:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-color: #f8fafc;
    --surface-color: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --sidebar-width: 280px;
    --header-height: 70px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

/* Layout */
.layout-wrapper {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--surface-color);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    overflow-y: auto;
    padding: 24px 0;
    z-index: 40;
    transition: transform 0.3s ease;
}

/* Custom Scrollbar for Sidebar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 20px;
}

.nav-menu {
    display: flex;
    flex-direction: column;
}

.nav-link {
    padding: 12px 24px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.nav-link:hover {
    background-color: #f1f5f9;
    color: var(--primary-color);
}

.nav-link.active {
    background-color: #eff6ff;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 40px;
    max-width: 1000px;
}

.content-section {
    display: none;
    animation: fadeIn 0.4s ease;
    background: var(--surface-color);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--text-main);
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 12px;
}

h2 {
    font-size: 1.5rem;
    margin: 32px 0 16px;
    color: var(--text-main);
}

p {
    margin-bottom: 16px;
    color: var(--text-muted);
}

ul {
    margin-bottom: 24px;
    padding-left: 24px;
    color: var(--text-muted);
}

li {
    margin-bottom: 8px;
}

li strong {
    color: var(--text-main);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.feature-card {
    background: var(--bg-color);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--text-main);
}

/* Highlight Text */
.highlight-text {
    background-color: #f8fafc;
    border-left: 4px solid var(--primary-color);
    padding: 16px 20px;
    border-radius: 4px;
    margin-bottom: 24px;
    font-size: 1.05rem;
    color: var(--text-main);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.highlight-text strong {
    color: var(--primary-color);
}

/* CTA Button */
.cta-button-container {
    margin: 24px 0 32px 0;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    color: #ffffff !important;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.45);
}

.cta-button i {
    margin-right: 10px;
    font-size: 1.1rem;
}

/* Status Steps */
.status-steps {
    display: flex;
    gap: 20px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
}

.step-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 12px;
}

.step h4 {
    margin-bottom: 8px;
    color: var(--text-main);
}

.info-box {
    background: #eff6ff;
    border-left: 4px solid var(--primary-color);
    padding: 16px;
    border-radius: 4px;
    margin: 24px 0;
    color: #1e3a8a;
    line-height: 1.7;
}

/* Footer */
.footer {
    text-align: center;
    padding: 24px;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    margin-left: var(--sidebar-width);
    color: var(--text-muted);
}



/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 4px 0 10px rgba(0,0,0,0.1);
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    
    .content-section {
        padding: 24px;
    }

    .footer {
        margin-left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }
    
    .status-steps {
        flex-direction: column;
    }
}