/* ------------------ styles.css — Design tokens & site styles ------------------ */
:root{
  /* Design tokens */
  --bg-solid: #fbfbfc; /* light fallback - slightly lighter */
  --bg: var(--bg-solid);
  --surface: #ffffff;
  --text: #0f1724;
  --muted: #374151;
  --muted2: #6b7280;
  --accent: #0a84ff;
  --accent-2: #51b977;
  --overlay-frost: rgba(255,255,255,0.55);
  /* Background used for overlay navigation links (theme-aware) */
  --overlay-link-bg: rgba(255,255,255,0.02);
  --overlay-link-bg-hover: rgba(255,255,255,0.04);
  --glass-blur: 8px;
  --radius: 12px;
  --max: 1200px;

  /* Motion */
  --motion-fast: 180ms;
  --motion-medium: 280ms;
  --elevation-shadow: 0 10px 30px rgba(2,6,23,0.08);

  --header-frost: rgba(255,255,255,0.85);
  --header-border: rgba(0,0,0,0.06);

  transition: background .32s ease, color .32s ease;
  --link: #0a84ff;
  --link-hover: #065fd6;
  /* Thumbnail background used for project card image placeholders */
  --thumb-bg: linear-gradient(180deg, rgba(0,0,0,0.06), rgba(0,0,0,0.04));
}

/* ------------------ Dark theme overrides ------------------ */
:root.theme-dark{
  /* slightly lighter dark gradient so page backgrounds are a touch brighter */
  --bg: linear-gradient(180deg,#0e0e0e 0%, #111113 48%, #141415 100%);
  --surface: rgba(255,255,255,0.03);
  --text: #f8fafc;
  --muted: rgba(255,255,255,0.88);
  --muted2: rgba(255,255,255,0.65);
  --accent: #9ca3af;
  --accent-2: #d1d5db;
  --overlay-frost: rgba(8,8,10,0.6);
  /* Stronger translucent backgrounds for overlay links in dark mode so the frosted panels are visible */
  --overlay-link-bg: rgba(255,255,255,0.08);
  --overlay-link-bg-hover: rgba(255,255,255,0.12);
  /* Darker thumbnail background in dark mode */
  --thumb-bg: linear-gradient(180deg,#0a0a0a,#0b0b0b);
  --header-frost: rgba(10,10,12,0.6);
  --header-border: rgba(255,255,255,0.04);
  --link: #7bd4ff;
  --link-hover: #5bd4ff;
  /* Footer surface used for footer band (keeps consistent across pages) */
  --footer-bg: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  /* Stronger solid footer color in dark mode for consistent band (no gradient artifacts) */
  --footer-solid: #0b0b0b;
  /* Card surface tokens — make cards almost as dark as the footer */
  --card-surface: #0c0c0c;
  --card-surface-2: #0b0b0b;
}

/* Light theme footer bg (subtle frosted band) */
:root{
  --footer-bg: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  --footer-solid: rgba(255,255,255,0.02);
  /* Card surface tokens for light theme (subtle, slightly darker than footer band) */
  --card-surface: rgba(255,255,255,0.8);
  --card-surface-2: rgba(255,255,255,0.7);
}

/* ------------------ Reset & base ------------------ */
*{box-sizing:border-box}
html,body{height:100%}
/* Make the background gradient cover the viewport and stay fixed so it
  visually extends beneath content and the footer (prevents visible seams). */
html, body, .page-resume{background: var(--bg) fixed center/cover no-repeat !important}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Segoe UI',Roboto,'Helvetica Neue',Arial;color:var(--text);-webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh}
.container{max-width:var(--max);margin:0 auto;padding:2rem}
main{flex:1}

/* ------------------ Header & navigation ------------------ */
.site-header{position:sticky;top:0;backdrop-filter:blur(6px);background:linear-gradient(180deg, rgba(0,0,0,0.01), transparent);padding:.75rem 0;z-index:1500;transition:background-color .28s ease, box-shadow .28s ease, border-color .28s ease}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;color:var(--text);text-decoration:none}
.nav{display:flex;gap:1rem;align-items:center}
.nav a{color:var(--muted);text-decoration:none;padding:.4rem .6rem;border-radius:8px}
.nav a:hover{color:var(--text);background:rgba(0,0,0,0.04)}
.nav a.active{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#021628}
.nav-toggle{display:block;background:transparent;border:0;color:var(--muted);font-size:1.25rem}

.header-actions{display:flex;align-items:center;gap:.5rem}
.theme-toggle{background:transparent;border:1px solid rgba(0,0,0,0.06);padding:.4rem .5rem;border-radius:8px;font-size:1rem;display:inline-flex;align-items:center;justify-content:center}
.theme-toggle[aria-pressed="true"]{background:var(--accent);color:#021628;border-color:transparent}
.theme-toggle svg{width:18px;height:18px;display:inline-block}
.theme-toggle .icon-sun{display:none}
.theme-toggle .icon-moon{display:block}
.theme-toggle[aria-pressed="true"] .icon-sun{display:block}
.theme-toggle[aria-pressed="true"] .icon-moon{display:none}

/* ------------------ Hamburger (mobile toggle) ------------------ */
.nav-toggle{display:block;background:transparent;border:0;color:var(--muted);font-size:1.25rem}


.nav-overlay{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:1600}
/* ------------------ Overlay (fullscreen frosted nav) ------------------ */
.nav-overlay{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:1600}
.nav-overlay.open{display:flex}
.nav-overlay::before{content:'';position:absolute;inset:0;background:var(--overlay-frost);backdrop-filter:blur(10px)}
.nav-overlay-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;width:100%;height:100%}
.overlay-nav{display:flex;flex-direction:column;gap:1.25rem;align-items:center}
.overlay-nav a{font-size:1.5rem;color:var(--text);text-decoration:none;padding:.75rem 1.25rem;border-radius:10px;background:var(--overlay-link-bg)}
.overlay-nav a:hover{background:var(--overlay-link-bg-hover)}
.overlay-close{position:fixed;top:18px;right:18px;z-index:1700;background:transparent;border:0;color:var(--muted);font-size:1.5rem}


/* -----------------------------
   Hero / Intro
  .hero--large{position:relative;padding:6rem 0 4rem;overflow:hidden}
  .hero-bg{position:absolute;inset:0;background-image:url('../assets/hero-ornament.svg');background-repeat:no-repeat;background-position:right center;background-size:contain;opacity:.18;filter:grayscale(10%);transform:translateZ(0)}
  .hero-inner{display:flex;gap:2rem;align-items:stretch}
  .hero-content{flex:1;max-width:720px}
  .display-title{font-size:5rem;line-height:0.9;margin:0;font-weight:800;letter-spacing:-1px}
  /* Light-mode: use the buttons' dark-theme accent gradient for the last name */
  .display-title .accent{background:linear-gradient(90deg,#9ca3af,#5bd4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
  .subtitle{color:var(--muted);margin-top:.5rem;font-weight:600}
  .lead{margin-top:1rem;color:var(--muted2);font-size:1.05rem}
  /* ------------------ Hero / Intro ------------------ */
  .hero--large{position:relative;padding:6rem 0 4rem;overflow:hidden}
  .hero-bg{position:absolute;inset:0;background-image:url('../assets/hero-ornament.svg');background-repeat:no-repeat;background-position:right center;background-size:contain;opacity:.18;filter:grayscale(10%);transform:translateZ(0)}
  .hero-inner{display:flex;gap:2rem;align-items:stretch}
  .hero-content{flex:1;max-width:720px}
  .display-title{font-size:5rem;line-height:0.9;margin:0;font-weight:800;letter-spacing:-1px}
  /* Light-mode: use the buttons' dark-theme accent gradient for the last name */
  .display-title .accent{background:linear-gradient(90deg,#9ca3af,#5bd4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
  .subtitle{color:var(--muted);margin-top:.5rem;font-weight:600}
  .lead{margin-top:1rem;color:var(--muted2);font-size:1.05rem}

  /* ------------------ About lead adjustments ------------------ */
  .about-page .lead{background:transparent;color:var(--text);padding:0;border-radius:0;border:0;font-size:1.05rem}
  .about-page section{background:transparent}

  .cta{margin-top:1.6rem;display:flex;gap:0.75rem}
  .btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1rem;border-radius:10px;text-decoration:none;font-weight:600}
  .btn-primary{background:linear-gradient(90deg,var(--accent),#5bd4ff);color:#021628;box-shadow:0 8px 30px rgba(119,182,255,0.12)}
  .btn-outline{border:1px solid rgba(0,0,0,0.08);background:transparent;color:var(--muted)}

  .hero-side{width:320px;display:flex;align-items:flex-start;justify-content:flex-end}
  .feature-card{background:linear-gradient(180deg, rgba(0,0,0,0.06), rgba(0,0,0,0.04));backdrop-filter:blur(var(--glass-blur));padding:1rem;border-radius:14px;border:1px solid rgba(0,0,0,0.06);width:260px}
  .feature-card .muted{color:var(--muted2);font-size:.9rem;margin-top:.2rem}
  .feature-card .small{font-size:.85rem;color:var(--muted2);margin-top:.6rem}

.hero-side{width:320px;display:flex;align-items:flex-start;justify-content:flex-end}
.feature-card{background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));backdrop-filter:blur(var(--glass-blur));padding:1rem;border-radius:14px;border:1px solid rgba(0,0,0,0.06);width:260px}
.feature-card h4{margin:0 0 .2rem 0;color:#5bd4ff}
.feature-card .muted{color:var(--muted2);font-size:.9rem;margin-top:.2rem}
.feature-card .small{font-size:.85rem;color:var(--muted2);margin-top:.6rem}


/* -----------------------------
   Cards / Lists
   ----------------------------- */
.intro-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:2rem}
.card{padding:1.25rem;border-radius:12px}
.glass{background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));border:1px solid rgba(0,0,0,0.06);backdrop-filter:blur(var(--glass-blur))}

/* Intro cards hover animation: subtle lift and scale on hover for interactive affordance */
.intro-cards .card{transition:transform var(--motion-fast) cubic-bezier(.2,.9,.2,1),box-shadow var(--motion-fast) ease,background-color var(--motion-fast) ease,opacity var(--motion-fast) ease}
.intro-cards .card:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 18px 36px rgba(2,6,23,0.08)}
.intro-cards .card:active{transform:translateY(-2px) scale(1.01)}

/* Featured project cursor and focus styles */
#featured-project{cursor:pointer}
#featured-project:focus{outline:2px solid rgba(11,132,255,0.14);outline-offset:4px}
#featured-project:hover{transform:translateY(-4px);box-shadow:0 20px 36px rgba(2,6,23,0.12)}
#featured-project{transition:transform var(--motion-fast) cubic-bezier(.2,.9,.2,1),box-shadow var(--motion-fast) ease,background-color var(--motion-fast) ease,opacity var(--motion-fast) ease}

.skills-list{display:flex;gap:1rem;list-style:none;padding:0;margin:1rem 0;flex-wrap:wrap}
.skills-list li{background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));padding:.5rem .75rem;border-radius:999px;color:var(--muted);font-weight:600}

.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;margin-top:1rem}
.project{background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));padding:1rem;border-radius:12px;border:1px solid rgba(0,0,0,0.06)}
.meta{color:var(--muted2);font-size:.9rem}

/* Projects page: collapsible sections and project cards */
.collapsible-section{margin-top:1.5rem;border-radius:12px;padding:0;border:1px solid rgba(0,0,0,0.04);background:linear-gradient(180deg, rgba(0,0,0,0.02), rgba(0,0,0,0.01));}
.collapsible-section > summary{list-style:none;cursor:pointer;padding:1rem 1.25rem;font-weight:700}
.collapsible-section > summary::-webkit-details-marker{display:none}
.collapsible-section[open]{box-shadow:0 12px 36px rgba(2,6,23,0.06)}

.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;padding:1rem}
.project-card{background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));border-radius:10px;padding:1rem;border:1px solid rgba(0,0,0,0.04)}
.project-card h3{margin:0 0 .35rem 0}
.project-card .repo-link{margin-top:.5rem}

.card-details summary{cursor:pointer;padding:.5rem 0;font-weight:600}
.card-details summary::-webkit-details-marker{display:none}
.card-body{padding:.5rem 0;border-top:1px dashed rgba(255,255,255,0.02)}

.card-updates h4,.card-gallery h4{margin:0 0 .4rem 0;font-size:1rem}
.card-updates ul{margin:0 0 1rem 1.1rem}

.card-gallery .thumbs{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.5rem}
.thumb{height:90px;background:var(--thumb-bg);display:flex;align-items:center;justify-content:center;border-radius:6px;color:var(--muted2)}
.thumb img{width:100%;height:100%;object-fit:cover;border-radius:6px}

@media (max-width:700px){
  .projects-grid{grid-template-columns:1fr}
  .collapsible-section{padding:0}
}

/* Two-column projects layout */
.projects-section{margin-top:1.5rem}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;padding:1rem 0}

/* Small vertical space for stacked project cards inside collapsible sections
  — avoids doubling spacing in grid layouts while giving stacked cards breathing room */
.collapsible-section .project-card + .project-card{margin-top:.75rem}
.project-card{margin:0;background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));border-radius:10px;padding:1rem;border:1px solid rgba(0,0,0,0.06)}


/* Ensure small screens stack columns */
@media (max-width:900px){
  .projects-columns{grid-template-columns:1fr}
  .project-column{min-height:40vh}
}

/* Global link styles (content links). Nav links have their own rules and remain unchanged */
a{color:var(--link)}
a:hover{color:var(--link-hover);text-decoration:underline}



/* -----------------------------
   Footer
   ----------------------------- */
.site-footer{position:relative;z-index:20;padding:2rem 0;color:var(--muted);background-color:var(--footer-solid);border-top: 1px solid var(--header-border)}
.site-footer .footer-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.site-footer .footer-left{font-size:.95rem;color:var(--muted)}
.site-footer .footer-right{display:flex;flex-direction:column;gap:.5rem;align-items:flex-end}
.site-footer .footer-right a{color:var(--muted);text-decoration:none;padding:.4rem .6rem;border-radius:8px}
.site-footer .footer-right a:hover{color:var(--text);background:rgba(0,0,0,0.04)}

/* Cleaner footer link list */
.footer-links{display:flex;gap:.25rem;list-style:none;padding:0;margin:0;align-items:center}
.footer-links li{margin:0;padding:0}
.footer-links li + li::before{content:"•";margin:0 .5rem;color:var(--muted2)}
.footer-links a{color:var(--muted2);padding:.25rem .4rem;border-radius:6px;font-size:.95rem}
.footer-links a:hover{color:var(--text);background:rgba(0,0,0,0.04)}

/* On small screens show stacked layout */
.site-footer .footer-right .footer-links{display:flex;gap:.25rem;align-items:center}

@media (max-width:900px){
  /* keep footer links compact on medium screens */
  .site-footer .footer-right .footer-links{gap:.5rem}
}

@media (max-width:600px){
  .site-footer .footer-inner{flex-direction:column;align-items:flex-start}
  .footer-right{align-items:flex-start}
  .footer-links{flex-wrap:wrap;gap:.5rem;margin-top:.25rem}
  .footer-links li + li::before{content:"";margin:0}
}

/* Back to top button */
.back-to-top{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(8px);z-index:1800;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:999px;background:var(--surface);color:var(--text);border:1px solid rgba(0,0,0,0.06);box-shadow:0 6px 20px rgba(2,6,23,0.08);cursor:pointer;opacity:0;pointer-events:none;transition:transform .28s var(--motion-medium),opacity .22s var(--motion-fast)}
.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.back-to-top:focus{box-shadow:0 0 0 4px rgba(10,132,255,0.12)}
.back-to-top svg{width:18px;height:18px;display:block}

@media (max-width:700px){
  /* Move to bottom-right on smaller screens */
  .back-to-top{left:auto;right:18px;transform:translateY(8px);translate:none}
  .back-to-top.visible{transform:translateY(0)}
}

@media (prefers-reduced-motion: reduce){
  .back-to-top{transition:none}
}

/* Resume page: place the resume on a solid surface background
   - Use --surface so light/dark modes remain consistent
   - Keep footer as the lighter frosted area below
 */
.page-resume{background:var(--bg) !important;color:var(--text)}
.page-resume .resume-page{background:transparent;padding:3rem 0}
.page-resume .resume-page .container{padding-top:0;padding-bottom:0}
.page-resume .resume-doc{max-width:900px;margin:0 auto;padding:1.25rem;border-radius:0;background:transparent;color:var(--text)}
.resume-doc section{margin:0 0 1rem 0}

/* Ensure resume body copy uses the primary text color for contrast */
.page-resume .resume-doc,
.page-resume .resume-doc p,
.page-resume .resume-doc li,
.page-resume .resume-doc ul,
.page-resume .resume-doc a{
  color: var(--text);
}

/* Keep small metadata muted but readable */
.page-resume .resume-doc .muted,
.page-resume .resume-doc .meta{color:var(--muted2)}

/* Email line shown above footer links */
.footer-email{font-size:.98rem;color:var(--muted);margin-bottom:.25rem}
.footer-email a{color:var(--muted2);text-decoration:none}
.footer-email a:hover{color:var(--text);text-decoration:underline}

@media (max-width:600px){
  .footer-email{margin-top:0.5rem}
}

@media (max-width:600px){
  .site-footer .footer-inner{flex-direction:column;align-items:flex-start}
  .site-footer{padding:1.25rem}
}

/* Ensure resume page footer uses the same footer background and resume doc surface is consistent */
/* Allow the page background gradient to show through the footer so the
  resume background runs to the very bottom. If you prefer a solid band
  we can reintroduce --footer-solid specifically for other pages. */
/* Keep footer appearance consistent site-wide using the footer-solid token.
  Dark-mode value is a solid #0b0b0b; light-mode has a subtle light value. */
.page-resume .site-footer{background-color:var(--footer-solid)}
.page-resume .resume-doc{background:transparent;box-shadow:none;border:0}

/* Remove frosted / card-like surfaces inside the resume page to keep a flat, solid look */
.page-resume .card,
.page-resume .glass,
.page-resume .feature-card,
.page-resume .project,
.page-resume .intro-cards .card{
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

/* Also make any section-level surfaces transparent on resume */
.page-resume section{background:transparent !important}

/* Force the resume content area to be flat so the page background shows through
   - only target the main resume content (leave header/footer alone) */
.page-resume .resume-page,
.page-resume .resume-doc,
.page-resume .resume-doc *,
.page-resume main,
.page-resume main * {
  background: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  border-color: transparent !important;
}

/* Extracted resume layout (migrated from inline styles in resume.html) */
.page-resume .resume-doc {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem;
  color: var(--text);
}
.page-resume .resume-doc > .resume-header {
  text-align: center;
  margin-bottom: 1rem;
}
.page-resume .resume-doc > .resume-header h1 { margin-bottom: .25rem; }
.page-resume .resume-doc > .resume-header p { margin: 0 0 .25rem 0; }
.page-resume .resume-doc section { text-align: left; margin-top: 1.25rem; }
.page-resume .resume-doc section h2 { text-align: center; }
.page-resume .resume-doc section:last-of-type { margin-bottom: 1rem; }
.page-resume .resume-doc .portfolio-link { text-align: center; }
.page-resume .resume-doc .link-id {
  /* visually hide the trailing id but keep it in the DOM for copy/paste and screen readers */
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.page-resume .resume-doc .link-hidden {
  /* visually hide the leading www. while keeping it accessible */
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

/* Ensure the resume content is transparent so the page background (gradient) shows
   through fully down to the footer. This removes boxed/solid panels behind text. */
.page-resume main,
.page-resume .resume-doc,
.page-resume .resume-doc section {
  background: transparent !important;
  background-image: none !important;
}

/* Remove any pseudo-element decorations or background-images applied by components
   inside the resume page which can create dark boxes or panels. */
.page-resume *::before,
.page-resume *::after {
  background: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  content: none !important;
}

/* Re-enable the nav overlay pseudo-element on the resume page.
   A global rule above intentionally removed pseudo-elements to avoid
   unwanted decorative panels on the resume, but that also removed the
   overlay backdrop (which relies on ::before). Override that here so
   the frosted fullscreen nav still shows when the hamburger opens. */
.page-resume .nav-overlay::before {
  /* use !important so this wins over the global reset above; this
     rule is placed after the reset. */
  content: '' !important;
  position: absolute !important;
  inset: 0 !important;
  background: var(--overlay-frost) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  z-index: 1 !important; /* behind the nav-inner (which uses z-index:2) */
}

/* Ensure wrappers and containers are transparent on the resume so the body gradient
   remains visible between content and footer. */
.page-resume .container,
.page-resume .resume-page {
  background: transparent !important;
}


/* -----------------------------
   Interactions & Accessibility
   ----------------------------- */
/* Base transition for interactive things */
button, a, .btn, .nav a, .overlay-nav a, .project, .card, .feature-card, .skills-list li, .theme-toggle, .nav-toggle {
  transition: transform var(--motion-fast) cubic-bezier(.2,.9,.2,1),box-shadow var(--motion-fast) ease,background-color var(--motion-fast) ease,opacity var(--motion-fast) ease;
  will-change: transform, box-shadow, opacity;
}

@media (prefers-reduced-motion: reduce){
  button, a, .btn, .nav a, .overlay-nav a, .project, .card, .feature-card, .skills-list li { transition: none; }
}

@media (hover: hover) and (pointer: fine){
  .btn:hover{ transform: translateY(-3px); box-shadow: var(--elevation-shadow); }
  .btn:active{ transform: translateY(-1px) scale(.995); box-shadow: 0 6px 18px rgba(2,6,23,0.06); }
  .nav a:hover{ transform: translateY(-2px); color: var(--text); }
  .overlay-nav a:hover{ transform: scale(1.02); filter:brightness(1.03); }
  .project:hover{ transform: translateY(-8px); box-shadow: 0 20px 40px rgba(2,6,23,0.12); }
  .feature-card:hover{ transform: translateY(-6px); box-shadow: 0 18px 36px rgba(2,6,23,0.10); }
  .skills-list li:hover{ transform: translateY(-3px); background: rgba(0,0,0,0.04); }
}

:focus{outline:none}
.btn:focus-visible, .nav a:focus-visible, .overlay-nav a:focus-visible, .theme-toggle:focus-visible, .nav-toggle:focus-visible{box-shadow: 0 0 0 4px rgba(10,132,255,0.12);border-radius:8px}

/* small utility */
.muted{color:var(--muted2)}

/* Responsive layout adjustments */
@media (max-width:900px){
  .hero-inner{flex-direction:column}
  .hero-side{width:100%;display:block}
  .feature-card{width:100%}
  .display-title{font-size:3.25rem}
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;gap:.25rem;background:rgba(255,255,255,0.02);padding:.5rem;border-radius:10px}
  .nav.open{position:absolute;top:64px;right:1rem;left:1rem;background:var(--surface);backdrop-filter:blur(6px);box-shadow:0 10px 30px rgba(2,6,23,0.35)}
}

/* Dark-mode: force homepage name and featured heading to the blue accent for emphasis */
.theme-dark .hero .display-title .accent,
.theme-dark .feature-card h4 {
  /* Dark-mode: use the buttons' light-theme gradient for emphasis */
  background: linear-gradient(90deg,#0a84ff,#5bd4ff);
  -webkit-background-clip:text;
  background-clip:text;
  color: transparent;
}

@media (max-width:600px){
  .container{padding:1rem}
  .hero--large{padding:3rem 0 2rem}
  .hero-bg{display:none}
  .display-title{font-size:2.25rem}
  .lead{font-size:1rem}
  .hero-side{order:2;margin-top:1rem}
  .feature-card{width:100%;padding:.75rem}
  .header-inner{gap:.5rem}
  .nav a{padding:.75rem 1rem;border-radius:8px;font-size:1rem}
  .header-actions{gap:.25rem}
  .theme-toggle{padding:.5rem;border-radius:10px}
}

/* -----------------------------
   About page enhancements
   ----------------------------- */
.about-hero{display:grid;grid-template-columns:1fr 320px;gap:2rem;align-items:start;margin-top:1.25rem}
.about-content{min-width:0}
.about-callout{margin-top:0;padding:0.85rem;border-radius:10px;border:1px solid rgba(0,0,0,0.06);background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));}
.about-callout p{margin:0}

.about-body{display:grid;grid-template-columns:1fr 320px;gap:2rem;margin-top:1.25rem}
.about-side{padding:0}
.about-skills{display:flex;flex-direction:column;gap:.5rem;padding:0;margin:0;list-style:none}
.about-skills li{padding:.45rem .6rem;border-radius:8px;background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2));font-weight:600}

.mini-card{margin-top:1rem;padding:.75rem;border-radius:10px;border:1px solid rgba(0,0,0,0.06);background:linear-gradient(180deg,var(--card-surface),var(--card-surface-2))}
.mini-card h4{margin:0 0 .4rem 0}

@media (max-width:900px){
  .about-hero{grid-template-columns:1fr}
  .about-body{grid-template-columns:1fr}
}

/* Focus outlines for keyboard users */
.nav a:focus, .theme-toggle:focus, .nav-toggle:focus, .btn:focus{outline:2px solid rgba(0,0,0,0.08);outline-offset:2px}