:root {
    --bg-primary: #18191c;
    --bg-secondary: #202225;
    --bg-tertiary: #2f3136;
    --bg-card: #25272b;
    --accent-red: #ef3340;
    --accent-red-hover: #d72834;
    --accent-green: #3ba55d;
    --accent-green-hover: #2d8249;
    --text-primary: #ffffff;
    --text-secondary: #b9bbbe;
    --text-muted: #72767d;
    --border-color: #36393f;
    --card-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    user-select: none;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header & Tabs */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
    height: 48px;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.5px;
}

.brand-icon {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--accent-red), #ff6b6b);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 900;
}

.brand-title {
    color: #fff;
}
.brand-title span {
    color: var(--accent-red);
}

.tab-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    overflow-x: auto;
}

.tab {
    background: transparent;
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.tab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab.active {
    background: var(--bg-tertiary);
    color: #fff;
    border-color: var(--border-color);
    font-weight: 500;
}

.tab-close {
    font-size: 14px;
    opacity: 0.6;
    border-radius: 50%;
    padding: 0 3px;
}

.tab-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
}

.header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
}

.status-dot.offline {
    background-color: var(--text-muted);
    box-shadow: none;
}

/* Main Layout */
.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px;
    overflow-y: auto;
    gap: 24px;
}

.desk-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* AnyDesk Style Cards */
.desk-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

.desk-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.desk-card.this-desk::before {
    background: var(--accent-red);
}

.desk-card.remote-desk::before {
    background: var(--accent-green);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.id-display-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.my-id-number {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 2px;
    color: #fff;
    font-variant-numeric: tabular-nums;
}

.btn-icon {
    background: var(--bg-tertiary);
    border: none;
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}

.btn-icon:hover {
    background: #3e4148;
}

.device-info-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.device-info-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Remote Desk Input */
.remote-input-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.remote-id-input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px 16px;
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 1.5px;
    outline: none;
    transition: border-color 0.2s;
    user-select: text;
}

.remote-id-input:focus {
    border-color: var(--accent-green);
}

.remote-id-input::placeholder {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: normal;
}

.btn-connect {
    background: var(--accent-green);
    border: none;
    border-radius: 8px;
    color: #fff;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background 0.15s;
}

.btn-connect:hover {
    background: var(--accent-green-hover);
}

.btn-connect:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Recent Sessions Section */
.recent-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--card-shadow);
}

.recent-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.recent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.recent-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.recent-card:hover {
    border-color: var(--accent-red);
    transform: translateY(-2px);
}

.recent-icon {
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.recent-details {
    display: flex;
    flex-direction: column;
}

.recent-id {
    font-weight: 700;
    font-size: 13px;
    color: #fff;
}

.recent-name {
    font-size: 11px;
    color: var(--text-muted);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 440px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: popIn 0.2s ease-out;
}

@keyframes popIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-red);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
}

.modal-body {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.permissions-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.permission-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
}

.permission-item input {
    accent-color: var(--accent-green);
    cursor: pointer;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.btn-modal {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    border: none;
    font-weight: 700;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: filter 0.15s;
}

.btn-modal.accept {
    background: var(--accent-green);
    color: #fff;
}

.btn-modal.reject {
    background: var(--accent-red);
    color: #fff;
}

.btn-modal:hover {
    filter: brightness(1.1);
}

/* Remote Viewer Container */
.remote-viewer-container {
    display: none;
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #000;
    flex-direction: column;
    z-index: 500;
}

.remote-viewer-container.active {
    display: flex;
}

.viewer-toolbar {
    height: 42px;
    background: rgba(32, 34, 37, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 600;
}

.viewer-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 600;
}

.viewer-tools {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-tool {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}

.btn-tool:hover {
    background: #42464d;
}

.btn-tool.danger {
    background: var(--accent-red);
    border-color: transparent;
}

.btn-tool.danger:hover {
    background: var(--accent-red-hover);
}

.viewer-screen-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    cursor: default;
}

#remoteVideo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    outline: none;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
}