/* =========================================================
   styles.css
   Purpose: Shared styling for ALL pages (layout + theme)
   ========================================================= */

/* --------- Basic reset (prevents weird default spacing) --------- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* --------- Theme tokens (change colors once here) --------- */
:root{
  --bg: #060e2c;          /* page background */
  --surface: #0b1b53;     /* card / section background */
  --surface-2: #102779;   /* slightly different surface */
  --text: #e8eefc;        /* main text */
  --muted: #b7c3e6;       /* secondary text */
  --accent: #6ea8ff;      /* links / highlights */
  --border: rgba(255,255,255,.12);
  --radius: 16px;
  --shadow: 0 14px 34px rgba(0,0,0,.35);
}

/* --------- Base typography --------- */
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% 10%, rgba(110,168,255,.18), transparent 60%),
              radial-gradient(900px 600px at 80% 20%, rgba(170,110,255,.14), transparent 60%),
              var(--bg);
  line-height: 1.5;
}

/* --------- Helper container (keeps content centered) --------- */
.container{
  width: min(1100px, 92vw);
  margin: 0 auto;
}

/* =========================================================
   Header + Navigation
   ========================================================= */
.site-header{
  position: sticky;   /* keeps nav visible when scrolling */
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,.70);
  border-bottom: 1px solid var(--border);
}

.header-inner{
  display: flex;              /* puts brand and nav on one row */
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand a{
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .3px;
  font-size: 1.1rem;
}

.brand small{
  color: var(--muted);
}

/* --------- Top nav menu --------- */
.nav ul{
  list-style: none;   /* removes bullets */
  margin: 0;
  padding: 0;
  display: flex;
  gap: 10px;
}

.nav a{
  display: inline-block;
  padding: 10px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid transparent;
}

.nav a:hover{
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,.03);
}

/* --------- Active page link styling --------- */
.nav a[aria-current="page"]{
  color: var(--text);
  border-color: rgba(110,168,255,.45);
  background: rgba(110,168,255,.12);
}

/* =========================================================
   Page layout: sidebar + main content
   ========================================================= */
.page{
  padding: 24px 0 48px;
}
/* Sidebar + content layout grid */
.layout{
  display: grid;
  grid-template-columns: 280px 1fr; /* sidebar / content */
  gap: 18px;
  align-items: start;
}

/* Optional: make sidebar sticky */
.sidebar-slot{
  position: sticky;
  top: 84px; /* adjust if your header height differs */
}

/* Mobile: stack sidebar above content */
@media (max-width: 900px){
  .layout{ grid-template-columns: 1fr; }
  .sidebar-slot{ position: static; }
}

/* main grid: sidebar + content columns */
.grid{
  display: grid;
  grid-template-columns: 280px 1fr; /* left sidebar, right content */
  gap: 18px;
  align-items: start;
}

/* sidebar card */
.sidebar{
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

/* When sidebar is hidden, let content span full width */
.layout.no-sidebar {
  grid-template-columns: 1fr;
}

/* main content area */
.main{
  display: grid;
  gap: 18px;
}

/* reusable content "block" (card) */
.block{
  background: rgba(15,26,48,.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

/* a 2-column section inside main content */
.two-col{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
}

/* =========================================================
   Components: buttons, forms, lists
   ========================================================= */
.button{
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(110,168,255,.45);
  background: rgba(110,168,255,.14);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.button:hover{
  background: rgba(110,168,255,.20);
}

.kv{
  display: grid;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
}

.kv span{
  display: inline-block;
  padding: 8px 10px;
  border: 1px dashed rgba(255,255,255,.14);
  border-radius: 12px;
  background: rgba(255,255,255,.02);
}

/* Form styling for contact page */
.form{
  display: grid;
  gap: 12px;
}

.label{
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: .95rem;
}

input, textarea{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.20);
  color: var(--text);
  outline: none;
}

input:focus, textarea:focus{
  border-color: rgba(110,168,255,.55);
  box-shadow: 0 0 0 3px rgba(110,168,255,.18);
}

footer{
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 18px 0;
}

/* =========================================================
   Responsive: stack sidebar above content on small screens
   ========================================================= */
@media (max-width: 900px){
  .grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
}