/* ==========================================================================
   Nexu Soluções — design tokens
   ========================================================================== */
:root {
  --bg: #07080a;
  --bg-alt: #0c0f0d;
  --card: #10130f;
  --card-border: rgba(57, 255, 136, 0.14);
  --card-border-hover: rgba(57, 255, 136, 0.45);
  --text: #eef2ee;
  --text-muted: #a4afa8;
  --text-faint: #6b756f;
  --green: #39ff88;
  --green-strong: #00ff9d;
  --green-dim: #0f7a4c;
  --green-ink: #04120a;
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
  --font-head: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
  --ease: cubic-bezier(.16,.84,.44,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; color: var(--text-muted); }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow { max-width: 760px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--green);
  color: var(--green-ink);
  padding: 12px 20px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 12px;
}

.text-glow {
  color: var(--green);
  text-shadow: 0 0 24px rgba(57,255,136,0.45);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 13px 26px;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--green);
  color: var(--green-ink);
  box-shadow: 0 0 0 rgba(57,255,136,0);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(57,255,136,0.28);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,0.18);
}
.btn--ghost:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translateY(-2px);
}
.btn--sm { padding: 10px 18px; font-size: 0.85rem; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }
.btn--full { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7,8,10,0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.header.is-scrolled {
  background: rgba(7,8,10,0.86);
  border-bottom-color: rgba(57,255,136,0.12);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-size: 1.05rem; }
.logo__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--green), var(--green-dim));
  color: var(--green-ink);
  font-weight: 700;
}
.logo__text strong { color: var(--green); font-weight: 700; }

.nav__list { display: flex; gap: 32px; }
.nav__list a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color .2s;
  position: relative;
}
.nav__list a:hover { color: var(--text); }

.header__actions { display: flex; align-items: center; gap: 18px; }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
}
.nav__toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--text);
  transition: transform .3s, opacity .3s;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: 168px 0 96px;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57,255,136,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,136,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black, transparent);
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
}
.hero__glow--1 {
  width: 520px; height: 520px;
  background: var(--green);
  top: -220px; left: 50%;
  transform: translateX(-50%);
}
.hero__glow--2 {
  width: 380px; height: 380px;
  background: #0d6b3f;
  bottom: -160px; right: -80px;
  opacity: 0.4;
}

.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 880px;
}
.hero__title {
  font-size: clamp(2.2rem, 5.5vw, 3.9rem);
  margin-bottom: 20px;
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat__number {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
}
.stat__label {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-top: 4px;
}

/* ==========================================================================
   Trust strip
   ========================================================================== */
.trust {
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: var(--bg-alt);
  padding: 22px 0;
}
.trust__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}
.trust__label { font-size: 0.85rem; color: var(--text-faint); }
.trust__list { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; }
.trust__list li {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
}

/* ==========================================================================
   Sections (generic)
   ========================================================================== */
.section { padding: 110px 0; }
.section--alt { background: var(--bg-alt); }

.section__head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section__head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
.section__lead { font-size: 1.02rem; }

.grid { display: grid; gap: 24px; }
.grid--services { grid-template-columns: repeat(4, 1fr); }
.grid--plans { grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.grid--testimonials { grid-template-columns: repeat(3, 1fr); }

/* ==========================================================================
   Cards / services
   ========================================================================== */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--card-border-hover);
  box-shadow: 0 20px 40px rgba(0,0,0,0.35), 0 0 30px rgba(57,255,136,0.08);
}
.card__icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(57,255,136,0.08);
  color: var(--green);
  margin-bottom: 18px;
}
.card__icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.card p { font-size: 0.92rem; margin: 0; }

/* ==========================================================================
   Why / panel
   ========================================================================== */
.why {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.why__list { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.why__list li { display: flex; gap: 14px; align-items: flex-start; }
.why__icon {
  flex-shrink: 0;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(57,255,136,0.12);
  color: var(--green);
  font-size: 0.8rem;
  margin-top: 2px;
}
.why__list strong { display: block; font-size: 0.98rem; margin-bottom: 2px; }
.why__list p { margin: 0; font-size: 0.9rem; }

.panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}
.panel__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 0.88rem;
  color: var(--text-muted);
}
.badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(57,255,136,0.14);
  color: var(--green);
}
.badge--pending { background: rgba(255,255,255,0.08); color: var(--text-faint); }
.panel__bar {
  margin-top: 18px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}
.panel__bar span {
  display: block;
  width: 78%;
  height: 100%;
  background: linear-gradient(90deg, var(--green-dim), var(--green));
}
.panel__caption {
  margin: 14px 0 0;
  font-size: 0.78rem;
  color: var(--text-faint);
  text-align: center;
}

/* ==========================================================================
   Steps
   ========================================================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.steps__item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 22px;
  position: relative;
}
.steps__number {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--green);
  opacity: 0.9;
  margin-bottom: 14px;
}
.steps__item h3 { font-size: 1rem; margin-bottom: 6px; }
.steps__item p { font-size: 0.88rem; margin: 0; }

/* ==========================================================================
   Plans
   ========================================================================== */
.plan {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.plan--highlight {
  border-color: var(--green);
  background: linear-gradient(180deg, rgba(57,255,136,0.06), var(--card) 40%);
  box-shadow: 0 20px 50px rgba(57,255,136,0.12);
  transform: scale(1.03);
}
.plan__tag {
  position: absolute;
  top: -13px;
  left: 28px;
  background: var(--green);
  color: var(--green-ink);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
}
.plan__name { font-size: 1.2rem; margin-bottom: 6px; }
.plan__desc { font-size: 0.88rem; min-height: 42px; }
.plan__price {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 22px;
}
.plan__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
}
.plan__features li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 22px;
  position: relative;
}
.plan__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonial {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  margin: 0;
}
.testimonial blockquote {
  margin: 0 0 20px;
  font-size: 0.98rem;
  color: var(--text);
  font-style: normal;
}
.testimonial figcaption { display: flex; flex-direction: column; font-size: 0.85rem; }
.testimonial figcaption strong { color: var(--text); }
.testimonial figcaption span { color: var(--text-faint); }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq__item {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-head);
  font-size: 1rem;
  text-align: left;
  padding: 22px 0;
}
.faq__icon {
  flex-shrink: 0;
  color: var(--green);
  font-size: 1.3rem;
  transition: transform .25s;
}
.faq__item[data-open="true"] .faq__icon { transform: rotate(45deg); }
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s var(--ease), padding .3s;
}
.faq__answer p { padding-bottom: 0; font-size: 0.92rem; }
.faq__item[data-open="true"] .faq__answer { padding-bottom: 22px; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta {
  background: radial-gradient(ellipse 80% 100% at 50% 0%, rgba(57,255,136,0.14), transparent 60%), var(--bg-alt);
  border-top: 1px solid rgba(57,255,136,0.12);
  border-bottom: 1px solid rgba(57,255,136,0.12);
  padding: 90px 0;
  text-align: center;
}
.cta__inner h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); max-width: 600px; margin: 0 auto 14px; }
.cta__inner p { max-width: 480px; margin: 0 auto 30px; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact__list { margin: 28px 0; display: flex; flex-direction: column; gap: 18px; }
.contact__list li { display: flex; gap: 14px; align-items: flex-start; }
.contact__icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: rgba(57,255,136,0.1);
  color: var(--green);
  flex-shrink: 0;
}
.contact__list strong { display: block; font-size: 0.85rem; color: var(--text-faint); margin-bottom: 2px; }
.contact__list a { color: var(--text); font-size: 0.98rem; }
.contact__list a:hover { color: var(--green); }
.contact__social { display: flex; gap: 16px; }
.contact__social a {
  font-size: 0.85rem;
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
}
.contact__social a:hover { border-color: var(--green); color: var(--green); }

.contact__form {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.82rem; color: var(--text-faint); }
.field input, .field textarea {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  resize: vertical;
  transition: border-color .2s;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--green);
}
.form__note {
  font-size: 0.85rem;
  color: var(--green);
  min-height: 1.2em;
  margin: 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #050605;
  padding: 80px 0 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer__brand p { font-size: 0.88rem; margin-top: 16px; max-width: 280px; }
.footer__col h4 { font-size: 0.9rem; color: var(--text); margin-bottom: 16px; }
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a, .footer__col span {
  font-size: 0.88rem;
  color: var(--text-muted);
}
.footer__col a:hover { color: var(--green); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--green);
  color: var(--green-ink);
  border: none;
  font-size: 1.1rem;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .3s, transform .3s;
  z-index: 90;
  box-shadow: 0 10px 24px rgba(57,255,136,0.3);
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .grid--services { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .grid--plans { grid-template-columns: 1fr; }
  .plan--highlight { transform: none; }
  .grid--testimonials { grid-template-columns: 1fr; }
  .why { grid-template-columns: 1fr; gap: 40px; }
  .contact { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav { position: fixed; top: 76px; left: 0; right: 0; bottom: 0; background: var(--bg); padding: 24px; transform: translateX(100%); transition: transform .3s var(--ease); overflow-y: auto; }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 4px; }
  .nav__list a { display: block; padding: 16px 4px; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 1.05rem; }
  .nav__toggle { display: flex; }
  .header__actions .btn--sm { display: none; }
  .grid--services { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .trust__inner { flex-direction: column; gap: 14px; }
  .footer__inner { grid-template-columns: 1fr; }
  .hero { padding-top: 140px; }
}