/* Factorio Theme - Official Colors from factorio.com */

:root {
    /* === BACKGROUND COLORS === */
    --factorio-bg: #201810;             /* Main body background */
    --factorio-darker-bg: #181410;      /* Darker background variant */
    --factorio-panel: #313031;          /* Primary panel background */
    --factorio-panel-lighter: #414040;  /* Secondary panel background */
    --factorio-panel-dark: #242324;     /* Inset panel background */

    /* === TEXT COLORS === */
    --factorio-text: #ffffff;           /* Primary white text */
    --factorio-text-cream: #ffe6c0;     /* Headers, emphasis (cream) */
    --factorio-text-muted: #999999;     /* Muted/secondary text */
    --factorio-text-muted-light: #a6a6a6; /* Lighter muted text */
    --factorio-text-secondary: #b0b0b0; /* Secondary text */
    --factorio-text-disabled: #666666;  /* Disabled text */
    --factorio-text-dark: #000000;      /* Dark text (for light backgrounds) */

    /* === BORDER COLORS === */
    --factorio-border: #2e2623;         /* Panel borders */
    --factorio-border-light: #424242;   /* Light border (top/left highlight) */
    --factorio-border-medium: #3a3a3a;  /* Medium border */
    --factorio-border-dark: #1a1a1a;    /* Dark border (bottom/right shadow) */
    --factorio-border-button: #222222;  /* Button border */

    /* === ACCENT COLORS === */
    --factorio-orange: #ffa200;         /* Orange accent */
    --factorio-orange-hover: #e39827;   /* Orange hover state */
    --factorio-orange-light: #ffb833;   /* Light orange (gradients) */
    --factorio-orange-dark: #d98f00;    /* Dark orange (gradients) */
    --factorio-green: #5eb663;          /* Green button */
    --factorio-green-hover: #92e897;    /* Green hover */
    --factorio-red: #fe5a5a;            /* Red button */
    --factorio-red-hover: #ff9b9b;      /* Red hover */
    --factorio-link: #7dcaed;           /* Link blue */
    --factorio-link-hover: #9ad1ea;     /* Link hover */

    /* === BUTTON COLORS === */
    --factorio-button-bg: #8e8e8e;      /* Default button background */
    --factorio-button-bg-hover: #9e9e9e; /* Button hover */
    --factorio-button-shadow: #604814;  /* Button shadow */
    --factorio-button-shadow-dark: #432400; /* Button pressed shadow */
    --factorio-button-secondary-shadow: #515050; /* Secondary button shadow */
    --factorio-button-danger-shadow: #642323; /* Danger button shadow */
    --factorio-button-disabled-shadow: #2b2b2b; /* Disabled button shadow */
    --factorio-disabled: #3d3d3d;       /* Disabled state */

    /* === GRADIENT/HEADER COLORS === */
    --factorio-header-gradient: #4a4a4a; /* Header gradient start */

    /* === FORM COLORS === */
    --factorio-input-focus-bg: #f0dab4; /* Input focus background */

    /* === ALERT COLORS === */
    --factorio-alert-success-bg: #1a3a1a;
    --factorio-alert-success-border: #28a745;
    --factorio-alert-success-text: #4cff4c;
    --factorio-alert-danger-bg: #3a1a1a;
    --factorio-alert-danger-text: #ff6666;
    --factorio-alert-info-bg: #1a2a3a;
    --factorio-alert-info-border: #17a2b8;
    --factorio-alert-info-text: #4cc8ff;
    --factorio-alert-warning-bg: #3a2a1a;
    --factorio-alert-warning-text: #ffc966;
}

/* Global Styles */
body {
    background-color: var(--factorio-bg);
    color: var(--factorio-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Subtle Background Noise Texture */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    z-index: 10000;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--factorio-text-cream);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

a {
    color: var(--factorio-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--factorio-link-hover);
    text-decoration: underline;
}

/* Buttons - Factorio.com Official Style */
.btn, button:not(.navbar-toggler) {
    background: linear-gradient(to bottom,
        var(--factorio-orange-light) 0%,
        var(--factorio-orange) 50%,
        var(--factorio-orange-dark) 100%
    );
    color: var(--factorio-text);
    border: 1px solid var(--factorio-border-button);
    border-top: 1px solid rgba(255,255,255,0.2);
    border-left: 1px solid rgba(255,255,255,0.1);
    border-bottom: 3px solid var(--factorio-button-shadow);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
    padding: 0.75rem 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.1s ease;
    border-radius: 0;
    font-size: 1rem;
    text-shadow: 0 1px 1px rgba(0,0,0,0.3);
}

.btn:hover, button:not(.navbar-toggler):hover {
    background: var(--factorio-orange-hover);
    border-bottom-color: var(--factorio-button-shadow-dark);
}

.btn:active, button:not(.navbar-toggler):active {
    background: var(--factorio-orange-hover);
    border-bottom-width: 1px;
    border-bottom-color: var(--factorio-button-shadow-dark);
    box-shadow: inset 0 2px 3px rgba(0,0,0,0.3);
    transform: translateY(2px);
}

.btn-secondary {
    background: var(--factorio-button-bg);
    color: var(--factorio-text);
    border-bottom: 3px solid var(--factorio-button-secondary-shadow);
}

.btn-secondary:hover {
    background: var(--factorio-button-bg-hover);
}

.btn-danger {
    background: var(--factorio-red);
    color: var(--factorio-text);
    border-bottom: 3px solid var(--factorio-button-danger-shadow);
}

.btn-danger:hover {
    background: var(--factorio-red-hover);
}

.btn:disabled, button:disabled {
    background: var(--factorio-disabled);
    color: var(--factorio-text-disabled);
    cursor: not-allowed;
    border-bottom: 3px solid var(--factorio-button-disabled-shadow);
}

/* Factorio Panel System */
.panel {
    background-color: var(--factorio-panel);
    border-top: 1px solid var(--factorio-border-light);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 1px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    box-shadow: 0 2px 3px rgba(0,0,0,0.3);
    padding: 0;
    margin-bottom: 1.5rem;
}

.panel-inset {
    background: var(--factorio-panel-dark);
    border: 1px solid var(--factorio-border);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
    padding: 1rem;
}

.panel-inset-lighter {
    background: var(--factorio-panel-lighter);
    border: 1px solid var(--factorio-border);
    box-shadow: inset 0 1px 1px rgba(0,0,0,0.3);
    padding: 1rem;
}

.panel-header {
    background: linear-gradient(to bottom,
        var(--factorio-header-gradient) 0%,
        var(--factorio-panel-lighter) 15%,
        var(--factorio-panel) 100%
    );
    border-bottom: 1px solid var(--factorio-border-dark);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 0.75rem 1rem;
    font-weight: bold;
    text-transform: uppercase;
    color: var(--factorio-text-cream);
}

.panel-body {
    padding: 1.5rem;
    text-align: center !important;
}

/* Keep structured elements in panels left-aligned */
.panel-body table,
.panel-body form,
.panel-body ul,
.panel-body ol {
    text-align: left;
}

/* Legacy card support - maps to panel system */
.card {
    background-color: var(--factorio-panel);
    border-top: 1px solid var(--factorio-border-light);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 1px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    box-shadow: 0 2px 3px rgba(0,0,0,0.3);
    border-radius: 0;
    padding: 0;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card:hover {
    background-color: var(--factorio-panel);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
    transform: translateY(-1px);
}

.card-header {
    background: linear-gradient(to bottom,
        var(--factorio-header-gradient) 0%,
        var(--factorio-panel-lighter) 15%,
        var(--factorio-panel) 100%
    );
    border-bottom: 1px solid var(--factorio-border-dark);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 0.5rem 1rem;
    font-weight: bold;
    text-transform: uppercase;
    color: var(--factorio-text-cream);
}

.card-header h1,
.card-header h2,
.card-header h3,
.card-header h4 {
    margin: 0;
}

.card-body {
    background: var(--factorio-panel);
    padding: 1.5rem;
    color: var(--factorio-text);
    text-align: center !important;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.card-body > p {
    width: 100%;
}

/* Quick actions: horizontal button row */
.quick-actions {
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
}

/* Keep structured elements in cards left-aligned */
.card-body table,
.card-body form,
.card-body ul,
.card-body ol {
    text-align: left;
}

/* Forms - Inset Style */
.form-control, input, textarea, select {
    background: var(--factorio-panel-dark);
    color: var(--factorio-text);
    border: 1px solid var(--factorio-border);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(0,0,0,0.2);
    border-radius: 0;
    padding: 0.75rem;
    width: 100%;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.form-control:focus, input:focus, textarea:focus, select:focus {
    background: var(--factorio-input-focus-bg);
    border-color: var(--factorio-border);
    outline: none;
    color: var(--factorio-text-dark);
}

.form-label {
    color: var(--factorio-text-cream);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

/* Tables - Panel Style */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1.5rem;
    border: 1px solid var(--factorio-border);
    background: var(--factorio-panel);
}

th {
    background: linear-gradient(to bottom,
        var(--factorio-header-gradient) 0%,
        var(--factorio-panel-lighter) 100%
    );
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    color: var(--factorio-text-cream);
    padding: 0.75rem;
    text-align: left;
    font-weight: bold;
    text-transform: uppercase;
    border-bottom: 1px solid var(--factorio-border);
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--factorio-border);
    background: var(--factorio-panel);
}

tr:hover td {
    background: var(--factorio-panel-lighter);
}

/* Navigation - Panel Style */
.navbar {
    background: linear-gradient(to bottom,
        var(--factorio-border-medium) 0%,
        var(--factorio-panel) 100%
    );
    border-bottom: 2px solid var(--factorio-border-dark);
    box-shadow: 0 2px 4px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 1rem 0;
}

.nav-link {
    color: var(--factorio-text);
    padding: 0.5rem 1rem;
    transition: all 0.1s ease;
    text-transform: uppercase;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--factorio-link-hover);
    background: var(--factorio-panel-lighter);
}

.nav-link.active {
    color: var(--factorio-orange);
    background: var(--factorio-panel-lighter);
    border-bottom: 2px solid var(--factorio-orange);
}

/* Alerts */
.alert {
    border-radius: 0;
    border: 2px solid;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: var(--factorio-alert-success-bg);
    border-color: var(--factorio-alert-success-border);
    color: var(--factorio-alert-success-text);
}

.alert-danger {
    background-color: var(--factorio-alert-danger-bg);
    border-color: var(--factorio-red);
    color: var(--factorio-alert-danger-text);
}

.alert-info {
    background-color: var(--factorio-alert-info-bg);
    border-color: var(--factorio-alert-info-border);
    color: var(--factorio-alert-info-text);
}

.alert-warning {
    background-color: var(--factorio-alert-warning-bg);
    border-color: var(--factorio-orange);
    color: var(--factorio-alert-warning-text);
}

/* Utility Classes */
.text-orange {
    color: var(--factorio-orange);
}

.text-red {
    color: var(--factorio-red);
}

.bg-dark-factorio {
    background-color: var(--factorio-darker-bg);
}

.border-orange {
    border-color: var(--factorio-orange);
}

/* Loading Spinner */
.spinner {
    border: 4px solid var(--factorio-gray);
    border-top: 4px solid var(--factorio-orange);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Save File Card - Panel Style */
.save-file-card {
    background: var(--factorio-panel);
    border-top: 1px solid var(--factorio-border-light);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 1px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    box-shadow: 0 2px 3px rgba(0,0,0,0.3);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.2s ease;
}

.save-file-card:hover {
    background: var(--factorio-panel-lighter);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
    transform: translateY(-1px);
}

.save-file-card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.save-file-card .metadata {
    color: var(--factorio-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.save-file-card .description {
    color: var(--factorio-text);
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* Hero Section - Panel Style */
.hero {
    background: linear-gradient(to bottom,
        var(--factorio-panel-lighter) 0%,
        var(--factorio-panel) 100%
    );
    border-top: 1px solid var(--factorio-header-gradient);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 2px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    box-shadow: 0 4px 8px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05);
    padding: 2rem 2rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin: 0 0 0.5rem 0;
    color: var(--factorio-text-cream);
    text-shadow: 0 2px 3px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.2rem;
    margin: 0 0 1rem 0;
    color: var(--factorio-text);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background-color: var(--factorio-panel);
    border-top: 2px solid var(--factorio-border);
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
}

footer p {
    margin: 0;
    color: var(--factorio-text-muted-light);
}

/* Bootstrap Overrides for Factorio Theme */

/* Form Floating Labels */
.form-floating > label {
    color: var(--factorio-text-cream);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--factorio-orange);
}

/* Form Check (Checkboxes and Radios) */
.form-check-input {
    background-color: var(--factorio-panel-dark);
    border: 1px solid var(--factorio-border);
}

.form-check-input:checked {
    background-color: var(--factorio-orange);
    border-color: var(--factorio-orange);
}

.form-check-input:focus {
    box-shadow: 0 0 0 0.25rem rgba(255, 162, 0, 0.25);
    border-color: var(--factorio-orange);
}

.form-check-label {
    color: var(--factorio-text);
}

/* Dropdowns */
.dropdown-menu {
    background-color: var(--factorio-panel);
    border: 1px solid var(--factorio-border);
    border-top: 1px solid var(--factorio-border-light);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 1px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    box-shadow: 0 4px 8px rgba(0,0,0,0.5);
}

.dropdown-item {
    color: var(--factorio-text);
}

.dropdown-item:hover, .dropdown-item:focus {
    background-color: var(--factorio-panel-lighter);
    color: var(--factorio-text);
}

.dropdown-divider {
    border-color: var(--factorio-border);
}

/* Modals */
.modal-content {
    background-color: var(--factorio-panel);
    border: 1px solid var(--factorio-border);
    border-top: 1px solid var(--factorio-border-light);
    border-left: 1px solid var(--factorio-border-medium);
    border-bottom: 1px solid var(--factorio-border-dark);
    border-right: 1px solid var(--factorio-border-dark);
    border-radius: 0;
}

.modal-header {
    background: linear-gradient(to bottom,
        var(--factorio-header-gradient) 0%,
        var(--factorio-panel-lighter) 15%,
        var(--factorio-panel) 100%
    );
    border-bottom: 1px solid var(--factorio-border-dark);
    color: var(--factorio-text-cream);
}

.modal-title {
    color: var(--factorio-text-cream);
    text-transform: uppercase;
}

.modal-body {
    background-color: var(--factorio-panel);
    color: var(--factorio-text);
}

.modal-footer {
    background-color: var(--factorio-panel);
    border-top: 1px solid var(--factorio-border);
}

.btn-close {
    filter: invert(1);
}

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

.text-secondary {
    color: var(--factorio-text-secondary) !important;
}

.text-danger {
    color: var(--factorio-red) !important;
}

.text-success {
    color: var(--factorio-green) !important;
}

.text-warning {
    color: var(--factorio-orange) !important;
}

.text-info {
    color: var(--factorio-link) !important;
}

/* Horizontal Rule */
hr {
    border-color: var(--factorio-border);
    opacity: 1;
}

/* List Groups */
.list-group-item {
    background-color: var(--factorio-panel);
    border-color: var(--factorio-border);
    color: var(--factorio-text);
}

.list-group-item:hover {
    background-color: var(--factorio-panel-lighter);
}

.list-group-item.active {
    background-color: var(--factorio-orange);
    border-color: var(--factorio-orange);
}

/* Pagination */
.page-link {
    background-color: var(--factorio-panel);
    border-color: var(--factorio-border);
    color: var(--factorio-link);
}

.page-link:hover {
    background-color: var(--factorio-panel-lighter);
    border-color: var(--factorio-border);
    color: var(--factorio-link-hover);
}

.page-item.active .page-link {
    background-color: var(--factorio-orange);
    border-color: var(--factorio-orange);
    color: var(--factorio-text);
}

.page-item.disabled .page-link {
    background-color: var(--factorio-panel-dark);
    border-color: var(--factorio-border);
    color: var(--factorio-disabled);
}

/* Breadcrumbs */
.breadcrumb {
    background-color: var(--factorio-panel);
    border: 1px solid var(--factorio-border);
    padding: 0.75rem 1rem;
}

.breadcrumb-item a {
    color: var(--factorio-link);
}

.breadcrumb-item.active {
    color: var(--factorio-text-cream);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--factorio-border);
}

/* Progress Bars */
.progress {
    background-color: var(--factorio-panel-dark);
    border: 1px solid var(--factorio-border);
    border-radius: 0;
}

.progress-bar {
    background-color: var(--factorio-orange);
}

/* Tooltips */
.tooltip-inner {
    background-color: var(--factorio-panel);
    color: var(--factorio-text);
    border: 1px solid var(--factorio-border);
}

.tooltip.bs-tooltip-top .tooltip-arrow::before,
.tooltip.bs-tooltip-auto[data-popper-placement^="top"] .tooltip-arrow::before {
    border-top-color: var(--factorio-panel);
}

/* Badges */
.badge {
    border-radius: 0;
    font-weight: bold;
    text-transform: uppercase;
}

.badge.bg-primary {
    background-color: var(--factorio-orange) !important;
}

.badge.bg-secondary {
    background-color: var(--factorio-button-bg) !important;
}

.badge.bg-success {
    background-color: var(--factorio-green) !important;
}

.badge.bg-danger {
    background-color: var(--factorio-red) !important;
}

.badge.bg-warning {
    background-color: var(--factorio-orange) !important;
    color: var(--factorio-text) !important;
}

.badge.bg-info {
    background-color: var(--factorio-link) !important;
}

/* Sections - Generic container theming */
section {
    color: var(--factorio-text);
}

/* === LAYOUT UTILITIES (Bootstrap Replacements) === */

/* Grid System - CSS Grid for proper gap handling */
.row {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
    width: 100%;
    align-items: stretch;
    margin-bottom: 1.5rem;
}

.row:last-child {
    margin-bottom: 0;
}

/* Column spans - stretch children to fill */
.col, [class*="col-"] {
    display: flex;
    flex-direction: column;
}

.col { grid-column: span 12; }
.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

/* Mobile first: stack columns by default */
.col-md-3, .col-md-4, .col-md-6, .col-md-8, .col-md-12,
.col-lg-3, .col-lg-4, .col-lg-6, .col-lg-8, .col-lg-9 {
    grid-column: span 12;
}

/* Responsive grid (md breakpoint) */
@media (min-width: 768px) {
    .col-md-3 { grid-column: span 3; }
    .col-md-4 { grid-column: span 4; }
    .col-md-6 { grid-column: span 6; }
    .col-md-8 { grid-column: span 8; }
    .col-md-12 { grid-column: span 12; }
}

/* Responsive grid (lg breakpoint) */
@media (min-width: 992px) {
    .col-lg-3 { grid-column: span 3; }
    .col-lg-4 { grid-column: span 4; }
    .col-lg-6 { grid-column: span 6; }
    .col-lg-8 { grid-column: span 8; }
    .col-lg-9 { grid-column: span 9; }
}

/* Spacing Utilities */
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.me-1 { margin-right: 0.25rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }

.ms-1 { margin-left: 0.25rem !important; }
.ms-2 { margin-left: 0.5rem !important; }
.ms-3 { margin-left: 1rem !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.my-2 { margin-top: 0.5rem !important; margin-bottom: 0.5rem !important; }

.p-0 { padding: 0 !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.px-4 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }

/* Flexbox Utilities */
.d-flex { display: flex !important; }
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }

.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-end { justify-content: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }

/* Width Utilities */
.w-100 { width: 100% !important; }
.w-50 { width: 50% !important; }
.w-auto { width: auto !important; }

/* Text Utilities */
.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }
.fw-bold { font-weight: bold !important; }
.fs-5 { font-size: 1.25rem !important; }
.fs-6 { font-size: 1rem !important; }

/* Small Button Variant */
.btn-sm {
    font-size: 0.75rem !important;
    padding: 0.25rem 0.5rem !important;
}

.btn-lg {
    font-size: 1.1rem !important;
    padding: 1rem 2rem !important;
}

/* Form Floating Labels */
.form-floating {
    position: relative;
}

.form-floating > input,
.form-floating > textarea,
.form-floating > select {
    height: calc(3.5rem + 2px);
    padding: 1rem 0.75rem;
}

.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 1rem 0.75rem;
    pointer-events: none;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    color: var(--factorio-text-muted);
}

.form-floating > input:focus ~ label,
.form-floating > input:not(:placeholder-shown) ~ label,
.form-floating > textarea:focus ~ label,
.form-floating > textarea:not(:placeholder-shown) ~ label {
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    color: var(--factorio-orange);
}

/* Checkbox styling */
.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin: 0;
}

.form-check-label {
    margin: 0;
}

/* Checkbox styling */
.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Tab Navigation */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--factorio-border);
    padding-bottom: 0.5rem;
}

.tabs button {
    background: var(--factorio-panel);
    border: 1px solid var(--factorio-border);
    color: var(--factorio-text);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tabs button:hover {
    background: var(--factorio-panel-lighter);
}

.tabs button.tab-active {
    background: var(--factorio-orange);
    border-color: var(--factorio-orange);
    color: var(--factorio-text);
}

/* Manage page layout */
.manage-nav {
    width: 100%;
}

.manage-nav .nav {
    display: flex;
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.manage-nav .nav-item {
    list-style: none;
}

/* Inactive nav buttons: secondary/gray Factorio button */
.manage-nav .nav-link {
    display: inline-block;
    background: var(--factorio-button-bg);
    color: var(--factorio-text);
    border: 1px solid var(--factorio-border-button);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 3px solid var(--factorio-button-secondary-shadow);
    border-radius: 0;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.1s ease;
    text-decoration: none;
}

/* Inactive hover */
.manage-nav .nav-link:hover {
    background: var(--factorio-button-bg-hover);
    color: var(--factorio-text);
    text-decoration: none;
    border-bottom-color: var(--factorio-button-secondary-shadow);
}

/* Inactive press */
.manage-nav .nav-link:active {
    background: var(--factorio-button-bg);
    border-bottom-width: 1px;
    box-shadow: inset 0 2px 3px rgba(0, 0, 0, 0.3);
    transform: translateY(2px);
}

/* Active nav button: orange Factorio primary button */
.manage-nav .nav-link.active {
    background: linear-gradient(to bottom,
        var(--factorio-orange-light) 0%,
        var(--factorio-orange) 50%,
        var(--factorio-orange-dark) 100%
    );
    color: var(--factorio-text);
    border: 1px solid var(--factorio-border-button);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 3px solid var(--factorio-button-shadow);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
    cursor: default;
}

/* Active hover: no dramatic change */
.manage-nav .nav-link.active:hover {
    background: linear-gradient(to bottom,
        var(--factorio-orange-light) 0%,
        var(--factorio-orange) 50%,
        var(--factorio-orange-dark) 100%
    );
    border-bottom-color: var(--factorio-button-shadow);
}

/* Active press: no push-down (already on this page) */
.manage-nav .nav-link.active:active {
    transform: none;
    border-bottom-width: 3px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.manage-content {
    width: 100%;
    text-align: left;
}

/* Override card-body center alignment for manage pages */
.manage-card .card-body {
    text-align: left !important;
    align-items: stretch;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .card {
        padding: 1rem;
    }

    .manage-nav .nav {
        gap: 0.35rem;
    }

    .manage-nav .nav-link {
        font-size: 0.78rem;
        padding: 0.4rem 0.75rem;
    }
}