/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 0 0 0 var(--color-primary-glow);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 200, 255, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-hover);
}

.btn-outline:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}

.btn-accent {
  background: var(--gradient-accent);
  color: #fff;
}

.btn-accent:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 51, 102, 0.35);
}

/* ===== CARDS ===== */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--shadow-glow-primary);
}

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

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 1.5rem;
  position: relative;
}

.service-icon.blue {
  background: var(--color-primary-dim);
  border: 1px solid rgba(0, 200, 255, 0.25);
  color: var(--color-primary);
}

.service-icon.purple {
  background: var(--color-secondary-dim);
  border: 1px solid rgba(123, 47, 190, 0.35);
  color: #C07AFF;
}

.service-icon.pink {
  background: var(--color-accent-dim);
  border: 1px solid rgba(255, 51, 102, 0.25);
  color: var(--color-accent);
}

.card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.card p {
  font-size: var(--text-sm);
  line-height: 1.7;
}

.card-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.tag-fintech {
  background: var(--color-primary-dim);
  color: var(--color-primary);
  border: 1px solid rgba(0, 200, 255, 0.2);
}

.tag-enterprise {
  background: var(--color-secondary-dim);
  color: #C07AFF;
  border: 1px solid rgba(123, 47, 190, 0.3);
}

.tag-analytics {
  background: var(--color-accent-dim);
  color: var(--color-accent);
  border: 1px solid rgba(255, 51, 102, 0.2);
}

/* ===== SERVICE FILTER TABS ===== */
.filter-tabs {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.filter-tab {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.filter-tab:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
}

.filter-tab.active {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
}

/* ===== STAT CARDS ===== */
.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-glow-primary);
}

.stat-number {
  font-size: var(--text-5xl);
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
  letter-spacing: -0.04em;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ===== CONTACT FORM ===== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* ===== CONTACT INFO ===== */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--color-primary-dim);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.contact-item-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-1);
}

.contact-item-text p,
.contact-item-text a {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.5;
}

.contact-item-text a:hover { color: var(--color-primary); }

/* ===== ABOUT FEATURES ===== */
.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.feature-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.feature-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  margin-top: 8px;
  box-shadow: 0 0 8px var(--color-primary);
}

.feature-item h4 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.feature-item p {
  font-size: var(--text-sm);
}

/* ===== 3D HK VISUAL ===== */
.hk-visual {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hk-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: ring-rotate 12s linear infinite;
}

.hk-ring:nth-child(1) {
  width: 300px;
  height: 300px;
  border-color: rgba(0, 200, 255, 0.25);
  animation-duration: 14s;
}

.hk-ring:nth-child(2) {
  width: 220px;
  height: 220px;
  border-color: rgba(123, 47, 190, 0.3);
  animation-duration: 10s;
  animation-direction: reverse;
}

.hk-ring:nth-child(3) {
  width: 140px;
  height: 140px;
  border-color: rgba(255, 51, 102, 0.3);
  animation-duration: 8s;
}

.hk-core {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 0 40px rgba(0, 200, 255, 0.4);
  position: relative;
  z-index: 1;
}

/* ===== FOOTER COLUMNS ===== */
.footer-brand .logo-primary {
  font-size: var(--text-xl);
  display: block;
  margin-bottom: var(--space-1);
}

.footer-brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-4);
  line-height: 1.6;
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-5);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--color-primary); }

/* ===== MOUSE ORB ===== */
#cursor-orb {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle at center,
    rgba(0, 200, 255, 0.08) 0%,
    rgba(123, 47, 190, 0.04) 50%,
    transparent 70%);
  pointer-events: none;
  z-index: var(--z-orb);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  top: 0;
  left: 0;
  mix-blend-mode: screen;
}