body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  color: #1d1d1f;
  background: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1d1d1f;
}

.nav-link {
  color: #1d1d1f;
  font-size: 0.95rem;
  font-weight: 400;
  margin: 0 1rem;
  transition: color 0.3s;
}

.nav-link:hover {
  color: #06c;
}

/* Hero Section */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, #fff 0%, #f5f5f7 100%);
  padding: max(80px, 10vh) 20px max(40px, 5vh);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: clamp(1rem, 2vh, 1.5rem);
  line-height: 1.1;
}

.hero .subheadline {
  font-size: clamp(1.1rem, 2vw + 0.5rem, 1.75rem);
  font-weight: 400;
  color: #6e6e73;
  margin-bottom: clamp(1.5rem, 3vh, 2.5rem);
  line-height: 1.4;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.social-proof {
  margin-top: clamp(1.5rem, 3vh, 2rem);
  font-size: clamp(0.9rem, 1.2vw, 1rem);
  color: #6e6e73;
}

.social-proof span {
  font-weight: 600;
  color: #1d1d1f;
}

/* Sponsors Section */
.sponsors-section {
  background: #fafafa;
  padding: 40px 0;
  text-align: center;
  border-bottom: 1px solid #e8e8ed;
}

.sponsors-section p {
  font-size: 0.85rem;
  color: #86868b;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.sponsors-section img {
  max-height: 40px;
  opacity: 0.6;
  transition: opacity 0.3s;
  filter: grayscale(100%);
}

.sponsors-section img:hover {
  opacity: 0.9;
  filter: grayscale(0%);
}

.cta-primary {
  background: #06c;
  color: #fff !important;
  padding: clamp(12px, 1.5vh, 14px) clamp(30px, 4vw, 40px);
  border-radius: 980px;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 500;
  border: none;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
  margin: 0 10px;
}

.cta-primary:hover {
  background: #0077ed;
  transform: scale(1.02);
  color: #fff;
}

/* Section Styling */
section {
  padding: 100px 0;
}

.section-headline {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  line-height: 1.15;
}

.section-subheadline {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: #6e6e73;
  margin-bottom: 3rem;
  line-height: 1.5;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* What is Arc CMS Section */
.what-is-section {
  background: #fff;
  text-align: center;
}

.flow-diagram {
  max-width: 1200px;
  /* margin: 3rem auto; */
  margin-top: -3rem;
  border-radius: 18px;
  overflow: hidden;
  /* box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); */
}

.flow-diagram img {
  width: 100%;
  height: auto;
  display: block;
}

/* How It Works Section */
.how-it-works-section {
  background: #fff;
  text-align: center;
  position: relative;
}

.how-it-works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1400px;
  margin: 3rem auto;
  position: relative;
}

@media (max-width: 1024px) {
  .how-it-works-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.how-step-card {
  background: #fff;
  border-radius: 18px;
  padding: 2.5rem 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s;
  position: relative;
  border: 1px solid #e8e8ed;
}

.how-step-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 122, 255, 0.15);
  border-color: rgba(0, 122, 255, 0.3);
}

.step-number {
  position: absolute;
  top: -15px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #06c, #0077ed);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.how-step-card .icon {
  font-size: 3rem;
  color: #06c;
  margin-bottom: 1.5rem;
}

.how-step-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #1d1d1f;
}

.how-step-card p {
  color: #6e6e73;
  font-size: 1.05rem;
  line-height: 1.6;
}



/* Screenshots Section */
.screenshots-section {
  background: #f5f5f7;
  text-align: center;
}

.screenshot-tabs {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  gap: 1rem;
  margin: 3rem auto 2rem;
  max-width: 1400px;
  overflow-x: auto;
  padding: 1rem 2rem;
  scroll-behavior: smooth;
}

.tab-btn {
  position: relative;
  background: #fff;
  border: 1px solid #d2d2d7;
  padding: 0.75rem 1.5rem;
  border-radius: 980px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #1d1d1f;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
  overflow: hidden;
}

.tab-btn span {
  position: relative;
  z-index: 2;
}

.tab-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: #06c;
  width: 0%;
  transition: width 0.1s linear;
}

.tab-btn:hover {
  background: #f5f5f7;
  border-color: #06c;
}

.tab-btn.active {
  background: #06c;
  color: #fff;
  border-color: #06c;
}

.tab-btn.active .tab-progress-bar {
  background: #fff;
  animation: progressBarAnimation 5s linear forwards;
}

@keyframes progressBarAnimation {
  from {
    width: 0%;
  }

  to {
    width: 100%;
  }
}

.tab-content-container {
  max-width: 1200px;
  margin: 3rem auto;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #1d1d1f;
}

.tab-description {
  font-size: 1.2rem;
  color: #6e6e73;
  max-width: 800px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.tab-image {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
}

.tab-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Problem Section */
.problem-section {
  background: #fff;
  text-align: center;
}

.problem-list {
  max-width: 700px;
  margin: 3rem auto;
  text-align: left;
}

.problem-item {
  font-size: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid #d2d2d7;
  color: #1d1d1f;
}

.problem-item:last-child {
  border-bottom: none;
}

.problem-item strong {
  color: #d60000;
  font-weight: 600;
}

.problem-item.solution strong {
  color: #d60000;
}

.problem-item.solution .free {
  color: #34c759;
}

.problem-item.solution .cheap {
  color: #06c;
}

.problem-item.solution span {
  color: #86868b;
  font-size: 0.9rem;
}

.problem-total {
  font-size: 2.5rem;
  font-weight: 700;
  color: #d60000;
  margin-top: 2rem;
}

/* Solution Section */
.solution-section {
  background: linear-gradient(135deg, #f5f7fa 0%, #e8f0fe 100%);
  color: #1d1d1f;
  text-align: center;
}

.solution-section .section-headline {
  color: #1d1d1f;
}

.solution-section .section-subheadline {
  color: #6e6e73;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 3rem auto;
}

.solution-item {
  background: #fff;
  backdrop-filter: blur(10px);
  border-radius: 18px;
  padding: 2rem;
  transition: transform 0.3s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.solution-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.solution-item .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #06c;
}

.solution-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #1d1d1f;
}

.solution-item p {
  color: #6e6e73;
}

/* Features Section */
.features-section {
  background: #f5f5f7;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 3rem auto;
}

.feature-card {
  background: #fff;
  border-radius: 18px;
  padding: 2.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.feature-card .icon {
  font-size: 3rem;
  color: #06c;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.feature-card p {
  color: #6e6e73;
  font-size: 1.05rem;
}

/* Latest Updates Section */
.updates-section {
  background: #f5f5f7;
  padding: 100px 0;
}

.updates-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.updates-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
}

.view-all-link {
  color: #06c;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s;
}

.view-all-link:hover {
  gap: 0.8rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.article-card {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.article-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.article-content {
  padding: 1.5rem;
}

.article-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: #86868b;
  margin-bottom: 1rem;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #1d1d1f;
}

.article-excerpt {
  font-size: 0.95rem;
  color: #6e6e73;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.article-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.article-tag {
  background: #e8f4ff;
  color: #06c;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Ownership Section */
.ownership-section {
  background: #fff;
  text-align: center;
}

.ownership-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1400px;
  margin: 3rem auto;
}

@media (max-width: 1024px) {
  .ownership-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.ownership-item {
  padding: 2rem;
}

.ownership-item .icon {
  font-size: 3rem;
  color: #06c;
  margin-bottom: 1.5rem;
}

.ownership-item h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.ownership-item p {
  color: #6e6e73;
  font-size: 1.1rem;
}

/* Founding Circle Section */
.founding-circle-section {
  background: linear-gradient(135deg, #1d1d1f 0%, #2d2d2f 100%);
  color: #fff;
  padding: 120px 0;
}

.fc-header {
  text-align: center;
  margin-bottom: 4rem;
}

.fc-badge {
  display: inline-block;
  background: rgba(0, 122, 255, 0.2);
  color: #06c;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 122, 255, 0.3);
}

.fc-header h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.fc-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.8);
}

.fc-progress-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 2.5rem;
  margin-bottom: 4rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.fc-progress-numbers {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.fc-filled {
  font-size: 4rem;
  font-weight: 700;
  color: #06c;
}

.fc-separator {
  font-size: 3rem;
  color: rgba(255, 255, 255, 0.3);
}

.fc-total {
  font-size: 4rem;
  font-weight: 700;
}

.fc-label {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 1rem;
}

.fc-progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.fc-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #06c, #0077ed);
  border-radius: 4px;
  transition: width 0.5s ease;
}

.fc-content-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 3rem;
}

.fc-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.fc-benefit-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: 18px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s;
}

.fc-benefit-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-5px);
  border-color: rgba(0, 122, 255, 0.3);
}

.fc-benefit-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #06c;
}

.fc-benefit-icon i {
  display: block;
}

.fc-benefit-card h4 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.fc-benefit-card p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

.fc-form-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  position: sticky;
  top: 100px;
}

.fc-form-card h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
}

.fc-form-group {
  margin-bottom: 1.25rem;
}

.fc-form-group input {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 1rem;
  transition: all 0.3s;
}

.fc-form-group input:focus {
  outline: none;
  border-color: #06c;
  background: rgba(255, 255, 255, 0.1);
}

.fc-form-group input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.fc-submit-btn {
  width: 100%;
  background: #06c;
  color: #fff;
  padding: 1.1rem;
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 2rem;
}

.fc-submit-btn:hover {
  background: #0077ed;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 122, 255, 0.3);
}

.fc-form-footer {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.fc-commitment {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.75rem;
}

.fc-perfect-for {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.fc-perfect-for p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

.fc-perfect-for strong {
  color: #fff;
}

/* Contact Section */
.contact-section {
  background: #f5f5f7;
  text-align: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 3rem auto;
}

.contact-card {
  background: #fff;
  border-radius: 18px;
  padding: 2.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  text-align: left;
}

.contact-card h3 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.contact-card p {
  color: #6e6e73;
  margin-bottom: 1.5rem;
}

.contact-card ul {
  list-style: none;
  padding: 0;
}

.contact-card li {
  padding: 0.5rem 0;
  color: #1d1d1f;
  font-size: 1rem;
}

.contact-card li::before {
  content: "•";
  color: #06c;
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

.exclusive-note {
  background: linear-gradient(135deg, #f5f7fa 0%, #e8f0fe 100%);
  color: #06c;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  border: 1px solid rgba(0, 122, 255, 0.1);
}

.exclusive-note i {
  font-size: 1rem;
}

.exclusive-note span {
  line-height: 1.4;
}

.contact-email {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.1rem;
  color: #06c;
  margin-top: 2rem;
}

.contact-social {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.social-link {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #06c;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: all 0.3s;
}

.social-link:hover {
  background: #0077ed;
  transform: scale(1.1);
  color: #fff;
}

/* Footer */
footer {
  background: #1d1d1f;
  color: #f5f5f7;
  text-align: center;
  padding: 3rem 0;
}

footer a {
  color: #f5f5f7;
  text-decoration: none;
  transition: color 0.3s;
}

footer a:hover {
  color: #06c;
}

.footer-coming-soon {
  font-size: 0.8rem;
  color: #86868b;
}

.heart-icon {
  color: #ff3b30;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }
}

/* What is Arc CMS - Superpowers Section */
.what-is-content {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

.pain-point {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 0.5rem;
}

.pain-detail {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: #6e6e73;
  margin-bottom: 2.5rem;
}

.superpowers-intro {
  font-size: 1.2rem;
  color: #1d1d1f;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.superpowers-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.superpower-item {
  font-size: 1.15rem;
  color: #1d1d1f;
  line-height: 1.5;
  padding: 0.75rem 1rem;
  background: #f5f5f7;
  border-radius: 12px;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}

.superpower-item:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.superpower-item strong {
  color: #06c;
}

.growth-engine {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 0.5rem;
}

.cost-punch {
  font-size: 1.1rem;
  color: #6e6e73;
}

/* Founder's Paradox - Comparison Layout */
.problem-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1000px;
  margin: 3rem auto;
  align-items: stretch;
}

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

.traditional-stack,
.arc-solution {
  padding: 2.5rem;
  border-radius: 18px;
  text-align: left;
  display: flex;
  flex-direction: column;
}

.traditional-stack {
  background: #fff;
  border: 1px solid #e8e8ed;
}

.arc-solution {
  background: linear-gradient(135deg, #f5f7fa 0%, #e8f0fe 100%);
  border: 1px solid rgba(0, 122, 255, 0.2);
}

.traditional-stack h3,
.arc-solution h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #1d1d1f;
}

.stack-intro {
  font-size: 1rem;
  color: #6e6e73;
  margin-bottom: 1.5rem;
}

.solution-list {
  margin-bottom: 1.5rem;
}

.solution-item {
  font-size: 1.1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 122, 255, 0.1);
  color: #1d1d1f;
}

.solution-item:last-child {
  border-bottom: none;
}

.solution-item span {
  color: #6e6e73;
  font-size: 0.95rem;
}

.solution-item .free {
  color: #34c759;
  font-weight: 700;
}

.solution-item .cheap {
  color: #06c;
  font-weight: 700;
}

.solution-total {
  font-size: 2.5rem;
  font-weight: 700;
  color: #06c;
  margin: 1.5rem 0 1rem;
}

.stack-pain {
  font-size: 1rem;
  color: #6e6e73;
  font-style: italic;
  margin-top: 1.5rem;
}

.solution-punch {
  font-size: 1.1rem;
  color: #1d1d1f;
  margin-top: auto;
  padding-top: 1rem;
}

.solution-punch strong {
  color: #06c;
}

/* Responsive */
@media (max-width: 768px) {
  .founding-circle-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .fc-content-grid {
    grid-template-columns: 1fr;
  }

  .fc-benefits {
    grid-template-columns: 1fr;
  }

  .fc-form-card {
    position: static;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }

  .updates-header {
    flex-direction: column;
    align-items: start;
    gap: 1rem;
  }
}