:root{

    color-scheme: light;

    /* Base */
    --bg: #F4EBCF;
    --surface: #FFFFFF;
    --surface-alt: #F8F4EC;

    /* Text */
    --text: #111111;
    --text-muted: #5B5B5B;

    /* Borders */
    --border: #111111;

    /* Brand */
    --primary: #FF8A00;
    --primary-hover: #FF7300;

    /* Status */
    --success: #2FBF71;
    --danger: #FF4D4D;
    --warning: #FFD166;

    /* Search */
    --highlight: #FFE27A;

    /* Neo Brutal Shadows */
    --shadow-sm: 3px 3px 0 var(--border);
    --shadow-md: 4px 4px 0 var(--border);
    --shadow-lg: 6px 6px 0 var(--border);

    /* Skeleton Loading Animation Colors */
    --skeleton-dark:#252525;
    --skeleton-light:#3a3a3a;

    /* Animation */
--transition-fast: 80ms;
--transition-normal: 120ms;
--search-animation-duration: 220ms;

}

[data-theme="dark"]{

    color-scheme: dark;

    --bg:#161616;
    --surface:#262626;
    --surface-alt:#303030;

    --text:#F2F2F2;
    --text-muted:#B5B5B5;

    --border:#F5F5F5;

    --highlight:#B38700;

    --shadow-sm:3px 3px 0 var(--border);
    --shadow-md:4px 4px 0 var(--border);
    --shadow-lg:6px 6px 0 var(--border);

}

html {
    scrollbar-gutter: stable;
}

html,
body,
.brutalist-wrapper,
.app-header,
.folder-card,
.program-card,
.card-header,
.search-input,
.search-clear,
.action-btn,
.expand-icon,
.back-btn,
.theme-btn{

    transition:
        background-color .2s ease,
color .2s ease,
border-color .2s ease,
box-shadow .2s ease;

}

* {
  box-sizing: border-box;
}

body {
    font-family: 'Courier Prime', monospace;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px 20px 100px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;

    overflow-y: scroll;
}

.app-container {
  max-width: 960px;
  width: 100%;
}

/* Main Container */
.brutalist-wrapper {
  background: var(--surface);
border: 2px solid var(--border);
box-shadow: var(--shadow-lg);
  padding: 40px 30px;
  margin-bottom: 30px;
}

/* Header Styling */
.app-header {
  position: sticky;
  top: 0;
  background:var(--surface);
  z-index: 100;
  margin-bottom: 40px;
  border-bottom:2px solid var(--border);
  padding-top: 10px;
  padding-bottom: 24px;
}

.app-title {
  font-size: 2rem;
  font-weight: 700;
  color:var(--text);
  margin: 0 0 10px 0;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.app-subtitle {
  font-size: 0.9rem;
  color:var(--text-muted);
  margin: 0;
  line-height:1.5;
}

.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
}

.header-bar > div:first-child{
    padding-left:24px;
}

.header-actions-right{
    display:flex;
    align-items:center;
    gap:12px;
}

.theme-btn{

    background:var(--surface);
    color:var(--text);

    border:2px solid var(--border);

    box-shadow:var(--shadow-sm);

    width:46px;
    height:46px;

    display:flex;
    justify-content:center;
    align-items:center;

    cursor:pointer;

    font-size:1rem;

    /* Add these */
    border-radius:0;
    font-family:'Courier Prime', monospace;
    line-height:1;

    transition:
        transform .08s ease,
        box-shadow .08s ease,
        background-color .12s ease,
        color .12s ease;

    user-select:none;
    -webkit-tap-highlight-color:transparent;
}

@media (hover:hover){

.theme-btn:hover{

    background:var(--border);
    color:var(--surface);

    box-shadow:var(--shadow-md);

    transform:translate(-1px,-1px);

}

}

.theme-btn:active,
.theme-btn.is-pressed{

    transform:translate(3px,3px);

    box-shadow:0 0 0 0 var(--border);

}

/* Back Button */
.back-btn {
  display: none;
  background:var(--surface);
color:var(--text);

border:2px solid var(--border);

box-shadow:var(--shadow-sm);
  padding: 12px 18px;
  font-family: 'Courier Prime', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;
  white-space: nowrap;
  margin-right: 8px;
  margin-top: 6px;
  flex-shrink: 0;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
 .back-btn:hover{
    background:var(--border);
    color:var(--surface);
    box-shadow:var(--shadow-md);
}
}

.back-btn:active,
.back-btn.is-pressed {
  transform: translate(3px, 3px) !important;
  box-shadow:0 0 0 0 var(--border) !important;
}

/* Home Grid */
.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.folder-card {
  background:var(--surface);
  border:2px solid var(--border);
  box-shadow:var(--shadow-md);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 15px;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
  .folder-card:hover {
    background: var(--border);
    color: var(--surface);

    transform: translate(-1px, -1px);
    box-shadow: var(--shadow-md);
  }

  .folder-card:hover .folder-card-title,
  .folder-card:hover .folder-card-desc {
    color: var(--surface);
  }
}

.folder-card:active,
.folder-card.is-pressed {
    transform: translate(3px, 3px) !important;
    box-shadow: 0 0 0 0 var(--border) !important;
}

.folder-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color:var(--text);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.folder-card-desc {
  font-size: 0.8rem;
  color:var(--text-muted);
  margin: 0;
  line-height: 1.4;
  text-transform: lowercase;
}

/* View Containers */
.view-container {
  display: none;
}

.view-container.active {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* ========================== */
/* View Transition Animation */
/* ========================== */

@keyframes viewFadeIn{

    from{
        opacity:0;
        transform:translateY(10px);
    }

    to{
        opacity:1;
        transform:translateY(0);
    }

}

.view-enter{
    animation:viewFadeIn .22s ease;
}

/* Clicky Brutalist Program Card */
.program-card {
  background: var(--surface);
    border: 2px solid var(--border);
    box-shadow: var(--shadow-md);
  position: relative;
  transition:
    opacity var(--search-animation-duration) ease,
    transform var(--search-animation-duration) ease,
    box-shadow var(--transition-fast) ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.program-card.search-hidden{
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
}
@media (hover: hover) {
  .program-card:hover {
    transform: translate(-1px, -1px);
    box-shadow: var(--shadow-lg);
  }
}

/* Tactile Click Press State for Entire Card */
.program-card:active,
.program-card.is-pressed {
  transform: translate(3px, 3px) !important;
  box-shadow: 0 0 0 0 var(--border) !important;
}

/* Universal Accordion Behavior */
.program-card.collapsed .code-wrapper,
.program-card.collapsed .editor-wrapper {
  display: none !important;
}

.card-header {
  background: var(--surface);
  padding: 12px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  cursor: pointer;
}

.program-card:not(.collapsed) .card-header {
  border-bottom: 2px solid var(--border);
}

.title-group{
    display:flex;
    flex-direction:column;
    gap:4px;

    flex:1;
    min-width:0;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.program-title-text{
    overflow-wrap:anywhere;
    word-break:break-word;
}

.serial-badge {
    background: var(--primary);
    color: #fff;
    border: 1px solid var(--border);
    padding: 3px 8px;
    font-size: 0.85rem;
    font-weight: 700;
    min-width: 26px;
    text-align: center;
    display: inline-block;
}

.file-badge {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 2px 0 0 0;
  font-weight: 400;
  line-height: 1.3;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;

  flex-shrink: 0;

  position: relative;
  z-index: 2;
}

/* Brutalist Clicky Action Buttons */
.action-btn {
  background:var(--surface);
color:var(--text);
border:2px solid var(--border);
box-shadow:var(--shadow-sm);
  padding: 5px 12px;
  font-family: 'Courier Prime', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
  .action-btn:hover {
    background:var(--border);
color:var(--surface);
    transform: translate(-1px, -1px);
    box-shadow:var(--shadow-md);
  }
}

.action-btn:active,
.action-btn.is-pressed {
  transform: translate(3px, 3px) !important;
  box-shadow:0 0 0 0 var(--border) !important;;
}

/* Clicky Expand Indicator */
.expand-icon {
  background: var(--surface);
color: var(--text);
border: 2px solid var(--border);
box-shadow: var(--shadow-sm);
  padding: 5px 10px;
  font-family: 'Courier Prime', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;
  user-select: none;
  display: inline-block;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) {
  .expand-icon:hover {
    background:var(--border);
color:var(--surface);
box-shadow:var(--shadow-md);
  }
}

.expand-icon:active,
.expand-icon.is-pressed {
  transform: translate(3px, 3px) !important;
  box-shadow:0 0 0 0 var(--border) !important;
}

.run-btn {
  background:var(--success);
color:white;
border:2px solid var(--border);
box-shadow:var(--shadow-sm);
}

@media (hover: hover) {
  .run-btn:hover {
    background:var(--success);
filter:brightness(1.08);
color:white;
box-shadow:var(--shadow-md);
    transform: translate(-1px, -1px);
  }
}

.run-btn:active,
.run-btn.is-pressed {
  transform: translate(3px, 3px) !important;
  box-shadow:0 0 0 0 var(--border) !important;
}

/* Code Display Area */
.code-wrapper {
  background-color: #1d1f21 !important;
  padding: 15px;
  max-height: 420px;
  overflow: auto;
}

pre[class*="language-"] {
  margin: 0;
  padding: 0;
  background: transparent !important;
  font-family: 'Courier Prime', monospace;
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Compiler Runner Container */
.editor-wrapper {
  position: relative;
  height: 480px;
  background:#1d1f21;
  border-top:2px solid var(--border);
  display: none;
  overflow: hidden;
  border-radius:0;
}

.editor-wrapper.active {
  display: block;
}

.editor-wrapper iframe {
  width: 200%;
  height: 100%;
  border: none;
  background-color: #1e1e1e;
  position: absolute;
  top: 0;
  left: -93%;
  border-radius: 0;
}

.editor-wrapper iframe::-webkit-scrollbar {
  display: none;
}

.loading-msg {
  color:var(--text-muted);
  text-align: center;
  padding: 30px;
  font-size: 0.85rem;
  text-transform: lowercase;
}

/* ==========================
   Code Loading Skeleton
========================== */

.code-skeleton {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 22px;
}

.code-skeleton-line {
    height: 14px;
    border-radius: 3px;
    background: linear-gradient(
    90deg,
    var(--skeleton-dark) 25%,
    var(--skeleton-light) 50%,
    var(--skeleton-dark) 75%
);
    background-size: 400% 100%;
    animation: skeleton-loading 1.2s infinite linear;
}

.code-skeleton-line:nth-child(1) { width: 95%; }
.code-skeleton-line:nth-child(2) { width: 72%; }
.code-skeleton-line:nth-child(3) { width: 88%; }
.code-skeleton-line:nth-child(4) { width: 60%; }
.code-skeleton-line:nth-child(5) { width: 82%; }
.code-skeleton-line:nth-child(6) { width: 45%; }
.code-skeleton-line:nth-child(7) { width: 90%; }

@keyframes skeleton-loading {

    0% {
        background-position: 100% 0;
    }

    100% {
        background-position: -100% 0;
    }

}

/* ========================== */
/* Keyboard Focus */
/* ========================== */

button:focus-visible,
input:focus-visible,
[role="button"]:focus-visible,
.folder-card:focus-visible,
.action-btn:focus-visible,
.expand-icon:focus-visible,
.back-btn:focus-visible,
.search-clear:focus-visible,
.search-input:focus-visible{
    outline:3px solid var(--primary);
    outline-offset:3px;
}

/* ========================== */
/* Footer */
/* ========================== */

.app-footer{
    margin-top:22px;

    text-align:center;

    font-size:.75rem;
    color:var(--text-muted);
    opacity: .85;
    letter-spacing:.2px;
}

.app-footer a{
    color:var(--text);
    text-decoration:underline;
}

.app-footer a:hover{
    color:var(--primary);
}

/* Mobile Responsive Adjustments */

.mobile-run-note{
    display:none;
    margin-top:6px;

    color:var(--text-muted);

    font-size:.8rem;
    line-height:1.4;
}
@media (max-width: 600px) {
  body {
    padding: 8px 6px 40px 6px;
  }

  .app-footer{

    margin-top:25px;

    font-size:.75rem;

}

  .brutalist-wrapper {
    padding: 12px 8px;
    border-width: 1.5px;
    box-shadow:var(--shadow-sm);
    margin-bottom: 15px;
  }

  .app-header {
    margin-bottom: 15px;
    padding-bottom: 10px;
  }

  .app-title {
    font-size: 1.3rem;
  }

  .back-btn {
    padding: 12px 14px;
    font-size: 0.7rem;
  }

  .card-header {
    padding: 10px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .title-group {
    width: 100%;
  }

  .card-title {
    font-size: 0.9rem;
    line-height: 1.3;
  }

  .file-badge {
    display: block;
    margin-top: 2px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .action-btn.run-btn {
    display: none !important;
  }

  .code-wrapper {
    padding: 10px;
  }

  pre[class*="language-"] {
    font-size: 0.8rem;
  }

  .editor-wrapper {
    height: 450px;
  }

  .editor-wrapper iframe {
    width: 200%;
    left: -93%;
    top: 0;
    position: absolute;
  }
  .search-input{

    font-size:.85rem;

    padding:10px 12px;

}
.mobile-run-note{
    display:block;
}

.theme-btn{

    width:38px;
    height:38px;

    font-size:.9rem;

}

.header-bar > div:first-child{
    padding-left:0px;
}
}


/* ============================= */
/* Search */
/* ============================= */

.search-container{
    margin-bottom:0;
}

.search-input{

    width:100%;

    background:var(--surface);
color:var(--text);
border:2px solid var(--border);
box-shadow:var(--shadow-md);

    padding:12px 55px 12px 16px;

    font-family:'Courier Prime', monospace;

    font-size:.9rem;

    transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;

}

.search-input:focus{

    outline:none;

    transform:translate(-1px,-1px);

    box-shadow:var(--shadow-lg);

}

.search-input::placeholder{

    color:var(--text-muted);

}

.no-results{

    text-align:center;

    padding:25px;

    color:var(--text-muted);

    text-transform:lowercase;

    font-size:.9rem;

}

.search-wrapper{
    position:relative;
    width:100%;
}

.search-clear{
    position:absolute;
    right:16px;
    top:50%;
    transform:translateY(-50%);
    width:28px;
    height:28px;

    background:var(--surface);
color:var(--text);
box-shadow:var(--shadow-sm);

    font-family:'Courier Prime', monospace;
    font-size:18px;
    font-weight:bold;

    cursor:pointer;

    display:flex;
    align-items:center;
    justify-content:center;

    transition:
    transform .08s ease,
    box-shadow .08s ease,
    background-color .12s ease,
    color .12s ease;

}

.search-clear:hover{
    background:var(--border);
color:var(--surface);
}

.search-clear:active{
    transform:translateY(-50%) translate(3px,3px);
    box-shadow:0 0 0 0 var(--border);
}
.search-clear.is-pressed{
    transform: translateY(-50%) translate(3px,3px) !important;
    box-shadow:0 0 0 0 var(--border);
}

.search-status{
    min-height:20px;
    margin-top:16px;

    color:var(--text-muted);

    font-size:.8rem;

    text-transform:none;

    display:flex;
    align-items:center;
}

mark{
    background:var(--highlight);
    color:#000;
    border-radius:4px;
    padding:0 .15em;
}