/* ==========================================================================
   FourHills Investigations, Inc. — static site stylesheet
   Palette drawn from the logo: bright blue, navy, silver/gray
   ========================================================================== */

:root {
  --blue: #1e7fd0;
  --blue-dark: #15619f;
  --navy: #17356b;
  --navy-deep: #0f2347;
  --silver: #9aa3ad;
  --ink: #2b3440;
  --ink-soft: #55606c;
  --bg: #ffffff;
  --bg-soft: #f4f7fa;
  --line: #dfe5ec;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 35, 71, 0.10);
  --shadow-sm: 0 4px 14px rgba(15, 35, 71, 0.08);
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Header / navigation
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.brand img {
  height: 64px;
  width: auto;
  display: block;
}

.main-nav ul {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.main-nav a {
  display: block;
  padding: 0.6rem 1.1rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--navy);
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}

.main-nav a:hover { background: var(--bg-soft); color: var(--blue); }

.main-nav a.active {
  background: var(--navy);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.45rem 0.65rem;
  font-size: 1.25rem;
  color: var(--navy);
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(30, 127, 208, 0.18), transparent 60%),
    radial-gradient(900px 420px at 10% 110%, rgba(23, 53, 107, 0.12), transparent 60%),
    linear-gradient(180deg, #f8fbfe 0%, #eef3f9 100%);
  padding: 5rem 0 4.5rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  font-weight: 400;
  color: var(--ink);
  max-width: 60ch;
  margin: 0 auto 1rem;
  line-height: 1.4;
}

.hero h1 strong { color: var(--navy); font-weight: 700; }
.hero h1 .accent { color: var(--blue); }

.hero .sub {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 55ch;
  margin: 0 auto;
}

.hero .cta-row {
  margin-top: 2.2rem;
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.7rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--blue-dark); color: #fff; transform: translateY(-2px); }

.btn-outline {
  border: 2px solid var(--navy);
  color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: #fff; transform: translateY(-2px); }

/* Page hero (interior pages) */
.page-hero {
  background: linear-gradient(120deg, var(--navy-deep) 0%, var(--navy) 55%, var(--blue-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 3.5rem 0;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
}

.page-hero .sub {
  margin-top: 0.6rem;
  color: #c8d8ee;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

/* --------------------------------------------------------------------------
   Sections & cards
   -------------------------------------------------------------------------- */

.section { padding: 4rem 0; }
.section.alt { background: var(--bg-soft); }

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-title h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  color: var(--navy);
}

.section-title p {
  color: var(--ink-soft);
  margin-top: 0.5rem;
  max-width: 62ch;
  margin-left: auto;
  margin-right: auto;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.7rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }

.card .icon {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue) 0%, var(--navy) 100%);
  margin-bottom: 1.2rem;
}

.card .icon svg { width: 30px; height: 30px; stroke: #fff; }

.card h3 { color: var(--navy); font-size: 1.2rem; margin-bottom: 0.5rem; }
.card p { color: var(--ink-soft); font-size: 0.97rem; }

/* Feature band */
.band {
  background: linear-gradient(120deg, var(--navy-deep) 0%, var(--navy) 60%, var(--blue-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 3.2rem 0;
}

.band p {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  max-width: 65ch;
  margin: 0 auto;
}

.band .btn { margin-top: 1.6rem; }
.band .btn-light {
  background: #fff;
  color: var(--navy);
}
.band .btn-light:hover { background: #e8f1fb; transform: translateY(-2px); }

/* Prose (terms / privacy / long text) */
.prose { max-width: 800px; margin: 0 auto; }
.prose h2 { color: var(--navy); font-family: var(--font-serif); font-weight: 600; font-size: 1.35rem; margin: 2.2rem 0 0.8rem; }
.prose p, .prose li { color: var(--ink-soft); margin-bottom: 1rem; }
.prose ol, .prose ul { padding-left: 1.4rem; margin-bottom: 1rem; }
.prose .allcaps { font-size: 0.95rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-info .item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.6rem;
}

.contact-info .item .icon {
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue) 0%, var(--navy) 100%);
}

.contact-info .item .icon svg { width: 24px; height: 24px; stroke: #fff; }
.contact-info .item h3 { color: var(--navy); font-size: 1.05rem; }
.contact-info .item p { color: var(--ink-soft); font-size: 0.97rem; }
.contact-info .item a { font-weight: 600; }

.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy);
  margin-bottom: 0.3rem;
}

.contact-form .field { margin-bottom: 1.1rem; }

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  color: var(--ink);
  background: #fbfcfe;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(30, 127, 208, 0.15);
}

.contact-form button {
  width: 100%;
  border: none;
  cursor: pointer;
}

.form-note {
  font-size: 0.85rem;
  color: var(--silver);
  margin-top: 0.8rem;
  text-align: center;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--navy-deep);
  color: #b9c6d8;
  padding: 2.8rem 0 2rem;
  font-size: 0.92rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding-bottom: 1.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-nav a {
  color: #dbe6f3;
  margin-right: 1.1rem;
  font-weight: 600;
}
.footer-nav a:hover { color: #fff; }

.footer-contact { text-align: right; }
.footer-contact a { color: #fff; font-weight: 700; }

.footer-bottom {
  padding-top: 1.4rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Scroll-reveal animation
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal.delay-1 { transition-delay: 0.12s; }
.reveal.delay-2 { transition-delay: 0.24s; }
.reveal.delay-3 { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 820px) {
  .nav-toggle { display: block; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .main-nav.open { display: block; }

  .main-nav ul { flex-direction: column; padding: 0.5rem 4%; }
  .main-nav a { border-radius: 8px; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-contact { text-align: left; }
  .brand img { height: 52px; }
}