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

/* BODY + FONTS */
body {
  font-family: 'Inter', sans-serif;
  background: #0a0612;
  color: #ffffff;
  overflow-x: hidden;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 3rem 1.5rem;
  text-align: center;
}

/* HEADINGS */
h1, h2, h3 {
  font-weight: 700;
}

h1.glow {
  font-size: 3.5rem;
  color: #fff;
  text-shadow: 0 0 10px #7b2cbf, 0 0 20px #4cc9f0, 0 0 30px #f72585;
}

/* TAGLINE FIXED */
.tagline {
  font-size: 1.2rem;
  color: #ccc;
  margin-top: 1rem;
  margin-bottom: 2rem; /* 👈 Ajouté pour l'espacement */
}

/* BUTTONS */
.btn {
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, #7209b7, #480ca8);
  color: #fff;
  border: none;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(114, 9, 183, 0.4);
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(200, 100, 255, 0.6);
}

.btn.pulse {
  animation: pulseBtn 2s infinite;
}

/* HEADER */
header {
  background: linear-gradient(135deg, #3a0ca3, #0a0612);
  padding: 5rem 0 3rem;
}

/* FEATURES */
.features {
  background: linear-gradient(135deg, #1a082c, #0a0612);
  padding: 4rem 0;
}

.feature-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background: #1f103f;
  padding: 1.5rem;
  border-radius: 15px;
  box-shadow: 0 0 15px rgba(122, 75, 255, 0.1);
  flex: 1 1 250px;
  max-width: 300px;
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px) scale(1.03);
}

/* UTILITY SECTION */
.utility-section {
  background: #0f0820;
  padding: 4rem 0;
}

.tweak-wrapper {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.glow-wrapper {
  background: linear-gradient(135deg, #f72585, #4cc9f0, #7209b7);
  padding: 10px;
  border-radius: 20px;
  background-size: 400% 400%;
  animation: glowLoop 5s ease infinite;
  max-width: 600px;
}

.tilt-image {
  width: 100%;
  display: block;
  border-radius: 15px;
  transition: transform 0.3s ease;
  box-shadow: 0 0 40px rgba(255, 255, 255, 0.08);
}

/* ABOUT */
.about {
  background: linear-gradient(135deg, #2a0c4e, #120218);
  padding: 4rem 0;
}

.desc {
  max-width: 700px;
  margin: 1rem auto;
  font-size: 1.1rem;
  color: #bbbbbb;
  line-height: 1.6;
}

/* FOOTER */
footer {
  background: #0a0612;
  padding: 2rem 0;
  font-size: 0.9rem;
  color: #888;
}

/* ANIMATIONS */
@keyframes glowLoop {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes pulseBtn {
  0% { box-shadow: 0 0 0 0 rgba(114, 9, 183, 0.5); }
  70% { box-shadow: 0 0 0 12px rgba(114, 9, 183, 0); }
  100% { box-shadow: 0 0 0 0 rgba(114, 9, 183, 0); }
}

.fade-up {
  animation: fadeUp 1.5s ease both;
}

.fade-up-delay {
  animation: fadeUp 2s ease both;
}

.fade-slide {
  animation: fadeSlide 1.5s ease both;
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(40px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlide {
  0% { opacity: 0; transform: translateX(-40px); }
  100% { opacity: 1; transform: translateX(0); }
}