:root {
  --clr-white: #ffffff;
  --clr-offwhite: #f7f7f7;
  --clr-light-gray: #e6e6e6;
  --clr-mid-gray: #888888;
  --clr-dark-gray: #2a2a2a;
  --clr-black: #111111;
  --font-main: 'Nunito', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 32px;
  --transition-fast: 0.2s ease;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--clr-offwhite);
  color: var(--clr-dark-gray);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--clr-mid-gray);
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--clr-black);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.typo-massive {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

/* Buttons / Pills */
.oak-action-pill {
  display: inline-block;
  background-color: var(--clr-white);
  color: var(--clr-black);
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  border: 2px solid var(--clr-black);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-align: center;
}

.oak-action-pill:hover {
  background-color: var(--clr-black);
  color: var(--clr-white);
}

.dark-pill {
  background-color: var(--clr-black);
  color: var(--clr-white);
}

.dark-pill:hover {
  background-color: var(--clr-white);
  color: var(--clr-black);
}

/* Header */
.oak-top-masthead {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(247, 247, 247, 0.95);
  backdrop-filter: blur(10px);
  z-index: 100;
  padding: 1rem 5%;
  border-bottom: 1px solid var(--clr-light-gray);
}

.oak-nav-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.oak-brand-mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--clr-black);
}

.oak-primary-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-weight: 600;
}

.oak-ghost-link {
  opacity: 0.6;
}

/* Hero */
.ledger-hero-stage {
  position: relative;
  padding: 8rem 5% 6rem;
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}

.ledger-hero-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.shape-blob-one {
  position: absolute;
  top: -10%;
  left: -5%;
  width: 600px;
  opacity: 0.7;
}

.shape-blob-two {
  position: absolute;
  bottom: 0;
  right: 10%;
  width: 500px;
  opacity: 0.5;
}

.ledger-sub-text {
  font-size: 1.35rem;
  color: var(--clr-mid-gray);
  margin-bottom: 2.5rem;
  max-width: 90%;
}

.ledger-hero-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.hero-micro-note {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clr-mid-gray);
  font-weight: 800;
}

.ledger-hero-visual img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  height: 600px;
}

/* About / Deep Dive */
.oak-deep-dive-section {
  background-color: var(--clr-white);
  padding: 7.5rem 6%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  border-radius: 40px 40px 0 0;
}

.oak-section-eyebrow {
  display: inline-block;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-mid-gray);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.oak-metrics-cluster {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--clr-light-gray);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-val, .metric-sym {
  font-size: 3rem;
  font-weight: 800;
  color: var(--clr-black);
  line-height: 1;
}

.metric-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-mid-gray);
  margin-top: 0.5rem;
}

.oak-image-column {
  position: relative;
}

.oak-image-column img {
  border-radius: var(--radius-md);
  height: 500px;
}

.oak-hours-card {
  position: absolute;
  bottom: -30px;
  left: -30px;
  background: var(--clr-black);
  color: var(--clr-white);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.oak-hours-card h4 {
  color: var(--clr-white);
  margin-bottom: 0.5rem;
}

.oak-hours-card p {
  margin-bottom: 0;
  font-size: 0.95rem;
  opacity: 0.8;
}

/* Noise Break */
.ledger-noise-break {
  background-color: var(--clr-light-gray);
  text-align: center;
  padding: 1rem 5%;
  font-size: 0.85rem;
}

.ledger-noise-break p {
  margin: 0;
}

.ledger-noise-break a {
  font-weight: 800;
  text-decoration: underline;
}

/* Services */
.oak-services-area {
  padding: 6rem 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.oak-services-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.advisory-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 5rem;
}

.advisory-card {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.03);
  border: 1px solid var(--clr-light-gray);
}

.advisory-card.pushed-down {
  transform: translateY(30px);
}

.advisory-card img {
  height: 240px;
}

.advisory-card h3, .advisory-card p {
  padding: 0 2rem;
}

.advisory-card h3 {
  margin-top: 2rem;
}

.advisory-card p {
  margin-bottom: 2rem;
  color: var(--clr-mid-gray);
}

.advisory-card-text-only {
  padding: 3rem 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: var(--clr-black);
  color: var(--clr-white);
}

.advisory-card-text-only h3 {
  color: var(--clr-white);
  padding: 0;
  margin-top: 0;
}

.advisory-card-text-only p {
  padding: 0;
  color: var(--clr-light-gray);
}

.advisory-list {
  list-style: none;
  margin-top: 1rem;
}

.advisory-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-weight: 600;
  font-size: 0.95rem;
}

/* FAQ */
.oak-faq-module {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--clr-light-gray);
}

.faq-trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.5rem 0;
  font-size: 1.2rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--clr-black);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform var(--transition-fast);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-content p {
  padding-bottom: 1.5rem;
  color: var(--clr-mid-gray);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Testimonials */
.ledger-testimonials-staggered {
  padding: 8rem 5%;
  background-color: var(--clr-white);
}

.ledger-testimonials-staggered h2 {
  text-align: center;
  margin-bottom: 5rem;
}

.feedback-canvas {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  min-height: 600px;
}

.feedback-node {
  background: var(--clr-offwhite);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 450px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  position: absolute;
}

.feedback-node p {
  font-style: italic;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--clr-black);
}

.feedback-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.feedback-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.feedback-author strong {
  display: block;
  font-size: 1rem;
  color: var(--clr-black);
}

.feedback-author span {
  font-size: 0.85rem;
  color: var(--clr-mid-gray);
}

.node-1 { top: 0; left: 0; }
.node-2 { top: 150px; right: 0; z-index: 2; }
.node-3 { top: 320px; left: 10%; }

/* Contact */
.oak-contact-block {
  padding: 6rem 5%;
  background-color: var(--clr-offwhite);
}

.contact-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.05);
}

.contact-copy {
  padding: 4rem;
  background: var(--clr-black);
  color: var(--clr-white);
  display: flex;
  flex-direction: column;
}

.contact-copy h2 {
  color: var(--clr-white);
}

.contact-copy p {
  color: var(--clr-light-gray);
  margin-bottom: 3rem;
}

.contact-img-accent {
  margin-top: auto;
  border-radius: var(--radius-sm);
  height: 200px;
  opacity: 0.8;
}

.contact-form-wrapper {
  padding: 4rem 4rem 4rem 0;
}

.oak-form .form-group {
  margin-bottom: 1.5rem;
}

.oak-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.oak-form input,
.oak-form textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--clr-light-gray);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background-color: var(--clr-offwhite);
  transition: border-color var(--transition-fast);
}

.oak-form input:focus,
.oak-form textarea:focus {
  outline: none;
  border-color: var(--clr-black);
}

.form-submit-btn {
  width: 100%;
  margin-top: 1rem;
}

/* Footer */
.oak-global-footer {
  background-color: var(--clr-white);
  padding: 5rem 5% 2rem;
  border-top: 1px solid var(--clr-light-gray);
}

.footer-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-grid h3, .footer-grid h4 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.footer-grid p, .footer-grid ul {
  color: var(--clr-mid-gray);
  font-size: 0.95rem;
}

.footer-grid ul {
  list-style: none;
}

.footer-grid ul li {
  margin-bottom: 0.75rem;
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--clr-light-gray);
  color: var(--clr-mid-gray);
  font-size: 0.85rem;
}

/* Simple Pages (Privacy/Terms) */
.simple-page-wrap {
  padding: 8rem 5% 4rem;
  max-width: 800px;
  margin: 0 auto;
  min-height: 70vh;
}

.simple-page-wrap h1 {
  margin-bottom: 2rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-weight: 600;
  text-decoration: underline;
}

/* Responsive Layout Leakage & Adjustments */
@media (max-width: 1024px) {
  .ledger-hero-stage {
    grid-template-columns: 1fr;
    padding: 6rem 5% 4rem;
  }
  .ledger-hero-visual img {
    height: 400px;
  }
  .oak-deep-dive-section {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .oak-hours-card {
    position: static;
    margin-top: -2rem;
    margin-left: 2rem;
    width: max-content;
  }
  .advisory-card-grid {
    grid-template-columns: 1fr 1fr;
  }
  .advisory-card.pushed-down {
    transform: none;
  }
  .feedback-canvas {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    min-height: auto;
  }
  .feedback-node {
    position: static;
  }
  .contact-inner {
    grid-template-columns: 1fr;
  }
  .contact-form-wrapper {
    padding: 2rem 4rem 4rem;
  }
}

@media (max-width: 768px) {
  .oak-primary-links {
    display: none; /* Simplistic mobile handling for demo */
  }
  .advisory-card-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .contact-copy, .contact-form-wrapper {
    padding: 2rem;
  }
}