/* ---------------------------------------------------------------------------
   Theme tokens. Dark values are the original design, verbatim.
   Resolution order:
     1. explicit user choice via data-theme attribute (set by main.js)
     2. OS preference via prefers-color-scheme
     3. dark (the original design) as the fallback
   The hero terminal deliberately keeps its dark palette in both themes —
   its colors live in fixed --term-* tokens, not the theme-switched ones.
--------------------------------------------------------------------------- */
:root {
  --bg: #0a0a0a;
  --bg-translucent: #0a0a0acc;
  --text: #e8e8e8;
  --muted: #8b93a1;
  --faint: #6b7280;
  --fainter: #4b5563;
  --border: #1a1d23;
  --surface: #0d0f12;
  --surface-raised: #1a1d23;
  --logo-bg: #12131a;
  --accent: #3a86ff;
  --accent-hover: #6ba3ff;
  --on-accent: #0a0a0a;
  --green: #39d353;
  --yellow: #e0a52c;
  --input-bg: #0a0a0a;
  --input-border: #1a1d23;
  --btn2-border: #2a2d35;

  /* Fixed terminal palette (never theme-switched) */
  --term-bg: #0d0f12;
  --term-bar: #1a1d23;
  --term-border: #1a1d23;
  --dot-red: #e6564b;
  --dot-yellow: #e0a52c;
  --dot-green: #39d353;
}

/* Light palette: same visual language — paper background, ink text, the same
   accent blue darkened enough to hold contrast on white. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #fafaf8;
    --bg-translucent: #fafaf8cc;
    --text: #1f2328;
    --muted: #57606a;
    --faint: #6e7781;
    --fainter: #8c959f;
    --border: #e4e4de;
    --surface: #f2f2ee;
    --surface-raised: #e9e9e3;
    --logo-bg: #eef1f6;
    --accent: #1a63d8;
    --accent-hover: #124aa8;
    --on-accent: #ffffff;
    --green: #187a33;
    --yellow: #9a6700;
    --input-bg: #ffffff;
    --input-border: #d5d5cf;
    --btn2-border: #c8c8c2;
  }
}
:root[data-theme="light"] {
  --bg: #fafaf8;
  --bg-translucent: #fafaf8cc;
  --text: #1f2328;
  --muted: #57606a;
  --faint: #6e7781;
  --fainter: #8c959f;
  --border: #e4e4de;
  --surface: #f2f2ee;
  --surface-raised: #e9e9e3;
  --logo-bg: #eef1f6;
  --accent: #1a63d8;
  --accent-hover: #124aa8;
  --on-accent: #ffffff;
  --green: #187a33;
  --yellow: #9a6700;
  --input-bg: #ffffff;
  --input-border: #d5d5cf;
  --btn2-border: #c8c8c2;
}

/* ------------------------------------------------------------------------- */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', monospace;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* Nav */
nav {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-translucent);
  backdrop-filter: blur(6px);
  z-index: 10;
}
nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 34px; height: 34px;
  background: var(--logo-bg);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: bold;
  color: var(--accent);
}
.logo-text { font-size: 22px; font-weight: bold; }
.navlinks {
  display: flex; align-items: center; gap: 36px;
  font-size: 14px; color: var(--muted);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-outline-accent {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 9px 18px;
  border-radius: 4px;
  font-size: 13px;
  white-space: nowrap;
}

#theme-toggle {
  background: none;
  border: 1px solid var(--btn2-border);
  color: var(--muted);
  border-radius: 4px;
  width: 36px; height: 36px;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  line-height: 1;
}
#theme-toggle:hover { color: var(--text); border-color: var(--muted); }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 100px 32px;
  border-bottom: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
}
.hero-copy { display: flex; flex-direction: column; gap: 24px; }
.kicker { color: var(--green); font-size: 14px; letter-spacing: 1px; }
h1 { font-size: 48px; line-height: 1.2; margin: 0; font-weight: bold; }
.lede { font-size: 17px; color: var(--muted); margin: 0; line-height: 1.6; }
.hero-ctas { display: flex; gap: 16px; margin-top: 8px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: bold;
}
.btn-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn-secondary {
  border: 1px solid var(--btn2-border);
  color: var(--text);
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 15px;
}
.btn-secondary:hover { color: var(--text); border-color: var(--muted); }

/* Terminal (always dark) */
.term {
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 8px;
  overflow: hidden;
}
.term-bar {
  display: flex; gap: 8px; align-items: center;
  padding: 10px 14px;
  background: var(--term-bar);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: var(--dot-red); }
.dot-yellow { background: var(--dot-yellow); }
.dot-green { background: var(--dot-green); }
#term-body {
  padding: 24px 26px;
  font-size: 15px;
  line-height: 1.85;
  min-height: 130px;
}
.cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: #3a86ff;
  vertical-align: -2px;
  animation: blink 1s step-start infinite;
}
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* Sections */
.section { padding: 100px 32px; border-bottom: 1px solid var(--border); }
.section-label { color: var(--green); font-size: 13px; margin-bottom: 12px; }
h2 { font-size: 34px; margin: 0 0 48px; font-weight: bold; }

.services-grid, .cs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card-icon { color: var(--accent); font-size: 22px; }
.card-title { font-size: 19px; font-weight: bold; }
.card-body { color: var(--muted); font-size: 15px; line-height: 1.6; }

.cs-card { color: var(--text); }
.cs-card:hover { color: var(--text); border-color: var(--muted); }
.cs-tag { color: var(--yellow); font-size: 12px; letter-spacing: 1px; }
.cs-title { font-size: 20px; font-weight: bold; line-height: 1.4; }
.cs-link { color: var(--accent); font-size: 14px; margin-top: auto; }

/* Contact */
.contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  border-bottom: none;
}
.contact-head { text-align: center; display: flex; flex-direction: column; gap: 12px; }
.contact-head h2 { margin: 0; }
.contact-head p { color: var(--muted); font-size: 16px; margin: 0; }

form {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; color: var(--muted); }
input, textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  padding: 10px 12px;
  color: var(--text);
  font-family: 'Courier New', monospace;
  font-size: 14px;
}
input:focus, textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.btn-submit {
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  padding: 14px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: bold;
  font-family: 'Courier New', monospace;
  cursor: pointer;
}
.btn-submit:hover { background: var(--accent-hover); }

/* Footer */
footer {
  display: flex;
  justify-content: space-between;
  padding: 28px 32px;
  border-top: 1px solid var(--border);
  color: var(--fainter);
  font-size: 13px;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding: 60px 24px; }
  .services-grid, .cs-grid { grid-template-columns: 1fr; }
  .navlinks { display: none; }
  h1 { font-size: 34px; }
}