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

:root {
    /* Mascott Equipment Color Palette */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --secondary-blue: #3b82f6;
    --accent-orange: #f97316;
    --neutral-gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --border-color: #e5e7eb;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --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: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M0 0h40v40H0V0zm10 10h20v20H10V10z'/%3E%3C/g%3E%3C/svg%3E") repeat;
}

.header-content {
    position: relative;
    z-index: 1;
}

.header-logo {
    max-height: 60px;
    width: auto;
    margin-bottom: var(--spacing-lg);
    filter: brightness(0) invert(1); /* Makes logo white for dark header */
    transition: all 0.3s ease;
}

.header-logo:hover {
    transform: scale(1.05);
}

.header-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.025em;
}

.header-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 400;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--spacing-3xl) 0;
}

/* Apps Grid */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* App Tile Styles */
.app-tile {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-light);
    /* Better mobile touch targets */
    min-height: 44px; /* iOS minimum touch target */
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.1);
}

.app-tile:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-large);
    border-color: var(--secondary-blue);
}

.app-tile:hover .app-icon {
    transform: scale(1.1);
    color: var(--secondary-blue);
}

.app-tile:hover .app-arrow {
    transform: translateX(4px);
    opacity: 1;
}

.app-tile:active {
    transform: translateY(-2px);
}

/* App Icon */
.app-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
    transition: all 0.3s ease;
}

.app-icon svg {
    width: 100%;
    height: 100%;
}

/* App Title */
.app-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

/* App Description */
.app-description {
    font-size: var(--font-size-base);
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: var(--spacing-lg);
}

/* App Arrow */
.app-arrow {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: var(--font-size-xl);
    color: var(--accent-orange);
    font-weight: 600;
    opacity: 0;
    transition: all 0.3s ease;
}

/* Footer */
.footer {
    background: var(--white);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: auto;
}

.footer-text {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* Mobile-First Responsive Design */

/* Large Mobile / Small Tablet (up to 768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .header {
        padding: var(--spacing-2xl) 0 var(--spacing-xl) 0;
    }
    
    .header-title {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
    }
    
    .header-subtitle {
        font-size: var(--font-size-lg);
        margin: 0 auto;
        max-width: 90%;
    }
    
    .header-logo {
        max-height: 50px;
        margin-bottom: var(--spacing-lg);
    }
    
    .main {
        padding: var(--spacing-2xl) 0;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        margin-top: var(--spacing-xl);
    }
    
    .app-tile {
        padding: var(--spacing-xl);
        border-radius: var(--border-radius-lg);
        min-height: 140px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    
    .app-tile:hover {
        transform: translateY(-2px);
    }
    
    .app-icon {
        width: 48px;
        height: 48px;
        margin-bottom: var(--spacing-md);
    }
    
    .app-title {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-md);
        line-height: 1.3;
    }
    
    .app-description {
        font-size: var(--font-size-base);
        line-height: 1.5;
        margin-bottom: var(--spacing-md);
        flex-grow: 1;
    }
    
    .app-arrow {
        position: static;
        align-self: flex-end;
        margin-top: auto;
        opacity: 0.7;
        font-size: var(--font-size-lg);
    }
}

/* Small Mobile Phones (up to 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header {
        padding: var(--spacing-xl) 0;
    }
    
    .header-title {
        font-size: var(--font-size-2xl);
        line-height: 1.2;
    }
    
    .header-subtitle {
        font-size: var(--font-size-base);
        max-width: 95%;
    }
    
    .header-logo {
        max-height: 45px;
    }
    
    .main {
        padding: var(--spacing-xl) 0;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
    
    .app-tile {
        padding: var(--spacing-lg);
        min-height: 120px;
        /* Better touch targets for mobile */
        touch-action: manipulation;
    }
    
    .app-icon {
        width: 40px;
        height: 40px;
        margin-bottom: var(--spacing-sm);
    }
    
    .app-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }
    
    .app-description {
        font-size: var(--font-size-sm);
        line-height: 1.4;
        margin-bottom: var(--spacing-sm);
    }
    
    .app-arrow {
        font-size: var(--font-size-base);
    }
    
    .footer {
        padding: var(--spacing-lg) 0;
    }
    
    .footer-text {
        font-size: 0.75rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .app-tile {
        border-width: 2px;
    }
    
    .app-tile:hover {
        border-width: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .app-tile:hover {
        transform: none;
    }
}

/* Print styles */
@media print {
    .header {
        background: var(--white) !important;
        color: var(--text-dark) !important;
    }
    
    .app-tile {
        break-inside: avoid;
        box-shadow: none;
        border: 2px solid var(--border-color);
    }
    
    .app-arrow {
        display: none;
    }
}