/**
 * Level3Support — core.css
 * Lead Developer: Andres Provero (@aprovero)
 * © 2026 Level3Support
 *
 * Design System: Slate / White / Electric Blue
 * Layer: Core brand layouts and resets
 */

/* Google Fonts: Inter (body) + Outfit (headings) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap');

/* Declare CSS Cascade Layer Order */
@layer core, components;

@layer core {
    /* ==========================================================================
       1. CSS Reset & Normalizing
       ========================================================================== */
    *, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html, body {
        height: 100%;
        width: 100%;
    }

    ul, ol {
        list-style: none;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    img, picture, video, canvas, svg {
        display: block;
        max-width: 100%;
    }

    input, button, textarea, select {
        font: inherit;
    }

    /* ==========================================================================
       2. Variables
       ========================================================================== */
    :root {
        /* Color Palette — Slate / White / Electric Blue */
        --primary-color: #2563eb;
        --primary-hover: #1d4ed8;
        --primary-light: #dbeafe;
        --primary-border: #93c5fd;
        
        --text-color: #1e293b;
        --text-secondary: #475569;
        --text-light: #94a3b8;
        
        --background-color: #f8fafc;
        --background-light: #ffffff;
        --background-dark: #f1f5f9;
        
        --border-color: #e2e8f0;
        --border-light: #cbd5e1;
        --border-focus: #2563eb;
        
        /* Status Colors */
        --success-color: #16a34a;
        --success-light: #dcfce7;
        --success-border: #bbf7d0;
        --success-text: #166534;
        
        --error-color: #dc2626;
        --error-light: #fee2e2;
        --error-border: #fecaca;
        --error-text: #991b1b;
        
        --info-color: #2563eb;
        --info-light: #dbeafe;
        --info-border: #93c5fd;
        --info-text: #1e40af;
        
        --warning-color: #d97706;
        --warning-light: #fef3c7;
        --warning-border: #fde68a;
        --warning-text: #92400e;
        
        /* System Types */
        --system-pv-bg: #e8f4f8;
        --system-pv-text: #0077b6;
        --system-bess-bg: #e8f8e8;
        --system-bess-text: #2e8b57;
        --system-other-bg: #f8e8f8;
        --system-other-text: #8b2e57;
        
        /* Spacing */
        --space-xs: 5px;
        --space-sm: 10px;
        --space-md: 15px;
        --space-lg: 20px;
        --space-xl: 30px;
        --space-xxl: 50px;
        
        /* Borders */
        --border-radius-sm: 4px;
        --border-radius-md: 8px;
        --border-radius-lg: 10px;
        --border-radius-round: 50%;
        
        /* Shadows */
        --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
        --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
        --shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.15);
        
        /* Animation */
        --transition-quick: all 0.2s ease;
        --transition-default: all 0.3s ease;

        /* Hub Categories */
        --color-calculators: #3b82f6; /* Blue */
        --color-pv-field-tools: #f59e0b; /* Amber */
        --color-bess-field-tools: #10b981; /* Emerald */
        --color-electrical-test-forms: #ec4899; /* Pink */
        --color-scada-diagnostics: #8b5cf6; /* Purple */
        --color-reports-templates: #06b6d4; /* Cyan */
        --color-reference-guides: #64748b; /* Slate */
        --color-hse: #ef4444; /* Red */
        --color-legacy-archive: #94a3b8; /* Light Slate */
        --color-oem-specific: #6366f1; /* Indigo */
    }

    /* ==========================================================================
       3. Base & Typography Styles
       ========================================================================== */
    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        background-color: var(--background-color);
        margin: 0;
        padding: 0;
        color: var(--text-color);
        line-height: 1.6;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .container {
        max-width: 720px;
        margin: 20px auto;
        background: var(--background-light);
        border-radius: var(--border-radius-lg);
        box-shadow: var(--shadow-md);
        padding: 10px;
        position: relative;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Outfit', sans-serif;
        line-height: 1.3;
        font-weight: 600;
    }

    h1 {
        text-align: center;
        color: var(--text-color);
        margin: 30px 0;
        font-size: 24px;
    }

    h2 {
        color: var(--text-color);
        font-size: 20px;
        margin-bottom: 15px;
    }

    h3 {
        color: var(--text-color);
        font-size: 18px;
        margin-bottom: 10px;
    }

    h4 {
        color: var(--text-secondary);
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 5px;
    }

    p {
        margin-bottom: 15px;
    }

    a {
        color: var(--primary-color);
        transition: var(--transition-quick);
    }

    a:hover {
        color: var(--primary-hover);
    }

    /* ==========================================================================
       4. Shell Layout Components
       ========================================================================== */
    /* Header */
    .header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 0 20px 0;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 20px;
    }

    .logo {
        display: flex;
        align-items: center;
    }

    .logo img {
        width: 250px;
        height: auto;
    }

    .header-icons {
        display: flex;
        gap: 10px;
        align-items: center;
    }

    .contact-icon, .training-icon {
        display: flex;
        align-items: center;
    }

    .contact-icon img, .training-icon img {
        width: 30px;
        height: 30px;
        cursor: pointer;
        background-color: white;
        padding: 3px;
        border-radius: var(--border-radius-round);
        box-shadow: var(--shadow-sm);
        transition: var(--transition-quick);
    }

    .contact-icon img:hover, .training-icon img:hover {
        transform: scale(1.1);
    }

    .footer-logo img[alt="Claude Logo"] {
        height: 28px;
        width: auto;
    }
      
    .footer-logo img[alt="Level3Support"] {
        height: 40px;
    }

    .back-link {
        display: inline-block;
        color: var(--info-color);
        text-decoration: none;
        margin-bottom: 20px;
        font-size: 16px;
        transition: color 0.3s;
    }

    .back-link:hover {
        color: #0056b3;
        text-decoration: underline;
    }

    /* Standardized Flat-Style Footers across all tools */
    .footer, .main-footer {
        background: #0f172a !important;
        padding: 1.5rem 2rem !important;
        border: 1px solid #1e293b !important;
        margin: 4rem auto 2rem auto !important;
        border-radius: 8px !important;
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        flex-wrap: wrap !important;
        gap: 1rem !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        color: #64748b !important;
    }

    .footer-text, .footer p {
        margin: 0 !important;
        color: #64748b !important;
        font-size: 0.85rem !important;
    }

    .footer-copyright, .footer-text span {
        color: #64748b !important;
        font-weight: 555 !important;
    }

    .footer-logo, .powered-by-wrapper {
        display: flex !important;
        align-items: center !important;
        gap: 0.5rem !important;
        color: #64748b !important;
        font-size: 0.85rem !important;
    }

    .footer-logo img, .powered-by-wrapper img {
        height: 28px !important;
        width: auto !important;
        background: #ffffff !important;
        padding: 3px 10px !important;
        border-radius: 4px !important;
        box-shadow: 0 2px 6px rgba(0,0,0,0.15) !important;
        display: inline-block !important;
    }

    /* Global Tool Body Grid Standardizations */
    .tool-body-grid,
    .top-body-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
        align-items: start !important;
    }

    @media (min-width: 1024px) {
        .tool-body-grid,
        .top-body-grid {
            grid-template-columns: 3fr 2fr !important;
        }
    }

    .tool-body-grid > div > :first-child,
    .top-body-grid > div > :first-child {
        margin-top: 0 !important;
    }

    /* Global Unified Tool Header Cards */
    .tool-header-section {
        background: #ffffff !important;
        border: 1px solid var(--border-color) !important;
        border-radius: 12px !important;
        padding: 1.5rem 2rem !important;
        margin-bottom: 2rem !important;
        box-shadow: var(--shadow-sm) !important;
    }

    .tool-title-row {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        flex-wrap: wrap !important;
        gap: 1rem !important;
        margin-bottom: 0rem !important;
    }

    .tool-meta {
        display: flex !important;
        align-items: center !important;
        gap: 10px !important;
        margin-top: 0.5rem !important;
    }

    /* Hub Dashboard and Tiles Styles */
    .global-disclaimer-banner {
        background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
        border: 1px solid #fecaca;
        color: #991b1b;
        padding: 1rem 1.5rem;
        border-radius: 12px;
        margin: 1.5rem auto;
        max-width: 1400px;
        display: flex;
        align-items: center;
        gap: 1rem;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .global-disclaimer-banner i {
        font-size: 1.5rem;
        color: #dc2626;
        flex-shrink: 0;
    }

    .tools-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 1.5rem;
        margin: 2rem 0;
    }

    .tool-tile {
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: 16px;
        box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02), 0 10px 15px -3px rgba(0,0,0,0.03);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        height: 240px;
    }

    .tool-tile::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 6px;
        height: 100%;
        background-color: var(--primary-color);
        transition: width 0.2s ease;
    }

    .tool-tile:hover {
        transform: translateY(-4px);
        box-shadow: 0 20px 25px -5px rgba(0,0,0,0.05), 0 10px 10px -5px rgba(0,0,0,0.02);
        border-color: #cbd5e1;
    }

    .tool-tile:hover::before {
        width: 8px;
    }

    .tool-tile[data-status="active"]::before { background-color: #15803d; }
    .tool-tile[data-status="under-review"]::before { background-color: #c2410c; }
    .tool-tile[data-status="in-progress"]::before { background-color: #b45309; }
    .tool-tile[data-status="legacy"]::before { background-color: #64748b; }

    .tile-content {
        padding: 0.85rem 1.25rem 1.15rem 1.25rem;
        display: flex;
        flex-direction: column;
        height: 100%;
        flex: 1;
    }

    .tile-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.6rem;
    }

    .tool-settings-btn {
        background: transparent;
        border: none;
        color: #94a3b8;
        cursor: pointer;
        font-size: 0.9rem;
        padding: 0;
        margin: 0;
        line-height: 1;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 1.25rem;
        height: 1.25rem;
    }

    .tool-settings-btn:hover {
        color: var(--primary-color);
        background: transparent !important;
        transform: rotate(360deg);
    }

    .tile-category {
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: #64748b;
        background: #f1f5f9;
        padding: 0.25rem 0.6rem;
        border-radius: 9999px;
        flex-shrink: 0;
    }

    .tool-tile[data-category="calculators"] .tile-category { color: var(--color-calculators); background: #eff6ff; }
    .tool-tile[data-category="pv-field-tools"] .tile-category { color: var(--color-pv-field-tools); background: #fffbeb; }
    .tool-tile[data-category="bess-field-tools"] .tile-category { color: var(--color-bess-field-tools); background: #ecfdf5; }
    .tool-tile[data-category="electrical-test-forms"] .tile-category { color: var(--color-electrical-test-forms); background: #fdf2f8; }
    .tool-tile[data-category="scada-diagnostics"] .tile-category { color: var(--color-scada-diagnostics); background: #f5f3ff; }
    .tool-tile[data-category="reports-templates"] .tile-category { color: var(--color-reports-templates); background: #ecfeff; }
    .tool-tile[data-category="reference-guides"] .tile-category { color: var(--color-reference-guides); background: #f8fafc; }
    .tool-tile[data-category="hse"] .tile-category { color: var(--color-hse); background: #fef2f2; }
    .tool-tile[data-category="oem-specific"] .tile-category { color: var(--color-oem-specific); background: #e0e7ff; }

    .status-badge {
        font-size: 0.65rem;
        font-weight: 600;
        padding: 0.2rem 0.5rem;
        border-radius: 4px;
        text-transform: uppercase;
        flex-shrink: 0;
    }

    .status-active { background-color: #dcfce7; color: #15803d; }
    .status-under-review { background-color: #ffedd5; color: #c2410c; }
    .status-in-progress { background-color: #fef3c7; color: #b45309; }
    .status-legacy { background-color: #e2e8f0; color: #475569; }
    .status-disabled { background-color: #fee2e2; color: #b91c1c; }
    .status-admin-only { background-color: #f3e8ff; color: #6b21a8; }

    .tile-main {
        display: flex;
        align-items: flex-start;
        gap: 0.75rem;
        margin-bottom: 0.5rem;
    }

    .tile-icon-wrapper {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        color: #475569;
        flex-shrink: 0;
        transition: all 0.2s ease;
    }

    .tool-tile:hover .tile-icon-wrapper {
        background: var(--primary-light);
        color: var(--primary-color);
        border-color: var(--primary-border);
    }

    .tool-tile[data-category="calculators"]:hover .tile-icon-wrapper { background: #eff6ff; color: var(--color-calculators); border-color: #bfdbfe; }
    .tool-tile[data-category="pv-field-tools"]:hover .tile-icon-wrapper { background: #fffbeb; color: var(--color-pv-field-tools); border-color: #fde68a; }
    .tool-tile[data-category="bess-field-tools"]:hover .tile-icon-wrapper { background: #ecfdf5; color: var(--color-bess-field-tools); border-color: #a7f3d0; }
    .tool-tile[data-category="electrical-test-forms"]:hover .tile-icon-wrapper { background: #fdf2f8; color: var(--color-electrical-test-forms); border-color: #fbcfe8; }
    .tool-tile[data-category="scada-diagnostics"]:hover .tile-icon-wrapper { background: #f5f3ff; color: var(--color-scada-diagnostics); border-color: #ddd6fe; }
    .tool-tile[data-category="reports-templates"]:hover .tile-icon-wrapper { background: #ecfeff; color: var(--color-reports-templates); border-color: #a5f3fc; }
    .tool-tile[data-category="hse"]:hover .tile-icon-wrapper { background: #fef2f2; color: var(--color-hse); border-color: #fecaca; }
    .tool-tile[data-category="oem-specific"]:hover .tile-icon-wrapper { background: #e0e7ff; color: var(--color-oem-specific); border-color: #c7d2fe; }

    .tile-info {
        flex: 1;
        min-width: 0;
    }

    .tile-title {
        font-size: 1rem;
        font-weight: 650;
        color: #0f172a;
        margin: 0 0 0.25rem 0;
        font-family: 'Outfit', sans-serif;
        line-height: 1.25;
    }

    .tile-description {
        font-size: 0.78rem;
        color: #64748b;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .tile-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-top: 1px solid #f1f5f9;
        padding-top: 0.8rem;
        margin-top: auto;
    }

    .tile-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.4rem;
    }

    .tag-badge {
        font-size: 0.65rem;
        font-weight: 500;
        padding: 0.15rem 0.4rem;
        border-radius: 4px;
        background: #f1f5f9;
        color: #475569;
    }

    .tag-pv { background-color: #fffbeb; color: #d97706; }
    .tag-bess { background-color: #ecfdf5; color: #059669; }
    .tag-scada { background-color: #f5f3ff; color: #7c3aed; }
    .tag-hse { background-color: #fef2f2; color: #dc2626; }
    .tag-testing { background-color: #eff6ff; color: #2563eb; }

    .tile-action-indicator {
        color: #94a3b8;
        transition: transform 0.2s ease, color 0.2s ease;
    }

    .tool-tile:hover .tile-action-indicator {
        transform: translateX(4px);
        color: var(--primary-color);
    }

    .placeholder-container,
    .calc-container {
        max-width: 900px !important;
        margin: 2rem auto !important;
        padding: 0 1.5rem !important;
        background: transparent !important;
        box-shadow: none !important;
        border-radius: 0 !important;
    }

    /* ==========================================================================
       5. Media Queries Layout Overrides
       ========================================================================== */
    @media (max-width: 768px) {
        .container {
            margin: 10px auto;
            padding: 12px;
            width: 92%;
        }
        
        .header {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .header-icons {
            margin-top: 10px;
            justify-content: center;
        }

        .logo img {
            width: 200px;
        }
        
        .footer, .main-footer {
            flex-direction: column !important;
            align-items: center !important;
            text-align: center !important;
            padding: 1.25rem 1rem !important;
            margin: 2rem auto 1rem auto !important;
            gap: 0.75rem !important;
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            border-radius: 8px !important;
        }
        
        .footer-text, .footer p {
            text-align: center !important;
            margin-bottom: 0.25rem !important;
        }
        
        .footer-logo, .powered-by-wrapper {
            margin-top: 0.25rem !important;
            justify-content: center !important;
        }

        .tool-tile {
            height: auto !important;
            min-height: 185px;
        }
    }

    @media (max-width: 480px) {
        .container {
            margin: 8px auto;
            padding: 10px;
            width: calc(100% - 20px);
            max-width: none;
        }
          
        .logo img {
            width: 200px;
        }
        
        h1 {
            font-size: 20px;
            margin: 20px 0;
        }
    }

    @media print {
        .container {
            margin: 0;
            box-shadow: none;
        }
        
        .header-icons, 
        .back-link {
            display: none !important;
        }
        
        body {
            background-color: white;
        }
        
        h1 {
            font-size: 18px;
        }
        
        .footer {
            margin-top: 20px;
            border-top: 1px solid #ddd;
        }
    }
}