:root {
    --primary-blue: #002D62;  /* Deep Corporate Blue */
    --secondary-grey: #4A4A4A;
    --accent-teal: #008080;   /* Modern Teal Accent */
    --accent-gold: #C0A062;   /* Muted Gold for importance */
    --bg-light: #F4F6F8;
    --white: #FFFFFF;
    --sidebar-width: 260px;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--secondary-grey);
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-blue);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100%;
    z-index: 1000;
}

.sidebar-header {
    padding: 2rem;
    background-color: rgba(0,0,0,0.2);
    text-align: center;
}

.sidebar-header img {
    max-width: 150px;
    margin-bottom: 1rem;
    /* In a real scenario, we'd use the actual logo. 
       For now, we just style the container */
}

.nav-links {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.nav-links li a {
    display: block;
    padding: 1rem 2rem;
    color: #BDC3C7;
    text-decoration: none;
    transition: 0.3s;
    border-left: 4px solid transparent;
}

.nav-links li a:hover, .nav-links li a.active {
    background-color: rgba(255,255,255,0.1);
    color: var(--white);
    border-left-color: var(--accent-teal);
}

.user-profile {
    margin-top: auto;
    padding: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 2rem 3rem;
    width: 100%;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid #ddd;
    padding-bottom: 1rem;
}

.page-title {
    color: var(--primary-blue);
    margin: 0;
}

/* Cards & Layout */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary-blue);
}

.card.urgent {
    border-top-color: #D35400; /* Burnt Orange for urgency */
    background-color: #FFF8F5;
}

.card h3 {
    margin-top: 0;
    color: var(--primary-blue);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #001F44;
}

.btn-accent {
    background-color: var(--accent-teal);
}

.btn-accent:hover {
    background-color: #006666;
}

/* Login Page Specifics */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #001F44 100%);
}

.login-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 8px;
    width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    text-align: center;
}

.login-card input {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.error-msg {
    color: red;
    display: none;
    margin-top: 1rem;
}

/* Accommodation Page */
.split-view {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.amenity-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.amenity-list li::before {
    content: "✓";
    color: var(--accent-teal);
    margin-right: 0.5rem;
}

.bank-details {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 4px;
    border: 1px solid #e9ecef;
    margin-top: 1rem;
}

/* Financials Page */
.financial-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.financial-table th, .financial-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.financial-table th {
    background-color: var(--primary-blue);
    color: var(--white);
}

.status-pending {
    color: #D35400;
    font-weight: bold;
    background: #FFF8F5;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.status-paid {
    color: var(--accent-teal);
    font-weight: bold;
    background: #E8F8F5;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}