/* --- Variables --- */
:root {
  --color-bg: #0f1216;
  --color-surface: #161b22;
  --color-surface-elevated: #1c2128;
  --color-border: #30363d;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-accent: #f59e0b;
  --color-accent-hover: #fbbf24;
  --color-accent-subtle: rgba(245, 158, 11, 0.12);
  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --space-unit: 0.25rem;
  --container-max: 72rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
}

/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 18, 22, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo:hover { opacity: 0.85; }
.logo-img {
  /* Show only the icon — clip the wordmark portion below */
  height: 44px;
  width: 44px;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.logo-wordmark {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.nav {
  display: flex;
  gap: 1.5rem;
}
.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}
.nav a:hover { color: var(--color-text); }

/* --- Hero --- */
.hero {
  position: relative;
  padding: clamp(4rem, 12vw, 8rem) 0;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-tagline {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  max-width: 20ch;
}
.hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-text-muted);
  max-width: 42ch;
  margin: 0 0 1.75rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--color-accent-subtle), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(48, 54, 61, 0.4), transparent);
  pointer-events: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.btn-primary {
  color: var(--color-bg);
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* --- Sections --- */
.section {
  padding: clamp(3rem, 8vw, 5rem) 0;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}
.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 50ch;
  margin: 0 0 2rem;
}

/* --- About / Values --- */
.about { background: var(--color-surface); }
.values {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.values li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.value-icon {
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}
.values strong { color: var(--color-text); }

/* --- Products --- */
.products { padding-bottom: clamp(3rem, 8vw, 5rem); }
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.product-card-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
}
@media (max-width: 768px) {
  .product-card-featured {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
  .product-visual { order: -1; }
}
.product-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}
.product-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}
.product-desc {
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}
.product-desc em { color: var(--color-text); font-style: italic; }
.product-features {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}
.product-features li { margin-bottom: 0.35rem; }
.product-platform {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}
.product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.chatlist-mock {
  width: 100%;
  max-width: 280px;
  padding: 1.25rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mock-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.mock-bubble {
  padding: 0.6rem 0.9rem;
  border-radius: 1rem;
  font-size: 0.9rem;
}
.mock-bubble-in {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  align-self: flex-start;
}
.mock-card {
  padding: 0.6rem 0.9rem;
  background: var(--color-accent-subtle);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
/* --- Product grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}
.product-card-standard {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.15s;
}
.product-card-standard:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.product-card-standard .product-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.product-features-compact {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex-grow: 1;
}
.product-features-compact li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-left: 1.1rem;
  position: relative;
}
.product-features-compact li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 700;
}
.btn-sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
}
.product-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  margin-top: auto;
}
@media (max-width: 768px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Contact --- */
.contact {
  background: var(--color-surface);
}
.contact-actions {
  margin-bottom: 1rem;
}
.contact-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* --- Hero card --- */
.hero-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  position: relative;
  z-index: 1;
}

/* --- CTA row --- */
.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

/* --- Secondary button --- */
.btn-secondary {
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

/* --- Section body text (inside two-col, no max-width cap) --- */
.section-body {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

/* --- Two-column layout (Why section) --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 2rem; }
}

/* --- Chat → Action preview --- */
.mock-preview {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.mock-preview p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0.75rem 0 0;
}

/* --- Pill badge --- */
.pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
}

/* --- Product two-col (How it works / Built for real use) --- */
.product-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1rem 0;
}
@media (max-width: 768px) {
  .product-two-col { grid-template-columns: 1fr; }
}
.product-sub {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.5rem;
}
.product-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}
.product-list li { margin-bottom: 0.35rem; }

/* --- Privacy section --- */
.privacy { background: var(--color-surface); }

/* --- Footer --- */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
}
.footer-inner {
  text-align: center;
}
.footer-logo {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-muted);
}
.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0.25rem 0 0.5rem;
}
.footer-copy {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}