/* SUMA Landing Page - Dark Theme */

:root {
  --suma-charcoal: #2d3640;
  --suma-dark: #1e252c;
  --suma-darker: #151a1f;
  --suma-cyan: #00e5d0;
  --suma-cyan-dark: #00b8a8;
  --suma-white: #ffffff;
  --suma-gray-100: #f1f5f9;
  --suma-gray-200: #e2e8f0;
  --suma-gray-300: #cbd5e1;
  --suma-gray-400: #94a3b8;
  --suma-gray-500: #64748b;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background: var(--suma-dark);
  color: var(--suma-gray-100);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(30, 37, 44, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--suma-white);
}

.logo-icon {
  height: 180px;
  width: auto;
  object-fit: contain;
  margin: -20px 0;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--suma-gray-300);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--suma-white);
}

.nav-cta-login {
  border: 1.5px solid var(--suma-cyan);
  color: var(--suma-cyan) !important;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}

.nav-cta-login:hover {
  background: var(--suma-cyan);
  color: var(--suma-darker) !important;
}

.nav-cta {
  background: var(--suma-cyan);
  color: var(--suma-darker) !important;
  padding: 0.625rem 1.25rem;
  border-radius: 6px;
  font-weight: 600;
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--suma-cyan-dark);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  gap: 4rem;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-headline {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--suma-white);
}

.hero-subheadline {
  font-size: 1.25rem;
  color: var(--suma-gray-300);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.hero-trust {
  font-size: 0.875rem;
  color: var(--suma-cyan);
  margin-bottom: 2.5rem;
  font-weight: 500;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: var(--suma-cyan);
  color: var(--suma-darker);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--suma-cyan-dark);
  transform: translateY(-2px);
}

.btn-primary.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--suma-white);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--suma-gray-500);
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--suma-cyan);
  color: var(--suma-cyan);
}

/* Hero Visual */
.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.unification-system {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
  max-width: 480px;
}

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

.system-block {
  aspect-ratio: 1;
  border-radius: 16px;
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.system-block .block-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  padding: 1.5rem;
  padding-top: 1.75rem;
  text-align: center;
}

.system-block .block-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--suma-white);
  margin-bottom: 0.5rem;
  transition: all 0.3s;
}

.system-block .block-desc {
  font-size: 0.75rem;
  color: var(--suma-gray-400);
  line-height: 1.5;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s;
}

.system-block:hover .block-desc {
  opacity: 1;
  transform: translateY(0);
}

.system-block:hover .block-title {
  color: var(--suma-cyan);
}

.system-block.block-1 {
  background: var(--suma-cyan);
  border-color: var(--suma-cyan);
}

.system-block.block-1 .block-title {
  color: var(--suma-darker);
}

.system-block.block-1 .block-desc {
  color: rgba(30, 37, 44, 0.8);
}

.system-block.block-1:hover {
  transform: scale(1.02);
  box-shadow: 0 0 40px rgba(0, 229, 208, 0.4);
}

.system-block.block-1:hover .block-title {
  color: var(--suma-darker);
}

.system-block.block-2 {
  background: var(--suma-charcoal);
}

.system-block.block-2:hover {
  border-color: rgba(0, 229, 208, 0.4);
  background: linear-gradient(135deg, var(--suma-charcoal) 0%, rgba(0, 229, 208, 0.08) 100%);
}

.system-block.block-3 {
  background: var(--suma-charcoal);
}

.system-block.block-3:hover {
  border-color: rgba(0, 229, 208, 0.4);
  background: linear-gradient(135deg, var(--suma-charcoal) 0%, rgba(0, 229, 208, 0.08) 100%);
}

.system-block.block-4 {
  background: var(--suma-cyan);
  border-color: var(--suma-cyan);
}

.system-block.block-4 .block-title {
  color: var(--suma-darker);
}

.system-block.block-4 .block-desc {
  color: rgba(30, 37, 44, 0.8);
}

.system-block.block-4:hover {
  transform: scale(1.02);
  box-shadow: 0 0 40px rgba(0, 229, 208, 0.4);
}

.system-block.block-4:hover .block-title {
  color: var(--suma-darker);
}

.system-tagline {
  text-align: center;
  padding-top: 1rem;
}

.system-tagline p {
  font-size: 0.9rem;
  color: var(--suma-gray-400);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.system-tagline .highlight {
  color: var(--suma-cyan);
  font-weight: 600;
}

.system-brand {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--suma-white);
  letter-spacing: 0.15em;
  margin-top: 0.5rem;
}

/* Mission & Vision */
.mission-vision {
  padding: 6rem 2rem;
  background: var(--suma-darker);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.mission-vision .section-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.mv-card {
  padding: 2.5rem;
  border-radius: 12px;
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.mv-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--suma-cyan);
  margin-bottom: 1rem;
}

.mv-text {
  font-size: 1.125rem;
  color: var(--suma-gray-200);
  line-height: 1.7;
}

/* Section Titles */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 0.75rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--suma-gray-400);
  text-align: center;
  margin-bottom: 4rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* How It Works */
.how-it-works {
  padding: 6rem 2rem;
  background: var(--suma-dark);
}

.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 200px;
  max-width: 240px;
  text-align: center;
  padding: 1.5rem;
}

.step-number {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--suma-cyan);
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
}

.step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  color: var(--suma-cyan);
}

.step-icon svg {
  width: 100%;
  height: 100%;
}

.step-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--suma-white);
  margin-bottom: 0.75rem;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--suma-gray-400);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  color: var(--suma-gray-500);
  padding-top: 4rem;
}

.step-connector svg {
  width: 24px;
  height: 24px;
}

/* Infraestructura Global */
.infraestructura-global {
  padding: 6rem 2rem;
  background: var(--suma-dark);
}

.infraestructura-global .section-title {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  font-size: 2rem;
}

.infra-content {
  max-width: 900px;
  margin: 0 auto;
}

.infra-text {
  text-align: center;
  margin-bottom: 3rem;
}

.infra-main {
  font-size: 1.1rem;
  color: var(--suma-gray-300);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.infra-secondary {
  font-size: 1rem;
  color: var(--suma-gray-400);
  line-height: 1.7;
}

.infra-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.infra-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  transition: all 0.3s;
}

.infra-list li:hover {
  border-color: rgba(0, 229, 208, 0.25);
  background: linear-gradient(135deg, var(--suma-charcoal) 0%, rgba(0, 229, 208, 0.05) 100%);
}

.infra-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--suma-cyan);
}

.infra-icon svg {
  width: 100%;
  height: 100%;
}

.infra-list li span {
  font-size: 0.95rem;
  color: var(--suma-white);
  font-weight: 500;
  line-height: 1.4;
}

/* Benefits */
.benefits {
  padding: 6rem 2rem;
  background: var(--suma-darker);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.benefit-card {
  padding: 2rem;
  border-radius: 12px;
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s;
}

.benefit-card:hover {
  border-color: rgba(0, 229, 208, 0.3);
  transform: translateY(-4px);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
  color: var(--suma-cyan);
}

.benefit-icon svg {
  width: 100%;
  height: 100%;
}

.benefit-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--suma-white);
  margin-bottom: 0.75rem;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--suma-gray-400);
  line-height: 1.6;
}

/* Protocolo ORIGEN */
.protocolo-origen {
  padding: 6rem 2rem;
  background: var(--suma-darker);
}

.protocolo-intro {
  font-size: 1.125rem;
  color: var(--suma-gray-300);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

.protocolo-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto 3rem;
  padding: 0;
  list-style: none;
}

.protocolo-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: rgba(0, 229, 208, 0.05);
  border: 1px solid rgba(0, 229, 208, 0.15);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--suma-white);
  font-weight: 500;
}

.protocolo-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--suma-cyan);
  border-radius: 50%;
  flex-shrink: 0;
}

.protocolo-closing {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--suma-cyan);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

/* Final CTA */
.final-cta {
  padding: 8rem 2rem;
  background: var(--suma-dark);
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.125rem;
  color: var(--suma-gray-400);
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* FAQ Section */
.faq-section {
  padding: 6rem 2rem;
  background: var(--suma-dark);
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: rgba(0, 229, 208, 0.2);
}

.faq-item.active {
  border-color: rgba(0, 229, 208, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--suma-white);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  line-height: 1.5;
  gap: 1rem;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--suma-cyan);
  transition: transform 0.3s;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
}

.faq-answer-content {
  padding: 0 1.5rem 1.5rem;
  color: var(--suma-gray-300);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-answer-content p {
  margin-bottom: 1rem;
}

.faq-answer-content p:last-child {
  margin-bottom: 0;
}

.faq-answer-content ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.faq-answer-content ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.faq-answer-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--suma-cyan);
  border-radius: 50%;
}

/* Footer */
.landing-footer {
  padding: 3rem 2rem;
  background: var(--suma-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--suma-white);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.footer-logo .logo-icon {
  width: 16px;
  height: 32px;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--suma-gray-500);
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--suma-gray-400);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--suma-cyan);
}

.footer-copy {
  width: 100%;
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 1rem;
}

.footer-copy p {
  font-size: 0.8rem;
  color: var(--suma-gray-500);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 6rem;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: 2rem;
  }
  
  .unification-system {
    max-width: 320px;
  }
  
  .system-block .block-title {
    font-size: 0.85rem;
  }
  
  .system-block .block-desc {
    display: none;
  }
  
  .system-block:hover {
    transform: none;
  }
  
  .system-tagline p {
    font-size: 0.8rem;
  }
  
  .system-brand {
    font-size: 1.2rem;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .steps-grid {
    flex-direction: column;
    align-items: center;
  }
  
  .step {
    max-width: 100%;
  }
  
  .step-connector {
    transform: rotate(90deg);
    padding: 1rem 0;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
  }
  
  .footer-legal {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* What is SUMA Section */
.what-is-suma {
  padding: 6rem 2rem;
  background: var(--suma-dark);
}

.suma-definition {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.suma-main-text {
  font-size: 2rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 1.5rem;
}

.suma-sub-text {
  font-size: 1.25rem;
  color: var(--suma-gray-300);
  line-height: 1.8;
}

/* Hero Support Line */
.hero-support {
  font-size: 1rem;
  color: var(--suma-gray-400);
  margin-bottom: 1rem;
  max-width: 500px;
}

/* Entrepreneurs Section */
.entrepreneurs {
  padding: 6rem 2rem;
  background: var(--suma-charcoal);
}

.entrepreneurs-content {
  max-width: 800px;
  margin: 0 auto;
}

.entrepreneurs-intro {
  text-align: center;
  margin-bottom: 2rem;
}

.entrepreneurs-headline {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 0.5rem;
}

.entrepreneurs-subheadline {
  font-size: 1.5rem;
  color: var(--suma-cyan);
  font-weight: 600;
}

.entrepreneurs-description {
  font-size: 1.125rem;
  color: var(--suma-gray-200);
  line-height: 1.8;
  text-align: center;
  margin-bottom: 3rem;
}

.entrepreneurs-benefits {
  background: var(--suma-dark);
  padding: 2rem;
  border-radius: 12px;
  margin-bottom: 2rem;
}

.entrepreneurs-benefits h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--suma-cyan);
  margin-bottom: 1.5rem;
}

.entrepreneurs-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.entrepreneurs-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  font-size: 1.125rem;
  color: var(--suma-gray-200);
}

.entrepreneurs-list li:last-child {
  margin-bottom: 0;
}

.entrepreneurs-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--suma-cyan);
  border-radius: 50%;
}

.entrepreneurs-closing {
  font-size: 1.25rem;
  color: var(--suma-gray-300);
  text-align: center;
  line-height: 1.8;
}

.entrepreneurs-closing strong {
  color: var(--suma-white);
}

@media (max-width: 480px) {
  .section-title {
    font-size: 2rem;
  }
  
  .hero-headline {
    font-size: 2rem;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
  }
  
  .hero-ctas {
    flex-direction: column;
  }
  
  .entrepreneurs-headline {
    font-size: 1.75rem;
  }
  
  .entrepreneurs-subheadline {
    font-size: 1.25rem;
  }
  
  .suma-main-text {
    font-size: 1.5rem;
  }
  
  .form-row {
    flex-direction: column;
  }
  
  .contact-form-container {
    padding: 1.5rem;
  }
}

/* Contact Form Section */
.contact-section {
  padding: 6rem 2rem;
  background: var(--suma-dark);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--suma-gray-400);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.contact-form-container {
  max-width: 700px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 2.5rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: flex;
  gap: 1.5rem;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  width: 100%;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--suma-gray-300);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--suma-white);
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--suma-gray-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--suma-cyan);
  background: rgba(0, 229, 208, 0.05);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group select option {
  background: var(--suma-darker);
  color: var(--suma-white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-actions {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.contact-status {
  text-align: center;
  padding: 1rem;
  border-radius: 8px;
  display: none;
}

.contact-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.contact-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

#contact-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================
   MOBILE RESPONSIVE ENHANCEMENTS
   ============================================ */

/* --- Hamburger Menu Toggle --- */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
}

.hamburger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--suma-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

  .nav-container {
    padding: 0.25rem 1rem;
  }

  .logo-icon {
    height: 100px;
    margin: -12px 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 37, 44, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    z-index: 999;
    padding: 2rem;
  }

  .nav-links.mobile-open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.15rem;
    padding: 0.75rem 1.5rem;
    width: 100%;
    text-align: center;
    border-radius: 8px;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-cta-login,
  .nav-cta {
    width: 100%;
    text-align: center;
    padding: 0.875rem 1.5rem !important;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* --- Landing page section spacing mobile --- */
@media (max-width: 480px) {
  .logo-icon {
    height: 70px;
    margin: -8px 0;
  }

  .hero {
    padding: 5rem 1rem 2rem;
    gap: 2rem;
  }

  .hero-subheadline {
    font-size: 1rem;
  }

  .hero-support {
    font-size: 0.9rem;
  }

  .what-is-suma {
    padding: 3rem 1rem;
  }

  .suma-sub-text {
    font-size: 1rem;
  }

  .entrepreneurs {
    padding: 3rem 1rem;
  }

  .entrepreneurs-description {
    font-size: 1rem;
  }

  .entrepreneurs-list li {
    font-size: 1rem;
  }

  .entrepreneurs-benefits {
    padding: 1.25rem;
  }

  .entrepreneurs-closing {
    font-size: 1.05rem;
  }

  .contact-section {
    padding: 3rem 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }
}

/* Market Problem Section */
.market-problem {
  padding: 6rem 2rem;
  background: var(--suma-darker);
  text-align: center;
}

.mp-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 1rem;
  line-height: 1.3;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.mp-subtitle {
  font-size: 1.1rem;
  color: var(--suma-gray-400);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.mp-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.mp-column {
  background: var(--suma-charcoal);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: border-color 0.3s;
}

.mp-column:hover {
  border-color: rgba(0, 229, 208, 0.3);
}

.mp-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1.25rem;
  color: var(--suma-gray-400);
}

.mp-icon svg {
  width: 100%;
  height: 100%;
}

.mp-point {
  font-size: 1rem;
  color: var(--suma-gray-300);
  line-height: 1.6;
}

.mp-closing {
  max-width: 600px;
  margin: 0 auto;
}

.mp-closing-text {
  font-size: 1.1rem;
  color: var(--suma-gray-400);
  margin-bottom: 0.5rem;
}

.mp-closing-highlight {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--suma-cyan);
}

/* Structural Comparison Section */
.structural-comparison {
  padding: 6rem 2rem;
  background: var(--suma-dark);
  text-align: center;
}

.sc-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 0.5rem;
}

.sc-subtitle {
  font-size: 1.2rem;
  color: var(--suma-cyan);
  font-weight: 500;
  margin-bottom: 3rem;
}

.sc-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}

.sc-column {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.sc-traditional {
  background: var(--suma-charcoal);
}

.sc-suma {
  background: var(--suma-charcoal);
  border-color: rgba(0, 229, 208, 0.3);
}

.sc-column-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sc-column-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--suma-white);
  margin-bottom: 0;
}

.sc-suma .sc-column-header {
  border-bottom-color: rgba(0, 229, 208, 0.15);
}

.sc-suma-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--suma-cyan);
  letter-spacing: 0.05em;
  margin-top: 0.35rem;
}

.sc-items {
  padding: 1rem 2rem;
}

.sc-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.sc-item-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.sc-item-icon svg {
  width: 100%;
  height: 100%;
}

.sc-icon-negative {
  color: #e74c3c;
}

.sc-icon-positive {
  color: var(--suma-cyan);
}

.sc-item-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--suma-white);
  margin-bottom: 0.2rem;
}

.sc-item-content p {
  font-size: 0.85rem;
  color: var(--suma-gray-400);
  line-height: 1.5;
}

.sc-column-footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.sc-column-footer p {
  font-size: 0.9rem;
  color: var(--suma-gray-400);
  font-style: italic;
}

.sc-suma .sc-column-footer {
  border-top-color: rgba(0, 229, 208, 0.15);
}

.sc-suma .sc-column-footer p {
  color: var(--suma-cyan);
  font-style: normal;
  font-weight: 500;
}

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

  .mp-title {
    font-size: 1.5rem;
  }

  .mp-closing-highlight {
    font-size: 1.15rem;
  }

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

  .sc-title {
    font-size: 1.5rem;
  }

  .market-problem,
  .structural-comparison {
    padding: 3rem 1rem;
  }
}

/* --- Touch targets for landing --- */
@media (max-width: 768px) {
  .btn-primary,
  .btn-secondary,
  .nav-cta-login,
  .nav-cta {
    min-height: 48px;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    min-height: 48px;
    font-size: 16px;
  }
}