:root {
  --color-background: #0a0a0f;
  --color-text: #e8e6f0;
  --color-accent: #bf5af2;
  --color-primary: #5e5ce6;
  --color-sub: #1a1a2e;
  --color-secondary: #12121c;
  --font-family: Arial, Helvetica, sans-serif;
}

* {
  margin: 0;
}

.navigation-bar {
  display: flex;
  align-items: center;
  padding: 1.5em 4em;
}

#logo {
  border: none;
  background-color: transparent;
  font-family: "Anton", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 1.5rem;
  color: var(--color-text);
  padding: 0;
  cursor: pointer;
}

#nav-container {
  flex-grow: 1;
}

.tabs {
  display: flex;
  justify-content: end;
  gap: 2.5em;
  align-items: center;
}

.tab {
  list-style: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #9a95b0;
  font-style: normal;
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding-bottom: 4px;
}

.tab::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.tab:not(#active):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.tab:not(:hover)::after {
  transform: scaleX(0);
  transform-origin: right;
}

.tab:hover {
  color: var(--color-accent);
}

#active {
  color: var(--color-accent);
  border-bottom: 2px var(--color-accent) solid;
}

body {
  background-color: var(--color-background);
}

.main-container {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 15vh 10vh 10vh 10vh;
}

.cards {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--color-text);
  padding: 0 4em;
}

.main-content .greeting {
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-accent);
  font-weight: bold;
  margin-bottom: 0.5em;
}

.main-content h1 {
  font-family: "Anton", sans-serif;
  font-size: 5rem;
  line-height: 1;
  margin-bottom: 0.3em;
}

.main-content h2 {
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.4;
  margin-bottom: 1em;
  color: #c0bcd0;
}

.accent {
  color: var(--color-accent);
}

.main-content p {
  font-size: 1.2rem;
  line-height: 1.7;
  color: #9a95b0;
}

.cards {
  position: relative;
}

#main-card {
  width: 50vh;
  position: relative;
  z-index: 3;
  border-radius: 8px;
  overflow: hidden;
}

#main-card img {
  width: 100%;
  display: block;
}

#second-card {
  background-color: var(--color-accent);
  width: 50vh;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  transform: translate(-50%, -50%) rotate(4deg);
  border-radius: 8px;
}

#third-card {
  background-color: var(--color-primary);
  width: 50vh;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  transform: translate(-50%, -50%) rotate(8deg);
  border-radius: 8px;
}

#icon-container {
  display: flex;
  gap: 1.2em;
  margin-top: 2.5em;
}

.icon {
  height: 28px;
  opacity: 0.7;
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  cursor: pointer;
}

.icon:hover {
  opacity: 1;
  transform: scale(1.15);
}

.icon img {
  height: 100%;
  width: auto;
}

/* Hamburger button — hidden on desktop */
#hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 100;
}

#hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}

#hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

#hamburger.open span:nth-child(2) {
  opacity: 0;
}

#hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Tablet & small laptops ---- */
@media (max-width: 900px) {
  .main-container {
    flex-direction: column-reverse;
    padding: 6vh 5vw;
    gap: 3em;
  }

  .main-content {
    padding: 0;
    align-items: center;
    text-align: center;
  }

  #icon-container {
    justify-content: center;
  }

  .main-content h1 {
    font-size: 3.5rem;
  }

  .main-content h2 {
    font-size: 1.3rem;
  }

  #main-card,
  #second-card,
  #third-card {
    width: 40vh;
  }
}

/* ---- Mobile ---- */
@media (max-width: 600px) {
  .navigation-bar {
    padding: 1.2em 1.5em;
  }

  #hamburger {
    display: flex;
    margin-left: auto;
  }

  #nav-container {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-secondary);
    padding: 1.5em 0;
    z-index: 99;
  }

  #nav-container.show {
    display: block;
  }

  .navigation-bar {
    position: relative;
    flex-wrap: wrap;
  }

  .tabs {
    flex-direction: column;
    align-items: center;
    gap: 1.5em;
  }

  .main-container {
    padding: 4vh 1.5em 6vh;
    gap: 3em;
  }

  .main-content {
    gap: 0.3em;
    padding: 0 1em;
  }

  .main-content .greeting {
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 0.3em;
  }

  .main-content h1 {
    font-size: 2.5rem;
    margin-bottom: 0.4em;
  }

  .main-content h2 {
    font-size: 1.05rem;
    line-height: 1.5;
    margin-bottom: 0.8em;
  }

  .main-content p {
    font-size: 0.95rem;
    line-height: 1.8;
  }

  #icon-container {
    margin-top: 1.8em;
  }

  #main-card,
  #second-card,
  #third-card {
    width: 70vw;
    max-width: 300px;
  }
}