:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-primary: #0c3d6e;
  --color-primary-light: #155a9e;
  --color-accent: #0369a1;
  --color-accent-soft: #e8f2fa;
  --color-border: #dde3ec;
  --color-shadow: rgba(12, 61, 110, 0.06);
  --color-shadow-md: rgba(12, 61, 110, 0.1);
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --max-width: 1140px;
  --radius: 10px;
  --radius-lg: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0;
  gap: 2rem;
  min-height: 84px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.logo-icon {
  display: block;
  width: auto;
  height: 62px;
  flex-shrink: 0;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  min-width: 0;
}

.logo-name {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.logo-prime {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #0b2f57;
}

.logo-consul {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.38em;
  color: #0b2f57;
  margin-top: 0.1rem;
}

.logo-tagline {
  font-size: 0.78rem;
  font-weight: 500;
  color: #4b5c6e;
  letter-spacing: 0.01em;
  line-height: 1.35;
  padding-top: 0.35rem;
  margin-top: 0.15rem;
  border-top: 1px solid #c5d0dc;
  max-width: 280px;
}

.logo-icon-footer {
  height: 50px;
}

.logo-icon-footer + .logo-text .logo-prime {
  font-size: 1.25rem;
}

.logo-icon-footer + .logo-text .logo-consul {
  font-size: 0.9rem;
  letter-spacing: 0.32em;
}

.logo-icon-footer + .logo-text .logo-tagline {
  font-size: 0.7rem;
  max-width: 240px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.2s;
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: 0.3s;
}

/* Hero */
.hero {
  padding: 4.5rem 0 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 40%, var(--color-accent-soft) 40%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 12px,
      rgba(12, 61, 110, 0.03) 12px,
      rgba(12, 61, 110, 0.03) 13px
    );
  pointer-events: none;
}

.hero-inner {
  padding-bottom: 4rem;
  position: relative;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1px solid rgba(12, 61, 110, 0.1);
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-primary);
}

.hero p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.trust-bar {
  background: var(--color-accent-soft);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.trust-bar-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem 3rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.trust-item svg {
  flex-shrink: 0;
  opacity: 0.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-light);
  color: #fff;
  box-shadow: 0 4px 14px var(--color-shadow-md);
}

.btn-outline {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

/* Sections */
section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.65rem;
}

.section-header h2 {
  font-size: clamp(1.65rem, 3.5vw, 2.1rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  font-size: 1rem;
}

/* Highlights */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.highlight-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 1px 4px var(--color-shadow);
  border-top: 3px solid var(--color-primary);
}

.highlight-card.ai-card {
  border-top-color: var(--color-accent);
}

.highlight-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.highlight-card h3 .card-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent-soft);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.highlight-card ul {
  list-style: none;
}

.highlight-card li {
  padding: 0.45rem 0;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  padding-left: 1.4rem;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.highlight-card li:last-child {
  border-bottom: none;
}

.highlight-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: 0 1px 4px var(--color-shadow);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary);
}

.about-card.vision-card::before {
  background: var(--color-accent);
}

.about-card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.about-card p {
  color: var(--color-text-muted);
  font-size: 0.975rem;
  line-height: 1.75;
}

/* Services */
.services-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 2.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 4px;
  width: fit-content;
  margin-inline: auto;
}

.tab-btn {
  padding: 0.6rem 1.75rem;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

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

.tab-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem 2rem 2.25rem;
  border-left: 4px solid var(--color-primary);
  transition: box-shadow 0.2s;
}

.service-card:hover {
  box-shadow: 0 4px 20px var(--color-shadow-md);
}

.service-card-header {
  margin-bottom: 0.75rem;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.service-card .service-subtitle {
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.service-card > p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.detail-block h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.detail-block ul {
  list-style: none;
}

.detail-block li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 0.35rem 0 0.35rem 1.25rem;
  position: relative;
  line-height: 1.5;
}

.detail-block li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.solution-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin-bottom: 0.65rem;
}

.solution-item:last-child {
  margin-bottom: 0;
}

.solution-item strong {
  display: block;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.solution-item span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.contact-info > p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.contact-icon {
  width: 42px;
  height: 42px;
  background: var(--color-accent-soft);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.contact-item h4 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.contact-item p,
.contact-item a {
  color: var(--color-text);
  font-size: 0.925rem;
  line-height: 1.5;
}

.contact-form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.contact-form-wrapper h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 7px;
  font-family: inherit;
  font-size: 0.9rem;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.12);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 0.25rem;
}

.form-message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 7px;
  font-size: 0.875rem;
  text-align: center;
  display: none;
}

.form-message.success {
  display: block;
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-message.error {
  display: block;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Footer */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.footer-brand {
  display: flex;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

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

.footer-bottom {
  padding-top: 1.25rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .highlights-grid,
  .about-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .header-right .nav-cta {
    display: none;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
    gap: 0.5rem;
    box-shadow: 0 4px 12px var(--color-shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .header-inner {
    position: relative;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero-inner {
    padding-bottom: 2.5rem;
  }

  .header-inner {
    min-height: 72px;
    padding: 0.5rem 0;
  }

  .logo-icon {
    height: 48px;
  }

  .logo-prime {
    font-size: 1.15rem;
  }

  .logo-consul {
    font-size: 0.82rem;
    letter-spacing: 0.28em;
  }

  .logo-tagline {
    font-size: 0.68rem;
    max-width: 210px;
  }

  section {
    padding: 3.5rem 0;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .trust-bar-inner {
    gap: 1rem 1.5rem;
  }
}