:root {
  --bg: #0a0f1e;
  --bg-alt: #0d1426;
  --panel: #111a30;
  --panel-border: #1f2b46;
  --text: #e7ecf7;
  --text-muted: #94a3b8;
  --accent: #3b82f6;
  --accent-2: #22d3ee;
  --accent-grad: linear-gradient(120deg, var(--accent), var(--accent-2));
  --radius: 16px;
  --font-head: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --maxw: 1140px;
}

* { 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;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.2;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.3rem; }

p { color: var(--text-muted); margin: 0 0 16px; }

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(59,130,246,0.14), transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(34,211,238,0.10), transparent 40%),
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: auto, auto, 48px 48px, 48px 48px;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10,15,30,0.7);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.nav.scrolled { border-bottom-color: var(--panel-border); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}
.nav__logo span { color: var(--accent-2); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}
.nav__links a { color: var(--text-muted); transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__cta {
  background: var(--accent-grad);
  color: #04101f !important;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__burger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--accent-grad);
  color: #04101f;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(59,130,246,0.35); }
.btn--ghost {
  border-color: var(--panel-border);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent); }
.btn--outline {
  border-color: var(--panel-border);
  color: var(--text);
  width: 100%;
  text-align: center;
}
.btn--outline:hover { border-color: var(--accent-2); }
.btn--full { width: 100%; text-align: center; border: none; cursor: pointer; }

/* HERO */
.hero { padding: 90px 0 60px; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 14px;
}
.eyebrow.center, h2.center, p.center { text-align: center; }
.grad-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub { font-size: 1.05rem; max-width: 540px; }
.hero__actions { display: flex; gap: 16px; margin: 28px 0; flex-wrap: wrap; }
.hero__trust {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.code-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}
.code-card__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--panel-border);
}
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot--r { background: #ef4444; }
.dot--y { background: #eab308; }
.dot--g { background: #22c55e; }
.code-card__title { margin-left: 10px; font-size: 0.8rem; color: var(--text-muted); }
.code-card__body {
  margin: 0;
  padding: 22px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.85rem;
  overflow-x: auto;
}
.tok-tag { color: #7dd3fc; }
.tok-attr { color: #38bdf8; }
.tok-str { color: #86efac; }
.tok-var { color: #fbbf24; }

/* SECTIONS */
.section { padding: 90px 0; }
.section--alt { background: var(--bg-alt); }
.section__lead { max-width: 640px; margin-left: auto; margin-right: auto; }
.section__lead:not(.center) { margin-left: 0; }

/* ABOUT */
.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.about__cards { display: flex; flex-direction: column; gap: 16px; }
.mini-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.mini-card p { color: var(--text); margin: 0; }
.mini-card__num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--accent-2);
  font-size: 1.4rem;
  flex-shrink: 0;
}

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 44px;
}
.feature {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.feature__icon {
  color: var(--accent-2);
  font-size: 1.3rem;
  margin-bottom: 14px;
}
.feature p { font-size: 0.92rem; margin-bottom: 0; }

/* PRICING */
.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.price-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  position: relative;
  display: flex;
  flex-direction: column;
}
.price-card--featured {
  border-color: var(--accent);
  box-shadow: 0 20px 50px rgba(59,130,246,0.18);
  transform: translateY(-8px);
}
.price-card__badge {
  position: absolute;
  top: -13px;
  left: 26px;
  background: var(--accent-grad);
  color: #04101f;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.price-card__desc { font-size: 0.9rem; }
.price-card__price {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}
.price-card__price span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 4px;
}
.price-card ul { list-style: none; padding: 0; margin: 0 0 20px; flex-grow: 1; }
.price-card li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 7px 0 7px 22px;
  position: relative;
  border-bottom: 1px solid var(--panel-border);
}
.price-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-2);
}
.price-card__maint {
  font-size: 0.82rem;
  color: var(--accent-2);
  margin-bottom: 18px;
}
.pricing__note {
  text-align: center;
  font-size: 0.82rem;
  margin-top: 30px;
}

/* TIMELINE */
.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.timeline__step {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 24px 18px;
}
.timeline__num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--accent);
  font-size: 1.6rem;
}
.timeline__step h4 { margin: 10px 0 8px; font-size: 1rem; }
.timeline__step p { font-size: 0.85rem; margin: 0; }

/* PORTFOLIO */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 44px;
}
.portfolio-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  overflow: hidden;
  padding-bottom: 20px;
  transition: transform .2s ease, border-color .2s ease;
}
.portfolio-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}
.portfolio-card__thumb,
.portfolio-card__placeholder {
  height: 160px;
  background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(34,211,238,0.10));
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 16px;
}
.portfolio-card__thumb--cta { background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(34,211,238,0.10)); }
.portfolio-card h4 { margin: 0 22px 6px; font-size: 1rem; }
.portfolio-card p { margin: 0 22px; font-size: 0.85rem; }
.portfolio-card__link {
  display: block;
  margin: 12px 22px 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-2);
}

/* CONTACT */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact__info { margin-top: 20px; }
.contact__info p { color: var(--text); font-size: 0.95rem; }
.contact-form {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-form label {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.contact-form input,
.contact-form textarea {
  background: var(--bg-alt);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact-form__note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
}

/* FOOTER */
.footer { padding: 40px 0; border-top: 1px solid var(--panel-border); }
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer p { margin: 0; font-size: 0.85rem; }

/* REVEAL ANIMATION */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* WHATSAPP FAB */
.whatsapp-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  z-index: 100;
  transition: transform .2s ease, opacity .25s ease;
}
.whatsapp-fab svg {
  width: 30px;
  height: 30px;
  color: #ffffff;
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab--hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.7);
}
.whatsapp-fab::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25D366;
  animation: whatsapp-pulse 2.2s ease-out infinite;
  z-index: -1;
}
@keyframes whatsapp-pulse {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.6); }
}

@media (max-width: 720px) {
  .whatsapp-fab { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .whatsapp-fab svg { width: 26px; height: 26px; }
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero__grid, .about__grid, .contact__grid { grid-template-columns: 1fr; }
  .features, .pricing { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr; }
  .price-card--featured { transform: none; }
}

@media (max-width: 720px) {
  .nav__links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--panel-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
    transform: translateY(-140%);
    transition: transform .3s ease;
  }
  .nav__links.open { transform: translateY(0); }
  .nav__burger { display: flex; }
  .features, .pricing, .timeline { grid-template-columns: 1fr; }
}