/*
 * Developer Landing Page - Modern Dark Theme
 * Author: Breno Miranda
 * Version: 1.0.0
 */

/* ============================================
   CSS VARIABLES - Design System
   ============================================ */
:root {
  /* Colors - Dark Theme */
  --dev-bg-primary: #0a0a0f;
  --dev-bg-secondary: #12121a;
  --dev-bg-card: #1a1a25;
  --dev-bg-card-hover: #222230;
  --dev-bg-gradient: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
  
  /* Accent Colors */
  --dev-accent-primary: #6366f1;
  --dev-accent-secondary: #8b5cf6;
  --dev-accent-tertiary: #06b6d4;
  --dev-accent-success: #10b981;
  --dev-accent-warning: #f59e0b;
  --dev-accent-danger: #ef4444;
  
  /* Gradient Accents */
  --dev-gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --dev-gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  --dev-gradient-text: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  
  /* Text Colors */
  --dev-text-primary: #f8fafc;
  --dev-text-secondary: #94a3b8;
  --dev-text-muted: #64748b;
  
  /* Borders */
  --dev-border-color: rgba(99, 102, 241, 0.15);
  --dev-border-glow: rgba(99, 102, 241, 0.4);
  
  /* Shadows */
  --dev-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --dev-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --dev-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
  --dev-shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
  
  /* Typography */
  --dev-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --dev-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --dev-section-padding: 100px 0;
  --dev-container-max: 1200px;
  
  /* Transitions */
  --dev-transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --dev-transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --dev-transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Border Radius */
  --dev-radius-sm: 8px;
  --dev-radius-md: 12px;
  --dev-radius-lg: 20px;
  --dev-radius-xl: 30px;
}

/* ============================================
   BASE STYLES
   ============================================ */
body[data-bs-theme="dark"] {
  font-family: var(--dev-font-primary);
  background: var(--dev-bg-primary);
  color: var(--dev-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Background Pattern */
body[data-bs-theme="dark"]::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(139, 92, 246, 0.1), transparent),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(6, 182, 212, 0.1), transparent);
  pointer-events: none;
  z-index: -1;
}

/* Grid Pattern Overlay */
body[data-bs-theme="dark"]::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--dev-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--dev-accent-primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dev-accent-secondary);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--dev-font-primary);
  font-weight: 700;
  color: var(--dev-text-primary);
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--dev-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.font-mono {
  font-family: var(--dev-font-mono);
}

/* ============================================
   HERO SECTION
   ============================================ */
.dev-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}

.dev-hero-content {
  position: relative;
  z-index: 2;
}

.dev-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--dev-border-color);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dev-accent-primary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}

.dev-hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--dev-accent-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.dev-hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.dev-hero-subtitle {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--dev-text-secondary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.dev-hero-description {
  font-size: 1.125rem;
  color: var(--dev-text-muted);
  max-width: 600px;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

/* Tech Stack Pills */
.dev-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.dev-tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dev-text-secondary);
  transition: var(--dev-transition-base);
}

.dev-tech-pill:hover {
  background: var(--dev-bg-card-hover);
  border-color: var(--dev-accent-primary);
  color: var(--dev-text-primary);
  transform: translateY(-2px);
}

.dev-tech-pill i {
  font-size: 1.1rem;
}

/* Hero Actions */
.dev-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  animation: fadeInUp 0.6s ease-out 0.5s both;
}

/* Hero Image/Avatar */
.dev-hero-visual {
  position: relative;
  animation: fadeIn 1s ease-out 0.3s both;
}

.dev-avatar-wrapper {
  position: relative;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.dev-avatar {
  position: relative;
  padding: 20px;
}

.dev-avatar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dev-gradient-primary);
  border-radius: var(--dev-radius-xl);
  opacity: 0.1;
  filter: blur(40px);
  animation: pulse 4s ease-in-out infinite;
}

.dev-avatar-image {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--dev-radius-xl);
  background: var(--dev-bg-card);
  border: 2px solid var(--dev-border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.dev-avatar-image i {
  font-size: 8rem;
  background: var(--dev-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Floating Elements */
.dev-floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.dev-floating-item {
  position: absolute;
  padding: 12px 16px;
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dev-text-secondary);
  box-shadow: var(--dev-shadow-md);
  animation: float 6s ease-in-out infinite;
}

.dev-floating-item:nth-child(1) {
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.dev-floating-item:nth-child(2) {
  bottom: 20%;
  left: -5%;
  animation-delay: 2s;
}

.dev-floating-item:nth-child(3) {
  bottom: 10%;
  right: 5%;
  animation-delay: 4s;
}

.dev-floating-item i {
  margin-right: 8px;
  color: var(--dev-accent-primary);
}

/* ============================================
   BUTTONS
   ============================================ */
.dev-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--dev-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--dev-transition-base);
  text-decoration: none;
}

.dev-btn-primary {
  background: var(--dev-gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.dev-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
  color: white;
}

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

.dev-btn-secondary:hover {
  background: var(--dev-bg-card);
  border-color: var(--dev-accent-primary);
  color: var(--dev-text-primary);
  transform: translateY(-3px);
}

.dev-btn i {
  font-size: 1.1rem;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.dev-section {
  padding: var(--dev-section-padding);
  position: relative;
}

.dev-section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.dev-section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--dev-border-color);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--dev-accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.dev-section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 16px;
}

.dev-section-description {
  font-size: 1.125rem;
  color: var(--dev-text-secondary);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.dev-skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.dev-skill-card {
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-lg);
  padding: 32px;
  transition: var(--dev-transition-base);
  position: relative;
  overflow: hidden;
}

.dev-skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--dev-gradient-primary);
  opacity: 0;
  transition: var(--dev-transition-base);
}

.dev-skill-card:hover {
  transform: translateY(-8px);
  border-color: var(--dev-accent-primary);
  box-shadow: var(--dev-shadow-glow);
}

.dev-skill-card:hover::before {
  opacity: 1;
}

.dev-skill-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--dev-radius-md);
  margin-bottom: 20px;
}

.dev-skill-icon i {
  font-size: 1.75rem;
  color: var(--dev-accent-primary);
}

.dev-skill-title {
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.dev-skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dev-skill-list li {
  padding: 6px 12px;
  background: var(--dev-bg-secondary);
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--dev-text-secondary);
  transition: var(--dev-transition-fast);
}

.dev-skill-list li:hover {
  background: rgba(99, 102, 241, 0.1);
  color: var(--dev-accent-primary);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.dev-timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.dev-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--dev-accent-primary), var(--dev-accent-tertiary));
}

@media (min-width: 768px) {
  .dev-timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
}

.dev-timeline-item {
  position: relative;
  padding-left: 60px;
  padding-bottom: 40px;
}

@media (min-width: 768px) {
  .dev-timeline-item {
    padding-left: 0;
    padding-right: 0;
    width: 50%;
  }
  
  .dev-timeline-item:nth-child(odd) {
    margin-left: auto;
    padding-left: 40px;
  }
  
  .dev-timeline-item:nth-child(even) {
    padding-right: 40px;
    text-align: right;
  }
}

.dev-timeline-dot {
  position: absolute;
  left: 12px;
  top: 0;
  width: 18px;
  height: 18px;
  background: var(--dev-accent-primary);
  border: 3px solid var(--dev-bg-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

@media (min-width: 768px) {
  .dev-timeline-item:nth-child(odd) .dev-timeline-dot {
    left: -9px;
  }
  
  .dev-timeline-item:nth-child(even) .dev-timeline-dot {
    right: -9px;
    left: auto;
  }
}

.dev-timeline-card {
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-lg);
  padding: 28px;
  transition: var(--dev-transition-base);
}

.dev-timeline-card:hover {
  border-color: var(--dev-accent-primary);
  box-shadow: var(--dev-shadow-glow);
}

.dev-timeline-role {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.dev-timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

@media (min-width: 768px) {
  .dev-timeline-item:nth-child(even) .dev-timeline-tech {
    justify-content: flex-end;
  }
}

.dev-timeline-tech span {
  padding: 4px 10px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--dev-accent-primary);
}

/* ============================================
   EDUCATION SECTION
   ============================================ */
.dev-education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.dev-education-card {
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-lg);
  padding: 28px;
  transition: var(--dev-transition-base);
  text-align: center;
}

.dev-education-card:hover {
  transform: translateY(-5px);
  border-color: var(--dev-accent-tertiary);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.2);
}

.dev-education-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--dev-radius-md);
  margin: 0 auto 16px;
}

.dev-education-icon i {
  font-size: 1.5rem;
  color: var(--dev-accent-tertiary);
}

.dev-education-title {
  font-size: 1rem;
  margin-bottom: 8px;
}

.dev-education-institution {
  font-size: 0.875rem;
  color: var(--dev-text-muted);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.dev-contact-wrapper {
  background: var(--dev-bg-card);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-xl);
  padding: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.dev-contact-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
  animation: rotate 20s linear infinite;
}

.dev-contact-content {
  position: relative;
  z-index: 1;
}

.dev-contact-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  margin-bottom: 16px;
}

.dev-contact-description {
  font-size: 1.125rem;
  color: var(--dev-text-secondary);
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.dev-contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.dev-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: var(--dev-bg-secondary);
  border: 1px solid var(--dev-border-color);
  border-radius: var(--dev-radius-md);
  color: var(--dev-text-primary);
  text-decoration: none;
  transition: var(--dev-transition-base);
}

.dev-contact-link:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--dev-accent-primary);
  color: var(--dev-text-primary);
  transform: translateY(-3px);
  box-shadow: var(--dev-shadow-glow);
}

.dev-contact-link i {
  font-size: 1.25rem;
  color: var(--dev-accent-primary);
}

/* ============================================
   FOOTER
   ============================================ */
.dev-footer {
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid var(--dev-border-color);
}

.dev-footer-text {
  color: var(--dev-text-muted);
  font-size: 0.875rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.05);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Scroll Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 991px) {
  .dev-hero {
    padding: 100px 0 60px;
  }
  
  .dev-hero-visual {
    margin-top: 60px;
  }
  
  .dev-floating-item {
    display: none;
  }
  
  .dev-contact-wrapper {
    padding: 40px 24px;
  }
}

@media (max-width: 576px) {
  .dev-hero-actions {
    flex-direction: column;
  }
  
  .dev-btn {
    width: 100%;
    justify-content: center;
  }
  
  .dev-contact-links {
    flex-direction: column;
  }
  
  .dev-contact-link {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   HEADER OVERRIDE
   ============================================ */
#head .navbar {
  background: rgba(10, 10, 15, 0.8) !important;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dev-border-color);
}

#head .navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
}

#head .nav-link {
  color: var(--dev-text-secondary) !important;
  transition: var(--dev-transition-fast);
}

#head .nav-link:hover {
  color: var(--dev-text-primary) !important;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-gradient {
  background: var(--dev-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow-effect {
  box-shadow: var(--dev-shadow-glow);
}