/* Field Notes design system for business.html */

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

:root {
  --b-paper: #F4F1EA;
  --b-ink: #1C1C1C;
  --b-muted: #5A5550;
  --b-warm-grey: #8A8275;
  --b-signal: #D95D39;
  --b-signal-soft: #F5E6DE;
  --b-card: #FFFFFF;
  --b-rule: #D7D2C7;

  --b-font-display: 'Syne', 'Inter', sans-serif;
  --b-font-body: 'Inter', system-ui, sans-serif;

  --b-radius: 4px;
  --b-max-width: 1100px;
  --b-header-h: 64px;
}

.business-page {
  margin: 0;
  padding: 0;
  background: var(--b-paper);
  color: var(--b-ink);
  font-family: var(--b-font-body);
  line-height: 1.6;
}

.business-page a,
.business-page button,
.business-page .business-cta {
  cursor: pointer;
}

.business-page ::selection {
  background: var(--b-signal);
  color: #fff;
}

/* Header */
.business-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--b-header-h);
  background: rgba(244, 241, 234, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--b-rule);
}

/* Header geometry must match the tech header exactly: same 1200px rail,
   same 24px gutters, same logo/link/pill sizes — only colors and fonts differ. */
.business-header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.business-logo {
  font-family: var(--b-font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--b-ink);
  text-decoration: none;
}

.business-nav {
  display: flex;
  align-items: center;
}

.business-nav-panel {
  display: flex;
  align-items: center;
  gap: 28px;
}

.business-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  cursor: pointer;
}

.business-menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--b-ink);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.business-nav.active .business-menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.business-nav.active .business-menu-toggle span:nth-child(2) {
  opacity: 0;
}

.business-nav.active .business-menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Same nav rhythm as the tech site: 0.8rem, uppercase, tracked out. */
.business-nav a {
  color: var(--b-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 0;
  text-decoration: none;
  transition: color 0.2s ease;
}

.business-nav a:hover,
.business-nav a:focus-visible {
  color: var(--b-signal);
}

.business-cta:focus-visible,
.business-socials a:focus-visible,
.business-card:focus-within,
.business-mode-switch:focus-visible,
.business-footer a:focus-visible {
  outline: 2px solid var(--b-signal);
  outline-offset: 3px;
}

.business-mode-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  height: 30px;
  color: var(--b-warm-grey);
  text-decoration: none;
  font-size: 0.7rem;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.business-mode-switch:hover {
  border-color: var(--b-signal);
  color: var(--b-signal);
  background: var(--b-signal-soft);
}

.business-nav .lang-switch {
  display: flex;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  overflow: hidden;
}

.business-nav .lang-btn {
  padding: 5px 9px;
  font-size: 0.7rem;
  color: var(--b-warm-grey);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.business-nav .lang-btn.active,
.business-nav .lang-btn:hover {
  background: var(--b-signal);
  color: #fff;
}

/* Hero */
.business-hero {
  min-height: calc(100vh - var(--b-header-h));
  display: flex;
  align-items: center;
  padding: 64px 24px;
}

.business-hero .container {
  max-width: var(--b-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.business-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--b-warm-grey);
  margin-bottom: 16px;
}

.business-hero h1 {
  font-family: var(--b-font-display);
  font-size: clamp(2rem, 4.1vw, 3.2rem);
  line-height: 1.12;
  margin: 0 0 20px;
}

.business-hero p {
  color: var(--b-muted);
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 0 28px;
}

.business-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--b-signal);
  color: #fff;
  padding: 14px 26px;
  border-radius: var(--b-radius);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.business-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 93, 57, 0.25);
}

.business-meta {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--b-warm-grey);
}

.business-portrait {
  border-radius: var(--b-radius);
  overflow: hidden;
  border: 1px solid var(--b-rule);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.business-portrait img {
  width: 100%;
  display: block;
}

/* Sections */
.business-section {
  padding: 80px 24px;
}

.business-section.alt {
  background: var(--b-card);
  border-top: 1px solid var(--b-rule);
  border-bottom: 1px solid var(--b-rule);
}

.business-section .container {
  max-width: var(--b-max-width);
  margin: 0 auto;
}

.business-section h2 {
  font-family: var(--b-font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 12px;
}

.business-section .lead {
  color: var(--b-muted);
  max-width: 560px;
  margin: 0 0 40px;
}

/* Cards */
.business-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.business-card {
  background: var(--b-card);
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.15s ease;
}

.business-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.business-card h3 {
  font-family: var(--b-font-display);
  font-size: 1.1rem;
  margin: 0 0 8px;
}

.business-card p {
  color: var(--b-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* Process */
.business-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.business-step {
  text-align: center;
  padding: 24px 16px;
  background: var(--b-card);
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
}

.business-step strong {
  display: block;
  font-family: var(--b-font-display);
  font-size: 1rem;
  margin-bottom: 6px;
}

.business-step p {
  color: var(--b-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* Case studies */
.business-cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.business-case {
  background: var(--b-card);
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  padding: 24px;
}

.business-case h3 {
  font-family: var(--b-font-display);
  margin: 0 0 8px;
}

.business-case p {
  color: var(--b-muted);
  margin: 0;
  font-size: 0.95rem;
}

.business-case .tag {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--b-signal);
  background: var(--b-signal-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

/* Case cards become media-led when an image is present. */
.business-case {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 0;
  transition: border-color 0.2s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.business-case:hover {
  border-color: rgba(217, 93, 57, 0.55);
  box-shadow: 0 16px 44px rgba(28, 28, 28, 0.12);
  transform: translateY(-4px);
}

.business-case-media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--b-signal-soft);
  border-bottom: 1px solid var(--b-rule);
}

.business-case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.82) sepia(0.1) contrast(0.98);
  transition: transform 0.45s cubic-bezier(0.2, 0.65, 0.2, 1), filter 0.3s ease;
}

.business-case:hover .business-case-media img {
  transform: scale(1.03);
  filter: saturate(0.95) sepia(0.05) contrast(1);
}

.business-case-body {
  padding: 22px 24px 26px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
}

.business-case-body p {
  flex: 1;
}

@media (prefers-reduced-motion: reduce) {
  .business-case,
  .business-case-media img {
    transition: none;
  }

  .business-case:hover {
    transform: none;
  }

  .business-case:hover .business-case-media img {
    transform: none;
  }
}

/* Contact */
.business-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.business-socials {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.business-socials a {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--b-rule);
  border-radius: 50%;
  color: var(--b-muted);
  transition: all 0.2s ease;
}

.business-socials a:hover {
  border-color: var(--b-signal);
  color: var(--b-signal);
  background: var(--b-signal-soft);
}

/* Form */
.business-form label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--b-muted);
}

.business-form input,
.business-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--b-rule);
  border-radius: var(--b-radius);
  background: var(--b-card);
  color: var(--b-ink);
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.business-form input:focus,
.business-form textarea:focus {
  outline: 2px solid var(--b-signal);
  outline-offset: 2px;
}

.consent-label { display: flex; align-items: flex-start; gap: 8px; font-size: 0.85rem; cursor: pointer; margin-bottom: 16px; }
.consent-label input[type="checkbox"] { width: auto; padding: 0; border: none; background: transparent; margin-top: 4px; }
.consent-label span { color: var(--b-muted); line-height: 1.5; }

.business-form button {
  background: var(--b-signal);
  color: #fff;
  border: none;
  padding: 14px 26px;
  border-radius: var(--b-radius);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.business-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 93, 57, 0.25);
}

/* Footer */
.business-footer {
  padding: 32px 24px;
  border-top: 1px solid var(--b-rule);
  text-align: center;
  color: var(--b-warm-grey);
  font-size: 0.85rem;
}

.business-footer a {
  color: var(--b-muted);
  text-decoration: underline;
}

.business-footer a:hover {
  color: var(--b-signal);
}

/* Mobile */
@media (max-width: 768px) {
  .business-hero .container,
  .business-contact-grid {
    grid-template-columns: 1fr;
  }

  .business-cards,
  .business-cases {
    grid-template-columns: 1fr;
  }

  .business-process {
    grid-template-columns: 1fr 1fr;
  }

  /* Hamburger menu (mirrors the tech header on mobile) */
  .business-menu-toggle {
    display: flex;
  }

  .business-nav-panel {
    position: fixed;
    inset: var(--b-header-h) 0 auto 0;
    z-index: 99;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--b-paper);
    border-bottom: 1px solid var(--b-rule);
    padding: 12px 20px 20px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }

  .business-nav.active .business-nav-panel {
    transform: translateY(0);
  }

  .business-nav-panel > a {
    padding: 13px 0;
    border-bottom: 1px solid var(--b-rule);
    font-size: 1rem;
  }

  .business-nav-panel .lang-switch {
    margin: 14px 0;
    align-self: flex-start;
    display: inline-flex;
  }

  .business-nav-panel .business-mode-switch {
    align-self: flex-start;
    padding: 8px 14px;
  }
}

/* ── Polish pass ─────────────────────────────────────────── */

/* Kraft-paper grain over the cream background. */
.business-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

/* Hero: editorial eyebrows with a hairline rule. */
.business-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--b-signal);
}

.business-eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--b-signal);
  flex: none;
}

.business-hero h1 {
  letter-spacing: -0.015em;
}

/* CTA arrow nudges on hover. */
.business-cta::after {
  content: "→";
  transition: transform 0.2s ease;
}

.business-cta:hover::after {
  transform: translateX(4px);
}

.business-form button::after {
  content: "→";
  margin-left: 10px;
  display: inline-block;
  transition: transform 0.2s ease;
}

.business-form button:hover::after {
  transform: translateX(4px);
}

/* Portrait: warm frame + soft lift. */
.business-portrait {
  border-radius: 14px;
  border: 1px solid rgba(28, 28, 28, 0.10);
  box-shadow: 0 22px 54px rgba(28, 28, 28, 0.14);
  transform: rotate(0.6deg);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.business-portrait:hover {
  transform: rotate(0deg);
  box-shadow: 0 28px 68px rgba(28, 28, 28, 0.18);
}

.business-portrait img {
  filter: saturate(0.86) sepia(0.12) contrast(0.98);
}

/* Section rhythm: airier. */
.business-section {
  padding: 96px 24px;
}

.business-section h2 {
  position: relative;
  padding-bottom: 14px;
}

.business-section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 46px;
  height: 3px;
  background: var(--b-signal);
  border-radius: 2px;
}

.business-section .lead {
  margin-top: 8px;
}

/* Problem cards: numbered marker + crisper hover. */
.business-card {
  position: relative;
  padding: 28px 26px 26px;
  counter-increment: bc;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.business-cards {
  counter-reset: bc;
}

.business-card::before {
  content: "0" counter(bc);
  position: absolute;
  top: 20px;
  right: 22px;
  font-family: var(--b-font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(28, 28, 28, 0.18);
  letter-spacing: 0.08em;
}

.business-card:hover {
  border-color: var(--b-signal);
  box-shadow: 0 10px 30px rgba(217, 93, 57, 0.10);
  transform: translateY(-3px);
}

/* Process: numbered spine — ink chips threaded on a dashed hairline,
   cards dissolve into the paper. */
.business-process {
  position: relative;
  counter-reset: step;
  gap: 36px;
}

.business-process::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 4%;
  right: 4%;
  border-top: 2px dashed rgba(28, 28, 28, 0.22);
}

.business-step {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 0 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.business-step strong {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
  font-size: 1.05rem;
}

.business-step strong::before {
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--b-ink);
  color: var(--b-paper);
  font-family: var(--b-font-display);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--b-card);
  transition: background 0.25s ease, color 0.25s ease;
}

.business-step:hover strong::before {
  background: var(--b-signal);
  color: var(--b-ink);
}

/* Reveal-on-scroll. Added via reveal.js; invisible pre-JS. */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.6s cubic-bezier(0.2, 0.65, 0.2, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .business-portrait,
  .business-portrait:hover {
    transform: none;
  }
}

@media (max-width: 900px) {
  .business-process::before {
    display: none;
  }
}

/* Keep the header one row on small phones. */
.business-mode-switch {
  white-space: nowrap;
}

@media (max-width: 480px) {
  .business-header .container {
    padding: 0 14px;
  }

  .business-logo {
    font-size: 0.95rem;
    white-space: nowrap;
  }

  .business-nav {
    gap: 8px;
  }

  .business-nav .lang-btn {
    padding: 4px 7px;
    font-size: 0.62rem;
  }

  .business-mode-switch {
    padding: 5px 7px;
    font-size: 0.6rem;
  }
}