/* ===========================================================
   CUSTOM CHATBOT & AI SAAS PLATFORM
   Page-specific styles  \00B7   Prefix: csp-
   Design: Tab Explorer \00B7  Layered Stack \00B7  Dark Metrics \00B7  CTA Strip
   =========================================================== */

/* --- LOCAL TOKENS --- */
:root {
  --csp-primary:       #1a2e44;
  --csp-primary-lt:    #2c4a6e;
  --csp-accent:        #B5246A;
  --csp-accent-light:  #FAE8F1;
  --csp-accent-mid:    rgba(181,36,106,0.12);
  --csp-surface:       #ffffff;
  --csp-surface-2:     #f8f7f4;
  --csp-surface-3:     #f0ede6;
  --csp-border:        #e8e4dc;
  --csp-border-lt:     rgba(232,228,220,0.6);
  --csp-text:          #1c1c1e;
  --csp-muted:         #4a4a58;
  --csp-muted-lt:      #666676;
  --csp-dark-bg:       #0f1d2c;
  --csp-dark-border:   rgba(255,255,255,0.07);
  --csp-dark-surface:  rgba(255,255,255,0.04);
  --csp-radius-sm:     8px;
  --csp-radius-md:     14px;
  --csp-radius-lg:     20px;
  --csp-radius-xl:     28px;
  --csp-ease:          cubic-bezier(0.22, 1, 0.36, 1);
  --csp-dur:           300ms;
}

/* ==============================================
   HERO SECTION
   Typography-focused, minimal, static
   ============================================== */

.csp-hero {
  position: relative;
  min-height: 72svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--csp-surface-2);
  text-align: center;
  padding: 7rem 0 5rem;
  overflow: hidden;
}

/* Subtle radial glow */
.csp-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 50% 0%,   rgba(181, 36, 106, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 45% 35% at 85% 85%,  rgba(26, 46, 68, 0.04)  0%, transparent 65%);
  pointer-events: none;
}

/* Subtle grid texture */
.csp-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,46,68,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,46,68,0.045) 1px, transparent 1px);
  background-size: 52px 52px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 80% 75% at 50% 50%, black 40%, transparent 100%);
          mask-image: radial-gradient(ellipse 80% 75% at 50% 50%, black 40%, transparent 100%);
}

.csp-hero-inner {
  position: relative;
  z-index: 10;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
}

.csp-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--csp-accent);
  background: var(--csp-accent-light);
  padding: 0.45rem 1.1rem;
  border-radius: 100px;
  border: 1px solid rgba(181,36,106,0.12);
}

.csp-hero-label i { font-size: 0.9rem; }

.csp-hero-title {
  font-family: var(--font-headings);
  font-size: clamp(2.3rem, 5.5vw, 3.9rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--csp-primary);
  letter-spacing: -0.03em;
  margin: 0;
}

.csp-hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--csp-accent) 0%, #c93877 50%, var(--csp-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.csp-hero-desc {
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--csp-muted);
  max-width: 630px;
  font-weight: 300;
}


/* ==============================================
   SHARED SECTION TOKENS
   ============================================== */

.csp-section-label {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--csp-accent);
  margin-bottom: 0.7rem;
}

.csp-section-title {
  font-family: var(--font-headings);
  font-size: clamp(1.75rem, 3.5vw, 2.7rem);
  font-weight: 600;
  color: var(--csp-primary);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 0.8rem;
}

.csp-section-desc {
  font-size: 1rem;
  color: var(--csp-muted);
  line-height: 1.75;
  max-width: 580px;
  font-weight: 300;
}


/* ==============================================
   SECTION 1 -- NLP INTELLIGENCE ENGINE
   Tab-based Interactive Feature Explorer
   ============================================== */

.csp-nlp {
  padding: 5.5rem 0 6rem;
  background: var(--csp-surface);
}

.csp-nlp-header {
  text-align: center;
  margin-bottom: 2.8rem;
}

/* -- Tab Navigation -- */
.csp-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.8rem;
}

.csp-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.35rem;
  border-radius: 100px;
  border: 1.5px solid var(--csp-border);
  background: transparent;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--csp-muted);
  cursor: pointer;
  transition: all var(--csp-dur) var(--csp-ease);
  font-family: var(--font-sans);
  letter-spacing: 0.01em;
  white-space: nowrap;
  outline: none;
}

.csp-tab-btn i { font-size: 1rem; }

.csp-tab-btn:hover {
  border-color: var(--csp-accent);
  color: var(--csp-accent);
  background: var(--csp-accent-light);
}

.csp-tab-btn:focus-visible {
  outline: 2px solid var(--csp-accent);
  outline-offset: 2px;
}

.csp-tab-btn.active {
  background: var(--csp-primary);
  border-color: var(--csp-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(26,46,68,0.18);
}

/* -- Tab Panel Container -- */
.csp-tab-panels {
  min-height: 380px;
}

.csp-panel {
  display: none;
}

.csp-panel.active {
  display: block;
  animation: cspPanelIn 0.38s var(--csp-ease) forwards;
}

@keyframes cspPanelIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* -- Panel 1: NLP Core -- 3\00D7 2 Feature Grid -- */
.csp-nlp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.csp-nlp-feat {
  background: var(--csp-surface-2);
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-lg);
  padding: 1.65rem 1.5rem;
  cursor: default;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s var(--csp-ease), transform 0.55s var(--csp-ease),
              background var(--csp-dur) var(--csp-ease),
              border-color var(--csp-dur) var(--csp-ease),
              box-shadow var(--csp-dur) var(--csp-ease);
}

.csp-nlp-feat.csp-nlp-feat-in {
  opacity: 1;
  transform: translateY(0);
}

.csp-nlp-feat:hover {
  background: var(--csp-surface);
  border-color: rgba(181,36,106,0.22);
  box-shadow: 0 10px 32px rgba(26,46,68,0.07);
  transform: translateY(-4px);
}

.csp-nlp-feat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--csp-accent-light);
  color: var(--csp-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  flex-shrink: 0;
  transition: transform var(--csp-dur) var(--csp-ease);
}

.csp-nlp-feat:hover .csp-nlp-feat-icon {
  transform: scale(1.08) rotate(-4deg);
}

.csp-nlp-feat h3 {
  font-family: var(--font-headings);
  font-size: 1rem;
  font-weight: 600;
  color: var(--csp-primary);
  margin-bottom: 0.45rem;
  letter-spacing: -0.01em;
}

.csp-nlp-feat p {
  font-size: 0.875rem;
  color: var(--csp-muted);
  line-height: 1.65;
}

/* -- Panel 2: Conversation Flow -- */
.csp-flow-wrap {
  padding: 1rem 0;
}

.csp-flow-intro {
  text-align: center;
  font-size: 1rem;
  color: var(--csp-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.csp-flow-pipeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
  background: var(--csp-surface-2);
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-xl);
  padding: 2.5rem 2rem;
  overflow-x: auto;
}

.csp-flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  padding: 0 0.5rem;
}

.csp-flow-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--csp-surface);
  border: 2px solid var(--csp-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-headings);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--csp-accent);
  box-shadow: 0 4px 14px rgba(181,36,106,0.14);
  flex-shrink: 0;
  transition: transform var(--csp-dur) var(--csp-ease), background var(--csp-dur) var(--csp-ease), color var(--csp-dur) var(--csp-ease);
}

.csp-flow-step:hover .csp-flow-num {
  background: var(--csp-accent);
  color: #fff;
  transform: scale(1.1);
}

.csp-flow-body {
  text-align: center;
}

.csp-flow-title {
  font-family: var(--font-headings);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--csp-primary);
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.csp-flow-desc {
  font-size: 0.77rem;
  color: var(--csp-muted);
  line-height: 1.5;
  max-width: 105px;
}

.csp-flow-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(181,36,106,0.35);
  font-size: 1.1rem;
  padding: 0 0.25rem;
  padding-bottom: 2.5rem; /* align with num circle vertically */
  flex-shrink: 0;
}

/* -- Panel 3: Multi-Channel Grid -- */
.csp-channels-header {
  margin-bottom: 1.8rem;
}

.csp-channels-intro {
  text-align: center;
  font-size: 1rem;
  color: var(--csp-muted);
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto;
}

.csp-channels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.csp-channel-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.2rem 1.25rem;
  background: var(--csp-surface-2);
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-md);
  transition: all var(--csp-dur) var(--csp-ease);
  cursor: default;
}

.csp-channel-item:hover {
  border-color: rgba(181,36,106,0.25);
  background: var(--csp-accent-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(181,36,106,0.07);
}

.csp-channel-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--csp-surface);
  border: 1px solid var(--csp-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: var(--csp-primary);
  flex-shrink: 0;
  transition: background var(--csp-dur) var(--csp-ease), color var(--csp-dur) var(--csp-ease);
}

.csp-channel-item:hover .csp-channel-icon {
  background: var(--csp-accent);
  color: #fff;
  border-color: var(--csp-accent);
}

.csp-channel-name {
  font-family: var(--font-headings);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--csp-primary);
  margin-bottom: 0.2rem;
  letter-spacing: -0.01em;
}

.csp-channel-desc {
  font-size: 0.78rem;
  color: var(--csp-muted);
  line-height: 1.45;
}

/* -- Panel 4: Integrations -- */
.csp-integrations-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.csp-int-group {
  background: var(--csp-surface-2);
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-lg);
  padding: 1.5rem 1.6rem;
  transition: border-color var(--csp-dur) var(--csp-ease);
}

.csp-int-group:hover {
  border-color: rgba(181,36,106,0.2);
}

.csp-int-group-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--csp-accent);
  margin-bottom: 1rem;
}

.csp-int-group-label i { font-size: 0.95rem; }

.csp-int-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.csp-int-chip {
  padding: 0.35rem 0.85rem;
  background: var(--csp-surface);
  border: 1px solid var(--csp-border);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--csp-primary);
  transition: all 0.2s ease;
}

.csp-int-chip:hover {
  background: var(--csp-accent-light);
  border-color: rgba(181,36,106,0.2);
  color: var(--csp-accent);
}


/* ==============================================
   SECTION 2 -- PLATFORM ARCHITECTURE
   Layered Horizontal Stack Visual
   ============================================== */

.csp-arch {
  padding: 5.5rem 0 6rem;
  background: var(--csp-surface-2);
}

.csp-arch-header {
  text-align: center;
  margin-bottom: 3rem;
}

/* Stack container */
.csp-arch-stack {
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-xl);
  overflow: hidden;
  background: var(--csp-surface);
  box-shadow:
    0 20px 60px rgba(26,46,68,0.07),
    0 4px 16px rgba(26,46,68,0.04);
}

/* Individual layer row */
.csp-arch-layer {
  display: grid;
  grid-template-columns: 210px 1fr;
  align-items: stretch;
  border-bottom: 1px solid var(--csp-border);
  min-height: 90px;
  opacity: 0;
  transform: translateX(-16px);
  transition: opacity 0.6s var(--csp-ease), transform 0.6s var(--csp-ease),
              background var(--csp-dur) var(--csp-ease);
}

.csp-arch-layer:last-child {
  border-bottom: none;
}

.csp-arch-layer.csp-layer-in {
  opacity: 1;
  transform: translateX(0);
}

.csp-arch-layer:hover {
  background: var(--csp-surface-2);
}

/* Layer label cell */
.csp-arch-layer-label {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.2rem 1.6rem;
  border-right: 1px solid var(--csp-border);
  background: linear-gradient(120deg, var(--csp-surface-2) 0%, rgba(255,255,255,0.5) 100%);
  gap: 0.25rem;
}

.csp-layer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--csp-accent);
}

.csp-layer-badge i { font-size: 0.85rem; }

.csp-layer-name {
  font-family: var(--font-headings);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--csp-primary);
  letter-spacing: -0.01em;
}

.csp-layer-sub {
  font-size: 0.76rem;
  color: var(--csp-muted-lt);
}

/* Items cell */
.csp-arch-layer-items {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 1.2rem 1.6rem;
}

/* Tech pill items */
.csp-arch-item {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.38rem 0.9rem;
  background: var(--csp-surface-2);
  border: 1px solid var(--csp-border);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--csp-primary);
  transition: all 0.2s var(--csp-ease);
  cursor: default;
  white-space: nowrap;
}

.csp-arch-item i {
  font-size: 0.85rem;
  color: var(--csp-muted-lt);
  transition: color 0.2s ease;
}

.csp-arch-item:hover {
  background: var(--csp-accent-light);
  border-color: rgba(181,36,106,0.22);
  color: var(--csp-accent);
}

.csp-arch-item:hover i {
  color: var(--csp-accent);
}

/* AI layer gets accented styling */
.csp-arch-layer[data-layer="ai"] .csp-arch-item--accent {
  background: rgba(181,36,106,0.06);
  border-color: rgba(181,36,106,0.18);
  color: var(--csp-accent);
}

.csp-arch-layer[data-layer="ai"] .csp-arch-item--accent i {
  color: var(--csp-accent);
}

.csp-arch-layer[data-layer="ai"] .csp-arch-item--accent:hover {
  background: var(--csp-accent);
  color: #fff;
  border-color: var(--csp-accent);
}

.csp-arch-layer[data-layer="ai"] .csp-arch-item--accent:hover i {
  color: #fff;
}


/* ==============================================
   SECTION 3 -- ANALYTICS & AI INFRASTRUCTURE
   Dark Inverted \00B7  Asymmetric Metrics + Features
   ============================================== */

.csp-infra {
  padding: 5.5rem 0 6rem;
  background: var(--csp-dark-bg);
  position: relative;
  overflow: hidden;
}

/* Background ambient glows */
.csp-infra::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(181,36,106,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.csp-infra::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(44,74,110,0.35) 0%, transparent 65%);
  pointer-events: none;
}

/* Two-column layout */
.csp-infra-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Left column */
.csp-infra-label {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(181,36,106,0.85);
  margin-bottom: 0.75rem;
}

.csp-infra-title {
  font-family: var(--font-headings);
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  font-weight: 600;
  color: #fff;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 2.5rem;
}

/* 2\00D7 2 metrics grid */
.csp-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.csp-metric-item {
  padding: 1.5rem 1.4rem;
  background: var(--csp-dark-surface);
  border: 1px solid var(--csp-dark-border);
  border-radius: var(--csp-radius-md);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--csp-ease), transform 0.6s var(--csp-ease),
              background var(--csp-dur) ease, border-color var(--csp-dur) ease;
}

.csp-metric-item.csp-metric-in {
  opacity: 1;
  transform: translateY(0);
}

.csp-metric-item:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(181,36,106,0.25);
  transform: translateY(-3px);
}

.csp-metric-val {
  font-family: var(--font-headings);
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 0.45rem;
  letter-spacing: -0.035em;
}

.csp-metric-val span {
  font-size: 1.5rem;
  color: #cf5c8a;
  font-weight: 600;
}

.csp-metric-label {
  font-size: 0.82rem;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  line-height: 1.45;
}

/* Right column: feature list */
.csp-infra-features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.csp-infra-feat {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.15rem 1.3rem;
  background: var(--csp-dark-surface);
  border: 1px solid var(--csp-dark-border);
  border-radius: var(--csp-radius-md);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.55s var(--csp-ease), transform 0.55s var(--csp-ease),
              background var(--csp-dur) ease, border-color var(--csp-dur) ease;
}

.csp-infra-feat.csp-infra-feat-in {
  opacity: 1;
  transform: translateX(0);
}

.csp-infra-feat:hover {
  background: rgba(255,255,255,0.065);
  border-color: rgba(181,36,106,0.2);
}

.csp-infra-feat-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(181,36,106,0.14);
  color: #cf5c8a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform var(--csp-dur) var(--csp-ease);
}

.csp-infra-feat:hover .csp-infra-feat-icon {
  transform: scale(1.08);
}

.csp-infra-feat-content h4 {
  font-family: var(--font-headings);
  font-size: 0.93rem;
  font-weight: 600;
  color: rgba(255,255,255,0.92);
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.csp-infra-feat-content p {
  font-size: 0.825rem;
  color: rgba(255,255,255,0.46);
  line-height: 1.58;
}


/* ==============================================
   SECTION 4 -- COMPACT CTA STRIP
   Elegant inline CTA, left-accent bar
   ============================================== */

.csp-cta {
  padding: 5rem 0;
  background: var(--csp-surface);
  border-top: 1px solid var(--csp-border);
}

.csp-cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  padding: 2.5rem 3rem 2.5rem 3.5rem;
  background: linear-gradient(115deg, var(--csp-surface-2) 0%, rgba(255,255,255,0.8) 100%);
  border: 1px solid var(--csp-border);
  border-radius: var(--csp-radius-xl);
  box-shadow: 0 8px 36px rgba(26,46,68,0.055);
  position: relative;
  overflow: hidden;
}

/* Left accent bar */
.csp-cta-strip::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--csp-accent), var(--csp-primary));
  border-radius: 4px 0 0 4px;
}

/* Subtle inner highlight */
.csp-cta-strip::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(181,36,106,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.csp-cta-text {
  position: relative;
  z-index: 1;
}

.csp-cta-text h2 {
  font-family: var(--font-headings);
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  color: var(--csp-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  line-height: 1.2;
}

.csp-cta-text p {
  font-size: 0.95rem;
  color: var(--csp-muted);
  max-width: 500px;
  line-height: 1.65;
  font-weight: 300;
}

.csp-cta-actions {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}


/* ==============================================
   RESPONSIVE -- TABLET  (<= 1024px)
   ============================================== */

@media (max-width: 1024px) {
  .csp-infra-inner {
    gap: 3.5rem;
  }
}

/* ==============================================
   RESPONSIVE -- MEDIUM  (<= 900px)
   ============================================== */

@media (max-width: 900px) {

  /* NLP grid: 2 cols */
  .csp-nlp-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Flow pipeline: wrap gracefully */
  .csp-flow-pipeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 1.5rem;
    padding: 2rem 1.5rem;
  }
  .csp-flow-connector { display: none; }

  /* Channels: 2 cols */
  .csp-channels-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Architecture: stack label on top */
  .csp-arch-layer {
    grid-template-columns: 1fr;
  }
  .csp-arch-layer-label {
    border-right: none;
    border-bottom: 1px solid var(--csp-border);
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.4rem;
  }

  /* Infrastructure: single column */
  .csp-infra-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  /* CTA: stack */
  .csp-cta-strip {
    flex-direction: column;
    align-items: flex-start;
    padding: 2.2rem 2rem 2.2rem 2.5rem;
    gap: 1.5rem;
  }
}

/* ==============================================
   RESPONSIVE -- SMALL  (<= 640px)
   ============================================== */

@media (max-width: 640px) {

  .csp-hero { padding: 6.5rem 0 4rem; }
  .csp-hero-title { font-size: clamp(2rem, 8vw, 2.8rem); }

  .csp-nlp { padding: 4rem 0 5rem; }
  .csp-arch { padding: 4rem 0 5rem; }
  .csp-infra { padding: 4rem 0 5rem; }
  .csp-cta  { padding: 4rem 0; }

  /* NLP: single col */
  .csp-nlp-grid {
    grid-template-columns: 1fr;
  }

  /* Flow: 2 cols */
  .csp-flow-pipeline {
    grid-template-columns: repeat(2, 1fr);
    padding: 1.5rem 1rem;
  }

  /* Channels: single col */
  .csp-channels-grid {
    grid-template-columns: 1fr;
  }

  /* Integrations: single col */
  .csp-integrations-list {
    grid-template-columns: 1fr;
  }

  /* Metrics: single col */
  .csp-metrics-grid {
    grid-template-columns: 1fr;
  }

  /* Tabs: smaller */
  .csp-tab-btn {
    padding: 0.5rem 0.9rem;
    font-size: 0.8rem;
    gap: 0.35rem;
  }

  .csp-cta-strip {
    padding: 2rem 1.5rem 2rem 2rem;
    border-radius: var(--csp-radius-lg);
  }

  .csp-arch-layer-label {
    flex-wrap: wrap;
    gap: 0.4rem;
  }
}

/* ==============================================
   UTILITY: Print / Motion Reduction
   ============================================== */

@media (prefers-reduced-motion: reduce) {
  .csp-panel.active { animation: none; }
  .csp-nlp-feat,
  .csp-infra-feat,
  .csp-metric-item,
  .csp-arch-layer { transition: none !important; }
}