@font-face { font-family: Manrope; src: url('assets/manrope.woff2') format('woff2'); font-weight: 200 800; font-style: normal; font-display: swap; }

/* Brand palette (deep teal): seven core colours plus neutrals; every other shade is a color-mix() tint of these.
   Token names predate the teal palette: --green is the cool accent and --sage is the pale tint. */
:root {
  --ink: #12333c; --deep: #0f3a44; --green: #0b6672; --bright: #f56635; --orange: #bd3c17; --sage: #bfe5ea; --paper: #f8fbfb;
  --white: #ffffff; --muted: #55696f; --line: #d5e2e5;
  --ink-deep: color-mix(in srgb, var(--ink) 60%, #000);
  --line-strong: color-mix(in srgb, var(--green) 30%, var(--paper));
  --green-soft: color-mix(in srgb, var(--sage) 40%, var(--white));
  --green-wash: color-mix(in srgb, var(--sage) 25%, var(--white));
  --on-dark: color-mix(in srgb, var(--sage) 50%, var(--paper));
  --rule-on-dark: color-mix(in srgb, var(--sage) 30%, var(--deep));
  --orange-light: color-mix(in srgb, var(--bright) 75%, var(--paper));
  --orange-soft: color-mix(in srgb, var(--bright) 12%, var(--paper));
  --radius: 10px;
}

/* Base */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Manrope, Arial, sans-serif; font-size: 16px; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a, button, summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
::selection { background: color-mix(in srgb, var(--bright) 45%, var(--paper)); color: var(--ink); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
.shell, .site-header { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 10; background: var(--ink); color: var(--white); padding: 10px 20px; }
.skip-link:focus { top: 10px; }
h2 { font-size: clamp(30px, 3.3vw, 44px); line-height: 1.15; letter-spacing: -0.03em; font-weight: 600; margin: 0; }
h3 { font-size: 21px; line-height: 1.3; letter-spacing: -0.015em; font-weight: 650; margin: 0 0 10px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 16px; font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--green); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--bright); flex-shrink: 0; }

/* Buttons and links */
.button { display: inline-flex; align-items: center; gap: 18px; padding: 15px 22px; border: 0; border-radius: 6px; font-size: 15px; font-weight: 700; transition: background 0.2s, transform 0.2s; }
.button:hover { transform: translateY(-2px); }
.button span { font-size: 20px; line-height: 1; font-weight: 400; }
.button-primary { background: var(--bright); color: var(--ink-deep); }
.button-primary:hover { background: var(--orange-light); }
.button-dark { background: var(--ink); color: var(--paper); }
.button-dark:hover { background: var(--green); }
.text-link { display: inline-flex; align-items: center; gap: 12px; padding: 0 0 4px; border: 0; border-bottom: 1.5px solid currentColor; background: none; font-size: 15px; font-weight: 700; }
.text-link:hover { color: var(--orange); }
.text-link span { font-size: 18px; }

/* Header */
.site-header { height: 96px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; }
.brand img { width: 106px; height: auto; }
.site-header nav { display: flex; align-items: center; gap: 32px; font-size: 15px; font-weight: 600; }
.site-header nav > a:not(.nav-cta):hover { color: var(--orange); }
.nav-cta { display: inline-flex; align-items: center; gap: 14px; padding: 11px 18px; border-radius: 6px; background: var(--bright); color: var(--ink-deep); }
.nav-cta:hover { background: var(--orange-light); }
.nav-cta span { font-size: 18px; line-height: 1; }
.menu-toggle { display: none; }

/* Hero */
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; padding-block: 72px 96px; }
.hero h1 { font-size: clamp(40px, 4.6vw, 64px); line-height: 1.08; letter-spacing: -0.035em; font-weight: 650; margin: 0 0 22px; }
.lede { font-size: 18px; line-height: 1.7; color: var(--muted); max-width: 540px; margin: 0 0 30px; }
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero-facts { list-style: none; margin: 44px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 12px 36px; }
.hero-facts li { font-size: 14px; line-height: 1.45; color: var(--muted); }
.hero-facts strong { display: block; font-size: 15px; color: var(--ink); }
.hero-visual { position: relative; min-width: 0; }
.photo-frame { position: relative; height: 520px; border-radius: 160px var(--radius) var(--radius) var(--radius); overflow: hidden; background: var(--muted); }
.photo-frame > img { width: 100%; height: 100%; object-fit: cover; object-position: 49% 50%; }
.photo-shade { position: absolute; inset: 0; background: linear-gradient(0deg, color-mix(in srgb, var(--ink) 55%, transparent), transparent 45%); }
.photo-label { position: absolute; top: 22px; right: 22px; margin: 0; padding: 6px 14px; border-radius: 30px; background: color-mix(in srgb, var(--ink) 65%, transparent); color: var(--paper); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; }
.coverage-card { position: absolute; left: -32px; bottom: 32px; display: grid; gap: 14px; padding: 20px 24px; min-width: 280px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 14px 36px color-mix(in srgb, var(--ink) 12%, transparent); }
.coverage-card > div { display: flex; align-items: center; gap: 14px; }
.coverage-card p { margin: 0; line-height: 1.35; }
.coverage-card strong { display: block; font-size: 15px; }
.coverage-card span:not(.coverage-icon) { font-size: 14px; color: var(--muted); }
.coverage-icon { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--green-soft); flex-shrink: 0; }
.coverage-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--green); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Sections */
.section { padding-block: 96px; }
.band { background: var(--green-wash); border-block: 1px solid var(--line); padding-block: 88px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 48px; margin-bottom: 40px; }
.section-heading > p { max-width: 400px; margin: 0; color: var(--muted); }

/* Where we can help */
.help-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.help-grid li { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; padding: 24px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.help-grid p { margin: 0; font-size: 17px; line-height: 1.5; font-weight: 600; }
.tag { padding: 3px 11px; border-radius: 30px; background: var(--green-soft); color: var(--green); font-size: 12px; font-weight: 700; }
.tag-onsite { background: var(--orange-soft); color: var(--orange); }

/* Services */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card { display: flex; flex-direction: column; padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color 0.2s; }
.service-card:hover { border-color: var(--line-strong); }
.service-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 26px; }
.service-icon { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; background: var(--green-soft); flex-shrink: 0; }
.service-icon svg { width: 30px; height: 30px; fill: none; stroke: var(--green); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.availability { font-size: 12px; font-weight: 700; color: var(--muted); text-align: right; }
.service-card h3 { font-size: 24px; }
.service-card > p { margin: 0 0 20px; color: var(--muted); }
.service-card ul { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.service-card li { display: flex; gap: 10px; }
.service-card li::before { content: '+'; color: var(--orange); font-weight: 700; }
.service-link { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); font-size: 15px; font-weight: 700; }
.service-link:hover { color: var(--orange); }
.service-link span { font-size: 20px; font-weight: 400; color: var(--orange); }

/* On-site IT */
.onsite-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; padding: 64px; border-radius: 14px; background: var(--deep); color: var(--paper); }
.onsite .eyebrow { color: var(--on-dark); }
.onsite h2 { margin-bottom: 20px; }
.onsite-copy > p:not(.eyebrow) { color: var(--on-dark); margin: 0 0 16px; max-width: 420px; }
.onsite .text-link { margin-top: 12px; color: var(--paper); }
.onsite .text-link:hover { color: var(--orange-light); }
.onsite-list { list-style: none; margin: 0; padding: 0; }
.onsite-list li { display: grid; grid-template-columns: 40px 1fr; gap: 18px; align-items: start; padding: 18px 0; border-bottom: 1px solid var(--rule-on-dark); }
.onsite-list li:first-child { border-top: 1px solid var(--rule-on-dark); }
.onsite-list svg { width: 36px; height: 36px; fill: none; stroke: var(--sage); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.onsite-list p { margin: 0; line-height: 1.5; }
.onsite-list strong { display: block; font-size: 17px; }
.onsite-list span { font-size: 15px; color: var(--on-dark); }

/* Why VietAve */
.why { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: start; }
.why h2 { margin-bottom: 22px; }
.why-copy p:not(.eyebrow) { color: var(--muted); }
.why-copy .large-copy { font-size: 19px; line-height: 1.6; color: var(--ink); }
.principles { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 36px 32px; }
.principles li { padding-top: 18px; border-top: 2px solid var(--ink); }
.principles b { display: block; margin-bottom: 10px; font-size: 13px; color: var(--orange); }
.principles h3 { font-size: 19px; margin-bottom: 8px; }
.principles p { margin: 0; font-size: 15px; color: var(--muted); }

/* How we work */
.approach { padding-top: 0; }
.process-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.process-grid li { padding-top: 20px; border-top: 1px solid var(--line-strong); }
.step-number { display: block; margin-bottom: 14px; font-size: 13px; font-weight: 700; color: var(--orange); }
.process-grid p { margin: 0; font-size: 15px; color: var(--muted); max-width: 320px; }

/* FAQ */
.faq-section { display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; padding-block: 72px 96px; border-top: 1px solid var(--line); }
.faq-section h2 { font-size: clamp(28px, 2.8vw, 36px); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 17px; font-weight: 600; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--orange); }
.faq-list summary > span { font-size: 24px; font-weight: 400; transition: transform 0.2s; }
.faq-list details[open] summary > span { transform: rotate(45deg); }
.faq-list details > p { margin: 0 24px 22px 0; color: var(--muted); }

/* Contact */
.contact-inner { display: grid; grid-template-columns: 1.15fr 1fr; gap: 72px; padding: 60px 64px; border-radius: 14px; background: var(--ink); color: var(--paper); }
.contact .eyebrow { color: var(--on-dark); }
.contact h2 { font-size: clamp(34px, 3.8vw, 50px); margin-bottom: 20px; }
.contact h2 span { display: block; color: var(--orange-light); }
.contact-inner > div > p:not(.eyebrow) { color: var(--on-dark); max-width: 460px; }
.contact .button { margin-top: 10px; }
.include { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--rule-on-dark); }
.include h3 { font-size: 15px; margin-bottom: 10px; }
.include ul { margin: 0; padding-left: 20px; color: var(--on-dark); font-size: 15px; }
.contact-details { display: flex; flex-direction: column; justify-content: flex-end; }
.contact-details > a { display: flex; justify-content: space-between; gap: 16px; padding-block: 14px; border-bottom: 1px solid var(--rule-on-dark); font-size: 21px; }
.contact-details > a:hover { color: var(--orange-light); }
.contact-details > a > span { font-size: 22px; }
.contact-details > p { margin: 26px 0 0; color: var(--on-dark); }

/* Footer */
.footer { display: flex; align-items: center; gap: 28px; padding-block: 40px; font-size: 14px; color: var(--muted); }
.footer .brand img { width: 84px; }
.footer p { margin: 0; }
.footer small { margin-left: auto; font-size: 13px; }
.back-top { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; font-size: 17px; color: var(--ink); }
.back-top:hover { background: var(--green-soft); }

/* Project dialog */
dialog { width: min(540px, calc(100% - 32px)); max-height: 90dvh; padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); color: var(--ink); overscroll-behavior: contain; }
dialog::backdrop { background: color-mix(in srgb, var(--ink) 80%, transparent); backdrop-filter: blur(5px); }
dialog h2 { font-size: 32px; }
dialog > p:not(.eyebrow) { color: var(--muted); }
.dialog-close { position: absolute; top: 10px; right: 13px; width: 36px; height: 36px; border: 0; background: transparent; font-size: 28px; }
.dialog-close:hover { color: var(--orange); }
form { display: grid; gap: 14px; margin-top: 22px; }
form label { display: grid; gap: 6px; font-size: 14px; font-weight: 700; }
input, select, textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid var(--line-strong); border-radius: 4px; background: var(--white); font-size: 15px; }
textarea { resize: vertical; }
form .button { justify-self: start; margin-top: 4px; }
.form-note, .form-status { margin: 0; font-size: 13px; line-height: 1.6; color: var(--muted); }
.form-status:empty { display: none; }
.form-status .text-link { font-size: 13px; }
.scroll-locked { overflow: hidden; }

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

/* Responsive */
@media (max-width: 1100px) {
  .shell, .site-header { width: calc(100% - 64px); }
  .site-header nav { gap: 24px; }
  .hero { gap: 40px; }
  .photo-frame { height: 470px; border-top-left-radius: 130px; }
  .coverage-card { left: -20px; }
  .service-card { padding: 24px; }
  .onsite-inner { gap: 44px; padding: 48px; }
  .why, .faq-section { gap: 52px; }
  .contact-inner { gap: 48px; padding: 50px; }
}

@media (max-width: 900px) {
  .site-header nav { gap: 18px; font-size: 14px; }
  .nav-cta { padding: 9px 14px; }
  .hero { grid-template-columns: 1fr; padding-block: 48px 64px; }
  .lede { max-width: 620px; }
  .photo-frame { height: 400px; }
  .coverage-card { left: 20px; bottom: 20px; }
  .section, .band { padding-block: 72px; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 16px; }
  .help-grid { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: 1fr; max-width: 620px; }
  .onsite-inner, .why, .faq-section, .contact-inner { grid-template-columns: 1fr; }
  .why { gap: 40px; }
  .approach { padding-top: 0; }
  .faq-section { gap: 28px; padding-block: 56px 72px; }
  .contact-details { justify-content: flex-start; }
}

@media (max-width: 650px) {
  html { scroll-padding-top: 16px; }
  .shell, .site-header { width: calc(100% - 40px); }
  .site-header { height: 76px; position: relative; z-index: 5; }
  .brand img { width: 96px; }
  .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; width: 44px; height: 44px; background: transparent; border: 1px solid var(--line-strong); border-radius: 6px; }
  .menu-toggle span { width: 18px; height: 1.5px; background: var(--ink); transition: transform 0.2s; }
  .menu-toggle[aria-expanded=true] span:first-child { transform: translateY(3.75px) rotate(45deg); }
  .menu-toggle[aria-expanded=true] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
  .site-header nav { display: none; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 16px 20px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 12px 25px color-mix(in srgb, var(--ink) 8%, transparent); font-size: 16px; }
  .site-header nav.is-open { display: flex; }
  .site-header nav > a { padding: 12px 4px; }
  .site-header nav > .nav-cta { justify-content: space-between; margin-top: 10px; padding: 13px 16px; }
  .hero { padding-block: 36px 56px; gap: 32px; }
  .hero h1 { font-size: clamp(34px, 9.4vw, 46px); }
  .lede { font-size: 17px; }
  .hero-facts { grid-template-columns: 1fr; gap: 12px; margin-top: 32px; }
  .hero-facts li { display: flex; justify-content: space-between; gap: 12px; }
  .hero-facts strong { display: inline; }
  .photo-frame { height: 320px; border-top-left-radius: 96px; }
  .coverage-card { position: relative; left: auto; bottom: auto; margin-top: -40px; margin-inline: 12px; min-width: 0; }
  .help-grid { grid-template-columns: 1fr; }
  .help-grid li { padding: 20px; }
  .onsite-inner { padding: 36px 22px; border-radius: 12px; }
  .principles { grid-template-columns: 1fr; gap: 26px; }
  .process-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-inner { padding: 36px 22px; border-radius: 12px; }
  .contact-details > a { font-size: 18px; }
  .footer { flex-wrap: wrap; gap: 14px; }
  .footer .brand { flex: 1; }
  .footer p { order: 3; width: 100%; }
  .footer small { order: 4; width: 100%; margin: 0; }
  .back-top { order: 2; }
  dialog { padding: 30px 22px; }
  dialog h2 { font-size: 28px; }
}