/* Built by sites/build_sites.py — edit there. Fonts: SIL Open Font License (assets/fonts/OFL-*.txt). */
@font-face { font-family: "Urbanist"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/urbanist-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Urbanist"; font-weight: 700; font-style: normal; font-display: swap; src: url("fonts/urbanist-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Sans"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); }

:root { --ink: #15181E; --paper: #F6F7F7; --tint: #ECEFF0; --line: #DDE1E3; --line-strong: #B8BFC3; --muted: #4E5563;
  --accent: #13A3B5; --link: #0B6F7C; --btn: #15181E; --btn-hover: #2A303A; --focus: #13A3B5;
  --grad-a: #0E7C8C; --grad-b: #15181E;
  --display: "Urbanist", ui-sans-serif, system-ui, sans-serif; --display-weight: 700;
  --body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif; }
.hero { padding: clamp(64px, 3rem + 6vw, 160px) 0 clamp(56px, 3rem + 4vw, 120px); }
.hero h1 { font-size: clamp(2.6rem, 1.2rem + 5.4vw, 5.6rem); max-width: 13ch; letter-spacing: -.035em; line-height: 1.02; }
.hero .lede { margin-top: 28px; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.hero-mark svg { width: clamp(180px, 22vw, 320px); height: auto; display: block; }
@media (max-width: 760px) { .hero-in { grid-template-columns: 1fr; } .hero-mark { display: none; } }
.product { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 32px 72px; align-items: center; }
.product-logo { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: clamp(28px, 4vw, 56px); display: grid; place-items: center; }
.optara-logo { width: 100%; max-width: 380px; height: auto; }
.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 32px 56px; }
.principles h3 { font-size: 1.35rem; }
.principles p { color: var(--muted); margin: 0; }
@media (max-width: 760px) { .product { grid-template-columns: 1fr; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.6 var(--body); }
img, svg { max-width: 100%; }
a { color: var(--link); text-underline-offset: .18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 10px 14px; z-index: 10; }
.skip:focus { left: 16px; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.narrow { max-width: 720px; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); line-height: 1.12; margin: 0 0 .5em; }
h1 { font-size: clamp(2.25rem, 1.4rem + 3.6vw, 4rem); font-weight: var(--display-weight); letter-spacing: -.025em; }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem); font-weight: var(--display-weight); letter-spacing: -.015em; }
h3 { font-size: 1.2rem; font-weight: var(--display-weight); letter-spacing: -.005em; }
p { margin: 0 0 1em; max-width: 68ch; }
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; flex-wrap: wrap; }
.brand { display: inline-flex; line-height: 0; }
.brand-logo { height: 40px; width: auto; }
.nav { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 22px; margin: 0; padding: 0; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; padding: 10px 0; display: inline-block; }
.nav a:hover { color: var(--link); }
.lede { font-size: 1.22rem; color: var(--muted); max-width: 60ch; }
.actions { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 999px; background: var(--btn); color: #fff; font-weight: 600; text-decoration: none; }
.btn:hover { background: var(--btn-hover); color: #fff; }
.btn-quiet { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line-strong); }
.btn-quiet:hover { background: var(--tint); color: var(--ink); }
.band { padding: clamp(56px, 4rem + 3vw, 112px) 0; }
.band-tint { background: var(--tint); }
.band-ink { background: var(--ink); color: #E7E9F0; }
.band-ink h2 { color: #fff; }
.intro { color: var(--muted); font-size: 1.1rem; margin-bottom: 40px; }
.split { display: grid; gap: 48px 64px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li { position: relative; padding: 10px 0 10px 30px; border-top: 1px solid var(--line); }
.ticks li::before { content: ""; position: absolute; left: 4px; top: 21px; width: 10px; height: 10px; border-radius: 50%; border: 2.5px solid var(--accent); }
.contact .mail { font-weight: 600; }
.ticks-wide { columns: 2 340px; column-gap: 56px; }
.ticks-wide li { break-inside: avoid; }
.band-contact { background: var(--tint); }
.contact-page { padding-top: clamp(40px, 2rem + 3vw, 88px); }
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.25fr); gap: 40px 72px; align-items: start; }
.contact-aside { position: sticky; top: 104px; }
.eyebrow { font: 600 .8rem/1 var(--body); letter-spacing: .14em; text-transform: uppercase; color: var(--link); margin: 0 0 18px; }
.contact-aside .lede { font-size: 1.12rem; }
.next-steps { list-style: none; margin: 36px 0 0; padding: 0; counter-reset: s; display: grid; gap: 22px; }
.next-steps li { counter-increment: s; display: grid; grid-template-columns: 36px 1fr; column-gap: 16px; }
.next-steps li::before { content: counter(s); grid-row: span 2; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; font: 600 .95rem var(--display); color: var(--ink); background: var(--paper); box-shadow: inset 0 0 0 1.5px var(--accent); }
.next-steps strong { font-weight: 600; color: var(--ink); }
.next-steps span { color: var(--muted); font-size: .97rem; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: clamp(24px, 3.2vw, 44px); box-shadow: 0 1px 2px rgba(16, 20, 30, .04), 0 18px 48px -18px rgba(16, 20, 30, .18); }
.contact-form { display: grid; gap: 22px; }
.form-title { font-size: 1.4rem; margin: 0; }
.field { display: grid; gap: 8px; margin: 0; min-width: 0; }
fieldset.field { border: 0; padding: 0; }
.field > label, .field legend { font-weight: 600; font-size: .94rem; color: var(--ink); padding: 0; }
.field .opt { font-weight: 400; color: var(--muted); font-size: .85rem; margin-left: 4px; }
.field-row { display: grid; gap: 22px; align-items: start; grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); }
.field input, .field select, .field textarea { font: inherit; font-size: 1rem; color: var(--ink); background: var(--paper); border: 1px solid var(--line-strong); border-radius: 12px; padding: 12px 14px; width: 100%; min-height: 50px; transition: border-color .15s, box-shadow .15s, background-color .15s; }
.field input::placeholder, .field textarea::placeholder { color: #8A90A0; }
.field select { appearance: none; padding-right: 42px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' fill='none' stroke='%234A5163' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 18px; }
.field textarea { resize: vertical; min-height: 140px; line-height: 1.5; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--muted); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; background-color: #fff; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.field [aria-invalid="true"] { border-color: #B42318; background-color: #FFFBFA; }
.field-error { color: #B42318; margin: 0; font-size: .9rem; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; min-height: 42px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--paper); font-size: .95rem; font-weight: 500; color: var(--ink); transition: background-color .15s, border-color .15s, color .15s; }
.chip:hover span { border-color: var(--muted); }
.chip input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.form-alert { border: 1px solid #F4C7C3; background: #FEF3F2; color: #7A271A; border-radius: 12px; padding: 12px 16px; }
.form-alert p { margin: 0; }
.form-alert .field-error { color: inherit; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 4px; }
.btn-send { border: 0; cursor: pointer; font: inherit; font-weight: 600; gap: 10px; min-height: 52px; padding: 0 26px; }
.btn-icon { width: 18px; height: 18px; transition: transform .15s; }
.btn-send:hover .btn-icon { transform: translateX(3px); }
.form-note { color: var(--muted); font-size: .88rem; margin: 0; flex: 1 1 220px; }
.form-note a { color: var(--muted); }
.form-sent { text-align: center; padding-block: clamp(40px, 6vw, 72px); }
.form-sent .sent-icon { width: 64px; height: 64px; color: #12805C; margin-bottom: 12px; }
.form-sent h3 { font-size: 1.5rem; }
.form-sent p { margin-inline: auto; color: var(--muted); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } .contact-aside { position: static; } .next-steps { margin-top: 24px; } }
@media (max-width: 520px) { .btn-send { width: 100%; justify-content: center; } }
.pill { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin: 0 0 22px; padding: 6px 16px 6px 6px; border-radius: 999px; background: #fff; border: 1px solid var(--line); box-shadow: 0 4px 18px -8px rgba(16, 20, 30, .18); font-size: .9rem; color: var(--muted); max-width: 100%; }
.pill b { background: var(--btn); color: #fff; border-radius: 999px; padding: 5px 12px; font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; }
.center-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.center-head p { margin-inline: auto; }
.center-head .intro { margin-bottom: 0; }
.program-card { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); gap: 32px 56px; padding: clamp(28px, 4vw, 56px); border-radius: 24px; color: #fff; background: linear-gradient(135deg, var(--grad-a), var(--grad-b)); box-shadow: 0 24px 60px -24px rgba(16, 20, 30, .45); }
.program-card h3 { color: #fff; font-size: 1.35rem; }
.program-card ul { margin: 0; padding-left: 1.1em; display: grid; gap: 10px; }
.program-card li { color: rgba(255, 255, 255, .9); }
.program-card strong { color: #fff; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--tint); color: var(--ink); }
.btn-primary { }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line-strong); }
.btn-ghost:hover { background: var(--tint); color: var(--ink); }
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 0 22px; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 32px 18px 0; font-weight: 600; color: var(--ink); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font: 600 1.4rem/1 var(--display); color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 18px; color: var(--muted); }
.req { color: #B42318; margin-left: 2px; }
fieldset.field legend { margin-bottom: 8px; }
.check-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 8px 20px; }
.check { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; font-size: .97rem; }
.field .check input { width: 18px; height: 18px; min-height: 0; padding: 0; margin: 3px 0 0; border-radius: 4px; box-shadow: none; accent-color: var(--btn); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.prose h2 { font-size: 1.35rem; margin-top: 2em; }
.updated { color: var(--muted); }
.foot { border-top: 1px solid var(--line); padding: 40px 0 56px; color: var(--muted); font-size: .95rem; }
.foot-in { display: grid; gap: 10px; }
.foot-links { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 0; padding: 0; }
.foot-links a { color: var(--ink); padding: 6px 0; display: inline-block; }
.foot p { margin: 0; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }