/* ============================================
   ClearPing, Inc. — Corporate site styles
   ============================================ */

:root {
  --color-bg: #0c0f14;
  --color-bg-elevated: #13171f;
  --color-bg-card: #181c26;
  --color-border: #252b38;
  --color-text: #e4e8ef;
  --color-text-muted: #8b93a5;
  --color-accent: #00c4b4;
  --color-accent-dim: rgba(0, 196, 180, 0.15);
  --color-accent-hover: #00e6d4;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 15, 20, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-text);
}

.logo-mark {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent-dim);
  color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: none;
}

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

/* ----- Hero ----- */
.hero {
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--color-accent-dim), transparent 60%),
    linear-gradient(180deg, transparent 0%, var(--color-bg) 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  text-align: center;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 var(--space-md);
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-lg);
  color: var(--color-text);
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.hero-meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  opacity: 0.8;
}

/* ----- Sections ----- */
.section {
  padding: var(--space-3xl) 0;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 0 var(--space-xl);
  line-height: 1.65;
}

/* ----- Platform ----- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.platform-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.platform-card:hover {
  border-color: rgba(0, 196, 180, 0.3);
  box-shadow: 0 0 0 1px rgba(0, 196, 180, 0.1);
}

.platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border-radius: var(--radius);
}

.platform-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.platform-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ----- Products ----- */
.products {
  background: var(--color-bg-elevated);
}

.product-list {
  list-style: none;
  padding: 0;
  margin: var(--space-xl) 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition);
}

.product-card:hover {
  border-color: rgba(0, 196, 180, 0.25);
}

.product-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.product-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.product-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 0.2rem 0.5rem;
  background: var(--color-accent-dim);
  color: var(--color-accent);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.55;
}

/* ----- Differentiators ----- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.diff-item {
  text-align: center;
  padding: var(--space-lg);
}

.diff-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.diff-label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .diff-grid {
    grid-template-columns: 1fr;
  }
}

/* ----- Customers ----- */
.customers-highlights {
  margin-top: var(--space-xl);
}

.customers-logos-caption {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 560px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
}

.stat {
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.stat-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ----- Leadership ----- */
.leadership {
  background: var(--color-bg-elevated);
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.leader-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}

.leader-avatar {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  border-radius: 50%;
}

.leader-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.leader-role {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.leader-bio {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.55;
}

/* ----- CTA ----- */
.cta {
  text-align: center;
}

.cta .section-lead {
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-xl);
}

/* ----- Footer ----- */
.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer-brand .logo-mark {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-accent);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: var(--space-xs) 0 0;
}

.footer-meta {
  text-align: right;
}

.footer-meta p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta {
    text-align: left;
  }
}