/* Form Container */
.form-container {
  max-width: 28rem;
  margin: 0 auto;
  padding: 0 0.75rem;
}

@media (min-width: 480px) {
  .form-container {
    padding: 0 1rem;
  }
}

@media (min-width: 768px) {
  .form-container {
    max-width: 32rem;
    padding: 0 1.5rem;
  }
}

/* Form Card */
.form-card {
  background: var(--card);
  border: 1px solid var(--bord);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

@media (min-width: 480px) {
  .form-card {
    border-radius: 1.5rem;
    padding: 2rem;
  }
}

@media (min-width: 768px) {
  .form-card {
    border-radius: 2rem;
    padding: 2.5rem;
  }
}

/* Form Group */
.form-group {
  margin-bottom: 1rem;
}

@media (min-width: 480px) {
  .form-group {
    margin-bottom: 1.25rem;
  }
}

.form-group:last-child {
  margin-bottom: 0;
}

/* Form Label */
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text);
  margin-bottom: 0.375rem;
}

@media (min-width: 480px) {
  .form-label {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }
}

.form-label.required::after {
  content: " *";
  color: #ef4444;
}

/* Form Input */
.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--bord);
  border-radius: 0.75rem;
  background: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  outline: none;
}

@media (min-width: 480px) {
  .form-input {
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    font-size: 1rem;
  }
}

[data-theme="dark"] .form-input {
  background: rgba(255,255,255,0.05);
}

.form-input:focus {
  border-color: rgba(1,209,251,0.6);
  box-shadow: 0 0 0 2px rgba(1,209,251,0.3);
  background: rgba(255,255,255,0.9);
}

[data-theme="dark"] .form-input:focus {
  background: rgba(255,255,255,0.1);
}

.form-input::placeholder {
  color: var(--muted);
}

/* Textarea */
.form-textarea {
  min-height: 4rem;
  resize: vertical;
}

@media (min-width: 480px) {
  .form-textarea {
    min-height: 5rem;
  }
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

/* File Input */
.form-file {
  position: relative;
  display: inline-block;
  cursor: pointer;
  width: 100%;
}

.form-file input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.form-file-label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  border: 2px dashed var(--bord);
  border-radius: 1rem;
  background: rgba(0,0,0,0.02);
  transition: all 0.2s ease;
  font-size: 0.875rem;
  color: var(--muted);
}

@media (min-width: 480px) {
  .form-file-label {
    border-radius: 1.5rem;
    font-size: 1rem;
  }
}

[data-theme="dark"] .form-file-label {
  background: rgba(255,255,255,0.02);
}

.form-file:hover .form-file-label,
.form-file-label.drag-over {
  border-color: var(--primary);
  background: rgba(1,209,251,0.05);
  color: var(--primary);
}

/* Checkbox and Radio */
.form-checkbox,
.form-radio {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  cursor: pointer;
}

.form-checkbox input,
.form-radio input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  cursor: pointer;
}

@media (min-width: 480px) {
  .form-checkbox input,
  .form-radio input {
    width: 1.125rem;
    height: 1.125rem;
  }
}

.form-checkbox label,
.form-radio label {
  font-size: 0.875rem;
  cursor: pointer;
  margin: 0;
  font-weight: normal;
}

@media (min-width: 480px) {
  .form-checkbox label,
  .form-radio label {
    font-size: 1rem;
  }
}

/* Form Error */
.form-error {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: #ef4444;
}

@media (min-width: 480px) {
  .form-error {
    font-size: 0.875rem;
  }
}

.form-input.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

/* Form Help Text */
.form-help {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted);
}

@media (min-width: 480px) {
  .form-help {
    font-size: 0.875rem;
  }
}

/* Form Grid */
.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
/* Tablet Navigation Styles */
@media (min-width: 768px) and (max-width: 1024px) {
  #site-header {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
  }

  body {
    transition: padding-top 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  #mobileMenu {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    z-index: 40;
    transform: translateY(-100%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(133deg, rgba(1, 209, 251, 0.562) 0%, rgb(var(--bg-rgb)) 0%, rgb(var(--bg-rgb)) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    box-shadow:
      0 20px 40px rgba(0,0,0,0.15),
      0 0 0 1px rgba(1, 209, 251, 0.1),
      inset 0 1px 0 rgba(255,255,255,0.1);
  }

  #mobileMenu:not(.hidden) {
    transform: translateY(0);
  }

  #mobileMenu .nav-link {
    position: relative;
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 12px 16px;
    margin: 4px 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  #mobileMenu .nav-link:hover::before {
    height: 70%;
  }
}
  .form-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .form-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Modal Styles */
.modal:not(.hidden) {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--card);
  border: 1px solid var(--bord);
  border-radius: 1rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  width: 100%;
}

@media (min-width: 480px) {
  .modal-content {
    border-radius: 1.5rem;
    max-width: 28rem;
  }
}

@media (min-width: 768px) {
  .modal-content {
    border-radius: 2rem;
    max-width: 32rem;
  }
}

.modal-header {
  padding: 1rem 1rem 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 480px) {
  .modal-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
  }
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 700;
}

@media (min-width: 480px) {
  .modal-title {
    font-size: 1.25rem;
  }
}

.modal-close {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  border: none;
  background: rgba(0,0,0,0.05);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

[data-theme="dark"] .modal-close {
  background: rgba(255,255,255,0.1);
}

.modal-close:hover {
  background: rgba(0,0,0,0.1);
  color: var(--text);
}

[data-theme="dark"] .modal-close:hover {
  background: rgba(255,255,255,0.2);
}

.modal-body {
  padding: 1rem;
}

@media (min-width: 480px) {
  .modal-body {
    padding: 1.5rem;
  }
}

.modal-footer {
  padding: 0 1rem 1rem 1rem;
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

@media (min-width: 480px) {
  .modal-footer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    gap: 1rem;
  }
}

/* Toast Notification */
.toast {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 60;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  font-size: 0.875rem;
  font-weight: 500;
  max-width: 20rem;
  transform: translateX(100%);
  opacity: 0;
  transition: all 0.3s ease;
}

@media (min-width: 480px) {
  .toast {
    border-radius: 1rem;
    padding: 1rem 1.25rem;
    font-size: 1rem;
  }
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast.success {
  background: rgba(34, 197, 94, 0.9);
  border-color: rgba(34, 197, 94, 0.5);
  color: white;
}

.toast.error {
  background: rgba(239, 68, 68, 0.9);
  border-color: rgba(239, 68, 68, 0.5);
  color: white;
}

.toast.warning {
  background: rgba(245, 158, 11, 0.9);
  border-color: rgba(245, 158, 11, 0.5);
  color: white;
}

.toast.info {
  background: rgba(59, 130, 246, 0.9);
  border-color: rgba(59, 130, 246, 0.5);
  color: white;
}

/* Loading Spinner */
.loading-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: currentColor;
  animation: spin 0.8s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Tab Navigation */
.tab-nav {
  display: flex;
  gap: 0.25rem;
  background: rgba(0,0,0,0.04);
  border-radius: 0.75rem;
  padding: 0.25rem;
  margin-bottom: 1.5rem;
}

[data-theme="dark"] .tab-nav {
  background: rgba(255,255,255,0.08);
}

.tab-btn {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

@media (min-width: 480px) {
  .tab-btn {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
}

.tab-btn.active {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.tab-btn:hover:not(.active) {
  color: var(--text);
  background: rgba(255,255,255,0.5);
}

[data-theme="dark"] .tab-btn:hover:not(.active) {
  background: rgba(255,255,255,0.1);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 0.5rem;
  background: rgba(0,0,0,0.1);
  border-radius: 0.25rem;
  overflow: hidden;
}

[data-theme="dark"] .progress-bar {
  background: rgba(255,255,255,0.1);
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 0.25rem;
  transition: width 0.3s ease;
}

/* Accordion */
.accordion-item {
  border: 1px solid var(--bord);
  border-radius: 0.75rem;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.accordion-header {
  padding: 1rem;
  background: rgba(0,0,0,0.02);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  transition: all 0.2s ease;
}

[data-theme="dark"] .accordion-header {
  background: rgba(255,255,255,0.03);
}

.accordion-header:hover {
  background: rgba(0,0,0,0.04);
}

[data-theme="dark"] .accordion-header:hover {
  background: rgba(255,255,255,0.06);
}

.accordion-content {
  padding: 0 1rem 1rem 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
}

@media (min-width: 480px) {
  .accordion-content {
    font-size: 1rem;
  }
}

/* Responsive utilities */
@media (max-width: 479px) {
  .hidden-mobile {
    display: none !important;
  }
}

@media (min-width: 480px) {
  .hidden-desktop {
    display: none !important;
  }
}

/* Print styles */
@media print {
  .modal,
  .toast,
  .form-file,
  .tab-nav {
    display: none !important;
  }

  .form-input,
  .form-textarea,
  .form-select {
    border: 1px solid #ccc;
    background: white;
  }
}

/* Mobile Navigation Styles */
@media (max-width: 767px) {
  #site-header {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
  }

  body {
    transition: padding-top 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  #mobileMenu {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    z-index: 40;
    transform: translateY(-100%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(133deg, rgba(1, 209, 251, 0.562) 0%, rgb(var(--bg-rgb)) 0%, rgb(var(--bg-rgb)) 100%);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    box-shadow:
      0 20px 40px rgba(0,0,0,0.15),
      0 0 0 1px rgba(1, 209, 251, 0.1),
      inset 0 1px 0 rgba(255,255,255,0.1);
  }

  #mobileMenu:not(.hidden) {
    transform: translateY(0);
  }

  #mobileMenu .nav-link {
    position: relative;
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 12px 16px;
    margin: 4px 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  #mobileMenu .nav-link:hover::before {
    height: 70%;
  }


  /* Menu button icon animation */
  #menuBtn {
    transition: all 0.3s ease;
  }

  #menuBtn[aria-expanded="true"] .menu-icon-open {
    opacity: 0;
    transform: scale(0.75) rotate(180deg);
  }

  #menuBtn[aria-expanded="true"] .menu-icon-close {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }

  .menu-icon-open, .menu-icon-close {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
}