/* ============================================
   DAIFER Solutions — Industrial Engineering Site
   Vanilla CSS, WordPress-portable
   ============================================ */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #0f172a;
  background: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ---- Theme Variables (DAIFER logo palette: cobalt blue + amber bolt) ---- */
:root {
  --navy-900: #1e3a8a;
  --navy-800: #1e40af;
  --navy-700: #2563eb;
  --navy-600: #3b82f6;
  --navy-50:  #eff6ff;
  --amber: #f59e0b;
  --amber-dark: #ea580c;
  --amber-light: #fef3c7;
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;
  --success: #059669;
  --error: #dc2626;
  --shadow-sm: 0 1px 2px rgba(30, 58, 138, 0.06);
  --shadow-md: 0 4px 14px rgba(30, 58, 138, 0.10);
  --shadow-lg: 0 14px 36px rgba(30, 58, 138, 0.14);
  --radius: 4px;
  --max-w: 1280px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5 { font-family: 'Space Grotesk', sans-serif; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; color: var(--slate-900); }
h1 { font-size: clamp(2.5rem, 5.5vw, 4.5rem); font-weight: 700; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h4 { font-size: 1.25rem; }
p { color: var(--slate-700); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--amber-dark);
  margin-bottom: 1rem;
}
.eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--amber); }

/* ---- Layout ---- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
section { padding: clamp(64px, 10vw, 120px) 0; }
.section-header { max-width: 720px; margin-bottom: 4rem; }

/* ---- Header / Nav ---- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--navy-50);
  transition: var(--transition);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 88px; }
.brand { display: flex; align-items: center; gap: 12px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; color: var(--navy-900); }
.brand-logo { height: 76px; width: auto; display: block; object-fit: contain; }
.brand-logo-footer { height: 96px; }
.site-footer .brand-logo { background: white; padding: 4px; border-radius: 4px; }
.brand-mark {
  width: 36px; height: 36px;
  background: var(--navy-900); color: var(--amber);
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 1rem;
  border-radius: 2px;
}
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--slate-700);
  transition: color var(--transition); position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--navy-900); }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -24px; left: 0; right: 0;
  height: 2px; background: var(--amber);
}
.nav-actions { display: flex; align-items: center; gap: 16px; }
.lang-switch { display: flex; gap: 4px; border: 1px solid var(--slate-200); border-radius: 2px; padding: 2px; }
.lang-switch button {
  padding: 4px 10px; font-size: 0.75rem; font-weight: 600;
  font-family: 'JetBrains Mono', monospace; letter-spacing: 0.05em;
  color: var(--slate-500); border-radius: 2px; transition: var(--transition);
}
.lang-switch button.active { background: var(--navy-900); color: var(--white); }

.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.menu-toggle span { width: 22px; height: 2px; background: var(--navy-900); transition: var(--transition); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem; font-weight: 600;
  border-radius: 4px;
  transition: all var(--transition);
  cursor: pointer; border: 1.5px solid transparent;
  white-space: nowrap;
}
.btn-primary { background: var(--navy-700); color: var(--white); }
.btn-primary:hover { background: var(--navy-800); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-accent { background: var(--amber); color: var(--slate-900); }
.btn-accent:hover { background: var(--amber-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--navy-800); border-color: var(--navy-700); }
.btn-outline:hover { background: var(--navy-700); color: var(--white); }
.btn-ghost { background: transparent; color: var(--navy-800); padding: 8px 0; }
.btn-ghost:hover { color: var(--amber-dark); gap: 14px; }
.btn-arrow { transition: transform var(--transition); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: linear-gradient(160deg, #1e3a8a 0%, #1e40af 60%, #2563eb 100%);
  color: var(--white);
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 30% 50%, black 30%, transparent 75%);
}
.hero::after {
  content: ''; position: absolute; top: -10%; right: -10%;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.28) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  position: relative; display: grid;
  grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: center;
}
.hero h1 { color: var(--white); margin-bottom: 1.5rem; }
.hero h1 .accent { color: var(--amber); display: block; }
.hero p.lead {
  font-size: 1.15rem; color: rgba(255,255,255,0.75);
  max-width: 560px; margin-bottom: 2.5rem;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 32px; margin-top: 4rem;
  padding-top: 2.5rem; border-top: 1px solid rgba(255,255,255,0.1);
}
.stat .num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.25rem; font-weight: 700;
  color: var(--amber); display: block; line-height: 1;
}
.stat .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.12em; color: rgba(255,255,255,0.5);
  margin-top: 8px; display: block;
}
.hero-visual {
  position: relative; aspect-ratio: 4/5; border-radius: 4px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; filter: contrast(1.05); }
.hero-visual::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,22,40,0.6) 100%);
}
.hero-tag {
  position: absolute; bottom: 24px; left: 24px; right: 24px;
  background: rgba(30, 58, 138, 0.88); backdrop-filter: blur(8px);
  padding: 16px 20px; border-left: 2px solid var(--amber);
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: rgba(255,255,255,0.92); letter-spacing: 0.05em;
}
.hero-tag strong { color: var(--amber); display: block; margin-bottom: 4px; font-size: 0.7rem; letter-spacing: 0.15em; }

/* ---- Marquee / Strip ---- */
.strip {
  background: var(--navy-800); color: var(--white);
  padding: 24px 0; border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden; position: relative;
}
.strip-track {
  display: flex; gap: 64px; animation: scroll 40s linear infinite;
  white-space: nowrap; font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.7);
}
.strip-track span { display: inline-flex; align-items: center; gap: 12px; }
.strip-track span::before { content: '◆'; color: var(--amber); font-size: 0.6rem; }
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---- Services / Cards ---- */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
@media (max-width: 1100px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
.service-card {
  position: relative; background: var(--white);
  padding: 40px; border: 1px solid var(--slate-200);
  transition: all var(--transition);
  display: flex; flex-direction: column; gap: 20px;
}
.service-card:hover {
  border-color: var(--navy-900); transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem; color: var(--amber-dark);
  letter-spacing: 0.15em;
}
.service-card .icon {
  width: 56px; height: 56px;
  background: var(--navy-50); color: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px;
}
.service-card .icon svg { width: 28px; height: 28px; }
.service-card h3 { margin-bottom: 4px; }
.service-card ul { list-style: none; margin-top: 8px; }
.service-card ul li {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; border-top: 1px solid var(--slate-100);
  font-size: 0.92rem; color: var(--slate-700);
}
.service-card ul li::before { content: '→'; color: var(--amber-dark); font-weight: 700; }

/* ---- Features split ---- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.split-img { aspect-ratio: 4/3; overflow: hidden; border-radius: 2px; }
.split-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms ease; }
.split-img:hover img { transform: scale(1.04); }
.split ul { list-style: none; margin-top: 1.5rem; }
.split ul li {
  display: flex; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid var(--slate-200);
}
.split ul li:last-child { border-bottom: none; }
.split ul .check {
  flex-shrink: 0; width: 32px; height: 32px;
  background: var(--amber-light); color: var(--amber-dark);
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px; font-weight: 700;
}
.split ul .text strong { display: block; color: var(--navy-900); margin-bottom: 4px; }

/* ---- Products ---- */
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--white); border: 1px solid var(--slate-200);
  overflow: hidden; transition: all var(--transition);
  display: flex; flex-direction: column;
}
.product-card:hover { border-color: var(--navy-900); box-shadow: var(--shadow-md); }
.product-img { aspect-ratio: 4/3; overflow: hidden; background: var(--slate-100); position: relative; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms; }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-cat {
  position: absolute; top: 16px; left: 16px;
  background: var(--navy-900); color: var(--amber);
  padding: 4px 10px; font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.1em;
}
.product-body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.product-body h3 { font-size: 1.25rem; }
.product-body p { font-size: 0.9rem; color: var(--slate-500); flex: 1; }
.product-specs {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  padding-top: 12px; border-top: 1px solid var(--slate-100);
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
}
.product-specs div { display: flex; flex-direction: column; gap: 2px; }
.product-specs strong { color: var(--slate-500); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.65rem; }
.product-specs span { color: var(--navy-900); font-weight: 600; }

/* ---- Configurator ---- */
.config-wrap {
  display: grid; grid-template-columns: 320px 1fr; gap: 48px;
  align-items: start;
}
.config-steps {
  position: sticky; top: 100px;
  list-style: none;
  background: var(--white); padding: 24px;
  border: 1px solid var(--slate-200);
}
.config-steps li {
  display: flex; gap: 14px; padding: 14px 0;
  border-bottom: 1px solid var(--slate-100);
  color: var(--slate-500); font-size: 0.9rem;
}
.config-steps li:last-child { border-bottom: none; }
.config-steps li .step-num {
  flex-shrink: 0; width: 28px; height: 28px;
  border: 1px solid var(--slate-300); border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
}
.config-steps li.active { color: var(--navy-900); font-weight: 600; }
.config-steps li.active .step-num { background: var(--navy-900); color: var(--amber); border-color: var(--navy-900); }
.config-steps li.done .step-num { background: var(--amber); color: var(--navy-900); border-color: var(--amber); }

.config-panel { background: var(--white); border: 1px solid var(--slate-200); padding: 40px; }
.config-step { display: none; }
.config-step.active { display: block; animation: fadeIn 300ms ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.config-step h3 { margin-bottom: 8px; }
.config-step .step-meta { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--amber-dark); letter-spacing: 0.1em; margin-bottom: 24px; }

.choice-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 24px 0; }
.choice-card {
  position: relative; padding: 24px;
  border: 1.5px solid var(--slate-200);
  cursor: pointer; transition: var(--transition);
  background: var(--white); text-align: left;
  display: flex; flex-direction: column; gap: 8px;
}
.choice-card:hover { border-color: var(--navy-900); }
.choice-card.selected { border-color: var(--amber); background: #fffbeb; }
.choice-card.selected::after {
  content: '✓'; position: absolute; top: 12px; right: 12px;
  width: 24px; height: 24px; background: var(--amber); color: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px; font-weight: 700; font-size: 0.85rem;
}
.choice-card .icon { width: 40px; height: 40px; color: var(--navy-900); margin-bottom: 8px; }
.choice-card h4 { font-size: 1rem; margin-bottom: 4px; }
.choice-card p { font-size: 0.85rem; color: var(--slate-500); }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 24px 0; }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 0.8rem; font-weight: 500;
  font-family: 'JetBrains Mono', monospace; letter-spacing: 0.05em;
  color: var(--slate-700); text-transform: uppercase;
}
.field input, .field select, .field textarea {
  padding: 12px 14px;
  border: 1px solid var(--slate-300); border-radius: 2px;
  background: var(--white); color: var(--navy-900);
  transition: var(--transition);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy-900);
  box-shadow: 0 0 0 3px rgba(10,22,40,0.08);
}
.field textarea { resize: vertical; min-height: 100px; }
.field-hint { font-size: 0.8rem; color: var(--slate-500); }

.config-actions {
  display: flex; justify-content: space-between;
  margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--slate-200);
}

.summary-block { background: var(--slate-50); padding: 24px; margin: 24px 0; border-left: 3px solid var(--amber); }
.summary-block h4 { margin-bottom: 16px; font-size: 1rem; }
.summary-row {
  display: flex; justify-content: space-between; padding: 10px 0;
  border-bottom: 1px solid var(--slate-200); font-size: 0.9rem;
}
.summary-row:last-child { border-bottom: none; }
.summary-row .key { color: var(--slate-500); font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; }
.summary-row .val { color: var(--navy-900); font-weight: 600; }

.config-success {
  text-align: center; padding: 48px 24px;
}
.config-success .check-big {
  width: 64px; height: 64px; margin: 0 auto 24px;
  background: var(--amber); color: var(--navy-900);
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; font-size: 2rem; font-weight: 700;
}

/* ---- About / Values ---- */
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card {
  background: var(--white); padding: 32px;
  border: 1px solid var(--slate-200);
  transition: var(--transition);
}
.value-card:hover { border-color: var(--navy-900); transform: translateY(-2px); }
.value-card .num {
  font-family: 'Space Grotesk', sans-serif; font-size: 2.5rem;
  font-weight: 700; color: var(--amber); display: block; margin-bottom: 8px;
}
.value-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.value-card p { font-size: 0.9rem; }

.timeline { max-width: 720px; }
.tl-item {
  position: relative; padding: 24px 0 24px 64px;
  border-left: 1px solid var(--slate-200); margin-left: 24px;
}
.tl-item::before {
  content: attr(data-year); position: absolute; left: -48px; top: 24px;
  width: 96px; padding: 4px 0;
  font-family: 'JetBrains Mono', monospace; font-size: 0.85rem;
  color: var(--amber-dark); font-weight: 600;
  background: var(--white);
}
.tl-item h4 { margin-bottom: 6px; }

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-block {
  padding: 24px; background: var(--white); border-left: 3px solid var(--amber);
  border-top: 1px solid var(--slate-200); border-right: 1px solid var(--slate-200); border-bottom: 1px solid var(--slate-200);
}
.contact-block .label {
  font-family: 'JetBrains Mono', monospace; font-size: 0.7rem;
  color: var(--amber-dark); letter-spacing: 0.15em;
  text-transform: uppercase; margin-bottom: 8px;
}
.contact-block .val { color: var(--navy-900); font-weight: 600; font-size: 1.05rem; }
.contact-block .val a:hover { color: var(--amber-dark); }
.contact-block .sub { color: var(--slate-500); font-size: 0.9rem; margin-top: 4px; }

.contact-form { background: var(--white); padding: 40px; border: 1px solid var(--slate-200); }

/* ---- Footer ---- */
.site-footer {
  background: linear-gradient(180deg, var(--navy-900) 0%, #172554 100%);
  color: rgba(255,255,255,0.78);
  padding: 80px 0 24px; margin-top: 0;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand { color: var(--white); margin-bottom: 16px; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; max-width: 360px; }
.footer-col h5 {
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: var(--amber); letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 16px; font-weight: 500;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 0.9rem; transition: var(--transition); }
.footer-col a:hover { color: var(--amber); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; flex-wrap: wrap; gap: 16px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(120deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: var(--white);
  padding: 80px 0; position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(45deg, transparent 49%, rgba(245,158,11,0.06) 50%, transparent 51%);
  background-size: 16px 16px;
}
.cta-banner .container { position: relative; display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.cta-banner h2 { color: var(--white); max-width: 640px; }

/* ---- Toast / Messages ---- */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  background: var(--navy-900); color: var(--white);
  padding: 16px 20px; border-left: 3px solid var(--amber);
  box-shadow: var(--shadow-lg); transform: translateX(120%);
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 360px; font-size: 0.9rem;
}
.toast.show { transform: translateX(0); }
.toast.error { border-left-color: var(--error); }
.toast.success { border-left-color: var(--success); }

/* Generic 2-up grid (used by PFC educational cards) */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }
.grid-2-spaced { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 32px; padding: 0; }
@media (max-width: 720px) { .grid-2-spaced { grid-template-columns: 1fr; } }

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .hero-grid, .split, .config-wrap, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 24px; }
  .services-grid, .values-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .config-steps { position: static; }
  .config-panel { padding: 24px; }
  .form-grid { grid-template-columns: 1fr; }
}
/* mobile-only items hidden by default on desktop */
.mobile-only { display: none; }

@media (max-width: 720px) {
  .nav-actions .btn-accent:not(.mobile-only) { display: none; }
  .nav-actions .lang-switch:not(.mobile-only) { display: none; }
  .nav-links { display: none; position: absolute; top: 88px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--white); padding: 16px 24px; border-bottom: 1px solid var(--slate-200); align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--slate-100); }
  .nav-links a.active::after { display: none; }
  .nav-links .mobile-only { display: flex; margin-top: 12px; align-self: flex-start; }
  .nav-links .lang-switch.mobile-only { display: inline-flex; }
  .menu-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .hero { padding: 120px 0 64px; }
  .cta-banner .container { flex-direction: column; text-align: center; }
}