/* =========================================================
   Francois Xavier Ndacyayisenga - Portfolio
   Premium design system · dark (default) + light theme
   Electric-blue / violet / cyan accents · Inter + Manrope
   ========================================================= */

/* ---------- design tokens (dark = default) ---------- */
:root{
  color-scheme:dark;
  --bg:#06090f;
  --surface:#0d1420;
  --surface-2:#121b2b;
  --surface-3:#172236;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --ink:#e7edf6;
  --slate:#93a3ba;
  --muted:#7c8ba3;
  --heading:#fff;
  --blue:#3d8bff;
  --blue-2:#2f6fe4;
  --violet:#8b6cff;
  --cyan:#38d6e0;
  --gold:#f0b740;
  --gold-dark:#d99b1e;
  --navy:#0a1120;
  --danger:#ff6b5e;
  --ok:#34d399;
  --grad-accent:linear-gradient(135deg,var(--blue) 0%,var(--violet) 60%,var(--cyan) 130%);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 34px rgba(0,0,0,.42);
  --shadow-lg:0 30px 70px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(61,139,255,.35),0 18px 44px rgba(61,139,255,.20);
  --header-bg:rgba(6,9,15,.82);
  --card-bg:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  --chip-bg:rgba(255,255,255,.05);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-display:'Manrope','Inter',system-ui,'Segoe UI',sans-serif;
  --container:1160px;
}

/* ---------- light theme ---------- */
[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f6fb;
  --surface:#ffffff;
  --surface-2:#f8fafd;
  --surface-3:#eef2f8;
  --line:rgba(13,27,48,.10);
  --line-strong:rgba(13,27,48,.20);
  --ink:#243247;
  --slate:#5b6a80;
  --muted:#6d7c92;
  --heading:#0d1b30;
  --blue:#2563eb;
  --blue-2:#1d4fd7;
  --violet:#7c5cf0;
  --cyan:#0d94a8;
  --gold:#b45309;
  --navy:#0d1b30;
  --shadow:0 10px 30px rgba(13,27,48,.09);
  --shadow-lg:0 24px 60px rgba(13,27,48,.14);
  --glow:0 0 0 1px rgba(37,99,235,.30),0 14px 36px rgba(37,99,235,.16);
  --header-bg:rgba(244,246,251,.86);
  --card-bg:#ffffff;
  --chip-bg:rgba(13,27,48,.05);
}
[data-theme="light"] body{
  background:
    radial-gradient(1100px 560px at 100% -20%, rgba(124,92,240,.08), transparent 60%),
    radial-gradient(900px 520px at -10% 10%, rgba(37,99,235,.08), transparent 55%),
    var(--bg);
  background-attachment:fixed;
}
[data-theme="light"] h1,[data-theme="light"] h2,[data-theme="light"] h3,
[data-theme="light"] h4,[data-theme="light"] h5{color:var(--heading)}
[data-theme="light"] .hero{
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(37,99,235,.16), transparent 60%),
    radial-gradient(760px 400px at -10% 110%, rgba(124,92,240,.14), transparent 60%),
    linear-gradient(150deg,#f0f4fc 0%,#e8eefb 55%,#e3ebfa 100%);
  color:#243247;
}
[data-theme="light"] .hero h1{
  background:linear-gradient(120deg,#0d1b30 20%,#1d4fd7 90%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
[data-theme="light"] .hero .headline{color:#3b5273}
[data-theme="light"] .hero .lead{color:#44536b}
[data-theme="light"] .hero::after{
  background-image:linear-gradient(rgba(13,27,48,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(13,27,48,.05) 1px,transparent 1px);
}
[data-theme="light"] .hero-cta .btn-outline{border-color:rgba(13,27,48,.35);color:#1d3a6b}
[data-theme="light"] .hero-cta .btn-outline:hover{background:#0d1b30;color:#fff;border-color:#0d1b30}
[data-theme="light"] .hero-card{
  background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,.75));
  border-color:rgba(13,27,48,.14);
}
[data-theme="light"] .hero-photo{border-color:rgba(13,27,48,.16);background:#dde5f3;color:#7a8db0}
[data-theme="light"] .hero-card h3{color:var(--heading)}
[data-theme="light"] .hero-stats div{background:rgba(13,27,48,.05);border-color:rgba(13,27,48,.09)}
[data-theme="light"] .hero-stats strong{background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
[data-theme="light"] .hero-stats span{color:#546482}
[data-theme="light"] .section-dark{
  background:linear-gradient(160deg,#0d1b30,#12294d);color:#d7e2f1;
}
[data-theme="light"] .section-dark h2,[data-theme="light"] .section-dark h3{color:#fff}
[data-theme="light"] .section-alt{background:linear-gradient(180deg,rgba(13,27,48,.03),rgba(13,27,48,.008))}
[data-theme="light"] .card,[data-theme="light"] .skill-group,[data-theme="light"] .timeline-item,
[data-theme="light"] .cert-card,[data-theme="light"] .stat-box{background:var(--card-bg)}
[data-theme="light"] .card h3,[data-theme="light"] .cert-body h3,[data-theme="light"] .timeline-item h3{color:var(--heading)}
[data-theme="light"] .card::before{opacity:1}
[data-theme="light"] .field label{color:var(--heading)}
[data-theme="light"] .field input,[data-theme="light"] .field select,[data-theme="light"] .field textarea{background:#fff}
[data-theme="light"] .filters input[type=search],[data-theme="light"] .filters select{background:#fff}
[data-theme="light"] .skill-chip{background:var(--chip-bg);color:var(--ink)}
[data-theme="light"] .cert-thumb{background:linear-gradient(140deg,#dbe6f8,#c9d9f3)}
[data-theme="light"] .cert-thumb .file-glyph{color:#33507e}
[data-theme="light"] .modal-panel{background:#fff}
[data-theme="light"] .modal-head{background:var(--surface-3)}
[data-theme="light"] .modal-body{background:#eef2f8}
[data-theme="light"] .site-footer{background:#0d1b30;color:#a9bcd6}
[data-theme="light"] .empty-state{background:var(--surface)}
[data-theme="light"] .table-wrap{background:#fff}
[data-theme="light"] .timeline-item::before{background:var(--surface)}
[data-theme="light"] .btn-outline{background:rgba(255,255,255,.5)}
[data-theme="light"] .prose p,[data-theme="light"] .prose ul{color:#3d4c63}
[data-theme="light"] .section-dark .prose p{color:#c3cedd}
[data-theme="light"] .alert-info{background:rgba(37,99,235,.10);color:#1d4fd7;border-color:rgba(37,99,235,.28)}
[data-theme="light"] .chip-public{color:#0a7a52}
[data-theme="light"] .badge-completed{color:#0a7a52}
[data-theme="light"] .badge-ongoing{color:#1d4fd7}
[data-theme="light"] .badge-prototype{color:#92600a}
[data-theme="light"] .badge-concept{color:#6d4fd0}
[data-theme="light"] ::selection{background:rgba(37,99,235,.22);color:#0d1b30}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);
  background:
    radial-gradient(1100px 560px at 100% -20%, rgba(139,108,255,.14), transparent 60%),
    radial-gradient(900px 520px at -10% 10%, rgba(61,139,255,.13), transparent 55%),
    var(--bg);
  background-attachment:fixed;
  line-height:1.65;font-size:16.5px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--blue)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4,h5{font-family:var(--font-display);color:var(--heading);line-height:1.22;margin:0 0 .6em}
h1{font-size:clamp(2rem,4.5vw,3.3rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.15rem);font-weight:800;letter-spacing:-.01em}
h3{font-size:1.2rem;font-weight:700}
h4{font-size:1rem;font-weight:700}
p{margin:0 0 1em}
.container{max-width:var(--container);margin:0 auto;padding:0 22px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--grad-accent);color:#fff;padding:10px 18px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0;color:#fff}
.icon{flex-shrink:0;vertical-align:-.15em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  padding:.72em 1.4em;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1.5px solid transparent;cursor:pointer;transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  font-family:var(--font);line-height:1.3;white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 10px 26px rgba(61,139,255,.28)}
.btn-primary:hover{color:#fff;box-shadow:var(--glow)}
.btn-gold{background:var(--grad-accent);color:#fff;box-shadow:0 10px 26px rgba(61,139,255,.24)}
.btn-gold:hover{color:#fff;box-shadow:var(--glow)}
.btn-outline{border-color:var(--line-strong);color:var(--ink);background:rgba(255,255,255,.02)}
.btn-outline:hover{background:rgba(61,139,255,.14);border-color:var(--blue);color:#fff}
[data-theme="light"] .btn-outline:hover{color:#1d4fd7}
.btn-ghost{background:transparent;color:var(--slate)}
.btn-ghost:hover{background:var(--chip-bg);color:var(--ink);transform:none}
.btn-sm{padding:.45em 1em;font-size:.85rem}
.btn-block{width:100%}
.btn-danger{background:var(--danger);color:#2a0b07}
.btn-danger:hover{background:#ff5747;color:#2a0b07}

/* ---------- header / navigation ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--header-bg);
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:18px}
.brand{display:flex;align-items:center;gap:11px;color:var(--heading)}
.brand:hover{color:var(--heading)}
.brand-mark{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-accent);
  color:#fff;font-family:var(--font-display);font-weight:800;font-size:1.15rem;
  box-shadow:0 8px 22px rgba(61,139,255,.35);
}
.brand-text{font-family:var(--font-display);font-weight:800;font-size:1.05rem;line-height:1.1;display:flex;flex-direction:column;color:var(--heading)}
.brand-text small{font-weight:500;font-size:.68rem;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}
.site-nav ul{list-style:none;display:flex;align-items:center;gap:2px;margin:0;padding:0}
.site-nav a{display:block;padding:.55em .75em;border-radius:8px;font-size:.9rem;font-weight:500;color:var(--ink)}
.site-nav a:hover{background:var(--chip-bg);color:var(--heading)}
.site-nav a.active{color:var(--heading);font-weight:700;background:rgba(61,139,255,.18)}
.site-nav .btn{color:#fff}
.site-nav .btn:hover{color:#fff}
.has-sub{position:relative}
.sub-menu{
  position:absolute;top:100%;left:0;background:var(--surface-2);border:1px solid var(--line-strong);
  border-radius:12px;box-shadow:var(--shadow-lg);min-width:250px;padding:8px;
  display:none;flex-direction:column;gap:2px;z-index:120;
}
.has-sub:hover .sub-menu,.has-sub:focus-within .sub-menu,.has-sub.open .sub-menu{display:flex}
.sub-menu a{padding:.5em .8em;font-size:.9rem;border-radius:8px}
.sub-toggle{
  display:inline-flex;align-items:center;gap:.3em;padding:.55em .75em;border-radius:8px;font-size:.9rem;font-weight:500;
  color:var(--ink);background:none;border:0;cursor:pointer;font-family:inherit;
}
.sub-toggle:hover{background:var(--chip-bg);color:var(--heading)}
.sub-toggle.active{color:var(--heading);font-weight:700;background:rgba(61,139,255,.18)}
.sub-toggle .icon{transition:transform .2s}
.has-sub.open .sub-toggle .icon{transform:rotate(180deg)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{width:24px;height:2.5px;background:var(--heading);border-radius:3px;transition:.25s}
.nav-actions{display:flex;align-items:center;gap:6px}
.theme-toggle{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;
  background:var(--chip-bg);border:1px solid var(--line-strong);color:var(--ink);cursor:pointer;transition:.2s;
}
.theme-toggle:hover{background:rgba(61,139,255,.16);color:var(--heading);transform:translateY(-1px)}
.theme-toggle .icon-moon{display:none}
[data-theme="light"] .theme-toggle .icon-sun{display:none}
[data-theme="light"] .theme-toggle .icon-moon{display:inline-flex}

/* ---------- hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(61,139,255,.34), transparent 60%),
    radial-gradient(760px 400px at -10% 110%, rgba(139,108,255,.28), transparent 60%),
    linear-gradient(150deg,#0a1120 0%,#0c1730 55%,#0f2145 100%);
  color:#e8eef7;padding:clamp(56px,9vw,110px) 0 clamp(40px,6vw,72px);position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.55em;font-size:.78rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
  background:rgba(56,214,224,.10);border:1px solid rgba(56,214,224,.32);
  padding:.45em 1em;border-radius:999px;margin-bottom:1.3rem;
}
[data-theme="light"] .hero-eyebrow{color:#0d94a8;background:rgba(13,148,168,.10);border-color:rgba(13,148,168,.30)}
.hero h1{color:#fff;margin-bottom:.25em;background:linear-gradient(120deg,#fff 20%,#a9d0ff 80%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-tagline{
  font-family:var(--font-display);font-weight:700;font-size:clamp(1.05rem,2.2vw,1.4rem);
  margin:0 0 .7rem;letter-spacing:.01em;
  background:linear-gradient(90deg,var(--blue) 0%,var(--violet) 55%,var(--cyan) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero .headline{font-size:clamp(.95rem,1.6vw,1.1rem);color:#bcd0ea;font-weight:500;margin-bottom:1.1rem;max-width:44rem}
.hero .lead{color:#d4e0f0;max-width:46rem;font-size:1.03rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.9rem}
.hero-social{display:flex;flex-wrap:wrap;gap:10px;margin-top:1.5rem;align-items:center}
.hero-social a{
  display:inline-flex;align-items:center;gap:.45em;font-size:.85rem;font-weight:600;
  color:#bcd0ea;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  padding:.45em .95em;border-radius:999px;transition:.2s;
}
.hero-social a:hover{color:#fff;background:rgba(61,139,255,.22);border-color:var(--blue);transform:translateY(-1px)}
[data-theme="light"] .hero-social a{color:#3b5273;background:rgba(255,255,255,.7);border-color:rgba(13,27,48,.14)}
[data-theme="light"] .hero-social a:hover{color:#1d4fd7}
.scroll-hint{
  display:flex;justify-content:center;margin-top:clamp(28px,4vw,48px);position:relative;z-index:1;
}
.scroll-hint a{
  display:inline-flex;flex-direction:column;align-items:center;gap:4px;
  color:#8fb2e0;font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
}
.scroll-hint a:hover{color:#fff}
.scroll-hint .icon{animation:scrollBounce 2.2s ease-in-out infinite}
@keyframes scrollBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}
.hero-card{
  position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.16);
  border-radius:20px;padding:26px;backdrop-filter:blur(10px);box-shadow:var(--shadow-lg);
}
.hero-card .status-chip{
  position:absolute;top:16px;right:16px;z-index:2;
  display:inline-flex;align-items:center;gap:.45em;font-size:.72rem;font-weight:700;
  color:#5fe3af;background:rgba(10,20,15,.72);border:1px solid rgba(52,211,153,.4);
  padding:.35em .85em;border-radius:999px;backdrop-filter:blur(6px);
}
.hero-card .status-chip::before{content:"";width:7px;height:7px;border-radius:50%;background:#34d399;box-shadow:0 0 8px rgba(52,211,153,.8)}
.hero-photo{
  width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:16px;
  border:2px solid rgba(255,255,255,.22);background:#0c1730;
  display:grid;place-items:center;color:#7f9cc4;font-weight:700;text-align:center;font-size:.85rem;letter-spacing:.08em;
}
.hero-card h3{color:#fff;margin:18px 0 4px;font-size:1.25rem}
.hero-card .role{color:var(--cyan);font-weight:600;font-size:.9rem;margin-bottom:12px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;text-align:center}
.hero-stats div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.09);border-radius:11px;padding:11px 6px}
.hero-stats strong{display:block;color:#fff;font-family:var(--font-display);font-size:1.35rem;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats span{font-size:.7rem;color:#a9c0dd;text-transform:uppercase;letter-spacing:.06em}

/* ---------- sections ---------- */
.section{padding:clamp(52px,7vw,88px) 0}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.022),rgba(255,255,255,.006));border-block:1px solid var(--line)}
.section-dark{background:linear-gradient(160deg,#0b1220,#0e1a30);color:#d7e2f1;border-block:1px solid var(--line)}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{max-width:720px;margin-bottom:2.4rem}
.section-head.center{margin-inline:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:.45em;font-size:.75rem;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);margin-bottom:.7rem;
}
.section-head p{color:var(--slate);font-size:1.03rem}
.section-dark .section-head p{color:#aebfd6}

/* ---------- cards & grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--card-bg);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--grad-accent);opacity:0;transition:opacity .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card h3{margin-bottom:.45rem;color:var(--heading)}
.card .muted,.muted{color:var(--slate);font-size:.94rem}
.card-tag{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  background:rgba(61,139,255,.16);color:#8fc0ff;padding:.3em .8em;border-radius:999px;margin-bottom:.8rem;
  border:1px solid rgba(61,139,255,.28);
}
[data-theme="light"] .card-tag{color:#1d4fd7}
.card-tag.gold{background:rgba(56,214,224,.13);color:var(--cyan);border-color:rgba(56,214,224,.3)}
[data-theme="light"] .card-tag.gold{color:#0d94a8}
.card-tag.navy{background:rgba(139,108,255,.14);color:#b9a6ff;border-color:rgba(139,108,255,.3)}
[data-theme="light"] .card-tag.navy{color:#6d4fd0}
.card-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.card-photo{border-radius:11px;margin:-4px 0 16px;aspect-ratio:16/9;object-fit:cover;width:100%;background:var(--surface-3)}
.badge{display:inline-block;padding:.25em .75em;border-radius:999px;font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.badge-completed{background:rgba(52,211,153,.16);color:#5fe3af;border:1px solid rgba(52,211,153,.3)}
.badge-ongoing{background:rgba(61,139,255,.16);color:#8fc0ff;border:1px solid rgba(61,139,255,.3)}
.badge-prototype{background:rgba(240,183,64,.16);color:#f4cd6e;border:1px solid rgba(240,183,64,.3)}
.badge-concept{background:rgba(139,108,255,.16);color:#b9a6ff;border:1px solid rgba(139,108,255,.3)}
.badge-status{background:rgba(255,255,255,.07);color:var(--slate);border:1px solid var(--line)}
[data-theme="light"] .badge-status{background:var(--chip-bg)}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  background:
    radial-gradient(700px 320px at 90% -20%, rgba(139,108,255,.28), transparent 60%),
    linear-gradient(140deg,#0a1120 0%,#0c1730 100%);
  color:#e7eefa;padding:clamp(40px,6vw,72px) 0;border-bottom:1px solid var(--line);
}
[data-theme="light"] .page-hero{
  background:
    radial-gradient(700px 320px at 90% -20%, rgba(124,92,240,.14), transparent 60%),
    linear-gradient(140deg,#eef2fb 0%,#e6ecf9 100%);
  color:#243247;
}
.page-hero h1{color:#fff;margin-bottom:.3rem}
[data-theme="light"] .page-hero h1{color:var(--heading)}
.page-hero p{color:#b9cbe4;max-width:760px;margin:0;font-size:1.04rem}
[data-theme="light"] .page-hero p{color:#4a5c7a}
.breadcrumb{font-size:.83rem;color:#8fa9cb;margin-bottom:1rem}
.breadcrumb a{color:#bcd0ea}
.breadcrumb a:hover{color:#fff}
[data-theme="light"] .breadcrumb{color:#6d7c92}
[data-theme="light"] .breadcrumb a{color:#3b5273}
[data-theme="light"] .breadcrumb a:hover{color:#1d4fd7}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--grad-accent)}
.timeline-item{position:relative;margin-bottom:26px;background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow)}
.timeline-item::before{
  content:"";position:absolute;left:-31px;top:26px;width:14px;height:14px;border-radius:50%;
  background:var(--surface);border:3.5px solid var(--blue);box-shadow:0 0 0 4px rgba(61,139,255,.18);
}
.timeline-item h3{margin-bottom:.15rem;color:var(--heading)}
.timeline-meta{font-size:.86rem;color:var(--cyan);font-weight:600;margin-bottom:.5rem;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
[data-theme="light"] .timeline-meta{color:#0d94a8}
.timeline-meta .org{color:#8fc0ff}
[data-theme="light"] .timeline-meta .org{color:#1d4fd7}
.timeline-meta .badge{margin-left:auto}

/* ---------- skills ---------- */
.skill-group{background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.skill-group h3{display:flex;align-items:center;gap:.5em}
.skill-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:9px}
.skill-chip{
  background:var(--chip-bg);border:1px solid var(--line-strong);color:var(--ink);
  padding:.4em .95em;border-radius:999px;font-size:.88rem;font-weight:600;
  display:inline-flex;align-items:center;gap:.4em;
}
.skill-chip small{color:var(--slate);font-weight:500}
.meter{height:7px;background:var(--chip-bg);border-radius:99px;overflow:hidden;margin-top:6px}
.meter i{display:block;height:100%;border-radius:99px;background:var(--grad-accent)}

/* ---------- certificate gallery ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;align-items:center}
.filters input[type=search],.filters select{
  padding:.62em 1em;border:1.5px solid var(--line-strong);border-radius:999px;
  font-family:var(--font);font-size:.93rem;background:var(--surface-2);color:var(--ink);min-width:210px;
}
.filters input[type=search]::placeholder{color:var(--muted)}
.filters input[type=search]:focus,.filters select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(61,139,255,.16)}
.filter-btn{
  padding:.5em 1.05em;border-radius:999px;border:1.5px solid var(--line-strong);
  background:transparent;font-size:.87rem;font-weight:600;color:var(--slate);cursor:pointer;transition:.2s;
}
.filter-btn:hover{border-color:var(--blue);color:var(--ink)}
.filter-btn.active{background:var(--grad-accent);border-color:transparent;color:#fff}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.cert-card{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column;
}
.cert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.cert-thumb{aspect-ratio:16/10;background:linear-gradient(140deg,#0c1730,#152b52);display:grid;place-items:center;color:#8fb2e0;overflow:hidden}
.cert-thumb img{width:100%;height:100%;object-fit:cover}
.cert-thumb .file-glyph{font-size:2.6rem;font-weight:800;letter-spacing:.05em;color:#cfe0f7;opacity:.9}
.cert-body{padding:18px 20px;flex:1;display:flex;flex-direction:column;gap:6px}
.cert-body h3{font-size:1.03rem;margin:0;color:var(--heading)}
.cert-issuer{font-size:.86rem;color:#8fc0ff;font-weight:600}
[data-theme="light"] .cert-issuer{color:#1d4fd7}
.cert-date{font-size:.8rem;color:var(--slate)}
.cert-desc{font-size:.88rem;color:var(--slate);margin:.3rem 0 0}
.cert-skills{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px}
.cert-skills span{font-size:.72rem;background:var(--chip-bg);border:1px solid var(--line);padding:.2em .7em;border-radius:99px;color:var(--ink)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;color:var(--slate);
  background:var(--surface);border:1.5px dashed var(--line-strong);border-radius:var(--radius);
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state .icon{width:36px;height:36px;color:var(--muted);opacity:.7}

/* ---------- document viewer modal ---------- */
.modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:18px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(4,8,15,.82);backdrop-filter:blur(4px)}
.modal-panel{
  position:relative;background:var(--surface-2);border:1px solid var(--line-strong);border-radius:16px;width:min(980px,100%);
  max-height:92vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);overflow:hidden;
}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--surface-3)}
.modal-head h3{margin:0;font-size:1rem;color:var(--heading)}
.modal-actions{display:flex;gap:7px;align-items:center}
.modal-body{padding:18px;overflow:auto;background:#0a1220;text-align:center}
.modal-body img{max-width:100%;height:auto;margin:0 auto;border-radius:8px;background:#fff;box-shadow:var(--shadow);transition:transform .18s}
.modal-body iframe{width:100%;height:68vh;border:0;background:#fff;border-radius:8px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px}
.contact-info a{display:flex;gap:11px;align-items:center;padding:.8em 0;border-bottom:1px solid var(--line);color:var(--ink);font-weight:500;word-break:break-word}
.contact-info a:hover{color:var(--cyan)}
.contact-info a .icon{color:var(--cyan)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px;text-align:left}
.field label{display:block;font-size:.85rem;font-weight:700;color:var(--heading);margin-bottom:.4em}
.field input,.field select,.field textarea{
  width:100%;padding:.72em 1em;border:1.5px solid var(--line-strong);border-radius:10px;
  font-family:var(--font);font-size:.95rem;background:var(--surface-3);color:var(--ink);transition:.2s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(61,139,255,.18)}
.field textarea{min-height:150px;resize:vertical}
.field .hint{font-size:.78rem;color:var(--slate);margin-top:.3em}
.hp{position:absolute!important;left:-9999px!important}
.alert{padding:.9em 1.2em;border-radius:11px;font-size:.93rem;margin-bottom:18px;font-weight:500;display:flex;gap:.6em;align-items:flex-start}
.alert-success{background:rgba(52,211,153,.14);color:#7cecb8;border:1px solid rgba(52,211,153,.32)}
.alert-error{background:rgba(255,107,94,.14);color:#ff9b90;border:1px solid rgba(255,107,94,.34)}
.alert-info{background:rgba(61,139,255,.14);color:#9cc4ff;border:1px solid rgba(61,139,255,.32)}

/* ---------- tables (admin + docs) ---------- */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
table.data{width:100%;border-collapse:collapse;font-size:.92rem;color:var(--ink)}
table.data th,table.data td{padding:.8em 1em;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.data th{background:var(--surface-3);color:var(--ink);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;white-space:nowrap}
table.data tr:last-child td{border-bottom:0}
table.data tr:hover td{background:var(--chip-bg)}
.chip{display:inline-block;padding:.2em .7em;border-radius:99px;font-size:.74rem;font-weight:700}
.chip-public{background:rgba(52,211,153,.16);color:#5fe3af}
.chip-restricted{background:rgba(240,183,64,.16);color:#f4cd6e}
.chip-private{background:rgba(255,107,94,.16);color:#ff9b90}
.chip-login{background:rgba(61,139,255,.16);color:#8fc0ff}

/* ---------- CV ---------- */
.light-section{background:#eef1f6;color:#1a2433}
.cv-toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.light-section .cv-toolbar .muted,.light-section .muted{color:#5b6675}
.cv-paper{
  background:#fff;color:#1a2433;max-width:860px;margin:0 auto;border:1px solid #d8dee9;
  box-shadow:var(--shadow-lg);padding:clamp(26px,5vw,54px);border-radius:6px;
}
.cv-paper header{border-bottom:3px solid #12305c;padding-bottom:18px;margin-bottom:22px}
.cv-paper h1{font-size:1.9rem;margin-bottom:.15em;color:#0d1b30}
.cv-paper .cv-headline{color:#1b5fc1;font-weight:600}
.cv-paper .cv-contact{font-size:.87rem;color:#5b6675;margin-top:.5em;display:flex;flex-wrap:wrap;gap:6px 18px}
.cv-paper h2{
  font-size:1rem;text-transform:uppercase;letter-spacing:.1em;color:#0d1b30;
  border-bottom:1.5px solid #e4e8ef;padding-bottom:.35em;margin-top:1.7em;
}
.cv-entry{margin-bottom:1.1em}
.cv-entry .cv-when{font-size:.8rem;color:#a8861d;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.cv-entry h3{font-size:1.02rem;margin:.1em 0;color:#0d1b30}
.cv-entry .cv-org{color:#1b5fc1;font-size:.92rem;font-weight:600}
.cv-entry p{font-size:.92rem;margin:.35em 0 0;color:#3c4656}
.cv-skills-cols{columns:2;column-gap:34px;font-size:.92rem}
.cv-paper a{color:#1b5fc1}
@media print{
  .site-header,.site-footer,.cv-toolbar,.skip-link,.modal,.scroll-hint{display:none!important}
  body{background:#fff;color:#000;font-size:12px}
  .cv-paper{box-shadow:none;border:0;max-width:100%;padding:0}
  .section{padding:0}
  .light-section{background:#fff}
}

/* ---------- footer ---------- */
.site-footer{background:#05080e;color:#a9bcd6;margin-top:0;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:54px 22px 40px}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:1.1rem}
.footer-brand .brand-text{color:#fff}
.footer-mission{font-size:.9rem;line-height:1.7;color:#93a9c8}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.55rem}
.footer-links a{color:#a9bcd6;font-size:.92rem;display:inline-flex;align-items:center;gap:.45em}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:16px 0;font-size:.83rem}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-bottom a{color:#8ba3c4}
.footer-bottom a:hover{color:var(--cyan)}
.footer-social{display:flex;gap:10px;margin-top:1.1rem;flex-wrap:wrap}
.footer-social a{
  display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#a9bcd6;transition:.2s;
}
.footer-social a:hover{color:#fff;background:rgba(61,139,255,.25);border-color:var(--blue);transform:translateY(-2px)}

/* ---------- utilities ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
.text-center{text-align:center}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.mb-1{margin-bottom:.6rem}.mb-2{margin-bottom:1.2rem}.mb-3{margin-bottom:2rem}
.prose p{color:#c3cedd}
.prose ul{color:#c3cedd;padding-left:1.2em}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-box{background:var(--card-bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow)}
.stat-box strong{display:block;font-family:var(--font-display);font-size:1.9rem;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-box span{font-size:.82rem;color:var(--slate);text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:30px}
.pagination a,.pagination span{padding:.45em 1em;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:.9rem;font-weight:600;color:var(--ink)}
.pagination .current{background:var(--grad-accent);color:#fff;border-color:transparent}
.doc-list{display:grid;gap:14px;list-style:none;margin:0;padding:0}
.doc-list li{
  display:flex;align-items:center;gap:14px;background:var(--card-bg);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 18px;box-shadow:var(--shadow);flex-wrap:wrap;
}
.doc-list .doc-icon{color:var(--cyan)}
.doc-list .doc-meta{flex:1;min-width:180px}
.doc-list .doc-meta strong{display:block;color:var(--heading);font-size:.95rem}
.doc-list .doc-meta span{font-size:.8rem;color:var(--slate)}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .scroll-hint .icon{animation:none}
}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .site-nav a,.sub-toggle{padding:.55em .55em;font-size:.87rem}
}
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
  .hero-card{max-width:420px}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;background:var(--surface-2);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);display:none;padding:12px 18px 20px;
  }
  .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav a,.sub-toggle{padding:.75em .8em;font-size:.95rem;width:100%;text-align:left}
  .sub-toggle{justify-content:space-between}
  .sub-menu{position:static;display:flex;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0;background:transparent}
  .has-sub:hover .sub-menu{display:flex}
  .grid-2,.grid-3,.grid-4,.two-col,.contact-grid,.form-row{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .cv-skills-cols{columns:1}
  .nav-actions{margin-left:auto}
}
@media (max-width:560px){
  .grid-4,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  body{font-size:16px}
  .container{padding:0 16px}
  .hero-cta .btn{width:100%}
  .brand-text small{display:none}
}