/* --- CSS VARIABLE SYSTEM --- */
:root {
  /* Site Theme: DARK */
  --co-bg: #0d1117;
  --co-surface: #161b22;
  --co-surface-hover: #1f2631;
  --co-surface-accent: #11151c;
  --co-tone: #ff3b5c;
  --co-tone-hover: #e02242;
  --co-highlight: #00f0ff;
  --co-ink: #ffffff;
  --co-ink-dim: #cbd5e1;
  --co-ink-fade: #8b949e;
  
  --co-gradient: linear-gradient(135deg, #ff3b5c 0%, #ff8a00 100%);
  --co-gradient-hover: linear-gradient(135deg, #e02242 0%, #e05e00 100%);
  
  /* Fonts Configuration */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Border Radius Style: SOFT */
  --co-radius: 16px;
  
  /* Shadow Depth: RAISED */
  --co-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 4px 10px -2px rgba(0, 0, 0, 0.4);
  --co-shadow-hover: 0 20px 35px -5px rgba(0, 240, 255, 0.1), 0 8px 15px -3px rgba(0, 0, 0, 0.6);
  
  /* Heading Case: UPPERCASE */
  --co-heading-transform: uppercase;
}

/* --- BASE & TYPOGRAPHY RESETS --- */
body {
  font-family: var(--font-body);
  background-color: var(--co-bg);
  color: var(--co-ink);
  line-height: 1.6;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1 0 auto;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: var(--co-heading-transform);
  letter-spacing: 0.05em;
  color: var(--co-ink);
}

/* --- CONTAINER SHELL --- */
.co-shell {
  max-width: 1220px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* --- HEADER BAR --- */
.co-header-bar {
  background-color: var(--co-surface-accent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.co-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.co-brand-anchor {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.co-brand-icon {
  width: 2.25rem;
  height: 2.25rem;
}

.co-brand-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--co-ink);
  text-transform: var(--co-heading-transform);
  letter-spacing: 0.1em;
}

/* Desktop decorative element hidden on mobile */
.co-desktop-decor {
  display: none;
}

@media (min-width: 768px) {
  .co-desktop-decor {
    display: flex;
    align-items: center;
    opacity: 0.5;
  }
  .co-decor-pulse {
    width: 6rem;
    height: 2rem;
  }
}

/* --- MAIN LAYOUT SPACING --- */
.co-main-flow {
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

/* --- PRODUCT SPOTLIGHT (PRESET A: SPLIT STICKY) --- */
.co-spotlight-zone {
  position: relative;
  padding-top: 3rem;
  padding-bottom: 2rem;
}

.co-item-display {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .co-item-display {
    flex-direction: row;
    gap: 4rem;
  }
}

/* Sticky left column */
.co-sticky-aside {
  width: 100%;
}

@media (min-width: 768px) {
  .co-sticky-aside {
    width: 40%;
    position: sticky;
    top: 6rem;
    align-self: flex-start;
  }
}

.co-media-envelope {
  background-color: var(--co-surface-accent);
  border-radius: var(--co-radius);
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--co-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.co-pack-shot {
  width: 100%;
  max-width: 320px;
}

.co-pack-image {
  width: 100%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 15px 15px rgba(0, 0, 0, 0.6));
}

/* Content right column */
.co-content-panel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .co-content-panel {
    width: 60%;
  }
}

.co-sub-tag {
  color: var(--co-highlight);
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: var(--co-heading-transform);
  display: block;
  margin-bottom: 0.25rem;
}

.co-headline-huge {
  font-size: 3rem;
  line-height: 1.1;
  margin: 0;
  font-weight: 700;
}

.co-lead-paragraph {
  font-size: 1.15rem;
  color: var(--co-ink-dim);
  margin: 0;
}

.co-overview-panel {
  background-color: var(--co-surface);
  border-radius: var(--co-radius);
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.co-prose-body {
  font-size: 1rem;
  color: var(--co-ink-dim);
  margin: 0;
}

/* Horizontal features list rows inside content panel */
.co-quick-roll {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.co-quick-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.co-quick-icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  color: var(--co-highlight);
  margin-top: 0.2rem;
}

.co-quick-heading {
  font-size: 1.1rem;
  margin: 0 0 0.15rem 0;
  font-weight: 600;
}

.co-quick-desc {
  font-size: 0.9rem;
  color: var(--co-ink-fade);
  margin: 0;
}

/* Guarantee Badge (Icon Left) */
.co-trust-badge {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--co-radius);
  padding: 1.25rem;
}

.co-trust-icon {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  color: #ffb703;
}

.co-trust-info {
  display: flex;
  flex-direction: column;
}

.co-trust-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.2rem 0;
}

.co-trust-desc {
  font-size: 0.85rem;
  color: var(--co-ink-fade);
  margin: 0;
}

/* Deal/Offer strip (Price & CTA Button) */
.co-deal-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1rem;
}

/* Price Display: CSS TAG Shape */
.co-price-tag {
  position: relative;
  background: var(--co-gradient);
  color: var(--co-ink);
  padding: 0.75rem 2.25rem 0.75rem 1.5rem;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 1.875rem;
  line-height: 1;
  border-radius: var(--co-radius) 0 0 var(--co-radius);
  clip-path: polygon(0% 0%, 85% 0%, 100% 50%, 85% 100%, 0% 100%);
  display: inline-flex;
  align-items: center;
  box-shadow: var(--co-shadow);
  min-width: 170px;
  justify-content: flex-start;
}

.co-price-tag::after {
  content: '';
  position: absolute;
  right: 12%;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background-color: var(--co-bg);
  border-radius: 999px;
  box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.4);
}

.co-action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--co-tone);
  color: var(--co-ink);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: var(--co-heading-transform);
  padding: 0.875rem 2.5rem;
  border-radius: var(--co-radius);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--co-shadow);
  border: 1px solid transparent;
  flex: 1 1 200px;
  text-align: center;
}

.co-action-link:hover {
  background-color: var(--co-tone-hover);
  transform: translateY(-2px);
  box-shadow: var(--co-shadow-hover);
  color: var(--co-ink);
}

/* SVG ambient grid */
.co-ambient-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* --- DETAILED FEATURES SECTION --- */
.co-benefit-showcase {
  position: relative;
  z-index: 10;
}

.co-segment-caption {
  font-size: 2rem;
  margin: 0 0 2rem 0;
  text-align: center;
  position: relative;
  padding-bottom: 0.75rem;
}

.co-segment-caption::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--co-tone);
}

.co-benefit-rows-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.co-benefit-row-item {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background-color: var(--co-surface);
  padding: 2rem;
  border-radius: var(--co-radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: var(--co-shadow);
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

@media (min-width: 640px) {
  .co-benefit-row-item {
    flex-direction: row;
    align-items: center;
  }
}

.co-benefit-row-item:hover {
  transform: translateY(-4px);
  background-color: var(--co-surface-hover);
  border-color: rgba(255, 255, 255, 0.1);
}

.co-benefit-row-circle {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 999px;
  background-color: rgba(0, 240, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(0, 240, 255, 0.15);
}

.co-benefit-row-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.co-benefit-row-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.co-benefit-row-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--co-ink-dim);
}

/* --- TESTIMONIALS SECTION (PRESET A) --- */
.co-feedback-zone {
  background-color: var(--co-surface-accent);
  padding-top: 4rem;
  padding-bottom: 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.co-mesh-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .co-mesh-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .co-mesh-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
}

.co-feedback-plate {
  display: flex;
  flex-direction: column;
  background-color: var(--co-surface);
  padding: 2rem;
  border-radius: var(--co-radius);
  
  /* Top accent color border as requested in Preset A */
  border-top: 4px solid var(--co-tone);
  border-left: 1px solid rgba(255, 255, 255, 0.05);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  
  box-shadow: var(--co-shadow);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
}

.co-feedback-plate:hover {
  transform: translateY(-6px);
  border-left-color: rgba(255, 255, 255, 0.1);
  border-right-color: rgba(255, 255, 255, 0.1);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.co-feedback-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

/* Avatar-initials inside a circle as requested */
.co-feedback-avatar {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 999px;
  background: var(--co-gradient);
  color: var(--co-ink);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.co-feedback-user {
  display: flex;
  flex-direction: column;
}

.co-feedback-name {
  font-weight: 600;
  font-size: 1.05rem;
}

.co-feedback-location {
  font-size: 0.8rem;
  color: var(--co-ink-fade);
}

.co-feedback-rating {
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: #ffb703;
  margin-bottom: 0.75rem;
}

.co-feedback-prose {
  font-size: 0.95rem;
  color: var(--co-ink-dim);
  line-height: 1.6;
  font-style: italic;
}

/* --- FOOTER SECTION --- */
.co-footer-bar {
  background-color: var(--co-surface-accent);
  padding-top: 3rem;
  padding-bottom: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.co-footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .co-footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.co-footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.co-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .co-footer-links {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.5rem;
  }
}

.co-policy-link {
  color: var(--co-ink-fade);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.co-policy-link:hover {
  color: var(--co-highlight);
}