/* =========================================================
   Puur in IT — styles.css
   Light theme = "Helder"  ·  Dark theme = "Tech"
   ========================================================= */

/* ---------- THEME TOKENS ---------- */
:root{
  --teal:#17b3c0; --teal-dark:#0e8a96; --teal-soft:#e8f8fa;
  --ink:#0f2a2e; --body:#45575b; --line:#e4ebec;
  --bg:#ffffff; --bg-alt:#f6fbfc; --card:#ffffff;
  --header-bg:rgba(255,255,255,.85);
  --btn-text:#ffffff; --legal:#94a6a9;
  --font:'Inter',system-ui,sans-serif; --font-head:'Inter',system-ui,sans-serif;
  --radius:16px; --maxw:1120px;
}
/* Dark mode = the "Tech" look from design 2 */
:root[data-theme="dark"]{
  --teal:#22d3ee; --teal-dark:#7fe9f5; --teal-soft:rgba(34,211,238,.12);
  --ink:#eaf6f8; --body:#9fb6bd; --line:#1c3540;
  --bg:#07121a; --bg-alt:#0c1b25; --card:#0f2028;
  --header-bg:rgba(7,18,26,.72);
  --btn-text:#042029; --legal:#5b7580;
  --font-head:'Space Grotesk',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;background:var(--bg)}
html{scroll-padding-top:84px}
body{font-family:var(--font);color:var(--body);background:transparent;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{font-family:var(--font-head);color:var(--ink);line-height:1.2;font-weight:800;letter-spacing:-0.02em}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:88px 0}

/* Decorative grid background (dark mode only) */
.grid-bg{position:fixed;inset:0;z-index:-1;pointer-events:none}
:root[data-theme="dark"] .grid-bg{background:
  radial-gradient(circle at 20% -5%,rgba(34,211,238,.12),transparent 45%),
  radial-gradient(circle at 92% 12%,rgba(23,179,192,.08),transparent 42%)}
:root[data-theme="dark"] .grid-bg::after{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(circle at 50% 8%,#000,transparent 70%);
  mask-image:radial-gradient(circle at 50% 8%,#000,transparent 70%)}

/* ---------- NAV ---------- */
header{position:sticky;top:0;z-index:50;background:var(--header-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
/* iOS Safari pre-16.4 ignores backdrop-filter -> fall back to an opaque bar so the hero doesn't bleed under the nav */
@supports not ((-webkit-backdrop-filter:blur(10px)) or (backdrop-filter:blur(10px))){
  header{background:var(--bg)}
}
nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-head);font-weight:800;color:var(--ink);font-size:1.1rem}
.brand img{width:38px;height:auto}
:root[data-theme="dark"] .brand img{filter:drop-shadow(0 0 10px rgba(34,211,238,.45))}
.nav-controls{display:flex;align-items:center;gap:16px}
.navlinks{display:flex;gap:34px;align-items:center}
.navlinks a{font-weight:500;color:var(--body);font-size:.95rem;transition:color .2s}
.navlinks a:hover{color:var(--teal-dark)}
.navlinks a.active{color:var(--teal-dark);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--teal);color:var(--btn-text);padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;transition:transform .15s,background .2s,box-shadow .2s;box-shadow:0 6px 18px rgba(23,179,192,.28)}
.btn:hover{background:var(--teal-dark);transform:translateY(-2px)}
:root[data-theme="dark"] .btn:hover{box-shadow:0 10px 30px -8px rgba(34,211,238,.6)}
.btn.ghost{background:transparent;color:var(--teal-dark);box-shadow:none;border:1.5px solid var(--line)}
.btn.ghost:hover{border-color:var(--teal);background:var(--teal-soft)}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;border:1.5px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;transition:border-color .2s,color .2s}
.theme-toggle:hover{border-color:var(--teal);color:var(--teal-dark)}
.theme-toggle svg{width:19px;height:19px}
.theme-toggle .sun{display:none}.theme-toggle .moon{display:block}
:root[data-theme="dark"] .theme-toggle .moon{display:none}
:root[data-theme="dark"] .theme-toggle .sun{display:block}
.menu-toggle{display:none;background:none;border:0;font-size:1.6rem;color:var(--ink);cursor:pointer;line-height:1}

/* ---------- HERO ---------- */
.hero{padding:96px 24px 64px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--teal-soft);color:var(--teal-dark);font-weight:600;font-size:.82rem;padding:7px 14px;border-radius:999px;margin-bottom:22px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero h1{font-size:clamp(2.3rem,5vw,3.6rem);margin-bottom:20px}
.hero h1 span{color:var(--teal-dark)}
.hero p.lead{font-size:1.18rem;max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:linear-gradient(160deg,var(--card),var(--bg-alt));border:1px solid var(--line);border-radius:24px;padding:36px;box-shadow:0 24px 60px -24px rgba(14,138,150,.35)}
.hero-card img{width:120px;margin:0 auto 18px;display:block}
:root[data-theme="dark"] .hero-card img{filter:drop-shadow(0 0 14px rgba(34,211,238,.4))}
.hero-card .skills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chip{background:var(--card);border:1px solid var(--line);color:var(--body);font-size:.8rem;font-weight:500;padding:6px 12px;border-radius:999px}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;z-index:-1}
.blob.a{width:340px;height:340px;background:var(--teal-soft);top:-80px;right:-60px}

/* ---------- STATS ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0;margin-top:20px}
.stat h3{font-size:2rem;color:var(--teal-dark)}
.stat p{font-size:.9rem}

/* ---------- SECTION HEADING ---------- */
.section-head{max-width:620px;margin:0 auto 54px;text-align:center}
.section-head h2{font-size:clamp(1.8rem,3.5vw,2.5rem);margin-bottom:14px}
.page-head{padding:72px 0 8px}
.page-head h1{font-size:clamp(2rem,4.5vw,3rem);margin-bottom:14px}
.page-head p{font-size:1.12rem;max-width:620px}

/* ---------- CARDS ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -20px rgba(14,138,150,.4);border-color:var(--teal)}
.icon{width:52px;height:52px;border-radius:14px;background:var(--teal-soft);color:var(--teal-dark);display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:1.5rem}
.icon svg{width:27px;height:27px}
.card h3{font-size:1.2rem;margin-bottom:10px}
.card p{font-size:.96rem}

/* ---------- ABOUT ---------- */
.about{background:var(--bg-alt)}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.about-photo{background:linear-gradient(160deg,#17b3c0,#0e8a96);border-radius:24px;aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;padding:40px}
.about-photo img{width:70%;filter:brightness(0) invert(1);opacity:.95}
.about h2{font-size:clamp(1.8rem,3.5vw,2.4rem);margin-bottom:18px}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{background:var(--card);border:1px solid var(--line);padding:8px 14px;border-radius:10px;font-size:.85rem;font-weight:500;color:var(--ink)}

/* ---------- CONTACT PAGE ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-list{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.contact-list a,.contact-list div{display:flex;align-items:center;gap:14px;color:var(--ink);font-size:1.05rem}
.contact-list a:hover{color:var(--teal-dark)}
.contact-list .ci{width:44px;height:44px;flex:none;border-radius:12px;background:var(--teal-soft);color:var(--teal-dark);display:flex;align-items:center;justify-content:center}
.contact-list .ci svg{width:20px;height:20px}
.contact-list small{display:block;color:var(--body);font-size:.82rem;font-weight:400}
.form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.form label{display:block;font-size:.88rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.form .field{margin-bottom:18px}
.form input,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-family:inherit;font-size:.95rem;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--teal)}
.form textarea{min-height:130px;resize:vertical}
.form .btn{width:100%;justify-content:center;border:0;cursor:pointer}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(135deg,#0e8a96,#17b3c0);border-radius:28px;padding:64px 48px;text-align:center;color:#fff;margin:40px auto}
.cta h2{color:#fff;font-size:clamp(1.8rem,3.5vw,2.4rem);margin-bottom:14px}
.cta p{color:rgba(255,255,255,.9);max-width:480px;margin:0 auto 28px;font-size:1.08rem}
.cta .btn{background:#fff;color:#0e8a96;box-shadow:none}
.cta .btn:hover{background:#eafafb}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--line);padding:48px 0 32px}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot-brand{max-width:280px}
.foot-brand .brand{margin-bottom:12px}
.nl-badge{display:inline-block;margin-top:16px;line-height:0;border-radius:19px;transition:opacity .2s}
.nl-badge:hover{opacity:.85}
.nl-badge img{width:150px;max-width:100%;height:auto}
.foot-col h4{color:var(--ink);font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.foot-col a,.foot-col p{font-size:.92rem;margin-bottom:9px;color:var(--body)}
.foot-col a{display:flex;align-items:center;gap:9px}
.foot-col a:hover{color:var(--teal-dark)}
.foot-col .fi{width:16px;height:16px;flex:none;color:var(--teal-dark)}
.legal{border-top:1px solid var(--line);margin-top:36px;padding-top:22px;font-size:.84rem;color:var(--legal);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- RESPONSIVE ---------- */
@media(max-width:860px){
  .hero{padding-top:124px}
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .hero-card{order:-1;max-width:420px;margin-top:18px}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .navlinks{position:fixed;inset:74px 0 auto 0;background:var(--bg);flex-direction:column;padding:20px 24px;gap:18px;border-bottom:1px solid var(--line);display:none}
  .navlinks.open{display:flex}
  .menu-toggle{display:block}
  .nl-badge img{width:120px}
}
@media(max-width:420px){
  .wrap{padding:0 20px}
  .hero{padding-left:20px;padding-right:20px}
}