/* ==========================================
   PHARMACY MANAGEMENT SYSTEM - CORE STYLES
   ========================================== */

/* 1. Design System & CSS Variables */
:root {
    /* Harmonious Emerald/Teal & Slate Palette */
    --primary-hue: 164;
    --primary-sat: 85%;
    
    --primary-color: hsl(var(--primary-hue), var(--primary-sat), 28%); /* Rich Emerald Teal */
    --primary-hover: hsl(var(--primary-hue), var(--primary-sat), 22%);
    --primary-light: hsl(var(--primary-hue), var(--primary-sat), 94%);
    
    --accent-color: hsl(195, 85%, 41%); /* Cyan Blue accent */
    --dark-neutral: hsl(210, 24%, 16%); /* Slate Black for text */
    --light-neutral: hsl(210, 20%, 98%); /* Soft grayish white */
    --white: #ffffff;
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Base Resets & Typography */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--dark-neutral);
    background-color: var(--light-neutral);
    min-height: 100vh;
}

/* 3. Button Enhancements (Micro-animations) */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, hsl(174, 90%, 20%) 100%);
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    box-shadow: 0 4px 10px rgba(10, 115, 87, 0.2);
    transition: var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(10, 115, 87, 0.35);
    background: linear-gradient(135deg, var(--primary-hover) 0%, hsl(174, 90%, 15%) 100%);
}

.btn-primary:active {
    transform: translateY(0);
}

/* 4. Form Control Enhancements */
.form-control, .form-select {
    border: 1.5px solid hsl(210, 14%, 89%);
    border-radius: var(--border-radius-sm);
    padding: 0.6rem 0.9rem;
    transition: var(--transition-smooth);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px hsla(var(--primary-hue), var(--primary-sat), 28%, 0.15);
    outline: none;
}

/* 5. Glassmorphism Card Style for Login */
.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* 6. Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 7. Input Group Icon Slots */
.input-group-text {
    background-color: var(--light-neutral);
    border: 1.5px solid hsl(210, 14%, 89%);
    color: hsl(210, 10%, 40%);
}

/* 8. Modern alert styling overriding default bootstrap alerts */
.alert {
    border-radius: var(--border-radius-sm);
    border: none;
    box-shadow: var(--shadow-sm);
}

.alert-danger {
    background-color: hsl(0, 85%, 97%);
    color: hsl(0, 75%, 35%);
}

.alert-success {
    background-color: hsl(140, 75%, 96%);
    color: hsl(140, 70%, 25%);
}

/* ==========================================
   LAYOUT: SIDEBAR & PAGE CONTENT
   ========================================== */
#wrapper {
    overflow-x: hidden;
    min-height: 100vh;
}

.sidebar-wrapper {
    min-width: 260px;
    max-width: 260px;
    min-height: 100vh;
    transition: margin 0.25s ease-out;
}

#page-content-wrapper {
    min-width: 0;
    width: 100%;
}

/* Sidebar Toggle Mechanics */
#wrapper.toggled .sidebar-wrapper {
    margin-left: -260px;
}

@media (min-width: 768px) {
    #wrapper.toggled .sidebar-wrapper {
        margin-left: -260px;
    }
}

@media (max-width: 767px) {
    .sidebar-wrapper {
        margin-left: -260px;
    }
    #wrapper.toggled .sidebar-wrapper {
        margin-left: 0;
    }
}

/* Sidebar Titles & Menu Styling */
.sidebar-heading {
    height: 60px;
}

.sidebar-section-title {
    font-size: 0.65rem;
    font-weight: 700;
    color: hsl(210, 10%, 65%);
    letter-spacing: 0.08em;
}

.list-group-item-action {
    color: hsl(210, 15%, 35%);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.list-group-item-action:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.active-menu {
    background-color: var(--primary-light) !important;
    color: var(--primary-color) !important;
    font-weight: 600;
}

.disabled-link {
    opacity: 0.6;
    cursor: not-allowed !important;
    pointer-events: none;
}

/* Top bar configuration */
header.navbar {
    height: 60px;
}

/* ==========================================
   DASHBOARD STATS CARDS & ALERTS
   ========================================== */
.stat-card {
    border-radius: var(--border-radius-sm);
    border: none;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    background: var(--white);
    border-left: 5px solid transparent;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* HSL Tailored Left-border Accents */
.border-primary-accent { border-left-color: var(--primary-color); }
.border-success-accent { border-left-color: hsl(140, 70%, 40%); }
.border-warning-accent { border-left-color: hsl(35, 90%, 50%); }
.border-danger-accent { border-left-color: hsl(0, 80%, 50%); }
.border-info-accent { border-left-color: var(--accent-color); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.icon-bg-primary { background-color: var(--primary-light); color: var(--primary-color); }
.icon-bg-success { background-color: hsl(140, 75%, 95%); color: hsl(140, 70%, 35%); }
.icon-bg-warning { background-color: hsl(35, 90%, 95%); color: hsl(35, 80%, 45%); }
.icon-bg-danger { background-color: hsl(0, 85%, 96%); color: hsl(0, 80%, 45%); }
.icon-bg-info { background-color: hsl(195, 85%, 94%); color: var(--accent-color); }

/* Expiry alerts list in tables */
.expiry-critical {
    color: hsl(0, 80%, 40%);
    font-weight: 600;
}
.row-expiry-alert {
    background-color: hsl(0, 85%, 98%) !important;
}

/* Badge highlights */
.badge-in-stock { background-color: hsl(140, 75%, 95%); color: hsl(140, 70%, 25%); border: 1px solid hsl(140, 70%, 85%); }
.badge-expiring { background-color: hsl(35, 90%, 95%); color: hsl(35, 85%, 35%); border: 1px solid hsl(35, 85%, 85%); }
.badge-out-stock { background-color: hsl(0, 85%, 96%); color: hsl(0, 80%, 35%); border: 1px solid hsl(0, 80%, 85%); }
.badge-low-stock { background-color: hsl(200, 85%, 94%); color: hsl(200, 80%, 30%); border: 1px solid hsl(200, 80%, 85%); }