LEDMatrix/web_interface/static/v3/app.css

/* LED Matrix v3 Custom Styles */
/* Modern, clean design with utility classes */

/* CSS Custom Properties for Theme Colors */
:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-secondary: #059669;
    --color-secondary-hover: #047857;
    --color-accent: #7c3aed;
    --color-accent-hover: #6d28d9;
    --color-background: #f9fafb;
    --color-surface: #ffffff;
    --color-text-primary: #111827;
    --color-text-secondary: #374151;
    --color-text-tertiary: #4b5563;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-success: #059669;
    --color-success-bg: #d1fae5;
    --color-error: #dc2626;
    --color-error-bg: #fee2e2;
    --color-warning: #d97706;
    --color-warning-bg: #fef3c7;
    --color-info: #2563eb;
    --color-info-bg: #dbeafe;
    --color-purple-bg: #f3e8ff;
    --color-purple-text: #6b21a8;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Base styles */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
}

/* Utility classes */
.bg-gray-50 { background-color: #f9fafb; }
.bg-white { background-color: #ffffff; }
.bg-gray-900 { background-color: #111827; }
.bg-green-500 { background-color: #10b981; }
.bg-red-500 { background-color: #ef4444; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-yellow-500 { background-color: #f59e0b; }
.bg-green-600 { background-color: #059669; }
.bg-red-600 { background-color: #dc2626; }
.bg-blue-600 { background-color: #2563eb; }
.bg-yellow-600 { background-color: #d97706; }
.bg-gray-200 { background-color: #e5e7eb; }

.text-gray-900 { color: #111827; }
.text-gray-600 { color: #374151; }
.text-gray-500 { color: #4b5563; }
.text-gray-400 { color: #6b7280; }
.text-white { color: #ffffff; }
.text-green-600 { color: #059669; }
.text-red-600 { color: #dc2626; }

.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }
.border-transparent { border-color: transparent; }

.rounded-lg { border-radius: 0.5rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded { border-radius: 0.25rem; }

.shadow { box-shadow: var(--shadow); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.p-6 { padding: 1.5rem; }
.p-4 { padding: 1rem; }
.p-2 { padding: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.pb-4 { padding-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-4 { margin-top: 1rem; }
.mr-2 { margin-right: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }

.w-full { width: 100%; }
.w-0 { width: 0; }
.w-2 { width: 0.5rem; }
.w-4 { width: 1rem; }
.h-2 { height: 0.5rem; }
.h-4 { height: 1rem; }
.h-10 { height: 2.5rem; }
.h-16 { height: 4rem; }
.h-24 { height: 6rem; }
.h-32 { height: 8rem; }
.h-96 { height: 24rem; }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.space-x-1 > * + * { margin-left: 0.25rem; }
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-1\.5 > * + * { margin-top: 0.375rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-x-2 { column-gap: 0.5rem; }
.gap-x-3 { column-gap: 0.75rem; }
.gap-x-4 { column-gap: 1rem; }
.gap-x-6 { column-gap: 1.5rem; }
.gap-x-8 { column-gap: 2rem; }
.gap-y-2 { row-gap: 0.5rem; }

/* Enhanced Typography */
.text-xs { font-size: 0.75rem; line-height: 1.4; }
.text-sm { font-size: 0.875rem; line-height: 1.5; }
.text-base { font-size: 1rem; line-height: 1.5; }
.text-lg { font-size: 1.125rem; line-height: 1.75; }
.text-xl { font-size: 1.25rem; line-height: 1.75; }
.text-2xl { font-size: 1.5rem; line-height: 2; }
.text-4xl { font-size: 2.25rem; line-height: 2.5; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Headings with improved hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text-primary);
    /* Improved line-height from 1.3 to 1.4 for better readability */
}

h1 { font-size: 1.875rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

.border-b { border-bottom-width: 1px; }
.border-b-2 { border-bottom-width: 2px; }

.relative { position: relative; }
.fixed { position: fixed; }
.absolute { position: absolute; }
.z-50 { z-index: 50; }

.top-4 { top: 1rem; }
.right-4 { right: 1rem; }

.max-w-7xl { max-width: 56rem; }
.max-w-full { max-width: 100%; }
.mx-auto { margin-left: auto; margin-right: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-hidden { overflow: hidden; }

.aspect-video { aspect-ratio: 16 / 9; }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.transition { transition-property: transform, opacity, color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
/* Optimized: Replaced 'all' with specific properties to avoid animating expensive properties */

/* Removed .duration-300 - not used anywhere */

.hover\:bg-green-700:hover { background-color: #047857; }
.hover\:bg-red-700:hover { background-color: #b91c1c; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:bg-yellow-700:hover { background-color: #b45309; }
.hover\:text-gray-700:hover { color: #374151; }
.hover\:border-gray-300:hover { border-color: #d1d5db; }

.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:ring-2:focus {
    --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);
    box-shadow: var(--tw-ring-offset-shadow), var(--tw-shadow, 0 0 #0000);
}
/* Optimized: Split complex selector onto multiple lines for readability */
.focus\:ring-blue-500:focus { --tw-ring-color: #3b82f6; }

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

/* Smooth transitions for all interactive elements */
/* Optimized: Only transition properties that don't trigger expensive repaints */
a, button, input, select, textarea {
    transition: color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
    /* Removed background-color transition - can trigger repaints, use opacity or border-color instead */
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Logs container specific scrollbar */
#logs-container::-webkit-scrollbar {
    width: 10px;
}

#logs-container::-webkit-scrollbar-track {
    background: #374151;
}

#logs-container::-webkit-scrollbar-thumb {
    background: #6b7280;
    border-radius: 5px;
}

#logs-container::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* Smooth scrolling for logs container */
#logs-container {
    scroll-behavior: smooth;
    position: relative;
    overflow-y: auto !important;
}

/* Ensure logs content doesn't cause overflow issues */
.log-entry {
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

/* Ensure proper containment of logs */
#logs-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

#logs-empty {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
}

#logs-display {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
}

.logs-content {
    height: 100%;
    overflow-y: auto;
    padding: 0;
}

/* Logs container responsive height - simplified for better scrolling */
@media (max-width: 768px) {
    #logs-container {
        height: 400px !important;
        min-height: 300px !important;
    }
}

@media (max-width: 640px) {
    #logs-container {
        height: 350px !important;
        min-height: 250px !important;
    }
}

/* Responsive breakpoints */
@media (min-width: 640px) {
    .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .lg\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
    .lg\:gap-x-3 { column-gap: 0.75rem; }
    .lg\:gap-x-6 { column-gap: 1.5rem; }
}

@media (min-width: 1280px) {
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .xl\:grid-cols-7 { grid-template-columns: repeat(7, minmax(0, 1fr)); }
    .xl\:grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
    .xl\:px-12 { padding-left: 3rem; padding-right: 3rem; }
    .xl\:space-x-6 > * + * { margin-left: 1.5rem; }
    .xl\:gap-x-4 { column-gap: 1rem; }
    .xl\:gap-x-8 { column-gap: 2rem; }
}

@media (min-width: 1536px) {
    .2xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .2xl\:grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .2xl\:grid-cols-7 { grid-template-columns: repeat(7, minmax(0, 1fr)); }
    .2xl\:grid-cols-8 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
    .2xl\:grid-cols-9 { grid-template-columns: repeat(9, minmax(0, 1fr)); }
    .2xl\:grid-cols-10 { grid-template-columns: repeat(10, minmax(0, 1fr)); }
    .2xl\:px-16 { padding-left: 4rem; padding-right: 4rem; }
    .2xl\:space-x-8 > * + * { margin-left: 2rem; }
}

/* HTMX loading states */
.htmx-request .loading {
    display: inline-block;
}

.htmx-request .btn-text {
    opacity: 0.5;
}

/* Enhanced Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    transition: transform 0.15s ease, opacity 0.15s ease;
    cursor: pointer;
    border: none;
    /* Removed ::before pseudo-element animation for better performance */
}

.btn:hover {
    transform: translateY(-1px);
    opacity: 0.9;
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover {
    transform: none;
}

.btn:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* Global button text contrast fix: Ensure buttons with white backgrounds have dark text */
button.bg-white {
    color: #111827 !important; /* text-gray-900 equivalent - ensures good contrast on white background */
}

/* Form styles */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    background-color: #ffffff;
    color: #111827; /* text-gray-900 - ensure dark text on white background */
    font-size: 0.875rem;
    line-height: 1.25rem;
    transition: border-color 0.15s ease-in-out;
    /* Removed box-shadow transition - using border-color only for better performance */
}

.form-control:focus {
    border-color: var(--color-primary);
    /* Using outline instead of box-shadow for focus state (better performance) */
    outline: 2px solid rgba(37, 99, 235, 0.2);
    outline-offset: 2px;
}

.form-control:disabled {
    background-color: #f9fafb;
    opacity: 0.6;
    cursor: not-allowed;
}

/* Enhanced Card styles */
.card {
    background-color: var(--color-surface);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.15s ease;
    contain: layout style paint;
    /* Removed box-shadow transition for better performance - using transform only (GPU accelerated) */
    /* Added CSS containment for better performance isolation */
}

.card:hover {
    transform: translateY(-2px);
}

/* Plugin Card Styles */
.plugin-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1.25rem;
    transition: transform 0.15s ease, border-color 0.15s ease;
    cursor: pointer;
    position: relative;
    contain: layout style paint;
    /* Simplified transitions - using only transform and border-color (cheaper than box-shadow) */
    /* Added CSS containment for better performance isolation */
}

.plugin-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: opacity 0.15s ease;
}

.plugin-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    /* Removed box-shadow transition for better performance */
}

.plugin-card:hover::before {
    opacity: 1;
}

.plugin-card:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.plugin-card:active {
    transform: translateY(0);
}

/* Status indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-indicator.success {
    background-color: #dcfce7;
    color: #166534;
}

.status-indicator.error {
    background-color: #fef2f2;
    color: #991b1b;
}

.status-indicator.warning {
    background-color: #fffbeb;
    color: #92400e;
}

.status-indicator.info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

/* Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.4;
}

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

.badge-error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

.badge-accent {
    background-color: var(--color-purple-bg);
    color: var(--color-purple-text);
}

/* Section Headers with Subtle Gradients */
.section-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(249, 250, 251, 0.9) 100%);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    margin-bottom: 1.5rem;
}

/* Enhanced Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-tertiary);
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--color-text-tertiary);
    opacity: 0.5;
    margin-bottom: 1rem;
}

/* Enhanced Loading Skeleton */
.skeleton {
    background-color: #f0f0f0;
    border-radius: 0.375rem;
    animation: skeletonPulse 1.5s ease-in-out infinite;
    /* Simplified from gradient animation to opacity pulse for better performance */
}

@keyframes skeletonPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Enhanced Modal Styling */
.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.5);
    /* Removed backdrop-filter: blur() for better performance on Raspberry Pi */
    transition: opacity 0.2s ease;
}

.modal-content {
    background: var(--color-surface);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.2s ease;
    contain: layout style paint;
    /* Added CSS containment for better performance isolation */
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Removed .divider and .divider-light - not used anywhere */

/* Enhanced Spacing Utilities - Only unique classes not in main utility section */
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.p-3 { padding: 0.75rem; }
.p-5 { padding: 1.25rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
/* Removed duplicates: mt-4, mb-2, mb-4, mb-6, mb-8, p-4, p-6, px-4, py-2, py-3 (already defined above) */

/* Additional Utility Classes */
.min-w-0 { min-width: 0; }
.leading-relaxed { line-height: 1.625; }

/* Enhanced Navigation Tab Styles */
.nav-tab {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.25rem;
    border-bottom-width: 2px;
    border-bottom-style: solid;
    border-bottom-color: transparent;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    color: #374151; /* text-gray-700 for better readability */
    white-space: nowrap;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
    cursor: pointer;
    background-color: transparent;
    border-top: none;
    border-left: none;
    border-right: none;
}

.nav-tab i {
    transition: color 0.15s ease;
    margin-right: 0.5rem;
}

/* Inactive state - improved contrast */
.nav-tab:not(.nav-tab-active) {
    color: #374151; /* text-gray-700 */
}

.nav-tab:not(.nav-tab-active) i {
    color: #374151; /* text-gray-700 */
}

/* Hover state - enhanced visibility */
.nav-tab:not(.nav-tab-active):hover {
    color: #111827; /* text-gray-900 */
    background-color: #f3f4f6; /* bg-gray-100 */
    border-bottom-color: #d1d5db; /* border-gray-300 */
}

.nav-tab:not(.nav-tab-active):hover i {
    color: #111827; /* text-gray-900 */
}

/* Active state - prominent with gradient background */
.nav-tab-active {
    color: #1d4ed8; /* text-blue-700 */
    font-weight: 600;
    border-bottom-width: 3px;
    border-bottom-color: #2563eb; /* border-blue-600 */
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.1);
}

.nav-tab-active i {
    color: #1d4ed8; /* text-blue-700 */
}

/* Responsive padding adjustments */
@media (min-width: 1024px) {
    .nav-tab {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

@media (min-width: 1280px) {
    .nav-tab {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}