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

:root {
  --bg-dark: #020817;
  --bg-deep: #061127;
  --text-light: #f8fafc;
  --muted: #cbd5e1;
  --primary: #22c55e;
  --primary-dark: #16a34a;
  --secondary: #2563eb;
  --card-bg: rgba(10, 22, 45, 0.72);
  --border: rgba(255, 255, 255, 0.08);
  --footer-bg: #07111f;
  --white: #ffffff;

  --nav-bg: rgba(12, 18, 32, 0.55);
  --nav-border: rgba(255, 255, 255, 0.06);
  --icon-bg: rgba(255, 255, 255, 0.08);
  --icon-border: rgba(255, 255, 255, 0.1);
  --brand-sub: rgba(231, 238, 252, 0.72);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text-light);
  line-height: 1.5;
  overflow-x: hidden;
  background:
    radial-gradient(900px 500px at 50% 0%, rgba(34, 197, 94, 0.14), transparent 65%),
    radial-gradient(700px 500px at 15% 30%, rgba(99, 102, 241, 0.12), transparent 60%),
    radial-gradient(700px 500px at 85% 35%, rgba(34, 197, 94, 0.1), transparent 60%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 55%, #040711 100%);
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button,
input {
  font: inherit;
}

.container {
  width: min(1180px, 92%);
  margin: 0 auto;
}

/* =========================
   Navbar
========================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--nav-border);
}

.nav-wrapper {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  position: relative;
}

.nav-left {
  display: flex;
  align-items: center;
  min-width: 0;
}

.nav-right {
  display: flex;
  align-items: center;
}

.nk-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.nk-logo-ring {
  width: 52px;
  height: 52px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 50%, rgba(34, 197, 94, 0.25), rgba(34, 197, 94, 0.05) 55%, transparent 70%),
    rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(34, 197, 94, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 0 0 6px rgba(34, 197, 94, 0.08),
    0 10px 30px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  flex-shrink: 0;
}

.nk-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.45));
}

.nk-brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.1;
}

.nk-brand-title {
  font-weight: 900;
  letter-spacing: 0.2px;
  font-size: 15px;
  line-height: 1.1;
  color: #ffffff;
  white-space: nowrap;
}

.nk-brand-sub {
  font-size: 12px;
  color: var(--brand-sub);
  margin-top: 2px;
  white-space: nowrap;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--icon-border);
  background: var(--icon-bg);
  color: #ffffff;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 0.25s ease;
  flex-shrink: 0;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.14);
}

.menu-toggle i {
  font-size: 18px;
}

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

.nav-links a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 999px;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-links a.active {
  color: #ffffff;
  background: rgba(34, 197, 94, 0.16);
  border: 1px solid rgba(34, 197, 94, 0.28);
}

/* =========================
   Hero
========================= */
.hero {
  position: relative;
  min-height: calc(100vh - 84px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(2, 8, 23, 0.62), rgba(2, 8, 23, 0.76)),
    url("https://images.unsplash.com/photo-1500937386664-56d1dfef3854?auto=format&fit=crop&w=1600&q=80")
      center center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.18), transparent 30%),
    radial-gradient(circle at 80% 25%, rgba(34, 197, 94, 0.18), transparent 28%),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

.hero-bg-shapes .blur {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 1;
  pointer-events: none;
}

.blur-one {
  width: 240px;
  height: 240px;
  background: rgba(34, 197, 94, 0.18);
  top: 18%;
  left: 12%;
}

.blur-two {
  width: 280px;
  height: 280px;
  background: rgba(37, 99, 235, 0.16);
  bottom: 15%;
  right: 12%;
}

.blur-three {
  width: 180px;
  height: 180px;
  background: rgba(14, 165, 233, 0.12);
  top: 38%;
  right: 35%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 920px;
  padding: 70px 0;
}

.hero-badge {
  display: inline-block;
  padding: 10px 18px;
  margin-bottom: 22px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.16);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #dcfce7;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4.3rem);
  line-height: 1.15;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 22px;
}

.hero h1 span {
  display: block;
}

.hero p {
  max-width: 820px;
  margin: 0 auto 34px;
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.88);
}

.hero-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  min-width: 190px;
  padding: 15px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  transition: 0.3s ease;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 14px 35px rgba(34, 197, 94, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(34, 197, 94, 0.32);
}

/* =========================
   Info Strip
========================= */
.info-strip {
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 30%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.12), transparent 30%),
    #051225;
  padding: 70px 0;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.info-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 197, 94, 0.25);
}

.info-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: #ffffff;
}

.info-card p {
  color: #cbd5e1;
  font-size: 15px;
  line-height: 1.75;
}

/* =========================
   Footer
========================= */
.footer {
  background: var(--footer-bg);
  color: #fff;
  padding-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
  gap: 28px;
}

.footer-col h3 {
  font-size: 22px;
  margin-bottom: 14px;
  color: #ffffff;
}

.footer-col h4 {
  font-size: 17px;
  margin-bottom: 16px;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.4px;
}

.footer-col p,
.footer-col a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 10px;
  display: block;
}

.footer-col a {
  transition: all 0.25s ease;
}

.footer-col a:hover {
  color: #ffffff;
  transform: translateX(2px);
}

.footer-brand p {
  max-width: 320px;
}

/* Social Icons */
.social-icons {
  display: flex;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.social-icons a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: 0.3s ease;
  margin-bottom: 0;
}

.social-icons a:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* Subscribe Form */
.subscribe-form {
  margin-top: 14px;
}

.subscribe-form input {
  width: 100%;
  padding: 16px 18px;
  border: none;
  outline: none;
  border-radius: 12px;
  margin-bottom: 14px;
  font-size: 16px;
}

.subscribe-form button {
  width: 100%;
  padding: 15px 18px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f9fcd, #357fb6);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s ease;
}

.subscribe-form button:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

/* Footer Bottom */
.footer-bottom {
  padding: 24px 0;
  margin-top: 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.footer-bottom p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.95);
}

/* =========================
   Responsive
========================= */

@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .nav-wrapper {
    min-height: 78px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-right {
    position: static;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    right: 12px;
    left: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 12px;
    border-radius: 18px;
    background: rgba(11, 16, 30, 0.97);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  }

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

  .nav-links a {
    width: 100%;
    border-radius: 12px;
    padding: 12px 14px;
  }

  .hero {
    min-height: auto;
    padding: 90px 0 70px;
  }

  .hero-content {
    padding: 30px 0;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
    max-width: 320px;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .container {
    width: min(100%, 92%);
  }

  .nav-wrapper {
    min-height: 72px;
  }

  .nk-logo-ring {
    width: 46px;
    height: 46px;
  }

  .nk-logo {
    width: 30px;
    height: 30px;
  }

  .nk-brand-title {
    font-size: 14px;
  }

  .nk-brand-sub {
    font-size: 11px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 15px;
    line-height: 1.7;
  }

  .hero-badge {
    font-size: 12px;
    padding: 8px 14px;
  }

  .info-strip {
    padding: 50px 0;
  }

  .info-card {
    padding: 22px 18px;
  }

  .footer {
    padding-top: 45px;
  }

  .footer-col p,
  .footer-col a {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .nav-wrapper {
    gap: 12px;
  }

  .nk-brand {
    gap: 10px;
  }

  .nk-brand-sub {
    display: none;
  }

  .nk-brand-title {
    font-size: 13px;
  }

  .hero {
    padding: 80px 0 60px;
  }

  .hero h1 {
    font-size: 1.8rem;
    line-height: 1.2;
  }

  .hero p {
    font-size: 14px;
    margin-bottom: 28px;
  }

  .btn {
    min-width: 100%;
    padding: 14px 20px;
    font-size: 15px;
  }

  .info-card h3 {
    font-size: 19px;
  }

  .footer-col h3 {
    font-size: 20px;
  }

  .footer-col h4 {
    font-size: 16px;
  }

  .subscribe-form input,
  .subscribe-form button {
    font-size: 15px;
    padding: 14px 16px;
  }
}