/* ============================================
   SkyCMS — Marketing Site Prototype
   Clean, Modern, Enterprise
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #DBEAFE;
  --color-primary-50: #EFF6FF;

  --color-dark: #0F172A;
  --color-dark-800: #1E293B;
  --color-dark-700: #334155;
  --color-dark-600: #475569;
  --color-gray-500: #64748B;
  --color-gray-400: #94A3B8;
  --color-gray-300: #CBD5E1;
  --color-gray-200: #E2E8F0;
  --color-gray-100: #F1F5F9;
  --color-gray-50: #F8FAFC;

  --color-white: #FFFFFF;
  --color-green: #10B981;
  --color-amber: #F59E0B;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-py: 100px;
  --container-max: 1200px;
  --container-px: 24px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-dark-700);
  background: var(--color-white);
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* --- Typography --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-50);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 17px;
  color: var(--color-gray-500);
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.3);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border: 1.5px solid var(--color-gray-300);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.btn--white:hover {
  background: var(--color-gray-50);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.logo-accent {
  color: var(--color-primary);
}

.logo-text .logo-sub {
  display: block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-gray-500);
  text-transform: uppercase;
  line-height: 1;
  margin-top: 1px;
}

.footer__powered {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-gray-500);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.footer .logo-accent {
  color: var(--color-primary);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-dark-600);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.navbar__links a:hover {
  color: var(--color-primary);
}

.navbar__links a:hover::after {
  transform: scaleX(1);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: 140px;
  padding-bottom: 60px;
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.hero__title--accent {
  color: var(--color-primary);
}

.hero__subtitle {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 22px);
  font-weight: 600;
  color: var(--color-dark-700);
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero__description {
  font-size: 17px;
  color: var(--color-gray-500);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero__cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero__tagline {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-400);
  letter-spacing: 0.02em;
}

/* Dashboard Mockup */
.hero__visual {
  position: relative;
}

.dashboard-mockup {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg);
  transition: transform var(--transition-slow);
}

.dashboard-mockup:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.dashboard-mockup__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}

.dashboard-mockup__dots {
  display: flex;
  gap: 7px;
}

.dashboard-mockup__dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-gray-300);
}

.dashboard-mockup__dots span:first-child { background: #EF4444; }
.dashboard-mockup__dots span:nth-child(2) { background: #F59E0B; }
.dashboard-mockup__dots span:last-child { background: #22C55E; }

.dashboard-mockup__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark-700);
}

.avatar-circle {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
}

.dashboard-mockup__body {
  display: flex;
  min-height: 280px;
}

.dashboard-mockup__sidebar {
  width: 56px;
  background: var(--color-dark);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-item {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-dark-700);
  transition: background var(--transition-fast);
}

.sidebar-item.active {
  background: var(--color-primary);
}

.dashboard-mockup__main {
  flex: 1;
  padding: 20px;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 14px;
}

.stat-card__label {
  font-size: 11px;
  color: var(--color-gray-500);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-card__value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.stat-card__bar {
  height: 4px;
  border-radius: 2px;
  background: var(--color-gray-200);
  overflow: hidden;
}

.stat-card__bar::after {
  content: '';
  display: block;
  height: 100%;
  border-radius: 2px;
  animation: barFill 1.5s ease forwards;
}

.bar--blue::after { background: var(--color-primary); width: 75%; }
.bar--green::after { background: var(--color-green); width: 60%; }
.bar--amber::after { background: var(--color-amber); width: 45%; }

@keyframes barFill {
  from { width: 0; }
}

.chart-area {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
}

.chart-svg {
  width: 100%;
  height: auto;
}

.table-placeholder {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.table-row {
  height: 12px;
  background: var(--color-gray-100);
  border-radius: 4px;
}

.table-row:nth-child(2) { width: 85%; }
.table-row:nth-child(3) { width: 70%; }

/* ============================================
   SOCIAL PROOF
   ============================================ */
.social-proof {
  padding: 48px 0;
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
  background: var(--color-white);
}

.social-proof__label {
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-400);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.social-proof__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.logo-placeholder {
  width: 140px;
  height: 48px;
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--color-gray-300);
}

.logo-placeholder span {
  font-size: 11px;
  color: var(--color-gray-400);
  font-weight: 500;
}

.social-proof__note {
  text-align: center;
  font-size: 13px;
  color: var(--color-gray-400);
}

/* ============================================
   BENEFITS
   ============================================ */
.benefits {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.benefit-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(20px);
}

.benefit-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.benefit-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.benefit-card.visible:hover {
  transform: translateY(-2px);
}

.benefit-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.benefit-card__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.benefit-card__text {
  font-size: 15px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  padding: var(--section-py) 0;
  background: var(--color-gray-50);
}

.steps {
  max-width: 720px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: 32px;
  position: relative;
  padding-bottom: 48px;
  opacity: 0;
  transform: translateY(20px);
}

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

.step:last-child {
  padding-bottom: 0;
}

.step__number {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  min-width: 70px;
  flex-shrink: 0;
}

.step__content {
  flex: 1;
}

.step__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.step__text {
  font-size: 15px;
  color: var(--color-gray-500);
  line-height: 1.7;
}

.step__line {
  position: absolute;
  left: 35px;
  top: 50px;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.how-it-works__cta {
  text-align: center;
  margin-top: 56px;
}

/* ============================================
   IMPACT
   ============================================ */
.impact {
  padding: var(--section-py) 0;
  background: var(--color-dark);
}

.impact .section-label {
  background: rgba(37, 99, 235, 0.15);
  color: #93C5FD;
}

.impact .section-title {
  color: var(--color-white);
}

.impact__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.impact-card {
  text-align: center;
  padding: 32px 20px;
  opacity: 0;
  transform: translateY(20px);
}

.impact-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.impact-card__value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
}

.impact-card__bar {
  height: 4px;
  background: var(--color-dark-700);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.impact-card__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  width: 0;
  transition: width 1.2s ease;
}

.impact-card__fill.animate {
  width: var(--target-width);
}

.impact-card__label {
  font-size: 14px;
  color: var(--color-gray-400);
  line-height: 1.5;
}

.impact__disclaimer {
  text-align: center;
  font-size: 13px;
  color: var(--color-dark-600);
  margin-top: 48px;
  font-style: italic;
}

/* ============================================
   FEATURES / STUDENT LIFE CYCLE
   ============================================ */
.features {
  padding: var(--section-py) 0;
  background: var(--color-white);
}

.lifecycle__track {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.lifecycle__line {
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.lifecycle__stage {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  position: relative;
  padding-bottom: 32px;
  opacity: 0;
  transform: translateX(-20px);
}

.lifecycle__stage.visible {
  opacity: 1;
  transform: translateX(0);
}

.lifecycle__stage:last-child {
  padding-bottom: 0;
}

.lifecycle__dot {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 4px solid var(--color-primary-light);
  position: relative;
  z-index: 2;
}

.lifecycle__card {
  flex: 1;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-base);
}

.lifecycle__card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.lifecycle__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}

.lifecycle__card h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.lifecycle__card p {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ============================================
   FINAL CTA
   ============================================ */
.final-cta {
  padding: var(--section-py) 0;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta::after {
  content: '';
  position: absolute;
  bottom: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,0,0,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta__inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.final-cta__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.final-cta__text {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   FAQ
   ============================================ */
.faq {
  padding: var(--section-py) 0;
  background: var(--color-gray-50);
}

.faq__list {
  max-width: 740px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-gray-200);
}

.faq__item:first-child {
  border-top: 1px solid var(--color-gray-200);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  text-align: left;
  transition: color var(--transition-fast);
}

.faq__question:hover {
  color: var(--color-primary);
}

.faq__chevron {
  flex-shrink: 0;
  color: var(--color-gray-400);
  transition: transform var(--transition-base);
}

.faq__item.open .faq__chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq__item.open .faq__answer {
  max-height: 300px;
}

.faq__answer p {
  padding-bottom: 22px;
  font-size: 15px;
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 64px 0 0;
  background: var(--color-dark);
  color: var(--color-gray-400);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-dark-700);
}

.footer .logo-text {
  color: var(--color-white);
  font-size: 18px;
}

.footer__tagline {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-top: 12px;
  margin-bottom: 24px;
}

.footer__address p {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 12px;
  color: var(--color-gray-500);
}

.footer__col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col a {
  font-size: 14px;
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer__col a:hover {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.footer__bottom p {
  font-size: 13px;
  color: var(--color-dark-600);
}

.footer__legal {
  display: flex;
  gap: 24px;
}

.footer__legal a {
  font-size: 13px;
  color: var(--color-dark-600);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-gray-400);
}

/* ============================================
   ANIMATIONS
   ============================================ */
[data-aos] {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Stagger delays for grid items */
.benefits__grid .benefit-card:nth-child(2) { transition-delay: 0.1s; }
.benefits__grid .benefit-card:nth-child(3) { transition-delay: 0.2s; }
.benefits__grid .benefit-card:nth-child(4) { transition-delay: 0.3s; }

.impact__grid .impact-card:nth-child(2) { transition-delay: 0.1s; }
.impact__grid .impact-card:nth-child(3) { transition-delay: 0.2s; }
.impact__grid .impact-card:nth-child(4) { transition-delay: 0.3s; }

.steps .step:nth-child(2) { transition-delay: 0.1s; }
.steps .step:nth-child(3) { transition-delay: 0.2s; }
.steps .step:nth-child(4) { transition-delay: 0.3s; }

.lifecycle__stage:nth-child(2) { transition-delay: 0.05s; }
.lifecycle__stage:nth-child(3) { transition-delay: 0.1s; }
.lifecycle__stage:nth-child(4) { transition-delay: 0.15s; }
.lifecycle__stage:nth-child(5) { transition-delay: 0.2s; }
.lifecycle__stage:nth-child(6) { transition-delay: 0.25s; }
.lifecycle__stage:nth-child(7) { transition-delay: 0.3s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__visual {
    max-width: 600px;
    margin: 0 auto;
  }

  .dashboard-mockup {
    transform: none;
  }

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-py: 72px;
  }

  .navbar__links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-lg);
  }

  .navbar__links.open {
    display: flex;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__actions .btn {
    display: none;
  }

  .hero {
    padding-top: 110px;
    text-align: center;
  }

  .hero__description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta-group {
    justify-content: center;
  }

  .benefits__grid {
    grid-template-columns: 1fr;
  }

  .step {
    gap: 20px;
  }

  .step__number {
    font-size: 32px;
    min-width: 50px;
  }

  .step__line {
    left: 25px;
  }

  .impact__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .social-proof__logos {
    gap: 24px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stat-cards {
    grid-template-columns: 1fr;
  }

  .btn--lg {
    width: 100%;
  }

  .hero__cta-group {
    flex-direction: column;
  }
}