/* ═══════════════════════════════════════════
   BLUEWARE — Design System
   Base: #0301d4 (intense pure blue)
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Nunito:wght@800&display=swap');

/* ─── Tokens — Dark (default) ─── */
:root {
  --bg:         #080826;
  --surface:    #0D0D32;
  --surface-2:  #151548;
  --border:     #20206A;
  --border-2:   #303090;

  --accent:     #0301d4;
  --accent-dim: #0200A8;
  --accent-hi:  #4A48FF;
  --glow:       #6A68FF;

  --text:       #ABABD8;
  --heading:    #ECEEFF;
  --muted:      #6060A0;
  --subtle:     #A0A0DC;

  --font: 'Syne', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-wordmark: 'Nunito', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;

  --radius-sm:  6px;
  --radius:     12px;
  --radius-lg:  20px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t: 0.22s;
}

:root[data-theme="dark"] {
  --bg:         #080826;
  --surface:    #0D0D32;
  --surface-2:  #151548;
  --border:     #20206A;
  --border-2:   #303090;
  --accent:     #0301d4;
  --accent-dim: #0200A8;
  --accent-hi:  #4A48FF;
  --glow:       #6A68FF;
  --text:       #ABABD8;
  --heading:    #ECEEFF;
  --muted:      #6060A0;
  --subtle:     #282870;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── Navigation ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(2rem, 6vw);
  height: 68px;
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.nav-logo-wordmark {
  font-family: var(--font-wordmark);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--heading);
}

.nav-wordmark {
  height: 22px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--t) var(--ease);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--heading); }

/* ─── Hamburger ─── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-burger span {
  display: block;
  height: 1.5px;
  background: var(--heading);
  border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
  transform-origin: center;
}

.nav-burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-burger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0;
  }

  .nav-links.open { display: flex; }

  .nav-links li a {
    display: block;
    padding: 0.9rem max(2rem, 6vw);
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child a { border-bottom: none; }
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.6rem;
  transition: all var(--t) var(--ease);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 0 transparent;
}

.btn-primary:hover {
  background: var(--accent-hi);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px color-mix(in srgb, var(--accent) 40%, transparent);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--heading);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

/* ─── Section primitives ─── */
.section {
  padding: 6rem max(2rem, 6vw);
}

.section-label {
  font-size: 1.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-hi);
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-label::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.03em;
  color: var(--heading);
  text-wrap: balance;
  line-height: 1.08;
}

.section-sub {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.75;
  max-width: 520px;
  margin-top: 0.9rem;
}

/* ─── Divider ─── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ─── Logo SVG (reusable) ─── */
.bw-logo-svg {
  width: 24px;
  height: 34px;
  flex-shrink: 0;
}

/* ─── Footer ─── */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2.5rem max(2rem, 6vw);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--muted);
}

.footer-copy strong { color: var(--text); }

.footer-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.75rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--t) var(--ease);
}

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

/* ─── Lang toggle ─── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.lang-btn {
  font-family: var(--font);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.15rem 0;
  transition: color var(--t) var(--ease);
  line-height: 1;
}

.lang-btn:hover { color: var(--text); }
.lang-btn.active { color: var(--heading); }

.lang-sep {
  font-size: 0.6rem;
  color: var(--border-2);
  user-select: none;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .section { padding: 4rem max(1.5rem, 4vw); }
}