/* smartLAB — Test Zone System CSS
   Modular zone-based layout for test pages */

/* ===== ZONE SYSTEM VARIABLES ===== */
:root {
    --zone-bg: rgba(15, 23, 42, 0.6);
    --zone-border: rgba(255, 255, 255, 0.08);
    --zone-border-hover: rgba(59, 130, 246, 0.4);
    --zone-radius: 12px;
    --zone-padding: 20px;
    --zone-gap: 16px;
    --zone-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== ZONE POSITION BADGE ===== */
.zone-pos-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 5px;
    font-size: 12px;
    flex-shrink: 0;
}

/* ===== ZONE CONTAINER ===== */
.zone-container {
    display: flex;
    flex-direction: column;
    gap: var(--zone-gap);
    margin-top: 20px;
}

.zone-row {
    display: flex;
    gap: var(--zone-gap);
    flex-wrap: wrap;
}

.zone-row.col-2 > .zone { flex: 1; min-width: 300px; }
.zone-row.col-3 > .zone { flex: 1; min-width: 250px; }
.zone-row.col-4 > .zone { flex: 1; min-width: 200px; }
.zone-row.col-1-2 > .zone:first-child { flex: 1; }
.zone-row.col-1-2 > .zone:last-child { flex: 2; }
.zone-row.col-2-1 > .zone:first-child { flex: 2; }
.zone-row.col-2-1 > .zone:last-child { flex: 1; }
.zone-row.col-1-3 > .zone:first-child { flex: 1; }
.zone-row.col-1-3 > .zone:last-child { flex: 3; }
.zone-row.col-3-1 > .zone:first-child { flex: 3; }
.zone-row.col-3-1 > .zone:last-child { flex: 1; }

/* ===== BASE ZONE ===== */
.zone {
    background: var(--zone-bg);
    border: 1px solid var(--zone-border);
    border-radius: var(--zone-radius);
    padding: var(--zone-padding);
    transition: var(--zone-transition);
    position: relative;
    overflow: hidden;
}

.zone:hover {
    border-color: var(--zone-border-hover);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.1);
}

.zone-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--zone-border);
}

.zone-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.zone-title-icon {
    font-size: 20px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.15);
    border-radius: 8px;
}

.zone-controls {
    display: flex;
    gap: 6px;
}

.zone-ctrl-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--zone-border);
    border-radius: 6px;
    background: rgba(30, 41, 59, 0.5);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: var(--zone-transition);
}

.zone-ctrl-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.zone-ctrl-btn.active {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.zone-body {
    min-height: 80px;
}

/* ===== ZONE TYPES ===== */

/* Video Zone */
.zone-video .zone-body {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16/9;
}

.zone-video video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.zone-video .video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-secondary);
    gap: 12px;
    transition: var(--zone-transition);
}

.zone-video .video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.zone-video .video-overlay-icon {
    font-size: 48px;
    opacity: 0.6;
}

.zone-video .video-overlay-text {
    font-size: 14px;
    font-weight: 500;
}

.zone-video .video-overlay-btn {
    padding: 10px 20px;
    background: var(--accent-blue);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--zone-transition);
}

.zone-video .video-overlay-btn:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

/* PDF Zone */
.zone-pdf .zone-body {
    min-height: 400px;
}

.zone-pdf .pdf-viewer {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: none;
    border-radius: 8px;
}

.zone-pdf .pdf-upload {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    border: 2px dashed var(--zone-border);
    border-radius: 8px;
    color: var(--text-secondary);
    gap: 12px;
    cursor: pointer;
    transition: var(--zone-transition);
}

.zone-pdf .pdf-upload:hover {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.05);
}

.zone-pdf .pdf-upload-icon {
    font-size: 48px;
    opacity: 0.6;
}

.zone-pdf .pdf-upload-text {
    font-size: 14px;
    font-weight: 500;
}

.zone-pdf .pdf-upload-hint {
    font-size: 12px;
    color: var(--text-muted);
}

/* Presentation Zone */
.zone-presentation .zone-body {
    min-height: 300px;
}

.zone-presentation .slides-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #0f172a;
    border-radius: 8px;
    overflow: hidden;
}

.zone-presentation .slide {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.zone-presentation .slide.active {
    display: flex;
}

.zone-presentation .slide-content {
    max-width: 80%;
}

.zone-presentation .slide-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.zone-presentation .slide-text {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.zone-presentation .slide-image {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.zone-presentation .slide-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.zone-presentation .slide-nav button {
    width: 36px;
    height: 36px;
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    background: rgba(30, 41, 59, 0.5);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: var(--zone-transition);
}

.zone-presentation .slide-nav button:hover {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

.zone-presentation .slide-counter {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Text/Explanation Zone */
.zone-text .zone-body {
    line-height: 1.7;
    color: var(--text-secondary);
    font-size: 14px;
}

.zone-text .zone-body h3 {
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 12px;
}

.zone-text .zone-body p {
    margin-bottom: 12px;
}

.zone-text .zone-body ul,
.zone-text .zone-body ol {
    margin-left: 20px;
    margin-bottom: 12px;
}

.zone-text .zone-body li {
    margin-bottom: 6px;
}

.zone-text .zone-body strong {
    color: var(--text-primary);
}

.zone-text .zone-body code {
    background: rgba(59, 130, 246, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--accent-blue);
}

/* Hardware Zone */
.zone-hardware .hw-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.zone-hardware .hw-item {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.zone-hardware .hw-icon {
    font-size: 24px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    flex-shrink: 0;
}

.zone-hardware .hw-info {
    flex: 1;
    min-width: 0;
}

.zone-hardware .hw-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.zone-hardware .hw-detail {
    font-size: 11px;
    color: var(--text-muted);
}

.zone-hardware .hw-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    flex-shrink: 0;
}

.zone-hardware .hw-status.online {
    background: var(--accent-emerald);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.zone-hardware .hw-status.offline {
    background: var(--accent-red);
}

/* Firmware Zone */
.zone-firmware .fw-layout {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.zone-firmware .fw-upload-area {
    flex: 1;
    min-width: 0;
}

.zone-firmware .fw-dropzone {
    border: 2px dashed var(--zone-border);
    border-radius: 8px;
    padding: 32px 20px;
    text-align: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--zone-transition);
}

.zone-firmware .fw-dropzone:hover,
.zone-firmware .fw-dropzone.dragover {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.05);
}

.zone-firmware .fw-dropzone-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.zone-firmware .fw-dropzone-text {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.zone-firmware .fw-dropzone-hint {
    font-size: 12px;
    color: var(--text-muted);
}

.zone-firmware .fw-file-info {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    margin-top: 12px;
}

.zone-firmware .fw-file-info.visible {
    display: flex;
}

.zone-firmware .fw-file-icon {
    font-size: 24px;
}

.zone-firmware .fw-file-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.zone-firmware .fw-file-size {
    font-size: 12px;
    color: var(--text-muted);
}

.zone-firmware .fw-file-remove {
    background: none;
    border: none;
    color: var(--accent-red);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
}

.zone-firmware .fw-status-panel {
    width: 280px;
    flex-shrink: 0;
}

.zone-firmware .fw-status-box {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    padding: 16px;
}

.zone-firmware .fw-status-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.zone-firmware .fw-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--zone-border);
    font-size: 12px;
}

.zone-firmware .fw-status-row:last-child {
    border-bottom: none;
}

.zone-firmware .fw-status-label {
    color: var(--text-muted);
}

.zone-firmware .fw-status-value {
    color: var(--text-primary);
    font-weight: 500;
}

.zone-firmware .fw-progress {
    width: 100%;
    height: 6px;
    background: rgba(30, 41, 59, 0.6);
    border-radius: 3px;
    margin-top: 12px;
    overflow: hidden;
}

.zone-firmware .fw-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 3px;
    width: 0%;
    transition: width 0.3s ease;
}

/* Custom Zone */
.zone-custom .zone-body {
    min-height: 100px;
}

/* ===== FLOATING CONTROLS BAR ===== */
.zone-float-bar {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    gap: 8px;
    z-index: 9990;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid var(--zone-border);
    border-radius: 12px;
    padding: 8px;
    -webkit-backdrop-filter:
backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.zone-float-btn {
    width: 44px;
    height: 44px;
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    background: rgba(30, 41, 59, 0.5);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--zone-transition);
    position: relative;
}

.zone-float-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.zone-float-btn.active {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.zone-float-btn .tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 12px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid var(--zone-border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.zone-float-btn:hover .tooltip {
    opacity: 1;
}

/* ===== ZONE EDITOR (Admin) ===== */
.zone-editor-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.zone-editor-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.zone-editor {
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    background: #0f172a;
    border: 1px solid var(--zone-border);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.zone-editor-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.zone-editor-close {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.zone-editor-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.zone-editor-field {
    margin-bottom: 16px;
}

.zone-editor-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.zone-editor-input {
    width: 100%;
    padding: 10px 14px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: var(--zone-transition);
}

.zone-editor-input:focus {
    border-color: var(--accent-blue);
}

.zone-editor-select {
    width: 100%;
    padding: 10px 14px;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--zone-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    cursor: pointer;
}

.zone-editor-row {
    display: flex;
    gap: 12px;
}

.zone-editor-row > .zone-editor-field {
    flex: 1;
}

.zone-editor-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--zone-border);
}

.zone-editor-btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--zone-border);
    transition: var(--zone-transition);
}

.zone-editor-btn-cancel {
    background: rgba(30, 41, 59, 0.5);
    color: var(--text-secondary);
}

.zone-editor-btn-save {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

.zone-editor-btn-save:hover {
    background: #2563eb;
}

/* ===== DRAG AND DROP ===== */
.zone.dragging {
    opacity: 0.5;
    border-style: dashed;
}

.zone.drag-over {
    border-color: var(--accent-blue);
    background: rgba(59, 130, 246, 0.05);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .zone-row.col-2,
    .zone-row.col-3,
    .zone-row.col-4,
    .zone-row.col-1-2,
    .zone-row.col-2-1,
    .zone-row.col-1-3,
    .zone-row.col-3-1 {
        flex-direction: column;
    }

    .zone-row.col-2 > .zone,
    .zone-row.col-3 > .zone,
    .zone-row.col-4 > .zone,
    .zone-row.col-1-2 > .zone,
    .zone-row.col-2-1 > .zone,
    .zone-row.col-1-3 > .zone,
    .zone-row.col-3-1 > .zone {
        min-width: 100%;
    }

    .zone-firmware .fw-layout {
        flex-direction: column;
    }

    .zone-firmware .fw-status-panel {
        width: 100%;
    }

    .zone-float-bar {
        bottom: 12px;
        right: 12px;
        padding: 6px;
    }

    .zone-float-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .zone {
        padding: 16px;
    }

    .zone-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .zone-title {
        font-size: 14px;
    }
}

/* ===== HIDDEN STATES ===== */
body.header-hidden #header-placeholder,
body.header-hidden .app-header {
    display: none !important;
}

body.header-hidden {
    padding-top: 0 !important;
}

body.footer-hidden #footer-placeholder,
body.footer-hidden .app-footer {
    display: none !important;
}

/* ===== ZONE ANIMATION ===== */
@keyframes zoneFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.zone {
    animation: zoneFadeIn 0.4s ease forwards;
}

.zone:nth-child(1) { animation-delay: 0s; }
.zone:nth-child(2) { animation-delay: 0.05s; }
.zone:nth-child(3) { animation-delay: 0.1s; }
.zone:nth-child(4) { animation-delay: 0.15s; }
.zone:nth-child(5) { animation-delay: 0.2s; }
.zone:nth-child(6) { animation-delay: 0.25s; }