/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: linear-gradient(135deg, #c7deff 0%, #667eea 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== HEADER ===== */
.header {
  text-align: center;
  margin-bottom: 4rem;
}

.header__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1a202c;
  margin-bottom: 0.5rem;
  letter-spacing: -0.5px;
}

.header__subtitle {
  font-size: 1.1rem;
  color: #718096;
  font-weight: 400;
  letter-spacing: 0.3px;
}

/* ===== PROJECTS GRID ===== */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* ===== CARD BLOCK ===== */
.card {
  display: flex;
  flex-direction: column;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e2e8f0;
}

.card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}

/* ===== CARD ELEMENTS ===== */
.card__header {
  padding: 2rem 2rem 1rem;
  border-bottom: 2px solid #f0f4f8;
}

.card__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2d3748;
  margin: 0;
}

.card__body {
  padding: 1.5rem 2rem;
  flex-grow: 1;
  display: flex;
  align-items: center;
}

.card__description {
  font-size: 0.95rem;
  color: #718096;
  line-height: 1.6;
  margin: 0;
}

.card__footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid #f0f4f8;
  background: #f9fafb;
}

/* ===== CARD SUB-ELEMENTS ===== */
.card__button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

/* ===== CARD STATES & HOVERS ===== */
.card__button:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
}

/* ===== MEDIA QUERIES ===== */
@media (max-width: 640px) {
  .header__title {
    font-size: 2rem;
  }

  .header__subtitle {
    font-size: 1rem;
  }

  .projects {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .card {
    border-radius: 10px;
  }

  .card__header {
    padding: 1.5rem 1.5rem 1rem;
  }

  .card__title {
    font-size: 1.25rem;
  }

  .card__body {
    padding: 1.25rem 1.5rem;
  }

  .card__footer {
    padding: 1.25rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .header__title {
    font-size: 3rem;
  }

  .projects {
    gap: 2.5rem;
  }
}