/* CSS Reset & Variables */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --m-ink: #111827;
  --m-slate: #4b5563;
  --m-surface: #ffffff;
  --m-bg-alt: #f3f4f6;
  --m-border: #e5e7eb;
  --m-focus: #374151;
  --font-main: 'Inter', sans-serif;
  --spacing-sm: 1rem;
  --spacing-md: 2.5rem;
  --spacing-lg: 5rem;
  --spacing-xl: 8rem;
}

body {
  font-family: var(--font-main);
  color: var(--m-ink);
  background-color: var(--m-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header */
.msg-global-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--m-border);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

.msg-header-scrolled {
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.msg-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.msg-brand-mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.msg-primary-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.msg-primary-nav a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--m-slate);
  transition: color 0.2s;
}

.msg-primary-nav a:hover {
  color: var(--m-ink);
}

.msg-ghost-link {
  opacity: 0.5;
  cursor: not-allowed;
}

.msg-action-trigger {
  padding: 0.5rem 1rem;
  background: var(--m-ink);
  color: var(--m-surface) !important;
  border-radius: 4px;
}

/* Hero Section */
.msg-hero-stage {
  max-width: 1000px;
  margin: var(--spacing-xl) auto var(--spacing-lg);
  padding: 0 var(--spacing-sm);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.msg-hero-headline {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.msg-hero-subtext {
  font-size: 1.25rem;
  color: var(--m-slate);
  max-width: 700px;
  margin: 0 auto 2.5rem;
}

.msg-btn-solid {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: var(--m-ink);
  color: var(--m-surface);
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.msg-btn-solid:hover {
  background-color: var(--m-focus);
}

.msg-hero-visual {
  margin-top: var(--spacing-lg);
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.msg-hero-visual img {
  height: 500px;
}

/* Dossier / About */
.msg-firm-dossier {
  max-width: 1200px;
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-sm);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.msg-dossier-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.msg-dossier-text p {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
  color: var(--m-slate);
}

.msg-inline-reference {
  text-decoration: underline;
  text-decoration-color: var(--m-border);
  text-underline-offset: 4px;
}

.msg-metrics-board {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--m-border);
}

.msg-metric-item {
  display: flex;
  flex-direction: column;
}

.msg-counter, .msg-percent {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.msg-metric-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--m-slate);
  margin-top: 0.5rem;
}

.msg-dossier-image img {
  height: 600px;
  border-radius: 4px;
}

/* Deep Solutions */
.msg-deep-solutions {
  background-color: var(--m-bg-alt);
  padding: var(--spacing-xl) var(--spacing-sm);
}

.msg-solutions-header {
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  text-align: center;
}

.msg-solutions-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.msg-solutions-header p {
  font-size: 1.15rem;
  color: var(--m-slate);
}

.msg-solutions-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.msg-solution-card {
  background: var(--m-surface);
  border: 1px solid var(--m-border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.msg-solution-card:hover {
  transform: translateY(-5px);
}

.msg-solution-card img {
  height: 240px;
}

.msg-card-body {
  padding: 2rem;
}

.msg-card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.msg-card-body p {
  color: var(--m-slate);
  font-size: 0.95rem;
}

/* Testimonials */
.msg-testimonials-strip {
  max-width: 1200px;
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-sm);
}

.msg-testimonials-strip h2 {
  font-size: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

.msg-testimonial-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.msg-quote-box {
  flex: 1 1 300px;
  padding: 2rem;
  border-left: 2px solid var(--m-ink);
  background: var(--m-surface);
}

.msg-quote-box p {
  font-style: italic;
  color: var(--m-slate);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.msg-quote-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.msg-quote-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.msg-quote-author strong {
  display: block;
  font-size: 0.95rem;
}

.msg-quote-author span {
  display: block;
  font-size: 0.8rem;
  color: var(--m-slate);
}

/* Value Drivers */
.msg-value-drivers {
  background-color: var(--m-ink);
  color: var(--m-surface);
  padding: var(--spacing-lg) var(--spacing-sm);
}

.msg-value-drivers h2 {
  text-align: center;
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
}

.msg-driver-layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.msg-driver h4 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--m-slate);
  padding-bottom: 0.5rem;
  display: inline-block;
}

.msg-driver p {
  color: #9ca3af;
  font-size: 0.95rem;
}

/* Contact Zone */
.msg-contact-zone {
  max-width: 1000px;
  margin: var(--spacing-xl) auto;
  padding: 0 var(--spacing-sm);
}

.msg-contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  background: var(--m-bg-alt);
  padding: 4rem;
  border-radius: 12px;
}

.msg-contact-info h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.msg-contact-info p {
  color: var(--m-slate);
  margin-bottom: 1.5rem;
}

.msg-inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.msg-input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.msg-input-group input,
.msg-input-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--m-border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--m-surface);
}

.msg-input-group input:focus,
.msg-input-group textarea:focus {
  outline: none;
  border-color: var(--m-ink);
}

/* Footer */
.msg-site-footer {
  border-top: 1px solid var(--m-border);
  padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-sm);
  max-width: 1200px;
  margin: 0 auto;
}

.msg-footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.msg-footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
}

.msg-footer-contact p, .msg-footer-links a {
  font-size: 0.9rem;
  color: var(--m-slate);
  margin-bottom: 0.5rem;
  display: block;
}

.msg-footer-links a:hover {
  color: var(--m-ink);
  text-decoration: underline;
}

.msg-footer-bottom {
  border-top: 1px solid var(--m-border);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}

.msg-footer-bottom p {
  font-size: 0.85rem;
  color: var(--m-slate);
}

.msg-tiny-disclaimer {
  font-size: 0.7rem !important;
  color: #9ca3af !important;
}

/* Responsive Tweaks */
@media (max-width: 900px) {
  .msg-firm-dossier, .msg-contact-wrapper {
    grid-template-columns: 1fr;
  }
  .msg-primary-nav {
    display: none; /* Simplified for mobile in this demo */
  }
  .msg-contact-wrapper {
    padding: 2rem;
  }
}