/* Pharmacy Management System - Main Stylesheet */

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
    --white: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --sidebar-width: 260px;
    --header-height: 70px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

a:hover {
    color: var(--secondary-color);
}

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 450px;
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo i {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-logo h2 {
    color: var(--text-primary);
    margin-bottom: 5px;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-header i {
    font-size: 32px;
    color: var(--primary-color);
}

.sidebar-header h3 {
    margin: 0;
    font-size: 20px;
    color: var(--text-primary);
}

.sidebar-menu {
    padding: 20px 0;
}

.menu-section {
    margin-bottom: 20px;
}

.menu-section-title {
    padding: 10px 20px;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-primary);
    transition: var(--transition);
    cursor: pointer;
}

.menu-item:hover {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.menu-item.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-left: 4px solid var(--secondary-color);
}

.menu-item i {
    font-size: 18px;
    margin-right: 12px;
    width: 24px;
    text-align: center;
}

.menu-item .badge {
    margin-left: auto;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
    background-color: var(--light-color);
}

/* Top Bar */
.top-bar {
    height: var(--header-height);
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.menu-toggle {
    font-size: 24px;
    color: var(--text-primary);
    cursor: pointer;
    display: none;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 10px 40px 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 300px;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.notification-icon,
.settings-icon {
    position: relative;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.notification-icon:hover,
.settings-icon:hover {
    color: var(--primary-color);
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger-color);
    color: var(--white);
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 15px;
    border-radius: 8px;
    transition: var(--transition);
}

.user-profile:hover {
    background-color: var(--light-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info h5 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.user-info span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Content Area */
.content-area {
    padding: 30px;
}

.page-header {
    margin-bottom: 30px;
}

.page-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 13px;
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

/* Cards */
.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
    overflow: hidden;
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h4 {
    margin: 0;
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-color);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--white);
}

.stat-icon.primary { background: var(--primary-color); }
.stat-icon.success { background: var(--success-color); }
.stat-icon.warning { background: var(--warning-color); }
.stat-icon.danger { background: var(--danger-color); }

.stat-info h3 {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
}

.stat-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 13px;
}

.stat-info .change {
    font-size: 12px;
    margin-top: 5px;
}

.stat-info .change.positive {
    color: var(--success-color);
}

.stat-info .change.negative {
    color: var(--danger-color);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: #1d4ed8;
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

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

.btn-warning:hover:not(:disabled) {
    background: #d97706;
}

.btn-secondary {
    background: var(--text-secondary);
    color: var(--white);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--dark-color);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--light-color);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label.required::after {
    content: " *";
    color: var(--danger-color);
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
}

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

.form-control:disabled {
    background-color: var(--light-color);
    cursor: not-allowed;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background-color: var(--light-color);
}

.table th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background-color: var(--light-color);
}

.table-striped tbody tr:nth-child(even) {
    background-color: #f9fafb;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 6px;
    text-transform: capitalize;
}

.badge-primary { background: #dbeafe; color: var(--primary-color); }
.badge-success { background: #d1fae5; color: var(--success-color); }
.badge-danger { background: #fee2e2; color: var(--danger-color); }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-info { background: #cffafe; color: var(--info-color); }
.badge-secondary { background: #e5e7eb; color: var(--text-secondary); }
.badge-dark { background: var(--dark-color); color: var(--white); }

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert i {
    font-size: 20px;
}

.alert-success {
    background: #d1fae5;
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.alert-danger {
    background: #fee2e2;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.alert-warning {
    background: #fef3c7;
    color: #b45309;
    border: 1px solid var(--warning-color);
}

.alert-info {
    background: #cffafe;
    color: var(--info-color);
    border: 1px solid var(--info-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-dialog {
    background: var(--white);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h4 {
    margin: 0;
}

.modal-close {
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.pagination a:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-secondary { color: var(--text-secondary); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .search-box input {
        width: 200px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-responsive {
        font-size: 12px;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--light-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}