/* BlueMind Tech — site styles */
:root {
  --blue: #3f5aff;
  --blue-600: #2f47e6;
  --sky: #50a2ff;
  --navy: #0b1033;
  --navy-2: #131a4d;
  --ink: #0f172a;
  --body: #3b4460;
  --muted: #6b7394;
  --line: #e3e7f2;
  --soft: #f5f7fd;
  --white: #fff;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 20px 50px rgba(11, 16, 51, .18);
  --grad: linear-gradient(100deg, #50a2ff 0%, #3f5aff 55%, #7b5cff 100%);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--body); background: var(--white); font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.wrap { width: min(1200px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 40px); }
.sr, .hp { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--navy); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 2px; border-radius: 4px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 700; color: var(--blue); margin-bottom: .9em; }
.ico { width: 22px; height: 22px; flex: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5em; padding: .85em 1.35em; border-radius: 999px; font-weight: 600; font-size: 1rem; border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s; font-family: inherit; line-height: 1.2; }
.btn .ico { width: 18px; height: 18px; transition: transform .15s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:hover .ico { transform: translateX(3px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 6px 18px rgba(63, 90, 255, .35); }
.btn-primary:hover { background: var(--blue-600); }
.btn-ghost { border-color: rgba(255, 255, 255, .35); color: #fff; }
.btn-ghost:hover { border-color: #fff; }
.btn-light { background: #fff; color: var(--navy); }
.btn-sm { padding: .6em 1.1em; font-size: .92rem; }
.text-link { display: inline-flex; align-items: center; gap: .4em; font-weight: 600; }
.text-link .ico { width: 18px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand img { height: 44px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.site-nav ul a { color: var(--ink); font-weight: 500; font-size: .96rem; padding: 6px 0; border-bottom: 2px solid transparent; }
.site-nav ul a:hover, .site-nav ul a[aria-current] { color: var(--blue); text-decoration: none; border-color: var(--blue); }
.menu-btn { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.bars, .bars::before, .bars::after { display: block; width: 24px; height: 2px; background: var(--ink); border-radius: 2px; position: relative; transition: .2s; }
.bars::before, .bars::after { content: ''; position: absolute; left: 0; }
.bars::before { top: -7px; } .bars::after { top: 7px; }
.menu-btn[aria-expanded="true"] .bars { background: transparent; }
.menu-btn[aria-expanded="true"] .bars::before { top: 0; transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] .bars::after { top: 0; transform: rotate(-45deg); }

/* Breadcrumbs */
.crumbs { background: var(--navy); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 12px 0; font-size: .84rem; color: #a9b3dc; }
.crumbs li + li::before { content: '/'; margin-right: 6px; opacity: .5; }
.crumbs a { color: #cfd6f5; }

/* Hero */
.hero { position: relative; background: radial-gradient(1000px 500px at 85% -10%, rgba(80, 162, 255, .28), transparent 60%), radial-gradient(800px 500px at 0% 110%, rgba(63, 90, 255, .3), transparent 60%), var(--navy); color: #c9d1f2; overflow: hidden; padding: 88px 0 96px; }
.hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, #000, transparent 90%); pointer-events: none; }
.hero .wrap { position: relative; }
.hero h1 { color: #fff; max-width: 17ch; }
.hero .eyebrow { color: var(--sky); }
.hero .lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 58ch; color: #c9d1f2; }
.hero-split .hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero-compact { padding: 64px 0 64px; }
.hero-compact h1 { max-width: 22ch; }
.center { text-align: center; }
.center h1, .center .lead { margin-inline: auto; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.actions.center { justify-content: center; }

/* Hero visuals */
.hero-visual { display: grid; place-items: center; }
.orbit { position: relative; width: min(440px, 100%); aspect-ratio: 1; border-radius: 50%; border: 1px dashed rgba(255, 255, 255, .18); }
.orbit::before { content: ''; position: absolute; inset: 18%; border-radius: 50%; border: 1px solid rgba(80, 162, 255, .25); }
.orb-core { position: absolute; inset: 34%; border-radius: 50%; background: radial-gradient(circle, rgba(80, 162, 255, .35), rgba(63, 90, 255, .1) 70%); display: grid; place-items: center; box-shadow: 0 0 80px rgba(63, 90, 255, .5); }
.orb-core img { width: 60%; height: auto; }
.orb-card { position: absolute; display: flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16); backdrop-filter: blur(8px); color: #fff; padding: 12px 16px; border-radius: 12px; font-weight: 600; font-size: .92rem; white-space: nowrap; box-shadow: var(--shadow-lg); animation: float 6s ease-in-out infinite; }
.orb-card .ico { color: var(--sky); }
.oc-1 { top: 4%; left: -6%; } .oc-2 { top: 20%; right: -10%; animation-delay: -1.5s; } .oc-3 { bottom: 16%; left: -10%; animation-delay: -3s; } .oc-4 { bottom: 2%; right: 0; animation-delay: -4.5s; }
@keyframes float { 50% { transform: translateY(-10px); } }
.code-visual { margin: 0; background: #070b26; border: 1px solid rgba(255, 255, 255, .12); border-radius: 14px; box-shadow: var(--shadow-lg), 0 0 60px rgba(63, 90, 255, .25); overflow: hidden; }
.cv-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(255, 255, 255, .08); background: rgba(255, 255, 255, .03); }
.cv-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; } .cv-bar i:nth-child(2) { background: #febc2e; } .cv-bar i:nth-child(3) { background: #28c840; }
.cv-bar span { margin-left: 10px; font: 500 .8rem var(--mono); color: #8e98c7; }
.code-visual pre { margin: 0; padding: 22px 22px 26px; font: .88rem/1.7 var(--mono); color: #dbe2ff; overflow-x: auto; }
.code-visual .c { color: #7c87b8; } .code-visual .k { color: #8fb8ff; } .code-visual .s { color: #7ee2b8; } .code-visual .m { color: #ffb86b; } .code-visual .f { color: #d6a2ff; } .code-visual .n { color: #8fb8ff; }

/* Trust strip */
.trust-strip { border-bottom: 1px solid var(--line); background: var(--white); }
.trust-strip ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 32px; list-style: none; margin: 0; padding: 24px 0; }
.trust-strip li { font-size: .95rem; }
.trust-strip li { font-weight: 700; color: #8a93b5; letter-spacing: .01em; }

/* Sections */
.section { padding: 88px 0; }
.tone-soft { background: var(--soft); }
.tone-dark { background: var(--navy); color: #c9d1f2; }
.tone-dark h2, .tone-dark h3 { color: #fff; }
.tone-dark .feature { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .1); }
.tone-dark .feature p { color: #aeb8e2; }
.tone-dark .card-ico { background: rgba(80, 162, 255, .15); color: var(--sky); }
.tone-dark .eyebrow { color: var(--sky); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head p { font-size: 1.1rem; color: var(--muted); }
.tone-dark .section-head p { color: #aeb8e2; }

/* Cards & features */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); color: var(--body); display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s, border-color .2s; }
.card-link:hover { text-decoration: none; transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(63, 90, 255, .4); }
.card p { flex: 1; }
.card .more { display: inline-flex; align-items: center; gap: .4em; font-weight: 600; color: var(--blue); font-size: .95rem; }
.card .more .ico { width: 16px; }
.card-ico { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, rgba(80, 162, 255, .16), rgba(63, 90, 255, .16)); color: var(--blue); margin-bottom: 18px; }
.card-ico .ico { width: 24px; height: 24px; }
.features { display: grid; gap: 24px; }
.features.cols-3 { grid-template-columns: repeat(3, 1fr); }
.feature { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.feature p { margin: 0; color: var(--body); font-size: .98rem; }

.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.split .section-head { margin-bottom: 20px; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 32px; box-shadow: var(--shadow); }
.panel + .panel { margin-top: 20px; }
.panel-h { font-size: 1.15rem; margin-bottom: 14px; }
.mission { font-size: 1.3rem; line-height: 1.5; color: var(--ink); font-weight: 600; margin: 0; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist .ico { width: 24px; height: 24px; padding: 4px; border-radius: 50%; background: var(--blue); color: #fff; stroke-width: 3; margin-top: 2px; }
.checklist strong { color: var(--ink); }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: s; }
.steps li { position: relative; padding-top: 22px; border-top: 3px solid var(--line); }
.steps li::before { content: ''; position: absolute; top: -3px; left: 0; width: 56px; height: 3px; background: var(--grad); }
.step-n { display: block; font: 800 .9rem var(--mono); color: var(--blue); margin-bottom: 10px; }
.steps p { font-size: .97rem; margin: 0; }

/* CTA band */
.cta-band { background: var(--grad); color: #eef1ff; padding: 64px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.cta-band h2 { color: #fff; margin-bottom: .3em; }
.cta-band p { margin: 0; max-width: 60ch; }
.cta-band .btn { flex: none; }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 0 22px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); padding: 18px 28px 18px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--blue); font-weight: 400; }
.faq details[open] summary::after { content: '–'; }
.faq details p { margin: 0 0 20px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.4fr .9fr; gap: 48px; align-items: start; }
.contact-form { display: grid; gap: 20px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 36px; box-shadow: var(--shadow); }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form label { display: grid; gap: 7px; font-weight: 600; font-size: .92rem; color: var(--ink); }
.contact-form label span { color: var(--blue); margin-left: 2px; }
.contact-form input, .contact-form select, .contact-form textarea { font: inherit; font-weight: 400; color: var(--ink); padding: 12px 14px; border: 1px solid #cfd5e6; border-radius: 10px; background: #fff; width: 100%; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(63, 90, 255, .15); }
.contact-form [aria-invalid="true"] { border-color: #d63b3b; }
.contact-form button { justify-self: start; }
.form-status { margin: 0; font-weight: 600; min-height: 1.2em; }
.form-status.err { color: #c62828; } .form-status.ok { color: #1b8a4b; }
.fine { font-size: .85rem; color: var(--muted); margin: 0; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-list .ico { color: var(--blue); margin-top: 3px; }
.contact-list div { display: grid; }
.contact-list strong { color: var(--ink); }
.mini-steps { margin: 0; padding-left: 1.2em; display: grid; gap: 8px; }

.prose h2 { font-size: 1.5rem; margin-top: 1.6em; }

address { font-style: normal; }
.footer-brand address { margin-bottom: 1em; }
.contact-list address { color: var(--body); }

/* Footer */
.site-footer { background: #070b26; color: #9aa4cf; padding: 72px 0 0; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; }
.footer-brand img { height: 44px; width: auto; margin-bottom: 18px; }
.footer-h { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 18px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { color: #cfd6f5; }
.site-footer .btn-light { color: var(--navy); }
.footer-base { border-top: 1px solid rgba(255, 255, 255, .08); margin-top: 56px; padding: 22px 0; font-size: .85rem; }
.footer-base p { margin: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-split .hero-inner, .split, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 460px; }
  .cards, .features.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .oc-1, .oc-3 { left: 0; } .oc-2 { right: 0; }
}
@media (max-width: 860px) {
  .menu-btn { display: block; }
  .site-nav { position: absolute; top: 76px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px 20px; display: none; box-shadow: var(--shadow-lg); }
  .site-nav.open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .site-nav .btn { margin-top: 16px; justify-content: center; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap, .narrow { width: calc(100% - 32px); }
  .hero { padding: 56px 0 64px; }
  .section { padding: 64px 0; }
  .cards, .features.cols-3, .steps, .form-row.two, .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .contact-form { padding: 24px; }
  .brand img { height: 38px; }
  .hero-visual, .code-visual { display: none; }
  .code-visual pre { font-size: .78rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}