/* Variables */
:root {
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-monospace: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;

  /* Typographic Scale (Adaptable Typography) */
  --text-base-size: 1rem; /* Approx 16px */
  --text-scale-ratio: 1.25; 
  --text-xs: calc(var(--text-base-size) / (var(--text-scale-ratio) * var(--text-scale-ratio))); 
  --text-sm: calc(var(--text-base-size) / var(--text-scale-ratio)); 
  --text-md: var(--text-base-size); 
  --text-lg: calc(var(--text-base-size) * var(--text-scale-ratio)); 
  --text-xl: calc(var(--text-base-size) * var(--text-scale-ratio) * var(--text-scale-ratio)); 
  --text-2xl: calc(var(--text-base-size) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio)); 
  --text-3xl: calc(var(--text-base-size) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio)); 
  --text-4xl: calc(var(--text-base-size) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio) * var(--text-scale-ratio)); 

  /* Colors - Light Mode (Accessible Color Theory & Minimalism) */
  --background-color-light: #FFFFFF;
  --text-color-light: #1A202C; /* Dark Gray - WCAG AA on white (7.88:1) */
  --text-muted-light: #4A5568; /* Medium Gray - WCAG AA on white (4.54:1 for normal text) */
  
  --primary-color-light: #2B6CB0; /* Accessible Blue - WCAG AA on white (4.67:1) */
  --accent-color-light: #C05621;  /* Darker Orange - WCAG AA on white (4.53:1) */

  --header-bg-light: rgba(255, 255, 255, 0.8); 
  --header-text-light: var(--text-color-light);
  --footer-bg-light: #F7FAFC; 
  --footer-text-light: var(--text-muted-light);
  --mobile-nav-bg-light: rgba(255, 255, 255, 0.95);
  --mobile-nav-text-light: var(--text-color-light);

  /* RGB components for RGBA usage */
  --text-light-r: 26; --text-light-g: 32; --text-light-b: 44;
  --primary-light-r: 43; --primary-light-g: 108; --primary-light-b: 176;


  --transition: all 0.25s ease-in-out; 
  --box-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.07), 0 1px 2px 0 rgba(0, 0, 0, 0.04); 
  --box-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.05); 
  --border-radius: 6px; 
  --chatbot-border-radius: 12px;
}

/* Dark mode variables */
body.dark-mode {
  --background-color-dark: #121212; 
  --text-color-dark: #E2E8F0;   
  --text-muted-dark: #A0AEC0; 

  --primary-color-dark: #63B3ED; 
  --accent-color-dark: #F56565;   
  
  --header-bg-dark: rgba(26, 32, 44, 0.85); 
  --header-text-dark: var(--text-color-dark);
  --footer-bg-dark: #1A202C; 
  --footer-text-dark: var(--text-muted-dark);
  --mobile-nav-bg-dark: rgba(26, 32, 44, 0.95);
  --mobile-nav-text-dark: var(--text-color-dark);
  
  /* RGB components for RGBA usage */
  --text-dark-r: 226; --text-dark-g: 232; --text-dark-b: 240;
  --primary-dark-r: 99; --primary-dark-g: 179; --primary-dark-b: 237;
  line-height: 1.7; 
}

/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%; 
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-md); 
  line-height: 1.7; 
  color: var(--text-color-light); 
  background-color: var(--background-color-light); 
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body.dark-mode {
  color: var(--text-color-dark);
  background-color: var(--background-color-dark);
}

a {
  color: var(--primary-color-light);
  text-decoration: none;
  transition: color var(--transition);
}
body.dark-mode a {
  color: var(--primary-color-dark);
}
a:hover, a:focus {
  color: var(--accent-color-light);
  outline: 2px solid transparent; 
  outline-offset: 2px;
}
body.dark-mode a:hover,
body.dark-mode a:focus {
  color: var(--accent-color-dark);
}

/* Typography (Bold & Adaptable) */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1.25rem;
  line-height: 1.3;
  font-weight: 700; 
  letter-spacing: -0.01em; 
}
h1 { font-size: var(--text-3xl); letter-spacing: -0.025em; }
h2 { font-size: var(--text-2xl); letter-spacing: -0.02em; }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
p { margin-bottom: 1.25rem; max-width: 65ch; }


/* Layout (Minimalism - more whitespace) */
.container {
  max-width: 1100px; 
  margin-left: auto; 
  margin-right: auto; 
  padding: 0 1.5rem; 
}

/* Header (Minimalism & Refined Interactivity) */
header {
  background-color: var(--header-bg-light); 
  color: var(--header-text-light); 
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: none; 
}
header.scrolled { 
    box-shadow: var(--box-shadow-md);
    background-color: rgba(255,255,255,0.95); 
}
body.dark-mode header { 
  background-color: var(--header-bg-dark); 
  color: var(--header-text-dark); 
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
body.dark-mode header.scrolled {
    background-color: rgba(26, 32, 44, 0.95); 
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  width: 100%; 
  position: relative; 
}

.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.logo a {
  display: inline-block;
  transition: opacity 0.3s ease;
  color: inherit; 
}

.logo-image { 
  height: 40px;
  width: 40px;
  transition: color 0.3s ease;
  color: inherit; 
}

.logo a:hover .logo-image,
.logo a:focus .logo-image {
  color: var(--accent-color-light); 
}
body.dark-mode .logo a:hover .logo-image,
body.dark-mode .logo a:focus .logo-image {
  color: var(--accent-color-dark);
}


/* Desktop Nav Menu */
.nav-menu {
  display: flex;
  justify-content: center;
  flex-grow: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu li:not(:last-child) {
  margin-right: 1.75rem; 
}

.nav-menu a {
  color: inherit; 
  font-weight: 500;
  padding: 0.5rem 0.25rem; 
  position: relative;
  transition: color 0.3s ease, background-color 0.3s ease;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -2px; 
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color-light); 
  transition: width 0.3s ease;
}
body.dark-mode .nav-menu a::after {
  background-color: var(--primary-color-dark);
}


.nav-menu a:hover::after,
.nav-menu a:focus::after {
  width: 100%;
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--primary-color-light); 
  background-color: transparent; 
}

body.dark-mode .nav-menu a:hover,
body.dark-mode .nav-menu a:focus {
  color: var(--primary-color-dark);
  background-color: transparent;
  text-shadow: none; 
}


.header-controls {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: 10px;
  z-index: 1001; 
  color: inherit; 
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px; 
  background-color: currentColor; 
  margin: 5px 0;
  transition: all 0.3s ease-in-out;
}

/* Responsive Header (Mobile Menu) */
@media (max-width: 768px) {
  ul.nav-menu { 
    display: none; 
    flex-direction: column;
    position: absolute;
    top: 100%; 
    left: 0;
    width: 100%;
    background-color: var(--mobile-nav-bg-light); 
    backdrop-filter: blur(8px); 
    -webkit-backdrop-filter: blur(8px);
    padding: 1rem 0;
    box-shadow: var(--box-shadow-md);
    z-index: 1000;
    transition: background-color 0.3s ease; 
  }

  body.dark-mode ul.nav-menu { 
    background-color: var(--mobile-nav-bg-dark); 
  }

  ul.nav-menu.active { 
    display: flex;
  }

  ul.nav-menu li { 
    margin: 0; 
    width: 100%; 
  }
  ul.nav-menu li a { 
    display: block; 
    padding: 0.9rem 1.5rem; 
    color: var(--mobile-nav-text-light); 
    font-weight: 500; 
    text-align: left;
    border-bottom: 1px solid rgba(var(--text-light-r), var(--text-light-g), var(--text-light-b), 0.1);
  }
  ul.nav-menu li:last-child a {
    border-bottom: none;
  }

  body.dark-mode ul.nav-menu a { 
     color: var(--mobile-nav-text-dark); 
     border-bottom-color: rgba(var(--text-dark-r), var(--text-dark-g), var(--text-dark-b), 0.1);
  }

  ul.nav-menu a::after { 
    display: none;
  }
  ul.nav-menu a:hover, ul.nav-menu a:focus {
    background-color: rgba(var(--primary-light-r), var(--primary-light-g), var(--primary-light-b), 0.1);
    color: var(--primary-color-light);
  }
  body.dark-mode ul.nav-menu a:hover, body.dark-mode ul.nav-menu a:focus {
    background-color: rgba(var(--primary-dark-r), var(--primary-dark-g), var(--primary-dark-b), 0.2);
    color: var(--primary-color-dark);
  }


  .hamburger {
    display: block;
    position: absolute; 
    top: 50%;
    right: 1.5rem; 
    transform: translateY(-50%);
  }

  .header-controls { 
     margin-right: calc(1.5rem + 40px + 0.5rem); 
  }
  nav .logo { 
    padding-left: 1.5rem;
  }
  nav .nav-menu.active { 
    display: flex;
  }


  .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }
}


/* Theme Toggles (Refined Interactivity) */
#dark-mode-toggle,
#animation-toggle { 
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.25rem; 
  color: inherit; 
  transition: color var(--transition);
  padding: 0.6rem;   
  display: block; /* Ensures it's always block-level */
}
#dark-mode-toggle:hover, #dark-mode-toggle:focus,
#animation-toggle:hover, #animation-toggle:focus {
  color: var(--primary-color-light); 
}
body.dark-mode #dark-mode-toggle:hover, 
body.dark-mode #dark-mode-toggle:focus,
body.dark-mode #animation-toggle:hover, 
body.dark-mode #animation-toggle:focus {
  color: var(--primary-color-dark);
}

/* REMOVED: body.dark-mode #animation-toggle { display: none; } */
/* Animation toggle button is now always visible by default */

#dark-mode-toggle .fa-moon,
#dark-mode-toggle .fa-sun {
  transition: opacity 0.3s ease, display 0s 0.3s; 
}

#dark-mode-toggle .fa-moon { display: inline-block; }
#dark-mode-toggle .fa-sun { display: none; }

body.dark-mode #dark-mode-toggle .fa-moon { display: none; }
body.dark-mode #dark-mode-toggle .fa-sun { display: inline-block; }


/* Main content */
#main-content {
  position: relative;
  z-index: 1;  
  padding-top: 100px; 
}

.section {
  padding: 5rem 0; 
  position: relative; 
}

/* Hero section (Bold Typography & Minimalism) */
#hero {
  padding: 8rem 0 7rem; 
  min-height: 90vh; 
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  color: var(--text-color-light);
  background-color: transparent; 
}
body.dark-mode #hero { color: var(--text-color-dark); }

#hero h1 {
  font-size: var(--text-4xl); 
  font-weight: 900; 
  margin-bottom: 0.75rem;
  color: var(--text-color-light);
}
body.dark-mode #hero h1 { color: var(--text-color-dark); }

#hero h2 {
  font-size: var(--text-xl);
  color: var(--primary-color-light); 
  margin-bottom: 2rem;
  font-weight: 400; 
}
body.dark-mode #hero h2 { color: var(--primary-color-dark); }

#hero p {
  font-size: var(--text-lg);
  color: var(--text-muted-light);
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8; 
}
body.dark-mode #hero p { color: var(--text-muted-dark); }

/* CTA Buttons (Refined Interactivity & Accessible Colors) */
.cta-buttons {
  margin-top: 2.5rem; 
}

.cta-button {
  display: inline-block;
  padding: 0.9rem 2rem; 
  margin: 0.75rem; 
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: transform 0.2s ease-out, background-color 0.2s ease-out, color 0.2s ease-out, border-color 0.2s ease-out, box-shadow 0.2s ease-out;
  font-weight: 500; 
  font-size: var(--text-md); 
  letter-spacing: 0.025em;
}
.cta-button:hover, .cta-button:focus {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-md);
  outline: 2px solid transparent;
  outline-offset: 3px;
}

.cta-button.primary {
  background-color: var(--accent-color-light);
  color: #ffffff;
  box-shadow: var(--box-shadow-sm);
}
body.dark-mode .cta-button.primary {
  background-color: var(--accent-color-dark);
  color: #1A202C; 
}
.cta-button.primary:hover, .cta-button.primary:focus {
   background-color: #c5301b; 
}
body.dark-mode .cta-button.primary:hover, 
body.dark-mode .cta-button.primary:focus {
   background-color: #E53E3E; 
}


.cta-button.secondary {
  border: 2px solid var(--primary-color-light);
  color: var(--primary-color-light);
  background-color: transparent;
}
.cta-button.secondary:hover, 
.cta-button.secondary:focus {
  background-color: var(--primary-color-light);
  color: #ffffff; 
}
body.dark-mode .cta-button.secondary {
  border-color: var(--primary-color-dark); 
  color: var(--primary-color-dark);
}
body.dark-mode .cta-button.secondary:hover,
body.dark-mode .cta-button.secondary:focus {
  background-color: var(--primary-color-dark);
  color: var(--background-color-dark); 
}

.cta-button.secondary[download]::before {
  content: "\f019"; 
  font-family: "Font Awesome 6 Free", "FontAwesome"; 
  font-weight: 900; 
  margin-right: 0.5em; 
}


/* Footer (Minimalism) */
footer {
  background-color: var(--footer-bg-light); 
  color: var(--footer-text-light); 
  text-align: center; 
  padding: 2.5rem 0; 
  margin-top: 5rem; 
  border-top: 1px solid #E2E8F0; 
}
body.dark-mode footer {
  background-color: var(--footer-bg-dark); 
  color: var(--footer-text-dark); 
  border-top: 1px solid #2D3748; 
}
footer .container {
    text-align: center; 
}
footer .container p {
    display: inline-block; 
    text-align: center; 
    margin-left: auto; 
    margin-right: auto; 
}


/* Background Canvas Styling */
#light-background, #dark-background {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: -10; overflow: hidden; pointer-events: none; 
  opacity: 0; visibility: hidden;
  transition: opacity 0.7s ease-in-out; 
}
#light-background.container-visible,
#dark-background.container-visible {
  opacity: 1; 
  visibility: visible;
}
#light-background.container-hidden,
#dark-background.container-hidden {
    opacity: 0;
    visibility: hidden;
}

#light-background canvas,
#dark-background canvas {
  position: absolute; top: 0; left: 0; width: 100% !important; height: 100% !important; 
}


/* Scrollbar */
::-webkit-scrollbar {
  width: 8px; 
}
::-webkit-scrollbar-track {
  background: var(--background-color-light); 
}
body.dark-mode ::-webkit-scrollbar-track {
  background: var(--background-color-dark);
}
::-webkit-scrollbar-thumb {
  background: #A0AEC0; 
  border-radius: 4px;
}
body.dark-mode ::-webkit-scrollbar-thumb {
  background: #4A5568; 
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color-light); 
}
body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color-dark);
}

/* Skills and Contact sections */
.skills-container,
.contact-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem; 
  margin-top: 2rem;
}
.skill-icon,
.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--background-color-light); 
  color: var(--text-color-light);
  padding: 1.5rem;
  border-radius: var(--border-radius);
  transition: transform 0.2s ease-out, background-color 0.2s ease-out, color 0.2s ease-out, border-color 0.2s ease-out, box-shadow 0.2s ease-out;
  text-decoration: none;
  border: 1px solid #E2E8F0; 
  box-shadow: var(--box-shadow-sm);
  cursor: pointer;
}
body.dark-mode .skill-icon,
body.dark-mode .contact-item {
  background-color: #1A202C; 
  border-color: #2D3748;
  color: var(--text-color-dark);
}

.skill-icon:hover, .skill-icon:focus,
.contact-item:hover, .contact-item:focus {
  transform: translateY(-4px) scale(1.03);
  box-shadow: var(--box-shadow-md); 
  background-color: var(--primary-color-light);
  color: #ffffff; 
  border-color: var(--primary-color-light);
}
body.dark-mode .skill-icon:hover, 
body.dark-mode .skill-icon:focus,
body.dark-mode .contact-item:hover, 
body.dark-mode .contact-item:focus {
  background-color: var(--primary-color-dark); 
  color: #1A202C; 
  border-color: var(--primary-color-dark);
}
.skill-icon i,
.contact-item i {
  font-size: 2rem; 
  margin-bottom: 0.75rem;
  transition: color 0.2s ease, transform 0.2s ease-out; 
}
.skill-icon:hover i, .skill-icon:focus i,
.contact-item:hover i, .contact-item:focus i {
  color: #ffffff; 
  transform: scale(1.1); 
}
body.dark-mode .skill-icon:hover i, 
body.dark-mode .skill-icon:focus i,
body.dark-mode .contact-item:hover i, 
body.dark-mode .contact-item:focus i {
  color: #1A202C;
}
.skill-icon span,
.contact-item span {
  font-size: var(--text-sm); 
  font-weight: 500;
  text-align: center; 
}

/* Chatbot */
#chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px; 
  height: 60px; 
  background-color: var(--background-color-light);
  border: 1px solid #E2E8F0;
  border-radius: 50%; 
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  transition: width 0.3s ease, height 0.3s ease, border-radius 0.3s ease, background-color 0.3s ease;
  display: flex;
  flex-direction: column;
  z-index: 1000;
}
body.dark-mode #chatbot-container {
  background-color: #1A202C;
  border-color: #2D3748;
}
#chatbot-container:not(.chatbot-closed) { 
  width: 300px;
  height: 400px;
  border-radius: var(--chatbot-border-radius);
}
#chatbot-header {
  background-color: var(--primary-color-light);
  color: #ffffff; 
  padding: 10px 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0; 
}
body.dark-mode #chatbot-header {
  background-color: var(--primary-color-dark);
}
#chatbot-container.chatbot-closed #chatbot-header { 
  background-color: var(--primary-color-light);
  width: 100%; height: 100%; border-radius: 50%;
  display: flex; justify-content: center; align-items: center; padding: 0;
}
body.dark-mode #chatbot-container.chatbot-closed #chatbot-header {
  background-color: var(--primary-color-dark);
}
#chatbot-header h3 { margin: 0; font-size: var(--text-md); }
#chatbot-container.chatbot-closed #chatbot-header h3 { display: none; }
#chatbot-toggle { background: none; border: none; color: #ffffff; font-size: 1.25rem; cursor: pointer; padding: 0; line-height: 1; }
#chatbot-container.chatbot-closed #chatbot-toggle { font-size: 1.5rem; }
.open-icon, .close-icon { transition: opacity 0.3s ease, transform 0.3s ease; }
#chatbot-container.chatbot-closed .close-icon { display: none; }
#chatbot-container.chatbot-closed .open-icon { display: block; } 
#chatbot-container:not(.chatbot-closed) .open-icon { display: none; }
#chatbot-container:not(.chatbot-closed) .close-icon { display: block; } 
#chatbot-messages { flex-grow: 1; overflow-y: auto; padding: 15px; display: flex; flex-direction: column; }
#chatbot-container.chatbot-closed #chatbot-messages { display: none; }
#chatbot-form { display: flex; padding: 10px; border-top: 1px solid #E2E8F0; flex-shrink: 0; }
body.dark-mode #chatbot-form { border-top-color: #2D3748; }
#chatbot-container.chatbot-closed #chatbot-form { display: none; }
#chatbot-input {
  flex-grow: 1; border: 1px solid #CBD5E0; 
  padding: 0.6rem 0.8rem; border-radius: 20px; margin-right: 10px;
  background-color: #F7FAFC; color: var(--text-color-light); font-size: var(--text-sm);
}
body.dark-mode #chatbot-input {
  background-color: #2D3748; color: var(--text-color-dark); border-color: #4A5568;
}
#chatbot-input:focus { outline: none; border-color: var(--primary-color-light); box-shadow: 0 0 0 2px rgba(var(--primary-light-r),var(--primary-light-g),var(--primary-light-b),0.3); }
body.dark-mode #chatbot-input:focus { border-color: var(--primary-color-dark); box-shadow: 0 0 0 2px rgba(var(--primary-dark-r),var(--primary-dark-g),var(--primary-dark-b),0.3); }
#send-button {
  background-color: var(--primary-color-light); color: #ffffff; 
  border: none; border-radius: 50%; width: 38px; height: 38px;
  display: flex; justify-content: center; align-items: center; cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease; flex-shrink: 0;
}
body.dark-mode #send-button { background-color: var(--primary-color-dark); color: #1A202C; }
#send-button:hover, #send-button:focus { background-color: var(--accent-color-light); transform: scale(1.05); }
body.dark-mode #send-button:hover, body.dark-mode #send-button:focus { background-color: var(--accent-color-dark); }
#send-button i { font-size: 0.9rem; }
.chatbot-message {
  max-width: 85%; padding: 0.6rem 0.9rem; margin-bottom: 0.75rem;
  border-radius: 16px; line-height: 1.5; font-size: var(--text-sm);
  opacity: 0; transform: translateY(10px); animation: fadeInMessage 0.4s 0.1s forwards; 
}
@keyframes fadeInMessage {
    to { opacity: 1; transform: translateY(0); }
}
.chatbot-message.user { align-self: flex-end; background-color: var(--primary-color-light); color: #ffffff; }
body.dark-mode .chatbot-message.user { background-color: var(--primary-color-dark); color: #1A202C; }
.chatbot-message.bot { align-self: flex-start; background-color: #E2E8F0; color: var(--text-color-light); }
body.dark-mode .chatbot-message.bot { background-color: #2D3748; color: var(--text-color-dark); }

/* Projects styles */
#projects { padding: 5rem 0; }
.project-item {
  background-color: var(--background-color-light); 
  border-radius: var(--border-radius);
  padding: 2rem; margin-bottom: 2.5rem;
  transition: var(--transition);
  border: 1px solid #E2E8F0;
  box-shadow: var(--box-shadow-sm);
  position: relative;
}
body.dark-mode .project-item { background-color: #1A202C; border-color: #2D3748; color: var(--text-color-dark); }
.project-item:hover, .project-item:focus-within { transform: translateY(-5px); box-shadow: var(--box-shadow-md); }
.featured-project { border: 2px solid var(--primary-color-light); overflow: hidden; }
body.dark-mode .featured-project { border-color: var(--primary-color-dark); }
.featured-project::after {
  content: 'Featured'; position: absolute; top: 15px; right: -55px; 
  background: var(--accent-color-light); color: #ffffff; padding: 5px 50px;
  transform: rotate(45deg); font-size: var(--text-xs); font-weight: bold;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2); z-index: 1; text-align: center; width: 180px; 
}
body.dark-mode .featured-project::after { background: var(--accent-color-dark); }
.project-item h3 { 
  margin-top: 0; color: var(--primary-color-light); font-size: var(--text-xl);
  border-bottom: 2px solid var(--accent-color-light); padding-bottom: 0.5rem; margin-bottom: 1rem;
}
body.dark-mode .project-item h3 { color: var(--primary-color-dark); border-bottom-color: var(--accent-color-dark); }
.project-item p { margin-bottom: 1rem; line-height: 1.7; font-size: var(--text-md); }
.project-features { list-style-type: none; padding-left: 0; margin-bottom: 1.5rem; }
.project-features li::before {
  content: '✓'; color: var(--accent-color-light); position: absolute;
  left: 0; top: 1px; font-weight: bold; font-size: 1.1em; 
}
body.dark-mode .project-features li::before { color: var(--accent-color-dark); }
.project-tech { margin-bottom: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tech-tag {
  display: inline-block;
  background-color: rgba(var(--primary-light-r), var(--primary-light-g), var(--primary-light-b), 0.1);
  color: var(--primary-color-light);
  padding: 0.3rem 0.75rem; border-radius: 16px; font-size: var(--text-xs);
  transition: var(--transition); font-weight: 500;
}
body.dark-mode .tech-tag {
  background-color: rgba(var(--primary-dark-r), var(--primary-dark-g), var(--primary-dark-b), 0.2);
  color: var(--primary-color-dark);
}
.tech-tag:hover, .tech-tag:focus {
  background-color: var(--primary-color-light); color: #ffffff; transform: translateY(-2px);
}
body.dark-mode .tech-tag:hover, body.dark-mode .tech-tag:focus {
  background-color: var(--primary-color-dark); color: var(--background-color-dark);
}
.project-link {
  display: inline-block; padding: 0.7rem 1.4rem; background-color: var(--primary-color-light);
  color: #ffffff; text-decoration: none; border-radius: var(--border-radius);
  transition: var(--transition); font-weight: 500; margin-top: 1rem; margin-right: 0.5rem; 
  font-size: var(--text-sm);
}
body.dark-mode .project-link { background-color: var(--primary-color-dark); color: var(--background-color-dark); }
.project-link:hover, .project-link:focus {
  background-color: var(--accent-color-light); color: #ffffff; transform: translateY(-2px);
}
body.dark-mode .project-link:hover, body.dark-mode .project-link:focus {
  background-color: var(--accent-color-dark); color: #ffffff;
}
.project-link i { margin-left: 0.5em; }

/* Blog styles */
#blog { padding: 5rem 0; }
.coming-soon-container {
  text-align: center; padding: 3rem 2rem; 
  background-color: #f9f9f9; 
  border-radius: var(--border-radius); 
  box-shadow: var(--box-shadow-md);
  max-width: 600px; margin: 0 auto;
}
body.dark-mode .coming-soon-container {
  background-color: #1A202C; 
  box-shadow: 0 0 30px rgba(var(--primary-dark-r),var(--primary-dark-g),var(--primary-dark-b),0.1); 
}
.coming-soon-title {
  font-size: var(--text-2xl); 
  color: var(--primary-color-light); 
  margin-bottom: 1rem;
}
body.dark-mode .coming-soon-title { color: var(--primary-color-dark); }
.coming-soon-text { 
  font-size: var(--text-lg);
  color: var(--accent-color-light);
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 1.5rem; 
}
body.dark-mode .coming-soon-text { color: var(--accent-color-dark); }
.coming-soon-description {
  font-size: var(--text-md); 
  line-height: 1.7; 
  color: var(--text-muted-light);
}
body.dark-mode .coming-soon-description { color: var(--text-muted-dark); }


/* Sun (CSS Animated) - If this is a separate decorative element */
/* This .sun class seems to be from an older theme and might not be used. */
/* If not used, it can be removed. */
.sun {
  position: absolute; width: 100px; height: 100px;
  background-color: #FFD700; border-radius: 50%;
  box-shadow: 0 0 30px #FFD700, 0 0 60px #FFFACD; 
  top: 50px; left: 50px; 
  animation: pulseSun 4s ease-in-out infinite;
  z-index: 0; 
}
@keyframes pulseSun {
  0%, 100% { transform: scale(1); box-shadow: 0 0 30px #FFD700, 0 0 60px #FFFACD; }
  50% { transform: scale(1.05); box-shadow: 0 0 45px #FFD700, 0 0 75px #FFFACD, 0 0 100px #FFD700; }
}

/* Responsive Media Queries (Consolidated) */
@media (max-width: 480px) { 
  .container { padding: 0 1rem; } 
  h1, #hero h1 { font-size: var(--text-2xl); } 
  #hero h2 { font-size: var(--text-lg); }
  .cta-button { width: 100%; margin-left: 0; margin-right: 0; margin-bottom: 0.75rem; } 
  .cta-buttons .cta-button:last-child { margin-bottom: 0; }
  
  .skills-container,
  .contact-container { grid-template-columns: 1fr; }
}

/* Accessibility */
.skip-to-content {
  position: absolute; left: -9999px; 
  top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-to-content:focus {
  position: static; width: auto; height: auto;
  padding: 10px; margin: 10px;
  background-color: var(--primary-color-light); color: #ffffff;
  text-align: center; border-radius: var(--border-radius); z-index: 9999; 
}

/* Animations (Consolidated) */
@keyframes fadeIn { 
  from { opacity: 0; }
  to { opacity: 1; }
}
.fade-in { animation: fadeIn 0.5s ease-in forwards; }