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

:root {
    /* Color Palette - Modern & Minimalist */
    --font-family-base: 'Inter', sans-serif;
    
    --color-primary: #3b82f6; /* Modern Blue */
    --color-primary-hover: #2563eb;
    
    --color-text-main: #1f2937;
    --color-text-muted: #6b7280;
    
    --color-bg-body: #f9fafb;
    --color-bg-card: #ffffff;
    --color-bg-input: #f3f4f6;
    
    --color-border: #e5e7eb;
    
    --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);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    --transition-base: all 0.2s ease-in-out;
}

/* Dark Mode Overrides */
body.dark-mode {
    --color-text-main: #f9fafb;
    --color-text-muted: #9ca3af;
    
    --color-bg-body: #111827;
    --color-bg-card: #1f2937;
    --color-bg-input: #374151;
    
    --color-border: #374151;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
}

/* Base Styles */
body {
    font-family: var(--font-family-base) !important;
    background-color: var(--color-bg-body) !important;
    color: var(--color-text-main) !important;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-main) !important;
    font-weight: 700;
}

p, span, li {
    color: var(--color-text-main);
}
.text-muted {
    color: var(--color-text-muted) !important;
}

/* Cards */
.card {
    background-color: var(--color-bg-card) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md) !important;
}

.card-header, .card-footer {
    background-color: transparent !important;
    border-color: var(--color-border) !important;
}

/* Buttons */
.btn {
    border-radius: var(--radius-md) !important;
    padding: 0.625rem 1.25rem !important;
    font-weight: 500 !important;
    transition: var(--transition-base) !important;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

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

/* Inputs */
.form-control {
    background-color: var(--color-bg-input) !important;
    border: 1px solid transparent !important;
    border-radius: var(--radius-md) !important;
    color: var(--color-text-main) !important;
    padding: 0.75rem 1rem !important;
    transition: var(--transition-base) !important;
}

.form-control:focus {
    background-color: var(--color-bg-card) !important;
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
}

/* Navbar */
.navbar {
    background-color: var(--color-bg-card) !important;
    border-bottom: 1px solid var(--color-border) !important;
    box-shadow: var(--shadow-sm) !important;
}

.navbar-brand, .nav-link {
    color: var(--color-text-main) !important;
}

.nav-link:hover {
    color: var(--color-primary) !important;
}

/* Dropdowns */
.dropdown-menu {
    background-color: var(--color-bg-card) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-lg) !important;
}

.dropdown-item {
    color: var(--color-text-main) !important;
    transition: background-color 0.15s ease;
}

.dropdown-item:hover {
    background-color: var(--color-bg-input) !important;
    color: var(--color-primary) !important;
}

/* Dark Mode Toggle Button */
.theme-toggle-btn {
    background: transparent;
    border: none;
    color: var(--color-text-main);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.theme-toggle-btn:hover {
    background-color: var(--color-bg-input);
}