@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Smart & Premium Palette */
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.15);
    --secondary: #64748b;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    /* Light Mode */
    --bg-app: #f8fafc;
    --bg-surface: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --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);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --sidebar-width: 260px;
    --header-height: 72px;
    --radius: 12px;
}

[data-theme="dark"] {
    --bg-app: #020617;
    --bg-surface: #0f172a;
    --bg-glass: rgba(15, 23, 42, 0.8);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #1e293b;
    --primary-glow: rgba(99, 102, 241, 0.25);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
    transition: background-color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
}

/* --- Layout Structure --- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar - Web Version */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
}

.sidebar-logo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-menu {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.2s ease;
}

.sidebar-link i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.sidebar-link:hover {
    background: var(--bg-app);
    color: var(--text-main);
}

.sidebar-link.active {
    background: var(--primary-glow);
    color: var(--primary);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

/* Main Area */
.main-area {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.top-bar {
    height: var(--header-height);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 900;
}

.page-content {
    padding: 32px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    flex: 1;
}

/* --- Components --- */
.smart-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.smart-card:hover {
    box-shadow: var(--shadow-md);
}

.btn-primary-smart {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary-smart:hover {
    filter: brightness(1.1);
}

.btn-primary-smart:active {
    transform: scale(0.98);
}

/* --- Mobile Version Styles --- */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.active {
        transform: translateX(0);
        box-shadow: 20px 0 50px rgba(0,0,0,0.1);
    }
    
    .main-area {
        margin-left: 0;
    }
    
    .top-bar {
        padding: 0 16px;
        height: 64px;
    }
    
    .page-content {
        padding: 16px;
        padding-bottom: 100px;
    }
    
    .bottom-nav {
        display: flex !important;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 72px;
        background: var(--bg-glass);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-top: 1px solid var(--border);
        justify-content: space-around;
        align-items: center;
        z-index: 1000;
        padding: 0 12px;
    }
    
    .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        text-decoration: none;
        color: var(--text-muted);
        font-size: 11px;
        font-weight: 600;
        flex: 1;
    }
    
    .nav-item i {
        font-size: 20px;
        transition: all 0.2s ease;
    }
    
    .nav-item.active {
        color: var(--primary);
    }
    
    .nav-item.active i {
        transform: scale(1.1);
    }
    
    /* App-like feel for cards on mobile */
    .smart-card {
        padding: 20px;
        border-radius: 16px;
    }
}

/* --- Utility Classes --- */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.text-muted { color: var(--text-muted) !important; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

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

/* --- Inputs --- */
.smart-input {
    width: 100%;
    background: var(--bg-app);
    border: 1px solid var(--border);
    padding: 12px 16px;
    border-radius: 10px;
    color: var(--text-main);
    font-size: 15px;
    transition: all 0.2s ease;
}

.smart-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-surface);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

/* --- User Widget --- */
.user-widget {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: 100px;
    background: var(--bg-app);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-widget:hover {
    border-color: var(--primary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.user-info-text {
    line-height: 1.2;
}

.user-info-text .name {
    font-size: 13px;
    font-weight: 700;
}

.user-info-text .role {
    font-size: 11px;
    color: var(--text-muted);
}

/* --- Badges --- */
.badge-smart {
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.badge-primary { background: var(--primary-glow); color: var(--primary); }
.badge-success { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger); }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* --- Login Specific --- */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: radial-gradient(circle at top right, var(--primary-glow), transparent),
                radial-gradient(circle at bottom left, var(--primary-glow), transparent);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

/* --- Toast --- */
.md-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 20px;
    border-radius: 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 2000;
    min-width: 280px;
    animation: toastIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}