/* ============================================================
   NEFRON SERVIÇOS DE NEFROLOGIA — Site Institucional
   Design system baseado na identidade da marca (#04B2D9)
   ============================================================ */

:root {
  --navy-950: #04202f;
  --navy-900: #072b40;
  --navy-800: #0a3852;
  --navy-700: #0e4666;
  --brand-400: #38d0ee;
  --brand-500: #04b2d9;
  --brand-600: #039dc1;
  --brand-700: #038eb3;
  --brand-800: #016a8b;
  --ink:        #16324a;
  --ink-soft:   #46637a;
  --ink-muted:  #7d94a6;
  --mist:       #f3f8fb;
  --mist-2:     #e8f3f8;
  --line:       #dbe9f0;
  --white:      #ffffff;
  --shadow-sm:  0 2px 10px rgba(7,43,64,.06), 0 1px 3px rgba(7,43,64,.05);
  --shadow-md:  0 10px 30px rgba(7,43,64,.10), 0 4px 12px rgba(7,43,64,.06);
  --shadow-lg:  0 24px 60px rgba(7,43,64,.16), 0 8px 24px rgba(7,43,64,.08);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;
  --radius-pill: 999px;
  --font-display: 'Sora', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(.22, .8, .36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
img[data-random-img] { opacity: 1; transition: opacity .5s var(--ease); }
img[data-random-img].img-swap { opacity: 0; }
a { color: var(--brand-600); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand-700); }
ul { list-style: none; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; color: var(--navy-900); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-mist { background: linear-gradient(180deg, var(--mist) 0%, var(--white) 100%); }
.section-mist-2 { background: var(--mist); }
.section-dark { background: linear-gradient(150deg, var(--navy-900) 0%, var(--navy-800) 55%, #0f4d6e 100%); color: rgba(255,255,255,.85); }
.section-dark h2, .section-dark h3 { color: #fff; }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head h2 { font-size: clamp(30px, 4vw, 42px); margin-top: 14px; }
.section-head p { color: var(--ink-soft); font-size: 17px; margin-top: 16px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .14em; color: var(--brand-600); font-family: var(--font-display);
}
.eyebrow::before { content: ""; width: 26px; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--brand-400), var(--brand-700)); }
.section-dark .eyebrow { color: var(--brand-400); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: var(--radius-pill);
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.btn i { font-size: 1.15em; }
.btn-primary {
  background: linear-gradient(120deg, var(--brand-500), var(--brand-700));
  color: #fff; box-shadow: 0 8px 22px rgba(2,158,193,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(2,158,193,.45); color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; background: rgba(255,255,255,.04); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-2px); }
.btn-outline { border-color: var(--brand-600); color: var(--brand-700); background: transparent; }
.btn-outline:hover { background: var(--brand-600); color: #fff; }
.btn-white { background: #fff; color: var(--navy-800); box-shadow: 0 8px 22px rgba(0,0,0,.18); }
.btn-white:hover { transform: translateY(-2px); color: var(--navy-800); box-shadow: 0 14px 30px rgba(0,0,0,.25); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.scrolled { background: rgba(255,255,255,.95); border-color: var(--line); box-shadow: var(--shadow-sm); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 92px; }

.brand { display: inline-flex; align-items: center; gap: 13px; }
.brand-logo { height: 68px; width: auto; display: block; object-fit: contain; }
.footer-brand .brand-logo { height: 72px; }

@media (max-width: 560px) {
  .brand-logo { height: 56px; }
}
.brand-mark {
  width: 46px; height: 46px; flex: 0 0 46px; border-radius: 14px;
  background: linear-gradient(135deg, var(--brand-400), var(--brand-700));
  display: grid; place-items: center; color: #fff; font-size: 24px;
  box-shadow: inset 0 -8px 16px rgba(7,43,64,.18), 0 6px 14px rgba(2,158,193,.35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-display); font-size: 21px; font-weight: 800; color: var(--navy-900); letter-spacing: -0.03em; }
.brand-text small { font-size: 10.5px; font-weight: 600; color: var(--ink-muted); letter-spacing: .14em; text-transform: uppercase; margin-top: 3px; }
.site-header .brand-text { justify-content: center; }
.site-header .brand-text small { font-size: 15px; letter-spacing: .1em; margin-top: 0; transform: translateY(10px); }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 16px; border-radius: var(--radius-pill);
  font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--ink-soft);
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--brand-700); background: var(--mist-2); }
.nav-links a.active { color: var(--brand-800); background: var(--mist-2); }
.nav-cta { margin-left: 10px; padding: 11px 20px; background: #fff; border: 1.5px solid var(--brand-500); color: var(--brand-700); }
.nav-cta:hover { background: var(--brand-500); color: #fff; border-color: var(--brand-500); }
.nav-cta.active { background: #fff !important; color: var(--brand-700) !important; }
.nav-links .nav-cta { background: #fff; }

.nav-toggle {
  display: none; background: none; border: 0; font-size: 26px; color: var(--navy-900);
  cursor: pointer; padding: 6px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 188px 0 96px; overflow: hidden;
  background: linear-gradient(150deg, var(--navy-950) 0%, var(--navy-800) 60%, #0e4a6b 100%);
  color: rgba(255,255,255,.9);
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(10px); pointer-events: none;
}
.hero::before { width: 520px; height: 520px; top: -180px; right: -120px; background: radial-gradient(circle, rgba(4,178,217,.5), transparent 65%); }
.hero::after { width: 420px; height: 420px; bottom: -160px; left: -120px; background: radial-gradient(circle, rgba(1,106,139,.55), transparent 65%); }

.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-head .eyebrow { color: var(--brand-400); }
.hero-title { font-size: clamp(36px, 5.2vw, 58px); font-weight: 800; color: #fff; margin: 18px 0 20px; letter-spacing: -0.03em; }
.hero-title em { font-style: normal; background: linear-gradient(120deg, var(--brand-400), #6fe6ff); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 18px; color: rgba(255,255,255,.75); max-width: 520px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

.hero-chips { display: flex; gap: 18px; margin-top: 40px; flex-wrap: wrap; }
.hero-chip { display: flex; align-items: center; gap: 10px; font-size: 13.5px; font-weight: 600; color: rgba(255,255,255,.85); }
.hero-chip i { width: 34px; height: 34px; border-radius: 10px; background: rgba(255,255,255,.1); display: grid; place-items: center; color: var(--brand-400); font-size: 16px; }

.hero-visual { position: relative; }
.hero-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); transform: rotate(-1.2deg);
}
.hero-card img { width: 100%; height: 520px; object-fit: cover; }
.hero-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(4,32,47,.55)); }

.hero-float {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,.96); color: var(--ink); border-radius: 16px;
  padding: 14px 18px; box-shadow: var(--shadow-md);
  animation: floaty 5s ease-in-out infinite;
}
.hero-float i { font-size: 22px; color: var(--brand-600); }
.hero-float strong { display: block; font-family: var(--font-display); font-size: 14px; color: var(--navy-900); line-height: 1.2; }
.hero-float small { font-size: 12px; color: var(--ink-muted); }
.hero-float.one { top: 30px; left: -24px; }
.hero-float.two { bottom: 46px; right: -20px; animation-delay: 1.6s; }

@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- Cards ---------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card i.ic {
  width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center;
  font-size: 25px; margin-bottom: 20px;
  background: var(--mist-2); color: var(--brand-700);
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--ink-soft); font-size: 14.5px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ---------- Galeria de estrutura (quadrado) ---------- */
.galeria { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.galeria figure { position: relative; margin: 0; aspect-ratio: 1 / 1; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow-sm); background: #0e3550; }
.galeria img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s var(--ease); }
.galeria figure:hover img { transform: scale(1.06); }
.galeria figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 34px 16px 14px; color: #fff; font-size: 13px; font-weight: 600;
  background: linear-gradient(180deg, transparent, rgba(4, 32, 47, .82));
  opacity: 0; transform: translateY(8px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.galeria figure:hover figcaption, .galeria figure:focus-within figcaption { opacity: 1; transform: none; }
.galeria-4 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Split feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split-media { position: relative; }
.split-media .frame { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.split-media .frame img { width: 100%; height: 480px; object-fit: cover; }
.split-media .tag {
  position: absolute; bottom: -22px; left: 24px; right: 24px;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-md);
  padding: 16px 20px; display: flex; align-items: center; gap: 14px;
}
.split-media .tag i { font-size: 26px; color: var(--brand-600); }
.split-media .tag strong { font-family: var(--font-display); font-size: 15px; color: var(--navy-900); display: block; line-height: 1.25; }
.split-media .tag small { font-size: 12.5px; color: var(--ink-muted); }

.split-body .section-head { margin-bottom: 28px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; color: var(--ink-soft); font-size: 15.5px; }
.check-list i { color: var(--brand-600); font-size: 19px; margin-top: 2px; flex: 0 0 auto; }

/* ---------- Steps / timeline ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding: 28px 24px 24px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-display); font-weight: 800; font-size: 15px;
  color: var(--brand-600); letter-spacing: .05em;
}
.step i.ic { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; font-size: 22px; color: #fff; background: linear-gradient(135deg, var(--brand-500), var(--brand-700)); margin: 14px 0 18px; }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Dark CTA ---------- */
.cta-band { text-align: center; }
.cta-band h2 { color: #fff; font-size: clamp(28px, 4vw, 40px); margin: 16px auto 18px; max-width: 640px; }
.cta-band p { color: rgba(255,255,255,.75); max-width: 560px; margin: 0 auto 30px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Accordion ---------- */
.accordion { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.acc-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); overflow: hidden;
}
.acc-head {
  width: 100%; border: 0; background: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 26px; font-family: var(--font-display); font-weight: 600;
  font-size: 16.5px; color: var(--navy-900); text-align: left;
  transition: color .2s;
}
.acc-head:hover { color: var(--brand-700); }
.acc-head i { transition: transform .3s var(--ease); color: var(--brand-600); flex: 0 0 auto; }
.acc-item.open .acc-head i { transform: rotate(45deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.acc-body-inner { padding: 0 26px 24px; color: var(--ink-soft); font-size: 15px; }
.acc-item.open .acc-body-inner { padding-top: 2px; }

/* ---------- Contact / Info ---------- */
.info-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.info-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-sm);
}
.info-card > i { width: 46px; height: 46px; flex: 0 0 46px; border-radius: 13px; display: grid; place-items: center; font-size: 21px; color: #fff; background: linear-gradient(135deg, var(--brand-500), var(--brand-700)); }
.info-card h3 { font-size: 15.5px; margin-bottom: 4px; }
.info-card p { font-size: 14px; color: var(--ink-soft); }
.info-card a { color: var(--ink-soft); font-size: 14px; }
.social-links { display: flex; flex-direction: column; gap: 7px; }
.social-links a { display: flex; align-items: center; gap: 9px; transition: color .2s var(--ease); }
.social-links a:hover { color: var(--brand-700); }
.social-links i { font-size: 16px; color: var(--brand-600); }

.map-frame { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--line); }
.map-frame iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ---------- Team ---------- */
.team-card { text-align: center; padding: 30px 24px; }
.team-avatar {
  width: 92px; height: 92px; margin: 0 auto 18px; border-radius: 50%;
  background: linear-gradient(135deg, var(--mist-2), var(--mist));
  display: grid; place-items: center; color: var(--brand-700); font-size: 38px;
  border: 2px solid var(--line);
}
.team-card h3 { font-size: 17px; }
.team-card span {
  display: inline-block; margin-top: 4px; font-size: 12.5px; font-weight: 600;
  color: var(--brand-700); text-transform: uppercase; letter-spacing: .08em;
}
.team-card p { margin-top: 12px; font-size: 13.5px; color: var(--ink-muted); }

/* ---------- Banner (page top) ---------- */
.page-banner {
  position: relative; padding: 168px 0 72px; overflow: hidden;
  background: linear-gradient(150deg, var(--navy-950) 0%, var(--navy-800) 60%, #0e4a6b 100%);
  color: #fff; text-align: center;
}
.page-banner::before { content: ""; position: absolute; width: 460px; height: 460px; top: -180px; left: -140px; border-radius: 50%; background: radial-gradient(circle, rgba(4,178,217,.45), transparent 65%); pointer-events: none; }
.page-banner h1 { color: #fff; font-size: clamp(34px, 4.6vw, 50px); margin: 16px auto 14px; max-width: 760px; }
.page-banner p { color: rgba(255,255,255,.78); font-size: 18px; max-width: 640px; margin: 0 auto; position: relative; }
.crumb { font-size: 13px; color: rgba(255,255,255,.6); }
.crumb a { color: var(--brand-400); }
.crumb a:hover { color: #fff; }

/* ---------- Values ---------- */
.value-card { text-align: center; }
.value-card i.ic {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 20px;
  background: linear-gradient(135deg, var(--mist-2), var(--mist));
  display: grid; place-items: center; font-size: 30px; color: var(--brand-700);
}

/* ---------- Quote ---------- */
.quote-band { text-align: center; }
.quote-band blockquote {
  font-family: var(--font-display); font-weight: 600; font-size: clamp(22px, 3.4vw, 34px);
  color: #fff; letter-spacing: -0.02em; line-height: 1.35;
  max-width: 820px; margin: 0 auto 24px;
  text-wrap: balance;
}
.quote-band blockquote::before { content: "“"; display: block; font-size: 56px; color: var(--brand-400); line-height: .6; margin-bottom: 8px; }

/* ---------- Timeline (horizontal treatment) ---------- */
.how-line { position: relative; }
.how-line .grid-4 { position: relative; }

/* ---------- Disclaimer ---------- */
.disclaimer {
  font-size: 12.5px; color: var(--ink-muted); line-height: 1.7;
  background: var(--mist); border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 16px 20px; max-width: 820px; margin: 40px auto 0 !important;
}
.disclaimer i { color: var(--brand-600); margin-right: 6px; }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 62px; height: 62px; border-radius: 50%;
  display: grid; place-items: center;
  background: #25d366; color: #fff; font-size: 34px;
  box-shadow: 0 10px 26px rgba(37,211,102,.45), 0 4px 10px rgba(0,0,0,.18);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.wa-float:hover { transform: scale(1.08); box-shadow: 0 14px 32px rgba(37,211,102,.55), 0 6px 14px rgba(0,0,0,.22); color: #fff; }
@media (max-width: 560px) {
  .wa-float { right: 16px; bottom: 16px; width: 54px; height: 54px; font-size: 30px; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,.72); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand-text strong { color: #fff; }
.footer-brand .brand-text small { color: rgba(255,255,255,.55); }
.footer-about { margin: 20px 0 22px; font-size: 14px; color: rgba(255,255,255,.6); max-width: 300px; }
.socials { display: flex; gap: 12px; }
.socials a {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255,255,255,.08); color: #fff; font-size: 18px;
  transition: background .25s, transform .25s var(--ease);
}
.socials a:hover { background: var(--brand-500); transform: translateY(-3px); color: #fff; }

.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 20px; letter-spacing: .02em; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul a { color: rgba(255,255,255,.65); font-size: 14.5px; }
.footer-col ul a:hover { color: var(--brand-400); }
.footer-col ul li.lead-tight { color: rgba(255,255,255,.65); font-size: 14.5px; line-height: 1.6; }
.footer-col ul li i { color: var(--brand-400); margin-right: 8px; width: 18px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255,255,255,.5);
}
.footer-bottom a { color: rgba(255,255,255,.7); }
.footer-bottom a:hover { color: var(--brand-400); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); 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; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .galeria, .galeria-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .info-strip { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 900px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 44px; }
  .hero { padding-top: 172px; }
  .hero-card img { height: 400px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .galeria figcaption { opacity: 1; transform: none; }

  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 92px; left: 0; right: 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 6px;
    background: #fff; padding: 20px 24px 28px;
    box-shadow: var(--shadow-md); border-bottom: 1px solid var(--line);
    transform: translateY(-140%); transition: transform .35s var(--ease);
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 13px 16px; font-size: 15.5px; }
  .nav-cta { margin: 8px 0 0; justify-content: center; }
}

@media (max-width: 560px) {
  .section { padding: 72px 0; }
  .grid-4, .steps, .info-strip { grid-template-columns: 1fr; }
  .hero-float.one { left: 8px; }
  .hero-float.two { right: 8px; bottom: 30px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { justify-content: center; text-align: center; }
}