/* 
=============================
Portfolio - Lucas Oliveira
Modern Web 3.0 Design
=============================
*/

/* ===== CSS Variables ===== */
:root {
  /* Color Palette */
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --secondary: #10b981;
  --secondary-light: #34d399;
  --secondary-dark: #059669;
  --dark: #1e293b;
  --dark-light: #334155;
  --light: #f8fafc;
  --gray: #94a3b8;
  --gray-light: #cbd5e1;
  --gray-dark: #64748b;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  --gradient-mixed: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-dark: linear-gradient(135deg, var(--dark), var(--dark-light));
  
  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.1);
  
  /* Glass Effect */
  --glass-background: rgba(255, 255, 255, 0.08);
  --glass-background-dark: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Typography */
  --font-primary: 'Plus Jakarta Sans', sans-serif;
  --font-secondary: 'Outfit', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===== Base Styles ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--dark);
  color: var(--light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

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

ul, ol {
  list-style: none;
}

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

input, button, textarea {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.3;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===== Background Elements ===== */
.bg-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.bg-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.circle-1 {
  width: 50vw;
  height: 50vw;
  background: var(--primary);
  top: -15%;
  right: -15%;
  animation: float 15s ease-in-out infinite alternate;
}

.circle-2 {
  width: 30vw;
  height: 30vw;
  background: var(--secondary);
  bottom: -10%;
  left: -5%;
  animation: float 12s ease-in-out infinite alternate-reverse;
}

.circle-3 {
  width: 25vw;
  height: 25vw;
  background: var(--primary-dark);
  top: 60%;
  right: 10%;
  animation: float 18s ease-in-out infinite alternate;
}

.bg-blur {
  position: absolute;
  border-radius: var(--radius-lg);
  filter: blur(120px);
  opacity: 0.15;
}

.blur-1 {
  width: 60vw;
  height: 50vh;
  background: var(--primary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: rotate 25s linear infinite;
}

.blur-2 {
  width: 40vw;
  height: 60vh;
  background: var(--secondary);
  top: 30%;
  left: 20%;
  animation: rotate-reverse 30s linear infinite;
}

@keyframes float {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  100% {
    transform: translateY(30px) rotate(5deg);
  }
}

@keyframes rotate {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes rotate-reverse {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-normal);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  transition: var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  width: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--light);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--glass-background);
  color: var(--light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.btn-secondary:hover {
  background: var(--glass-background-dark);
  transform: translateY(-2px);
}

.btn i {
  margin-right: 0.5rem;
}

.btn-full {
  width: 100%;
}

/* ===== Header/Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: rgba(30, 41, 59, 0.8);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-symbol {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.5rem;
  margin-right: 1rem;
}

.logo-text {
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 1.25rem;
  background: var(--gradient-mixed);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-list {
  display: flex;
  gap: 2rem;
}

.nav-link {
  position: relative;
  font-weight: 500;
  font-size: 1rem;
  color: var(--light);
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-mixed);
  transition: var(--transition-normal);
}

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

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 24px;
  height: 24px;
  position: relative;
}

.menu-icon, 
.menu-icon::before, 
.menu-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--light);
  position: absolute;
  transition: var(--transition-normal);
}

.menu-icon::before {
  content: '';
  top: -8px;
}

.menu-icon::after {
  content: '';
  bottom: -8px;
}

.menu-toggle.active .menu-icon {
  background-color: transparent;
}

.menu-toggle.active .menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle.active .menu-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* ===== Hero Section ===== */
.hero-section {
  padding: 160px 0 120px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.subtitle {
  display: inline-block;
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: var(--spacing-sm);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

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

.hero-description {
  font-size: 1.1rem;
  color: var(--gray-light);
  margin-bottom: var(--spacing-lg);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-container {
  position: relative;
  width: 400px;
  height: 400px;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 3px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.profile-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--gradient-primary);
  color: var(--light);
  padding: 1rem;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-md);
}

.badge-number {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
}

.badge-text {
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
}

/* ===== Section Styles ===== */
.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.text-left {
  text-align: left;
  margin-left: 0;
}

.section-subtitle {
  display: inline-block;
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: var(--spacing-sm);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-mixed);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-description {
  font-size: 1.1rem;
  color: var(--gray-light);
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ===== Services Section ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition-normal);
  box-shadow: var(--glass-shadow);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  border-color: var(--primary-light);
}

.service-icon {
  width: 70px;
  height: 70px;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.8rem;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--gray-light);
  flex-grow: 1;
}

/* ===== Skills Section ===== */
.skills-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.tech-carousel {
  position: relative;
  width: 100%;
  padding: var(--spacing-lg) 0;
}

.tech-row {
  display: flex;
  white-space: nowrap;
  animation-duration: 35s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

.row-1 {
  animation-name: scrollLeft;
}

.row-2 {
  animation-name: scrollRight;
  margin-top: var(--spacing-md);
}

@keyframes scrollLeft {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

@keyframes scrollRight {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(0);
  }
}

.tech-tag {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: 0.75rem 1.5rem;
  margin-right: var(--spacing-md);
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition-normal);
  display: inline-block;
  white-space: nowrap;
}

.tech-tag:hover {
  background: var(--gradient-primary);
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
  border-color: var(--primary-light);
  cursor: pointer;
}

/* Duplicate tags for continuous scrolling */
.tech-row > .tech-tag {
  animation: glow 3s infinite alternate;
}

.tech-row > .tech-tag:nth-child(2n) {
  animation-delay: 0.5s;
}

.tech-row > .tech-tag:nth-child(3n) {
  animation-delay: 1s;
}

.tech-row > .tech-tag:nth-child(4n) {
  animation-delay: 1.5s;
}

.tech-row > .tech-tag:nth-child(5n) {
  animation-delay: 2s;
}

@keyframes glow {
  0% {
    box-shadow: 0 0 5px rgba(99, 102, 241, 0.2);
  }
  100% {
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.6);
  }
}

/* ===== Testimonials Section ===== */
.testimonials-slider {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
}

.testimonial-card {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  position: relative;
  flex: 1;
  min-width: 300px;
  max-width: 400px;
  transition: var(--transition-normal);
  box-shadow: var(--glass-shadow);
}

.testimonial-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  border-color: var(--primary-light);
}

.testimonial-quote {
  position: absolute;
  top: -15px;
  left: 20px;
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  font-size: 1.2rem;
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.testimonial-text {
  margin-bottom: var(--spacing-md);
  color: var(--gray-light);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.6;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

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

.author-name {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  background: var(--gradient-mixed);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}

.author-title {
  font-size: 0.85rem;
  color: var(--gray);
}

/* Remove this unused section since we're no longer showing projects */
.projects-section {
  display: none;
}

/* ===== Clients Section ===== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-lg);
  align-items: center;
  justify-items: center;
}

.client-item {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  filter: grayscale(100%) opacity(0.7);
}

.client-item:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}

.client-logo {
  max-width: 100%;
  max-height: 70px;
  object-fit: contain;
}

/* ===== Contact Section ===== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.contact-details {
  margin: var(--spacing-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.contact-text h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.contact-text p {
  color: var(--gray-light);
}

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

.contact-social h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
}

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

.social-link {
  width: 50px;
  height: 50px;
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  font-size: 1.2rem;
  transition: var(--transition-normal);
}

.social-link:hover {
  background: var(--gradient-primary);
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.contact-form-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.pricing-card {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition-normal);
  box-shadow: var(--glass-shadow);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  border-color: var(--primary-light);
}

.pricing-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--light);
  text-align: center;
}

.pricing-rate {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.rate-amount {
  font-size: 3rem;
  font-weight: 700;
  background: var(--gradient-mixed);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.rate-period {
  font-size: 1.2rem;
  color: var(--gray);
}

.pricing-description {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--gray-light);
}

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

.pricing-features li {
  padding: var(--spacing-sm) 0;
  color: var(--gray-light);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
}

.pricing-features li::before {
  content: '✓';
  margin-right: var(--spacing-sm);
  color: var(--secondary);
  font-weight: 700;
}

.contact-form {
  background: var(--glass-background);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition-normal);
  box-shadow: var(--glass-shadow);
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--light);
  transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.form-message {
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: center;
  opacity: 0;
  height: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, height 0.3s ease, margin 0.3s ease, padding 0.3s ease;
}

.form-message.success,
.form-message.error {
  opacity: 1;
  height: auto;
  overflow: visible;
}

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

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #f87171;
}

/* ===== Footer ===== */
.footer {
  background: var(--glass-background-dark);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--glass-border);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-logo .logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 1.2rem;
  font-weight: 600;
}

.logo-title {
  font-size: 0.85rem;
  color: var(--gray);
}

.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.footer-menu a {
  color: var(--gray-light);
  transition: var(--transition-normal);
}

.footer-menu a:hover {
  color: var(--primary-light);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

.social-icon {
  width: 40px;
  height: 40px;
  background: var(--glass-background);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  transition: var(--transition-normal);
}

.social-icon:hover {
  background: var(--gradient-primary);
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
}

.copyright {
  color: var(--gray);
  font-size: 0.9rem;
}

.scroll-to-top {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-normal);
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 100;
}

.scroll-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Scroll Animations ===== */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate.fade-in {
  opacity: 0;
  transform: translateY(0);
}

.animate.slide-up {
  transform: translateY(30px);
}

.animate.slide-down {
  transform: translateY(-30px);
}

.animate.slide-left {
  transform: translateX(30px);
}

.animate.slide-right {
  transform: translateX(-30px);
}

.animate.scale-up {
  transform: scale(0.9);
}

.animate.scale-down {
  transform: scale(1.1);
}

.animate.in-view {
  opacity: 1;
  transform: translate(0) scale(1);
}

.delay-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

.delay-400 {
  transition-delay: 0.4s;
}

.delay-500 {
  transition-delay: 0.5s;
}

.delay-600 {
  transition-delay: 0.6s;
}

.delay-700 {
  transition-delay: 0.7s;
}

.delay-800 {
  transition-delay: 0.8s;
}

/* Media Query for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .animate {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== Media Queries ===== */
@media (max-width: 1100px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .profile-container {
    width: 350px;
    height: 350px;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-social {
    grid-column: span 2;
    justify-content: center;
  }
}

@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text {
    order: 2;
    margin: 0 auto;
  }
  
  .hero-image {
    order: 1;
    margin-bottom: var(--spacing-lg);
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .section-header.text-left {
    text-align: center;
    margin: 0 auto var(--spacing-xl);
  }
  
  .menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--glass-background-dark);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: 999;
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

@media (max-width: 700px) {
  html {
    font-size: 14px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .profile-container {
    width: 280px;
    height: 280px;
  }
  
  .profile-badge {
    bottom: -15px;
    right: -15px;
    padding: 0.75rem;
  }
  
  .badge-number {
    font-size: 1.5rem;
  }
  
  .badge-text {
    font-size: 0.75rem;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .footer-logo {
    justify-content: center;
  }
  
  .footer-social {
    grid-column: span 1;
    justify-content: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}