/* ===== Base Reset ===== */
body {
  font-family: 'Segoe UI', sans-serif;
  
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #333;
  font-size: 0.9375rem;
  line-height: 1.6;

}
.brand::after {
  content: "™";
  font-size: 0.6em;
  vertical-align: super;
  margin-left: 2px;
  color: #555;
}

/* High contrast mode */
body.high-contrast {
  background-color: #000 !important;
  color: #fff !important;
}
body.high-contrast a {
  color: #00ffff !important;
}
body.high-contrast button,
body.high-contrast select,
body.high-contrast input,
body.high-contrast textarea {
  background-color: #000 !important;
  color: #fff !important;
  border: 1px solid #fff !important;
}
body.high-contrast pre {
  background-color: #111 !important;
  color: #0f0 !important;
}

/* Links */
a {
  text-decoration: none;
  color: black;
  font-size: 1rem; /* 16px */
}
a:hover {
  text-decoration: underline;
  color: #ee4977;
}

/* Header */
header {
  background-color: #272b6a;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
}
header img.logo {
  height: 40px;
  width: auto;
}
header h1 {
  font-size: 1.5rem; /* 24px */
  margin: 0;
  white-space: nowrap;
  color: white;
}

/* Navigation */
nav {
  background-color: #f5f0f0;
  padding: 10px 20px;
  display: flex;
  gap: 20px;
}
nav a {
  font-weight: bold;
  
  font-size: 1.5rem;
  padding: 8px 12px;

}


/* Sandbox Layout */
.sandbox-container {
  display: flex;
  flex-direction: row;
  gap: 20px;
  margin-top: 10px;
}
.editor, .output {
  flex: 1;
  display: flex;
  flex-direction: column;
}
textarea#code-input {
  width: 100%;
  min-height: 200px;
  resize: vertical;
  font-family: monospace;
  font-size: 0.875rem; /* 14px */
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  overflow-y: auto;
}

#code {
  width: 100%;          /* fill parent column */
  min-height: 300px;    /* reasonable height */
  resize: vertical;     /* allow learner to resize vertically */
  font-family: monospace;
  font-size: 1rem;
  padding: 10px;
  border: 1px solid #dbe9f4;
  border-radius: 8px;
  box-sizing: border-box;
}

/* Sandbox Launch */
.sandbox-launch {
  background-color: #f0f9f4;
  border: 1px solid #d0e8dc;
  border-radius: 12px;
  padding: 16px;
  margin: 16px auto;
  max-width: 600px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.2s ease;
}
.sandbox-launch:hover {
  transform: translateY(-2px);
}
.sandbox-launch h3 {
  font-size: 1.5rem; /* 24px */
  color: #2e7d32;
  margin-bottom: 8px;
}
.sandbox-launch p {
  font-size: 1rem; /* 16px */
  color: #555;
  margin-bottom: 16px;
}
.sandbox-launch .btn {
  background-color: #fde32d;
  color: #272b6a;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  font-size: 1rem; /* 16px */
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.sandbox-launch .btn:hover {
  background-color: #fcd600;
  color: #272b6a;
}

/* Output */
pre#output {
  background-color: #f9f9f9;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 10px;
  white-space: pre-wrap;
  word-wrap: break-word;
  min-height: 200px;
  font-family: monospace;
  font-size: 0.875rem; /* 14px */
}

/* Buttons */
button {
  margin-top: 10px;
  padding: 8px 16px;
  font-size: 1rem; /* 16px */
  background-color: #fde32d;
  color: #272b6a;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
button:hover {
  box-shadow: 0 0 10px #ee4977, 0 0 10px #4fc3f7, 0 0 10px #ee4977;
  transform: scale(1.05);
}

/* Footer */
footer {
  background-color: #f5f0f0;
  text-align: center;
  padding: 10px;
  font-size: 0.875rem; /* 14px */
  color: #555;
}

/* Popup */
.popup {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 15px 30px;
  background-color: #fde32d;
  color: #272b6a;
  border: 2px solid #272b6a;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 1000;
  font-weight: bold;
  text-align: center;
  font-size: 1.125rem; /* 18px */
}
.popup p {
  margin: 0;
  font-size: 1.125rem; /* 18px */
}

/* Tabs */
.tab-link {
  background: none;
  border: none;
  padding: 10px 16px;
  font-size: 1rem; /* 16px */
  cursor: pointer;
  color: #333;
}
.tab-link.active {
  font-weight: bold;
  border-bottom: 2px solid #333;
  color: #2e7d32;
}
/* Welcome box */
.welcome-box {
  background-color: #f0f9f4;
  border: 1px solid #d0e8dc;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 30px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.welcome-box h3 {
  font-size: 1.5rem; /* 24px */
  color: #272b6a;
  margin-bottom: 10px;
}
.welcome-box p {
  font-size: 1rem; /* 16px */
  color: #555;
}

/* Options grid */
.options-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

/* Option cards */
.option-card {
  background-color: #f9fcff;
  border: 1px solid #dbe9f4;
  border-radius: 12px;
  padding: 20px;
  width: 280px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
}
.option-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
}
.option-card h4 {
  font-size: 1.25rem; /* 20px */
  margin-bottom: 8px;
  color: #272b6a;
}
.option-card p {
  font-size: 0.95rem; /* ~15px */
  color: #555;
}

/* Grid layout for dashboard */
.dashboard-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
}

/* Progress card */
.badge-counts {
  flex: 1;
  min-width: 280px;
  max-width: 350px;
  background-color: #f9fcff;
  border: 1px solid #dbe9f4;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  text-align: center;
}

/* Chart card */
.chart {
  flex: 2;
  min-width: 320px;
  max-width: 600px;
  background-color: #fff;
  border: 1px solid #e1e7ef;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  text-align: center;
}
.chart img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid #dbe9f4;
}

.badge-counts ul {
  list-style: none; /* remove default bullets */
  padding: 0;
  margin: 0;
}

.badge-counts li {
  font-size: 1rem;
  margin: 8px 0;
  padding: 8px 12px;
  background-color: #f5f7fa;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.badge-label {
  font-weight: bold;
  color: #2e7d32; /* green accent */
}

main{
  background-color: #f9fcff;
  border: 1px solid #dbe9f4;
  border-radius: 12px;
  padding: 24px;
  margin: 30px auto;
  max-width: 1200px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);

}

main h2 {
  font-size: 1.5rem;
  color: #272b6a;
  margin-bottom: 12px;
}

main a {
  font-weight: bold;
  color: #2e7d32;
  text-decoration: none;
}
main a:hover {
  text-decoration: underline;
}


/* Main sandbox container */
.layout main{
  background-color: #f9fcff;
  border: 1px solid #dbe9f4;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  max-width: 1200px;       /* keeps content readable */
  margin: 30px auto;      /* centers horizontally */
  padding: 24px;
}

/* Guidance text */
.sandbox-guidance {
  margin-top: 12px;
  font-size: 1rem;
  color: #555;
}

/* Info box */
.sandbox-info {
  background-color: #f0f9f4;
  border: 1px solid #d0e8dc;
  border-radius: 8px;
  padding: 12px;
  margin: 16px 0;
  font-size: 0.95rem;
  color: #2e7d32;
}

/* Form layout */
form {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

label {
  font-weight: bold;
  color: #1f2d3d;
  margin-bottom: 4px;
}

select {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #dbe9f4;
  font-size: 1rem;
  background-color: #fff;
  transition: border-color 0.2s ease;
}
select:focus {
  border-color: #82b1ff;
  outline: none;
  box-shadow: 0 0 0 3px rgba(130, 177, 255, 0.25);
}

/* Submit button */
button[type="submit"] {
  background-color: #fde32d;
  color: #272b6a;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}
button:hover {
  background-color: #fcd600;
  transform: translateY(-2px);
}

/* Legend */
.legend {
  margin-top: 20px;
  font-size: 0.95rem;
  color: #555;
}
.legend ul {
  list-style: none;
  padding-left: 0;
}
.legend li {
  margin-bottom: 6px;
}

.card-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: #fff;
  border: 1px solid #dbe9f4;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.expected-box,
.hint-box {
  display: none;       /* hidden by default */
  margin-top: 10px;
  padding: 10px;
  border-left: 4px solid;
  border-radius: 6px;
}

.expected-box {
  background: #fff8d6;
  border-color: #f5c518;
}

.hint-box {
  background: #e6f4ff;
  border-color: #1a73e8;
}
@media (max-width: 900px) {
  .card-container {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .card-container {
    grid-template-columns: 1fr;
  }
}


/* Responsive rules */
@media (max-width: 768px) {
  .layout main {
    max-width: 95%;   /* shrink width on tablets */
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .layout main {
    max-width: 100%;  /* full width on mobile */
    padding: 12px;
  }
  h2 {
    font-size: 1.25rem; /* smaller heading */
  }
  select, button {
    font-size: 0.9rem;
    padding: 10px;
  }
}
.sandbox-flex {
  display: flex;
  flex-wrap: wrap;   /* allows stacking on small screens */
  gap: 20px;
  margin-top: 20px;
}

.sandbox-column {
  flex: 1 1 400px;   /* flexible width, min 400px */
  background: #fff;
  border: 1px solid #dbe9f4;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.toolbar button {
  background-color: #fde32d; /* Yellow base */
  color: #272b6a; /* Navy text */
  border: none;
  padding: 8px 14px;
  margin: 4px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.sandbox-options {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Container for the logic buttons */
.logic-controls {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    margin-bottom: 10px;
    flex-wrap: wrap; /* Ensures buttons stack nicely on mobile */
}


/* Flowchart Display Area */
#flowchart-container {
    background-color: #ffffff;
    border: 1.5px dashed #d1d9e0; /* Dashed border implies it's a "canvas" or "map" */
    border-radius: 12px;
    padding: 20px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
    min-height: 150px;
    transition: opacity 0.3s ease;
}




/* Label above the graph */
#flowchart-label {
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

#mermaid-graph {
    min-height: 200px;
    width: 100%;
    background-color: #ffffff;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #ddd;
    margin-top: 10px;
}

.mermaid {
    display: flex;
    justify-content: center;
}
 
.button-card {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 12px 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  margin-top: 20px;
  background-color: #fff;
}

.button-row {
  display: flex;
  gap: 12px;
  align-items: stretch; /* ensures all children match height */
}

.button-row button,
.button-row form button {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px; /* fixed height for sleek look */
  padding: 0 16px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  background-color: #fde32d;
  color: #272b6a;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.button-row button:hover,
.button-row form button:hover {
  background-color: #fbc02d;
}

.button-row form {
  flex: 1;
  display: flex; /* ensures form stretches like button */
}

/* 1. Hide ANY canvas, image, or figure div that is a direct child of the body */
/* This stops them from appearing under your footer. */
body > canvas, 
body > img, 
body > div.matplotlib-figure,
body > span[id^="matplotlib"] {
    display: none !important;
}


/* 2. Re-enable them ONLY when they are inside your designated target */
#pyplot_target canvas, 
#pyplot_target img, 
#pyplot_target .matplotlib-figure {
    display: block !important;
    max-width: 100%;
    margin: 10px auto;
}
/* Update your existing styles with these */
#output {
    white-space: pre-wrap; /* Ensures long tracebacks wrap instead of scrolling */
    word-wrap: break-word;
    font-weight: bold;     /* <-- this makes everything bold */
    color:black;

}

.output-error {
    border-left: 6px solid #d32f2f !important;
    background-color: #fff5f5 !important;
    color: #b71c1c !important;
    padding: 15px !important;
}

.code-container {
    display: flex;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: monospace;
    line-height: 1.5; /* Crucial: must match textarea */
    overflow: hidden;
}

#line-numbers {
    padding: 10px 5px;
    background: #f0f0f0;
    color: #999;
    text-align: right;
    user-select: none;
    border-right: 1px solid #ddd;
    min-width: 30px;
    font-size: 14px; /* Match textarea */
}


#code {
    flex: 1;
    border: none;
    padding: 10px;
    resize: none;
    outline: none;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre;
    overflow-x: auto;
}

.emoji-btn {
    font-size: 1.5rem;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}
.emoji-btn:hover {
    transform: scale(1.2);
    background: #e3f2fd;
}
.emoji-circle {
    font-size: 1.8rem;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-block;
}
.emoji-circle:hover {
    transform: scale(1.4);
}

/* Use a more specific selector to ensure it overrides #output defaults */
#output .error-line-highlight {
    font-weight: 800 !important;
    text-decoration: underline wavy #d32f2f !important; 
    color: #b71c1c !important;
    padding: 2px 4px !important;
    background-color: #ffebee !important; 
    display: inline-block; /* Helps with background-color rendering */
    border-radius: 3px;
}

/* Ensure the parent container allows HTML rendering */
.output-console {
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    background: #fdfdfd;
    padding: 15px;
    border: 1px solid #ddd;
    min-height: 100px;
    font-size: 14px;
    line-height: 1.6;
}

/* Base style for all tips */
.error-tip {
    margin-top: 15px;
    padding: 12px;
    border-radius: 6px;
    font-family: 'Segoe UI', sans-serif;
    font-size: 0.95rem;
    line-height: 1.4;
}
.error-highlight {
  background-color: #ffe0e0;
  color: #b71c1c;
  font-weight: bold;
  border-left: 3px solid #f44336;
  padding-left: 4px;
}






/* Specific color for Indentation */
.indent-tip {
    background-color: #e3f2fd; /* Light blue */
    border-left: 5px solid #2196f3;
    color: #0d47a1;
}

/* Specific color for NameError */
.name-tip {
    background-color: #fff3cd; /* Light yellow */
    border-left: 5px solid #ffc107;
    color: #856404;
}

.syntax-tip {
    background-color: #fce4ec; /* Light pink */
    border-left: 5px solid #e91e63;
    color: #880e4f;
}


#input-container {
    background: #f8f9fa;
    border-left: 4px solid #007bff;
    margin: 10px 0;
    padding: 15px; /* Give it some base padding */
    height: auto !important; /* Allow it to grow with the loop */
    max-height: none !important; /* Remove the 0px limit */
    opacity: 1 !important; /* Ensure it is visible */
    overflow: visible;
    transition: all 0.4s ease;
}

/* Ensure the container is actually shown when active */
#input-container.active {
    display: block !important;
}


.input-row {
    margin-bottom: 12px;
}

.input-row label {
    display: block;
    font-weight: bold;
    font-size: 0.9em;
    color: #495057;
    margin-bottom: 4px;
}

.input-row input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ced4da;
    border-radius: 4px;
}

.input-confirm-btn {
    background: #28a745;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}



#confirm-run-btn:hover {
    background-color: #1b5e20 !important;
}


/* Modal Overlay */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

/* Modal Box */
.modal-content {
    background: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.stat-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1.5rem;
        margin: 1.5rem 0;
    }

    .stat-card {
        background: #fff;
        border: 1px solid #e0e0e0;
        border-radius: 12px;
        padding: 1.5rem;
        text-align: center;
        transition: transform 0.2s, box-shadow 0.2s;
        position: relative;
    }

    .stat-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }

    .stat-card.alert {
        border-color: #ffcccc;
        background-color: #fff9f9;
    }

    .stat-icon {
        font-size: 1.5rem;
        display: block;
        margin-bottom: 0.5rem;
    }

    .stat-value {
        font-size: 2rem;
        font-weight: 800;
        color: #2d3436;
        line-height: 1;
    }

    .stat-label {
        font-size: 0.85rem;
        color: #636e72;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-top: 0.5rem;
    }

    .badge {
        position: absolute;
        top: -10px;
        right: 10px;
        background: #d63031;
        color: white;
        font-size: 0.7rem;
        padding: 2px 8px;
        border-radius: 10px;
        font-weight: bold;
    }

  #backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    background-color: var(--brand-navy, #272b6a);
    color: white;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 20px;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: transform 0.2s, background 0.3s;
  }
  #backToTop:hover {
    background-color: var(--brand-aqua, #4bc2c4);
    transform: scale(1.1);
  }