/* ==================== VARIABLES ==================== */
:root {
  --header-height: 4rem;

  /* Colors */
  --hue-color: 210;
  
  --first-color: hsl(var(--hue-color), 100%, 50%); /* Vibrant Blue */
  --first-color-alt: hsl(var(--hue-color), 100%, 40%);
  --first-color-light: hsl(var(--hue-color), 100%, 80%);
  
  --title-color: hsl(var(--hue-color), 8%, 95%);
  --text-color: hsl(var(--hue-color), 8%, 75%);
  --text-color-light: hsl(var(--hue-color), 8%, 65%);
  
  --body-color: #050505; /* Deep Black */
  --container-color: rgba(20, 20, 25, 0.6); /* Glass effect var */
  --card-color: rgba(30, 30, 40, 0.4);
  
  /* Steam Color */
  --steam-color: #1b2838;
  --steam-color-alt: #2a475e;
  --steam-gradient: linear-gradient(to right, #1b2838, #2a475e, #66c0f4);

  /* Typography */
  --body-font: 'Inter', sans-serif;
  --title-font: 'Outfit', sans-serif;
  
  --biggest-font-size: 2.5rem;
  --h1-font-size: 2.25rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.813rem;

  /* Font weight */
  --font-light: 300;
  --font-regular: 400;
  --font-semi-bold: 600;
  --font-bold: 700;
  --font-black: 900;

  /* Margins/Paddings */
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  /* Z Index */
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
  
  /* Transitions */
  --trans-fast: 0.2s ease;
  --trans-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --trans-slow: 0.7s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Responsive Typography */
@media screen and (min-width: 968px) {
  :root {
    --biggest-font-size: 4.5rem;
    --h1-font-size: 3rem;
    --h2-font-size: 2.25rem;
    --h3-font-size: 1.5rem;
    --normal-font-size: 1.125rem;
    --small-font-size: 0.938rem;
    --smaller-font-size: 0.875rem;
  }
}

/* ==================== BASE ==================== */
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3, h4 {
  color: var(--title-color);
  font-family: var(--title-font);
  font-weight: var(--font-bold);
  line-height: 1.2;
}

ul {
  list-style: none;
}

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

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

button, input {
  border: none;
  outline: none;
  font-family: var(--body-font);
}

button {
  cursor: pointer;
  background: transparent;
}

/* ==================== BACKGROUND EFFECTS ==================== */
#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
}

.bg-glow-1 {
  top: -20%;
  left: -10%;
  background: radial-gradient(circle, rgba(0, 123, 255, 0.2) 0%, rgba(0, 0, 0, 0) 70%);
}

.bg-glow-2 {
  bottom: -20%;
  right: -10%;
  background: radial-gradient(circle, rgba(40, 100, 200, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
}

/* ==================== REUSABLE CSS CLASSES ==================== */
.section {
  padding: 6rem 0 2rem;
}

.section__title {
  font-size: var(--h1-font-size);
  margin-bottom: var(--mb-2);
}

.title-center {
  text-align: center;
}

.container {
  max-width: 1100px;
  margin-inline: 1.5rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

/* Glassmorphism Card */
.feature-card {
  background: var(--card-color);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  transition: transform var(--trans-normal), box-shadow var(--trans-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(0, 123, 255, 0.4);
  border-color: rgba(0, 123, 255, 0.5);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 3rem;
  font-weight: var(--font-semi-bold);
  transition: all var(--trans-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: width var(--trans-normal);
  z-index: -1;
}

.button:hover::before {
  width: 100%;
}

.button--primary {
  background-color: var(--first-color);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 123, 255, 0.4);
}

.button--primary:hover {
  background-color: var(--first-color-alt);
  box-shadow: 0 6px 25px rgba(0, 123, 255, 0.6);
  transform: translateY(-2px);
}

.button--ghost {
  background-color: transparent;
  color: var(--title-color);
  border: 2px solid var(--first-color);
}

.button--ghost:hover {
  background-color: rgba(0, 123, 255, 0.1);
  transform: translateY(-2px);
}

.button--steam {
  background: var(--steam-gradient);
  color: #fff;
  font-size: var(--h3-font-size);
  padding: 1.25rem 2.5rem;
  border-radius: 0.75rem;
  width: 100%;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(27, 40, 56, 0.6);
}

.button--steam i {
  font-size: 2rem;
}

.button--steam:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(0, 123, 255, 0.6);
}

/* ==================== HEADER & NAV ==================== */
.header {
  width: 100%;
  background-color: transparent;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  transition: var(--trans-normal);
}

.header.scroll-header {
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-family: var(--title-font);
  font-weight: var(--font-black);
  font-size: var(--h2-font-size);
  color: var(--title-color);
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-text {
  background: linear-gradient(90deg, #fff, var(--first-color-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.8rem;
  border-radius: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lang-btn {
  color: var(--text-color);
  font-size: var(--small-font-size);
  font-weight: var(--font-semi-bold);
  transition: var(--trans-fast);
}

.lang-btn:hover {
  color: var(--first-color-light);
}

.lang-btn.active {
  color: var(--first-color);
}

.lang-divider {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
  opacity: 0.5;
}

.nav__toggle {
  color: var(--title-color);
  font-size: 1.5rem;
  cursor: pointer;
  display: inline-flex;
}

.nav__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  color: var(--title-color);
  cursor: pointer;
  display: none;
}

/* Main Menu Mobile */
@media screen and (max-width: 767px) {
  .nav__menu {
    position: fixed;
    top: calc(var(--header-height) + 0.75rem);
    right: 1rem;
    left: auto;
    width: min(14rem, calc(100vw - 2rem));
    padding: 1rem;
    background-color: rgba(8, 8, 10, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.75rem) scale(0.98);
    transition: opacity var(--trans-fast), transform var(--trans-fast), visibility var(--trans-fast);
    visibility: hidden;
  }

}

.nav__list {
  display: flex;
  flex-direction: column;
  text-align: center;
  gap: 2rem;
}

.nav__link {
  color: var(--title-color);
  font-weight: var(--font-semi-bold);
  font-size: var(--h3-font-size);
  font-family: var(--title-font);
  transition: var(--trans-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--first-color);
  transition: var(--trans-fast);
  transform: translateX(-50%);
}

.nav__link:hover {
  color: var(--first-color-light);
}

.nav__link:hover::after, 
.active-link::after {
  width: 50%;
}

.active-link {
  color: var(--first-color-light);
}

/* Show menu */
.show-menu {
  top: 0;
}
.show-menu .nav__close {
  display: block;
}

@media screen and (max-width: 767px) {
  .nav__menu.show-menu {
    top: calc(var(--header-height) + 0.75rem);
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
    visibility: visible;
  }

  .nav__list {
    gap: 0.75rem;
  }

  .nav__link {
    display: inline-flex;
    justify-content: center;
    width: 100%;
    padding: 0.45rem 0;
    font-size: 1rem;
  }

  .show-menu .nav__close {
    display: none;
  }
}

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
}

.hero__data {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.hero__logo {
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
  filter: drop-shadow(0 0 20px rgba(0, 123, 255, 0.2));
  transition: var(--trans-normal);
}

.hero__logo:hover {
  filter: drop-shadow(0 0 40px rgba(0, 123, 255, 0.5));
  transform: scale(1.02);
}

.hero__title {
  font-size: var(--biggest-font-size);
  font-weight: var(--font-black);
  margin-bottom: var(--mb-2);
  background: linear-gradient(135deg, #ffffff, var(--first-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  max-width: 800px;
}

.hero__buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0.7;
  animation: bounce 2s infinite;
}

.mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--text-color);
  border-radius: 12px;
  position: relative;
}

.mouse::before {
  content: '';
  width: 4px;
  height: 8px;
  background-color: var(--text-color);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% { transform: translate(-50%, 0); opacity: 1; }
  100% { transform: translate(-50%, 15px); opacity: 0; }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
  40% { transform: translateY(-10px) translateX(-50%); }
  60% { transform: translateY(-5px) translateX(-50%); }
}

/* ==================== ABOUT ==================== */
.about__container {
  align-items: center;
}

.about__description {
  font-size: var(--h3-font-size);
  color: var(--title-color);
  margin-bottom: var(--mb-2-5);
  font-weight: var(--font-light);
  line-height: 1.8;
}

.about__stats {
  grid-template-columns: 1fr;
  gap: 1.5rem;
  text-align: center;
}

.stat__item {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--trans-fast);
}

.stat__item i {
  font-size: 2.5rem;
  color: var(--first-color);
  margin-bottom: var(--mb-0-5);
}

.stat__item:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-5px);
}

/* ==================== GAMES (CAROUSEL) ==================== */
.game__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--mb-1-5);
  flex-wrap: wrap;
  gap: 1rem;
}

.game__title {
  font-size: var(--biggest-font-size);
  font-weight: var(--font-black);
  background: linear-gradient(90deg, #fff, var(--first-color-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.game__badge {
  background: rgba(0, 123, 255, 0.1);
  color: var(--first-color-light);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: var(--small-font-size);
  font-weight: var(--font-bold);
  border: 1px solid rgba(0, 123, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(0, 123, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 123, 255, 0); }
}

/* Carousel */
.carousel {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: var(--mb-2);
  aspect-ratio: 16/9;
  background: #000;
  box-shadow: 0 15px 40px rgba(0,0,0,0.5);
}

.carousel__inner {
  width: 100%;
  height: 100%;
  position: relative;
}

.carousel__item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--trans-slow);
  z-index: 1;
}

.carousel__item.active {
  opacity: 1;
  z-index: 2;
}

.carousel__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 5s ease;
}

.carousel__item.active img {
  transform: scale(1.05); /* Slow zoom effect */
}

.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  z-index: 5;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--trans-fast);
}

.carousel__btn:hover {
  background: var(--first-color);
  transform: translateY(-50%) scale(1.1);
}

.carousel__btn.prev { left: 1rem; }
.carousel__btn.next { right: 1rem; }

.carousel__indicators {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 5;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: var(--trans-fast);
}

.carousel__dot.active {
  background: var(--first-color);
  transform: scale(1.3);
}

/* ==================== CONTACT ==================== */
.contact__container {
  row-gap: 3rem;
}

.contact__content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact__description {
  margin-bottom: var(--mb-2);
}

.contact__email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--h2-font-size);
  font-family: var(--title-font);
  font-weight: var(--font-bold);
  color: var(--title-color);
  margin-bottom: var(--mb-2-5);
  transition: var(--trans-fast);
}

.contact__email:hover {
  color: var(--first-color);
  transform: translateY(-2px);
}

.contact__form {
  position: relative;
}

.form__group {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 3rem;
  padding: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--trans-fast);
}

.form__group:focus-within {
  border-color: var(--first-color);
  box-shadow: 0 0 15px rgba(0, 123, 255, 0.2);
}

.form__input {
  flex: 1;
  background: transparent;
  color: var(--title-color);
  padding: 0 1.5rem;
  font-size: var(--normal-font-size);
}

.form__input::placeholder {
  color: var(--text-color-light);
}

.form__message {
  margin-top: 1rem;
  font-size: var(--small-font-size);
  font-weight: var(--font-semi-bold);
}

.contact__form .form__note {
  margin-top: 0.5rem;
  color: var(--text-color-light);
  font-size: 0.68rem;
  line-height: 1.35;
  opacity: 0.55;
}

.msg-success {
  color: #4BB543;
}

/* ==================== FOOTER ==================== */
.footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0, 0, 0, 0.5);
}

.footer__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer__copy {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
}

.footer__version {
  color: var(--text-color-light);
  font-size: var(--smaller-font-size);
  opacity: 0.55;
}

.footer__social {
  display: flex;
  gap: 1.5rem;
}

.footer__social-link {
  font-size: 1.5rem;
  color: var(--text-color-light);
  transition: var(--trans-fast);
}

.footer__social-link:hover {
  color: var(--first-color);
  transform: translateY(-3px);
}

/* ==================== ANIMATIONS ==================== */
.slide-in-bottom {
  opacity: 0;
  transform: translateY(30px);
  animation: slideInBottom 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes slideInBottom {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

/* ==================== MEDIA QUERIES ==================== */
/* For medium devices */
@media screen and (min-width: 768px) {
  body {
    margin: 0;
  }

  .nav {
    height: calc(var(--header-height) + 1.5rem);
  }

  .nav__toggle, .nav__close {
    display: none;
  }

  .nav__list {
    flex-direction: row;
    column-gap: 3rem;
  }

  .nav__link {
    font-size: var(--normal-font-size);
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* For small devices (Form Stack) */
@media screen and (max-width: 767px) {
  .feature-card {
    padding: 1.5rem;
    border-radius: 1.25rem;
  }

  .game__header {
    margin-bottom: var(--mb-1);
  }

  .game__title {
    width: 100%;
    font-size: 2rem;
    line-height: 1.1;
  }

  .game__badge {
    font-size: 0.75rem;
    padding: 0.45rem 0.85rem;
  }

  .carousel__btn {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.6rem;
  }

  .contact__content {
    max-width: calc(100vw - 2rem);
  }

  .contact__description {
    font-size: 0.95rem;
    line-height: 1.55;
    margin-bottom: var(--mb-1-5);
  }

  .contact__email {
    max-width: 100%;
    align-items: flex-start;
    justify-content: center;
    gap: 0.45rem;
    font-size: clamp(0.9rem, 4.2vw, 1.1rem);
    line-height: 1.3;
    overflow-wrap: anywhere;
    word-break: break-word;
    margin-bottom: var(--mb-2);
  }

  .contact__email i {
    flex: 0 0 auto;
    margin-top: 0.15rem;
  }

  .form__group {
    flex-direction: column;
    background: transparent;
    border: none;
    padding: 0;
    gap: 1rem;
  }

  .form__input {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 3rem;
    padding: 1rem 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
  }

  .form__btn {
    width: 100%;
    justify-content: center;
  }
}

/* For large devices */
@media screen and (min-width: 1024px) {
  .container {
    margin-inline: auto;
  }
  
  .about__container {
    padding: 0 4rem;
  }
}