/* ===== SysTeam Landing — Cyberpunk Neon Theme ===== */

:root {
  --bg-deep: #060a14;
  --bg-base: #0a0e1a;
  --bg-card: rgba(12, 18, 36, 0.85);
  --bg-card-hover: rgba(16, 24, 48, 0.95);

  --cyan: #00e5ff;
  --magenta: #e040fb;
  --purple: #7c4dff;
  --cyan-dim: rgba(0, 229, 255, 0.15);
  --magenta-dim: rgba(224, 64, 251, 0.1);

  --text: #e0e6ed;
  --text-muted: #7a859a;
  --text-heading: #ffffff;

  --border: rgba(0, 229, 255, 0.12);
  --border-glow: rgba(0, 229, 255, 0.35);

  --font-heading: 'Chakra Petch', sans-serif;
  --font-body: 'Outfit', sans-serif;

  --max-w: 1200px;
  --nav-h: 72px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text);
  background: var(--bg-deep);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: var(--font-heading); color: var(--text-heading); font-weight: 600; line-height: 1.2; }

/* ===== UTILITY ===== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section__title {
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section__sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 56px;
  font-size: 1.1rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: .95rem;
  padding: 12px 28px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all .25s ease;
  text-decoration: none;
}
.btn--glow {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border: none;
  color: #000;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.25), 0 0 60px rgba(0, 229, 255, 0.08);
}
.btn--glow:hover {
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.45), 0 0 80px rgba(0, 229, 255, 0.15);
  transform: translateY(-2px);
  color: #000;
}
.btn--ghost { border-color: var(--border-glow); }
.btn--ghost:hover { background: var(--cyan-dim); border-color: var(--cyan); color: #fff; }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }
.btn--sm { padding: 8px 20px; font-size: .85rem; }
.btn--full { width: 100%; }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(6, 10, 20, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo img { height: 44px; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav__links a:not(.btn) {
  font-family: var(--font-heading);
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: .03em;
  transition: color .2s;
}
.nav__links a:not(.btn):hover { color: var(--cyan); }

.lang-toggle {
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid var(--border-glow);
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  letter-spacing: .05em;
  transition: all .2s;
}
.lang-toggle:hover { background: var(--cyan-dim); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: all .3s;
  border-radius: 2px;
}
.nav__hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.active span:nth-child(2) { opacity: 0; }
.nav__hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-h) + 40px) 0 60px;
}
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 70%);
  opacity: .4;
}
.hero__content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, #fff 0%, var(--cyan) 50%, var(--magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}
.hero__sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* Terminal */
.hero__terminal {
  width: 420px;
  background: rgba(8, 12, 24, 0.9);
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0, 229, 255, 0.12), 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: terminal-float 6s ease-in-out infinite;
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: rgba(15, 20, 40, 0.95);
  border-bottom: 1px solid var(--border);
}
.terminal__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal__dot--red { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green { background: #28c840; }
.terminal__title {
  font-family: 'Chakra Petch', monospace;
  font-size: .72rem;
  color: var(--text-muted);
  margin-left: 8px;
}
.terminal__body {
  padding: 16px 18px;
  font-family: 'Chakra Petch', monospace;
  font-size: .8rem;
  line-height: 1.9;
}
.terminal__line { color: var(--text); white-space: nowrap; }
.t-prompt { color: var(--cyan); font-weight: 700; margin-right: 8px; }
.t-output { color: var(--text-muted); }
.t-ok { color: #28c840; }
.terminal__cursor {
  display: inline-block;
  color: var(--cyan);
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
@keyframes terminal-float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-12px) rotate(0.5deg); }
}

/* Floating nodes */
.hero__nodes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__node {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan), 0 0 30px rgba(0, 229, 255, 0.3);
  animation: node-pulse 3s ease-in-out infinite;
}
.hero__node::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 80px; height: 1px;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.4), transparent);
  transform-origin: left center;
}
.hero__node--1 { top: 15%; left: 5%; animation-delay: 0s; }
.hero__node--1::after { transform: rotate(35deg); }
.hero__node--2 { top: 8%; right: 15%; animation-delay: .7s; background: var(--magenta); box-shadow: 0 0 12px var(--magenta); }
.hero__node--2::after { transform: rotate(150deg); background: linear-gradient(90deg, rgba(224, 64, 251, 0.4), transparent); }
.hero__node--3 { bottom: 20%; left: 0; animation-delay: 1.4s; }
.hero__node--3::after { transform: rotate(-20deg); }
.hero__node--4 { bottom: 10%; right: 5%; animation-delay: 2.1s; background: var(--purple); box-shadow: 0 0 12px var(--purple); }
.hero__node--4::after { transform: rotate(200deg); background: linear-gradient(90deg, rgba(124, 77, 255, 0.4), transparent); }
.hero__node--5 { top: 50%; right: 0; animation-delay: .4s; width: 6px; height: 6px; }
.hero__node--5::after { transform: rotate(90deg); }

@keyframes node-pulse {
  0%, 100% { opacity: .6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}

.hero__wolf-glow {
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, rgba(124, 77, 255, 0.08) 40%, transparent 70%);
  filter: blur(60px);
  z-index: -1;
}

/* ===== SERVICES CARDS ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  opacity: 0;
  transition: opacity .3s;
}
.card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 229, 255, 0.08);
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--cyan);
}
.card__icon svg { width: 28px; height: 28px; }
.card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  font-weight: 600;
}
.card p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== TECH STACK ===== */
.tech { background: var(--bg-base); }
.tech__categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tech__group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.tech__group h4 {
  font-size: .85rem;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 14px;
  font-weight: 600;
}
.tech__pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-family: var(--font-heading);
  font-size: .78rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.15);
  color: var(--text);
  transition: all .2s;
  white-space: nowrap;
}
.pill:hover {
  background: rgba(0, 229, 255, 0.12);
  border-color: var(--cyan);
  color: #fff;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}
.pill--cyan {
  background: rgba(0, 229, 255, 0.1);
  border-color: rgba(0, 229, 255, 0.3);
  color: var(--cyan);
}

/* ===== WHY SYSTEAM ===== */
.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why__block {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all .3s;
}
.why__block:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
}
.why__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.why__block h3 { font-size: 1rem; margin-bottom: 10px; }
.why__block p { font-size: .88rem; color: var(--text-muted); }

/* ===== PRODUCTS ===== */
.products { background: var(--bg-base); }
.products__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.products__card::after {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple), var(--magenta));
}
.products__info h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.products__info > p {
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}
.products__features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

/* ===== CONTACT ===== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact__form input,
.contact__form textarea {
  font-family: var(--font-body);
  font-size: .95rem;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.contact__form input:focus,
.contact__form textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08);
}
.contact__form input::placeholder,
.contact__form textarea::placeholder { color: var(--text-muted); }

.contact__direct {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-top: 8px;
}
.contact__item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-muted);
}
.contact__item svg { color: var(--cyan); flex-shrink: 0; }
.contact__item a { color: var(--text); font-weight: 500; }
.contact__item a:hover { color: var(--cyan); }

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.footer__logo { opacity: .6; }
.footer p { font-size: .85rem; color: var(--text-muted); }
.footer__legal { font-size: .75rem; }

/* ===== SCROLL ANIMATIONS ===== */
[data-anim] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}
[data-anim].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .tech__categories { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(6, 10, 20, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav__links.open { display: flex; }
  .nav__hamburger { display: flex; }

  .hero__content { grid-template-columns: 1fr; text-align: center; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__terminal { width: 100%; max-width: 360px; }
  .terminal__body { font-size: .7rem; }
  .hero__nodes { display: none; }

  .services__grid { grid-template-columns: 1fr; }
  .tech__categories { grid-template-columns: 1fr; }
  .why__grid { grid-template-columns: 1fr; }

  .contact__grid { grid-template-columns: 1fr; }
  .products__card { padding: 28px 20px; }
}