/* ===== KIOS77 - Modern Dark Neon Marketplace ===== */

:root {
  --bg: #0b0d14;
  --bg-2: #0f1220;
  --bg-3: #141830;
  --surface: rgba(255,255,255,0.04);
  --surface-2: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.14);
  --text: #e8ebf5;
  --text-dim: #9aa3bd;
  --muted: #6b7494;

  --neon-1: #00e5ff;     /* cyan */
  --neon-2: #b14bff;     /* violet */
  --neon-3: #ff3df2;     /* magenta */
  --accent: #ffd43b;     /* yellow brand accent */

  --grad-primary: linear-gradient(135deg, #00e5ff 0%, #b14bff 60%, #ff3df2 100%);
  --grad-text: linear-gradient(90deg, #00e5ff, #b14bff 50%, #ff3df2);

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-1: 0 10px 30px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(177,75,255,0.35);

  --font-display: 'Manrope', system-ui, sans-serif;
  --font-body: 'Space Grotesk', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(900px 600px at 85% -10%, rgba(177,75,255,0.18), transparent 60%),
    radial-gradient(700px 500px at -10% 20%, rgba(0,229,255,0.14), transparent 60%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Utility ===== */
.grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.25);
  color: #b6ecff;
  font-size: 13px;
  letter-spacing: 0.4px;
  font-weight: 500;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  font-weight: 700;
  color: var(--neon-1);
  margin-bottom: 14px;
  text-transform: uppercase;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--grad-primary);
  color: #0b0d14;
  box-shadow: 0 8px 30px rgba(177,75,255,0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 38px rgba(255,61,242,0.45); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn--ghost:hover { background: var(--surface-2); }
.btn--outline { background: transparent; color: var(--text); border-color: rgba(0,229,255,0.45); }
.btn--outline:hover { border-color: var(--neon-1); box-shadow: 0 0 25px rgba(0,229,255,0.25); }
.btn--lg { padding: 15px 28px; font-size: 15px; }

/* ===== Navbar ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(11,13,20,0.7);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__icon { width: 36px; height: 36px; border-radius: 10px; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.5px;
}
.brand__accent {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-size: 14px; font-weight: 500; color: var(--text-dim);
  transition: color .2s ease;
}
.nav__links a:hover { color: var(--text); }
.nav__cta { display: flex; gap: 12px; }
.nav__burger {
  display: none;
  background: transparent; border: 0; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 8px;
}
.nav__burger span {
  width: 24px; height: 2px; background: var(--text); border-radius: 2px;
}

/* ===== Hero ===== */
.hero { position: relative; padding: 90px 0 80px; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(600px 400px at 70% 30%, rgba(0,229,255,0.18), transparent 60%),
    radial-gradient(500px 400px at 20% 70%, rgba(255,61,242,0.16), transparent 60%);
}
.hero__inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin: 18px 0 22px;
}
.lead {
  color: var(--text-dim);
  font-size: 17px;
  max-width: 520px;
  margin-bottom: 32px;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 50px; }
.hero__stats {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 14px; max-width: 520px;
}
.hero__stats > div {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.hero__stats strong {
  font-family: var(--font-display); font-size: 22px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__stats span { font-size: 12px; color: var(--muted); letter-spacing: 0.5px; }

/* Hero visual */
.hero__visual { position: relative; }
.banner-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  box-shadow: var(--shadow-1);
  aspect-ratio: 16/11;
}
.banner-img { width: 100%; height: 100%; object-fit: cover; }
.banner-glow {
  position: absolute; inset: -2px;
  background: var(--grad-primary);
  filter: blur(40px);
  opacity: 0.35;
  z-index: -1;
  border-radius: var(--radius-lg);
}
.float-card {
  position: absolute;
  background: rgba(15,18,32,0.85);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  padding: 12px 16px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow-1);
  animation: floaty 4s ease-in-out infinite;
}
.float-card strong { display: block; font-size: 13px; }
.float-card span { display: block; font-size: 11px; color: var(--muted); }
.float-card--1 { bottom: 20px; left: -20px; }
.float-card--2 { top: 30px; right: -20px; animation-delay: 1.5s; }
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #00ffa3; box-shadow: 0 0 12px #00ffa3;
}
.dot--cyan { background: var(--neon-1); box-shadow: 0 0 12px var(--neon-1); }

@keyframes floaty {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== Trusted bar ===== */
.trusted {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
}
.trusted p { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 12px; letter-spacing: 0.4px; }
.trusted__row {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 18px 32px;
}
.trusted__row span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-dim);
}

/* ===== Sections ===== */
.section { padding: 100px 0; position: relative; }
.section--alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.section__head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section__head--left { text-align: left; margin-left: 0; }
.section__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section__head p { color: var(--text-dim); font-size: 16px; }

/* ===== Grids ===== */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}

/* Feature */
.feature__ico {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.25);
  color: var(--neon-1);
  margin-bottom: 18px;
}
.feature__ico svg { width: 22px; height: 22px; }
.feature h3 { font-family: var(--font-display); font-size: 19px; margin-bottom: 10px; }
.feature p { color: var(--text-dim); font-size: 14.5px; }

/* Category */
.cat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  text-align: left;
  transition: all .3s ease;
  display: block;
}
.cat:hover {
  transform: translateY(-3px);
  border-color: rgba(0,229,255,0.4);
  background: var(--surface-2);
  box-shadow: 0 10px 30px rgba(0,229,255,0.08);
}
.cat__ico {
  font-size: 30px; margin-bottom: 14px;
  filter: drop-shadow(0 0 10px rgba(177,75,255,0.4));
}
.cat h4 { font-family: var(--font-display); font-size: 16px; margin-bottom: 4px; }
.cat p { font-size: 13px; color: var(--muted); }

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 24px;
}
.step {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.step__num {
  font-family: var(--font-display);
  font-size: 44px; font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 18px;
}
.step h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 14.5px; }

/* Review */
.stars { color: var(--accent); letter-spacing: 3px; font-size: 16px; margin-bottom: 14px; }
.review p { color: var(--text); margin-bottom: 22px; font-size: 15px; }
.review__user { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--grad-primary);
  color: #0b0d14;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
}
.review__user strong { display: block; font-size: 14px; }
.review__user span { display: block; font-size: 12px; color: var(--muted); }

/* FAQ */
.faq { max-width: 820px; }
.faq__list { display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: border-color .25s ease, background .25s ease;
}
.faq details[open] { border-color: rgba(0,229,255,0.35); background: var(--surface-2); }
.faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: 22px;
  color: var(--neon-1);
  transition: transform .25s ease;
}
.faq details[open] summary::after { content: '−'; }
.faq details p {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 14.5px;
}

/* Showcase */
.showcase { grid-template-columns: repeat(3, 1fr); }
.show-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
}
.show-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.show-card__img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-3);
}
.show-card__img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,13,20,0) 40%, rgba(11,13,20,0.55) 100%);
  pointer-events: none;
}
.show-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s ease;
}
.show-card:hover .show-card__img img { transform: scale(1.05); }
.show-card__body { padding: 24px 26px 28px; }
.show-card__body h3 { font-family: var(--font-display); font-size: 19px; margin-bottom: 8px; }
.show-card__body p { color: var(--text-dim); font-size: 14.5px; }

/* CTA */
.cta {
  padding: 100px 0;
  position: relative;
  text-align: center;
}
.cta__inner {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding: 60px 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  box-shadow: var(--shadow-glow);
  overflow: hidden;
  isolation: isolate;
}
.cta__bg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.22;
  z-index: -1;
  filter: saturate(1.2);
}
.cta__inner::before {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(11,13,20,0.55), rgba(11,13,20,0.85)),
    linear-gradient(135deg, rgba(0,229,255,0.12), rgba(255,61,242,0.12));
}
.cta__content { position: relative; z-index: 1; }
.cta h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
  margin-bottom: 14px;
}
.cta__content p { color: var(--text-dim); margin-bottom: 30px; font-size: 16px; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 70px 0 30px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer__brand p { color: var(--text-dim); margin-top: 16px; font-size: 14px; max-width: 320px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h5 {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--neon-1);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.footer__col a {
  font-size: 14px; color: var(--text-dim);
  transition: color .2s ease;
}
.footer__col a:hover { color: var(--text); }
.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  color: var(--muted); font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 50px; }
  .grid--3 { grid-template-columns: repeat(2,1fr); }
  .grid--4 { grid-template-columns: repeat(2,1fr); }
  .showcase { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .nav__links {
    display: none;
    position: absolute; top: 70px; left: 0; right: 0;
    flex-direction: column;
    padding: 20px 24px;
    background: rgba(11,13,20,0.96);
    border-bottom: 1px solid var(--border);
  }
  .nav__links.open { display: flex; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

@media (max-width: 560px) {
  .section { padding: 70px 0; }
  .hero { padding: 60px 0; }
  .hero__stats { grid-template-columns: 1fr 1fr; }
  .hero__stats > div:nth-child(3) { grid-column: span 2; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: 1fr 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .float-card { display: none; }
  .cta__inner { padding: 40px 20px; }
}