:root {
  --font-primary: 'Poppins', sans-serif;
  --font-display: 'Amatic SC', cursive;

  --bg-color-light: #e8efff;
  --bg-gradient-light: linear-gradient(135deg, #d3e7ff 0%, #fde6f4 100%);
  --text-color-light: #1c2a4a;
  --header-bg-light: rgba(255, 255, 255, 0.6);
  --card-bg-light: rgba(255, 255, 255, 0.45);
  --primary-accent-light: #0d3ddc;
  --secondary-accent-light: #263f7c;
  --glow-color-light: rgba(76, 116, 255, 0.5);

  --bg-color-dark: #0d1117;
  --bg-gradient-dark: linear-gradient(135deg, #0d1117 0%, #161e3d 100%);
  --text-color-dark: #c9d1d9;
  --header-bg-dark: rgba(22, 27, 34, 0.65);
  --card-bg-dark: rgba(22, 27, 34, 0.5);
  --primary-accent-dark: #58a6ff;
  --secondary-accent-dark: #88c0ff;
  --glow-color-dark: rgba(88, 166, 255, 0.6);

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-lg-light: 0 10px 40px rgba(76, 116, 255, 0.2);
  --shadow-lg-dark: 0 0 25px rgba(88, 166, 255, 0.25);
}

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

@keyframes backgroundPan {
	0% { background-position: 0% 50%; }
	50% { background-position: 100% 50%; }
	100% { background-position: 0% 50%; }
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-color-light);
  background-image: var(--bg-gradient-light);
  background-size: 200% 200%;
  color: var(--text-color-light);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.4s ease, color 0.4s ease;
  animation: backgroundPan 15s ease infinite;
}

body.dark-mode {
  background-color: var(--bg-color-dark);
  background-image: var(--bg-gradient-dark);
  color: var(--text-color-dark);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #181a20; }
::-webkit-scrollbar-thumb { background: #58a6ff; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #88c0ff; }

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0; left: 0;
    z-index: -1;
}

.container {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: clamp(2.5rem, 6vw, 4rem);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

section {
  animation: fadeInUp 0.8s 0.2s cubic-bezier(.215,.61,.355,1) backwards;
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--header-bg-light);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid rgba(120, 150, 200, 0.2);
}

body.dark-mode header {
  background: var(--header-bg-dark);
  border-bottom: 1px solid rgba(88, 166, 255, 0.2);
}

.logo-area {
  display: flex; align-items: center; gap: 1rem;
}
.logo-area img {
  width: 52px; height: 52px; border-radius: 14px;
}
.logo-dark { display: none; }
.logo-light { display: inline; }
body.dark-mode .logo-light { display: none; }
body.dark-mode .logo-dark { display: inline; }

header h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 2.8rem);
  color: var(--primary-accent-light);
  font-weight: 700; margin: 0;
  line-height: 1; letter-spacing: 0.03em;
  user-select: none;
  transition: color 0.4s ease;
}
body.dark-mode header h1 { color: var(--primary-accent-dark); }

nav ul {
  display: flex; list-style: none; gap: 1.5rem;
}
nav li a {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--secondary-accent-light);
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color 0.3s ease;
  text-decoration: none;
}
body.dark-mode nav li a { color: var(--secondary-accent-dark); }

nav li a::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-accent-light);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.3s ease-out;
}
body.dark-mode nav li a::after { background-color: var(--primary-accent-dark); }
nav li a:hover::after, nav li a:focus::after, nav li.active a::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}
nav li a:hover, nav li.active a { color: var(--primary-accent-light); }
body.dark-mode nav li a:hover, body.dark-mode nav li.active a { color: var(--primary-accent-dark); }

#darkModeToggle { font-size: 1.1rem; }

.menu-toggle { display: none; }

#games-gallery {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.game-card {
  background: var(--card-bg-light);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.8rem;
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  transform-style: preserve-3d;
}
body.dark-mode .game-card {
  background: var(--card-bg-dark);
  border-color: rgba(88, 166, 255, 0.15);
  box-shadow: 0 0 15px rgba(0,0,0,0.2);
}

.game-card:hover, .game-card:focus-within {
  transform: scale(1.05) perspective(1000px) rotateY(2deg) rotateX(3deg);
  box-shadow: var(--shadow-lg-light);
  border-color: var(--primary-accent-light);
}
body.dark-mode .game-card:hover, body.dark-mode .game-card:focus-within {
  box-shadow: var(--shadow-lg-dark);
  border-color: var(--primary-accent-dark);
}

.game-icon {
  font-size: 4.5rem; text-align: center; margin-bottom: 1rem;
  line-height: 1; user-select: none;
  transition: text-shadow 0.3s ease;
}
body.dark-mode .game-card:hover .game-icon {
  text-shadow: 0 0 15px var(--glow-color-dark), 0 0 30px var(--glow-color-dark);
}

.game-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 2.6rem);
  color: var(--primary-accent-light); margin: 0 0 0.5rem 0;
  text-align: center; transition: color 0.4s ease;
}
body.dark-mode .game-title { color: var(--primary-accent-dark); }

.game-desc {
  font-size: 1.05rem; font-weight: 400; color: var(--secondary-accent-light);
  flex-grow: 1; user-select: none; text-align: center;
  margin-bottom: 1.5rem; transition: color 0.4s ease;
}
body.dark-mode .game-desc { color: var(--text-color-dark); }

.btn-play {
  font-weight: 700; font-size: 1.1rem;
  background: var(--primary-accent-light); color: white;
  padding: 0.7em 1.5em; border: none; border-radius: 15px;
  box-shadow: 0 4px 15px var(--glow-color-light);
  user-select: none; transition: all 0.2s ease-out;
  text-align: center; text-decoration: none;
  align-self: center;
}
body.dark-mode .btn-play {
  background: var(--primary-accent-dark); color: #0d1117;
  box-shadow: 0 0 20px var(--glow-color-dark);
}
.btn-play:hover, .btn-play:focus {
  transform: translateY(-3px);
  box-shadow: 0 7px 20px var(--glow-color-light);
}
body.dark-mode .btn-play:hover, body.dark-mode .btn-play:focus {
  box-shadow: 0 0 25px var(--glow-color-dark), 0 0 35px var(--glow-color-dark);
}
.btn-play:active { transform: translateY(-1px) scale(0.98); }

#info {
  background: var(--card-bg-light); border-radius: 26px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: var(--shadow-sm); line-height: 1.6;
  border: 1px solid transparent;
}
body.dark-mode #info {
  background: var(--card-bg-dark);
  border-color: rgba(88, 166, 255, 0.15);
}
#info h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.3rem, 5vw, 2.7rem);
  margin-top: 0; margin-bottom: 1rem; color: var(--primary-accent-light);
}
body.dark-mode #info h2 { color: var(--primary-accent-dark); }

#info ul { list-style: none; padding-left: 0; }
#info ul li {
  margin-bottom: 0.75rem; padding-left: 1.6rem; position: relative;
  font-weight: 500;
}
#info ul li::before {
  content: "▸"; position: absolute; left: 0; top: 0;
  color: var(--primary-accent-light); font-weight: 700;
  transition: color 0.4s ease;
}
body.dark-mode #info ul li::before { color: var(--primary-accent-dark); }

footer {
  text-align: center; padding: 1.5rem 1rem;
  margin-top: auto; user-select: none;
  background: var(--header-bg-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--secondary-accent-light);
  font-weight: 500; font-size: 0.95rem;
  border-top: 1px solid rgba(120, 150, 200, 0.2);
}
body.dark-mode footer {
  background: var(--header-bg-dark);
  color: var(--text-color-dark);
  border-top: 1px solid rgba(88, 166, 255, 0.2);
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    width: 70%;
    height: 100vh;
    background: var(--header-bg-light);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding-top: 6rem;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.2, 1, 0.3, 1);
  }
  body.dark-mode .nav-menu { background: var(--header-bg-dark); }

  .nav-menu.active { transform: translateX(0); }
  nav ul { flex-direction: column; align-items: center; gap: 2.5rem; }
  nav li a { font-size: 1.5rem; }

  .menu-toggle {
    display: block;
    width: 28px; height: 22px;
    background: transparent; border: none;
    cursor: pointer; position: relative; z-index: 1001;
  }
  .menu-toggle span {
    display: block; width: 100%; height: 3px;
    background-color: var(--primary-accent-light);
    border-radius: 3px; position: absolute;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  body.dark-mode .menu-toggle span { background-color: var(--primary-accent-dark); }
  .menu-toggle span:nth-child(1) { top: 0; }
  .menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
  .menu-toggle span:nth-child(3) { bottom: 0; }

  .menu-toggle.active span:nth-child(1) { transform: translateY(9.5px) rotate(45deg); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: translateY(-9.5px) rotate(-45deg); }
}









/*Additional features*/
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
    position: absolute;
    top: -100px; /* Hide off-screen */
    left: 0;
    background: var(--primary-accent-dark);
    color: rgb(219, 18, 18);
    padding: 1rem 1.5rem;
    z-index: 9999;
    transition: top 0.3s ease-in-out;
    border-bottom-right-radius: 8px;
    font-weight: 700;
}
.skip-link:focus {
    top: 0;
}

#about-summary .learn-more-link {
    color: var(--primary-accent-light);
    font-weight: 600;
    text-decoration: underline;
}
body.dark-mode #about-summary .learn-more-link {
    color: var(--primary-accent-dark);
}

.page-container {
    animation: fadeInUp 0.8s 0.2s cubic-bezier(.215,.61,.355,1) backwards;
    background: var(--card-bg-light);
    border-radius: 26px;
    padding: clamp(1.5rem, 4vw, 2.5rem);
    box-shadow: var(--shadow-sm);
    border: 1px solid transparent;
}
body.dark-mode .page-container {
    background: var(--card-bg-dark);
    border-color: rgba(88, 166, 255, 0.15);
}

.page-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--primary-accent-light);
    text-align: center;
}
body.dark-mode .page-title {
    color: var(--primary-accent-dark);
}

.text-content {
    line-height: 1.7;
    font-size: 1.1rem;
}
.text-content h3 {
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-accent-light);
}
body.dark-mode .text-content h3 {
    color: var(--secondary-accent-dark);
}
.text-content ol { padding-left: 2rem; }
.text-content strong { color: var(--text-color-light); }
body.dark-mode .text-content strong { color: var(--text-color-dark); }


/* Contact Form */
.contact-form {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.form-group { display: flex; flex-direction: column; }
.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.form-group input, .form-group textarea {
    padding: 0.8rem 1rem;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.5);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}
body.dark-mode .form-group input, body.dark-mode .form-group textarea {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-color-dark);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-accent-light);
    box-shadow: 0 0 10px var(--glow-color-light);
}
body.dark-mode .form-group input:focus, body.dark-mode .form-group textarea:focus {
    border-color: var(--primary-accent-dark);
    box-shadow: 0 0 10px var(--glow-color-dark);
}

.form-submit-btn { align-self: center; width: auto; cursor: pointer; }


/* Footer Enhancements */
footer .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-nav {
    display: flex;
    gap: 1.5rem;
}
.footer-nav a {
    text-decoration: underline;
    text-underline-offset: 4px;
}

@media (max-width: 600px) {
    footer .footer-content {
        flex-direction: column;
        justify-content: center;
    }
}