@font-face {
  font-family: "centary";
  src: url(../fonts/GOTHIC.TTF);
}

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
*::selection {
}
:root {
}
ul,
li {
}
a {
}
body,
html {
}

body {
}
button,
textarea,
input {
}
h1,
h2,
h3,
h4,
h5,
h6 {
}
.header {
  /* background-color: red; */
  text-align: center;
  height: 130px;
  line-height: 150px;
  font-size: 30px;
  letter-spacing: 5px;
}
/* ALL ICONS */

/* footer */
.footer {
  height: 60px;
  display: flex;
  text-align: center;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  gap: 35px;
}
.footer > div {
  will-change: transform;
  transform: translateZ(0);
  -webkit-font-smoothing: antialiased; /* برای متن */
  transition:
    transform 1s,
    opacity 1s;
}
.footer:hover > div {
  opacity: 0.4;
}
.footer > :first-child:hover {
  transform: scale(1.1);
  opacity: 1;
}
.footer > :nth-child(2):hover {
  transform: scale(1.1);
  opacity: 1;
}
.footer > :last-child:hover {
  transform: scale(1.1);
  opacity: 1;
}

/* ******************************************************** */

.page-side-line {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 1px;
  z-index: 1;
  pointer-events: none;

  background: linear-gradient(
    to bottom,
    transparent,
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.05),
    transparent
  );
}

.page-side-line.left {
  left: 12%;
}

.page-side-line.right {
  right: 12%;
}

.project-card {
  margin: 0 auto 70px auto;
  margin-inline: 25%;
  padding: 42px;

  border-radius: 26px;
  position: relative;
  overflow: hidden;
  z-index: 10;
  /* glass base */

  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.25),
    rgba(255, 255, 255, 0.08)
  );

  backdrop-filter: blur(50px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);

  border: 5px solid rgba(255, 255, 255, 0.35);

  /* depth */

  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.25),
    inset 0 1px 1px rgba(255, 255, 255, 0.6),
    inset 0 -2px 6px rgba(255, 255, 255, 0.15);

  transition:
    transform 0.5s cubic-bezier(0.19, 1, 0.22, 1),
    box-shadow 0.5s,
    background 0.4s;
}

/* liquid highlight */

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 26px;
  z-index: -1;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  background: rgba(255, 255, 255, 0.05);

  pointer-events: none;
}

/* glass shine */

.project-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -120%;
  left: -40%;

  width: 160%;
  height: 300%;

  background: linear-gradient(
    120deg,
    transparent,
    rgba(255, 255, 255, 0.35),
    transparent
  );

  transform: rotate(25deg);

  transition: 0.8s;
  opacity: 0;
}

/* hover liquid animation */

.project-card:hover {
  transform: translateY(-12px) scale(1.02);

  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.35),
    rgba(255, 255, 255, 0.12)
  );

  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.35),
    inset 0 2px 2px rgba(255, 255, 255, 0.8),
    inset 0 -3px 8px rgba(255, 255, 255, 0.25);
}
.project-card:hover::after {
  top: -40%;
  opacity: 0.6;
}

/* layout */

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

.card-left {
  width: 60%;
}

.card-left h1 {
  margin-bottom: 12px;
  font-size: 28px;
  color: var(--title);
}

.card-left p {
  line-height: 1.7;
  opacity: 0.85;
}

/* image */

.card-right {
  width: 50%;
  overflow: hidden;
  border-radius: 16px;
}

.card-right img {
  width: 100%;
  display: block;
  transition: transform 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.project-card:hover .card-right img {
  transform: scale(1.08);
}

/* button */

.card-btn {
  margin-top: 30px;
  border: none;
  background: none;

  color: var(--read);

  font-weight: 600;
  letter-spacing: 1px;

  cursor: pointer;

  display: inline-flex;
  align-items: center;
  gap: 10px;

  position: relative;
}

.card-btn::after {
  content: "";
  position: absolute;

  bottom: -4px;
  left: 0;

  width: 0;
  height: 2px;

  background: var(--read);

  transition: 0.35s;
}

.card-btn:hover::after {
  width: 100%;
}

.arrow {
  transition: 0.3s;
}

.card-btn:hover .arrow {
  transform: translateX(6px);
}

/* project content */

.project-content {
  width: 100%;
  height: 0;
  overflow: hidden;

  opacity: 0;
  transform: translateY(-10px);

  transition:
    height 0.7s cubic-bezier(0.77, 0, 0.18, 1),
    opacity 0.4s ease,
    transform 0.4s ease;
}

.project-card.open .project-content {
  opacity: 1;
  transform: translateY(0);
  margin-top: 40px;
}

/* ******************************************************** */