/* 
 * Main CSS file for Yali Katz's Portfolio
 * Editorial Dark Theme - Sophisticated, magazine-inspired design
 */

/* Import distinctive fonts */
@import url("https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&display=swap");

:root {
  /* Dark Theme Color Palette */
  --bg-dark: #0f0f14;
  --bg-darker: #0a0a0e;
  --bg-card: rgba(255, 255, 255, 0.02);
  --bg-elevated: rgba(255, 255, 255, 0.04);

  /* Accent Colors */
  --accent-primary: #8b5cf6;
  --accent-secondary: #06b6d4;
  --accent-pink: #ec4899;
  --accent-orange: #fb923c;

  /* Text Colors */
  --text-light: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Legacy color mappings for compatibility */
  --primary-color: var(--accent-primary);
  --primary-dark: #7c3aed;
  --primary-light: #a78bfa;
  --secondary-color: var(--bg-darker);
  --text-color: var(--text-light);
  --light-text: var(--text-light);
  --link-color: var(--accent-secondary);
  --link-hover: #22d3ee;
  --link-hover-color: #22d3ee;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --border-color: rgba(255, 255, 255, 0.1);

  /* Card and component backgrounds */
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-bg-hover: rgba(255, 255, 255, 0.06);
  --bg-secondary: rgba(255, 255, 255, 0.02);
  --heading-color: var(--text-light);
  --accent-color: var(--accent-primary);

  /* Typography */
  --font-display: "Syne", sans-serif;
  --font-main: "DM Sans", sans-serif;
  --font-heading: "Syne", sans-serif;
  --font-code: "JetBrains Mono", "Fira Code", monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Border Radius */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-xl: 28px;

  /* Shadows - deeper for dark theme */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Container Widths */
  --container-sm: 540px;
  --container-md: 720px;
  --container-lg: 1000px;
  --container-xl: 1200px;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-light);
  line-height: 1.6;
  background-color: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--link-hover);
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* Container & Layout */
.container {
  width: 100%;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-xxl) 0;
}

/* Grid System */
.grid {
  display: grid;
  grid-gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-muted);
}

/* Header & Navigation */
header {
  background: linear-gradient(180deg, var(--bg-darker) 0%, transparent 100%);
  color: var(--text-light);
  padding: var(--spacing-lg) 0;
  position: relative;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
  color: var(--text-light);
}

.site-title a {
  color: var(--text-light);
  text-decoration: none;
}

.nav-main {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-main a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-normal);
  position: relative;
}

.nav-main a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  transition: width var(--transition-normal);
}

.nav-main a:hover {
  color: var(--text-light);
  text-decoration: none;
}

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

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
  background-color: var(--bg-elevated);
}

/* Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal);
  margin-bottom: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

.card-content {
  margin-bottom: var(--spacing-md);
  color: var(--text-muted);
}

.experience-list {
  margin-left: 20px;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--primary-dark)
  );
  color: var(--text-light);
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--accent-secondary),
    var(--accent-primary)
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3);
  text-decoration: none;
  color: var(--text-light);
}

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

/* Ensure ALL button content stays above the ::before overlay */
.btn span,
.btn i,
.btn svg {
  position: relative;
  z-index: 1;
}

/* For buttons without wrapper elements - use isolation */
.btn {
  isolation: isolate;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

.btn-secondary::before {
  background: var(--accent-primary);
}

.btn-secondary:hover {
  color: var(--text-light);
  border-color: transparent;
}

/* Footer */
footer {
  background: linear-gradient(180deg, var(--bg-darker), #050507);
  color: var(--text-muted);
  padding: var(--spacing-xxl) 0;
  margin-top: 0;
  position: relative;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(139, 92, 246, 0.3),
    transparent
  );
}

.footer-content {
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.footer-info p {
  color: var(--text-dim);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-links a {
  color: var(--text-muted);
  transition: color var(--transition-normal);
}

.footer-links a:hover {
  color: var(--accent-primary);
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.social-links-footer {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.social-links-footer li a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
}

.social-links-footer li a:hover {
  background: linear-gradient(
    135deg,
    rgba(139, 92, 246, 0.2),
    rgba(6, 182, 212, 0.1)
  );
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-3px);
}

.site-metrics {
  margin-top: var(--spacing-xl);
  text-align: center;
  opacity: 0.6;
}

.social-links-footer {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

/* Note: Additional .social-links item styles are in home-styles.css for homepage */
/* Note: .profile-section, .profile-photo, .profile-content moved to home-styles.css */
/* Note: .skills-list and .skill-tag styles moved to home-styles.css for homepage */

/* Note: .skill-tag styles moved to home-styles.css for homepage */

/* Note: Education styles moved to home-styles.css for homepage */

/* Contact FAB */
.contact-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--primary-dark)
  );
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.4);
  z-index: 998;
  transition: all var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-fab:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 12px 32px rgba(139, 92, 246, 0.5);
}

.contact-fab a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  color: var(--text-light);
  font-size: 1.5rem;
}

.contact-fab a img {
  width: 28px;
  height: 28px;
  filter: brightness(0) invert(1);
}

/* ============================================
   WhatsApp Floating Action Button (FAB)
   ============================================ */
.whatsapp-fab {
  position: fixed;
  bottom: 95px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 999;
  cursor: pointer;
  transition: all 0.3s ease;
  animation: pulse 2s infinite;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-fab i {
  font-size: 32px;
  color: white;
}

.whatsapp-fab .tooltip {
  position: absolute;
  right: 75px;
  background-color: #128c7e;
  color: white;
  padding: 8px 16px;
  border-radius: 8px;
  white-space: nowrap;
  font-size: 14px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.whatsapp-fab .tooltip::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 100%;
  margin-top: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent transparent #128c7e;
}

.whatsapp-fab:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

@keyframes pulse {
  0% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow:
      0 4px 12px rgba(37, 211, 102, 0.8),
      0 0 0 10px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  }
}

/* RTL Support for WhatsApp Button */
[dir="rtl"] .whatsapp-fab {
  right: auto;
  left: 30px;
}

[dir="rtl"] .whatsapp-fab .tooltip {
  right: auto;
  left: 75px;
}

[dir="rtl"] .whatsapp-fab .tooltip::after {
  left: auto;
  right: 100%;
  border-color: transparent #128c7e transparent transparent;
}

/* ============================================
   Popup Ad Overlay
   ============================================ */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.popup-overlay.show {
  opacity: 1;
  visibility: visible;
}

.popup-content {
  background: white;
  border-radius: 16px;
  padding: 32px;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  position: relative;
  transform: scale(0.9);
  transition: transform 0.3s ease;
  text-align: center;
  direction: rtl;
}

.popup-overlay.show .popup-content {
  transform: scale(1);
}

.popup-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  font-size: 28px;
  color: #999;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
  padding: 0;
  line-height: 1;
}

.popup-close:hover {
  color: #333;
}

.popup-content h2 {
  color: #128c7e;
  margin-bottom: 16px;
  font-size: 28px;
}

.popup-content p {
  color: #333;
  margin-bottom: 24px;
  line-height: 1.6;
  font-size: 16px;
}

.popup-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.popup-btn {
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.popup-btn-primary {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: white;
}

.popup-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

.popup-btn-secondary {
  background: #f0f0f0;
  color: #666;
}

.popup-btn-secondary:hover {
  background: #e0e0e0;
}

/* RTL Support for Popup */
[dir="rtl"] .popup-close {
  right: auto;
  left: 12px;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .contact-fab {
    width: 50px;
    height: 50px;
    bottom: 15px;
    right: 20px;
  }

  .contact-fab a img {
    width: 30px;
    height: 30px;
  }

  .whatsapp-fab {
    width: 50px;
    height: 50px;
    bottom: 80px;
    right: 20px;
  }

  .whatsapp-fab i {
    font-size: 26px;
  }

  .whatsapp-fab .tooltip {
    right: 65px;
    font-size: 12px;
    padding: 6px 12px;
  }

  [dir="rtl"] .whatsapp-fab {
    left: 20px;
  }

  [dir="rtl"] .whatsapp-fab .tooltip {
    left: 65px;
  }

  .popup-content {
    padding: 24px;
    max-width: 90%;
  }

  .popup-content h2 {
    font-size: 24px;
  }

  .popup-content p {
    font-size: 14px;
  }

  .popup-btn {
    font-size: 14px;
    padding: 10px 20px;
  }
}

/* ============================================
   End of WhatsApp & Popup Styles
   ============================================ */

/* RTL Support */
[dir="rtl"] {
  text-align: right;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.hidden {
  display: none;
}

.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;
}

/* Footer contact link */
.footer-contact-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.footer-contact-link:hover {
  text-decoration: underline;
}

/* Social icon specific styling */
.social-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  color: var(--primary-color) !important;
  transition: all 0.3s ease;
}

.social-icon:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.project {
  margin-bottom: 20px;
  border-radius: 10px;
  padding: 10px;
}

.view-on-github {
  background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
  border-color: none;
  color: white;
  padding: 11px;
  border-radius: 10px;
  text-align: center;
  cursor: pointer;
}