:root {
    --primary: #B61C5B; /* Gurubaa Brand Color */
    --primary-hover: #9A154A;
    --primary-light: #FCE7F3;
    --secondary: #10B981;
    --secondary-hover: #059669;
    --danger: #EF4444;
    --danger-hover: #DC2626;
    --background: #F9FAFB;
    --surface: #FFFFFF;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --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);
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-main);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }

.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-muted { color: var(--text-muted); }

/* Components */
.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background-color: var(--surface);
    color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.invalid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--danger);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: white;
}

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

.btn-secondary:hover {
    background-color: var(--secondary-hover);
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--background);
    border-color: var(--text-muted);
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    border: 1px solid transparent;
}

.alert-success {
    background-color: #ECFDF5;
    color: #065F46;
    border-color: #A7F3D0;
}

.alert-danger {
    background-color: #FEF2F2;
    color: #991B1B;
    border-color: #FECACA;
}

/* Layouts */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: all 0.2s;
}

.nav-item:hover, .nav-item.active {
    background-color: var(--primary-light);
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background-color: var(--background);
}

.topbar {
    background: var(--surface);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.content-wrapper {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

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

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

.table th, .table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    background-color: var(--background);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background-color: var(--background);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-align: center;
}

.badge-primary { background-color: var(--primary-light); color: var(--primary); }
.badge-success { background-color: #ECFDF5; color: #065F46; }
.badge-secondary { background-color: #F3F4F6; color: var(--text-muted); }

/* Glassmorphism Auth Container */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FCE7F3 0%, #FDF2F8 100%);
    padding: 1rem;
}

.auth-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    border: 1px solid rgba(255,255,255,0.5);
}

.auth-logo {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 800;
    font-family: Georgia, 'Times New Roman', serif;
    color: var(--primary);
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.auth-logo img {
    max-width: 250px;
    height: auto;
    margin: 0 auto;
    display: block;
}

/* Mobile Optimizations */
@media (max-width: 640px) {
    body.mobile-optimized {
        background-color: var(--surface); /* Make body white on mobile to look like app */
    }
    
    .auth-wrapper {
        padding: 0;
        background: var(--surface);
        align-items: flex-start;
    }
    
    .auth-card {
        border-radius: 0;
        box-shadow: none;
        border: none;
        padding: 1.5rem 1rem;
        max-width: 100%;
        background: var(--surface);
        backdrop-filter: none;
    }

    .form-control, .btn, select, input[type="text"], input[type="password"], input[type="email"], input[type="number"] {
        min-height: 48px; /* Touch friendly minimum height */
        font-size: 16px; /* Prevents iOS auto-zoom */
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1.05rem;
        border-radius: var(--radius-lg);
    }
    
    .container {
        padding: 0 1rem;
    }
    
    /* Better Checkbox/Radio on Mobile */
    input[type="checkbox"], input[type="radio"] {
        width: 24px;
        height: 24px;
        margin-right: 0.5rem;
    }
    
    label.flex.items-center {
        padding: 0.5rem 0;
    }
}

/* Fast Fade In Animation to feel snappy */
.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

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