:root {
    /* --- CSS Variables for Easy Tweaking --- */
    /* set the CSS to dark mode so that browsers that support it will default to dark mode */
    color-scheme: dark;
    
    /* Colors */
    --primary-color: #1C1D4B;    /* Dark Blue/Grey */
    --secondary-color: #292a66;  /* Slightly lighter */
    --accent-color: #000336;     /* Orange/Bronze for highlights */
    --accent-color-highlight: #00055f;    
    --success-color: #50c681;    /* Green for Valid/Progress */
    --bright-color: #00b6d6;      /* Red for Errors */
    --error-color: #de7b7b;
    --bg-gradient: linear-gradient(135deg, #000336 0%, #1C1D4B 100%);         /* Page Background */
    --card-bg: #0b0b2e;          /* Form/Header Background */
    --text-color: #dddddd;
    --text-color-accent: #a4cfe7;
    --border-color: #7c7fca;

    /* Typography */
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-size-base: 16px;

    /* Spacing & Layout */
    --spacing-unit: 1rem;
    --input-height: 48px;
    --border-radius: 6px;
    --sidebar-width: 280px;

    --max-width: 1600px;

    --gap-small: 4px;
    --gap: 8px;
    --gap-large: 12px;
}

/* --- Reset & Base --- */
* { box-sizing: border-box; }

#background-canvas{
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.05;
}

.toast-notification {
    position: fixed;
    bottom: 10px;
    left: 10px; right: 10px;
    text-align: center;
    padding: 10px;
    line-height: 30px;
    background-color: var(--bright-color);
    color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    transition: right 0.3s ease, opacity 0.3s ease;
}   

body {
    font-family: var(--font-main);
    background: var(--bg-gradient);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color-scheme: dark;
}

/* --- Header --- */
header {
    padding: 0 2rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    max-width: var(--max-width);
    width: 100%;
    margin: 0px auto;
    z-index: 10;
}

footer:before,
header:before{
    position: absolute; left: 0px; right: 0px;
    height: 70px;
    content: '';
    background-color: var(--card-bg);
    z-index: -1;
    
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-size: 1.25rem;
    color: var(--text-color-accent);
    margin: 0;
}

header .logo-link{
    display: inline-block;
    position: relative;
    height: 60px;
    margin-top: 5px;
    
    margin-right: var(--gap);
}

header .logo-link img{
    position: relative;
    height: 100%;
}

.btn-reset {
    background-color: transparent;
    color: var(--bright-color);
    border: 1px solid var(--bright-color);
    padding: var(--gap) 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-reset:hover {
    background-color: var(--bright-color);
    color: white;
}

/* --- Main Layout --- */
.app-container {
    display: flex;
    flex: 1;
    overflow: hidden; /* Contains scroll areas */
    max-width: var(--max-width);
    width: 100%;
    margin: 0px auto;
    z-index: 5;
    transition: all 0.2s ease;
}

.app-container.loading{
    pointer-events: none;
    opacity: 0.2;
}

/* --- Sidebar Navigation --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-color);
    color: var(--text-color-accent);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
    border-right: 1px solid rgba(0,0,0,0.1);
}

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

.nav-item {
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
    font-size: 0.95rem;
}

.nav-item:hover { background-color: rgba(255,255,255,0.1); }
.nav-list .nav-item.active { background-color: var(--accent-color); border-color: var(--accent-color-highlight); font-weight: 600; }

.nav-status { font-weight: bold; padding-left: var(--gap); }
.nav-status.valid { color: var(--success-color); }
.nav-item.has-error .nav-status:before{ content: "!"; display: block; color: var(--bright-color); }

/* --- Content Area --- */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    scroll-behavior: smooth;
    position: relative;
    z-index: 8;
    background: rgba(20,25,65,0.5);
}

.intro-box-container{
    position: relative;
    height: 75px;
    overflow: visible;
    z-index: 1;
    margin-bottom: 2.5rem;
}

.intro-box {
    position: absolute;
    top: 0px; left: 0px; right: 0px;
    background: #e8f4fd;
    border: 1px solid #b6d4fe;
    color: #004085;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 0px auto;
    max-width: 800px;
}

.intro-box:before{
    position: fixed;
    top: 0px; left: 0px; right: 0px; bottom: 0px;
    content: '';
    background: rgba(0,0,0,0.3);
    z-index: -1;

    transition: opacity 0.3s;
    opacity: 0;
    pointer-events: none;
}

.intro-box[open]:before{
    opacity: 1;
    pointer-events: auto;
}

.intro-box summary{
    font-size: 14pt;
    cursor: pointer;
    font-weight: 600;
    transition: opacity 0.2s;
}

.intro-box summary:hover{
    opacity: 0.8;
}

.intro-box ul{
    padding: 0px;
}

.intro-box ul > li{
    padding: var(--gap);
    margin: var(--gap) 0px;
    list-style-type: none;
}

.intro-box button{
    padding: var(--gap) var(--gap-large);
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    background-color: var(--bright-color);
    color: white;
    transition: opacity 0.2s;
}

.intro-box button:hover{
    opacity: 0.7;
}

.intro-box button:active{
    opacity: 0.5;
}

[unselectable="on"]{
    user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -o-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    -webkit-tap-highlight-color: transparent;
}

/* --- Form Sections --- */
.section-container {
    display: none; /* Hidden by default */
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 80px;
    cursor: pointer;
}

.section-container.active { 
    display: block; 
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-title {
    color: var(--text-color-accent);
    border-bottom: 2px solid var(--text-color-accent);
    padding-bottom: 10px;
    margin-bottom: 20px;
    font-size: 2.5rem;
    font-weight: 600;
}

.section-description {
    font-style: italic;
    color: #666;
    margin-bottom: 30px;
}

/* --- Input Styling (div.input_wrapper > input & label) --- */
.input_wrapper {
    margin-bottom: 2.2rem;
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color-accent);
    overflow: hidden;
}

/*input wrapper styles based upon their data type */
.input_wrapper[data-type="img_icon"] {
    position: relative;
    width: 256px;
    height: 256px;
    padding: 0px;
    border: none;
    background: transparent;
    margin: 0px auto;
    border-radius: 50%;
    overflow: hidden;
    background: rgba(255,255,255,0.05);
}

.input_wrapper[data-type="img_icon"] label{
    display: none;
}

.input_wrapper[data-type="img_icon"] img{
    display: block;
    margin: 0 auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

.input_wrapper[data-type="img"] {
    padding: var(--gap);
    border: none;
    background: transparent;
}

.input_wrapper[data-type="img"] label{
    display: none;
}


.input_wrapper[data-type="img"] img{
    display: block;
    margin: 0 auto;
    max-width: 100%;
}


.input_wrapper[data-type="info_box"]{
    padding: var(--gap-large);
    border: none;
    background: #222244;
    color: var(--text-color-accent);
    font-size: 14pt;
}

.input_wrapper[data-type="info_box"] label{
    display: none;
}

.input_wrapper label {
    display: block;
    margin-bottom: var(--gap);
    font-weight: 600;
    color: inherit;
    font-size: 0.95rem;
    position: absolute;
    top: var(--gap);
    left: var(--gap);
    height: 16px;
    line-height: 16px;
}

.input_wrapper input[type="text"],
.input_wrapper input[type="email"],
.input_wrapper input[type="tel"],
.input_wrapper input[type="number"],
.input_wrapper input[type="date"],
.input_wrapper select,
.input_wrapper textarea {
    width: 100%;
    padding: 0 12px;
    font-size: 1rem;
    padding: var(--gap);
    padding-top: 26px;
    transition: all 0.2s;
    font-family: var(--font-main);
    background-color: var(--card-bg);
    color: var(--text-color);
    border: none;
    outline: none;
}

.input_wrapper input + input[type="text"]{
    padding-top: 0px;
}

.input_wrapper textarea {
    height: auto;
    min-height: 120px;
    max-height: 500px;
    padding: 12px;
    padding-top: 32px;
    resize: vertical;
}

.input_wrapper input:focus,
.input_wrapper select:focus, 
.input_wrapper textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(211, 84, 0, 0.1);
}

/* Checkbox/Radio Groups */
.checkbox-group {
    padding: var(--gap);
    display: block;
    gap: 10px;
    line-height: 20px;
    padding-top: 32px;
}

.input_wrapper .checkbox-item {
    display: block;
    position: relative;
    align-items: flex-start;
    cursor: pointer;
    line-height: 20px;
    padding: var(--gap) 0px;
    top: initial; left: initial; height: auto;
}

.input_wrapper .checkbox-item span{
    color: white;
    white-space: pre-line;
}

.checkbox-item input { position: absolute; top: var(--gap); transform: scale(1.2); }

.checkbox-item > span{
    display: block;
    padding-left: 32px;
}

.checkbox-item > span[type="content"]{
    font-weight: normal;
    margin-top: 4px;
    font-size: 0. nine five rem ;
    color: var(--text-color-accent);
}

/* Validation UI */
.error-msg {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 5px;
    display: none; /* Hidden unless invalid */
    padding: var(--gap);
    padding-top: 0px;
}

.input_wrapper.invalid{
    border-color: var(--error-color);
    color: var(--error-color);
}

.input_wrapper.valid{
    border-color: var(--success-color);
    color: var(--success-color);
}



.input_wrapper.invalid .error-msg {
    display: block;
}

.input_wrapper .subtext{
    display: block;
    margin: 0px var(--gap) var(--gap) var(--gap);
    padding: var(--gap);
    background: rgba(255,255,255,0.05);
    border-radius: 4pt;
    white-space: pre-line;
    color: white;
}

/* --- Footer / Controls --- */
footer {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    flex-shrink: 0;
    z-index: 100;
    width: 100%;
    max-width: var(--max-width);
    margin: 0px auto;
}

.progress-track {
    flex: 1;
    background-color: #eee;
    height: 10px;
    border-radius: 5px;
    margin: 0 30px;
    position: relative;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--success-color);
    width: 0%;
    transition: width 0.5s ease;
}

.btn-nav {
    padding: 10px 24px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: opacity 0.2s;
}

.btn-nav.primary { background-color: var(--bright-color); color: white; }
.btn-nav.primary:hover { opacity: 0.7; }

.btn-nav.secondary { background-color: transparent; border: 1px solid var(--bright-color); color: var(--bright-color); }
.btn-nav.secondary:hover { background-color: #f0f0f0; }

.btn-nav:disabled { background-color: #ccc; border-color: #ccc; color: #666; cursor: not-allowed; opacity: 0.1;}

/* --- Modals --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}
.modal {
    background: var(--primary-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    text-align: left;
}
.modal h3 { margin-top: 0; color: var(--bright-color); }
.modal-actions { margin-top: 2rem; display: flex; justify-content: flex-end; gap: 10px; }


/* Mobile Responsive */
@media (max-width: 768px) {
    .app-container { flex-direction: column; }
    .sidebar { width: 100%; height: 60px; flex-direction: row; overflow-x: auto; overflow-y: hidden; }
    .nav-list { display: flex; height: 100%; }
    .nav-item { flex: 0 0 auto; width: 160px; border-bottom: none; border-right: 1px solid rgba(255,255,255,0.1); justify-content: center; }
    .nav-item span:first-child { text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }
    footer { padding: 0 1rem; }
    .progress-track { margin: 0 10px; }
    .section-title { font-size: 2rem; }
    header h1{ display: none; }
    header{padding-left: var(--gap);}
}