/* --- NORDIC-INSPIRED THEME --- */

/* 1. VARIABLES & GLOBAL STYLES */
:root {
  --font-sans: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;

  /* Light Theme Palette */
  --bg-color: #f4f7f9;
  --card-bg: #ffffff;
  --text-color: #212529;
  --light-text: #6c757d;
  --border-color: #dee2e6;
  --primary-color: #7ad6e6;
  --primary-hover: #62c0d0;
  --secondary-color: #e9ecef;
  --error-color: #d9534f;
  --warning-color: #f0ad4e;
  --system-color: #5bc0de;
  --pin-bg-available: #ced4da;
  --pin-bg-special: #6c757d;
  --shadow-color: rgba(0, 0, 0, 0.05);
}

body.dark-mode {
  --bg-color: #1a202c;
  --card-bg: #2d3748;
  --text-color: #e2e8f0;
  --light-text: #a0aec0;
  --border-color: #4a5568;
  --primary-color: #2dd4bf;
  --primary-hover: #26bba9;
  --secondary-color: #4a5568;
  --error-color: #e57373;
  --warning-color: #ffb74d;
  --system-color: #4dd0e1;
  --pin-bg-available: #4a5568;
  --pin-bg-special: #718096;
  --shadow-color: rgba(0, 0, 0, 0.2);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition:
    background-color 0.3s,
    color 0.3s;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h2 {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  font-size: 1.25rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-hover);
}

/* 2. LAYOUT & STRUCTURE */
.container {
  max-width: 1800px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  margin-bottom: 1.5rem;
}

.content-grid {
  display: grid;
  grid-template-columns: 380px 1fr 380px;
  gap: 1.5rem;
  align-items: flex-start;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.main-view {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background-color: var(--card-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 6px var(--shadow-color);
  padding: 1.5rem;
  transition:
    background-color 0.3s,
    border-color 0.3s;
  display: flex;
  flex-direction: column;
}

.footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  color: var(--light-text);
  font-size: 0.9rem;
}
.footer > p {
  justify-self: start;
}
.footer .github-link {
  justify-self: end;
}
.footer-note {
  text-align: center;
  font-size: 0.85rem;
}

.github-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--light-text);
}

.github-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* 3. COMPONENTS */

.header-title .subtitle {
  font-size: 1.1rem;
  font-weight: 500;
  margin-top: 0.25rem;
  color: var(--light-text);
}

.header-title .subtitle a {
  color: var(--text-color);
  text-decoration: none;
  border-bottom: 2px solid var(--primary-color);
  transition: all 0.2s;
}
.header-title .subtitle a:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-hover);
}

.theme-switch-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.theme-icon {
  stroke: var(--light-text);
  transition: stroke 0.3s;
}
body:not(.dark-mode) #sun-icon {
  stroke: var(--warning-color);
}
body.dark-mode #moon-icon {
  stroke: var(--primary-color);
}

/* Theme Switch */
.theme-switch-wrapper {
  display: flex;
  align-items: center;
}
.theme-switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}
.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
}
.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.4s;
}
input:checked + .slider {
  background-color: var(--primary-color);
}
input:checked + .slider:before {
  transform: translateX(26px);
}
.slider.round {
  border-radius: 24px;
}
.slider.round:before {
  border-radius: 50%;
}

/* Package & MCU Selectors */
.selector-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.selector-group:not(:last-child) {
  margin-bottom: 1rem;
}
select,
.search-box,
input[type="file"],
textarea {
  width: 100%;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-sans);
  font-size: 1rem;
}
select[size] {
  padding: 0;
}
select[size] option {
  padding: 0.5rem 0.75rem;
}

/* Sidebar & Right Panel Content */
.sidebar-content,
.selected-view {
  flex-grow: 1;
  min-height: 0; /* Important for flex + overflow */
}
#content-peripherals,
#content-selected {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  min-height: 0;
}
#peripherals-list {
  overflow-y: auto;
  flex-grow: 1;
  margin-top: 1rem;
  min-height: 400px;
}
#selectedList {
  overflow-y: auto;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

/* Peripherals List */
#peripherals-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.accordion {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}
.accordion-item:not(:last-child) {
  border-bottom: 1px solid var(--border-color);
}
.accordion-header {
  background-color: var(--secondary-color);
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.accordion-header:hover {
  background-color: var(--border-color);
}
.accordion-content {
  display: none;
  padding: 1rem;
  background-color: var(--card-bg);
}
.peripheral-item {
  cursor: pointer;
  padding: 0.5rem;
  margin: 0 -0.5rem;
  border-radius: 4px;
}
.peripheral-item:hover {
  background-color: var(--secondary-color);
}
.single-peripheral-btn {
  width: 100%;
  text-align: left;
  padding: 0.75rem 1rem;
  background-color: var(--secondary-color);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-color);
}
.single-peripheral-btn:hover {
  background-color: var(--border-color);
}
.checkbox-group {
  padding: 0.5rem 0;
}
.checkbox-label {
  display: flex;
  align-items: center;
  font-weight: 500;
  cursor: pointer;
}
.checkbox-label input {
  margin-right: 8px;
}
.checkbox-description {
  margin-left: 24px;
  font-size: 0.9em;
  color: var(--light-text);
}

/* Selected List */
.selected-list {
  list-style-type: none;
  padding: 0;
}
.selected-item {
  background-color: var(--secondary-color);
  padding: 0.75rem 1rem;
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-bottom: 0.5rem;
}
.selected-list > .selected-item:last-child {
  margin-bottom: 0;
}
.selected-item:hover {
  background-color: var(--border-color);
}
.selected-item div > div {
  font-size: 0.85rem;
  color: var(--light-text);
}
.remove-btn {
  background-color: var(--error-color);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 0.8rem;
}

/* Buttons */
.button-group-vertical {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
button,
.button-group-vertical button {
  padding: 0.75rem 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.2s;
}
button:hover,
.button-group-vertical button:hover {
  background-color: var(--primary-hover);
}

button.secondary-btn {
  background-color: var(--secondary-color);
  color: var(--text-color);
}

button.secondary-btn:hover {
  background-color: var(--border-color);
}

/* Chip Display */
.chip-display h2 {
  margin-bottom: 1rem;
}
.chip-container {
  position: relative;
  width: 400px;
  height: 400px;
  margin: 1rem auto;
  background-color: var(--secondary-color);
  border-radius: 10px;
}
.chip-body {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
  background-color: var(--bg-color);
  border-radius: 5px;
}
.pin {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--pin-bg-available);
  border: 1px solid var(--light-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--text-color);
  cursor: pointer;
  transition: all 0.2s;
  z-index: 5;
}
.pin:hover {
  transform: scale(1.3);
  z-index: 10;
  border-color: var(--primary-color);
}
.pin.used {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-hover);
}
.pin.clock {
  border: 2px solid var(--warning-color);
}
.pin.required {
  /*background-color: var(--error-color);
  color: white;
  border-color: var(--error-color);
  */
}
.pin.system {
  background-color: var(--system-color);
  color: white;
  border-color: var(--system-color);
}
.pin.power-positive,
.pin.power-ground,
.pin.debug,
.pin.crystal-hf,
.pin.rf-antenna {
  background-color: var(--pin-bg-special);
  color: white;
  border-color: var(--pin-bg-special);
}

/* Legend, Info & Pin Details */
.legend {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
}
.legend-item span {
  line-height: 0.2;
}
.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.info-and-details {
  /* No longer a grid */
}
.pin-details {
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--light-text);
}
.pin-details h3 {
  margin-bottom: 0.5rem;
}
.pin-details ul {
  list-style-position: inside;
  padding-left: 0;
  text-align: left;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
}
.modal-content {
  background-color: var(--card-bg);
  margin: 10% auto;
  padding: 0;
  border-radius: 8px;
  width: 80%;
  max-width: 800px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Smaller modal for simple forms */
#oscillatorConfigModal .modal-content,
#boardInfoModal .modal-content,
#importExportInfoModal .modal-content {
  max-width: 600px;
}
.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-header h2 {
  font-size: 1.25rem;
  margin: 0;
  padding: 0;
  border: none;
}
.close {
  color: var(--light-text);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}
.close:hover {
  color: var(--text-color);
}
#importModalBody,
#modalBody,
#boardInfoModalBody,
#oscillatorModalBody {
  padding: 1.5rem 2rem;
  overflow-y: auto;
}

/* Disabled form elements */
select:disabled,
input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--secondary-color);
  color: var(--light-text);
}

option:disabled {
  opacity: 0.5;
  color: var(--light-text);
  font-style: italic;
}
.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: var(--secondary-color);
}

/* Pin Selection Table */
.pin-selection-table {
  width: 100%;
  border-collapse: collapse;
}
.pin-selection-table th,
.pin-selection-table td {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  text-align: left;
}
.pin-selection-table th {
  background-color: var(--secondary-color);
}

/* Final Overrides */
.empty-message {
  color: var(--light-text);
  text-align: center;
  padding: 2rem 0;
}
.peripheral-item.disabled,
.single-peripheral-btn.disabled {
  opacity: 0.5;
  background-color: var(--secondary-color);
  cursor: not-allowed;
}

/* Pin Details Table */
.pin-details-table {
  width: 100%;
  margin-top: 1rem;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}
.pin-details-table td {
  padding: 0.5rem;
  vertical-align: top;
  border-top: 1px solid var(--border-color);
}
.pin-details-table tr:first-child td {
  border-top: none;
}
.pin-details-table td:first-child {
  width: 90px;
  font-weight: 600;
  color: var(--light-text);
}

/* --- FORM STYLING --- */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
}

.form-group label[style*="cursor: pointer"] {
  font-weight: normal;
}

.form-group .required {
  color: var(--error-color);
  margin-left: 3px;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font-family: var(--font-sans);
  font-size: 14px;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(122, 214, 230, 0.1);
}

.form-group small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--light-text);
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: var(--error-color);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.oscillator-config {
  padding: 12px 16px;
  background-color: var(--secondary-color);
  border-radius: 6px;
  margin-bottom: 16px;
}

.oscillator-config label {
  margin: 0;
  font-weight: normal;
}

.oscillator-config select {
  padding: 6px 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font-family: var(--font-sans);
  font-size: 14px;
}

.oscillator-group .single-peripheral-btn.selected {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
}

/* GPIO-specific styling */
.pin-selection-table input[type="text"],
.pin-selection-table select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font-family: var(--font-sans);
  font-size: 14px;
}

.pin-selection-table input[type="text"]:focus,
.pin-selection-table select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(122, 214, 230, 0.1);
}

.add-gpio-btn {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.2s;
}

.add-gpio-btn:hover {
  background-color: var(--primary-hover);
}

.gpio-remove-btn {
  background-color: var(--error-color);
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
}

.gpio-remove-btn:hover {
  background-color: #c9302c;
}

.validation-error {
  border-color: var(--error-color) !important;
  box-shadow: 0 0 0 2px rgba(217, 83, 79, 0.2) !important;
}