:root {
  --color-primary: #0891B2;
  --color-secondary: #22D3EE;
  --color-accent: #059669;
  --color-neutral-dark: #164E63;
  --color-neutral-light: #ECFEFF;
  --color-bg: #F8FEFF;
  --color-text: #0F2A33;
  --color-muted: #4F6B73;
  --color-border: rgba(22, 78, 99, 0.12);
  --font-heading: 'Manrope', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius-card: 20px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 20px rgba(22, 78, 99, 0.06);
  --shadow-md: 0 12px 40px -12px rgba(22, 78, 99, 0.18);
  --shadow-lg: 0 30px 60px -30px rgba(8, 145, 178, 0.35);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-neutral-dark); }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-neutral-dark); line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 .75rem; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* === Layout === */
.container { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 1.25rem; }
.container.narrow { max-width: 760px; }
.section { padding-block: 3.5rem; }
.section.narrow { padding-block: 3rem; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 2.5rem; }
.section-head p { color: var(--color-muted); }
.center { text-align: center; }
.lede { font-size: 1.125rem; color: var(--color-muted); }
.eyebrow { text-transform: uppercase; font-size: .75rem; letter-spacing: .14em; font-weight: 600; color: var(--color-primary); margin-bottom: 1rem; }

/* === Header / Nav === */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(248, 254, 255, 0.78);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--color-border);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}
.site-header.scrolled { background: rgba(248, 254, 255, 0.92); box-shadow: 0 6px 24px -16px rgba(22, 78, 99, 0.25); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .75rem; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 72px; width: auto; display: block; }
.nav-toggle { background: transparent; border: 1px solid var(--color-border); border-radius: 10px; padding: .5rem; color: var(--color-neutral-dark); display: inline-flex; }
.primary-nav { display: none; flex-direction: column; gap: 1rem; }
.primary-nav.is-open { display: flex; position: absolute; top: 100%; left: 0; right: 0; padding: 1.25rem 1.25rem 1.5rem; background: var(--color-neutral-light); border-bottom: 1px solid var(--color-border); }
.primary-nav a { color: var(--color-neutral-dark); font-weight: 500; position: relative; padding-block: .25rem; }
.primary-nav a[aria-current="page"] { color: var(--color-primary); }

@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .primary-nav { display: flex; flex-direction: row; align-items: center; gap: 1.75rem; position: static; padding: 0; background: transparent; border: 0; }
  .primary-nav a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--color-primary); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
  .primary-nav a:not(.btn):hover::after,
  .primary-nav a[aria-current="page"]::after { transform: scaleX(1); }
  .logo img { height: 96px; }
}

/* === Buttons === */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .85rem 1.4rem; border-radius: 999px; font-weight: 600; font-family: var(--font-heading); border: 1px solid transparent; transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease); white-space: nowrap; }
.btn-sm { padding: .55rem 1rem; font-size: .9rem; }
.btn-primary { background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark)); color: #fff; box-shadow: 0 12px 30px -12px rgba(8, 145, 178, 0.55); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -14px rgba(8, 145, 178, 0.65); color: #fff; }
.btn-accent { background: var(--color-accent); color: #fff; box-shadow: 0 12px 30px -12px rgba(5, 150, 105, 0.55); }
.btn-accent:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 18px 40px -14px rgba(5, 150, 105, 0.65); }
.btn-ghost { background: rgba(8, 145, 178, 0.08); color: var(--color-neutral-dark); border-color: var(--color-border); }
.btn-ghost:hover { background: rgba(8, 145, 178, 0.14); transform: translateY(-2px); color: var(--color-neutral-dark); }
.btn:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 3px; }

/* === Hero (hero-card archetype) === */
.hero-card-section {
  position: relative;
  padding-block: 3rem 4rem;
  background:
    radial-gradient(circle at 20% 0%, rgba(34, 211, 238, 0.18), transparent 55%),
    radial-gradient(circle at 90% 30%, rgba(5, 150, 105, 0.12), transparent 60%),
    linear-gradient(180deg, var(--color-neutral-light), var(--color-bg));
  overflow: hidden;
}
.hero-card {
  max-width: 920px; margin-inline: auto;
  padding: 2.25rem 1.5rem;
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  text-align: left;
}
.hero-card h1 { margin-top: .25rem; }
.hero-sub { font-size: 1.125rem; color: var(--color-muted); max-width: 52ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1.5rem 1.75rem; }
.hero-figure { margin: 1.5rem 0 0; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-md); }
.hero-figure img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }

@media (min-width: 768px) {
  .hero-card { padding: 3.5rem 3rem; }
  .hero-card-section { padding-block: 4.5rem 5.5rem; }
}

/* === Cards / Grids === */
.grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } }
.card-grid { list-style: none; padding: 0; margin: 0; }
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card h3 { margin-top: .25rem; }
.card p { color: var(--color-muted); margin-bottom: 0; }
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.18), rgba(8, 145, 178, 0.18));
  color: var(--color-primary); margin-bottom: 1rem;
}

/* === Split section === */
.split-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; align-items: center; }
.split-figure { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-md); }
.split-figure img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
@media (min-width: 900px) { .split-grid { grid-template-columns: 1.05fr 1fr; gap: 4rem; } }

/* === Testimonial === */
.testimonial-section { background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.06)); }
.testimonial { margin: 0; padding: 2rem 1.25rem; text-align: center; }
.testimonial p { font-family: var(--font-heading); font-size: clamp(1.15rem, 2.2vw, 1.5rem); color: var(--color-neutral-dark); line-height: 1.45; max-width: 56ch; margin-inline: auto; }
.testimonial cite { display: block; margin-top: 1rem; font-style: normal; font-size: .95rem; color: var(--color-muted); }

/* === CTA band === */
.cta-band {
  margin: 3rem 0;
  padding: 3rem 1.5rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark));
  color: #fff; text-align: center;
  border-radius: 0;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.85); max-width: 56ch; margin-inline: auto; }
.cta-band .btn-accent { margin-top: .5rem; }
@media (min-width: 768px) { .cta-band { padding: 4rem 2rem; } }

/* === Pricing === */
.pricing-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .pricing-grid-3 { grid-template-columns: repeat(3, 1fr); align-items: stretch; } }
.pricing-card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 2.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pricing-card--featured { border-color: var(--color-accent); border-width: 2px; box-shadow: var(--shadow-md); }
.pricing-card__badge {
  position: absolute; top: -12px; right: 1.25rem;
  background: var(--color-accent); color: #fff;
  font-size: .75rem; font-weight: 700; letter-spacing: .04em;
  padding: .35rem .75rem; border-radius: 999px;
}
.pricing-card__plan { margin: 0; font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; color: var(--color-primary); }
.pricing-card__price { font-family: var(--font-heading); font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; color: var(--color-neutral-dark); margin: .25rem 0 .75rem; }
.pricing-card__lede { color: var(--color-muted); margin-bottom: 1.25rem; }
.pricing-card__features { list-style: none; padding: 0; margin: 0 0 1.75rem; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.pricing-card__features li { display: flex; gap: .55rem; align-items: flex-start; color: var(--color-text); }
.pricing-card__features li span { color: var(--color-accent); font-weight: 700; }
.pricing-card__cta { align-self: stretch; text-align: center; }

/* === FAQ === */
.faq { display: flex; flex-direction: column; gap: .75rem; }
.faq details { background: #fff; border: 1px solid var(--color-border); border-radius: 14px; padding: 1rem 1.25rem; box-shadow: var(--shadow-sm); }
.faq summary { cursor: pointer; font-family: var(--font-heading); font-weight: 600; color: var(--color-neutral-dark); list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::after { content: "+"; font-size: 1.5rem; color: var(--color-primary); transition: transform .2s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin-top: .75rem; color: var(--color-muted); }

/* === Contact === */
.contact-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: start; } }
.contact-list { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-direction: column; gap: .6rem; }
.contact-list strong { color: var(--color-neutral-dark); }
.contact-form { background: #fff; padding: 2rem; border: 1px solid var(--color-border); border-radius: var(--radius-card); box-shadow: var(--shadow-sm); }
.field { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1rem; }
.field label { font-weight: 600; color: var(--color-neutral-dark); font-size: .9rem; }
.field input, .field textarea {
  font: inherit; padding: .8rem 1rem;
  border: 1px solid var(--color-border); border-radius: 12px;
  background: var(--color-neutral-light); color: var(--color-text);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.25); background: #fff; }

/* === Footer === */
.site-footer { margin-top: 3rem; background: var(--color-neutral-dark); color: rgba(236, 254, 255, 0.85); padding-block: 3rem 1.5rem; }
.site-footer h2 { color: #fff; font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .75rem; }
.site-footer a { color: rgba(236, 254, 255, 0.85); }
.site-footer a:hover { color: var(--color-secondary); }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.2fr 1fr 1.2fr; } }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .5rem; }
.site-footer address { font-style: normal; line-height: 1.7; }
.legal-links { margin-top: 1rem; font-size: .9rem; }
.logo-footer img { height: 64px; width: auto; filter: brightness(0) invert(1); margin-bottom: 1rem; }
.copyright { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.12); font-size: .85rem; color: rgba(236, 254, 255, 0.6); }

/* === Reveal animation === */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* === Cookie banner === */
.cookie-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem;
  display: none; z-index: 9999;
  background: var(--color-neutral-dark); color: var(--color-neutral-light);
  padding: 1.25rem 1.5rem; border-radius: 16px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.45);
  max-width: 540px;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 1rem; font-size: .9rem; line-height: 1.5; }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.cookie-banner__actions .btn-ghost { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.18); }
.cookie-banner__actions .btn-ghost:hover { background: rgba(255,255,255,0.16); color: #fff; }
.cookie-banner__prefs { margin-top: 1rem; display: flex; flex-direction: column; gap: .6rem; font-size: .9rem; }
.cookie-banner__prefs label { display: flex; align-items: center; gap: .5rem; }
.cookie-banner__prefs button { margin-top: .5rem; align-self: flex-start; }