/* ==========================================================
   BEARING AI — Main Stylesheet
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* ----------------------------------------------------------
   Custom Properties
---------------------------------------------------------- */
:root {
  /* Colours */
  --c-bg:         #F9FAFB;
  --c-bg-alt:     #EEF1F5;
  --c-bg-card:    #FFFFFF;
  --c-text:       #1B2A38;
  --c-muted:      #546576;
  --c-accent:     #2C7A7A;
  --c-accent-dk:  #1F5C5C;
  --c-border:     #D7E0E9;
  --c-white:      #FFFFFF;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --max-w:        1080px;
  --px:           1.5rem;
  --section-py:   5rem;

  /* Effects */
  --radius:       6px;
  --radius-lg:    12px;
  --shadow:       0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg:    0 8px 28px rgba(0,0,0,0.09);
  --transition:   0.18s ease;
}

/* ----------------------------------------------------------
   Reset & Base
---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--c-accent);
  text-decoration: none;
}
a:hover { color: var(--c-accent-dk); }

ul { list-style: none; }

button {
  cursor: pointer;
  font-family: var(--font);
  border: none;
  background: none;
}

/* ----------------------------------------------------------
   Typography
---------------------------------------------------------- */
h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.125rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.125rem); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1rem; }

.text-muted   { color: var(--c-muted); }
.text-accent  { color: var(--c-accent); }
.text-center  { text-align: center; }

/* ----------------------------------------------------------
   Layout
---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--px);
}

.section {
  padding-block: var(--section-py);
}

.section--alt {
  background-color: var(--c-bg-alt);
}

/* ----------------------------------------------------------
   Buttons
---------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}

.btn--primary {
  background-color: var(--c-accent);
  color: var(--c-white);
  border-color: var(--c-accent);
}
.btn--primary:hover {
  background-color: var(--c-accent-dk);
  border-color: var(--c-accent-dk);
  color: var(--c-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(44, 122, 122, 0.3);
}

.btn--outline {
  background-color: transparent;
  color: var(--c-accent);
  border-color: var(--c-accent);
}
.btn--outline:hover {
  background-color: var(--c-accent);
  color: var(--c-white);
  transform: translateY(-1px);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--c-white);
  border-color: rgba(255,255,255,0.7);
}
.btn--outline-white:hover {
  background-color: var(--c-white);
  color: var(--c-accent);
  border-color: var(--c-white);
}

/* ----------------------------------------------------------
   Navigation
---------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-white);
  border-bottom: 1px solid var(--c-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1.5rem;
}

.nav__logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav__logo span { color: var(--c-accent); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav__links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-muted);
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition);
}
.nav__links a:hover,
.nav__links a.is-active {
  color: var(--c-text);
  background-color: var(--c-bg-alt);
}

.nav__links .btn {
  margin-left: 0.5rem;
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
}
.nav__links .btn:hover { color: var(--c-white); }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px 2px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background-color: var(--c-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 768px) {
  .nav__toggle { display: flex; }

  .nav__links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--c-white);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem var(--px) 1.5rem;
    gap: 0.15rem;
    box-shadow: var(--shadow-lg);
  }
  .nav__links.is-open { display: flex; }

  .nav__links a {
    padding: 0.75rem 0.9rem;
    font-size: 1rem;
  }
  .nav__links .btn {
    margin-left: 0;
    margin-top: 0.5rem;
    text-align: center;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
  }
}

/* ----------------------------------------------------------
   Hero
---------------------------------------------------------- */
.hero {
  padding-block: 5.5rem 5rem;
  border-bottom: 1px solid var(--c-border);
}

.hero__inner { max-width: 740px; }

.hero h1 { margin-bottom: 1.25rem; }

.hero__sub {
  font-size: 1.125rem;
  color: var(--c-muted);
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
}

.hero__support {
  font-size: 0.875rem;
  color: var(--c-muted);
  line-height: 1.5;
}

/* ----------------------------------------------------------
   Page Hero (inner pages)
---------------------------------------------------------- */
.page-hero {
  padding-block: 3.5rem 3rem;
  border-bottom: 1px solid var(--c-border);
}

.page-hero h1 { margin-bottom: 0.75rem; }

.page-hero p {
  font-size: 1.0625rem;
  color: var(--c-muted);
}

/* ----------------------------------------------------------
   Section Labels
---------------------------------------------------------- */
.eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 0.75rem;
}

.section-heading { margin-bottom: 0.65rem; }

.section-sub {
  font-size: 1.0625rem;
  color: var(--c-muted);
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

/* ----------------------------------------------------------
   Problem Cards
---------------------------------------------------------- */
.problem-cards {
  padding-block: var(--section-py);
}

.problem-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.problem-card {
  background-color: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
}

.problem-card p {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.55;
}

@media (max-width: 768px) {
  .problem-cards-grid { grid-template-columns: 1fr; }
}
@media (min-width: 480px) and (max-width: 768px) {
  .problem-cards-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ----------------------------------------------------------
   Process (homepage intro)
---------------------------------------------------------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-block: 2.5rem;
}

.process-step {
  background-color: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.process-step__num {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-accent);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 0.6rem;
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.process-step p {
  font-size: 0.9375rem;
  color: var(--c-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .process-steps { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   How It Works Stages (dedicated page)
---------------------------------------------------------- */
.stages { padding-block: var(--section-py); }

.stage {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 2rem;
  align-items: start;
  padding-block: 2.75rem;
  border-bottom: 1px solid var(--c-border);
}
.stage:first-child { padding-top: 0; }
.stage:last-child  { border-bottom: none; }

.stage__number {
  width: 48px;
  height: 48px;
  background-color: var(--c-accent);
  color: var(--c-white);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.stage__body h3 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.stage__body p {
  color: var(--c-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0.85rem;
}
.stage__body p:last-child { margin-bottom: 0; }

@media (max-width: 600px) {
  .stage {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* ----------------------------------------------------------
   Quote / Testimonial
---------------------------------------------------------- */
.quote-section {
  background-color: var(--c-bg-alt);
  padding-block: 5rem;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.quote-inner {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
}

.quote-mark {
  font-size: 4.5rem;
  line-height: 0.9;
  color: var(--c-accent);
  font-family: Georgia, 'Times New Roman', serif;
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0.7;
}

blockquote {
  font-size: 1.175rem;
  font-style: italic;
  color: var(--c-text);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.quote-attr {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ----------------------------------------------------------
   CTA Section
---------------------------------------------------------- */
.cta-section {
  text-align: center;
  padding-block: 5.5rem;
}

.cta-section h2 { margin-bottom: 1rem; }

.cta-section p {
  color: var(--c-muted);
  font-size: 1.0625rem;
  margin-inline: auto;
  margin-bottom: 2rem;
  max-width: 54ch;
  line-height: 1.7;
}

.cta__support {
  display: block;
  font-size: 0.875rem;
  color: var(--c-muted);
  margin-top: 1rem;
  line-height: 1.6;
}

/* ----------------------------------------------------------
   Pricing
---------------------------------------------------------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  align-items: start;
}

.pricing-card {
  background-color: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow);
}

.pricing-card--featured {
  border-color: var(--c-accent);
  border-width: 2px;
}

.pricing-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.pricing-price {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.pricing-price sub {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-muted);
  vertical-align: baseline;
  letter-spacing: 0;
}

.pricing-desc {
  font-size: 0.9375rem;
  color: var(--c-muted);
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--c-border);
  line-height: 1.6;
  margin-top: 0.75rem;
}

.pricing-features {
  margin-bottom: 2.25rem;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding-block: 0.55rem;
  font-size: 0.9375rem;
  color: var(--c-text);
  line-height: 1.5;
  border-bottom: 1px solid var(--c-border);
}
.pricing-features li:last-child { border-bottom: none; }

.pricing-features li::before {
  content: '✓';
  color: var(--c-accent);
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.pricing-footer {
  margin-top: 4rem;
  padding-top: 3.5rem;
  border-top: 1px solid var(--c-border);
  text-align: center;
}

.pricing-footer h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.pricing-footer p {
  color: var(--c-muted);
  max-width: 56ch;
  margin-inline: auto;
  margin-bottom: 2rem;
  font-size: 1rem;
  line-height: 1.7;
}

@media (max-width: 640px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   Contact Form
---------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 5rem;
  align-items: start;
  padding-block: var(--section-py);
}

.contact-info h2 { margin-bottom: 0.75rem; }

.contact-info .contact-sub {
  color: var(--c-muted);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.contact-details li {
  font-size: 0.9375rem;
  color: var(--c-muted);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.contact-details li::before {
  content: '—';
  color: var(--c-accent);
  font-weight: 700;
}

.form__group { margin-bottom: 1.25rem; }

.form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 0.4rem;
}

.form__label .optional {
  font-weight: 400;
  color: var(--c-muted);
  font-size: 0.8125rem;
}

.form__input,
.form__textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--c-text);
  background-color: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  line-height: 1.5;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(44, 122, 122, 0.15);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: #A0ADB8;
}

.form__textarea {
  min-height: 130px;
  resize: vertical;
}

.form__note {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--c-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-block: 3rem;
  }
}

/* ----------------------------------------------------------
   About Page
---------------------------------------------------------- */
.about-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 5rem;
  align-items: start;
  padding-block: var(--section-py);
}

.about-photo {
  aspect-ratio: 3/4;
  background-color: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
  gap: 0.5rem;
}

.about-photo svg {
  opacity: 0.3;
  margin-inline: auto;
}

.about-content h2 { margin-bottom: 1rem; }

.about-content p {
  color: var(--c-muted);
  font-size: 1.0625rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .about-photo {
    max-width: 280px;
    aspect-ratio: 3/4;
  }
}

/* ----------------------------------------------------------
   Case Studies
---------------------------------------------------------- */
.case-placeholder {
  text-align: center;
  padding-block: 5rem 4rem;
  padding-inline: 2rem;
  background-color: var(--c-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  margin-block: var(--section-py);
}

.case-placeholder h2 { margin-bottom: 1rem; }

.case-placeholder p {
  color: var(--c-muted);
  max-width: 52ch;
  margin-inline: auto;
  margin-bottom: 2.25rem;
  font-size: 1.0625rem;
  line-height: 1.7;
}

/* ----------------------------------------------------------
   Footer
---------------------------------------------------------- */
.footer {
  background-color: var(--c-text);
  color: rgba(255,255,255,0.7);
  padding-top: 3.5rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer__logo {
  display: inline-block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  text-decoration: none;
}
.footer__logo span { color: var(--c-accent); }

.footer__brand p {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
}

.footer__nav-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.footer__nav-group h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1rem;
}

.footer__nav-group ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer__nav-group li a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color var(--transition);
}
.footer__nav-group li a:hover { color: var(--c-white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
}

.footer__bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color var(--transition);
}
.footer__bottom a:hover { color: var(--c-white); }

@media (max-width: 640px) {
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__nav-cols { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

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