/* ============================================
   ESCALIZE — Landing Page Óticas
   Premium Dark Theme
   ============================================ */

/* ---------- RESET & BASE ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #07070d;
  --bg-secondary: #0d0d15;
  --bg-card: rgba(17, 17, 30, 0.65);
  --bg-card-hover: rgba(25, 25, 45, 0.8);
  --blue-primary: #3b82f6;
  --blue-glow: #2563eb;
  --blue-light: #60a5fa;
  --blue-dark: #1d4ed8;
  --red-primary: #ef4444;
  --red-glow: rgba(239, 68, 68, 0.15);
  --orange-primary: #f59e0b;
  --orange-glow: rgba(245, 158, 11, 0.15);
  --green-primary: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.15);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(59, 130, 246, 0.1);
  --border-hover: rgba(59, 130, 246, 0.3);
  --glass-bg: rgba(15, 15, 25, 0.6);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
}

/* ---------- PARTICLES CANVAS ---------- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---------- NAVBAR ---------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
  background: transparent;
}

#navbar.scrolled {
  background: rgba(7, 7, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.6rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  height: 42px;
  width: auto;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  letter-spacing: 0.02em;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-primary);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.5rem;
  background: var(--blue-primary);
  color: #fff;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.nav-cta:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

/* ---------- HERO ---------- */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {

  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 1;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-logo {
  width: 180px;
  height: auto;
  border-radius: 20px;
  margin: 0 auto 2.5rem;
  box-shadow: 0 0 80px rgba(59, 130, 246, 0.2);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  min-height: 2.5em;
}

.hero-title-static {
  display: block;
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
  margin-bottom: 0.15em;
}

.typing-text {
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cursor {
  display: inline-block;
  animation: blink 0.8s step-end infinite;
  color: var(--blue-primary);
  -webkit-text-fill-color: var(--blue-primary);
  font-weight: 300;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
  line-height: 1.8;
}

.hero-subtitle strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  color: #fff;
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.hero-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(59, 130, 246, 0.35);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
  opacity: 0.5;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--text-secondary);
  border-radius: 3px;
  animation: scrollAnim 1.8s ease-in-out infinite;
}

@keyframes scrollAnim {
  0% {
    transform: translateY(0);
    opacity: 1;
  }

  100% {
    transform: translateY(12px);
    opacity: 0;
  }
}

/* ---------- SECTIONS GENERAL ---------- */
.section {
  padding: 7rem 0;
  position: relative;
}

.section-dark {
  background: var(--bg-secondary);
}

.section-badge {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: rgba(59, 130, 246, 0.1);
  color: var(--blue-light);
  border: 1px solid rgba(59, 130, 246, 0.2);
  margin-bottom: 1.5rem;
}

.badge-danger {
  background: var(--red-glow);
  color: var(--red-primary);
  border-color: rgba(239, 68, 68, 0.2);
}

.badge-warning {
  background: var(--orange-glow);
  color: var(--orange-primary);
  border-color: rgba(245, 158, 11, 0.2);
}

.badge-success {
  background: var(--green-glow);
  color: var(--green-primary);
  border-color: rgba(34, 197, 94, 0.2);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  line-height: 1.8;
  margin-bottom: 3.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-danger {
  color: var(--red-primary);
}

.text-warning {
  color: var(--orange-primary);
}

/* ---------- SITUATION CARDS ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.situation-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
}

.situation-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: 0 12px 40px rgba(59, 130, 246, 0.08);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--blue-primary);
}

.situation-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.situation-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- PROBLEM CARDS ---------- */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.problem-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid rgba(239, 68, 68, 0.1);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  overflow: hidden;
  transition: var(--transition);
}

.problem-card:hover {
  transform: translateY(-4px);
  border-color: rgba(239, 68, 68, 0.25);
}

.problem-glow {
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.08) 0%, transparent 70%);
  pointer-events: none;
  transition: var(--transition);
}

.problem-card:hover .problem-glow {
  opacity: 1.5;
  transform: scale(1.5);
}

.problem-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  color: rgba(239, 68, 68, 0.12);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.problem-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.problem-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- TIMELINE (IMPLICATION) ---------- */
.timeline {
  position: relative;
  padding-left: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--orange-primary), var(--red-primary));
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -3rem;
  top: 0.3rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--orange-primary);
  z-index: 2;
  transition: var(--transition);
}

.timeline-item:last-child .timeline-dot {
  border-color: var(--red-primary);
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.4);
}

.timeline-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: rgba(245, 158, 11, 0.2);
  transform: translateX(6px);
}

.timeline-period {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  background: var(--orange-glow);
  color: var(--orange-primary);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

.timeline-item:last-child .timeline-period {
  background: var(--red-glow);
  color: var(--red-primary);
}

.timeline-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- SOLUTION ---------- */
.section-solution {
  background: var(--bg-primary);
  overflow: hidden;
}

.solution-bg-glow {
  position: absolute;
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.05) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.solution-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-primary), var(--green-primary));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(59, 130, 246, 0.2);
  box-shadow: 0 16px 48px rgba(59, 130, 246, 0.08);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(34, 197, 94, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--blue-light);
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ---------- MÉTODO NÚCLEO ---------- */
.badge-nucleo {
  background: rgba(139, 92, 246, 0.12);
  color: #a78bfa;
  border-color: rgba(139, 92, 246, 0.25);
}

.nucleo-process {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nucleo-step {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}

.nucleo-step-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(59, 130, 246, 0.15));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  min-width: 70px;
  padding-top: 0.5rem;
}

.nucleo-step-content {
  flex: 1;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem 2.5rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.nucleo-step-content:hover {
  border-color: rgba(139, 92, 246, 0.2);
  transform: translateX(6px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.06);
}

.nucleo-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: #a78bfa;
}

.nucleo-step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.nucleo-step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.nucleo-connector {
  display: flex;
  justify-content: flex-start;
  padding-left: 33px;
  height: 40px;
}

.connector-line {
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.3), rgba(59, 130, 246, 0.15));
  border-radius: 2px;
}

@media (max-width: 768px) {
  .nucleo-step {
    flex-direction: column;
    gap: 0.75rem;
  }

  .nucleo-step-number {
    font-size: 2.5rem;
    min-width: auto;
  }

  .nucleo-connector {
    padding-left: 15px;
    height: 30px;
  }
}

/* ---------- STATS ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}

.stat-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.stat-detail {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ---------- TESTIMONIALS ---------- */
.testimonials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.testimonial-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1.1rem;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- CTA ---------- */
.section-cta {
  text-align: center;
  padding: 8rem 0;
  overflow: hidden;
  position: relative;
}

.cta-bg-glow {
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulseGlow 5s ease-in-out infinite;
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  margin-bottom: 1.2rem;
}

.cta-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.15rem 3rem;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
  color: #fff;
  border-radius: 14px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: var(--transition);
  border: 1px solid rgba(59, 130, 246, 0.3);
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
}

.cta-button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 50px rgba(59, 130, 246, 0.4);
}

.pulse-btn {
  animation: pulseShadow 2.5s ease-in-out infinite;
}

@keyframes pulseShadow {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.35);
  }

  50% {
    box-shadow: 0 0 0 15px rgba(59, 130, 246, 0);
  }
}

.cta-note {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ---------- FOOTER ---------- */
#footer {
  padding: 3rem 0;
  border-top: 1px solid var(--glass-border);
  background: var(--bg-secondary);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  height: 36px;
  width: auto;
  border-radius: 6px;
  opacity: 0.7;
}

.footer-text {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---------- ANIMATIONS ---------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.cards-grid .animate-on-scroll:nth-child(2),
.problems-grid .animate-on-scroll:nth-child(2),
.solution-features .animate-on-scroll:nth-child(2),
.stats-grid .animate-on-scroll:nth-child(2),
.testimonials .animate-on-scroll:nth-child(2) {
  transition-delay: 0.1s;
}

.cards-grid .animate-on-scroll:nth-child(3),
.problems-grid .animate-on-scroll:nth-child(3),
.solution-features .animate-on-scroll:nth-child(3),
.stats-grid .animate-on-scroll:nth-child(3) {
  transition-delay: 0.2s;
}

.problems-grid .animate-on-scroll:nth-child(4),
.solution-features .animate-on-scroll:nth-child(4),
.stats-grid .animate-on-scroll:nth-child(4) {
  transition-delay: 0.3s;
}

.solution-features .animate-on-scroll:nth-child(5) {
  transition-delay: 0.4s;
}

.solution-features .animate-on-scroll:nth-child(6) {
  transition-delay: 0.5s;
}

.timeline-item:nth-child(2) .animate-on-scroll {
  transition-delay: 0.15s;
}

.timeline-item:nth-child(3) .animate-on-scroll {
  transition-delay: 0.3s;
}

.timeline-item:nth-child(4) .animate-on-scroll {
  transition-delay: 0.45s;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {

  .cards-grid,
  .solution-features {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .nav-links {
    display: none;
  }
}

@media (max-width: 768px) {

  .cards-grid,
  .problems-grid,
  .solution-features,
  .stats-grid,
  .testimonials {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 5rem 0;
  }

  .hero-logo {
    width: 90px;
    height: 90px;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}