/**
 * NIT Rourkela - Modern Accessibility Tools Widget Stylesheet
 * Strictly conforms to GIGW 3.0 & WCAG 2.1 Level AA / AAA
 * Standalone Integration File for https://nitrkl.ac.in
 */

@import url('https://fonts.cdnfonts.com/css/open-dyslexic');

/* ==========================================================================
   1. Root Variables & Reset Scoping
   ========================================================================== */
:root {
    --nitrkl-acc-font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --nitrkl-acc-primary: #c35839;
    --nitrkl-acc-primary-hover: #a9482e;
    --nitrkl-acc-blue-bg: #eef2ff;
    --nitrkl-acc-blue-text: #3b82f6;
    --nitrkl-acc-blue-hover: #e0e7ff;
    --nitrkl-acc-green-bg: #ecfdf5;
    --nitrkl-acc-green-text: #059669;
    --nitrkl-acc-green-hover: #d1fae5;
    --nitrkl-acc-peach-bg: #fff7ed;
    --nitrkl-acc-peach-text: #ea580c;
    --nitrkl-acc-peach-hover: #ffedd5;
    --nitrkl-acc-gray-bg: #f1f5f9;
    --nitrkl-acc-gray-text: #334155;
    --nitrkl-acc-gray-hover: #e2e8f0;
    --nitrkl-acc-shadow: 0 20px 45px -10px rgba(15, 23, 42, 0.18), 0 0 0 1px rgba(15, 23, 42, 0.08);
}

/* ==========================================================================
   2. Floating Trigger Button (Left Edge)
   ========================================================================== */
.nitrkl-acc-trigger {
  position: fixed;
  left: 0;
  top: 40%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: var(--nitrkl-acc-primary);
  color: #ffffff;
  border: none;
  border-radius: 0 14px 14px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
  z-index: 999998;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
  padding: 0;
}

.nitrkl-acc-trigger:hover,
.nitrkl-acc-trigger:focus-visible {
  background: var(--nitrkl-acc-primary-hover);
  width: 54px;
  box-shadow: 0 10px 28px rgba(29, 78, 216, 0.45);
}

.nitrkl-acc-trigger:focus-visible {
  outline: 3px solid #facc15;
  outline-offset: 2px;
}

.nitrkl-acc-trigger-icon {
  width: 26px;
  height: 26px;
  fill: #ffffff;
  pointer-events: none;
}

.nitrkl-acc-trigger.active {
    background: #a9482e;
}

/* Badge for active count */
.nitrkl-acc-count-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ef4444;
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 2px 6px;
  line-height: 1;
  border: 2px solid #ffffff;
  display: none;
}

.nitrkl-acc-count-badge.visible {
  display: block;
}

/* ==========================================================================
   3. Accessibility Modal / Card Flyout
   ========================================================================== */
.nitrkl-acc-card {
  position: fixed;
  left: 62px;
  top: 40%;
  transform: translateY(-50%) translateX(-15px) scale(0.97);
  width: 350px;
  max-width: calc(100vw - 80px);
  max-height: 85vh;
  background: #ffffff;
  border-radius: 20px;
  box-shadow: var(--nitrkl-acc-shadow);
  z-index: 999999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.22s;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--nitrkl-acc-font);
  color: #1e293b;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.nitrkl-acc-card.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0) scale(1);
}

/* Backdrop for Mobile or Click-outside */
.nitrkl-acc-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.25);
  backdrop-filter: blur(2px);
  z-index: 999997;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s;
}

.nitrkl-acc-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* Header */
.nitrkl-acc-header {
  padding: 20px 22px 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #f1f5f9;
}

.nitrkl-acc-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.01em;
}

.nitrkl-acc-close-btn {
  background: transparent;
  border: none;
  color: #64748b;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 18px;
  line-height: 1;
}

.nitrkl-acc-close-btn:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.nitrkl-acc-close-btn:focus-visible {
  outline: 2px solid var(--nitrkl-acc-primary);
}

/* Body / Scrollable Content */
.nitrkl-acc-body {
  padding: 16px 22px 22px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 transparent;
}

.nitrkl-acc-body::-webkit-scrollbar {
  width: 6px;
}

.nitrkl-acc-body::-webkit-scrollbar-thumb {
  background-color: #cbd5e1;
  border-radius: 10px;
}

/* Category Sections */
.nitrkl-acc-group {
  display: flex;
  flex-direction: column;
}

.nitrkl-acc-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 10px;
}

/* 2-Column Grid for Buttons */
.nitrkl-acc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

/* Base Pill Button */
.nitrkl-acc-btn {
  border: none;
  border-radius: 12px;
  padding: 10px 8px;
  font-size: 12.5px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  line-height: 1.25;
  user-select: none;
  font-family: inherit;
  outline: none;
  position: relative;
  min-height: 42px;
}

.nitrkl-btn-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  stroke-width: 2;
  pointer-events: none;
  transition: transform 0.2s ease;
}

.nitrkl-acc-btn:hover .nitrkl-btn-icon {
  transform: scale(1.15);
}

.nitrkl-acc-btn:focus-visible {
  outline: 3px solid #facc15 !important;
  outline-offset: 2px !important;
}

/* Text Adjustments & Navigation (Blue Pills) */
.nitrkl-btn-blue {
  background: var(--nitrkl-acc-blue-bg);
  color: var(--nitrkl-acc-blue-text);
}

.nitrkl-btn-blue:hover {
  background: var(--nitrkl-acc-blue-hover);
  color: #2563eb;
  transform: translateY(-1px);
}

.nitrkl-btn-blue.active {
  background: #2563eb;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

/* Visual Preferences (Green Pills) */
.nitrkl-btn-green {
  background: var(--nitrkl-acc-green-bg);
  color: var(--nitrkl-acc-green-text);
}

.nitrkl-btn-green:hover {
  background: var(--nitrkl-acc-green-hover);
  color: #047857;
  transform: translateY(-1px);
}

.nitrkl-btn-green.active {
  background: #059669;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.35);
}

/* Reading Assistance (Peach Pills) */
.nitrkl-btn-peach {
  background: var(--nitrkl-acc-peach-bg);
  color: var(--nitrkl-acc-peach-text);
}

.nitrkl-btn-peach:hover {
  background: var(--nitrkl-acc-peach-hover);
  color: #c2410c;
  transform: translateY(-1px);
}

.nitrkl-btn-peach.active {
  background: #ea580c;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(234, 88, 12, 0.35);
}

/* Active Indicator Pip */
.nitrkl-acc-btn.active::after {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
  opacity: 0.9;
}

/* Reset All Settings Button (Full Width Gray) */
.nitrkl-btn-reset {
  background: var(--nitrkl-acc-gray-bg);
  color: var(--nitrkl-acc-gray-text);
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
}

.nitrkl-btn-reset:hover {
  background: var(--nitrkl-acc-gray-hover);
  color: #0f172a;
}

.nitrkl-btn-reset:active {
  background: #cbd5e1;
}

.nitrkl-reset-icon {
  width: 15px;
  height: 15px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.nitrkl-btn-reset:hover .nitrkl-reset-icon {
  transform: rotate(-180deg);
}

/* Toast Notification for Announcements */
.nitrkl-acc-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: #0f172a;
  color: #ffffff;
  padding: 10px 18px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  z-index: 1000000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nitrkl-acc-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   4. Feature Effect Classes (Applied to Document / Body)
   ========================================================================== */

/* --- A. Dyslexic Font --- */
body.nitrkl-mode-dyslexic,
body.nitrkl-mode-dyslexic *:not(.nitrkl-acc-icon):not([class*="bi-"]):not([class*="fa-"]) {
  font-family: 'OpenDyslexic', 'Comic Sans MS', sans-serif !important;
  letter-spacing: 0.03em !important;
}

/* --- B. Line Height --- */
body.nitrkl-mode-line-height-1,
body.nitrkl-mode-line-height-1 p,
body.nitrkl-mode-line-height-1 li,
body.nitrkl-mode-line-height-1 a,
body.nitrkl-mode-line-height-1 span {
  line-height: 1.8 !important;
}

body.nitrkl-mode-line-height-2,
body.nitrkl-mode-line-height-2 p,
body.nitrkl-mode-line-height-2 li,
body.nitrkl-mode-line-height-2 a,
body.nitrkl-mode-line-height-2 span {
  line-height: 2.1 !important;
}

/* --- C. Letter Spacing --- */
body.nitrkl-mode-letter-spacing-1,
body.nitrkl-mode-letter-spacing-1 p,
body.nitrkl-mode-letter-spacing-1 h1,
body.nitrkl-mode-letter-spacing-1 h2,
body.nitrkl-mode-letter-spacing-1 h3,
body.nitrkl-mode-letter-spacing-1 a,
body.nitrkl-mode-letter-spacing-1 span,
body.nitrkl-mode-letter-spacing-1 li {
  letter-spacing: 0.12em !important;
  word-spacing: 0.16em !important;
}

body.nitrkl-mode-letter-spacing-2,
body.nitrkl-mode-letter-spacing-2 p,
body.nitrkl-mode-letter-spacing-2 h1,
body.nitrkl-mode-letter-spacing-2 h2,
body.nitrkl-mode-letter-spacing-2 h3,
body.nitrkl-mode-letter-spacing-2 a,
body.nitrkl-mode-letter-spacing-2 span,
body.nitrkl-mode-letter-spacing-2 li {
  letter-spacing: 0.20em !important;
  word-spacing: 0.25em !important;
}

/* --- D. Invert Colors --- */
html.nitrkl-mode-invert {
  filter: invert(1) hue-rotate(180deg) !important;
  background-color: #ffffff !important;
}

html.nitrkl-mode-invert img,
html.nitrkl-mode-invert video,
html.nitrkl-mode-invert picture,
html.nitrkl-mode-invert canvas,
html.nitrkl-mode-invert .nitrkl-acc-card,
html.nitrkl-mode-invert .nitrkl-acc-trigger {
  filter: invert(1) hue-rotate(180deg) !important;
}

/* --- E. High Contrast Mode --- */
html.nitrkl-mode-high-contrast {
  background-color: #000000 !important;
  color: #ffffff !important;
}

html.nitrkl-mode-high-contrast body {
  background-color: #000000 !important;
  color: #ffffff !important;
}

html.nitrkl-mode-high-contrast *:not(.nitrkl-acc-card):not(.nitrkl-acc-card *):not(.nitrkl-acc-trigger):not(.nitrkl-acc-trigger *) {
  background-color: #000000 !important;
  color: #ffffff !important;
  border-color: #facc15 !important;
}

html.nitrkl-mode-high-contrast a:not(.nitrkl-acc-btn) {
  color: #fde047 !important;
  text-decoration: underline !important;
}

html.nitrkl-mode-high-contrast a:hover:not(.nitrkl-acc-btn) {
  background-color: #262626 !important;
  color: #ffffff !important;
}

html.nitrkl-mode-high-contrast h1,
html.nitrkl-mode-high-contrast h2,
html.nitrkl-mode-high-contrast h3,
html.nitrkl-mode-high-contrast h4,
html.nitrkl-mode-high-contrast h5,
html.nitrkl-mode-high-contrast h6 {
  color: #facc15 !important;
}

html.nitrkl-mode-high-contrast button:not(.nitrkl-acc-btn) {
  background-color: #171717 !important;
  color: #facc15 !important;
  border: 2px solid #facc15 !important;
}

/* --- F. Saturation Controls --- */
html.nitrkl-mode-sat-increase {
  filter: saturate(200%) !important;
}

html.nitrkl-mode-sat-decrease {
  filter: saturate(30%) grayscale(50%) !important;
}

/* --- G. Highlight Links --- */
body.nitrkl-mode-highlight-links a:not(.nitrkl-acc-ignore):not(.nitrkl-acc-btn) {
  background-color: #fef08a !important;
  color: #000000 !important;
  text-decoration: underline 3px solid #000000 !important;
  outline: 2px solid #ca8a04 !important;
  outline-offset: 2px !important;
  font-weight: 700 !important;
  border-radius: 2px !important;
  padding: 0 2px !important;
}

/* --- H. Big Cursor --- */
body.nitrkl-mode-big-cursor,
body.nitrkl-mode-big-cursor * {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 24 24' fill='%23000000' stroke='%23ffffff' stroke-width='1.5'%3E%3Cpath d='M4 3l12 12-5 1 3 6-3 1.5-3-6-4 4.5z'/%3E%3C/svg%3E"), auto !important;
}

/* --- I. Toggle Images (Hide Images) --- */
body.nitrkl-mode-hide-images img:not(.nitrkl-acc-icon),
body.nitrkl-mode-hide-images picture,
body.nitrkl-mode-hide-images svg:not(.nitrkl-acc-trigger-icon):not(.nitrkl-reset-icon),
body.nitrkl-mode-hide-images [style*="background-image"]:not(.nitrkl-acc-card) {
  opacity: 0.05 !important;
  filter: grayscale(100%) blur(4px) !important;
  outline: 2px dashed #94a3b8 !important;
}

/* --- J. Check Images (Alt Text Inspection Badges) --- */
.nitrkl-img-check-wrapper {
  position: relative !important;
  display: inline-block !important;
  max-width: 100% !important;
}

.nitrkl-img-check-badge {
  position: absolute !important;
  top: 6px !important;
  left: 6px !important;
  font-family: var(--nitrkl-acc-font) !important;
  font-size: 11px !important;
  line-height: 1.2 !important;
  padding: 4px 8px !important;
  border-radius: 6px !important;
  font-weight: 700 !important;
  z-index: 9999 !important;
  pointer-events: none !important;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3) !important;
  max-width: calc(100% - 12px) !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
}

.nitrkl-img-check-badge.ok {
  background: #166534 !important;
  color: #ffffff !important;
  border: 1px solid #22c55e !important;
}

.nitrkl-img-check-badge.missing {
  background: #991b1b !important;
  color: #ffffff !important;
  border: 1px solid #ef4444 !important;
  animation: nitrkl-pulse 1.6s infinite !important;
}

@keyframes nitrkl-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.04); opacity: 0.85; }
}

.nitrkl-img-check-missing {
  outline: 4px dashed #ef4444 !important;
  outline-offset: 2px !important;
}

.nitrkl-img-check-ok {
  outline: 3px solid #22c55e !important;
  outline-offset: 2px !important;
}

/* ==========================================================================
   5. Mobile Responsiveness & Breakpoints
   ========================================================================== */
@media (max-width: 640px) {
  .nitrkl-acc-trigger {
    top: auto;
    bottom: 20px;
    transform: none;
    border-radius: 14px;
    left: 16px;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
  }

  .nitrkl-acc-card {
    left: 12px;
    right: 12px;
    top: auto;
    bottom: 80px;
    width: auto;
    max-width: none;
    max-height: 75vh;
    transform: translateY(20px) scale(0.96);
  }

  .nitrkl-acc-card.open {
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   6. Print Style Isolation
   ========================================================================== */
@media print {
  .nitrkl-acc-trigger,
  .nitrkl-acc-card,
  .nitrkl-acc-backdrop,
  .nitrkl-acc-toast,
  .nitrkl-img-check-badge {
    display: none !important;
  }
}