@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("assets/fonts/IBMPlexSansVariable.woff2") format("woff2");
}

:root {
  --color-primary: #0f172a;
  --color-on-primary: #ffffff;
  --color-secondary: #334155;
  --color-accent: #0369a1;
  --color-accent-dark: #075985;
  --color-accent-tint: #e0f2fe;
  --color-background: #f8fafc;
  --color-foreground: #020617;
  --color-muted: #eef2f6;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-destructive: #dc2626;
  --color-destructive-tint: #fee2e2;
  --color-warning: #b45309;
  --color-warning-tint: #fef3c7;
  --color-success: #15803d;
  --color-success-tint: #dcfce7;

  --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(2, 6, 23, 0.05), 0 1px 1px rgba(2, 6, 23, 0.03);
  --shadow-md: 0 8px 20px -6px rgba(2, 6, 23, 0.1), 0 2px 6px -2px rgba(2, 6, 23, 0.05);
  --shadow-lg: 0 30px 60px -20px rgba(2, 6, 23, 0.25), 0 10px 20px -10px rgba(2, 6, 23, 0.1);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-base: 250ms;

  --max-width: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  font-size: 16px;
}

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

h1, h2, h3 {
  font-family: var(--font-sans);
  color: var(--color-primary);
  line-height: 1.15;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
}
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
p { margin: 0 0 12px; color: var(--color-secondary); }
p:last-child { margin-bottom: 0; }

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

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top var(--duration-base) var(--ease-out);
}
.skip-link:focus { top: 12px; }

.icon { width: 1.1em; height: 1.1em; flex-shrink: 0; }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1.is-visible { transition-delay: 90ms; }
.reveal-delay-2.is-visible { transition-delay: 180ms; }
.reveal-delay-3.is-visible { transition-delay: 270ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 0 rgba(2, 6, 23, 0.02), 0 8px 24px -16px rgba(2, 6, 23, 0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  color: var(--color-primary);
  margin-right: auto;
}
.brand-mark { border-radius: 6px; }
.brand-name { font-size: 1.05rem; letter-spacing: -0.01em; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a {
  color: var(--color-secondary);
  font-weight: 600;
  font-size: 0.92rem;
  position: relative;
  padding-bottom: 3px;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: right var(--duration-base) var(--ease-out);
}
.nav a:hover { color: var(--color-primary); }
.nav a:hover::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-primary);
  padding: 0;
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
  transition: background var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out), transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
}
.btn .icon { width: 1em; height: 1em; transition: transform var(--duration-base) var(--ease-out); }
.btn:active { transform: scale(0.97); }
.btn-lg { padding: 13px 26px; font-size: 0.95rem; }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 1px 2px rgba(3, 105, 161, 0.15);
}
.btn-primary:hover { background: var(--color-accent-dark); box-shadow: var(--shadow-md); }
.btn-primary:hover .icon { transform: translateX(3px); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-secondary); background: var(--color-white); }
.btn-invert { background: var(--color-white); color: var(--color-primary); }
.btn-invert:hover { background: var(--color-accent-tint); }
.btn-invert:hover .icon { transform: translateX(3px); }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--color-white); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.section-head { max-width: 620px; margin-bottom: 56px; }
.section-label {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.section-label-inverse { color: #7dd3fc; }
.section-head h2 { margin-bottom: 14px; }
.section-lead { font-size: 1.05rem; }

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* Icon badges */
.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-accent-tint);
  color: var(--color-accent);
  margin-bottom: 16px;
}
.icon-badge-danger { background: var(--color-destructive-tint); color: var(--color-destructive); }

/* Cards */
.problem-card, .feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.section-alt .problem-card,
.section-alt .feature-card { background: var(--color-background); }
.problem-card:hover, .feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: #cbd5e1;
}
.problem-card p, .feature-card p { font-size: 0.94rem; }

/* Hero */
.hero { position: relative; padding-top: 72px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
  padding-bottom: 80px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent-tint);
  color: var(--color-accent-dark);
  padding: 7px 14px 7px 10px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 24px;
}
.hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.5rem); }
.text-accent { color: var(--color-accent); }
.hero-sub {
  font-size: 1.15rem;
  color: var(--color-secondary);
  max-width: 480px;
  margin-top: 22px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }

.trust-strip {
  font-size: 0.82rem;
  color: #64748b;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
}
.trust-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.trust-tags span {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 9px;
  font-weight: 700;
  font-size: 0.76rem;
  color: var(--color-secondary);
}

/* Hero product card mockup */
.hero-visual { position: relative; }
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  position: relative;
  z-index: 2;
}
.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.product-card-title { font-weight: 700; color: var(--color-primary); font-size: 0.95rem; }
.product-card-count {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-tint);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.doc-row-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.doc-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 8px;
  border-radius: var(--radius-md);
  transition: background var(--duration-base) var(--ease-out);
}
.doc-row:hover { background: var(--color-background); }
.doc-row-muted { opacity: 0.6; }
.doc-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-white);
  background: hsl(var(--avatar-hue, 210) 55% 45%);
  flex-shrink: 0;
}
.doc-info { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.doc-supplier { font-weight: 700; font-size: 0.87rem; color: var(--color-primary); }
.doc-type { font-size: 0.78rem; color: #64748b; }
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  transition: background var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}
.status-badge .icon { width: 0.95em; height: 0.95em; }
.status-missing { background: var(--color-destructive-tint); color: var(--color-destructive); }
.status-requested { background: var(--color-warning-tint); color: var(--color-warning); }
.status-received { background: var(--color-success-tint); color: var(--color-success); }
.product-card-note {
  font-size: 0.72rem;
  color: #94a3b8;
  text-align: right;
  margin-top: 14px;
  margin-bottom: 0;
}

.floating-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 9px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  z-index: 3;
  animation: float 5s ease-in-out infinite;
}
.floating-chip .icon { color: var(--color-accent); }
.floating-chip-1 { top: -14px; right: 18px; animation-delay: 0s; }
.floating-chip-2 { bottom: -16px; left: -10px; animation-delay: 1.2s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
@media (prefers-reduced-motion: reduce) {
  .floating-chip { animation: none; }
}

/* Stat strip */
.stat-strip { border-top: 1px solid var(--color-border); background: var(--color-white); }
.stat-strip-inner { display: grid; grid-template-columns: repeat(3, 1fr); }
.stat { padding: 30px 30px 30px 0; border-right: 1px solid var(--color-border); }
.stat:last-child { border-right: none; }
.stat-num {
  display: block;
  font-weight: 700;
  font-size: 1.9rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 0.87rem; color: var(--color-secondary); }

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.steps::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: var(--color-border);
}
.step { position: relative; }
.step-icon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}
.step-num {
  display: block;
  font-weight: 700;
  font-size: 0.76rem;
  color: #94a3b8;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.step p { font-size: 0.92rem; }

/* Tags */
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 9px 18px;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: border-color var(--duration-base) var(--ease-out), background var(--duration-base) var(--ease-out);
}
.tag:hover { border-color: var(--color-accent); background: var(--color-accent-tint); }

/* CTA */
.cta-section {
  background: var(--color-primary);
  background-image: radial-gradient(circle at 15% 20%, rgba(3, 105, 161, 0.35), transparent 55%);
  padding: 96px 0;
  color: var(--color-white);
}
.cta-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
  gap: 48px;
}
.cta-copy h2 { color: var(--color-white); }
.cta-sub { color: #94a3b8; margin-top: 16px; }
.early-access-form { display: flex; flex-direction: column; gap: 14px; }
.input-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-full);
  padding: 4px 4px 4px 18px;
  transition: border-color var(--duration-base) var(--ease-out);
}
.input-group:focus-within { border-color: var(--color-white); }
.input-icon { color: #7dd3fc; }
.input-group input {
  flex: 1;
  min-width: 0;
  padding: 10px 4px;
  border: none;
  background: transparent;
  color: var(--color-white);
  font-family: inherit;
  font-size: 0.98rem;
}
.input-group input::placeholder { color: #64748b; }
.input-group input:focus { outline: none; }
.early-access-form .btn { align-self: flex-start; }
.form-note { font-size: 0.8rem; color: #64748b; margin-top: 4px; }

/* Footer */
.site-footer { padding: 48px 0; background: var(--color-white); border-top: 1px solid var(--color-border); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; max-width: 380px; }
.footer-brand .brand-name { font-weight: 700; color: var(--color-primary); }
.footer-brand p { flex-basis: 100%; color: #94a3b8; font-size: 0.86rem; margin-top: 4px; }
.footer-meta { text-align: right; font-size: 0.86rem; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.footer-email { display: inline-flex; align-items: center; gap: 6px; color: var(--color-accent); font-weight: 700; }
.footer-meta p { color: #94a3b8; margin: 0; }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps::before { display: none; }
  .cta-inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-header.open .nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 18px 24px 26px;
    border-bottom: 1px solid var(--color-border);
    gap: 16px;
  }
  .stat-strip-inner { grid-template-columns: 1fr; }
  .stat { border-right: none; border-top: 1px solid var(--color-border); padding: 20px 0; }
  .stat:first-child { border-top: none; }
  .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { text-align: left; align-items: flex-start; }
  .hero { padding-top: 56px; }
  .hero-grid { padding-bottom: 56px; gap: 40px; }
  .section { padding: 64px 0; }
  .cta-section { padding: 64px 0; }
  .floating-chip { display: none; }
}