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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: #202124;
  line-height: 1.6;
  background: linear-gradient(180deg, #ffffff 0%, #f0f6ff 40%, #e8f0fe 100%);
  min-height: 100vh;
}

/* === Typography === */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: #1a1a2e;
}

h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 0.75rem;
}

p {
  color: #5f6368;
  font-size: 1.05rem;
}

/* === Layout === */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: #1a73e8;
  color: #fff;
  box-shadow: 0 1px 3px rgba(26, 115, 232, 0.3);
}

.btn-primary:hover {
  background: #1557b0;
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.4);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: #1a73e8;
  border: 2px solid #1a73e8;
}

.btn-outline:hover {
  background: #1a73e8;
  color: #fff;
  transform: translateY(-1px);
}

/* === Hero === */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero h1 {
  max-width: 700px;
  margin: 0 auto 1.25rem;
}

.hero .subtitle {
  font-size: 1.15rem;
  color: #5f6368;
  max-width: 560px;
  margin: 0 auto 1rem;
}

.hero .accent-text {
  font-size: 1.05rem;
  color: #1a73e8;
  font-weight: 500;
  margin-bottom: 2rem;
}

/* === Value Section === */
.value-section {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
}

.value-section h2 {
  text-align: center;
  margin-bottom: 2.5rem;
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.value-card {
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
}

.value-card h3 {
  margin-bottom: 1rem;
  color: #1a73e8;
}

.value-card ul {
  list-style: none;
  padding: 0;
}

.value-card ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: #5f6368;
  font-size: 0.95rem;
}

.value-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.pain-card ul li::before {
  background: #ea4335;
}

.solution-card ul li::before {
  background: #1a73e8;
}

.value-summary {
  text-align: center;
  margin-top: 2rem;
  font-size: 1.05rem;
  color: #202124;
  font-weight: 500;
}

/* === Case Studies === */
.case-section {
  padding: 4rem 0;
}

.case-card {
  background: #fff;
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.case-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #1a73e8;
  background: #e8f0fe;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.case-card > h2 {
  margin-bottom: 0.5rem;
}

.case-task {
  color: #5f6368;
  margin-bottom: 2rem;
  font-size: 1rem;
}

.case-task strong {
  color: #202124;
}

.recommendation {
  margin-bottom: 1.5rem;
}

.recommendation h3 {
  font-size: 1.05rem;
  color: #202124;
  margin-bottom: 0.5rem;
}

.recommendation ul {
  list-style: none;
  padding: 0;
}

.recommendation ul li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.4rem;
  color: #5f6368;
  font-size: 0.95rem;
}

.recommendation ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #1a73e8;
}

.recommendations-group {
  margin-bottom: 2rem;
}

.recommendations-group > h3 {
  font-size: 1.1rem;
  color: #1a73e8;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e8f0fe;
}

.ml-note {
  font-size: 0.9rem;
  color: #5f6368;
  font-style: italic;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #f0f0f0;
}

.dashboard-preview {
  margin-top: 2rem;
  text-align: center;
}

.dashboard-preview img {
  width: 100%;
  max-width: 800px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.dashboard-preview .caption {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: #1a73e8;
  font-weight: 500;
}

/* === Contact Section === */
.contact-section {
  text-align: center;
  padding: 5rem 0;
}

.contact-section h2 {
  margin-bottom: 0.75rem;
}

.contact-section > .container > p {
  margin-bottom: 2.5rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #e8f0fe;
  color: #1a73e8;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.step-text {
  font-size: 0.9rem;
  color: #5f6368;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: #5f6368;
  background: #fff;
  border: 1px solid #dadce0;
  transition: all 0.2s ease;
}

.contact-link:hover {
  border-color: #1a73e8;
  color: #1a73e8;
  box-shadow: 0 1px 4px rgba(26, 115, 232, 0.15);
}

/* === Footer === */
.footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.85rem;
  color: #9aa0a6;
  border-top: 1px solid #e8eaed;
}

/* === Responsive === */
@media (max-width: 768px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.4rem;
  }

  section {
    padding: 3rem 0;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  .value-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .case-card {
    padding: 1.5rem;
  }

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

  .contact-links {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .hero .subtitle {
    font-size: 1rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }

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