/* PNTS Dashboard Stylesheet */
:root {
    --bg-main: #f4f6f9;
    --bg-card: #ffffff;
    --border-color: #dce1e8;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --green-reset: #059669;
    --green-reset-hover: #047857;
    --red-digital: #ff1e27;
    --red-digital-bg: #110505;
    --red-digital-glow: rgba(255, 30, 39, 0.45);
    --led-off: #475569;
    --led-on: #ffffff;
    --led-on-glow: 0 0 10px #ffffff, 0 0 18px rgba(255, 255, 255, 0.9);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    padding: 24px;
}

.dashboard-container {
    max-width: 1080px;
    margin: 0 auto;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-mark {
    background: #0f172a;
    color: #38bdf8;
    font-family: 'Orbitron', monospace, sans-serif;
    font-weight: 900;
    font-size: 1.1rem;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    letter-spacing: 1px;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.status-connected {
    background: #ecfdf5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

.status-connected .status-dot {
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
}

.status-disconnected {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.status-disconnected .status-dot {
    background: #ef4444;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* Device Bar */
.device-bar {
    background: var(--bg-card);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.add-device-form {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.form-label {
    font-size: 0.92rem;
    font-weight: 600;
    color: #374151;
}

.input-group {
    display: flex;
    gap: 8px;
    flex: 1;
    min-width: 280px;
}

.input-group input {
    flex: 1;
    padding: 9px 14px;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: 'Share Tech Mono', monospace, monospace;
    text-transform: uppercase;
    transition: border-color 0.2s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.device-count {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    background: #f1f5f9;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

/* Buttons */
.btn {
    padding: 9px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn:active {
    transform: translateY(1px);
}

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

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

.btn-secondary {
    background: #e2e8f0;
    color: #334155;
}

.btn-secondary:hover {
    background: #cbd5e1;
}

.btn-danger-outline {
    background: transparent;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

.btn-danger-outline:hover {
    background: #fee2e2;
}

/* Device Tabs */
.device-tabs-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.device-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.2s;
    user-select: none;
}

.device-tab:hover {
    border-color: #94a3b8;
    color: var(--text-main);
}

.device-tab.active {
    background: #ffffff;
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.tab-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #94a3b8;
}

.tab-status-dot.online {
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
}

.tab-close-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
}

.tab-close-btn:hover {
    color: #dc2626;
}

/* Device View & Info */
.device-view {
    min-height: 480px;
}

.empty-state {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 2px dashed #cbd5e1;
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.empty-state h2 {
    font-size: 1.3rem;
    color: var(--text-main);
    margin-bottom: 8px;
}

.device-info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
    gap: 12px;
}

.device-info-meta {
    display: flex;
    align-items: center;
    gap: 14px;
}

.device-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.device-mac {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.95rem;
    color: #475569;
    background: #f1f5f9;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.status-badge {
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    background: #f1f5f9;
    color: #64748b;
}

.status-badge.online {
    background: #ecfdf5;
    color: #059669;
}

.device-actions {
    display: flex;
    gap: 10px;
}

/* Displays Stack / Grid */
.displays-grid {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* Display Card - Active State */
.display-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 18px 24px;
    transition: all 0.25s ease;
}

.display-card.active-card {
    border-left: 6px solid #10b981;
}

.display-card-content {
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
}

/* Left: Display + Steppers Block (matches PDF layout) */
.display-stepper-block {
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.digital-display-box {
    background: var(--red-digital-bg);
    border: 2px solid #331111;
    border-radius: var(--radius-sm);
    width: 140px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 14px rgba(0, 0, 0, 0.8), 0 2px 6px rgba(0, 0, 0, 0.15);
}

.digital-number {
    font-family: 'Orbitron', 'Share Tech Mono', monospace, sans-serif;
    font-size: 2.75rem;
    font-weight: 900;
    color: var(--red-digital);
    text-shadow: 0 0 10px var(--red-digital-glow);
    letter-spacing: 2px;
    user-select: none;
    cursor: pointer;
}

/* Stepper Buttons (+ / -) */
.stepper-column {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.btn-stepper {
    width: 42px;
    height: 42px;
    background: #ffffff;
    border: 2px solid #94a3b8;
    border-radius: var(--radius-sm);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: all 0.15s ease;
    color: #1e293b;
}

.btn-stepper:hover {
    background: #f8fafc;
    border-color: #475569;
    transform: scale(1.05);
}

.btn-stepper:active {
    background: #e2e8f0;
    transform: scale(0.96);
}

/* Port label under display */
.port-sublabel {
    margin-top: 6px;
    font-size: 0.82rem;
    font-weight: 700;
    color: #64748b;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Middle: Notes & Reset Button Block (matches PDF layout) */
.notes-reset-block {
    flex: 1;
    min-width: 240px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.note-input-wrapper {
    position: relative;
    width: 100%;
}

.note-input {
    width: 100%;
    padding: 10px 48px 10px 14px;
    border: 2px solid #cbd5e1;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

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

.char-counter {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    color: #94a3b8;
    pointer-events: none;
}

.btn-reset {
    width: 100%;
    max-width: 160px;
    background: var(--green-reset);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    padding: 11px 20px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 2px 4px rgba(5, 150, 105, 0.3);
}

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

.btn-reset:active {
    transform: scale(0.98);
}

/* Right: Indicator LEDs (LED1, LED2, LED3, LED4) Block */
.led-indicators-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: #0f172a;
    border-radius: var(--radius-md);
    min-width: 200px;
}

.led-strip-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.led-dots-row {
    display: flex;
    gap: 16px;
}

.led-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.led-indicator-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--led-off);
    border: 2px solid #1e293b;
    transition: all 0.25s ease;
}

.led-indicator-dot.active {
    background-color: var(--led-on);
    box-shadow: var(--led-on-glow);
    border-color: #ffffff;
}

.led-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: #cbd5e1;
    font-family: 'Share Tech Mono', monospace;
}

/* Display Card - Inactive / Empty State (per hot-plug requirement) */
.display-card.empty-card {
    background: #fafbfc;
    border: 2px dashed #cbd5e1;
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: none;
    opacity: 0.85;
}

.empty-card-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.empty-card-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.empty-port-badge {
    font-size: 0.85rem;
    font-weight: 700;
    color: #64748b;
    background: #e2e8f0;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.5px;
}

.empty-message {
    font-size: 0.92rem;
    color: #94a3b8;
    font-weight: 500;
}

.empty-card-right {
    font-size: 0.8rem;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-dialog {
    background: var(--bg-card);
    width: 90%;
    max-width: 520px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close-btn {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: #64748b;
    cursor: pointer;
}

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.rule-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: #f8fafc;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid #e2e8f0;
}

.rule-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #334155;
}

.rule-static-info {
    font-size: 0.88rem;
    color: #64748b;
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: #475569;
}

.range-inputs input {
    width: 75px;
    padding: 6px 10px;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    text-align: center;
}

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: #f8fafc;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 12px;
    }
    .display-card-content {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    .display-stepper-block {
        justify-content: center;
    }
    .btn-reset {
        max-width: 100%;
    }
    .led-indicators-block {
        width: 100%;
    }
}