/* Cavira Innovation — design system
   One typeface (Plus Jakarta Sans), a neutral base, and the logo's pink-to-coral as the single accent.
   Radius: 6px everywhere. Spacing: 8px grid. */
:root {
  --ink: #17171C;
  --ink-soft: #5A5A66;
  --white: #FFFFFF;
  --surface: #F6F6F8;
  --line: #E3E3E8;
  --brand: #B01232;        /* deep crimson from the logo: buttons, links, emphasis */
  --brand-hover: #8F0D28;
  --pink: #F7519F;         /* logo pink: accents only */
  --coral: #FF7080;
  --grad: linear-gradient(100deg, #F7519F, #FF7080);
  --tint: #FDEEF4;         /* pale pink for subtle fills */

  --font: "Plus Jakarta Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --radius: 6px;
  --gutter: clamp(20px, 5vw, 64px);
  --max: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: var(--font); font-size: 1.0625rem; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font); margin: 0; line-height: 1.12; letter-spacing: -.025em; font-weight: 700; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--pink); outline-offset: 3px; border-radius: 2px; }

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 100; font-weight: 600; }
.skip:focus { left: 8px; }

/* ---------- type roles ---------- */
.h2 { font-size: clamp(1.75rem, 3.4vw, 2.75rem); max-width: 18em; }
h3 { font-size: 1.2rem; letter-spacing: -.015em; }
.sub { font-size: 1.15rem; color: var(--ink-soft); max-width: 36em; margin-top: 16px; }

/* ---------- buttons (one primary, one secondary) ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; font: 600 1rem/1 var(--font); padding: 1em 1.5em; border-radius: var(--radius); border: 1.5px solid transparent; cursor: pointer; transition: background-color .15s, border-color .15s, color .15s; }
.btn-gold, .btn-dark { background: var(--brand); color: #fff; }
.btn-gold:hover, .btn-dark:hover { background: var(--brand-hover); }
.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn:disabled { opacity: .6; cursor: wait; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(8px); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; line-height: 1.1; }
.brand-mark { width: 44px; height: auto; flex: none; }
.brand-word { display: block; font-weight: 800; font-size: 1.3rem; letter-spacing: .04em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand small { display: block; font-weight: 500; font-size: .75rem; letter-spacing: .04em; color: var(--ink-soft); margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { text-decoration: none; padding: .55em .95em; font-weight: 500; font-size: .95rem; color: var(--ink-soft); }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--pink); }
.nav .btn { margin-left: 12px; padding: .75em 1.2em; font-size: .95rem; color: #fff; box-shadow: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--ink); width: 44px; height: 44px; border-radius: var(--radius); cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: currentColor; margin: 5px auto; 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 (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav { position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--white); padding: 8px var(--gutter) 24px; border-bottom: 1px solid var(--line); display: none; }
  .nav.open { display: flex; }
  .nav a { padding: .95em 0; border-bottom: 1px solid var(--line); }
  .nav a[aria-current="page"] { box-shadow: none; color: var(--brand); }
  .nav .btn { margin: 16px 0 0; padding: 1em; border-bottom: 1.5px solid transparent; }
}

/* ---------- hero ---------- */
.hero { background: var(--white); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(48px, 7vw, 88px) clamp(56px, 7vw, 96px); }
.hero-visual { position: relative; padding-bottom: 112px; }
.hero-art { width: 100%; height: auto; }
.hero h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.02; }
.hero h1 .l2 { display: block; margin-top: .3em; font-weight: 500; font-size: .46em; letter-spacing: -.02em; color: var(--ink-soft); line-height: 1.2; }
.hero .lede { max-width: 36em; font-size: 1.15rem; color: var(--ink-soft); margin: 28px 0 32px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }

.boot { position: absolute; left: -24px; bottom: 0; width: min(310px, 72%); background: var(--ink); border-radius: var(--radius); padding: 16px 18px 18px; font-family: var(--mono); font-size: .8rem; line-height: 1.8; color: #D7D7DE; box-shadow: 0 24px 48px -20px rgba(23,23,28,.5); }
.boot-title { display: flex; justify-content: space-between; color: #8A8A97; font-size: .72rem; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,.14); }
.boot ol { list-style: none; margin: 0; padding: 0; min-height: 8.2em; }
.boot li { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; opacity: 0; }
.boot li.on { opacity: 1; }
.boot .ok { color: var(--pink); }
.boot .cursor { display: inline-block; width: .55em; height: 1em; background: var(--pink); vertical-align: -.15em; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.board-trace { fill: none; stroke: var(--pink); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.board-trace.thin { stroke-width: 1.6; opacity: .55; }
.js .board-trace { stroke-dasharray: var(--len, 1200); stroke-dashoffset: var(--len, 1200); animation: draw 2.4s cubic-bezier(.5,.1,.2,1) forwards; animation-delay: var(--delay, 0s); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (max-width: 900px) {
    .hero .wrap { grid-template-columns: 1fr; min-height: 0; }
  .hero-visual { padding-bottom: 0; }
  .boot { position: relative; left: 8px; margin-top: -48px; width: min(340px, 90%); }
}

/* ---------- sections ---------- */
.section { padding-block: clamp(64px, 8vw, 112px); }
.section-tight { padding-block: clamp(48px, 6vw, 72px); }
main > section + section { border-top: 1px solid var(--line); }

.intro { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.intro p.big { font-size: clamp(1.25rem, 2vw, 1.6rem); line-height: 1.45; letter-spacing: -.012em; font-weight: 500; max-width: 26em; }
.intro p.big strong { font-weight: 700; }
.why { list-style: none; margin: 0; padding: 0 0 0 32px; position: relative; }
.why::before { content: ""; position: absolute; left: 6px; top: 10px; bottom: 10px; width: 2px; background: var(--grad); }
.why li { position: relative; padding-bottom: 28px; }
.why li:last-child { padding-bottom: 0; }
.why li::before { content: ""; position: absolute; left: -32px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--white); border: 3px solid var(--brand); }
.why h3 { margin-bottom: 4px; }
.why p { margin: 0; color: var(--ink-soft); }
@media (max-width: 820px) { .intro { grid-template-columns: 1fr; } }

/* process: a real sequence */
.steps { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); position: relative; counter-reset: step; }
.steps::before { content: ""; position: absolute; left: 0; right: 0; top: 17px; height: 2px; background: var(--grad); }
.steps li { position: relative; padding: 52px 18px 0 0; counter-increment: step; }
.steps li::before { content: counter(step); position: absolute; top: 0; left: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--white); border: 2px solid var(--brand); color: var(--brand); display: grid; place-items: center; font-size: .9rem; font-weight: 700; }
.steps h3 { margin-bottom: 6px; }
.steps p { font-size: .95rem; color: var(--ink-soft); margin: 0; }
@media (max-width: 980px) {
  .steps { grid-template-columns: 1fr; margin-top: 40px; }
  .steps::before { left: 17px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .steps li { padding: 0 0 28px 60px; }
  .steps li:last-child { padding-bottom: 0; }
}

/* technology */
.tech { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(32px, 6vw, 96px); margin-top: 40px; }
.tech-row { display: grid; grid-template-columns: 10.5em 1fr; gap: 16px; padding-block: 20px; border-top: 1px solid var(--line); }
.tech-row h3 { font-size: 1rem; letter-spacing: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.chips li { font-size: .85rem; font-weight: 500; padding: .2em .65em; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); }
@media (max-width: 860px) { .tech { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .tech-row { grid-template-columns: 1fr; gap: 8px; } }

/* industries */
.industries { font-size: clamp(1.25rem, 2.4vw, 1.9rem); font-weight: 500; line-height: 1.5; letter-spacing: -.015em; max-width: 28em; margin-top: 24px; color: var(--ink); }
.industries span { white-space: nowrap; }
.industries span:not(:last-child)::after { content: "/"; color: var(--pink); margin: 0 .5em; font-weight: 400; }

/* CTA */
.cta { background: var(--white); }
.cta .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 32px; }
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); max-width: 18em; }
.cta p { margin: 10px 0 0; color: var(--ink-soft); max-width: 34em; }

/* ---------- page heads ---------- */
.page-head { background: var(--white); }
.page-head .wrap { padding-block: clamp(56px, 8vw, 96px) clamp(44px, 6vw, 72px); }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); font-weight: 800; letter-spacing: -.035em; max-width: 16em; }
.page-head h1::before { content: ""; display: block; width: 48px; height: 4px; border-radius: 2px; background: var(--grad); margin-bottom: 24px; }
.page-head p { font-size: 1.2rem; color: var(--ink-soft); max-width: 36em; margin: 20px 0 0; }

/* ---------- services page ---------- */
.svc-layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); }
.svc-nav { position: sticky; top: 104px; align-self: start; }
.svc-nav ul { list-style: none; margin: 0; padding: 0 0 0 22px; position: relative; }
.svc-nav ul::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: var(--grad); }
.svc-nav li { position: relative; padding-block: 7px; }
.svc-nav li::before { content: ""; position: absolute; left: -22px; top: 15px; width: 12px; height: 12px; border-radius: 50%; background: var(--white); border: 3px solid var(--brand); }
.svc-nav a { text-decoration: none; font-weight: 500; font-size: .95rem; color: var(--ink-soft); }
.svc-nav a:hover { color: var(--ink); }
.svc-nav .lbl { font-weight: 700; font-size: 1rem; margin-bottom: 14px; }
.svc-group { padding-bottom: clamp(48px, 6vw, 72px); }
.svc-group > h2 { font-size: clamp(1.6rem, 2.8vw, 2.25rem); margin-bottom: 8px; }
.svc-group > .gsub { color: var(--ink-soft); max-width: 36em; margin-bottom: 20px; }
.svc { padding-block: 28px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 40px minmax(0, 15rem) minmax(0, 1fr); gap: 12px 28px; align-items: start; scroll-margin-top: 96px; }
.ico { flex: none; }
.svc h3 { font-size: 1.2rem; }
.svc p { margin: 0; color: var(--ink-soft); max-width: 38em; }
.svc .chips { margin-top: 14px; }
@media (max-width: 980px) { .svc-layout { grid-template-columns: 1fr; } .svc-nav { display: none; } }
@media (max-width: 760px) { .svc { grid-template-columns: 40px 1fr; } .svc > div { grid-column: 1 / -1; } }

/* ---------- about page ---------- */
.mvv { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 48px; border-top: 1px solid var(--line); }
.mvv > div { padding: 28px 28px 8px 0; }
.mvv > div + div { padding-left: 28px; border-left: 1px solid var(--line); }
.mvv h3 { margin-bottom: 10px; }
.mvv p { color: var(--ink-soft); margin: 0; }
@media (max-width: 820px) { .mvv { grid-template-columns: 1fr; } .mvv > div, .mvv > div + div { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line); } }
.two-col { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 6vw, 96px); align-items: start; }
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }
.models { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.model { background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--pink); border-radius: var(--radius); padding: 24px; }
.model h3 { margin-bottom: 6px; }
.model p { margin: 0; color: var(--ink-soft); font-size: 1rem; }
@media (max-width: 640px) { .models { grid-template-columns: 1fr; } }
.tick { list-style: none; margin: 24px 0 0; padding: 0; }
.tick li { position: relative; padding: 14px 0 14px 34px; border-top: 1px solid var(--line); }
.tick li::before { content: ""; position: absolute; left: 4px; top: 20px; width: 14px; height: 7px; border-left: 3px solid var(--brand); border-bottom: 3px solid var(--brand); transform: rotate(-45deg); }
.deliver { columns: 2; column-gap: 40px; margin: 0; padding: 0; list-style: none; }
.deliver li { break-inside: avoid; padding: 12px 0; border-top: 1px solid var(--line); color: var(--ink); }
@media (max-width: 640px) { .deliver { columns: 1; } }
.nda { border-left: 3px solid var(--pink); padding: 4px 0 4px 24px; max-width: 40em; font-size: 1.15rem; margin: 28px 0 0; }

/* ---------- contact ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .95rem; }
.field label .opt { font-weight: 400; color: var(--ink-soft); }
.field input, .field select, .field textarea { font: inherit; color: inherit; background: var(--white); border: 1.5px solid #C9C9D1; border-radius: var(--radius); padding: .8em .95em; width: 100%; }
.field textarea { min-height: 170px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 3px solid rgba(247,81,159,.35); outline-offset: 0; border-color: var(--brand); }
.field .err { color: #B42318; font-size: .9rem; }
.field [aria-invalid="true"] { border-color: #B42318; }
.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.form-note { grid-column: 1 / -1; font-size: .92rem; color: var(--ink-soft); margin: 0; }
.status { grid-column: 1 / -1; padding: 16px 18px; border-radius: var(--radius); display: none; font-weight: 500; }
.status.show { display: block; }
.status.ok { background: #E8F5EC; color: #11512A; border-left: 4px solid #1E8A4A; }
.status.bad { background: #FDECEA; color: #7A1D14; border-left: 4px solid #B42318; }
@media (max-width: 560px) { .form { grid-template-columns: 1fr; } }
.details { background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--pink); border-radius: var(--radius); padding: 32px; }
.details h2 { font-size: 1.3rem; margin-bottom: 16px; }
.details dl { margin: 0; }
.details dt { font-size: .85rem; color: var(--ink-soft); margin-top: 16px; }
.details dd { margin: 2px 0 0; font-weight: 500; }
.details a { color: var(--brand); text-underline-offset: 4px; }
.details .promise { margin: 24px 0 0; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .98rem; }

/* ---------- footer ---------- */
main + .site-footer, .site-footer { background: var(--white); border-top: 1px solid var(--line); color: var(--ink-soft); padding-block: 56px 28px; font-size: .95rem; }
.foot { display: grid; grid-template-columns: 1.6fr 1fr 1.3fr 1.3fr; gap: 40px; }
.site-footer h2 { font-size: .95rem; color: var(--ink); margin-bottom: 12px; letter-spacing: 0; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { padding-block: 3px; }
.site-footer a { text-decoration: none; }
.site-footer li a:hover { color: var(--brand); text-decoration: underline; text-underline-offset: 4px; }
.site-footer .tag { max-width: 22em; margin-top: 16px; }
.legal { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--line); font-size: .85rem; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
@media (max-width: 900px) { .foot { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .foot { grid-template-columns: 1fr; gap: 28px; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .board-trace { animation: none; stroke-dashoffset: 0; }
  .boot li { opacity: 1; }
  .boot .cursor { animation: none; }
}

/* ---------- home: service grid, scenarios, stats, practices, faq ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.svc-card { display: block; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.svc-card:hover { border-color: var(--brand); box-shadow: 0 12px 28px -18px rgba(23,23,28,.35); }
.svc-card .ico { margin-bottom: 16px; }
.svc-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.svc-card p { margin: 0; color: var(--ink-soft); font-size: .95rem; line-height: 1.55; }
@media (max-width: 1040px) { .svc-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .svc-grid { grid-template-columns: 1fr; } }

.scenarios { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.scn { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.scn img { width: 100%; height: auto; border-bottom: 1px solid var(--line); }
.scn h3 { padding: 24px 24px 0; font-size: 1.25rem; }
.scn p { padding: 8px 24px 0; margin: 0; color: var(--ink-soft); font-size: 1rem; }
.scn p.scope { padding-bottom: 24px; margin-top: 8px; color: var(--ink); font-size: .95rem; font-weight: 500; }
@media (max-width: 760px) { .scenarios { grid-template-columns: 1fr; } }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; border-top: 1px solid var(--line); }
.stat { padding: 28px 28px 0 0; }
.stat + .stat { padding-left: 28px; border-left: 1px solid var(--line); }
.stat-n { font-size: clamp(1.75rem, 2.9vw, 2.3rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; margin: 0 0 12px; white-space: nowrap; background: linear-gradient(100deg, #B01232, #F7519F); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-t { margin: 0 0 12px; font-size: 1rem; }
.stat-s { margin: 0; font-size: .85rem; color: var(--ink-soft); }
.stat-s a { text-underline-offset: 3px; }
.stat-s a:hover { color: var(--brand); }
@media (max-width: 820px) { .stats { grid-template-columns: 1fr; } .stat, .stat + .stat { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line); } }

.practices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.practices > div { border: 1px solid var(--line); border-top: 3px solid var(--pink); border-radius: var(--radius); padding: 24px; }
.practices h3 { margin-bottom: 6px; font-size: 1.1rem; }
.practices p { margin: 0; color: var(--ink-soft); font-size: .98rem; }
@media (max-width: 900px) { .practices { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .practices { grid-template-columns: 1fr; } }
.models { margin-top: 40px; }

.faq details { border-top: 1px solid var(--line); padding-block: 18px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq p { margin: 12px 0 0; color: var(--ink-soft); max-width: 36em; }
.plain { margin: 0; padding-left: 1.1em; color: var(--ink-soft); }
.plain li { padding-block: 2px; }
.tick li strong { font-weight: 700; }