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

:root {
  --black:  #0a0a0a;
  --dark:   #111111;
  --card:   #161616;
  --border: #222222;
  --yellow: #00ff2a;
  --blue:   #3d8fff;
  --white:  #ededed;
  --muted:  #666666;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--black);
  background-image: url('../img/logo.png');
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
  background-size: 75vw auto;
  color: var(--white);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.84);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--yellow); }

.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--yellow);
  color: #000;
  font-weight: 600;
  font-size: 14px;
  padding: 11px 26px;
  border-radius: 6px;
  transition: opacity 0.2s;
}

.btn-main:hover { opacity: 0.88; }

.btn-sec {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
  padding: 11px 26px;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.btn-sec:hover { border-color: #444; }

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  height: 60px;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  text-align: left;
}

.nav-links a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--white); }

.nav-links .nav-cta {
  background: var(--yellow);
  color: #000;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 6px;
  font-size: 13px;
}

.nav-links .nav-cta:hover { color: #000; opacity: 0.88; }

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 60px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}

.hero-inner > p.hero-tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 14px;
  max-width: none;
}

.hero-inner h1 {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 18px;
  max-width: 600px;
}

.hero-inner > p {
  color: var(--muted);
  font-size: 16px;
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.services {
  padding: 90px 0;
  border-top: 1px solid var(--border);
}

.services h2,
.features h2,
.contact h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 32px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
}

.scard {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  transition: border-color 0.2s;
  color: var(--white);
}

.scard:hover { border-color: #333; }

.scard i {
  font-size: 20px;
  color: var(--yellow);
  margin-bottom: 12px;
  display: block;
}

.scard h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.scard p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

.free-note {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--yellow);
  margin-bottom: 32px;
}

.features {
  padding: 90px 0;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.fcard {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.fcard i {
  font-size: 18px;
  color: var(--blue);
  display: block;
  margin-bottom: 12px;
}

.fcard h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.fcard p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

.feedback {
  padding: 90px 0;
  border-top: 1px solid var(--border);
}

.feedback h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 32px;
}

.feedback-wrap {
  position: relative;
}

.feedback-track {
  display: flex;
  gap: 16px;
  overflow: hidden;
  scroll-behavior: smooth;
}

.fbcard {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  flex: 0 0 calc((100% - 32px) / 3);
  min-width: 0;
}

.fb-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.fb-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--dark);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--yellow);
  flex-shrink: 0;
}

.fb-name {
  font-size: 13px;
  font-weight: 600;
}

.fb-date {
  font-size: 11px;
  color: var(--muted);
}

.fbcard p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

.fb-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--white);
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.2s;
  z-index: 5;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
}

.fb-prev {
  left: -14px;
}

.fb-next {
  right: -14px;
}

.fb-arrow:hover {
  border-color: var(--yellow);
}

.contact {
  padding: 90px 0;
  border-top: 1px solid var(--border);
}

.contact > .container > p {
  color: var(--muted);
  margin-bottom: 24px;
  font-size: 15px;
}

.reply-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 14px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 52px 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  height: 34px;
  width: auto;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--muted);
  max-width: 240px;
  line-height: 1.6;
}

.footer-col h5 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 9px;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 12px;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  body { background-size: 95vw auto; }

  .fbcard {
    flex: 0 0 calc((100% - 16px) / 2);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(10, 10, 10, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    z-index: 1000;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }

  .nav-links.open { display: flex; }

  .nav-links li { width: 100%; }

  .nav-links a {
    display: block;
    padding: 12px 24px;
    font-size: 15px;
    width: 100%;
  }

  .nav-links .nav-cta {
    width: calc(100% - 48px);
    margin: 6px 24px;
    border-radius: 6px;
    padding: 10px 24px;
    text-align: center;
  }

  .hamburger { display: block; }

  body { background-size: 100vw auto; }

  .fbcard {
    flex: 0 0 100%;
    padding: 20px 44px;
  }

  .fb-arrow {
    width: 30px;
    height: 30px;
    font-size: 11px;
  }

  .fb-prev {
    left: 4px;
  }

  .fb-next {
    right: 4px;
  }

  .footer-top { grid-template-columns: 1fr; }
}