/* ============================================
   CIS Tecnologia — Layout (Header, Footer, WhatsApp)
   ============================================ */

/* === HEADER === */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav);
  padding: var(--space-4) 0;
  transition: all 0.4s var(--ease-out);
  background: transparent;
}
.header--scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) 0;
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
}
.header__logo img { height: 38px; width: auto; object-fit: contain; transition: opacity 0.2s; }
.header__logo:hover img { opacity: 0.8; }

/* Troca para logo escura quando o header fica branco */
.header__logo .logo--light { display: block; }
.header__logo .logo--dark  { display: none; }
.header--scrolled .header__logo .logo--light { display: none; }
.header--scrolled .header__logo .logo--dark  { display: block; }

/* Nav */
.header__nav { display: flex; align-items: center; gap: var(--space-2); }
.header__nav a {
  font-family: var(--font-body); font-weight: var(--fw-medium); font-size: var(--text-sm);
  color: var(--color-text-secondary); padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm); transition: all 0.2s;
}
.header__nav a:hover { color: var(--color-primary); background: var(--color-bg-alt); }
.header__nav a.active { color: var(--color-primary); font-weight: var(--fw-semibold); }
.header__cta { margin-left: var(--space-4); }

/* On hero (white text) */
.header--on-hero .header__nav a { color: rgba(255,255,255,0.7); }
.header--on-hero .header__nav a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.header--on-hero.header--scrolled .header__nav a { color: var(--color-text-secondary); }
.header--on-hero.header--scrolled .header__nav a:hover { color: var(--color-primary); background: var(--color-bg-alt); }

/* Nav Dropdown */
.nav-dropdown {
  position: relative;
}
.nav-dropdown__trigger {
  display: flex; align-items: center; gap: var(--space-1);
  font-family: var(--font-body); font-weight: var(--fw-medium); font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: none; border: none; cursor: pointer;
  transition: all 0.2s;
}
.nav-dropdown__trigger:hover { color: var(--color-primary); background: var(--color-bg-alt); }
.nav-dropdown__trigger svg { transition: transform 0.2s; }
.nav-dropdown:hover .nav-dropdown__trigger svg { transform: rotate(180deg); }

.header--on-hero .nav-dropdown__trigger { color: rgba(255,255,255,0.7); }
.header--on-hero .nav-dropdown__trigger:hover { color: #fff; background: rgba(255,255,255,0.1); }
.header--on-hero.header--scrolled .nav-dropdown__trigger { color: var(--color-text-secondary); }

.nav-dropdown__menu {
  position: absolute; top: 100%; left: 0;
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  border: 1px solid var(--color-border);
  min-width: 200px; padding: var(--space-2); padding-top: 10px;
  opacity: 0; pointer-events: none;
  transform: translateY(-4px);
  transition: all 0.2s var(--ease-out);
  z-index: 100;
}
.nav-dropdown:hover .nav-dropdown__menu {
  opacity: 1; pointer-events: all; transform: translateY(0);
}
.nav-dropdown__menu a {
  display: block;
  font-size: var(--text-sm); font-weight: var(--fw-medium);
  color: var(--color-text-secondary) !important;
  padding: var(--space-3) var(--space-4) !important;
  border-radius: var(--radius-md);
  background: none !important;
  transition: all 0.15s;
}
.nav-dropdown__menu a:hover {
  color: var(--color-primary) !important;
  background: var(--color-bg-alt) !important;
}

/* Mobile menu label */
.mobile-menu__label {
  font-family: var(--font-heading); font-weight: var(--fw-bold);
  font-size: var(--text-xs); color: rgba(255,255,255,0.35);
  text-transform: uppercase; letter-spacing: 3px;
  margin-top: var(--space-2);
}
.mobile-menu__sub {
  font-size: var(--text-xl) !important;
  color: rgba(255,255,255,0.45) !important;
  padding-left: var(--space-6) !important;
}

/* Hamburger */
.hamburger {
  display: none; width: 28px; height: 20px;
  position: relative; cursor: pointer; z-index: calc(var(--z-overlay) + 1);
}
.hamburger span {
  position: absolute; left: 0; width: 100%; height: 2px;
  background: var(--color-text-primary); border-radius: 2px;
  transition: all 0.35s var(--ease-out);
}
.header--on-hero .hamburger span { background: #fff; }
.header--scrolled .hamburger span { background: var(--color-text-primary); }
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }
.hamburger.is-active span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { top: 9px; transform: rotate(-45deg); }
.hamburger.is-active span { background: #fff; }

/* Mobile menu */
.mobile-menu {
  position: fixed; inset: 0; z-index: var(--z-overlay);
  background: rgba(7,70,130,0.97); backdrop-filter: blur(24px);
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: var(--space-3);
  opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease-out);
}
.mobile-menu.is-active { opacity: 1; pointer-events: all; }
.mobile-menu a {
  font-family: var(--font-heading); font-weight: var(--fw-bold);
  font-size: var(--text-2xl); color: rgba(255,255,255,0.6);
  padding: var(--space-2) var(--space-4); transition: color 0.2s;
}
.mobile-menu a:hover { color: #fff; }
.mobile-menu .btn { margin-top: var(--space-6); }

@media (max-width: 1024px) {
  .header__nav { display: none; }
  .header__cta--desktop { display: none; }
  .hamburger { display: block; }
}

/* === BREADCRUMBS === */
.breadcrumbs {
  padding: var(--space-3) 0;
  font-size: var(--text-xs); color: var(--color-text-muted);
}
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs span { margin: 0 var(--space-2); }

/* === FOOTER === */
.footer {
  background-color: #080a0f;
  background-image: radial-gradient(circle, rgba(100,181,246,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--color-text-on-dark);
  padding: var(--space-16) 0 var(--space-8);
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-10);
}
.footer__brand img { height: 36px; width: auto; margin-bottom: var(--space-4); }
.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.35);
  line-height: var(--leading-relaxed);
  max-width: 280px;
}
.footer__col h4 {
  font-size: var(--text-sm); font-weight: var(--fw-bold);
  text-transform: uppercase; letter-spacing: var(--tracking-wider);
  color: #fff; margin-bottom: var(--space-4);
}
.footer__col a {
  display: block; color: var(--color-text-on-dark); font-size: var(--text-sm);
  padding: var(--space-1) 0; transition: color 0.2s;
}
.footer__col a:hover { color: #fff; }
.footer__contact-item {
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: var(--text-sm); margin-bottom: var(--space-3);
}
.footer__contact-item svg { flex-shrink: 0; margin-top: 2px; color: var(--color-primary-light); }
.footer__bottom {
  margin-top: var(--space-12); padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; justify-content: space-between; align-items: center;
  font-size: var(--text-xs); color: var(--color-text-muted);
}
.footer__social {
  display: flex; gap: var(--space-2); align-items: center;
}
.footer__social-link {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.45);
  transition: all 0.2s;
}
.footer__social-link:hover {
  border-color: rgba(255,255,255,0.3);
  color: #fff;
  background: rgba(255,255,255,0.05);
}

@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; gap: var(--space-3); text-align: center; }
}

/* === WHATSAPP FLOATING BUTTON === */
.whatsapp-float {
  position: fixed; bottom: var(--space-6); right: var(--space-6);
  z-index: var(--z-whatsapp);
  width: 60px; height: 60px;
  background: #25D366; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: all 0.3s var(--ease-out);
  animation: whatsapp-pulse 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1); box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}
.whatsapp-float svg { width: 32px; height: 32px; fill: #fff; }

@keyframes whatsapp-pulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 24px rgba(37,211,102,0.6); }
}

/* === PAGE HERO (inner pages) === */
.page-hero {
  background: var(--color-primary);
  padding: calc(var(--space-24) + 80px) 0 var(--space-16);
  color: #fff;
}
.page-hero h1 { color: #fff; margin-bottom: var(--space-4); }
.page-hero p { color: rgba(255,255,255,0.8); font-size: var(--text-lg); max-width: 640px; }
.page-hero--center { text-align: center; }
.page-hero--center p { margin: 0 auto; }