/* HPCI VoIP Platform - Main Stylesheet
   Brand Colors:
   - Primary Green: #7AC943
   - Primary Blue: #2E75B6
   - Dark Blue: #1a4971
   - Gray: #6c757d
   - Light Gray: #f8f9fa
   - Dark: #1a1a2e
*/

:root {
    --hpci-green: #7AC943;
    --hpci-green-dark: #5da832;
    --hpci-green-light: #a3d977;
    --hpci-blue: #2E75B6;
    --hpci-blue-dark: #1a4971;
    --hpci-blue-light: #4a9fd4;
    --hpci-gray: #6c757d;
    --hpci-gray-light: #f8f9fa;
    --hpci-gray-dark: #343a40;
    --hpci-dark: #1a1a2e;
    --hpci-darker: #0f0f1a;
    --hpci-white: #ffffff;
    --hpci-success: #28a745;
    --hpci-warning: #ffc107;
    --hpci-danger: #dc3545;
    --hpci-info: #17a2b8;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--hpci-gray-light);
    color: var(--hpci-gray-dark);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--hpci-dark);
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    background: linear-gradient(135deg, var(--hpci-dark) 0%, var(--hpci-darker) 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, var(--hpci-green) 0%, transparent 50%);
    opacity: 0.1;
    animation: pulse 15s ease-in-out infinite;
}

.login-page::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, var(--hpci-blue) 0%, transparent 50%);
    opacity: 0.1;
    animation: pulse 20s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.login-container {
    display: flex;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.login-brand {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 4rem;
    color: var(--hpci-white);
}

.login-brand .logo {
    max-width: 350px;
    margin-bottom: 2rem;
}

.login-brand h1 {
    color: var(--hpci-white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.login-brand p {
    color: rgba(255,255,255,0.8);
    font-size: 1.2rem;
    text-align: center;
    max-width: 400px;
}

.login-brand .tagline {
    color: var(--hpci-green);
    font-weight: 600;
    font-size: 1.5rem;
    margin-top: 1rem;
}

.login-brand .features {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-brand .feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255,255,255,0.9);
}

.login-brand .feature-item .icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--hpci-green), var(--hpci-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.login-form-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    background: var(--hpci-white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
}

.login-card h2 {
    color: var(--hpci-dark);
    margin-bottom: 0.5rem;
}

.login-card .subtitle {
    color: var(--hpci-gray);
    margin-bottom: 2rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid #e1e5eb;
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--hpci-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--hpci-blue);
    box-shadow: 0 0 0 3px rgba(46, 117, 182, 0.1);
}

.form-control::placeholder {
    color: #adb5bd;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--hpci-green), var(--hpci-green-dark));
    color: var(--hpci-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--hpci-green-dark), var(--hpci-green));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--hpci-blue-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--hpci-blue);
    color: var(--hpci-blue);
}

.btn-outline:hover {
    background: var(--hpci-blue);
    color: var(--hpci-white);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

/* Sidebar */
.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--hpci-dark) 0%, var(--hpci-darker) 100%);
    color: var(--hpci-white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-header .logo {
    max-width: 150px;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-section {
    padding: 0.5rem 1rem;
    margin-bottom: 0.5rem;
}

.nav-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    color: rgba(255,255,255,0.8);
    border-radius: var(--border-radius);
    margin: 0.25rem 0.5rem;
    transition: var(--transition);
    cursor: pointer;
}

.nav-item:hover {
    background: rgba(255,255,255,0.1);
    color: var(--hpci-white);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--hpci-green), var(--hpci-blue));
    color: var(--hpci-white);
}

.nav-item .icon {
    width: 24px;
    text-align: center;
    font-size: 1.1rem;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: rgba(255,255,255,0.05);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--hpci-green), var(--hpci-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

.user-details {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    background: var(--hpci-gray-light);
}

.content-header {
    background: var(--hpci-white);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e1e5eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.content-header h1 {
    font-size: 1.5rem;
    color: var(--hpci-dark);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.content-body {
    padding: 2rem;
}

/* Cards */
.card {
    background: var(--hpci-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #e1e5eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--hpci-dark);
}

.card-body {
    padding: 1.5rem;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--hpci-white);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.green {
    background: linear-gradient(135deg, rgba(122, 201, 67, 0.2), rgba(122, 201, 67, 0.1));
    color: var(--hpci-green);
}

.stat-icon.blue {
    background: linear-gradient(135deg, rgba(46, 117, 182, 0.2), rgba(46, 117, 182, 0.1));
    color: var(--hpci-blue);
}

.stat-icon.orange {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.2), rgba(255, 193, 7, 0.1));
    color: var(--hpci-warning);
}

.stat-icon.purple {
    background: linear-gradient(135deg, rgba(111, 66, 193, 0.2), rgba(111, 66, 193, 0.1));
    color: #6f42c1;
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--hpci-dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--hpci-gray);
    margin-top: 0.25rem;
}

.stat-change {
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

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

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

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

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

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e1e5eb;
}

.table th {
    font-weight: 600;
    color: var(--hpci-gray);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--hpci-gray-light);
}

.table tr:hover {
    background: rgba(122, 201, 67, 0.05);
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
}

.badge-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--hpci-success);
}

.badge-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #d39e00;
}

.badge-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--hpci-danger);
}

.badge-info {
    background: rgba(46, 117, 182, 0.1);
    color: var(--hpci-blue);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border-left: 4px solid var(--hpci-success);
    color: var(--hpci-success);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border-left: 4px solid var(--hpci-danger);
    color: var(--hpci-danger);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-left: 4px solid var(--hpci-warning);
    color: #856404;
}

.alert-info {
    background: rgba(46, 117, 182, 0.1);
    border-left: 4px solid var(--hpci-blue);
    color: var(--hpci-blue);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--hpci-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e1e5eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--hpci-gray-light);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--hpci-danger);
    color: var(--hpci-white);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e1e5eb;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(122, 201, 67, 0.2);
    border-top-color: var(--hpci-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .login-container {
        flex-direction: column;
    }
    
    .login-brand {
        padding: 2rem;
    }
    
    .login-brand .features {
        display: none;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .content-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .content-body {
        padding: 1rem;
    }
    
    .login-card {
        padding: 2rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--hpci-gray); }
.text-success { color: var(--hpci-success); }
.text-danger { color: var(--hpci-danger); }
.text-primary { color: var(--hpci-blue); }
.text-green { color: var(--hpci-green); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

.hidden { display: none !important; }