/* ============================================================
   Feexio — Global Styles  v2
   Brand: Amigable · Simple · Accesible
   Fonts: Bricolage Grotesque (display) · Nunito (body)
   Colors: OKLCH with teal-tinted neutrals
   ============================================================ */

/* Fonts loaded via <link rel="preload"> in HTML for non-render-blocking delivery */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  /* Brand accent — teal */
  --accent:       oklch(66% 0.152 177deg);
  --accent-dark:  oklch(58% 0.145 177deg);
  --accent-glow:  oklch(66% 0.152 177deg / 0.15);

  /* Light mode surfaces — teal-tinted neutrals */
  --bg:           oklch(98.5% 0.006 177deg);
  --bg-card:      oklch(100% 0 0);
  --bg-nav:       oklch(98.5% 0.006 177deg / 0.93);
  --text:         oklch(17% 0.012 177deg);
  --text-muted:   oklch(54% 0.012 177deg);
  --border:       oklch(90.5% 0.012 177deg);
  --shadow:       0 2px 16px oklch(50% 0.05 177deg / 0.08);
  --shadow-hover: 0 8px 32px oklch(50% 0.05 177deg / 0.15);

  /* Typography */
  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body:    'Nunito', system-ui, sans-serif;

  /* Spacing — 4pt scale */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  /* Shape */
  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  /* Motion — ease-out-expo for natural deceleration */
  --ease:       cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 0.24s var(--ease);
}

[data-theme="dark"] {
  --bg:           oklch(13.5% 0.014 177deg);
  --bg-card:      oklch(17.5% 0.014 177deg);
  --bg-nav:       oklch(13.5% 0.014 177deg / 0.94);
  --text:         oklch(93% 0.008 177deg);
  --text-muted:   oklch(65% 0.01 177deg);
  --border:       oklch(26% 0.014 177deg);
  --shadow:       0 2px 16px oklch(0% 0 0 / 0.40);
  --shadow-hover: 0 8px 32px oklch(0% 0 0 / 0.55);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Focus — accessible, brand-coloured */
:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Layout ─────────────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 var(--space-6); }
.section    { padding: 72px 0; }
.section-sm { padding: 48px 0; }

/* ── Nav ────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-color var(--transition);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: var(--space-4);
}
.nav-logo {
  font-family: var(--font-display); font-weight: 800; font-size: 1.5rem;
  color: var(--text); letter-spacing: -0.5px; text-decoration: none;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: var(--space-2); }
.nav-links a {
  font-size: 0.9rem; font-weight: 600; color: var(--text-muted);
  padding: 6px var(--space-3); border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--border); }
.nav-controls { display: flex; align-items: center; gap: var(--space-2); }
.btn-icon {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--bg-card);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all var(--transition); font-size: 1rem;
  color: var(--text-muted);
}
.btn-icon:hover { border-color: var(--accent); color: var(--accent); transform: scale(1.05); }
.lang-btn {
  font-family: var(--font-body); font-size: 0.78rem; font-weight: 700;
  padding: 6px var(--space-3); border-radius: 20px;
  border: 1px solid var(--border); background: var(--bg-card);
  cursor: pointer; color: var(--text-muted); transition: all var(--transition);
  letter-spacing: 0.5px;
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
}
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }
.mobile-menu { display: none; flex-direction: column; padding: var(--space-3) var(--space-6) var(--space-4); gap: 4px; border-top: 1px solid var(--border); }
.mobile-menu a { font-size: 0.95rem; font-weight: 600; color: var(--text-muted); padding: 10px var(--space-3); border-radius: var(--radius-sm); text-decoration: none; transition: all var(--transition); }
.mobile-menu a:hover { color: var(--text); background: var(--border); }
.mobile-menu.open { display: flex; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  padding: 96px 0 80px;
  text-align: center;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% -10%,
    oklch(66% 0.152 177deg / 0.14),
    transparent 65%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent-glow); border: 1px solid oklch(66% 0.152 177deg / 0.3);
  border-radius: 20px; padding: 5px 14px;
  font-size: 0.78rem; font-weight: 700; color: var(--accent);
  letter-spacing: 0.6px; margin-bottom: 28px; text-transform: uppercase;
}
.hero h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  line-height: 1.1; letter-spacing: -1.5px;
  color: var(--text); margin-bottom: 20px;
}
.hero h1 .accent { color: var(--accent); }
.hero p {
  font-size: clamp(1rem, 2vw, 1.15rem); color: var(--text-muted);
  max-width: 560px; margin: 0 auto var(--space-8); font-weight: 400;
  line-height: 1.75;
}
.hero-btns { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: var(--accent); color: oklch(100% 0 0);
  font-family: var(--font-body); font-weight: 700; font-size: 0.95rem;
  padding: 13px 28px; border-radius: 50px;
  border: none; cursor: pointer; transition: all var(--transition);
  box-shadow: 0 4px 20px oklch(66% 0.152 177deg / 0.35);
}
.btn-primary:hover {
  background: var(--accent-dark); transform: translateY(-2px);
  box-shadow: 0 8px 28px oklch(66% 0.152 177deg / 0.45);
  text-decoration: none; color: oklch(100% 0 0);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  background: transparent; color: var(--text);
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  padding: 12px 28px; border-radius: 50px;
  border: 1.5px solid var(--border); cursor: pointer; transition: all var(--transition);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.hero-stats {
  display: flex; justify-content: center; gap: 40px;
  margin-top: var(--space-12); flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  font-family: var(--font-display); font-weight: 800; font-size: 1.8rem;
  color: var(--text); letter-spacing: -1px;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.6px; margin-top: 2px; font-weight: 600; }

/* ── Ad Placeholder ──────────────────────────────────────────── */
.ad-placeholder {
  background: var(--bg-card); border: 1.5px dashed var(--border);
  border-radius: var(--radius); padding: var(--space-4);
  text-align: center; color: var(--text-muted);
  font-size: 0.78rem; letter-spacing: 0.5px; text-transform: uppercase;
  font-weight: 600; margin: 0 auto;
}
.ad-banner { max-width: 728px; height: 90px; display: flex; align-items: center; justify-content: center; }
.ad-rectangle { max-width: 400px; height: 100px; display: flex; align-items: center; justify-content: center; }

/* ── Section headers ─────────────────────────────────────────── */
.section-header { margin-bottom: var(--space-12); }
.section-header h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.7rem, 3vw, 2.2rem); letter-spacing: -0.8px;
  color: var(--text); margin-bottom: var(--space-2);
}
.section-header p { color: var(--text-muted); font-size: 1rem; max-width: 520px; line-height: 1.7; }
.section-label {
  font-size: 0.73rem; font-weight: 700; color: var(--accent);
  text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: var(--space-2);
}

/* ── Calculator Cards ───────────────────────────────────────── */
.calc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-6); }
.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.calc-card:hover { box-shadow: var(--shadow-hover); border-color: var(--accent); transform: translateY(-4px); }
.calc-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--accent-glow); display: flex; align-items: center;
  justify-content: center; font-size: 1.3rem; margin-bottom: var(--space-4);
  border: 1px solid oklch(66% 0.152 177deg / 0.2);
}
.calc-card h2 {
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
  color: var(--text); margin-bottom: 6px; letter-spacing: -0.3px;
}
.calc-card > p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block; font-size: 0.8rem; font-weight: 700;
  color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}
.form-group input {
  width: 100%; padding: 11px 14px;
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.calc-result {
  margin-top: var(--space-4); padding: 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); display: none;
}
.calc-result.visible { display: block; }
.result-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 0;
}
.result-row + .result-row { border-top: 1px solid var(--border); }
.result-label { font-size: 0.82rem; color: var(--text-muted); }
.result-value { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; color: var(--text); }
.result-value.accent { color: var(--accent); }

/* ── SEO Content ────────────────────────────────────────────── */
.seo-section { background: var(--bg-card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.seo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-8); }
.seo-block h3 { font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--text); margin-bottom: var(--space-2); }
.seo-block p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.75; }

/* ── Blog Cards ─────────────────────────────────────────────── */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 28px; }
.blog-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: all var(--transition);
}
.blog-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: var(--accent); }
.blog-card-img {
  width: 100%; height: 180px;
  background: linear-gradient(135deg, var(--accent-glow), var(--border));
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; overflow: hidden;
}
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card-body { padding: 22px; }
.blog-tag {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  color: var(--accent); background: var(--accent-glow);
  padding: 3px 10px; border-radius: 20px; margin-bottom: 10px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.blog-card h3 {
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  color: var(--text); margin-bottom: var(--space-2); line-height: 1.35; letter-spacing: -0.2px;
}
.blog-card p { font-size: 0.87rem; color: var(--text-muted); margin-bottom: var(--space-4); line-height: 1.65; }
.blog-meta { font-size: 0.78rem; color: var(--text-muted); display: flex; gap: var(--space-3); }
.read-more { font-size: 0.85rem; font-weight: 700; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; }
.read-more:hover { text-decoration: none; gap: var(--space-2); }

/* ── Article Page ───────────────────────────────────────────── */
.article-header { padding: 64px 0 48px; border-bottom: 1px solid var(--border); }
.article-header h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -1px;
  color: var(--text); margin-bottom: var(--space-4); line-height: 1.15;
}
.article-meta { display: flex; gap: 20px; flex-wrap: wrap; color: var(--text-muted); font-size: 0.85rem; }
.article-body { max-width: 720px; margin: 0 auto; padding: 48px var(--space-6); }
.article-body h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--text); margin: 36px 0 var(--space-3); letter-spacing: -0.4px; }
.article-body h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: var(--text); margin: 28px 0 var(--space-2); }
.article-body p { font-size: 1rem; color: var(--text-muted); line-height: 1.85; margin-bottom: 18px; }
.article-body ul { padding-left: 20px; margin-bottom: 18px; }
.article-body li { font-size: 0.97rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 6px; }
.article-body strong { color: var(--text); font-weight: 700; }

/* ── About ──────────────────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-text h2 { font-family: var(--font-display); font-weight: 800; font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -1px; color: var(--text); margin-bottom: 20px; }
.about-text p { color: var(--text-muted); font-size: 1rem; line-height: 1.85; margin-bottom: var(--space-4); }
.values-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-top: var(--space-8); }
.value-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: border-color var(--transition); }
.value-item:hover { border-color: var(--accent); }
.value-icon { font-size: 1.4rem; margin-bottom: var(--space-2); }
.value-item h4 { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; color: var(--text); margin-bottom: 4px; }
.value-item p { font-size: 0.83rem; color: var(--text-muted); margin: 0; }
.about-visual {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 40px; text-align: center;
  box-shadow: var(--shadow);
}
.about-logo-big {
  font-family: var(--font-display); font-weight: 800; font-size: 3.5rem;
  color: var(--text); letter-spacing: -2px; margin-bottom: var(--space-2);
}
.about-logo-big span { color: var(--accent); }
.about-tagline { color: var(--text-muted); font-size: 0.95rem; }
.about-numbers { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); margin-top: 28px; }
.about-num-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-4); }
.about-num-card .n { font-family: var(--font-display); font-weight: 800; font-size: 1.8rem; color: var(--accent); }
.about-num-card .l { font-size: 0.8rem; color: var(--text-muted); }

/* ── Contact ────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; align-items: start; }
.contact-info h2 { font-family: var(--font-display); font-weight: 800; font-size: clamp(1.8rem, 3.5vw, 2.4rem); letter-spacing: -1px; color: var(--text); margin-bottom: var(--space-4); }
.contact-info p { color: var(--text-muted); margin-bottom: var(--space-8); line-height: 1.75; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.contact-item-icon { width: 40px; height: 40px; background: var(--accent-glow); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; border: 1px solid oklch(66% 0.152 177deg / 0.2); }
.contact-item-text { font-size: 0.9rem; color: var(--text-muted); }
.contact-item-text strong { color: var(--text); display: block; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 2px; font-weight: 700; }
.contact-form { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-group textarea {
  width: 100%; padding: 11px 14px;
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font-body); font-size: 0.95rem; resize: vertical;
  min-height: 120px; transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-group select {
  width: 100%; padding: 11px 14px;
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: var(--font-body); font-size: 0.95rem; outline: none;
  transition: border-color var(--transition); cursor: pointer;
}
.form-group select:focus { border-color: var(--accent); }
.form-success { background: var(--accent-glow); border: 1px solid oklch(66% 0.152 177deg / 0.3); border-radius: var(--radius-sm); padding: 14px 18px; font-size: 0.9rem; color: var(--accent); font-weight: 600; display: none; margin-top: var(--space-4); }
.form-success.visible { display: block; }

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  background: var(--bg-card); border-top: 1px solid var(--border);
  padding: 48px 0 28px;
}
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
.footer-brand { max-width: 280px; }
.footer-logo { font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; color: var(--text); letter-spacing: -0.5px; margin-bottom: var(--space-2); }
.footer-logo span { color: var(--accent); }
.footer-brand p { font-size: 0.87rem; color: var(--text-muted); line-height: 1.65; }
.footer-col h4 { font-size: 0.78rem; font-weight: 700; color: var(--text); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 0.87rem; color: var(--text-muted); margin-bottom: var(--space-2); transition: color var(--transition); text-decoration: none; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-3); }
.footer-copy { font-size: 0.82rem; color: var(--text-muted); }

/* ── Page Header ────────────────────────────────────────────── */
.page-hero { padding: 72px 0 56px; border-bottom: 1px solid var(--border); }
.page-hero h1 { font-family: var(--font-display); font-weight: 800; font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -1.2px; color: var(--text); margin-bottom: var(--space-3); }
.page-hero p { color: var(--text-muted); font-size: 1.05rem; max-width: 560px; line-height: 1.75; }

/* ── Legal Pages ────────────────────────────────────────────── */
.legal-body { max-width: 780px; padding: 48px 0 72px; }
.legal-body h2 { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; color: var(--text); margin: 32px 0 10px; }
.legal-body p, .legal-body li { font-size: 0.95rem; color: var(--text-muted); line-height: 1.85; margin-bottom: var(--space-3); }
.legal-body ul { padding-left: 20px; }

/* ── Breadcrumbs ────────────────────────────────────────────── */
.breadcrumbs { font-size: 0.82rem; color: var(--text-muted); margin-bottom: var(--space-3); }
.breadcrumbs a { color: var(--accent); text-decoration: none; }
.breadcrumbs span { margin: 0 6px; }

/* ── Utilities ──────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-8  { margin-top: var(--space-2); }
.mt-16 { margin-top: var(--space-4); }
.mt-24 { margin-top: var(--space-6); }
.mt-48 { margin-top: var(--space-12); }
.mb-0  { margin-bottom: 0 !important; }
.divider { height: 1px; background: var(--border); margin: 40px 0; }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up    { animation: fadeUp 0.5s var(--ease) both; }
.fade-up-d1 { animation-delay: 0.08s; }
.fade-up-d2 { animation-delay: 0.16s; }
.fade-up-d3 { animation-delay: 0.24s; }

/* ── Reduced Motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero { padding: 64px 0 56px; }
  .hero-stats { gap: 24px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; gap: var(--space-8); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .calc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .section { padding: 48px 0; }
  .hero h1 { letter-spacing: -1px; }
  .hero-btns { flex-direction: column; align-items: center; }
}

/* ── Logo SVG switching (light / dark mode) ──────────────────── */
.nav-logo { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: 32px; width: auto; display: block; transition: opacity var(--transition); }
.logo-img--dark  { display: none; }
.logo-img--light { display: block; }
[data-theme="dark"] .logo-img--light { display: none; }
[data-theme="dark"] .logo-img--dark  { display: block; }
.nav-logo:hover .logo-img { opacity: 0.82; }

/* Footer logo sizing */
footer .logo-img { height: 26px; }