html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; 
}

#bgCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: opacity 0.3s ease-in-out; 
}

:root {
  --background-color-light: #FDFEFE; 
  --text-color-light: #1C1C1E; 
  --text-color-light-rgb: 28, 28, 30; 
  --background-color-dark: #121212; 
  --text-color-dark: #EAEAEA;    
  --text-color-dark-rgb: 234, 234, 234; 

  --accent-red: #F94144;    
  --accent-orange: #F3722C; 
  --accent-yellow: #F9C74F; 
  --accent-green: #90BE6D;  
  --accent-blue: #007AFF;   
  --accent-skill-rgb: 249, 199, 79; 
  --accent-purple: #8338EC; 

  --primary-font: 'Open Sans', sans-serif;
  --heading-font: 'Montserrat', sans-serif;

  --nav-hover-about: var(--accent-red);
  --nav-hover-skills: var(--accent-yellow);
  --nav-hover-projects: var(--accent-green);
  --nav-hover-connect: var(--accent-blue);

  --toolbar-bg-light: rgba(255, 255, 255, 0.7); 
  --toolbar-bg-dark: rgba(28, 28, 30, 0.7);  
  --nav-bg-light: rgba(253, 254, 254, 0.85); 
  --nav-bg-dark: rgba(18, 18, 18, 0.85);   
  --footer-bg-light: rgba(253, 254, 254, 0.65); 
  --footer-bg-dark: rgba(18, 18, 18, 0.65);   

  --card-bg-light: #FFFFFF;
  --card-bg-dark: #1E1E1E;
  --card-shadow-light: 0 4px 12px rgba(0,0,0,0.08);
  --card-shadow-dark: 0 4px 12px rgba(0,0,0,0.3);
}

body.dark-mode {
  --background-color: var(--background-color-dark);
  --text-color: var(--text-color-dark);
  --text-color-rgb: var(--text-color-dark-rgb); 
  --toolbar-bg: var(--toolbar-bg-dark);
  --card-bg: var(--card-bg-dark);
  --card-shadow: var(--card-shadow-dark);
}

body:not(.dark-mode) {
  --background-color: var(--background-color-light);
  --text-color: var(--text-color-light);
  --text-color-rgb: var(--text-color-light-rgb); 
  --toolbar-bg: var(--toolbar-bg-light);
  --card-bg: var(--card-bg-light);
  --card-shadow: var(--card-shadow-light);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: var(--primary-font);
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Initially hide body content until fonts are loaded */
body.fonts-loading {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

body:not(.fonts-loading) {
  opacity: 1;
  visibility: visible;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 700; 
}

.navigation {
  position: fixed;
  top: 0;
  width: 100%;
  background: transparent; 
  padding: 1rem 2rem;
  z-index: 1000;
  transition: background-color 0.3s ease;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo a {
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: bold;
  font-family: var(--heading-font); 
  color: var(--text-color);
}
.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

.mobile-menu-close {
  display: none;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  transition: opacity 0.3s ease;
  opacity: 1;
}
.nav-links li a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600; 
  font-family: var(--heading-font); 
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, color 0.3s ease;
}

.nav-links li a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0; 
  height: 100%; 
  width: 100%;
  background-color: transparent; 
  opacity: 0; 
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease, background-color 0.3s ease, opacity 0.3s ease;
  z-index: -1; 
  border-radius: 4px; 
}
.nav-links li a:hover::before {
  transform: scaleX(1);
  opacity: 0.1; 
}

.nav-about:hover::before, .nav-about.active::before { background-color: var(--nav-hover-about); opacity: 0.1; }
.nav-skills:hover::before, .nav-skills.active::before { background-color: var(--nav-hover-skills); opacity: 0.1; }
.nav-projects:hover::before, .nav-projects.active::before { background-color: var(--nav-hover-projects); opacity: 0.1; }
.nav-connect:hover::before, .nav-connect.active::before { background-color: var(--nav-hover-connect); opacity: 0.1; }

.nav-links li a:hover,
.nav-links li a.active {

}
.nav-about:hover, .nav-about.active { color: var(--nav-hover-about); }
.nav-skills:hover, .nav-skills.active { color: var(--nav-hover-skills); }
.nav-projects:hover, .nav-projects.active { color: var(--nav-hover-projects); }
.nav-connect:hover, .nav-connect.active { color: var(--nav-hover-connect); }

.nav-about.active { color: var(--nav-hover-about); }
.nav-skills.active { color: var(--nav-hover-skills); }
.nav-projects.active { color: var(--nav-hover-projects); }
.nav-connect.active { color: var(--nav-hover-connect); }

.nav-scrolled {

  -webkit-backdrop-filter: blur(10px); 
  backdrop-filter: blur(10px);
}
body.dark-mode .nav-scrolled {
  background: var(--nav-bg-dark);
}
body:not(.dark-mode) .nav-scrolled {
  background: var(--nav-bg-light);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  .nav-links {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh; 
    width: 100%;
    background-color: var(--background-color); 
    z-index: 1500;

    opacity: 0; 
    visibility: hidden; 
    transform: translateX(-100%); 
    transition: opacity 0.3s ease, visibility 0s linear 0.3s, transform 0.3s ease-out; 
  }
  .nav-links.mobile-open {

    opacity: 1;
    visibility: visible;
    transform: translateX(0); 
    transition-delay: 0s, 0s, 0s; 
  }
  .nav-links li {
    margin: 1rem 0;
    font-size: 1.5rem; 
  }
  .mobile-menu-close {
    display: block;
    position: absolute;
    top: 20px;
    right: 20px;
  }
}

.fade-out {
  opacity: 0 !important; 
  transform: scale(0.95); 
  transition: opacity 0.3s ease, transform 0.3s ease; 
}

#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column; 
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  animation: fadeIn 1s ease-out;
  position: relative;
  z-index: 1;
  overflow: hidden; 
}
.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem); 
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--text-color); 
}
.hero-content .tagline {
  font-size: clamp(1rem, 2.5vw, 1.5rem); 
  margin-top: 1rem;
  font-weight: 400;
  color: var(--text-color); 
  max-width: 600px; 
}

.scroll-down-btn {
  margin-top: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 2rem;
  color: var(--text-color);
  transition: transform 0.3s ease;
}
.scroll-down-btn:hover {
  transform: translateY(5px);
}


.section {
  padding: 4rem 2rem; 
  text-align: center; 
}
.section h2 {
  font-size: clamp(2rem, 4vw, 3rem); 
  margin-bottom: 2rem; 
  position: relative;
  display: inline-block; 
  padding-bottom: 0.75rem; 
  text-align: center; 
}

.section h2::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 0; 
  height: 4px; 
  background-color: var(--accent-blue); 
  border-radius: 2px; 
  transition: width 0.6s cubic-bezier(0.645, 0.045, 0.355, 1); 
  transition-delay: 0.3s; 
}

.section h2.revealed::after {
  width: 80px; 
}

#about h2::after { background-color: var(--nav-hover-about); }
#about > h2 { text-align: center; width: 100%; }
#skills h2::after { background-color: var(--nav-hover-skills); }
#skills > h2 { text-align: center; width: 100%; }
#projects h2::after { background-color: var(--nav-hover-projects); } 
#projects > h2 { text-align: center; width: 100%;}
#about, #skills, #projects, #connect { padding: 4rem 2rem; }

.about-section p {
  max-width: 700px;
  margin: 1rem auto;
  text-align: center;
}

.skills-section { text-align: center; }

.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.skill-badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  background-color: rgba(var(--text-color-rgb), 0.1);
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.skill-badge:hover {
  background-color: rgba(var(--accent-skill-rgb), 0.2);
  cursor: pointer;
}
.accent-bg-red { background-color: var(--accent-red); color: #fff; }
.accent-bg-red i { color: #fff; }

.accent-bg-yellow { background-color: var(--accent-yellow); color: #fff; } 
.accent-bg-yellow i { color: #fff; }

.accent-bg-green { background-color: var(--accent-green); color: #fff; }
.accent-bg-green i { color: #fff; }

.accent-bg-blue i { color: #fff; }

.accent-bg-purple { background-color: var(--accent-purple); color: #fff; }
.accent-bg-purple i { color: #fff; }

#stats h2::after { background-color: var(--accent-yellow); } 
#stats > h2 { text-align: center; width: 100%;}
.showcase {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 3rem 2rem;
}
.stat {
  background-color: var(--card-bg);
  color: var(--text-color);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  flex: 1; 
  min-width: 200px; 
}
.stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.12);
}
body.dark-mode .stat:hover {
  box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}
.stat h2 {
  font-size: 1.2rem; 
  margin-bottom: 0.5rem;
  color: var(--accent-yellow); 
}
.stat h2::after { display: none; } 

.stat p {
  font-size: 2rem; 
  font-weight: bold;
}

#projects h2::after { background-color: var(--nav-hover-projects); } 
#projects > h2 { text-align: center; width: 100%;}
.cards-section {

}

.cards-container {
  display: flex; 
  flex-wrap: wrap; 
  justify-content: center; 
  gap: 2rem; 
  padding: 0 1rem; 
}
@media (max-width: 768px) {
  .cards-container {
    flex-direction: column;
    overflow-x: visible;
    align-items: center; 
  }
}
.card {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-radius: 12px; 
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
  width: 100%; 
  max-width: 360px; 
  display: flex;
  flex-direction: column;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-5px) !important;
  box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}
body.dark-mode .card:hover {
  box-shadow: 0 12px 24px rgba(0,0,0,0.45);
}
.card h3 {
  font-size: 1.35rem; 
  margin: 1rem 1.5rem 0.5rem 1.5rem; 
  color: var(--text-color); 
}
.short-description {
  font-size: 0.95rem;
  padding: 0 1.5rem 1.5rem 1.5rem; 
  flex-grow: 1; 
  color: var(--text-color); 
  opacity: 0.8;
}

.chips {
  margin-bottom: 1rem; 
  padding: 0 1.25rem; 
}
.chip {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 15px; 
  font-size: 0.75rem;
  font-weight: 600; 
  margin: 0.25rem;
  text-transform: uppercase; 
  letter-spacing: 0.5px;
}

.chip.red { background-color: var(--accent-red); color: #fff; }
.chip.orange { background-color: var(--accent-orange); color: #fff; }
.chip.yellow { background-color: var(--accent-yellow); color: var(--text-color-light); } 
.chip.green { background-color: var(--accent-green); color: #fff; }
.chip.blue { background-color: var(--accent-blue); color: #fff; }
.chip.purple { background-color: var(--accent-purple); color: #fff; }

.card-details {
  display: none;
}

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.8);
  transition: opacity 0.3s ease;
  opacity: 1;

  align-items: center;
  justify-content: center;
}
.modal-content {
  background-color: var(--card-bg); 
  color: var(--text-color);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  position: relative;
  width: 90%;
  max-width: 700px;
  animation: modalFadeIn 0.3s ease;
  text-align: left; 
}
.modal-content h2 {
  font-family: var(--heading-font);
  margin-top: 0;
  margin-bottom: 1rem;

}
.modal-content .chips {
  margin-bottom: 1rem;
  padding-left: 0; 
  padding-right: 0; 
}
.modal-content p { margin-bottom: 1rem; opacity: 0.9; }

.modal-action-btn {
  display: inline-block;
  background: linear-gradient(to right, var(--accent-red) 0%, #FF6B6B 50%, var(--accent-red) 100%); 
  background-size: 200% 100%;
  background-position: 0 0; 
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 25px; 
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  margin-top: 1rem;
  transition: background-position 0.4s ease-in-out, transform 0.2s ease;
}

.modal-action-btn:hover {
  background-position: 100% 0; 
  transform: translateY(-2px);
}

.btn-open-project {
  background: white; 
  color: #121212; 
  padding: 0.75rem 2rem; 
  position: relative; 
  overflow: hidden; 
  z-index: 1; 
}

.btn-open-project span { 
  position: relative;
  z-index: 2; 
}

.btn-open-project::after {
  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 0.4s ease-in-out;
  z-index: 1; 
}

.btn-open-project:hover::after {
  left: 100%; 
}

body:not(.dark-mode) .btn-open-project {
  background: #121212; 
  color: white;
}

body:not(.dark-mode) .btn-open-project::after {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 0, 0, 0.2), 
    transparent
  );
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  color: var(--text-color);
  font-size: 1.5rem;
  cursor: pointer;
  background: none;
  border: none;
}

#connect h2::after { background-color: var(--accent-blue); } 
#connect > h2 { text-align: center; width: 100%;}
.section.connect {

}

.section.connect h2 {

  margin-bottom: 1rem;
}

.connect-cards-container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem; 
  margin-top: 2rem; 
}

.connect-card {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  padding: 1.5rem 2rem; 
  text-decoration: none;
  display: flex;
  flex-direction: column; 
  align-items: center; 
  justify-content: center; 
  min-width: 180px; 
  min-height: 150px; 
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.connect-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.12);
}

body.dark-mode .connect-card:hover {
  box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

.connect-card i {
  font-size: 2.5rem; 
  margin-bottom: 1rem; 
}

.connect-icon-svg {
  width: 2.0rem; 
  height: 2.0rem; 
  margin-bottom: 1rem; 
  fill: currentColor; 
}

.connect-card span {
  font-size: 1rem;
  font-weight: 600;
}

.connect-card.card-instagram i {
  color: #E1306C; 
}

.connect-card.card-linkedin i {
  color: #0A66C2; 
}

.connect-card.card-x i {
  color: var(--text-color); 
}

.social-icons {

}

.social-link {

}

.social-icons {
  display: none; 
}

footer {
  text-align: center;
  padding: 3rem 1rem; 
  color: var(--text-color);
  font-size: 0.9rem;
  margin-top: 4rem; 
  transition: background-color 0.4s ease; 
  -webkit-backdrop-filter: blur(10px); 
  backdrop-filter: blur(10px);
  background-color: var(--footer-bg-light);
}

body.dark-mode footer {
  background-color: var(--footer-bg-dark);
}

.footer-extra-text {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  opacity: 0.7;
}

.toolbar {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column; 
  gap: 0.75rem; 
  z-index: 1001;
  align-items: flex-end; 
}

@media (max-width: 768px) {
  .toolbar {
    visibility: hidden; 
    opacity: 0;
    transition: visibility 0.3s linear, opacity 0.3s ease;
  }
  .toolbar.mobile-nav-is-open {
    visibility: visible; 
    opacity: 1;
  }
}

.toolbar--small, .toolbar--expanded {

}

.toolbar-btn {
  background-color: var(--toolbar-bg); 
  backdrop-filter: blur(5px); 
  -webkit-backdrop-filter: blur(5px);
  border: none;
  color: var(--text-color);
  padding: 0.75rem; 
  border-radius: 50%; 
  cursor: pointer;
  font-size: 1.2rem; 
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 8px rgba(0,0,0,0.15); 
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, bottom 0.3s ease-out; 
  position: relative; 

}

#modeToggle {
 position: fixed;
 right: 20px;
 bottom: 20px; 
 z-index: 1002;
}

#scrollTop {
 position: fixed;
 right: 20px;

 z-index: 1001; 
}

#modeToggle.mode-toggle--raised {
  bottom: 80px; 
}

.toolbar-btn:hover {

  transform: scale(1.1); 
  box-shadow: 0 5px 12px rgba(0,0,0,0.2);
}
body.dark-mode .toolbar-btn:hover {

}

#scrollTop.hidden {

  opacity: 0;
  transform: translateY(20px) scale(0.9); 
  pointer-events: none;
  visibility: hidden;
}

#scrollTop {
  opacity: 1;
  transform: translateY(0) scale(1);
  visibility: visible;

  bottom: 20px; 

  transition: opacity 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
              visibility 0s linear 0.3s; 
}

#scrollTop.hidden {
    visibility: hidden;
    transition: opacity 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
                visibility 0s linear 0.3s;
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.645, 0.045, 0.355, 1), 
              transform 0.7s cubic-bezier(0.645, 0.045, 0.355, 1);

}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.645, 0.045, 0.355, 1), 
              transform 0.7s cubic-bezier(0.645, 0.045, 0.355, 1);

}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}