/* ═══════════════════════════════════════════════════════
   UltraSinergia — Layout
   ═══════════════════════════════════════════════════════ */

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  padding: var(--space-5) 0;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.site-header.scrolled {
  padding: var(--space-3) 0;
  background: rgba(10, 10, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

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

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  z-index: calc(var(--z-header) + 1);
  text-decoration: none;
  transition: opacity var(--duration-fast);
}

.logo:hover {
  opacity: 0.92;
}

.logo-horizontal-img {
  height: 38px;
  max-height: 38px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 12px rgba(111, 224, 208, 0.25));
}

.logo-vertical-img {
  height: 70px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 20px rgba(111, 224, 208, 0.35));
}

.logo-symbol-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 10px rgba(111, 224, 208, 0.3));
}

.footer-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  display: block;
  margin-bottom: var(--space-2);
  filter: drop-shadow(0 0 15px rgba(111, 224, 208, 0.25));
}

.logo-text {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1;
}

.logo-bold {
  font-weight: 800;
  color: #ffffff;
}

.logo-light {
  font-weight: 300;
  color: #ffffff;
  opacity: 0.95;
}

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

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

.nav-link {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-normal);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-cyan);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Header CTA */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ── Mobile Menu ── */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  z-index: calc(var(--z-header) + 2);
}

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

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--duration-normal) var(--ease-out-expo);
  border-radius: 1px;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(6, 6, 12, 0.98);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.nav-mobile-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out-expo);
  z-index: 10;
}

.nav-mobile-close:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  box-shadow: 0 0 25px rgba(0, 245, 212, 0.35);
  transform: rotate(90deg);
}

.nav-mobile.open {
  opacity: 1;
  visibility: visible;
}

.nav-mobile a {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  transition: color var(--duration-normal);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.nav-mobile.open a {
  transform: translateY(0);
  opacity: 1;
}

.nav-mobile a:hover {
  color: var(--accent-cyan);
}

/* ── Hero ── */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg-main) 0%, transparent 30%, transparent 60%, var(--bg-main) 100%),
              linear-gradient(90deg, var(--bg-main) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 950px;
  padding-top: calc(var(--header-height) + var(--space-8));
  padding-bottom: var(--space-8);
  text-align: left;
}

.hero-title {
  font-size: var(--fs-display);
  font-weight: var(--fw-black);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  max-width: 900px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--text-secondary);
  line-height: var(--lh-body);
  margin-bottom: var(--space-8);
  max-width: 680px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Hero particles canvas */
#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* ── Page Hero (internal pages) ── */
.page-hero {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  overflow: hidden;
  background: var(--gradient-hero);
  padding-top: calc(var(--header-height) + var(--space-12));
  padding-bottom: var(--space-12);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}

.page-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg-main) 0%, rgba(10,10,20,0.7) 50%, var(--bg-main) 100%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero p {
  margin-left: 0 !important;
  margin-right: auto !important;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}

.breadcrumb a {
  transition: color var(--duration-normal);
}

.breadcrumb a:hover {
  color: var(--accent-cyan);
}

.breadcrumb .current {
  color: var(--accent-cyan);
}

/* ── Footer ── */
.site-footer {
  background: var(--gradient-footer);
  padding-top: var(--space-24);
  padding-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0.3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-16);
  }
}

.footer-brand p {
  font-size: var(--fs-small);
  color: var(--text-tertiary);
  line-height: var(--lh-body);
  max-width: 320px;
  margin-top: var(--space-6);
  margin-bottom: var(--space-8);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-ultra);
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-links a,
.footer-links span {
  font-size: var(--fs-small);
  color: var(--text-tertiary);
  transition: color var(--duration-normal);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all var(--duration-normal);
}

.social-link:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0,245,212,0.2);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p,
.footer-bottom a {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.footer-bottom a:hover {
  color: var(--text-primary);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

/* ── Grids ── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Scroll to top ── */
.scroll-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  color: #040c16;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-sticky);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration-normal) var(--ease-out-expo);
  box-shadow: var(--shadow-glow-cyan);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px rgba(111, 224, 208, 0.55);
}

/* ── Loader ── */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease-out-expo);
}

.page-loader.loaded {
  opacity: 0;
  pointer-events: none;
}

.loader-mark {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: loaderPulse 1.6s ease-in-out infinite;
}

.loader-mark img {
  width: 60px;
  height: auto;
  filter: drop-shadow(0 0 20px rgba(111, 224, 208, 0.5));
}

@keyframes loaderPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 10px rgba(111,224,208,0.3)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 35px rgba(0,136,224,0.6)); }
}