:root {
    --apple-bg: #f5f5f7;
    --apple-sidebar-bg: rgba(251, 251, 253, 0.8);
    --apple-text: #1d1d1f;
    --apple-text-secondary: #86868b;
    --apple-blue: #0066cc;
    --apple-border: rgba(0, 0, 0, 0.08);
    --apple-radius: 12px;
    --glass-blur: blur(20px);
}

body {
    background-color: var(--apple-bg);
    color: var(--apple-text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--apple-sidebar-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--apple-border);
    padding: 32px 20px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.sidebar h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    padding-left: 12px;
}

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

.sidebar-item {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    color: var(--apple-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--apple-radius);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 4px;
}

.sidebar-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.sidebar-item.active {
    background: var(--apple-blue);
    color: white;
}

.sidebar-item i {
    margin-right: 10px;
}

/* Main Content Wrapper */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.top-header {
    height: 64px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--apple-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 999;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e5e5e5;
    object-fit: cover;
}

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
    scroll-behavior: smooth;
}

.container-tight {
    max-width: 960px;
    margin: 0 auto;
}

/* Cards & Components */
.apple-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.apple-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
}

.btn-apple {
    background: #0071e3;
    color: white;
    border: none;
    border-radius: 20px;
    padding: 10px 24px;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-apple:hover {
    transform: scale(1.02);
    color: white;
}

.btn-secondary {
    background: #e8e8ed;
    color: #1d1d1f;
    border-radius: 20px;
    border: none;
    padding: 10px 24px;
    font-weight: 500;
}

.btn-secondary:hover {
    background: #d2d2d7;
    color: #1d1d1f;
}

/* Form Styles */
.form-control {
    border-radius: 12px;
    border: 1px solid #d2d2d7;
    padding: 12px 16px;
    background: #fbfbfd;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
    background: white;
}

/* Breadcrumbs */
.breadcrumb {
    font-size: 13px;
    margin-bottom: 16px;
}

.breadcrumb-item a {
    color: var(--apple-text-secondary);
    text-decoration: none;
}

.breadcrumb-item.active {
    color: var(--apple-text);
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}