/* ============================================================
   VERTUS — Landing Page
   style.css
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --color-white:       #ffffff;
  --color-bg:          #F5F6FA;
  --color-dark:        #0D1117;
  --color-dark-alt:    #111827;
  --color-text:        #1A1A2E;
  --color-text-muted:  #6B7280;
  --color-accent:      #2563EB;
  --color-accent-dark: #1D4ED8;
  --color-border:      #E5E7EB;

  --font-base: 'Inter', system-ui, sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.14);

  --transition: 0.28s ease;

  --container-max: 1180px;
  --container-pad: 24px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* ── Container ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(37,99,235,.35);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,99,235,.45);
}

/* ── Section common ─────────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-eyebrow--light {
  color: rgba(255,255,255,0.55);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 16px;
}

.section-header--light .section-title,
.section-header--light .section-desc {
  color: var(--color-white);
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.8;
}

.section-header--light .section-desc {
  color: rgba(255,255,255,0.65);
}

/* ── Animations ─────────────────────────────────────────────── */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  border-color: var(--color-border);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

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

.header__logo-link {
  flex-shrink: 0;
  line-height: 0;
}

.header__logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav__list {
  display: flex;
  gap: 36px;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.01em;
  position: relative;
  transition: color var(--transition);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-accent);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  width: 100%;
}

/* ── Hamburger ──────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.hamburger:hover {
  background: var(--color-bg);
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__shape {
  position: absolute;
}

.hero__shape--circle {
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  opacity: 0.6;
}

.hero__shape--dots {
  left: 5%;
  bottom: 8%;
  width: 140px;
  height: 140px;
  opacity: 0.5;
}

.hero__glow {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37,99,235,0.18) 0%, transparent 70%);
  right: 10%;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding-block: 80px;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__illustration {
  width: 100%;
  max-width: 480px;
  filter: drop-shadow(0 24px 48px rgba(0,0,0,.4));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--color-white);
  padding: 100px 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ── Service Card ───────────────────────────────────────────── */
.service-card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px 44px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,.25);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(37,99,235,0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: background var(--transition);
}

.service-card:hover .service-card__icon {
  background: rgba(37,99,235,0.14);
}

.service-card__icon svg {
  width: 32px;
  height: 32px;
}

.service-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.service-card__desc {
  font-size: 0.94rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.service-card__accent {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  border-radius: 0 3px 0 0;
  transition: width 0.4s ease;
}

.service-card:hover .service-card__accent {
  width: 100%;
}

/* ============================================================
   ABOUT / DIFERENCIAIS
   ============================================================ */
.about {
  background: var(--color-dark-alt);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.about__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  pointer-events: none;
}

.about__shape {
  width: 100%;
  height: 200px;
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.about__item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.about__item:hover {
  background: rgba(37,99,235,0.1);
  border-color: rgba(37,99,235,.3);
  transform: translateY(-4px);
}

.about__icon {
  width: 48px;
  height: 48px;
  background: rgba(37,99,235,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.about__icon svg {
  width: 24px;
  height: 24px;
}

.about__item-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.about__item-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-dark);
  padding: 48px 0 32px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer__contacts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 24px;
  margin-bottom: 32px;
}

.footer__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.01em;
}

.footer__icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: rgba(255,255,255,0.4);
}

.footer__separator {
  color: rgba(255,255,255,0.2);
  font-size: 1.1rem;
  line-height: 1;
  user-select: none;
}

.footer__bottom {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 24px;
}

.footer__copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.02em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ── Tablet (≤ 1024px) ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero__content {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
    padding-block: 72px;
  }

  .hero__subtitle {
    margin-inline: auto;
  }

  .hero__visual {
    order: -1;
  }

  .hero__illustration {
    max-width: 340px;
  }

  .hero__shape--circle {
    width: 400px;
    height: 400px;
    right: 0;
    top: 0;
    transform: none;
  }

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

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

  .footer__separator {
    display: none;
  }
}

/* ── Mobile (≤ 768px) ───────────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    padding: 20px 24px;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
    z-index: 99;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    gap: 0;
  }

  .nav__link {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__list li:last-child .nav__link {
    border-bottom: none;
  }

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

  .service-card {
    padding: 32px 28px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .footer__contacts {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .footer__separator {
    display: none;
  }

  .footer__item {
    justify-content: center;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .services,
  .about {
    padding: 72px 0;
  }
}

/* ── Small mobile (≤ 480px) ─────────────────────────────────── */
@media (max-width: 480px) {
  .hero__shape--circle {
    display: none;
  }

  .hero__illustration {
    max-width: 280px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}