/*
================================================================
  XAMO CSS MODULARIZATION GUIDE
================================================================
This file is prepared for future CSS modularization.

New CSS additions should follow these conventions:
- For a new feature, create a new CSS file (e.g., feature-name.css).
- Place the new file in an appropriate directory (e.g., 'styles/components/').
- Import the new file at the end of this file using @import.

Structure for new CSS files and additions:

1. @layer base:
   - For resets, base typography, and global variables.
   - Example: body font-size, global CSS custom properties.

2. @layer layout:
   - For global page sections or major grid systems.
   - Example: .app-container, .main-content-grid

3. @layer components:
   - For styles related to individual, reusable UI elements.
   - Example: .btn, .card, .modal, keyframe animations.

4. @layer overrides:
   - For page-specific tweaks or utility overrides.
   - Example: .landing-page .header { ... }

This structure keeps our styling organized and scalable.
================================================================
*/


/*
================================================================
  LAYER: BASE
  Tailwind CSS reset and base styles.
================================================================
*/

/*
1. Prevent padding and border from affecting element width. (https://github.com/mozdevs/cssremedy/issues/4)
2. Allow adding a border to an element by just adding a border-width. (https://github.com/tailwindcss/tailwindcss/pull/116)
*/

*,
::before,
::after {
  box-sizing: border-box;
  /* 1 */
  border-width: 0;
  /* 2 */
  border-style: solid;
  /* 2 */
  border-color: #e5e7eb;
  /* 2 */
}

::before,
::after {
  --tw-content: '';
}

/*
1. Use a consistent sensible line-height in all browsers.
2. Prevent adjustments of font size after orientation changes in iOS.
3. Use a more readable tab size.
4. Use the user's configured `sans` font-family by default.
5. Use the user's configured `sans` font-feature-settings by default.
6. Use the user's configured `sans` font-variation-settings by default.
7. Disable tap highlights on iOS
*/

html,
:host {
  line-height: 1.5;
  /* 1 */
  -webkit-text-size-adjust: 100%;
  /* 2 */
  -moz-tab-size: 4;
  /* 3 */
  tab-size: 4;
  /* 3 */
  font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  /* 4 */
  font-feature-settings: normal;
  /* 5 */
  font-variation-settings: normal;
  /* 6 */
  -webkit-tap-highlight-color: transparent;
  /* 7 */
}

/*
1. Remove the margin in all browsers.
2. Inherit line-height from `html` so users can set them as a class directly on the `body` element.
*/

body {
  margin: 0;
  /* 1 */
  line-height: inherit;
  /* 2 */
}

/*
1. Add the correct height in Firefox.
2. Correct the inheritance of border color in Firefox. (https://bugzilla.mozilla.org/show_bug.cgi?id=190655)
3. Ensure horizontal rules are visible by default.
*/

hr {
  height: 0;
  /* 1 */
  color: inherit;
  /* 2 */
  border-top-width: 1px;
  /* 3 */
}

/*
Add the correct text decoration in Chrome, Edge, and Safari.
*/

abbr:where([title]) {
  -webkit-text-decoration: underline dotted;
  text-decoration: underline dotted;
}

/*
Remove the default font size and weight for headings.
*/

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

/*
Reset links to optimize for opt-in styling instead of opt-out.
*/

a {
  color: inherit;
  text-decoration: inherit;
}

/*
Add the correct font weight in Edge and Safari.
*/

b,
strong {
  font-weight: bolder;
}

/*
1. Use the user's configured `mono` font-family by default.
2. Use the user's configured `mono` font-feature-settings by default.
3. Use the user's configured `mono` font-variation-settings by default.
4. Correct the odd `em` font sizing in all browsers.
*/

code,
kbd,
samp,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  /* 1 */
  font-feature-settings: normal;
  /* 2 */
  font-variation-settings: normal;
  /* 3 */
  font-size: 1em;
  /* 4 */
}

/*
Add the correct font size in all browsers.
*/

small {
  font-size: 80%;
}

/*
Prevent `sub` and `sup` elements from affecting the line height in all browsers.
*/

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/*
1. Remove text indentation from table contents in Chrome and Safari. (https://bugs.chromium.org/p/chromium/issues/detail?id=999088, https://bugs.webkit.org/show_bug.cgi?id=201297)
2. Correct table border color inheritance in all browsers. (https://github.com/tailwindcss/tailwindcss/issues/9357)
3. Remove gaps between table borders by default.
*/

table {
  text-indent: 0;
  /* 1 */
  border-color: inherit;
  /* 2 */
  border-collapse: collapse;
  /* 3 */
}

/*
1. Change the font styles in all browsers.
2. Remove the margin in Firefox and Safari.
3. Remove default padding in all browsers.
4. Remove the default border roundedness in all browsers.
5. Use default border color in all browsers.
*/

button,
input,
optgroup,
select,
textarea {
  font-family: inherit;
  /* 1 */
  font-feature-settings: inherit;
  /* 1 */
  font-variation-settings: inherit;
  /* 1 */
  font-size: 100%;
  /* 1 */
  font-weight: inherit;
  /* 1 */
  line-height: inherit;
  /* 1 */
  color: inherit;
  /* 1 */
  margin: 0;
  /* 2 */
  padding: 0;
  /* 3 */
  border-radius: 0;
  /* 4 */
  border-color: #6b7280;
  /* 5 */
}

/*
Remove the inheritance of text transform in Edge and Firefox.
*/

button,
select {
  text-transform: none;
}

/*
1. Correct the inability to style clickable types in iOS and Safari.
2. Remove default button styles.
*/

button,
[type='button'],
[type='reset'],
[type='submit'] {
  -webkit-appearance: button;
  /* 1 */
  background-color: transparent;
  /* 2 */
  background-image: none;
  /* 2 */
}

/*
Use the modern Firefox focus style for all focusable elements.
*/

:-moz-focusring {
  outline: auto;
}

/*
Remove the additional `:invalid` styles in Firefox. (https://github.com/mozilla/gecko-dev/blob/2f9eacd9d3d995c937b4251a5557d95d494c9be1/layout/style/res/forms.css#L728-L737)
*/

:-moz-ui-invalid {
  box-shadow: none;
}

/*
Add the correct vertical alignment in Chrome, Edge, and Firefox.
*/

progress {
  vertical-align: baseline;
}

/*
Correct the cursor style of increment and decrement buttons in Safari.
*/

::-webkit-inner-spin-button,
::-webkit-outer-spin-button {
  height: auto;
}

/*
1. Correct the odd appearance in Chrome and Safari.
2. Correct the outline style in Safari.
*/

[type='search'] {
  -webkit-appearance: textfield;
  /* 1 */
  outline-offset: -2px;
  /* 2 */
}

/*
Remove the inner padding in Chrome and Safari on macOS.
*/

::-webkit-search-decoration {
  -webkit-appearance: none;
}

/*
1. Correct the inability to style clickable types in iOS and Safari.
2. Change font properties to `inherit` in Safari.
*/

::-webkit-file-upload-button {
  -webkit-appearance: button;
  /* 1 */
  font: inherit;
  /* 2 */
}

/*
Add the correct display in Chrome, Edge, and Firefox.
*/

summary {
  display: list-item;
}

/*
Removes the default spacing and border for appropriate elements.
*/

blockquote,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
hr,
figure,
p,
pre {
  margin: 0;
}

fieldset {
  margin: 0;
  padding: 0;
}

legend {
  padding: 0;
}

ol,
ul,
menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/*
Reset default styling for dialogs.
*/

dialog {
  padding: 0;
}

/*
Prevent resizing textareas horizontally by default.
*/

textarea {
  resize: vertical;
}

/*
1. Reset the default placeholder opacity in Firefox. (https://github.com/tailwindlabs/tailwindcss/issues/3300)
2. Set the default placeholder colorFlights to the user's configured gray color.
*/

input::placeholder,
textarea::placeholder {
  opacity: 1;
  /* 1 */
  color: #9ca3af;
  /* 2 */
}

/*
Set the default cursor for buttons.
*/

button,
[role="button"] {
  cursor: pointer;
}

/*
Make sure disabled buttons don't get the pointer cursor.
*/

:disabled {
  cursor: default;
}

/*
1. Make images easier to work with.
2. Make videos easier to work with.
*/

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  /* 1 */
  vertical-align: middle;
  /* 1 */
}

img,
video {
  max-width: 100%;
  /* 2 */
  height: auto;
  /* 2 */
}

/*
Include an arbitrary property in a utility class.
*/

.group:hover .group-hover\:visible {
  visibility: visible;
}

/*
================================================================
  LAYER: COMPONENTS & UTILITIES
  Component styles, animations, and utility classes.
================================================================
*/

@keyframes wave {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes glow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

@keyframes wave1 {
    0% { transform: translate(-50%, -50%) rotate(0deg) scale(1); }
    100% { transform: translate(-50%, -50%) rotate(360deg) scale(1.05); }
}

@keyframes wave2 {
    0% { transform: translate(-50%, -50%) rotate(0deg) scale(1.1); }
    100% { transform: translate(-50%, -50%) rotate(-360deg) scale(1); }
}
@keyframes wave3 {
    0% { transform: translate(-50%, -50%) rotate(0deg) scale(0.9); }
    100% { transform: translate(-50%, -50%) rotate(360deg) scale(1); }
}

@keyframes blob {
	0% { transform: translate(0px, 0px) scale(1); }
	33% { transform: translate(30px, -50px) scale(1.1); }
	66% { transform: translate(-20px, 20px) scale(0.9); }
	100% { transform: translate(0px, 0px) scale(1); }
}
.animation-delay-2000 { animation-delay: 2s; }
.animation-delay-4000 { animation-delay: 4s; }
.animate-blob { animation: blob 7s infinite; }

.katex-display > .katex {
    white-space: normal;
}
.katex-display > .katex .katex-html {
    white-space: normal;
}

@keyframes validation-error-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}
.animate-validation-error {
  animation: validation-error-shake 0.3s ease-in-out;
}

@keyframes grid-pan {
  0% { background-position: 0% 0%; }
  100% { background-position: 100% 100%; }
}
.animate-grid-pan {
  animation: grid-pan 30s linear infinite alternate;
}

@keyframes twinkle {
    0%, 100% { opacity: 0; transform: scale(0.5); }
    50% { opacity: 1; transform: scale(1.2); }
}
.animate-twinkle {
    animation: twinkle 2s ease-in-out infinite;
}

/* Globally available blob animations */
@keyframes move-blob-1 { 0% { transform: translate(0, 0) scale(1); } 33% { transform: translate(30px, -50px) scale(1.1); } 66% { transform: translate(-20px, 40px) scale(0.9); } 100% { transform: translate(0, 0) scale(1); } }
@keyframes move-blob-2 { 0% { transform: translate(0, 0) scale(1); } 33% { transform: translate(-40px, 60px) scale(0.9); } 66% { transform: translate(50px, -30px) scale(1.2); } 100% { transform: translate(0, 0) scale(1); } }
@keyframes move-blob-3 { 0% { transform: rotate(0deg) scale(1); } 50% { transform: rotate(15deg) scale(1.05); } 100% { transform: rotate(0deg) scale(1); } }

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px 0px rgba(75, 155, 255, 0.4); }
  50% { box-shadow: 0 0 16px 4px rgba(75, 155, 255, 0.7); }
}
.animate-pulse-glow {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes prompt-glow-pan {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animate-prompt-glow {
  animation: prompt-glow-pan 6s ease-in-out infinite;
}

@keyframes fade-in-up { 0% { opacity: 0; transform: translateY(20px); } 100% { opacity: 1; transform: translateY(0); } }
.animate-fade-in-up { animation: fade-in-up 0.5s ease-out both; }

@keyframes shimmer {
  0% { transform: translateX(-100%) skewX(-15deg); }
  100% { transform: translateX(200%) skewX(-15deg); }
}
.animate-shimmer {
  animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
  100% {
    transform: translateX(100%);
  }
}

.animate-skeleton-shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transform: translateX(-100%);
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: skeleton-shimmer 1.5s infinite;
}

/* 
  Updated Glow Animation for Cards
  - Replaced 'outline' with 'box-shadow' to ensure the glow respects the card's border-radius.
  - Creates a soft blue pulse that hugs the rounded corners perfectly.
*/
@keyframes new-paper-glow {
  0% {
    box-shadow: 0 0 0 0px rgba(59, 130, 246, 0.0);
  }
  50% {
    box-shadow: 0 0 20px 5px rgba(59, 130, 246, 0.3), 0 0 0 2px rgba(59, 130, 246, 0.7);
  }
  100% {
    box-shadow: 0 0 0 0px rgba(59, 130, 246, 0.0);
  }
}

.animate-new-paper-glow {
  animation: new-paper-glow 2.0s ease-out 2;
}


/*
================================================================
  LAYER: PRINT STYLES
  Styles for printing/downloading papers and results.
================================================================
*/
@media print {
  /* Hide everything by default */
  body * {
    visibility: hidden;
  }

  /* Make the printable area and its children visible */
  .printable-area, .printable-area * {
    visibility: visible;
  }
  
  /* Reset layout for the printable area */
  .printable-area {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    padding: 20px;
    margin: 0;
    border: none !important;
    box-shadow: none !important;
    background: white !important;
  }

  /* Hide specific non-printable elements within the main area */
  .no-print, .no-print * {
    display: none !important;
  }
  
  /* Ensure KaTeX math renders at a reasonable size */
  .katex {
    font-size: 1em !important;
  }

  /* Prevent page breaks inside question cards */
  .mcq-question-container {
      page-break-inside: avoid;
  }

  /* Improve spacing for print */
  .printable-area .space-y-8 > :not([hidden]) ~ :not([hidden]) {
    margin-top: 1.5rem; /* Slightly reduce space between questions */
  }
}


/*
================================================================
  LAYER: LAYOUT
  (This layer is for global layout styles like main containers)
================================================================
*/


/*
================================================================
  LAYER: OVERRIDES
  (This layer is for page-specific or utility overrides)
================================================================
*/


/*
================================================================
  LAYER: IMPORTS
  Import new modular CSS files here.
================================================================
*/