/**
 * ============================================
 * SWASTHSATHI - UNIFIED BASE STYLES
 * Shared across ALL pages
 * ============================================
 */

/* ===== CSS VARIABLES (UNIFIED) ===== */
:root {
    /* Primary Colors */
    --primary: #10b981;
    --primary-dark: #059669;
    --primary-light: #d1fae5;
    --primary-pale: #d1fae5;
    --primary-ghost: #f0fdf4;
    
    /* Secondary Colors */
    --secondary: #3b82f6;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --success-dark: #047857;
    
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #d97706;
    
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-dark: #dc2626;
    
    --info: #3b82f6;
    --info-light: #dbeafe;
    --info-dark: #2563eb;
    
    /* Neutral Colors */
    --white: #ffffff;
    --black: #000000;
    --dark: #1f2937;
    --gray: #6b7280;
    --gray-light: #9ca3af;
    --gray-pale: #e5e7eb;
    --gray-bg: #f3f4f6;
    --gray-border: #d1d5db;
    --light-bg: #f9fafb;
    
    /* Aliased color names for backward compatibility */
    --color-primary: var(--primary);
    --color-primary-dark: var(--primary-dark);
    --color-primary-light: var(--primary-light);
    --color-primary-pale: var(--primary-pale);
    --color-primary-ghost: var(--primary-ghost);
    
    --color-success: var(--success);
    --color-success-light: var(--success-light);
    --color-success-dark: var(--success-dark);
    
    --color-warning: var(--warning);
    --color-warning-light: var(--warning-light);
    --color-warning-dark: var(--warning-dark);
    
    --color-danger: var(--danger);
    --color-danger-light: var(--danger-light);
    --color-danger-dark: var(--danger-dark);
    
    --color-info: var(--info);
    --color-info-light: var(--info-light);
    --color-info-dark: var(--info-dark);
    
    --color-white: var(--white);
    --color-black: var(--black);
    --color-dark: var(--dark);
    --color-gray: var(--gray);
    --color-gray-light: var(--gray-light);
    --color-gray-pale: var(--gray-pale);
    --color-gray-bg: var(--gray-bg);
    --color-gray-border: var(--gray-border);
    
    /* Typography */
    --font-primary: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    
    /* Border Radius */
    --radius-base: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
}

/* ===== GLOBAL RESETS ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--light-bg);
}

html {
    scroll-behavior: smooth;
}

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

/* ===== UNIFIED NAVBAR STYLES ===== */
.navbar {
    background: white !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    color: var(--dark) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

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

/* ===== UNIFIED BUTTON STYLES ===== */
.btn-primary-custom {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    color: white !important;
    padding: 0.625rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary-custom:hover {
    background: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-primary-custom a {
    color: white !important;
    text-decoration: none;
}

/* Bootstrap Form Controls */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(16, 185, 129, 0.25);
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* ===== UNIFIED FOOTER STYLES ===== */
.footer {
    background: #111827;
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer h5 {
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.footer p,
.footer .text-muted,
.footer small {
    color: rgba(255, 255, 255, 0.85) !important;
}

.footer a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 0.5rem;
}

.footer a:hover {
    color: #ffffff;
}

.footer hr {
    border-color: rgba(255, 255, 255, 0.2);
}

/* ===== UTILITY CLASSES ===== */
.bg-success-subtle { background: var(--success-light) !important; color: var(--success); }
.bg-primary-subtle { background: #dbeafe !important; color: #2563eb; }
.bg-warning-subtle { background: var(--warning-light) !important; color: var(--warning-dark); }
.bg-info-subtle { background: var(--info-light) !important; color: var(--info-dark); }
.bg-danger-subtle { background: var(--danger-light) !important; color: var(--danger-dark); }

.border-success { border-color: var(--success) !important; }
.border-warning { border-color: var(--warning) !important; }
.border-danger { border-color: var(--danger) !important; }
.border-info { border-color: var(--info) !important; }

.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-primary { color: var(--primary) !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-in;
}

/* Language Dropdown Styles */
.language-option {
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

.language-option:hover {
    background: #f3f4f6;
}

.language-option.active {
    background: #10b981;
    color: white;
}

.language-option.active:hover {
    background: #059669;
}

#languageDropdownBtn {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: background 0.2s ease;
}

#languageDropdownBtn:hover {
    background: rgba(16, 185, 129, 0.1);
}