/* ==========================================================================
   iyon — design tokens
   ========================================================================== */

:root {
  --ink: #21262B;
  --ink-soft: #2C333A;
  --concrete: #EDEAE3;
  --concrete-dim: #E2DEd3;
  --paper: #F7F5F0;
  --steel: #5B6670;
  --steel-light: #8A939B;
  --amber: #F5A623;
  --amber-dark: #C9860F;
  --teal: #1E8074;
  --teal-dark: #145952;
  --white: #FFFFFF;
  --line: rgba(33, 38, 43, 0.12);

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--concrete);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--ink);
}

p { margin: 0; }

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

img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-dark);
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

/* ==========================================================================
   Nav
   ========================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(237, 234, 227, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
}

.brand .mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--amber);
  transform: translateY(-1px);
}

.brand small {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.08em;
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  font-weight: 500;
}

.nav-links a { color: var(--steel); transition: color 0.15s ease; }
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  background: var(--ink);
  color: var(--paper) !important;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--ink);
}
.nav-cta:hover { background: transparent; color: var(--ink) !important; }

.nav-toggle { display: none; }

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .nav-links a, .nav-links .nav-cta { width: 100%; padding: 16px 28px; border: none; }
  .nav-toggle:checked ~ .nav-links { max-height: 320px; }
  .nav-toggle-label {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
  }
  .nav-toggle-label span { width: 22px; height: 2px; background: var(--ink); display: block; }
}

@media (min-width: 761px) {
  .nav-toggle-label { display: none; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--amber); color: var(--ink); }
.btn-primary:hover { background: var(--amber-dark); }

.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--ink-soft); }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }

.btn-outline-light { background: transparent; color: var(--paper); border-color: rgba(247,245,240,0.5); }
.btn-outline-light:hover { background: var(--paper); color: var(--ink); }

/* ==========================================================================
   Hero (dark, warehouse-floor grid + route diagram)
   ========================================================================== */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding: 96px 0 84px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(247,245,240,0.05) 0, rgba(247,245,240,0.05) 1px, transparent 1px, transparent 64px),
    repeating-linear-gradient(90deg, rgba(247,245,240,0.05) 0, rgba(247,245,240,0.05) 1px, transparent 1px, transparent 64px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

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

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 18px;
  display: block;
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 64px);
  line-height: 1.03;
  color: var(--paper);
}

.hero h1 em {
  font-style: normal;
  color: var(--teal);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-decoration-thickness: 3px;
  text-underline-offset: 6px;
}

.hero-sub {
  margin-top: 22px;
  font-size: 18px;
  color: var(--steel-light);
  max-width: 46ch;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.hero-diagram {
  background: var(--ink-soft);
  border: 1px solid rgba(247,245,240,0.12);
  padding: 20px;
}

.hero-diagram .diagram-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel-light);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.hero-diagram .diagram-label .dot { color: var(--teal); }

/* route path animation */
.route-line {
  stroke-dasharray: 6 6;
  animation: dash 18s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -400; } }

.pulse-node {
  animation: pulse 2.4s ease-in-out infinite;
  transform-origin: center;
}
@keyframes pulse { 0%, 100% { r: 5; } 50% { r: 7; } }

/* ==========================================================================
   Sections (light)
   ========================================================================== */

section { padding: 88px 0; }

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  margin-top: 12px;
  line-height: 1.1;
}

.section-head p {
  margin-top: 16px;
  font-size: 17px;
  color: var(--steel);
}

.section-alt { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* Problem / rack rows */
.rack-rows {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 760px) { .rack-rows { grid-template-columns: 1fr; } }

.rack-row {
  background: var(--concrete);
  padding: 30px 26px;
}

.rack-row .bin-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 0.06em;
}

.rack-row h3 {
  font-size: 22px;
  margin-top: 10px;
}

.rack-row p {
  margin-top: 10px;
  color: var(--steel);
  font-size: 15px;
}

/* Products */
.product-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--line);
}
@media (max-width: 820px) { .product-card { grid-template-columns: 1fr; } }

.product-card .p-visual {
  background: var(--ink);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.product-card .p-body {
  padding: 40px;
}

.product-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--teal);
  color: var(--paper);
  padding: 4px 10px;
  margin-bottom: 16px;
}

.product-status.soon { background: var(--steel-light); }

.product-card h3 { font-size: 30px; }

.product-card .p-tagline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal-dark);
  margin-top: 6px;
}

.product-card p.desc {
  margin-top: 16px;
  color: var(--steel);
  font-size: 16px;
  max-width: 52ch;
}

.product-card .p-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-weight: 600;
  border-bottom: 2px solid var(--amber);
  padding-bottom: 2px;
}

/* Founder */
.founder {
  display: grid;
  grid-template-columns: 0.4fr 0.6fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 820px) { .founder { grid-template-columns: 1fr; } }

.founder-badge {
  width: 100%;
  aspect-ratio: 1;
  background: var(--ink);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
}

.founder-badge .num {
  font-family: var(--font-display);
  font-size: 56px;
  color: var(--amber);
  line-height: 1;
}
.founder-badge .num-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-light);
  margin-top: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.founder-badge .div { height: 1px; background: rgba(247,245,240,0.15); margin: 20px 0; }

.founder h2 { font-size: clamp(26px, 3.2vw, 34px); }
.founder p { margin-top: 16px; color: var(--steel); font-size: 16.5px; }
.founder p + p { margin-top: 14px; }

/* Footer */
footer {
  background: var(--ink);
  color: var(--steel-light);
  padding: 56px 0 32px;
}
footer .footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(247,245,240,0.12);
  flex-wrap: wrap;
}
footer .brand { color: var(--paper); }
footer .footer-tag { margin-top: 10px; max-width: 34ch; font-size: 14px; }
footer .footer-links { display: flex; gap: 48px; flex-wrap: wrap; }
footer .footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--paper);
  margin-bottom: 14px;
  font-weight: 500;
}
footer .footer-col a { display: block; font-size: 14px; margin-bottom: 10px; transition: color 0.15s ease; }
footer .footer-col a:hover { color: var(--paper); }
footer .footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   Product page specific
   ========================================================================== */

.tag-strip {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.tag-strip span {
  font-family: var(--font-mono);
  font-size: 12px;
  border: 1px solid rgba(247,245,240,0.25);
  color: var(--steel-light);
  padding: 5px 12px;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } }

.compare-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 28px;
}
.compare-card.after { border-color: var(--teal); }
.compare-card .compare-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
}
.compare-card.after .compare-label { color: var(--teal-dark); }
.compare-card svg { margin: 18px 0; }
.compare-card .compare-stat {
  font-family: var(--font-display);
  font-size: 40px;
  color: var(--ink);
}
.compare-card.after .compare-stat { color: var(--teal-dark); }
.compare-card .compare-note { font-size: 13px; color: var(--steel); margin-top: 6px; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

.step {
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  position: relative;
}
.step .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber-dark);
  letter-spacing: 0.08em;
}
.step h3 { font-size: 21px; margin-top: 12px; }
.step p { margin-top: 10px; color: var(--steel); font-size: 15px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 700px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-item { background: var(--concrete); padding: 26px 28px; }
.feature-item .bin-tag { font-family: var(--font-mono); font-size: 11px; color: var(--steel); }
.feature-item h4 { font-size: 18px; margin-top: 8px; }
.feature-item p { margin-top: 8px; color: var(--steel); font-size: 14.5px; }

.pricing-box {
  background: var(--ink);
  color: var(--paper);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px;
}
@media (max-width: 700px) { .pricing-box { grid-template-columns: 1fr; text-align: left; } }
.pricing-box .price { font-family: var(--font-display); font-size: 56px; color: var(--amber); }
.pricing-box .price span { font-family: var(--font-mono); font-size: 14px; color: var(--steel-light); display: block; margin-top: 4px; }
.pricing-box ul { list-style: none; padding: 0; margin: 14px 0 0; color: var(--steel-light); font-size: 14.5px; }
.pricing-box li { padding: 4px 0; }
.pricing-box li::before { content: "— "; color: var(--teal); }

.signup {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 40px;
  max-width: 560px;
}
.signup .field {
  display: flex;
  gap: 0;
  margin-top: 18px;
  border: 1px solid var(--ink);
}
.signup input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
}
.signup input:focus { outline: none; background: rgba(30,128,116,0.06); }
.signup button {
  border: none;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  padding: 0 22px;
  cursor: pointer;
}
.signup button:hover { background: var(--teal-dark); }
.signup .note { margin-top: 12px; font-size: 13px; color: var(--steel); }
.form-success { display: none; margin-top: 18px; font-family: var(--font-mono); font-size: 13px; color: var(--teal-dark); }

/* ==========================================================================
   Email gate modal (routes.html — required before opening the app)
   ========================================================================== */
.email-gate-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(33, 38, 43, 0.72);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.email-gate-overlay.open { display: flex; }
.email-gate-modal {
  background: var(--paper);
  border: 1px solid var(--line);
  max-width: 440px;
  width: 100%;
  padding: 40px;
  position: relative;
}
.email-gate-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 22px;
  line-height: 1;
  color: var(--steel);
  cursor: pointer;
  padding: 6px;
}
.email-gate-close:hover { color: var(--ink); }
.email-gate-modal h3 { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--ink); margin: 10px 0 8px; }
.email-gate-modal .note { font-size: 14px; color: var(--steel); }
.email-gate-modal .field {
  display: flex;
  gap: 0;
  margin-top: 18px;
  border: 1px solid var(--ink);
}
.email-gate-modal input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
}
.email-gate-modal input:focus { outline: none; background: rgba(30,128,116,0.06); }
.email-gate-modal button {
  border: none;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  padding: 0 20px;
  cursor: pointer;
  white-space: nowrap;
}
.email-gate-modal button:hover { background: var(--teal-dark); }
.email-gate-modal .error { display: none; margin-top: 10px; font-size: 13px; color: var(--amber-dark); font-family: var(--font-mono); }
@media (max-width: 480px) {
  .email-gate-modal { padding: 30px 24px; }
  .email-gate-modal .field { flex-direction: column; border: none; }
  .email-gate-modal input { border: 1px solid var(--ink); padding: 12px 14px; }
  .email-gate-modal button { padding: 12px; margin-top: 8px; }
}