/* IVR Medication Tracking System - Stylesheet */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --light: #f8fafc;
    --dark: #1e293b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.navbar {
    background: var(--dark);
    color: white;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-links a {
    color: #94a3b8;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: white;
    background: rgba(255,255,255,0.1);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user span {
    color: #94a3b8;
}

.btn-logout {
    background: var(--danger);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.875rem;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Dashboard Row */
.dashboard-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 992px) {
    .dashboard-row {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.blue { background: #dbeafe; }
.stat-icon.green { background: #dcfce7; }
.stat-icon.yellow { background: #fef3c7; }
.stat-icon.purple { background: #f3e8ff; }

.stat-info h3 {
    font-size: 1.75rem;
    font-weight: 700;
}

.stat-info p {
    color: var(--secondary);
    font-size: 0.875rem;
}

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

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

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--light);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    color: var(--secondary);
}

tr:hover {
    background: #f8fafc;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

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

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-group {
    display: flex;
    gap: 0.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

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

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

select.form-control {
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.form-text {
    font-size: 0.8rem;
    color: var(--secondary);
    margin-top: 0.25rem;
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.form-check input {
    width: 18px;
    height: 18px;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.7;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-secondary { background: #e2e8f0; color: #475569; }

/* Tags */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary);
}

/* Charts Container */
.chart-container {
    position: relative;
    height: 300px;
    margin: 1rem 0;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--secondary);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.file-upload input {
    display: none;
}

/* Audio Player */
.audio-player {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.audio-player audio {
    height: 32px;
}

/* Question List */
.question-list {
    list-style: none;
}

.question-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.question-item .drag-handle {
    cursor: move;
    color: var(--secondary);
}

.question-item .question-content {
    flex: 1;
}

.question-item .question-type {
    font-size: 0.8rem;
    color: var(--secondary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.pagination a, .pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--dark);
}

.pagination a:hover {
    background: var(--light);
}

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

/* Footer */
.footer {
    background: var(--dark);
    color: #94a3b8;
    text-align: center;
    padding: 1rem;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: 1rem;
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .container {
        padding: 1rem;
    }
}

/* Text Utilities */
.text-danger {
    color: var(--danger);
}

.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

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

.text-center {
    text-align: center;
}

/* Button Variants */
.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-info {
    background: #0ea5e9;
    color: white;
}

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

/* Headings */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

/* Links */
a {
    color: var(--primary);
    transition: color 0.2s;
}

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

/* Loading Spinner */
.spinner {
    border: 3px solid var(--light);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* Sortable Dragging */
.sortable-ghost {
    opacity: 0.4;
    background: var(--light);
}

.sortable-drag {
    opacity: 0.8;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Print Styles */
@media print {
    .navbar, .btn, .footer, .no-print {
        display: none !important;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Mobile Responsive Improvements */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-wrap: wrap;
    }
    
    table {
        font-size: 0.875rem;
    }
    
    th, td {
        padding: 0.5rem;
    }
}