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

/* Immagini sempre responsive */
img {
  max-width: 100%;
}

/* Font generale e testi */
body {
  font-family: Arial, Helvetica, sans-serif;
}
p {
  font-size: 1rem;
}
ul {
  list-style: none;
}
a {
  display: inline-block;
  color: blue;
}
main h2 {
  font-size: 2.5rem;
}
main h3 {
  font-size: 1.8rem;
}
h4 {
  font-size: 1.2rem;
}

main li,
footer li {
  font-size: 0.9rem;
}
/* Stile generico per pulsanti */
.btn {
  background-color: rgba(0, 97, 253);
  color: white;
  padding: 10px 20px;
  text-decoration: none;
}

/* =======================
   CONTAINER
   ======================= */
.container-small {
  max-width: 900px;
  margin: 0 auto;
}

.container-large {
  max-width: 1000px;
  margin: 0 auto;
}
.text-align {
  text-align: center;
}
.btn-main-footer {
  background-color: white;
  color: black;
}

/* =======================
   UTILITIES (classi riutilizzabili)
   ======================= */

/* Gestione flexbox */
.flex {
  display: flex;
}
.jc-between {
  justify-content: space-between;
}
.jc-center {
  justify-content: center;
}
.align-center {
  align-items: center;
}
.wrap {
  flex-wrap: wrap;
}

/* Spaziatura tra elementi */
.gap-10 {
  gap: 10px;
}

.gap-40 {
  gap: 40px;
}

/* Padding utili */
.pd-10 {
  padding: 10px;
}
.pd-20 {
  padding: 20px;
}
.pd-30 {
  padding: 30px;
}
.pd-50 {
  padding: 50px;
}
.pd-70 {
  padding: 70px;
}
.pd-90 {
  padding: 90px;
}

.pd-150 {
  padding: 150px;
}
.pd-20-top {
  padding-top: 20px;
}
.pd-top-90 {
  padding-top: 90px;
}
.pd-top-150 {
  padding-top: 150px;
}
.pd-bottom-20 {
  padding-bottom: 20px;
}
.pd-bottom-50 {
  padding-bottom: 50px;
}

/* Margin utili */
.mg-20 {
  margin: 20px;
}
.mg-top-10 {
  margin-top: 10px;
}
.mg-top-20 {
  margin-top: 20px;
}
.mg-top-30 {
  margin-top: 30px;
}
.mg-top-50 {
  margin-top: 50px;
}
.mg-bottom-20 {
  margin-bottom: 20px;
}
.mg-5-right {
  margin-right: 5px;
}
.mg-10-right {
  margin-right: 10px;
}
.mg-10-left {
  margin-left: 10px;
}

.mg-30-left {
  margin-left: 30px;
}

/* Colori e background di utilità */
.bg-sky-blue {
  background-color: rgba(180, 208, 230);
}
.bg-green {
  background-color: rgba(162, 211, 155);
}
.bg-aquamarine {
  background-color: rgba(0, 147, 206);
}
.bg-red {
  background-color: rgba(255, 28, 28);
}
.bg-blue {
  background-color: rgba(13, 36, 129);
}
.bg-yellow {
  background-color: rgba(255, 216, 48);
}

.bg-brown {
  background-color: rgba(97, 8, 43);
}
.cl-blue {
  color: blue;
}

.cl-gray {
  color: gray;
}

/* =======================
   HEADER
   ======================= */
header {
  width: 100%;
  height: 80px;
  background-color: white;
  position: fixed;
  z-index: 999;
}

/* Link nell’header senza sottolineatura */
header a {
  text-decoration: none;
  color: inherit;
}

header a:hover {
  border-bottom: 1px solid black;
}

/* Pulsanti nell’header */
header .btn {
  padding: 5px 10px;
}

/* =======================
   MAIN SECTIONS
   ======================= */

/* HERO section */
.title-hero {
  font-size: 2.3rem;
  padding-left: 30px;
}
.hero-footer {
  position: relative;
}
.description-hero {
  width: 40%;
  padding-top: 60px;
  padding-left: 30px;
  padding-right: 10px;
  padding-bottom: 10px;
}
.arrow {
  font-size: 2.5rem;
}
.img-hero {
  width: 60%;
  position: absolute;
  right: 0;
  top: 60px;
}

/* SUBSCRIPTION section */

.title-subscriotion input[type="radio"] {
  display: inline-block;
  width: 20px;
  height: 20px;
}

/* Business cards (piani / box) */
.col-business {
  width: 30%;
  border: 1px solid rgba(235, 235, 237);
}

.single {
  text-align: center;
  border-bottom: 1px solid rgba(235, 235, 237);
}
.month {
  color: gray;
}

.btn-business {
  width: 100%;
  text-align: center;
}
.separation-main {
  border: 1px solid rgba(235, 235, 237);
  width: 25%;
}
.enterprise {
  border: 1px solid rgba(235, 235, 237);
}

.solutions {
  width: 65%;
}

/* PARTNER section */
.img-partner {
  width: 50%;
}

.text-partner {
  width: 50%;
}

.text-partner .btn {
  background-color: white;
  color: rgba(0, 0, 0, 0.915);
  border: 1px solid rgba(0, 0, 0, 0.915);
}

/* OPERATIONS section */

.cl-30 {
  width: 30%;
}

.team {
  width: 70%;
}
.col-30-main-footer {
  width: calc(100% / 3);
}
.col-square {
  width: 50%;
  padding: 90px 50px;
}
.main-footer img {
  height: 100px;
}
.main-footer .img-university {
  height: 20px;
}
.logo-white {
  filter: brightness(0) invert(1);
}

.cl-50 {
  width: 50%;
}
.btn-main-footer {
  text-align: center;
}
/* =======================
   FOOTER
   ======================= */
footer {
  background-color: black;
  color: white;
}
.cl-20 {
  width: 20%;
}
.separator-footer {
  border: 1px solid rgba(128, 128, 128, 0.448);
  margin-top: 30px;
  width: 15%;
}