/* =============================================
   GenAI Edge – 24 Hrs to AI Fluency
   Stylesheet | styles.css
   ============================================= */

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

/* ---- Dark theme (default) ---- */
:root,
[data-theme="dark"] {
  --color-bg:           #070b13;
  --color-bg-card:      #0e1420;
  --color-bg-card-alt:  #111827;
  --color-accent:       #f0a500;
  --color-accent-dim:   rgba(240, 165, 0, 0.15);
  --color-accent-glow:  rgba(240, 165, 0, 0.35);
  --color-blue:         #3b82f6;
  --color-blue-dim:     rgba(59, 130, 246, 0.15);
  --color-text-primary: #f1f5f9;
  --color-text-muted:   #8b98b1;
  --color-text-faint:   #4b5563;
  --color-border:       rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(240, 165, 0, 0.4);
  --color-nav-bg:       rgba(7, 11, 19, 0.95);
  --color-cta-bg:       linear-gradient(135deg, #0e1420 0%, #0a0d16 100%);
  --color-footer-brand: #f1f5f9;
  --shadow-card:        0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-hover:       0 12px 48px rgba(0, 0, 0, 0.7);
  --hero-glow-left:     rgba(59, 130, 246, 0.4);
  --hero-glow-right:    rgba(240, 165, 0, 0.3);
  --grid-line:          rgba(255, 255, 255, 0.025);
}

/* ---- Light theme ---- */
[data-theme="light"] {
  --color-bg:           #f5f7fa;
  --color-bg-card:      #ffffff;
  --color-bg-card-alt:  #f0f4f8;
  --color-accent:       #d97706;
  --color-accent-dim:   rgba(217, 119, 6, 0.1);
  --color-accent-glow:  rgba(217, 119, 6, 0.3);
  --color-blue:         #2563eb;
  --color-blue-dim:     rgba(37, 99, 235, 0.1);
  --color-text-primary: #0f172a;
  --color-text-muted:   #475569;
  --color-text-faint:   #94a3b8;
  --color-border:       rgba(0, 0, 0, 0.08);
  --color-border-hover: rgba(217, 119, 6, 0.4);
  --color-nav-bg:       rgba(245, 247, 250, 0.95);
  --color-cta-bg:       linear-gradient(135deg, #ffffff 0%, #f0f4f8 100%);
  --color-footer-brand: #0f172a;
  --shadow-card:        0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-hover:       0 12px 48px rgba(0, 0, 0, 0.15);
  --hero-glow-left:     rgba(59, 130, 246, 0.15);
  --hero-glow-right:    rgba(217, 119, 6, 0.15);
  --grid-line:          rgba(0, 0, 0, 0.04);
}

/* ---- Shared tokens (layout, typography) ---- */
:root {
  --font-main:    'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
  --radius-card:  16px;
  --radius-sm:    8px;
  --transition:   0.3s ease;
}

/* Smooth theme transition on all elements */
*, *::before, *::after {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: var(--color-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
}

.nav-logo {
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

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

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.nav-cta {
  background: var(--color-accent) !important;
  color: #070b13 !important;
  padding: 9px 22px;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
}

.nav-cta:hover {
  background: #fbbf24 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--color-accent-glow);
}

/* ---- Theme toggle button ---- */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform 0.2s ease;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-accent-dim);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: rotate(20deg);
}

/* Show/hide correct icon based on theme */
[data-theme="dark"]  .theme-icon--moon,
[data-theme="light"] .theme-icon--sun  { display: none; }
[data-theme="dark"]  .theme-icon--sun,
[data-theme="light"] .theme-icon--moon { display: block; }

/* Default (dark) when no attribute set */
:root:not([data-theme="light"]) .theme-icon--moon { display: none; }
:root:not([data-theme="light"]) .theme-icon--sun  { display: block; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 100%);
}

.hero-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  opacity: 0.35;
}

.hero-glow--left {
  background: var(--hero-glow-left);
  top: -100px;
  left: -150px;
}

.hero-glow--right {
  background: var(--hero-glow-right);
  bottom: -100px;
  right: -150px;
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 165, 0, 0.1);
  border: 1px solid rgba(240, 165, 0, 0.3);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: 24px;
}

.hero-title-highlight {
  display: block;
  background: linear-gradient(135deg, #f0a500 0%, #fbbf24 50%, #f97316 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 640px;
  margin: 0 auto 44px;
}

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

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 44px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #070b13;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: 50px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--color-accent-glow);
}

.btn-primary--large {
  padding: 16px 40px;
  font-size: 1rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 28px;
  border-radius: 50px;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.btn-secondary:hover {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  transform: translateY(-2px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 1.5px solid var(--color-text-faint);
  border-bottom: 1.5px solid var(--color-text-faint);
  transform: rotate(45deg);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 1; }
  50% { transform: rotate(45deg) translateY(5px); opacity: 0.5; }
}

/* =============================================
   SECTION INTRO
   ============================================= */
.section-intro {
  padding: 80px 24px 0;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* =============================================
   COURSES SECTION
   ============================================= */
.courses-section {
  padding: 20px 0 36px;
}

.courses-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.course-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.course-card-content {
  padding: 28px;
}

.course-audience {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.course-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.course-description {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.course-link {
  width: fit-content;
}

/* =============================================
   GALLERY SECTION
   ============================================= */
.gallery-section {
  padding: 60px 0 100px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

/* =============================================
   USE CASE CARDS
   ============================================= */
.use-case-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
  will-change: transform;
}

.use-case-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-hover);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(240, 165, 0, 0.15);
}

.use-case-card--bonus {
  border-color: rgba(240, 165, 0, 0.25);
  background: linear-gradient(135deg, #0e1420 0%, #120d05 100%);
}

.use-case-card--bonus:hover {
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(240, 165, 0, 0.15);
}

/* Card image */
.card-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-card-alt);
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.use-case-card:hover .card-image-wrap img {
  transform: scale(1.05);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(14, 20, 32, 0.7) 100%
  );
  pointer-events: none;
}

.card-session-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
}

.card-session-badge--bonus {
  background: rgba(240, 165, 0, 0.15);
  border-color: rgba(240, 165, 0, 0.4);
  color: var(--color-accent);
}

/* Card body */
.card-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.card-brief {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  flex: 1;
}

.card-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tool-tag {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-blue);
  background: var(--color-blue-dim);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 3px 8px;
  border-radius: 50px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.use-case-card--bonus .tool-tag {
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border-color: rgba(240, 165, 0, 0.2);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.card-hours {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-faint);
}

.card-arrow {
  font-size: 1rem;
  color: var(--color-text-faint);
  transition: color var(--transition), transform var(--transition);
}

.use-case-card:hover .card-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
  padding: 0 0 100px;
}

.cta-card {
  position: relative;
  background: var(--color-cta-bg);
  border: 1px solid rgba(217, 119, 6, 0.2);
  border-radius: 24px;
  overflow: hidden;
  padding: 80px 40px;
  text-align: center;
}

.cta-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(240, 165, 0, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.cta-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.cta-content .section-tag {
  margin-bottom: 20px;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.footer-brand .logo-text {
  font-size: 1.2rem;
  margin-bottom: 10px;
  display: block;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: 280px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 28px;
  align-items: center;
  flex-wrap: wrap;
}

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

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-text-faint);
  text-align: center;
}

/* =============================================
   CARD ENTRANCE ANIMATION
   ============================================= */
.use-case-card {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease,
    border-color var(--transition),
    box-shadow var(--transition);
}

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

.use-case-card:hover {
  transform: translateY(-6px) !important;
}

/* =============================================
   RESPONSIVE — Tablet (≤ 1024px)
   ============================================= */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

/* =============================================
   RESPONSIVE — Small Tablet (≤ 768px)
   ============================================= */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background: var(--color-nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 32px;
    gap: 28px;
    transition: right 0.4s ease;
    z-index: 999;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links a {
    font-size: 1rem;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .hamburger {
    display: flex;
    z-index: 1001;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

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

  .hero {
    padding: 100px 20px 70px;
  }

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

  .section-intro {
    padding: 60px 20px 0;
  }

  .gallery-section {
    padding: 48px 0 80px;
  }

  .cta-card {
    padding: 56px 24px;
  }
}

/* =============================================
   RESPONSIVE — Mobile (≤ 480px)
   ============================================= */
@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .card-body {
    padding: 14px;
  }

  .card-title {
    font-size: 0.85rem;
  }

  .card-brief {
    font-size: 0.75rem;
  }

  .tool-tag {
    font-size: 0.6rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .course-link {
    width: 100%;
  }

  .hero-badge {
    font-size: 0.7rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .footer-top {
    flex-direction: column;
    gap: 24px;
  }
}

/* =============================================
   RESPONSIVE — Very Small (≤ 360px)
   ============================================= */
@media (max-width: 360px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   SCROLL FADE-IN UTILITY
   ============================================= */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}