/* QIS — Quant Invest System | Layout */

/* ── Lang Switcher ── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-full, 999px);
  padding: 3px;
  margin-left: var(--space-3);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-sans);
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1;
}

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

.lang-btn.active {
  background: var(--accent);
  color: #0A0F1C;
}

/* mobile lang switcher */
.nav-mobile .lang-switcher {
  margin: var(--space-4) auto 0;
  justify-content: center;
  width: fit-content;
}

/* DE nie jest jeszcze dostępne — ukryte do czasu dodania de.json */
.lang-btn[data-lang="de"] { display: none; }

/* ── Bloki dwujęzyczne (data-lang) ── */
/* Domyślnie EN widoczne, PL ukryte — JS przełącza display po wyborze języka */
[data-lang="pl"] { display: none; }


/* ── Container ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-6); }

/* ── Flex utils ── */
.flex         { display: flex; }
.flex-col     { display: flex; flex-direction: column; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap    { flex-wrap: wrap; }
.gap-2        { gap: var(--space-2); }
.gap-3        { gap: var(--space-3); }
.gap-4        { gap: var(--space-4); }
.gap-6        { gap: var(--space-6); }
.gap-8        { gap: var(--space-8); }

/* ── Nav ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 15, 28, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(10, 15, 28, 0.97);
  box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.nav-logo-img { height: 36px; width: auto; }

.nav-logo-text {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.nav-logo-text span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-cta { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

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

/* Mobile menu */
.nav-mobile {
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: rgba(10, 15, 28, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.nav-mobile.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-mobile a {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0,212,170,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(59,130,246,0.06) 0%, transparent 60%),
    var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-20) var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
}

.hero-content { display: flex; flex-direction: column; gap: var(--space-6); }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--accent-muted);
  border: 1px solid var(--accent-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  width: fit-content;
}

.hero-title {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-title .gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

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

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* ── Performance bar / Social proof strip ── */
.strip {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-8) 0;
}

/* ── Page header (inner pages) ── */
.page-header {
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0,212,170,0.07) 0%, transparent 60%),
    var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: calc(var(--nav-height) + var(--space-12)) 0 var(--space-12);
}

.page-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ── Footer ── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-10);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h5 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  font-weight: 600;
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-2); }

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.footer-social-link {
  width: 36px; height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition);
}

.footer-social-link:hover {
  color: var(--accent);
  border-color: var(--accent-border);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-payment-icons { display: flex; gap: var(--space-2); align-items: center; }

.payment-icon {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ── Spacing utils ── */
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

/* ── Main content offset for nav ── */
main { padding-top: var(--nav-height); }
.hero-page main { padding-top: 0; }