/* ==========================================================================
   #PRIZMA EDGE - Main Stylesheet
   ========================================================================== */

:root {
  --color-primary: #2E2E6E;
  --color-primary-dark: #1F1F4E;
  --color-primary-gradient-start: #2E2E6E;
  --color-primary-gradient-end: #1F1F4E;
  --color-accent: #9D9DFA;
  --color-accent-highlight: #B976FF;
  --color-accent-glow: rgba(185, 118, 255, 0.25);
  --color-white: #ffffff;
  --color-text-main: #333333;
  --color-text-light: #666666;
  --color-bg-light: #F8F9FA;
  --color-bg-card: #ffffff;
  --color-border: #E5E7EB;

  --font-family-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 5rem;
  --container-width: 1300px;

  --transition-base: all 0.3s ease;
  --radius-card: 24px;
  --radius-btn: 50px;
  --shadow-card: 0 8px 24px rgba(46, 46, 110, 0.1);
  --shadow-card-hover: 0 16px 40px rgba(46, 46, 110, 0.2);
}

/* ==========================================================================
   #SKIP LINK (keyboard accessibility)
   ========================================================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-accent-highlight);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 12px 12px;
  font-weight: 700;
  font-size: 0.9rem;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ==========================================================================
   #RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-family-main);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text-main);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

a { text-decoration: none; color: inherit; transition: var(--transition-base); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* ==========================================================================
   #BUTTONS
   ========================================================================== */
.btn {
  display: inline-block;
  padding: 0.85rem 2.5rem;
  border-radius: var(--radius-btn);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  transition: var(--transition-base);
  font-size: 0.85rem;
}

.btn-primary {
  background-color: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}
.btn-primary:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent-highlight), var(--color-accent));
  border: none;
  color: var(--color-white);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-accent-glow);
  opacity: 0.92;
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-accent {
  background-color: transparent;
  border: 2px solid var(--color-accent-highlight);
  color: var(--color-accent-highlight);
}
.btn-outline-accent:hover {
  background-color: var(--color-accent-highlight);
  color: var(--color-white);
}

.btn-sm { padding: 0.6rem 1.6rem; font-size: 0.8rem; }

/* ==========================================================================
   #HEADER & NAV
   ========================================================================== */
.header {
  background-color: transparent;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  padding: 1.4rem 0;
  transition: background 0.35s ease, box-shadow 0.35s ease, padding 0.3s ease;
}

.header.scrolled {
  background-color: var(--color-primary-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  padding: 0.9rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-white);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
}
.logo img {
  height: 44px;
  filter: brightness(0) invert(1);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links > li { position: relative; }

.nav-links a {
  font-weight: 500;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.82);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.nav-links a:hover,
.nav-links a.active { color: var(--color-white); }

/* Dropdown */
.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}
.dropdown-toggle::after {
  content: '▾';
  font-size: 0.7rem;
  opacity: 0.7;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 1rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary-dark);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 1rem 0;
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  transform: translateX(-50%) translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.nav-links > li:hover .nav-dropdown,
.nav-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown li a {
  display: block;
  padding: 0.55rem 1.4rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.8);
  text-transform: none;
  letter-spacing: 0;
  white-space: nowrap;
  border-left: 3px solid transparent;
}
.nav-dropdown li a:hover {
  color: var(--color-accent-highlight);
  border-left-color: var(--color-accent-highlight);
  background: rgba(255,255,255,0.04);
}
.nav-dropdown .dropdown-category {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.75rem 1.4rem 0.25rem;
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--color-white);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.25rem;
}

/* ==========================================================================
   #BREADCRUMB
   ========================================================================== */
.breadcrumb {
  padding: 7rem 0 0;
  background: linear-gradient(135deg, var(--color-primary-gradient-start), var(--color-primary-gradient-end));
}
.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  padding-bottom: 1rem;
}
.breadcrumb-inner a { color: rgba(255,255,255,0.6); }
.breadcrumb-inner a:hover { color: var(--color-white); }
.breadcrumb-inner .sep { color: rgba(255,255,255,0.3); }
.breadcrumb-inner .current { color: rgba(255,255,255,0.9); }

/* ==========================================================================
   #HERO SECTION (index)
   ========================================================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary-gradient-start) 0%, var(--color-primary-gradient-end) 100%);
  background-image: url('../assets/background.webp');
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
  color: var(--color-white);
  padding: 13rem 0 11rem;
  display: flex;
  align-items: center;
  position: relative;
  overflow: visible;
  border-bottom-left-radius: 50% 100px;
  border-bottom-right-radius: 50% 100px;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(46,46,110,0.5) 0%, rgba(31,31,78,0.3) 100%);
  z-index: 1;
}

.hero-content {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 4rem;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.1;
}
.hero h1 span.highlight { color: var(--color-accent-highlight); }

.hero p {
  font-size: 1.2rem;
  margin-bottom: 0;
  opacity: 0.88;
  font-weight: 300;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

/* ==========================================================================
   #PRODUCT HERO (product pages)
   ========================================================================== */
.product-hero {
  background: linear-gradient(135deg, var(--color-primary-gradient-start) 0%, var(--color-primary-gradient-end) 100%);
  background-image: url('../assets/background.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  padding: 10rem 0 6rem;
  position: relative;
  border-bottom-left-radius: 50% 80px;
  border-bottom-right-radius: 50% 80px;
  overflow: hidden;
}
.product-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(46,46,110,0.7) 0%, rgba(31,31,78,0.5) 100%);
}

.product-hero .container {
  position: relative;
  z-index: 2;
}

.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.product-hero-text h1 {
  font-size: 3.2rem;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.product-hero-text .product-subtitle {
  font-size: 1.1rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.product-hero-text p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  font-weight: 300;
  line-height: 1.75;
  margin-bottom: 2rem;
}
.product-hero-text .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.product-hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}
.product-hero-image img {
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
  max-height: 380px;
  object-fit: cover;
  width: 100%;
}
.product-hero-image .img-placeholder {
  background: rgba(255,255,255,0.08);
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: 20px;
  width: 100%;
  height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
}

/* ==========================================================================
   #TAGS
   ========================================================================== */
.tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.tag-accent {
  background: rgba(185,118,255,0.18);
  color: var(--color-accent-highlight);
  border: 1px solid rgba(185,118,255,0.3);
}
.tag-primary {
  background: rgba(46,46,110,0.1);
  color: var(--color-primary);
  border: 1px solid rgba(46,46,110,0.2);
}

/* ==========================================================================
   #OFFERINGS SECTION (index)
   ========================================================================== */
.offerings {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-bg-light);
}

.section-header {
  text-align: left;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}
.section-header h2 {
  font-size: 2rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.category-header {
  display: flex;
  align-items: center;
  margin-bottom: 2rem;
  margin-top: 3rem;
}
.category-bar {
  width: 5px;
  height: 28px;
  background: linear-gradient(to bottom, var(--color-accent-highlight), var(--color-accent));
  margin-right: 1rem;
  border-radius: 4px;
}
.category-title {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 0;
}

.offerings-grid-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  position: relative;
  height: 300px;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.card-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e8e8f8 0%, #d8d8ee 100%);
  position: relative;
  overflow: hidden;
}
.card-img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.card:hover .card-img-placeholder img {
  transform: scale(1.05);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,31,78,0.85) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.card:hover .card-overlay { opacity: 1; }
.card-overlay p {
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.card-overlay .btn-sm {
  align-self: flex-start;
}

.card-label {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(255,255,255,0.97);
  padding: 0.45rem 1.4rem;
  border-radius: 50px;
  font-weight: 600;
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  white-space: nowrap;
  font-size: 0.88rem;
  transition: var(--transition-base);
}
.card:hover .card-label {
  background: var(--color-accent-highlight);
  color: var(--color-white);
}

/* ==========================================================================
   #WHY PRIZMA EDGE SECTION
   ========================================================================== */
.why-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-white);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

.why-card {
  padding: 2.5rem 2rem;
  border-radius: var(--radius-card);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
  text-align: center;
}
.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}
.why-card .icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-accent-highlight), var(--color-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 1.6rem;
}
.why-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}
.why-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* ==========================================================================
   #STATS SECTION
   ========================================================================== */
.stats-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--color-primary-gradient-start), var(--color-primary-gradient-end));
  color: var(--color-white);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}
.stat-item {}
.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent-highlight);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-label {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   #ABOUT SECTION
   ========================================================================== */
.about-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-bg-light);
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-text h2 { margin-bottom: 1.25rem; }
.about-text p {
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.about-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card-hover);
}
.about-image img { width: 100%; height: 400px; object-fit: cover; }
.about-image .about-img-placeholder {
  height: 400px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.9rem;
}

/* ==========================================================================
   #CTA SECTION
   ========================================================================== */
.cta-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--color-primary-gradient-start) 0%, var(--color-primary-gradient-end) 100%);
  text-align: center;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(185,118,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 {
  font-size: 2.5rem;
  color: var(--color-white);
  margin-bottom: 1rem;
}
.cta-section p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.cta-section .cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   #CONTACT SECTION
   ========================================================================== */
.contact-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-white);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}
.contact-info h2 { margin-bottom: 1rem; }
.contact-info p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 2rem;
}
.contact-detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 14px;
  background: var(--color-bg-light);
}
.contact-detail .detail-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-highlight), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-detail .detail-text { font-size: 0.9rem; color: var(--color-text-main); }
.contact-detail .detail-label { font-size: 0.75rem; color: var(--color-text-light); }

.contact-form {
  background: var(--color-bg-light);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.85rem 1.1rem;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-family: var(--font-family-main);
  font-size: 0.92rem;
  color: var(--color-text-main);
  background: var(--color-white);
  transition: border-color 0.25s ease;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-submit .btn { width: 100%; text-align: center; padding: 1rem; }

/* ==========================================================================
   #SUPPORT SECTION
   ========================================================================== */
.support-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-bg-light);
}
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.support-card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  text-align: center;
}
.support-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}
.support-card .s-icon {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
  display: block;
}
.support-card h3 { font-size: 1.15rem; margin-bottom: 0.75rem; }
.support-card p { font-size: 0.9rem; color: var(--color-text-light); margin-bottom: 1.5rem; }

/* ==========================================================================
   #DOWNLOADS SECTION
   ========================================================================== */
.downloads-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-white);
}
.downloads-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3rem;
}
.download-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 2rem;
  transition: var(--transition-base);
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}
.download-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}
.download-card .dl-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-accent-highlight), var(--color-accent));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.download-card h4 { font-size: 1rem; margin-bottom: 0.35rem; }
.download-card p { font-size: 0.85rem; color: var(--color-text-light); margin-bottom: 1rem; }
.download-card .dl-meta {
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   #PRODUCT PAGE SECTIONS
   ========================================================================== */

/* Features */
.features-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-bg-light);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.feature-card {
  background: var(--color-white);
  border-radius: 20px;
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-card);
  transition: var(--transition-base);
  border-top: 4px solid transparent;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-top-color: var(--color-accent-highlight);
}
.feature-card .f-icon {
  font-size: 2rem;
  margin-bottom: 1.25rem;
  display: block;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 0.65rem; }
.feature-card p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.6; }

/* Product Overview */
.overview-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-white);
}
.overview-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.overview-text h2 { margin-bottom: 1.25rem; }
.overview-text p {
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.overview-checklist {
  list-style: none;
  margin-top: 1.5rem;
}
.overview-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.92rem;
  color: var(--color-text-main);
}
.overview-checklist li::before {
  content: '✓';
  color: var(--color-accent-highlight);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05rem;
}
.overview-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card-hover);
}
.overview-image img { width: 100%; max-height: 420px; object-fit: cover; }
.overview-image .img-ph {
  height: 380px;
  background: linear-gradient(135deg, #e8e8f8, #d8d8f0);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 0.9rem;
  opacity: 0.5;
}

/* Specs */
.specs-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-bg-light);
}
.specs-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}
.specs-table-wrap { overflow-x: auto; }
.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.specs-table th {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 1rem 1.25rem;
  text-align: left;
}
.specs-table td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.specs-table td:first-child { color: var(--color-text-light); font-weight: 500; }
.specs-table tr:last-child td { border-bottom: none; }
.specs-table tr:nth-child(even) td { background: var(--color-bg-light); }

/* Use Cases */
.usecases-section {
  padding: var(--spacing-lg) 0;
  background: var(--color-white);
}
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  margin-top: 3rem;
}
.usecase-card {
  background: var(--color-bg-light);
  border-radius: 20px;
  padding: 2rem 1.5rem;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}
.usecase-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.usecase-card .uc-icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 1rem;
}
.usecase-card h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.usecase-card p { font-size: 0.85rem; color: var(--color-text-light); }

/* Section heading helper */
.section-heading {
  text-align: center;
  margin-bottom: 0.5rem;
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.section-subheading {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   #FOOTER
   ========================================================================== */
.footer {
  background: linear-gradient(135deg, var(--color-primary-gradient-start), var(--color-primary-gradient-end));
  color: var(--color-white);
  padding: 6rem 0 2rem;
  position: relative;
  border-top-left-radius: 50% 100px;
  border-top-right-radius: 50% 100px;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 3fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-left { padding-right: 2rem; }
.footer-logo {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  display: block;
}
.footer-logo img {
  height: 40px;
  filter: brightness(0) invert(1);
  margin-bottom: 1rem;
}
.footer-desc {
  color: rgba(255,255,255,0.65);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 380px;
  font-size: 0.92rem;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
}
.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  transition: var(--transition-base);
}
.footer-social a:hover {
  background: var(--color-accent-highlight);
  border-color: var(--color-accent-highlight);
  color: var(--color-white);
}

.footer-right {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer-col h4 {
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer-links li { margin-bottom: 0.65rem; }
.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--color-white); padding-left: 3px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
}

/* ==========================================================================
   #FOCUS STYLES (keyboard accessibility)
   ========================================================================== */
:focus-visible {
  outline: 3px solid var(--color-accent-highlight);
  outline-offset: 3px;
  border-radius: 4px;
}
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-accent-highlight);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Touch / mobile: always show card overlay link */
@media (hover: none) {
  .card-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(31,31,78,0.92) 0%, transparent 70%);
  }
  .card-label { display: none; }
}

/* ==========================================================================
   #FAQ SECTION
   ========================================================================== */
.faq-section {
  padding: var(--section-padding);
  background: var(--color-bg-light);
}
.faq-list {
  max-width: 800px;
  margin: 2.5rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.faq-item {
  background: var(--color-white);
  border-radius: 12px;
  border: 1px solid rgba(157, 157, 250, 0.2);
  overflow: hidden;
  transition: var(--transition-base);
}
.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(157, 157, 250, 0.15);
}
.faq-item summary {
  padding: 1.2rem 1.5rem;
  font-weight: 600;
  font-size: 0.975rem;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.3s ease;
  line-height: 1;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item p {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  font-size: 0.9rem;
  border-top: 1px solid rgba(157, 157, 250, 0.1);
  margin-top: 0;
}

/* ==========================================================================
   #ANIMATIONS
   ========================================================================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   #RESPONSIVE
   ========================================================================== */
@media (max-width: 1100px) {
  .hero h1 { font-size: 3.2rem; }
  .offerings-grid-row { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
  .product-hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .product-hero-text h1 { font-size: 2.6rem; }
  .overview-inner, .about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .footer-right { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-primary-dark);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: block; z-index: 1001; }

  .hero { padding: 10rem 0 8rem; border-bottom-left-radius: 50% 50px; border-bottom-right-radius: 50% 50px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-cta { flex-direction: column; align-items: center; }

  .product-hero { padding: 8rem 0 4rem; border-bottom-left-radius: 50% 50px; border-bottom-right-radius: 50% 50px; }
  .product-hero-text h1 { font-size: 2rem; }

  .offerings-grid-row { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .support-grid { grid-template-columns: 1fr; }
  .downloads-grid { grid-template-columns: 1fr; }
  .usecases-grid { grid-template-columns: repeat(2, 1fr); }
  .specs-inner { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .footer { border-top-left-radius: 50% 50px; border-top-right-radius: 50% 50px; padding: 5rem 0 2rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-right { grid-template-columns: 1fr 1fr; }

  .cta-section h2 { font-size: 1.8rem; }
  .section-heading { font-size: 1.6rem; }
  .nav-dropdown { position: static; transform: none; background: transparent; border: none; box-shadow: none; padding: 0; opacity: 1; visibility: visible; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .usecases-grid { grid-template-columns: 1fr; }
  .footer-right { grid-template-columns: 1fr; }
  .offerings-grid-row { grid-template-columns: 1fr; }
}