/* ===========================
   Pipeline Labs — Design Tokens
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Color — neutral charcoal/off-white system, matched to the Pipeline Labs badge mark */
  --color-ink: #221F1D;
  --color-ink-soft: #55524D;
  --color-ink-faint: #8A8681;
  --color-bg: #FAF9F5;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F1EFE9;
  --color-border: #E3E0D8;
  --color-accent: #E1631E;
  --color-accent-hover: #C8531A;
  --color-accent-soft: #FBE6D6;
  --color-success: #2F8F5B;
  --color-on-ink: #FAF9F5;

  /* Typography */
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Type scale */
  --text-xs: 0.8rem;
  --text-sm: 0.9rem;
  --text-base: 1rem;
  --text-lg: 1.15rem;
  --text-xl: 1.4rem;
  --text-2xl: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  --text-3xl: clamp(2.25rem, 1.7rem + 2.5vw, 3.5rem);
  --text-4xl: clamp(2.75rem, 2rem + 3.5vw, 4.75rem);

  /* Spacing (8pt rhythm) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --container-max: 1200px;
  --shadow-card: 0 1px 2px rgba(34, 31, 29, 0.04), 0 8px 24px rgba(34, 31, 29, 0.06);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===========================
   Reset
   =========================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body, h1, h2, h3, h4, p, figure { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

a, button, input, textarea, select { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

/* ===========================
   Layout helpers
   =========================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-4); }
}

section { padding-block: var(--space-7); }
.section-tight { padding-block: var(--space-6); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { font-size: var(--text-3xl); }
.section-head p {
  margin-top: var(--space-2);
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 48px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 200ms var(--ease-out), background 200ms var(--ease-out), border-color 200ms var(--ease-out), color 200ms var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-ink);
  color: var(--color-on-ink);
}
.btn-primary:hover { background: #3a3631; }

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

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

.btn-icon svg { width: 18px; height: 18px; }

/* ===========================
   Header / Nav
   =========================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 249, 245, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }

.footer-brand .brand-mark { width: 48px; height: 48px; }

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
}
.nav-links a { color: var(--color-ink-soft); transition: color 200ms var(--ease-out); }
.nav-links a:hover, .nav-links a.active { color: var(--color-ink); }

.nav-actions { display: flex; align-items: center; gap: var(--space-2); }
.nav-actions .btn-ghost { display: none; }

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--color-border);
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: var(--space-2) 0;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-actions .btn-ghost { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-menu { display: none !important; }
}

/* ===========================
   Hero
   =========================== */
.hero {
  padding-top: var(--space-7);
  padding-bottom: var(--space-6);
}
.hero-inner {
  display: grid;
  gap: var(--space-5);
  text-align: center;
  justify-items: center;
}
.hero h1 {
  font-size: var(--text-4xl);
  max-width: 16ch;
}
.hero .lede {
  max-width: 52ch;
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: center;
  margin-top: var(--space-3);
  color: var(--color-ink-faint);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 0.4rem; }
.hero-trust svg { width: 14px; height: 14px; }

/* Waveform visual */
.hero-visual {
  width: 100%;
  max-width: 720px;
  margin-top: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
}
.call-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  text-align: left;
}
.call-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-success);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.call-status::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse-dot 1.6s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
.call-meta { font-size: var(--text-xs); color: var(--color-ink-faint); }

.waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 64px;
}
.waveform span {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  animation: wave 1.2s ease-in-out infinite;
}
@keyframes wave {
  0%, 100% { height: 12px; opacity: 0.5; }
  50% { height: 48px; opacity: 1; }
}

.call-transcript {
  margin-top: var(--space-3);
  text-align: left;
  min-height: 3.2em;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
}
.call-transcript .cursor-blink {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--color-ink-soft);
  vertical-align: -0.15em;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.call-trial {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: stretch;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  text-align: left;
}
.call-trial-text { display: flex; flex-direction: column; gap: 0.2rem; }
.call-trial-text strong { font-size: var(--text-sm); }
.call-trial-text span { font-size: var(--text-xs); color: var(--color-ink-faint); }
.call-trial .btn { width: 100%; }

@media (min-width: 560px) {
  .call-trial { flex-direction: row; align-items: center; justify-content: space-between; }
  .call-trial .btn { width: auto; }
}

/* ===========================
   About / collage
   =========================== */
.about-grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}
.about-copy p { color: var(--color-ink-soft); font-size: var(--text-lg); margin-top: var(--space-2); }
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.about-stats .stat-num {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
}
.about-stats .stat-label {
  font-size: var(--text-xs);
  color: var(--color-ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.collage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 90px);
  gap: var(--space-1);
}
@media (min-width: 480px) {
  .collage { grid-template-rows: repeat(3, 120px); }
}
.collage-tile {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-on-ink);
  position: relative;
  overflow: hidden;
}
.collage-tile svg { width: 32%; height: 32%; opacity: 0.9; }
.tile-1 { grid-column: 1 / 3; grid-row: 1 / 3; background: linear-gradient(150deg, #2C2926, #1A1817); }
.tile-2 { grid-column: 3 / 4; grid-row: 1 / 2; background: var(--color-accent); }
.tile-3 { grid-column: 3 / 4; grid-row: 2 / 4; background: var(--color-surface-alt); color: var(--color-ink); }
.tile-4 { grid-column: 1 / 3; grid-row: 3 / 4; background: var(--color-surface); color: var(--color-ink); border: 1px solid var(--color-border); }

/* ===========================
   Features
   =========================== */
.features-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .features-grid { grid-template-columns: repeat(4, 1fr); } }

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.feature-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 { font-size: var(--text-lg); margin-bottom: 0.4rem; }
.feature-card p { color: var(--color-ink-soft); font-size: var(--text-sm); }

/* ===========================
   How it works
   =========================== */
.steps {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 768px) { .steps { grid-template-columns: repeat(4, 1fr); } }

.step {
  position: relative;
  padding-top: var(--space-4);
}
.step-num {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-1);
}
.step h3 { font-size: var(--text-lg); margin-bottom: 0.4rem; }
.step p { color: var(--color-ink-soft); font-size: var(--text-sm); }
.step::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 32px;
  height: 2px;
  background: var(--color-ink);
}

/* ===========================
   Industries
   =========================== */
.industries-grid {
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 768px) { .industries-grid { grid-template-columns: repeat(3, 1fr); } }

.industry-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-weight: 500;
  transition: border-color 200ms var(--ease-out);
}
.industry-chip:hover { border-color: var(--color-ink); }
.industry-chip svg {
  width: 22px; height: 22px;
  flex-shrink: 0;
  color: var(--color-accent);
}

/* ===========================
   Pricing / Quote
   =========================== */
.quote-card {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  box-shadow: var(--shadow-card);
}
.quote-card h2 { font-size: var(--text-3xl); margin-top: var(--space-1); }
.quote-card p {
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
}

/* ===========================
   CTA banner
   =========================== */
.cta-banner {
  background: var(--color-ink);
  color: var(--color-on-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  text-align: center;
  margin-inline: var(--space-3);
}
@media (min-width: 768px) { .cta-banner { margin-inline: auto; max-width: var(--container-max); } }
.cta-banner h2 { color: var(--color-on-ink); font-size: var(--text-3xl); max-width: 20ch; margin-inline: auto; }
.cta-banner p { color: rgba(250, 249, 245, 0.75); margin-top: var(--space-2); font-size: var(--text-lg); }
.cta-actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; margin-top: var(--space-4); }
.cta-banner .btn-ghost { border-color: rgba(250, 249, 245, 0.3); color: var(--color-on-ink); }
.cta-banner .btn-ghost:hover { border-color: var(--color-on-ink); }

/* ===========================
   Footer / Contact
   =========================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6);
}
.footer-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); } }

.footer-brand p { margin-top: var(--space-2); color: var(--color-ink-soft); max-width: 32ch; }
.footer-col h4 { font-size: var(--text-sm); margin-bottom: var(--space-2); }
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a, .footer-col li { color: var(--color-ink-soft); font-size: var(--text-sm); }
.footer-col a:hover { color: var(--color-ink); }

.footer-bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-ink-faint);
}

/* Contact form (part of footer CTA) */
.contact-form {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.contact-form label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-ink-soft);
  display: block;
  margin-bottom: 0.3rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-size: var(--text-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-ink);
}

/* Desktop layout adjustments */
@media (min-width: 900px) {
  .hero-inner { max-width: 760px; margin-inline: auto; }
  .about-grid { grid-template-columns: 1fr 1fr; text-align: left; }
  .about-grid .about-copy { order: 1; }
  .about-grid .collage { order: 2; }
}