/* DMX Core Marketing Site — Global Styles */

/* ========== CSS Variables ========== */
:root {
  --blue-primary: #29B1E2;
  --blue-mid: #0096CD;
  --blue-dark: #007FAE;
  --blue-glow: rgba(41, 177, 226, 0.15);
  --blue-glow-strong: rgba(41, 177, 226, 0.3);

  --charcoal-light: #373636;
  --charcoal: #2F2E2E;
  --charcoal-dark: #212020;
  --charcoal-darker: #1a1919;
  --charcoal-darkest: #141313;

  --text-primary: #f0f0f0;
  --text-secondary: #a8a8a8;
  --text-muted: #777;
  --text-on-blue: #fff;

  --border-color: #3a3939;
  --border-color-light: #4a4949;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --max-width: 1200px;
  --nav-height: 64px;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--charcoal-darkest);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--blue-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: #5cc8ef; }

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

/* ========== Typography ========== */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); margin-bottom: 0.75rem; }
h4 { font-size: 1.1rem; }

p { color: var(--text-secondary); margin-bottom: 1rem; }

.text-blue { color: var(--blue-primary); }
.text-muted { color: var(--text-muted); }
.text-white { color: var(--text-primary); }

/* ========== Layout ========== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--charcoal-dark);
}

.section-darker {
  background: var(--charcoal-darkest);
}

/* ========== Navigation ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(20, 19, 19, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.nav-logo svg,
.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links .nav-cta {
  color: var(--blue-primary);
  font-weight: 600;
}

.nav-links .nav-cta:hover {
  color: #5cc8ef;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s, opacity 0.3s;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--blue-primary);
  color: var(--text-on-blue);
}

.btn-primary:hover {
  background: #1fa1d1;
  color: var(--text-on-blue);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(41, 177, 226, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--blue-primary);
  border: 1.5px solid var(--blue-primary);
}

.btn-outline:hover {
  background: var(--blue-glow);
  color: #5cc8ef;
  border-color: #5cc8ef;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 12px 20px;
}

.btn-ghost:hover {
  color: var(--text-primary);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* External link icon */
.btn .icon-external {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

/* ========== Hero Section ========== */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 700px;
}

.hero-label {
  display: inline-block;
  padding: 6px 14px;
  background: var(--blue-glow);
  color: var(--blue-primary);
  border: 1px solid rgba(41, 177, 226, 0.25);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero h1 {
  margin-bottom: 20px;
}

.hero h1 .highlight {
  color: var(--blue-primary);
}

.hero .hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.7;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

/* ========== Screenshot Placeholder ========== */
.screenshot-placeholder {
  background: var(--charcoal-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.screenshot-placeholder::after {
  content: attr(data-label);
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 20px;
}

.screenshot-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== Feature Cards ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--charcoal-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: var(--blue-primary);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--blue-primary);
  font-size: 1.4rem;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ========== Stats Row ========== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
  padding: 48px 0;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--blue-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ========== Protocol / Integration Tags ========== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--charcoal);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.tag-blue {
  background: var(--blue-glow);
  border-color: rgba(41, 177, 226, 0.25);
  color: var(--blue-primary);
}

/* ========== Product Cards ========== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.product-card {
  background: var(--charcoal-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.2s;
}

.product-card:hover {
  border-color: var(--blue-primary);
  transform: translateY(-3px);
}

.product-card-image {
  aspect-ratio: 16/9;
  background: var(--charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card-image::after {
  content: attr(data-label);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card-body {
  padding: 28px;
}

.product-card-body h3 {
  margin-bottom: 8px;
}

.product-card-price {
  color: var(--blue-primary);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.product-card-body p {
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* ========== Spec Tables ========== */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.spec-table th {
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.spec-table td {
  color: var(--text-secondary);
}

.spec-table td:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

.spec-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* ========== Comparison Table ========== */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.compare-table th,
.compare-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.compare-table th {
  background: var(--charcoal);
  color: var(--text-primary);
  font-weight: 600;
  position: sticky;
  top: var(--nav-height);
  z-index: 10;
}

.compare-table th:first-child,
.compare-table td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  background: var(--charcoal-dark);
  z-index: 5;
  min-width: 160px;
}

.compare-table td { color: var(--text-secondary); }

.compare-table .check { color: var(--blue-primary); font-weight: 700; }
.compare-table .cross { color: var(--text-muted); }
.compare-table .highlight-col { background: rgba(41, 177, 226, 0.06); }

table.compare-table tr.price-row td {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 700;
  padding-top: 16px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
}

/* ========== Use Case Cards ========== */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.usecase-card {
  background: var(--charcoal-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  transition: border-color 0.2s;
}

.usecase-card:hover {
  border-color: var(--blue-primary);
}

.usecase-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.usecase-card h3 { margin-bottom: 12px; }

.usecase-card p {
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.usecase-features {
  list-style: none;
  padding: 0;
}

.usecase-features li {
  padding: 4px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.usecase-features li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--blue-primary);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
}

/* ========== Section Headers ========== */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-header p {
  font-size: 1.05rem;
}

/* ========== Footer ========== */
.footer {
  background: var(--charcoal-darkest);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer h4 {
  color: var(--text-primary);
  margin-bottom: 16px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========== Mobile Nav ========== */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(20, 19, 19, 0.98);
  backdrop-filter: blur(12px);
  z-index: 999;
  padding: 32px 24px;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 1.1rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu a:hover { color: var(--text-primary); }

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}

@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .hero { padding-top: calc(var(--nav-height) + 48px); padding-bottom: 48px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .usecase-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== Lightbox ========== */
.zoomable {
  cursor: zoom-in;
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-overlay img {
  max-width: 95vw;
  max-height: 95vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ========== Utility ========== */
.overflow-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Page top offset for anchor links */
[id] {
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

/* ========== Page header (inner pages) ========== */
.page-header {
  padding-top: calc(var(--nav-height) + 56px);
  padding-bottom: 48px;
  background: var(--charcoal-dark);
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.1rem;
  max-width: 640px;
}

/* Two-column layout for product pages */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 900px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

/* ========== Deployment Options Grid ========== */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.deploy-card {
  background: var(--charcoal);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: border-color 0.2s;
}

.deploy-card:hover {
  border-color: var(--blue-primary);
}

.deploy-card .deploy-price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-primary);
  margin-bottom: 4px;
}

.deploy-card .deploy-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.deploy-card p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* ========== Contact Form ========== */
.contact-form {
  max-width: 600px;
}

.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--charcoal);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
}

.contact-form .form-group {
  margin-bottom: 20px;
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .form-status {
  margin-top: 16px;
  font-size: 0.9rem;
}