/* ============================================================
   SaaS SEO Services -- Premium Styles
   Dashboard-inspired, subscription-focused, product-led design
   ============================================================ */

/* -- HERO SECTION -- */
.saas-hero {
  position: relative;
  padding: 9rem 0 6rem;
  background: linear-gradient(160deg, #f6f8fd 0%, #fdf5f9 55%, #f8f6ff 100%);
  overflow: hidden;
  text-align: center;
}

.saas-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(181,36,106,0.06) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(44,74,110,0.05) 0%, transparent 45%),
                    radial-gradient(circle at 60% 85%, rgba(181,36,106,0.04) 0%, transparent 40%);
  pointer-events: none;
}

.saas-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(26,46,68,0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}

/* Centered single-column inner */
.saas-hero-centered {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 820px;
  margin: 0 auto;
  gap: 0;
}

.saas-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(181,36,106,0.08);
  border: 1px solid rgba(181,36,106,0.15);
  border-radius: 100px;
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.6rem;
}

.saas-hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: saas-pulse 2s ease-in-out infinite;
}

@keyframes saas-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.5); }
}

.saas-hero-title {
  font-family: var(--font-headings);
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.4rem;
}

.saas-hero-title em {
  font-style: normal;
  color: var(--clr-accent);
}

.saas-hero-desc {
  font-size: 1.08rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
  margin-bottom: 2.2rem;
  max-width: 560px;
}

@media (max-width: 600px) {
  .saas-hero { padding: 7rem 0 4rem; }
  .saas-hero-title { font-size: 2.2rem; }
}

/* -- SECTION 2: SAAS GROWTH ENGINE -- */
.saas-engine {
  padding: 6rem 0;
  background: #ffffff;
  position: relative;
  overflow: hidden;
}

.saas-engine::before {
  content: '';
  position: absolute;
  right: -200px;
  top: -100px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(181,36,106,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.saas-section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.9rem;
  background: var(--clr-accent-pale);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.9rem;
}

.saas-section-title {
  font-family: var(--font-headings);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.saas-section-title em {
  font-style: normal;
  color: var(--clr-accent);
}

.saas-section-desc {
  font-size: 1rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
  max-width: 540px;
}

.saas-engine-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: center;
}

.saas-engine-left {}

.saas-engine-steps {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.saas-step {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--clr-border);
  transition: all 0.3s var(--ease-out);
  cursor: default;
}

.saas-step:last-child { border-bottom: none; }

.saas-step:hover .saas-step-icon {
  background: var(--clr-accent);
  color: #fff;
  transform: scale(1.1) rotate(-5deg);
}

.saas-step-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--clr-surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--clr-primary);
  transition: all 0.35s var(--ease-out);
  border: 1px solid var(--clr-border);
}

.saas-step-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 0.35rem;
}

.saas-step-content p {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* Right: Subscription Lifecycle Visual */
.saas-lifecycle {
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(26,46,68,0.07);
  position: relative;
}

.saas-lifecycle-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-light);
  margin-bottom: 1.5rem;
}

.saas-funnel {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-bottom: 1.5rem;
}

.saas-funnel-stage {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface-2);
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.saas-funnel-stage::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  border-radius: 4px 0 0 4px;
}

.saas-funnel-stage--trial::before { background: #f59e0b; }
.saas-funnel-stage--signup::before { background: var(--clr-accent); }
.saas-funnel-stage--active::before { background: #3b82f6; }
.saas-funnel-stage--retained::before { background: #22c55e; }

.saas-funnel-stage:hover {
  transform: translateX(5px);
  border-color: rgba(181,36,106,0.2);
  box-shadow: 0 5px 15px rgba(26,46,68,0.06);
}

.saas-funnel-label {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--clr-primary);
}

.saas-funnel-bar-wrap {
  flex: 2;
  height: 6px;
  background: var(--clr-border);
  border-radius: 100px;
  overflow: hidden;
}

.saas-funnel-bar {
  height: 100%;
  border-radius: 100px;
  animation: saas-bar-fill 1.2s var(--ease-out) both;
}

@keyframes saas-bar-fill {
  from { width: 0 !important; }
}

.saas-funnel-stage--trial .saas-funnel-bar { width: 100%; background: #f59e0b; }
.saas-funnel-stage--signup .saas-funnel-bar { width: 68%; background: var(--clr-accent); }
.saas-funnel-stage--active .saas-funnel-bar { width: 52%; background: #3b82f6; }
.saas-funnel-stage--retained .saas-funnel-bar { width: 82%; background: #22c55e; }

.saas-funnel-pct {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  min-width: 40px;
  text-align: right;
}

.saas-lifecycle-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--clr-border);
}

.slk-item {
  text-align: center;
  padding: 0.8rem 0.4rem;
  border-radius: 8px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
}

.slk-val {
  font-family: var(--font-headings);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.slk-val.pink { color: var(--clr-accent); }
.slk-val.green { color: #22c55e; }

.slk-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--clr-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 960px) {
  .saas-engine-grid {
    grid-template-columns: 1fr;
  }
}

/* -- SECTION 3: PRODUCT-LED SEO SYSTEM -- */
.saas-system {
  padding: 6rem 0;
  background: var(--clr-surface-2);
  position: relative;
}

.saas-system-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.saas-system-header .saas-section-desc {
  margin: 0 auto;
}

.saas-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.saas-module {
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: 18px;
  padding: 2rem 1.8rem;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.saas-module::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(181,36,106,0.03) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s;
}

.saas-module:hover {
  transform: translateY(-6px);
  border-color: rgba(181,36,106,0.2);
  box-shadow: 0 20px 50px rgba(26,46,68,0.08);
}

.saas-module:hover::after { opacity: 1; }

.saas-module-num {
  font-family: var(--font-headings);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--clr-text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.saas-module-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
  transition: all 0.35s var(--ease-out);
}

.saas-module-icon--pink { background: var(--clr-accent-pale); color: var(--clr-accent); }
.saas-module-icon--navy { background: rgba(26,46,68,0.06); color: var(--clr-primary); }
.saas-module-icon--green { background: rgba(34,197,94,0.1); color: #16a34a; }
.saas-module-icon--blue { background: rgba(59,130,246,0.1); color: #2563eb; }
.saas-module-icon--amber { background: rgba(245,158,11,0.1); color: #d97706; }
.saas-module-icon--purple { background: rgba(139,92,246,0.1); color: #7c3aed; }

.saas-module:hover .saas-module-icon {
  transform: scale(1.1) rotate(-6deg);
}

.saas-module h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 0.7rem;
  line-height: 1.3;
}

.saas-module p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 0 0 1.2rem;
}

.saas-module-metric {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  background: var(--clr-surface-2);
  color: var(--clr-primary);
}

@media (max-width: 1024px) {
  .saas-modules { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .saas-modules { grid-template-columns: 1fr; }
}

/* -- SECTION 4: DARK PREMIUM INSIGHTS -- */
.saas-insights {
  padding: 6.5rem 0;
  background: var(--clr-primary);
  position: relative;
  overflow: hidden;
}

.saas-insights::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 10% 50%, rgba(181,36,106,0.2) 0%, transparent 55%),
              radial-gradient(ellipse at 90% 20%, rgba(44,74,110,0.5) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 90%, rgba(181,36,106,0.1) 0%, transparent 45%);
  pointer-events: none;
}

/* animated grid lines */
.saas-insights::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.saas-insights-inner {
  position: relative;
  z-index: 10;
}

.saas-insights-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.saas-insights-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(181,36,106,0.15);
  border: 1px solid rgba(181,36,106,0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.saas-insights-title {
  font-family: var(--font-headings);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}

.saas-insights-title span {
  color: var(--clr-accent);
}

.saas-insights-subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  max-width: 540px;
  margin: 0 auto;
}

/* Metrics grid */
.saas-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.saas-metric-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 1.8rem 1.5rem;
  text-align: center;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.saas-metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(181,36,106,0.6), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.saas-metric-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(181,36,106,0.25);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2), 0 0 30px rgba(181,36,106,0.08);
}

.saas-metric-card:hover::before { opacity: 1; }

.saas-metric-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.saas-metric-val {
  font-family: var(--font-headings);
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.saas-metric-val.pink { color: var(--clr-accent); }
.saas-metric-val.green { color: #4ade80; }
.saas-metric-val.blue { color: #60a5fa; }

.saas-metric-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.6rem;
}

.saas-metric-trend {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: #4ade80;
  padding: 0.2rem 0.6rem;
  background: rgba(74,222,128,0.1);
  border-radius: 100px;
}

/* Insights bottom panels */
.saas-insights-panels {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.5rem;
}

.saas-insight-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 2rem;
}

.saas-ip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.saas-ip-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.saas-ip-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  background: rgba(181,36,106,0.2);
  color: rgba(255,255,255,0.7);
}

/* Keyword rows */
.saas-keyword-rows {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.saas-kw-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.7rem 1rem;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: all 0.25s;
}

.saas-kw-row:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(181,36,106,0.2);
}

.saas-kw-name {
  flex: 1;
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
}

.saas-kw-intent {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.saas-kw-intent--high { background: rgba(181,36,106,0.2); color: #f9a8d4; }
.saas-kw-intent--med { background: rgba(245,158,11,0.15); color: #fcd34d; }

.saas-kw-vol {
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  min-width: 50px;
  text-align: right;
}

/* Right panel: Retention curve */
.saas-retention-chart {
  position: relative;
}

.saas-retention-svg {
  width: 100%;
  height: 130px;
  overflow: visible;
  margin-bottom: 1rem;
}

.saas-retention-line {
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.saas-retention-area {
  fill: url(#retentionGrad);
}

.saas-retention-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.68rem;
  color: rgba(255,255,255,0.35);
  margin-bottom: 1.2rem;
}

.saas-churn-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.saas-churn-item {
  padding: 0.8rem;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.05);
  text-align: center;
}

.saas-churn-val {
  font-family: var(--font-headings);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.2rem;
}

.saas-churn-val.green { color: #4ade80; }

.saas-churn-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 1024px) {
  .saas-metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .saas-insights-panels { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .saas-metrics-grid { grid-template-columns: repeat(2, 1fr); }
}

/* -- SECTION 5: FINAL CTA -- */
.saas-cta {
  padding: 5rem 0;
  background: linear-gradient(160deg, #fdf5f9 0%, #f6f8fd 100%);
  position: relative;
  overflow: hidden;
}

.saas-cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(181,36,106,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.saas-cta-box {
  position: relative;
  z-index: 10;
  background: #ffffff;
  border: 1px solid var(--clr-border);
  border-radius: 24px;
  padding: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  box-shadow: 0 30px 80px rgba(26,46,68,0.07), 0 0 0 1px rgba(181,36,106,0.05);
  overflow: hidden;
}

.saas-cta-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-primary), var(--clr-accent));
}

/* floating circle deco */
.saas-cta-box::after {
  content: '';
  position: absolute;
  right: -60px; bottom: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(181,36,106,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.saas-cta-left {}

.saas-cta-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-accent);
  margin-bottom: 0.8rem;
}

.saas-cta-title {
  font-family: var(--font-headings);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 0.6rem;
}

.saas-cta-title em {
  font-style: normal;
  color: var(--clr-accent);
}

.saas-cta-desc {
  font-size: 1rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

.saas-cta-right {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: flex-end;
}

.saas-cta-note {
  font-size: 0.78rem;
  color: var(--clr-text-light);
  text-align: center;
}

@media (max-width: 768px) {
  .saas-cta-box {
    flex-direction: column;
    text-align: center;
    padding: 3rem 2rem;
  }
  .saas-cta-right { align-items: center; }
}