:root {
    /* Professional Color Palette (Slate-based) */
    --color-primary: #0f172a;       /* Slate 900 - Main Brand */
    --color-primary-light: #1e293b; /* Slate 800 */
    --color-accent: #0ea5e9;        /* Sky 500 - Actions */
    --color-accent-hover: #0284c7;  /* Sky 600 */
    
    --color-bg-body: #f8fafc;       /* Slate 50 - Main Background */
    --color-bg-card: #ffffff;       /* White - Card Background */
    
    --color-text-main: #334155;     /* Slate 700 */
    --color-text-muted: #64748b;    /* Slate 500 */
    
    --border-color: #e2e8f0;        /* Slate 200 */
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    background-color: var(--color-bg-body);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--color-text-main);
    font-size: 0.875rem; /* 14px base size for cleaner look */
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

small, .small {
    font-size: 0.75rem; /* 12px */
}

/* Card Styling - Clean & Modern */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem; /* Slightly smaller radius */
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

/* Optional hover effect for interactive cards */
.card-hover:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: #cbd5e1;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Form Controls */
.form-control, .form-select {
    border-color: var(--border-color);
    border-radius: 0.5rem;
    padding: 0.625rem 0.875rem;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15); /* Sky color ring */
}

.input-group-text {
    background-color: #f1f5f9;
    border-color: var(--border-color);
    color: var(--color-text-muted);
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: white;
}

/* Utilities */
.text-primary-brand { color: var(--color-primary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-muted-custom { color: var(--color-text-muted) !important; }

.bg-primary-brand { background-color: var(--color-primary) !important; border-top-right-radius: 2rem;}

.bg-primary-brand2 { background-color: var(--color-primary) !important; border-top-right-radius: none;}

.shadow-soft { box-shadow: var(--shadow-lg) !important; }

/* Toast Container Pointer Events */
.toast-container { pointer-events: none; }  
.toast { pointer-events: auto; }

.copyright{
    text-align: center;
    padding: 1rem;
    width: 100%;
    margin-top: auto;
}

@media (min-width: 768px) {
    .copyright {
        text-align: right;
    }
}

/* HTMX Indicator */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease-in;
    pointer-events: none;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
    pointer-events: auto;
}