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

/* --- VARIABLES --- */
/* Light Mode */
:root {
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-primary-color: #212529;
    --text-secondary-color: #6C757D;
    --border-color: #DEE2E6;
    --primary-brand-color: #1A4F72;
    --secondary-brand-color: #2C7DA0;
    --accent-positive-color: #198754;
    --accent-negative-color: #DC3545;
    --warning-color: #FFC107;
    --info-color: #0DCAF0;
    --card-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 80px;
    --header-height: 56px;
    --footer-height: 40px;
}

/* Dark Mode */
html.dark-mode {
    --background-color: #121212;
    --surface-color: #1E1E1E;
    --text-primary-color: #E0E0E0;
    --text-secondary-color: #A0A0A0;
    --border-color: #333;
    --primary-brand-color: #2C7DA0;
    --secondary-brand-color: #1A4F72;
}

/* --- BASE & TYPOGRAPHY --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: var(--secondary-brand-color);
    text-decoration: none;
}
a:hover {
    color: var(--primary-brand-color);
}

/* --- LAYOUT --- */
.main-wrapper {
    transition: margin-left 0.3s ease;
    margin-left: var(--sidebar-width);
    padding-top: var(--header-height);
    padding-bottom: var(--footer-height);
    min-height: 100vh;
}

body.sidebar-collapsed .main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

/* --- HEADER --- */
#header {
    height: var(--header-height);
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    transition: left 0.3s ease, width 0.3s ease;
    left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
}

body.sidebar-collapsed #header {
    left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

#header .btn-link {
    color: var(--text-secondary-color);
}
#header .btn-link:hover {
    color: var(--text-primary-color);
}
#header .btn-link:focus,
#header .btn-link:active {
    outline: none !important;
    box-shadow: none !important;
}

#header h2 {
    margin: 0;
    font-size: 1.5rem;
}

/* --- SIDEBAR --- */
#sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 1030;
    background-color: var(--surface-color);
    border-right: 1px solid var(--border-color);
    padding: 1rem;
    overflow-x: hidden;
    overflow-y: auto;
    transition: width 0.3s ease;
}

body.sidebar-collapsed #sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    padding: 0 0 0 1rem; /* Add horizontal padding */
    border-bottom: 1px solid var(--border-color); /* Separator */
    margin-bottom: 1rem; /* Space below header */
}

body.sidebar-collapsed .sidebar-header {
    justify-content: center;
    padding: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-brand-color);
    padding: 0; /* Remove previous padding */
}
.sidebar-brand i {
    font-size: 2rem;
    margin-right: 0.5rem;
    transition: margin 0.3s ease;
}
body.sidebar-collapsed .sidebar-brand i {
    margin-right: 0;
}
body.sidebar-collapsed .sidebar-brand-text {
    display: none;
}

/* Hide sidebar-brand when collapsed sidebar is hovered */
body.sidebar-collapsed #sidebar:hover .sidebar-brand {
    display: none;
}

body.sidebar-collapsed #sidebar:hover {
    cursor: ew-resize;
}

/* Sidebar Toggle Button */
#sidebar-toggle {
    color: var(--text-secondary-color);
    transition: opacity 0.3s ease;
}
#sidebar-toggle:hover {
    color: var(--text-primary-color);
}

#sidebar-toggle:focus,
#sidebar-toggle:active {
    outline: none !important;
    box-shadow: none !important;
}

body.sidebar-collapsed #sidebar-toggle {
    opacity: 0; /* Hide when collapsed */
    position: absolute; /* Allow centering */
    top: calc(var(--header-height) / 2 - 1rem); /* Center vertically */
    left: 50%;
    transform: translateX(-50%);
}

body.sidebar-collapsed #sidebar:hover #sidebar-toggle {
    opacity: 1; /* Show on hover when collapsed */
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary-color);
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    margin-bottom: 0.25rem;
}
.sidebar-nav .nav-link:hover {
    color: var(--text-primary-color);
    background-color: var(--background-color);
}
.sidebar-nav .nav-link i {
    font-size: 1.25rem;
    margin-right: 1rem;
    width: 24px; /* Align icons */
    text-align: center;
    transition: margin 0.3s ease;
}
body.sidebar-collapsed .sidebar-nav .nav-link span,
body.sidebar-collapsed .sidebar-nav .nav-link .bi-chevron-down {
    display: none;
}

@media (min-width: 992px) { /* Apply only on large screens and up */
    body.sidebar-collapsed #sidebar .sidebar-nav .nav-link {
        justify-content: center !important; /* Center content horizontally */
        padding: 0.75rem 0 !important; /* Adjust padding for collapsed state */
    }

    body.sidebar-collapsed #sidebar .sidebar-nav .nav-link i {
        margin-right: 0 !important; /* Remove margin when collapsed */
    }
}

/* Mobile Offcanvas */
.offcanvas {
    background-color: var(--surface-color);
    color: var(--text-primary-color);
}
.offcanvas .nav-link {
    color: var(--text-secondary-color);
}
.offcanvas .nav-link:hover {
    color: var(--text-primary-color);
}
.offcanvas-header {
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--surface-color); /* Ensure contrasting background */
}

.offcanvas-header .offcanvas-title {
    color: var(--primary-brand-color) !important; /* Ensure primary text color */
}

.offcanvas-title {
    /* color: var(--text-primary-color) !important; */ /* This rule is now redundant */
    margin-left: auto;
    margin-right: auto;
}

html.dark-mode .offcanvas-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%) !important; /* Force white color for the close button in dark mode */
}

.offcanvas-header .btn-close {
    /* The btn-close-white class handles the color */
}


/* --- MAIN CONTENT --- */
#main {
    background-color: var(--background-color);
}

/* --- FOOTER --- */
#footer {
    height: var(--footer-height);
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: left 0.3s ease, width 0.3s ease;
    left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
}

body.sidebar-collapsed #footer {
    left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

/* --- BOOTSTRAP OVERRIDES & THEME-AWARE COMPONENTS --- */
.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}
.card-header, .card-footer {
    background-color: transparent;
    border-color: var(--border-color);
}

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

.form-control, .form-select {
    background-color: var(--surface-color);
    border-color: var(--border-color);
    color: var(--text-primary-color);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary-brand-color);
    box-shadow: 0 0 0 0.25rem rgba(44, 125, 160, 0.25);
}
html.dark-mode .form-control::placeholder { color: var(--text-secondary-color); opacity: 0.7; }
html.dark-mode .form-select { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23a0a0a0' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e"); }

.table {
    color: var(--text-primary-color);
}
.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-accent-bg: rgba(0,0,0,0.03);
}
html.dark-mode .table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-accent-bg: rgba(255,255,255,0.08); /* Darker background for better contrast */
    color: #FFFFFF; /* White text for better visibility */
}
html.dark-mode .table {
    border-color: var(--border-color);
}
html.dark-mode .table-hover tbody tr:hover {
    --bs-table-accent-bg: rgba(255,255,255,0.2); /* More distinct hover background */
}

.text-muted { color: var(--text-secondary-color) !important; }
.amount-positive { color: var(--accent-positive-color) !important; }
.amount-negative { color: var(--accent-negative-color) !important; }

html.dark-mode .card {
    background-color: var(--surface-color);
    border-color: var(--border-color);
}

html.dark-mode .list-group-item {
    background-color: var(--surface-color);
    color: var(--text-primary-color);
    border-color: var(--border-color);
}

html.dark-mode .list-group-item-action:hover,
html.dark-mode .list-group-item-action:focus {
    background-color: rgba(255, 255, 255, 0.05); /* Slightly lighter on hover/focus */
    color: var(--text-primary-color);
}

html.dark-mode .list-group-item.active {
    background-color: var(--primary-brand-color);
    border-color: var(--primary-brand-color);
    color: #FFFFFF; /* White text for active state */
}

html.dark-mode .progress {
    background-color: var(--border-color); /* Darker background for progress bar container */
}

/* Dark Mode for Modals */
html.dark-mode .modal-content {
    background-color: var(--surface-color);
    color: var(--text-primary-color);
    border: 1px solid var(--border-color);
}

html.dark-mode .modal-header {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

html.dark-mode .modal-title {
    color: var(--text-primary-color);
}

html.dark-mode .modal-body {
    background-color: var(--surface-color);
    color: var(--text-primary-color);
}

html.dark-mode .modal-footer {
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
}

html.dark-mode .modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%) !important; /* Force white color for the close button in dark mode */
}

@media (max-width: 991.98px) {
    .offcanvas.show .sidebar-nav .nav-link span,
    .offcanvas.show .sidebar-nav .nav-link .bi-chevron-down {
        display: inline-block !important;
    }
    .main-wrapper {
        margin-left: 0 !important;
    }
    #header {
        left: 0 !important;
        width: 100% !important;
    }
    /* Existing rules */
    .main-wrapper,
    #header,
    #footer {
        margin-left: 0;
        left: 0;
        width: 100%;
    }

    body.sidebar-collapsed #footer {
        left: 0;
        width: 100%;
    }
}