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

:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #6B7280;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --bg-body: #F3F4F6;
    --bg-card: #FFFFFF;
    --text-primary: #111827;
    --text-secondary: #4B5563;
    --border-color: #E5E7EB;
    --sidebar-width: 260px;
    --header-height: 70px;
    --radius: 8px;
    --transition: all 0.3s ease;
}

html[data-theme='dark'] {
    --bg-body: #0F172A;
    --bg-card: #1E293B;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --border-color: #334155;
    --primary: #6366F1;
    --primary-hover: #818CF8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
}

/* Base Styles */
h1, h2, h3, h4, h5, h6 { font-weight: 600; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Wrapper Layout */
.app-wrapper {
    display: flex;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.sidebar-menu {
    padding: 1rem 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-menu li {
    padding: 0.25rem 1rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-radius: var(--radius);
    transition: var(--transition);
    font-weight: 500;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
}

.sidebar-menu a i { font-size: 1.25rem; }

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Topbar */
.topbar {
    height: var(--header-height);
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 900;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: none; /* Mobile only */
}

/* Page Content */
.page-content {
    padding: 2rem;
    flex: 1;
}

.page-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* Cards (GraceFlow System) */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05); /* Minimal shadow */
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* UI Elements */
.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-primary { background: rgba(79, 70, 229, 0.1); color: var(--primary); }
.badge-warning { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.badge-success { background: rgba(16, 185, 129, 0.1); color: var(--success); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    font-size: 0.875rem;
}

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

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

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}
.btn-outline:hover {
    background-color: var(--bg-body);
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

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

.form-control, .form-select {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--text-primary);
    background-color: #fff;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

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

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-body);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: translateY(-20px);
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Utilities */
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.mt-3 { margin-top: 1rem; }
.mb-3 { margin-bottom: 1rem; }
.w-100 { width: 100%; }
.d-none { display: none !important; }

/* Responsive Grid/Flex helpers */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); gap: 1rem; }

/* Mobile Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Authentication Page Special */
.auth-wrapper {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-body);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    padding: 2.5rem 2rem;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Responsividade */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .grid-cols-2, .grid-cols-3 {
        grid-template-columns: 1fr;
    }
}