:root {
  --background: royalblue;
}

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

html,
body {
  height: 100%;
  width: 100%;
}
body {
  font-family: "poppins", serif, sans-serif;
}
main {
  min-height: 100%;
  width: 100%;
  background: linear-gradient(145deg, #0066cc 0%, #0044aa 100%);
  color: white;
  padding: 12px;
}
header {
  /* background-color: brown; */
}
header h1 {
  font-size: 3rem;
  text-align: center;
  font-weight: 800;
}

.set-goal-container {
  /* background-color: pink; */
  text-align: center;
  margin: 10px 0;
  padding: 12px;
}
.set-goal-container h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.set-goal-buttons-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  /* width: 80%; */
  flex-wrap: wrap;
}
.set-goal-container button {
  /* padding: 10px 16px; */
  min-width: 100px;
  min-height: 40px;
  flex-wrap: wrap;
  font-size: 15px;
  font-family: "Poppins", serif;
  color: white;
  font-weight: 600;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: 0.3s ease;
}
.set-goal-container button:hover {
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(0, 153, 255, 0.3);
}
.set-goal-container button.active,
.set-goal-container button:focus {
  background: #00ccff;
  border-color: #00ccff;
  color: white;
  scale: 1.09;
  outline: none;
}

.goal-container {
  /* background-color: red; */
  height: 40vh;
  max-height: 40vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.goal-container h3 {
  text-align: center;
  padding: 10px;
  font-size: 1.5rem;
  font-weight: 500;
  text-transform: uppercase;
}
.cup {
  height: 80%;
  width: 240px;
  max-width: 300px;
  margin: 0 auto;
  border-radius: 0 0 35px 35px;
  /* color: royalblue; */
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(12px);
}
.cup .goal-remained {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  /* flex: 1; */
  height: 100%;
  transition: 0.3s ease;
  /* background-color: red; */
}
.cup .goal-remained span {
  /* background-color: pink; */
  font-size: 2rem;
  line-height: 1;
}
.cup .goal-remained small {
  font-size: 0.5rem;
}
.cup .goal-completed-percentage {
  font-size: 2rem;
  background: linear-gradient(180deg, #00ccff 0%, #0099ff 100%);
  box-shadow: 0 4px 15px rgba(0, 204, 255, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.3s ease;
  height: 0%;
  width: 100%;
}

.fill-goal-container {
  /* background-color: green; */
  margin: 10px auto;
  text-align: center;
  padding: 10px;
  width: 100%;
  max-width: 755px;
}
.fill-goal-container p {
  font-size: 1rem;
  font-weight: 400;
  margin-bottom: 5px;
}
.fill-goal-cups-container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  /* background-color: yellow; */
  padding: 10px;
}
.cup.small-cup {
  width: 50px;
  aspect-ratio: 8/10;
  border-radius: 0 0 15px 15px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  overflow: hidden;
}

.cup.small-cup.filled {
  background: linear-gradient(180deg, #00ccff 0%, #0099ff 100%);
  box-shadow: 0 4px 15px rgba(0, 204, 255, 0.3);
  pointer-events: none;
}

/* Animations
  @keyframes waterRise {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }
  
  .water-fill {
    animation: waterRise 0.8s ease-out;
  } */