:root {
  --articulo-bg: #090e1a;
  --articulo-surface: #131b2e;
  --articulo-surface-alt: #1e2942;
  --articulo-ink: #f8fafc;
  --articulo-ink-dim: #94a3b8;
  --articulo-accent: #06b6d4;
  --articulo-gradient: linear-gradient(135deg, #0f766e 0%, #0284c7 50%, #4f46e5 100%);
  --articulo-gradient-hover: linear-gradient(135deg, #115e59 0%, #0369a1 50%, #4338ca 100%);
  --articulo-accent-dark: #0f172a;
  --font-display: 'Raleway', sans-serif;
  --font-body: 'Inter', sans-serif;
  --articulo-radius: 16px;
  --articulo-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.45), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

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

body {
  background-color: var(--articulo-bg);
  color: var(--articulo-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

/* Scroll-driven progress bar */
@keyframes progress-grow {
  to { width: 100%; }
}
.joint-scroll-progress {
  height: 4px;
  width: 0;
  background: var(--articulo-accent);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

/* Header Design (Preset F: Corporate Gradient) */
.joint-header-base {
  background: var(--articulo-gradient);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  position: sticky;
  top: 0;
  z-index: 999;
}

.joint-header-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
}

.joint-logo-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-display);
  color: #fff;
}

.joint-logo-svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

.joint-nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.joint-nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.5rem 0;
  position: relative;
}

.joint-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #fff;
  transition: width 0.3s ease;
}

.joint-nav-link:hover::after,
.joint-nav-link-active::after {
  width: 100%;
}

/* Mobile Navigation Hamburger */
.joint-hamburger-toggle {
  display: none;
}

.joint-hamburger-icon {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  z-index: 1001;
}

.joint-hamburger-icon span {
  display: block;
  width: 28px;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero Section (Preset F) */
.joint-hero-center {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 16dvh 2rem 10dvh;
  background: linear-gradient(rgba(9, 14, 26, 0.8), rgba(9, 14, 26, 0.95)), url('img/bg.webp') no-repeat center center/cover;
}

.joint-hero-text-wrap {
  max-width: 850px;
  margin-bottom: 3rem;
}

.joint-hero-h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
  color: #fff;
}

.joint-hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--articulo-ink-dim);
  margin-bottom: 2.5rem;
}

.joint-cta-btn {
  display: inline-block;
  background: var(--articulo-gradient);
  color: #fff;
  padding: 1rem 2.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: var(--articulo-radius);
  box-shadow: var(--articulo-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s;
  border: none;
  cursor: pointer;
}

.joint-cta-btn:hover {
  transform: translateY(-2px);
  background: var(--articulo-gradient-hover);
  box-shadow: 0 15px 30px rgba(6, 182, 212, 0.4);
}

/* Animated Counters Block */
.joint-hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  width: 100%;
  margin-top: 2rem;
}

.joint-stat-counter {
  background: var(--articulo-surface);
  padding: 2rem;
  border-radius: var(--articulo-radius);
  box-shadow: var(--articulo-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-stat-num {
  font-size: 3rem;
  font-weight: 800;
  color: var(--articulo-accent);
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

.joint-stat-desc {
  color: var(--articulo-ink-dim);
  font-size: 0.95rem;
}

/* Trust Ribbon */
.joint-trust-ribbon {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  padding: 2rem 0;
  margin-top: 4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-trust-track {
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 2rem;
  opacity: 0.6;
}

.joint-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.joint-trust-svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Scroll Section (Preset F Horizontal on Mobile, 3 Cards Desktop) */
.joint-scroll-sec {
  padding: 16dvh 2rem;
  background: linear-gradient(rgba(9, 14, 26, 0.9), rgba(9, 14, 26, 0.9)), url('img/bg2.webp') no-repeat center center/cover;
}

.joint-sec-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

.joint-sec-h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

.joint-sec-p {
  color: var(--articulo-ink-dim);
  font-size: 1.1rem;
}

.joint-scroll-track-container {
  max-width: 1200px;
  margin: 0 auto;
}

.joint-scroll-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.joint-scroll-card {
  background: var(--articulo-surface);
  border-radius: var(--articulo-radius);
  padding: 3rem 2rem;
  box-shadow: var(--articulo-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.3s ease;
}

.joint-scroll-card:hover {
  transform: translateY(-5px);
}

.joint-card-icon {
  background: var(--articulo-gradient);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.joint-card-icon svg {
  width: 30px;
  height: 30px;
  fill: #fff;
}

.joint-card-h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #fff;
}

.joint-card-desc {
  color: var(--articulo-ink-dim);
}

/* Features Section (2x3 or 2x2 grid based on random element counts) */
.joint-feat-sec {
  padding: 16dvh 2rem;
  background-color: var(--articulo-surface-alt);
}

.joint-feat-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.joint-feat-node {
  background: var(--articulo-surface);
  border-radius: var(--articulo-radius);
  padding: 2.5rem;
  box-shadow: var(--articulo-shadow);
  border-left: 5px solid var(--articulo-accent);
  transition: all 0.4s ease;
}

.joint-feat-node:hover {
  background: var(--articulo-gradient);
  color: #fff;
  border-left-color: #fff;
  transform: scale(1.02);
}

.joint-feat-node:hover .joint-feat-h3,
.joint-feat-node:hover .joint-feat-desc,
.joint-feat-node:hover .joint-feat-num {
  color: #fff;
}

.joint-feat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--articulo-accent);
  opacity: 0.3;
  float: right;
  line-height: 1;
}

.joint-feat-h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #fff;
  transition: color 0.3s;
}

.joint-feat-desc {
  color: var(--articulo-ink-dim);
  transition: color 0.3s;
}

/* How It Works (Stepper) */
.joint-stepper-sec {
  padding: 16dvh 2rem;
  background-color: var(--articulo-bg);
}

.joint-stepper-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
}

.joint-stepper-node {
  text-align: center;
  position: relative;
}

.joint-step-circle {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--articulo-surface);
  border: 3px solid var(--articulo-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--articulo-accent);
  margin: 0 auto 1.5rem;
  box-shadow: var(--articulo-shadow);
}

.joint-step-h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #fff;
}

.joint-step-desc {
  color: var(--articulo-ink-dim);
  font-size: 0.95rem;
}

/* CTA Strip (Preset F Style) */
.joint-cta-banner {
  background: var(--articulo-gradient);
  padding: 6rem 3rem;
  box-shadow: var(--articulo-shadow);
}

.joint-cta-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.joint-cta-h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  color: #fff;
  max-width: 700px;
}

.joint-btn-dark {
  background-color: var(--articulo-accent-dark);
  color: #fff;
  padding: 1.2rem 2.5rem;
  font-weight: 700;
  border-radius: var(--articulo-radius);
  transition: transform 0.2s, background-color 0.3s;
  box-shadow: var(--articulo-shadow);
}

.joint-btn-dark:hover {
  transform: translateY(-2px);
  background-color: #000;
}

/* Footer Design */
.joint-footer-base {
  background-color: #060a12;
  padding: 5rem 2rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1200px;
  margin: 0 auto 3rem;
  gap: 3rem;
  flex-wrap: wrap;
}

.joint-footer-text {
  max-width: 350px;
}

.joint-footer-text p {
  color: var(--articulo-ink-dim);
  margin-top: 1rem;
  font-size: 0.95rem;
}

.joint-footer-nav {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.joint-footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.joint-footer-links-col h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.joint-footer-links-col a {
  color: var(--articulo-ink-dim);
  font-size: 0.95rem;
}

.joint-footer-links-col a:hover {
  color: var(--articulo-accent);
}

.joint-disclaimer-box {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.joint-disclaimer-text {
  font-size: 0.85rem;
  color: var(--articulo-ink-dim);
  margin-bottom: 1rem;
}

.joint-copyright {
  font-size: 0.85rem;
  color: var(--articulo-ink-dim);
}

/* Cookie Banner styling */
.joint-cookie-box {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--articulo-surface);
  border-top: 3px solid var(--articulo-accent);
  padding: 1.5rem 2rem;
  z-index: 99999;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.5);
  display: none;
}

.joint-cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.joint-cookie-text {
  font-size: 0.95rem;
  color: var(--articulo-ink);
  max-width: 800px;
}

.joint-cookie-btns {
  display: flex;
  gap: 1rem;
}

.joint-cookie-btn {
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}

.joint-cookie-accept {
  background: var(--articulo-gradient);
  color: #fff;
}

.joint-cookie-decline {
  background: rgba(255, 255, 255, 0.1);
  color: var(--articulo-ink);
}

.joint-cookie-btn:hover {
  opacity: 0.9;
}

/* Expert Page Specifics */
.joint-expert-showcase {
  padding: 16dvh 2rem;
  background-color: var(--articulo-bg);
}

.joint-expert-grid {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.joint-expert-pic-frame {
  position: relative;
  border-radius: var(--articulo-radius);
  overflow: hidden;
  box-shadow: var(--articulo-shadow);
  border: 4px solid var(--articulo-surface-alt);
}

.joint-expert-pic {
  width: 100%;
  height: auto;
  display: block;
}

.joint-expert-bio {
  max-width: 700px;
}

.joint-expert-tag {
  color: var(--articulo-accent);
  font-weight: 700;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: block;
  margin-bottom: 1rem;
}

.joint-expert-name {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: #fff;
  margin-bottom: 1.5rem;
}

.joint-expert-bio-p {
  font-size: 1.1rem;
  color: var(--articulo-ink-dim);
  margin-bottom: 2rem;
}

.joint-expert-bio-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.joint-expert-bio-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--articulo-ink);
}

.joint-expert-bio-svg {
  width: 20px;
  height: 20px;
  fill: var(--articulo-accent);
}

/* Reserve Page Specifics */
.joint-reserve-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16dvh 2rem;
}

.joint-reserve-sticky-col {
  position: sticky;
  top: 150px;
}

.joint-reserve-h2 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: #fff;
  margin-bottom: 1.5rem;
}

.joint-reserve-intro-p {
  color: var(--articulo-ink-dim);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.joint-reserve-card-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.joint-reserve-card {
  background: var(--articulo-surface);
  padding: 2rem;
  border-radius: var(--articulo-radius);
  box-shadow: var(--articulo-shadow);
  border-left: 4px solid var(--articulo-accent);
}

.joint-reserve-card h3 {
  font-size: 1.3rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.joint-reserve-card p {
  color: var(--articulo-ink-dim);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.joint-reserve-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.joint-reserve-bullet-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.joint-reserve-bullet-dot {
  width: 8px;
  height: 8px;
  background-color: var(--articulo-accent);
  border-radius: 50%;
}

/* Form Container */
.joint-form-box {
  background: var(--articulo-surface);
  border-radius: var(--articulo-radius);
  padding: 3.5rem;
  box-shadow: var(--articulo-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-form-h3 {
  font-size: 1.8rem;
  color: #fff;
  margin-bottom: 2rem;
  text-align: center;
}

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

.joint-form-label {
  display: block;
  color: var(--articulo-ink-dim);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.joint-form-input,
.joint-form-textarea {
  width: 100%;
  background-color: var(--articulo-bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: var(--articulo-ink);
  font-family: var(--font-body);
  transition: border-color 0.3s;
}

.joint-form-input:focus,
.joint-form-textarea:focus {
  outline: none;
  border-color: var(--articulo-accent);
}

.joint-form-checkbox-label {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.85rem;
  color: var(--articulo-ink-dim);
  cursor: pointer;
  margin-top: 1rem;
}

.joint-form-checkbox-label input {
  margin-top: 3px;
}

.joint-form-submit {
  width: 100%;
  margin-top: 2rem;
}

.joint-contact-mailto {
  display: block;
  text-align: center;
  margin-top: 2rem;
  color: var(--articulo-accent);
  font-weight: 600;
}

/* FAQ Styling */
.joint-faq-sec {
  padding: 16dvh 2rem;
  background-color: var(--articulo-surface-alt);
}

.joint-faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.joint-faq-h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  text-align: center;
  margin-bottom: 4rem;
}

.joint-faq-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.joint-faq-item {
  background: var(--articulo-surface);
  border-radius: var(--articulo-radius);
  padding: 2rem;
  box-shadow: var(--articulo-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-faq-q {
  font-size: 1.25rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.joint-faq-a {
  color: var(--articulo-ink-dim);
  font-size: 1rem;
}

/* Static legal templates, thank you */
.joint-static-sec {
  padding: 16dvh 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.joint-static-h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: #fff;
  margin-bottom: 2rem;
}

.joint-static-p {
  color: var(--articulo-ink-dim);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.joint-thank-box {
  text-align: center;
  max-width: 700px;
  margin: 10dvh auto;
  padding: 4rem;
  background: var(--articulo-surface);
  border-radius: var(--articulo-radius);
  box-shadow: var(--articulo-shadow);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.joint-thank-img {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 50%;
  margin: 0 auto 2rem;
  border: 4px solid var(--articulo-accent);
}

/* Media Queries for Responsive Design */
@media (max-width: 1024px) {
  .joint-scroll-track {
    grid-template-columns: 1fr;
  }
  .joint-expert-grid {
    grid-template-columns: 1fr;
  }
  .joint-reserve-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .joint-reserve-sticky-col {
    position: static;
  }
}

@media (max-width: 768px) {
  .joint-hamburger-icon {
    display: flex;
  }
  
  .joint-nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--articulo-surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    transition: right 0.4s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  }

  .joint-hamburger-toggle:checked ~ .joint-nav-links {
    right: 0;
  }

  .joint-hamburger-toggle:checked ~ .joint-hamburger-icon span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

  .joint-hamburger-toggle:checked ~ .joint-hamburger-icon span:nth-child(2) {
    opacity: 0;
  }

  .joint-hamburger-toggle:checked ~ .joint-hamburger-icon span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .joint-feat-matrix {
    grid-template-columns: 1fr;
  }

  .joint-stepper-line {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .joint-stepper-line::before {
    display: none;
  }

  .joint-cta-inner {
    text-align: center;
    justify-content: center;
  }
}

/* Animations using view() */
@keyframes slide-reveal {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.joint-scroll-card,
.joint-feat-node,
.joint-stepper-node,
.joint-expert-grid,
.joint-reserve-grid,
.joint-faq-item,
.joint-cta-banner {
  animation: slide-reveal 1s linear both;
  animation-timeline: view();
  animation-range: entry 0% entry 30%;
}