/* Koala Runs — Marketing site */

:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-muted: #f5f5f4;
  --color-border: #e5e5e5;
  --color-text: #171717;
  --color-text-secondary: #737373;
  --color-text-tertiary: #a3a3a3;
  --color-dark: #171717;
  --color-dark-elevated: #262626;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-green: #15803d;
  --color-green-bg: #dcfce7;
  --color-blue: #1d4ed8;
  --color-blue-bg: #dbeafe;
  --color-purple: #7c3aed;
  --color-purple-bg: #ede9fe;
  --color-amber-bg: #fef3c7;
  --color-red: #b91c1c;
  --color-red-bg: #fee2e2;

  --font-display: "Source Serif 4", Georgia, serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --header-height: 72px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.sr-only {
  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: -100%;
  left: 16px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--color-accent);
  color: var(--color-dark);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

/* ─── Header ─────────────────────────────────────────────── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(23, 23, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow 0.2s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-dark);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: #fafafa;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo-footer .logo-name {
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: #d4d4d4;
  transition: color 0.15s ease;
}

.site-nav a:hover {
  color: #fafafa;
}

.nav-cta {
  padding: 10px 18px;
  background: var(--color-accent);
  color: var(--color-dark) !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-dark) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  background: #fafafa;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── Hero ───────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: calc(var(--header-height) + 64px) 0 80px;
  background: var(--color-dark);
  color: #fafafa;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image:
    repeating-linear-gradient(0deg, #fff 0, #fff 1px, transparent 1px, transparent 44px),
    repeating-linear-gradient(90deg, #fff 0, #fff 1px, transparent 1px, transparent 44px);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.eyebrow-light {
  color: var(--color-accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 1.125rem;
  color: #a3a3a3;
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

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

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #fafafa;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-full {
  width: 100%;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-points li {
  position: relative;
  padding-left: 20px;
  font-size: 0.875rem;
  color: #d4d4d4;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* Hero panel preview */

.hero-panel {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  color: var(--color-text);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.panel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d4d4d4;
}

.panel-dot:first-child {
  background: #ef4444;
}

.panel-dot:nth-child(2) {
  background: #f59e0b;
}

.panel-dot:nth-child(3) {
  background: #22c55e;
}

.panel-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.panel-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.metric {
  padding: 16px;
  background: var(--color-surface);
}

.metric-label {
  display: block;
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1;
}

.metric-sub {
  display: block;
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.panel-list {
  padding: 8px;
}

.panel-row {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 2px 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
}

.panel-row:hover {
  background: var(--color-muted);
}

.status-badge {
  grid-row: span 2;
  align-self: center;
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 0.6875rem;
  font-weight: 600;
  white-space: nowrap;
}

.status-transit {
  color: #b45309;
  background: var(--color-amber-bg);
}

.status-delivered {
  color: var(--color-green);
  background: var(--color-green-bg);
}

.status-pending {
  color: #78716c;
  background: var(--color-muted);
}

.row-id {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}

.row-sub {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

/* ─── Stats bar ──────────────────────────────────────────── */

.stats-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

/* ─── Sections ───────────────────────────────────────────── */

.section {
  padding: 96px 0;
}

.section-dark {
  background: var(--color-dark);
  color: #fafafa;
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.section-lead-light {
  color: #a3a3a3;
}

/* ─── Features ───────────────────────────────────────────── */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #d4d4d4;
}

.feature-icon {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ─── Workflow ───────────────────────────────────────────── */

.workflow-steps {
  display: grid;
  gap: 0;
  margin-bottom: 48px;
  counter-reset: none;
}

.workflow-step {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.workflow-step:last-child {
  border-bottom: none;
}

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
}

.workflow-step h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.workflow-step p {
  font-size: 0.9375rem;
  color: #a3a3a3;
  line-height: 1.65;
  max-width: 560px;
}

.role-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.role-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
}

.role-badge {
  display: inline-block;
  padding: 3px 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-green);
  background: rgba(34, 197, 94, 0.15);
  border-radius: 3px;
}

.role-badge-operator {
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.15);
}

.role-badge-driver {
  color: #c4b5fd;
  background: rgba(139, 92, 246, 0.15);
}

.role-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.role-card li {
  position: relative;
  padding-left: 16px;
  font-size: 0.875rem;
  color: #d4d4d4;
  margin-bottom: 8px;
}

.role-card li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-text-tertiary);
}

/* ─── Platform ───────────────────────────────────────────── */

.platform-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.platform-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}

.platform-list li {
  padding-left: 20px;
  border-left: 3px solid var(--color-accent);
}

.platform-list strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.platform-list span {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.code-block,
.flow-diagram {
  background: var(--color-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.code-header,
.flow-header {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--color-dark-elevated);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.flow-steps {
  padding: 20px 20px 20px 36px;
  list-style: none;
}

.flow-steps li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 0.9375rem;
  color: #d4d4d4;
  border-left: 2px solid rgba(255, 255, 255, 0.12);
}

.flow-steps li:last-child {
  border-left-color: transparent;
}

.flow-dot {
  position: absolute;
  left: -7px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border-radius: 50%;
  border: 2px solid var(--color-dark);
}

.flow-dot-green {
  background: #22c55e;
}

.flow-dot-red {
  background: #ef4444;
}

.flow-branch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding-left: 0 !important;
  border-left: none !important;
  margin-top: 4px;
}

.flow-branch .flow-dot {
  position: static;
  transform: none;
}

.flow-or {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: #d4d4d4;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.trust-badges span {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
}

/* ─── CTA / Contact ──────────────────────────────────────── */

.cta-section {
  background: var(--color-muted);
  border-top: 1px solid var(--color-border);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.cta-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta-copy p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.contact-form {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.form-row {
  margin-bottom: 18px;
}

.form-row label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.form-row input.error,
.form-row textarea.error {
  border-color: var(--color-red);
}

.form-row textarea {
  resize: vertical;
  min-height: 100px;
}

.form-note {
  margin-top: 14px;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

.form-note.success {
  color: var(--color-green);
  font-weight: 500;
}

/* ─── Footer ─────────────────────────────────────────────── */

.site-footer {
  background: var(--color-dark);
  color: #a3a3a3;
  padding: 56px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr auto;
  gap: 48px;
  align-items: start;
}

.footer-tagline {
  margin-top: 12px;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 280px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-links h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  color: #fafafa;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.footer-links a {
  display: block;
  font-size: 0.875rem;
  color: #a3a3a3;
  margin-bottom: 10px;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: #fafafa;
}

.footer-copy {
  grid-column: 1 / -1;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8125rem;
}

/* ─── Reveal animation ───────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 960px) {
  .hero-inner,
  .platform-layout,
  .cta-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .feature-grid,
  .role-cards {
    grid-template-columns: 1fr 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-copy {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px;
    background: var(--color-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

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

  .site-nav a {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .site-nav a:hover {
    background: rgba(255, 255, 255, 0.06);
  }

  .nav-cta {
    margin-top: 8px;
    text-align: center;
  }

  .hero {
    padding-bottom: 64px;
  }

  .panel-metrics {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .role-cards {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }

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

  .footer-links {
    gap: 32px;
  }

  .section {
    padding: 64px 0;
  }
}