/* Reset and Base Styles */

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    margin-bottom: 20px;
}


/* Header Styles */

.header {
    text-align: center;
    padding: 40px 0;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 15px;
    margin-bottom: 40px;
    color: white;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.header-content {
    position: relative;
    z-index: 2;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.logo i {
    font-size: 2.5rem;
    animation: pulse 2s infinite;
}

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

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.9;
}


/* Section Headers */

.section-header {
    margin-bottom: 30px;
    text-align: center;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #2c3e50;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.section-header i {
    color: #4facfe;
    font-size: 1.8rem;
}


/* Introduction Section */

.introduction {
    margin-bottom: 50px;
}

.content-box {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #4facfe;
}

.content-box p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #555;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature-card {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    color: white;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.feature-card i {
    font-size: 2rem;
    margin-bottom: 15px;
    display: block;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    opacity: 0.9;
}


/* Key Features Section */

.key-features {
    margin-bottom: 50px;
}

.feature-section {
    background: white;
    margin-bottom: 40px;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #e74c3c;
    transition: transform 0.3s ease;
}

.feature-section:hover {
    transform: translateX(5px);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.feature-icon.inbound {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.feature-icon.outbound {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.feature-icon.management {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.feature-icon.analytics {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.feature-title h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 8px;
    font-weight: 600;
}

.feature-title p {
    color: #666;
    font-size: 1rem;
}

.feature-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: background 0.3s ease;
}

.detail-item:hover {
    background: #e9ecef;
}

.detail-item i {
    color: #4facfe;
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}


/* Diagram Styles */

.diagram-container {
    margin-top: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    border: 2px dashed #dee2e6;
}

.diagram-container h4 {
    text-align: center;
    margin-bottom: 20px;
    color: #495057;
    font-weight: 600;
}


/* Flow Diagram */

.flow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    padding: 20px;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    transition: transform 0.3s ease;
}

.flow-step:hover {
    transform: scale(1.05);
}

.step-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.flow-step span {
    font-weight: 500;
    color: #495057;
    text-align: center;
    font-size: 0.9rem;
}

.flow-arrow {
    font-size: 1.5rem;
    color: #4facfe;
    font-weight: bold;
}


/* Dialing Modes */

.dialing-modes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    padding: 20px;
}

.mode-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid #4facfe;
}

.mode-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.mode-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: white;
    font-size: 1.5rem;
}

.mode-card h5 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 600;
}

.mode-card p {
    color: #666;
    font-size: 0.9rem;
}


/* Management Features */

.management-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    padding: 20px;
}

.management-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.management-item:hover {
    transform: scale(1.05);
}

.management-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.management-item span {
    font-weight: 500;
    color: #495057;
    font-size: 0.9rem;
}


/* Analytics Dashboard */

.analytics-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    padding: 20px;
}

.dashboard-section {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.dashboard-section h5 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.dashboard-section h5 i {
    color: #4facfe;
}

.monitoring-features {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.monitor-item {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: background 0.3s ease;
}

.metric-item:hover {
    background: #e9ecef;
}

.metric-item i {
    color: #4facfe;
    font-size: 1.2rem;
}

.metric-item span {
    font-size: 0.85rem;
    color: #495057;
    text-align: center;
    font-weight: 500;
}


/* Architecture Diagram */

.architecture {
    margin-bottom: 50px;
}

.architecture-diagram {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.arch-layer {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 20px;
    border-left: 5px solid #4facfe;
}

.arch-layer h4 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.arch-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.arch-component {
    background: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
    color: #495057;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.arch-component:hover {
    transform: scale(1.05);
}

.arch-arrow {
    text-align: center;
    font-size: 2rem;
    color: #4facfe;
    margin: 10px 0;
    font-weight: bold;
}


/* Footer */

.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 40px;
}

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

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4facfe;
}


/* Responsive Design */

@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 15px;
    }
    .logo h1 {
        font-size: 2rem;
    }
    .subtitle {
        font-size: 1rem;
    }
    .section-header h2 {
        font-size: 1.5rem;
    }
    .feature-header {
        flex-direction: column;
        text-align: center;
    }
    .flow-diagram {
        flex-direction: column;
    }
    .flow-arrow {
        transform: rotate(90deg);
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .dialing-modes {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    .management-features {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    .logo h1 {
        font-size: 1.8rem;
    }
    .feature-details {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .dialing-modes {
        grid-template-columns: 1fr;
    }
    .management-features {
        grid-template-columns: repeat(2, 1fr);
    }
    .analytics-dashboard {
        grid-template-columns: 1fr;
    }
    .arch-components {
        grid-template-columns: 1fr;
    }
}


/* Animation Classes */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-section {
    animation: fadeInUp 0.6s ease-out;
}

.feature-section:nth-child(2) {
    animation-delay: 0.1s;
}

.feature-section:nth-child(3) {
    animation-delay: 0.2s;
}

.feature-section:nth-child(4) {
    animation-delay: 0.3s;
}

.feature-section:nth-child(5) {
    animation-delay: 0.4s;
}


/* Scrollbar Styling */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}