@import url("https://fonts.googleapis.com/css2?family=Edu+VIC+WA+NT+Hand+Pre:wght@400..700&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap");

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #f7941d;
  --primary-dark: #c36b00;
  --secondary: #00a3cc;
  --accent: #28b8cc;
  --dark: #111111;
  --dark-light: #262626;
  --white: #ffffff;
  --gray-50: #f9fbfc;
  --gray-100: #ecefff;
  --gray-200: #d6deff;
  --gray-300: #b3c6d9;
  --gray-400: #879cd9;
  --gray-500: #546fd9;
  --gray-600: #4156a6;
  --gray-700: #2b3f73;
  --gray-800: #1a2452;
  --gray-900: #111529;
  --radius: 0.5rem;
  --large-radius: 30px;
  --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1.0);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--gray-900);
  background-color: var(--white);
  overflow-x: hidden;
  margin: 0;
  width: 100%;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  box-sizing: border-box;
}

/* Header */
.header {
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom right, var(--dark), var(--dark-light));
  padding: 0.75rem 0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header-content {
  text-align: center;
  margin-bottom: 1.5rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.text-accent {
  color: var(--primary);
}

.nav-tabs {
  display: flex;
  justify-content: center;
}

.tabs-list {
  display: flex;
  max-width: 40rem;
  margin: 0 auto;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--large-radius);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.tab-button {
  flex: 1;
  padding: 0.45rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--large-radius);
  font-weight: 500;
  font-size: 0.875rem;
  transition: var(--transition);
  text-align: center;
  color: var(--gray-300);
}

.tab-button:hover {
  background-color: var(--secondary);
  color: var(--white);
}

.tab-button.active {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 6px rgba(247, 148, 29, 0.25);
}

/* Main Content */
.main-content {
  padding: 6rem 0;
}

.tab-content {
  display: none;
  opacity: 0;
  transition: var(--transition);
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Section Header */
.section-header {
  max-width: 48rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.badge {
  display: inline-block;
  padding: 0.68rem 1rem;
  border-radius: 9999px;
  background-color: rgba(247, 148, 29, 0.167);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 1.7rem;
  color: var(--dark);
  margin-bottom: 1rem;
  font-weight: 400;
}

.title-line {
  height: 1px;
  width: 5rem;
  background-color: var(--primary);
  margin: 1rem auto 1.5rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin-top: 1rem;
}

/* Services Grid */
.services-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background-color: var(--white);
  border-radius: var(--large-radius);
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  will-change: transform, box-shadow;
  width: 100%;
  max-width: 900px;
  border: 1px solid var(--gray-200);
}

.service-card:hover {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.service-card.large-card {
  max-width: 100%;
  width: 100%;
}

.service-card.accessibility-card {
  max-width: 100%;
  width: 100%;
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.icon {
  font-size: 1.5rem;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.service-description {
  color: var(--gray-600);
  margin-bottom: 1rem;
}

/* File Structure */
.file-structure {
  background-color: var(--gray-50);
  border-radius: var(--large-radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border: 1px solid var(--gray-200);
}

.file-item {
  display: flex;
  align-items: center;
  padding: 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 0.5rem;
}

.file-item:hover {
  background-color: var(--gray-100);
  color: var(--primary);
  transform: translateX(5px);
}

.file-icon {
  margin-right: 0.75rem;
  font-size: 1.125rem;
}

.file-name {
  font-weight: 500;
}

.file-children {
  margin-left: 2rem;
  border-left: 2px solid var(--gray-300);
  padding-left: 1rem;
}

.alert-warning {
  background-color: rgba(247, 148, 29, 0.1);
  border-left: 4px solid var(--primary);
  color: #c36b00;
  padding: 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 1.5rem;
}

/* Accessibility Features */
.accessibility-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: var(--gray-50);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.feature-card:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.feature-card.contrast-checker {
  grid-column: 1 / -1;
}

.feature-card.test-required {
  background-color: rgba(0, 163, 204, 0.05);
  border-color: var(--secondary);
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width: 400px;
  margin: 0 auto;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.feature-description {
  font-size: 0.875rem;
  color: var(--gray-600);
}

/* Contrast Tool */
.contrast-tool {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  margin-top: 1rem;
  align-items: center;
}

.color-inputs {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
}

.input-group input[type="color"] {
  width: 100%;
  height: 3rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  cursor: pointer;
}

.contrast-preview {
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--gray-300);
  background-color: #ffffff;
  color: #111529;
}

#previewText {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.contrast-info {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

#contrastRatio {
  font-weight: 700;
}

.contrast-pass {
  color: #0d9488;
  font-weight: 700;
}

.contrast-fail {
  color: #ef4444;
  font-weight: 700;
}

/* Timeline */
.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 2rem;
}

.timeline-line {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--gray-300);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  cursor: pointer;
  transition: var(--transition);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--white);
  border: 4px solid var(--secondary);
  transition: var(--transition);
}

.timeline-item:hover::before {
  background-color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-50%) scale(1.1);
}

.timeline-content {
  background-color: var(--white);
  border-radius: var(--large-radius);
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.timeline-item:hover .timeline-content {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.timeline-header {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.timeline-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: var(--secondary);
  color: var(--white);
  font-size: 1.25rem;
  margin-right: 1rem;
  transition: var(--transition);
}

.timeline-item:hover .timeline-icon {
  background-color: var(--accent);
}

.timeline-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  transition: var(--transition);
}

.timeline-item:hover .timeline-title {
  color: var(--primary);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s cubic-bezier(0.25, 0.1, 0.25, 1.0), visibility 0.5s;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0);
  backdrop-filter: blur(0px);
  transition: background-color 0.5s cubic-bezier(0.25, 0.1, 0.25, 1.0), backdrop-filter 0.7s cubic-bezier(0.25, 0.1, 0.25, 1.0);
}

.modal.active .modal-backdrop {
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background-color: var(--white);
  border-radius: var(--large-radius);
  padding: 2rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 500px;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  transition: var(--transition);
  padding: 0.5rem;
  border-radius: 50%;
}

.modal-close:hover {
  color: var(--gray-600);
  background-color: var(--gray-100);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
}

.modal-description {
  color: var(--gray-600);
  margin-bottom: 1rem;
}

.modal-details {
  border-top: 1px solid var(--gray-200);
  padding-top: 1rem;
  margin-top: 1rem;
}

.modal-details h5 {
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.modal-details p {
  color: var(--gray-600);
  margin-bottom: 1rem;
}

.modal-details .alert-warning {
  margin-top: 1rem;
  margin-bottom: 0;
}

/* Responsive Design */
@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }

  .logo-text {
    font-size: 2.25rem;
  }

  .section-title {
    font-size: 2.5rem;
  }

  .services-grid {
    justify-content: center;
  }

  .contrast-tool {
    grid-template-columns: 1fr 2fr;
  }
}

@media (min-width: 768px) {
  .services-grid {
    justify-content: center;
  }

  .accessibility-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .logo-text {
    font-size: 2.75rem;
  }

  .services-grid {
    justify-content: center;
  }

  .service-card.large-card,
  .service-card.accessibility-card {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .tabs-list {
    flex-direction: column;
    gap: 0.5rem;
  }

  .tab-button {
    padding: 1rem;
  }

  .contrast-tool {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .color-inputs {
    flex-direction: row;
    gap: 1rem;
  }

  .timeline-container {
    padding-left: 1rem;
  }

  .timeline-item::before {
    left: -21px;
  }
}