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

:root {
  --accent: var(--theme-accent, #a58eff);
  --bg: var(--theme-bg, #0d0d0d);
  --text: var(--theme-text, #ffffff);
  --glow-spread: rgba(165, 142, 255, 0.15);
  --btn-color: #1a1026;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: sans-serif;
  display: flex;
  height: 100vh;
  text-align: center;
}

/* HEADER */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #1b1b1b;
  padding: 10px 30px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 10px;
  z-index: 100;
  box-shadow: 0 0 10px #a58eff;

}

header h1 {
  --glow-color: rgb(59, 46, 179);
  color: #fff;
  font-size: 1.8rem;
  text-shadow: 0 0 .5em var(--glow-color);
}

header img {
  height: 40px;
}

/* TOP BAR */
.top-bar {
  --glow-color: var(--accent);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background-color: #222;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: 30px;
  font-weight: bold;
  z-index: 1000;
  text-shadow: 0 0 .5em var(--glow-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.top-bar-title {
  flex: 1;
  text-align: center;
}

.wishlist-btn {
  --glow-color: var(--accent);
  --glow-spread-color: var(--glow-spread);
  --btn-color: var(--btn-color);

  position: relative;
  top: 0;
  right: 0;
  z-index: 1;

  font-size: 15px;
  font-weight: bold;
  padding: 8px 14px;
  color: var(--glow-color);
  background-color: var(--btn-color);
  border: .25em solid var(--glow-color);
  border-radius: 1em;
  text-shadow: 0 0 .5em var(--glow-color);
  box-shadow:
    0 0 1em .25em var(--glow-color),
    0 0 4em 1em var(--glow-spread-color),
    inset 0 0 .75em .25em var(--glow-color);
  cursor: pointer;
  transition: all 0.3s;
}

.wishlist-btn:hover {
  color: var(--btn-color);
  background-color: var(--glow-color);
  box-shadow:
    0 0 1em .25em var(--glow-color),
    0 0 4em 2em var(--glow-spread-color),
    inset 0 0 .75em .25em var(--glow-color);
}

/* SIDEBAR */
.sidebar {
  --glow-color: var(--accent);
  text-shadow: 0 0 .5em var(--glow-color);
  text-align: center;
  margin-top: 60px;
  width: 300px;
  height: 100vh;
  padding:  10px;
  background-color: #111;
  color: var(--text);
  box-sizing: border-box;
}

.sidebar h2,
.sidebar h3,
.sidebar h4 {
  font-size: 28px;
  margin-bottom: 20px;
}

.sidebar a {
  --glow-color: var(--accent);
  --glow-spread-color: var(--glow-spread);
  --enhanced-glow-color: var(--accent);
  --btn-color: var(--btn-color);

  display: block;
  margin-bottom: 20px;
  margin-left: 50px;
  padding: 15px;
  left: -30px;
  font-size: 17px;
  font-weight: bold;
  text-align: center;
  color: var(--glow-color);
  background-color: var(--btn-color);
  border: .25em solid var(--glow-color);
  border-radius: 1em;
  outline: none;
  text-shadow: 0 0 .5em var(--glow-color);
  box-shadow:
    0 0 1em .25em var(--glow-color),
    0 0 4em 1em var(--glow-spread-color),
    inset 0 0 .75em .25em var(--glow-color);
  position: relative;
  transition: all 0.3s;
}

.sidebar a:hover {
  background-color: rgb(231, 206, 255);
}

.content {
  margin-top: 60px; /* déjà présent */
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  height: 110%;
  width: 82%;
}


.main-content h1 {
  font-size: 3.5em;
  margin-bottom: 50px;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent);
}

.main-content p {
  font-size: 2em;
  line-height: 1.6;
  color: var(--text);
  max-width: 1200px;
  margin: 0 auto 20px auto;
  text-shadow: 0 0 10px var(--accent);
}

.main-content a {
  font-size: 1em;
  line-height: 1.6;
  color: #fa0000;
  max-width: 1200px;
  margin: 0 auto 20px auto;
  text-shadow: 0 0 10px #ff0000;
}

.main-content b {
  font-size: 1em;
  line-height: 1.6;
  color: var(--accent);
  max-width: 1200px;
  margin: 0 auto 20px auto;
  text-shadow: 0 0 10px var(--accent);
}

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background-color: #1b1b1b;
  color: #a58eff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 0 10px #a58eff;
  box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.4);
  z-index: 999;
}

/* BUTTON */
button {
  --glow-color: var(--accent);
  --glow-spread-color: var(--glow-spread);
  --enhanced-glow-color: var(--accent);
  --btn-color: var(--btn-color);

  position: relative;
  top: 4%;
  padding: 0.4rem 0.6rem;
  font-size: 15px;
  font-weight: bold;
  color: var(--glow-color);
  background-color: var(--btn-color);
  border: .25em solid var(--glow-color);
  border-radius: 1em;
  outline: none;
  text-shadow: 0 0 .5em var(--glow-color);
  box-shadow:
    0 0 1em .25em var(--glow-color),
    0 0 4em 1em var(--glow-spread-color),
    inset 0 0 .75em .25em var(--glow-color);
  transition: all 0.3s;
}

button::after {
  pointer-events: none;
  content: "";
  position: absolute;
  top: 120%;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: var(--glow-spread-color);
  filter: blur(2em);
  opacity: 0.7;
  transform: perspective(1.5em) rotateX(35deg) scale(1, 0.6);
}

button:hover {
  color: var(--btn-color);
  background-color: var(--glow-color);
  box-shadow:
    0 0 1em .25em var(--glow-color),
    0 0 4em 2em var(--glow-spread-color),
    inset 0 0 .75em .25em var(--glow-color);
}

button:active {
  box-shadow:
    0 0 0.6em .25em var(--glow-color),
    0 0 2.5em 2em var(--glow-spread-color),
    inset 0 0 .5em .25em var(--glow-color);
}

/* STARS */
.star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgb(100, 61, 136);
  border-radius: 50%;
  box-shadow: 0 0 6px 2px rgba(191, 123, 255, 0.1);
  opacity: 0;
  animation: twinkle 2s infinite ease-in-out;
}

@keyframes twinkle {
  0%, 100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.4);
  }
}

/* STARS CONTAINER */
#stars-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* RESPONSIVE CARDS */
@media (max-width: 1024px) {
  .card {
    max-width: 45%;
  }
}

@media (max-width: 600px) {
  .card {
    max-width: 90%;
  }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  body {
    flex-direction: column;
    height: auto;
    overflow-x: hidden;
  }

  .sidebar {
    display: none;
  }

  .top-bar {
    height: 50px;
    font-size: 18px;
    padding: 0 8px;
  }

  .wishlist-btn {
    display: none;
  }

  .content {
    margin-top: 50px;
    padding: 16px;
  }

  .main-content {
    width: 100%;
    height: auto;
    padding: 60px 12px 50px 12px;
    margin-top: 0;
  }

  .main-content h1 {
    font-size: 1.6em;
    margin-bottom: 16px;
    line-height: 1.3;
  }

  .main-content p,
  .main-content a,
  .main-content b {
    font-size: 0.95em;
    line-height: 1.5;
    margin-bottom: 12px;
  }

  .footer {
    height: 50px;
    font-size: 12px;
  }

  button {
    top: 0;
    font-size: 14px;
    padding: 0.5rem 0.8rem;
  }
}

@media (max-width: 480px) {
  .top-bar { font-size: 18px; }
  .main-content h1 { font-size: 1.8em; }
}

/* Tablet layout */
@media (min-width: 600px) and (max-width: 1024px) {
  .top-bar { height: 56px; font-size: 24px; }
  .wishlist-btn { top: 10px; right: 16px; font-size: 14px; padding: 7px 12px; }
  .sidebar { display: none; }
  .content { padding: 18px; }
  .main-content { width: 100%; padding: 0 16px; }
  .main-content h1 { font-size: 2.6em; }
  .main-content p,
  .main-content a,
  .main-content b { font-size: 1.2em; }
  .footer { height: 52px; font-size: 13px; }
}