/*
  AFBWEB Landing Page
  Tech Confidence — Corporate Minimalism 2.0 (Vercel + Resend + Cal.com)
  Stack: Plain HTML + Custom CSS + Vanilla JS
  No frameworks, no build step
*/

/* =============================================================================
   01. DESIGN TOKENS
   ============================================================================= */

:root {
  /* Colors — Digital Architect: Technical Precision & Layered Clarity */
  --color-primary:    #191c1e;
  --color-background: #f7f9fb;
  --color-surface:    #FFFFFF;
  --color-text:       #191c1e;
  --color-muted:      #6e7478;
  --color-accent:     #0058bc;
  --color-accent-hover: #004a9e;
  --color-warm:       #E07335;
  --color-error:      #DC2626;
  --color-success:    #16A34A;
  --color-border:     #e0e3e5;
  --color-violet:     #0070eb;
  --color-emerald:    #059669;

  /* Typography */
  --font-headings: 'Sora', sans-serif;
  --font-body:     'Be Vietnam Pro', sans-serif;

  /* Sizing */
  --nav-height:    80px;
  --radius:        10px;
  --radius-sm:     6px;
  --radius-lg:     14px;
  --radius-xl:     20px;
  --container:     1200px;

  /* Spacing scale (8px base) */
  --space-1:  8px;
  --space-2:  16px;
  --space-3:  24px;
  --space-4:  32px;
  --space-5:  40px;
  --space-6:  48px;
  --space-8:  64px;
  --space-10: 80px;
  --space-12: 96px;
  --space-16: 128px;

  /* Shadows — tinted with on-surface, never pure black */
  --shadow-sm:   0 1px 2px rgba(25, 28, 30, 0.02), 0 1px 3px rgba(25, 28, 30, 0.03);
  --shadow-md:   0 2px 4px rgba(25, 28, 30, 0.03), 0 4px 8px rgba(25, 28, 30, 0.03);
  --shadow-lg:   0 8px 24px rgba(25, 28, 30, 0.06);
  --shadow-glow: 0 0 20px rgba(0, 88, 188, 0.08);

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #0058bc 0%, #0070eb 100%);
  --gradient-accent-size: 200% auto;

  /* Transitions */
  --transition-fast:   150ms ease-out;
  --transition-normal: 250ms ease-out;
  --transition-slow:   400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Border */
  --border-subtle: 1px solid var(--color-border);
}

/* =============================================================================
   02. 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-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* =============================================================================
   03. TYPOGRAPHY
   ============================================================================= */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.25rem, 4vw, 3.5rem); letter-spacing: -1px; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
  color: var(--color-text);
  line-height: 1.7;
}

.text-muted {
  color: var(--color-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-warm), var(--color-accent));
  border-radius: 1px;
}

/* =============================================================================
   04. LAYOUT
   ============================================================================= */

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section--alt {
  background-color: #f2f4f6;
  background-image: linear-gradient(135deg, rgba(0, 88, 188, 0.02) 0%, transparent 50%, rgba(0, 112, 235, 0.02) 100%);
}

/* =============================================================================
   05. BUTTONS
   ============================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-family: var(--font-headings);
  font-size: 0.9375rem;
  font-weight: 600;
  height: 48px;
  padding: 0 var(--space-3);
  border-radius: var(--radius);
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Primary */
.btn-primary {
  background: var(--gradient-accent);
  background-size: var(--gradient-accent-size);
  color: #FFFFFF;
  border: 1px solid transparent;
  transition: background-position var(--transition-normal),
              box-shadow var(--transition-normal),
              transform var(--transition-fast);
}

.btn-primary:hover {
  background-position: right center;
  box-shadow: 0 4px 16px rgba(0, 88, 188, 0.3);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(0, 88, 188, 0.2);
}

/* Secondary (outline) */
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: var(--border-subtle);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background-color: rgba(25, 28, 30, 0.03);
}

/* Ghost (text link style) */
.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid transparent;
  padding: 0 var(--space-2);
}

.btn-ghost:hover {
  color: var(--color-accent);
}

/* Dark */
.btn-dark {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-primary);
}

.btn-dark:hover {
  background-color: #272b2f;
}

/* Small */
.btn-sm {
  height: 38px;
  padding: 0 var(--space-2);
  font-size: 0.875rem;
}

/* =============================================================================
   06. NAVIGATION
   ============================================================================= */

#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  will-change: background-color, border-color;
  z-index: 100;
  height: var(--nav-height);
  background-color: var(--color-surface);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-normal),
              background-color var(--transition-normal),
              box-shadow var(--transition-normal);
}

#site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: var(--space-4);
}

.nav-logo img {
  height: 42px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: var(--space-2);
  right: var(--space-2);
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-violet));
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-hamburger:hover {
  background-color: var(--color-border);
}

/* Mobile nav open state */
body.nav-open #site-header {
  border-bottom-color: var(--color-border);
}

/* =============================================================================
   07. HERO
   ============================================================================= */

.section-hero {
  padding-top: calc(var(--nav-height) + var(--space-10));
  padding-bottom: calc(var(--space-16) + 60px);
  overflow: hidden;
  position: relative;
  background-color: var(--color-background);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 40%, rgba(0, 88, 188, 0.07) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 75% 20%, rgba(0, 112, 235, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 50% 80%, rgba(224, 115, 53, 0.04) 0%, transparent 70%),
    radial-gradient(circle, rgba(148, 163, 184, 0.2) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 28px 28px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-8);
  position: relative;
  z-index: 1;
}

.hero-text {
  max-width: 580px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-muted);
  background-color: var(--color-surface);
  border: var(--border-subtle);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: var(--space-4);
}

.hero-badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-warm);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(224, 115, 53, 0.4);
}

.hero-preheading {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
  letter-spacing: -0.2px;
}

.hero-text h1 {
  margin-bottom: var(--space-3);
}

.hero-subtext {
  font-size: 1.0625rem;
  color: #6e7478;
  margin-bottom: var(--space-5);
  max-width: 480px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ── Hero Dashboard ── */
.hero-graphic {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 520px;
  width: 100%;
  justify-self: center;
}

.dash-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* ── KPI Card ── */
.dash-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 22px 20px 18px;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s, transform 0.3s;
}

.dash-card:hover {
  box-shadow: 0 8px 24px rgba(0, 88, 188, 0.10);
  transform: translateY(-2px);
}

.dash-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.dash-card__label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-muted);
}

.dash-card__icon {
  width: 32px;
  height: 32px;
  padding: 7px;
  background: rgba(0, 88, 188, 0.08);
  border-radius: 8px;
  flex-shrink: 0;
}

.dash-card__value {
  font-family: var(--font-headings);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 12px;
}

.dash-card__value small {
  font-size: 1.2rem;
  font-weight: 600;
}

.dash-card__sub {
  font-size: 0.7rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 10px;
}

/* Progress bar */
.dash-bar {
  height: 7px;
  background: #e8ecef;
  border-radius: 4px;
  overflow: hidden;
}

.dash-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-violet));
  border-radius: 4px;
  animation: dash-fill 1.2s ease-out 0.6s both;
}

@keyframes dash-fill {
  from { width: 0; }
}

/* Mini bar chart */
.dash-bars-mini {
  display: flex;
  align-items: flex-end;
  gap: 7px;
  height: 36px;
}

.dash-bars-mini span {
  flex: 1;
  background: var(--color-accent);
  border-radius: 3px 3px 0 0;
  opacity: 0.35;
  animation: dash-bar-grow 0.6s ease-out both;
}

.dash-bars-mini span:nth-child(1) { animation-delay: 0.7s; }
.dash-bars-mini span:nth-child(2) { animation-delay: 0.85s; opacity: 0.55; }
.dash-bars-mini span:nth-child(3) { animation-delay: 1.0s; opacity: 0.75; }
.dash-bars-mini span:nth-child(4) { animation-delay: 1.15s; opacity: 1; }

@keyframes dash-bar-grow {
  from { height: 0; }
}

/* ── Live Ticker Card ── */
.dash-ticker {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 16px 20px;
}

.dash-ticker__icon {
  width: 38px;
  height: 38px;
  padding: 8px;
  background: rgba(22, 163, 74, 0.08);
  border-radius: 10px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dash-ticker__content {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.dash-ticker__value {
  font-family: var(--font-headings);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-success);
  font-variant-numeric: tabular-nums;
}

.dash-ticker__label {
  font-size: 0.78rem;
  color: var(--color-muted);
  line-height: 1.3;
}

/* ── AI Chat Card ── */
.dash-chat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.dash-chat:hover {
  box-shadow: 0 8px 24px rgba(0, 88, 188, 0.08);
}

.dash-chat__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.dash-chat__avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dash-chat__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dash-chat__name {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.dash-chat__status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-success);
}

.dash-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: dash-pulse 2s infinite;
}

@keyframes dash-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.dash-chat__body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Chat Bubbles ── */
.dash-bubble {
  font-family: var(--font-body);
  font-size: 0.84rem;
  line-height: 1.5;
  padding: 11px 16px;
  border-radius: 14px;
  max-width: 90%;
}

.dash-bubble--user {
  align-self: flex-end;
  background: var(--color-accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.dash-bubble--ai {
  align-self: flex-start;
  background: var(--color-background);
  color: var(--color-text);
  border-bottom-left-radius: 4px;
}

.dash-bubble--ai strong {
  color: var(--color-accent);
}

/* ── Staggered entrance ── */
.dash-anim {
  opacity: 0;
  transform: translateY(16px);
  animation: dash-appear 0.5s ease-out forwards;
}

.dash-anim--1 { animation-delay: 0.15s; }
.dash-anim--2 { animation-delay: 0.35s; }
.dash-anim--3 { animation-delay: 0.6s; }
.dash-anim--4 { animation-delay: 0.85s; }
.dash-anim--5 { animation-delay: 1.3s; }
.dash-anim--6 { animation-delay: 2.0s; }

@keyframes dash-appear {
  to { opacity: 1; transform: translateY(0); }
}

/* =============================================================================
   08. CLIENTS TICKER
   ============================================================================= */

.section-clients {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  border-top: var(--border-subtle);
  border-bottom: var(--border-subtle);
  background-color: var(--color-surface);
  overflow: hidden;
}

.clients-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-5);
}

.ticker-wrapper {
  overflow: hidden;
  width: 100%;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.ticker-track {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  width: max-content;
  animation: ticker-scroll 24s linear infinite;
}

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

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-25%); }
}

.ticker-item {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.ticker-item img {
  height: auto;
  max-height: 72px;
  width: auto;
  filter: grayscale(100%) opacity(0.45);
  transition: filter var(--transition-normal);
}

.ticker-item img:hover {
  filter: grayscale(0%) opacity(0.85);
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
    justify-content: center;
    flex-wrap: wrap;
  }
  .ticker-wrapper {
    -webkit-mask-image: none;
    mask-image: none;
  }
}

/* =============================================================================
   09. PRODUCTS
   ============================================================================= */

.section-header {
  margin-bottom: var(--space-8);
}

.section-header--center {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  margin-top: var(--space-2);
  color: #6e7478;
  font-size: 1.0625rem;
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.product-card {
  background-color: var(--color-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.product-card:hover {
  border-color: rgba(0, 88, 188, 0.3);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.product-tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: rgba(0, 88, 188, 0.06);
  border: 1px solid rgba(0, 88, 188, 0.15);
  border-radius: 3px;
  padding: 3px 8px;
  width: fit-content;
}

.product-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.product-card p {
  color: #6e7478;
  flex: 1;
}

.product-screenshot {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-background);
  border: var(--border-subtle);
}

.product-screenshot--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #edf0f5 0%, #dce1ea 100%);
}

.product-screenshot-label {
  font-family: var(--font-headings);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.35;
  letter-spacing: -0.5px;
}

.product-screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
}

.product-features {
  list-style: none;
  padding: 0;
  margin-top: var(--space-1);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.product-features li {
  font-size: 0.875rem;
  color: #6e7478;
  padding-left: 20px;
  position: relative;
}

.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  opacity: 0.5;
}

/* =============================================================================
   10. SERVICES GRID
   ============================================================================= */

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-slow),
              border-color var(--transition-normal),
              box-shadow var(--transition-slow),
              background var(--transition-normal);
}

.service-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-accent);
  border-radius: var(--radius) 0 0 var(--radius);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-3px) scale(1.015);
  border-color: rgba(0, 88, 188, 0.3);
  box-shadow: var(--shadow-md), 0 0 20px rgba(0, 88, 188, 0.08);
  background: linear-gradient(135deg, #FFFFFF 0%, #f2f4f6 100%);
}

.service-card:hover::before {
  transform: scaleY(1);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-3);
  color: var(--color-accent);
}

.service-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-1);
}

.service-card p {
  font-size: 0.9375rem;
  color: #6e7478;
  line-height: 1.6;
}

/* Service icon color differentiation */
[data-service="custom"] .service-icon { color: var(--color-violet); }
[data-service="custom"].service-card:hover { border-color: rgba(0, 112, 235, 0.3); box-shadow: var(--shadow-md), 0 0 20px rgba(0, 112, 235, 0.08); background: linear-gradient(135deg, #FFFFFF 0%, #f2f4f6 100%); }
[data-service="custom"].service-card::before { background-color: var(--color-violet); }

[data-service="ai"] .service-icon { color: var(--color-emerald); }
[data-service="ai"].service-card:hover { border-color: rgba(5, 150, 105, 0.3); box-shadow: var(--shadow-md), 0 0 20px rgba(5, 150, 105, 0.08); background: linear-gradient(135deg, #FFFFFF 0%, #F0FDF9 100%); }
[data-service="ai"].service-card::before { background-color: var(--color-emerald); }

/* =============================================================================
   11. TECH STACK
   ============================================================================= */

.tech-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
}

.tech-text .section-header {
  margin-bottom: var(--space-4);
}

.tech-text p {
  color: #6e7478;
  font-size: 1.0rem;
}

.tech-stat {
  margin-top: var(--space-5);
  display: flex;
  gap: var(--space-6);
}

.tech-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tech-stat-number {
  font-family: var(--font-headings);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.tech-stat-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tech-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-surface);
  border: var(--border-subtle);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.tech-pill:hover {
  border-color: rgba(0, 88, 188, 0.3);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transform: translateY(-2px);
}

.tech-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-violet));
  flex-shrink: 0;
}

/* =============================================================================
   11b. PROCESS STEPS
   ============================================================================= */

.process-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.process-step:hover {
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transform: translateY(-3px) scale(1.015);
  border-color: rgba(0, 88, 188, 0.2);
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 36px;
  right: calc(-1 * var(--space-4) / 2 - 1px);
  width: var(--space-4);
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-violet));
  border-radius: 1px;
  z-index: 1;
}

.process-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(0, 88, 188, 0.1) 0%, rgba(0, 112, 235, 0.1) 100%);
  border: 1px solid rgba(0, 88, 188, 0.15);
  border-radius: 50%;
  font-family: var(--font-headings);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.process-step-content h3 {
  font-size: 1rem;
  margin-bottom: var(--space-1);
}

.process-step-content p {
  font-size: 0.875rem;
  color: #6e7478;
  line-height: 1.6;
}

.process-cta {
  text-align: center;
}

/* =============================================================================
   12. CONTACT + NEWSLETTER
   ============================================================================= */

.contact-inner {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Contact Form */
.contact-form-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--color-warm), var(--color-accent), var(--color-violet)) 1;
  border-image-slice: 1 0 0 0;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.contact-form-wrap h2 {
  font-size: 1.75rem;
}

.contact-info {
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9rem;
  color: #6e7478;
}

.contact-info-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Form elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-input,
.form-textarea {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-2);
  background-color: var(--color-surface);
  border: var(--border-subtle);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-textarea {
  height: 120px;
  padding: var(--space-2);
  resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 88, 188, 0.12);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.form-response {
  display: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
}

.form-response.success {
  display: block;
  background-color: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.2);
  color: var(--color-success);
}

.form-response.error {
  display: block;
  background-color: rgba(220, 38, 38, 0.06);
  border: 1px solid rgba(220, 38, 38, 0.15);
  color: var(--color-error);
}

/* Newsletter */
.newsletter-wrap {
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.newsletter-wrap h3 {
  color: #FFFFFF;
  font-size: 1.375rem;
}

.newsletter-wrap p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-input {
  flex: 1;
  height: 48px;
  padding: 0 var(--space-2);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  color: #FFFFFF;
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.newsletter-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.newsletter-input:focus {
  border-color: rgba(255, 255, 255, 0.4);
  background-color: rgba(255, 255, 255, 0.12);
}

.newsletter-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: #FFFFFF;
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
  cursor: pointer;
  border: none;
}

.newsletter-submit:hover {
  background-color: #004a9e;
}

.newsletter-response {
  font-size: 0.875rem;
  font-weight: 500;
}

.newsletter-response.success {
  color: #86EFAC;
}

.newsletter-response.error {
  color: #FCA5A5;
}

.newsletter-disclaimer {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

/* Newsletter Strip */
.section-newsletter-strip {
  background: linear-gradient(135deg, var(--color-primary) 0%, #272b2f 100%);
  padding: var(--space-6) 0;
}

.newsletter-strip-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.newsletter-strip-text {
  flex: 1;
  min-width: 240px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.newsletter-strip-text strong {
  color: #FFFFFF;
  font-family: var(--font-headings);
  font-size: 1rem;
  font-weight: 600;
}

.newsletter-strip-text span {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.875rem;
}

.newsletter-strip-inner .newsletter-disclaimer {
  width: 100%;
}

/* =============================================================================
   13. FOOTER
   ============================================================================= */

#site-footer {
  background-color: var(--color-primary);
  background-image:
    radial-gradient(ellipse 60% 50% at 10% 90%, rgba(0, 88, 188, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 85% 60%, rgba(0, 112, 235, 0.06) 0%, transparent 70%);
  padding-top: var(--space-10);
  padding-bottom: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-brand img {
  height: 28px;
  width: auto;
  margin-bottom: var(--space-3);
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--space-3);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.footer-social a:hover {
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
  background-color: rgba(255, 255, 255, 0.08);
}

/* =============================================================================
   14. WHATSAPP FLOAT
   ============================================================================= */

.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background-color: #25D366;
  color: #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.wa-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

/* =============================================================================
   15. SCROLL ANIMATIONS
   ============================================================================= */

.js-animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.js-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children in grids */
.services-grid .js-animate:nth-child(1) { transition-delay: 0ms; }
.services-grid .js-animate:nth-child(2) { transition-delay: 80ms; }
.services-grid .js-animate:nth-child(3) { transition-delay: 160ms; }

.stats-cards .js-animate:nth-child(1) { transition-delay: 0ms; }
.stats-cards .js-animate:nth-child(2) { transition-delay: 60ms; }
.stats-cards .js-animate:nth-child(3) { transition-delay: 120ms; }
.stats-cards .js-animate:nth-child(4) { transition-delay: 180ms; }

.process-steps .js-animate:nth-child(1) { transition-delay: 0ms; }
.process-steps .js-animate:nth-child(2) { transition-delay: 70ms; }
.process-steps .js-animate:nth-child(3) { transition-delay: 140ms; }
.process-steps .js-animate:nth-child(4) { transition-delay: 210ms; }

@media (prefers-reduced-motion: reduce) {
  .js-animate {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .services-grid .js-animate,
  .stats-cards .js-animate,
  .process-steps .js-animate {
    transition-delay: 0ms !important;
  }
}

/* =============================================================================
   16. RESPONSIVE
   ============================================================================= */

/* Large tablet: 1024px */
@media (max-width: 1024px) {
  .hero-inner {
    gap: var(--space-5);
  }

  .hero-graphic {
    max-width: 440px;
  }

  .dash-card__value {
    font-size: 2rem;
  }
}

/* Tablet: 768px */
@media (max-width: 768px) {

  :root {
    --nav-height: 64px;
    --space-16: 80px;
  }

  /* Nav — use position:absolute because backdrop-filter on header
     creates a containing block that breaks position:fixed */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: calc(100vh - var(--nav-height));
    height: calc(100dvh - var(--nav-height));
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-1);
    z-index: 99;
    border-top: var(--border-subtle);
    overflow-y: auto;
  }

  body.nav-open .nav-links {
    display: flex;
  }

  .nav-links a {
    font-size: 1.1rem;
    padding: var(--space-2) var(--space-2);
    width: 100%;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-right .btn {
    display: none;
  }

  body.nav-open .nav-right .btn {
    display: none;
  }

  /* Hero */
  .section-hero {
    padding-bottom: var(--space-10);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-subtext {
    max-width: 100%;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-graphic {
    max-width: 420px;
    margin: 0 auto;
  }

  .dash-card__value {
    font-size: 1.8rem;
  }

  .dash-bubble {
    font-size: 0.8rem;
  }

  .dash-ticker__value {
    font-size: 1.15rem;
  }

  /* Products */
  .products-grid {
    grid-template-columns: 1fr;
  }

  /* Tech */
  .tech-inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .tech-stat {
    gap: var(--space-4);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact-form-wrap {
    padding: var(--space-4);
  }

  /* Ticker */
  .ticker-track {
    gap: var(--space-5);
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  /* Hide scroll indicator on tablet/mobile */
  .scroll-indicator {
    display: none;
  }

  /* Disable hover transforms on touch-size screens */
  .service-card:hover,
  .process-step:hover,
  .stat-card:hover,
  .tech-pill:hover {
    transform: none;
  }
}

/* Mobile: 480px */
@media (max-width: 480px) {

  :root {
    --space-16: 56px;
  }

  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .hero-badge {
    font-size: 0.6875rem;
  }

  /* Hero CTAs full-width stacked */
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }

  /* Dashboard cards — stack on small screens */
  .hero-graphic {
    max-width: 100%;
  }

  .dash-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .dash-card {
    padding: 16px 16px 14px;
  }

  .dash-card__value {
    font-size: 1.5rem;
    margin-bottom: 8px;
  }

  .dash-card__value small {
    font-size: 1rem;
  }

  .dash-card__label {
    font-size: 0.65rem;
  }

  .dash-card__sub {
    font-size: 0.65rem;
    margin-top: 8px;
  }

  .dash-card__icon {
    width: 28px;
    height: 28px;
    padding: 5px;
  }

  .dash-ticker {
    padding: 12px 14px;
    gap: 10px;
  }

  .dash-ticker__icon {
    width: 32px;
    height: 32px;
    padding: 6px;
  }

  .dash-ticker__value {
    font-size: 1rem;
  }

  .dash-ticker__label {
    font-size: 0.7rem;
  }

  .dash-chat__head {
    padding: 12px 14px;
    gap: 10px;
  }

  .dash-chat__body {
    padding: 14px;
  }

  .dash-chat__name {
    font-size: 0.8rem;
  }

  .dash-bubble {
    font-size: 0.75rem;
    padding: 10px 12px;
  }

  .services-grid {
    gap: var(--space-2);
  }

  /* Case study results tighter */
  .case-result-number {
    font-size: 1.5rem;
  }

  .case-result {
    padding: var(--space-2) var(--space-3);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .wa-float {
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
  }
}

/* Medium: 640px+ - 2 col services */
@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Large: 1024px+ - 3 col services */
@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Process responsive */
@media (max-width: 1024px) {
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-step:not(:last-child)::after {
    display: none;
  }
}

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

/* =============================================================================
   17–18. STATS CARDS
   ============================================================================= */

.section-stats {
  padding: var(--space-10) 0;
}

.stats-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  perspective: 1200px;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-5) var(--space-3);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.stat-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* Light variant */
.stat-card--light {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}
.stat-card--light .stat-card-number { color: var(--color-primary); }
.stat-card--light .stat-card-label { color: var(--color-muted); }
.stat-card--light .stat-card-icon { color: var(--color-accent); }

/* Accent variant (blue → violet) */
.stat-card--accent {
  background: linear-gradient(135deg, #0058bc 0%, #0065d4 60%, #0070eb 100%);
}
.stat-card--accent .stat-card-number { color: #FFFFFF; }
.stat-card--accent .stat-card-label { color: rgba(255, 255, 255, 0.75); }
.stat-card--accent .stat-card-icon { color: rgba(255, 255, 255, 0.7); }

.stat-card-icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-card-number {
  font-family: var(--font-headings);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-card-label {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (max-width: 768px) {
  .stats-cards { grid-template-columns: repeat(2, 1fr); }
  .stat-card { transform: rotate(0deg) !important; }
}

@media (max-width: 480px) {
  .stats-cards { grid-template-columns: 1fr; }
  .stat-card-number { font-size: 1.75rem; }
}

/* =============================================================================
   19. PRODUCT METRICS & CTAs
   ============================================================================= */

.product-metric {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-outline:hover {
  background-color: rgba(0, 88, 188, 0.06);
  border-color: var(--color-accent-hover);
  color: var(--color-accent-hover);
}

.product-card .btn {
  margin-top: var(--space-2);
  align-self: flex-start;
}

/* =============================================================================
   20. TESTIMONIALS
   ============================================================================= */

.testimonials-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.testimonial-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin: 0;
  box-shadow: var(--shadow-sm);
}

.testimonial-card p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text);
  font-style: italic;
  margin-bottom: var(--space-3);
}

.testimonial-card footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testimonial-card footer strong {
  font-size: 0.875rem;
  color: var(--color-text);
}

.testimonial-card footer span {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

@media (max-width: 768px) {
  .testimonials-row {
    grid-template-columns: 1fr;
  }
}

/* =============================================================================
   21. CASE STUDY
   ============================================================================= */

.case-study {
  max-width: 900px;
  margin: 0 auto;
}

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.case-study-problem,
.case-study-solution {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.case-study-solution {
  border-left: 3px solid transparent;
  border-image: linear-gradient(to bottom, var(--color-accent), var(--color-violet)) 1;
}

.section--alt .case-study-problem,
.section--alt .case-study-solution {
  background: #FFFFFF;
}

.case-study-problem h4,
.case-study-solution h4 {
  font-family: var(--font-headings);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.case-study-problem p,
.case-study-solution p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-text);
}

.case-study-results {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: linear-gradient(135deg, rgba(0, 88, 188, 0.03) 0%, rgba(0, 112, 235, 0.03) 100%);
  border-radius: var(--radius-lg);
}

.case-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  flex: 1;
}

.case-result-number {
  font-family: var(--font-headings);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.case-result-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  max-width: 160px;
}

@media (max-width: 768px) {
  .case-study-grid {
    grid-template-columns: 1fr;
  }
  .case-study-results {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
}

/* =============================================================================
   22. FAQ
   ============================================================================= */

.section-faq {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0 var(--space-4);
  box-shadow: var(--shadow-sm);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) 0;
  font-family: var(--font-headings);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-muted);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              color 0.2s ease-out;
  flex-shrink: 0;
  margin-left: var(--space-2);
}

.faq-item[open] .faq-question::after {
  content: '\2212';
  color: var(--color-accent);
  transform: rotate(180deg);
}

.faq-item[open] .faq-question {
  color: var(--color-accent);
}

.faq-answer {
  padding-bottom: var(--space-3);
  animation: faq-open 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.faq-answer p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-muted);
}

/* =============================================================================
   23. TECH DETAIL
   ============================================================================= */

.tech-detail {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: var(--space-1);
  line-height: 1.6;
}

/* =============================================================================
   24. UTILITY
   ============================================================================= */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.divider {
  height: 1px;
  background-color: var(--color-border);
  border: none;
  margin: 0;
}

/* Honeypot anti-spam */
.form-hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* =============================================================================
   25. GRADIENT TEXT
   ============================================================================= */

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-violet) 40%, var(--color-warm) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* =============================================================================
   26. GRAIN / NOISE OVERLAY
   ============================================================================= */

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

/* =============================================================================
   27. CTA ARROW ANIMATION
   ============================================================================= */

.btn-arrow {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* =============================================================================
   28. WHATSAPP FLOAT PULSE
   ============================================================================= */

.wa-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.25);
  animation: wa-pulse 2.5s ease-in-out infinite;
  z-index: -1;
}

@keyframes wa-pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.35); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .wa-float::before { animation: none; opacity: 0; }
}

/* =============================================================================
   29. HERO DECORATIVE SHAPES
   ============================================================================= */

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

.hero-deco-circle {
  position: absolute;
  border-radius: 50%;
}

.hero-deco-circle--1 {
  width: 320px;
  height: 320px;
  top: -80px;
  right: -60px;
  background: radial-gradient(circle, rgba(0, 88, 188, 0.04) 0%, transparent 70%);
  animation: deco-float 8s ease-in-out infinite;
}

.hero-deco-circle--2 {
  width: 200px;
  height: 200px;
  bottom: 40px;
  left: -40px;
  background: radial-gradient(circle, rgba(224, 115, 53, 0.04) 0%, transparent 70%);
  animation: deco-float 10s ease-in-out infinite reverse;
}

.hero-deco-ring {
  position: absolute;
  width: 140px;
  height: 140px;
  top: 30%;
  right: 15%;
  border: 1px solid rgba(0, 112, 235, 0.06);
  border-radius: 50%;
  animation: deco-float 12s ease-in-out infinite;
}

@keyframes deco-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-deco-circle,
  .hero-deco-ring {
    animation: none;
  }
}

/* =============================================================================
   30. SCROLL INDICATOR
   ============================================================================= */

.scroll-indicator {
  position: absolute;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  animation: scroll-bounce 2s ease-in-out infinite;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  z-index: 2;
}

.scroll-indicator:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-indicator { animation: none; }
}

/* =============================================================================
   31. HERO BADGE SHIMMER
   ============================================================================= */

.hero-badge {
  position: relative;
  overflow: hidden;
}

.hero-badge::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  animation: badge-shimmer 4s ease-in-out infinite;
}

@keyframes badge-shimmer {
  0%, 100% { left: -100%; }
  50% { left: 150%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-badge::after { animation: none; display: none; }
}