/**
 * ╔══════════════════════════════════════╗
 * ║  KLUE DIGITAL — layout.css           ║
 * ║  Global layout, header, footer       ║
 * ║  Versão: 2.0.0                       ║
 * ╚══════════════════════════════════════╝
 */

/* ── CONTAINER ── */
.container {
  width: min(var(--container), calc(100% - var(--container-px)));
  margin: 0 auto;
}

/* ── HEADER ── */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  transition: background var(--dur-slow) var(--ease-out),
              border-color var(--dur-slow) var(--ease-out),
              padding var(--dur-base) var(--ease-out);
}

header.scrolled {
  background: rgba(7, 7, 15, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-primary-border);
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-6) 0;
  transition: padding var(--dur-base) var(--ease-out);
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--sp-6);
  padding-right: var(--sp-6);
}

header.scrolled .header-row {
  padding: var(--sp-4) var(--sp-6);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  height: 44px;
  flex-shrink: 0;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
  filter: brightness(10) saturate(0);
  transition: filter var(--dur-base) var(--ease-out);
  will-change: filter;
}

header.hero-zone .logo-img {
  filter: brightness(10) saturate(0);
}

/* Nav Desktop */
.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--sp-8);
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  position: relative;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--clr-text-muted);
  transition: color var(--dur-base) var(--ease-out);
  overflow: hidden;
  display: inline-block;
  cursor: pointer;
}

.nav-link span {
  display: block;
  transition: transform var(--dur-slow) var(--ease-out);
}

.nav-link::after {
  content: attr(data-text);
  position: absolute;
  top: 100%;
  left: 0;
  color: var(--clr-primary);
  transition: transform var(--dur-slow) var(--ease-out);
}

.nav-link:hover span {
  transform: translateY(-100%);
}

.nav-link:hover::after {
  transform: translateY(-100%);
}

.nav-link.active {
  color: var(--clr-primary);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--sp-2);
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: var(--z-fixed);
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 1px;
  transition: all var(--dur-base) var(--ease-out);
  transform-origin: center;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(7, 7, 15, 0.98);
  backdrop-filter: blur(20px);
  z-index: var(--z-sticky);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: var(--sp-6);
  padding: var(--sp-8);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}

.mobile-menu.open {
  max-height: calc(100vh - var(--header-height));
}

.mob-link {
  font-size: var(--fs-md);
  font-weight: var(--fw-semi);
  color: var(--clr-text-muted);
  transition: color var(--dur-base) var(--ease-out);
}

.mob-link:hover,
.mob-link.active {
  color: var(--clr-primary);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--clr-primary-border);
  padding: var(--sp-16) var(--sp-6);
  margin-top: var(--section-py);
}

.footer-content {
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
  color: var(--clr-text-muted);
  font-size: var(--fs-sm);
}

.footer-content p {
  margin: 0;
}

/* ── SECTIONS ── */
section {
  position: relative;
  z-index: var(--z-base);
  padding: var(--section-py) var(--sp-6);
}

section[id] {
  scroll-margin-top: var(--header-height);
}

/* ── GRID ── */
.grid {
  display: grid;
  gap: var(--sp-8);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── FLEX ── */
.flex {
  display: flex;
  gap: var(--sp-6);
}

.flex-col {
  flex-direction: column;
}

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

.flex-between {
  justify-content: space-between;
  align-items: center;
}