/*
  Mandar Joglekar — personal site
  Structure: Direction A (variation-7-merged.html) — sidebar, scroll-spy nav.
  Visual language: Direction B (Portfolio - Glass Theme Gallery.dc.html) —
  glass cards over a radial-gradient mesh, dual-accent color themes.
  See CLAUDE_CODE_BRIEF.md for the structural brief this deviates from on
  visual treatment (that brief specified a flat, zero-shadow sage palette;
  the approved plan chose the glass hybrid instead — documented here per
  the brief's own "where you deviate, say why" instruction).
*/

:root{
  /* Structural tokens — theme-independent */
  --sidebar-w: 240px;
  --page-pad: 44px;
  --section-gap: 56px;
  --radius-card: 16px;
  --radius-sm: 12px;
  --radius-pill: 100px;
  --dur-fast: 200ms;
  --dur-med: 300ms;
  --font: 'Space Grotesk', system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Theme tokens — default is 4f Light glass (chosen palette); overridden per data-theme */
  --bg: #eef2f6;
  --glow1: #93c5fd66;
  --glow2: #a7f3d055;
  --glow3: #fde68a44;
  --text: #1e293b;
  --text-sec: #475569;
  --accent: #1d4ed8;
  --accent2: #047857;
  --card-bg: rgba(255,255,255,.6);
  --card-border: rgba(255,255,255,.8);
  --inner-bg: rgba(255,255,255,.55);
  --inner-border: rgba(255,255,255,.8);
  --shadow: 0 6px 20px rgba(30,41,59,.08);
}

/* ---- 8 themes — 4f (Light glass) ships as default; switcher stays live so
   the palette can be swapped quickly across future dev cycles ---- */
[data-theme="4a"]{ --bg:#0a0e14; --glow1:#1e6fae66; --glow2:#0891b255; --glow3:#38bdf833; --text:#e8ecf5; --text-sec:#8b93ab; --accent:#67e8f9; --accent2:#7dd3fc; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4b"]{ --bg:#12100c; --glow1:#b4530933; --glow2:#57534e4d; --glow3:#f59e0b26; --text:#ede8de; --text-sec:#a39c8c; --accent:#fbbf24; --accent2:#fdba74; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4c"]{ --bg:#0a1210; --glow1:#05966933; --glow2:#0369714d; --glow3:#22c55e26; --text:#e6f2ec; --text-sec:#8fa89c; --accent:#6ee7b7; --accent2:#5eead4; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4d"]{ --bg:#0b0c0e; --glow1:#3f465433; --glow2:#2a2f384d; --glow3:#ffffff14; --text:#e8e9ec; --text-sec:#8b8d94; --accent:#e8e9ec; --accent2:#c6c7cc; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4e"]{ --bg:#140b0c; --glow1:#e11d4833; --glow2:#78716c4d; --glow3:#fb718526; --text:#f3e8e9; --text-sec:#ab9294; --accent:#fda4af; --accent2:#fecdd3; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4f"]{ --bg:#eef2f6; --glow1:#93c5fd66; --glow2:#a7f3d055; --glow3:#fde68a44; --text:#1e293b; --text-sec:#475569; --accent:#1d4ed8; --accent2:#047857; --card-bg:rgba(255,255,255,.6); --card-border:rgba(255,255,255,.8); --inner-bg:rgba(255,255,255,.55); --inner-border:rgba(255,255,255,.8); --shadow:0 6px 20px rgba(30,41,59,.08); }
[data-theme="4g"]{ --bg:#101208; --glow1:#65790733; --glow2:#4d453a4d; --glow3:#a3a53a26; --text:#e7e6d9; --text-sec:#9a9a86; --accent:#d9f99d; --accent2:#bef264; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }
[data-theme="4h"]{ --bg:#0c0a0a; --glow1:#b91c1c40; --glow2:#44403c4d; --glow3:#dc262620; --text:#f2ecec; --text-sec:#a89a9a; --accent:#fca5a5; --accent2:#f87171; --card-bg:rgba(255,255,255,.06); --card-border:rgba(255,255,255,.12); --inner-bg:rgba(255,255,255,.05); --inner-border:rgba(255,255,255,.1); --shadow:none; }

*{box-sizing:border-box; margin:0; padding:0}

.skip-link{position:absolute; left:-999px; top:0; background:var(--accent); color:var(--bg); padding:10px 16px; border-radius:0 0 8px 0; z-index:100}
.skip-link:focus{left:0}

html{background:var(--bg)}
body{
  background:var(--bg); color:var(--text); font-family:var(--font);
  font-size:16px; line-height:1.5; -webkit-font-smoothing:antialiased;
  transition:background var(--dur-med) ease, color var(--dur-med) ease;
}
a{color:inherit; text-decoration:none}
ul{list-style:none}
img{max-width:100%; display:block}

a:focus-visible, button:focus-visible, [tabindex]:focus-visible{
  outline:2px solid var(--accent); outline-offset:3px; border-radius:4px;
}

/* Background gradient mesh — fixed, behind everything */
.app{position:relative; display:grid; grid-template-columns:var(--sidebar-w) 1fr; min-height:100vh}
.app::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:0;
  background:
    radial-gradient(circle at 15% 8%, var(--glow1), transparent 55%),
    radial-gradient(circle at 88% 70%, var(--glow2), transparent 50%),
    radial-gradient(circle at 55% 5%, var(--glow3), transparent 45%);
}

/* ---- Glass card primitive ---- */
.glass-card{
  position:relative; z-index:1;
  backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  background:var(--inner-bg); border:1px solid var(--inner-border);
  border-radius:var(--radius-card); box-shadow:var(--shadow);
}

/* ---- Sidebar ---- */
.sidebar{
  position:sticky; top:0; height:100vh; z-index:2;
  display:flex; flex-direction:column; justify-content:space-between;
  padding:32px 20px; gap:24px;
  border-right:1px solid var(--inner-border);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  background:var(--card-bg);
}
.brand{display:flex; align-items:center; gap:10px; font-weight:600; font-size:16px; margin-bottom:28px}
.logo{flex:0 0 auto; border-radius:8px}
.nav{display:flex; flex-direction:column; gap:4px}
.navlink{
  font-size:14px; color:var(--text-sec); padding:10px 12px; border-radius:var(--radius-sm);
  transition:background var(--dur-fast), color var(--dur-fast);
}
.navlink:hover{background:var(--inner-bg); color:var(--text)}
.navlink.is-active{background:var(--inner-bg); color:var(--accent); font-weight:600}

.sidebar-bottom{display:flex; flex-direction:column; gap:18px}

.theme-switcher{display:flex; flex-wrap:wrap; gap:8px}
.theme-swatch{
  width:18px; height:18px; border-radius:50%; background:var(--swatch);
  border:none; cursor:pointer; padding:0; outline-offset:2px;
  transition:transform var(--dur-fast);
}
.theme-swatch:hover{transform:scale(1.15)}
.theme-swatch[aria-pressed="true"]{outline:2px solid var(--text); outline-offset:2px}

.status{font-size:13px; color:var(--text-sec); line-height:1.7}
.status b{color:var(--accent)}

/* ---- Main / hero ---- */
main{position:relative; z-index:1; padding:0 var(--page-pad) 90px; min-width:0}

.hero-grid{
  display:grid; grid-template-columns:1.3fr 0.9fr; gap:40px; align-items:start;
  padding-top:50px; margin-bottom:40px;
}
.eyebrow{font-size:13px; letter-spacing:.02em; color:var(--text-sec); margin-bottom:18px}
h1{font-weight:700; font-size:44px; line-height:1.12; letter-spacing:-.5px; margin-bottom:20px; max-width:720px}
.hero-sub{font-size:17px; line-height:1.65; color:var(--text-sec); max-width:560px; margin-bottom:26px}
.ctas{display:flex; gap:14px}
.btn{padding:13px 24px; border-radius:12px; font-size:13.5px; font-weight:600; transition:transform var(--dur-fast), background var(--dur-fast)}
.btn-primary{backdrop-filter:blur(16px); background:var(--card-bg); border:1px solid var(--card-border); color:var(--text)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-outline{border:1px solid var(--card-border); color:var(--text-sec)}
.btn-outline:hover{color:var(--text); border-color:var(--accent)}

.headshot-card{overflow:hidden; padding:0}
.headshot-caption{padding:10px 14px; font-size:13px; color:var(--text-sec); display:flex; justify-content:space-between}
.headshot-caption b{color:var(--accent)}

/* ---- Image slots (real, working placeholders — never invented photography) ---- */
.image-slot{
  aspect-ratio:var(--ar, 16/9); width:100%; display:flex; align-items:center; justify-content:center;
  text-align:center; color:var(--text-sec); font-size:12px; line-height:1.5;
  background:
    repeating-linear-gradient(135deg, var(--inner-bg), var(--inner-bg) 10px, transparent 10px, transparent 20px),
    var(--inner-border);
  border-radius:inherit;
}
.image-slot[data-aspect="4/5"]{ --ar: 4/5 }
.image-slot[data-aspect="16/9"]{ --ar: 16/9 }
.image-slot[data-aspect="16/10"]{ --ar: 16/10 }
.image-slot img{width:100%; height:100%; object-fit:cover; border-radius:inherit}
.image-slot-sm{border-radius:var(--radius-sm) var(--radius-sm) 0 0}

/* ---- Client-logo strip ---- */
.client-strip{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;
  padding:20px 0; margin-bottom:32px; border-top:1px solid var(--inner-border); border-bottom:1px solid var(--inner-border);
}
.client-strip-label{font-size:11px; letter-spacing:.08em; color:var(--text-sec); text-transform:uppercase}
.client-strip-logos{display:flex; gap:32px; flex-wrap:wrap; font-size:14px; font-weight:600; color:var(--text)}

/* ---- Stat strip ---- */
.stat-strip{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:var(--section-gap)}
.stat{padding:22px}
.stat .num{font-size:26px; font-weight:700; color:var(--accent)}
.stat:nth-child(2n) .num{color:var(--accent2)}
.stat .lbl{font-size:12px; color:var(--text-sec); margin-top:6px}

/* ---- Sections ---- */
.section{padding:var(--section-gap) 0; border-top:1px solid var(--inner-border)}
.section-label{font-size:13px; letter-spacing:.06em; color:var(--accent); text-transform:uppercase; font-weight:600; margin-bottom:28px}

/* ---- Work explorer: list + detail (structural pattern only — see index.html comment) ---- */
.work-explorer{display:grid; grid-template-columns:300px 1fr; gap:20px; align-items:start}

.work-list{display:flex; flex-direction:column; gap:8px}
.work-list-item{
  display:flex; align-items:center; gap:12px; text-align:left; width:100%;
  padding:12px; border-radius:var(--radius-sm); border:1px solid transparent;
  background:transparent; cursor:pointer; transition:background var(--dur-fast), border-color var(--dur-fast);
}
.work-list-item:hover{background:var(--inner-bg)}
.work-list-item[aria-current="true"]{background:var(--inner-bg); border-color:var(--accent)}
.work-list-icon{width:40px; height:40px; flex:0 0 auto; border-radius:8px}
.work-list-text{display:flex; flex-direction:column; gap:2px; min-width:0}
.work-list-title{font-size:14.5px; font-weight:600}
.work-list-teaser{font-size:12px; color:var(--text-sec); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.work-list-arrow{margin-left:auto; color:var(--text-sec); flex:0 0 auto}
.work-list-item[aria-current="true"] .work-list-arrow{color:var(--accent)}

.work-detail{padding:32px; min-width:0}
.work-detail-top{display:flex; align-items:center; gap:12px; margin-bottom:20px}
.work-detail-badge{font-size:11px; letter-spacing:.04em; text-transform:uppercase; color:var(--accent); background:var(--inner-bg); border:1px solid var(--inner-border); padding:5px 10px; border-radius:var(--radius-pill)}
.work-detail-case{font-size:12px; color:var(--text-sec)}
.work-detail-mark{margin-left:auto; font-size:12px; font-weight:700; letter-spacing:.04em; color:var(--text-sec)}
.work-detail-title{font-size:22px; font-weight:600; line-height:1.3; margin-bottom:14px}
.work-detail-desc{font-size:14px; color:var(--text-sec); line-height:1.6}
.work-detail-desc a{color:var(--accent); text-decoration:underline; text-underline-offset:2px}
.work-detail-divider{border-top:1px solid var(--inner-border); margin:22px 0}
.work-detail-eyebrow{font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); font-weight:600; margin-bottom:10px}
.work-detail-how p{font-size:13.5px; color:var(--text-sec); line-height:1.65}
.work-detail-bottom{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px}
.work-detail-tags{display:flex; gap:8px; flex-wrap:wrap}
.work-detail-tag{font-size:11.5px; color:var(--text); background:var(--inner-bg); border:1px solid var(--inner-border); padding:5px 12px; border-radius:var(--radius-pill)}
.work-metric{display:flex; align-items:baseline; gap:8px}
.work-metric-num{font-size:20px; font-weight:700; color:var(--accent)}
.work-metric-lbl{font-size:12.5px; color:var(--text-sec)}

/* ---- Track record ---- */
.track-list{display:flex; flex-direction:column; gap:12px}
.track-item{padding:22px; display:grid; grid-template-columns:130px 1fr; gap:20px}
.track-when{font-size:12.5px; color:var(--accent); font-weight:600}
.track-role{font-weight:600; font-size:16px; margin-bottom:8px}
.track-org{color:var(--accent)}
.track-item p{font-size:13.5px; color:var(--text-sec); line-height:1.6}
.track-item ul{display:flex; flex-direction:column; gap:6px}
.track-item li{font-size:13.5px; color:var(--text-sec); line-height:1.6; padding-left:14px; position:relative}
.track-item li::before{content:"–"; position:absolute; left:0; color:var(--text-sec)}

/* ---- Why work with me ---- */
.why-card{padding:32px}
.why-lede{font-size:16px; line-height:1.7; color:var(--text); max-width:820px; margin-bottom:28px}
.why-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:20px}
.why-item h3{font-size:14.5px; font-weight:600; margin-bottom:8px; color:var(--accent)}
.why-item p{font-size:13px; color:var(--text-sec); line-height:1.6}

/* ---- AI builds ---- */
.card-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
.build-card{overflow:hidden; transition:transform var(--dur-fast)}
.build-card:hover, .build-card:focus-within{transform:translateY(-3px)}
.build-body{padding:16px}
.build-body .tt{font-weight:600; font-size:15px; margin-bottom:6px}
.build-body .tt a{text-decoration:underline; text-underline-offset:2px}
.build-body .ts{font-size:12.5px; color:var(--text-sec)}
.build-status{font-size:11px; font-weight:600; letter-spacing:.03em; text-transform:uppercase; color:var(--text-sec); background:var(--inner-bg); border:1px solid var(--inner-border); padding:3px 8px; border-radius:var(--radius-pill); margin-left:6px; vertical-align:middle}
.build-status-live{color:var(--accent); border-color:var(--accent)}

/* ---- Footer / contact ---- */
footer{text-align:center; padding:64px 0 20px}
footer h2{font-size:30px; font-weight:700; margin-bottom:16px}
.contact-meta{font-size:13.5px; color:var(--text-sec); display:flex; gap:10px; justify-content:center; flex-wrap:wrap}
.contact-meta a{color:var(--accent)}
.legal-disclaimer{font-size:12px; line-height:1.6; color:var(--text-sec); max-width:560px; margin:24px auto 0; opacity:.75}

/* ---- Motion ---- */
[data-reveal]{opacity:0; transform:translateY(14px); transition:opacity var(--dur-med) ease, transform var(--dur-med) ease}
[data-reveal].is-visible{opacity:1; transform:none}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{transition:none; opacity:1; transform:none}
  .btn-primary:hover, .build-card:hover, .build-card:focus-within, .theme-swatch:hover{transform:none}
}

/* ---- Responsive ---- */
@media (max-width: 900px){
  .app{grid-template-columns:1fr; min-width:0}
  .sidebar{position:relative; height:auto; flex-direction:row; align-items:center; padding:16px 20px; min-width:0}
  .sidebar-top{display:flex; align-items:center; gap:16px; min-width:0; flex:1 1 auto}
  .brand{flex:0 0 auto; margin-bottom:0}
  .brand span{display:none} /* keep just the mark at mobile widths so nav gets room to scroll */
  .nav{flex-direction:row; overflow-x:auto; min-width:0; flex:1 1 auto}
  .navlink{flex:0 0 auto; white-space:nowrap}
  /* Theme switcher is a desktop-only control — hidden on mobile rather
     than competing with nav for a ~390px-wide top bar. */
  .sidebar-bottom{display:none}
  .status{display:none}
  .hero-grid{grid-template-columns:1fr}
  h1{font-size:32px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .work-explorer{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr 1fr}
  .card-grid{grid-template-columns:1fr 1fr}
  .track-item{grid-template-columns:1fr}
}
@media (max-width: 480px){
  main{padding:0 20px 60px}
  .stat-strip, .why-grid, .card-grid{grid-template-columns:1fr}
}