@import url('https://fonts.googleapis.com/css?family=Montserrat:600&display=swap');

:root {
  --font-main: 'Montserrat', sans-serif;
  --white: #fff;
  --text-main: #0f1735;
  --text-muted: #3f4a6a;
  --card-width: 435px;
  --card-height: 600px;
  --card-radius: 10px;
  --icon-size: 40px;
  --icon-color: #042f4b;
  --bg-dark-start: #0A0E1E;
  --bg-dark-end: #2C44C2;
  --page-bg-start: #edf3ff;
  --page-bg-end: #dbe8ff;
  --intro-bg: rgba(255, 255, 255, 0.8);
  --overlay: rgba(0, 0, 0, 0.2);
  --perspective: 1000px;
  --flip-transition: 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

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

body {
  min-height: 100vh;
  font-family: var(--font-main);
  background: linear-gradient(135deg, var(--page-bg-start) 0%, var(--page-bg-end) 100%);
}

.page-layout {
  min-height: 100vh;
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 36px;
  display: grid;
  grid-template-columns: var(--card-width) minmax(320px, 1fr);
  gap: 56px;
  align-items: center;
  justify-content: center;
}

.card-zone {
  display: flex;
  justify-content: center;
}

.center {
  position: relative;
  width: var(--card-width);
  height: var(--card-height);
  perspective: var(--perspective);
  transform-style: preserve-3d;
}

.front-face,
.back-face {
  position: absolute;
  width: 100%;
  height: 100%;
  text-align: center;
  border-radius: var(--card-radius);
  backface-visibility: hidden;
  transform-style: preserve-3d;
  transition: transform var(--flip-transition);
  background:
    linear-gradient(var(--overlay), var(--overlay)),
    url(florent_wink.gif);
  background-size: cover;
  background-position: center;
}

.contents {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  perspective: var(--perspective);
  transform: translateY(-50%) translateZ(60px) scale(0.94);
}

.back-face {
  transform: rotateY(180deg);
  background: linear-gradient(45deg, var(--bg-dark-start) 0%, var(--bg-dark-end) 100%);
}

.back {
  color: var(--white);
}

.back span {
  font-size: 25px;
}

.icons {
  margin: 10px 0;
}

.icons a {
  display: inline-flex;
  text-decoration: none;
}

.icons i {
  display: inline-grid;
  place-items: center;
  width: var(--icon-size);
  height: var(--icon-size);
  margin: 0 5px;
  font-size: 20px;
  border-radius: 50%;
  cursor: pointer;
}

.back .icons i {
  color: var(--icon-color);
  background: var(--white);
}

.intro-zone .icons i {
  color: var(--white);
  background: var(--icon-color);
  margin: 0 5px;
}

.center:hover > .back-face {
  transform: rotateY(0deg);
}

.center:hover > .front-face {
  transform: rotateY(-180deg);
}

.intro-zone {
  width: 100%;
  max-width: 560px;
  padding: 34px;
  border-radius: 18px;
  background: var(--intro-bg);
  box-shadow: 0 12px 30px rgba(31, 56, 130, 0.12);
}

.intro-zone h1 {
  margin-bottom: 14px;
  font-size: clamp(34px, 5vw, 52px);
  color: var(--text-main);
}

.intro-zone p {
  margin-top: 12px;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  color: var(--text-muted);
}

.intro-zone .icons {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 10px;
}

@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr;
    gap: 28px;
    justify-items: center;
    padding: 28px 20px 40px;
  }

  .intro-zone {
    width: min(680px, 100%);
    padding: 26px;
  }
}

@media (max-width: 520px) {
  :root {
    --card-width: 320px;
    --card-height: 442px;
  }

  .page-layout {
    padding-top: 20px;
  }
}