@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 {
  --primary: #7C3AED;
  --primary-dark: #5B21B6;
  --primary-light: #A78BFA;
  --secondary: #00D9FF;
  --accent: #FF2D78;
  --accent-dark: #D6115A;
  --dark: #0B0E1A;
  --dark-alt: #131829;
  --dark-card: #1A2036;
  --light: #F5F3FF;
  --gray-text: #94A3B8;
  --border-glow: rgba(124, 58, 237, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--light);
  color: #1E1B2E;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--dark);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent), var(--primary));
}

/* ===== Sticky Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: var(--dark);
  border-bottom: 1px solid rgba(124, 58, 237, 0.25);
  box-shadow: 0 2px 20px rgba(124, 58, 237, 0.15);
}

.site-header .logo-text {
  background: linear-gradient(90deg, var(--secondary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.nav-link {
  position: relative;
  color: #CBD5E1;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: #ffffff;
}

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

.nav-link.active {
  color: #ffffff;
}

/* ===== Mobile Menu ===== */
.mobile-menu-toggle {
  color: #E2E8F0;
  font-size: 1.75rem;
  cursor: pointer;
}

.mobile-menu {
  background-color: var(--dark-alt);
  border-top: 1px solid rgba(124, 58, 237, 0.25);
}

.mobile-menu a {
  color: #CBD5E1;
  display: block;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-menu a:hover {
  background-color: rgba(124, 58, 237, 0.15);
  color: #ffffff;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 45, 120, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--secondary);
  font-weight: 600;
  padding: 0.8rem 1.9rem;
  border-radius: 0.5rem;
  border: 2px solid var(--secondary);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background-color: var(--secondary);
  color: var(--dark);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

.btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--dark);
  color: #ffffff;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

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

/* ===== Cards ===== */
.tech-card {
  background: #ffffff;
  border: 1px solid #E9E4FF;
  border-radius: 0.75rem;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(124, 58, 237, 0.18);
  border-color: var(--primary-light);
}

.tech-card .icon-wrap {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.dark-card {
  background-color: var(--dark-card);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: 0.75rem;
  padding: 2rem;
  color: #E2E8F0;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dark-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 217, 255, 0.2);
}

.dark-card h3, .dark-card h4 {
  color: #ffffff;
}

.dark-card p {
  color: var(--gray-text);
}

/* ===== Accordion ===== */
.accordion-item {
  border: 1px solid #E9E4FF;
  border-radius: 0.5rem;
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: #ffffff;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  color: #1E1B2E;
  transition: background 0.2s ease;
}

.accordion-header:hover {
  background-color: #F5F3FF;
}

.accordion-header i {
  color: var(--primary);
  transition: transform 0.3s ease;
}

.accordion-header.active i {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: #4B4560;
  line-height: 1.7;
}

/* ===== Forms ===== */
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid #E2D9FF;
  border-radius: 0.5rem;
  background-color: #FAFAFF;
  color: #1E1B2E;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.15);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: #2E2650;
  margin-bottom: 0.4rem;
}

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

.form-group i.form-icon {
  position: absolute;
  left: 1rem;
  top: 2.65rem;
  color: var(--primary-light);
}

/* ===== Cookie Banner ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--dark);
  border-top: 2px solid var(--primary);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.3);
}

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

.cookie-banner p {
  color: #CBD5E1;
}

.cookie-banner a {
  color: var(--secondary);
  text-decoration: underline;
}

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

/* ===== Hero / Section Backgrounds ===== */
.hero-gradient {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-alt) 45%, #1D1140 100%);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.15), transparent 70%);
  border-radius: 50%;
}

.hero-gradient::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 45, 120, 0.12), transparent 70%);
  border-radius: 50%;
}

.section-alt {
  background-color: var(--dark-alt);
}

.grid-pattern {
  background-image: linear-gradient(rgba(124, 58, 237, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ===== Badges ===== */
.badge-popular {
  background: linear-gradient(90deg, var(--accent), var(--primary));
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  letter-spacing: 0.02em;
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 2.5rem;
  height: 2.5rem;
  border: 4px solid rgba(124, 58, 237, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Fade / Animation Utilities ===== */
.fade-in {
  animation: fadeInUp 0.6s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 217, 255, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(0, 217, 255, 0); }
}

img[data-lazy] {
  transition: opacity 0.5s ease;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--dark);
  color: var(--gray-text);
  border-top: 1px solid rgba(124, 58, 237, 0.25);
}

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

.site-footer a {
  color: var(--gray-text);
  transition: color 0.25s ease;
}

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

.social-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: var(--dark-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #E2E8F0;
  transition: background 0.3s ease, transform 0.3s ease;
}

.social-icon:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transform: translateY(-3px);
  color: #ffffff;
}

/* ===== Utility Text Gradient ===== */
.text-gradient {
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Divider ===== */
.divider-glow {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
  width: 100%;
  margin: 2rem 0;
}