/* =========================
   Base + Theme
========================= */
:root{
  --bg: #0f1222;
  --surface: rgba(255,255,255,0.08);
  --surface2: rgba(255,255,255,0.12);
  --border: rgba(255,255,255,0.14);
  --text: #f5f7ff;
  --muted: rgba(245,247,255,0.72);
  --accent: #2dd4bf;     /* teal */
  --accent2:#60a5fa;     /* blue */
  --danger:#ef4444;
  --shadow: 0 18px 50px rgba(0,0,0,.35);
  --radius: 18px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color: var(--text);
  background:
    radial-gradient(1000px 500px at 10% 0%, rgba(255,183,3,0.14), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(251,133,0,0.12), transparent 65%),
    radial-gradient(700px 400px at 50% 110%, rgba(99,102,241,0.12), transparent 55%),
    var(--bg);
}

/* =========================
   Navbar
========================= */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;

  display:flex;
  align-items:center;
  gap: 14px;
  padding: 14px 16px;

  background: rgba(10, 14, 20, 0.62);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav b{
  display:flex;
  align-items:center;
  gap:8px;
  font-size: 18px;
  letter-spacing: 0.4px;
  margin-right: auto; /* push links right */
  padding: 6px 10px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.10);
}

.nav a{
  color: var(--text);
  text-decoration:none;
  font-size: 14px;
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.nav a:hover{
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}

.nav a:active{
  transform: translateY(0);
}

/* =========================
   Layout Helpers
========================= */
.title{
  padding: 16px 18px 0;
  margin: 6px 0 10px;
  font-size: 18px;
  letter-spacing: .2px;
}

.card{
  width: min(980px, calc(100% - 32px));
  margin: 16px auto;
  padding: 18px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.06));
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.small{ color: var(--muted); font-size: 13px; }

/* =========================
   Inputs
========================= */
input, textarea, select{
  width:100%;
  margin: 10px 0;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(0,0,0,.22);
  color: var(--text);
  outline: none;
  transition: .2s ease;
}

textarea{ min-height: 92px; resize: vertical; }

input:focus, textarea:focus, select:focus{
  border-color: rgba(45,212,191,.55);
  box-shadow: 0 0 0 4px rgba(45,212,191,.12);
}

/* =========================
   Buttons
========================= */
button{
  border: 0;
  cursor: pointer;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 800;
  letter-spacing: .2px;
  color: #0b1020;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  box-shadow: 0 14px 28px rgba(45,212,191,.18);
  transition: .18s ease;
}

button:hover{ transform: translateY(-1px); filter: brightness(1.02); }
button:active{ transform: translateY(0px) scale(.99); }

button.danger{
  color: #fff;
  background: linear-gradient(135deg, #ef4444 0%, #fb7185 100%);
  box-shadow: 0 14px 28px rgba(239,68,68,.18);
}

/* =========================
   Cart Items (inside #cartBox)
========================= */
#cartBox{
  padding: 16px;
}

#cartBox > div{
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 14px 14px;
  margin: 10px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 14px;
}

#cartBox b{
  font-size: 15px;
}

#cartBox .small{
  display:inline-block;
  margin-top: 4px;
}

/* style the +/- and remove buttons inside cart item */
#cartBox button{
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 900;
  margin-left: 6px;
  color: var(--text);
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: none;
}
#cartBox button:hover{
  background: rgba(255,255,255,.16);
  transform: translateY(-1px);
}
#cartBox button.danger{
  background: rgba(239,68,68,.22);
  border-color: rgba(239,68,68,.32);
}

/* =========================
   Total Card Enhancement
========================= */
.card h3{
  margin: 0 0 10px;
}

#total{
  font-weight: 900;
  font-size: 18px;
  color: #fff;
}

.card:last-of-type{
  position: sticky;
  bottom: 16px;
}

/* message text */
#msg{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,.07);
  border: 1px dashed rgba(255,255,255,.14);
}

/* =========================
   Footer (your classes)
========================= */
footer{
  margin-top: 26px;
  padding: 22px 16px;
  border-top: 1px solid rgba(255,255,255,.10);
  background: rgba(10, 12, 25, 0.55);
  backdrop-filter: blur(14px);
}

.foot{
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
}

.add{
  margin:0;
  color: var(--muted);
  font-weight: 600;
}

.cont{
  margin:0;
  font-size: 18px;
  color: #fff;
  letter-spacing: .4px;
}

/* =========================
   Responsive
========================= */
@media (max-width: 720px){
  .nav{ flex-wrap: wrap; }
  .nav b{ order: 3; width:100%; text-align:center; }
  #cartBox > div{ flex-direction: column; align-items:flex-start; }
  .foot{ flex-direction: column; align-items:flex-start; }
  .card:last-of-type{ position: static; }
}