/* ============================================================
   BoilerMate — Public Website Stylesheet
   Prototype 001
   ============================================================ */

:root {
  --color-bg: #111212;
  --color-bg-secondary: #181a1a;
  --color-surface: #1f2122;
  --color-surface-hover: #252829;
  --color-text-primary: #e8e8e6;
  --color-text-secondary: #9a9a95;
  --color-text-muted: #606060;
  --color-border: #2a2c2c;
  --color-border-light: #333636;
  --color-accent: #c8773a;
  --color-accent-hover: #d98a4a;
  --color-accent-dim: rgba(200, 119, 58, 0.15);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.375rem;
  --font-size-xl: 1.75rem;
  --font-size-2xl: 2.25rem;
  --font-size-3xl: 3rem;
  --max-width: 1200px;
  --header-height: 64px;
  --radius: 4px;
  --radius-md: 8px;
  --radius-screenshot: 16px;
  --transition: 200ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background-color: var(--color-bg); color: var(--color-text-primary); font-family: var(--font-sans); font-size: var(--font-size-base); line-height: 1.6; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23282a2a' stroke-width='0.5' d='M0 0h24v24H0z'/%3E%3C/svg%3E"); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.container { width: 100%; max-width: var(--max-width); margin-inline: auto; padding-inline: var(--space-md); }

.site-header { position: fixed; top: 0; inset-inline: 0; z-index: 100; height: var(--header-height); background-color: rgba(17, 18, 18, 0.92); border-bottom: 1px solid var(--color-border); backdrop-filter: blur(8px); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.header-logo { display: flex; align-items: center; gap: var(--space-xs); text-decoration: none; }
.header-logo__image { height: 36px; width: auto; }
.header-logo__wordmark { font-size: var(--font-size-md); font-weight: 700; letter-spacing: 0.03em; color: var(--color-text-primary); }
.header-logo__wordmark span { color: var(--color-accent); }
.site-nav__list { display: flex; align-items: center; gap: var(--space-lg); }
.site-nav__link { font-size: var(--font-size-sm); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-text-secondary); transition: color var(--transition); }
.site-nav__link:hover { color: var(--color-text-primary); }
.site-nav__link--cta { padding: 0.5rem 1rem; background-color: var(--color-accent); color: var(--color-bg); border-radius: var(--radius); font-weight: 600; transition: background-color var(--transition); }
.site-nav__link--cta:hover { background-color: var(--color-accent-hover); color: var(--color-bg); }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 36px; height: 36px; padding: 4px; border-radius: var(--radius); color: var(--color-text-primary); }
.nav-toggle__bar { display: block; width: 100%; height: 2px; background-color: currentColor; border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.site-header.nav-open .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { padding-top: calc(var(--header-height) + var(--space-2xl)); padding-bottom: var(--space-2xl); text-align: center; }
.hero__eyebrow { display: inline-block; font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-sm); }
.hero__headline { font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-3xl)); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; color: var(--color-text-primary); margin-bottom: var(--space-md); }
.hero__subtext { font-size: var(--font-size-md); color: var(--color-text-secondary); max-width: 540px; margin-inline: auto; margin-bottom: var(--space-xl); }
.hero__showcase { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); max-width: 1100px; margin-inline: auto; align-items: start; }
.hero__showcase-image { width: 100%; height: auto; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); background-color: var(--color-surface); }
.placeholder-label { color: var(--color-text-muted); font-size: var(--font-size-sm); letter-spacing: 0.06em; text-transform: uppercase; user-select: none; }

.audience { padding-block: var(--space-xl); background-color: var(--color-bg-secondary); }
.audience__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.audience__card { background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-xl) var(--space-lg); display: flex; flex-direction: column; gap: var(--space-sm); transition: background-color var(--transition), border-color var(--transition); }
.audience__card:hover { border-color: var(--color-border-light); background-color: var(--color-surface-hover); }
.audience__card-tag { font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.audience__card-heading { font-size: var(--font-size-xl); font-weight: 700; letter-spacing: -0.01em; color: var(--color-text-primary); }
.audience__card-body { font-size: var(--font-size-base); color: var(--color-text-secondary); line-height: 1.65; }
.audience__card--link { cursor: pointer; }
.audience__card--link:hover { transform: translateY(-2px); }
.audience__card-link-label { margin-top: auto; padding-top: var(--space-sm); font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-accent); }

/* Audience overview pages */
.audience-page { padding-top: calc(var(--header-height) + var(--space-2xl)); padding-bottom: var(--space-2xl); }
.audience-detail__header { max-width: 720px; margin: 0 auto var(--space-xl); text-align: center; }
.audience-detail__eyebrow { display: block; margin-bottom: var(--space-sm); font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); }
.audience-detail__title { font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-3xl)); line-height: 1.15; letter-spacing: -0.02em; margin-bottom: var(--space-md); }
.audience-detail__lead { max-width: 620px; margin-inline: auto; font-size: var(--font-size-md); color: var(--color-text-secondary); }
.audience-detail__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); }
.audience-detail__card { padding: var(--space-lg); background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.audience-detail__card h2 { margin-bottom: var(--space-xs); font-size: var(--font-size-lg); line-height: 1.25; }
.audience-detail__card p { color: var(--color-text-secondary); }
.audience-detail__cta { margin-top: var(--space-xl); padding: var(--space-xl); text-align: center; background-color: var(--color-bg-secondary); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.audience-detail__cta h2 { margin-bottom: var(--space-xs); font-size: var(--font-size-xl); }
.audience-detail__cta p { margin-bottom: var(--space-md); color: var(--color-text-secondary); }
.btn:disabled { cursor: not-allowed; opacity: 0.7; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.65rem 1.4rem; font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.04em; border-radius: var(--radius); transition: transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition); }
.btn--primary { background-color: var(--color-accent); color: var(--color-bg); }
.btn--primary:hover { background-color: var(--color-accent-hover); }
.btn--outline { background-color: transparent; color: var(--color-text-primary); border: 1px solid var(--color-border-light); }
.btn--outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

.section-intro { max-width: 640px; margin-inline: auto; text-align: center; margin-bottom: var(--space-xl); }
.section-label { display: block; font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-xs); }
.section-heading { font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-2xl)); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; color: var(--color-text-primary); margin-bottom: var(--space-xs); }
.section-subtext { font-size: var(--font-size-md); color: var(--color-text-secondary); }

.intro { padding-block: var(--space-2xl); }
.intro__inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: center; }
.intro__content { display: flex; flex-direction: column; gap: var(--space-sm); }
.intro__content .section-heading { text-align: left; margin-bottom: 0; }
.intro__body { font-size: var(--font-size-md); color: var(--color-text-secondary); line-height: 1.7; }
.intro-device { display: flex; justify-content: center; margin: 0; }
.intro-device__frame { width: min(100%, 360px); border: 1px solid var(--color-border-light); border-radius: 24px; padding: 10px; background-color: #0f1112; }
.intro-device__image { width: 100%; height: auto; display: block; border-radius: 16px; }
.screenshot-placeholder { aspect-ratio: 4 / 3; background-color: var(--color-surface); border: 1px solid var(--color-border-light); border-radius: var(--radius-md); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-sm); min-height: 280px; text-align: center; padding: var(--space-lg); }
.screenshot-placeholder__icon { width: 40px; height: 40px; opacity: 0.25; }

.features { padding-block: var(--space-2xl); background-color: var(--color-bg-secondary); }
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: center; margin-bottom: var(--space-2xl); }
.feature-row:last-child { margin-bottom: 0; }
.feature-row--reverse .feature-row__visual { order: 2; }
.feature-row--reverse .feature-row__content { order: 1; }
.feature-row__visual { min-width: 0; }
.feature-row__content { display: flex; flex-direction: column; gap: var(--space-sm); }
.feature-row__name { font-size: var(--font-size-sm); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.feature-row__heading { font-size: var(--font-size-xl); font-weight: 700; letter-spacing: -0.01em; color: var(--color-text-primary); line-height: 1.25; }
.feature-row__body { font-size: var(--font-size-base); color: var(--color-text-secondary); line-height: 1.7; }

/* Manuals — two real product screenshots, side by side. */
.manuals-showcase { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(0.75rem, 2vw, 1.25rem); align-items: start; width: 100%; min-width: 0; }
.manuals-showcase__image { display: block; width: 100%; height: auto; max-width: 100%; border: 1px solid var(--color-border-light); border-radius: var(--radius-screenshot); background-color: #0f1112; }

/* Equipment history photos — two real product screenshots, side by side. */
.equipment-history-showcase { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(0.75rem, 2vw, 1.25rem); align-items: start; width: 100%; min-width: 0; }
.equipment-history-showcase__image { display: block; width: 100%; height: auto; max-width: 100%; border: 1px solid var(--color-border-light); border-radius: var(--radius-screenshot); background-color: #0f1112; }

.cta { padding-block: var(--space-2xl); text-align: center; border-top: 1px solid var(--color-border); }
.cta__heading { font-size: clamp(var(--font-size-xl), 4vw, var(--font-size-2xl)); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: var(--space-md); }
.cta__bullets { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-md); margin-bottom: var(--space-lg); }
.cta__bullet { font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-secondary); }
.cta__bullet::before { content: '— '; color: var(--color-accent); }
.cta__badge { display: inline-block; padding: 0.4rem 1.1rem; border: 1px solid var(--color-border-light); border-radius: 100px; font-size: var(--font-size-sm); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent); }
.site-footer { padding-block: var(--space-xl); background-color: var(--color-bg-secondary); border-top: 1px solid var(--color-border); }
.site-footer__inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-xl); }
.footer-brand { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-brand__logo { height: 32px; width: auto; }
.footer-brand__description { color: var(--color-text-secondary); font-size: var(--font-size-sm); line-height: 1.6; }
.footer-nav__heading, .footer-contact__heading { font-size: var(--font-size-sm); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-primary); margin-bottom: var(--space-sm); }
.footer-nav__list { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-nav__link { font-size: var(--font-size-sm); color: var(--color-text-secondary); transition: color var(--transition); }
.footer-nav__link:hover { color: var(--color-text-primary); }
.footer-contact__text { font-size: var(--font-size-sm); color: var(--color-text-secondary); line-height: 1.7; }
.footer-contact__pending { color: var(--color-text-muted); }
.site-footer__bottom { margin-top: var(--space-xl); padding-top: var(--space-md); border-top: 1px solid var(--color-border); }
.footer-copyright { font-size: var(--font-size-sm); color: var(--color-text-muted); text-align: center; }

@media (max-width: 768px) {
  .site-nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background-color: var(--color-bg); border-bottom: 1px solid var(--color-border); padding: var(--space-md); }
  .site-header.nav-open .site-nav { display: block; }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__link { display: block; padding: 0.75rem 0; }
  .site-nav__link--cta { text-align: center; margin-top: 0.5rem; }
  .nav-toggle { display: flex; }
  .intro__inner, .audience__grid, .audience-detail__grid, .feature-row, .site-footer__inner { grid-template-columns: 1fr; }

  /* Keep every feature consistent on mobile: copy first, screenshots second. */
  .feature-row__content,
  .feature-row--reverse .feature-row__content { order: 1; }
  .feature-row__visual,
  .feature-row--reverse .feature-row__visual { order: 2; width: 100%; }
  .manuals-showcase, .equipment-history-showcase { gap: 0.5rem; }
  .feature-row { gap: var(--space-lg); }
  .site-footer__inner { gap: var(--space-lg); }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--space-sm); }
  .hero__showcase { grid-template-columns: 1fr; }
  .manuals-showcase, .equipment-history-showcase { grid-template-columns: 1fr 1fr; }
}