/*
 * COMPONENT LIBRARY - Eleazar Ogoyemi Portfolio
 * ==============================================
 * Reusable UI components built on the design system
 * 
 * Components:
 * - Buttons (primary, secondary, ghost, icon)
 * - Cards (glass, elevated, interactive)
 * - Modals & Overlays
 * - Form Elements
 * - Badges & Tags
 * - Navigation
 * - Loading States
 */

/* ============================================
   BUTTONS
   ============================================ */

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

.btn:focus-visible {
  outline: 2px solid var(--ds-primary);
  outline-offset: 2px;
}

/* Primary Button */
.btn-primary {
  background: var(--ds-gradient-primary);
  color: var(--ds-text-primary);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--ds-shadow-hover);
}

.btn-primary:active {
  transform: translateY(-1px);
}

/* Secondary Button */
.btn-secondary {
  background: transparent;
  color: var(--ds-text-primary);
  border: 2px solid var(--ds-border-default);
  backdrop-filter: var(--ds-glass-blur);
}

.btn-secondary:hover {
  border-color: var(--ds-text-accent);
  color: var(--ds-text-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.2);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--ds-text-secondary);
  padding: var(--ds-space-2) var(--ds-space-4);
}

.btn-ghost:hover {
  background: var(--ds-surface-2);
  color: var(--ds-text-primary);
}

/* Icon Button */
.btn-icon {
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border-radius: var(--ds-radius-full);
  background: var(--ds-surface-2);
  color: var(--ds-text-secondary);
  border: 1px solid var(--ds-border-subtle);
}

.btn-icon:hover {
  background: var(--ds-surface-3);
  color: var(--ds-text-primary);
  transform: scale(1.05);
}

/* Button Sizes */
.btn-sm {
  padding: var(--ds-space-2) var(--ds-space-4);
  font-size: var(--ds-text-sm);
}

.btn-lg {
  padding: var(--ds-space-5) var(--ds-space-10);
  font-size: var(--ds-text-lg);
}

/* Button with Ripple (JS adds .ripple child) */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple-effect 0.6s linear;
  pointer-events: none;
}

@keyframes ripple-effect {
  to {
    transform: scale(2.5);
    opacity: 0;
  }
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--ds-glass-bg);
  backdrop-filter: var(--ds-glass-blur);
  -webkit-backdrop-filter: var(--ds-glass-blur);
  border: 1px solid var(--ds-glass-border);
  border-radius: var(--ds-radius-2xl);
  padding: var(--ds-space-8);
  position: relative;
  overflow: hidden;
  transition: var(--ds-transition-normal);
}

/* Card with top accent line */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--ds-gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--ds-duration-normal) var(--ds-ease-out);
}

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

/* Elevated Card */
.card-elevated {
  background: var(--ds-bg-elevated);
  box-shadow: var(--ds-shadow-lg);
}

.card-elevated:hover {
  box-shadow: var(--ds-shadow-xl);
}

/* Interactive Card */
.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  transform: translateY(-8px);
  background: var(--ds-surface-3);
  border-color: var(--ds-border-strong);
  box-shadow: var(--ds-shadow-hover);
}

/* Card Header */
.card-header {
  display: flex;
  align-items: center;
  gap: var(--ds-space-4);
  margin-bottom: var(--ds-space-4);
}

.card-icon {
  font-size: var(--ds-text-3xl);
}

.card-title {
  font-size: var(--ds-text-xl);
  font-weight: var(--ds-weight-semibold);
  color: var(--ds-text-primary);
  margin: 0;
}

.card-description {
  color: var(--ds-text-secondary);
  line-height: var(--ds-leading-relaxed);
  margin: 0;
}

/* Gradient Border Card */
.card-gradient-border {
  background: var(--ds-bg-secondary);
  border: none;
  position: relative;
}

.card-gradient-border::after {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: var(--ds-gradient-primary);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ============================================
   MODAL & OVERLAY
   ============================================ */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--ds-z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: var(--ds-transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  max-width: min(90vw, 600px);
  max-height: 90vh;
  background: var(--ds-bg-elevated);
  border: 1px solid var(--ds-border-default);
  border-radius: var(--ds-radius-2xl);
  padding: var(--ds-space-8);
  z-index: var(--ds-z-modal);
  opacity: 0;
  visibility: hidden;
  overflow-y: auto;
  transition: var(--ds-transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--ds-space-6);
}

.modal-title {
  font-size: var(--ds-text-2xl);
  font-weight: var(--ds-weight-bold);
  background: var(--ds-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

.modal-close {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ds-surface-2);
  border: none;
  border-radius: var(--ds-radius-full);
  color: var(--ds-text-secondary);
  cursor: pointer;
  transition: var(--ds-transition-fast);
}

.modal-close:hover {
  background: var(--ds-surface-3);
  color: var(--ds-text-primary);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

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

.form-label {
  display: block;
  font-size: var(--ds-text-sm);
  font-weight: var(--ds-weight-medium);
  color: var(--ds-text-secondary);
  margin-bottom: var(--ds-space-2);
  transition: var(--ds-transition-fast);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--ds-space-4) var(--ds-space-5);
  font-family: var(--ds-font-sans);
  font-size: var(--ds-text-base);
  color: var(--ds-text-primary);
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border-default);
  border-radius: var(--ds-radius-xl);
  transition: var(--ds-transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--ds-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
  background: var(--ds-surface-3);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--ds-text-tertiary);
}

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

/* Floating Label Style */
.form-floating {
  position: relative;
}

.form-floating .form-input,
.form-floating .form-textarea {
  padding-top: var(--ds-space-6);
}

.form-floating .form-label {
  position: absolute;
  top: 50%;
  left: var(--ds-space-5);
  transform: translateY(-50%);
  pointer-events: none;
  transition: var(--ds-transition-fast);
  margin: 0;
}

.form-floating .form-textarea + .form-label {
  top: var(--ds-space-4);
  transform: none;
}

.form-floating .form-input:focus + .form-label,
.form-floating .form-input:not(:placeholder-shown) + .form-label,
.form-floating .form-textarea:focus + .form-label,
.form-floating .form-textarea:not(:placeholder-shown) + .form-label {
  top: var(--ds-space-2);
  font-size: var(--ds-text-xs);
  color: var(--ds-primary);
  transform: none;
}

/* Error State */
.form-error .form-input,
.form-error .form-textarea {
  border-color: #ef4444;
}

.form-error-message {
  color: #ef4444;
  font-size: var(--ds-text-sm);
  margin-top: var(--ds-space-2);
}

/* ============================================
   BADGES & TAGS
   ============================================ */

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

.badge-primary {
  background: rgba(102, 126, 234, 0.2);
  color: #a5b4fc;
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: #fcd34d;
}

.badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--ds-space-1);
  padding: var(--ds-space-1) var(--ds-space-3);
  font-size: var(--ds-text-sm);
  color: var(--ds-text-secondary);
  background: var(--ds-surface-2);
  border: 1px solid var(--ds-border-subtle);
  border-radius: var(--ds-radius-lg);
  transition: var(--ds-transition-fast);
}

.tag:hover {
  background: var(--ds-surface-3);
  color: var(--ds-text-primary);
  border-color: var(--ds-border-default);
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--ds-container-7xl);
  margin: 0 auto;
  padding: 0 var(--ds-space-10);
  height: var(--ds-nav-height);
}

.nav-logo {
  font-family: var(--ds-font-mono);
  font-size: var(--ds-text-lg);
  font-weight: var(--ds-weight-semibold);
  background: var(--ds-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--ds-space-10);
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  font-weight: var(--ds-weight-medium);
  color: var(--ds-text-secondary);
  text-decoration: none;
  transition: var(--ds-transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--ds-text-primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--ds-gradient-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--ds-duration-normal) var(--ds-ease-out);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--ds-surface-2) 25%,
    var(--ds-surface-3) 50%,
    var(--ds-surface-2) 75%
  );
  background-size: 200% 100%;
  animation: ds-shimmer 1.5s infinite;
  border-radius: var(--ds-radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--ds-space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--ds-space-4);
}

.skeleton-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: var(--ds-radius-full);
}

.skeleton-card {
  height: 200px;
}

/* Spinner */
.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--ds-surface-3);
  border-top-color: var(--ds-primary);
  border-radius: var(--ds-radius-full);
  animation: ds-rotate 0.8s linear infinite;
}

.spinner-sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
}

.spinner-lg {
  width: 3rem;
  height: 3rem;
  border-width: 4px;
}

/* ============================================
   SCROLL REVEAL ANIMATION
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--ds-duration-slow) var(--ds-ease-out),
    transform var(--ds-duration-slow) var(--ds-ease-out);
}

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

.reveal-left {
  transform: translateX(-30px);
}

.reveal-left.active {
  transform: translateX(0);
}

.reveal-right {
  transform: translateX(30px);
}

.reveal-right.active {
  transform: translateX(0);
}

.reveal-scale {
  transform: scale(0.95);
}

.reveal-scale.active {
  transform: scale(1);
}

/* ============================================
   TOOLTIP
   ============================================ */

.tooltip {
  position: relative;
}

.tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--ds-space-2) var(--ds-space-3);
  font-size: var(--ds-text-sm);
  color: var(--ds-text-primary);
  background: var(--ds-bg-elevated);
  border: 1px solid var(--ds-border-default);
  border-radius: var(--ds-radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--ds-transition-fast);
  z-index: var(--ds-z-tooltip);
}

.tooltip:hover::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}