/* ============ BASE ============ */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

::selection {
  background: rgba(163, 137, 31, 0.3);
  color: #fff;
}

/* ============ NAVIGATION ============ */
#navbar {
  background: transparent;
}

#navbar.scrolled {
  background: rgba(22, 22, 22, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(163, 137, 31, 0.1);
}

.nav-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
  text-decoration: none;
}

.nav-link:hover {
  color: #a3891f;
}

.mobile-link {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  padding: 0.5rem 0;
  text-decoration: none;
  transition: color 0.2s;
}

.mobile-link:hover {
  color: #a3891f;
}

/* ============ LANGUAGE SWITCHER ============ */
.lang-btn {
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  transition: all 0.2s;
  background: transparent;
  border: none;
  cursor: pointer;
}

.lang-btn.active {
  background: #a3891f;
  color: #161616;
}

.lang-btn:hover:not(.active) {
  color: #a3891f;
}

/* ============ BUTTONS ============ */
.btn-primary {
  display: inline-block;
  background: #a3891f;
  color: #161616;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.3s;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  border: 2px solid #a3891f;
}

.btn-primary:hover {
  background: #c9a82a;
  border-color: #c9a82a;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(163, 137, 31, 0.3);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: #a3891f;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.3s;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  border: 2px solid rgba(163, 137, 31, 0.3);
}

.btn-secondary:hover {
  border-color: #a3891f;
  background: rgba(163, 137, 31, 0.1);
  transform: translateY(-2px);
}

/* ============ HERO ============ */
.hero-bg {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(163, 137, 31, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(163, 137, 31, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(163, 137, 31, 0.03) 0%, transparent 50%),
    #161616;
}

.particles {
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(163, 137, 31, 0.4), transparent),
    radial-gradient(1px 1px at 30% 60%, rgba(163, 137, 31, 0.3), transparent),
    radial-gradient(1px 1px at 50% 30%, rgba(163, 137, 31, 0.2), transparent),
    radial-gradient(1px 1px at 70% 70%, rgba(163, 137, 31, 0.3), transparent),
    radial-gradient(1px 1px at 90% 40%, rgba(163, 137, 31, 0.4), transparent),
    radial-gradient(1.5px 1.5px at 15% 80%, rgba(163, 137, 31, 0.2), transparent),
    radial-gradient(1.5px 1.5px at 85% 10%, rgba(163, 137, 31, 0.2), transparent),
    radial-gradient(1px 1px at 45% 90%, rgba(163, 137, 31, 0.15), transparent),
    radial-gradient(1px 1px at 65% 15%, rgba(163, 137, 31, 0.25), transparent),
    radial-gradient(1px 1px at 25% 45%, rgba(163, 137, 31, 0.2), transparent);
  animation: float-particles 20s ease-in-out infinite;
}

@keyframes float-particles {
  0%, 100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-15px) translateX(10px); }
  50% { transform: translateY(-5px) translateX(-5px); }
  75% { transform: translateY(-20px) translateX(15px); }
}

/* ============ SERVICE CARDS ============ */
.service-card {
  background: #1e1e1e;
  border: 1px solid rgba(163, 137, 31, 0.1);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s;
}

.service-card:hover {
  border-color: rgba(163, 137, 31, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  background: rgba(163, 137, 31, 0.1);
  border: 1px solid rgba(163, 137, 31, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: #a3891f;
  transition: all 0.3s;
}

.service-card:hover .service-icon {
  background: #a3891f;
  color: #161616;
}

/* ============ USE CASE CARDS ============ */
.usecase-card {
  background: #1e1e1e;
  border: 1px solid rgba(163, 137, 31, 0.08);
  border-radius: 1rem;
  padding: 1.75rem;
  transition: all 0.3s;
}

.usecase-card:hover {
  border-color: rgba(163, 137, 31, 0.25);
  transform: translateY(-2px);
}

/* ============ RESOURCE CARDS ============ */
.resource-card {
  background: #1e1e1e;
  border: 1px solid rgba(163, 137, 31, 0.08);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: all 0.3s;
  cursor: pointer;
}

.resource-card:hover {
  border-color: rgba(163, 137, 31, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ============ ABOUT VISUAL ============ */
.about-visual {
  background:
    linear-gradient(135deg, #1e1e1e 0%, #2a2a2a 50%, #1e1e1e 100%);
  position: relative;
}

/* ============ FORM ============ */
.form-input {
  width: 100%;
  background: #161616;
  border: 1px solid rgba(163, 137, 31, 0.15);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: #fff;
  font-size: 0.95rem;
  transition: all 0.2s;
  outline: none;
  font-family: 'Inter', sans-serif;
  -webkit-appearance: none;
}

.form-input:focus {
  border-color: #a3891f;
  box-shadow: 0 0 0 3px rgba(163, 137, 31, 0.1);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

select.form-input {
  cursor: pointer;
}

select.form-input option {
  background: #161616;
  color: #fff;
}

/* ============ SCROLL ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #161616;
}

::-webkit-scrollbar-thumb {
  background: rgba(163, 137, 31, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(163, 137, 31, 0.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .about-visual {
    max-width: 300px;
    margin: 0 auto;
  }
}