/* ===================================
   BMP – Layout (Nav + Footer)
   =================================== */

/* ── Navigation (Floating Glass Effect) ── */
.nav {
  position: fixed;
  top: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - var(--space-xl));
  max-width: var(--container-xl);
  height: 64px;
  background: rgba(10, 25, 47, 0.75);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  z-index: var(--z-nav);
  transition: 
    top 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    width 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    border-radius 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.4s ease,
    height 0.4s ease;
}

.nav.scrolled {
  top: 0;
  width: 100%;
  max-width: 100%;
  border-radius: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-top: none;
  border-left: none;
  border-right: none;
  background: rgba(6, 14, 27, 0.95);
  height: 72px;
}

.nav__inner {
  height: 100%;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
}

.nav__brand-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--color-white);
  letter-spacing: -0.01em;
  line-height: 1.1;
  display: block;
}

.nav__brand-sub {
  font-size: 9px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-top: 3px;
  opacity: 0.9;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__link {
  color: rgba(255, 255, 255, 0.65);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: var(--fw-bold);
  padding: 0.75rem 1.25rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  display: flex;
  align-items: center;
  border-radius: var(--radius-sm);
}

.nav__link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.nav__link.active {
  color: var(--color-accent);
  background: rgba(201, 162, 39, 0.08); /* Subtle gold tint */
}

/* Dots indicator for active state */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0.4rem;
  left: 50%;
  width: 3px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translateX(-50%) scale(0);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav__link.active::after {
  transform: translateX(-50%) scale(1);
}

.nav__cta {
  margin-left: var(--space-lg);
  padding: 0.75rem 1.5rem;
  font-size: 11px;
}

/* ── Page Hero (Depth & Atmosphere) ── */
.page-hero {
  padding: calc(var(--nav-height) + var(--space-5xl)) 0 var(--space-4xl);
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--color-primary-light) 0%, transparent 70%);
  opacity: 0.5;
}

/* ── Footer (Executive Style) ── */
.footer {
  background: var(--color-dark);
  padding: var(--space-5xl) 0 var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-4xl);
}

.footer__heading {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-xl);
  font-weight: var(--fw-bold);
}

.footer__link {
  color: var(--color-gray);
  font-size: var(--fs-small);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--space-xl);
  font-size: var(--fs-xs);
  color: var(--color-gray-dark);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ── Spacer ── */
.nav-spacer {
  height: var(--nav-height);
}

/* ── Scroll Progress Bar ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transform-origin: left center;
  z-index: calc(var(--z-nav) + 1);
  pointer-events: none;
}


/* ── Nav: Mobile Toggle ── */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10;
}

.nav__toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  transform-origin: center;
}

.nav__toggle.open .nav__toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav__toggle.open .nav__toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__toggle.open .nav__toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    inset: 0;
    background: rgba(6, 14, 27, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-16px);
    transition:
      opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }

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

  .nav__link {
    font-size: var(--fs-h3);
    letter-spacing: 0.05em;
  }

  .nav__cta {
    margin-top: var(--space-sm);
  }
}

/* ── Page Hero: text colors fix ── */
.page-hero h1,
.page-hero h2,
.page-hero h3,
.page-hero p {
  color: var(--color-white);
}

.page-hero .hero-title,
.page-hero__title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-black);
  color: var(--color-white);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-xl);
  text-wrap: balance;
}

.page-hero__subtitle {
  font-size: var(--fs-body-lg);
  color: rgba(255, 255, 255, 0.72);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--lh-relaxed);
}

/* ── Page Hero: animated orbs ── */
.page-hero__orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.page-hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}

.page-hero__orb--1 {
  width: 700px;
  height: 700px;
  background: rgba(201, 162, 39, 0.08);
  top: -300px;
  right: -150px;
  animation: orbFloat 14s ease-in-out infinite;
}

.page-hero__orb--2 {
  width: 500px;
  height: 500px;
  background: rgba(111, 182, 233, 0.07);
  bottom: -200px;
  left: -100px;
  animation: orbFloat 18s ease-in-out infinite reverse;
}

.page-hero__orb--3 {
  width: 300px;
  height: 300px;
  background: rgba(201, 162, 39, 0.05);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: orbFloat 10s ease-in-out infinite;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -25px) scale(1.06); }
  66%       { transform: translate(-20px, 15px) scale(0.94); }
}

/* ── Scroll Indicator ── */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: rgba(255, 255, 255, 0.35);
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
}

.scroll-indicator__line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(201, 162, 39, 0.5), transparent);
  animation: scrollLine 2.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}