:root {
  --navy: #06162C;
  --navy-2: #0A2341;
  --navy-3: #102F52;
  --blue: #096BFF;
  --blue-dark: #0455D4;
  --cyan: #14D9FF;
  --white: #FFFFFF;
  --light: #EFF7FF;
  --light-2: #F7FBFF;
  --text: #122238;
  --muted: #60758D;
  --line: #DCE8F3;
  --success: #0A8F62;
  --danger: #B42318;
  --shadow-sm: 0 10px 30px rgba(6, 22, 44, .07);
  --shadow-md: 0 20px 60px rgba(6, 22, 44, .12);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 28px;
  --shell: 1180px;
  --header-h: 82px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.65;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: rgba(20,217,255,.3); color: var(--navy); }

.skip-link {
  position: fixed; left: 16px; top: 12px; z-index: 9999;
  transform: translateY(-160%); background: var(--white); color: var(--navy);
  padding: 10px 14px; border-radius: 8px; font-weight: 800; text-decoration: none;
}
.skip-link:focus { transform: none; }

.section-shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.section { padding: 96px 0; }
.section--white { background: var(--white); }
.section--tint { background: var(--light-2); }
.section--navy { background: var(--navy); color: var(--white); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
  color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .13em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow--light { color: #83E9FF; }
.eyebrow--small { margin: 0; font-size: .68rem; }

h1,h2,h3,p { margin-top: 0; }
h1,h2,h3 { color: inherit; line-height: 1.12; letter-spacing: -.025em; }
h1 { font-size: clamp(2.7rem, 5.4vw, 5.3rem); margin-bottom: 24px; }
h2 { font-size: clamp(2rem, 3.4vw, 3.45rem); margin-bottom: 20px; }
h3 { font-size: 1.17rem; margin-bottom: 10px; }
p { color: var(--muted); }
.section--navy p, .hero p, .page-hero p, .service-hero p { color: #B5C8DB; }

.icon { width: 26px; height: 26px; flex: 0 0 auto; }
.icon--sm { width: 17px; height: 17px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 1000; height: var(--header-h);
  background: rgba(6, 22, 44, .94); border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(16px); transition: box-shadow .25s var(--ease), background .25s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 14px 36px rgba(2, 13, 29, .18); background: rgba(6,22,44,.985); }
.nav-shell { width: min(calc(100% - 40px), var(--shell)); height: 100%; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--white); min-width: 0; }
.brand img { width: 50px; height: 42px; object-fit: contain; border-radius: 10px; background: var(--white); padding: 4px; }
.brand span { display: grid; line-height: 1.1; gap: 5px; }
.brand strong { font-size: .98rem; letter-spacing: .01em; white-space: nowrap; }
.brand small { color: #91A9C0; font-size: .67rem; letter-spacing: .02em; white-space: nowrap; }
.primary-nav { display: flex; align-items: center; gap: 4px; }
.primary-nav > a:not(.btn) { color: #C6D6E5; text-decoration: none; font-size: .91rem; font-weight: 700; padding: 12px 13px; border-radius: 9px; transition: color .2s, background .2s; }
.primary-nav > a:not(.btn):hover, .primary-nav > a.active { color: var(--white); background: rgba(255,255,255,.07); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.04); border-radius: 10px; padding: 11px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; background: white; margin: 5px 0; border-radius: 2px; transition: transform .2s, opacity .2s; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 22px; border: 1px solid transparent; border-radius: 11px;
  text-decoration: none; font-weight: 800; font-size: .92rem; cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s, border-color .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { color: white; background: var(--blue); box-shadow: 0 12px 26px rgba(9,107,255,.28); }
.btn--primary:hover { background: var(--blue-dark); box-shadow: 0 16px 32px rgba(9,107,255,.34); }
.btn--secondary { color: var(--navy); background: var(--white); border-color: #BFD2E5; }
.btn--secondary:hover { border-color: var(--blue); color: var(--blue); }
.btn--ghost { color: white; border-color: rgba(255,255,255,.26); background: rgba(255,255,255,.05); }
.btn--ghost:hover { background: rgba(255,255,255,.1); }
.btn--white { background: white; color: var(--navy); }
.btn--outline-light { color: white; border-color: rgba(255,255,255,.35); background: transparent; }
.btn--nav { min-height: 42px; margin-left: 10px; padding: 0 16px; color: white; background: var(--blue); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-weight: 800; text-decoration: none; font-size: .91rem; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.back-link { display: inline-block; color: #9FDFF0; text-decoration: none; font-weight: 700; margin-bottom: 22px; }

/* Home hero */
.hero { position: relative; overflow: hidden; background: var(--navy); color: white; }
.hero--home::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 76% 18%, rgba(20,217,255,.12), transparent 26%), radial-gradient(circle at 15% 72%, rgba(9,107,255,.14), transparent 32%); pointer-events: none; }
.hero__grid { position: relative; min-height: 680px; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 70px; padding-top: 68px; padding-bottom: 72px; }
.hero__content { max-width: 660px; }
.hero__lead { max-width: 660px; font-size: clamp(1.05rem, 1.8vw, 1.25rem); margin-bottom: 32px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__proof { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 18px 24px; color: #9FB6CA; font-size: .82rem; font-weight: 700; }
.hero__proof span { display: inline-flex; align-items: center; gap: 7px; }
.hero__proof .icon { color: var(--cyan); }
.hero__visual { position: relative; min-width: 0; }
.hero__visual img { width: 100%; }
.hero-status { position: absolute; display: flex; align-items: center; gap: 9px; padding: 9px 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 999px; background: rgba(6,22,44,.88); backdrop-filter: blur(10px); color: #CFE2F1; font-size: .75rem; font-weight: 700; box-shadow: var(--shadow-md); }
.hero-status span { width: 8px; height: 8px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 5px rgba(52,211,153,.12); }
.hero-status--one { top: 17%; left: 1%; }
.hero-status--two { right: 2%; bottom: 17%; }

/* Trust */
.trust-strip { background: white; border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid article { min-height: 118px; display: flex; align-items: center; gap: 14px; padding: 26px 20px; border-right: 1px solid var(--line); }
.trust-grid article:first-child { border-left: 1px solid var(--line); }
.trust-grid .icon { color: var(--blue); }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { font-size: .94rem; margin-bottom: 3px; }
.trust-grid span { color: var(--muted); font-size: .76rem; line-height: 1.35; }

/* Headings */
.section-heading { display: grid; grid-template-columns: 1.08fr .72fr; gap: 64px; align-items: end; margin-bottom: 44px; }
.section-heading h2 { max-width: 720px; margin-bottom: 0; }
.section-heading > p { margin: 0; max-width: 480px; justify-self: end; }
.section-heading--light p { color: #A9BED1; }
.section-foot { margin-top: 34px; text-align: center; }

/* Cards */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-card { min-height: 285px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 0 0 rgba(0,0,0,0); transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s; }
.service-card:hover { transform: translateY(-4px); border-color: #B5D0EA; box-shadow: var(--shadow-sm); }
.service-card__icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 13px; background: var(--light); color: var(--blue); margin-bottom: 24px; }
.service-card h3 { min-height: 2.4em; }
.service-card p { font-size: .9rem; min-height: 5em; margin-bottom: 22px; }
.service-grid--large .service-card { min-height: 300px; }

/* Founder */
.founder-grid { display: grid; grid-template-columns: .83fr 1.17fr; gap: 84px; align-items: center; }
.founder-visual { position: relative; max-width: 490px; }
.founder-visual img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.founder-card { position: absolute; left: 28px; right: 28px; bottom: 28px; padding: 18px 20px; border: 1px solid rgba(255,255,255,.18); background: rgba(6,22,44,.86); backdrop-filter: blur(12px); color: white; border-radius: 14px; }
.founder-card strong, .founder-card span { display: block; }
.founder-card span { color: #AFC4D7; font-size: .82rem; margin-top: 3px; }
.founder-copy p { font-size: 1rem; max-width: 670px; }
.expertise-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 28px 0 30px; }
.expertise-list span { display: flex; align-items: center; gap: 9px; color: var(--text); font-size: .9rem; font-weight: 700; }
.expertise-list .icon { color: var(--blue); }

/* Solutions */
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card { padding: 30px; min-height: 220px; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.035); border-radius: var(--radius); }
.solution-card .icon { width: 32px; height: 32px; color: var(--cyan); margin-bottom: 30px; }
.solution-card h3 { font-size: 1.23rem; }
.solution-card p { margin-bottom: 0; font-size: .9rem; }

/* Why */
.why-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 86px; align-items: start; }
.why-intro { position: sticky; top: calc(var(--header-h) + 36px); }
.why-list { border-top: 1px solid var(--line); }
.why-list article { display: grid; grid-template-columns: 70px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.why-list article > span { color: var(--blue); font-size: .78rem; font-weight: 900; letter-spacing: .08em; }
.why-list h3 { margin-bottom: 6px; }
.why-list p { margin: 0; }

/* Projects */
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.project-card { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.project-card__top { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 18px; }
.project-card__type { color: var(--muted); font-size: .7rem; font-weight: 800; }
.project-card h3 { font-size: 1.25rem; min-height: 2.4em; }
.project-meta { margin: 22px 0 0; }
.project-meta div { padding: 14px 0; border-top: 1px solid var(--line); }
.project-meta dt { color: var(--text); font-size: .7rem; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.project-meta dd { margin: 4px 0 0; color: var(--muted); font-size: .82rem; line-height: 1.52; }

/* Tools */
.tools-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 84px; align-items: start; }
.tools-copy { position: sticky; top: calc(var(--header-h) + 36px); }
.tools-list { border-top: 1px solid var(--line); }
.tool-item { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.tool-item > .icon { width: 48px; height: 48px; padding: 12px; border-radius: 12px; background: var(--light); color: var(--blue); }
.tool-item h3 { margin-bottom: 5px; }
.tool-item p { margin: 0; font-size: .88rem; }

/* CTA */
.cta-band { margin-top: 34px; margin-bottom: 34px; border-radius: 28px; padding: 58px 62px; display: grid; grid-template-columns: 1.25fr .75fr; gap: 50px; align-items: center; background: linear-gradient(120deg, #071A33, #0C2D54); color: white; overflow: hidden; position: relative; }
.cta-band::after { content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%; right: -100px; top: -160px; border: 1px solid rgba(20,217,255,.15); box-shadow: 0 0 0 50px rgba(20,217,255,.025), 0 0 0 100px rgba(9,107,255,.02); }
.cta-band h2 { font-size: clamp(2rem, 3.2vw, 3.2rem); margin-bottom: 12px; position: relative; z-index: 1; }
.cta-band p { margin: 0; max-width: 650px; position: relative; z-index: 1; }
.cta-band__actions { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; position: relative; z-index: 2; }

/* Page hero */
.page-hero, .service-hero { background: var(--navy); color: white; position: relative; overflow: hidden; }
.page-hero::before, .service-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 83% 15%, rgba(20,217,255,.11), transparent 28%), linear-gradient(110deg, transparent 0 60%, rgba(9,107,255,.08)); }
.page-hero__grid { min-height: 460px; display: grid; grid-template-columns: 1.15fr .55fr; align-items: center; gap: 90px; padding-top: 68px; padding-bottom: 68px; position: relative; }
.page-hero--compact .page-hero__grid { min-height: 410px; }
.page-hero h1 { font-size: clamp(2.55rem, 5vw, 4.65rem); }
.page-hero__panel { padding: 28px; border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius); background: rgba(255,255,255,.035); display: grid; gap: 10px; }
.page-hero__panel strong { margin-bottom: 6px; }
.page-hero__panel span { color: #AFC3D6; font-size: .86rem; border-top: 1px solid rgba(255,255,255,.08); padding-top: 10px; }
.page-hero__panel .btn { margin-top: 10px; }
.split-copy { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.split-copy p { font-size: 1.04rem; }
.principles-grid, .process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.principles-grid article, .process-grid article { padding: 28px; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); }
.process-grid article { background: white; border-color: var(--line); }
.principles-grid article > span, .process-grid article > span { display: block; color: var(--cyan); font-weight: 900; font-size: .78rem; margin-bottom: 48px; }
.process-grid article > span { color: var(--blue); }
.principles-grid p, .process-grid p { margin: 0; font-size: .88rem; }

/* Service detail */
.service-hero__grid { min-height: 550px; display: grid; grid-template-columns: 1.2fr .6fr; align-items: center; gap: 100px; padding-top: 72px; padding-bottom: 72px; position: relative; }
.service-hero h1 { font-size: clamp(2.5rem, 5vw, 4.55rem); }
.service-hero__visual { min-height: 330px; padding: 34px; border: 1px solid rgba(255,255,255,.12); border-radius: 28px; background: linear-gradient(155deg, rgba(255,255,255,.06), rgba(255,255,255,.015)); display: flex; flex-direction: column; justify-content: flex-end; box-shadow: inset 0 1px 0 rgba(255,255,255,.06); }
.service-hero__icon { width: 92px; height: 92px; display: grid; place-items: center; border-radius: 22px; color: var(--cyan); background: rgba(20,217,255,.08); border: 1px solid rgba(20,217,255,.18); margin-bottom: auto; }
.service-hero__icon .icon { width: 46px; height: 46px; }
.service-hero__visual span, .service-hero__visual small { color: #9AB0C5; }
.service-hero__visual strong { font-size: 1.35rem; margin: 6px 0; }
.service-overview { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.lead-copy { color: var(--text); font-size: 1.15rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.feature-card { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; min-height: 150px; }
.feature-card .icon { color: var(--blue); width: 30px; height: 30px; margin-bottom: 28px; }
.feature-card h3 { margin: 0; font-size: 1rem; }
.tech-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; }
.tech-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-chips span { padding: 10px 14px; color: #D8E8F5; border: 1px solid rgba(255,255,255,.13); border-radius: 999px; background: rgba(255,255,255,.035); font-size: .83rem; font-weight: 700; }
.benefits-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.benefit-list { border-top: 1px solid var(--line); }
.benefit-list > div { display: flex; gap: 14px; align-items: center; min-height: 70px; border-bottom: 1px solid var(--line); font-weight: 750; }
.benefit-list .icon { color: var(--blue); }

/* Contact */
.contact-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; align-items: start; }
.contact-intro { position: sticky; top: calc(var(--header-h) + 36px); }
.contact-points { margin-top: 30px; border-top: 1px solid var(--line); }
.contact-points > div { display: flex; gap: 14px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact-points .icon { color: var(--blue); }
.contact-points strong, .contact-points small { display: block; }
.contact-points small { color: var(--muted); margin-top: 2px; }
.contact-card { padding: 34px; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: grid; gap: 8px; }
.contact-form label > span { font-size: .78rem; font-weight: 800; color: #354B61; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; border: 1px solid #C9D9E7; background: #FCFEFF; color: var(--text); border-radius: 10px; padding: 13px 14px; outline: none; transition: border .2s, box-shadow .2s; }
.contact-form input, .contact-form select { min-height: 50px; }
.contact-form textarea { resize: vertical; min-height: 155px; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(9,107,255,.09); }
.form-span-2 { grid-column: 1 / -1; }
.contact-form button { margin-top: 22px; }
.form-note { font-size: .76rem; margin: 12px 0 0; }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.alert { padding: 16px 18px; border-radius: 10px; margin-bottom: 22px; font-size: .88rem; }
.alert strong { display: block; margin-bottom: 4px; }
.alert ul { margin: 6px 0 0; padding-left: 20px; }
.alert--success { color: #066746; background: #EAF8F2; border: 1px solid #BFE9D8; }
.alert--error { color: #8F1C15; background: #FFF1F0; border: 1px solid #F5CAC6; }

/* Footer */
.site-footer { margin-top: 82px; background: #041123; color: white; }
.footer-shell { width: min(calc(100% - 40px), var(--shell)); margin: auto; display: grid; grid-template-columns: 1.6fr .8fr .7fr .7fr; gap: 54px; padding: 70px 0 58px; }
.brand--footer img { width: 46px; height: 40px; }
.footer-brand p { max-width: 410px; color: #829BB3; font-size: .86rem; margin-top: 22px; }
.footer-shell h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: #7EDFF4; margin-bottom: 18px; }
.footer-shell > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; }
.footer-shell a, .footer-shell > div:not(.footer-brand) p { color: #9DB1C5; text-decoration: none; font-size: .82rem; margin: 0 0 10px; }
.footer-shell a:hover { color: white; }
.footer-bottom { width: min(calc(100% - 40px), var(--shell)); margin: auto; min-height: 66px; border-top: 1px solid rgba(255,255,255,.08); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-bottom p { color: #6F879D; font-size: .72rem; margin: 0; }
.whatsapp-float { position: fixed; right: 24px; bottom: 24px; z-index: 900; width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%; background: #25D366; box-shadow: 0 14px 32px rgba(0,0,0,.2); transition: transform .2s; }
.whatsapp-float:hover { transform: translateY(-3px) scale(1.02); }
.whatsapp-float svg { width: 28px; height: 28px; fill: white; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* <= 1100 / 1024 */
@media (max-width: 1100px) {
  :root { --shell: 940px; }
  .brand small { display: none; }
  .service-grid { grid-template-columns: repeat(2,1fr); }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project-card:last-child { grid-column: 1 / -1; }
  .hero__grid { gap: 30px; min-height: 620px; }
  .founder-grid, .tools-layout, .why-grid { gap: 54px; }
  .cta-band { padding: 48px; }
}

/* <= 900 / tablet */
@media (max-width: 900px) {
  :root { --header-h: 74px; }
  .section { padding: 76px 0; }
  .menu-toggle { display: block; }
  .primary-nav { position: fixed; left: 20px; right: 20px; top: calc(var(--header-h) + 8px); padding: 16px; border: 1px solid rgba(255,255,255,.1); border-radius: 16px; background: #071A31; box-shadow: 0 26px 60px rgba(0,0,0,.28); display: grid; gap: 4px; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s; }
  .primary-nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .primary-nav > a:not(.btn) { padding: 13px 14px; }
  .btn--nav { margin: 8px 0 0; width: 100%; }
  .hero__grid, .page-hero__grid, .service-hero__grid { grid-template-columns: 1fr; }
  .hero__grid { padding-top: 70px; gap: 10px; }
  .hero__visual { max-width: 600px; margin: 0 auto; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid article:nth-child(3) { border-left: 1px solid var(--line); }
  .trust-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-heading, .founder-grid, .why-grid, .tools-layout, .split-copy, .service-overview, .tech-layout, .benefits-layout, .contact-layout { grid-template-columns: 1fr; gap: 38px; }
  .section-heading > p { justify-self: start; }
  .founder-visual { margin-inline: auto; }
  .why-intro, .tools-copy, .contact-intro { position: static; }
  .solution-grid { grid-template-columns: 1fr 1fr; }
  .principles-grid, .process-grid { grid-template-columns: 1fr 1fr; }
  .page-hero__grid { gap: 34px; min-height: 0; padding-top: 72px; padding-bottom: 72px; }
  .service-hero__grid { min-height: 0; gap: 42px; }
  .service-hero__visual { min-height: 260px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr; gap: 28px; }
  .cta-band__actions { justify-content: flex-start; }
  .footer-shell { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-shell > div:last-child { grid-column: 1 / -1; }
}

/* <= 768 */
@media (max-width: 768px) {
  .section-shell, .nav-shell, .footer-shell, .footer-bottom { width: min(calc(100% - 32px), var(--shell)); }
  h1 { font-size: clamp(2.45rem, 10vw, 4rem); }
  h2 { font-size: clamp(1.9rem, 8vw, 2.8rem); }
  .hero__grid { padding-top: 56px; padding-bottom: 58px; }
  .hero__visual { margin-top: 16px; }
  .hero-status { font-size: .68rem; }
  .service-grid, .project-grid { grid-template-columns: 1fr 1fr; }
  .project-card:last-child { grid-column: 1 / -1; }
  .founder-grid { gap: 36px; }
  .expertise-list { grid-template-columns: 1fr; }
  .cta-band { width: min(calc(100% - 32px), var(--shell)); padding: 40px 30px; border-radius: 22px; }
  .site-footer { margin-top: 64px; }
  .footer-shell { grid-template-columns: 1.4fr 1fr; gap: 38px; padding: 56px 0 42px; }
  .footer-shell > div:last-child { grid-column: auto; }
}

/* <= 600 */
@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .brand strong { font-size: .9rem; }
  .brand img { width: 45px; height: 38px; }
  .hero__lead { font-size: 1rem; }
  .hero__actions { display: grid; grid-template-columns: 1fr; }
  .hero__actions .btn { width: 100%; }
  .hero__proof { gap: 12px 16px; }
  .hero__visual img { width: 115%; max-width: 115%; margin-left: -7%; }
  .hero-status--one { left: 0; top: 11%; }
  .hero-status--two { right: 0; bottom: 12%; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-grid article { border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); min-height: 92px; }
  .section-heading { gap: 18px; margin-bottom: 32px; }
  .service-grid, .project-grid, .solution-grid, .feature-grid, .principles-grid, .process-grid { grid-template-columns: 1fr; }
  .project-card:last-child { grid-column: auto; }
  .service-card { min-height: 0; }
  .service-card h3, .service-card p { min-height: 0; }
  .solution-card { min-height: 0; }
  .founder-card { left: 18px; right: 18px; bottom: 18px; }
  .why-list article { grid-template-columns: 44px 1fr; gap: 14px; }
  .page-hero__panel { padding: 22px; }
  .service-hero__visual { min-height: 230px; }
  .contact-card { padding: 22px; border-radius: 18px; }
  .form-grid { grid-template-columns: 1fr; gap: 15px; }
  .form-span-2 { grid-column: auto; }
  .btn--full-mobile { width: 100%; }
  .footer-shell { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { padding: 20px 0; align-items: flex-start; flex-direction: column; gap: 5px; }
  .whatsapp-float { width: 52px; height: 52px; right: 16px; bottom: 16px; }
}

/* 375 and 320 specific safeguards */
@media (max-width: 390px) {
  .section-shell, .nav-shell, .footer-shell, .footer-bottom { width: calc(100% - 24px); }
  .brand span { max-width: 190px; }
  .brand strong { overflow: hidden; text-overflow: ellipsis; }
  .hero__proof { display: grid; }
  .cta-band { width: calc(100% - 24px); padding: 34px 22px; }
  .footer-shell { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}

@media (max-width: 330px) {
  .brand strong { font-size: .84rem; }
  .brand img { width: 40px; height: 34px; }
  .menu-toggle { width: 40px; height: 40px; }
  .hero__actions .btn, .btn { padding-left: 16px; padding-right: 16px; }
  .service-card, .project-card, .solution-card { padding: 22px; }
}