/* Neptun PowerUp! NG — projektoldal */
:root {
  --navy: #1b2a5e;
  --blue: #2b6cb0;
  --blue-dark: #235a94;
  --green: #2f9e44;
  --amber: #f08c00;
  --bg: #f6f8fd;
  --card: #ffffff;
  --text: #212842;
  --muted: #5a6482;
  --border: #dde4f2;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.25; }

.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* --- fejléc --- */
.topbar {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 10px rgba(27, 42, 94, .25);
}
.topbar .container {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 56px;
  flex-wrap: wrap;
  padding-top: 6px;
  padding-bottom: 6px;
}
.brand { font-weight: 700; font-size: 18px; color: #fff; text-decoration: none; white-space: nowrap; }
.brand span { color: #8fd3ff; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; }
.topbar nav a {
  color: #dfe7ff;
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 15px;
}
.topbar nav a:hover { background: rgba(255, 255, 255, .12); color: #fff; }

/* --- hero --- */
.hero { text-align: center; padding: 64px 0 40px; }
.hero h1 { font-size: clamp(30px, 5vw, 44px); margin: 0 0 10px; color: var(--navy); }
.hero .tagline { font-size: clamp(17px, 2.5vw, 21px); color: var(--muted); margin: 0 auto 26px; max-width: 620px; }
.hero .cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.button {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 10px;
  border: 0;
  font-size: 17px;
  cursor: pointer;
  transition: background .15s;
}
.button:hover { background: var(--blue-dark); }
.button--big { font-size: 19px; padding: 16px 34px; }
.button--ghost { background: transparent; color: var(--blue); border: 2px solid var(--blue); }
.button--ghost:hover { background: #eaf1fb; }
.button--green { background: var(--green); }
.button--green:hover { background: #268a3a; }

.notice {
  max-width: 640px;
  margin: 26px auto 0;
  background: #fff8e6;
  border: 1px solid #f2dfa9;
  color: #6b5410;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 15px;
}

/* --- szekciók --- */
section { padding: 44px 0; }
section h2 { font-size: 28px; color: var(--navy); margin: 0 0 22px; }
.section-alt { background: #eef2fb; }

/* funkciókártyák */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.feature .icon { font-size: 26px; }
.feature h3 { margin: 8px 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* --- telepítés --- */
.browser-pills { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.browser-pills button {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 15px;
}
.browser-pills button.active { background: var(--navy); color: #fff; border-color: var(--navy); }

.steps { counter-reset: step; display: flex; flex-direction: column; gap: 14px; }
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px 18px 66px;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 18px;
  top: 18px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { margin: 0 0 6px; font-size: 17px; }
.step p { margin: 6px 0; color: var(--muted); font-size: 15px; }
.step .button { margin-top: 8px; }
.step ol { margin: 8px 0 0; padding-left: 20px; color: var(--muted); font-size: 15px; }
.step ol li { margin: 4px 0; }
.step code {
  background: #eef2fb;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 7px;
  font-size: 14px;
  color: var(--navy);
}
.step[hidden] { display: none; }
.badge-demo {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-size: 12.5px;
  padding: 5px 10px;
  border-radius: 6px;
  margin-top: 6px;
}
.badge-demo b { font-weight: 600; }
.badge-demo .ok { color: #7ee787; }

/* kapcsoló-illusztráció a fejlesztői módhoz */
.toggle-demo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #eef2fb;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--navy);
  margin-top: 6px;
}
.toggle-demo .knob {
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: var(--green);
  position: relative;
  flex: 0 0 auto;
}
.toggle-demo .knob::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
}

/* --- GYIK --- */
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-bottom: 10px;
}
.faq summary { font-weight: 600; cursor: pointer; color: var(--navy); }
.faq details p { color: var(--muted); font-size: 15px; }

/* --- űrlap --- */
form.feedback {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 640px;
}
form.feedback label { font-weight: 600; font-size: 15px; display: block; margin-bottom: 6px; }
form.feedback input[type="text"],
form.feedback input[type="email"],
form.feedback textarea,
form.feedback select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
form.feedback textarea { min-height: 140px; resize: vertical; }
form.feedback .hint { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.form-status { border-radius: 8px; padding: 12px 16px; font-size: 15px; }
.form-status.ok { background: #e9f9ee; border: 1px solid #b7e4c3; color: #1d6b30; }
.form-status.err { background: #fdecec; border: 1px solid #f2bcbc; color: #8f1d1d; }
.type-row { display: flex; gap: 10px; flex-wrap: wrap; }
.type-row input { position: absolute; opacity: 0; }
.type-row label {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 18px;
  cursor: pointer;
  font-weight: 600;
  color: var(--muted);
}
.type-row input:checked + label { background: var(--navy); border-color: var(--navy); color: #fff; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* --- lábléc --- */
footer {
  background: var(--navy);
  color: #c9d2e8;
  padding: 34px 0;
  margin-top: 30px;
  font-size: 14.5px;
}
footer a { color: #8fd3ff; }
footer .cols { display: flex; gap: 40px; flex-wrap: wrap; justify-content: space-between; }
footer p { margin: 6px 0; }

@media (max-width: 640px) {
  .hero { padding-top: 40px; }
  .step { padding-left: 20px; padding-top: 58px; }
  .step::before { top: 14px; left: 20px; }
}