/* ==========================================================================
   COMPONENT STYLES
   ========================================================================== */

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-8);
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: var(--text-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px; /* Touch-friendly */
  line-height: 1.2;
}

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

.btn.btn-primary,
.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark)) !important;
  color: white !important;
  box-shadow: 0 2px 4px rgba(0, 53, 148, 0.2);
  border: none;
}

.btn.btn-primary:hover,
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 53, 148, 0.4);
  color: white !important;
}

.btn.btn-primary:active,
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 53, 148, 0.2);
  color: white !important;
}

/* Add visual feedback for navigation buttons */
.btn-primary[href^="#"]:active,
.btn-secondary[href^="#"]:active {
  transform: scale(0.98);
  transition: transform 0.1s ease;
}

.btn-primary[href^="#"]:hover::after,
.btn-secondary[href^="#"]:hover::after {
  content: ' ↓';
  display: inline-block;
  margin-left: var(--space-2);
  font-size: 0.9em;
  animation: bounce 1s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-3px);
  }
  60% {
    transform: translateY(-2px);
  }
}

.btn-secondary {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
  background: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
  position: relative;
  overflow: hidden;
}

.btn-outline:hover {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 53, 148, 0.3);
}

.btn-outline:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 53, 148, 0.2);
}

/* Add download icon for resume button */
.btn-outline[href*="resume"]::after,
.btn-outline[href*="pdf"]::after {
  content: ' ↓';
  display: inline-block;
  margin-left: var(--space-2);
  font-size: 0.9em;
  transition: transform var(--transition-base);
}

.btn-outline[href*="resume"]:hover::after,
.btn-outline[href*="pdf"]:hover::after {
  transform: translateY(2px);
}

/* Form Components */
.contact-form {
  background: var(--bg-primary);
  padding: var(--space-8);
  border-radius: 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: 0.5rem;
  font-size: var(--text-base);
  font-family: var(--font-primary);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  background-color: var(--bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

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

/* Input validation states */
.form-group input:invalid,
.form-group textarea:invalid {
  border-color: var(--error);
}

.form-group input:valid,
.form-group textarea:valid {
  border-color: var(--success);
}

.form-error {
  color: var(--error);
  font-size: var(--text-sm);
  margin-top: var(--space-1);
  display: block;
}

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-radius: 0.5rem;
  font-size: var(--text-sm);
  text-align: center;
}

.form-status.success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Loading States */
.btn.loading {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: flex !important;
  align-items: center;
  gap: var(--space-2);
}

.loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Form Help Text */
.form-help {
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
  display: block;
}

.form-disclaimer {
  margin-top: var(--space-4);
  text-align: center;
  color: var(--text-tertiary);
}

/* Card Components */
.card {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: var(--space-6);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-slow);
  border: 1px solid var(--border-light);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.card-content {
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-light);
}

/* Badge Components */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: 9999px;
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
}

.badge-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  color: white;
}

.badge-secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.badge-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
}

/* Tech Badge & Skill Badge Tooltips */
.tech-badge,
.skill-badge {
  position: relative;
  cursor: help;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.tech-badge:hover,
.skill-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 53, 148, 0.2);
}

/* Mobile Info Icon */
.badge-info-icon {
  display: none;
  width: 14px;
  height: 14px;
  background: rgba(0, 53, 148, 0.7);
  color: white;
  border-radius: 50%;
  font-size: 10px;
  text-align: center;
  line-height: 14px;
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

.badge-info-icon:hover {
  background: var(--primary-blue);
  transform: scale(1.1);
}

/* Show info icon on touch devices */
@media (hover: none) and (pointer: coarse) {
  .tech-badge[data-tooltip] .badge-info-icon,
  .skill-badge[data-tooltip] .badge-info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Hide hover tooltips on touch devices */
  .tech-badge[data-tooltip]:hover:before,
  .tech-badge[data-tooltip]:hover:after,
  .skill-badge[data-tooltip]:hover:before,
  .skill-badge[data-tooltip]:hover:after {
    opacity: 0;
    visibility: hidden;
  }
}

.tech-badge[data-tooltip],
.skill-badge[data-tooltip] {
  position: relative;
}

.tech-badge[data-tooltip]:before,
.skill-badge[data-tooltip]:before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: var(--space-3) var(--space-4);
  border-radius: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 400;
  white-space: nowrap;
  max-width: 250px;
  white-space: normal;
  text-align: center;
  line-height: 1.4;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 1000;
  margin-bottom: var(--space-2);
  pointer-events: none;
}

.tech-badge[data-tooltip]:after,
.skill-badge[data-tooltip]:after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--text-primary);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 1000;
  margin-bottom: -6px;
  pointer-events: none;
}

.tech-badge[data-tooltip]:hover:before,
.tech-badge[data-tooltip]:hover:after,
.skill-badge[data-tooltip]:hover:before,
.skill-badge[data-tooltip]:hover:after {
  opacity: 1;
  visibility: visible;
}

/* Mobile Tooltip Modal */
.tooltip-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: var(--space-4);
}

.tooltip-modal.active {
  display: flex;
}

.tooltip-modal-content {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: var(--space-6);
  max-width: 350px;
  width: 100%;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  text-align: center;
  position: relative;
  animation: modalSlideIn 0.3s ease-out;
}

.tooltip-modal-title {
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
}

.tooltip-modal-text {
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.tooltip-modal-close {
  background: var(--primary-blue);
  color: white;
  border: none;
  border-radius: 0.5rem;
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.tooltip-modal-close:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Responsive tooltip positioning for desktop */
@media (max-width: 767px) and (hover: hover) {
  .tech-badge[data-tooltip]:before,
  .skill-badge[data-tooltip]:before {
    max-width: 200px;
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-3);
  }
  
  .tech-badge[data-tooltip]:hover:before,
  .skill-badge[data-tooltip]:hover:before {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* Navigation Components */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

.nav-logo {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary-blue);
  text-decoration: none;
}

.nav-menu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-8);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-blue);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

@media (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
  
  .nav-toggle {
    display: none;
  }
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: var(--space-6);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-top: 1px solid var(--border-light);
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

/* Utility Components */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

.scale-in {
  animation: scaleIn 0.4s ease-out;
}

/* Scroll Enhancement Classes */
.scrolling-active {
  cursor: wait !important;
}

.scroll-target-highlight {
  position: relative;
}

.scroll-target-highlight::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  border: 3px solid rgba(0, 53, 148, 0.3);
  border-radius: 1rem;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: -1;
}

.scroll-target-highlight.highlight-active::before {
  opacity: 1;
}

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Hover Effects */
.hover-lift {
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

/* Focus Styles */
.focus-visible:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark)) !important;
    border: 2px solid var(--primary-blue);
    color: white !important;
  }
  
  .btn-secondary {
    border-width: 3px;
  }
  
  .card {
    border-width: 2px;
  }
}