/* --- Variables --- */
:root {
  --bg: #0f1216;
  --surface: #181c24;
  --border: #2a3140;
  --text: #e6e9ef;
  --text-muted: #8b92a4;
  --accent: #6ee7b7;
  --accent-dim: #3d9b73;
  --focus: #6ee7b7;
}

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

body {
  margin: 0;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* --- Email sidebar (fixed left, eye level) --- */
.email-sidebar {
  display: none;
}

@media (min-width: 900px) {
  .email-sidebar {
    display: block;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 18rem;
    padding: 1.5rem 1.5rem 2rem 2rem;
    background: var(--surface);
    border-right: 1px solid var(--border);
    z-index: 10;
    overflow-y: auto;
  }

  .sidebar-contact-title {
    margin: 0 0 0.35rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
  }

  .sidebar-contact-intro {
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
    color: var(--text-muted);
  }

  .email-sidebar-tagline {
    margin: 0 0 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text);
  }

  .email-sidebar-link {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    word-break: break-all;
    transition: color 0.2s;
  }

  .email-sidebar-link:hover {
    color: var(--accent-dim);
  }

  .email-sidebar-link:focus {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
  }

  .sidebar-services-title {
    margin: 1.5rem 0 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
  }

  .sidebar-services-list {
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 0.9rem;
    color: var(--text-muted);
  }

  .sidebar-services-list li {
    margin-bottom: 0.35rem;
  }

  .page-content {
    margin-left: 18rem;
  }

  .services {
    display: none;
  }
}

.container {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* --- Header --- */
.site-header {
  padding: 2.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.tagline {
  margin: 0.35rem 0 0;
  font-size: 1rem;
  color: var(--text-muted);
}

/* --- Intro --- */
.intro {
  padding: 2rem 0;
}

.intro h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}

.intro-text {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* --- About --- */
.about {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
}

.about h2 {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
}

.about p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.about p:last-child {
  margin-bottom: 0;
}

/* --- Services --- */
.services {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
}

.services h2 {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
}

.services-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.services-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.services-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.services-list li:last-child {
  border-bottom: none;
}

/* --- Contact --- */
.contact {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.contact h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent);
}

.contact-intro {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-cta {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
}

.contact-details {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (min-width: 900px) {
  .contact {
    display: none;
  }
}

.contact-link {
  display: inline-flex;
  flex-direction: column;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-link:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 1px var(--accent-dim);
}

.contact-link:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 2px var(--focus);
}

.contact-link .label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-link .value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  color: var(--accent);
}

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

.site-footer p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (min-width: 600px) {
  .site-header {
    padding: 3rem 0 2.5rem;
  }

  .logo {
    font-size: 2rem;
  }

  .intro {
    padding: 2.5rem 0;
  }

  .about h2,
  .services h2,
  .contact h2 {
    font-size: 1.5rem;
  }
}