/* ============================================================
   MLM MIND – Design System & Global Styles
   Version : 1.0
   Author  : MLM Mind Dev Team
   ============================================================ */

/* ── 1. CSS Custom Properties (Design Tokens) ─────────────── */
:root {
  /* Brand Colors */
  --clr-primary:       #6c3ff5;
  --clr-primary-dark:  #5227e0;
  --clr-primary-light: #8b63f8;
  --clr-accent:        #00d4ff;
  --clr-accent-dark:   #00b4d8;
  --clr-success:       #22c55e;
  --clr-warning:       #f59e0b;
  --clr-danger:        #ef4444;

  /* Neutrals */
  --clr-bg:            #06040f;
  --clr-bg-2:          #0e0a1e;
  --clr-bg-3:          #160f2e;
  --clr-surface:       #1a1333;
  --clr-surface-2:     #221945;
  --clr-border:        rgba(108, 63, 245, 0.18);
  --clr-border-light:  rgba(255,255,255,0.07);

  /* Text */
  --clr-text:          #e8e0ff;
  --clr-text-muted:    #9b8ec4;
  --clr-text-faint:    #5d527a;
  --clr-white:         #ffffff;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #6c3ff5 0%, #00d4ff 100%);
  --grad-hero:    linear-gradient(160deg, #0e0a1e 0%, #1a0a3d 40%, #0a1a2e 100%);
  --grad-card:    linear-gradient(145deg, rgba(26,19,51,0.9) 0%, rgba(34,25,69,0.7) 100%);
  --grad-glow:    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(108,63,245,0.25) 0%, transparent 70%);

  /* Typography */
  --font-sans:  'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Spacing Scale */
  --sp-1:   0.25rem;
  --sp-2:   0.5rem;
  --sp-3:   0.75rem;
  --sp-4:   1rem;
  --sp-5:   1.25rem;
  --sp-6:   1.5rem;
  --sp-8:   2rem;
  --sp-10:  2.5rem;
  --sp-12:  3rem;
  --sp-16:  4rem;
  --sp-20:  5rem;
  --sp-24:  6rem;

  /* Border Radius */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:   0 4px 24px rgba(0,0,0,0.45);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 32px rgba(108,63,245,0.35);
  --shadow-glow-accent: 0 0 24px rgba(0,212,255,0.25);

  /* Transitions */
  --trans-fast:   150ms ease;
  --trans-base:   250ms ease;
  --trans-slow:   400ms cubic-bezier(0.4,0,0.2,1);

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(1rem, 5vw, 2.5rem);
  --nav-h: 72px;
}

/* ── 2. Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ── 3. Typography Scale ──────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--clr-white);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.3rem); }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p { color: var(--clr-text-muted); line-height: 1.75; }

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent { color: var(--clr-accent); }
.text-success { color: var(--clr-success); }
.text-warning { color: var(--clr-warning); }
.text-white { color: var(--clr-white) !important; }
.text-muted { color: var(--clr-text-muted); }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.font-mono { font-family: var(--font-mono); }

/* ── 4. Layout Utilities ──────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--sp-20) 0;
  position: relative;
}

.section-sm { padding: var(--sp-12) 0; }

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--sp-12);
}

.section-header .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-4);
}

.section-header p {
  font-size: 1.1rem;
  margin-top: var(--sp-4);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.grid { display: grid; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--sp-2); }
.gap-3 { gap: var(--sp-3); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }
.gap-12 { gap: var(--sp-12); }

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ── 5. Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--trans-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: var(--trans-fast);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--grad-primary);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(108,63,245,0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108,63,245,0.6);
}

.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border: 1.5px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--clr-accent);
  color: #000;
  box-shadow: 0 4px 20px rgba(0,212,255,0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,212,255,0.5);
}

.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }
.btn-sm { padding: 0.5rem 1.25rem; font-size: 0.8125rem; }

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

/* ── 6. Cards ─────────────────────────────────────────────── */
.card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  backdrop-filter: blur(10px);
  transition: var(--trans-slow);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(108,63,245,0.4);
  box-shadow: var(--shadow-glow);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(108,63,245,0.15);
  border: 1px solid rgba(108,63,245,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
  font-size: 1.4rem;
}

.card h4, .card h3 {
  margin-bottom: var(--sp-2);
}

/* ── 7. Navigation ────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: var(--trans-slow);
}

.nav.scrolled {
  background: rgba(6,4,15,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--clr-white);
  letter-spacing: -0.03em;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--grad-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-glow);
}

.nav-logo span.accent { color: var(--clr-accent); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: var(--trans-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-primary);
  border-radius: var(--radius-full);
  transition: var(--trans-base);
}

.nav-link:hover { color: var(--clr-white); }
.nav-link:hover::after { width: 100%; }

.nav-cta { margin-left: var(--sp-4); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--sp-2);
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: var(--radius-full);
  transition: var(--trans-base);
}

/* ── 8. Hero Section ──────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background: var(--grad-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-glow);
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: 0;
}

@keyframes float-particle {
  0%   { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-10vh) rotate(360deg); opacity: 0; }
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,63,245,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,63,245,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
  padding: var(--sp-16) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: rgba(108,63,245,0.15);
  border: 1px solid rgba(108,63,245,0.35);
  border-radius: var(--radius-full);
  padding: var(--sp-2) var(--sp-4);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-primary-light);
  margin-bottom: var(--sp-5);
  letter-spacing: 0.04em;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--clr-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0.6); }
  50%       { box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.hero h1 {
  margin-bottom: var(--sp-5);
}

.hero h1 .line-2 {
  display: block;
  color: var(--clr-text-muted);
  font-size: 0.65em;
  font-weight: 500;
  letter-spacing: 0em;
  margin-top: var(--sp-3);
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: var(--sp-8);
  max-width: 540px;
}

.hero-stats {
  display: flex;
  gap: var(--sp-8);
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--clr-border);
}

.hero-stat .num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1;
}

.hero-stat .lbl {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  margin-top: var(--sp-1);
}

/* ── 9. AI Dashboard Visual ───────────────────────────────── */
.dashboard-visual {
  position: relative;
  padding: var(--sp-4);
}

.dashboard-card {
  background: rgba(14,10,30,0.95);
  border: 1px solid rgba(108,63,245,0.3);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.7), 0 0 60px rgba(108,63,245,0.2);
  animation: float-card 6s ease-in-out infinite;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50%       { transform: translateY(-12px) rotate(0.5deg); }
}

.db-header {
  background: linear-gradient(90deg, rgba(108,63,245,0.2) 0%, rgba(0,212,255,0.1) 100%);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--sp-3) var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.db-dots {
  display: flex;
  gap: var(--sp-2);
}

.db-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.db-dots span:nth-child(1) { background: #ff5f57; }
.db-dots span:nth-child(2) { background: #febc2e; }
.db-dots span:nth-child(3) { background: #28c840; }

.db-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

.db-body { padding: var(--sp-4); }

.db-kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.db-kpi {
  background: rgba(108,63,245,0.1);
  border: 1px solid rgba(108,63,245,0.15);
  border-radius: var(--radius-md);
  padding: var(--sp-3);
}

.db-kpi .kpi-icon {
  font-size: 1rem;
  margin-bottom: var(--sp-1);
}

.db-kpi .kpi-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--clr-white);
  font-family: var(--font-mono);
}

.db-kpi .kpi-lbl {
  font-size: 0.6rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.db-kpi .kpi-change {
  font-size: 0.65rem;
  color: var(--clr-success);
  font-weight: 600;
}

.db-charts-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.db-chart-box {
  background: rgba(22,15,46,0.8);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-3);
}

.db-chart-box .chart-title {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--sp-2);
}

/* SVG Chart bars */
.bar-chart-svg { width: 100%; height: 80px; }
.pie-chart-svg { width: 100%; height: 80px; }

.db-ai-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}

.db-ai-alert {
  background: rgba(108,63,245,0.1);
  border: 1px solid rgba(108,63,245,0.2);
  border-left: 3px solid var(--clr-primary);
  border-radius: var(--radius-sm);
  padding: var(--sp-3);
}

.db-ai-alert.ai-success {
  background: rgba(34,197,94,0.08);
  border-color: rgba(34,197,94,0.2);
  border-left-color: var(--clr-success);
}

.db-ai-alert.ai-warning {
  background: rgba(245,158,11,0.08);
  border-color: rgba(245,158,11,0.2);
  border-left-color: var(--clr-warning);
}

.db-ai-alert .alert-label {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-primary-light);
  margin-bottom: var(--sp-1);
}

.db-ai-alert.ai-success .alert-label { color: var(--clr-success); }
.db-ai-alert.ai-warning .alert-label { color: var(--clr-warning); }

.db-ai-alert .alert-text {
  font-size: 0.65rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
}

.db-footer-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
}

.db-sparkline {
  background: rgba(22,15,46,0.8);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.db-sparkline .spark-label {
  font-size: 0.6rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.db-sparkline .spark-val {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-white);
  font-family: var(--font-mono);
}

.db-sparkline .spark-change {
  font-size: 0.6rem;
  color: var(--clr-success);
  font-weight: 600;
}

.spark-bars {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 28px;
  margin-top: var(--sp-1);
}

.spark-bar {
  flex: 1;
  border-radius: 2px;
  background: var(--grad-primary);
  opacity: 0.7;
  animation: grow-bar 0.8s ease forwards;
  transform-origin: bottom;
}

@keyframes grow-bar {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

/* Floating badges on dashboard */
.dashboard-badge {
  position: absolute;
  background: rgba(14,10,30,0.95);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-2) var(--sp-3);
  font-size: 0.72rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  animation: float-badge 4s ease-in-out infinite;
}

.dashboard-badge.badge-top-right {
  top: -16px;
  right: -16px;
  color: var(--clr-success);
  animation-delay: -1s;
}

.dashboard-badge.badge-bottom-left {
  bottom: 12px;
  left: -24px;
  color: var(--clr-accent);
  animation-delay: -2s;
}

@keyframes float-badge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* ── 10. Marquee / Ticker ──────────────────────────────────── */
.marquee-section {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--sp-4) 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  gap: var(--sp-8);
  animation: marquee-scroll 30s linear infinite;
  width: max-content;
}

.marquee-track:hover { animation-play-state: paused; }

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.marquee-item .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-primary);
}

/* ── 11. Stats Counter Strip ──────────────────────────────── */
.stats-strip {
  background: linear-gradient(90deg, rgba(108,63,245,0.08) 0%, rgba(0,212,255,0.05) 100%);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-10) var(--sp-8);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-6);
  text-align: center;
}

.stat-item {
  position: relative;
}

.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10%;
  height: 80%;
  width: 1px;
  background: var(--clr-border);
}

.stat-item .stat-num {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  color: var(--clr-white);
  font-family: var(--font-mono);
  line-height: 1;
}

.stat-item .stat-num .counter-suffix {
  color: var(--clr-accent);
}

.stat-item .stat-lbl {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  margin-top: var(--sp-2);
}

/* ── 12. What Is AI MLM Section ───────────────────────────── */
.ai-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.ai-intro-visual {
  position: relative;
}

.pipeline-diagram {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-6);
}

.pipeline-step {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--radius-md);
  background: rgba(108,63,245,0.05);
  border: 1px solid var(--clr-border);
  transition: var(--trans-base);
}

.pipeline-step:hover {
  background: rgba(108,63,245,0.12);
  border-color: rgba(108,63,245,0.35);
}

.pipeline-step + .pipeline-step {
  margin-top: var(--sp-3);
}

.pipeline-arrow {
  width: 2px;
  height: 20px;
  background: var(--grad-primary);
  margin: 0 auto;
  position: relative;
}

.pipeline-arrow::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--clr-accent);
}

.step-num {
  min-width: 32px;
  height: 32px;
  background: var(--grad-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--clr-white);
  flex-shrink: 0;
}

.step-content h5 {
  font-size: 0.875rem;
  color: var(--clr-white);
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.75rem;
  line-height: 1.5;
}

/* ── 13. Core AI Capabilities (Feature Cards) ─────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.feature-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: var(--trans-slow);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transition: var(--trans-slow);
  transform-origin: left;
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(108,63,245,0.4);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--sp-4);
  position: relative;
}

.feature-icon.purple { background: rgba(108,63,245,0.15); border: 1px solid rgba(108,63,245,0.3); }
.feature-icon.cyan   { background: rgba(0,212,255,0.12);  border: 1px solid rgba(0,212,255,0.25); }
.feature-icon.green  { background: rgba(34,197,94,0.12);  border: 1px solid rgba(34,197,94,0.25); }
.feature-icon.orange { background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.25); }
.feature-icon.red    { background: rgba(239,68,68,0.12);  border: 1px solid rgba(239,68,68,0.25); }
.feature-icon.pink   { background: rgba(236,72,153,0.12); border: 1px solid rgba(236,72,153,0.25); }

.feature-card h4 { margin-bottom: var(--sp-2); font-size: 1.05rem; }
.feature-card p  { font-size: 0.875rem; line-height: 1.65; }

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(108,63,245,0.15);
  border: 1px solid rgba(108,63,245,0.2);
  color: var(--clr-primary-light);
}

/* ── 14. How AI Works Section ─────────────────────────────── */
.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  position: relative;
}

.how-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--clr-primary), var(--clr-accent), transparent);
  z-index: 0;
}

.how-step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: var(--sp-4);
}

.how-step-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--clr-bg-2);
  border: 2px solid var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--clr-primary-light);
  margin: 0 auto var(--sp-4);
  font-family: var(--font-mono);
  box-shadow: var(--shadow-glow);
}

.how-step h5 {
  font-size: 0.95rem;
  margin-bottom: var(--sp-2);
}

.how-step p { font-size: 0.8rem; }

/* ── 15. MLM Plans Section ────────────────────────────────── */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-4);
}

.plan-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5) var(--sp-4);
  text-align: center;
  transition: var(--trans-slow);
  cursor: default;
}

.plan-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.plan-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(108,63,245,0.12);
  border: 1px solid rgba(108,63,245,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--clr-primary-light);
  margin: 0 auto var(--sp-3);
}

.plan-card h5 {
  font-size: 0.9rem;
  margin-bottom: var(--sp-2);
}

.plan-card p { font-size: 0.75rem; }

.plan-badge {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(108,63,245,0.2);
  color: var(--clr-primary-light);
  border: 1px solid rgba(108,63,245,0.3);
  margin-top: var(--sp-2);
}

/* ── 16. Tabs Component ───────────────────────────────────── */
.tabs-wrapper { width: 100%; }

.tabs-nav {
  display: flex;
  gap: var(--sp-1);
  background: rgba(22,15,46,0.6);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  padding: var(--sp-1);
  width: fit-content;
  margin: 0 auto var(--sp-8);
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  transition: var(--trans-base);
}

.tab-btn.active,
.tab-btn:hover {
  background: var(--grad-primary);
  color: var(--clr-white);
}

.tab-panel { display: none; animation: fade-in 0.3s ease; }
.tab-panel.active { display: block; }

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

/* ── 17. Accordion (FAQ) ──────────────────────────────────── */
.accordion { max-width: 860px; margin: 0 auto; }

.accordion-item {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-3);
  overflow: hidden;
  transition: var(--trans-base);
}

.accordion-item.open {
  border-color: rgba(108,63,245,0.4);
  box-shadow: var(--shadow-glow);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  cursor: pointer;
  user-select: none;
  transition: var(--trans-fast);
}

.accordion-header:hover { background: rgba(108,63,245,0.06); }

.accordion-header h5 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-white);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary-light);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: var(--trans-base);
}

.accordion-item.open .accordion-icon {
  background: var(--grad-primary);
  color: var(--clr-white);
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}

.accordion-item.open .accordion-body { max-height: 500px; }

.accordion-body-inner {
  padding: 0 var(--sp-6) var(--sp-5);
  color: var(--clr-text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

/* ── 18. Testimonials Slider ──────────────────────────────── */
.testimonials-section { overflow: hidden; }

.slider-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.slider-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.4,0,0.2,1);
  will-change: transform;
}

.testimonial-card {
  min-width: 100%;
  width: 100%;
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-10) var(--sp-12);
  flex-shrink: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

@media (max-width: 640px) {
  .testimonial-card {
    padding: var(--sp-6) var(--sp-5);
  }
}

.testimonial-card .stars {
  color: var(--clr-warning);
  font-size: 0.875rem;
  margin-bottom: var(--sp-3);
  letter-spacing: 2px;
}

.testimonial-card blockquote {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--clr-text);
  margin-bottom: var(--sp-4);
  font-style: italic;
  position: relative;
}

.testimonial-card blockquote::before {
  content: '\201C';
  font-size: 3rem;
  color: var(--clr-primary);
  line-height: 0;
  vertical-align: -0.75rem;
  margin-right: 4px;
  font-family: Georgia, serif;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-white);
  flex-shrink: 0;
}

.author-info .name { font-size: 0.9rem; font-weight: 700; color: var(--clr-white); }
.author-info .role { font-size: 0.75rem; color: var(--clr-text-muted); }

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border);
  background: var(--clr-bg-2);
  color: var(--clr-white);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans-base);
  cursor: pointer;
}

.slider-btn:hover {
  border-color: var(--clr-primary);
  background: rgba(108,63,245,0.15);
}

.slider-dots {
  display: flex;
  gap: var(--sp-2);
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-text-faint);
  transition: var(--trans-base);
  cursor: pointer;
}

.slider-dot.active {
  width: 24px;
  border-radius: var(--radius-full);
  background: var(--grad-primary);
}

/* ── 19. Comparison Table ─────────────────────────────────── */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}

.comparison-table thead tr {
  background: linear-gradient(90deg, rgba(108,63,245,0.2) 0%, rgba(0,212,255,0.1) 100%);
}

.comparison-table th {
  padding: var(--sp-4) var(--sp-5);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
}

.comparison-table th:first-child { text-align: left; }

.comparison-table th.highlight-col {
  background: rgba(108,63,245,0.25);
  color: var(--clr-accent);
}

.comparison-table td {
  padding: var(--sp-4) var(--sp-5);
  text-align: center;
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.comparison-table td:first-child {
  text-align: left;
  color: var(--clr-text);
  font-weight: 500;
}

.comparison-table tbody tr:hover { background: rgba(108,63,245,0.04); }

.comparison-table td.highlight-col {
  background: rgba(108,63,245,0.06);
}

.check { color: var(--clr-success); font-size: 1rem; }
.cross { color: var(--clr-danger); font-size: 1rem; }
.partial { color: var(--clr-warning); font-size: 0.875rem; }

/* ── 20. Case Studies ─────────────────────────────────────── */
.case-study-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
}

.case-study-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--trans-slow);
  display: grid;
  grid-template-columns: 280px 1fr;
}

.case-study-card:hover {
  box-shadow: var(--shadow-glow);
  border-color: rgba(108,63,245,0.4);
}

.case-study-card:nth-child(even) {
  grid-template-columns: 1fr 280px;
}

.case-study-card:nth-child(even) .case-study-header {
  order: 2;
}
.case-study-card:nth-child(even) .case-study-body {
  order: 1;
}

.case-study-header {
  padding: var(--sp-8) var(--sp-6);
  background: linear-gradient(160deg, rgba(108,63,245,0.18) 0%, rgba(0,212,255,0.08) 100%);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--sp-4);
}

.case-study-card:nth-child(even) .case-study-header {
  border-right: none;
  border-left: 1px solid var(--clr-border);
}

.case-number {
  font-size: 4rem;
  font-weight: 900;
  font-family: var(--font-mono);
  line-height: 1;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── 21. Index Page — Migrated from inline <style> ────────── */
/* Section background alternation */
.section-alt { background: var(--clr-bg-2); }

/* Industries Grid */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
.industry-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  text-align: center;
  transition: var(--trans-slow);
}
.industry-card:hover {
  transform: translateY(-5px);
  border-color: rgba(108,63,245,.4);
  box-shadow: var(--shadow-glow);
}
.industry-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto var(--sp-3);
}
.industry-card h5 { font-size: .92rem; margin-bottom: var(--sp-2); }
.industry-card p  { font-size: .78rem; }

/* AI Technology Cards */
.ai-tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.ai-tech-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: var(--trans-slow);
}
.ai-tech-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108,63,245,.4);
  box-shadow: var(--shadow-glow);
}
.ai-tech-label {
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-2);
}
.ai-tech-card h4 { font-size: 1rem; margin-bottom: var(--sp-2); }
.ai-tech-card p  { font-size: .82rem; line-height: 1.65; }
.ai-model-chip {
  display: inline-block;
  font-size: .65rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(108,63,245,.15);
  border: 1px solid rgba(108,63,245,.25);
  color: var(--clr-primary-light);
  margin: 2px;
}

/* Pricing Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}
.pricing-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  position: relative;
  transition: var(--trans-slow);
}
.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}
.pricing-card.featured {
  border-color: rgba(108,63,245,.6);
  box-shadow: 0 0 40px rgba(108,63,245,.2);
}
.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-primary);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: .05em;
}
.pricing-plan {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-accent);
  margin-bottom: var(--sp-3);
}
.pricing-price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--clr-white);
  font-family: var(--font-mono);
  line-height: 1;
}
.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-text-muted);
}
.pricing-desc {
  font-size: .82rem;
  color: var(--clr-text-muted);
  margin: var(--sp-3) 0 var(--sp-5);
}
.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}
.pricing-features li {
  font-size: .85rem;
  color: var(--clr-text-muted);
  display: flex;
  gap: var(--sp-2);
  align-items: flex-start;
}
.pricing-features li::before {
  content: '✓';
  color: var(--clr-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* Why Choose Cards */
.why-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.why-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: var(--trans-slow);
}
.why-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108,63,245,.4);
  box-shadow: var(--shadow-glow);
}
.why-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(108,63,245,.15);
  border: 1px solid rgba(108,63,245,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--sp-4);
}
.why-card h4 { font-size: 1rem; margin-bottom: var(--sp-2); }
.why-card p  { font-size: .82rem; line-height: 1.65; }

/* Benefits Cards */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.benefit-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: var(--trans-slow);
}
.benefit-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108,63,245,.4);
  box-shadow: var(--shadow-glow);
}
.benefit-num {
  font-size: .65rem;
  font-weight: 700;
  color: var(--clr-accent);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.benefit-stat {
  font-size: 2rem;
  font-weight: 900;
  color: var(--clr-white);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: var(--sp-2);
}
.benefit-card h4 { font-size: .95rem; margin-bottom: var(--sp-2); }
.benefit-card p  { font-size: .8rem; line-height: 1.65; }

/* Sticky CTA Bar */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 400;
  background: rgba(6,4,15,.96);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-3) var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  transform: translateY(100%);
  transition: transform .4s cubic-bezier(.4,0,.2,1);
}
.sticky-cta.visible   { transform: translateY(0); }
.sticky-cta-text      { font-size: .85rem; color: var(--clr-text-muted); }
.sticky-cta-text strong { color: var(--clr-white); }
.sticky-cta-actions {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  flex-shrink: 0;
}

/* Scroll-progress bar */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #6c3ff5, #00d4ff);
  z-index: 9999;
  width: 0%;
  transition: width .1s linear;
}

/* ── Responsive overrides (index page components) ──────────── */
@media (max-width: 900px) {
  .industries-grid  { grid-template-columns: repeat(2, 1fr); }
  .ai-tech-grid     { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid     { grid-template-columns: 1fr; }
  .why-cards-grid   { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid    { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .industries-grid  { grid-template-columns: repeat(2, 1fr); }
  .ai-tech-grid     { grid-template-columns: 1fr; }
  .pricing-grid     { grid-template-columns: 1fr; }
  .why-cards-grid   { grid-template-columns: 1fr; }
  .benefits-grid    { grid-template-columns: 1fr; }
  .sticky-cta-text  { display: none; }
}

.case-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  display: inline-block;
  width: fit-content;
}

.case-study-header h4 {
  font-size: 1.15rem;
  line-height: 1.4;
}

.case-study-body { padding: var(--sp-8) var(--sp-7); }

.case-metrics-row {
  display: flex;
  gap: var(--sp-4);
  margin: var(--sp-5) 0;
  flex-wrap: wrap;
}

.case-metric {
  flex: 1;
  min-width: 100px;
  text-align: center;
  padding: var(--sp-4) var(--sp-3);
  background: rgba(108,63,245,0.07);
  border: 1px solid rgba(108,63,245,0.15);
  border-radius: var(--radius-md);
  transition: var(--trans-base);
}

.case-metric:hover {
  background: rgba(108,63,245,0.14);
  border-color: rgba(108,63,245,0.3);
}

.metric-val {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--clr-white);
  font-family: var(--font-mono);
  line-height: 1;
  display: block;
}

.metric-val.green { color: var(--clr-success); }
.metric-val.cyan  { color: var(--clr-accent); }
.metric-val.purple{ color: var(--clr-primary-light); }

.metric-info .metric-name { font-size: 0.78rem; color: var(--clr-white); font-weight: 600; margin-top: var(--sp-2); }
.metric-info .metric-desc { font-size: 0.68rem; color: var(--clr-text-muted); margin-top: 2px; }

@media (max-width: 900px) {
  .case-study-card,
  .case-study-card:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .case-study-card:nth-child(even) .case-study-header,
  .case-study-card:nth-child(even) .case-study-body {
    order: unset;
  }
  .case-study-card:nth-child(even) .case-study-header {
    border-left: none;
    border-bottom: 1px solid var(--clr-border);
  }
  .case-study-header {
    border-right: none;
    border-bottom: 1px solid var(--clr-border);
    padding: var(--sp-6);
  }
}

/* ── 21. Architecture Section ─────────────────────────────── */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

.arch-visual {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-6);
}

.arch-layer {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  margin-bottom: var(--sp-3);
  position: relative;
  overflow: hidden;
}

.arch-layer::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
}

.arch-layer.layer-data::before  { background: var(--clr-accent); }
.arch-layer.layer-ai::before    { background: var(--clr-primary); }
.arch-layer.layer-engine::before{ background: var(--clr-success); }
.arch-layer.layer-output::before{ background: var(--clr-warning); }

.arch-layer-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-2);
}

.arch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.arch-chip {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(108,63,245,0.12);
  border: 1px solid rgba(108,63,245,0.2);
  color: var(--clr-text);
}

.arch-chip.cyan  { background: rgba(0,212,255,0.1);  border-color: rgba(0,212,255,0.2);  color: var(--clr-accent); }
.arch-chip.green { background: rgba(34,197,94,0.1);  border-color: rgba(34,197,94,0.2);  color: var(--clr-success); }
.arch-chip.orange{ background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.2); color: var(--clr-warning); }

.arch-connector {
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-faint);
  font-size: 1rem;
}

/* ── 22. Trust Section ────────────────────────────────────── */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.trust-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  text-align: center;
}

.trust-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: rgba(108,63,245,0.12);
  border: 1px solid rgba(108,63,245,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--clr-primary-light);
  margin: 0 auto var(--sp-4);
}

/* ── 23. CTA Section ──────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, rgba(108,63,245,0.15) 0%, rgba(0,212,255,0.08) 100%);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-16) var(--sp-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(108,63,245,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-trust-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}

.trust-badge .badge-icon { color: var(--clr-success); }

/* ── 24. Contact / Demo Strip ─────────────────────────────── */
.contact-strip {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6) var(--sp-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  align-items: center;
  justify-content: space-between;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(108,63,245,0.15);
  border: 1px solid rgba(108,63,245,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item .label { font-size: 0.7rem; color: var(--clr-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.contact-item .value { font-size: 0.9rem; font-weight: 600; color: var(--clr-white); }
.contact-item a:hover { color: var(--clr-accent); }

/* ── 25. Footer ───────────────────────────────────────────── */
.footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-16) 0 var(--sp-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-8);
  margin-bottom: var(--sp-12);
}

.footer-brand .logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--clr-white);
  margin-bottom: var(--sp-4);
}

.footer-brand .logo-icon {
  width: 34px;
  height: 34px;
  background: var(--grad-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  transition: var(--trans-base);
}

.social-link:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary-light);
  background: rgba(108,63,245,0.1);
}

.footer-col h6 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-4);
}

.footer-links { display: flex; flex-direction: column; gap: var(--sp-3); }

.footer-links a {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  transition: var(--trans-fast);
}

.footer-links a:hover { color: var(--clr-white); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.footer-bottom p { font-size: 0.8rem; }

.footer-bottom-links {
  display: flex;
  gap: var(--sp-4);
}

.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  transition: var(--trans-fast);
}

.footer-bottom-links a:hover { color: var(--clr-white); }

/* ── 26. Misc Components ──────────────────────────────────── */
.badge-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: 0.78rem;
  font-weight: 600;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  background: rgba(108,63,245,0.12);
  border: 1px solid rgba(108,63,245,0.2);
  color: var(--clr-primary-light);
}

.divider {
  border: none;
  border-top: 1px solid var(--clr-border);
  margin: var(--sp-8) 0;
}

.highlight-box {
  background: rgba(108,63,245,0.07);
  border: 1px solid rgba(108,63,245,0.2);
  border-left: 4px solid var(--clr-primary);
  border-radius: var(--radius-md);
  padding: var(--sp-5) var(--sp-6);
}

.highlight-box h5 { color: var(--clr-primary-light); margin-bottom: var(--sp-2); }

.numbered-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.numbered-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
}

.num-badge {
  min-width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--clr-white);
  flex-shrink: 0;
  margin-top: 2px;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.check-list li {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--clr-text-muted);
}

.check-list li::before {
  content: '✓';
  color: var(--clr-success);
  font-weight: 700;
  flex-shrink: 0;
}

.scenario-box {
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  margin: var(--sp-8) 0;
}

.scenario-box .scenario-title {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius-full);
  padding: var(--sp-2) var(--sp-4);
  margin-bottom: var(--sp-4);
}

.scenario-steps {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.scenario-step {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-3) var(--sp-4);
  background: rgba(108,63,245,0.05);
  border-radius: var(--radius-sm);
}

.scenario-step .s-icon { flex-shrink: 0; font-size: 1.1rem; }
.scenario-step .s-text { font-size: 0.875rem; color: var(--clr-text-muted); }
.scenario-step .s-text strong { color: var(--clr-white); }

.outcome-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.outcome-item {
  flex: 1;
  min-width: 120px;
  text-align: center;
  padding: var(--sp-4);
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: var(--radius-md);
}

.outcome-item .out-val {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--clr-success);
  font-family: var(--font-mono);
}

.outcome-item .out-lbl { font-size: 0.72rem; color: var(--clr-text-muted); }

/* Why Choose section */
.why-choose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.why-choose-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.why-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  padding: var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: var(--trans-base);
}

.why-item:hover {
  background: rgba(108,63,245,0.06);
  border-color: var(--clr-border);
}

.why-item .wi-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(108,63,245,0.15);
  border: 1px solid rgba(108,63,245,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.why-item .wi-text h5 { font-size: 0.95rem; margin-bottom: var(--sp-1); }
.why-item .wi-text p  { font-size: 0.82rem; }

.why-choose-visual {
  position: relative;
  background: var(--clr-bg-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile Nav Overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6,4,15,0.96);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-6);
}

.nav-overlay.open { display: flex; }

.nav-overlay .nav-link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-text);
}

/* ── 27. Responsive Breakpoints ──────────────────────────── */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .plans-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-10); }
  .hero-stats { flex-wrap: wrap; gap: var(--sp-6); }
  .ai-intro-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how-steps { grid-template-columns: repeat(2, 1fr); }
  .how-steps::before { display: none; }
  .case-study-grid { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .why-choose-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .db-kpi-row { grid-template-columns: repeat(2, 1fr); }
  .db-charts-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .comparison-table { font-size: 0.8rem; }
  .testimonial-card { min-width: calc(80vw); }
  .comparison-table th, .comparison-table td { padding: var(--sp-3) var(--sp-3); }
  .cta-section { padding: var(--sp-10) var(--sp-6); }
}

@media (max-width: 640px) {
  :root { --container-pad: 1rem; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .plans-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .db-kpi-row { grid-template-columns: repeat(2, 1fr); }
  .db-ai-row { grid-template-columns: 1fr; }
  .db-footer-row { grid-template-columns: 1fr; }
  .contact-strip { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .outcome-strip { flex-direction: column; }
  .hero-stats { flex-direction: column; gap: var(--sp-4); }
  .how-steps { grid-template-columns: 1fr; }
}

/* ── 28. Utility / Animation Helpers ─────────────────────── */
.mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-3); }
.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mt-10{ margin-top: var(--sp-10); }
.mb-2 { margin-bottom: var(--sp-2); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }
.pt-0 { padding-top: 0; }

.w-full { width: 100%; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }

/* Animations */
@keyframes slide-in-left {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

.anim-left  { animation: slide-in-left  0.7s ease both; }
.anim-right { animation: slide-in-right 0.7s ease both; }
.anim-scale { animation: scale-in       0.5s ease both; }

/* Glassmorphism card variant */
.glass-card {
  background: rgba(26,19,51,0.5);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
}

/* Progress Bar */
.progress-bar-wrap {
  background: rgba(108,63,245,0.12);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  margin-top: var(--sp-2);
}

.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--grad-primary);
  transition: width 1.5s cubic-bezier(0.4,0,0.2,1);
  width: 0;
}

.progress-row {
  margin-bottom: var(--sp-4);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--sp-1);
}

.progress-header span:first-child { font-size: 0.82rem; color: var(--clr-text); }
.progress-header span:last-child  { font-size: 0.82rem; color: var(--clr-accent); font-weight: 700; }

/* Section backgrounds alternating */
.section-alt { background: var(--clr-bg-2); }
.section-alt2 { background: var(--clr-bg-3); }