/* Modern Theme with Dark Mode Support */
:root {
    /* Brand Colors */
    --dsr-blue: #1F3A5F;
    --dsr-blue-hover: #162a45;
    --dsr-orange: #FF7F3F;
    --dsr-orange-hover: #e56b2e;

    /* Semantic Colors - Light Mode (Default) */
    --bg-body: #F0F2F5;
    --bg-card: #FFFFFF;
    --bg-input: #FFFFFF;
    --text-main: #343a40;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --table-hover: rgba(0, 0, 0, 0.05);
    --table-stripe: rgba(0, 0, 0, 0.02);
    --shadow-color: rgba(0, 0, 0, 0.05);

    /* Component Specific */
    --nav-bg: linear-gradient(135deg, var(--dsr-blue), #2c5282);
    --nav-text: #FFFFFF;
    --link-color: #0d6efd;
}

body.dark-mode {
    /* Semantic Colors - Dark Mode */
    --bg-body: #121212;
    --bg-card: #1E1E1E;
    --bg-input: #2D2D2D;
    --text-main: #E0E0E0;
    --text-muted: #A0A0A0;
    --border-color: #444444;
    --table-hover: rgba(255, 255, 255, 0.05);
    --table-stripe: rgba(255, 255, 255, 0.02);
    --shadow-color: rgba(0, 0, 0, 0.5);

    --link-color: #6ea8fe;
}

body {
    background-color: var(--bg-body) !important;
    color: var(--text-main);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Links */
a {
    color: var(--link-color);
}

a:hover {
    color: var(--dsr-orange);
}

/* Navbar */
.bg-dark-blue {
    background: var(--nav-bg) !important;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.navbar-brand,
.navbar-nav .nav-link,
.navbar-text {
    color: var(--nav-text) !important;
}

/* Buttons */
.btn-primary {
    background-color: var(--dsr-blue);
    border-color: var(--dsr-blue);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--dsr-blue-hover);
    border-color: var(--dsr-blue-hover);
}

/* Icons/Buttons in Dark Mode */
body.dark-mode .btn-outline-dark {
    color: #f8f9fa;
    border-color: #f8f9fa;
}

body.dark-mode .btn-outline-dark:hover {
    background-color: #f8f9fa;
    color: #000;
}

body.dark-mode .text-dark {
    color: #f8f9fa !important;
}

/* Tables */
.table {
    color: var(--text-main);
    border-color: var(--border-color);
}

.table thead th {
    background-color: var(--dsr-blue);
    color: #fff;
    border-bottom: 3px solid var(--dsr-orange);
}

.table thead th a {
    color: #fff !important;
}

.table-striped>tbody>tr:nth-of-type(odd)>* {
    background-color: var(--table-stripe);
    color: var(--text-main);
}

.table-hover>tbody>tr:hover>* {
    background-color: var(--table-hover);
    color: var(--text-main);
}

/* Ensure deleted row color persists/adapts */
.deleted-row {
    background-color: rgba(255, 0, 0, 0.1) !important;
}

.deleted-row a {
    color: #ff6b6b;
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px var(--shadow-color);
    color: var(--text-main);
}

.card-header {
    background-color: var(--dsr-blue);
    color: #fff;
    border-bottom: 1px solid var(--dsr-orange);
}

.card-footer {
    background-color: var(--bg-card);
    /* Or slightly darker? */
    border-top: 1px solid var(--border-color);
}

/* Edit Page Inputs - Larger Data */
.edit-page-form .form-control,
.edit-page-form .form-select {
    font-size: 1.05rem !important;
    font-weight: 500;
    color: var(--text-main);
}

.edit-page-form .form-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

/* Filter Forms & Inputs */
.form-control,
.form-select,
.input-group-text {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-input);
    color: var(--text-main);
    border-color: var(--dsr-orange);
    box-shadow: 0 0 0 0.2rem rgba(255, 127, 63, 0.25);
}

/* Fix disabled inputs in dark mode */
.form-control:disabled {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

/* Utils */
.text-muted {
    color: var(--text-muted) !important;
}

.bg-white {
    background-color: var(--bg-card) !important;
}

.bg-light {
    background-color: var(--bg-body) !important;
}

/* Edit Page Drop Zone */
#drop-zone {
    border: 2px dashed var(--border-color);
    background: var(--bg-card);
    color: var(--text-main);
}

#drop-zone.dragover {
    background: rgba(31, 58, 95, 0.05);
    border-color: var(--dsr-blue);
}

/* Login Page */
body.login-page {
    background-color: var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-form {
    width: 100%;
    max-width: 380px;
    padding: 2rem;
    margin: auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--shadow-color);
}


/* Mobile */
@media (max-width: 768px) {
    body {
        font-size: 0.85rem;
    }

    h1.h4 {
        font-size: 1.1rem;
    }

    .table-sm td,
    .table-sm th {
        padding: 0.2rem 0.3rem;
        font-size: 0.75rem;
    }

    .btn-sm {
        padding: 0.15rem 0.4rem;
        font-size: 0.75rem;
    }

    .navbar {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
}