:root {
  --color-primary: #0A192F;
  --color-primary-800: #12253F;
  --color-secondary: #00B4D8;
  --color-secondary-soft: rgba(0, 180, 216, 0.12);
  --color-accent: #10B981;
  --color-background: #F8FAFC;
  --color-white: #FFFFFF;
  --color-text: #0A192F;
  --color-text-secondary: #334155;
  --color-border: #E2E8F0;
  --color-border-soft: #E8EDF4;
  --color-muted: #64748B;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(10, 25, 47, 0.06);
  --shadow-card: 0 1px 2px rgba(10, 25, 47, 0.05), 0 16px 40px -16px rgba(10, 25, 47, 0.18);
  --shadow-card-hover: 0 2px 4px rgba(10, 25, 47, 0.06), 0 26px 52px -18px rgba(10, 25, 47, 0.25);
  --max-width: 1160px;
  --nav-height: 72px;
  --gradient-cta: linear-gradient(135deg, #00C6A9 0%, #10B981 55%, #0EA57A 100%);
  --gradient-brand: linear-gradient(90deg, #00B4D8 0%, #3BD0E8 50%, #10B981 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px; line-height: 1.65;
  color: var(--color-text); background-color: var(--color-white);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; }
a { color: var(--color-secondary); text-decoration: none; transition: color 0.18s ease; }
a:hover, a:focus { text-decoration: none; }
::selection { background: rgba(0, 180, 216, 0.22); color: var(--color-primary); }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding-top: 56px; padding-bottom: 56px; }
@media (min-width: 768px) { .section { padding-top: 88px; padding-bottom: 88px; } }
.section-muted { background-color: var(--color-background); }
.section-dark { background-color: var(--color-primary); color: #fff; position: relative; overflow: hidden; }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark .section-title { color: #fff; }
.section-dark p { color: rgba(255,255,255,0.82); }

.section-title { font-size: clamp(1.7rem, 3.6vw, 2.4rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 16px; color: var(--color-primary); }
.section-intro { font-size: 1.125rem; color: var(--color-text-secondary); max-width: 640px; margin-bottom: 48px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-gradient { background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px;
  border: 1px solid rgba(0, 180, 216, 0.4); color: #0891b2; border-radius: 9999px;
  font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 22px; background: rgba(0, 180, 216, 0.08);
}

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 26px; font-size: 1rem; font-weight: 600; border-radius: 12px; border: 1.5px solid transparent; cursor: pointer; transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease, border-color 0.16s ease; text-decoration: none; letter-spacing: -0.01em; }
.btn:focus-visible { outline: 3px solid rgba(0,180,216,0.6); outline-offset: 2px; }
.btn-primary { background: var(--gradient-cta); color: #fff; box-shadow: 0 10px 24px -10px rgba(16,185,129,0.7); }
.btn-primary:hover, .btn-primary:focus { transform: translateY(-1px); box-shadow: 0 16px 32px -10px rgba(16,185,129,0.75); }
.btn-secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover, .btn-secondary:focus { border-color: var(--color-secondary); color: var(--color-secondary); background: rgba(0,180,216,0.04); }
.btn-dark { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-dark:hover, .btn-dark:focus { background: var(--color-primary-800); transform: translateY(-1px); }
.btn-sm { padding: 9px 17px; font-size: 0.875rem; border-radius: 10px; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; border-radius: 14px; }
.btn-block { width: 100%; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.85); backdrop-filter: blur(14px) saturate(160%); -webkit-backdrop-filter: blur(14px) saturate(160%); border-bottom: 1px solid transparent; transition: box-shadow 0.2s ease, border-color 0.2s ease; height: var(--nav-height); }
.site-header.scrolled { box-shadow: 0 1px 0 rgba(10,25,47,0.06), 0 8px 24px -12px rgba(10,25,47,0.12); border-bottom-color: var(--color-border-soft); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 16px; }
.logo-link { display: inline-flex; align-items: center; flex-shrink: 0; }
.logo { height: 38px; width: auto; }
.nav-menu { display: none; list-style: none; margin: 0; padding: 0; gap: 32px; }
.nav-menu a { color: var(--color-text); font-weight: 500; font-size: 0.9375rem; }
.nav-menu a:hover, .nav-menu a:focus { color: var(--color-secondary); }
.nav-actions { display: none; align-items: center; gap: 12px; }
.nav-toggle { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: transparent; border: none; cursor: pointer; color: var(--color-primary); }
.hamburger { display: block; position: relative; width: 22px; height: 2px; background: currentColor; border-radius: 2px; transition: background-color 0.2s; }
.hamburger::before, .hamburger::after { content: ""; position: absolute; left: 0; width: 100%; height: 2px; background: currentColor; border-radius: 2px; transition: transform 0.2s; }
.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }
.nav-open .hamburger { background: transparent; }
.nav-open .hamburger::before { transform: translateY(7px) rotate(45deg); }
.nav-open .hamburger::after { transform: translateY(-7px) rotate(-45deg); }
.mobile-nav { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--color-border); box-shadow: 0 20px 40px -20px rgba(10,25,47,0.2); padding: 16px 24px 24px; }
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a { display: block; padding: 13px 0; color: var(--color-text); font-weight: 500; border-bottom: 1px solid var(--color-border-soft); }
.mobile-nav .nav-actions-mobile { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
@media (min-width: 768px) { .nav-toggle { display: none; } .nav-menu { display: flex; } .nav-actions { display: flex; } .mobile-nav { display: none !important; } }

/* Hero (light, with art) */
.hero { position: relative; overflow: hidden; padding-top: 72px; padding-bottom: 72px; background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(700px 400px at 80% 20%, rgba(0,180,216,0.08), transparent 60%); }
.hero .container { position: relative; display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
@media (min-width: 900px) { .hero .container { grid-template-columns: 1.05fr 1fr; } }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); font-weight: 800; line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 20px; color: var(--color-primary); }
.hero-subheadline { font-size: clamp(1.05rem, 2vw, 1.2rem); color: var(--color-text-secondary); max-width: 560px; margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-art { border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 30px 60px -30px rgba(10,25,47,0.3); border: 1px solid var(--color-border-soft); }
.hero-art img { display: block; width: 100%; height: auto; }

/* Trust strip */
.trust-strip { background: var(--color-white); padding: 26px 0; border-bottom: 1px solid var(--color-border-soft); }
.trust-strip .container { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 20px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px; background: #fff; border: 1px solid var(--color-border); border-radius: 9999px; font-size: 0.82rem; font-weight: 600; color: var(--color-text); box-shadow: var(--shadow-sm); }
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--color-secondary); }

/* Service cards (bento) */
.service-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 640px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .service-grid { grid-template-columns: repeat(3, 1fr); } }
.service-card { position: relative; background: #fff; border: 1px solid var(--color-border-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 30px; transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease; overflow: hidden; }
.service-card::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius-lg); pointer-events: none; background: radial-gradient(600px 200px at 50% -20%, rgba(0,180,216,0.06), transparent 70%); opacity: 0; transition: opacity 0.25s; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: rgba(0,180,216,0.35); }
.service-card:hover::after { opacity: 1; }
.service-icon { width: 46px; height: 46px; display: flex; align-items: center; justify-content: center; border-radius: 12px; color: #0891b2; background: linear-gradient(135deg, rgba(0,180,216,0.16), rgba(16,185,129,0.10)); box-shadow: inset 0 1px 0 rgba(255,255,255,0.7), 0 1px 2px rgba(10,25,47,0.06); margin-bottom: 18px; }
.service-card h3 { font-size: 1.15rem; font-weight: 700; margin: 0 0 10px; color: var(--color-primary); letter-spacing: -0.01em; }
.service-card p { margin: 0; color: var(--color-text-secondary); font-size: 0.9375rem; }

/* Process steps */
.steps-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 640px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .steps-grid { grid-template-columns: repeat(5, 1fr); } }
.step { padding: 26px 22px; background: #fff; border: 1px solid var(--color-border-soft); border-radius: var(--radius-md); box-shadow: var(--shadow-card); }
.step-number { width: 38px; height: 38px; border-radius: 50%; background: var(--gradient-brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.95rem; margin-bottom: 14px; }
.step h3 { font-size: 1.05rem; font-weight: 700; margin: 0 0 6px; color: var(--color-primary); }
.step p { margin: 0; color: var(--color-text-secondary); font-size: 0.875rem; }

/* Why us / about strip */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
@media (min-width: 900px) { .about-grid { grid-template-columns: 1fr 1fr; } }
.about-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.about-grid li { display: flex; gap: 12px; align-items: flex-start; color: var(--color-text-secondary); }
.about-grid li svg { flex-shrink: 0; color: var(--color-accent); margin-top: 3px; }

/* Products */
.product-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
.product-card { background: #fff; border: 1px solid var(--color-border-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 30px; transition: transform 0.22s ease, box-shadow 0.22s ease; }
.product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.product-card .tag { display: inline-block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: #0891b2; background: rgba(0,180,216,0.1); border-radius: 9999px; padding: 4px 10px; margin-bottom: 14px; }
.product-card h3 { font-size: 1.2rem; font-weight: 700; margin: 0 0 8px; color: var(--color-primary); }
.product-card p { margin: 0 0 16px; color: var(--color-text-secondary); font-size: 0.9375rem; }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1.2fr 1fr; } }
.contact-form { background: #fff; border: 1px solid var(--color-border-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 34px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 6px; color: var(--color-primary); }
.form-group input, .form-group textarea { width: 100%; padding: 12px 15px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-family: inherit; font-size: 1rem; color: var(--color-text); background: #fff; transition: border-color 0.2s, box-shadow 0.2s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-secondary); box-shadow: 0 0 0 4px rgba(0,180,216,0.14); }
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-info h3 { font-size: 1.125rem; font-weight: 700; margin: 0 0 12px; color: var(--color-primary); }
.contact-info p { color: var(--color-text-secondary); margin: 0 0 20px; }
.contact-emails { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.contact-emails li { display: flex; align-items: center; gap: 10px; color: var(--color-text-secondary); font-size: 0.9375rem; }
.contact-emails svg { flex-shrink: 0; color: var(--color-secondary); }

/* Footer */
.site-footer { background: #071220; color: rgba(255,255,255,0.72); padding-top: 72px; padding-bottom: 36px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 44px; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; } }
.footer-brand .logo { height: 30px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 0.9375rem; line-height: 1.6; margin: 0 0 16px; color: rgba(255,255,255,0.7); }
.footer-column h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: #fff; margin: 0 0 16px; }
.footer-column ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.footer-column a { color: rgba(255,255,255,0.7); font-size: 0.9375rem; }
.footer-column a:hover, .footer-column a:focus { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 26px; display: flex; flex-direction: column; gap: 8px; font-size: 0.8125rem; color: rgba(255,255,255,0.5); }
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; } }

/* Legal */
.legal-content { max-width: 760px; margin: 0 auto; padding-top: 52px; padding-bottom: 88px; }
.legal-content h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; margin-bottom: 8px; color: var(--color-primary); letter-spacing: -0.02em; }
.legal-effective { color: var(--color-muted); font-size: 0.9375rem; margin-bottom: 34px; }
.legal-content h2 { font-size: 1.25rem; font-weight: 700; margin-top: 34px; margin-bottom: 12px; color: var(--color-primary); }
.legal-content h3 { font-size: 1.0625rem; font-weight: 700; margin-top: 22px; margin-bottom: 8px; color: var(--color-primary); }
.legal-content p, .legal-content li { color: var(--color-text-secondary); font-size: 0.9375rem; line-height: 1.75; }
.legal-content ul, .legal-content ol { padding-left: 24px; margin-bottom: 16px; }
.legal-content li { margin-bottom: 8px; }
.legal-content a { color: var(--color-secondary); }

/* Page hero (subpages) */
.page-hero { background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%); padding: 64px 0 40px; border-bottom: 1px solid var(--color-border-soft); }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; letter-spacing: -0.03em; margin: 0 0 12px; color: var(--color-primary); }
.page-hero p { font-size: 1.15rem; color: var(--color-text-secondary); max-width: 680px; margin: 0; }

/* 404 */
.error-page { text-align: center; padding: 90px 0 130px; }
.error-code { font-size: clamp(5rem, 15vw, 9rem); font-weight: 800; line-height: 1; color: transparent; background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; margin-bottom: 16px; }
.error-page h1 { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; margin-bottom: 16px; color: var(--color-primary); }
.error-page p { color: var(--color-text-secondary); margin-bottom: 28px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }