/* ========================================
   PATCHER - Modern Technical Patch Tool
   CSS Styles
   ======================================== */

:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #64748b;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Background Colors */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-light: #1e293b;
    --bg-lighter: #334155;
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Border Colors */
    --border-color: #334155;
    --border-light: #475569;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    
    /* Port Colors */
    --port-sdi: #22c55e;
    --port-hdmi: #ef4444;
    --port-xlr: #3b82f6;
    --port-trs: #f59e0b;
    --port-rca: #f97316;
    --port-dante: #8b5cf6;
    --port-aes: #06b6d4;
    --port-ethernet: #64748b;
    --port-usb: #ec4899;
    --port-thunderbolt: #14b8a6;
    --port-displayport: #84cc16;
    --port-fiber: #a855f7;
    --port-bnc: #eab308;
    --port-ultranet: #10b981;
    --port-madi: #f472b6;
    --port-other: #94a3b8;
    
    /* Spacing */
    --sidebar-width: 280px;
    --toolbar-height: 48px;
    --statusbar-height: 28px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

/* ========================================
   APP CONTAINER
   ======================================== */

.app-container {
    display: flex;
    height: 100vh;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-darker);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-header h1 i {
    color: var(--primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

/* Search Box */
.search-box {
    position: relative;
    margin-bottom: 16px;
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.search-box input {
    width: 100%;
    padding: 10px 12px 10px 36px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

/* Device Categories */
.device-categories {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.category {
    background: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
}

.category-header {
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: background 0.2s;
    font-weight: 500;
    font-size: 0.875rem;
}

.category-header:hover {
    background: var(--bg-lighter);
}

.category-header i {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.category.collapsed .category-header i {
    transform: rotate(-90deg);
}

.category.collapsed .category-devices {
    display: none;
}

.category-devices {
    padding: 4px 8px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.device-item {
    padding: 8px 12px;
    background: var(--bg-darker);
    border-radius: 6px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: grab;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.device-item:hover {
    background: var(--primary);
    color: white;
}

.device-item.dragging {
    opacity: 0.5;
}

.device-item i {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Add Device Button */
.btn-add-device {
    width: 100%;
    margin-top: 16px;
    padding: 12px;
    background: transparent;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-add-device:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* ========================================
   WORKSPACE
   ======================================== */

.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Toolbar */
.toolbar {
    height: var(--toolbar-height);
    background: var(--bg-darker);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tool-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.tool-btn:active {
    background: var(--bg-lighter);
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 8px;
}

.zoom-level {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 40px;
    text-align: center;
}

/* Canvas Container */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: 
        radial-gradient(circle at center, var(--bg-light) 0%, var(--bg-dark) 100%),
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 100% 100%, 20px 20px, 20px 20px;
    background-position: 0 0, -1px -1px, -1px -1px;
}

.connections-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connections-layer path {
    pointer-events: stroke;
    cursor: pointer;
}

.connections-layer path:hover {
    stroke-width: 4px !important;
}

.devices-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

/* Status Bar */
.status-bar {
    height: var(--statusbar-height);
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.status-right {
    display: flex;
    gap: 16px;
}

/* ========================================
   DEVICE ON CANVAS
   ======================================== */

.device {
    position: absolute;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    min-width: 180px;
    cursor: move;
    box-shadow: var(--shadow-md);
    transition: box-shadow 0.2s, border-color 0.2s;
    user-select: none;
}

.device:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
}

.device.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.device-header {
    padding: 10px 14px;
    background: var(--device-color, var(--primary));
    border-radius: 10px 10px 0 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.device-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

.device-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: white;
}

.device-ports {
    display: flex;
    justify-content: space-between;
    padding: 10px 8px;
    gap: 16px;
    min-width: 200px;
}

.ports-column {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ports-column.inputs {
    align-items: flex-start;
}

.ports-column.outputs {
    align-items: flex-end;
}

.port {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: crosshair;
    padding: 3px 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.03);
    transition: background 0.2s;
    white-space: nowrap;
}

.port span {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.port:hover {
    background: rgba(255, 255, 255, 0.1);
}

.port:hover .port-connector {
    transform: scale(1.2);
}

.port-connector {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid currentColor;
    background: var(--bg-dark);
    transition: transform 0.2s, background 0.2s;
    flex-shrink: 0;
}

.port-connector.connected {
    background: currentColor;
}

.port.connecting .port-connector {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.port.input .port-connector {
    color: var(--success);
}

.port.output .port-connector {
    color: var(--warning);
}

/* Port type colors */
.port[data-port-type="sdi"] .port-connector { color: var(--port-sdi); }
.port[data-port-type="hdmi"] .port-connector { color: var(--port-hdmi); }
.port[data-port-type="xlr"] .port-connector { color: var(--port-xlr); }
.port[data-port-type="trs"] .port-connector { color: var(--port-trs); }
.port[data-port-type="rca"] .port-connector { color: var(--port-rca); }
.port[data-port-type="dante"] .port-connector { color: var(--port-dante); }
.port[data-port-type="aes"] .port-connector { color: var(--port-aes); }
.port[data-port-type="ethernet"] .port-connector { color: var(--port-ethernet); }
.port[data-port-type="usb"] .port-connector { color: var(--port-usb); }
.port[data-port-type="thunderbolt"] .port-connector { color: var(--port-thunderbolt); }
.port[data-port-type="displayport"] .port-connector { color: var(--port-displayport); }
.port[data-port-type="fiber"] .port-connector { color: var(--port-fiber); }
.port[data-port-type="bnc"] .port-connector { color: var(--port-bnc); }
.port[data-port-type="ultranet"] .port-connector { color: var(--port-ultranet); }
.port[data-port-type="madi"] .port-connector { color: var(--port-madi); }
.port[data-port-type="other"] .port-connector { color: var(--port-other); }

.outputs .port {
    flex-direction: row-reverse;
}

/* Port text container */
.port-text-container {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.port-name-text {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.port-label-text {
    color: var(--accent);
    font-weight: 400;
    font-style: italic;
    white-space: nowrap;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.port-label-text:empty {
    display: none;
}

.port-label-text:not(:empty)::before {
    content: '– ';
    color: var(--text-muted);
}

.port-label-input {
    background: var(--bg-dark);
    border: 1px solid var(--accent);
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 0.7rem;
    padding: 2px 6px;
    width: 80px;
    outline: none;
}

.port-label-input:focus {
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
}

.outputs .port-text-container {
    flex-direction: row-reverse;
}

/* ========================================
   MODALS
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-light);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.modal-content.modal-small {
    max-width: 400px;
}

.modal-content.modal-error {
    border-color: var(--error);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-error .modal-header h2 {
    color: var(--error);
}

.modal-close {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--bg-lighter);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer .btn-danger {
    margin-right: auto;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="color"],
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.form-group input[type="color"] {
    height: 44px;
    padding: 6px;
    cursor: pointer;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group select {
    cursor: pointer;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.modal-body h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.modal-body h3:first-of-type {
    margin-top: 0;
}

/* Ports Container in Modal */
.ports-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.port-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.port-row input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.8125rem;
}

.port-row select {
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.8125rem;
    cursor: pointer;
}

.btn-remove-port {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-remove-port:hover {
    border-color: var(--error);
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.btn-add-port {
    padding: 8px 16px;
    background: transparent;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-add-port:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-lighter);
    color: var(--text-primary);
}

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

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

/* Error List */
#errorList {
    list-style: none;
}

#errorList li {
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.1);
    border-left: 3px solid var(--error);
    border-radius: 0 8px 8px 0;
    margin-bottom: 8px;
    font-size: 0.875rem;
    color: var(--text-primary);
}

#errorList li:last-child {
    margin-bottom: 0;
}

/* ========================================
   CONTEXT MENU
   ======================================== */

.context-menu {
    position: fixed;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 0;
    min-width: 180px;
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    display: none;
}

.context-menu.active {
    display: block;
}

.context-menu-item {
    padding: 10px 16px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s;
}

.context-menu-item:hover {
    background: var(--primary);
    color: white;
}

.context-menu-item i {
    width: 16px;
    text-align: center;
}

.context-menu-divider {
    height: 1px;
    background: var(--border-color);
    margin: 6px 0;
}

/* ========================================
   CONNECTION LINES
   ======================================== */

.connection-line {
    fill: none;
    stroke-width: 3px;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.connection-line.valid {
    stroke: var(--success);
    cursor: pointer;
    transition: stroke-width 0.2s, filter 0.2s;
}

.connection-line.valid:hover {
    stroke-width: 5px;
}

.connection-line.selected {
    stroke-width: 5px;
    filter: drop-shadow(0 0 8px currentColor);
}

.connection-line.error {
    stroke: var(--error);
    stroke-dasharray: 8, 4;
}

.connection-line.warning {
    stroke: var(--warning);
}

.connection-line.temp {
    stroke: var(--primary);
    stroke-dasharray: 5, 5;
    opacity: 0.7;
}

/* ========================================
   CABLE COLOR MODAL
   ======================================== */

.color-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.color-preset {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}

.color-preset:hover {
    transform: scale(1.1);
    border-color: var(--text-primary);
}

.connection-info {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: var(--bg-lighter);
    border-radius: 4px;
    font-weight: 500;
}

#usePortTypeColor {
    margin-right: 8px;
}

/* ========================================
   SCROLLBAR
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-lighter);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal.active .modal-content {
    animation: slideIn 0.2s ease-out;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.hidden {
    display: none !important;
}

.no-select {
    user-select: none;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        z-index: 100;
        transition: left 0.3s;
    }
    
    .sidebar.open {
        left: 0;
    }
}