:root{
  --brand1:#2563eb;      /* blue */
  --brand2:#06b6d4;      /* cyan */
  --brand3:#f97316;      /* orange */
  --steel:#b0b7c3;       /* steel gray background */
  --card:#ffffff;
  --text:#0f172a;        /* slate-900 */
  --muted:#475569;       /* slate-600 */
  --border:rgba(15,23,42,.10);
}

body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.25)),
              var(--steel);
  color: var(--text);
}

/* Links */
a{ text-decoration:none; }

/* Top nav */
.navbar{
  background: rgba(255,255,255,.75) !important;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.navbar .navbar-brand strong{ letter-spacing:.2px; }
.navbar .navbar-brand, .navbar a, .navbar .btn{ color: var(--text) !important; }

/* Hero */
.hero{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(15,23,42,.08);
}
.hero .lead{ color: var(--muted); }

/* Cards */
.card{
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 18px;
  box-shadow: 0 10px 26px rgba(15,23,42,.06);
}
.card:hover{
  transform: translateY(-2px);
  transition: .18s ease;
  box-shadow: 0 18px 44px rgba(15,23,42,.10);
}

.small-muted{ color: var(--muted); }

.product-img{
  height: 190px;
  object-fit: cover;
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
}

/* Price */
.price{
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: .2px;
}
.price del{
  color: rgba(71,85,105,.8);
  font-weight: 600;
  margin-right: .35rem;
}

/* Badges */
.badge-soft{
  background: rgba(6,182,212,.14);
  border: 1px solid rgba(6,182,212,.35);
  color: #0e7490;
}

/* Buttons */
.btn-brand{
  background: linear-gradient(90deg, var(--brand1), var(--brand2));
  border: none;
  color: #fff !important;
  box-shadow: 0 10px 20px rgba(37,99,235,.20);
}
.btn-brand:hover{ filter: brightness(1.02); }

.btn-back{
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--text) !important;
}
.btn-back:hover{
  background: rgba(255,255,255,.9);
}

/* Footer */
.footer{
  width: 100%;
  background: rgba(255,255,255,.65);
  border-top: 1px solid var(--border);
}

/* ==============================
   Legacy components merged from styles.css
   (scoped to avoid overriding Bootstrap)
   ============================== */

/* Header bar used by includes/header.php (scoped) */
header.topbar{
  background:#fff;
  border-bottom:1px solid var(--border);
  display:flex;
  gap:16px;
  align-items:center;
  justify-content:space-between;
  padding:12px 18px;
  position:sticky;
  top:0;
  z-index:10;
}
header.topbar .brand-link{
  display:flex;
  gap:12px;
  align-items:center;
  text-decoration:none;
  color:inherit;
}
header.topbar .logo{
  height:64px;            /* increased height for square logo visibility */
  width:auto;             /* keep aspect ratio */
  object-fit:contain;
  border-radius:10px;
  background:#ffffff;
  border:1px solid var(--border);
  display:block;
}
header.topbar .company{font-weight:700;font-size:16px;line-height:1.1}
header.topbar .tagline{font-size:0.85rem;opacity:.85;margin-top:2px;line-height:1.2}

/* Scoped nav so it doesn't affect Bootstrap .nav */
header.topbar nav.nav{display:flex;gap:12px;flex-wrap:wrap}
header.topbar nav.nav a{
  text-decoration:none;
  color:var(--text);
  padding:8px 10px;
  border-radius:10px;
}
header.topbar nav.nav a:hover{background:rgba(255,255,255,.85);border:1px solid var(--border)}

/* Viewer containers (used by material viewer pages) */
.viewer{
  height:75vh;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
  position:relative;
  background:#fff;
}
.viewer iframe{width:100%;height:100%;border:0}

/* PDF.js viewer (used by pdf viewer pages) */
.pdf-toolbar{
  display:flex;
  gap:10px;
  align-items:center;
  padding:10px;
  border-bottom:1px solid var(--border);
  background:#fff;
  position:sticky;
  top:0;
  z-index:2;
}
.pdf-stage{
  height:calc(75vh - 58px);
  overflow:auto;
  background:rgba(255,255,255,.55);
  position:relative;
}
.pdf-canvas{
  display:block;
  margin:18px auto;
  border-radius:12px;
  border:1px solid var(--border);
  box-shadow:0 6px 18px rgba(0,0,0,.05);
}
.wm-overlay{
  position:absolute;
  inset:0;
  pointer-events:none;
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:.06;
  font-size:44px;
  transform:rotate(-20deg);
  user-select:none;
}