:root {
  --ink: #0d2534;
  --ink-soft: #183747;
  --accent: #ef6b3a;
  --accent-dark: #d64c1b;
  --paper: #f6f2ea;
  --white: #ffffff;
  --line: #d8d4cc;
  --muted: #65737b;
  --success: #35856b;
  --shadow: 0 24px 70px rgba(13, 37, 52, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Segoe UI", Arial, sans-serif; line-height: 1.55; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 100; background: var(--white); padding: .75rem 1rem; }
.skip-link:focus { top: 1rem; }

.site-header { height: 82px; padding: 0 clamp(1.2rem, 4vw, 4.5rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; border-bottom: 1px solid rgba(13,37,52,.12); background: rgba(246,242,234,.94); backdrop-filter: blur(14px); position: sticky; top: 0; z-index: 30; }
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; background: var(--accent); color: var(--white); clip-path: polygon(14% 0,100% 0,86% 100%,0 100%); transform: skew(-3deg); }
.brand-mark span { font: 800 1.45rem/1 "Manrope", sans-serif; transform: skew(3deg); }
.brand-copy { display: grid; line-height: 1; gap: 4px; }
.brand-copy strong { font: 800 1rem "Manrope", sans-serif; letter-spacing: .13em; }
.brand-copy small { font-size: .71rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
nav { display: flex; gap: 2.2rem; }
nav a { text-decoration: none; font: 600 .84rem "Manrope", sans-serif; }
nav a:hover { color: var(--accent-dark); }
.header-phone { color: var(--white); background: var(--ink); text-decoration: none; padding: .76rem 1rem; font: 700 .84rem "Manrope", sans-serif; display: inline-flex; gap: .65rem; align-items: center; }

.hero-services { padding: clamp(3.5rem, 7vw, 7rem) clamp(1.2rem, 6vw, 7.5rem) clamp(5rem, 8vw, 8rem); overflow: hidden; }
.hero-grid { max-width: 1400px; margin: 0 auto clamp(7rem, 12vw, 12rem); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr); align-items: center; gap: clamp(2rem, 8vw, 8rem); }
.eyebrow { display: flex; align-items: center; gap: .7rem; margin: 0 0 1.5rem; text-transform: uppercase; letter-spacing: .14em; font: 700 .73rem "Manrope", sans-serif; color: var(--muted); }
.eyebrow > span { display: block; width: 32px; height: 2px; background: var(--accent); }
h1, h2, h3 { font-family: "Manrope", sans-serif; line-height: 1.04; margin-top: 0; }
h1 { max-width: 760px; margin-bottom: 1.6rem; font-size: clamp(3.25rem, 6.4vw, 6.7rem); letter-spacing: -.065em; }
h1 em, h2 em { color: var(--accent); font-style: normal; }
.hero-lead { max-width: 650px; color: #4c606a; font-size: clamp(1.08rem, 1.6vw, 1.3rem); margin: 0 0 2.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.button { min-height: 52px; border: 0; padding: .95rem 1.3rem; display: inline-flex; align-items: center; justify-content: center; gap: 1.7rem; text-decoration: none; cursor: pointer; font: 700 .85rem "Manrope", sans-serif; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--accent); }
.button-primary:hover { background: var(--accent-dark); }
.button-secondary { border: 1px solid var(--ink); background: transparent; }
.button-secondary:hover { background: var(--ink); color: var(--white); }
.hero-trust { list-style: none; padding: 0; margin: 3rem 0 0; display: flex; gap: 0; border-top: 1px solid var(--line); }
.hero-trust li { padding: 1.2rem clamp(.8rem, 2vw, 2.2rem) 0 0; margin-right: clamp(.8rem, 2vw, 2.2rem); border-right: 1px solid var(--line); display: grid; }
.hero-trust li:last-child { border-right: 0; }
.hero-trust strong { font: 800 .88rem "Manrope", sans-serif; }
.hero-trust span { color: var(--muted); font-size: .84rem; }

.hero-visual { min-height: 610px; position: relative; isolation: isolate; background-color: var(--ink); background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 32px 32px; box-shadow: var(--shadow); transform: rotate(1.5deg); }
.hero-visual::before { content: ""; position: absolute; inset: 8% 8%; border: 1px solid rgba(255,255,255,.15); }
.duct { position: absolute; z-index: -1; background: linear-gradient(90deg, #8295a0, #d4dde0 18%, #758894 44%, #d4dde0 62%, #617581); box-shadow: 0 18px 35px rgba(0,0,0,.3); }
.duct::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 42px, rgba(10,28,38,.3) 43px 46px); }
.duct-one { width: 76%; height: 18%; top: 18%; left: -6%; }
.duct-two { width: 18%; height: 59%; right: 17%; top: -6%; background: linear-gradient(180deg, #8295a0, #d4dde0 18%, #758894 44%, #d4dde0 62%, #617581); }
.duct-two::after { background: repeating-linear-gradient(0deg, transparent 0 42px, rgba(10,28,38,.3) 43px 46px); }
.fan { width: 315px; max-width: 70%; aspect-ratio: 1; border-radius: 50%; position: absolute; top: 38%; left: 17%; display: grid; place-items: center; background: #c7d1d5; border: 18px solid #9cadb4; box-shadow: 0 25px 45px rgba(0,0,0,.45), inset 0 0 0 4px rgba(255,255,255,.45); }
.fan-ring { position: absolute; inset: 15%; border-radius: 50%; background: #213e4c; }
.fan-ring span { position: absolute; inset: 8% 38% 48%; transform-origin: 50% 115%; border-radius: 80% 8% 70% 20%; background: linear-gradient(135deg, #e6edf0, #728895); }
.fan-ring span:nth-child(2) { transform: rotate(60deg); }.fan-ring span:nth-child(3) { transform: rotate(120deg); }.fan-ring span:nth-child(4) { transform: rotate(180deg); }.fan-ring span:nth-child(5) { transform: rotate(240deg); }.fan-ring span:nth-child(6) { transform: rotate(300deg); }
.fan-core { width: 16%; aspect-ratio: 1; border-radius: 50%; background: var(--accent); z-index: 2; box-shadow: 0 0 0 8px #17313f; }
.spec-tag { position: absolute; right: -28px; bottom: 28px; background: var(--accent); color: var(--white); padding: 1.2rem 1.5rem; min-width: 200px; display: grid; }
.spec-tag b { font: 800 .8rem "Manrope", sans-serif; letter-spacing: .1em; }
.spec-tag span { font-size: .83rem; }

.section-heading { max-width: 1400px; margin: 0 auto 3rem; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .6fr); column-gap: 7rem; }
.section-heading .eyebrow { grid-column: 1 / -1; }
.section-heading h2, .capabilities h2, .inquiry h2 { font-size: clamp(2.5rem, 4.6vw, 5rem); letter-spacing: -.055em; margin-bottom: 0; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.07rem; align-self: end; margin: 0 0 .5rem; }
.service-grid { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
.service-card { min-height: 330px; padding: clamp(1.5rem, 3vw, 2.5rem); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); position: relative; transition: background .25s ease, transform .25s ease; }
.service-card:hover { background: var(--white); transform: translateY(-4px); box-shadow: 0 16px 40px rgba(13,37,52,.07); z-index: 2; }
.service-featured { background: var(--ink); color: var(--white); }
.service-featured:hover { background: var(--ink-soft); }
.service-number { position: absolute; top: 1.5rem; right: 1.5rem; font: 700 .7rem "Manrope", sans-serif; color: var(--muted); }
.service-icon { width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid currentColor; color: var(--accent); font-size: 1.5rem; margin-bottom: 2.2rem; }
.service-card h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.service-card p { color: var(--muted); margin: 0; }
.service-featured p { color: #b6c3ca; }
.service-card ul { list-style: none; margin: 1.3rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.service-card li { padding: .25rem .5rem; border: 1px solid rgba(255,255,255,.22); font-size: .77rem; color: #dbe3e7; }

.capabilities { background: var(--ink); color: var(--white); padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 6vw, 7.5rem); display: grid; grid-template-columns: minmax(0, .85fr) minmax(480px, 1.15fr); gap: clamp(4rem, 9vw, 10rem); position: relative; overflow: hidden; }
.capabilities::after { content: "E"; position: absolute; left: -4rem; bottom: -12rem; color: rgba(255,255,255,.025); font: 800 36rem "Manrope", sans-serif; pointer-events: none; }
.capabilities-intro, .capabilities-lists { position: relative; z-index: 1; }
.eyebrow.light { color: #9eb0b9; }
.capabilities-intro > p:not(.eyebrow) { color: #aebdc4; max-width: 590px; font-size: 1.1rem; }
.text-link { display: inline-flex; gap: 2rem; margin-top: 1.5rem; padding-bottom: .45rem; text-decoration: none; border-bottom: 1px solid var(--accent); font: 700 .88rem "Manrope", sans-serif; }
.text-link span { color: var(--accent); }
.capability-block { border-top: 1px solid rgba(255,255,255,.2); padding: 1.5rem 0 2.5rem; }
.capability-title { display: flex; align-items: baseline; gap: 1.2rem; margin-bottom: 1rem; }
.capability-title > span { color: var(--accent); font: 700 .7rem "Manrope", sans-serif; }
.capability-title h3 { font-size: 1.6rem; margin: 0; }
.capability-block ul { list-style: none; margin: 0; padding: 0; }
.capability-block li { display: flex; justify-content: space-between; gap: 1.5rem; padding: .8rem 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.capability-block b { font-weight: 600; }
.capability-block li span { text-align: right; color: #91a5af; }

.inquiry { padding: clamp(5rem, 9vw, 9rem) clamp(1.2rem, 6vw, 7.5rem) 0; }
.inquiry-heading { max-width: 1400px; margin: 0 auto 3.5rem; }
.inquiry-heading > p:last-child { max-width: 630px; color: var(--muted); font-size: 1.08rem; }
.inquiry-layout { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .8fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.quote-form { background: var(--white); padding: clamp(1.5rem, 3vw, 3rem); box-shadow: var(--shadow); }
fieldset { border: 0; padding: 0 0 2.5rem; margin: 0 0 2.5rem; border-bottom: 1px solid var(--line); }
legend { width: 100%; padding: 0; margin-bottom: 1.4rem; font: 700 1.05rem "Manrope", sans-serif; }
legend span { color: var(--accent); font-size: .7rem; margin-right: .7rem; }
.check-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; }
.check-grid label { position: relative; cursor: pointer; }
.check-grid input { position: absolute; opacity: 0; }
.check-grid span { min-height: 48px; border: 1px solid var(--line); display: grid; place-items: center; text-align: center; padding: .5rem; font: 600 .82rem "Manrope", sans-serif; transition: .2s ease; }
.check-grid span:hover { border-color: var(--ink); }
.check-grid input:checked + span { color: var(--white); background: var(--ink); border-color: var(--ink); box-shadow: inset 4px 0 var(--accent); }
.check-grid input:focus-visible + span { outline: 3px solid rgba(239,107,58,.35); outline-offset: 2px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: grid; gap: .45rem; margin-bottom: 1rem; }
.field > span { color: var(--muted); font: 600 .76rem "Manrope", sans-serif; }
.field input, .field select, .field textarea { width: 100%; border: 1px solid var(--line); background: #fbfaf7; color: var(--ink); padding: .85rem .9rem; border-radius: 0; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(239,107,58,.35); border-color: var(--accent); }
.field textarea { resize: vertical; }
.field-error { color: #b3321f; font-size: .82rem; margin: .7rem 0 0; min-height: 1.25rem; }
.form-submit { width: 100%; }
.privacy-note { color: var(--muted); font-size: .78rem; text-align: center; }
.privacy-note span { color: var(--success); }
.message-panel { background: var(--ink); color: var(--white); min-height: 560px; position: sticky; top: 106px; }
.message-panel-header { padding: 1.2rem 1.5rem; display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.16); font: 700 .8rem "Manrope", sans-serif; }
.status-dot { color: #99d7bd; text-transform: uppercase; font-size: .66rem; letter-spacing: .12em; }
.status-dot::before { content: ""; width: 6px; height: 6px; margin-right: .45rem; display: inline-block; border-radius: 50%; background: #65c99f; }
.message-empty { min-height: 280px; display: grid; place-content: center; justify-items: center; padding: 2rem; text-align: center; color: #92a7b1; }
.message-empty > span { font-size: 2rem; color: var(--accent); }
.message-empty p { max-width: 260px; }
.message-result { padding: 1.5rem; }
.message-result pre { white-space: pre-wrap; overflow-wrap: anywhere; margin: 0 0 1rem; font: 400 .92rem/1.55 "Segoe UI", Arial, sans-serif; color: #e3eaed; max-height: 330px; overflow-y: auto; }
.copy-button { width: 100%; background: var(--white); color: var(--ink); }
.copy-status { min-height: 1.3rem; text-align: center; color: #9bd9be; font-size: .8rem; }
.direct-contact { border-top: 1px solid rgba(255,255,255,.16); padding: 1.5rem; }
.direct-contact > p { color: #91a5af; margin-top: 0; }
.direct-contact a { display: flex; justify-content: space-between; gap: 1rem; padding: .7rem 0; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.1); }
.direct-contact a span { color: #91a5af; }
.direct-contact a strong { color: var(--white); font-weight: 600; }
footer { max-width: 1400px; margin: 7rem auto 0; padding: 2rem 0; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.footer-brand { display: flex; align-items: center; gap: .8rem; }
.brand-mark.small { width: 34px; height: 34px; }
.footer-brand > div { display: grid; }
.footer-brand strong { font: 800 .88rem "Manrope", sans-serif; letter-spacing: .1em; }
.footer-brand div span, .footer-data { color: var(--muted); font-size: .78rem; }
.footer-data { display: flex; gap: 1.5rem; }
.back-top { font: 700 .78rem "Manrope", sans-serif; text-decoration: none; }

@media (max-width: 1000px) {
  nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 480px; max-width: 740px; width: 100%; }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .capabilities { grid-template-columns: 1fr; }
  .capabilities-intro { max-width: 760px; }
  .inquiry-layout { grid-template-columns: 1fr; }
  .message-panel { position: static; }
}

@media (max-width: 640px) {
  .site-header { height: 68px; padding: 0 1rem; }
  .brand-copy small { display: none; }
  .header-phone { padding: .65rem .7rem; font-size: .75rem; }
  .hero-services { padding-top: 3rem; }
  h1 { font-size: clamp(2.75rem, 14vw, 4.25rem); }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .hero-trust { justify-content: space-between; }
  .hero-trust li { padding-right: .45rem; margin-right: .45rem; }
  .hero-trust span { font-size: .72rem; }
  .hero-visual { min-height: 365px; }
  .fan { left: 13%; width: 245px; }
  .spec-tag { right: -5px; bottom: 15px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .capabilities { gap: 3rem; }
  .capability-block li { display: grid; gap: .15rem; }
  .capability-block li span { text-align: left; }
  .check-grid { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .quote-form { margin-inline: -.2rem; }
  .direct-contact a { display: grid; gap: .1rem; }
  footer { align-items: flex-start; flex-direction: column; margin-top: 4rem; }
  .footer-data { display: grid; gap: .2rem; }
  .back-top { position: absolute; right: 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}