/**
 * Component Styles
 * Buttons, cards, forms, modals, and other reusable components
 */

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

.px-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  border: var(--border-width-md) solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
  text-decoration: none;
  user-select: none;
}

.px-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.px-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-inset);
}

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

.px-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Button variants */
.px-btn-primary {
  background-color: var(--color-accent-primary);
  border-color: var(--color-sage-dark);
  color: white;
}

.px-btn-primary:hover {
  background-color: var(--color-sage-dark);
}

.px-btn-secondary {
  background-color: var(--color-accent-secondary);
  border-color: var(--color-charcoal-dark);
  color: white;
}

.px-btn-secondary:hover {
  background-color: var(--color-charcoal-dark);
}

.px-btn-small {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-sm);
  border-width: var(--border-width-sm);
}

/* Button icon */
.btn-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon::before {
  content: '◆';
  font-size: var(--text-sm);
  line-height: 1;
  display: block;
}

/* Filter buttons */
.filter-btn {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  border: var(--border-width-sm) solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.filter-btn:hover {
  background-color: var(--color-sage-lightest);
  color: var(--color-text-primary);
}

.filter-btn.active {
  background-color: var(--color-accent-primary);
  border-color: var(--color-sage-dark);
  color: white;
  box-shadow: var(--shadow-sm);
}

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

.experience-card,
.project-card,
.stat-card {
  background-color: var(--color-surface);
  padding: var(--space-lg);
  transition: all var(--duration-base) var(--ease-out);
}

.experience-card:hover,
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Card header */
.card-header {
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
  color: var(--color-accent-primary);
}

.card-org {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  font-weight: var(--weight-medium);
}

.card-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  font-style: italic;
}

/* Card achievements list */
.card-achievements {
  list-style: none;
  padding-left: 0;
}

.card-achievements li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  font-family: var(--font-readable);
  font-size: 15px;
}

.card-achievements li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-accent-primary);
  font-weight: bold;
}

.card-achievements li:last-child {
  margin-bottom: 0;
}

/* Card links */
.card-links {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 2px solid var(--color-border-light);
}

.px-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-accent-primary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.px-link:hover {
  color: var(--color-sage-dark);
  text-decoration: underline;
}

.px-link::after {
  content: '→';
  font-size: var(--text-xs);
}

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

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-thumbnail {
  width: 100%;
  height: 200px;
  background-color: var(--color-sage-lightest);
  border-bottom: var(--border-width-sm) solid var(--color-border);
  margin: calc(var(--space-lg) * -1);
  margin-bottom: var(--space-md);
  object-fit: cover;
  image-rendering: pixelated;
}

.project-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.project-tag {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  background-color: var(--color-sage-lightest);
  border: 1px solid var(--color-sage-light);
  color: var(--color-sage-dark);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-description {
  flex: 1;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: var(--leading-relaxed);
  font-family: var(--font-readable);
  font-size: 15px;
}

.project-links {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

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

.stat-card {
  text-align: center;
  padding: var(--space-xl);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== SKILL BADGES ===== */

.skill-badge-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.skill-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: var(--color-surface);
  transition: all var(--duration-fast) var(--ease-out);
  min-height: 80px;
  box-sizing: border-box;
  cursor: pointer;
  position: relative;
  width: 100%;
  border: var(--border-width-md) solid var(--color-border);
}

.skill-badge:hover {
  background-color: var(--color-sage-lightest);
  transform: translateY(-2px);
}

.skill-badge.expanded {
  background-color: var(--color-sage-light);
}

.skill-expand-icon {
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  font-size: var(--text-lg);
  color: var(--color-accent-primary);
  font-weight: bold;
  transition: transform var(--duration-fast) var(--ease-out);
}

.skill-badge.expanded .skill-expand-icon {
  transform: rotate(45deg);
}

.sub-skills {
  display: none;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm);
  background-color: var(--color-sage-lightest);
  border: var(--border-width-sm) solid var(--color-sage-light);
  animation: slideDown 0.3s ease-out;
}

.sub-skills.show {
  display: flex;
}

.sub-skill-item {
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-family: var(--font-readable);
  text-align: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.sub-skill-item:hover {
  background-color: var(--color-cream-light);
  color: var(--color-text-primary);
  border-color: var(--color-sage-light);
}

.skill-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  background-color: var(--color-accent-primary);
  border: var(--border-width-sm) solid var(--color-sage-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  box-sizing: border-box;
  overflow: hidden;
  padding: 4px;
}

.skill-icon::before {
  content: '◆';
  font-size: 10px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.skill-icon[data-icon="code"]::before { content: '</>' }
.skill-icon[data-icon="design"]::before { content: '◆' }
.skill-icon[data-icon="data"]::before { content: '▣' }
.skill-icon[data-icon="web"]::before { content: '◈' }
.skill-icon[data-icon="cloud"]::before { content: '☁' }
.skill-icon[data-icon="python"]::before { content: '~' }
.skill-icon[data-icon="fullstack"]::before { content: '≡' }

.skill-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  text-align: center;
}

/* ===== FORMS ===== */

.contact-form {
  max-width: 600px;
  margin: 0;
  padding: var(--space-xl);
  background-color: var(--color-surface);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  background-color: var(--color-bg);
  border: var(--border-width-sm) solid var(--color-border);
  color: var(--color-text-primary);
  transition: all var(--duration-fast) var(--ease-out);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-focus);
  box-shadow: 0 0 0 2px var(--color-focus-ring);
}

.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-body);
}

.form-error {
  display: block;
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-error);
  min-height: 20px;
}

.form-status {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border: var(--border-width-sm) solid transparent;
  font-size: var(--text-sm);
  text-align: center;
}

.form-status.success {
  background-color: rgba(107, 179, 107, 0.1);
  border-color: var(--color-success);
  color: var(--color-success);
}

.form-status.error {
  background-color: rgba(216, 80, 80, 0.1);
  border-color: var(--color-error);
  color: var(--color-error);
}

/* ===== SOCIAL LINKS ===== */

.social-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--duration-base) var(--ease-out);
}

.social-link:hover {
  background-color: var(--color-sage-lightest);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--color-text-primary);
  text-decoration: none;
}

.social-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-2xl);
  font-weight: bold;
}

.social-icon[data-icon="github"]::before { content: 'GH'; font-size: var(--text-base); }
.social-icon[data-icon="linkedin"]::before { content: 'in'; font-size: var(--text-base); }
.social-icon[data-icon="email"]::before { content: '@'; }
.social-icon[data-icon="twitter"]::before { content: '𝕏'; font-size: var(--text-lg); }

.social-label {
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: var(--text-sm);
}

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

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal[hidden] {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: var(--z-modal-overlay);
  animation: fadeIn var(--duration-base) var(--ease-out);
}

.modal-content {
  position: relative;
  z-index: var(--z-modal);
  background-color: var(--color-surface);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  animation: slideInUp var(--duration-base) var(--ease-out);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: var(--border-width-sm) solid var(--color-border);
}

.modal-title {
  font-size: var(--text-xl);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-text-secondary);
  background-color: transparent;
  border: var(--border-width-sm) solid var(--color-border);
}

.modal-close:hover {
  background-color: var(--color-error);
  border-color: var(--color-error);
  color: white;
}

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

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

.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== ACADEMIC STATS BAR GRAPHS ===== */

.academic-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 800px;
}

.stat-bar-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.stat-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xs);
}

.stat-bar-label {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  font-family: var(--font-heading);
}

.stat-bar-value {
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  color: var(--color-accent-primary);
  font-family: var(--font-mono);
}

.stat-bar-track {
  height: 32px;
  background-color: var(--color-sage-lightest);
  border: var(--border-width-md) solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.stat-bar-fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-accent-primary) 0%,
    var(--color-sage-dark) 100%
  );
  border-right: var(--border-width-sm) solid var(--color-sage-darkest);
  transition: width 1s ease-out;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.2) 0%,
    rgba(255, 255, 255, 0) 100%
  );
}

/* Hidden state for stats section */
.hidden {
  display: none !important;
}

/* Stats section animation when shown */
.stats-section:not(.hidden) {
  animation: slideDown 0.4s ease-out;
}

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

/* ===== TOOLTIPS (optional) ===== */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-charcoal-darkest);
  color: white;
  font-size: var(--text-xs);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-out);
  z-index: var(--z-tooltip);
}

[data-tooltip]:hover::after {
  opacity: 1;
}

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

@media (max-width: 768px) {
  .modal-content {
    max-height: 90vh;
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
  
  .social-icon {
    width: 40px;
    height: 40px;
    font-size: var(--text-xl);
  }
  
  .stat-value {
    font-size: var(--text-3xl);
  }
  
  .stat-bar-label {
    font-size: var(--text-base);
  }
  
  .stat-bar-value {
    font-size: var(--text-sm);
  }
  
  .stat-bar-track {
    height: 28px;
  }
  
  .academic-stats {
    gap: var(--space-lg);
  }
}