@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* --- Design Tokens --- */
:root {
  --bg-primary: #070a13;
  --bg-secondary: #0b0f19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(16, 185, 129, 0.4);
  
  --primary: #10b981; /* Emerald Mint */
  --primary-glow: rgba(16, 185, 129, 0.2);
  --secondary: #fbbf24; /* Amber Gold */
  --secondary-glow: rgba(251, 191, 36, 0.25);
  
  --accent-cyan: #06b6d4;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dark: #4b5563;
  
  --font-sans: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --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);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* --- Glow Background Orbs --- */
body::before, body::after {
  content: "";
  position: absolute;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  z-index: -2;
  filter: blur(150px);
  opacity: 0.12;
  pointer-events: none;
}
body::before {
  top: 10%;
  left: -10%;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}
body::after {
  bottom: 20%;
  right: -10%;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

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

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

ul {
  list-style: none;
}

/* --- Utility Classes --- */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-secondary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-padding {
  padding: 8rem 0 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* --- Navigation --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(7, 10, 19, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

header.scrolled {
  padding: 0.5rem 0;
  background: rgba(7, 10, 19, 0.9);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--primary);
}

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

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition-normal);
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--primary);
}

.contact-btn {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--primary);
  color: var(--text-main);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px -5px var(--primary-glow);
}

.contact-btn:hover {
  background: var(--primary);
  color: #070a13;
  box-shadow: 0 4px 25px var(--primary-glow);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition-fast);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-content h1 span {
  display: block;
  font-size: 1.2rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #070a13;
  box-shadow: 0 4px 30px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 35px var(--primary-glow);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-muted);
  font-size: 1.2rem;
}

.social-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(16, 185, 129, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--primary-glow);
}

/* --- Terminal / Visitor Info Widget --- */
.terminal-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(0,0,0,0.6);
  backdrop-filter: blur(12px);
  position: relative;
  transition: var(--transition-normal);
}

.terminal-widget:hover {
  border-color: var(--border-hover);
  box-shadow: 0 25px 45px -10px rgba(16, 185, 129, 0.15);
}

.terminal-header {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-main);
  min-height: 250px;
  position: relative;
}

.terminal-row {
  margin-bottom: 0.8rem;
  display: flex;
  flex-wrap: wrap;
}

.terminal-row:last-child {
  margin-bottom: 0;
}

.terminal-prompt {
  color: var(--primary);
  margin-right: 0.8rem;
  user-select: none;
}

.terminal-cmd {
  color: #fff;
  font-weight: 500;
}

.terminal-res {
  color: var(--text-muted);
  width: 100%;
  padding-left: 1.2rem;
  margin-top: 0.2rem;
}

.res-highlight {
  color: var(--secondary);
}

.res-success {
  color: #34d399;
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--primary);
  animation: blink 1s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}

/* Scanlines overlay for cool cyber effect */
.terminal-widget::after {
  content: " ";
  display: block;
  position: absolute;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  z-index: 2;
  background-size: 100% 2px, 3px 100%;
  pointer-events: none;
}

/* --- Services / Skills Grid --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 15px 30px -10px rgba(16, 185, 129, 0.1);
}

.skill-card:hover::before {
  transform: scaleX(1);
}

.skill-icon {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.skill-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.2rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

.skill-card:hover .tech-tag {
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--text-main);
}

/* --- Projects Section --- */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
  background: var(--primary);
  color: #070a13;
  border-color: var(--primary);
  font-weight: 600;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 40px -15px rgba(16, 185, 129, 0.15);
}

.project-img-wrapper {
  position: relative;
  height: 220px;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Procedural Premium Graphic for Project Cards (instead of empty placeholders) */
.project-graphic {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.project-graphic::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  z-index: 1;
}

.project-graphic svg {
  width: 64px;
  height: 64px;
  color: var(--primary);
  z-index: 2;
  filter: drop-shadow(0 0 10px var(--primary-glow));
  transition: var(--transition-normal);
}

.project-card:hover .project-graphic svg {
  transform: scale(1.1) rotate(5deg);
  color: var(--secondary);
  filter: drop-shadow(0 0 15px var(--secondary-glow));
}

.project-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(7, 10, 19, 0.8);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  z-index: 3;
}

.project-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-content h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-metrics {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--secondary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.project-link-more {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

.project-link-more:hover {
  color: var(--text-main);
}

.project-git-link {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.project-git-link:hover {
  color: var(--text-main);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.avatar-wrapper {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 40px -15px rgba(0,0,0,0.6);
}

.avatar-wrapper::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--primary);
  border-radius: var(--radius-lg);
  opacity: 0.3;
  margin: 10px;
  pointer-events: none;
}

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

.avatar-icon {
  font-size: 5rem;
  color: var(--primary);
  filter: drop-shadow(0 0 15px var(--primary-glow));
}

.avatar-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  margin-top: 1rem;
  letter-spacing: -0.02em;
}

.avatar-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.about-decor-circle {
  position: absolute;
  border: 1px dashed rgba(16, 185, 129, 0.2);
  width: 360px;
  height: 360px;
  border-radius: 50%;
  top: -30px;
  z-index: -1;
  animation: spin 60s linear infinite;
}

/* --- Live Architecture Animations --- */
.arch-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--primary);
  position: relative;
  z-index: 2;
}

.node-icon {
  width: 32px;
  height: 32px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--primary);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.9rem;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
  animation: pulse-node 2s infinite alternate;
}

@keyframes pulse-node {
  0% { box-shadow: 0 0 5px rgba(16, 185, 129, 0.1); }
  100% { box-shadow: 0 0 15px rgba(16, 185, 129, 0.5); }
}

.arch-line {
  flex-grow: 1;
  height: 1px;
  background: rgba(16, 185, 129, 0.2);
  margin: 0 10px;
  position: relative;
  top: -8px;
  z-index: 1;
}

.arch-pulse {
  position: absolute;
  top: -1px;
  left: 0;
  width: 15px;
  height: 3px;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: stream-data 2s linear infinite;
}

@keyframes stream-data {
  0% { left: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

.about-text h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.stat-item h4 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  margin-bottom: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.8rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  backdrop-filter: blur(10px);
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.info-content h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.info-content p, .info-content a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.info-content a:hover {
  color: var(--primary);
}

.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-control {
  width: 100%;
  background: rgba(7, 10, 19, 0.6);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

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

.submit-btn {
  width: 100%;
  background: var(--primary);
  color: #070a13;
  border: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 4px 20px var(--primary-glow);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--primary-glow);
}

.form-status {
  margin-top: 1rem;
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: center;
  display: none;
}

.status-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
  display: block;
}

.status-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  display: block;
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  background: #04060c;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Case Study Modal Overlay --- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(7, 10, 19, 0.85);
  backdrop-filter: blur(16px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 2rem;
}

.modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.modal-hero {
  padding: 3.5rem 3rem 2rem 3rem;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.05) 0%, transparent 100%);
  position: relative;
}

.modal-hero h3 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.modal-hero .modal-category {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.modal-body {
  padding: 3rem;
}

.modal-section {
  margin-bottom: 2.5rem;
}

.modal-section:last-child {
  margin-bottom: 0;
}

.modal-section h4 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1rem;
  border-left: 3px solid var(--primary);
  padding-left: 0.8rem;
}

.modal-section p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.modal-section p:last-child {
  margin-bottom: 0;
}

.modal-section ul {
  list-style: none;
}

.modal-section li {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.modal-section li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.modal-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* --- Scroll Animation Classes --- */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow) ease-out, transform var(--transition-slow) ease-out;
  visibility: hidden;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

/* --- Keyframe Animations --- */
@keyframes blink {
  from, to { background-color: transparent }
  50% { background-color: var(--primary) }
}

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

/* --- Mobile Responsiveness --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero {
    min-height: auto;
    padding-bottom: 4rem;
  }
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about-visual {
    order: -1;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .section-padding {
    padding: 6rem 0 3rem 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg-primary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    transition: var(--transition-normal);
    z-index: 99;
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .hero-content h1 {
    font-size: 2.8rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .modal {
    padding: 1rem;
  }
  
  .modal-hero {
    padding: 2.5rem 1.5rem 1.5rem 1.5rem;
  }
  
  .modal-body {
    padding: 1.5rem;
  }
}