:root {
    --lila: #6f2da8;
    --gris: #707070;
    --naranja: #ff6a00;
    --negro: #111;
    --bg: #fff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: Arial, sans-serif; background: var(--bg); color: var(--negro); }
h2 { font-size: 2.2rem; margin-bottom: 20px; text-align: center; }
.topbar {
    position: fixed; top: 0; left: 0; right: 0;
    height: 64px; background: rgba(255,255,255,.8);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px; z-index: 100; backdrop-filter: blur(6px);
}
.brand { font-weight: bold; letter-spacing: 2px; }
.nav { display: flex; gap: 18px; }
.nav a { text-decoration: none; color: var(--negro); font-size: 1rem; }
.burger { display: none; font-size: 28px; background: none; border: none; }

/* Intro */
.intro { display: flex; align-items: center; justify-content: center; height: 100vh; flex-direction: column; text-align: center; padding-top: 64px; }
.logo-container { position: relative; display: inline-block; }
.logo { max-height: 80vh; width: auto; opacity: 0.9; }
#animated-text {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 176px; font-weight: bold; color: yellow;
    animation: fontChange 4s infinite; white-space: nowrap;
}
.tagline { font-size: 1.2rem; color: red; margin-top: 20px; }
.enter-link {
    display: inline-block; margin-top: 30px; font-size: 1.5rem; text-decoration: none;
    color: var(--negro); font-weight: bold; border: 2px solid var(--negro);
    padding: 10px 20px; border-radius: 30px; transition: background .3s, color .3s;
}
.enter-link:hover { background: var(--naranja); color: #fff; }

/* About */
.about { padding: 80px 20px; max-width: 900px; margin: 0 auto; text-align: center; line-height: 1.6; }

/* Services */
.services { padding: 80px 20px; background: #f8f8f8; }
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.service-card {
    background: #fff; border-radius: 12px; box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    padding: 20px; display: flex; flex-direction: column; align-items: center; text-align: center;
}
.service-video { width: 100%; border-radius: 12px; margin-bottom: 15px; }

/* Contact */
.contact { padding: 80px 20px; text-align: center; line-height: 1.6; }

/* Font animation */
@keyframes fontChange {
    0% { font-family: Impact, sans-serif; }
    12% { font-family: Arial Black, sans-serif; }
    24% { font-family: Georgia, serif; }
    36% { font-family: 'Courier New', monospace; }
    48% { font-family: 'Trebuchet MS', sans-serif; }
    60% { font-family: Verdana, sans-serif; }
    72% { font-family: 'Times New Roman', serif; }
    84% { font-family: Tahoma, sans-serif; }
    100% { font-family: Impact, sans-serif; }
}

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; flex-direction: column; background: #fff; position: absolute; top:64px; right:0; width: 200px; border:1px solid #ccc; padding: 10px; }
    .nav.show { display: flex; }
    .burger { display: block; }
    #animated-text { font-size: 72px; }
    .logo { max-height: 50vh; }
}