
}

body:not(.crl-home) h4.mathJax::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.08);
  border-radius: 999px;
}

body:not(.crl-home) h4.mathJax::-webkit-scrollbar-thumb {
  background: rgba(14, 116, 144, 0.5);
  border-radius: 999px;
}


/* ---------------------------------------------------------
   2) Similar Tutorials full sidebar-width fix
   Actual structure:
   #sidebar > .inner > .featured-posts > .owl-carousel
   --------------------------------------------------------- */

@media screen and (max-width: 1280px) {
  body:not(.crl-home) #sidebar > .inner .featured-posts {
    width: calc(100% + 60px) !important;
    max-width: calc(100% + 60px) !important;

    margin-left: -30px !important;
    margin-right: -30px !important;

    padding: 30px 0 36px 0 !important;
    box-sizing: border-box !important;

    overflow: hidden !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .heading {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: 30px !important;
    padding-right: 30px !important;
    box-sizing: border-box !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .owl-carousel,
  body:not(.crl-home) #sidebar > .inner .featured-posts .owl-stage-outer {
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    box-sizing: border-box !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .owl-stage-outer {
    border-radius: 0 !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .featured-item {
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    border-radius: 0 !important;
    box-sizing: border-box !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .featured-item img {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 0 !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .featured-item p {
    padding-left: 30px !important;
    padding-right: 30px !important;
    box-sizing: border-box !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .owl-carousel .owl-dots {
    right: 30px !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts .owl-carousel .owl-nav {
    left: 0 !important;
    right: 0 !important;
    padding-left: 10px !important;
    padding-right: 10px !important;
  }
}

@media screen and (max-width: 480px) {
  body:not(.crl-home) #sidebar,
  body:not(.crl-home) #sidebar > .inner {
    width: min(380px, 100vw) !important;
  }

  body:not(.crl-home) #sidebar.inactive {
    margin-left: calc(-1 * min(380px, 100vw)) !important;
  }

  body:not(.crl-home) #sidebar .toggle {
    left: min(380px, 100vw) !important;
  }

  body:not(.crl-home) #sidebar > .inner .featured-posts {
    width: calc(100% + 60px) !important;
    max-width: calc(100% + 60px) !important;
  }
}