:root {
      --primary: #1a1a1a;
      --primary-light: #2d2d2d;
      --accent: #800020;
      --accent-dark: #600018;
      --accent-light: #a0002a;
      --text-dark: #1a1a1a;
      --text-light: #666666;
      --bg-light: #f9f9f9;
      --bg-dark: #1a1a1a;
      --white: #ffffff;
      --success: #800020;
      --border: #e0e0e0;

      --ark-primary: #800020;
      --ark-bg: #f8fafc;
      --ark-card: #ffffff;
      --ark-text: #0f172a;
      --ark-muted: #646669;
      --ark-border: #600018;
    }


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

    body {
      font-family: 'Inter', sans-serif;
      color: var(--text-dark);
      line-height: 1.6;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header */
    header {
      background: var(--white);
      border-bottom: 1px solid var(--border);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 100;
    }

    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 24px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text-light);
      font-weight: 500;
      font-size: 15px;
      transition: color 0.3s;
    }

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

    .nav-buttons {
      display: flex;
      gap: 12px;
    }

    .btn {
      padding: 12px 24px;
      border-radius: 10px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.3s;
      cursor: pointer;
      border: none;
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-flot
     { 
      background: var(--accent); 
      color: var(--white); 
    } 

    .btn-flot:hover
     { 
      border-color: var(--accent-dark); 
      color: var(--white); 
      transform: translateY(-2px); 
    } 

    .btn-contact{
      transition: all 0.25s ease;
      color: var(--white);
      background: var(--accent);
    }

   .btn-contact:hover {
      transform: translateY(-2px);
    }
    .btn-primary {
      border: 1px solid rgba(255, 255, 255, 0.5);
      transition: all 0.25s ease;
      color: var(--text-dark);
      background: var(--white);
    }

    .btn-primary:hover {
      color: var(--accent);
      transform: translateY(-1px);

      border-color: rgba(255, 255, 255, 0.9);
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.8),
        0 8px 20px rgba(255, 255, 255, 0.25);
    }

    .btn-secondary {
      border: 1px solid rgba(255, 255, 255, 0.5);
      transition: all 0.25s ease;
      color: var(--white);
    }

    .btn-secondary:hover {
      color: var(--white);
      transform: translateY(-1px);

      border-color: rgba(255, 255, 255, 0.9);
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.8),
        0 8px 20px rgba(255, 255, 255, 0.25);
    }

    /* Hero */
    .hero {
      padding: 150px 20px 120px;
      position: relative;
      overflow: hidden;
      color: var(--white);

      background:
        linear-gradient(
          135deg,
          var(--accent-dark) 0%,
          var(--accent) 50%,
          #2a060f 10%
        );
}

    /* Hero gradient uses burgundy tint */
   .hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -15%;
    width: 70%;
    height: 120%;
    background:
      radial-gradient(
        circle at 70% 30%,
        rgba(160, 0, 42, 0.18),
        transparent 65%
      );
    pointer-events: none;
  }
    .hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background:
        linear-gradient(
          to bottom,
          transparent 60%,
          rgba(0, 0, 0, 0.25)
        );
      pointer-events: none;
    }
    .hero .container {
      display: flex;
      align-items: center;
      text-align: center;
      gap: 80px;
      position: relative;
    }

    .hero-content {
      flex: 1;
      text-align: center;
      
    }

    .hero h1 {
      font-size: 52px;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 24px;
      line-height: 1.1;
      letter-spacing: -1px;
    }

    .hero h1 .highlight {
      color: var(--white);
    }

    .hero p {
      font-size: 18px;
      color: var(--white);
      line-height: 1.7;
    }

    .hero-buttons {
      display: flex;
      gap: 16px;
      margin-bottom: 15px;
    }

    .hero-note {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 14px;
      color: var(--white);
    }

    .hero-note span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-note svg {
      width: 16px;
      height: 16px;
      color: var(--white);
    }

    .hero-image {
      flex: 1;
      display: flex;
      justify-content: center;
      position: relative;
    }

    .features {
      padding: 100px 24px;
      background: var(--white);
    }

    .section-header {
      text-align: center;
      max-width: 700px;
      margin: 0 auto 30px;
    }

    .section-tag {
      display: inline-block;
      background: rgba(128, 0, 32, 0.1);
      color: var(--accent);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    /* Type card accents use burgundy */
    .type-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--accent);
    }

    .type-card.crypto::before {
      background: linear-gradient(90deg, #1a1a1a, #333333);
    }

    .type-badge {
      display: inline-block;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 20px;
    }

    .type-card.ses .type-badge {
      background: rgba(128, 0, 32, 0.1);
      color: var(--accent);
    }

    .type-card.crypto .type-badge {
      background: rgba(26, 26, 26, 0.1);
      color: var(--primary);
    }

    .type-card h3 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .type-card > p {
      color: var(--text-light);
      font-size: 16px;
      line-height: 1.7;
      margin-bottom: 28px;
    }

    .type-features {
      list-style: none;
    }

    .type-features li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--border);
      font-size: 15px;
    }

    .type-features li:last-child {
      border-bottom: none;
    }

    .type-features svg {
      width: 20px;
      height: 20px;
      color: var(--accent);
      flex-shrink: 0;
      margin-top: 2px;
    }

    .how-it-works {
      padding: 100px 24px;
      background: var(--white);
    }

    .steps-container {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      margin-top: 60px;
      position: relative;
    }

    .steps-container::before {
      content: '';
      position: absolute;
      top: 40px;
      left: 80px;
      right: 80px;
      height: 2px;
      background: var(--border);
    }

    .step {
      flex: 1;
      text-align: center;
      position: relative;
    }

    .step-number {
      width: 80px;
      height: 80px;
      background: var(--white);
      border: 2px solid var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      font-weight: 800;
      color: var(--accent);
      margin: 0 auto 24px;
      position: relative;
      z-index: 1;
    }

    .step h3 {
      font-size: 18px;
      margin-bottom: 10px;
      font-weight: 700;
    }

    .step p {
      color: var(--text-light);
      font-size: 15px;
      max-width: 220px;
      margin: 0 auto;
      line-height: 1.6;
    }

    /* Security */
    .security {
      padding: 100px 24px;
      background: var(--bg-dark);
      color: var(--white);
    }

    .security .section-header {
      color: white;
    }

    .security .section-tag {
      background: rgba(128, 0, 32, 0.3);
      color: #ff6b8a;
    }

    .security .section-title {
      color: white;
    }

    .security .section-subtitle {
      color: #999999;
    }

    .security-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 24px;
      margin-top: 60px;
    }

    .security-item {
      background: var(--primary-light);
      border-radius: 16px;
      padding: 28px;
      text-align: center;
      border: 1px solid rgba(255,255,255,0.1);
    }

    .security-item svg {
      width: 40px;
      height: 40px;
      color: var(--accent);
      margin-bottom: 16px;
    }

    .security-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .security-item p {
      color: #999999;
      font-size: 14px;
      line-height: 1.5;
    }

    .certifications {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-top: 50px;
      flex-wrap: wrap;
    }

    .cert-badge {
      background: rgba(128, 0, 32, 0.3);
      padding: 14px 28px;
      border-radius: 10px;
      font-weight: 700;
      color: white;
      border: 1px solid rgba(128, 0, 32, 0.5);
      font-size: 14px;
    }

    /* Contact */
    .contact {
      padding: 100px 24px;
      background: var(--bg-light);
    }

    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: start;
    }

    .contact-info h2 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .contact-info > p {
      color: var(--text-light);
      font-size: 17px;
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .contact-details {
      list-style: none;
    }

    .contact-details li {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 0;
      border-bottom: 1px solid var(--border);
    }

    .contact-details li:last-child {
      border-bottom: none;
    }

    .contact-details svg {
      width: 24px;
      height: 24px;
      color: var(--accent);
    }

    .contact-details span {
      font-size: 16px;
      color: var(--text-dark);
    }

    .contact-form {
      background: var(--white);
      padding: 40px;
      border-radius: 20px;
      box-shadow: 0 10px 50px rgba(0,0,0,0.08);
      border: 1px solid var(--border);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 14px;
      color: var(--text-dark);
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
      width: 100%;
      padding: 14px 18px;
      border: 1px solid var(--border);
      border-radius: 10px;
      font-size: 15px;
      font-family: inherit;
      transition: all 0.3s;
      background: var(--white);
    }

    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(128, 0, 32, 0.1);
    }

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

    .error-message {
      color: #dc2626;
      font-size: 13px;
      margin-top: 6px;
      display: none;
    }

    .form-group.error input,
    .form-group.error textarea,
    .form-group.error select {
      border-color: #dc2626;
    }

    .form-group.error .error-message {
      display: block;
    }

    /* Success message uses burgundy */
    .success-message {
      background: rgba(128, 0, 32, 0.1);
      color: var(--accent);
      padding: 16px;
      border-radius: 10px;
      text-align: center;
      margin-bottom: 20px;
      display: none;
      font-weight: 500;
    }

    .success-message.show {
      display: block;
    }

    /* CTA */
    .cta {
      padding: 100px 24px;
      background: var(--white);
      text-align: center;
    }

    .cta-content {
      max-width: 700px;
      margin: 0 auto;
    }

    .cta h2 {
      font-size: 40px;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .cta p {
      color: var(--text-light);
      font-size: 18px;
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
    }

    /* Footer */
    footer {
      background: var(--bg-dark);
      color: var(--white);
      padding: 60px 24px 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 60px;
      margin-bottom: 50px;
    }

    .footer-brand h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-brand h3 span {
      color: var(--accent);
      font-weight: 800;
    }

    .footer-brand p {
      color: #999999;
      font-size: 15px;
      line-height: 1.7;
    }

    .footer-column h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 20px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

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

    .footer-column li {
      margin-bottom: 12px;
    }

    .footer-column a {
      color: #999999;
      text-decoration: none;
      font-size: 15px;
      transition: color 0.3s;
    }

    .footer-column a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 30px;
      border-top: 1px solid rgba(255,255,255,0.1);
    }

    .footer-bottom p {
      color: #666666;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      gap: 24px;
    }

    .footer-links a {
      color: #666666;
      text-decoration: none;
      font-size: 14px;
      transition: color 0.3s;
    }

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

    /* Mobile Menu */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn svg {
      width: 28px;
      height: 28px;
      color: var(--text-dark);
    }

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

      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
      }
    }

    @media (max-width: 768px) {
      .nav-links,
      .nav-buttons {
        display: none;
      }

      .mobile-menu-btn {
        display: block;
      }

      .hero {
        padding: 120px 24px 60px;
      }

      .hero .container {
        flex-direction: column;
        text-align: center;
        gap: 40px;
      }

      .hero h1 {
        font-size: 36px;
      }

      .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
      }

      .hero-note {
        justify-content: center;
        flex-wrap: wrap;
      }

      .hero-mockup {
        width: 100%;
        max-width: 340px;
      }

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

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

      .steps-container {
        flex-direction: column;
        gap: 40px;
      }

      .steps-container::before {
        display: none;
      }

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

      .contact-wrapper {
        grid-template-columns: 1fr;
      }

      .cta h2 {
        font-size: 28px;
      }

      .cta-buttons {
        flex-direction: column;
        align-items: center;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
 }
  .logo {
    display: flex;
    align-items: center;      /* CENTRA verticalmente texto con la imagen */
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.0px;
    line-height: 1;           /* evita desalineación vertical */
    }

    /* Imagen del logo */
    .logo-img {
    margin-right: 10px;
    height: 50px;             /* accesible y balanceado */
    width: auto;
    display: block;
    }

    /* Color del span */
    .logo span {
    color: var(--accent);
    }

.ark-section {
  padding: 6rem 1.5rem;
  background: var(--ark-bg);
}

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

.ark-header {
  max-width: 620px;
  margin-bottom: 4rem;
}

.ark-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ark-primary);
  background: #e0e7ff;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.ark-header h2 {
  font-size: 2.25rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.ark-header p {
  color: var(--ark-muted);
  font-size: 1.05rem;
}

.ark-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.ark-card {
  background: var(--ark-card);
  border: 1px solid var(--ark-border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  justify-items: center;
}

.ark-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(245, 16, 54, 0.04),
    transparent
  );
  opacity: 0;
  transition: opacity 0.35s ease;
}

.ark-card:hover::before {
  opacity: 1;
}

.ark-card:hover {
  transform: translateY(-6px);
  border-color: var(--ark-primary);
}

.ark-icon {
  width: 42px;
  height: 42px;
  color: var(--ark-primary);
  margin-bottom: 1.25rem;
}

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

.ark-card h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

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

.ark-card li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--ark-muted);
  font-size: 0.95rem;
}

.ark-card li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--ark-primary);
  font-weight: bold;
  transform: scale(0);
  animation: pop 0.35s ease forwards;
}

.ark-card:hover li::before {
  animation-delay: 0.1s;
}

@keyframes pop {
  to {
    transform: scale(1);
  }
}

.signature-path {
  animation: draw-signature 4s ease-in-out infinite;
}

@keyframes draw-signature {
  0% {
    stroke-dashoffset: 1600;
    opacity: 1;
  }
  70% {
    stroke-dashoffset: 0;
    opacity: 1;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0;
  }
}
/* =============================
   TABLA DE PRECIOS
============================= */

.pricing-table {
  margin-bottom: 40px;
  border-radius: 15px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid #e5e7eb;
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

/* Scroll elegante */
.pricing-table::-webkit-scrollbar {
  height: 6px;
}

.pricing-table::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 10px;
}

/* =============================
   FILAS
============================= */

.pricing-row {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  border-bottom: 1px solid #e5e7eb;
  min-width: 580px; /* evita que se comprima en móvil */
}

.pricing-row > div {
  padding: 18px;
  font-size: 16px;
  text-align: center;
}

/* Primera columna (características) */
.pricing-row > div:first-child {
  text-align: left;
  font-weight: 500;
  color: #111827;
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 1;
}

/* =============================
   HEADER
============================= */

.pricing-row.header {
  background: #f9fafb;
  font-weight: 700;
}

.pricing-row.header .highlight {
  color: #7c0a2c;
}

/* Columna destacada (PRO) */
.highlight {
  background: rgba(124, 10, 44, 0.06);
}

/* =============================
   ICONOS
============================= */

.check {
  color: #7c0a2c;
  font-weight: 700;
}

.cross {
  color: #9ca3af;
}

/* =============================
   FOOTER
============================= */

.pricing-row.footer {
  background: #f9fafb;
}

.pricing-row.footer button {
  width: 100%;
}

/* =============================
   BOTONES
============================= */

.pricing-btn {
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid #7c0a2c;
  background: transparent;
  color: #7c0a2c;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s ease;
}

.pricing-btn:hover {
  background: rgba(124, 10, 44, 0.08);
}

.pricing-btn.primary {
  background: #7c0a2c;
  color: #ffffff;
}

.pricing-btn.primary:hover {
  background: #650822;
}
.old-price {
  text-decoration: line-through;
  text-decoration-color: #800020; /* borgoña 🔥 */
  color: #999;
  margin-right: 6px;
}

.new-price {
  color: #800020;
  font-weight: bold;
}
/* =============================
   BADGE PLAN DESTACADO
============================= */

.pricing-card.featured {
  border: 2px solid #7c0a2c;
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #7c0a2c;
  color: #fff;
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 999px;
}

/* =============================
   INDICADOR MOVIL UX
============================= */

@media (max-width: 768px) {
  .pricing-table::after {
    content: "← desliza para ver los planes →";
    display: block;
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
    padding: 8px;
  }
}
/* === RESPONSIVE === */

@media (max-width: 768px) {
  
   .pricing-table::after {
    content: "← desliza →";
    display: block;
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
    padding: 6px;
  }
}

.billing-toggle{
  display:flex;
  justify-content: center;
  align-items:center;
  font-size:28px;
  margin:30px 0;
}

.switch{
  position:relative;
  display:inline-block;
  width:220px;
  height:60px;
}

.switch input{
  opacity:0;
  width:0;
  height:0;
}

.slider{
  position:absolute;
  cursor:pointer;
  inset:0;
  background:#8B0015;
  border-radius:30px;
  transition:.4s;
  box-shadow:0 10px 25px rgba(128,0,32,0.3);
}

.slider::before{
  content:"Mensual";
  position:absolute;
  height:48px;
  width:110px;
  left:6px;
  bottom:6px;
  background:white;
  border-radius:30px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:600;
  font-size:20px;
  color:#111827;
  transition:.4s;
  box-shadow:1px 1px 25px rgb(255, 255, 255);
}

input:checked + .slider::before{
  transform:translateX(98px);
  content:"Anual";
}

.save{
  color:#8B0015;
  font-weight:600;
}

.use-cases {
  padding: 90px 20px;
  color: #0000;
}

.use-cases-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.use-cases-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.use-cases-subtitle {
  font-size: 1.1rem;
  color: #000000;
  margin-bottom: 50px;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  padding-top: 50px;
}

.use-case-card {
  border: 1px solid rgba(255,255,255,0.1);
  background: var(--primary-light);
  padding: 28px 24px;
  border-radius: 14px;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-case-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: #ffffff;
}

.use-case-card p {
  font-size: 0.95rem;
  color: #d1d5db;
  line-height: 1.6;
}

.use-case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  border-color:var(--ark-primary);
}
/* ===== MOBILE MENU ===== */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: #ffffff;
  padding: 20px;
  z-index: 1000;
  box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.mobile-nav a {
  display: block;
  padding: 12px 0;
  font-weight: 600;
  color: var(--text-light);
  text-decoration: none;
}

.mobile-nav a.btn {
  margin-top: 12px;
  text-align: center;
}

/* estado abierto */
.mobile-nav.open {
  display: block;
}

@media (max-width: 768px) {
  .nav-links,
  .nav-buttons {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }
}
.spinner {
  width: 18px;
  height: 18px;
  border: 3px solid #ddd;
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}