/* =========================================================================
   C&S Industries, LLC -- design system
   ========================================================================= */

:root {
  /* Brand -- pulled from the chrome/electric-blue C&S mark */
  --color-navy-900: #0a0d12;   /* near-black ink -- header, footer, nav */
  --color-navy-800: #141a23;   /* charcoal panel -- cards/blocks on dark */
  --color-navy-700: #1e2732;   /* lighter charcoal -- hover states */
  --color-navy-600: #37465a;   /* steel -- dark-section dividers/borders */
  --color-accent: #3b82f6;     /* electric blue -- buttons, CTAs */
  --color-accent-dark: #1d4ed8; /* deep blue -- text-on-light, hover */
  --color-glow: rgba(59, 130, 246, 0.45);

  /* Neutrals */
  --color-white: #ffffff;
  --color-gray-50: #f7f8fa;
  --color-gray-100: #edf0f3;
  --color-gray-200: #dbe1e7;
  --color-gray-400: #97a3ae;
  --color-gray-600: #57646f;
  --color-gray-800: #262e36;
  --color-error: #c81010;
  --color-success: #1c7c3f;

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Oswald', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --container-width: 1180px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(10, 13, 18, 0.08);
  --shadow-md: 0 8px 24px rgba(10, 13, 18, 0.12);
  --shadow-lg: 0 20px 48px rgba(10, 13, 18, 0.20);
  --header-height: 84px;
  --transition: 180ms ease;
}

/* ---- Reset -------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-gray-800);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.15; font-weight: 600; font-family: var(--font-display); letter-spacing: 0.005em; text-transform: uppercase; }
h3 { text-transform: none; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
button { font: inherit; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 0; top: -48px; z-index: 200;
  background: var(--color-accent); color: var(--color-navy-900);
  padding: 12px 20px; font-weight: 600; transition: top var(--transition);
}
.skip-link:focus { top: 0; }

/* ---- Layout helpers ------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section--tight { padding: 56px 0; }
.section--muted { background: var(--color-gray-50); }
.section--navy { background: var(--color-navy-800); color: var(--color-white); }
.section-head { max-width: 720px; margin: 0 0 48px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-accent-dark); margin-bottom: 12px;
}
.section--navy .eyebrow { color: var(--color-accent); }
h2 { font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem); }
h3 { font-size: 1.25rem; }
.lede { font-size: 1.15rem; color: var(--color-gray-600); }
.section--navy .lede { color: var(--color-gray-200); }

/* ---- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem;
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.03em;
  border: 2px solid transparent; cursor: pointer; transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--accent { background: var(--color-accent); color: var(--color-navy-900); box-shadow: 0 0 0 0 var(--color-glow); }
.btn--accent:hover { background: var(--color-accent-dark); color: var(--color-white); box-shadow: 0 6px 24px var(--color-glow); }
.btn--outline-light { border-color: rgba(255,255,255,0.6); color: var(--color-white); }
.btn--outline-light:hover { background: rgba(255,255,255,0.12); border-color: var(--color-white); }
.btn--outline-dark { border-color: var(--color-navy-800); color: var(--color-navy-800); }
.btn--outline-dark:hover { background: var(--color-navy-800); color: var(--color-white); }
.btn--block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ---- Header / nav ---------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  min-height: var(--header-height);
  display: flex; align-items: center;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.is-scrolled,
.site-header.is-open {
  background: var(--color-navy-900);
  box-shadow: var(--shadow-md);
}
body:not(.has-hero) .site-header { background: var(--color-navy-900); }

.site-header__inner {
  width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: inline-flex; align-items: center; }
.brand__logo { height: 42px; width: auto; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; background: transparent; border: none; cursor: pointer; border-radius: var(--radius-sm);
}
.nav-toggle__bar { width: 24px; height: 2px; background: var(--color-white); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.primary-nav > ul { display: flex; align-items: center; gap: 4px; }
.primary-nav a {
  display: inline-flex; align-items: center; padding: 10px 16px; font-weight: 600; font-size: 0.95rem;
  color: var(--color-white); border-radius: var(--radius-sm); transition: background var(--transition), color var(--transition);
}
.primary-nav a:hover,
.primary-nav a[aria-current="page"] { background: rgba(255,255,255,0.1); }
.primary-nav a.nav-cta { background: var(--color-accent); color: var(--color-navy-900); margin-left: 8px; }
.primary-nav a.nav-cta:hover { background: var(--color-accent-dark); }

.has-dropdown { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 250px;
  background: var(--color-white); border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { color: var(--color-navy-800); padding: 10px 14px; border-radius: var(--radius-sm); }
.dropdown a:hover, .dropdown a[aria-current="page"] { background: rgba(59,130,246,0.08); color: var(--color-accent-dark); }

/* ---- Hero ------------------------------------------------------------------ */
.hero {
  position: relative; color: var(--color-white); overflow: hidden;
  min-height: 640px; display: flex; align-items: center;
  margin-top: calc(var(--header-height) * -1);
  padding-top: var(--header-height);
  padding-bottom: 48px;
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
}
.hero__bg { position: absolute; inset: 0; z-index: -2; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__scrim {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(10,13,18,0.80) 0%, rgba(10,13,18,0.66) 45%, rgba(10,13,18,0.94) 100%),
    radial-gradient(ellipse 900px 500px at 15% 25%, rgba(59,130,246,0.22), transparent 60%);
}
.hero__content { max-width: 760px; padding: 100px 0 60px; }
.hero__content h1 { font-size: clamp(2.1rem, 1.5rem + 2.6vw, 3.4rem); margin-bottom: 20px; text-shadow: 0 2px 24px rgba(59,130,246,0.35); }
.hero__content p { font-size: 1.2rem; color: var(--color-gray-100); max-width: 620px; }
.hero__actions { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

/* ---- Cards ------------------------------------------------------------------ */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (min-width: 961px) {
  .card-grid .service-card:last-child:nth-child(3n+1) { grid-column: 2; }
}
.service-card {
  background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius-lg);
  padding: 36px 30px; display: flex; flex-direction: column; height: 100%;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md), 0 0 0 1px rgba(59,130,246,0.25); border-color: transparent; }
.service-card:hover .service-card__icon { box-shadow: 0 8px 22px var(--color-glow); }
.service-card__icon {
  width: 56px; height: 56px;
  background: linear-gradient(155deg, var(--color-navy-700) 0%, var(--color-navy-900) 100%);
  clip-path: polygon(15% 0%, 100% 0%, 100% 85%, 85% 100%, 0% 100%, 0% 15%);
  display: flex; align-items: center; justify-content: center; margin-bottom: 22px; flex-shrink: 0;
  transition: box-shadow var(--transition);
}
.service-card__icon svg { width: 26px; height: 26px; stroke: var(--color-accent); }
.service-card h3 { margin-bottom: 10px; text-transform: none; }
.service-card p { color: var(--color-gray-600); flex-grow: 1; }
.service-card__link { font-weight: 700; color: var(--color-accent-dark); display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; }
.service-card__link svg { width: 16px; height: 16px; transition: transform var(--transition); }
.service-card__link:hover svg { transform: translateX(3px); }

/* ---- Generic content blocks -------------------------------------------------- */
.two-col { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: start; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.stat { text-align: center; }
.stat__num { font-size: 2.4rem; font-weight: 800; color: var(--color-accent-dark); }
.section--navy .stat__num { color: var(--color-accent); }
.stat__label { color: var(--color-gray-600); font-weight: 600; }
.section--navy .stat__label { color: var(--color-gray-200); }

.checklist { display: grid; gap: 14px; margin: 24px 0; }
.checklist li { display: flex; align-items: flex-start; gap: 12px; }
.checklist svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--color-accent-dark); margin-top: 2px; }
.section--navy .checklist svg { color: var(--color-accent); }

.pill-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.pill { background: var(--color-gray-100); color: var(--color-navy-800); font-weight: 600; font-size: 0.9rem; padding: 8px 16px; border-radius: 999px; }

.breadcrumb { padding: 20px 0 0; font-size: 0.9rem; color: var(--color-gray-600); }
.breadcrumb a { color: var(--color-navy-700); font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }

.page-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(155deg, var(--color-navy-800) 0%, var(--color-navy-900) 70%);
  color: var(--color-white); padding: 56px 0 80px; margin-top: calc(var(--header-height) * -1); padding-top: calc(var(--header-height) + 40px);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}
.page-hero::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 700px 400px at 90% 0%, rgba(59,130,246,0.25), transparent 60%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin-bottom: 12px; text-shadow: 0 2px 24px rgba(59,130,246,0.3); }
.page-hero p { color: var(--color-gray-200); max-width: 680px; font-size: 1.1rem; margin: 0; }

.portfolio-item {
  display: grid; grid-template-columns: 380px 1fr; gap: 40px; align-items: center; margin-bottom: 56px;
}
.portfolio-item:nth-child(even) { grid-template-columns: 1fr 380px; }
.portfolio-item:nth-child(even) .portfolio-item__media { order: 2; }
.portfolio-item__media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.portfolio-item h3 { margin-bottom: 8px; }
.portfolio-item .eyebrow { margin-bottom: 4px; }

.person {
  display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start;
}
.person img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); width: 100%; }
.person h3 { margin-bottom: 2px; }
.person .role { color: var(--color-accent-dark); font-weight: 700; margin-bottom: 16px; }

/* ---- App showcase -------------------------------------------------------------- */
.app-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.app-card {
  background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius-lg);
  padding: 32px; transition: transform var(--transition), box-shadow var(--transition);
}
.app-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.app-card__head { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.app-card__icon { width: 72px; height: 72px; border-radius: 18px; box-shadow: var(--shadow-sm); flex-shrink: 0; }
.app-card__name { margin-bottom: 2px; }
.app-card__tagline { color: var(--color-accent-dark); font-weight: 700; font-size: 0.92rem; }
.app-card__summary { color: var(--color-gray-600); }
.app-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 8px; }
.app-card__price { font-weight: 700; color: var(--color-navy-800); }
.app-store-badge {
  display: inline-flex; align-items: center; gap: 8px; background: var(--color-navy-900); color: var(--color-white);
  padding: 10px 18px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
}
.app-store-badge:hover { background: var(--color-navy-700); transform: translateY(-1px); }
.app-store-badge svg { width: 18px; height: 18px; }

/* ---- Forms -------------------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-field--full { grid-column: 1 / -1; }
.form-field label { font-weight: 600; font-size: 0.9rem; }
.form-field input,
.form-field textarea {
  font: inherit; padding: 13px 16px; border: 1.5px solid var(--color-gray-200); border-radius: var(--radius-sm);
  background: var(--color-white); transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-glow);
}
.form-field textarea { resize: vertical; min-height: 140px; }
.form-field.has-error input,
.form-field.has-error textarea { border-color: var(--color-error); }
.field-error { color: var(--color-error); font-size: 0.85rem; }
.form-hint { color: var(--color-gray-600); font-size: 0.85rem; margin-top: -6px; }

/* honeypot -- hidden from real users, left visible to bots */
.hp-field { position: absolute; left: -9999px; top: -9999px; }

.alert { padding: 16px 20px; border-radius: var(--radius-md); margin-bottom: 28px; font-weight: 600; }
.alert--success { background: #e8f6ee; color: var(--color-success); border: 1px solid #b9e6ca; }
.alert--error { background: #fdecec; color: var(--color-error); border: 1px solid #f5bcbc; }

.contact-info-card {
  background: var(--color-navy-800); color: var(--color-white); border-radius: var(--radius-lg); padding: 36px;
}
.contact-info-card h3 { margin-bottom: 4px; }
.contact-info-card .contact-row { display: flex; gap: 14px; margin-top: 24px; }
.contact-info-card .contact-row svg { width: 22px; height: 22px; color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.contact-info-card a { text-decoration: underline; text-underline-offset: 3px; }

/* ---- Footer -------------------------------------------------------------------- */
.site-footer { background: var(--color-navy-900); color: var(--color-gray-200); }
.footer-cta { background: var(--color-accent); color: var(--color-navy-900); }
.footer-cta__inner {
  max-width: var(--container-width); margin: 0 auto; padding: 28px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-cta__inner p { margin: 0; font-size: 1.15rem; font-weight: 700; }
.footer-cta__inner a[href^="tel"] { text-decoration: underline; }
.footer-main__inner { max-width: var(--container-width); margin: 0 auto; padding: 60px 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.footer-map iframe { border-radius: var(--radius-lg); filter: grayscale(0.3) contrast(1.05); }
.footer-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-logo { height: 34px; margin-bottom: 16px; }
.footer-tagline { color: var(--color-gray-400); font-size: 0.92rem; }
.footer-col h3 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-gray-400); margin-bottom: 12px; }
.footer-col p { margin-bottom: 8px; font-size: 0.95rem; }
.footer-col a:hover { color: var(--color-accent); }
.footer-links { display: grid; gap: 10px; }
.footer-links a { font-size: 0.95rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 24px; text-align: center; font-size: 0.85rem; color: var(--color-gray-400); }

/* ---- Responsive ----------------------------------------------------------------- */
@media (max-width: 960px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .footer-main__inner { grid-template-columns: 1fr; }
  .footer-columns { grid-template-columns: repeat(3, 1fr); }
  .portfolio-item,
  .portfolio-item:nth-child(even) { grid-template-columns: 1fr; }
  .portfolio-item__media { order: -1 !important; }
  .person { grid-template-columns: 160px 1fr; }
}

@media (max-width: 720px) {
  :root { --header-height: 72px; }
  .nav-toggle { display: inline-flex; }
  .brand__logo { height: 34px; }
  .primary-nav {
    position: fixed; inset: 72px 0 0 0; background: var(--color-navy-900);
    padding: 20px 24px; transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    overflow-y: auto;
  }
  .primary-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .primary-nav > ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .primary-nav a { padding: 14px 16px; }
  .primary-nav a.nav-cta { margin-left: 0; text-align: center; }
  .has-dropdown .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    background: rgba(255,255,255,0.04); display: none; margin: 4px 0 8px;
  }
  .has-dropdown.is-open .dropdown { display: block; }
  .dropdown a { color: var(--color-white); }
  .dropdown a:hover { background: rgba(255,255,255,0.1); }

  .card-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .footer-columns { grid-template-columns: 1fr 1fr; }
  .footer-cta__inner { flex-direction: column; align-items: flex-start; }
  .form-grid { grid-template-columns: 1fr; }
  .person { grid-template-columns: 1fr; }
  .person img { max-width: 200px; }
  .section { padding: 56px 0; }
}

@media (max-width: 480px) {
  .footer-columns { grid-template-columns: 1fr; }
}