/* ============================================
   TECHSCRIBE CSS - COMPLETE STYLESHEET
   Original design with darker gradient restored
   ============================================ */

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

:root {
  --purple: #7C3AED;
  --purple-dk: #5B21B6;
  --purple-lt: #EDE9FE;
  --purple-md: #DDD6FE;
  --bg: #F5F4FF;
  --bg-alt: #EDEAFF;
  --surface: #FFFFFF;
  --text-1: #1A1523;
  --text-2: #6B7280;
  --border: #DDD6FE;
  --border-lt: #EDE9FE;
  --green: #10B981;
  --font: 'Inter', sans-serif;
  --radius: 16px;
}

body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--text-1);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ========== HERO SECTION (Darker gradient restored) ========== */
.vai-hero {
  background: linear-gradient(160deg, #0F0A1E 0%, #1E0F3C 40%, #0F0A1E 100%);
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.vai-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.25) 0%, transparent 65%);
  pointer-events: none;
}

.vai-hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.vai-hero-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}

.vai-breadcrumb {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.vai-breadcrumb a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
}

.vai-breadcrumb a:hover {
  color: rgba(255, 255, 255, 0.7);
}

.vai-breadcrumb span {
  color: rgba(255, 255, 255, 0.2);
}

.vai-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.vai-hero h1 em {
  font-style: normal;
  color: #A78BFA;
}

.vai-hero-sub {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

/* ========== HERO PILLS / TOOL STRIP ========== */
.vai-tool-strip {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.vai-tool-pill {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 100px;
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.vai-tool-pill img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  border-radius: 3px;
}

.vai-tool-pill:hover {
  background: rgba(124, 58, 237, 0.3);
  border-color: rgba(124, 58, 237, 0.5);
  color: #fff;
}

/* ========== SECTION LABELS & TITLES ========== */
.vai-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.625rem;
  display: block;
}

.vai-section-title {
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 0.5rem;
}

.vai-section-sub {
  font-size: 0.9375rem;
  color: var(--text-2);
  margin-bottom: 2rem;
}

/* ========== INTRO SECTION ========== */
.vai-intro {
  background: var(--bg);
  padding: 3.5rem 2rem;
  border-bottom: 1px solid var(--border-lt);
}

.vai-intro-inner {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.vai-intro h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 0.875rem;
}

.vai-intro p {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.75;
}

/* ========== STATS ========== */
.vai-intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.vai-stat {
  background: var(--surface);
  border: 1px solid var(--border-lt);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.vai-stat-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--purple);
  letter-spacing: -0.04em;
  display: block;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.vai-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ========== USE CASES SECTION ========== */
.vai-usecases {
  background: var(--surface);
  padding: 3.5rem 2rem;
  border-bottom: 1px solid var(--border-lt);
}

.vai-usecases-inner {
  max-width: 960px;
  margin: 0 auto;
}

.vai-usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.vai-usecase-card {
  background: var(--bg);
  border: 1px solid var(--border-lt);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.vai-usecase-card:hover {
  border-color: var(--purple);
  transform: translateY(-2px);
}

.vai-usecase-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.vai-usecase-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 0.375rem;
}

.vai-usecase-desc {
  font-size: 0.8125rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.vai-usecase-tools {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.vai-tool-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--purple);
  background: var(--purple-lt);
  padding: 0.2rem 0.5rem;
  border-radius: 100px;
}

/* ========== QUIZ SECTION ========== */
.vai-quiz {
  background: var(--bg-alt);
  padding: 4rem 2rem;
  border-bottom: 1px solid var(--border-lt);
}

.vai-quiz-inner {
  max-width: 760px;
  margin: 0 auto;
}

.vai-quiz-header {
  margin-bottom: 2.5rem;
}

.vai-quiz-card {
  background: var(--surface);
  border: 1px solid var(--border-lt);
  border-radius: 20px;
  padding: 2rem;
  margin-bottom: 1rem;
}

.vai-quiz-q {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.vai-q-num {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--purple);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  margin-top: 1px;
}

.vai-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-left: 2.5rem;
}

.vai-option {
  background: var(--bg);
  border: 1.5px solid var(--border-lt);
  border-radius: 10px;
  padding: 0.625rem 0.875rem;
  font-size: 0.8375rem;
  font-weight: 500;
  color: var(--text-1);
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  font-family: var(--font);
}

.vai-option:hover {
  border-color: var(--purple);
  background: var(--purple-lt);
  color: var(--purple);
}

.vai-option.selected {
  border-color: var(--purple);
  background: var(--purple);
  color: #fff;
}

.vai-quiz-progress {
  background: var(--border-lt);
  border-radius: 100px;
  height: 4px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.vai-quiz-progress-bar {
  height: 100%;
  background: var(--purple);
  border-radius: 100px;
  width: 0%;
  transition: width 0.3s ease;
}

.vai-quiz-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  align-items: center;
}

.vai-btn-primary {
  background: var(--purple);
  color: #fff;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 0.75rem 1.75rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
}

.vai-btn-primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.vai-btn-ghost {
  background: transparent;
  color: var(--text-2);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
}

.vai-btn-ghost:hover {
  border-color: var(--purple);
  color: var(--purple);
}

/* ========== QUIZ RESULTS ========== */
.vai-result {
  display: none;
  background: var(--surface);
  border: 2px solid var(--purple);
  border-radius: 20px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.vai-result.show {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.vai-result-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.5rem;
  display: block;
}

.vai-result-tool {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 12px;
}

.vai-result-tool img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 6px;
  background: #f3f4f6;
  padding: 4px;
}

.vai-result-reason {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.vai-result-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.vai-result-link {
  background: var(--purple);
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.625rem 1.375rem;
  border-radius: 100px;
  transition: opacity 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.vai-result-link:hover {
  opacity: 0.85;
}

.vai-result-browse {
  font-size: 0.875rem;
  color: var(--text-2);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: color 0.15s;
}

.vai-result-browse:hover {
  color: var(--purple);
  border-color: var(--purple);
}

/* ========== TOOLS GRID SECTION ========== */
.vai-tools {
  background: var(--surface);
  padding: 4rem 2rem;
  border-bottom: 1px solid var(--border-lt);
}

.vai-tools-inner {
  max-width: 960px;
  margin: 0 auto;
}

.vai-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.vai-tool-card {
  background: var(--bg);
  border: 1px solid var(--border-lt);
  border-radius: 20px;
  padding: 1.5rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  color: inherit;
}

.vai-tool-card:hover {
  border-color: var(--purple);
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.1);
  transform: translateY(-3px);
}

.vai-tool-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.vai-tool-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  overflow: hidden;
}

.vai-tool-icon img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 8px;
}

.vai-tool-arrow {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-2);
  transition: all 0.15s;
}

.vai-tool-card:hover .vai-tool-arrow {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
}

.vai-tool-name {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.02em;
}

.vai-tool-tagline {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--purple);
}

.vai-tool-desc {
  font-size: 0.8375rem;
  color: var(--text-2);
  line-height: 1.65;
  flex: 1;
}

.vai-tool-meta {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.vai-meta-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 100px;
}

/* ========== SCENARIO GUIDE SECTION ========== */
.vai-choose {
  background: var(--surface);
  padding: 4rem 2rem;
}

.vai-choose-inner {
  max-width: 960px;
  margin: 0 auto;
}

.vai-choose-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.vai-choose-card {
  background: var(--bg);
  border: 1px solid var(--border-lt);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
  color: inherit;
}

.vai-choose-card:hover {
  border-color: var(--purple);
  transform: translateY(-2px);
}

.vai-choose-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--purple-lt);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vai-choose-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.vai-choose-text {
  flex: 1;
}

.vai-choose-scenario {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 0.25rem;
  line-height: 1.4;
}

.vai-choose-rec {
  font-size: 1rem;
  font-weight: 800;
  color: var(--purple);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.vai-choose-arr {
  color: var(--text-2);
  font-size: 0.875rem;
  margin-top: 2px;
  transition: color 0.15s, transform 0.15s;
}

.vai-choose-card:hover .vai-choose-arr {
  color: var(--purple);
  transform: translateX(3px);
}

/* ========== BOTTOM CTA SECTION ========== */
.vai-bottom-cta {
  background: linear-gradient(135deg, #2D1B69, #1A1523);
  padding: 4rem 2rem;
  text-align: center;
}

.vai-bottom-cta-inner {
  max-width: 560px;
  margin: 0 auto;
}

.vai-bottom-cta h2 {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.04em;
  margin-bottom: 0.875rem;
  line-height: 1.15;
}

.vai-bottom-cta p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.vai-bottom-cta-btn {
  background: #fff;
  color: var(--purple);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 800;
  padding: 0.875rem 2rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity 0.15s;
}

.vai-bottom-cta-btn:hover {
  opacity: 0.88;
}

/* ========== RESPONSIVE BREAKPOINTS ========== */
@media (max-width: 900px) {
  .vai-intro-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .vai-usecase-grid {
    grid-template-columns: 1fr;
  }
  .vai-tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .vai-choose-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .vai-tools-grid {
    grid-template-columns: 1fr;
  }
  .vai-options {
    grid-template-columns: 1fr;
    margin-left: 0;
  }
  .vai-intro-stats {
    grid-template-columns: 1fr 1fr;
  }
  .vai-quiz-card {
    padding: 1rem;
  }
}



/* Categories dropdown */
.product-btn {
  cursor: pointer;
  background: transparent;
  border: none;
  font-weight: 600;
}

.product-cat {
  display: none;
  position: absolute;
  background: #fff;
  border: 1px solid #DDD6FE;
  border-radius: 12px;
  padding: 8px 0;
  min-width: 220px;
  z-index: 9999;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.position-relative:hover .product-cat {
  display: block;
}

.product-cat ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.product-cat ul li a {
  display: block;
  padding: 10px 20px;
  color: #1A1523;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.product-cat ul li a:hover {
  background: #EDE9FE;
  color: #7C3AED;
}