/* ==========================================================================
   Classic & Modern — a site theme
   --------------------------------------------------------------------------
   Change the colours here and the whole site follows: buttons, links, borders,
   focus rings, hover states. You should not need to touch anything below this
   block to rebrand it.
   ========================================================================== */

:root {
    /* ---- Brand: the deep colour of the masthead and headings ---- */
    --brand:            #4A1A6B;   /* primary — headings, nav background     */
    --brand-deep:       #2D1B4E;   /* darker — body text on light surfaces   */
    --brand-light:      #9370DB;   /* lighter — subtle accents               */
    --brand-alt:        #800020;   /* the second colour in the masthead      */

    /* ---- Accent: the metallic used for emphasis and rules ---- */
    --accent:           #D4AF37;   /* primary accent — borders, highlights   */
    --accent-deep:      #B8860B;   /* pressed and hover states               */
    --accent-bright:    #FFD700;   /* the brightest note, used sparingly     */
    --accent-muted:     #C9B037;   /* quieter accent for large areas         */

    --highlight:        #FF9933;   /* a warm third colour, for callouts      */

    /* ---- Surfaces, from the page up ---- */
    --surface:          #FFF8DC;   /* page background                        */
    --surface-raised:   #FFFFF0;   /* cards sitting on the page              */
    --surface-tint:     #FFF9E6;   /* tinted panels and callouts             */
    --surface-bright:   #FFFEF7;   /* the lightest surface                   */

    --text:             #2C1810;   /* body text                              */
    --border:           #E3DAC9;   /* hairlines and card edges               */

    /* ---- Meaning, not decoration: keep these distinct from the brand ---- */
    --success:          #1B6E1B;
    --success-deep:     #355E3B;
    --success-muted:    #6B8E23;
    --warning:          #FF6B35;
    --danger:           #8B0000;
    --info:             #4682B4;
    --pink:             #E75480;
    --earth:            #A0522D;

    /* ---- Type ----
       The display face carries the character of this theme. Swap it and the
       whole personality changes, which is the point. Both faces are on Google
       Fonts; the stacks fall back to system serifs if they fail to load. */
    --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body:    'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-mono:    ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

    /* ---- Shape and depth ---- */
    --radius:       12px;
    --radius-sm:     8px;
    --shadow:       0 1px 2px color-mix(in srgb, var(--text) 6%, transparent), 0 8px 24px color-mix(in srgb, var(--text) 7%, transparent);
    --shadow-lg:    0 2px 6px color-mix(in srgb, var(--text) 8%, transparent), 0 18px 44px color-mix(in srgb, var(--text) 12%, transparent);

    /* ---- Layout ---- */
    --sidebar-width:   210px;
    --rightcol-width:  280px;
    --content-max:    1600px;
}

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

body {
  font-family: var(--font-body);
  /* The page ground comes from tokens, so a colourway actually changes it.
     This was hardcoded rgba plus a patterned SVG, which meant the one thing
     a buyer most wants to change was the one thing they could not. */
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-tint) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text);
  position: relative;
}



.site-nav {
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-alt) 50%, var(--brand-deep) 100%);
  padding: 1rem 2rem;
  box-shadow:
  0 4px 15px rgba(0,0,0,0.3),
  inset 0 1px 0 color-mix(in srgb, var(--accent) 30%, transparent),
  inset 0 -1px 0 color-mix(in srgb, var(--accent) 30%, transparent);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 2px solid var(--accent);
  background-image:
  repeating-linear-gradient(90deg,
  transparent,
  transparent 50px,
  color-mix(in srgb, var(--accent) 10%, transparent) 50px,
  color-mix(in srgb, var(--accent) 10%, transparent) 51px),
  linear-gradient(90deg, var(--brand) 0%, var(--brand-alt) 50%, var(--brand-deep) 100%);
}

.site-nav .nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-nav .logo {
  font-size: clamp(1.15rem, 0.95rem + 0.9vw, 1.6rem);
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  text-shadow:
  0 0 3px var(--brand-deep),
  0 1px 0 var(--brand-deep),
  2px 2px 4px rgba(0,0,0,0.5);
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  transform: translateZ(0);
}


.site-nav .logo span {
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.2rem);
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent-bright) 50%, transparent));
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: #FFFFFF;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.95rem;
  font-weight: 600;
  position: relative;
  border: 1px solid transparent;
  text-shadow:
  0 1px 3px rgba(0, 0, 0, 0.8),
  0 0 8px rgba(0, 0, 0, 0.4);
  transform: translateZ(0);
  will-change: transform, background-color;
  letter-spacing: 0.03em;
}

.site-nav a:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: var(--brand-deep);
  border: 2px solid var(--brand-deep);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 60%, transparent);
  transform: translateY(-3px) translateZ(0);
  text-shadow: 0 0 5px color-mix(in srgb, var(--accent) 40%, transparent);
}

.nav-menu {
  position: relative;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  color: #FFFFFF;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
  text-shadow:
  0 1px 3px rgba(0, 0, 0, 0.8),
  0 0 8px rgba(0, 0, 0, 0.4);
  transform: translateZ(0);
  will-change: transform, background-color;
  letter-spacing: 0.03em;
}

.dropdown-toggle:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: var(--brand-deep);
  border: 2px solid var(--brand-deep);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 60%, transparent);
  transform: translateY(-3px) translateZ(0);
  text-shadow: 0 0 5px color-mix(in srgb, var(--accent) 40%, transparent);
}

.dropdown-toggle:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: var(--brand-deep);
  border: 2px solid var(--brand-deep);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 40%, transparent);
  transform: translateY(-2px) translateZ(0);
  text-shadow: 0 0 2px color-mix(in srgb, var(--accent) 50%, transparent);
}

.dropdown-toggle::after {
  content: '▼';
  font-size: 0.7em;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown.active .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-content {
  display: none;
  position: absolute;
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-alt) 100%);
  min-width: 220px;
  box-shadow:
  0 10px 30px rgba(0,0,0,0.5),
  inset 0 1px 0 color-mix(in srgb, var(--accent) 50%, transparent);
  border-radius: 10px;
  z-index: 1001;
  margin-top: 0.5rem;
  padding: 0.75rem 0;
  max-height: 400px;
  overflow-y: auto;
  border: 2px solid var(--accent);
  background-image:
  repeating-linear-gradient(90deg,
  transparent,
  transparent 40px,
  color-mix(in srgb, var(--accent) 8%, transparent) 40px,
  color-mix(in srgb, var(--accent) 8%, transparent) 41px);
  backdrop-filter: blur(10px);
}

.dropdown.active .dropdown-content {
  display: block;
  animation: dropdownFade 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes dropdownFade {
from {
                opacity: 0;
                transform: translateY(-15px) translateZ(0);
            }
            to {
                opacity: 1;
                transform: translateY(0) translateZ(0);
            }
}

.dropdown-content a {
  color: #FFFFFF;
  padding: 0.85rem 1.5rem;
  text-decoration: none;
  display: block;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 0;
  border-left: 3px solid transparent;
  font-weight: 600;
  text-shadow:
  0 1px 3px rgba(0, 0, 0, 0.8),
  0 0 8px rgba(0, 0, 0, 0.4);
  letter-spacing: 0.02em;
}

.dropdown-content a:hover {
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 40%, transparent) 0%, color-mix(in srgb, var(--accent) 15%, transparent) 100%);
  color: var(--accent-bright);
  padding-left: 2rem;
  border-left: 3px solid var(--accent);
  box-shadow: inset 0 0 20px color-mix(in srgb, var(--accent) 30%, transparent);
  text-shadow: 0 0 10px color-mix(in srgb, var(--accent) 60%, transparent);
}

.dropdown-divider {
  height: 1px;
  background: color-mix(in srgb, var(--accent) 40%, transparent);
  margin: 0.5rem 0;
}

.collapsible-section {
  margin-bottom: 1rem;
}

.section-header {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-alt) 100%);
  color: white;
  padding: 1rem 1.5rem;
  cursor: pointer;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.section-header:hover {
  background: linear-gradient(135deg, var(--brand-light) 0%, var(--brand-alt) 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.section-header h2, .section-header h3 {
  margin: 0;
  color: white;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-toggle {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
  font-weight: bold;
}

.collapsible-section.active .section-toggle {
  transform: rotate(180deg);
}

.section-content {
  display: none;
  padding: 1.5rem;
  background: white;
  border-radius: 0 0 10px 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  margin-top: -10px;
}

.collapsible-section.active .section-content {
  display: block;
}

.collapsible-section.active .section-header {
  border-radius: 10px 10px 0 0;
}

.mobile-menu-toggle {
  display: none;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  border: 2px solid var(--brand-deep);
  color: var(--brand-deep);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.3rem;
  font-weight: 700;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px color-mix(in srgb, var(--accent) 40%, transparent);
}

.mobile-menu-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 60%, transparent);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  .site-nav ul {
    display: none;
                    flex-direction: column;
                    width: 100%;
                    gap: 0;
  }
  .site-nav ul.active {
    display: flex;
  }
  .site-nav .dropdown-content {
    position: static;
                    box-shadow: none;
                    background: color-mix(in srgb, var(--brand) 95%, transparent);
                    margin-left: 1rem;
  }
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem;
  position: relative;
  z-index: 1;
}


h1 {
  color: var(--brand);
  font-size: clamp(1.6rem, 1.05rem + 2.6vw, 2.8rem);
  margin-bottom: 1.5rem;
  text-align: center;
  text-shadow: 3px 3px 6px rgba(0,0,0,0.15);
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 1rem;
}

h1::after {
  content: '';
  display: block;
  width: 200px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin: 1rem auto 0;
}

h2 {
  color: var(--danger);
  font-size: clamp(1.35rem, 1.0rem + 1.7vw, 2rem);
  margin: 2.5rem 0 1.5rem;
  border-bottom: none;
  padding-bottom: 0.75rem;
  font-family: var(--font-body);
  font-weight: 700;
  position: relative;
  padding-left: 1.8rem;
}

h2::before {
  /* A small accent rule rather than an icon — platform-independent, and it
     does not date the way a decorative glyph does. */
  content: '';
  width: 1.1rem;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  position: absolute;
  left: 0;
  top: 0;
  font-size: 1.8rem;
}

h2::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--pink) 50%, transparent 100%);
  margin-top: 0.5rem;
}

h3 {
  color: var(--brand);
  font-size: clamp(1.15rem, 1.0rem + 0.75vw, 1.5rem);
  margin: 1.75rem 0 1rem;
  font-family: var(--font-body);
  font-weight: 600;
}

.card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, color-mix(in srgb, var(--surface-bright) 95%, transparent) 100%);
  border-radius: 15px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow:
  0 8px 25px rgba(0,0,0,0.12),
  inset 0 1px 0 rgba(255,255,255,0.8);
  border: 2px solid transparent;
  border-image: linear-gradient(135deg, var(--accent) 0%, var(--pink) 50%, var(--success-muted) 100%) 1;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, color-mix(in srgb, var(--success-muted) 8%, transparent) 0%, transparent 70%);
  pointer-events: none;
}


.card:hover {
  transform: translateY(-3px);
  box-shadow:
  0 12px 35px rgba(0,0,0,0.18),
  inset 0 1px 0 rgba(255,255,255,0.9);
  border-image: linear-gradient(135deg, var(--accent-bright) 0%, var(--brand-light) 50%, var(--success) 100%) 1;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2.5rem 0;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.5rem 0;
  background: var(--surface-raised);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
  0 5px 20px rgba(0,0,0,0.12),
  inset 0 1px 0 rgba(255,255,255,0.5);
  border: 2px solid var(--accent);
}

th {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-alt) 100%);
  color: var(--accent);
  padding: 1.25rem;
  text-align: left;
  font-weight: 700;
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 3px solid var(--accent);
  position: relative;
}

th::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-bright), transparent);
}

td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid color-mix(in srgb, var(--success-muted) 15%, transparent);
  transition: all 0.3s ease;
}

tr {
  transition: all 0.3s ease;
}

tbody tr:hover {
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent) 0%, color-mix(in srgb, var(--success-muted) 8%, transparent) 100%);
  transform: scale(1.01);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

tbody tr:last-child td {
  border-bottom: none;
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #eee;
}

tr:hover {
  background: var(--surface-tint);
}

.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: var(--brand-deep);
  text-decoration: none;
  border-radius: 25px;
  transition: all 0.3s ease;
  border: 2px solid var(--accent-deep);
  font-weight: 700;
  cursor: pointer;
  box-shadow:
  0 4px 15px color-mix(in srgb, var(--accent) 30%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow:
  0 8px 25px color-mix(in srgb, var(--accent) 50%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.5);
  border-color: var(--accent-bright);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-alt) 100%);
  color: var(--surface);
  border: 2px solid var(--brand);
  box-shadow:
  0 4px 15px color-mix(in srgb, var(--brand) 30%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  box-shadow:
  0 8px 25px color-mix(in srgb, var(--brand) 50%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-saffron {
  background: linear-gradient(135deg, var(--highlight) 0%, var(--warning) 100%);
  color: white;
  border: 2px solid var(--warning);
  box-shadow:
  0 4px 15px color-mix(in srgb, var(--highlight) 40%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-saffron:hover {
  box-shadow:
  0 8px 25px color-mix(in srgb, var(--highlight) 60%, transparent),
  inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  margin: 0.25rem;
}

.tag-beginner {
  background: color-mix(in srgb, var(--success) 22%, var(--surface-bright));
  color: var(--success-deep);
}

.tag-intermediate {
  background: color-mix(in srgb, var(--warning) 25%, var(--surface-bright));
  color: var(--earth);
}

.tag-advanced {
  background: var(--danger);
  color: var(--surface-bright);
}

.example-box {
  background: var(--surface-tint);
  border-left: 4px solid var(--highlight);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 10px 10px 0;
}

.example-box {
  background: linear-gradient(135deg, var(--surface-tint) 0%, var(--surface-bright) 100%);
  border-left: 5px solid var(--highlight);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 15px 15px 0;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  position: relative;
  overflow: hidden;
}


footer {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--brand-alt) 50%, var(--earth) 100%);
  color: var(--surface);
  text-align: center;
  padding: 3rem 2rem;
  margin-top: 4rem;
  border-top: 3px solid var(--accent);
  box-shadow:
  inset 0 1px 0 color-mix(in srgb, var(--accent) 30%, transparent),
  0 -5px 20px rgba(0,0,0,0.1);
  position: relative;
}


footer a {
  color: var(--accent-bright);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
  transition: all 0.3s ease;
}

footer a:hover {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

@media (max-width: 768px) {
  .site-nav .nav-container {
    flex-direction: column;
  }
  .site-nav ul {
    justify-content: center;
  }
  main {
    padding: 1.5rem;
  }
  main::before {
    font-size: 0.7rem;
                    letter-spacing: 0.3rem;
  }
  .card {
    padding: 1.5rem;
  }
  body::after {
    font-size: 1.2rem;
                    letter-spacing: 1.5rem;
  }
}

.toggle-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
}

.toggle {
  position: relative;
  width: 60px;
  height: 30px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ccc;
  transition: 0.4s;
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 4px;
  background: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background: var(--success);
}

input:checked + .slider:before {
  transform: translateX(30px);
}

.dropdown-toggle {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.dropdown-toggle:hover, .dropdown-toggle:focus, .dropdown-toggle:active {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.dropdown-content {
  border: none !important;
  outline: none !important;
}

.dropdown-content a {
  border: none !important;
  outline: none !important;
}

.dropdown-content a:hover, .dropdown-content a:focus {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.site-nav .logo:hover, .site-nav a:hover {
  border: none !important;
}

.site-nav a:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: var(--brand-deep);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 60%, transparent);
  transform: translateY(-3px) translateZ(0);
  text-shadow: 0 0 5px color-mix(in srgb, var(--accent) 40%, transparent);
}

.site-nav .logo, .site-nav a {
  border: none !important;
  outline: none !important;
}

.site-nav .logo:hover, .site-nav .logo:focus, .site-nav .logo:active, .site-nav a:hover, .site-nav a:focus, .site-nav a:active {
  border: none !important;
  outline: none !important;
}

.layout:has(.layout-sidebar):has(.layout-rightcol) {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) 280px;
  gap: 1.5rem;
  max-width: 1600px;
  margin: 0 auto;
  align-items: start;
}

.layout:has(.layout-sidebar):not(:has(.layout-rightcol)) {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 1.5rem;
  max-width: 1500px;
  margin: 0 auto;
  align-items: start;
}

.layout:not(:has(.layout-sidebar)):has(.layout-rightcol) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.5rem;
  max-width: 1500px;
  margin: 0 auto;
  align-items: start;
}

.layout:has(.layout-sidebar) > main, .layout:has(.layout-rightcol) > main {
  max-width: none;
  margin: 0;
  width: auto;
  min-width: 0;
}

.table-scroll {
  overflow-x: auto;
}

@media (max-width: 1200px) {
  .layout:has(.layout-sidebar):has(.layout-rightcol) {
    grid-template-columns: 210px minmax(0, 1fr);
  }
  .layout:has(.layout-sidebar):has(.layout-rightcol) > .layout-rightcol {
    grid-column: 1 / -1;
  }
  .layout:has(.layout-rightcol) > .layout-rightcol {
    flex-direction: row;
            flex-wrap: wrap;
  }
  .layout-rightcol .card {
    flex: 1 1 220px;
  }
}

@media (max-width: 900px) {
  .layout:has(.layout-sidebar):has(.layout-rightcol), .layout:has(.layout-sidebar):not(:has(.layout-rightcol)), .layout:not(:has(.layout-sidebar)):has(.layout-rightcol) {
    grid-template-columns: 1fr;
  }
  .layout:has(.layout-sidebar):has(.layout-rightcol) > .layout-rightcol {
    grid-column: auto;
  }
  .layout > main {
    order: -1;
  }
  .layout-sidebar {
    order: 1;
  }
  .layout-rightcol {
    order: 2;
  }
}

.layout-sidebar {
  position: sticky;
  top: 90px;
  align-self: start;
}

.sidebar-title {
  color: var(--brand);
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.sidebar-nav {
  display: flex; flex-direction: column; gap: 0.25rem;
}

.sidebar-nav a {
  display: block;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}

.sidebar-nav a:hover {
  background: color-mix(in srgb, var(--brand) 7%, transparent);
}

.sidebar-nav a.active {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.layout-rightcol {
  display: flex; flex-direction: column; gap: 1rem;
}

.layout-rightcol .card {
  margin: 0;
}

.rightcol-visual {
  font-size: 3.5rem; line-height: 1; padding: 0.5rem 0 1rem;
}

@media (max-width: 900px) {
  .layout-sidebar {
    position: static;
  }
}

img, svg, video, iframe, canvas {
  max-width: 100%;
  height: auto;
}

body {
  overflow-wrap: break-word;
  word-wrap: break-word;
  overflow-x: hidden;
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
}

@media (max-width: 768px) {
  .table-scroll table {
    min-width: 480px;
            margin: 1rem 0;
  }
  .table-scroll th, .table-scroll td {
    padding: 0.85rem 0.9rem;
            font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  main {
    padding: 1.1rem 1rem;
  }
  main::before {
    font-size: 0.6rem;
            letter-spacing: 0.2rem;
  }
  .site-nav {
    padding: 0.85rem 1rem;
  }
}

.divider {
  content: '◆ ❖ ◆ ❖ ◆ ❖ ◆ ❖ ◆ ❖ ◆ ❖ ◆ ❖ ◆';
  display: block;
  text-align: center;
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  opacity: 0.6;
  letter-spacing: 0.5rem;
}

/* ==========================================================================
   Additions: the pieces a real page needs that the application did not have.
   ========================================================================== */

/* ---- Long-form text ---- */
.lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--brand-deep);
}

blockquote {
    margin: 2rem 0;
    padding: 0.5rem 0 0.5rem 1.75rem;
    border-left: 3px solid var(--accent);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--brand-deep);
}

main ul, main ol {
    margin: 0 0 1.5rem 1.5rem;
    padding: 0;
}
main li { margin-bottom: 0.5rem; }
main li::marker { color: var(--accent-deep); }
main ul ul, main ol ol { margin-top: 0.5rem; }

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.15em 0.4em;
    border-radius: 4px;
    background: var(--surface-tint);
    border: 1px solid var(--border);
}

/* ---- Forms ----
   Focus states matter more than they look. A keyboard user who cannot see
   where they are on a form cannot complete it. */
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.1rem; }

.field label {
    font-weight: 600;
    color: var(--brand-deep);
    font-size: 0.95rem;
}

.field input,
.field select,
.field textarea {
    font: inherit;
    font-size: 1rem;
    color: var(--text);
    background: var(--surface-bright);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.75rem;
    width: 100%;
    transition: border-color .18s, box-shadow .18s;
}

.field textarea { resize: vertical; min-height: 7rem; }

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}

.field input:user-invalid,
.field textarea:user-invalid { border-color: var(--danger); }

.form-note {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--surface-tint);
    border-left: 3px solid var(--success);
    font-size: 0.95rem;
}

/* ---- Anything focusable gets a visible ring ---- */
a:focus-visible,
button:focus-visible,
.section-header:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--accent-deep);
    outline-offset: 3px;
    border-radius: 3px;
}

/* ---- Respect a reduced-motion preference ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
}