:root {
  --bg: #0b0b0f;
  --card: #14141f;
  --border: #26263a;
  --purple: #7c3aed;
  --green: #22c55e;
  --muted: #b5b5d6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #0b0b0f, #050508);
  color: #fff;
}

/* NAV */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.6);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo {
  width: 32px;
}

.nav-right button {
  background: none;
  border: none;
  color: #fff;
  margin-left: 12px;
  font-size: 15px;
  cursor: pointer;
}

.nav-right button:hover {
  color: var(--green);
}

/* PAGES */
.page {
  display: none;
}

.page.active {
  display: block;
}

header {
  text-align: center;
  padding: 50px 20px 30px;
  max-width: 900px;
  margin: auto;
}

header h1 {
  font-size: 2.2rem;
  background: linear-gradient(90deg, var(--purple), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  color: var(--muted);
}

/* SECTIONS */
section {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

.highlight {
  border: 1px solid var(--purple);
  background: linear-gradient(
    135deg,
    rgba(124,58,237,0.15),
    rgba(34,197,94,0.1)
  );
}

.badges span {
  display: inline-block;
  margin: 6px 6px 0 0;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(124,58,237,0.4);
  color: #e9d5ff;
}

.top-builder {
  border: 1px solid var(--green);
  box-shadow: 0 0 20px rgba(34,197,94,0.25);
  position: relative;
}

.top-badge {
  position: absolute;
  top: -10px;
  right: 12px;
  background: var(--green);
  color: #000;
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 6px;
  font-weight: bold;
}

/* FORM */
.form-card label {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
}

input, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f0f18;
  color: #fff;
}

textarea {
  min-height: 100px;
}

.submit-btn {
  margin-top: 10px;
  width: 100%;
  padding: 12px;
  background: linear-gradient(90deg, var(--purple), var(--green));
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: bold;
  cursor: pointer;
  color: #000;
}

.submit-btn:hover {
  opacity: 0.9;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 40px 20px;
  color: #8a8ab0;
  font-size: 14px;
}