/* --- Google Font Import: Montserrat --- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap');

/* --- CSS Variables for Corporate Colors & Design Tokens --- */
:root {
    --primary-red: #D32F2F;
    --primary-red-darker: #B71C1C;
    --black: #000000;
    --dark-grey: #2a2a2a;
    --medium-grey: #6c757d;
    --light-grey: #f8f9fa;
    --accent-purple: #7B1FA2;
    --white: #FFFFFF;
    --border-color: #dee2e6;
    --error-bg: #FFEBEE;
    --error-border: #E57373;
    --success-bg: #E8F5E9;
    --success-border: #81C784;
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    --border-radius: 8px;
    /* --- NEW SIDEBAR VARIABLES --- */
    --sidebar-bg: #1a1a1a;
    --sidebar-width: 260px;
    --sidebar-width-collapsed: 80px;
}

/* --- General Body & Font Styling --- */
*, *::before, *::after { box-sizing: border-box; }
body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--light-grey);
    color: var(--dark-grey);
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- NEW: COLLAPSIBLE SIDEBAR LAYOUT --- */
.app-wrapper { display: flex; min-height: 100vh; }
.sidebar {
    width: var(--sidebar-width); background-color: var(--sidebar-bg);
    color: var(--white); padding: 25px 15px; position: fixed; height: 100%;
    z-index: 100; transition: width 0.3s ease-in-out;
}
.main-page-content {
    margin-left: var(--sidebar-width); width: calc(100% - var(--sidebar-width));
    flex-grow: 1; transition: margin-left 0.3s ease-in-out, width 0.3s ease-in-out;
}
body.sidebar-collapsed .sidebar { width: var(--sidebar-width-collapsed); }
body.sidebar-collapsed .main-page-content { margin-left: var(--sidebar-width-collapsed); width: calc(100% - var(--sidebar-width-collapsed)); }

/* --- NEW: SIDEBAR CONTENT STYLES --- */
.sidebar-header { text-align: center; margin-bottom: 40px; transition: margin-bottom 0.3s ease-in-out; }
.sidebar-logo { max-width: 60px; margin-bottom: 15px; }
.sidebar-header h2 { color: var(--white); font-size: 18px; margin: 0; white-space: nowrap; }
.sidebar-nav ul { list-style: none; padding: 0; margin: 0; }
.sidebar-nav li a {
    display: flex; align-items: center; color: #a0a0a0; text-decoration: none;
    padding: 15px; border-radius: var(--border-radius); margin-bottom: 10px;
    font-weight: 600; transition: background-color 0.2s, color 0.2s; white-space: nowrap; overflow: hidden;
}
.sidebar-nav li a:hover, .sidebar-nav li.active a { background-color: var(--primary-red); color: var(--white); }
.sidebar-nav .nav-icon { font-size: 20px; min-width: 50px; text-align: center; }
#sidebar-toggle {
    position: absolute; top: 25px; right: -15px; background-color: var(--primary-red);
    color: var(--white); border: none; border-radius: 8px; /* Square button */
    width: 30px; height: 30px; cursor: pointer; display: flex;
    justify-content: center; align-items: center; box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    z-index: 1000; transition: transform 0.3s ease-in-out;
}
body.sidebar-collapsed #sidebar-toggle { transform: rotate(180deg); }
.logout-section { position: absolute; bottom: 20px; width: calc(100% - 30px); }
.logout-link { display: flex; align-items: center; justify-content: center; background-color: #2a2a2a; color: #a0a0a0; text-decoration: none; border-radius: var(--border-radius); font-weight: 600; padding: 15px; white-space: nowrap; overflow: hidden; }
.logout-link:hover { background-color: var(--primary-red); }
body.sidebar-collapsed .sidebar-header h2, body.sidebar-collapsed .sidebar-nav .nav-text { display: none; }
body.sidebar-collapsed .sidebar-header { margin-bottom: 37px; }
body.sidebar-collapsed .sidebar-nav li a, body.sidebar-collapsed .logout-link { justify-content: center; }
/* --- NEW: STYLES FOR SIDEBAR SUBMENU --- */
.sidebar-nav .has-submenu > a {
    position: relative;
}

.sidebar-nav .has-submenu > a::after {
    content: '\f078'; /* FontAwesome chevron-down icon */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.2s ease;
}

.sidebar-nav .has-submenu.active > a::after {
    transform: translateY(-50%) rotate(180deg); /* Flip icon when open */
}

.sidebar-nav .submenu {
    list-style: none;
    padding-left: 30px; /* Indent submenu items */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.sidebar-nav .has-submenu.active .submenu {
    max-height: 200px; /* Animate open */
}

.sidebar-nav .submenu li a {
    padding: 10px 20px;
    font-size: 14px;
    background-color: rgba(0,0,0,0.2);
}
/* --- YOUR ORIGINAL STYLES (PRESERVED) --- */
.container { padding: 30px; max-width: 1400px; margin: 0 auto; }
.header {
    background-color: var(--white); padding: 15px 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05); display: flex;
    justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color);
}
.header h1 { margin: 0; font-size: 24px; color: var(--black); }
.header .logout-link { color: var(--primary-red); text-decoration: none; font-weight: 600; }
.main-content { background-color: var(--white); padding: 30px; border-radius: var(--border-radius); box-shadow: var(--box-shadow); }
.btn {
    display: inline-block; padding: 12px 25px; background-color: var(--primary-red);
    border: none; color: var(--white); font-size: 16px; font-weight: 600;
    border-radius: var(--border-radius); cursor: pointer; text-decoration: none; text-align: center;
    transition: all 0.2s ease-in-out;
}
.btn:hover { background-color: var(--primary-red-darker); transform: translateY(-2px); box-shadow: 0 4px 10px rgba(211, 47, 47, 0.3); }
.form-group { margin-bottom: 25px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--medium-grey); font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 14px; border: 1px solid var(--border-color);
    border-radius: var(--border-radius); font-family: 'Montserrat', sans-serif; font-size: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent-purple);
    box-shadow: 0 0 0 4px rgba(123, 31, 162, 0.1);
}
.message { padding: 15px; margin-bottom: 20px; border-radius: var(--border-radius); border: 1px solid transparent; text-align: center; font-weight: 600; }
.message.error { background-color: var(--error-bg); border-color: var(--error-border); color: var(--primary-red-darker); }
.message.success { background-color: var(--success-bg); border-color: var(--success-border); color: #388E3C; }
.split-screen-container { display: flex; height: 100vh; }
.welcome-panel {
    flex-basis: 50%;
    background: linear-gradient(45deg, var(--black) 0%, #2c2c2c 100%);
    color: var(--white);
    display: flex; flex-direction: column; justify-content: center;
    align-items: center; padding: 40px; text-align: center;
}
.welcome-content .welcome-logo {
    max-width: 120px;
    margin-bottom: 25px;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.1));
}
.welcome-content h1 {
    color: var(--white); font-size: 36px; margin: 0 0 10px 0;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}
.welcome-content p { font-size: 18px; color: #a0a0a0; max-width: 350px; }
.form-panel { flex-basis: 50%; display: flex; justify-content: center; align-items: center; }
.login-container { background-color: var(--white); padding: 50px; border-radius: var(--border-radius); width: 90%; max-width: 420px; box-shadow: var(--box-shadow); }
.login-container h2 { text-align: center; margin-top: 0; margin-bottom: 30px; color: var(--black); font-weight: 700; }
.login-container .btn { width: 100%; text-transform: uppercase; letter-spacing: 1px; }
.password-wrapper { position: relative; }
.password-wrapper i {
    position: absolute; top: 50%; right: 15px;
    transform: translateY(-50%); color: var(--medium-grey); cursor: pointer;
}
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-bottom: 30px; }
.card {
    background-color: var(--white); padding: 25px; border-radius: var(--border-radius);
    box-shadow: var(--box-shadow); border-left: 5px solid var(--accent-purple);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); }
.card h3 { margin-top: 0; font-size: 16px; color: var(--medium-grey); text-transform: uppercase; }
.card .amount { font-size: 36px; font-weight: 700; color: var(--black); }
.data-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.data-table th, .data-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border-color); }
.data-table th { background-color: var(--light-grey); font-weight: 700; text-transform: uppercase; font-size: 12px; letter-spacing: 0.5px; }
.data-table tr:hover { background-color: #fafafa; }
/* --- ADD THIS MISSING BLOCK --- */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-width-collapsed);
}
body.sidebar-collapsed .main-page-content {
    margin-left: var(--sidebar-width-collapsed);
}
body.sidebar-collapsed .sidebar-header h2,
body.sidebar-collapsed .sidebar-nav .nav-text {
    display: none;
}
body.sidebar-collapsed .sidebar-header {
    margin-bottom: 37px;
}
body.sidebar-collapsed .sidebar-nav li a,
body.sidebar-collapsed .logout-link {
    justify-content: center;
}
body.sidebar-collapsed #sidebar-toggle {
    transform: rotate(180deg);
}
/* --- MOBILE RESPONSIVE DESIGN (PRESERVED) --- */
@media (max-width: 900px) {
    .split-screen-container { flex-direction: column; height: auto; }
    .welcome-panel { flex-basis: auto; padding: 60px 20px; }
    .form-panel { flex-basis: auto; padding: 40px 0; }
    
    .sidebar { position: static; width: 100%; height: auto; z-index: 99; }
    .main-page-content { margin-left: 0; width: 100%; }
    #sidebar-toggle { display: none; }
    body.sidebar-collapsed .sidebar { width: 100%; }
    body.sidebar-collapsed .main-page-content { margin-left: 0; width: 100%; }
    body.sidebar-collapsed .sidebar-header h2, body.sidebar-collapsed .sidebar-nav .nav-text { display: inline-block; }
}
@media (max-width: 768px) {
    .header { flex-direction: column; align-items: flex-start; }
    .header h1 { margin-bottom: 10px; }
    .container { padding: 20px; }
    .data-table, .data-table thead, .data-table tbody, .data-table th, .data-table td, .data-table tr { display: block; }
    .data-table thead tr { position: absolute; top: -9999px; left: -9999px; }
    .data-table tr { border: 1px solid var(--border-color); border-radius: var(--border-radius); margin-bottom: 15px; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
    .data-table td {
        border: none; border-bottom: 1px solid #eee; position: relative;
        padding-left: 45%; min-height: 30px; display: flex; align-items: center;
    }
    .data-table td:last-child { border-bottom: none; }
    .data-table td:before {
        content: attr(data-label);
        position: absolute; top: 50%; left: 15px; transform: translateY(-50%);
        width: 40%; padding-right: 10px; white-space: nowrap; font-weight: 600;
        text-transform: uppercase; font-size: 12px; color: var(--medium-grey);
    }
}
/* --- NEW: PART PAYMENT BADGE STYLE --- */
.status-part-payment { background-color: #ffc107; color: #000; }
/* --- NEW: Minimalist Payroll Input Field Styles --- */
.data-table .payroll-input {
    border: 1px solid #ccc; /* Standard border */
    border-radius: 4px;
    padding: 8px;
    text-align: right;
    width: 100px; /* Set a fixed width for alignment */
    font-size: 1rem;
    box-shadow: none; /* Remove any default shadow */
    -webkit-appearance: none; /* Remove default styling on some browsers */
    margin: 0;
}

.data-table .payroll-input:focus {
    border-color: var(--primary-red); /* Highlight with your theme color on focus */
    box-shadow: 0 0 0 2px rgba(211, 47, 47, 0.2); /* Add a subtle glow on focus */
    outline: none;
}

/* Adjust cell padding to better align the minimalist inputs */
.data-table td {
    vertical-align: middle;
}
/* ========================================================================= */
/* == STYLES FOR THE NEW INVOICE FORM (CREATE & EDIT PAGES)               == */
/* ========================================================================= */

.invoice-form {
    /* Main container for the two-column layout */
}

.form-grid {
    display: flex;
    gap: 30px;
}

.form-column-main {
    flex: 3; /* Main column takes up 3/4 of the space */
}

.form-column-summary {
    flex: 1; /* Summary column takes up 1/4 of the space */
}

/* Style for the cards used in the form */
.invoice-form .card {
    background-color: #fff;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 0; /* Remove default margin from card */
}

.invoice-form .card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--dark-grey);
}

/* General form group styles */
.invoice-form .form-group {
    margin-bottom: 20px;
}

.invoice-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--medium-grey);
}

.invoice-form input[type="text"],
.invoice-form input[type="date"],
.invoice-form input[type="number"],
.invoice-form select,
.invoice-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #dfe3fa;
    border-radius: 6px;
    font-size: 14px;
    background-color: #fff;
    box-sizing: border-box;
}

.invoice-form input[readonly] {
    background-color: #f8f8f8;
    cursor: not-allowed;
}

/* Invoice Items Section */
#invoice-items .item-row {
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
}
#invoice-items .item-row:last-child {
    border-bottom: none;
}

.item-row .item-description {
    flex-grow: 1;
}

.item-row .item-details {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.item-details .form-group {
    margin-bottom: 0;
}

.item-details .remove-item {
    background: none;
    border: none;
    color: var(--medium-grey);
    font-size: 24px;
    cursor: pointer;
    padding: 0 10px;
    margin-top: 20px; /* Align with inputs */
}

.btn-add-item {
    background-color: #f8f8f8;
    border: 1px solid #dfe3fa;
    color: var(--dark-grey);
    width: 100%;
    padding: 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    margin-top: 10px;
}
.btn-add-item:hover {
    background-color: #f0f0f0;
}

/* Summary Card Styles */
.summary-card .summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 14px;
}
.summary-card .summary-row span {
    color: var(--medium-grey);
    font-weight: 600;
}
.summary-card .summary-row #discount {
    width: 100px; /* Smaller input for discount */
    text-align: right;
}
.summary-card .grand-total {
    font-size: 20px;
    font-weight: 700;
    padding-top: 10px;
    border-top: 1px solid #f0f0f0;
}
.summary-card .grand-total span {
    color: var(--dark-grey);
}
.summary-card .btn-primary {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    margin-top: 20px;
}

/* Make it responsive for smaller screens */
@media (max-width: 992px) {
    .form-grid {
        flex-direction: column;
    }
    .form-column-summary {
        order: -1; /* Move summary to the top on mobile */
    }
}