/*==============================================================
  chrome.css — shared site header + footer

  Loaded by EVERY page, on both stacks:
    · refreshed pages  → chrome.css, then site.css
    · older pages      → the Colorlib chain, then chrome.css

  Because it has to survive next to bootstrap.css, every rule is
  scoped under .site-header / .site-footer. That beats Bootstrap's
  own .nav and .nav-link on specificity, so the chrome renders the
  same whether or not Bootstrap is present. Nothing here styles a
  bare element or the page body — that stays page-level.

  This file also owns the design tokens; site.css assumes it loaded
  first. Older pages get the same values from refresh.css.
==============================================================*/

:root{
  --ink:        #171a26;   /* headings, primary text        */
  --ink-soft:   #4a5163;   /* body text                     */
  --muted:      #6b7385;   /* secondary / meta text         */
  --line:       #e8eaf2;   /* hairline borders              */
  --line-strong:#e0e2f0;   /* button borders, dividers      */
  --bg:         #ffffff;
  --bg-tint:    #f7f8fc;   /* alternating section background */
  --accent:     #4f46e5;   /* indigo                        */
  --accent-2:   #7c3aed;   /* violet                        */
  --accent-ink: #3730a3;
  --dark:       #12141f;   /* footer, diagram panel, chrome */
  --dark-soft:  #7c8296;   /* text on --dark                */
  --micro:      #8a90a3;   /* mono micro-labels on light    */
  --index:      #a8adbf;   /* row index numerals            */
  --live:       #3ddc84;   /* status dot only               */
  --grad: linear-gradient(120deg,#4f46e5 0%,#7c3aed 100%);
  --shadow-sm: 0 1px 2px rgba(23,26,38,.06), 0 2px 8px rgba(23,26,38,.05);
  --shadow-md: 0 10px 30px -12px rgba(23,26,38,.22);
  --mono: ui-monospace,SFMono-Regular,Menlo,monospace;
  --display: 'Space Grotesk','Inter',sans-serif;
  --ease: cubic-bezier(.22,.7,.2,1);
}

/* Bootstrap supplies this globally on the older pages and site.css
   on the refreshed ones; asserted here so the chrome sizes the same
   either way. */
.site-header,.site-footer,.site-header *,.site-footer *{ box-sizing:border-box; }

/* Shared 1160px container. Used by page bodies on the refreshed
   pages too, which is why it lives here rather than in site.css. */
.wrap{ max-width:1160px; margin:0 auto; padding:0 32px; }

/*----------------------  Header  ----------------------*/
.site-header{
  position:sticky; top:0; z-index:999;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid rgba(23,26,38,.06);
  padding:0;
}
.site-header .wrap{
  padding:11px 32px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.header-strip{ height:2px; background:linear-gradient(90deg,#4f46e5,#7c3aed,transparent 70%); opacity:.5; }

.site-header .brand{ display:inline-flex; align-items:center; gap:12px; text-decoration:none; }
.site-header .brand img{ width:36px; height:36px; border-radius:10px; box-shadow:0 6px 16px -7px rgba(79,70,229,.7); }
.site-header .brand-lockup{ display:flex; flex-direction:column; line-height:1.1; }
.site-header .brand-name{ font-family:var(--display); font-weight:700; color:var(--ink); letter-spacing:-.025em; font-size:1.15rem; }
.site-header .brand-kicker{ font-family:var(--mono); font-size:9.5px; letter-spacing:.15em; text-transform:uppercase; color:var(--micro); margin-top:3px; }

.site-header .nav{
  display:flex; align-items:center; gap:4px;
  margin:0; padding:0; list-style:none;
}
.site-header .nav-link{
  position:relative; display:inline-block;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--ink-soft); font-weight:500; font-size:14.5px; line-height:1.5;
  text-decoration:none; text-transform:none;
  padding:8px 14px; border-radius:9px;
  background:transparent; border:0;
  transition:background .18s ease,color .18s ease;
}
.site-header .nav-link:hover{ background:rgba(79,70,229,.09); color:var(--accent); }
.site-header .nav-link.is-current{ color:var(--ink); font-weight:600; background:rgba(79,70,229,.08); }
.site-header .nav-link.is-current:hover{ color:var(--accent); background:rgba(79,70,229,.09); }
.site-header .nav-div{ width:1px; height:20px; background:var(--line-strong); margin:0 12px; }
.site-header .nav-ext{ display:inline-flex; align-items:center; gap:6px; color:var(--muted); padding:8px 12px; }
.site-header .nav-ext:hover{ color:var(--accent); }
.site-header .ext-arrow{ font-size:11px; opacity:.7; }
.site-header .nav-resume{
  margin-left:10px;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--grad); color:#fff; font-weight:600; font-size:14.5px; line-height:1.5;
  text-decoration:none; text-transform:none;
  padding:10px 22px; border-radius:999px; border:0;
  box-shadow:0 6px 18px -6px rgba(79,70,229,.6);
  transition:transform .2s ease,box-shadow .2s ease;
}
.site-header .nav-resume:hover{ color:#fff; transform:translateY(-2px); box-shadow:0 12px 26px -8px rgba(79,70,229,.7); }

/* Phone nav: collapse into a toggle. Replaces the old jQuery
   #mobile-nav clone, which depended on main.css. */
.site-header .nav-toggle{
  display:none;
  cursor:pointer; border:1px solid var(--line-strong); background:#fff;
  color:var(--accent); width:42px; height:42px; border-radius:11px;
  font-size:18px; line-height:1; align-items:center; justify-content:center;
}

/*----------------------  Footer  ----------------------*/
.site-footer{ background:var(--dark); padding:0; }
.site-footer .footer-grid{
  padding:58px 32px 0;
  display:grid; grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr); gap:48px;
}
.site-footer .footer-brand{ display:flex; align-items:center; gap:12px; margin-bottom:18px; }
.site-footer .footer-brand img{ width:34px; height:34px; border-radius:9px; }
.site-footer .footer-brand span{ color:#fff; font-family:var(--display); font-weight:700; font-size:1.08rem; letter-spacing:-.025em; }
.site-footer .footer-col > p{ color:var(--dark-soft); font-size:.88rem; line-height:1.7; margin:0 0 22px; max-width:34ch; }
.site-footer .footer-email{
  font-family:var(--display); font-size:1.12rem; font-weight:600; color:#fff;
  letter-spacing:-.01em; text-decoration:none;
  border-bottom:1px solid rgba(124,58,237,.7); padding-bottom:3px;
}
.site-footer .micro{
  font-family:var(--mono); font-size:10px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--dark-soft); margin-bottom:16px;
}
.site-footer .footer-links{ display:flex; flex-direction:column; gap:11px; align-items:flex-start; }
.site-footer .footer-links a{ color:#9aa1b4; font-size:.9rem; font-weight:400; text-decoration:none; }
.site-footer .footer-links a.is-current{ color:#fff; font-weight:600; }
.site-footer .ext-arrow{ font-size:10px; opacity:.6; }
.site-footer a:hover{ color:#fff; }
.site-footer .footer-bottom{
  margin-top:44px; padding:18px 0 26px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap;
}
.site-footer .footer-bottom span{ color:var(--dark-soft); font-size:.78rem; font-family:var(--mono); }

/*----------------------  Responsive  ----------------------*/
@media (max-width:1020px){
  .site-header .nav{ gap:0; }
  .site-header .nav-link{ padding:8px 10px; font-size:13.5px; }
  .site-header .nav-ext{ padding:8px 10px; font-size:13.5px; }
  .site-header .nav-div{ margin:0 8px; }
  .site-footer .footer-grid{ grid-template-columns:minmax(0,1fr) auto auto; gap:36px; }
}

@media (max-width:860px){
  .site-header .nav-toggle{ display:inline-flex; }
  .site-header .wrap{ position:relative; }
  .site-header .nav{
    display:none;
    position:absolute; left:0; right:0; top:100%;
    flex-direction:column; align-items:stretch; gap:2px;
    background:#fff; border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px -22px rgba(23,26,38,.4);
    padding:12px 20px 20px;
  }
  .site-header .nav.is-open{ display:flex; }
  .site-header .nav-link,.site-header .nav-ext{ font-size:15px; padding:10px 12px; }
  .site-header .nav-div{ width:auto; height:1px; margin:8px 0; }
  .site-header .nav-resume{ margin-left:0; margin-top:8px; text-align:center; }
}

@media (max-width:640px){
  .wrap{ padding:0 20px; }
  .site-header .wrap{ padding:11px 20px; }
  .site-footer .footer-grid{ grid-template-columns:1fr; padding:48px 20px 0; }
  .site-footer .footer-bottom{ gap:10px; }
}

@media (prefers-reduced-motion:reduce){
  .site-header .nav-resume:hover{ transform:none; }
}