@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 {
  --adx-deep-indigo: #241454;
  --adx-violet: #7C3AED;
  --adx-violet-light: #A78BFA;
  --adx-cyan: #22D3EE;
  --adx-amber: #F5A524;
  --adx-dark-bg: #100B24;
  --adx-dark-bg-alt: #1A1338;
  --adx-cream: #F4F1FB;
  --adx-gray-text: #4B4266;
  --adx-border: #E4DEFA;
  --adx-shadow: rgba(124, 58, 237, 0.25);
  --adx-gradient: linear-gradient(135deg, var(--adx-deep-indigo) 0%, var(--adx-violet) 55%, var(--adx-cyan) 100%);
  --adx-gradient-soft: linear-gradient(135deg, rgba(124,58,237,0.08) 0%, rgba(34,211,238,0.08) 100%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--adx-gray-text);
  background-color: var(--adx-cream);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--adx-cream);
}
::-webkit-scrollbar-thumb {
  background: var(--adx-violet);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--adx-deep-indigo);
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: #ffffff;
  border-bottom: 1px solid var(--adx-border);
  box-shadow: 0 2px 20px rgba(36, 20, 84, 0.06);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 28px rgba(36, 20, 84, 0.12);
}

.logo-mark {
  filter: drop-shadow(0 2px 6px var(--adx-shadow));
}

.nav-link {
  position: relative;
  font-weight: 600;
  color: var(--adx-deep-indigo);
  transition: color 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 2px;
  background: var(--adx-gradient);
  transition: width 0.3s ease;
}

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

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

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

/* MOBILE MENU */
.mobile-menu {
  background-color: #ffffff;
  border-top: 1px solid var(--adx-border);
}

.mobile-menu a {
  color: var(--adx-deep-indigo);
  border-bottom: 1px solid var(--adx-border);
}

.mobile-menu a:hover {
  color: var(--adx-violet);
  background-color: var(--adx-gradient-soft);
}

.mobile-menu-toggle {
  color: var(--adx-deep-indigo);
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--adx-gradient);
  color: #ffffff;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: 0.65rem;
  box-shadow: 0 8px 24px var(--adx-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px var(--adx-shadow);
  color: #ffffff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--adx-violet);
  font-weight: 700;
  padding: 0.8rem 1.9rem;
  border-radius: 0.65rem;
  border: 2px solid var(--adx-violet);
  transition: all 0.25s ease;
  cursor: pointer;
}

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

.btn-amber {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--adx-amber);
  color: #1A1338;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: 0.65rem;
  box-shadow: 0 8px 22px rgba(245, 165, 36, 0.35);
  transition: transform 0.25s ease, filter 0.25s ease;
}

.btn-amber:hover {
  transform: translateY(-3px);
  filter: brightness(1.05);
}

/* CARDS */
.tech-card {
  background-color: #ffffff;
  border: 1px solid var(--adx-border);
  border-radius: 1rem;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--adx-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(36, 20, 84, 0.12);
  border-color: var(--adx-violet-light);
}

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

.tech-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  background: var(--adx-gradient-soft);
  color: var(--adx-violet);
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

/* DARK SECTIONS */
.dark-section {
  background: var(--adx-dark-bg);
  color: #E9E5F7;
}

.dark-section .section-heading {
  color: #ffffff;
}

.dark-section p {
  color: #C9C2E8;
}

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

.dark-card:hover {
  border-color: var(--adx-cyan);
  transform: translateY(-5px);
}

/* FORMS */
.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 2px solid var(--adx-border);
  border-radius: 0.6rem;
  background-color: #ffffff;
  color: var(--adx-deep-indigo);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--adx-violet);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12);
}

.form-control::placeholder {
  color: #9C93BF;
}

label {
  font-weight: 600;
  color: var(--adx-deep-indigo);
  margin-bottom: 0.4rem;
  display: inline-block;
}

/* ACCORDION */
.accordion-item {
  border: 1px solid var(--adx-border);
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  overflow: hidden;
  background-color: #ffffff;
}

.accordion-header {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  color: var(--adx-deep-indigo);
  transition: background-color 0.25s ease;
}

.accordion-header:hover {
  background-color: var(--adx-gradient-soft);
}

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

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

.accordion-content {
  display: none;
  padding: 0 1.5rem 1.5rem;
  color: var(--adx-gray-text);
}

/* COOKIE BANNER */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--adx-dark-bg);
  color: #E9E5F7;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.25);
  border-top: 1px solid rgba(124, 58, 237, 0.4);
}

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

.cookie-banner p {
  color: #C9C2E8;
}

.cookie-banner a {
  color: #7DD3FC;
  text-decoration: underline;
}

.cookie-banner a:hover {
  color: #A5F3FC;
}

.cookie-accept-btn {
  background: var(--adx-gradient);
  color: #ffffff;
  font-weight: 700;
  padding: 0.7rem 1.6rem;
  border-radius: 0.55rem;
  transition: transform 0.25s ease;
}

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

/* HERO */
.hero-gradient {
  background: var(--adx-gradient);
  position: relative;
  overflow: hidden;
}

.hero-gradient::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 60%;
  height: 160%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.hero-gradient h1,
.hero-gradient h2 {
  color: #ffffff;
}

.hero-gradient p {
  color: #E4DEFA;
}

/* BADGES */
.badge-popular {
  position: absolute;
  top: -14px;
  right: 24px;
  background: var(--adx-amber);
  color: #1A1338;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(245, 165, 36, 0.4);
}

/* SPINNER */
.adx-spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--adx-border);
  border-top-color: var(--adx-violet);
  border-radius: 50%;
  animation: adx-spin 0.8s linear infinite;
}

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

/* FADE IN */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* SECTION HEADINGS */
.section-heading {
  color: var(--adx-deep-indigo);
  font-weight: 800;
  position: relative;
}

.section-tag {
  display: inline-block;
  color: var(--adx-violet);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

/* FOOTER */
.site-footer {
  background: var(--adx-dark-bg);
  color: #C9C2E8;
}

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

.site-footer a {
  color: #C9C2E8;
  transition: color 0.2s ease;
}

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

.footer-divider {
  border-color: rgba(124, 58, 237, 0.25);
}

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(124, 58, 237, 0.15);
  color: #E9E5F7;
  transition: background 0.25s ease, transform 0.25s ease;
}

.social-icon:hover {
  background: var(--adx-gradient);
  transform: translateY(-3px);
  color: #ffffff;
}

/* MISC */
.divider-gradient {
  height: 3px;
  background: var(--adx-gradient);
  border-radius: 999px;
}

a {
  transition: color 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
}

.cursor-default-card {
  cursor: default;
}

@media (max-width: 768px) {
  .hero-gradient h1 {
    font-size: 2.1rem;
  }
  .tech-card {
    padding: 1.5rem;
  }
}