/* drubelabs. shared site styles */
:root {
  --bg: #ffffff;
  --bg-2: #f3f7fe;
  --ink: #0b1b3f;
  --mid: #5a6a85;
  --faint: #c9d5ea;
  --line: rgba(11,27,63,.1);
  --blue: #2255c8;
  --blue-2: #1a44a3;
  --navy: #0a1a3f;
  --accent: #2255c8;
  --sans: 'Inter Tight', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Consolas, monospace;
  --brand: 'Poppins', 'Arial Rounded MT Bold', Arial, sans-serif;
  --gutter: clamp(20px, 4vw, 56px);
  --max: 1280px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.55 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--blue); color: #fff; }

.mono { font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; }
.mid { color: var(--mid); }
.wrap { padding-inline: var(--gutter); }
.inner { max-width: var(--max); margin-inline: auto; }
.section { padding-block: clamp(96px, 16vh, 180px); }
.section + .section { border-top: 1px solid var(--line); }

h1, h2, h3 { font-weight: 500; letter-spacing: -.035em; margin: 0; }
.h1 { font-size: clamp(42px, 6.4vw, 100px); line-height: 1; letter-spacing: -.045em; }
.h2 { font-size: clamp(32px, 4.2vw, 60px); line-height: 1.04; letter-spacing: -.04em; }
.h3 { font-size: clamp(22px, 2vw, 28px); line-height: 1.15; letter-spacing: -.02em; }
.h1 em, .h2 em { font-style: normal; color: var(--blue); }
.lead { font-size: clamp(17px, 1.4vw, 19px); color: var(--mid); max-width: 560px; }
.eyebrow { display: inline-block; margin-bottom: 20px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 22px; border: 0; border-radius: 999px; background: var(--blue); color: #fff; font-size: 15px; font-weight: 500; cursor: pointer; transition: background .25s; }
.btn:hover { background: var(--blue-2); }
.btn span { transition: transform .3s; } .btn:hover span { transform: translateX(4px); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1px var(--blue); color: var(--blue); }
.btn.light { background: #fff; color: var(--blue); }
.btn.light:hover { background: var(--bg-2); }
.link { display: inline-flex; gap: 10px; align-items: center; border-bottom: 1px solid currentColor; padding-bottom: 3px; }
.link span { transition: transform .3s; } .link:hover span { transform: translateX(5px); }

/* header */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 20; padding: calc(14px + env(safe-area-inset-top, 0px)) var(--gutter) 14px; display: flex; justify-content: space-between; align-items: center; gap: 24px; transition: background .4s, box-shadow .4s; }
.site-header.solid, body.menu-open .site-header { background: rgba(255,255,255,.9); backdrop-filter: saturate(1.4) blur(14px); box-shadow: 0 1px 0 var(--line); }
.wordmark { font-family: var(--brand); font-weight: 700; font-size: 21px; letter-spacing: -.02em; text-transform: none; color: var(--blue); }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand .sub { padding-left: 12px; border-left: 1px solid var(--line); color: var(--mid); }
.site-nav .ext { color: var(--blue) !important; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 15px; }
.site-nav a:not(.btn) { color: var(--mid); transition: color .2s; }
.site-nav a:not(.btn):hover, .site-nav a[aria-current="page"] { color: var(--blue); }
.site-nav .btn { height: 38px; padding: 0 18px; font-size: 14px; }
.menu-btn { display: none; width: 40px; height: 40px; border: 0; background: none; position: relative; cursor: pointer; }
.menu-btn i { position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--ink); transition: transform .3s, top .3s; }
.menu-btn i:first-child { top: 16px; } .menu-btn i:last-child { top: 23px; }
body.menu-open .menu-btn i:first-child { top: 20px; transform: rotate(45deg); }
body.menu-open .menu-btn i:last-child { top: 20px; transform: rotate(-45deg); }
.mobile-menu { position: fixed; inset: 0; z-index: 15; background: var(--bg); padding: calc(96px + env(safe-area-inset-top, 0px)) var(--gutter) 40px; display: flex; flex-direction: column; gap: 6px; opacity: 0; pointer-events: none; transition: opacity .3s; }
.mobile-menu a { font-size: 36px; font-weight: 500; letter-spacing: -.03em; padding: 6px 0; border-bottom: 1px solid var(--line); }
.mobile-menu .btn { margin-top: 24px; align-self: flex-start; font-size: 15px; letter-spacing: 0; border: 0; padding: 0 22px; }
body.menu-open .mobile-menu { opacity: 1; pointer-events: auto; }
@media (max-width: 1040px) { .site-nav .ext { display: none; } }
@media (max-width: 760px) { .site-nav { display: none; } .menu-btn { display: block; } }

/* page hero (inner pages) */
.page-hero { padding: calc(150px + env(safe-area-inset-top, 0px)) var(--gutter) clamp(64px, 10vh, 110px); }
.page-hero .h1 { max-width: 14ch; }
.page-hero .lead { margin-top: 24px; }

/* feature grid */
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(24px, 4vw, 64px); }
@media (max-width: 800px) { .grid-3 { grid-template-columns: 1fr; gap: 48px; } }
.item { border-top: 2px solid var(--blue); padding-top: 22px; }
.item .mono { color: var(--blue); }
.item h3 { margin: 12px 0 10px; }
.item p { margin: 0; color: var(--mid); max-width: 36ch; }
.sec-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(48px, 8vh, 80px); }
.sec-head p { margin: 0; max-width: 400px; color: var(--mid); }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } }
.card { background: var(--bg-2); border-radius: 10px; padding: 28px; min-height: 240px; display: flex; flex-direction: column; justify-content: space-between; transition: background .3s, transform .4s cubic-bezier(.2,.8,.2,1); }
.card:hover { background: #e9f0fd; transform: translateY(-4px); }
.card p { margin: 10px 0 0; color: var(--mid); }
.card svg { width: 36px; height: 36px; }

/* dark band / CTA */
.band { background: var(--blue); color: #fff; text-align: center; }
.band .h2 { margin: 0 auto 18px; max-width: 18ch; }
.band p { margin: 0 auto 32px; max-width: 520px; color: rgba(255,255,255,.8); }

/* specs */
.specs { border-top: 2px solid var(--blue); }
.spec { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,2fr); gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.spec span:first-child { color: var(--mid); }
@media (max-width: 600px) { .spec { grid-template-columns: 1fr; gap: 4px; } }

/* forms */
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.field input, .field select, .field textarea { width: 100%; border: 0; border-radius: 8px; background: #fff; box-shadow: inset 0 0 0 1px var(--line); padding: 14px 16px; font-size: 16px; outline: none; transition: box-shadow .2s; }
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { box-shadow: inset 0 0 0 1.5px var(--blue); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-status { margin-top: 14px; min-height: 18px; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: clamp(56px, 9vh, 90px) var(--gutter) calc(28px + env(safe-area-inset-bottom, 0px)); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 32px; }
@media (max-width: 800px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-grid > :first-child { grid-column: 1 / -1; } }
.foot-grid p { margin: 12px 0 0; color: var(--mid); max-width: 30ch; font-size: 15px; }
.foot-grid h4 { margin: 0 0 14px; font: 400 11.5px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mid); }
.foot-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.foot-grid a:hover { color: var(--blue); }
.foot-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); }

/* reveal on scroll */
.rv { opacity: 0; transform: translateY(24px); transition: opacity 1s cubic-bezier(.2,.8,.2,1), transform 1s cubic-bezier(.2,.8,.2,1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; }
  .rv { opacity: 1; transform: none; }
}

/* ---------- refinements & interaction ---------- */
#progress { position: fixed; top: 0; left: 0; height: 2px; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: var(--blue); z-index: 30; }
.btn { transition: background .25s, transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .25s; will-change: transform; }
.btn:not(.ghost):not(.light):hover { box-shadow: 0 10px 24px -10px rgba(34,85,200,.6); }

/* cursor-following spotlight on cards */
[data-spot] { position: relative; isolation: isolate; }
[data-spot]::after { content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1; opacity: 0; transition: opacity .35s;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%), rgba(34,85,200,.12), transparent 60%); }
[data-spot]:hover::after { opacity: 1; }
.opt.b[data-spot]::after, .band [data-spot]::after { background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.14), transparent 60%); }

/* card icons draw themselves on hover */
.card svg *, .cap svg * { stroke-dasharray: 120; stroke-dashoffset: 0; transition: stroke-dashoffset 0s; }
.card:hover svg *, .cap:hover svg * { animation: draw 1.1s cubic-bezier(.2,.8,.2,1); }
@keyframes draw { from { stroke-dashoffset: 120; } to { stroke-dashoffset: 0; } }

/* flowing lines in blue bands */
.band { position: relative; overflow: hidden; }
.band > .waves { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.band > :not(.waves) { position: relative; z-index: 1; }

/* section headings get a short blue rule */
.sec-head .h2::after { content: ''; display: block; width: 40px; height: 2px; margin-top: 22px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .9s .2s cubic-bezier(.2,.8,.2,1); }
.sec-head.in .h2::after { transform: scaleX(1); }

/* ---------- usability ---------- */
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 50; padding: 10px 14px; border-radius: 8px; background: var(--blue); color: #fff; transition: top .2s; }
.skip:focus { top: 12px; }
#toTop { position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 25; width: 46px; height: 46px; border: 0; border-radius: 50%; background: var(--blue); color: #fff; font-size: 18px; cursor: pointer; box-shadow: 0 10px 24px -10px rgba(34,85,200,.7); opacity: 0; transform: translateY(12px); pointer-events: none; transition: opacity .3s, transform .3s, background .2s; }
#toTop.show { opacity: 1; transform: none; pointer-events: auto; }
#toTop:hover { background: var(--blue-2); }

/* sticky in-page menu */
.subnav { position: sticky; top: 66px; z-index: 9; background: rgba(255,255,255,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.subnav { padding-inline: var(--gutter); }
.subnav .inner { display: flex; gap: 6px; overflow-x: auto; padding: 10px 0; margin-left: auto; scrollbar-width: none; }
.subnav .inner a:first-child { margin-left: -14px; }
.subnav .inner::-webkit-scrollbar { display: none; }
.subnav a { flex: none; padding: 8px 14px; border-radius: 999px; color: var(--mid); font-size: 14.5px; transition: background .2s, color .2s; }
.subnav a:hover { color: var(--blue); }
.subnav a.on { background: var(--bg-2); color: var(--blue); }
[id] { scroll-margin-top: 130px; }

/* FAQ */
.faq { border-top: 1px solid var(--line); max-width: 900px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 22px 0; font-size: clamp(18px, 1.6vw, 21px); font-weight: 500; letter-spacing: -.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--blue); }
.faq summary i { flex: none; width: 32px; height: 32px; border-radius: 50%; background: var(--bg-2); position: relative; transition: background .25s, transform .35s; }
.faq summary i::before, .faq summary i::after { content: ''; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; background: var(--blue); transform: translate(-50%,-50%); transition: transform .35s; }
.faq summary i::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq details[open] summary i { background: var(--blue); }
.faq details[open] summary i::before { background: #fff; }
.faq details[open] summary i::after { background: #fff; transform: translate(-50%,-50%) rotate(0deg); }
.faq .ans { overflow: hidden; }
.faq .ans p { margin: 0; padding: 0 56px 24px 0; color: var(--mid); max-width: 68ch; }

/* choice chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-btn { border: 0; cursor: pointer; padding: 11px 18px; border-radius: 999px; background: var(--bg-2); color: var(--ink); font-size: 15px; box-shadow: inset 0 0 0 1px transparent; transition: background .2s, color .2s, box-shadow .2s; }
.chip-btn:hover { box-shadow: inset 0 0 0 1px var(--blue); color: var(--blue); }
.chip-btn[aria-pressed="true"] { background: var(--blue); color: #fff; box-shadow: none; }

/* form feedback */
.field .err-msg { min-height: 0; color: #c2410c; font-size: 13.5px; }
.field.err input, .field.err textarea { box-shadow: inset 0 0 0 1.5px #c2410c; }
.success { display: none; border-radius: 14px; padding: 32px; background: var(--bg-2); }
.success.show { display: block; animation: rise .5s cubic-bezier(.2,.8,.2,1); }
.success .tick { width: 48px; height: 48px; border-radius: 50%; background: var(--blue); display: grid; place-items: center; color: #fff; font-size: 22px; margin-bottom: 18px; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

/* linked cards */
a.card .more { display: inline-flex; gap: 8px; margin-top: 14px; color: var(--blue); font-size: 15px; opacity: 0; transform: translateY(6px); transition: opacity .3s, transform .3s; }
a.card:hover .more, a.card:focus-visible .more { opacity: 1; transform: none; }
@media (hover: none) { a.card .more { opacity: 1; transform: none; } }

/* responsive images: <picture> must not change layout */
picture { display: contents; }