/* Modern Responsive Design System */

/* Base responsive typography */
html {
  font-size: 16px;
}

@media (max-width: 640px) {
  html { font-size: 14px; }
}

@media (min-width: 1024px) {
  html { font-size: 18px; }
}

/* Responsive containers */
.container-responsive {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container-responsive { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .container-responsive { padding: 0 2rem; }
}

/* Responsive grid system */
.grid-responsive {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-responsive { gap: 1.5rem; }
  .grid-responsive.cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid-responsive { gap: 2rem; }
  .grid-responsive.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-responsive.cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
  .grid-responsive { gap: 2.5rem; }
}

/* Responsive buttons */
.btn-responsive {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .btn-responsive {
    padding: 1rem 2rem;
    font-size: 1.125rem;
  }
}

/* Responsive cards */
.card-responsive {
  background: white;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

@media (min-width: 640px) {
  .card-responsive {
    padding: 2rem;
    border-radius: 1rem;
  }
}

.card-responsive:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Responsive forms */
.form-responsive input,
.form-responsive textarea,
.form-responsive select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  font-size: 1rem;
  transition: all 0.3s ease;
}

@media (min-width: 640px) {
  .form-responsive input,
  .form-responsive textarea,
  .form-responsive select {
    padding: 1rem;
  }
}

.form-responsive input:focus,
.form-responsive textarea:focus,
.form-responsive select:focus {
  outline: none;
  border-color: #D4AF37;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* Responsive tables */
.table-responsive {
  overflow-x: auto;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.table-responsive table {
  width: 100%;
  min-width: 600px;
}

@media (min-width: 768px) {
  .table-responsive table {
    min-width: auto;
  }
}

/* Mobile utilities */
.mobile-hidden {
  display: none;
}

@media (min-width: 768px) {
  .mobile-hidden {
    display: block;
  }
}

.desktop-hidden {
  display: block;
}

@media (min-width: 768px) {
  .desktop-hidden {
    display: none;
  }
}

/* Responsive flex */
.flex-responsive {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .flex-responsive {
    flex-direction: row;
    gap: 1.5rem;
  }
}

/* Animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}