/* =====================================================
   PORTFOLIO STYLES - Obsidian Dark Theme
   ===================================================== */

/* =====================================================
   DESIGN SYSTEM VARIABLES
   ===================================================== */
:root {
  /* Backgrounds */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;

  /* Text */
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a5;
  --text-muted: #707075;

  /* Accents */
  --accent-primary: #64748b;
  --accent-hover: #94a3b8;
  --accent-subtle: #475569;
  
  /* Neon Red Accent */
  --neon-red: #ff2d55;
  --neon-red-glow: rgba(255, 45, 85, 0.5);
  --neon-red-subtle: rgba(255, 45, 85, 0.15);

  /* Borders */
  --border-subtle: #2a2a2a;
  --border-default: #333333;
  --border-hover: #64748b;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-accent: 0 4px 12px rgba(100, 116, 139, 0.25);

  /* Font Families */
  --font-primary:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Easing Curves */
  --ease-entrance: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-interactive: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-exit: cubic-bezier(0.4, 0, 1, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Durations */
  --duration-fast: 200ms;
  --duration-normal: 300ms;
  --duration-smooth: 400ms;
  --duration-slow: 500ms;
  --duration-entrance: 600ms;
  --duration-leisurely: 800ms;
  --duration-scroll: 1000ms;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 30px;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: var(--leading-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* Cyberpunk Grid Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    /* Vertical lines */
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 120px,
      rgba(255, 45, 85, 0.08) 120px,
      rgba(255, 45, 85, 0.08) 121px
    ),
    /* Horizontal lines */
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 120px,
      rgba(255, 45, 85, 0.08) 120px,
      rgba(255, 45, 85, 0.08) 121px
    );
  pointer-events: none;
  z-index: 0;
  animation: gridPulse 4s ease-in-out infinite;
}

/* Glowing edge accents */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    /* Left edge glow */
    linear-gradient(90deg, rgba(255, 45, 85, 0.04) 0%, transparent 12%),
    /* Right edge glow */
    linear-gradient(270deg, rgba(255, 45, 85, 0.04) 0%, transparent 12%),
    /* Top edge glow */
    linear-gradient(180deg, rgba(255, 45, 85, 0.03) 0%, transparent 8%);
  pointer-events: none;
  z-index: 0;
  animation: edgePulse 3s ease-in-out infinite alternate;
}

@keyframes gridPulse {
  0%, 100% {
    opacity: 0.3;
    filter: drop-shadow(0 0 2px rgba(255, 45, 85, 0.3));
  }
  50% {
    opacity: 1;
    filter: drop-shadow(0 0 8px rgba(255, 45, 85, 0.6));
  }
}

@keyframes edgePulse {
  0% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

/* =====================================================
   HEARTBEAT PULSE EFFECT
   ===================================================== */
.heartbeat-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

/* Horizontal neon lines */
.heartbeat-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--neon-red) 20%, 
    var(--neon-red) 80%, 
    transparent 100%
  );
  opacity: 0;
  box-shadow: 
    0 0 15px var(--neon-red),
    0 0 30px var(--neon-red),
    0 0 60px var(--neon-red-glow);
  animation: heartbeatLine 2s ease-in-out infinite;
}

.heartbeat-line-1 { top: 15%; animation-delay: 0s; }
.heartbeat-line-2 { top: 40%; animation-delay: 0.5s; }
.heartbeat-line-3 { top: 65%; animation-delay: 1s; }
.heartbeat-line-4 { top: 90%; animation-delay: 1.5s; }

/* Vertical neon lines */
.heartbeat-vline {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, 
    transparent 0%, 
    var(--neon-red) 30%, 
    var(--neon-red) 70%, 
    transparent 100%
  );
  opacity: 0;
  box-shadow: 
    0 0 15px var(--neon-red),
    0 0 30px var(--neon-red),
    0 0 60px var(--neon-red-glow);
  animation: heartbeatVLine 2s ease-in-out infinite;
}

.heartbeat-vline-1 { left: 10%; animation-delay: 0.3s; }
.heartbeat-vline-2 { left: 50%; animation-delay: 0.8s; }
.heartbeat-vline-3 { right: 10%; left: auto; animation-delay: 1.3s; }

/* Central pulse glow */
.heartbeat-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, 
    rgba(255, 45, 85, 0.15) 0%, 
    transparent 70%
  );
  border-radius: 50%;
  animation: heartbeatPulse 2s ease-in-out infinite;
}

@keyframes heartbeatLine {
  0%, 100% {
    opacity: 0;
    transform: scaleX(0.3);
  }
  15%, 30% {
    opacity: 0.25;
    transform: scaleX(1);
  }
  45% {
    opacity: 0;
    transform: scaleX(0.5);
  }
}

@keyframes heartbeatVLine {
  0%, 100% {
    opacity: 0;
    transform: scaleY(0.3);
  }
  15%, 30% {
    opacity: 0.15;
    transform: scaleY(1);
  }
  45% {
    opacity: 0;
    transform: scaleY(0.5);
  }
}

@keyframes heartbeatPulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.08;
  }
  15%, 30% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0.2;
  }
  50% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.1;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .heartbeat-line,
  .heartbeat-vline,
  .heartbeat-pulse {
    animation: none;
    opacity: 0;
  }
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* =====================================================
   CURSOR GLOW EFFECT
   ===================================================== */
.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(255, 45, 85, 0.04) 0%,
    rgba(100, 116, 139, 0.02) 40%,
    transparent 70%
  );
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition:
    left 200ms var(--ease-entrance),
    top 200ms var(--ease-entrance);
  z-index: -1;
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  transition:
    transform var(--duration-normal) var(--ease-interactive),
    background-color var(--duration-smooth) var(--ease-entrance),
    box-shadow var(--duration-smooth) var(--ease-entrance);
}

.nav.scrolled {
  background-color: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.nav.hidden {
  transform: translateY(-100%);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: color var(--duration-normal) var(--ease-interactive);
}

.nav-logo:hover {
  color: var(--accent-hover);
}

.nav-links {
  display: none;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  position: relative;
  transition: color var(--duration-normal) var(--ease-interactive);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width var(--duration-smooth) var(--ease-bounce);
}

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

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

/* Mobile Navigation Toggle */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
}

.hamburger {
  position: relative;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: background-color var(--duration-fast) var(--ease-interactive);
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--duration-normal) var(--ease-interactive);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.nav-toggle.active .hamburger {
  background-color: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active .hamburger::after {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-entrance),
    visibility var(--duration-normal) var(--ease-entrance);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-links {
  text-align: center;
}

.mobile-menu-link {
  display: block;
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  padding: var(--space-4) var(--space-8);
  opacity: 0;
  transform: translateY(20px);
  transition:
    color var(--duration-normal) var(--ease-interactive),
    opacity var(--duration-smooth) var(--ease-entrance),
    transform var(--duration-smooth) var(--ease-entrance);
}

.mobile-menu.active .mobile-menu-link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-menu-link:nth-child(1) {
  transition-delay: 100ms;
}
.mobile-menu.active .mobile-menu-link:nth-child(2) {
  transition-delay: 150ms;
}
.mobile-menu.active .mobile-menu-link:nth-child(3) {
  transition-delay: 200ms;
}
.mobile-menu.active .mobile-menu-link:nth-child(4) {
  transition-delay: 250ms;
}
.mobile-menu.active .mobile-menu-link:nth-child(5) {
  transition-delay: 300ms;
}

.mobile-menu-link:hover {
  color: var(--accent-hover);
}

/* =====================================================
   SECTION BASE STYLES
   ===================================================== */
.section {
  padding: var(--space-16) var(--space-6);
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-narrow {
  max-width: 800px;
}

.section-medium {
  max-width: 1000px;
}

.section-label {
  display: block;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-red);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
  text-shadow: 0 0 20px var(--neon-red-glow);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-12);
  letter-spacing: -0.02em;
}

/* Section Dividers */
.section-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-primary),
    transparent
  );
  margin: var(--space-24) auto;
  max-width: 600px;
  width: 0;
  transition: width 1200ms var(--ease-entrance);
}

.section-divider.reveal-active {
  width: 100%;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  position: relative;
}

.hero-content {
  text-align: center;
  max-width: 800px;
}

.hero-name {
  font-size: clamp(var(--text-5xl), 10vw, 4.5rem);
  font-weight: var(--weight-bold);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: var(--leading-tight);
  text-shadow: 0 0 40px var(--neon-red-subtle);
}

.hero-tagline {
  font-size: clamp(var(--text-xl), 4vw, var(--text-3xl));
  font-weight: var(--weight-normal);
  color: var(--text-secondary);
  margin-top: var(--space-4);
}

.hero-description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  max-width: 600px;
  margin: var(--space-6) auto 0;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--space-12);
  flex-wrap: wrap;
}

/* Hero Entrance Animations */
.hero-animate {
  opacity: 0;
  transform: translateY(40px);
}

.hero-animate.animate-in {
  animation: heroFadeIn var(--duration-leisurely) var(--ease-entrance) forwards;
}

.hero-name.animate-in {
  animation-delay: 0ms;
}

.hero-tagline.animate-in {
  animation-delay: 300ms;
}

.hero-description.animate-in {
  animation-delay: 500ms;
}

.hero-cta.animate-in {
  animation-delay: 700ms;
  animation-timing-function: var(--ease-bounce);
  animation-duration: var(--duration-slow);
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 32px;
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  transition:
    transform var(--duration-normal) var(--ease-interactive),
    background-color var(--duration-normal) var(--ease-interactive),
    border-color var(--duration-normal) var(--ease-interactive),
    color var(--duration-normal) var(--ease-interactive),
    box-shadow var(--duration-normal) var(--ease-interactive);
}

.btn-primary {
  background-color: var(--accent-primary);
  color: white;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left var(--duration-slow) var(--ease-interactive);
}

.btn-primary:hover {
  background-color: var(--neon-red);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--neon-red-glow);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:active {
  transform: translateY(0);
  transition-duration: 100ms;
}

.btn-arrow {
  transition: transform var(--duration-normal) var(--ease-interactive);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

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

.btn-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

/* Card Buttons */
.btn-card {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 16px;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-interactive);
}

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

.btn-github:hover {
  border-color: var(--accent-primary);
  background-color: rgba(100, 116, 139, 0.1);
}

.btn-demo {
  background-color: var(--accent-primary);
  color: white;
}

.btn-demo:hover {
  background-color: var(--accent-hover);
  box-shadow: var(--shadow-accent);
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about-content p {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.project-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  cursor: pointer;
  transition:
    transform var(--duration-smooth) var(--ease-bounce),
    box-shadow var(--duration-smooth) var(--ease-entrance),
    border-color var(--duration-normal) var(--ease-interactive);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 12px 32px rgba(0, 0, 0, 0.5),
    0 0 20px var(--neon-red-subtle);
  border-color: var(--neon-red);
}

.project-name {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

.project-problem {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--accent-primary);
}

.project-description {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-secondary);
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.tech-badge {
  display: inline-flex;
  padding: 6px 12px;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
  transition:
    transform var(--duration-normal) var(--ease-bounce),
    background-color var(--duration-normal) var(--ease-interactive),
    box-shadow var(--duration-normal) var(--ease-interactive);
}

.tech-badge:hover {
  transform: translateY(-3px) scale(1.05);
  background-color: var(--neon-red-subtle);
  box-shadow: 0 2px 12px var(--neon-red-glow);
  color: var(--text-primary);
}

.project-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* =====================================================
   PROJECT MODAL
   ===================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-entrance),
    visibility var(--duration-normal) var(--ease-entrance);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-12);
  position: relative;
  opacity: 0;
  transform: translateY(60px) scale(0.95);
  transition:
    opacity var(--duration-slow) var(--ease-bounce),
    transform var(--duration-slow) var(--ease-bounce);
}

.modal-overlay.active .modal-content {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  font-size: var(--text-2xl);
  color: var(--text-secondary);
  transition:
    border-color var(--duration-normal) var(--ease-interactive),
    transform var(--duration-normal) var(--ease-interactive),
    color var(--duration-normal) var(--ease-interactive);
}

.modal-close:hover {
  border-color: var(--accent-primary);
  transform: rotate(90deg);
  color: var(--text-primary);
}

.modal-title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-8);
  padding-right: var(--space-12);
}

.modal-section {
  margin-bottom: var(--space-8);
}

.modal-section:last-of-type {
  margin-bottom: var(--space-6);
}

.modal-section-title {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
}

.modal-text {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
}

.modal-list {
  padding-left: var(--space-4);
}

.modal-list li {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  position: relative;
  padding-left: var(--space-4);
}

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

.modal-actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */
.skills-grid {
  display: grid;
  gap: var(--space-8);
}

.skill-category {
  margin-bottom: var(--space-4);
}

.skill-category-title {
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-pill {
  display: inline-flex;
  padding: 8px 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  transition:
    transform var(--duration-normal) var(--ease-bounce),
    background-color var(--duration-normal) var(--ease-interactive),
    border-color var(--duration-normal) var(--ease-interactive),
    box-shadow var(--duration-normal) var(--ease-interactive);
}

.skill-pill:hover {
  transform: translateY(-3px) scale(1.05);
  background-color: var(--accent-subtle);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-accent);
}

/* =====================================================
   EXPERIENCE SECTION
   ===================================================== */
.achievements {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.achievement-card {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-6) var(--space-6) var(--space-8);
  transition: all var(--duration-normal) var(--ease-interactive);
}

.achievement-card:hover {
  border-left-width: 6px;
  border-left-color: var(--accent-hover);
  background-color: rgba(100, 116, 139, 0.05);
  transform: translateX(4px);
}

.achievement-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.achievement-date {
  display: block;
  font-size: var(--text-sm);
  color: var(--accent-primary);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-3);
}

.achievement-description {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-secondary);
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
  padding-bottom: var(--space-32);
}

.contact-intro {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition:
    border-color var(--duration-normal) var(--ease-interactive),
    background-color var(--duration-normal) var(--ease-interactive),
    transform var(--duration-normal) var(--ease-interactive);
}

.contact-link:hover {
  border-color: var(--accent-primary);
  background-color: rgba(100, 116, 139, 0.1);
  transform: translateX(4px);
}

.contact-icon {
  font-size: var(--text-2xl);
  color: var(--accent-primary);
  font-weight: var(--weight-bold);
  min-width: 32px;
  text-align: center;
}

/* Contact Form */
.contact-form {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  font-family: var(--font-primary);
  transition:
    border-color var(--duration-fast) var(--ease-interactive),
    box-shadow var(--duration-fast) var(--ease-interactive);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

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

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-content p {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* =====================================================
   SCROLL-TRIGGERED ANIMATIONS
   ===================================================== */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition:
    opacity var(--duration-entrance) var(--ease-entrance),
    transform var(--duration-entrance) var(--ease-entrance);
}

.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

.stagger-item {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity var(--duration-smooth) var(--ease-entrance),
    transform var(--duration-smooth) var(--ease-entrance);
}

.stagger-item.reveal-active {
  opacity: 1;
  transform: translateY(0);
}

/* Slide from left for achievement cards */
.achievement-card.stagger-item {
  transform: translateX(-40px);
}

.achievement-card.stagger-item.reveal-active {
  transform: translateX(0);
}

/* =====================================================
   FOCUS STATES (ACCESSIBILITY)
   ===================================================== */
*:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 4px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* =====================================================
   REDUCED MOTION
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-animate {
    opacity: 1;
    transform: none;
  }

  .reveal,
  .stagger-item {
    opacity: 1;
    transform: none;
  }
}

/* =====================================================
   RESPONSIVE STYLES
   ===================================================== */

/* Tablet (768px+) */
@media (min-width: 768px) {
  .section {
    padding: var(--space-24) var(--space-8);
  }

  .section-title {
    font-size: var(--text-5xl);
  }

  .nav-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

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

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

  .hero-description {
    font-size: var(--text-lg);
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .section-container {
    padding: 0 var(--space-8);
  }

  .hero-name {
    font-size: 4.5rem;
  }

  .hero-tagline {
    font-size: var(--text-3xl);
  }

  .modal-content {
    padding: var(--space-12);
  }

  .cursor-glow {
    display: block;
  }
}

/* Mobile optimizations */
@media (max-width: 767px) {
  .hero {
    min-height: 85vh;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }

  .modal-content {
    padding: var(--space-6);
    margin: var(--space-4);
  }

  .modal-title {
    font-size: var(--text-2xl);
  }

  .cursor-glow {
    display: none;
  }

  .contact-form {
    margin-top: var(--space-8);
  }
}

/* Hide cursor glow on touch devices */
@media (hover: none) and (pointer: coarse) {
  .cursor-glow {
    display: none;
  }
}