/* ===================== NAVIGATION ===================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  color: var(--neon-cyan);
  text-shadow:
    0 0 7px rgba(0, 240, 255, 0.6),
    0 0 20px rgba(0, 240, 255, 0.3);
  letter-spacing: 2px;
  font-weight: 700;
}

.nav-logo span {
  color: var(--text-primary);
  text-shadow: none;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--neon-cyan);
}

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

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-base);
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 0.85em 2em;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.1), transparent);
  transition: left var(--transition-slow);
}

.btn:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-cyan);
  color: #fff;
}

.btn:hover::before {
  left: 100%;
}

.btn-magenta {
  border-color: var(--neon-magenta);
  color: var(--neon-magenta);
}

.btn-magenta:hover {
  background: rgba(255, 0, 170, 0.1);
  box-shadow: var(--glow-magenta);
  color: #fff;
}

.btn-filled {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

.btn-filled:hover {
  background: rgba(0, 240, 255, 0.2);
}

/* ===================== CARDS ===================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: var(--glow-cyan);
  transform: translateY(-4px);
}

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

.card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--neon-cyan);
}

.card h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--fs-md);
}

.card p {
  margin-bottom: var(--space-lg);
}

/* ===================== SECTION HEADERS ===================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--neon-cyan);
  margin-bottom: var(--space-sm);
  display: block;
}

/* ===================== FOOTER ===================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) var(--space-lg);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  color: var(--neon-cyan);
  text-shadow: 0 0 7px rgba(0, 240, 255, 0.4);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--neon-cyan);
}

.footer-bottom {
  width: 100%;
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.footer-tagline {
  font-family: var(--font-heading);
  color: var(--neon-green) !important;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: var(--fs-xs) !important;
  margin-top: var(--space-xs);
}

/* ===================== TAGS / BADGES ===================== */
.tag {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.3em 0.8em;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  display: inline-block;
}

.tag-magenta {
  border-color: var(--neon-magenta);
  color: var(--neon-magenta);
}

.tag-green {
  border-color: var(--neon-green);
  color: var(--neon-green);
}

/* ===================== FORM ELEMENTS ===================== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.85em 1em;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: var(--fs-base);
  transition: all var(--transition-base);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888899' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
}

.form-group select option {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    gap: var(--space-lg);
    border-left: 1px solid var(--border);
    transition: right var(--transition-base);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-hamburger {
    display: flex;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}