/* ==========================================================================
   VINKLA — Brand & UI Design System
   Identity: "Geometría de Proximidad" (Swiss Industrial + Technical Brutalism)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* Paleta Principal Vinkla */
    --vinkla-carbon: #0A0B0E;       /* Fondo principal (Dark Mode Default) */
    --vinkla-surface: #14161B;      /* Fondo de tarjetas / Bento containers */
    --vinkla-surface-hover: #1A1D24;
    --vinkla-surface-subtle: #0E1015;
    --vinkla-border: #23262F;       /* Líneas de separación sutiles (1px) */
    --vinkla-border-hover: #333846;
    --vinkla-muted: #94A3B8;        /* Texto secundario / Metadatos */
    --vinkla-light: #F3F4F6;        /* Gris Técnico (Texto principal y fondos claros) */

    /* Acentos de Acción y Estado */
    --vinkla-ignition: #FF4400;     /* Naranja Ignición (CTAs, Tap Targets, Acentos) */
    --vinkla-ignition-hover: #FF5511;
    --vinkla-lime: #D4FF00;         /* Lima Eléctrico (Telemetría activa / 13.56 MHz) */
    --vinkla-success: #10B981;      /* Verde Éxito (Confirmaciones, toasts y estados semánticos OK) */

    /* Semantic Compatibility Aliases */
    --color-bg: var(--vinkla-carbon);
    --color-surface: var(--vinkla-surface);
    --color-text: var(--vinkla-light);
    --color-text-muted: var(--vinkla-muted);
    --color-primary: var(--vinkla-ignition);
    --color-primary-hover: var(--vinkla-ignition-hover);
    --color-border: var(--vinkla-border);
    --color-success: var(--vinkla-success);
    --color-warning: #FFB800;
    --color-danger: #FF4D4D;

    /* Geometría Técnica Moderna y Suave (4px a 8px) */
    --radius: 6px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* Tipografía */
    --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Curva de Animación (Golpe Magnético Seco) */
    --ease-magnetic: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Typography */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--vinkla-carbon);
    color: var(--vinkla-light);
    font-family: var(--font-sans);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--vinkla-light);
}

code, kbd, samp, pre, .font-mono {
    font-family: var(--font-mono);
}

a {
    color: var(--vinkla-ignition);
    text-decoration: none;
    transition: color 0.15s var(--ease-magnetic);
}

a:hover {
    color: var(--vinkla-ignition-hover);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.app-header {
    background: var(--vinkla-carbon);
    border-bottom: 1px solid var(--vinkla-border);
    padding: 0.85rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--vinkla-light);
}

.brand-logo-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius);
    flex-shrink: 0;
    display: block;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--vinkla-light);
}

.brand-sub {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--vinkla-ignition);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--vinkla-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.15s var(--ease-magnetic);
}

.nav-links a:hover {
    color: var(--vinkla-light);
}

.inline-form {
    display: inline;
    margin: 0;
    padding: 0;
}

.btn-link {
    background: none;
    border: none;
    color: var(--vinkla-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 0.15s var(--ease-magnetic);
}

.btn-link:hover {
    color: var(--color-danger);
}

.app-container {
    flex: 1;
    max-width: 1240px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.app-footer {
    border-top: 1px solid var(--vinkla-border);
    background: var(--vinkla-carbon);
    padding: 1.25rem 1.5rem;
    text-align: center;
    color: var(--vinkla-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.02em;
}

/* ==========================================================================
   Bento Cards & Containers (Zero blurred shadows, exposed 1px grid)
   ========================================================================== */

.card {
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
}

.page-header .subtitle,
.subtitle {
    color: var(--vinkla-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* ==========================================================================
   Buttons & Interactive Elements (Clean Affordance & Shadows)
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    box-shadow: none;
    transition: all 0.18s var(--ease-magnetic);
}

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

.btn-primary {
    background-color: var(--vinkla-ignition);
    border-color: var(--vinkla-ignition);
    color: #0A0A0A;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(255, 68, 0, 0.25);
}

.btn-primary:hover {
    background-color: var(--vinkla-ignition-hover);
    border-color: var(--vinkla-ignition-hover);
    color: #000000;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(255, 68, 0, 0.35);
}

.btn-secondary {
    background-color: #1A1C20;
    border-color: #2E323B;
    color: var(--vinkla-light);
}

.btn-secondary:hover {
    background-color: #24272E;
    border-color: #404552;
    color: #FFFFFF;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: #261114;
    border-color: #4D1A20;
    color: #FF6666;
}

.btn-danger:hover {
    background-color: #38151A;
    color: #FF8888;
}

.btn-success {
    background-color: #122410;
    border-color: #21471D;
    color: var(--vinkla-success);
}

.btn-success:hover {
    background-color: #1B3618;
}

.btn-warning {
    background-color: #241A0B;
    border-color: #4D3715;
    color: #FFB800;
}

.btn-warning:hover {
    background-color: #33250F;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

/* Copy Button */
.btn-copy {
    white-space: nowrap;
}

/* ==========================================================================
   Forms & Controls
   ========================================================================== */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
    color: var(--vinkla-muted);
}

.form-control {
    width: 100%;
    padding: 0.65rem 0.85rem;
    font-size: 0.95rem;
    border: 1px solid #D1D5DB;
    border-radius: var(--radius);
    background: #FFFFFF;
    color: #000000;
    box-shadow: none;
    transition: border-color 0.15s var(--ease-magnetic);
}

.form-control::placeholder {
    color: #6B7280;
    opacity: 1;
}

.form-control:focus {
    outline: none;
    border-color: var(--vinkla-ignition);
    box-shadow: 0 0 0 3px rgba(255, 68, 0, 0.25);
    background: #FFFFFF;
    color: #000000;
}

.form-help {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.8rem;
    color: var(--vinkla-muted);
}

.form-wrapper {
    max-width: 680px;
    margin: 0 auto;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.flex-1 {
    flex: 1;
}

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

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.required {
    color: var(--vinkla-ignition);
}

/* Search Bar */
.search-bar-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-input-box {
    position: relative;
    flex: 1;
    max-width: 480px;
}

.search-input-box .search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.95rem;
    color: var(--vinkla-muted);
    pointer-events: none;
}

.quick-search-input {
    padding-left: 2.35rem !important;
    border-radius: var(--radius) !important;
    background: #FFFFFF !important;
    border: 1px solid #D1D5DB !important;
    color: #000000 !important;
}

.quick-search-input::placeholder {
    color: #6B7280 !important;
    opacity: 1;
}

.quick-search-input:focus {
    background: #FFFFFF !important;
    border-color: var(--vinkla-ignition) !important;
    color: #000000 !important;
}

/* ==========================================================================
   Data Tables (Industrial High Contrast)
   ========================================================================== */

.table-container {
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
    box-shadow: none;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th {
    background: #111111;
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--vinkla-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--vinkla-border);
}

.data-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--vinkla-border);
    color: var(--vinkla-light);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: var(--vinkla-surface-hover);
}

/* ==========================================================================
   Badges & Pills (Swiss Monospace Precision)
   ========================================================================== */

.badge {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid transparent;
}

.badge-success {
    background-color: #122410;
    color: var(--vinkla-success);
    border-color: #21471D;
}

.badge-muted, .badge-secondary {
    background-color: #1C1C1C;
    color: var(--vinkla-muted);
    border-color: #2B2B2B;
}

.badge-danger {
    background-color: #2B1214;
    color: #FF6666;
    border-color: #522025;
}

.badge-warning {
    background-color: #281D0B;
    color: #FFB800;
    border-color: #4F3815;
}

.device-pill {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.device-pill.card {
    background: #1F1914;
    color: var(--vinkla-ignition);
    border: 1px solid rgba(255, 68, 0, 0.35);
}

.device-pill.stand {
    background: #121E2A;
    color: #38BDF8;
    border: 1px solid rgba(56, 189, 248, 0.35);
}

/* Alerts */
.alert {
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
}

.alert-danger {
    background-color: #210F11;
    border-color: #4D1A20;
    color: #FF8888;
}

.alert-success {
    background-color: #0F2113;
    border-color: #1D4724;
    color: var(--vinkla-success);
}

/* Callouts */
.callout {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin: 1.25rem 0;
    font-size: 0.9rem;
    border: 1px solid var(--vinkla-border);
}

.callout-info {
    background-color: #111A24;
    border-left: 3px solid #38BDF8;
    color: #BAE6FD;
}

.callout-info p {
    margin-top: 0.25rem;
    color: #93C5FD;
}

/* Dynamic URL Box & QR */
.dynamic-url-box {
    margin: 1.5rem 0;
    padding: 1.25rem;
    background: #111111;
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
}

.url-bar {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.url-input {
    font-family: var(--font-mono);
    background: #FFFFFF;
    font-size: 0.85rem;
    color: #000000;
    border: 1px solid #D1D5DB;
}

.destination-card {
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
}

.status-box {
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--vinkla-border);
}

.status-buttons {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

.status-buttons .btn.active {
    outline: 2px solid var(--vinkla-ignition);
    outline-offset: 1px;
    font-weight: 700;
}

.qr-card {
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
}

.qr-container {
    align-items: center;
    gap: 1.5rem;
}

.qr-info {
    flex: 1;
}

.qr-target-text {
    margin-top: 0.35rem;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.qr-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

.qr-preview-box {
    background: #FFFFFF;
    padding: 0.5rem;
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-img {
    display: block;
    border-radius: 2px;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--vinkla-border);
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--vinkla-muted);
    margin-bottom: 0.25rem;
}

.info-value {
    font-weight: 600;
    color: var(--vinkla-light);
}

/* Hardware Spec Preview Card */
.hardware-spec-card {
    margin-top: 1.5rem;
    padding: 1.25rem 1.5rem;
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
}

.hardware-preview-box {
    margin-top: 1rem;
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
    background: #111111;
    overflow: hidden;
}

.hardware-spec-img {
    display: block;
    width: 100%;
    height: auto;
}

/* ==========================================================================
   Executive Pro Dashboard (Bento Grid)
   ========================================================================== */

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

.dashboard-header {
    margin-bottom: 0.5rem;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 1rem;
}

.period-segmenter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.segmenter-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--vinkla-muted);
    text-transform: uppercase;
}

.segmented-control {
    display: inline-flex;
    background: #101215;
    border: 1px solid var(--vinkla-border);
    padding: 3px;
    border-radius: var(--radius-md);
    gap: 3px;
}

.segment-btn {
    padding: 0.45rem 0.85rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--vinkla-muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.15s var(--ease-magnetic);
}

.segment-btn:hover {
    color: var(--vinkla-light);
    background: #1A1C22;
}

.segment-btn.active {
    background: #0284C7;
    color: #FFFFFF;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.pro-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
}

.pro-stat-card {
    padding: 1.35rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius-md);
}

.pro-stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.pro-stat-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--vinkla-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pro-stat-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--vinkla-border);
}

.icon-blue {
    background-color: #121A26;
    color: #38BDF8;
}

.icon-purple {
    background-color: #1E162A;
    color: #A855F7;
}

.icon-emerald {
    background-color: #122410;
    color: var(--vinkla-lime);
}

.icon-amber {
    background-color: #241A0B;
    color: var(--vinkla-ignition);
}

.pro-stat-value {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.05;
    color: var(--vinkla-light);
    margin-bottom: 0.5rem;
}

.pro-stat-meta {
    font-size: 0.8rem;
    color: var(--vinkla-muted);
}

/* Analytics Row */
.analytics-visual-grid {
    display: grid;
    grid-template-columns: 2fr 1.2fr;
    gap: 1.25rem;
}

@media (max-width: 900px) {
    .analytics-visual-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    padding: 1.35rem 1.5rem;
}

.chart-legend {
    display: flex;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius);
}

.dot-nfc {
    background-color: var(--vinkla-ignition);
}

.dot-qr {
    background-color: #F2F2EE;
}

.bar-chart-container {
    margin-top: 1.5rem;
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.bar-chart-plot {
    height: 100%;
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    border-bottom: 1px solid var(--vinkla-border);
    padding-bottom: 0.25rem;
}

.bar-col {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    position: relative;
    cursor: pointer;
}

.bar-track {
    width: 100%;
    max-width: 44px;
    height: 100%;
    display: flex;
    align-items: flex-end;
    background: #111111;
    border: 1px solid #1E1E1E;
    border-radius: var(--radius) var(--radius) 0 0;
}

.bar-fill {
    width: 100%;
    background: var(--vinkla-ignition);
    border-radius: var(--radius) var(--radius) 0 0;
    position: relative;
    transition: height 0.3s var(--ease-magnetic), filter 0.15s ease;
    min-height: 4px;
}

.bar-col:hover .bar-fill {
    filter: brightness(1.2);
}

.bar-segment-qr {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: #F2F2EE;
    border-radius: var(--radius) var(--radius) 0 0;
}

.bar-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--vinkla-muted);
    margin-top: 0.5rem;
    white-space: nowrap;
}

.bar-col-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    background: #000000;
    border: 1px solid var(--vinkla-ignition);
    color: var(--vinkla-light);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.4rem 0.65rem;
    border-radius: var(--radius);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateY(4px);
    transition: opacity 0.15s var(--ease-magnetic), transform 0.15s var(--ease-magnetic);
    z-index: 10;
}

.bar-col:hover .bar-col-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* Channel Breakdown */
.channel-breakdown-card {
    padding: 1.35rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.ratio-progress-wrapper {
    margin: 1.25rem 0;
}

.ratio-progress-bar {
    height: 12px;
    background: #111111;
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
}

.ratio-segment-nfc {
    background: var(--vinkla-ignition);
    height: 100%;
    transition: width 0.3s var(--ease-magnetic);
}

.ratio-segment-qr {
    background: #F2F2EE;
    height: 100%;
    transition: width 0.3s var(--ease-magnetic);
}

.ratio-labels {
    margin-top: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--vinkla-muted);
}

.channel-cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.channel-mini-card {
    padding: 0.85rem;
    border-radius: var(--radius);
    border: 1px solid var(--vinkla-border);
    background: #121212;
}

.channel-nfc {
    border-left: 3px solid var(--vinkla-ignition);
}

.channel-qr {
    border-left: 3px solid #F2F2EE;
}

.channel-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--vinkla-muted);
    text-transform: uppercase;
}

.channel-count {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    margin: 0.2rem 0;
    color: var(--vinkla-light);
}

.channel-footer-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--vinkla-border);
    color: var(--vinkla-muted);
}

/* Recent Activity & Empty States */
.recent-activity-card {
    padding: 1.35rem 1.5rem;
}

.empty-state-mini {
    padding: 2.5rem 1rem;
    text-align: center;
    color: var(--vinkla-muted);
    font-size: 0.9rem;
}

.empty-icon-sm {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

.quick-actions-card {
    padding: 1.25rem 1.5rem;
    background: #111111;
    border: 1px solid var(--vinkla-border);
}

/* ==========================================================================
   Auth / Login Screen (Swiss Technical Minimalist)
   ========================================================================== */

.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem 0;
}

.auth-card {
    background: var(--vinkla-surface);
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: none;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo-img {
    width: 48px;
    height: 48px;
    margin: 0 auto 0.75rem auto;
    display: block;
    border-radius: var(--radius);
}

.auth-header h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--vinkla-light);
    margin-bottom: 0.25rem;
}

.auth-header p {
    font-family: var(--font-mono);
    color: var(--vinkla-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.text-success {
    color: var(--vinkla-success);
}

.text-primary {
    color: var(--vinkla-ignition);
}

.text-muted {
    color: var(--vinkla-muted);
}

.text-truncate {
    display: inline-block;
    max-width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    vertical-align: middle;
}

.breadcrumb {
    margin-bottom: 1.25rem;
}

.breadcrumb a {
    color: var(--vinkla-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.03em;
}

.breadcrumb a:hover {
    color: var(--vinkla-ignition);
}

.title-with-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ==========================================================================
   Mobile Navigation & Drawer (Base Desktop State)
   ========================================================================== */

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--vinkla-border);
    border-radius: var(--radius);
    color: var(--vinkla-light);
    cursor: pointer;
    padding: 0.5rem;
    align-items: center;
    justify-content: center;
    transition: all 0.15s var(--ease-magnetic);
}

.mobile-menu-btn .close-icon {
    display: none;
}

.mobile-menu-btn.is-active {
    background: #1C1C1C;
    border-color: var(--vinkla-ignition);
    color: var(--vinkla-ignition);
}

.mobile-menu-btn.is-active .hamburger-icon {
    display: none;
}

.mobile-menu-btn.is-active .close-icon {
    display: block;
}

.mobile-nav-drawer {
    display: none;
}

.filters-header-mobile {
    display: none;
}

.url-actions-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.qr-download-pair {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */

/* Tablet & Mobile Screens (< 768px) */
@media (max-width: 768px) {
    /* Layout & Containers */
    .app-header {
        padding: 0.75rem 1rem;
        position: relative;
    }

    .brand-name {
        font-size: 1.1rem;
    }

    .nav-links {
        display: none; /* Replaced by mobile menu */
    }

    .mobile-menu-btn {
        display: flex;
        width: 42px;
        height: 42px;
    }

    .mobile-nav-drawer {
        display: none;
        width: 100%;
        background: var(--vinkla-surface);
        border-bottom: 1px solid var(--vinkla-border);
        padding: 1.25rem 1rem;
        animation: dropFadeIn 0.2s var(--ease-magnetic);
    }

    .mobile-nav-drawer.is-open {
        display: block;
    }

    @keyframes dropFadeIn {
        from {
            opacity: 0;
            transform: translateY(-8px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .mobile-nav-links {
        display: flex;
        flex-direction: column;
        gap: 0.6rem;
    }

    .mobile-nav-link {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.85rem 1rem;
        background: #111111;
        border: 1px solid var(--vinkla-border);
        border-radius: var(--radius);
        color: var(--vinkla-light);
        font-family: var(--font-mono);
        font-size: 0.9rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        min-height: 46px;
        transition: all 0.15s var(--ease-magnetic);
    }

    .mobile-nav-link:hover,
    .mobile-nav-link:active {
        background: #1A1A1A;
        border-color: var(--vinkla-ignition);
        color: #FFFFFF;
    }

    .mobile-nav-tag {
        color: var(--vinkla-ignition);
        font-size: 0.78rem;
    }

    .mobile-nav-divider {
        height: 1px;
        background: var(--vinkla-border);
        margin: 0.5rem 0;
    }

    .mobile-logout-form button {
        min-height: 46px;
        font-family: var(--font-mono);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        font-size: 0.85rem;
    }

    .app-container {
        margin: 1.25rem auto;
        padding: 0 1rem;
    }

    .app-footer {
        padding: 1rem;
        font-size: 0.75rem;
    }

    /* Page Header in Mobile */
    .page-header.flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .page-header.flex-between .btn {
        width: 100%;
        min-height: 44px;
    }

    /* Collapsible Filters Accordion */
    .filters-header-mobile {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .filters-mobile-title {
        font-family: var(--font-mono);
        font-size: 0.8rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--vinkla-muted);
    }

    .filters-toggle-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        min-height: 38px;
    }

    .filters-chevron {
        display: inline-block;
        transition: transform 0.2s var(--ease-magnetic);
    }

    .filters-toggle-btn.is-open .filters-chevron {
        transform: rotate(180deg);
    }

    .filters-form {
        display: none;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--vinkla-border);
    }

    .filters-form.is-open {
        display: block;
    }

    .filters-form .form-row {
        flex-direction: column;
        gap: 0.85rem;
    }

    .filter-reset-group {
        margin-top: 0.25rem;
    }

    .filter-reset-group .btn {
        width: 100%;
        min-height: 42px;
    }

    /* Search Bar in Mobile */
    .search-bar-wrapper {
        flex-direction: column;
        align-items: stretch;
        gap: 0.65rem;
    }

    .search-input-box {
        max-width: 100%;
        width: 100%;
    }

    .quick-search-input {
        min-height: 44px;
        font-size: 0.95rem;
    }

    #devicesCountBadge {
        align-self: flex-start;
    }

    /* Adaptive Cards Layout for Data Tables */
    .table-container {
        background: transparent;
        border: none;
        overflow: visible;
    }

    .data-table,
    .data-table tbody,
    .data-table tr,
    .data-table td {
        display: block;
        width: 100%;
    }

    .data-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        border: 0;
    }

    .data-table tbody tr {
        background: var(--vinkla-surface);
        border: 1px solid var(--vinkla-border);
        border-radius: var(--radius-md);
        margin-bottom: 0.85rem;
        padding: 1rem;
        display: flex;
        flex-direction: column;
        gap: 0.45rem;
        box-shadow: none;
    }

    .data-table tbody tr:hover {
        background: #181818;
        border-color: var(--vinkla-border-hover);
    }

    .data-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.35rem 0;
        border: none;
        border-bottom: 1px solid #1C1C1C;
        font-size: 0.88rem;
    }

    .data-table td:last-child {
        border-bottom: none;
        padding-top: 0.65rem;
    }

    .data-table td::before {
        content: attr(data-label);
        font-family: var(--font-mono);
        font-size: 0.72rem;
        font-weight: 700;
        color: var(--vinkla-muted);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        padding-right: 0.75rem;
        flex-shrink: 0;
    }

    .table-action-cell {
        justify-content: flex-end;
        padding-top: 0.75rem !important;
    }

    .btn-table-action {
        width: 100%;
        min-height: 42px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-mono);
        text-transform: uppercase;
        font-size: 0.82rem;
        letter-spacing: 0.05em;
        background: #1A1A1A;
        border: 1px solid var(--vinkla-border);
    }

    .text-truncate {
        max-width: 180px;
    }

    /* Device Detail View in Mobile */
    .detail-header-card .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 1.25rem;
    }

    .title-with-badge {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .detail-header-actions {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
    }

    .btn-destination-cta {
        width: 100%;
        min-height: 46px;
        font-size: 0.95rem;
    }

    .qr-download-pair {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        width: 100%;
    }

    .qr-download-pair .btn {
        min-height: 42px;
        font-size: 0.85rem;
    }

    .url-bar {
        flex-direction: column;
        gap: 0.65rem;
        width: 100%;
    }

    .url-input {
        min-height: 44px;
        width: 100%;
        font-size: 0.85rem;
    }

    .url-actions-row {
        display: grid;
        grid-template-columns: 1.2fr 1fr 1fr;
        gap: 0.5rem;
        width: 100%;
    }

    .url-actions-row .btn {
        min-height: 42px;
        font-size: 0.8rem;
        padding: 0.4rem 0.25rem;
    }

    .qr-card .qr-container {
        flex-direction: column-reverse;
        align-items: stretch;
        text-align: center;
        gap: 1.25rem;
    }

    .qr-preview-box {
        margin: 0 auto;
        width: 150px;
        height: 150px;
    }

    .qr-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        width: 100%;
    }

    .qr-actions .btn {
        min-height: 42px;
    }

    .qr-actions .btn:last-child {
        grid-column: span 2;
    }

    .status-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        width: 100%;
    }

    .status-buttons .btn {
        min-height: 44px;
        font-size: 0.85rem;
    }

    .info-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .hardware-spec-card .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .hardware-spec-card .action-buttons {
        width: 100%;
    }

    .hardware-spec-card .action-buttons .btn {
        width: 100%;
        min-height: 42px;
    }

    /* Dashboard Pro in Mobile */
    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .period-segmenter {
        flex-direction: column;
        align-items: stretch;
        gap: 0.4rem;
        width: 100%;
    }

    .segmented-control {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
    }

    .segment-btn {
        text-align: center;
        padding: 0.55rem 0.25rem;
        font-size: 0.78rem;
        min-height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .pro-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.85rem;
    }

    .pro-stat-value {
        font-size: 1.85rem;
    }

    .analytics-visual-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .bar-chart-container {
        height: 180px;
    }

    .bar-col-tooltip {
        display: none !important;
    }

    .channel-cards-row {
        grid-template-columns: 1fr 1fr;
        gap: 0.65rem;
    }

    .quick-actions-card .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .quick-actions-card .action-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        width: 100%;
    }

    .quick-actions-card .action-buttons .btn {
        min-height: 44px;
        font-size: 0.85rem;
    }

    /* Form Layouts in Mobile */
    .form-wrapper {
        max-width: 100%;
        width: 100%;
    }

    .form-row {
        flex-direction: column;
        gap: 0.85rem;
    }

    .form-control {
        min-height: 44px;
        font-size: 1rem; /* Prevent auto-zoom in mobile Safari */
    }

    .form-actions {
        flex-direction: column-reverse;
        gap: 0.65rem;
        width: 100%;
    }

    .form-actions .btn {
        width: 100%;
        min-height: 46px;
    }

    .auth-wrapper {
        padding: 1.5rem 0;
    }

    .auth-card {
        padding: 2rem 1.25rem;
        border-radius: var(--radius);
    }
}

/* Small Smartphone Screens (< 480px) */
@media (max-width: 480px) {
    .brand-name {
        font-size: 1.05rem;
    }

    .pro-stats-grid {
        grid-template-columns: 1fr;
    }

    .channel-cards-row {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .url-actions-row {
        grid-template-columns: 1fr;
    }

    .quick-actions-card .action-buttons {
        grid-template-columns: 1fr;
    }

    .qr-download-pair {
        grid-template-columns: 1fr;
    }

    .qr-actions {
        grid-template-columns: 1fr;
    }

    .qr-actions .btn:last-child {
        grid-column: span 1;
    }

    .status-buttons {
        grid-template-columns: 1fr;
    }
}