:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-text: #1b2430;
  --color-text-muted: #5a6472;
  --color-primary: #0f3d5c;
  --color-primary-dark: #0a2c42;
  --color-accent: #d97a30;
  --color-border: #e2e5ea;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

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

h1, h2, h3 {
  color: var(--color-primary-dark);
  line-height: 1.25;
}

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

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 12px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  text-decoration: none;
}

.brand span {
  color: var(--color-accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
}

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

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  margin-bottom: 16px;
}

.hero-sub {
  color: #dbe6ee;
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: #c2691f;
}

/* Services */
.services {
  padding: 72px 0;
}

.services h2,
.contact h2 {
  text-align: center;
  font-size: 1.9rem;
  margin-bottom: 40px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 32px 28px;
  text-align: left;
}

.service-icon {
  color: var(--color-primary);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.15rem;
  margin: 0 0 12px;
}

.service-card p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.97rem;
}

/* Contact */
.contact {
  background: var(--color-surface);
  padding: 72px 0 88px;
  border-top: 1px solid var(--color-border);
}

.contact-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.contact-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-row input,
.form-row textarea {
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.contact-form .btn {
  align-self: flex-start;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: #cdd8e0;
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.9rem;
}

.footer-inner .linkedin-link {
  color: #cdd8e0;
}

.footer-inner .linkedin-link:hover {
  color: #fff;
}

/* Mobile */
@media (max-width: 600px) {
  .hero {
    padding: 56px 0;
  }

  .services,
  .contact {
    padding: 48px 0;
  }

  .header-inner {
    justify-content: center;
    text-align: center;
  }

  .main-nav {
    justify-content: center;
  }

  .contact-form .btn {
    align-self: stretch;
    text-align: center;
  }
}