/* Colors */
:root {
  --blue: #29b6f6;
  --green: #9ccc65;
  --purple: #ba68c8;
  --yellow: #fdd835;
  --orange: #f57c00;
  --red: #ef5350;
  --cyan: #4dd0e1;
  --pink: #e91e63;
  --black-dark: #101010;
  --black-light: #2c3e50;
  --bg1: #e91e63; /* Kept for reference, not used */
  --bg2: #9c27b0; /* Kept for reference, not used */
  --white: whitesmoke;
  --main-bg: linear-gradient(to right, #111111, #5c1d4e, #792c78, #df0e9a);
  --secondary-bg: linear-gradient(
    135deg,
    var(--main-dark-color) 0%,
    var(--main-dark-color-secondary) 100%
  );
  --main-bg-opacity: linear-gradient(
    to right,
    rgba(17, 17, 17, 0.9),
    rgba(92, 29, 78, 0.9),
    rgba(121, 44, 120, 0.9),
    rgba(223, 14, 154, 0.9)
  );
  --secondary-bg-opacity: linear-gradient(
    135deg,
    rgba(17, 17, 17, 0.9) 0%,
    rgba(92, 29, 78, 0.9) 100%
  );

  --main-dark-color: #111111;
  --main-dark-color-secondary: #5c1d4e;
  --main-light-color: #df0e9a;
  --main-white: #f8f9fa;
  --main-gray: #888;
}

/* General styles */
*,
*:before,
*:after {
  box-sizing: border-box;
  outline: none;
}

body {
  position: relative;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  width: 100%;
  min-height: 100vh;
  background: var(--main-bg); /* Updated to use --main-bg */
}

.tworcy-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  padding-bottom: 5rem;
  min-height: calc(100vh - 80px);
}

.back-button {
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 18px;
  color: var(--white);
  text-decoration: none;
  padding: 10px 15px;
  border-radius: 5px;
  background-color: rgba(0, 0, 0, 0.3);
  transition: background-color 0.3s ease;
}

.back-button:hover {
  background-color: rgba(0, 0, 0, 0.5);
}

.header {
  text-align: center;
  margin-bottom: 50px;
}

.header h1 {
  font-size: 3rem;
  margin-bottom: 10px;
  color: var(--main-white);
}

.header p {
  font-size: 1.2rem;
  opacity: 0.8;
}

.card-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 64rem;
  width: 100%;
  justify-items: center;
  align-items: center;
}

code {
  font-family: "Lucida Console", Monaco, monospace;
  font-size: 14px;
}

/* Card styles */
.card {
  position: relative;
  width: 30rem;
  height: 15rem;
  perspective: 150rem;
  background: transparent;
  border: none;
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: auto;
  border-radius: 5px;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.4);
  transition: transform 0.9s cubic-bezier(0.25, 0.8, 0.25, 1);
  backface-visibility: hidden;
  overflow: hidden;
}

.card-front::before,
.card-front::after,
.card-back::before,
.card-back::after {
  position: absolute;
}

.card-front::before,
.card-back::before {
  top: -40px;
  right: -40px;
  content: "";
  width: 80px;
  height: 80px;
  background-color: rgba(255, 255, 255, 0.08);
  transform: rotate(45deg);
  z-index: 1;
}

.card-front::after,
.card-back::after {
  content: "+";
  top: 0;
  right: 10px;
  font-size: 24px;
  transform: rotate(45deg);
  z-index: 2;
}

.card-front {
  background: linear-gradient(45deg, var(--black-dark), var(--black-light));
}

.card-front::after {
  color: #263647;
}

.card-back {
  background: linear-gradient(-45deg, var(--black-dark), var(--black-light));
  transform: rotateX(180deg);
}

.card-back::after {
  color: #1f2e3e;
}

.card:hover .card-front {
  transform: rotateX(-180deg);
}

.card:hover .card-back {
  transform: rotateX(0deg);
}

.line-numbers {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  margin: 0;
  padding: 0 10px;
  background-color: rgba(255, 255, 255, 0.03);
  font-size: 13px;
  font-family: "Lucida Console", Monaco, monospace;
  color: white;
}

.line-numbers div {
  padding: 2.5px 0;
  opacity: 0.15;
}

code {
  color: var(--white);
}

.indent {
  padding-left: 30px;
}

.operator {
  color: var(--cyan);
}

.string {
  color: var(--green);
}

.variable {
  color: var(--purple);
}

.property {
  color: var(--red);
}

.method {
  color: var(--blue);
}

.function {
  color: var(--yellow);
}

.boolean {
  color: var(--cyan);
}

/* Media query for mobile devices */
@media (max-width: 768px) {
  .card-container {
    grid-template-columns: 1fr;
    gap: 15px;
    max-width: 100%;
    padding: 0 10px;
  }

  .card {
    width: 100%;
    max-width: 100%;
    height: 12rem;
  }

  .tworcy-container {
    padding: 15px 10px;
    padding-bottom: 3rem;
  }

  .header h1 {
    font-size: 2.5rem;
  }

  code {
    font-size: 12px;
  }

  .line-numbers {
    padding: 0 8px;
  }

  .line-numbers div {
    padding: 2px 0;
  }
}

/* Additional breakpoint for very small screens */
@media (max-width: 480px) {
  .card {
    height: 10rem;
  }

  .header h1 {
    font-size: 2rem;
  }

  code {
    font-size: 11px;
  }

  .indent {
    padding-left: 20px;
  }
}