/* Pairwise Tech — shared stylesheet */

:root {
  --ink: #2E3338;
  --ink-90: rgba(46, 51, 56, 0.9);
  --paper: #EEF0F2;
  --slate: #6E7681;
  --surface: #FFFFFF;
  --border: rgba(46, 51, 56, 0.1);
  --border-strong: rgba(46, 51, 56, 0.2);
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono', Menlo, Consolas, monospace;
  --max-w: 1120px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --squircle: 22%;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--surface);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01";
}

a { color: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 0.5px solid var(--border);
}
.nav > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.logo-link { display: inline-flex; align-items: center; }
.logo { height: 28px; width: auto; display: block; }
.nav nav { display: flex; align-items: center; gap: 28px; }
.nav nav a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: -0.2px;
  text-decoration: none;
  color: var(--ink);
  opacity: 0.6;
  transition: opacity 0.15s ease;
}
.nav nav a:hover,
.nav nav a.is-active {
  opacity: 1;
}
.nav nav a.nav-cta {
  opacity: 0.85;
  padding: 8px 14px;
  border: 0.5px solid var(--border-strong);
  border-radius: 999px;
}
.nav nav a.nav-cta:hover {
  background: var(--ink);
  color: var(--surface);
  border-color: var(--ink);
  opacity: 1;
}

/* ============ TYPE ============ */
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 32px;
}
h1 {
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -2.5px;
  max-width: 860px;
}
h2 {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--slate);
  font-weight: 500;
  margin-bottom: 28px;
}
h3.title {
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 500;
  letter-spacing: -1px;
  line-height: 1.15;
  max-width: 780px;
  margin-bottom: 48px;
}
.sub {
  font-size: clamp(17px, 1.4vw, 20px);
  color: var(--slate);
  max-width: 620px;
  line-height: 1.55;
}
.sub a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 0.5px solid currentColor;
  padding-bottom: 1px;
  transition: opacity 0.15s ease;
}
.sub a:hover { opacity: 0.6; }

/* ============ HERO ============ */
.hero {
  padding: 120px 0 96px;
}
.hero .sub { margin-top: 24px; margin-bottom: 40px; }
.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: -0.2px;
  text-decoration: none;
  transition: all 0.15s ease;
}
.btn-primary {
  background: var(--ink);
  color: var(--surface);
}
.btn-primary:hover { opacity: 0.88; }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 0.5px solid var(--border-strong);
}
.btn-secondary:hover { border-color: var(--ink); }

/* ============ STATS ============ */
.stats-strip {
  border-top: 0.5px solid var(--border);
  border-bottom: 0.5px solid var(--border);
  background: var(--paper);
}
.stats-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 48px;
  padding-bottom: 48px;
}
.stat .num {
  font-family: var(--mono);
  font-size: clamp(36px, 3.8vw, 48px);
  font-weight: 500;
  letter-spacing: -1.8px;
  line-height: 1;
  margin-bottom: 10px;
}
.stat .num span {
  font-size: 0.5em;
  color: var(--slate);
  margin-left: 2px;
}
.stat .label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.3px;
}

/* ============ BLOCK SECTIONS ============ */
.block {
  padding: 104px 0;
  border-bottom: 0.5px solid var(--border);
}
.block.bg-paper { background: var(--paper); }

/* ============ SERVICES ============ */
.services-list {
  border-top: 0.5px solid var(--border);
}
.service-row {
  display: grid;
  grid-template-columns: 64px 260px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 0.5px solid var(--border);
  align-items: baseline;
}
.service-row .s-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--slate);
  letter-spacing: 0.3px;
}
.service-row .s-name {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.service-row .s-desc {
  font-size: 15px;
  color: var(--slate);
  line-height: 1.6;
  max-width: 560px;
}
.service-row .s-desc .tools {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  letter-spacing: 0;
  display: block;
  margin-top: 6px;
}
.services-credibility {
  margin-top: 56px;
  padding: 32px;
  background: var(--paper);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.services-credibility .cred-block h6 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 10px;
  font-weight: 500;
}
.services-credibility .cred-block p {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
}
.services-credibility .cred-block p strong {
  font-weight: 500;
}

/* ============ WORK GRID ============ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px 24px;
}
.work-grid.work-grid-sm { grid-template-columns: repeat(3, 1fr); }
.app-card {
  display: block;
  text-decoration: none;
  color: inherit;
}
.app-icon {
  width: 100%;
  max-width: 160px;
  aspect-ratio: 1 / 1;
  border-radius: var(--squircle);
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 14px;
  transition: transform 0.25s ease;
  overflow: hidden;
}
.app-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.app-card:hover .app-icon { transform: translateY(-3px); }
.app-icon span {
  color: var(--paper);
  font-family: var(--mono);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: -3px;
  line-height: 1;
}
.app-name {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.3px;
  margin-bottom: 4px;
}
.app-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--slate);
  line-height: 1.5;
}

/* subtle tone variants keep grid visually alive while staying monochrome */
.app-icon.tone-1 { background: #2E3338; }
.app-icon.tone-2 { background: #3D4349; }
.app-icon.tone-3 { background: #262B30; }
.app-icon.tone-4 { background: #45494F; }
.app-icon.tone-5 { background: #33383D; }
.app-icon.tone-6 { background: #2A2E33; }
.app-icon.tone-7 { background: #4A5159; }
.app-icon.tone-8 { background: #383D42; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 14px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 0.5px solid var(--ink);
  padding-bottom: 3px;
  transition: opacity 0.15s ease;
}
.link-arrow:hover { opacity: 0.6; }

/* ============ TEAM EXPERIENCE STRIP ============ */
.experience-section .title { margin-bottom: 20px; }
.experience-sub {
  font-size: 17px;
  color: var(--slate);
  max-width: 680px;
  margin-bottom: 48px;
  line-height: 1.55;
}
.logo-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 32px 56px;
  padding-top: 44px;
  border-top: 0.5px solid var(--border);
  align-items: baseline;
}
.logo-strip .company {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 500;
  letter-spacing: -0.8px;
  color: var(--slate);
  transition: color 0.2s ease;
  cursor: default;
}
.logo-strip .company:hover { color: var(--ink); }

/* ============ TEAM APPS (personal apps) ============ */
.app-card .app-by {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--slate);
  margin-top: 4px;
  letter-spacing: 0.3px;
}

/* ============ COMING SOON STATE ============ */
.app-card.coming-soon {
  cursor: default;
  pointer-events: none;
}
.app-card.coming-soon .app-icon {
  opacity: 0.65;
  filter: saturate(0.7);
}
.app-card .soon-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--slate);
  background: var(--paper);
  border: 0.5px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  margin-top: 6px;
}

/* ============ APP DETAIL PAGES ============ */
.app-page-hero {
  padding: 96px 0 72px;
  border-bottom: 0.5px solid var(--border);
}
.app-hero-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 56px;
  align-items: center;
}
.app-hero-grid .hero-icon {
  width: 180px;
  height: 180px;
  border-radius: var(--squircle);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.app-hero-grid .hero-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.app-hero-grid .hero-icon span {
  font-family: var(--mono);
  font-size: 108px;
  font-weight: 500;
  letter-spacing: -5px;
  color: var(--paper);
  line-height: 1;
}
.app-hero-grid h1 {
  font-size: clamp(42px, 5.5vw, 64px);
  margin-bottom: 10px;
  letter-spacing: -2px;
}
.app-hero-grid .sub {
  margin-bottom: 24px;
}
.app-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  margin-bottom: 32px;
  letter-spacing: 0.3px;
}
.app-meta-strip .sep {
  color: rgba(46, 51, 56, 0.25);
}
.app-container { max-width: 780px; }
.app-desc {
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink);
}
.app-desc p + p { margin-top: 18px; }
.app-features {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 40px;
}
.app-features li {
  padding-left: 20px;
  position: relative;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
}
.app-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
}
.app-features li strong {
  font-weight: 500;
  display: block;
  margin-bottom: 2px;
}
.app-features li span {
  color: var(--slate);
  font-size: 13px;
  line-height: 1.5;
}
.app-screens {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.app-screen {
  aspect-ratio: 9 / 19;
  border-radius: 36px;
  background: var(--ink);
  border: 6px solid #1E2226;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.app-screen::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 18px;
  background: #1E2226;
  border-radius: 10px;
}
.app-screen .screen-label {
  font-family: var(--mono);
  font-size: 13px;
  color: rgba(238, 240, 242, 0.45);
  letter-spacing: 0.4px;
  text-align: center;
  padding: 0 20px;
}
.app-credits-line {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--slate);
  margin-top: 28px;
  padding-top: 20px;
  border-top: 0.5px solid var(--border);
}

/* ============ TESTIMONIALS ============ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.testimonial {
  padding: 32px;
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}
.testimonial blockquote {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 24px;
  letter-spacing: -0.1px;
  flex: 1;
}
.testimonial .t-attr {
  border-top: 0.5px solid var(--border);
  padding-top: 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.3px;
}
.testimonial .t-attr strong {
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: -0.2px;
  font-size: 14px;
  display: block;
  margin-bottom: 2px;
}

/* ============ MANIFESTO / BLOCKQUOTE ============ */
.manifesto blockquote {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 500;
  letter-spacing: -0.7px;
  line-height: 1.3;
  max-width: 820px;
  margin-bottom: 24px;
}
.manifesto .author {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--slate);
}

/* ============ TEAM GRID ============ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px 32px;
}
.team-card .avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -1px;
  margin-bottom: 20px;
  border: 0.5px solid var(--border);
}
.team-card .t-name {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.3px;
  margin-bottom: 2px;
}
.team-card .t-role {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  margin-bottom: 12px;
  letter-spacing: 0.2px;
}
.team-card .t-bio {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-90);
  margin-bottom: 14px;
}
.team-card .t-prev {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.4px;
  padding-top: 12px;
  border-top: 0.5px dashed rgba(46, 51, 56, 0.2);
}
.team-card .t-prev .pre {
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-right: 8px;
}
.team-card .t-prev strong {
  color: var(--ink);
  font-weight: 500;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: -0.2px;
  margin-right: 6px;
}
.team-card .t-prev strong:not(:last-child)::after {
  content: " · ";
  color: var(--slate);
  margin-left: 6px;
}
.team-card .t-links {
  font-family: var(--mono);
  font-size: 11px;
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  letter-spacing: 0.3px;
}
.team-card .t-links a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 0.5px solid transparent;
  padding-bottom: 1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.team-card .t-links a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ============ PROCESS ============ */
.process-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 0.5px solid var(--border);
}
.process-item {
  display: grid;
  grid-template-columns: 80px 1fr 160px;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 0.5px solid var(--border);
  align-items: baseline;
}
.process-item .p-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--slate);
}
.process-item .p-body h5 {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.4px;
  margin-bottom: 6px;
}
.process-item .p-body p {
  font-size: 15px;
  color: var(--slate);
  line-height: 1.55;
  max-width: 520px;
}
.process-item .p-duration {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--slate);
  text-align: right;
}

/* ============ LIST SECTIONS (clients / press / awards) ============ */
.cols-2 {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 48px 0;
  border-bottom: 0.5px solid var(--border);
}
.cols-2:first-of-type { border-top: 0.5px solid var(--border); }
.cols-2 h4 {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--slate);
  font-weight: 500;
}
.cols-2 ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 32px;
}
.cols-2 ul li {
  font-size: 16px;
  letter-spacing: -0.2px;
  padding: 6px 0;
}
.cols-2 ul li .muted {
  color: var(--slate);
  font-family: var(--mono);
  font-size: 12px;
  margin-left: 8px;
}

/* ============ PAGE HEADER ============ */
.page-header {
  padding: 120px 0 72px;
  border-bottom: 0.5px solid var(--border);
}
.page-header h1 {
  margin-bottom: 18px;
}

/* ============ FOOTER ============ */
footer.site-footer {
  background: var(--paper);
  padding: 72px 0 40px;
}
footer.site-footer .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
footer.site-footer .f-brand .logo { height: 24px; margin-bottom: 16px; }
footer.site-footer .f-brand p {
  font-size: 14px;
  color: var(--slate);
  max-width: 300px;
  line-height: 1.55;
}
footer.site-footer h5 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.8px;
  color: var(--slate);
  text-transform: uppercase;
  margin-bottom: 14px;
  font-weight: 500;
}
footer.site-footer a {
  display: block;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
  opacity: 0.85;
}
footer.site-footer a:hover { opacity: 0.5; }
footer.site-footer .fine {
  border-top: 0.5px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 860px) {
  .container { padding: 0 24px; }
  .hero { padding: 72px 0 64px; }
  .stats-strip .container { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .services { grid-template-columns: 1fr; }
  .work-grid, .work-grid.work-grid-sm { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
  .testimonials-grid { grid-template-columns: 1fr; gap: 16px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .block { padding: 72px 0; }
  .process-item { grid-template-columns: 50px 1fr; }
  .process-item .p-duration { grid-column: 2; text-align: left; font-size: 12px; margin-top: 4px; }
  .service-row { grid-template-columns: 44px 1fr; gap: 16px; }
  .service-row .s-desc { grid-column: 2; max-width: none; margin-top: 4px; }
  .services-credibility { grid-template-columns: 1fr; gap: 24px; padding: 24px; }
  .app-hero-grid { grid-template-columns: 1fr; gap: 28px; text-align: left; }
  .app-hero-grid .hero-icon { width: 120px; height: 120px; }
  .app-hero-grid .hero-icon span { font-size: 72px; letter-spacing: -3px; }
  .app-features { grid-template-columns: 1fr; gap: 16px; }
  .app-screens { grid-template-columns: repeat(2, 1fr); }
  .cols-2 { grid-template-columns: 1fr; gap: 20px; padding: 32px 0; }
  .cols-2 ul { grid-template-columns: 1fr; }
  footer.site-footer .container { grid-template-columns: 1fr 1fr; gap: 32px; }
  footer.site-footer .f-brand { grid-column: 1 / -1; }
  .nav nav { gap: 16px; }
  .nav nav a.nav-cta { display: none; }
}

@media (max-width: 480px) {
  .work-grid, .work-grid.work-grid-sm { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  footer.site-footer .container { grid-template-columns: 1fr; }
}