@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --mt-bg:            hsl(220, 20%, 4%);
  --mt-surface:       hsl(220, 20%, 7%);
  --mt-surface-2:     hsl(220, 20%, 10%);
  --mt-surface-3:     hsl(220, 20%, 13%);

  --mt-border:        hsl(220, 15%, 14%);
  --mt-border-mid:    hsl(220, 15%, 18%);
  --mt-border-bright: hsl(220, 15%, 24%);

  --mt-fg:            hsl(142, 70%, 70%);
  --mt-fg-bright:     hsl(142, 80%, 82%);
  --mt-fg-dim:        hsl(220, 10%, 50%);
  --mt-fg-faint:      hsl(220, 10%, 35%);
  --mt-fg-inverse:    hsl(220, 20%, 4%);

  --mt-primary:       hsl(142, 70%, 55%);
  --mt-primary-glow:  hsl(142, 70%, 55%, 0.35);
  --mt-error:         hsl(0,   72%, 55%);
  --mt-error-glow:    hsl(0,   72%, 55%, 0.35);
  --mt-warning:       hsl(45,  90%, 55%);
  --mt-warning-glow:  hsl(45,  90%, 55%, 0.35);
  --mt-info:          hsl(185, 70%, 55%);
  --mt-info-glow:     hsl(185, 70%, 55%, 0.35);
  --mt-accent:        hsl(265, 70%, 65%);
  --mt-accent-glow:   hsl(265, 70%, 65%, 0.35);

  --mt-secondary:     hsl(220, 15%, 12%);
  --mt-muted:         hsl(220, 15%, 12%);

  --mt-sp-1: 0.25rem;  --mt-sp-2: 0.5rem;   --mt-sp-3: 0.75rem;
  --mt-sp-4: 1rem;     --mt-sp-5: 1.25rem;  --mt-sp-6: 1.5rem;
  --mt-sp-8: 2rem;

  --mt-r-sm: 0.125rem; --mt-r: 0.25rem;
  --mt-r-md: 0.375rem; --mt-r-lg: 0.5rem; --mt-r-xl: 0.75rem;

  --mt-font: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --mt-shadow-sm: 0 1px 4px hsl(220 20% 2% / 0.7);
  --mt-shadow-md: 0 4px 14px hsl(220 20% 2% / 0.75);
  --mt-shadow-lg: 0 10px 28px hsl(220 20% 2% / 0.85);

  --mt-t:      0.15s ease;
  --mt-t-fast: 0.08s ease;
  --mt-t-slow: 0.3s ease;

  --mt-sidebar-width: 240px;
  --mt-glow-intensity: 0.35;
  --mt-dim-opacity: 0.5;
  --mt-faint-opacity: 0.3;
  
  container-type: inline-size;
}


/* ================================================================
   2. BASE
   ================================================================ */

.mt-root, .mt-root * { box-sizing: border-box; margin: 0; }
.mt-root {
  font-family: var(--mt-font);
  font-size: 0.875rem;
  line-height: 1.6;
  background: var(--mt-bg);
  color: var(--mt-fg);
  -webkit-font-smoothing: antialiased;
}
.mt-root ::-webkit-scrollbar       { width: 6px; height: 6px; }
.mt-root ::-webkit-scrollbar-track { background: var(--mt-bg); }
.mt-root ::-webkit-scrollbar-thumb { background: var(--mt-border); border-radius: 3px; }
.mt-root ::-webkit-scrollbar-thumb:hover { background: var(--mt-border-bright); }


/* ================================================================
   3. ANIMATIONS
   ================================================================ */

@keyframes mt-blink  { 0%,49%{opacity:1} 50%,100%{opacity:0} }
@keyframes mt-pulse  { 0%,100%{opacity:1} 50%{opacity:.35} }
@keyframes mt-spin   { to{transform:rotate(360deg)} }
@keyframes mt-fade-in{ from{opacity:0;transform:translateY(4px)} to{opacity:1;transform:translateY(0)} }
@keyframes mt-slide-in{ from{opacity:0;transform:translateX(-8px)} to{opacity:1;transform:translateX(0)} }
@keyframes mt-scanline-move { 0%{transform:translateY(-100%)} 100%{transform:translateY(100vh)} }
@keyframes mt-skeleton{ 0%{background-position:-200% 0} 100%{background-position:200% 0} }
@keyframes mt-progress-ind { 0%{left:-40%;width:40%} 60%,100%{left:100%;width:40%} }
@keyframes mt-glow-pulse { 0%,100%{box-shadow:0 0 8px var(--mt-primary-glow)} 50%{box-shadow:0 0 20px var(--mt-primary-glow)} }

.mt-cursor::after      { content:'█'; animation:mt-blink 1s step-end infinite; color:var(--mt-primary); margin-left:1px; }
.mt-cursor-line::after { content:'_'; animation:mt-blink 1s step-end infinite; color:var(--mt-primary); }
.mt-cursor-pipe::after { content:'|'; animation:mt-blink .9s step-end infinite; color:var(--mt-primary); font-weight:300; }

.mt-scanline { position:relative; overflow:hidden; }
.mt-scanline::after {
  content:''; position:absolute; inset:0; pointer-events:none; z-index:50;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, hsl(220 20% 4%/.06) 2px, hsl(220 20% 4%/.06) 4px);
}

.mt-crt-sweep { position:relative; overflow:hidden; }
.mt-crt-sweep::before {
  content:''; position:absolute; left:0; right:0; height:3px; z-index:51;
  background:linear-gradient(to right, transparent, hsl(142 70% 55%/.04), transparent);
  animation: mt-scanline-move 8s linear infinite;
  pointer-events:none;
}

.mt-animate-in  { animation: mt-fade-in .2s ease both; }
.mt-slide-in    { animation: mt-slide-in .2s ease both; }
.mt-pulse-anim  { animation: mt-pulse 2s ease-in-out infinite; }
.mt-spin-anim   { animation: mt-spin .7s linear infinite; }


/* ================================================================
   4. TYPOGRAPHY
   ================================================================ */

.mt-text-xs   { font-size: 0.65rem; }
.mt-text-sm   { font-size: 0.75rem; }
.mt-text-base { font-size: 0.875rem; }
.mt-text-lg   { font-size: 1rem; }
.mt-text-xl   { font-size: 1.25rem; }
.mt-text-2xl  { font-size: 1.5rem; }
.mt-text-3xl  { font-size: 2rem; }

.mt-font-light    { font-weight: 300; }
.mt-font-normal   { font-weight: 400; }
.mt-font-medium   { font-weight: 500; }
.mt-font-semibold { font-weight: 600; }
.mt-font-bold     { font-weight: 700; }

.mt-italic   { font-style: italic; }
.mt-upper    { text-transform: uppercase; }
.mt-tabular  { font-variant-numeric: tabular-nums lining-nums; }
.mt-tracking-wide   { letter-spacing: 0.05em; }
.mt-tracking-wider  { letter-spacing: 0.1em; }
.mt-tracking-widest { letter-spacing: 0.15em; }
.mt-truncate { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.mt-mono     { font-family: var(--mt-font); font-variant-numeric: tabular-nums; }

.mt-heading {
  font-size: 1rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--mt-fg-bright);
}
.mt-subheading {
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--mt-primary);
}
.mt-label {
  font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--mt-fg-dim);
}
.mt-caption {
  font-size: 0.65rem;
  color: var(--mt-fg-faint); letter-spacing: 0.03em;
}

.mt-fg-bright { color: var(--mt-fg-bright); }
.mt-fg-dim    { color: var(--mt-fg-dim); }
.mt-fg-faint  { color: var(--mt-fg-faint); }
.mt-primary   { color: var(--mt-primary); }
.mt-error     { color: var(--mt-error); }
.mt-warning   { color: var(--mt-warning); }
.mt-info      { color: var(--mt-info); }
.mt-accent    { color: var(--mt-accent); }

.mt-glow-primary { text-shadow: 0 0 10px var(--mt-primary-glow); }
.mt-glow-error   { text-shadow: 0 0 10px var(--mt-error-glow); }
.mt-glow-warning { text-shadow: 0 0 10px var(--mt-warning-glow); }
.mt-glow-info    { text-shadow: 0 0 10px var(--mt-info-glow); }
.mt-glow-accent  { text-shadow: 0 0 10px var(--mt-accent-glow); }

.mt-code {
  font-family: var(--mt-font); font-size: 0.82em;
  background: var(--mt-surface-2); border: 1px solid var(--mt-border);
  border-radius: 2px; padding: 0.1em 0.35em; color: var(--mt-info);
}


/* ================================================================
   5. LAYOUT UTILITIES
   ================================================================ */

.mt-flex         { display: flex; }
.mt-inline-flex  { display: inline-flex; }
.mt-flex-col     { display: flex; flex-direction: column; }
.mt-flex-row     { display: flex; flex-direction: row; }
.mt-flex-wrap    { flex-wrap: wrap; }
.mt-items-start  { align-items: flex-start; }
.mt-items-center { align-items: center; }
.mt-items-end    { align-items: flex-end; }
.mt-items-stretch{ align-items: stretch; }
.mt-justify-start   { justify-content: flex-start; }
.mt-justify-center  { justify-content: center; }
.mt-justify-end     { justify-content: flex-end; }
.mt-justify-between { justify-content: space-between; }
.mt-flex-1       { flex: 1; }
.mt-shrink-0     { flex-shrink: 0; }

.mt-grid   { display: grid; }
.mt-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); }
.mt-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); }
.mt-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); }

.mt-gap-1 { gap: var(--mt-sp-1); } .mt-gap-2 { gap: var(--mt-sp-2); }
.mt-gap-3 { gap: var(--mt-sp-3); } .mt-gap-4 { gap: var(--mt-sp-4); }
.mt-gap-6 { gap: var(--mt-sp-6); }

.mt-p-2 { padding: var(--mt-sp-2); } .mt-p-3 { padding: var(--mt-sp-3); }
.mt-p-4 { padding: var(--mt-sp-4); } .mt-p-6 { padding: var(--mt-sp-6); }
.mt-px-3 { padding-left: var(--mt-sp-3); padding-right: var(--mt-sp-3); }
.mt-px-4 { padding-left: var(--mt-sp-4); padding-right: var(--mt-sp-4); }
.mt-py-2 { padding-top: var(--mt-sp-2); padding-bottom: var(--mt-sp-2); }
.mt-py-3 { padding-top: var(--mt-sp-3); padding-bottom: var(--mt-sp-3); }
.mt-mt-2 { margin-top: var(--mt-sp-2); } .mt-mt-3 { margin-top: var(--mt-sp-3); }
.mt-mt-4 { margin-top: var(--mt-sp-4); } .mt-mb-4 { margin-bottom: var(--mt-sp-4); }
.mt-ml-auto { margin-left: auto; }

.mt-w-full   { width: 100%; }
.mt-max-w-sm { max-width: 24rem; } .mt-max-w-md { max-width: 32rem; }
.mt-max-w-lg { max-width: 48rem; } .mt-max-w-xl { max-width: 64rem; }

.mt-relative { position: relative; } .mt-absolute { position: absolute; }
.mt-fixed    { position: fixed; }    .mt-sticky   { position: sticky; }
.mt-inset-0  { inset: 0; }

.mt-overflow-hidden { overflow: hidden; }
.mt-overflow-auto   { overflow: auto; }
.mt-overflow-x-auto { overflow-x: auto; }

.mt-text-left   { text-align: left; }
.mt-text-center { text-align: center; }
.mt-text-right  { text-align: right; }


/* ================================================================
   6. CARDS & PANELS
   ================================================================ */

.mt-card {
  background: var(--mt-surface);
  border: 1px solid var(--mt-border);
  border-radius: var(--mt-r);
  padding: var(--mt-sp-4);
  box-shadow: var(--mt-shadow-sm);
}
.mt-card-sm { padding: var(--mt-sp-3); }
.mt-card-lg { padding: var(--mt-sp-6); }

.mt-card-glow-primary { border-color: color-mix(in srgb, var(--mt-primary) 35%, transparent); box-shadow: var(--mt-shadow-sm), 0 0 20px color-mix(in srgb, var(--mt-primary) 10%, transparent); }
.mt-card-glow-error   { border-color: color-mix(in srgb, var(--mt-error) 35%, transparent); box-shadow: var(--mt-shadow-sm), 0 0 20px color-mix(in srgb, var(--mt-error) 10%, transparent); }
.mt-card-glow-warning { border-color: color-mix(in srgb, var(--mt-warning) 35%, transparent); box-shadow: var(--mt-shadow-sm), 0 0 20px color-mix(in srgb, var(--mt-warning) 10%, transparent); }
.mt-card-glow-info    { border-color: color-mix(in srgb, var(--mt-info) 35%, transparent); box-shadow: var(--mt-shadow-sm), 0 0 20px color-mix(in srgb, var(--mt-info) 10%, transparent); }

.mt-card-header {
  display: flex; align-items: center; gap: var(--mt-sp-2);
  padding-bottom: var(--mt-sp-3); margin-bottom: var(--mt-sp-3);
  border-bottom: 1px solid var(--mt-border);
}
.mt-card-footer {
  display: flex; align-items: center; gap: var(--mt-sp-2);
  padding-top: var(--mt-sp-3); margin-top: var(--mt-sp-3);
  border-top: 1px solid var(--mt-border);
}
.mt-card-title {
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--mt-primary);
}
.mt-card-subtitle { font-size: 0.65rem; color: var(--mt-fg-faint); margin-top: 2px; }

.mt-panel { background: var(--mt-surface); border: 1px solid var(--mt-border); border-radius: var(--mt-r); overflow: hidden; }
.mt-inset { background: var(--mt-bg); border: 1px solid var(--mt-border); border-radius: var(--mt-r-sm); padding: var(--mt-sp-3); }


/* ================================================================
   7. BUTTONS
   ================================================================ */

.mt-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--mt-sp-2);
  font-family: var(--mt-font); font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: var(--mt-r); border: 1px solid transparent;
  padding: 0.4rem 0.875rem;
  cursor: pointer; transition: all var(--mt-t);
  text-decoration: none; white-space: nowrap; user-select: none;
}
.mt-btn:disabled { opacity: 0.35; cursor: not-allowed; pointer-events: none; }
.mt-btn:focus-visible { outline: 2px solid var(--mt-primary); outline-offset: 2px; }

/* Sizes */
.mt-btn-xs  { font-size: 0.6rem;  padding: 0.2rem 0.5rem; }
.mt-btn-sm  { font-size: 0.62rem; padding: 0.3rem 0.625rem; }
.mt-btn-md  { /* default */ }
.mt-btn-lg  { font-size: 0.72rem; padding: 0.55rem 1.25rem; }
.mt-btn-xl  { font-size: 0.8rem;  padding: 0.7rem 1.75rem; }
.mt-btn-icon{ padding: 0.4rem; width: 2rem; height: 2rem; }
.mt-btn-icon.mt-btn-sm { width: 1.6rem; height: 1.6rem; padding: 0.25rem; }
.mt-btn-icon.mt-btn-lg { width: 2.5rem; height: 2.5rem; padding: 0.55rem; }

.mt-btn-primary { background: var(--mt-primary); color: var(--mt-fg-inverse); border-color: var(--mt-primary); box-shadow: 0 0 10px var(--mt-primary-glow); }
.mt-btn-primary:hover:not(:disabled) { filter: brightness(1.12); box-shadow: 0 0 18px var(--mt-primary-glow); }
.mt-btn-primary:active:not(:disabled){ filter: brightness(0.88); box-shadow: none; }

.mt-btn-outline { background: transparent; color: var(--mt-primary); border-color: var(--mt-primary); }
.mt-btn-outline:hover:not(:disabled) { background: color-mix(in srgb, var(--mt-primary) 10%, transparent); box-shadow: 0 0 10px var(--mt-primary-glow); }

.mt-btn-ghost { background: transparent; color: var(--mt-fg-dim); border-color: transparent; }
.mt-btn-ghost:hover:not(:disabled) { background: var(--mt-secondary); color: var(--mt-fg); border-color: var(--mt-border); }

.mt-btn-secondary { background: var(--mt-surface-2); color: var(--mt-fg); border-color: var(--mt-border-mid); }
.mt-btn-secondary:hover:not(:disabled) { background: var(--mt-surface-3); border-color: var(--mt-border-bright); }

.mt-btn-danger { background: transparent; color: var(--mt-error); border-color: var(--mt-error); }
.mt-btn-danger:hover:not(:disabled) { background: color-mix(in srgb, var(--mt-error) 12%, transparent); box-shadow: 0 0 10px var(--mt-error-glow); }

.mt-btn-danger-solid { background: var(--mt-error); color: #fff; border-color: var(--mt-error); }
.mt-btn-danger-solid:hover:not(:disabled) { background: hsl(0,72%,62%); }

.mt-btn-warning { background: transparent; color: var(--mt-warning); border-color: var(--mt-warning); }
.mt-btn-warning:hover:not(:disabled) { background: color-mix(in srgb, var(--mt-warning) 10%, transparent); }

.mt-btn-info { background: transparent; color: var(--mt-info); border-color: var(--mt-info); }
.mt-btn-info:hover:not(:disabled) { background: color-mix(in srgb, var(--mt-info) 10%, transparent); }

/* Button group */
.mt-btn-group { display: inline-flex; }
.mt-btn-group .mt-btn { border-radius: 0; }
.mt-btn-group .mt-btn:first-child { border-radius: var(--mt-r) 0 0 var(--mt-r); }
.mt-btn-group .mt-btn:last-child  { border-radius: 0 var(--mt-r) var(--mt-r) 0; }
.mt-btn-group .mt-btn:not(:first-child) { border-left-width: 0; }
.mt-btn-group .mt-btn:not(:first-child):hover { border-left-width: 1px; margin-left: -1px; }

/* Loading */
.mt-btn-loading::before {
  content: ''; display: inline-block; width: .7em; height: .7em; flex-shrink: 0;
  border: 1.5px solid currentColor; border-top-color: transparent;
  border-radius: 50%; animation: mt-spin .7s linear infinite;
}


/* ================================================================
   8. FORM INPUTS
   ================================================================ */

/* Base input */
.mt-input {
  font-family: var(--mt-font); font-size: 0.8rem;
  background: var(--mt-surface); color: var(--mt-fg);
  border: 1px solid var(--mt-border-mid); border-radius: var(--mt-r);
  padding: 0.4rem 0.75rem; width: 100%; outline: none;
  transition: border-color var(--mt-t), box-shadow var(--mt-t);
  appearance: none; -webkit-appearance: none;
  caret-color: var(--mt-primary);
}
.mt-input::placeholder  { color: var(--mt-fg-faint); }
.mt-input:hover:not(:disabled):not(:focus) { border-color: var(--mt-border-bright); }
.mt-input:focus { border-color: var(--mt-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-primary) 18%, transparent); }
.mt-input:disabled { opacity: 0.4; cursor: not-allowed; }
.mt-input[readonly] { background: hsl(220,20%,5%); color: var(--mt-fg-dim); }

/* Input sizes */
.mt-input-sm { font-size: 0.7rem; padding: 0.25rem 0.5rem; }
.mt-input-lg { font-size: 0.875rem; padding: 0.55rem 1rem; }
.mt-input-xl { font-size: 1rem; padding: 0.7rem 1.25rem; }

/* Input states */
.mt-input-error   { border-color: var(--mt-error)   !important; box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-error) 18%, transparent) !important; }
.mt-input-warning { border-color: var(--mt-warning)  !important; box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-warning) 18%, transparent) !important; }
.mt-input-success { border-color: var(--mt-primary) !important; }

/* Textarea */
.mt-textarea {
  font-family: var(--mt-font); font-size: 0.8rem;
  background: var(--mt-surface); color: var(--mt-fg);
  border: 1px solid var(--mt-border-mid); border-radius: var(--mt-r);
  padding: 0.5rem 0.75rem; width: 100%; outline: none; resize: vertical;
  min-height: 80px; line-height: 1.65;
  transition: border-color var(--mt-t), box-shadow var(--mt-t);
  caret-color: var(--mt-primary);
}
.mt-textarea::placeholder { color: var(--mt-fg-faint); }
.mt-textarea:focus { border-color: var(--mt-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-primary) 18%, transparent); }

/* Select */
.mt-select {
  font-family: var(--mt-font); font-size: 0.8rem;
  background: var(--mt-surface); color: var(--mt-fg);
  border: 1px solid var(--mt-border-mid); border-radius: var(--mt-r);
  padding: 0.4rem 2rem 0.4rem 0.75rem; width: 100%; outline: none;
  cursor: pointer; appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2344a065' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .6rem center;
  transition: border-color var(--mt-t), box-shadow var(--mt-t);
}
.mt-select:focus { border-color: var(--mt-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-primary) 18%, transparent); }
.mt-select option { background: var(--mt-surface-3); color: var(--mt-fg); }

/* Input group (addons) */
.mt-input-group { display: flex; align-items: stretch; }
.mt-input-group .mt-input { border-radius: 0; flex: 1; }
.mt-input-group .mt-input:first-child { border-radius: var(--mt-r) 0 0 var(--mt-r); }
.mt-input-group .mt-input:last-child  { border-radius: 0 var(--mt-r) var(--mt-r) 0; }

.mt-input-addon {
  display: inline-flex; align-items: center; padding: 0 0.75rem;
  background: var(--mt-surface-2); border: 1px solid var(--mt-border-mid);
  color: var(--mt-fg-dim); font-size: 0.8rem; white-space: nowrap; flex-shrink: 0;
}
.mt-input-addon-left  { border-right: none; border-radius: var(--mt-r) 0 0 var(--mt-r); }
.mt-input-addon-right { border-left:  none; border-radius: 0 var(--mt-r) var(--mt-r) 0; }

/* Terminal input ($) */
.mt-input-terminal-wrap { position: relative; display: flex; align-items: center; }
.mt-input-terminal-wrap::before {
  content: '$'; position: absolute; left: 0.625rem;
  color: var(--mt-primary); opacity: 0.65; font-size: 0.8rem;
  pointer-events: none; z-index: 1; font-family: var(--mt-font);
}
.mt-input-terminal {
  font-family: var(--mt-font); font-size: 0.8rem;
  background: hsl(220,20%,3%); color: var(--mt-fg-bright);
  border: 1px solid var(--mt-border-mid); border-radius: var(--mt-r);
  padding: 0.4rem 0.75rem 0.4rem 1.75rem; width: 100%; outline: none;
  transition: border-color var(--mt-t); caret-color: var(--mt-primary);
}
.mt-input-terminal::placeholder { color: var(--mt-fg-faint); }
.mt-input-terminal:focus { border-color: var(--mt-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--mt-primary) 18%, transparent); }

/* Checkbox */
.mt-checkbox {
  appearance: none; -webkit-appearance: none;
  width: 1rem; height: 1rem; flex-shrink: 0; position: relative;
  border: 1px solid var(--mt-border-mid); border-radius: var(--mt-r-sm);
  background: var(--mt-surface); cursor: pointer;
  transition: all var(--mt-t);
}
.mt-checkbox:hover { border-color: var(--mt-primary); }
.mt-checkbox:checked { background: var(--mt-primary); border-color: var(--mt-primary); }
.mt-checkbox:checked::after {
  content: ''; position: absolute; left: 3px; top: 1px;
  width: 5px; height: 8px;
  border: 2px solid var(--mt-fg-inverse); border-top: none; border-left: none;
  transform: rotate(45deg);
}
.mt-checkbox:focus-visible { outline: 2px solid var(--mt-primary); outline-offset: 2px; }

/* Radio */
.mt-radio {
  appearance: none; -webkit-appearance: none;
  width: 1rem; height: 1rem; flex-shrink: 0; position: relative;
  border: 1px solid var(--mt-border-mid); border-radius: 50%;
  background: var(--mt-surface); cursor: pointer; transition: all var(--mt-t);
}
.mt-radio:hover { border-color: var(--mt-primary); }
.mt-radio:checked { border-color: var(--mt-primary); }
.mt-radio:checked::after {
  content: ''; position: absolute; inset: 3px;
  background: var(--mt-primary); border-radius: 50%;
}

/* Toggle */
.mt-toggle       { display: inline-flex; align-items: center; gap: var(--mt-sp-2); cursor: pointer; user-select: none; }
.mt-toggle input { display: none; }
.mt-toggle-track {
  position: relative; width: 2.25rem; height: 1.125rem; flex-shrink: 0;
  background: var(--mt-secondary); border: 1px solid var(--mt-border-mid);
  border-radius: 9999px; transition: all var(--mt-t);
}
.mt-toggle-track::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: calc(1.125rem - 6px); height: calc(1.125rem - 6px);
  background: var(--mt-fg-faint); border-radius: 50%; transition: all var(--mt-t);
}
.mt-toggle input:checked ~ .mt-toggle-track { background: color-mix(in srgb, var(--mt-primary) 15%, transparent); border-color: var(--mt-primary); }
.mt-toggle input:checked ~ .mt-toggle-track::after {
  left: calc(100% - 2px - (1.125rem - 6px));
  background: var(--mt-primary); box-shadow: 0 0 6px var(--mt-primary-glow);
}
.mt-toggle-label { font-size: 0.8rem; color: var(--mt-fg-dim); }

/* Range slider */
.mt-range {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; background: var(--mt-secondary); border-radius: 2px; outline: none;
}
.mt-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--mt-primary); cursor: pointer;
  box-shadow: 0 0 6px var(--mt-primary-glow);
  transition: box-shadow var(--mt-t);
}
.mt-range::-webkit-slider-thumb:hover { box-shadow: 0 0 12px var(--mt-primary-glow); }
.mt-range::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; border: none;
  background: var(--mt-primary); cursor: pointer; box-shadow: 0 0 6px var(--mt-primary-glow);
}

/* Form field wrapper */
.mt-field      { display: flex; flex-direction: column; gap: var(--mt-sp-1); }
.mt-field-label{ font-size: 0.65rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mt-fg-dim); }
.mt-field-hint { font-size: 0.65rem; color: var(--mt-fg-faint); }
.mt-field-error{ font-size: 0.65rem; color: var(--mt-error); }
.mt-field-ok   { font-size: 0.65rem; color: var(--mt-primary); }

/* ================================================================
   9. BADGES & TAGS
   ================================================================ */

.mt-badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: 0.15rem 0.5rem; border-radius: 2px; border: 1px solid; white-space: nowrap;
}
.mt-badge-dot::before { content: '●'; font-size: 0.45rem; display: inline-block; }

.mt-badge-primary { color:var(--mt-primary); background:color-mix(in srgb, var(--mt-primary) 8%, transparent); border-color:color-mix(in srgb, var(--mt-primary) 30%, transparent); }
.mt-badge-error   { color:var(--mt-error);   background:color-mix(in srgb, var(--mt-error) 8%, transparent);   border-color:color-mix(in srgb, var(--mt-error) 30%, transparent); }
.mt-badge-warning { color:var(--mt-warning); background:color-mix(in srgb, var(--mt-warning) 8%, transparent); border-color:color-mix(in srgb, var(--mt-warning) 30%, transparent); }
.mt-badge-info    { color:var(--mt-info);    background:color-mix(in srgb, var(--mt-info) 8%, transparent);    border-color:color-mix(in srgb, var(--mt-info) 30%, transparent); }
.mt-badge-accent  { color:var(--mt-accent);  background:color-mix(in srgb, var(--mt-accent) 8%, transparent);  border-color:color-mix(in srgb, var(--mt-accent) 30%, transparent); }
.mt-badge-dim     { color:var(--mt-fg-dim);  background:var(--mt-secondary); border-color:var(--mt-border); }

.mt-badge-primary.mt-badge-dot::before { color:var(--mt-primary); animation:mt-blink 2s ease-in-out infinite; }
.mt-badge-warning.mt-badge-dot::before { color:var(--mt-warning); animation:mt-pulse 1.5s ease-in-out infinite; }
.mt-badge-info.mt-badge-dot::before    { color:var(--mt-info);    animation:mt-blink 1.5s ease-in-out infinite; }
.mt-badge-error.mt-badge-dot::before   { color:var(--mt-error); }

/* Tag */
.mt-tag {
  display: inline-flex; align-items: center; gap: var(--mt-sp-1);
  font-size: 0.65rem; padding: 0.15rem 0.4rem;
  border-radius: var(--mt-r-sm); background: var(--mt-surface-2);
  border: 1px solid var(--mt-border); color: var(--mt-fg-dim); cursor: default;
}
.mt-tag-close { cursor: pointer; opacity: 0.5; transition: opacity var(--mt-t); font-size: .7rem; line-height:1; }
.mt-tag-close:hover { opacity: 1; color: var(--mt-error); }

/* Pill */
.mt-pill {
  display: inline-flex; align-items: center; gap: var(--mt-sp-1);
  font-size: 0.65rem; font-weight: 500;
  padding: 0.2rem 0.6rem; border-radius: 9999px;
  border: 1px solid var(--mt-border); background: var(--mt-surface-2); color: var(--mt-fg-dim);
}


/* ================================================================
   10. TABLES
   ================================================================ */

.mt-table-wrap { width: 100%; overflow-x: auto; }
.mt-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.mt-table thead { border-bottom: 1px solid var(--mt-border); }
.mt-table th {
  text-align: left; font-size: 0.62rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--mt-fg-dim); padding: 0.5rem 0.875rem; white-space: nowrap;
}
.mt-table th.mt-sort { cursor: pointer; }
.mt-table th.mt-sort:hover { color: var(--mt-fg); }
.mt-table th.mt-sort-asc::after  { content: ' ↑'; color: var(--mt-primary); }
.mt-table th.mt-sort-desc::after { content: ' ↓'; color: var(--mt-primary); }
.mt-table td {
  padding: 0.5rem 0.875rem; border-bottom: 1px solid hsl(220,15%,9%);
  color: var(--mt-fg); font-variant-numeric: tabular-nums; vertical-align: middle;
}
.mt-table tr:last-child td { border-bottom: none; }
.mt-table tbody tr:hover td { background: color-mix(in srgb, var(--mt-primary) 3%, transparent); }
.mt-table tbody tr.mt-selected td { background: color-mix(in srgb, var(--mt-primary) 8%, transparent); }
.mt-table-striped tbody tr:nth-child(even) td { background: hsl(220 20% 5%/.5); }
.mt-table-compact td, .mt-table-compact th { padding: 0.3rem 0.75rem; }
.mt-table .mt-num { text-align: right; }


/* ================================================================
   11. TERMINAL & CODE
   ================================================================ */

.mt-terminal {
  background: var(--mt-bg); border: 1px solid var(--mt-border); border-radius: var(--mt-r);
  padding: 0.875rem 1rem; font-family: var(--mt-font); font-size: 0.8rem;
  line-height: 1.7; overflow-x: auto;
}
.mt-terminal-window { border: 1px solid var(--mt-border); border-radius: var(--mt-r); overflow: hidden; }
.mt-terminal-titlebar {
  display: flex; align-items: center; gap: var(--mt-sp-2);
  background: var(--mt-surface-2); border-bottom: 1px solid var(--mt-border);
  padding: 0.375rem 0.75rem;
}
.mt-terminal-dot { width: 8px; height: 8px; border-radius: 50%; }
.mt-terminal-dot-red   { background: hsl(0,  72%,55%); }
.mt-terminal-dot-amber { background: hsl(45, 90%,55%); }
.mt-terminal-dot-green { background: hsl(142,70%,55%); }
.mt-terminal-title { font-size: 0.65rem; color: var(--mt-fg-faint); letter-spacing: 0.05em; margin: 0 auto; }
.mt-terminal-body { background: var(--mt-bg); padding: 0.875rem 1rem; font-size: 0.8rem; line-height: 1.7; overflow-x: auto; }

.mt-terminal-line { display: flex; gap: var(--mt-sp-2); align-items: baseline; }
.mt-prompt    { color: var(--mt-primary); opacity: 0.55; user-select: none; flex-shrink: 0; }
.mt-prompt-2  { color: var(--mt-info);    opacity: 0.55; user-select: none; flex-shrink: 0; }
.mt-t-out     { color: hsl(142,70%,70%); }
.mt-t-err     { color: var(--mt-error); }
.mt-t-warn    { color: var(--mt-warning); }
.mt-t-info    { color: var(--mt-info); }
.mt-t-dim     { color: var(--mt-fg-faint); }
.mt-t-comment { color: var(--mt-fg-faint); font-style: italic; }
.mt-t-path    { color: var(--mt-info); }
.mt-t-num     { color: var(--mt-warning); font-variant-numeric: tabular-nums; }
.mt-t-key     { color: var(--mt-accent); }
.mt-t-str     { color: hsl(142,60%,65%); }
.mt-t-bool    { color: var(--mt-error); }

.mt-pre {
  background: var(--mt-bg); border: 1px solid var(--mt-border); border-radius: var(--mt-r);
  padding: 1rem; font-size: 0.8rem; line-height: 1.7;
  overflow-x: auto; color: var(--mt-fg); white-space: pre;
}


/* ================================================================
   12. PROGRESS & METERS
   ================================================================ */

.mt-progress { width: 100%; height: 4px; background: var(--mt-secondary); border-radius: 9999px; overflow: hidden; position: relative; }
.mt-progress-lg { height: 8px; }
.mt-progress-xl { height: 12px; }
.mt-progress-bar { height: 100%; border-radius: 9999px; transition: width .4s ease; }
.mt-progress-primary { background: var(--mt-primary); box-shadow: 0 0 8px var(--mt-primary-glow); }
.mt-progress-error   { background: var(--mt-error);   box-shadow: 0 0 8px var(--mt-error-glow); }
.mt-progress-warning { background: var(--mt-warning);  box-shadow: 0 0 8px var(--mt-warning-glow); }
.mt-progress-info    { background: var(--mt-info); }
.mt-progress-ind .mt-progress-bar { position: absolute; width: 40%; animation: mt-progress-ind 1.5s ease-in-out infinite; }

/* Segmented meter */
.mt-meter { display: flex; gap: 2px; align-items: flex-end; height: 1.5rem; }
.mt-meter-bar { flex: 1; background: var(--mt-secondary); border-radius: 1px; transition: background .2s; }
.mt-meter-bar.mt-on         { background: var(--mt-primary); box-shadow: 0 0 4px var(--mt-primary-glow); }
.mt-meter-bar.mt-on-warning { background: var(--mt-warning); }
.mt-meter-bar.mt-on-error   { background: var(--mt-error); }


/* ================================================================
   13. ALERTS
   ================================================================ */

.mt-alert {
  display: flex; gap: var(--mt-sp-3); align-items: flex-start;
  padding: var(--mt-sp-3) var(--mt-sp-4); border-radius: var(--mt-r);
  border-left: 3px solid; font-size: 0.8rem; line-height: 1.55;
}
.mt-alert-icon  { flex-shrink: 0; font-size: 0.9rem; margin-top: 1px; }
.mt-alert-body  { flex: 1; }
.mt-alert-title { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 3px; }

.mt-alert-success { background: color-mix(in srgb, var(--mt-primary) 6%, transparent); border-color: var(--mt-primary); color: var(--mt-primary); }
.mt-alert-success .mt-alert-title { color: var(--mt-primary); }
.mt-alert-error   { background: color-mix(in srgb, var(--mt-error) 7%, transparent); border-color: var(--mt-error);   color: var(--mt-error); }
.mt-alert-error   .mt-alert-title { color: var(--mt-error); }
.mt-alert-warning { background: color-mix(in srgb, var(--mt-warning) 6%, transparent); border-color: var(--mt-warning); color: var(--mt-warning); }
.mt-alert-warning .mt-alert-title { color: var(--mt-warning); }
.mt-alert-info    { background: color-mix(in srgb, var(--mt-info) 6%, transparent); border-color: var(--mt-info);  color: var(--mt-info); }
.mt-alert-info    .mt-alert-title { color: var(--mt-info); }


/* ================================================================
   14. TABS & NAV
   ================================================================ */

.mt-tabs { display: flex; border-bottom: 1px solid var(--mt-border); }
.mt-tab {
  font-family: var(--mt-font); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.5rem 1rem; border: none; border-bottom: 2px solid transparent;
  background: transparent; color: var(--mt-fg-faint); cursor: pointer;
  transition: all var(--mt-t); margin-bottom: -1px;
  text-decoration: none; display: inline-flex; align-items: center; gap: var(--mt-sp-2);
}
.mt-tab:hover   { color: var(--mt-fg-dim); }
.mt-tab.mt-active { color: var(--mt-primary); border-bottom-color: var(--mt-primary); }

/* Pill tabs */
.mt-tabs-pill {
  display: inline-flex; gap: var(--mt-sp-1);
  background: var(--mt-surface-2); border: 1px solid var(--mt-border);
  border-radius: var(--mt-r); padding: 3px;
}
.mt-tab-pill {
  font-family: var(--mt-font); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.25rem 0.75rem; border-radius: var(--mt-r-sm);
  background: transparent; color: var(--mt-fg-faint); border: none; cursor: pointer;
  transition: all var(--mt-t);
}
.mt-tab-pill:hover { color: var(--mt-fg-dim); }
.mt-tab-pill.mt-active { background: var(--mt-surface-3); color: var(--mt-primary); box-shadow: var(--mt-shadow-sm); }

/* Breadcrumb */
.mt-breadcrumb { display: flex; align-items: center; gap: var(--mt-sp-2); font-size: 0.65rem; color: var(--mt-fg-faint); }
.mt-breadcrumb-sep { opacity: 0.4; }
.mt-breadcrumb-link { color: var(--mt-fg-dim); text-decoration: none; cursor: pointer; transition: color var(--mt-t); }
.mt-breadcrumb-link:hover { color: var(--mt-primary); }
.mt-breadcrumb-current { color: var(--mt-fg); }

.mt-tab-content { display: none; }
.mt-tab-content.mt-active { display: block; }

/* ================================================================
   15. MODALS & OVERLAYS
   ================================================================ */

.mt-overlay {
  position: fixed; inset: 0; background: hsl(220 20% 3%/.87);
  backdrop-filter: blur(3px); z-index: 900;
  display: flex; align-items: center; justify-content: center;
}
.mt-modal {
  background: var(--mt-surface); border: 1px solid var(--mt-border-bright);
  border-radius: var(--mt-r-lg); padding: var(--mt-sp-6); width: 100%; max-width: 480px;
  box-shadow: var(--mt-shadow-lg), 0 0 40px color-mix(in srgb, var(--mt-primary) 6%, transparent);
  animation: mt-fade-in .2s ease;
}
.mt-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--mt-sp-4); padding-bottom: var(--mt-sp-4); border-bottom: 1px solid var(--mt-border);
}
.mt-modal-title { font-size: 0.875rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--mt-fg-bright); }
.mt-modal-close { background: transparent; border: none; color: var(--mt-fg-faint); cursor: pointer; font-size: 1.2rem; padding: .25rem; transition: color var(--mt-t); }
.mt-modal-close:hover { color: var(--mt-error); }

/* Tooltip */
.mt-tooltip-wrap { position: relative; display: inline-flex; }
.mt-tooltip {
  position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  background: var(--mt-surface-3); border: 1px solid var(--mt-border-bright);
  border-radius: var(--mt-r-sm); padding: .25rem .6rem;
  font-size: 0.65rem; color: var(--mt-fg); white-space: nowrap;
  pointer-events: none; opacity: 0; transition: opacity var(--mt-t); z-index: 1000;
  box-shadow: var(--mt-shadow-md);
}
.mt-tooltip-wrap:hover .mt-tooltip { opacity: 1; }


/* ================================================================
   16. DIVIDERS
   ================================================================ */

.mt-divider { border: none; border-top: 1px solid var(--mt-border); margin: var(--mt-sp-4) 0; }
.mt-divider-sm { margin: var(--mt-sp-2) 0; }
.mt-divider-label {
  display: flex; align-items: center; gap: var(--mt-sp-3);
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--mt-fg-faint); margin: var(--mt-sp-4) 0;
}
.mt-divider-label::before, .mt-divider-label::after { content: ''; flex: 1; border-top: 1px solid var(--mt-border); }
.mt-vdivider { width: 1px; background: var(--mt-border); align-self: stretch; flex-shrink: 0; }


/* ================================================================
   17. SPINNERS & LOADERS
   ================================================================ */

.mt-spinner { display: inline-block; width: 1.25rem; height: 1.25rem; border: 2px solid color-mix(in srgb, var(--mt-primary) 20%, transparent); border-top-color: var(--mt-primary); border-radius: 50%; animation: mt-spin .7s linear infinite; }
.mt-spinner-sm { width: .875rem; height: .875rem; border-width: 1.5px; }
.mt-spinner-lg { width: 2rem; height: 2rem; border-width: 2.5px; }
.mt-spinner-error   { border-color: color-mix(in srgb, var(--mt-error) 20%, transparent); border-top-color: var(--mt-error); }
.mt-spinner-warning { border-color: color-mix(in srgb, var(--mt-warning) 20%, transparent); border-top-color: var(--mt-warning); }

.mt-dots { display: inline-flex; gap: 4px; align-items: center; }
.mt-dots span { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--mt-primary); animation: mt-pulse 1.2s ease-in-out infinite; }
.mt-dots span:nth-child(2) { animation-delay: .2s; }
.mt-dots span:nth-child(3) { animation-delay: .4s; }

.mt-skeleton { background: linear-gradient(90deg, var(--mt-secondary) 25%, hsl(220 15% 16%) 50%, var(--mt-secondary) 75%); background-size: 200% 100%; animation: mt-skeleton 1.5s ease-in-out infinite; border-radius: var(--mt-r); }
.mt-skeleton-text { height: .8rem; border-radius: 2px; }
.mt-skeleton-text + .mt-skeleton-text { margin-top: var(--mt-sp-2); }


/* ================================================================
   18. SIDEBAR
   ================================================================ */

.mt-sidebar { width: var(--mt-sidebar-width); background: var(--mt-bg); border-right: 1px solid var(--mt-border); display: flex; flex-direction: column; overflow-y: auto; flex-shrink: 0; }
.mt-sidebar-header { padding: var(--mt-sp-4); border-bottom: 1px solid var(--mt-border); display: flex; align-items: center; gap: var(--mt-sp-2); }
.mt-sidebar-section { padding: var(--mt-sp-3) var(--mt-sp-2); }
.mt-sidebar-section-label { font-size: 0.6rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mt-fg-faint); padding: var(--mt-sp-1) var(--mt-sp-2); margin-bottom: var(--mt-sp-1); }
.mt-sidebar-item {
  display: flex; align-items: center; gap: var(--mt-sp-2);
  padding: var(--mt-sp-2); border-radius: var(--mt-r-sm);
  font-size: 0.8rem; color: var(--mt-fg-dim); cursor: pointer;
  transition: all var(--mt-t); text-decoration: none; border: 1px solid transparent;
}
.mt-sidebar-item:hover { color: var(--mt-fg); background: var(--mt-surface); }
.mt-sidebar-item.mt-active { color: var(--mt-primary); background: color-mix(in srgb, var(--mt-primary) 8%, transparent); border-color: color-mix(in srgb, var(--mt-primary) 15%, transparent); }
.mt-sidebar-item-icon { width: 1rem; text-align: center; flex-shrink: 0; }


/* ================================================================
   19. MISC UTILITIES
   ================================================================ */

.mt-hidden         { display: none; }
.mt-rounded-sm     { border-radius: var(--mt-r-sm); }
.mt-rounded        { border-radius: var(--mt-r); }
.mt-rounded-lg     { border-radius: var(--mt-r-lg); }
.mt-rounded-full   { border-radius: 9999px; }
.mt-border         { border: 1px solid var(--mt-border); }
.mt-border-mid     { border: 1px solid var(--mt-border-mid); }
.mt-border-top     { border-top: 1px solid var(--mt-border); }
.mt-border-bottom  { border-bottom: 1px solid var(--mt-border); }
.mt-bg-surface     { background: var(--mt-surface); }
.mt-bg-surface-2   { background: var(--mt-surface-2); }
.mt-opacity-50     { opacity: .5; }
.mt-opacity-70     { opacity: .7; }
.mt-cursor-pointer { cursor: pointer; }
.mt-no-select      { user-select: none; }
.mt-shadow-sm      { box-shadow: var(--mt-shadow-sm); }
.mt-shadow-md      { box-shadow: var(--mt-shadow-md); }
.mt-shadow-lg      { box-shadow: var(--mt-shadow-lg); }

.mt-container-card { container-type: inline-size; }

/* Container-aware stats layout (3.1) */
@container (min-width: 400px) { .mt-card-stats { display: flex; justify-content: space-between; gap: var(--mt-sp-4); } }

/* Layout Utilities (3.3) */
.mt-split-pane { display: flex; height: 100vh; }
.mt-sidebar-fixed { width: var(--mt-sidebar-width); flex-shrink: 0; border-right: 1px solid var(--mt-border); }
.mt-content-scroll { flex: 1; overflow-y: auto; }
.mt-sticky-bottom { position: sticky; bottom: 0; background: var(--mt-bg); border-top: 1px solid var(--mt-border); padding: var(--mt-sp-3); }

/* Customizer UI Sidebar */
.mt-customizer {
  position: fixed; right: var(--mt-sp-6); top: var(--mt-sp-6); z-index: 1000;
  width: 220px; background: var(--mt-surface-2); border: 1px solid var(--mt-primary);
  box-shadow: var(--mt-shadow-lg), 0 0 15px var(--mt-primary-glow);
}

/* ================================================================
   20. FOCUS-VISIBLE SYSTEM-WIDE
   ================================================================ */

.mt-root :focus-visible {
  outline: 2px solid var(--mt-green);
  outline-offset: 2px;
  border-radius: var(--mt-r-sm);
  box-shadow: 0 0 0 4px var(--mt-green-glow);
}
.mt-root a:focus-visible,
.mt-root button:focus-visible,
.mt-root [tabindex]:focus-visible {
  outline: 2px solid var(--mt-green);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px var(--mt-green-glow);
}
/* Remove default outline — we handle it above */
.mt-root :focus { outline: none; }


/* ================================================================
   21. BODY SCANLINE TOGGLE (add .mt-body-scanlines to <body> or
       outer wrapper to apply scanline + CRT over the whole page)
   ================================================================ */

body.mt-body-scanlines::after,
.mt-root.mt-body-scanlines::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    hsl(220 20% 4% / .045) 2px,
    hsl(220 20% 4% / .045) 4px
  );
}
body.mt-body-crt::before,
.mt-root.mt-body-crt::before {
  content: '';
  position: fixed;
  left: 0; right: 0;
  height: 4px;
  z-index: 9999;
  pointer-events: none;
  background: linear-gradient(to right, transparent, hsl(142 70% 55%/.06), transparent);
  animation: mt-scanline-move 10s linear infinite;
}


/* ================================================================
   22. GLOW INTENSITY TOKEN — wiring all glow values through
       --mt-glow-intensity so one slider controls everything
   ================================================================ */

/* Re-express glow values using the intensity token via calc */
.mt-glow-primary { text-shadow: 0 0 10px var(--mt-primary-glow); }
.mt-glow-error   { text-shadow: 0 0 10px var(--mt-error-glow); }
.mt-glow-warning { text-shadow: 0 0 10px var(--mt-warning-glow); }
.mt-glow-info    { text-shadow: 0 0 10px var(--mt-info-glow); }
.mt-glow-accent  { text-shadow: 0 0 10px var(--mt-accent-glow); }

/* Card glow variants — use CSS vars so themes remap them automatically */
.mt-card-glow-primary { border-color: var(--mt-primary-glow); box-shadow: var(--mt-shadow-sm), 0 0 20px var(--mt-primary-glow); }
.mt-card-glow-error   { border-color: var(--mt-error-glow);   box-shadow: var(--mt-shadow-sm), 0 0 20px var(--mt-error-glow); }
.mt-card-glow-warning { border-color: var(--mt-warning-glow); box-shadow: var(--mt-shadow-sm), 0 0 20px var(--mt-warning-glow); }
.mt-card-glow-info    { border-color: var(--mt-info-glow);  box-shadow: var(--mt-shadow-sm), 0 0 20px var(--mt-info-glow); }

/* Primary button glow — follows the theme primary via --mt-green-glow */
.mt-btn-primary { box-shadow: 0 0 10px var(--mt-green-glow); }
.mt-btn-primary:hover:not(:disabled) { box-shadow: 0 0 18px var(--mt-green-glow); }


/* ================================================================
   23. MOBILE SIDEBAR + HAMBURGER
   ================================================================ */

.demo-hamburger {
  display: none;
  position: fixed;
  top: 0.75rem; left: 0.75rem;
  z-index: 200;
  width: 2.25rem; height: 2.25rem;
  background: var(--mt-surface-2);
  border: 1px solid var(--mt-border-mid);
  border-radius: var(--mt-r);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all var(--mt-t);
}
.demo-hamburger:hover { border-color: var(--mt-green); }
.demo-hamburger span {
  display: block;
  width: 14px; height: 1.5px;
  background: var(--mt-fg-dim);
  border-radius: 1px;
  transition: all var(--mt-t);
}
.demo-hamburger.is-open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); background: var(--mt-green); }
.demo-hamburger.is-open span:nth-child(2) { opacity: 0; }
.demo-hamburger.is-open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); background: var(--mt-green); }

.demo-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: hsl(220 20% 2% / .6);
  backdrop-filter: blur(2px);
  z-index: 98;
}

/* Quick-jump search bar inside nav */
.demo-nav-search {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--mt-border);
}
.demo-nav-search-input {
  width: 100%;
  background: var(--mt-surface-2);
  border: 1px solid var(--mt-border);
  border-radius: var(--mt-r-sm);
  color: var(--mt-fg);
  font-family: var(--mt-font);
  font-size: 0.65rem;
  padding: 0.3rem 0.5rem 0.3rem 1.4rem;
  outline: none;
  transition: border-color var(--mt-t);
}
.demo-nav-search-input:focus { border-color: var(--mt-green); }
.demo-nav-search-input::placeholder { color: var(--mt-fg-faint); }
.demo-nav-search-wrap {
  position: relative;
}
.demo-nav-search-icon {
  position: absolute;
  left: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--mt-fg-faint);
  font-size: 0.65rem;
  pointer-events: none;
}

/* Theme switcher in nav */
.demo-nav-theme-switcher {
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--mt-border);
  margin-top: auto;
}
.demo-nav-theme-label {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mt-fg-faint);
  margin-bottom: 0.4rem;
}
.demo-theme-pills {
  display: flex;
  gap: 0.35rem;
}
.demo-theme-pill {
  flex: 1;
  padding: 0.25rem 0;
  font-family: var(--mt-font);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  border: 1px solid var(--mt-border);
  border-radius: var(--mt-r-sm);
  background: transparent;
  color: var(--mt-fg-faint);
  cursor: pointer;
  transition: all var(--mt-t);
}
.demo-theme-pill:hover { color: var(--mt-fg); border-color: var(--mt-border-mid); }
.demo-theme-pill.is-active { color: var(--mt-green); border-color: var(--mt-green); background: hsl(142 70% 55%/.06); }
.demo-theme-pill[data-theme="amber"].is-active  { color: hsl(45,90%,55%); border-color: hsl(45,90%,55%); background: hsl(45 90% 55%/.06); }
.demo-theme-pill[data-theme="cyan"].is-active   { color: hsl(185,70%,55%); border-color: hsl(185,70%,55%); background: hsl(185 70% 55%/.06); }
.demo-theme-pill[data-theme="blue"].is-active   { color: hsl(210,85%,58%); border-color: hsl(210,85%,58%); background: hsl(210 85% 58%/.06); }

/* Scanline + CRT toggles */
.demo-nav-fx {
  padding: 0.4rem 0.75rem 0.6rem;
  border-top: 1px solid var(--mt-border);
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.demo-fx-toggle {
  font-family: var(--mt-font);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--mt-border);
  border-radius: var(--mt-r-sm);
  background: transparent;
  color: var(--mt-fg-faint);
  cursor: pointer;
  transition: all var(--mt-t);
}
.demo-fx-toggle:hover { color: var(--mt-fg); border-color: var(--mt-border-mid); }
.demo-fx-toggle.is-on { color: var(--mt-green); border-color: hsl(142 70% 55%/.5); background: hsl(142 70% 55%/.06); }

/* Code block copy button */
.demo-code-copy-btn {
  font-family: var(--mt-font);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--mt-border);
  border-radius: var(--mt-r-sm);
  background: transparent;
  color: var(--mt-fg-faint);
  cursor: pointer;
  transition: all var(--mt-t);
}
.demo-code-copy-btn:hover { color: var(--mt-green); border-color: hsl(142 70% 55%/.4); }
.demo-code-copy-btn.copied { color: var(--mt-green); border-color: var(--mt-green); background: hsl(142 70% 55%/.08); }

/* ================================================================
   24. COMPOSITION SECTION — Kitchen Sink Demo
   ================================================================ */

.demo-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 0.75rem;
}
.demo-dashboard-grid .span-2 { grid-column: span 2; }
.demo-dashboard-grid .span-3 { grid-column: span 3; }

.demo-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--mt-fg-bright);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.demo-stat-delta {
  font-size: 0.6rem;
  font-weight: 600;
  margin-top: 2px;
}
.demo-stat-delta.up   { color: var(--mt-green); }
.demo-stat-delta.down { color: var(--mt-red); }
.demo-stat-delta.flat { color: var(--mt-fg-faint); }

@media (max-width: 680px) {
  .demo-dashboard-grid { grid-template-columns: 1fr 1fr; }
  .demo-dashboard-grid .span-2 { grid-column: span 2; }
  .demo-dashboard-grid .span-3 { grid-column: span 2; }
}
@media (max-width: 480px) {
  .demo-dashboard-grid { grid-template-columns: 1fr; }
  .demo-dashboard-grid .span-2,
  .demo-dashboard-grid .span-3 { grid-column: span 1; }
}

/* ================================================================
   25. MOBILE RESPONSIVE OVERRIDES
   ================================================================ */

@media (max-width: 768px) {
  .demo-hamburger { display: flex; }
  .demo-nav {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 99;
  }
  .demo-nav.is-open { transform: translateX(0); }
  .demo-nav-overlay.is-visible { display: block; }
  .demo-main { margin-left: 0 !important; padding-top: 3.5rem; }
  .demo-grid-2, .demo-grid-3 { grid-template-columns: 1fr; }
  .demo-hero h1 { font-size: 1.75rem; }
}

/* Playground control active state */
.demo-block [data-pg-group] .mt-btn.is-active {
  background: color-mix(in srgb, var(--mt-green) 14%, transparent);
  border-color: color-mix(in srgb, var(--mt-green) 55%, transparent);
  color: var(--mt-green);
}