/* ============================================
   PicoCTR Web Configurator - Styles
   ============================================ */

:root {
    --color-bg: #0f1117;
    --color-surface: #1a1d27;
    --color-surface-hover: #22263a;
    --color-border: #2d3148;
    --color-text: #e4e6f0;
    --color-text-muted: #8b8fa8;
    --color-primary: #6c5ce7;
    --color-primary-hover: #7d6ff0;
    --color-success: #00b894;
    --color-success-hover: #00d9a5;
    --color-warning: #fdcb6e;
    --color-warning-hover: #ffd93d;
    --color-danger: #e17055;
    --color-danger-hover: #ff7b5c;
    --color-info: #74b9ff;
    --color-connected: #00b894;
    --color-disconnected: #e17055;

    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--color-primary), #a855f7);
    padding: 2rem;
    text-align: center;
}

.header-content h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.subtitle {
    opacity: 0.85;
    font-size: 0.95rem;
}

/* Main */
main {
    max-width: 700px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.warning-card {
    border-color: var(--color-warning);
    background: rgba(253, 203, 110, 0.08);
}

.warning-card h2 {
    color: var(--color-warning);
}

/* Connection */
.connect-actions {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.bootstrap-link {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.status-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.connected {
    background: var(--color-connected);
    box-shadow: 0 0 8px var(--color-connected);
    animation: pulse 2s infinite;
}

.status-dot.disconnected {
    background: var(--color-disconnected);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}

.info-item {
    background: rgba(0, 0, 0, 0.15);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}

.info-item label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.info-item span {
    font-weight: 500;
    font-size: 0.9rem;
    word-break: break-all;
}

/* Settings Form */
.settings-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.form-group > label {
    font-size: 0.9rem;
    font-weight: 500;
    min-width: 120px;
    flex-shrink: 0;
}

/* Toggle Switch */
.toggle-wrapper {
    position: relative;
}

.toggle-input {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
}

.toggle-label {
    display: block;
    width: 52px;
    height: 28px;
    background: var(--color-border);
    border-radius: 14px;
    cursor: pointer;
    position: relative;
    transition: background var(--transition);
}

.toggle-label::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: var(--color-text);
    border-radius: 50%;
    transition: transform var(--transition);
}

.toggle-input:checked + .toggle-label {
    background: var(--color-primary);
}

.toggle-input:checked + .toggle-label::after {
    transform: translateX(24px);
}

/* Select */
.form-select {
    flex: 1;
    max-width: 250px;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.9rem;
    cursor: pointer;
    appearance: auto;
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Inputs */
.form-input {
    flex: 1;
    max-width: 250px;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.9rem;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-input-small {
    width: 60px;
    padding: 0.4rem 0.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.85rem;
    text-align: center;
}

.form-input-small:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Color Picker */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    max-width: 350px;
}

.color-input {
    width: 48px;
    height: 36px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: none;
    padding: 2px;
}

.color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.color-values {
    display: flex;
    gap: 0.5rem;
}

.color-channel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.color-channel label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 600;
}

/* Slider */
.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    max-width: 300px;
}

.form-range {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    outline: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    transition: background var(--transition);
}

.form-range::-webkit-slider-thumb:hover {
    background: var(--color-primary-hover);
}

.range-value {
    font-size: 0.85rem;
    font-weight: 600;
    min-width: 32px;
    text-align: right;
    color: var(--color-text-muted);
}

/* Unsaved Banner */
.unsaved-banner {
    background: rgba(253, 203, 110, 0.1);
    border: 1px solid rgba(253, 203, 110, 0.3);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--color-warning);
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-icon {
    font-size: 1rem;
}

.btn-large {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
}

.btn-small {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}
.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: var(--color-border);
    color: var(--color-text);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--color-surface-hover);
}

.btn-success {
    background: var(--color-success);
    color: white;
}
.btn-success:hover:not(:disabled) {
    background: var(--color-success-hover);
}

.btn-warning {
    background: rgba(253, 203, 110, 0.2);
    color: var(--color-warning);
    border: 1px solid rgba(253, 203, 110, 0.3);
}
.btn-warning:hover:not(:disabled) {
    background: rgba(253, 203, 110, 0.3);
}

.btn-danger {
    background: rgba(225, 112, 85, 0.2);
    color: var(--color-danger);
    border: 1px solid rgba(225, 112, 85, 0.3);
}
.btn-danger:hover:not(:disabled) {
    background: rgba(225, 112, 85, 0.3);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
}
.btn-ghost:hover:not(:disabled) {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Log */
.log-output {
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.6;
}

.log-entry {
    padding: 0.1rem 0;
}

.log-entry.log-info {
    color: var(--color-info);
}

.log-entry.log-success {
    color: var(--color-success);
}

.log-entry.log-warning {
    color: var(--color-warning);
}

.log-entry.log-error {
    color: var(--color-danger);
}

.log-entry .log-time {
    color: var(--color-text-muted);
    margin-right: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.footer-note {
    margin-top: 0.25rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 600px) {
    .header-content h1 {
        font-size: 1.4rem;
    }

    .form-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .form-select,
    .form-input,
    .color-picker-wrapper,
    .slider-wrapper {
        max-width: 100%;
        width: 100%;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Modal Dialog */
.modal-dialog {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 8px 48px rgba(0, 0, 0, 0.5);
}

.modal-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    padding: 1.5rem;
}

.modal-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.modal-content p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.modal-content p strong {
    color: var(--color-warning);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

/* ============================================
   Firmware Update Section
   ============================================ */

.firmware-description {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

.firmware-steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.firmware-step {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.firmware-step.step-active {
    border-color: var(--color-primary);
}

.firmware-step.step-complete {
    border-color: var(--color-success);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.15);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--color-border);
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-active .step-number {
    background: var(--color-primary);
}

.step-complete .step-number {
    background: var(--color-success);
}

.step-title {
    font-size: 0.9rem;
    font-weight: 500;
}

.step-content {
    padding: 1rem;
}

/* File picker */
.file-picker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.fw-file-name {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    word-break: break-all;
}

.fw-file-name.fw-file-hint {
    color: var(--color-primary);
    font-weight: 500;
}

/* File info */
.fw-file-info {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-sm);
}

.fw-info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.2rem 0;
    font-size: 0.8rem;
}

.fw-info-row span:first-child {
    color: var(--color-text-muted);
}

.fw-info-row span:last-child {
    font-weight: 500;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* Device info in firmware section */
.fw-device-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

/* Progress bar */
.fw-progress-container {
    margin-top: 0.75rem;
}

.fw-progress-bar {
    height: 18px;
    background: var(--color-border);
    border-radius: 9px;
    overflow: hidden;
    position: relative;
}

.fw-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success));
    border-radius: 9px;
    transition: width 0.15s ease;
    position: relative;
}

.fw-progress-fill.error {
    background: var(--color-danger);
}

.fw-progress-fill.complete {
    background: var(--color-success);
}

.fw-progress-text {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    text-align: center;
}

/* Platform note */
.fw-platform-note {
    margin-top: 1.25rem;
    padding: 0.75rem;
    background: rgba(253, 203, 110, 0.08);
    border: 1px solid rgba(253, 203, 110, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.fw-platform-note strong {
    color: var(--color-warning);
}

.fw-platform-note a {
    color: var(--color-primary);
    text-decoration: none;
}

.fw-platform-note a:hover {
    text-decoration: underline;
}

/* ============================================
   Firmware Source Tabs
   ============================================ */

.fw-source-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.fw-source-tab {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: none;
    background: rgba(0, 0, 0, 0.15);
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.fw-source-tab:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.fw-source-tab:hover:not(:disabled) {
    background: rgba(0, 0, 0, 0.25);
    color: var(--color-text);
}

.fw-source-tab.active {
    background: var(--color-primary);
    color: #fff;
}

.fw-source-tab:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.fw-source-panel {
    min-height: 60px;
}

/* ============================================
   GitHub Release List
   ============================================ */

.fw-release-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.fw-release-error {
    padding: 0.75rem;
    background: rgba(231, 76, 60, 0.08);
    border: 1px solid rgba(231, 76, 60, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-danger);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.fw-release-error a {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.8rem;
}

.fw-release-error a:hover {
    text-decoration: underline;
}

.fw-release-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.fw-release-tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background: var(--color-primary);
    color: #fff;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 700;
}

.fw-release-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.fw-release-link {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--color-primary);
    text-decoration: none;
}

.fw-release-link:hover {
    text-decoration: underline;
}

.fw-release-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.fw-release-category {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0.5rem 0.25rem 0.15rem;
    margin-top: 0.25rem;
}

.fw-release-category:first-child {
    margin-top: 0;
}

.fw-release-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    background: rgba(0, 0, 0, 0.12);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    width: 100%;
    text-align: left;
    color: var(--color-text);
    font-size: 0.85rem;
    gap: 0.75rem;
}

.fw-release-item-legacy {
    opacity: 0.7;
}

.fw-release-item-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.fw-release-item-desc {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fw-release-item:hover {
    background: rgba(0, 0, 0, 0.2);
    border-color: var(--color-primary);
}

.fw-release-item.selected {
    background: rgba(100, 149, 237, 0.12);
    border-color: var(--color-primary);
}

.fw-release-item.downloading {
    opacity: 0.7;
    pointer-events: none;
}

.fw-release-item-name {
    font-weight: 500;
}

.fw-release-item-meta {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* ============================================
   Firmware Validation Warning
   ============================================ */

.fw-validation-error {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(231, 76, 60, 0.08);
    border: 1px solid rgba(231, 76, 60, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-error);
    line-height: 1.5;
}