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

:root {
    /* Black & White Color Palette */
    --color-black: #000000;
    --color-gray-900: #1a1a1a;
    --color-gray-800: #2d2d2d;
    --color-gray-700: #404040;
    --color-gray-600: #666666;
    --color-gray-500: #808080;
    --color-gray-400: #999999;
    --color-gray-300: #cccccc;
    --color-gray-200: #e5e5e5;
    --color-gray-100: #f5f5f5;
    --color-white: #ffffff;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-black);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

/* ===================================
   Container & Layout
   =================================== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Header
   =================================== */
.header {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    border-bottom: 2px solid var(--color-gray-900);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.tagline {
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
    margin-top: var(--spacing-xs);
}

/* ===================================
   Main Content
   =================================== */
.main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-gray-100);
}

.layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-lg);
    position: relative;
}

.main-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ===================================
   Bento Cards
   =================================== */
.bento-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.bento-card:hover {
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-md);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-gray-200);
}

.section-header i {
    width: 24px;
    height: 24px;
    color: var(--color-black);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

/* ===================================
   Input Section
   =================================== */
.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.input-group label {
    font-weight: 500;
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
}

textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    resize: vertical;
    transition: border-color var(--transition-fast);
}

textarea:focus {
    outline: none;
    border-color: var(--color-black);
}

.button-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.btn i {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background-color: var(--color-gray-900);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-gray-700);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

/* ===================================
   Output Section
   =================================== */
.video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    background-color: var(--color-gray-100);
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-lg);
    color: var(--color-gray-500);
    gap: var(--spacing-sm);
}

.video-placeholder i {
    width: 48px;
    height: 48px;
}

.output-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

/* ===================================
   Status Grid
   =================================== */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.status-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
}

.card-icon i {
    width: 32px;
    height: 32px;
    color: var(--color-black);
}

.status-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.status-value {
    margin: var(--spacing-sm) 0;
}

.status-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.status-badge.status-success {
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

.status-badge.status-info {
    background-color: var(--color-gray-200);
    color: var(--color-gray-900);
}

.status-badge.status-warning {
    background-color: var(--color-gray-700);
    color: var(--color-white);
}

.status-badge.status-error {
    background-color: var(--color-black);
    color: var(--color-white);
}

.status-detail {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ===================================
   Sidebar
   =================================== */
.sidebar {
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    height: fit-content;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    position: sticky;
    top: var(--spacing-lg);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-gray-200);
}

.sidebar-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.sidebar-header i {
    width: 20px;
    height: 20px;
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--color-gray-600);
}

.sidebar-close:hover {
    color: var(--color-black);
}

.sidebar-toggle {
    display: none;
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    background-color: var(--color-black);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-xl);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle i {
    width: 24px;
    height: 24px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    color: var(--color-gray-500);
    gap: var(--spacing-sm);
}

.empty-state i {
    width: 48px;
    height: 48px;
}

/* Process Steps */
.process-step {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background-color: var(--color-gray-100);
    border-left: 3px solid var(--color-black);
    border-radius: var(--radius-md);
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.step-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-black);
}

.step-status {
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: var(--radius-sm);
}

.step-content {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    line-height: 1.5;
}

.step-detail {
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-xs);
    border-top: 1px solid var(--color-gray-300);
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
}

.attribution-list {
    list-style: none;
    margin-top: var(--spacing-xs);
}

.attribution-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-xs);
}

.attribution-name {
    font-weight: 500;
}

.attribution-percent {
    color: var(--color-gray-600);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: var(--font-size-sm);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 90%;
        max-width: 400px;
        height: 100vh;
        max-height: 100vh;
        z-index: 1000;
        transition: right var(--transition-base);
        border-radius: 0;
        border-right: none;
    }

    .sidebar.active {
        right: 0;
    }

    .sidebar-close {
        display: block;
    }

    .sidebar-toggle {
        display: flex;
    }

    .sidebar-toggle.hidden {
        display: none;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .logo {
        font-size: var(--font-size-2xl);
    }

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

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .contamination-overview {
        grid-template-columns: 1fr;
    }

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

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

.fade-in {
    animation: fadeIn var(--transition-base) ease-out;
}

/* ===================================
   Utility Classes
   =================================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ===================================
   Reports Section
   =================================== */
.reports-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-lg);
}

.report-card {
    display: flex;
    flex-direction: column;
}

.report-card.full-width {
    grid-column: 1 / -1;
}

.chart-container {
    position: relative;
    height: 300px;
    margin: var(--spacing-md) 0;
}

.report-summary {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-md);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.summary-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-black);
}

/* ===================================
   Contamination Report
   =================================== */
.report-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contamination-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.contamination-metric {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-gray-200);
}

.metric-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.metric-icon i {
    width: 24px;
    height: 24px;
    color: var(--color-black);
}

.metric-content {
    flex: 1;
}

.metric-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-black);
    line-height: 1;
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

.contamination-details h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
}

.detail-list li i {
    width: 18px;
    height: 18px;
    color: var(--color-black);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ===================================
   Compliance Report
   =================================== */
.compliance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.compliance-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.compliance-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.compliance-section h4 i {
    width: 20px;
    height: 20px;
}

.check-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-black);
}

.check-item.passed {
    border-left-color: var(--color-black);
}

.check-item.failed {
    border-left-color: var(--color-gray-700);
}

.check-item > i {
    width: 24px;
    height: 24px;
    color: var(--color-black);
    flex-shrink: 0;
    margin-top: 2px;
}

.check-content {
    flex: 1;
}

.check-title {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.check-detail {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.5;
}

.compliance-summary {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    text-align: center;
}

.summary-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.summary-badge i {
    width: 24px;
    height: 24px;
}

.summary-badge.success {
    background-color: var(--color-black);
}

.summary-badge.warning {
    background-color: var(--color-gray-700);
}

.summary-badge.error {
    background-color: var(--color-gray-900);
}