/* ============================================================
   Red Stone Consulting — stylesheet
   Brand: vivid red (#ED1C24) on white, single-color red wordmark.
   ============================================================ */

:root {
  --red: #ED1C24;
  --red-dark: #C8161D;
  --red-light: #ff6168;
  --ink: #141414;
  --body: #4a4a4a;
  --muted: #8a8a8a;
  --line: #e6e6e6;
  --bg: #ffffff;
  --bg-alt: #f6f6f6;
  --max: 1120px;
  --radius: 12px;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.08);
  --grad: linear-gradient(135deg, #ED1C24 0%, #C8161D 100%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: "Montserrat", "Inter", sans-serif;
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Brand wordmark (single red tone) ---------- */
.brand-mark {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--red);
  font-size: 1.4rem;
}
.brand-mark-alt { color: var(--red); }

/* ============ HEADER / NAV ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand { display: inline-flex; align-items: center; }
.brand:hover { text-decoration: none; }

.nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav-menu a:hover { color: var(--red); text-decoration: none; }
.nav-menu .nav-cta {
  background: var(--grad);
  color: #fff;
  padding: 9px 22px;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(237, 28, 36, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-menu .nav-cta:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 9px 20px rgba(237, 28, 36, 0.34);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* ============ HERO ============ */
.hero {
  padding: 100px 0 92px;
  background:
    radial-gradient(1000px 520px at 88% -15%, rgba(237, 28, 36, 0.13), transparent 58%),
    radial-gradient(680px 420px at -8% 8%, rgba(237, 28, 36, 0.06), transparent 52%),
    var(--bg);
}
.hero-inner { max-width: 840px; }

/* Pill badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(237, 28, 36, 0.08);
  color: var(--red);
  border: 1px solid rgba(237, 28, 36, 0.18);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 22px;
}
.badge::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(237, 28, 36, 0.18);
}

.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--red);
  margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 22px;
  letter-spacing: -0.01em;
}
.hero-sub {
  font-size: 1.13rem;
  color: var(--body);
  max-width: 660px;
  margin: 0 0 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 24px rgba(237, 28, 36, 0.28);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(237, 28, 36, 0.38);
}
.btn-ghost { border: 1.5px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--red); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18); }
.btn-light:hover { color: var(--red-dark); transform: translateY(-2px); }

/* ============ HIGHLIGHTS STRIP ============ */
.strip { border-bottom: 1px solid var(--line); background: var(--bg); }
.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 30px 0;
}
.highlight { display: flex; gap: 14px; align-items: flex-start; }
.highlight .h-ic {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}
.highlight h4 { margin: 0 0 3px; font-size: 1rem; }
.highlight p { margin: 0; font-size: 0.9rem; }

/* ============ SECTIONS ============ */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 18px;
}
.section-title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 56px; height: 4px;
  border-radius: 4px;
  background: var(--grad);
}
.section-lead {
  max-width: 680px;
  font-size: 1.06rem;
  margin: 0 0 40px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-lead p { margin: 0 0 18px; font-size: 1.04rem; }
.about-aside {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
}
.about-aside h3 { font-size: 1.15rem; margin-bottom: 16px; }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 13px;
  font-weight: 500;
  color: var(--ink);
}
.check-list li:last-child { margin-bottom: 0; }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 16px; height: 9px;
  border-left: 2.5px solid var(--red);
  border-bottom: 2.5px solid var(--red);
  transform: rotate(-45deg);
}

/* Mission / Vision */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
.mv-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 30px;
  border-top: 4px solid var(--red);
}
.mv-ic { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.mv-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.mv-card p { margin: 0; }

/* ---------- Services cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card:hover::before { transform: scaleX(1); }
.card-icon {
  font-size: 1.7rem;
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(237, 28, 36, 0.14), rgba(237, 28, 36, 0.04));
  border-radius: 14px;
  margin-bottom: 18px;
}
.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card > p { margin: 0; font-size: 0.98rem; }
.card ul { list-style: none; padding: 0; margin: 16px 0 0; }
.card ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 0.92rem;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--red);
}
.card-accent {
  background: linear-gradient(150deg, #1a1a1a 0%, #111 100%);
  border-color: transparent;
}
.card-accent h3, .card-accent > p { color: #fff; }
.card-accent > p { color: #c9c9c9; }
.card-accent .card-icon { background: rgba(237, 28, 36, 0.22); }
.card-link {
  display: inline-block;
  margin-top: 16px;
  font-weight: 700;
  color: var(--red-light);
}

/* ---------- Industries ---------- */
.industries-grid { display: flex; flex-wrap: wrap; gap: 14px; }
.industry {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 22px;
  font-weight: 600;
  color: var(--ink);
  font-size: 0.95rem;
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.industry:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(237, 28, 36, 0.12);
}

/* ---------- Approach steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.step { padding-top: 4px; }
.step-num {
  width: 50px; height: 50px;
  border-radius: 14px;
  background: var(--grad);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-family: "Montserrat", sans-serif;
  font-size: 1.25rem;
  margin-bottom: 16px;
  box-shadow: 0 10px 22px rgba(237, 28, 36, 0.28);
}
.step h3 { font-size: 1.15rem; margin-bottom: 6px; }
.step p { margin: 0; font-size: 0.95rem; }

/* ---------- Values ---------- */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.value {
  border-top: 3px solid var(--red);
  padding-top: 18px;
  transition: transform 0.2s ease;
}
.value:hover { transform: translateY(-4px); }
.value h3 { font-size: 1.12rem; margin-bottom: 8px; }
.value p { margin: 0; font-size: 0.96rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--grad);
  color: #fff;
  padding: 70px 0;
  text-align: center;
}
.cta-band h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  margin-bottom: 14px;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.92);
  max-width: 640px;
  margin: 0 auto 30px;
  font-size: 1.1rem;
}

/* ---------- Contact ---------- */
.contact-intro { max-width: 620px; margin: 0 0 36px; font-size: 1.06rem; }
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.contact-card h3 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 6px;
}
.contact-card h3 + p { margin: 0 0 20px; }
.contact-card p:last-child { margin-bottom: 0; }
.contact-card a { font-weight: 600; word-break: break-word; }
.muted { color: var(--muted); font-size: 0.85rem; font-weight: 400; }

/* ============ FOOTER ============ */
.site-footer {
  background: #111;
  color: #cfcfcf;
  padding-top: 56px;
  border-top: 4px solid var(--red);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 36px;
  padding-bottom: 44px;
}
.site-footer .brand-mark { color: var(--red); }
.footer-col p { margin: 12px 0 0; color: #9a9a9a; font-size: 0.93rem; }
.footer-col h4 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col ul a { color: #bdbdbd; font-size: 0.93rem; }
.footer-col ul a:hover { color: #fff; }
.footer-col p a { color: #fff; }
.footer-bottom {
  border-top: 1px solid #2a2a2a;
  padding: 20px 0;
  font-size: 0.88rem;
  color: #8a8a8a;
}
.footer-bottom p { margin: 0; }

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
  .nav-menu { gap: 18px; }
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .mv-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .strip-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 18px;
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 12px 0; width: 100%; }
  .nav-menu .nav-cta { display: inline-block; width: auto; margin-top: 8px; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 56px 0; }
  .cards { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .values { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .strip-grid { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; gap: 28px; }
}

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