:root{
  --bg:#0b1220;
  --card:#0f1a33;
  --text:#eaf0ff;
  --muted:#a9b6d6;
  --line:rgba(255,255,255,.10);
  --brand:#2b6fff;
  --shadow:0 30px 80px rgba(0,0,0,.35);
  --radius:22px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";
  background:
    radial-gradient(1200px 600px at 50% 0%, rgba(43,111,255,.25), transparent 60%),
    radial-gradient(900px 500px at 20% 40%, rgba(0,255,209,.10), transparent 55%),
    var(--bg);
  color:var(--text);
}
a{color:inherit}
.containerX{width:100%; max-width:1100px; margin:0 auto; padding:0 18px}

/* NAV */
.nav{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--line);
  background:rgba(11,18,32,.65);
  backdrop-filter: blur(10px);
}
.navRow{
  display:flex; align-items:center; justify-content:space-between;
  gap:12px; padding:14px 0; flex-wrap:wrap;
}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none}
.logo{
  width:40px; height:40px; border-radius:14px;
  background: linear-gradient(135deg, rgba(43,111,255,.95), rgba(0,255,209,.55));
  box-shadow: 0 18px 45px rgba(0,0,0,.35);
  display:grid; place-items:center;
}
.logo svg{width:20px;height:20px;opacity:.95}
.brandTitle{font-weight:900; letter-spacing:.2px}
.brandTag{display:block; font-size:12px; color:var(--muted); margin-top:2px}

.navLinks{display:flex; align-items:center; gap:14px; flex-wrap:wrap}
.navLinks a{color:var(--muted); text-decoration:none; font-weight:800; font-size:14px}
.navLinks a:hover{color:var(--text)}

/* HERO */
.hero{padding:64px 0 26px 0}
.heroGrid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap:22px;
  align-items:center;
}
@media(max-width:900px){ .heroGrid{grid-template-columns:1fr} }
.h1{font-size:44px; line-height:1.05; margin:0 0 12px 0}
.sub{color:var(--muted); font-size:16px; line-height:1.6; margin:0 0 18px 0}

.ctaRow{display:flex; gap:10px; flex-wrap:wrap}
.btn{
  border:0; cursor:pointer;
  padding:12px 14px;
  border-radius:14px;
  font-weight:900; font-size:14px;
  text-decoration:none;
  display:inline-flex; gap:10px; align-items:center;
  color:var(--text);
  background:var(--brand);
  box-shadow: 0 16px 40px rgba(43,111,255,.30);
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn.secondary{background:rgba(255,255,255,.08); border:1px solid var(--line); box-shadow:none}
.btn:hover{transform: translateY(-1px)}

/* ✅ B OPTION: Premium mini-cards instead of simple pills */
.badges{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap:12px;
  margin-top:16px;
}
@media(max-width:520px){
  .badges{grid-template-columns:1fr}
}

/* badge is now a button too */
.badge{
  padding:14px 14px;
  border-radius:16px;

  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);

  box-shadow:
    0 18px 45px rgba(0,0,0,.26),
    inset 0 1px 0 rgba(255,255,255,.08);

  color: rgba(234,240,255,.92);
  font-weight:900;
  font-size:14px;
  letter-spacing:.2px;

  transition: transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;

  /* button normalize */
  text-align:left;
  width:100%;
  cursor:pointer;
}
.badge:hover{
  transform: translateY(-1px);
  border-color: rgba(43,111,255,.28);
  background: rgba(43,111,255,.10);
  box-shadow:
    0 22px 55px rgba(0,0,0,.30),
    0 0 0 4px rgba(43,111,255,.06),
    inset 0 1px 0 rgba(255,255,255,.08);
}
.badge:focus{ outline:none; box-shadow: 0 0 0 3px rgba(43,111,255,.22), 0 22px 55px rgba(0,0,0,.30); }

/* selected state */
.badge.isSelected{
  border-color: rgba(43,111,255,.55);
  background: rgba(43,111,255,.16);
  box-shadow:
    0 24px 60px rgba(0,0,0,.32),
    0 0 0 4px rgba(43,111,255,.08),
    inset 0 1px 0 rgba(255,255,255,.08);
}

/* ✅ Detail panel under badges (starts hidden) */
.detailPanel{
  margin-top:14px;
  border:1px solid var(--line);
  border-radius:18px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow: var(--shadow);
  padding:16px;
}
.detailPanel.isHidden{display:none;}

.detailGrid{
  display:grid;
  grid-template-columns: 1fr .95fr;
  gap:16px;
  align-items:center;
}
@media(max-width:900px){
  .detailGrid{grid-template-columns:1fr}
}
.detailText h3{
  margin:0 0 8px 0;
  font-size:18px;
  letter-spacing:.2px;
}
.detailText p{
  margin:0;
  color:var(--muted);
  line-height:1.7;
  font-size:14px;
}
.detailMedia{
  display:grid;
  place-items:center;
}
.detailMedia img{
  width:100%;
  height:auto;
  max-height:260px;
  object-fit:contain;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.18);
  transition: opacity .25s ease;
}

/* CARDS */
.card{
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.heroVisual{padding:18px; display:grid; place-items:center; min-height:320px}
.heroVisual img{max-width:100%; height:auto; border-radius:18px; border:1px solid var(--line); background:rgba(0,0,0,.18)}

/* SECTIONS */
.section{padding:38px 0}
.h2{font-size:28px; margin:0 0 14px 0}
.grid3{display:grid; gap:14px; grid-template-columns: repeat(3, 1fr)}
@media(max-width:900px){ .grid3{grid-template-columns:1fr} }
.feature{
  padding:18px;
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(0,0,0,.18);
}
.feature h3{margin:0 0 8px 0; font-size:16px}
.feature p{margin:0; color:var(--muted); line-height:1.6; font-size:14px}

.kpiRow{display:grid; grid-template-columns: repeat(4, 1fr); gap:12px}
@media(max-width:900px){ .kpiRow{grid-template-columns: repeat(2, 1fr)} }
.kpi{padding:16px; border:1px solid var(--line); border-radius:18px; background:rgba(255,255,255,.04)}
.kpi b{display:block; font-size:18px}
.kpi span{color:var(--muted); font-size:12px}

/* FOOTER */
.footer{
  border-top:1px solid var(--line);
  margin-top:30px;
  padding:24px 0;
  color:var(--muted);
  font-size:12px;
}
.footerRow{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.footer a{color:var(--muted); text-decoration:none}
.footer a:hover{color:var(--text)}

/* Language dropdown (premium) */
.langSelect{ position:relative; display:flex; align-items:center; }

.langTrigger{
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  padding:7px 12px;
  border-radius:12px;
  font-weight:900;
  font-size:12px;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:8px;
}
.langTrigger:hover{
  border-color: rgba(43,111,255,.35);
  background: rgba(43,111,255,.10);
}
.langTrigger:focus{ outline:none; box-shadow: 0 0 0 3px rgba(43,111,255,.20); }
.langTrigger .chev{ opacity:.85; transform: translateY(-1px); }

.langMenu{
  position:absolute;
  right:0;
  top: calc(100% + 10px);
  min-width: 180px;
  padding:8px;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(11,18,32,.82);
  backdrop-filter: blur(12px);
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
  display:none;
  z-index:99;
}
.langMenu a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 10px;
  border-radius:12px;
  text-decoration:none;
  color: var(--text);
  font-weight:800;
}
.langMenu a:hover{
  background: rgba(43,111,255,.10);
}
.langMenu a.active{
  background: rgba(43,111,255,.16);
  border:1px solid rgba(43,111,255,.25);
}
.langMenu.isOpen{ display:block; }
/* Fix: Mobile portrait'ta dil menüsü ekrandan taşmasın */
@media (max-width: 520px){
  .langMenu{
    left: 0;
    right: auto;
    max-width: calc(100vw - 36px);
  }
}
/* AquaGuard NAV logo: arka planı kaldır, logoyu büyüt */
.logo{
  background: none !important;
  box-shadow: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  width: 48;  /* istersen 28/32/36 deneyebilirsin */
  height: 48;
  display: grid;
  place-items: center;
}

.logo img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}