/* ═══════════════════════════════════════════════════════════════════════════
   DC ChemTech LLC — Shared Stylesheet
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Titillium+Web:wght@400;600;700&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
  --navy:       #1a3a8a;
  --blue:       #2d5fc4;
  --blue-light: #5b85d6;
  --white:      #ffffff;
  --off-white:  #F4F8FC;
  --gray:       #a0b8d8;
  --dark:       #091630;
  --accent:     #00D4FF;
  --bg:         #2a4a9e;
}

html { background: #2e52aa; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: #fff;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,.2); }
::-webkit-scrollbar-thumb { background: rgba(0,212,255,.4); border-radius:3px; }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 32px;
  border: 1px solid var(--blue-light); border-radius: 8px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff;
  font-family: 'Titillium Web', sans-serif; font-size: 1rem;
  font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  cursor: pointer; transition: .25s; text-decoration: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,212,255,.25);
}
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 28px;
  border: 1px solid rgba(138,170,197,.35); border-radius: 8px;
  background: transparent;
  color: #b8d4f4;
  font-family: 'Titillium Web', sans-serif; font-size: .95rem;
  font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  cursor: pointer; transition: .2s; text-decoration: none;
}
.btn-secondary:hover { background: rgba(255,255,255,.06); }

/* ── NAV ── */
nav {
  position: fixed; top:0; left:0; right:0; z-index:1000;
  height: 70px; padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(38,66,148,.88);
  border-bottom: 1px solid rgba(160,200,255,.2);
  backdrop-filter: blur(14px);
}
.nav-logo { height:46px; }
.nav-links { display:flex; gap:32px; list-style:none; }
.nav-links a { color:#c8dcf8; font-size:.83rem; font-weight:500; text-decoration:none; letter-spacing:.07em; text-transform:uppercase; transition:.2s; }
.nav-links a:hover { color:var(--accent); }
.nav-cta {
  padding: 8px 22px;
  border: 1px solid var(--accent); border-radius:6px;
  background: rgba(0,212,255,.1); color: var(--accent);
  font-family: 'Titillium Web', sans-serif; font-size:.82rem;
  font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  cursor:pointer; transition:.2s; text-decoration:none;
}
.nav-cta:hover { background:rgba(0,212,255,.2); }
.cart-nav-btn {
  position:relative; padding:8px 16px;
  border:1px solid rgba(0,212,255,.35); border-radius:6px;
  background:rgba(0,212,255,.08); color:#c8dcf8;
  font-size:.88rem; cursor:pointer; transition:.2s;
  display:flex; align-items:center; gap:6px;
}
.cart-nav-btn:hover { background:rgba(0,212,255,.18); }
.cart-badge {
  position:absolute; top:-6px; right:-6px;
  background:var(--accent); color:#091630;
  font-family:'Titillium Web',sans-serif; font-size:.65rem; font-weight:700;
  border-radius:50%; width:18px; height:18px;
  display:flex; align-items:center; justify-content:center;
}

/* ── HAMBURGER ── */
.nav-hamburger {
  display:none; flex-direction:column; justify-content:center;
  gap:5px; background:none; border:none; cursor:pointer;
  padding:8px; z-index:1100;
}
.nav-hamburger span {
  display:block; width:24px; height:2px;
  background:#c8dcf8; border-radius:2px;
  transition:transform .3s, opacity .3s;
}
.nav-hamburger.open span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity:0; }
.nav-hamburger.open span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ── MOBILE DROPDOWN MENU ── */
.nav-mobile-menu {
  display:none;
  position:fixed; top:70px; left:0; right:0;
  background:rgba(15,25,70,.98); backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(160,200,255,.15);
  padding:20px 24px 28px;
  flex-direction:column; gap:4px;
  z-index:999;
}
.nav-mobile-menu.open { display:flex; }
.nav-mobile-menu a, .nav-mobile-menu button {
  display:block; width:100%; text-align:left;
  padding:14px 8px;
  border:none; border-bottom:1px solid rgba(160,200,255,.08);
  background:none; color:#c8dcf8;
  font-family:'Titillium Web',sans-serif; font-size:1rem;
  font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  text-decoration:none; cursor:pointer; transition:color .2s;
}
.nav-mobile-menu a:hover, .nav-mobile-menu button:hover { color:var(--accent); }
.nav-mobile-menu .mob-cart-btn {
  margin-top:12px;
  background:rgba(0,212,255,.1);
  border:1px solid rgba(0,212,255,.3) !important;
  border-radius:8px; color:var(--accent);
  text-align:center !important;
}

/* ── SECTION TITLES ── */
.sec-title {
  font-family: 'Titillium Web', sans-serif;
  font-size: 2.2rem; font-weight:700;
  color:#fff; letter-spacing:.04em;
  margin-bottom:12px;
}
.sec-desc { color:#b8d4f4; font-size:.95rem; line-height:1.8; max-width:580px; }

/* ── GLASS CARD ── */
.glass-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(160,200,255,.15);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  padding: 28px;
}

/* ── DISCLAIMER BADGE ── */
.research-badge {
  display:inline-block;
  padding:4px 12px;
  background:rgba(255,100,100,.12);
  border:1px solid rgba(255,100,100,.3);
  border-radius:4px;
  color:#ffaaaa;
  font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
}

/* ── FLASH MESSAGE ── */
#added-flash {
  position:fixed; bottom:90px; left:50%; transform:translateX(-50%);
  background:rgba(0,212,255,.18); border:1px solid rgba(0,212,255,.5);
  color:var(--accent);
  font-family:'Titillium Web',sans-serif; font-size:.85rem;
  font-weight:700; letter-spacing:.07em;
  padding:10px 28px; border-radius:8px;
  backdrop-filter:blur(10px); z-index:9999; pointer-events:none;
  opacity:0; transition:opacity .3s;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding:0 16px; }
  .nav-links { display:none; }
  .nav-right { display:none; }
  .nav-hamburger { display:flex; }
}

@media (max-width: 480px) {
  /* Tighten nav on very small phones */
  nav { height:60px; }
  .nav-logo { height:32px; }

  /* Section padding */
  .sec-title { font-size:1.5rem; }

  /* Mobile menu font size */
  .nav-mobile-menu a,
  .nav-mobile-menu button { font-size:.9rem; padding:12px 8px; }
}