/* ========================================
   About Page Additions — whoiskay v4
   Uses existing CSS variables from main sheet
   ======================================== */

/* --- Intro for Recruiters --- */
.about-intro{margin-top:var(--s-5);border-top:1px solid var(--line);padding-top:var(--s-5)}
.about-intro-grid{display:grid;grid-template-columns:auto 1fr;gap:var(--s-6);align-items:center;border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(165deg,#121212,#0b0b0b);padding:var(--s-6);position:relative;overflow:hidden}
.about-intro-grid::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 1px #ffffff0d}
.about-intro-grid::after{content:"";position:absolute;top:-60%;right:-20%;width:400px;height:400px;background:radial-gradient(circle,rgba(139,92,246,.06) 0%,transparent 70%);pointer-events:none}
.about-intro-photo-wrap{position:relative;flex-shrink:0}
.about-intro-photo{width:180px;height:180px;border-radius:var(--r-lg);object-fit:cover;border:1px solid var(--line);filter:grayscale(0.2) contrast(1.05);transition:filter var(--dur) var(--ease)}
.about-intro-photo-wrap:hover .about-intro-photo{filter:grayscale(0) contrast(1.05)}
.about-intro-text{display:flex;flex-direction:column;gap:var(--s-3)}
.about-intro-heading{margin:0;font-size:var(--fs-h2);letter-spacing:var(--tracking-tight);background:linear-gradient(135deg,var(--text) 0%,var(--text-muted) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.about-intro-desc{margin:0;color:var(--text-muted);font-size:var(--fs-body);line-height:var(--lh-body);max-width:60ch}
.about-intro-cta{display:flex;flex-wrap:wrap;gap:var(--s-3);margin-top:var(--s-2)}
.about-intro-badge{display:inline-flex;align-items:center;gap:var(--s-2);padding:var(--s-1) var(--s-3);border:1px solid #22c55e40;border-radius:var(--r-pill);background:#22c55e0a;color:#22c55e;font-family:var(--font-mono);font-size:var(--fs-xs);letter-spacing:var(--tracking-label);text-transform:uppercase;width:fit-content}
.about-intro-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#22c55e;animation:statusPulse 2s ease-out infinite}

/* --- Skills --- */
.about-skills{margin-top:var(--s-5);border-top:1px solid var(--line);padding-top:var(--s-5)}
.skills-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--s-3);margin-top:var(--s-4)}
.skill-card{border:1px solid var(--line);border-radius:var(--r-md);background:linear-gradient(165deg,#121212,#0b0b0b);padding:var(--s-4);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);position:relative;overflow:hidden}
.skill-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);opacity:0;transition:opacity var(--dur) var(--ease)}
.skill-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.skill-card:hover::before{opacity:1}
.skill-icon{font-size:1.4rem;margin-bottom:var(--s-3);color:var(--text-muted)}
.skill-name{margin:0 0 var(--s-2);font-size:var(--fs-sm);font-weight:600;letter-spacing:var(--tracking-tight)}
.skill-desc{margin:0;color:var(--text-dim);font-size:var(--fs-xs);line-height:var(--lh-snug)}

/* --- Tools I Use --- */
.about-tools{margin-top:var(--s-5);border-top:1px solid var(--line);padding-top:var(--s-5)}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:var(--s-4);margin-top:var(--s-4)}
.tool-item{display:flex;flex-direction:column;align-items:center;gap:var(--s-2);padding:var(--s-4) var(--s-2);border:1px solid var(--line);border-radius:var(--r-md);background:linear-gradient(165deg,#121212,#0b0b0b);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.tool-item:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.tool-img{width:48px;height:48px;object-fit:contain;filter:grayscale(0.15);transition:filter var(--dur) var(--ease)}
.tool-item:hover .tool-img{filter:grayscale(0)}
.tool-name{font-size:var(--fs-xs);color:var(--text-muted);text-align:center;font-weight:500}

/* --- Built Tools (GitHub) --- */
.about-built-tools{margin-top:var(--s-5);border-top:1px solid var(--line);padding-top:var(--s-5)}
.built-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--s-4);margin-top:var(--s-4)}
.built-tool-card{border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(165deg,#121212,#0b0b0b);padding:var(--s-5);display:flex;flex-direction:column;gap:var(--s-3);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);position:relative;overflow:hidden}
.built-tool-card::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 1px #ffffff0d}
.built-tool-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.built-tool-header{display:flex;align-items:center;gap:var(--s-3)}
.built-tool-icon{width:36px;height:36px;border-radius:var(--r-sm);background:var(--surface-2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.built-tool-icon svg{width:18px;height:18px}
.built-tool-name{margin:0;font-size:var(--fs-md);font-weight:600;letter-spacing:var(--tracking-tight)}
.built-tool-desc{margin:0;color:var(--text-muted);font-size:var(--fs-sm);line-height:var(--lh-body)}
.built-tool-lang{display:inline-flex;align-items:center;gap:var(--s-2);font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--text-dim)}
.built-tool-lang::before{content:"";width:8px;height:8px;border-radius:50%;background:#3572A5}
.built-tool-stats{display:flex;gap:var(--s-4);margin-top:auto;padding-top:var(--s-3);border-top:1px solid var(--line)}
.built-tool-stat{display:flex;align-items:center;gap:var(--s-1);font-size:var(--fs-xs);color:var(--text-dim)}
.built-tool-stat svg{width:14px;height:14px}
.built-tool-link{display:inline-flex;align-items:center;gap:var(--s-2);color:var(--text-muted);font-size:var(--fs-sm);font-weight:500;transition:color var(--dur) var(--ease)}
.built-tool-link:hover{color:var(--text)}
.built-tool-link svg{width:14px;height:14px;transition:transform var(--dur) var(--ease)}
.built-tool-link:hover svg{transform:translateX(2px)}

/* Skeleton loading */
.built-tool-card.skeleton{pointer-events:none}
.skeleton-line{height:14px;background:linear-gradient(90deg,var(--surface-2) 25%,var(--line) 50%,var(--surface-2) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--r-sm)}
.skeleton-line.short{width:60%}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* Responsive */
@media(max-width:640px){
  .about-intro-grid{grid-template-columns:1fr;text-align:center;padding:var(--s-4)}
  .about-intro-photo-wrap{margin:0 auto}
  .about-intro-photo{width:140px;height:140px}
  .about-intro-cta{justify-content:center}
  .about-intro-badge{margin:0 auto}
  .skills-grid{grid-template-columns:repeat(2,1fr)}
  .tools-grid{grid-template-columns:repeat(3,1fr)}
  .built-tools-grid{grid-template-columns:1fr}
}