:root {
  /*  Colors   */
  --white-color: #fff;
  --black-color: #1c1c1c;
  --primary-color: #f6f6f6;
  --secondary-color: #eee;
  --tertiary-color: #e8e8e8;
  --gray-color: gray;
  --soft-gray-color: rgba(128, 128, 128, 0.623);
  --light-pink-color: #faf4f5;
  --medium-gray-color: #ccc;

  /* Font size */
  --font-size-xs: 0.8rem;
  --font-size-s: 0.9rem;
  --font-size-n: 1rem;
  --font-size-m: 1.12rem;
  --font-size-l: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-xxl: 2.3rem;
  --font-size-giant: 13rem;

  /* Font weight*/
  --font-weight-small: 100;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Border radius*/

  --border-radius-s: 8px;
  --border-radius-m: 30px;
  --border-radius-circle: 50%;

  /* Site Max Width */

  --site-max-width: 1300px;
}

.design-section {
  background-color: var(--secondary-color);
  padding: 80px 0;
}

.design-section .container {
  width: 80%;
  margin: 30px auto;
}

.design-intro {
  display: flex;
  justify-content: space-between;
  margin-bottom: 80px;
}

.design-intro .title::before {
  content: "";
  top: -20px;
  width: 0;
  height: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px;
  border-color: var(--black-color) transparent transparent transparent;

  position: absolute;
}

.design-intro .title {
  position: relative;
  flex: 3;
}

.design-intro .description {
  position: relative;
  flex: 2;
}

.design-intro h2 {
  max-width: 350px;
  font-size: var(--font-size-xxl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 15px;
}

.design-intro .description {
  padding-left: 40px;
  border-left: 2px solid var(--medium-gray-color);
}

.design-intro .description .expandable-text {
  max-width: 90%;
  max-height: 110px;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.description.expanded .expandable-text {
  max-height: 500px;
}

.design-intro .description .expandable-text p {
  padding-bottom: 10px;
  text-indent: 10px;
  line-height: 1.6;
  font-size: var(--font-size-n);
  color: var(--gray-color);
}

.design-intro .description span {
  cursor: pointer;
}

.design-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.design-grid > .grid-box:last-child {
  grid-column: 3;
}

.design-grid .grid-box h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
}

.design-grid .grid-box p {
  line-height: 1.7;
  padding: 5px 0;
}

.design-grid .grid-box {
  padding: 35px;
}

.design-grid .grid-box .buttons {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  gap: 20px;
}

.design-grid .grid-box .buttons button {
  background-color: var(--tertiary-color);
  padding: 10px 15px;
  border-radius: 35px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.design-grid.last-grid .buttons button {
  background-color: var(--black-color);
  color: var(--white-color);
}

.design-grid .grid-box .buttons button:hover,
.gallery-grid .grid-box button:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 45px rgba(0, 0, 0, 0.07);
}

.gallery-grid {
  display: grid;
  grid-template-columns: auto 4fr 1fr;
  gap: 5px;
  border-bottom: 2px solid var(--medium-gray-color);
  padding-bottom: 15px;
}

.gallery-grid .grid-box .gallery-container {
  display: flex;
  flex-direction: row;
  gap: 15px;
}
.gallery-grid .grid-box .gallery-container img {
  width: 180px;
  height: auto;
  display: block;
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.gallery-grid .grid-box .gallery-container img:hover {
  transform: scale(1.05) rotate(-1deg);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.gallery-grid .grid-box p {
  height: auto;
  padding-left: 20px;
  line-height: 1.6;
}

.gallery-grid .grid-box button {
  background-color: var(--black-color);
  color: var(--white-color);
  width: 60px;
  height: 60px;
  display: block;
  margin: 0 auto;
  border-radius: 50%;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  cursor: pointer;
}

.card-container {
  background: linear-gradient(135deg, #111, #333);
  color: #fff;
  padding: 60px 40px;
  border-radius: 10px;
  text-align: center;
  margin-top: 60px;
}

.card-container h4 {
  font-size: clamp(1.5rem, 3vw, 3rem);
  font-weight: var(--font-weight-bold);
  margin-bottom: 25px;
}

.card-container p {
  margin: auto;
  max-width: 600px;
  line-height: 1.7;
}

@media (max-width: 1200px) {
  .design-section .container {
    width: 92%;
  }

  .design-intro {
    flex-direction: column;
    gap: 25px;
  }

  .design-intro .description {
    padding-left: 0;
    border-left: none;
  }

  .design-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .design-grid .grid-box {
    text-align: center;
    padding: 20px;
    line-height: 1.6;
  }

  .design-grid .grid-box .buttons {
    flex-direction: column;
    align-items: center;
  }

  .design-grid .grid-box .buttons button {
    width: 80%;
    padding: 20px;
  }
  .design-grid > .grid-box:last-child {
    grid-column: auto;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    width: 100%;
    margin-top: 20px;
    gap: 30px;
  }

  .gallery-grid .grid-box .gallery-container {
    display: flex;
    flex-direction: column;
  }

  .gallery-grid .grid-box .gallery-container img {
    width: 70%;
    margin: 0 auto;
    padding: 10px;
  }
}