:root {
  --color-primary: #1E3A8A;
  --color-secondary: #3B82F6;
  --color-accent: #F59E0B;
  --color-text: #374151;
  --color-heading: #111827;
  --color-bg: #FFFFFF;
  --color-soft: #F8FAFC;
  --color-border: #E5E7EB;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --container: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

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

.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(100% - 2rem, 760px);
  margin: 0 auto;
}

.center {
  text-align: center;
}

.section {
  padding: 5rem 0;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

h1, h2, h3 {
  font-family: "Poppins", sans-serif;
  color: var(--color-heading);
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

p {
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #F59E0B, #F97316);
  color: white;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  background: white;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.text-link {
  font-weight: 700;
  color: var(--color-primary);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  gap: 1rem;
}

.logo {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  font-weight: 600;
  color: #374151;
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: var(--color-secondary);
  transition: width 0.25s ease;
}

.site-nav a:hover::after {
  width: 100%;
}
.site-nav a:hover {
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
}

.hero {
   padding: 6rem 0 3rem;
   background:
    radial-gradient(circle at top left, rgba(59, 130, 246, 0.14), transparent 40%),
    radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.12), transparent 35%),
    radial-gradient(circle at center, rgba(59, 130, 246, 0.05), transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero-copy {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-copy h1 {
  letter-spacing: -0.03em;
}

.hero-copy p {
  margin-bottom: 1.5rem;
  font-size: 1.12rem;
  color: #4b5563;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.visual-card,
.placeholder,
.card,
.lead-box,
.benefit-item {
  border-radius: var(--radius-lg);
}

.visual-card {
  background: white;
  padding: 1rem;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.10);
  border: 1px solid rgba(59, 130, 246, 0.10);
}

.placeholder {
  min-height: 340px;
  display: grid;
  place-items: center;
  text-align: center;
  color: #6b7280;
  background:
    linear-gradient(135deg, rgba(30, 58, 138, 0.06) 0%, rgba(59, 130, 246, 0.08) 100%);
  border: 1px dashed rgba(59, 130, 246, 0.25);
  padding: 2rem;
}

.section-heading {
  margin-bottom: 2rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  padding: 2rem;
  background: white;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.10);
}

.card .btn {
  margin-top: 1rem;
}

.benefits {
  background: var(--color-soft);
}

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

.benefit-item {
  background: white;
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.4rem;
  font-weight: 600;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: center;
}

.about-copy p {
  margin-bottom: 1.5rem;
}

.lead-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.lead-form {
  display: grid;
  gap: 1rem;
}

.lead-form input {
  width: 100%;
  min-height: 52px;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  padding: 0 1rem;
  font: inherit;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  background: white;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (max-width: 900px) {
  .site-nav,
  .header-inner .btn {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero-grid,
  .about-grid,
  .lead-box,
  .cards-grid,
  .benefits-grid,
  .footer-inner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .section {
    padding: 4rem 0;
  }

  .placeholder {
    min-height: 260px;
  }
}

.hero-visual {
  position: relative;
}

.hero-dashboard {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dashboard-card {
  border-radius: 24px;
  background: white;
  border: 1px solid rgba(59, 130, 246, 0.12);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.10);
}

.main-card {
  width: 100%;
  max-width: 440px;
  padding: 2rem;
  background:
    linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(248,250,252,1) 100%);
}

.dashboard-label {
  display: inline-block;
  margin-bottom: 0.9rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.10);
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
}

.main-card h3 {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}

.main-card p {
  color: #4b5563;
  margin-bottom: 1.5rem;
}

.mini-bars {
  display: grid;
  gap: 0.8rem;
}

.mini-bars span {
  display: block;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, #dbeafe, #93c5fd);
}

.mini-bars span:nth-child(1) { width: 92%; }
.mini-bars span:nth-child(2) { width: 76%; }
.mini-bars span:nth-child(3) { width: 88%; }
.mini-bars span:nth-child(4) { width: 64%; }

.floating-card {
  position: absolute;
  padding: 1rem 1.1rem;
  min-width: 150px;
  background: white;
}

.top-card {
  top: 30px;
  right: 10px;
}

.bottom-card {
  bottom: 25px;
  left: 0;
}

.floating-tag {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.floating-card strong {
  display: block;
  color: var(--color-heading);
  font-family: "Poppins", sans-serif;
}

@media (max-width: 900px) {
  .hero-dashboard {
    min-height: auto;
    padding-top: 1rem;
  }

  .top-card,
  .bottom-card {
    position: static;
    margin-top: 1rem;
  }

  .hero-dashboard {
    display: grid;
    gap: 1rem;
  }

  .main-card {
    max-width: 100%;
  }
}

.floating-card {
  animation: float 6s ease-in-out infinite;
}

.top-card {
  animation-delay: 0s;
}

.bottom-card {
  animation-delay: 1.5s;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

.tools-strip {
  padding: 1.5rem 0 0;
  background: transparent;
}

.tools-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.2rem 1.4rem;
  border: 1px solid rgba(59, 130, 246, 0.10);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.tools-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.tool-chip {
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(59, 130, 246, 0.12);
  color: #374151;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

@media (max-width: 900px) {
  .tools-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .tools-list {
    justify-content: flex-start;
  }
}

.hero-card {
  padding: 2rem;
  border-radius: 24px;
  background: white;
  border: 1px solid rgba(59,130,246,0.12);
  box-shadow: 0 20px 60px rgba(15,23,42,0.10);
  max-width: 420px;
}

.hero-card h3 {
  font-size: 1.8rem;
  margin-bottom: .5rem;
}

.hero-card p {
  margin-bottom: 1.2rem;
  color: #4b5563;
}

.hero-bars {
  display: grid;
  gap: .6rem;
}

.hero-bars span {
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg,#dbeafe,#93c5fd);
}

.hero-bars span:nth-child(1){width:90%}
.hero-bars span:nth-child(2){width:75%}
.hero-bars span:nth-child(3){width:85%}
.hero-bars span:nth-child(4){width:60%}

.courses-preview {
  background: #f8fafc;
}

.courses-grid-premium {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.course-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15,23,42,0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(15,23,42,0.10);
}

.course-card h3 {
  font-size: 1.35rem;
}

.course-card p {
  font-size: 0.98rem;
}

.course-visual {
  height: 160px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  color:white;
  font-size:1.2rem;
}

.course-visual.excel {
  background: linear-gradient(135deg,#3b82f6,#60a5fa);
}

.course-visual.intermediate {
  background: linear-gradient(135deg,#2563eb,#1e3a8a);
}

.course-visual.powerbi {
  background: linear-gradient(135deg,#f59e0b,#f97316);
}

.course-content {
  padding: 1.5rem;
}

.course-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.course-content h3 {
  margin-top: 0.5rem;
}

.course-meta {
  display: flex;
  gap: 1rem;
  margin: 1rem 0 1.2rem 0;
  font-size: 0.9rem;
  color: #6b7280;
}

.course-meta span {
  background: #f1f5f9;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

@media (max-width: 900px) {

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

}

.course-visual img {
  width: 56px;
  height: auto;
}

.course-visual img {
  width: 56px;
  height: auto;
}

.footer-bottom {
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.9rem;
  color: #6b7280;
  border-top: 1px solid #e5e7eb;
  margin-top: 2rem;
}

.footer-bottom strong {
  color: #1e3a8a;
  font-weight: 600;
}

.footer-bottom a {
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}