:root {
  --color-bg: #0B0D0A;
  --color-surface: #111411;
  --color-surface-light: #151915;
  --color-primary: #96AF02;
  --color-primary-light: #B9D64A;
  --color-primary-dark: #879D02;
  --color-primary-darker: #6F8310;
  --color-primary-secondary: #879D02;
  --color-text: #F3F5F1;
  --color-muted: #B7BDB0;
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-deep: 0 24px 80px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 40px rgba(150, 175, 2, 0.25);
  --transition-base: 220ms ease;
  --transition-long: 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

*,
*::before,
*::after {
  box-sizing: border-box;
}

img,
picture,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
}

/* Prevenir overflow horizontal sin afectar scroll vertical */
html, body {
  max-width: 100%;
}

body > * {
  max-width: 100%;
}

.top-nav {
  position: fixed;
  inset: 20px 20px auto;
  z-index: 999;
  background: rgba(9, 9, 9, 0.86);
  border: 1px solid rgba(150, 175, 2, 0.18);
  border-radius: 18px;
  backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 24px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition-base);
}

.top-nav.scrolled {
  inset: 14px 14px auto;
  background: rgba(5, 5, 5, 0.96);
  border-color: rgba(150, 175, 2, 0.3);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand__logo {
  width: 48px;
  height: auto;
  display: block;
  filter: saturate(0.6) brightness(1.2);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  gap: 0;
  justify-content: center;
}

.brand__name {
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand__tag {
  font-size: 0.7rem;
  color: var(--color-muted);
}

/* ========================================
   NAV LINKS
   ======================================== */

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  padding: 8px 0;
  color: var(--color-muted);
  transition: color var(--transition-base);
  text-decoration: none;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-long);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 10px 18px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  color: var(--color-text) !important;
  background: linear-gradient(
    135deg,
    rgba(163, 194, 26, 0.3),
    rgba(133, 158, 20, 0.1)
  );
  box-shadow: 0 0 20px rgba(163, 194, 26, 0.2);
}

.nav-cta.active {
  background: linear-gradient(
    135deg,
    rgba(163, 194, 26, 0.4),
    rgba(133, 158, 20, 0.15)
  );
  border-color: var(--color-primary-light);
}

/* ========================================
   MOBILE TOGGLE
   ======================================== */

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: 1.6rem;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.nav-toggle:hover {
  transform: scale(1.1);
}

.btn-back {
  padding: 10px 24px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition-base);
  font-size: 0.9rem;
  background: linear-gradient(
    135deg,
    rgba(150, 175, 2, 0.3),
    rgba(135, 157, 2, 0.1)
  );
  box-shadow: 0 4px 12px rgba(150, 175, 2, 0.1);
}

.btn-back:hover {
  background: linear-gradient(
    135deg,
    rgba(150, 175, 2, 0.4),
    rgba(135, 157, 2, 0.2)
  );
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(150, 175, 2, 0.25);
  transform: translateY(-1px);
}

.hero-plans {
  padding: 120px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-plans::before {
  content: 'PRICING';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(8rem, 20vw, 16rem);
  font-weight: 900;
  color: rgba(163, 194, 26, 0.08);
  letter-spacing: 0.05em;
  pointer-events: none;
  filter: blur(2px);
  z-index: 0;
}

.hero-plans__content {
  position: relative;
  z-index: 1;
}

.hero-plans__content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 16px;
  font-weight: 700;
}

.hero-plans__content p {
  font-size: 1.2rem;
  color: var(--color-muted);
}

.plans-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 32px;
  width: 100%;
}

.plan-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  padding: 48px 36px;
  position: relative;
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: all var(--transition-long);
  overflow: visible;
  margin-top: 24px;
  min-width: 0;
  max-width: 100%;
}

.plan-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, transparent 100%);
  pointer-events: none;
  border-radius: 28px 28px 0 0;
  z-index: 0;
}

.plan-card > * {
  position: relative;
  z-index: 1;
}

.plan-card:hover {
  transform: translateY(-8px);
  border-color: rgba(163, 194, 26, 0.35);
  box-shadow: var(--shadow-deep), 0 0 60px rgba(163, 194, 26, 0.15);
}

.plan-card--featured {
  border: 2px solid rgba(163, 194, 26, 0.5);
  background: rgba(163, 194, 26, 0.06);
  transform: scale(1.08);
  box-shadow: var(--shadow-deep), 0 0 80px rgba(163, 194, 26, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.plan-card--featured:hover {
  transform: scale(1.08) translateY(-8px);
  box-shadow: var(--shadow-deep), var(--shadow-glow);
}

.plan-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #010101;
  padding: 8px 24px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  box-shadow: 0 4px 20px rgba(163, 194, 26, 0.4);
}

.plan-card__header {
  margin-bottom: 24px;
  text-align: center;
}

.plan-card__header h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
  color: var(--color-text);
  font-weight: 600;
}

.plan-card__subtitle {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.plan-card__price {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.plan-card__price .currency {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: block;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.plan-card__price .amount {
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

.plan-card__price .period {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: block;
}

.plan-card__maintenance {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: -24px;
  margin-bottom: 24px;
  font-style: italic;
}

.plan-card__features {
  list-style: none;
  margin-bottom: 32px;
}

.plan-card__features li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.plan-card__features li:last-child {
  border-bottom: none;
}

.plan-card__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.2rem;
}

.plan-card__ideal {
  background: rgba(150, 175, 2, 0.08);
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.plan-card__ideal strong {
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  width: 100%;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-primary);
  color: #010101;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  box-shadow: 0 0 50px rgba(163, 194, 26, 0.35);
}

.btn--ghost {
  border: 1px solid var(--color-primary-dark);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 25px rgba(163, 194, 26, 0.2);
  background: rgba(163, 194, 26, 0.05);
}

.cta-section {
  max-width: 720px;
  margin: 60px auto;
  padding: 60px 24px;
  text-align: center;
  background: linear-gradient(135deg, rgba(150, 175, 2, 0.1), rgba(135, 157, 2, 0.05));
  border-radius: 24px;
  border: 1px solid rgba(150, 175, 2, 0.2);
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--color-muted);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta-section .btn {
  max-width: 400px;
}

.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid rgba(150, 175, 2, 0.18);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.footer a {
  color: var(--color-primary);
  text-decoration: none;
  margin-left: 16px;
}

/* ========================================
   MODAL
   ======================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal--active {
  display: flex;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease;
}

.modal__content {
  position: relative;
  background: rgba(11, 11, 11, 0.98);
  border: 1px solid rgba(150, 175, 2, 0.3);
  border-radius: 16px;
  padding: 40px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scrollbar personalizado para el modal */
.modal__content::-webkit-scrollbar {
  width: 8px;
}

.modal__content::-webkit-scrollbar-track {
  background: rgba(244, 244, 244, 0.05);
  border-radius: 10px;
  margin: 8px 0;
}

.modal__content::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-secondary));
  border-radius: 10px;
  transition: background 0.3s ease;
}

.modal__content::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* Para Firefox */
.modal__content {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) rgba(244, 244, 244, 0.05);
}

.modal__content--small {
  max-width: 500px;
}

/* ========================================
   TÉRMINOS Y CONDICIONES
   ======================================== */

.terms-content {
  max-height: 400px;
  overflow-y: auto;
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  margin-bottom: 24px;
}

.terms-content h3 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-top: 20px;
  margin-bottom: 12px;
}

.terms-content h3:first-child {
  margin-top: 0;
}

.terms-content p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.terms-content ul {
  list-style: none;
  padding-left: 20px;
  margin-bottom: 16px;
}

.terms-content ul li {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
}

.terms-content ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.terms-actions {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
}

/* Campo de email en términos */
.terms-actions input[type="email"] {
  transition: all var(--transition-base);
}

.terms-actions input[type="email"]:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(163, 194, 26, 0.1);
}

.terms-actions input[type="email"]:valid {
  border-color: rgba(163, 194, 26, 0.4);
}

.terms-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  cursor: pointer;
  user-select: none;
}

.terms-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.terms-checkbox span {
  color: var(--color-text);
  font-size: 0.95rem;
}

.terms-checkbox:hover span {
  color: var(--color-primary);
}

.modal__close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(150, 175, 2, 0.1);
  border: 1px solid rgba(150, 175, 2, 0.3);
  color: var(--color-text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__close:hover {
  background: var(--color-primary);
  color: #0b0b0b;
  transform: rotate(90deg);
}

.modal__header {
  margin-bottom: 32px;
}

.modal__header h2 {
  font-size: 2rem;
  margin-bottom: 8px;
  color: var(--color-text);
}

.modal__header p {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

/* ========================================
   PROJECT FORM
   ======================================== */

.project-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  background: rgba(244, 244, 244, 0.05);
  border: 1px solid rgba(150, 175, 2, 0.25);
  border-radius: 8px;
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-base);
  cursor: pointer;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%2396af02' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

.form-group select option {
  background: #0b0b0b;
  color: var(--color-text);
  padding: 12px 16px;
}

.form-group select option:hover,
.form-group select option:checked {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-secondary));
  color: #0b0b0b;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(150, 175, 2, 0.08);
  box-shadow: 0 0 0 3px rgba(150, 175, 2, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(244, 244, 244, 0.4);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  margin-top: 12px;
}

.form-actions .btn {
  min-width: 160px;
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
  .top-nav {
    inset: 12px 12px auto;
    padding: 12px 16px;
    /* Reducir backdrop-filter para mejor performance en mobile */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  .brand__logo {
    width: 36px;
  }

  .brand__name {
    font-size: 0.85rem;
  }

  .brand__tag {
    font-size: 0.65rem;
  }

  .btn-back {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .hero-plans {
    padding: 100px 16px 60px;
  }

  .plans-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 60px 16px 40px;
  }

  .plan-card {
    padding: 32px 24px;
    margin-top: 16px;
    /* Reducir backdrop-filter para mejor scroll */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .plan-card--featured {
    transform: scale(1);
  }

  .plan-card--featured:hover {
    transform: translateY(-8px);
  }

  .modal {
    padding: 12px;
    /* Asegurar que el modal no bloquee el scroll */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal__content {
    padding: 28px 20px;
    max-width: calc(100vw - 24px);
    max-height: 85vh;
    /* Scroll suave en mobile */
    -webkit-overflow-scrolling: touch;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn {
    width: 100%;
  }
}

/* Extra small devices */
@media (max-width: 480px) {
  .plans-grid {
    padding: 40px 12px 30px;
  }

  .plan-card {
    padding: 24px 16px;
  }

  .hero-plans {
    padding: 90px 12px 50px;
  }

  .hero-plans__content h1 {
    font-size: 2rem;
  }

  .hero-plans__content p {
    font-size: 1rem;
  }
}