/**
 * Modern Stylesheet for God Image Inventory
 * Replaces legacy table-based layouts with modern, responsive design
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #64748b;
    --color-secondary-dark: #475569;
    --color-accent: #0ea5e9;
    --color-text-heading: #1e293b;
    --color-text-body: #475569;
    --color-text-muted: #64748b;
    --color-bg: #ffffff;
    --color-bg-light: #f8fafc;
    --color-bg-dark: #0f172a;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-border: #e2e8f0;
    
    /* Typography */
    --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transitions */
    --transition-base: 0.2s ease;
    --transition-fast: 0.15s ease;
    
    /* 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), 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);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
}

/* ============================================
   Base Styles
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-body);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ============================================
   Navigation Styles
   ============================================ */
.navbar-custom {
    background-color: var(--color-primary) !important;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #ffffff !important;
}

.navbar-brand:hover {
    color: #ffffff !important;
    text-decoration: none;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    margin: 0 var(--spacing-xs);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-nav .nav-link:hover {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.navbar-nav .nav-link.active {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: var(--spacing-xs) var(--spacing-sm);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-status {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    margin: 0;
}

.user-status a {
    color: #ffffff;
    font-weight: 500;
}

.user-status a:hover {
    text-decoration: underline;
}

/* ============================================
   Content Cards
   ============================================ */
.content-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.content-card:hover {
    box-shadow: var(--shadow-md);
}

.content-card-header {
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.content-card-title {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.content-card-date {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

.content-card-body {
    color: var(--color-text-body);
}

/* Announcement Cards */
.announcement-card {
    background: var(--color-bg);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.announcement-title {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.announcement-date {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Buttons
   ============================================ */
.btn-modern {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    text-decoration: none;
}

.btn-primary-modern {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-primary-modern:hover {
    background-color: var(--color-primary-dark);
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary-modern {
    background-color: var(--color-secondary);
    color: #ffffff;
}

.btn-secondary-modern:hover {
    background-color: var(--color-secondary-dark);
    color: #ffffff;
    text-decoration: none;
}

.btn-outline-modern {
    background-color: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-modern:hover {
    background-color: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
}

/* ============================================
   Forms
   ============================================ */
.form-modern .form-control,
.form-modern .form-select {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.form-modern .form-control:focus,
.form-modern .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-modern label {
    font-weight: 500;
    color: var(--color-text-heading);
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   Layout Utilities
   ============================================ */
.section-padding {
    padding: var(--spacing-2xl) 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: var(--spacing-xl) 0;
    }
}

.container-modern {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.footer-modern {
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-2xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-modern a {
    color: var(--color-primary);
}

/* ============================================
   Responsive Utilities
   ============================================ */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .content-card {
        padding: var(--spacing-md);
    }
    
    .navbar-nav {
        margin-top: var(--spacing-md);
    }
    
    .navbar-nav .nav-link {
        margin: var(--spacing-xs) 0;
    }
}

/* ============================================
   Legacy Compatibility
   ============================================ */
/* Hide old table-based elements that might still exist */
.legacy-table {
    display: none;
}

/* Ensure old font tags work with new styles */
font[size="1"] {
    font-size: var(--font-size-sm) !important;
}

font[size="2"] {
    font-size: var(--font-size-base) !important;
}

font[size="3"] {
    font-size: var(--font-size-lg) !important;
}