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

:root {
  --primary: #1565C0;
  --primary-light: #1E88E5;
  --primary-dark: #0D47A1;
  --secondary: #2E7D32;
  --secondary-light: #43A047;
  --tertiary: #FF8F00;
  --tertiary-light: #FFA726;
  --bg: #FAFAFA;
  --surface: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #5A5A5A;
  --text-light: #FFFFFF;
  --border: #E0E0E0;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

img {
  max-width: 100%;
  height: auto;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 0 24px;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

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

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(165deg, #E3F2FD 0%, var(--bg) 50%, #E8F5E9 100%);
}

.hero h1 {
  margin-bottom: 20px;
  color: var(--text);
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: var(--text-light);
}

.btn-primary:hover {
  background: var(--primary-light);
  color: var(--text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--text-light);
  transform: translateY(-2px);
}

/* ===== Product Section ===== */
.product-section {
  background: var(--surface);
}

.product-header {
  text-align: center;
  margin-bottom: 56px;
}

.product-header .badge {
  display: inline-block;
  background: #E3F2FD;
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 12px auto 0;
  font-size: 1.1rem;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-icon.blue { background: #E3F2FD; }
.feature-icon.green { background: #E8F5E9; }
.feature-icon.amber { background: #FFF3E0; }

.feature-card h3 {
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* ===== About / Company Section ===== */
.about-section {
  background: var(--bg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about-values {
  list-style: none;
  margin-top: 24px;
}

.about-values li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.about-values li .check {
  color: var(--secondary);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.about-visual {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius);
  padding: 48px;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 320px;
}

.about-visual h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.about-visual p {
  opacity: 0.9;
  line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--text-light);
  text-align: center;
  padding: 64px 0;
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section p {
  opacity: 0.9;
  margin-bottom: 32px;
  font-size: 1.1rem;
}

.cta-section .btn-primary {
  background: var(--text-light);
  color: var(--primary);
}

.cta-section .btn-primary:hover {
  background: #F5F5F5;
  color: var(--primary-dark);
}

/* ===== Footer ===== */
.footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer h4 {
  color: var(--text-light);
  margin-bottom: 16px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 10px;
}

.footer ul a {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.footer ul a:hover {
  color: var(--text-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== Page Header (for subpages) ===== */
.page-header {
  padding: 120px 0 48px;
  background: linear-gradient(165deg, #E3F2FD 0%, var(--bg) 100%);
  text-align: center;
}

.page-header p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 1.1rem;
}

/* ===== Content Page ===== */
.content-page {
  background: var(--surface);
  padding: 64px 0;
}

.content-page .container {
  max-width: 800px;
}

.content-page h2 {
  margin: 40px 0 16px;
  font-size: 1.5rem;
}

.content-page h2:first-child {
  margin-top: 0;
}

.content-page p,
.content-page li {
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.7;
}

.content-page ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

/* ===== Support Page ===== */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.support-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.support-card .icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.support-card h3 {
  margin-bottom: 8px;
}

.support-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.support-card a {
  display: inline-block;
  margin-top: 12px;
  font-weight: 600;
}

.faq-section h2 {
  text-align: center;
  margin-bottom: 32px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
}

.faq-question:hover {
  background: rgba(0,0,0,0.02);
}

.faq-question .arrow {
  transition: transform var(--transition);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  section { padding: 56px 0; }

  .navbar-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .navbar-links.active {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

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

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

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

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

  .hero {
    padding: 110px 0 56px;
  }

  .hero p {
    font-size: 1.05rem;
  }
}