/* =============================================
   VeloTract — Global Styles
   Light editorial system: paper background,
   hairline rules, Space Grotesk display,
   IBM Plex Mono utility labels.
   ============================================= */

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

:root {
  --paper: #F7F7F4;
  --ink: #16181D;
  --ink-2: #5C6068;
  --ink-3: #6D7179;
  --line: #E3E3DE;
  --line-strong: #D3D3CC;
  --accent: #2B5CF6;
  --accent-dark: #1E45C8;
  --navy: #0E1526;
  --navy-text: rgba(247, 247, 244, 0.92);
  --navy-muted: rgba(247, 247, 244, 0.6);
  --navy-line: rgba(247, 247, 244, 0.16);

  --font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Noto Sans SC', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;

  /* Legacy aliases — referenced by inline styles on legal pages */
  --clr-bg: var(--paper);
  --clr-bg-2: #EFEFEA;
  --clr-surface: #FFFFFF;
  --clr-surface-hover: #F0F0EB;
  --clr-border: var(--line);
  --clr-border-strong: var(--line-strong);
  --clr-blue-400: var(--accent);
  --clr-blue-500: var(--accent-dark);
  --clr-text: var(--ink);
  --clr-text-muted: var(--ink-2);
  --clr-text-subtle: var(--ink-3);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* The homepage pairs the brand display face with IBM Plex Sans, which
   shares a family with the mono already used for labels. Scoped, so the
   app product pages and legal pages are unaffected. */
body.home-page {
  font-family: 'IBM Plex Sans', 'Noto Sans SC', sans-serif;
}

::selection {
  background: var(--accent);
  color: #fff;
}

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

.skip-link {
  position: fixed;
  z-index: 1001;
  inset-block-start: 12px;
  inset-inline-start: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  transform: translateY(calc(-100% - 12px));
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

#main-content {
  scroll-margin-top: 80px;
}

/* =============================================
   Typography
   ============================================= */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

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

ul { list-style: none; }

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

/* Section head: mono label + hairline rule with a 12° slant tick */
.section-head {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 56px;
}

.section-head .mono-label {
  flex-shrink: 0;
}

.section-rule {
  position: relative;
  flex: 1;
  height: 1px;
  background: var(--line);
}

.section-rule::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: 18px;
  height: 1px;
  background: var(--ink);
  transform: translateY(-50%) rotate(-12deg);
  transform-origin: right center;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 96px 24px;
}

/* =============================================
   Navigation
   ============================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(247, 247, 244, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.nav-logo-img {
  height: 30px;
  width: auto;
  display: block;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-2);
  transition: color var(--transition);
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--ink);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 5px 12px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  transition: border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.lang-toggle:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink-2);
  border-radius: 2px;
  transition: var(--transition);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  transition: border-color var(--transition), background var(--transition);
}

.btn-secondary:hover {
  border-color: var(--ink);
  background: #fff;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--accent);
  transition: color var(--transition), gap var(--transition);
}

.text-link:hover {
  color: var(--accent-dark);
  gap: 10px;
}

/* =============================================
   Masthead (home)
   ============================================= */

.masthead {
  padding: 152px 24px 64px;
}

.masthead-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.masthead-eyebrow {
  display: block;
  margin-bottom: 30px;
  color: var(--ink-3);
}

.masthead-title {
  font-size: clamp(2.6rem, 6.2vw, 4.8rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin-bottom: 30px;
}

.masthead-title span {
  display: block;
}

.masthead-subtitle {
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  color: var(--ink-2);
  max-width: 58ch;
  line-height: 1.7;
}

/* Shared with the app product pages that still use the older hero. */
.hero-content {
  max-width: 560px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--ink);
  transform: rotate(-12deg);
}

/* Screenshot frame — used on app product pages */
.shot-frame {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 8px;
  box-shadow: 0 32px 64px -32px rgba(22, 24, 29, 0.22);
}

.shot-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-xl) - 8px);
}

/* App icon — iOS launcher icon is a square source;
   the web applies the squircle approximation plus a hairline */
.app-icon {
  display: block;
  border-radius: 22.4%;
  border: 1px solid var(--line);
}

.app-icon.pdf-tools-icon {
  border: 0;
}

/* =============================================
   The works (home)

   A studio that ships few apps can show all of
   them at once. Icon presence is the honest
   divider: shipped apps have one, unshipped
   apps do not, and the gutter is left empty.
   ============================================= */

.home-page .section-container {
  padding: 80px 24px;
}

.works .section-container {
  padding-top: 24px;
}

.works-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink);
}

.works-group-head-later {
  margin-top: 80px;
}

.works-group-title,
.works-count {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.works-group-title {
  color: var(--ink);
}

.works-count {
  color: var(--ink-2);
  letter-spacing: 0.08em;
}

.work-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.work-icon {
  width: 72px;
  height: 72px;
}

.work-text {
  min-width: 0;
}

.work-name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  transition: color var(--transition);
}

.work-tagline {
  display: block;
  margin-top: 5px;
  font-size: 0.95rem;
  color: var(--ink-2);
  line-height: 1.5;
}

.work-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-shrink: 0;
}

.work-arrow {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  transition: transform var(--transition);
}

.work-row:hover .work-name {
  color: var(--accent);
}

.work-row:hover .work-arrow {
  transform: translateX(4px);
}

/* No icon exists for these yet, so the gutter stays empty rather than
   holding a placeholder. */
.work-row-unshipped .work-text {
  grid-column: 2;
}

.work-row-unshipped .work-name {
  color: var(--ink-2);
}

.works-note {
  margin-top: 40px;
  font-size: 0.95rem;
  color: var(--ink-2);
}

.works-note a {
  color: var(--accent);
}

.works-note a:hover {
  color: var(--accent-dark);
}

.app-badge {
  display: inline-block;
  line-height: 0;
}

.app-badge img {
  height: 40px;
  width: auto;
  display: block;
}


/* =============================================
   Studio section
   ============================================= */

.studio-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: start;
}

.studio-title {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.studio-intro {
  font-size: 1.02rem;
  color: var(--ink-2);
  line-height: 1.8;
  margin-bottom: 48px;
  max-width: 520px;
}

.principle {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.principle:last-child {
  border-bottom: 1px solid var(--line);
}

.principle strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.principle p {
  font-size: 0.92rem;
  color: var(--ink-2);
  line-height: 1.7;
}

/* Spec table */
.spec-table {
  border-top: 1px solid var(--line);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 32px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.spec-row dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  flex-shrink: 0;
}

.spec-row dd {
  font-size: 0.95rem;
  text-align: right;
  line-height: 1.6;
}

.spec-row dd a {
  color: var(--accent);
}

.spec-row dd a:hover {
  color: var(--accent-dark);
}

/* =============================================
   Contact section
   ============================================= */

.contact-title {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.contact-desc {
  font-size: 1rem;
  color: var(--ink-2);
  max-width: 460px;
  margin-bottom: 56px;
}

.contact-email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: 64px;
  transition: color var(--transition);
}

.contact-email:hover {
  color: var(--accent-dark);
}

.contact-rows {
  border-top: 1px solid var(--line);
  max-width: 720px;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 32px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-row .mono-label {
  flex-shrink: 0;
  color: var(--ink-3);
}

.contact-row-value {
  font-size: 0.97rem;
  text-align: right;
  line-height: 1.6;
}

.contact-row-value a {
  color: var(--accent);
}

.contact-row-value a:hover {
  color: var(--accent-dark);
}

/* =============================================
   Footer
   ============================================= */

.footer {
  border-top: 1px solid var(--line);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 60px;
  margin-bottom: 44px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo-img {
  height: 26px;
  width: auto;
  display: block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--ink-3);
  line-height: 1.65;
}

.footer-links-col h4,
.footer-links-col .footer-column-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 18px;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links-col a {
  font-size: 0.9rem;
  color: var(--ink-2);
  transition: color var(--transition);
}

.footer-links-col a:hover {
  color: var(--ink);
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--ink-3);
}

/* =============================================
   App product pages (e.g. Loft)
   ============================================= */

.app-hero {
  padding: 160px 24px 96px;
}

.app-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.app-hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.06;
  margin: 24px 0 24px;
}

.app-hero-subtitle {
  font-size: 1.05rem;
  color: var(--ink-2);
  line-height: 1.8;
  max-width: 500px;
  margin-bottom: 40px;
}

.app-hero-cta {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.app-hero-shot {
  max-width: 360px;
  justify-self: end;
}

.app-hero-icon {
  width: 88px;
  height: 88px;
  margin-bottom: 32px;
}

/* Screenshots */
.app-shots-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.app-shot figure {
  margin: 0;
}

.app-shot figcaption {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink-2);
}

/* Feature spec list */
.app-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 64px;
}

.app-feature-item {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.app-feature-item .mono-label {
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}

.app-feature-item h2,
.app-feature-item h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 10px;
}

.app-feature-item p {
  font-size: 0.94rem;
  color: var(--ink-2);
  line-height: 1.75;
}

/* Link rows (privacy / support) */
.app-link-rows {
  border-top: 1px solid var(--line);
}

.app-link-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: padding var(--transition);
}

.app-link-row:hover {
  padding-left: 8px;
}

.app-link-row-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.app-link-row-text p {
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.6;
}

.app-link-row-arrow {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}

/* =============================================
   App legal and support pages
   ============================================= */

.legal-page {
  min-height: 100vh;
  padding: 120px 24px 80px;
}

.legal-content {
  max-width: 760px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: clamp(2.25rem, 5vw, 2.8rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--ink-3);
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.legal-content h2 {
  font-size: 1.3rem;
  font-weight: 500;
  margin: 40px 0 14px;
  color: var(--ink);
}

.legal-content p,
.legal-content ul li {
  font-size: 0.97rem;
  color: var(--ink-2);
  line-height: 1.8;
}

.legal-content p {
  margin-bottom: 14px;
}

.legal-content p a {
  color: var(--accent);
  font-weight: 600;
}

.legal-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 14px;
}

.legal-content ul li {
  margin-bottom: 6px;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 36px;
  transition: gap var(--transition);
}

.legal-back:hover {
  gap: 12px;
}

.faq-item {
  background: var(--clr-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
}

.faq-item h2,
.faq-item h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 0.93rem;
  line-height: 1.75;
  margin-bottom: 0;
}

.support-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.support-links a {
  color: var(--accent);
  font-weight: 600;
}

/* =============================================
   Scroll reveal
   ============================================= */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* =============================================
   Responsive
   ============================================= */

@media (max-width: 1024px) {
  .app-hero-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .app-hero-shot {
    justify-self: start;
    max-width: 300px;
  }

  .studio-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(247, 247, 244, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 18px;
    border-bottom: 1px solid var(--line);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .section-container {
    padding: 72px 20px;
  }

  .masthead {
    padding: 116px 20px 48px;
  }

  .app-hero {
    padding: 120px 20px 64px;
  }

  .app-shots-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 20px;
    padding-bottom: 12px;
  }

  .app-shot {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }

  .app-features-grid {
    grid-template-columns: 1fr;
  }

  .work-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 8px 18px;
    padding: 20px 0;
  }

  .work-icon {
    width: 56px;
    height: 56px;
  }

  .work-meta {
    grid-column: 2;
    gap: 14px;
  }

  .work-name {
    font-size: 1.3rem;
  }

  .contact-row,
  .spec-row {
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }

  .contact-row-value,
  .spec-row dd {
    text-align: left;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}