/* ============================================
   GRANDSTREAM MISSED CALLS DASHBOARD - CSS
   Organized and optimized stylesheet
   Last updated: January 2026
   ============================================ */

/* ============================================
   1. ROOT VARIABLES
   ============================================ */
:root {
    /* Primary Brand Colors */
    --primary-color: #009879;
    --primary-dark: #007f64;
    --primary-light: #e8f5f1;
    --primary-light-transparent: rgba(0, 152, 121, 0.1);
    --secondary-color: #495057;
    --hover-color: #007f64;
    
    /* Neutral Palette */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Status Colors */
    --success-color: #28a745;
    --success-bg: #d4edda;
    --success-border: #c3e6cb;
    --warning-color: #856404;
    --warning-bg: #fff3cd;
    --warning-border: #ffeeba;
    --danger-color: #dc3545;
    --danger-bg: #f8d7da;
    --danger-border: #f5c6cb;
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: 'Courier New', Courier, monospace;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --line-height-base: 1.5;
    
    /* Spacing Scale */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-pill: 20px;
    
    /* Box Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-modal: 1050;
    --z-notification: 1500;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Common Values */
    --border-color: #ddd;
    --padding: 10px;
    --table-header-text-color: white;
}

/* ============================================
   2. BASE STYLES & RESET
   ============================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--gray-900);
    background-color: var(--gray-50);
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--spacing-md) 0;
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-800);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

p {
    margin: 0 0 var(--spacing-md) 0;
}

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

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

/* ============================================
   3. LAYOUT COMPONENTS
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

body > .container {
    padding-top: 100px;
    padding-bottom: 60px;
}

header .container {
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1400px;
}

/* ============================================
   4. HEADER & NAVIGATION
   ============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 15px 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1030;
}

header h1 {
    margin: 0;
    font-size: 1.2rem;
    color: white;
    white-space: nowrap;
}

#branding h1 {
    margin: 0;
}

#branding h1 i {
    margin-right: 6px;
}

.filter-group label i,
.call-controls i,
.search-controls i,
.export-button i,
.answer-call i,
button i {
    margin-right: 4px;
}

nav {
    display: flex;
    gap: var(--spacing-sm);
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-sm);
}

nav li {
    margin: 0;
    padding: 0;
}

nav a {
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

nav a i {
    margin-right: 4px;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* ============================================
   5. TABLES
   ============================================ */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.styled-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border-radius: var(--border-radius-md);
}

.styled-table thead tr {
    background-color: var(--primary-color);
    color: white;
    text-align: left;
}

.styled-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid var(--primary-dark);
    position: sticky;
    top: 0;
    z-index: 2;
}

.styled-table th i {
    margin-right: 4px;
}

.styled-table th a {
    color: var(--table-header-text-color);
    text-decoration: none;
}

.styled-table th a:hover {
    text-decoration: underline;
}

.styled-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    transition: background-color var(--transition-fast);
    text-align: left;
}

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

.styled-table tbody tr:nth-of-type(even) {
    background-color: var(--gray-50);
}

.styled-table tbody tr:last-of-type {
    border-bottom: 2px solid var(--primary-color);
}

/* Table Wrapper */
.table-wrapper {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

/* Sortable Headers */
.sortable {
    cursor: pointer;
    position: relative;
    padding-right: 25px;
    user-select: none;
}

.sort-icon {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.7;
}

.sortable:hover {
    background-color: var(--primary-dark);
    color: white;
}

.sortable:hover .sort-icon {
    opacity: 1;
    color: white;
    transform: translateY(-50%) scale(1.2);
    transition: all var(--transition-fast);
}

.sort-icon.active {
    color: white;
    text-shadow: 0 0 2px rgba(0, 0, 0, 0.3);
}

/* Call Table Specific */
#calls-table td {
    font-size: var(--font-size-sm);
}

#calls-table td:first-child {
    white-space: nowrap;
}

/* No Results Message */
.no-results {
    background-color: var(--gray-50);
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--gray-500);
}

/* ============================================
   6. FORMS & INPUTS
   ============================================ */
form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    transition: border-color var(--transition-fast);
    outline: none;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="date"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light-transparent);
}

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

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

/* Form Controls */
.call-controls,
.device-controls,
.user-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    width: 100%;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
}

.search-input,
#call-search,
#searchInput,
.filter-select,
#deviceFilter {
    width: 100%;
    min-width: 150px;
}

.export-button {
    width: 100%;
    margin-left: 0;
}

textarea#description {
    width: 100%;
    min-height: 100px;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   7. BUTTONS
   ============================================ */
button,
.button,
.edit-button,
.delete-button,
.edit-user-link,
.delete-user,
.edit-device {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

/* Button Variants */
button,
.button,
.edit-button,
.edit-user-link,
.edit-device {
    background-color: var(--secondary-color);
    color: white;
}

button:hover,
.button:hover,
.edit-button:hover,
.edit-user-link:hover,
.edit-device:hover {
    background-color: var(--hover-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.delete-button,
.delete-user {
    background-color: var(--danger-color);
    color: white;
}

.delete-button:hover,
.delete-user:hover {
    background-color: #c82333;
}

button:active,
.button:active {
    transform: translateY(1px);
}

button:disabled,
.button:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Answer Call Button */
.answer-call {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.answer-call:hover {
    background-color: var(--primary-dark);
}

.answer-call:active {
    transform: scale(0.95);
}

/* Device Actions */
.device-actions {
    display: flex;
    gap: var(--spacing-sm);
}

#add-device-link {
    margin-bottom: var(--spacing-md);
}

/* ============================================
   8. STATS & CALL STATUS
   ============================================ */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    width: 100%;
    margin-top: 0;
}

.stat-box {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-fast);
}

.stat-box:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-box h3 {
    margin: 0;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.5px;
}

.stat-box h3 i {
    margin-right: 4px;
}

.stat-box p {
    margin: var(--spacing-sm) 0 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
}

/* Call Stats */
.call-stats {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-around;
    align-items: center;
    margin: var(--spacing-md) 0;
}

.call-stats span {
    margin: 0;
    padding: 0 var(--spacing-sm);
    font-size: 1.2em;
    display: flex;
    align-items: center;
}

.call-stats i {
    margin-right: var(--spacing-xs);
}

.recent-calls {
    margin-top: var(--spacing-md);
}

/* Call Status Badges */
.call-status {
    display: inline-block;
    padding: 5px 12px;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    min-width: 90px;
}

.call-status.pending {
    background-color: #fff3cd;
    color: #856404;
}

.call-status.answered {
    background-color: #d4edda;
    color: #155724;
}

.call-status.missed {
    background-color: #f8d7da;
    color: #721c24;
}

.answer-info {
    margin-top: var(--spacing-xs);
    font-size: 0.85em;
    color: var(--gray-600);
    font-style: italic;
    padding: var(--spacing-xs) 0;
}

.answer-info small {
    display: block;
    line-height: 1.5;
    color: var(--gray-500);
}

.answer-info strong {
    color: var(--primary-color);
    font-weight: 600;
}

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

.modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    background-color: white;
    padding: var(--spacing-lg);
    width: 90%;
    max-width: 500px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

.close {
    position: absolute;
    right: var(--spacing-md);
    top: var(--spacing-md);
    font-size: 24px;
    color: var(--gray-600);
    cursor: pointer;
    line-height: 1;
    z-index: 1002;
    transition: color var(--transition-fast);
}

.close:hover {
    color: var(--gray-900);
}

/* Device Modal */
#device-modal .modal-content {
    max-height: 80vh;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

#device-modal form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: 0;
}

#device-modal button[type="submit"] {
    height: 40px;
    min-width: 100px;
    margin-top: 25px;
}

#device-modal select[multiple] {
    width: 100%;
    min-height: 100px;
}

#device-modal textarea {
    min-height: 40px;
    max-height: 80px;
    resize: vertical;
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin: 0;
}

/* ============================================
   10. NOTIFICATIONS & ALERTS
   ============================================ */
/* Flash Notifications */
.flash-notification {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: white;
    color: var(--gray-900);
    border-radius: var(--border-radius-md);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.2);
    width: 320px;
    transform: translateX(350px);
    transition: transform var(--transition-normal);
    z-index: var(--z-notification);
    overflow: hidden;
    border-left: 4px solid var(--danger-color);
}

.flash-notification.show {
    transform: translateX(0);
}

.flash-title {
    background: var(--danger-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: bold;
    border-bottom: 1px solid var(--danger-border);
    color: #721c24;
}

.flash-message {
    padding: var(--spacing-md);
}

.flash-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.1);
    border: none;
    color: #721c24;
    font-size: 20px;
    cursor: pointer;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    padding: 0;
    line-height: 1;
    transition: background 0.2s, color 0.2s;
}

.flash-close:hover {
    background: rgba(0, 0, 0, 0.2);
    color: #4a0e14;
}

/* Status Indicator */
.notification-indicator {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: var(--z-dropdown);
    display: flex;
    align-items: center;
    justify-content: center;
}

.notification-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.notification-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-pill);
    white-space: nowrap;
}

.notification-item.online,
.notification-item.active {
    background: var(--success-bg);
    color: #155724;
}

.notification-item.offline,
.notification-item.inactive {
    background: var(--danger-bg);
    color: #721c24;
}

.notification-item.reconnecting {
    background: var(--warning-bg);
    color: var(--warning-color);
}

.notification-item i {
    margin-right: var(--spacing-sm);
    font-size: var(--font-size-sm);
    width: 16px;
    text-align: center;
}

.notification-item span {
    font-size: var(--font-size-sm);
}

/* Connection Status */
.connection-status {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-pill);
    font-size: var(--font-size-sm);
    font-weight: 500;
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow-sm);
    opacity: 0.9;
}

.connection-status.online {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #81c784;
}

.connection-status.offline {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

.connection-status:hover {
    opacity: 1;
}

/* ============================================
   11. LOGIN PAGE
   ============================================ */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--gray-100);
}

.login-form {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
}

.login-form h1 {
    text-align: center;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.login-form h1 i {
    color: var(--primary-color);
    margin-right: 6px;
}

.input-icon-group {
    position: relative;
    margin: var(--spacing-sm) 0;
}

.input-icon-group i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-size: 14px;
    pointer-events: none;
}

.input-icon-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 38px !important;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.input-icon-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

.login-form input {
    width: 100%;
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-sizing: border-box;
}

.login-form button {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    margin-top: var(--spacing-md);
    font-weight: 500;
}

.login-form button:hover {
    background-color: var(--primary-dark);
}

.login-form button:active {
    transform: scale(0.95);
}

.error-message {
    color: var(--danger-color);
    text-align: center;
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-sm);
    background-color: var(--danger-bg);
    border-radius: var(--border-radius-sm);
}

/* ============================================
   12. PAGINATION
   ============================================ */
.pagination-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: var(--spacing-md) 0;
    gap: var(--spacing-sm);
}

.pagination-info {
    color: var(--gray-600);
    font-size: 0.9em;
}

.pagination {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.pagination-link {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: 0 2px;
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    min-width: 30px;
    text-align: center;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background-color: var(--gray-100);
    border-color: var(--primary-color);
}

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

.pagination-link.disabled {
    color: var(--gray-400);
    pointer-events: none;
    border-color: var(--gray-200);
}

.pagination-ellipsis {
    padding: var(--spacing-xs);
    color: var(--gray-600);
}

.items-per-page {
    display: flex;
    align-items: center;
    margin-left: var(--spacing-md);
    gap: var(--spacing-xs);
}

.items-per-page select {
    padding: var(--spacing-xs);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

/* ============================================
   13. RESPONSIVE - TABLET
   ============================================ */
@media screen and (min-width: 768px) {
    /* Form Controls - Desktop Layout */
    .call-controls,
    .device-controls,
    .user-controls {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .filter-group {
        flex-direction: row;
        align-items: center;
        width: auto;
        flex: 1;
    }

    .search-input,
    #call-search,
    #searchInput {
        max-width: 300px;
    }

    .filter-select,
    #deviceFilter {
        max-width: 200px;
    }

    .export-button {
        width: auto;
        min-width: 100px;
        margin-left: auto;
    }

    input[type="date"] {
        min-width: 130px;
        width: auto;
    }
}

/* ============================================
   14. RESPONSIVE - MOBILE
   ============================================ */
@media screen and (max-width: 767px) {
    /* Base Typography */
    body {
        font-size: 15px;
        line-height: 1.6;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.1rem; }

    /* Container Adjustments */
    body > .container {
        padding: var(--spacing-sm);
        padding-top: 140px;
        padding-bottom: 80px;
    }

    /* Header Mobile */
    header {
        padding: 12px 10px;
    }

    header .container {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    #branding h1 {
        font-size: 1rem;
        line-height: 1.3;
    }

    nav {
        width: 100%;
    }

    nav ul {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 6px;
    }

    nav li {
        flex: 1;
        min-width: calc(50% - 3px);
    }

    nav a {
        display: block;
        padding: 10px 8px;
        font-size: 13px;
        text-align: center;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--border-radius-sm);
    }

    /* Table Mobile - Card Layout */
    .styled-table thead {
        display: none;
    }

    .styled-table,
    .styled-table tbody,
    .styled-table tr,
    .styled-table td {
        display: block;
        width: 100%;
    }

    .styled-table tr {
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--gray-200);
        border-radius: var(--border-radius-md);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
    }

    .styled-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--gray-200);
        text-align: right;
    }

    .styled-table td::before {
        content: attr(data-label);
        font-weight: 600;
        text-align: left;
        flex: 0 0 40%;
        color: var(--gray-700);
        font-size: 0.9em;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    /* Enhanced mobile data display */
    .styled-table td[data-label="Vreme"],
    .styled-table td[data-label="Datum"],
    .styled-table td[data-label="Datum i vreme"] {
        font-family: var(--font-family-mono);
        padding-left: var(--spacing-md);
    }

    .styled-table td[data-label="Broj"],
    .styled-table td[data-label="Telefon"],
    .styled-table td[data-label="Pozvao"] {
        font-family: var(--font-family-mono);
        font-size: 1.1em;
        font-weight: 500;
        letter-spacing: 0.5px;
        border-left: 2px solid var(--primary-color);
        padding-left: var(--spacing-md);
    }

    .styled-table td[data-label="Trajanje"] {
        border-left: 2px solid var(--secondary-color);
        padding-left: var(--spacing-md);
    }

    .styled-table td[data-label="Status"] {
        background-color: var(--gray-50);
        border-left: 3px solid var(--gray-400);
        padding-left: var(--spacing-md);
    }

    .styled-table td::after {
        content: "";
        position: absolute;
        left: 40%;
        top: var(--spacing-md);
        bottom: var(--spacing-md);
        width: 1px;
        background-color: var(--gray-200);
    }

    /* Call Status Mobile */
    .call-status {
        min-width: 100px;
        padding: 8px 12px;
        font-size: 13px;
        font-weight: 500;
    }

    .styled-table td[data-label="Status"] .call-status {
        width: 100%;
    }

    .styled-table tbody tr td:first-child {
        background-color: var(--gray-100);
        border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
        border-top: none;
    }

    .styled-table tbody tr td:last-child {
        border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
        border-bottom: none;
    }

    /* Stats Container Mobile */
    .stats-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin: var(--spacing-sm) 0;
    }

    .stat-box {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .stat-box h3 {
        font-size: 0.75rem;
        margin-bottom: var(--spacing-xs);
    }

    .stat-box p {
        font-size: 1.8rem;
        margin-top: var(--spacing-xs);
    }

    /* Call Stats Mobile */
    .call-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* Pagination Mobile */
    .pagination-container {
        padding: 0 var(--spacing-sm);
        max-width: 100%;
    }

    .pagination {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .pagination-link {
        margin: 2px 0;
        width: 100%;
    }

    .items-per-page {
        margin: var(--spacing-sm) 0 0 0;
    }

    /* Buttons - Better Touch Targets */
    button,
    .button,
    .edit-button,
    .delete-button,
    .answer-call {
        min-height: 44px;
        padding: 12px 16px;
        font-size: 15px;
    }

    /* Form Controls */
    input[type="text"],
    input[type="password"],
    input[type="date"],
    input[type="email"],
    select,
    textarea {
        min-height: 44px;
        font-size: 16px;
        padding: 12px;
    }

    /* Table Actions */
    .device-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .device-actions button,
    .device-actions a {
        width: 100%;
    }

    /* Connection Status */
    .connection-status {
        bottom: auto;
        top: 70px;
        right: 10px;
        font-size: 12px;
        padding: 6px 12px;
    }

    /* Modal Content */
    .modal-content {
        width: 95%;
        padding: var(--spacing-md);
        max-height: 90vh;
        overflow-y: auto;
    }

    /* Login Form Mobile */
    .login-form {
        padding: var(--spacing-md);
        max-width: 100%;
        margin: var(--spacing-sm);
    }

    .login-form input,
    .login-form button {
        min-height: 44px;
        font-size: 16px;
    }
}

/* ============================================
   ADMIN PANEL STYLES
   ============================================ */

/* Alerts */
.alert {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    z-index: var(--z-notification);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 300px;
    max-width: 500px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { transform: translateX(-50%) translateY(-20px); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Admin Summary Bar */
.admin-summary {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.summary-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

.summary-item i {
    color: var(--primary-color);
    font-size: 1.1em;
}

.summary-item strong {
    color: var(--gray-900);
    font-size: 1.2em;
}

/* Admin Section */
.admin-section {
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.section-header h2 {
    margin: 0;
    font-size: 1.15rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-header h2 i {
    color: var(--primary-color);
}

.section-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.section-search {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-pill);
    font-size: var(--font-size-sm);
    outline: none;
    min-width: 200px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.section-search:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light-transparent);
}

.btn-add {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-pill);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-add:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Role Badges */
.role-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--border-radius-pill);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-admin {
    background-color: #e8eaf6;
    color: #283593;
}

.role-korisnik {
    background-color: #e0f2f1;
    color: #00695c;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    border-radius: var(--border-radius-pill);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.status-badge i {
    font-size: 6px;
}

.status-active {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.status-inactive {
    background-color: #ffebee;
    color: #c62828;
}

.status-maintenance {
    background-color: #fff3e0;
    color: #e65100;
}

/* User Avatar */
.user-name-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

/* Device Name Cell */
.device-name-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.device-name-cell i {
    color: var(--primary-color);
    font-size: 1.1em;
}

/* Serial Code */
.serial-code {
    font-family: var(--font-family-mono);
    font-size: 12px;
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    color: var(--gray-700);
}

/* Device & Admin Badges */
.device-count-badge,
.admin-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    background: var(--gray-100);
    color: var(--gray-700);
}

.device-count-badge i,
.admin-badge i {
    font-size: 10px;
    color: var(--primary-color);
}

/* Text Muted */
.text-muted {
    color: var(--gray-400);
    font-size: var(--font-size-sm);
}

/* Login Time */
.login-time {
    font-size: 13px;
    color: var(--gray-600);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md) !important;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.action-buttons .edit-button,
.action-buttons .delete-button {
    font-size: 12px;
    padding: 4px 10px;
}

.action-buttons .edit-button i,
.action-buttons .delete-button i {
    font-size: 11px;
}

/* Modal Improvements */
.modal-content h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-800);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-light);
}

.modal-content h2 i {
    color: var(--primary-color);
}

.modal-lg {
    max-width: 600px;
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label i {
    color: var(--primary-color);
    font-size: 12px;
}

.form-hint {
    font-size: 11px;
    color: var(--gray-500);
    margin-top: 2px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* Multi Select */
.multi-select {
    min-height: 80px;
    max-height: 120px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-sm);
}

.multi-select option {
    padding: 4px 8px;
}

.multi-select option:checked {
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* Submit Button */
.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-sm);
}

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

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Admin Section in table */
.admin-section .styled-table {
    border-radius: 0;
    box-shadow: none;
}

.admin-section .table-wrapper {
    margin: 0;
}

/* Mobile: Admin Panel */
@media screen and (max-width: 767px) {
    .admin-summary {
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .summary-item {
        flex: 1;
        min-width: calc(50% - var(--spacing-sm));
        justify-content: center;
        padding: var(--spacing-sm);
        background: var(--gray-50);
        border-radius: var(--border-radius-sm);
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
    }

    .section-actions {
        flex-direction: column;
    }

    .section-search {
        min-width: 100%;
    }

    .btn-add {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .modal-content h2 {
        font-size: 1.1rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .edit-button,
    .action-buttons .delete-button {
        width: 100%;
        justify-content: center;
    }

    .alert {
        min-width: calc(100% - 32px);
        max-width: calc(100% - 32px);
        top: 70px;
    }

    .user-avatar {
        display: none;
    }

    .serial-code {
        word-break: break-all;
    }
}

/* ============================================
   15. PRINT STYLES
   ============================================ */
@media print {
    .notification-indicator,
    .call-controls,
    .pagination-container,
    header nav,
    button,
    .button,
    .edit-button,
    .delete-button {
        display: none;
    }

    .container {
        padding-top: var(--spacing-sm);
    }

    .styled-table {
        box-shadow: none;
    }
}

/* ============================================
   16. TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: white;
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    font-size: 14px;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast i {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-success {
    border-left: 4px solid var(--success-color);
}

.toast-success i {
    color: var(--success-color);
}

.toast-error {
    border-left: 4px solid var(--danger-color);
}

.toast-error i {
    color: var(--danger-color);
}

.toast-warning {
    border-left: 4px solid var(--warning-color);
}

.toast-warning i {
    color: var(--warning-color);
}

.toast-info {
    border-left: 4px solid #17a2b8;
}

.toast-info i {
    color: #17a2b8;
}

/* ===========================
   Notification Settings Panel (overlay modal with toggle switches)
   =========================== */
.notif-settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.notif-settings-overlay.show {
    opacity: 1;
}

.notif-settings-panel {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    width: 420px;
    max-width: calc(100vw - 32px);
    transform: translateY(20px) scale(0.96);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.notif-settings-overlay.show .notif-settings-panel {
    transform: translateY(0) scale(1);
}

.notif-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.notif-settings-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notif-settings-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}

.notif-settings-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
}

.notif-settings-body {
    padding: 8px 0;
}

.notif-setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 22px;
    transition: background 0.15s;
}

.notif-setting-row:hover {
    background: #f8f9fa;
}

.notif-setting-info {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
    min-width: 0;
}

.notif-setting-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #e3f2fd;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.notif-setting-label {
    min-width: 0;
}

.notif-setting-label strong {
    display: block;
    font-size: 14px;
    color: #212529;
    margin-bottom: 2px;
}

.notif-setting-label span {
    font-size: 12px;
    color: #6c757d;
}

.settings-note {
    padding: 10px 22px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-note.warning {
    color: #856404;
    background: #fff3cd;
}

.notif-settings-footer {
    padding: 12px 22px;
    border-top: 1px solid #e9ecef;
    background: #f8f9fa;
}

.notif-settings-hint {
    font-size: 12px;
    color: #6c757d;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    border-radius: 26px;
    transition: background-color 0.3s;
}

.toggle-slider::before {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background-color: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: #4caf50;
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

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

.toggle-switch.disabled .toggle-slider {
    background-color: #e0e0e0;
}

/* Settings button in status bar */
.notification-item.settings-btn {
    background: transparent;
    color: var(--gray-600);
    cursor: pointer;
    border: 1px solid var(--gray-300);
    transition: background 0.2s, color 0.2s;
}

.notification-item.settings-btn:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* Mobile responsive - Settings Panel */
@media (max-width: 768px) {
    .notif-settings-overlay {
        align-items: flex-end;
    }

    .notif-settings-panel {
        width: 100%;
        max-width: 100%;
        border-radius: 16px 16px 0 0;
        max-height: 85vh;
        overflow-y: auto;
    }

    .notif-settings-overlay.show .notif-settings-panel {
        transform: translateY(0) scale(1);
    }

    .notif-settings-header {
        padding: 20px;
    }

    .notif-settings-header h3 {
        font-size: 17px;
    }

    .notif-setting-row {
        padding: 18px 20px;
    }

    .notif-setting-icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .notif-setting-label strong {
        font-size: 15px;
    }

    .notif-setting-label span {
        font-size: 13px;
    }

    .toggle-switch {
        width: 52px;
        height: 28px;
    }

    .toggle-slider::before {
        width: 22px;
        height: 22px;
    }

    .toggle-switch input:checked + .toggle-slider::before {
        transform: translateX(24px);
    }

    .settings-note {
        padding: 12px 20px;
        font-size: 13px;
    }

    .notif-settings-footer {
        padding: 14px 20px;
    }

    .notif-settings-hint {
        font-size: 13px;
    }

    /* Status bar mobile improvements */
    .notification-indicator {
        padding: 8px 6px;
    }

    .notification-status {
        width: 100%;
        justify-content: center;
        gap: 4px;
    }

    .notification-item {
        font-size: 11px;
        padding: 5px 7px;
        gap: 3px;
    }

    .notification-item i {
        font-size: 11px;
        margin-right: 3px;
    }

    .notification-item span {
        font-size: 11px;
    }

    .notification-item.settings-btn span {
        display: none;
    }

    .notification-item.settings-btn {
        padding: 5px 8px;
    }

    /* Toast mobile */
    .toast-container {
        left: 10px;
        right: 10px;
        top: 10px;
    }

    .toast {
        min-width: auto;
        max-width: none;
    }

    /* Flash notification mobile */
    .flash-notification {
        width: calc(100% - 32px);
        right: 16px;
    }
}

@media (max-width: 480px) {
    .notification-item span {
        display: none;
    }

    .notification-item {
        padding: 6px 8px;
    }

    .notification-item i {
        margin-right: 0;
        font-size: 14px;
    }

    .notification-status {
        gap: 6px;
    }
}