@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

:root {
  --nube-violet: #6C22F4;
  --nube-violet-dark: #4B0FB8;
  --nube-violet-light: #A778FF;
  --nube-lime: #C6FF3D;
  --nube-lime-dark: #9DE000;
  --nube-ink: #0B0B1A;
  --nube-ink-soft: #14142B;
  --nube-cloud: #F5F3FF;
  --nube-cloud-2: #ECE8FB;
  --nube-gray: #6B6B85;
  --nube-danger: #FF4D6D;
  --nube-success: #21D19F;
  --shadow-violet: 0 10px 30px rgba(108, 34, 244, 0.25);
  --shadow-lime: 0 8px 24px rgba(198, 255, 61, 0.35);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--nube-cloud);
  color: var(--nube-ink);
  overflow-x: hidden;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--nube-ink);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--nube-violet), var(--nube-lime));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--nube-violet-light);
}

/* ===== Sticky Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: #ffffff;
  border-bottom: 1px solid #EEEAFB;
  box-shadow: 0 2px 20px rgba(11, 11, 26, 0.06);
  transition: var(--transition-med);
}

.site-header.scrolled {
  box-shadow: 0 4px 30px rgba(108, 34, 244, 0.15);
}

.nav-link {
  position: relative;
  color: var(--nube-ink);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--nube-violet), var(--nube-lime));
  border-radius: 4px;
  transition: width var(--transition-med);
}

.nav-link:hover {
  color: var(--nube-violet);
}

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

.nav-link.active {
  color: var(--nube-violet);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  background-color: #ffffff;
  border-top: 1px solid #EEEAFB;
}

.mobile-menu-toggle {
  cursor: pointer;
  font-size: 1.75rem;
  color: var(--nube-violet);
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--nube-violet), var(--nube-violet-dark));
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-violet);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(108, 34, 244, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--nube-lime);
  color: var(--nube-ink);
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-lime);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
  border: none;
}

.btn-secondary:hover {
  transform: translateY(-3px);
  background-color: var(--nube-lime-dark);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: transparent;
  color: var(--nube-violet);
  font-weight: 600;
  padding: 0.8rem 1.9rem;
  border-radius: 12px;
  border: 2px solid var(--nube-violet);
  transition: var(--transition-fast);
}

.btn-outline:hover {
  background-color: var(--nube-violet);
  color: #ffffff;
}

.btn-dark-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: transparent;
  color: #ffffff;
  font-weight: 600;
  padding: 0.8rem 1.9rem;
  border-radius: 12px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: var(--transition-fast);
}

.btn-dark-outline:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
}

/* ===== Cards ===== */
.tech-card {
  background-color: #ffffff;
  border-radius: 18px;
  padding: 2rem;
  border: 1px solid #EEEAFB;
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
}

.tech-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(108, 34, 244, 0.18);
  border-color: var(--nube-violet-light);
}

.tech-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--nube-violet), var(--nube-violet-dark));
  color: #ffffff;
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
}

.glow-card {
  position: relative;
  background-color: var(--nube-ink-soft);
  border-radius: 18px;
  padding: 2rem;
  overflow: hidden;
}

.glow-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(198, 255, 61, 0.15) 0%, transparent 60%);
  transition: opacity var(--transition-med);
  opacity: 0;
}

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

/* ===== Section Backgrounds ===== */
.section-dark {
  background-color: var(--nube-ink);
  color: #F0EEFB;
}

.section-gradient {
  background: linear-gradient(135deg, var(--nube-violet-dark) 0%, var(--nube-violet) 100%);
  color: #ffffff;
}

.section-soft {
  background-color: var(--nube-cloud-2);
}

.grid-dots {
  background-image: radial-gradient(circle, rgba(108, 34, 244, 0.15) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
}

/* ===== Accordion ===== */
.accordion-item {
  border: 1px solid #EEEAFB;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 1rem;
  background-color: #ffffff;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--nube-ink);
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--nube-cloud);
}

.accordion-header .ri-arrow-down-s-line {
  transition: transform var(--transition-med);
  color: var(--nube-violet);
}

.accordion-header.active .ri-arrow-down-s-line {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: var(--nube-gray);
  line-height: 1.7;
}

/* ===== Forms ===== */
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.9rem 1.1rem;
  border: 2px solid #E4DFF9;
  border-radius: 12px;
  background-color: #ffffff;
  color: var(--nube-ink);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--nube-violet);
  box-shadow: 0 0 0 4px rgba(108, 34, 244, 0.12);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--nube-ink);
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
}

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

.form-input::placeholder,
.form-textarea::placeholder {
  color: #A5A0C0;
}

/* ===== Cookie Banner ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--nube-ink);
  color: #F0EEFB;
  padding: 1.5rem;
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.3);
  border-top: 3px solid var(--nube-lime);
}

.cookie-banner h3 {
  color: #ffffff;
}

.cookie-banner p {
  color: #C9C4E8;
}

.cookie-banner a {
  color: #A778FF;
  text-decoration: underline;
}

.cookie-banner a:hover {
  color: var(--nube-lime);
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #E4DFF9;
  border-top-color: var(--nube-violet);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Fade & Slide Animations ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeInUp 0.7s ease forwards;
}

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

.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}

.fade-in.opacity-100 {
  opacity: 1;
}

/* ===== Badges ===== */
.badge-popular {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--nube-lime);
  color: var(--nube-ink);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.badge-violet {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: rgba(108, 34, 244, 0.1);
  color: var(--nube-violet);
  font-weight: 600;
  font-size: 0.78rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
}

/* ===== Stats ===== */
.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--nube-violet), var(--nube-lime));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Timeline ===== */
.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  border-left: 3px solid #E4DFF9;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -9px;
  top: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--nube-violet);
  box-shadow: 0 0 0 4px var(--nube-cloud);
}

.timeline-item:last-child {
  border-left-color: transparent;
}

/* ===== Divider ===== */
.divider-gradient {
  height: 4px;
  width: 80px;
  background: linear-gradient(90deg, var(--nube-violet), var(--nube-lime));
  border-radius: 4px;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--nube-ink);
  color: #C9C4E8;
}

.site-footer h3,
.site-footer h4 {
  color: #ffffff;
}

.site-footer a {
  color: #C9C4E8;
  transition: color var(--transition-fast);
}

.site-footer a:hover {
  color: var(--nube-lime);
}

.footer-social {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  transition: var(--transition-fast);
}

.footer-social:hover {
  background-color: var(--nube-violet);
  transform: translateY(-3px);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .stat-number {
    font-size: 2.1rem;
  }
  .tech-card {
    padding: 1.5rem;
  }
}