/* ============================================
   RIBER SHAMO ELIAS - PERSONAL WEBSITE
   Structure. Change. Discipline.
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: linear-gradient(135deg, #0f1115 0%, #1a1d24 100%);
  color: #e0e0e0;
  line-height: 1.6;
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin-bottom: 15px;
  color: #ffffff;
}

h1 {
  font-size: 3.5em;
  line-height: 1.1;
  margin-bottom: 20px;
}

h2 {
  font-size: 2.5em;
  margin-bottom: 40px;
  text-align: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h3 {
  font-size: 1.3em;
  margin-bottom: 10px;
}

p {
  color: #b0b0b0;
  margin-bottom: 20px;
  font-size: 1.05em;
}

a {
  color: #667eea;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #764ba2;
}

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

.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 17, 21, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(102, 126, 234, 0.2);
  z-index: 1000;
  padding: 15px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8em;
  font-weight: 800;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  color: #b0b0b0;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: #667eea;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  margin-top: 100px;
  padding: 100px 20px;
  min-height: calc(100vh - 100px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  gap: 60px;
}

.hero-content {
  flex: 1;
  text-align: center;
}

.avatar {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 3px solid #667eea;
  margin-bottom: 30px;
  object-fit: cover;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero h1 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 3.5em;
  margin-bottom: 15px;
}

.tagline {
  font-size: 1.5em;
  color: #667eea;
  font-weight: 600;
  margin-bottom: 15px;
}

.subtitle {
  font-size: 1.2em;
  color: #888;
  margin-bottom: 40px;
  max-width: 600px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 15px 40px;
  margin: 10px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  font-size: 1.05em;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: transparent;
  border: 2px solid #667eea;
  color: #667eea;
}

.btn-secondary:hover {
  background: rgba(102, 126, 234, 0.1);
  transform: translateY(-3px);
}

/* Hero Animation */
.hero-animation {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.floating-card {
  font-size: 8em;
  animation: bounce 2s ease-in-out infinite;
  opacity: 0.8;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-30px) rotate(5deg);
  }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
  padding: 80px 20px;
  background: rgba(102, 126, 234, 0.05);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  font-size: 1.1em;
  line-height: 1.8;
  color: #b0b0b0;
  margin-bottom: 30px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.stat {
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid rgba(102, 126, 234, 0.2);
  text-align: center;
}

.stat h3 {
  color: #667eea;
  font-size: 2.5em;
  margin-bottom: 10px;
}

.stat p {
  color: #888;
  margin: 0;
  font-size: 0.9em;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 8px;
  padding: 25px;
  transition: all 0.3s ease;
}

.value-card:hover {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.1);
  transform: translateX(10px);
}

.value-card h3 {
  color: #667eea;
  margin-bottom: 10px;
}

.value-card p {
  color: #888;
  margin: 0;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects {
  padding: 80px 20px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.project-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 12px;
  padding: 30px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.1);
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 15px;
}

.project-header h3 {
  margin: 0;
  font-size: 1.3em;
}

.project-tag {
  background: rgba(102, 126, 234, 0.2);
  color: #667eea;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8em;
  font-weight: 600;
}

.project-card p {
  color: #888;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.project-tech span {
  background: rgba(102, 126, 234, 0.1);
  color: #667eea;
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.85em;
  border: 1px solid rgba(102, 126, 234, 0.3);
}

.project-link {
  color: #667eea;
  font-weight: 600;
  display: inline-block;
  transition: all 0.3s ease;
}

.project-link:hover {
  color: #764ba2;
  transform: translateX(5px);
}

/* ============================================
   SKILLS SECTION
   ============================================ */

.skills {
  padding: 80px 20px;
  background: rgba(102, 126, 234, 0.05);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 50px;
}

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

.skill-category h3 {
  color: #667eea;
  margin-bottom: 20px;
  font-size: 1.3em;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.skill-badge {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
  border: 1px solid rgba(102, 126, 234, 0.3);
  color: #667eea;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9em;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-block;
}

.skill-badge:hover {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.4), rgba(118, 75, 162, 0.4));
  border-color: #667eea;
  transform: translateY(-2px);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
  padding: 80px 20px;
}

.contact-subtitle {
  text-align: center;
  font-size: 1.1em;
  color: #888;
  margin-bottom: 50px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.contact-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.contact-card:hover {
  border-color: #667eea;
  background: rgba(102, 126, 234, 0.1);
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.contact-card h3 {
  color: #667eea;
  margin-bottom: 10px;
  font-size: 1.2em;
}

.contact-card p {
  color: #888;
  margin: 0;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: rgba(0, 0, 0, 0.4);
  border-top: 1px solid rgba(102, 126, 234, 0.2);
  padding: 40px 20px;
  text-align: center;
  color: #666;
}

.footer p {
  margin-bottom: 20px;
  color: #666;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #667eea;
  font-weight: 500;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #764ba2;
}

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

@media (max-width: 768px) {
  .nav-menu {
    gap: 15px;
  }

  h1 {
    font-size: 2.5em;
  }

  h2 {
    font-size: 1.8em;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    margin-top: 80px;
    padding: 40px 20px;
  }

  .hero-animation {
    min-height: 250px;
  }

  .floating-card {
    font-size: 5em;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .btn {
    padding: 12px 30px;
    margin: 8px;
  }

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

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: 2em;
  }

  h2 {
    font-size: 1.5em;
  }

  .nav-menu {
    gap: 10px;
    font-size: 0.9em;
  }

  .logo {
    font-size: 1.3em;
  }

  .tagline {
    font-size: 1.2em;
  }

  .subtitle {
    font-size: 1em;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .project-card {
    padding: 20px;
  }

  .contact-card {
    padding: 25px;
  }

  .footer-links {
    gap: 15px;
  }
}

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Smooth transitions for all interactive elements */
button, a, input, textarea {
  transition: all 0.3s ease;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.text-muted {
  color: #888;
}

.mb-0 {
  margin-bottom: 0;
}

.mt-0 {
  margin-top: 0;
}