/* feedback.css
   Modern responsive feedback form
   Uses system fonts + Inter for nicer typography
*/

:root{
  --bg: #f6f7fb;
  --card: #ffffff;
  --muted: #6b7280;
  --primary: #0f62fe; /* blue */
  --accent: #7c3aed;  /* purple accent */
  --radius: 14px;
  --shadow: 0 6px 24px rgba(17,24,39,0.08);
  --gap: 18px;
  --max-width: 920px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:linear-gradient(180deg, #eef2ff 0%, var(--bg) 40%);
  color:#0f172a;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding:32px 20px;
}

/* center layout */
.page{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:calc(100vh - 64px);
}

/* card */
.card{
  width:100%;
  max-width:var(--max-width);
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:28px;
  border: 1px solid rgba(15,23,42,0.04);
}

/* header */
.card-header h1{
  margin:0 0 6px 0;
  font-weight:700;
  font-size:1.35rem;
  letter-spacing: -0.2px;
}

.card-header .sub{
  margin:0;
  color:var(--muted);
  font-size:0.95rem;
}

/* rows and fields */
.row{
  margin-top:var(--gap);
  display:block;
}

.label{
  display:block;
  font-size:0.88rem;
  color:#111827;
  margin-bottom:8px;
  font-weight:600;
}

/* inputs */
input[type="text"],
input[type="email"],
input[type="tel"],
textarea{
  width:100%;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid rgba(15,23,42,0.08);
  background: #fff;
  font-size:0.96rem;
  outline:none;
  transition:box-shadow .15s, border-color .12s;
}

input:focus, textarea:focus{
  box-shadow: 0 8px 24px rgba(15,23,42,0.06);
  border-color: rgba(124,58,237,0.6);
}

/* two-column layout for larger screens */
.two-col{
  display:grid;
  grid-template-columns: 1fr;
  gap:14px;
}

@media (min-width:720px){
  .two-col{ grid-template-columns: 1fr 1fr; }
}

/* checkbox grid */
.checkbox-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap:10px;
}

@media (min-width:720px){
  .checkbox-grid{ grid-template-columns: repeat(4, minmax(0,1fr)); }
}

.check{
  display:flex;
  align-items:center;
  gap:10px;
  background: linear-gradient(180deg, rgba(124,58,237,0.03), rgba(15,23,42,0.01));
  padding:10px 12px;
  border-radius:10px;
  border:1px solid rgba(15,23,42,0.03);
  font-weight:500;
  font-size:0.92rem;
}

.check input[type="checkbox"]{
  width:18px;
  height:18px;
  accent-color: var(--accent);
}

/* rating stars */
.rating{
  display:inline-flex;
  gap:6px;
  align-items:center;
}

.rating input[type="radio"]{
  display:none;
}

.rating label{
  cursor:pointer;
  font-size:1.45rem;
  line-height:1;
  transition: transform .12s ease, opacity .12s;
  opacity:0.45;
  user-select:none;
}

/* when corresponding radio is checked => highlight star and previous stars */
.rating input[type="radio"]:checked ~ label,
.rating label:hover,
.rating label:hover ~ label{
  transform: translateY(-3px);
  opacity:1;
  color: var(--primary);
}

/* keep footer aligned */
.card-footer{
  display:flex;
  align-items:center;
  gap:16px;
  margin-top:22px;
  justify-content:flex-start;
  flex-wrap:wrap;
}

.btn{
  background: linear-gradient(90deg, var(--primary), #5b8cff);
  color:#fff;
  border:none;
  padding:12px 18px;
  border-radius:10px;
  font-weight:600;
  cursor:pointer;
  box-shadow: 0 8px 24px rgba(15,23,42,0.08);
}

.btn:active{ transform: translateY(1px); }
.btn:focus{ outline:3px solid rgba(15,99,255,0.15); }

/* hint text */
.hint{
  color:var(--muted);
  font-size:0.9rem;
  margin:0;
}

/* responsiveness tweak */
@media (max-width:420px){
  .card{ padding:18px; border-radius:12px; }
  .checkbox-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); gap:8px; }
}