/**
 * Crypto API Hub Integrated - Styles
 * Modern, seamless UI with glassmorphism and animations
 */

/* =========================================================================
   GLOBAL STYLES
   ========================================================================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background: var(--background-main);
  color: var(--text-normal);
  line-height: var(--lh-normal);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* =========================================================================
   BACKGROUND EFFECTS
   ========================================================================= */

.background-effects {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, transparent 70%);
  top: -250px;
  left: -250px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);
  bottom: -200px;
  right: -200px;
  animation-delay: 5s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.3) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { 
    transform: translate(0, 0) scale(1); 
  }
  33% { 
    transform: translate(30px, -30px) scale(1.1); 
  }
  66% { 
    transform: translate(-20px, 20px) scale(0.9); 
  }
}

/* =========================================================================
   CONTAINER
   ========================================================================= */

.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--space-8);
  position: relative;
  z-index: 1;
}

/* =========================================================================
   HEADER
   ========================================================================= */

.hub-header {
  background: var(--surface-glass);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  animation: slideDown 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hub-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header-content {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-8);
  align-items: center;
}

/* =========================================================================
   LOGO SECTION
   ========================================================================= */

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.logo {
  width: 70px;
  height: 70px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-blue-strong);
  animation: float 3s ease-in-out infinite;
}

.logo svg {
  width: 40px;
  height: 40px;
}

.brand-text h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--fs-3xl);
  font-weight: var(--fw-black);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-1);
  line-height: var(--lh-tight);
}

.brand-text p {
  color: var(--text-muted);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
}

/* =========================================================================
   STATS
   ========================================================================= */

.stats-row {
  display: flex;
  gap: var(--space-12);
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-black);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  font-weight: var(--fw-bold);
}

/* =========================================================================
   HEADER ACTIONS
   ========================================================================= */

.header-actions {
  display: flex;
  gap: var(--space-3);
}

.btn-gradient {
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--fw-bold);
  font-size: var(--fs-base);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--glow-blue);
  position: relative;
  overflow: hidden;
  background: var(--gradient-primary);
  color: white;
}

.btn-gradient:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-blue-strong);
}

.btn-gradient:active {
  transform: translateY(-2px);
}

/* =========================================================================
   STATUS BAR
   ========================================================================= */

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  background: var(--surface-glass);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

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

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-normal);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.status-active {
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-info {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* =========================================================================
   CONTROLS
   ========================================================================= */

.controls {
  background: var(--surface-glass);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.search-wrapper {
  position: relative;
  margin-bottom: var(--space-4);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
  background: rgba(15, 23, 42, 0.60);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-normal);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--brand-blue);
  background: rgba(15, 23, 42, 0.80);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.filter-tabs {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.filter-tab {
  padding: var(--space-3) var(--space-6);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.filter-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--brand-blue);
  color: var(--text-normal);
  transform: translateY(-2px);
}

.filter-tab.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--glow-blue);
}

/* =========================================================================
   SERVICES GRID
   ========================================================================= */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.service-card {
  background: var(--surface-glass);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--border-medium);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-header {
  display: flex;
  align-items: start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--glow-blue);
  transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-icon svg {
  width: 32px;
  height: 32px;
}

.service-info {
  flex: 1;
  min-width: 0;
}

.service-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--fs-xl);
  font-weight: var(--fw-black);
  color: var(--text-strong);
  margin-bottom: var(--space-2);
  line-height: var(--lh-tight);
}

.service-url {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  word-break: break-all;
  opacity: 0.8;
}

.service-badges {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.badge {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-xs);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.badge-category {
  background: rgba(59, 130, 246, 0.2);
  color: var(--brand-blue-light);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-endpoints {
  background: rgba(34, 211, 238, 0.2);
  color: var(--brand-cyan-light);
  border: 1px solid rgba(34, 211, 238, 0.3);
}

.badge-key {
  background: rgba(52, 211, 153, 0.2);
  color: var(--brand-green-light);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.endpoints-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.endpoint-item {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: all var(--transition-fast);
}

.endpoint-item:hover {
  border-color: var(--brand-blue);
  background: rgba(0, 0, 0, 0.6);
  transform: translateX(4px);
}

.endpoint-path {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--brand-cyan);
  word-break: break-all;
  margin-bottom: var(--space-3);
  line-height: var(--lh-relaxed);
}

.endpoint-actions {
  display: flex;
  gap: var(--space-2);
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-normal);
  border-radius: var(--radius-xs);
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-sm:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--glow-blue);
}

.no-endpoints {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  font-style: italic;
}

.more-endpoints {
  text-align: center;
  color: var(--text-muted);
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
}

/* =========================================================================
   LOADING & EMPTY STATES
   ========================================================================= */

.loading-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
  text-align: center;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-light);
  border-top-color: var(--brand-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-4);
}

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

.loading-text {
  color: var(--text-muted);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
  text-align: center;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--space-4);
  opacity: 0.3;
}

.empty-text {
  color: var(--text-muted);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
}

/* =========================================================================
   MODAL
   ========================================================================= */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: var(--z-modal);
  padding: var(--space-8);
  overflow-y: auto;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--surface-elevated);
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-2xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  padding: var(--space-8);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--gradient-primary);
}

.modal-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: white;
}

.modal-close {
  width: 44px;
  height: 44px;
  border: none;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border-radius: var(--radius-sm);
  font-size: var(--fs-3xl);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--danger);
  transform: rotate(90deg) scale(1.1);
}

.modal-body {
  padding: var(--space-8);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: var(--fw-bold);
  font-size: var(--fs-base);
  margin-bottom: var(--space-3);
  color: var(--text-normal);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-normal);
  font-family: var(--font-mono);
  font-size: var(--fs-base);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
  background: rgba(0, 0, 0, 0.6);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.method-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.method-btn {
  padding: var(--space-4);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-weight: var(--fw-bold);
  font-size: var(--fs-base);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.method-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  box-shadow: var(--glow-blue);
}

.response-container {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-top: var(--space-6);
  max-height: 400px;
  overflow-y: auto;
}

.response-json {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  color: var(--brand-cyan);
  white-space: pre-wrap;
  word-break: break-all;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */

@media (max-width: 1024px) {
  .header-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-6);
  }
  
  .logo-section {
    justify-content: center;
  }

  .stats-row {
    justify-content: center;
  }
  
  .header-actions {
    justify-content: center;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    padding: var(--space-4);
  }
  
  .hub-header {
    padding: var(--space-6);
  }
  
  .logo {
    width: 50px;
    height: 50px;
  }
  
  .logo svg {
    width: 28px;
    height: 28px;
  }
  
  .brand-text h1 {
    font-size: var(--fs-2xl);
  }
  
  .stats-row {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .header-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-gradient {
    justify-content: center;
  }
  
  .method-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =========================================================================
   CUSTOM SCROLLBAR
   ========================================================================= */

::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.4);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-blue-light);
}