/* =========================================================================
   Goibniu — Design System
   Premium, minimalist SaaS aesthetic (Stripe / Linear / Vercel inspired)
   ========================================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Brand */
  --indigo: #6366f1;
  --indigo-600: #4f46e5;
  --cyan: #22d3ee;
  --violet: #a855f7;
  --brand-grad: linear-gradient(120deg, #6366f1 0%, #22d3ee 100%);
  --brand-grad-soft: linear-gradient(120deg, rgba(99,102,241,.16), rgba(34,211,238,.16));

  /* Dark theme (default) */
  --bg: #070810;
  --bg-2: #0b0d18;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f5fb;
  --text-muted: #a5a9be;
  --text-faint: #71768f;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --glass-blur: saturate(160%) blur(14px);

  /* Type */
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1180px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-sm: 10px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-2: #f6f7fb;
  --surface: rgba(15, 18, 40, 0.02);
  --surface-2: rgba(15, 18, 40, 0.04);
  --border: rgba(15, 18, 40, 0.10);
  --border-strong: rgba(15, 18, 40, 0.16);
  --text: #0d1024;
  --text-muted: #4a4f68;
  --text-faint: #7b8098;
  --shadow: 0 24px 60px -28px rgba(24, 28, 60, 0.35);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

/* ---------- Ambient background ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 15% 0%, rgba(99, 102, 241, 0.18), transparent 60%),
    radial-gradient(50% 45% at 90% 5%, rgba(34, 211, 238, 0.14), transparent 55%),
    radial-gradient(60% 60% at 80% 100%, rgba(168, 85, 247, 0.12), transparent 60%);
  pointer-events: none;
}
[data-theme="light"] body::before { opacity: 0.55; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: 96px 0; position: relative; }
.section-sm { padding: 64px 0; }
.grid { display: grid; gap: 24px; }
.center { text-align: center; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: var(--text-muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-muted);
}
.gradient-text {
  background: var(--brand-grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.max-60 { max-width: 60ch; }
.mx-auto { margin-inline: auto; }

/* ---------- Badges / chips ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 0.8rem; font-weight: 500; color: var(--text-muted);
  backdrop-filter: var(--glass-blur);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 0.9rem; color: var(--text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 13px 24px; border-radius: 12px;
  font-weight: 600; font-size: 0.98rem; border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  color: #fff; background: var(--brand-grad);
  box-shadow: 0 10px 30px -8px rgba(79, 70, 229, 0.6);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(79, 70, 229, 0.75); }
.btn-ghost {
  color: var(--text); background: var(--surface-2);
  border-color: var(--border-strong); backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--cyan); background: var(--surface); }
.btn-lg { padding: 16px 30px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- Glass cards ---------- */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: var(--glass-blur);
  transition: transform .35s var(--ease), border-color .35s, background .35s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 18px;
  background: var(--brand-grad-soft); border: 1px solid var(--border);
  color: var(--cyan);
}
.card .icon svg, .icon > svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: 0.96rem; }

/* subtle top highlight line on feature cards */
.card.glow::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .5;
}

/* ---------- Header / Nav ---------- */
.nav-wrap { position: sticky; top: 0; z-index: 100; }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: 70px;
  margin-top: 14px; padding: 0 20px;
  border: 1px solid var(--border); border-radius: 16px;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  transition: box-shadow .3s, background .3s;
}
.nav.scrolled { box-shadow: var(--shadow); background: color-mix(in srgb, var(--bg) 86%, transparent); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.12rem; letter-spacing: -0.01em; }
.brand img { width: 68px; height: 60px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 9px 14px; border-radius: 10px; font-size: 0.95rem; color: var(--text-muted);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: var(--text); background: var(--surface-2); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
  transition: border-color .2s, transform .2s;
}
.icon-btn:hover { border-color: var(--cyan); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
[data-theme="light"] .theme-toggle .sun { display: block; }
[data-theme="light"] .theme-toggle .moon { display: none; }
.nav-toggle { display: none; }

/* Mobile menu */
.mobile-menu {
  display: none; flex-direction: column; gap: 6px;
  margin-top: 10px; padding: 14px; border-radius: 16px;
  border: 1px solid var(--border); background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: var(--glass-blur);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 14px; border-radius: 10px; color: var(--text-muted); }
.mobile-menu a:hover { background: var(--surface-2); color: var(--text); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 0 72px; }
.hero-inner { max-width: 860px; }
.hero h1 { margin: 22px 0 20px; }
.hero .lead { max-width: 60ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 40px; color: var(--text-faint); font-size: 0.9rem; }
.hero-meta strong { color: var(--text); font-weight: 700; display: block; font-size: 1.5rem; letter-spacing: -0.02em; }

.hero-visual { margin-top: 60px; }

/* ---------- App mockup (CSS/SVG placeholder screenshot) ---------- */
.mock {
  border-radius: var(--radius-lg); border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  box-shadow: var(--shadow); overflow: hidden;
}
.mock-bar {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  border-bottom: 1px solid var(--border); background: var(--surface);
}
.mock-bar .dots { display: flex; gap: 7px; }
.mock-bar .dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--border-strong); }
.mock-bar .dots span:nth-child(1) { background: #ff5f57; }
.mock-bar .dots span:nth-child(2) { background: #febc2e; }
.mock-bar .dots span:nth-child(3) { background: #28c840; }
.mock-bar .url {
  margin-left: 12px; font-size: 0.78rem; color: var(--text-faint);
  padding: 5px 12px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border);
}
.mock-body { display: grid; grid-template-columns: 220px 1fr; min-height: 360px; }
.mock-side { border-right: 1px solid var(--border); padding: 16px; background: var(--surface); }
.mock-side .s-title { font-size: 0.72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-faint); margin-bottom: 12px; }
.mock-item { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; font-size: 0.85rem; color: var(--text-muted); }
.mock-item.active { background: var(--brand-grad-soft); color: var(--text); border: 1px solid var(--border); }
.mock-item .mi-ic { width: 16px; height: 16px; border-radius: 4px; background: var(--brand-grad); opacity: .8; flex: none; }
.mock-main { padding: 24px; display: flex; flex-direction: column; gap: 18px; }
.mock-h { display: flex; align-items: center; justify-content: space-between; }
.mock-h .mh-title { font-weight: 600; }
.wave { display: flex; align-items: flex-end; gap: 4px; height: 90px; padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); }
.wave span { flex: 1; border-radius: 4px 4px 0 0; background: var(--brand-grad); opacity: .85; animation: wave 1.6s var(--ease) infinite; }
@keyframes wave { 0%,100% { transform: scaleY(0.35); } 50% { transform: scaleY(1); } }
.mock-row { display: flex; gap: 12px; }
.mock-pill { flex: 1; padding: 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); }
.mock-pill .p-label { font-size: 0.72rem; color: var(--text-faint); }
.mock-pill .p-val { font-weight: 600; margin-top: 4px; }
.mock-play { display: flex; align-items: center; gap: 14px; padding: 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); }
.mock-play .pbtn { width: 40px; height: 40px; border-radius: 50%; background: var(--brand-grad); display: grid; place-items: center; color: #fff; flex: none; }
.mock-play .pbar { flex: 1; height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; }
.mock-play .pbar i { display: block; height: 100%; width: 42%; background: var(--brand-grad); }

/* Generic image placeholder */
.img-ph {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border-strong); background:
    linear-gradient(135deg, rgba(99,102,241,.12), rgba(34,211,238,.08)), var(--bg-2);
  aspect-ratio: 18 / 10; display: grid; place-items: center;
}
.img-ph .ph-label {
  position: absolute; top: 12px; left: 12px; font-size: 0.7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-faint); background: var(--surface-2); border: 1px solid var(--border);
  padding: 4px 10px; border-radius: 999px;
}
.img-ph .ph-mark { opacity: .5; }
.img-ph .ph-mark svg { width: 54px; height: 54px; color: var(--text-faint); }

/* ---------- Feature grids ---------- */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Split section */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse .split-media { order: -1; }

/* Feature list with checks */
.check-list { list-style: none; padding: 0; display: grid; gap: 12px; margin-top: 8px; }
.check-list li { display: flex; align-items: flex-start; gap: 12px; color: var(--text-muted); }
.check-list li .ck {
  flex: none; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; margin-top: 2px;
  background: var(--brand-grad-soft); border: 1px solid var(--border); color: var(--cyan);
}
.check-list li .ck svg { width: 13px; height: 13px; }

/* ---------- Callout / notice ---------- */
.notice {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 20px; border-radius: 14px;
  background: var(--brand-grad-soft); border: 1px solid var(--border-strong);
}
.notice .n-ic { flex: none; color: var(--cyan); margin-top: 2px; }
.notice p { color: var(--text); font-size: 0.95rem; }
.notice strong { color: var(--text); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  padding: 72px 32px; border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  background: linear-gradient(120deg, rgba(99,102,241,.16), rgba(34,211,238,.12)), var(--bg-2);
}
.cta-band::after {
  content: ""; position: absolute; inset: -40% -10% auto; height: 60%;
  background: radial-gradient(50% 60% at 50% 0%, rgba(34,211,238,.25), transparent 70%);
  pointer-events: none;
}
.cta-band h2 { margin-bottom: 14px; }
.cta-band .hero-cta { justify-content: center; }

/* ---------- Product catalogue ---------- */
.product {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 0;
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden;
  background: var(--surface); backdrop-filter: var(--glass-blur);
}
.product .p-media { padding: 32px; display: grid; align-content: center; background:
  linear-gradient(160deg, rgba(99,102,241,.10), rgba(34,211,238,.05)); border-right: 1px solid var(--border); }
.product .p-info { padding: 40px; }
.product .p-info h3 { font-size: 1.7rem; margin-bottom: 6px; }
.product .p-tag { color: var(--cyan); font-size: 0.85rem; font-weight: 600; letter-spacing: .04em; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 22px 0; }
.spec {
  padding: 12px 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border);
}
.spec .s-k { font-size: 0.72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); }
.spec .s-v { font-weight: 600; font-size: 0.92rem; margin-top: 3px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }

/* Coming soon product card */
.soon {
  border: 1px dashed var(--border-strong); border-radius: var(--radius-lg);
  padding: 40px; text-align: center; background: var(--surface);
}
.soon .icon { margin: 0 auto 16px; }

/* ---------- Contact ---------- */
.form-grid { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.88rem; font-weight: 500; color: var(--text-muted); }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
  font-family: inherit; font-size: 0.96rem; transition: border-color .2s, background .2s;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--cyan); background: var(--surface); outline: none; }
.field .req { color: var(--cyan); }
.form-note { font-size: 0.82rem; color: var(--text-faint); }
.contact-cards { display: grid; gap: 16px; }
.contact-card { display: flex; gap: 14px; align-items: flex-start; padding: 20px; }
.contact-card .icon { margin: 0; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-faint); margin-bottom: 16px; font-weight: 600; }
.footer ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer ul a { color: var(--text-muted); font-size: 0.94rem; }
.footer ul a:hover { color: var(--text); }
.footer .f-brand p { color: var(--text-muted); max-width: 34ch; margin-top: 14px; font-size: 0.94rem; }
.footer-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--text-faint); font-size: 0.86rem;
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- Page hero (secondary pages) ---------- */
.page-hero { padding: 72px 0 24px; }
.page-hero h1 { margin: 18px 0 16px; }

/* ---------- Divider label ---------- */
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-inline: auto; }
.section-head h2 { margin: 14px 0 12px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .split, .product { grid-template-columns: 1fr; }
  .split.reverse .split-media { order: 0; }
  .product .p-media { border-right: none; border-bottom: 1px solid var(--border); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer .f-brand { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: grid; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr 1fr; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 20px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Audiobook screenshot */

.hero-screenshot {
    width: 100%;
    max-width: 1100px;
    display: block;
    margin: 0 auto;
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 30px 80px rgba(0,0,0,.45);
}

/* =========================================================================
   Legal & Policies page — additive only, does not modify existing rules
   ========================================================================= */

.legal-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.legal-nav {
  display: grid;
  gap: 4px;
  position: sticky;
  top: 96px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.legal-nav-item {
  display: flex;
  align-items: center;
  text-align: left;
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.legal-nav-item:hover { color: var(--text); background: var(--surface-2); }

.legal-nav-item.active {
  color: var(--text);
  background: var(--brand-grad-soft);
  border: 1px solid var(--border);
  font-weight: 600;
}

.legal-content {
  padding: 44px;
  min-height: 320px;
}

.legal-doc { display: none; }
.legal-doc.active { display: block; }
.legal-doc h2 { margin: 12px 0 8px; }
.legal-doc .legal-meta { margin-bottom: 24px; font-size: 0.88rem; }
.legal-doc .notice { margin-top: 8px; }

@media (max-width: 860px) {
  .legal-layout { grid-template-columns: 1fr; }
  .legal-nav {
    position: static;
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .legal-nav-item { white-space: nowrap; }
  .legal-content { padding: 28px; }
}


/* =========================================================================
   Goibniu — Mobile & responsive enhancements
   -------------------------------------------------------------------------
   ADDITIVE ONLY. Does not modify or remove any existing rule in styles.css.
   Paste at the END of assets/css/styles.css, OR load as a separate file
   AFTER styles.css.
   ========================================================================= */

/* ---- Belt-and-braces: never allow sideways scroll on phones ---- */
html, body { max-width: 100%; overflow-x: hidden; }
img, svg, video, canvas, iframe { max-width: 100%; height: auto; }

/* =========================================================================
   NAV "View Products" CTA — icon-only on mobile
   Root cause: the button label is wider than the compact tap target on
   phones, so the text spills. Below, on <=720px we hide the label and paint
   a "products" (grid) SVG icon in its place — no HTML change required.

   NOTE ON THE SELECTOR:
   This targets the nav's primary button. If your "View Products" button in
   the header uses a different class, add the hook class `nav-cta` to it, e.g.
       <a href="products.html" class="btn btn-primary nav-cta">View Products</a>
   The rules below match BOTH `.nav .btn-primary` and `.nav .nav-cta`.
   ========================================================================= */
@media (max-width: 720px) {
  .nav .btn-primary,
  .nav .nav-cta {
    width: 40px;
    height: 40px;
    padding: 0;
    font-size: 0;                 /* hide the text label */
    border-radius: 10px;
    flex: none;
    display: inline-grid;
    place-items: center;
    overflow: hidden;
  }

  /* Paint the products icon via a mask so it uses the button's text colour */
  .nav .btn-primary::before,
  .nav .nav-cta::before {
    content: "";
    width: 18px;
    height: 18px;
    background: currentColor;
    -webkit-mask: var(--nav-cta-icon) center / contain no-repeat;
            mask: var(--nav-cta-icon) center / contain no-repeat;
  }

  /* Hide any inline SVG the button may already contain (avoid double icons) */
  .nav .btn-primary > svg,
  .nav .nav-cta > svg { display: none; }
}

/* Grid/products glyph as a data-URI (defined once, used by the mask above) */
:root {
  --nav-cta-icon: url("data:image/svg+xml;utf8,\
<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' \
stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'>\
<rect x='3' y='3' width='7' height='7' rx='1'/>\
<rect x='14' y='3' width='7' height='7' rx='1'/>\
<rect x='14' y='14' width='7' height='7' rx='1'/>\
<rect x='3' y='14' width='7' height='7' rx='1'/></svg>");
}

/* =========================================================================
   HEADER / NAV — portrait-mode fit
   ========================================================================= */
@media (max-width: 720px) {
  .nav-wrap { max-width: 100%; }

  .nav {
    gap: 10px;
    padding: 0 12px;
    flex-wrap: nowrap;
    min-width: 0;
  }

  .brand {
    min-width: 0;
    flex: 1 1 auto;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .brand img { flex: none; }

  .nav-actions {
    flex: none;
    gap: 6px;
    margin-left: auto;
  }

  .nav-actions .icon-btn,
  .nav-toggle {
    flex: none;
    width: 40px;
    height: 40px;
    padding: 0;
  }

  .nav-actions [data-lang-toggle] {
    width: auto;
    min-width: 40px;
    padding: 0 10px;
  }

  .mobile-menu { max-width: 100%; }
}

/* Very narrow phones: collapse the "Goibniu" wordmark, keep the logo mark */
@media (max-width: 400px) {
  .nav { padding: 0 10px; }
  .brand { font-size: 0; gap: 0; }
  .brand img { width: 44px; height: 40px; }
  .nav-actions { gap: 5px; }
}

/* =========================================================================
   Tablets & large phones — up to 980px
   ========================================================================= */
@media (max-width: 980px) {
  .section          { padding: 80px 0; }
  .hero             { padding: 64px 0 56px; }
  .cta-band         { padding: 56px 24px; }
  .product .p-info  { padding: 32px; }
  .product .p-media { padding: 28px; }
}

/* =========================================================================
   Phones — up to 720px
   ========================================================================= */
@media (max-width: 720px) {
  .container      { padding-inline: 18px; }
  .section        { padding: 56px 0; }
  .section-sm     { padding: 44px 0; }
  .section-head   { margin-bottom: 32px; }

  .brand          { font-size: 1rem; }
  .brand img      { width: 48px; height: 42px; }

  .hero             { padding: 48px 0 44px; }
  .hero h1          { margin: 16px 0; }
  .hero-cta         { gap: 10px; }
  .hero-cta .btn    { width: 100%; }
  .hero-meta        { gap: 18px; }
  .hero-meta strong { font-size: 1.3rem; }
  .hero-visual      { margin-top: 40px; }

  .card               { padding: 22px; }
  .product .p-info    { padding: 26px; }
  .product .p-info h3 { font-size: 1.45rem; }

  .cta-band                { padding: 44px 20px; }
  .cta-band .hero-cta .btn { width: 100%; }

  .legal-doc table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .footer         { padding: 48px 0 28px; }
  .footer-bottom  { flex-direction: column; gap: 8px; text-align: center; }
}

/* Note: the .hero-cta .btn { width:100% } rule above targets buttons INSIDE
   the hero section only, so it will not stretch the nav CTA icon button. */

/* =========================================================================
   Small phones — up to 480px
   ========================================================================= */
@media (max-width: 480px) {
  .container   { padding-inline: 14px; }
  h1           { font-size: clamp(2rem, 8.5vw, 2.6rem); }
  .spec-grid   { grid-template-columns: 1fr; }
  .btn-lg      { padding: 14px 22px; font-size: 1rem; }
  .icon-btn    { width: 38px; height: 38px; }
  .mock-main       { padding: 18px; }
  .product .p-info { padding: 20px; }
  .legal-content   { padding: 20px; }
  .cta-band        { padding: 36px 16px; }
}