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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 2vw;
  position: relative;
}

/* Contact Button Styles */
.contact-button {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #333;
  border: 2px solid #555;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.contact-button:hover {
  transform: scale(1.1);
  border-color: #ff9500;
  box-shadow: 0 6px 20px rgba(255, 149, 0, 0.3);
}

.contact-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.contact-tooltip {
  position: absolute;
  top: 50%;
  right: 75px;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.95);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  white-space: nowrap;
  opacity: 1;
  visibility: visible;
  transition: all 0.3s ease;
  border: none;
  z-index: 1001;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.contact-tooltip::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 6px solid rgba(0, 0, 0, 0.95);
}

.contact-tooltip.show {
  opacity: 1 !important;
  visibility: visible !important;
}

/* Force show tooltip on hover as backup */
.contact-button:hover .contact-tooltip {
  opacity: 1;
  visibility: visible;
}

/* Social Media Modal */
.social-modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  background: #111;
  margin: 10% auto;
  padding: 20px;
  border: 2px solid #333;
  border-radius: 15px;
  width: 95%;
  max-width: 350px;
  text-align: center;
  position: relative;
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
  max-height: 80vh;
  overflow-y: auto;
}

/* Better spacing on larger screens */
@media (min-width: 600px) {
  .modal-content {
    margin: 15% auto;
    padding: 30px;
    width: 90%;
    max-width: 500px;
  }
}

.close-btn {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
  position: absolute;
  right: 15px;
  top: 10px;
  cursor: pointer;
  transition: color 0.3s ease;
}

.close-btn:hover {
  color: #ff9500;
}

.modal-content h3 {
  color: white;
  margin-bottom: 25px;
  font-size: 24px;
  font-weight: 300;
}

.social-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

/* Two columns on larger screens */
@media (min-width: 600px) {
  .social-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 15px;
  background: #222;
  border: 1px solid #444;
  border-radius: 10px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 14px;
  gap: 10px;
}

.social-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

.social-icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  flex-shrink: 0;
}

.calculator {
  background: #000;
  border: 2px solid #333;
  border-radius: 3vw;
  padding: 3vw;
  width: 90vw;
  max-width: 300px;
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.display {
  background: #000;
  padding: 4vw 2vw 2vw;
  text-align: right;
  margin-bottom: 3vw;
}

.result {
  color: white;
  font-size: 12vw;
  font-weight: 300;
  line-height: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2vw;
}

.btn {
  aspect-ratio: 1;
  border-radius: 50%;
  border: none;
  font-size: 5vw;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  transform: scale(1.05);
}

.btn:active {
  transform: scale(0.95);
}

.btn.number {
  background: #333;
  color: white;
}

.btn.function {
  background: #a6a6a6;
  color: black;
}

.btn.operator {
  background: #ff9500;
  color: white;
}

.btn.operator.active {
  background: white;
  color: #ff9500;
}

/* Special styling for backspace symbol */
.btn[data-action="backspace"] {
  font-size: 4vw;
}

/* Larger screens - switch to fixed sizes */
@media (min-width: 600px) {
  body {
    padding: 20px;
  }

  .calculator {
    width: 300px;
    border: 2px solid #333;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
  }

  .display {
    padding: 30px 15px 15px;
    margin-bottom: 20px;
  }

  .result {
    font-size: 60px;
  }

  .buttons {
    gap: 12px;
  }

  .btn {
    font-size: 24px;
  }

  .btn[data-action="backspace"] {
    font-size: 18px;
  }
}

@media (min-width: 768px) {
  .calculator {
    width: 320px;
    padding: 25px;
  }

  .display {
    padding: 40px 20px 20px;
  }

  .result {
    font-size: 80px;
  }

  .buttons {
    gap: 15px;
  }

  .btn {
    font-size: 32px;
  }

  .btn[data-action="backspace"] {
    font-size: 24px;
  }
}