/* =========================================================
   CYBERSECURITY / IT PORTFOLIO TEMPLATE — SHARED STYLES
   Token system:
   Color   — bg #0a0e14, panel #10161c, border #1c2732,
             text #dbe4ea, muted #6b7a88,
             accent (signal) #35e8a0, alert #ff5f5f
   Type    — Display/Nav: 'JetBrains Mono', Body: 'Inter'
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #0a0e14;
  --bg-panel: #10161c;
  --bg-panel-hover: #141b23;
  --border: #1c2732;
  --border-bright: #2a3b48;
  --text: #dbe4ea;
  --muted: #6b7a88;
  --accent: #35e8a0;
  --accent-dim: #1f8a63;
  --alert: #ff5f5f;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --body: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 42px 42px;
  background-attachment: fixed;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--body);
  line-height: 1.6;
  min-height: 100vh;
}

/* subtle vignette so the grid doesn't fight with content */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, var(--bg) 78%);
  pointer-events: none;
  z-index: 0;
}

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

::selection { background: var(--accent-dim); color: #04140d; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- layout shell ---------- */

.shell {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ---------- topbar / breadcrumb nav (sub-pages) ---------- */

.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  font-family: var(--mono);
  font-size: 13px;
}

.topbar .brand {
  color: var(--text);
  letter-spacing: 0.02em;
}
.topbar .brand span { color: var(--accent); }

.topbar nav { display: flex; gap: 22px; }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
}
.topbar nav a:hover,
.topbar nav a[aria-current="page"] { color: var(--accent); }
.topbar nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 1px;
  background: var(--accent);
}

/* ---------- terminal-style page header (used on sub-pages) ---------- */

.page-head {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  border-radius: 4px;
  padding: 22px 26px;
  margin-bottom: 40px;
}

.page-head .tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.page-head .tag::before { content: "//"; color: var(--muted); }

.page-head h1 {
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 36px);
  margin: 0 0 8px;
  font-weight: 700;
}

.page-head p {
  color: var(--muted);
  margin: 0;
  max-width: 62ch;
}

/* ---------- generic section / panel ---------- */

.panel {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  border-radius: 4px;
  padding: 26px;
}

.section-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

/* ---------- footer ---------- */

footer.site-footer {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 40px auto 0;
  padding: 24px;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 14px; }
  .topbar nav { flex-wrap: wrap; gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}