/* ============================================================
   Shareflow — Layout & Responsive (Mobile-First enhancements)
   Base styles assume desktop grids; media queries collapse them.
   ============================================================ */

/* ---------- Generic grids ---------- */
.grid { display: grid; gap: clamp(1rem, 0.6rem + 1.6vw, 1.6rem); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: calc(var(--header-h) + clamp(2.5rem, 1rem + 6vw, 6rem)) var(--space-section);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
}
.hero__title { font-size: var(--fs-hero); font-weight: 900; }
.hero__title span { display: block; }
.hero__lead { color: var(--muted); font-size: var(--fs-lead); margin-block: 1.4rem; max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.hero__ticks { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-block-start: 1.6rem; }
.hero__ticks li { position: relative; padding-inline-start: 1.5rem; color: var(--muted); font-size: var(--fs-sm); }
.hero__ticks li::before { content: "✓"; position: absolute; inset-inline-start: 0; color: var(--gold); font-weight: 900; }
.hero__visual { position: relative; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .feature { grid-template-columns: 1fr; }
  .feature--reverse .feature__media { order: 0; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  /* Mobile navigation */
  .nav {
    position: fixed;
    inset-block-start: var(--header-h);
    inset-inline: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 15, 36, 0.97);
    backdrop-filter: blur(16px);
    border-block-end: 1px solid var(--border);
    padding: 0.5rem 1.2rem 1.2rem;
    transform: translateY(-120%);
    transition: transform 0.35s var(--ease);
    box-shadow: var(--shadow-float);
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding-block: 0.9rem; border-block-end: 1px solid var(--border); font-size: 1rem; }
  .nav a::after { display: none; }
  .nav-burger { display: block; }
  .header__cta { display: none; }

  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__copy { order: 2; }
  .hero__visual { order: 1; margin-block-end: 1rem; }
  .hero__lead { margin-inline: auto; }
  .hero__actions, .hero__ticks { justify-content: center; }

  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .demo__card { grid-template-columns: 1fr; }
  .quotes.grid--2 { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .grid--2, .grid--3, .grid--4, .sectors, .pillars { grid-template-columns: 1fr; }
  .trust__divider { display: none; }
  .brand__logo { width: 36px; height: 36px; border-radius: 9px; }
  .brand__word { font-size: 0.82rem; letter-spacing: 0.08em; }
  .brand__sub { font-size: 0.6rem; }
  .logo-chip { width: 150px; }
  .to-top { inset-block-end: 16px; inset-inline-end: 16px; width: 44px; height: 44px; }
  .footer__grid { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .hero__badge { transform: scale(0.85); }
  .hero__badge--gold { inset-inline-start: 0; }
  .hero__badge--blue { inset-inline-end: 0; }
  .btn--lg { --btn-px: 1.4rem; }
}

/* Prevent horizontal overflow safety net */
.section, .hero, .trust, .demo { max-width: 100vw; }