:root {
  --color-primary: #0891B2;
  --color-secondary: #22D3EE;
  --color-accent: #22C55E;
  --color-neutral-dark: #164E63;
  --color-neutral-light: #ECFEFF;
  --color-text: #0B3D4E;
  --color-muted: #5A7783;
  --color-border: rgba(22, 78, 99, 0.12);
  --color-white: #ffffff;
  --font-heading: 'Manrope', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 20px rgba(11, 61, 78, 0.06);
  --shadow-md: 0 12px 40px -12px rgba(11, 61, 78, 0.18);
  --shadow-lg: 0 30px 60px -30px rgba(11, 61, 78, 0.35);
}

/* === Base === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-neutral-dark); line-height: 1.2; margin: 0 0 .6em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-neutral-dark); }
p { margin: 0 0 1em; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--color-neutral-dark); }
img { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: 1180px; margin-inline: auto; padding-inline: 1.25rem; }
.narrow { max-width: 760px; margin-inline: auto; }
.eyebrow { font-family: var(--font-heading); font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--color-primary); font-weight: 600; margin: 0 0 1rem; }
.lede { font-size: 1.125rem; color: var(--color-muted); max-width: 52ch; }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .85rem 1.5rem; border-radius: 999px; font-family: var(--font-heading);
  font-weight: 600; font-size: .95rem; line-height: 1;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
  text-decoration: none;
}
.btn--sm { padding: .55rem 1rem; font-size: .85rem; }
.btn--primary { background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark)); color: var(--color-white); box-shadow: 0 8px 24px -8px rgba(8, 145, 178, 0.55); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -8px rgba(8, 145, 178, 0.65); color: var(--color-white); }
.btn--accent { background: var(--color-accent); color: var(--color-white); }
.btn--accent:hover { transform: translateY(-2px); background: #16A34A; color: var(--color-white); box-shadow: 0 12px 28px -8px rgba(34, 197, 94, 0.5); }
.btn--ghost { background: transparent; color: var(--color-neutral-dark); border-color: rgba(22, 78, 99, 0.18); }
.btn--ghost:hover { background: var(--color-neutral-light); color: var(--color-neutral-dark); }
.btn:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 3px; }

/* === Header / Nav === */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(236, 254, 255, 0.72);
  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 ease, box-shadow .25s ease;
}
.site-header.scrolled { background: rgba(255,255,255,0.92); box-shadow: 0 6px 24px -12px rgba(11, 61, 78, 0.2); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .6rem; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 72px; width: auto; }
@media (min-width: 768px) { .logo img { height: 96px; } }
.logo--footer img { height: 64px; filter: brightness(0) invert(1); opacity: .92; }

.primary-nav { display: none; align-items: center; gap: 1.5rem; }
.primary-nav a { font-family: var(--font-heading); font-weight: 500; color: var(--color-neutral-dark); font-size: .95rem; position: relative; padding: .35rem 0; }
.primary-nav a:not(.btn)::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; 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.is-active::after { transform: scaleX(1); }

.nav-toggle { display: inline-flex; flex-direction: column; gap: 5px; background: transparent; border: 0; padding: .6rem; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-neutral-dark); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .primary-nav { display: flex; }
}
@media (max-width: 899px) {
  .primary-nav {
    display: none; flex-direction: column; align-items: stretch;
    position: absolute; left: 1rem; right: 1rem; top: calc(100% + .5rem);
    background: var(--color-white); border: 1px solid var(--color-border);
    border-radius: var(--radius); padding: 1rem; gap: .5rem;
    box-shadow: var(--shadow-md);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: .7rem .5rem; }
}

/* === Hero card === */
.hero.hero-card { position: relative; padding-block: 3rem 4rem; overflow: hidden; }
.hero-card__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 20% 10%, rgba(34, 211, 238, 0.28), transparent 70%),
    radial-gradient(50% 40% at 90% 30%, rgba(34, 197, 94, 0.12), transparent 70%),
    linear-gradient(180deg, var(--color-neutral-light), var(--color-white));
  z-index: -1;
}
.hero-card__box {
  max-width: 880px; margin-inline: auto;
  background: var(--color-white);
  padding: 2.5rem 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  text-align: left;
}
@media (min-width: 768px) { .hero-card__box { padding: 3.5rem; } }
.hero-card__actions { display: flex; gap: .75rem; flex-wrap: wrap; margin: 1.5rem 0 2rem; }
.hero-card__image { margin: 0; border-radius: var(--radius); overflow: hidden; }
.hero-card__image img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }

/* === Sections === */
.section { padding-block: 4rem; }
@media (min-width: 900px) { .section { padding-block: 5.5rem; } }
.section--muted { background: var(--color-neutral-light); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 3rem; }
.section-head p { color: var(--color-muted); font-size: 1.05rem; }

.intro-grid { display: grid; gap: 2.5rem; align-items: center; }
@media (min-width: 900px) { .intro-grid { grid-template-columns: 1.1fr 1fr; gap: 4rem; } }
.intro-grid__image { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.intro-grid__image img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }

/* === Cards === */
.cards { display: grid; gap: 1.25rem; }
.cards--2 { grid-template-columns: 1fr; }
.cards--3 { grid-template-columns: 1fr; }
.cards--4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .cards--2 { grid-template-columns: repeat(2, 1fr); }
  .cards--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .cards--3 { grid-template-columns: repeat(3, 1fr); }
  .cards--4 { grid-template-columns: repeat(4, 1fr); }
}
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(8,145,178,0.12), rgba(34,211,238,0.18));
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.card p { color: var(--color-muted); margin: 0; font-size: .95rem; }
.card h3 { margin-bottom: .5rem; }
.card--stat .stat-number { font-family: var(--font-heading); font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 800; color: var(--color-accent); line-height: 1; margin: .25rem 0 .25rem; letter-spacing: -0.02em; }

/* === Testimonial === */
.section--testimonial { background: var(--color-neutral-light); }
.testimonial { max-width: 780px; margin: 0 auto; text-align: center; }
.testimonial p { font-family: var(--font-heading); font-size: clamp(1.2rem, 2vw, 1.6rem); line-height: 1.4; color: var(--color-neutral-dark); font-weight: 500; margin-bottom: 1.25rem; }
.testimonial cite { font-style: normal; color: var(--color-muted); font-size: .95rem; }

/* === CTA band === */
.cta-band { padding-block: 4rem; background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark)); color: var(--color-white); position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(40% 60% at 80% 20%, rgba(34, 211, 238, 0.35), transparent 70%); pointer-events: none; }
.cta-band h2 { color: var(--color-white); margin-bottom: .4rem; }
.cta-band p { color: rgba(236, 254, 255, 0.85); margin: 0; }
.cta-band__inner { position: relative; display: flex; flex-direction: column; gap: 1.5rem; align-items: flex-start; }
@media (min-width: 768px) { .cta-band__inner { flex-direction: row; align-items: center; justify-content: space-between; gap: 2rem; } }

/* === FAQ === */
.faq details { border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: .75rem; background: var(--color-white); transition: box-shadow .2s ease; }
.faq details[open] { 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; position: relative; padding-right: 2rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 0; font-size: 1.4rem; font-weight: 400; color: var(--color-primary); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin-top: .75rem; color: var(--color-muted); }

/* === Contact form === */
.contact-form { display: grid; gap: 1.1rem; background: var(--color-white); padding: 2rem; border-radius: var(--radius); border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }
.form-row { display: grid; gap: .4rem; }
.form-row label { font-family: var(--font-heading); font-size: .9rem; font-weight: 600; color: var(--color-neutral-dark); }
.form-row input, .form-row textarea {
  font-family: var(--font-body); font-size: 1rem;
  padding: .75rem .9rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--color-white); color: var(--color-text);
  transition: border-color .2s, box-shadow .2s;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(8,145,178,0.15); }
.form-consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .88rem; color: var(--color-muted); }
.form-consent input { margin-top: .2rem; }

/* === Footer === */
.site-footer { background: var(--color-neutral-dark); color: rgba(236, 254, 255, 0.85); padding-block: 3.5rem 1.5rem; margin-top: 2rem; }
.footer-grid { display: grid; gap: 2rem; }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.2fr 1fr 1.4fr; gap: 3rem; } }
.site-footer h4 { color: var(--color-white); margin-bottom: 1rem; }
.footer-tagline { font-family: var(--font-heading); font-size: 1rem; color: var(--color-secondary); margin-top: .75rem; }
.footer-nav { display: flex; flex-direction: column; gap: .5rem; }
.footer-nav a, .footer-contact a { color: rgba(236, 254, 255, 0.85); }
.footer-nav a:hover, .footer-contact a:hover { color: var(--color-white); }
.footer-legal { font-size: .85rem; margin-top: 1rem; color: rgba(236, 254, 255, 0.7); }
.footer-legal a { color: rgba(236, 254, 255, 0.8); }
.footer-bottom { border-top: 1px solid rgba(236, 254, 255, 0.15); margin-top: 2.5rem; padding-top: 1.25rem; font-size: .85rem; color: rgba(236, 254, 255, 0.65); }

/* === 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: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 640px; margin-inline: auto;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 .9rem; font-size: .92rem; color: rgba(236, 254, 255, 0.9); }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.cookie-banner .btn--ghost { color: var(--color-neutral-light); border-color: rgba(236, 254, 255, 0.25); }
.cookie-banner .btn--ghost:hover { background: rgba(236, 254, 255, 0.08); color: var(--color-white); }
.cookie-banner__prefs { margin-top: 1rem; display: grid; gap: .5rem; padding-top: 1rem; border-top: 1px solid rgba(236,254,255,0.15); }
.cookie-banner__prefs label { display: flex; gap: .5rem; align-items: center; font-size: .9rem; }

/* === Reveal motion === */
.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; }
  html { scroll-behavior: auto; }
}