/* ============================================================
   CATALYST — Layout: Header, Footer, Navigation, Grids
   ============================================================ */

/* ══════════════════════════════════════════════════════════════
   HEADER & NAVIGATION
══════════════════════════════════════════════════════════════ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: 0;
  background: rgba(12, 13, 17, 0.95);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  transition: padding var(--t-base);
}

.site-header.scrolled {
  /* Inherits from .site-header now */
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.4rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}

/* ── Logo ────────────────────────────────────────────────────── */
.nav-logo {
  font-size: 57px;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-bright) 30%, var(--silver-bright) 65%, var(--blue-pale) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 14px rgba(59, 130, 246, 0.25));
  text-decoration: none;
  flex-shrink: 0;
  transition: filter var(--t-base);
}

.nav-logo:hover {
  filter: drop-shadow(0 0 22px rgba(59, 130, 246, 0.45));
}

/* ── Nav Links ───────────────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.nav-link {
  color: rgba(162, 178, 200, 0.7);
  text-decoration: none;
  font-size: var(--fs-lg);
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: var(--r-sm);
  transition: color var(--t-base), background var(--t-base);
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), transparent);
  border-radius: var(--r-full);
  transition: width var(--t-base);
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(59, 130, 246, 0.07);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - 1.8rem);
}

.nav-link.active {
  color: var(--blue-bright);
  background: rgba(59, 130, 246, 0.08);
}

/* ── Nav Actions ─────────────────────────────────────────────── */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.nav-actions .btn {
  font-size: var(--fs-base);
  padding: 0.6rem 1.2rem;
}

/* ── Hamburger ───────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 8px;
  border-radius: var(--r-sm);
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: background var(--t-base);
}

.hamburger:hover {
  background: rgba(59, 130, 246, 0.12);
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--silver);
  border-radius: var(--r-full);
  transition: transform var(--t-base), opacity var(--t-base), width var(--t-base);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ─────────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 5, 7, 0.96);
  backdrop-filter: blur(24px);
  z-index: calc(var(--z-header) - 1);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  animation: fade-in 0.25s ease;
}

.mobile-menu.open { display: flex; }

.mobile-nav-link {
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color var(--t-base), transform var(--t-spring);
  padding: var(--sp-3) var(--sp-8);
}

.mobile-nav-link:hover {
  color: var(--text-primary);
  transform: translateX(8px);
}

/* ══════════════════════════════════════════════════════════════
   HERO LAYOUT
══════════════════════════════════════════════════════════════ */

.page-hero {
  padding: 220px 0 var(--sp-20);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-5);
  background: linear-gradient(145deg, var(--text-primary) 0%, var(--silver) 55%, var(--silver-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--sp-8);
  line-height: 1.72;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  padding-bottom: var(--sp-20);
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0c0d11 0%, #161a25 100%);
}

.hero-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-8);
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: var(--sp-16);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content { position: relative; z-index: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--blue-bright);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 5px 14px;
  border-radius: var(--r-full);
  margin-bottom: var(--sp-6);
  animation: fade-up 0.6s ease both;
}

.hero-eyebrow::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--blue-bright);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero h1 {
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-6);
  animation: fade-up 0.6s ease 0.1s both;
  color: #ffffff;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--blue-bright) 0%, var(--silver-bright) 45%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradient-shift 5s ease infinite;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.72;
  margin-bottom: var(--sp-8);
  max-width: 520px;
  font-weight: 300;
  animation: fade-up 0.6s ease 0.2s both;
}

.hero-ctas {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-12);
  animation: fade-up 0.6s ease 0.3s both;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  animation: fade-up 0.6s ease 0.4s both;
}

.hero-trust-avatars {
  display: flex;
}

.hero-trust-avatars span {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--bg-deep);
  background: linear-gradient(135deg, var(--steel-dark), var(--steel-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--silver);
  margin-left: -8px;
}

.hero-trust-avatars span:first-child { margin-left: 0; }

.hero-trust-text {
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.7);
}

.hero-trust-text strong {
  color: #ffffff;
  display: block;
}

/* ── Device Mockup ───────────────────────────────────────────── */
.hero-visual {
  position: relative;
  z-index: 1;
  animation: float-slow 7s ease-in-out infinite;
}

.device-frame {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.95) 100%);
  border-radius: 24px;
  padding: 14px;
  border: 1px solid rgba(249, 115, 22, 0.22);
  box-shadow:
    0 24px 72px rgba(15, 23, 42, 0.1),
    0 0 0 1px rgba(249, 115, 22, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(15, 23, 42, 0.05),
    0 0 80px rgba(249, 115, 22, 0.15);
  animation: glow-pulse 4s ease-in-out infinite;
}

.device-screen {
  background: linear-gradient(160deg, rgba(252, 250, 246, 0.98) 0%, rgba(255, 255, 255, 0.99) 50%, rgba(245, 240, 230, 0.98) 100%);
  border-radius: 14px;
  padding: 1.6rem;
  min-height: 340px;
  border: 1px solid rgba(249, 115, 22, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.screen-header-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.screen-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.screen-dot--red    { background: #FF5F57; }
.screen-dot--yellow { background: #FFBD2E; }
.screen-dot--green  { background: #28C840; }

.screen-bar {
  flex: 1;
  height: 8px;
  background: rgba(249, 115, 22, 0.12);
  border-radius: var(--r-full);
  border: 1px solid rgba(249, 115, 22, 0.1);
}

.screen-line {
  height: 8px;
  border-radius: var(--r-full);
  background: linear-gradient(90deg, rgba(249, 115, 22, 0.55) 0%, rgba(249, 115, 22, 0.22) 60%, transparent 100%);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.15);
}

.screen-line--sm  { width: 60%; }
.screen-line--md  { width: 75%; }
.screen-line--lg  { width: 90%; }

.screen-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}

.screen-card {
  background: rgba(249, 115, 22, 0.06);
  border: 1px solid rgba(249, 115, 22, 0.1);
  border-radius: var(--r-md);
  padding: var(--sp-4);
  height: 70px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.screen-card-num {
  font-size: var(--fs-lg);
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue-bright), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.screen-card-lbl {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Hero Background Decoration ──────────────────────────────── */
.hero-bg-orb-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 65%);
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}

.hero-bg-orb-2 {
  position: absolute;
  bottom: 5%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.07) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

/* ══════════════════════════════════════════════════════════════
   GRIDS
══════════════════════════════════════════════════════════════ */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--sp-6); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════ */

.site-footer {
  border-top: 1px solid var(--glass-border);
  background: #0f172a;
  padding: var(--sp-16) 0 var(--sp-8);
  position: relative;
  color: #e2e8f0;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-8);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-12);
}

.footer-brand .footer-logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-bright) 30%, var(--silver-bright) 65%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--sp-4);
  display: block;
}

.footer-brand p {
  font-size: var(--fs-sm);
  color: #94a3b8;
  line-height: 1.72;
  max-width: 280px;
}

.footer-col h5 {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #ffffff;
  margin-bottom: var(--sp-5);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-col ul li a {
  font-size: var(--fs-sm);
  color: #94a3b8;
  transition: color var(--t-fast);
}

.footer-col ul li a:hover {
  color: var(--blue-bright);
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: var(--sp-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.footer-copy {
  font-size: var(--fs-xs);
  color: #94a3b8;
}

.footer-socials {
  display: flex;
  gap: var(--sp-3);
}

.social-link {
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 14px;
  transition: all var(--t-base);
  text-decoration: none;
}

.social-link:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--blue-bright);
  transform: translateY(-2px);
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE LAYOUT
══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-visual { max-width: 500px; margin: 0 auto; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn { display: none; }
  .hamburger { display: flex; }
  .hero { padding-top: 80px; padding-bottom: var(--sp-16); }
  .hero-grid { padding: 0 var(--sp-5); }
  .footer-top { grid-template-columns: 1fr; gap: var(--sp-8); }
  .footer-bottom { flex-direction: column; text-align: center; }
}