/* ============================================
   MUSTANG ONE CONSULTING — Global Styles
   Steel Blue / Slate Color Scheme
   ============================================ */

:root {
  --color-dark: #0d1117;
  --color-dark-alt: #161b22;
  --color-charcoal: #1c2128;
  --color-slate: #2d333b;
  --color-muted: #768390;
  --color-light: #adbac7;
  --color-white: #f0f3f6;
  --color-pure-white: #ffffff;
  --color-accent: #5A8DB8;
  --color-accent-light: #74A7CF;
  --color-accent-dark: #3E6D8E;
  --color-accent-warm: #d6e4ef;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-pure-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ---- NAVIGATION ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(90, 141, 184, 0.2);
  transition: var(--transition);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-pure-white);
  text-decoration: none;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
}

.nav-logo span {
  color: var(--color-accent-light);
}

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

.nav-links a {
  color: var(--color-light);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: var(--transition);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--color-pure-white);
  background: rgba(90, 141, 184, 0.15);
}

.nav-links a.active {
  color: var(--color-pure-white);
  background: var(--color-accent);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: var(--transition);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: var(--color-dark);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(90, 141, 184, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(90, 141, 184, 0.05) 0%, transparent 50%),
    linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%235A8DB8' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-text { }

.hero-photo {
  display: flex;
  justify-content: center;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 1s;
}

.hero-photo img {
  max-width: 380px;
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  border: 2px solid rgba(90, 141, 184, 0.25);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  color: var(--color-pure-white);
  font-weight: 600;
  line-height: 1.15;
  max-width: 800px;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent-light);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-light);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.8s;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  letter-spacing: 0.03em;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-pure-white);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(90, 141, 184, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-pure-white);
  border: 1.5px solid rgba(90, 141, 184, 0.5);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: rgba(90, 141, 184, 0.08);
}

/* ---- SECTIONS ---- */
.section {
  padding: 5rem 2rem;
}

.section-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section-alt {
  background: #f7f8fa;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-dark .section-heading { color: var(--color-pure-white); }

.section-sub {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

/* ---- CARDS / GRID ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-pure-white);
  border: 1px solid #e2e5ea;
  border-radius: 10px;
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.section-dark .card {
  background: var(--color-dark-alt);
  border-color: var(--color-slate);
}

.section-dark .card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(90, 141, 184, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.3rem;
  color: var(--color-accent);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.section-dark .card p { color: var(--color-light); }
.section-dark .card h3 { color: var(--color-pure-white); }

/* ---- CREDENTIALS BAR ---- */
.credentials {
  padding: 3rem 2rem;
  background: var(--color-dark-alt);
  border-top: 1px solid rgba(90, 141, 184, 0.15);
  border-bottom: 1px solid rgba(90, 141, 184, 0.15);
}

.credentials-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.credential-item {
  text-align: center;
  color: var(--color-light);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.7;
}

.credential-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-accent-light);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* ---- ABOUT SPLIT ---- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.split-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 1.25rem;
  line-height: 1.2;
}

.split-text p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.8;
}

.split-visual {
  background: var(--color-dark);
  border-radius: 12px;
  padding: 3rem;
  position: relative;
  overflow: hidden;
}

.split-visual::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark), transparent);
}

/* ---- TIMELINE ---- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
  padding-left: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-dark);
  margin-left: -4px;
}

.timeline-item h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-pure-white);
  margin-bottom: 0.25rem;
}

.timeline-item .timeline-role {
  color: var(--color-accent-light);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.timeline-item p {
  color: var(--color-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---- CONTACT FORM ---- */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid #d0d7de;
  border-radius: 8px;
  background: var(--color-pure-white);
  color: var(--color-dark);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(90, 141, 184, 0.2);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* ---- BLOG CARDS ---- */
.blog-card {
  background: var(--color-pure-white);
  border: 1px solid #e2e5ea;
  border-radius: 10px;
  padding: 2rem;
  transition: var(--transition);
}

.blog-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.blog-card .blog-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.blog-card h3 a {
  color: var(--color-dark);
  text-decoration: none;
  transition: var(--transition);
}

.blog-card h3 a:hover { color: var(--color-accent); }

.blog-card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--color-dark);
  color: var(--color-light);
  padding: 3rem 2rem 2rem;
  border-top: 1px solid rgba(90, 141, 184, 0.15);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-pure-white);
  margin-bottom: 0.5rem;
}

.footer-brand span { color: var(--color-accent-light); }

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-muted);
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--color-light);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

.footer-links a:hover { color: var(--color-accent-light); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-slate);
  font-size: 0.8rem;
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---- PAGE HEADER (interior pages) ---- */
.page-header {
  background: var(--color-dark);
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(90, 141, 184, 0.08) 0%, transparent 60%);
}

.page-header .container { position: relative; }

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  color: var(--color-pure-white);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.page-header p {
  color: var(--color-light);
  font-size: 1.1rem;
  max-width: 600px;
  line-height: 1.7;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(13, 17, 23, 0.98);
    padding: 1rem;
    border-bottom: 1px solid var(--color-slate);
  }
  .nav-toggle { display: block; }
  .split { grid-template-columns: 1fr; gap: 2rem; }
  .hero { min-height: auto; }
  .hero-content { grid-template-columns: 1fr; padding-top: 6rem; }
  .hero-photo { order: -1; }
  .hero-photo img { max-width: 260px; }
  .section { padding: 3.5rem 1.25rem; }
  .credentials-inner { gap: 1.5rem; }
  .footer-inner { flex-direction: column; }
}