/* --- Global Variables --- */
:root {
    /* Your new detailed color palette */
    --background-color: #1f1737;
    --background-color-roulettes: #0f0920; /* Not directly used for now, but kept */
    --background-color-box: #292145;
    --background-color-box-bright: #323242;
    --background-color-box-dark: #292938;
    --background-color-container: var(--background-color, #1f1737); /* Redundant but kept */
    --link-color: #357aff;
    --main-color: #ff2e7e;
    --main-color-darker: #1444eb;
    --btn-color: #698df1;
    --btn-background: rgba(92, 135, 255, 0.13);
    --btn-main-shadow: #1b61e1;
    --main-color-alpha-bg: rgba(37, 94, 255, 0.3);
    --colored-background: rgb(255, 46, 126);
    --header-height: 74px; /* Not directly used by CSS grid, but kept */
    --tabs-height: 68px; /* Not directly used by flexbox, but kept */
    --tabs-offset-bottom: 25px; /* Not directly used, but kept */

    /* Mapping new variables to general purpose ones for consistency */
    --primary-color: var(--main-color);              /* Main accent pink */
    --primary-dark: #cc2565;                         /* Darker version of main-color for hover */
    --primary-light: #ff609a;                        /* Lighter version of main-color */

    --accent-green: #28a745;                         /* Standard green for success */
    --accent-green-dark: #218838;
    --accent-red: #dc3545;                           /* Standard red for danger */
    --accent-red-dark: #c82333;
    --accent-blue-btn: var(--btn-color);             /* Secondary buttons, info (using btn-color) */
    --accent-blue-btn-dark: var(--btn-main-shadow);  /* Darker blue for secondary hover/shadow */
    --accent-orange: #fd7e14;                        /* Warnings/Highlights (keeping standard orange for visibility) */

    /* New: Themed Colors for "Color System" Status */
    --color-status-blue: #007bff;     /* Genesis of Discipline */
    --color-status-white: #f0f0f0;    /* Forging Your Foundation */
    --color-status-pink: #ff69b4;     /* Embracing Feminization & Grace */
    --color-status-red: #cc0000;      /* Strength, Effort & Enforcement */
    --color-status-gray: #808080;     /* Dedicated Servitude & Order */
    --color-status-black: #1a1a1a;    /* Pinnacle of Mastery */
    --color-status-green: #008000;    /* Corrective Recalibration */
    --color-status-light-blue: #87ceeb; /* Specific for Light Blue sub-rank (no longer a main rank, but kept for potential future use or specific sub-rank highlight if desired) */


    /* Text Colors - adapted for dark theme */
    --text-color-dark: #e0e0e0;                      /* Main body text for dark theme */
    --text-color-medium: #a0a0a0;                    /* Muted text, labels */
    --text-color-light: #ffffff;                     /* Pure white text on very dark backgrounds */

    /* Background Colors - directly mapped or derived */
    --bg-app: var(--background-color);               /* Overall app background */
    --bg-header-footer: var(--background-color-box-dark); /* Darker box bg for header/footer */
    --bg-section: var(--background-color-box);       /* Main section background */
    --bg-input-card: var(--background-color-box-bright); /* Input fields/forms background */
    --bg-modal: rgba(0, 0, 0, 0.85);                 /* Darker modal overlay */

    /* Borders & Shadows - adapted for dark theme */
    --border-color: #505050;                         /* Darker borders */
    --shadow-sm: rgba(0, 0, 0, 0.3);
    --shadow-md: rgba(0, 0, 0, 0.4);
    --shadow-lg: rgba(0, 0, 0, 0.5);

    /* Spacing & Border Radii (kept consistent) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
}

/* --- Base Styles & Reset (UPDATED FOR FULLSCREEN) --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color-dark);
    background-color: var(--bg-app);
    display: flex;
    justify-content: center;
    align-items: stretch; /* Stretches children vertically */
    min-height: 100vh;    /* Full viewport height */
    width: 100vw;     /* Full viewport width */
    padding: 0;       /* No padding on body */
    margin: 0;        /* No default margin */
    overflow-y: auto; /* Enable vertical scrolling for body */
    overflow-x: hidden; /* Prevent horizontal scrolling */
}

/* --- App Container (UPDATED FOR FULLSCREEN) --- */
#app-container {
    background-color: var(--bg-section);
    border-radius: 0; /* No rounded corners for fullscreen */
    box-shadow: none; /* No shadow for fullscreen */
    width: 100%;
    min-height: 100vh; /* Takes full viewport height */
    max-width: 100vw;  /* Ensures it doesn't exceed viewport width */
    display: flex;
    flex-direction: column;
    /* Removed explicit overflow here, letting body handle it */
    border: 2px solid transparent;
    transition: border-color 0.5s ease;
}

/* --- Color System Status Styling --- */
/* Dynamic border for the whole app based on current color */
#app-container.status-blue { border-color: var(--color-status-blue); }
#app-container.status-white { border-color: var(--color-status-white); }
#app-container.status-pink { border-color: var(--color-status-pink); }
#app-container.status-red { border-color: var(--color-status-red); }
#app-container.status-gray { border-color: var(--color-status-gray); }
#app-container.status-black { border-color: var(--color-status-black); }
#app-container.status-green { border-color: var(--color-status-green); }


/* --- Header --- */
header {
    background-color: var(--bg-header-footer);
    color: var(--text-color-light);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

header h1 {
    font-size: 2.2em;
    margin: 0;
    color: var(--text-color-light);
    flex-grow: 1;
    white-space: nowrap;
}

#main-nav {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-btn {
    background-color: transparent;
    color: var(--text-color-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--btn-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.95em;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
    margin-top: 0;
}

.nav-btn:hover {
    background-color: var(--btn-background);
    border-color: var(--link-color);
    transform: translateY(-1px);
}

.nav-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.nav-btn.active:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

#welcome-message {
    color: var(--accent-orange);
    font-weight: 600;
    margin-left: var(--spacing-md);
    white-space: nowrap;
}

/* --- Main Content Area --- */
main {
    flex-grow: 1;
    padding: var(--spacing-xl);
    background-color: var(--bg-app);
    overflow-y: auto; /* This makes the main content area scrollable if its content overflows */
}

.app-section {
    background-color: var(--bg-section);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.app-section:last-child {
    margin-bottom: 0;
}

h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    font-size: 1.8em;
}

h3 {
    color: var(--text-color-light);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: 1.4em;
}

/* --- Forms & Inputs --- */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-color-dark);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1em;
    color: var(--text-color-dark);
    background-color: var(--background-color-box-bright);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--link-color);
    box-shadow: 0 0 0 3px var(--main-color-alpha-bg);
    outline: none;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.checkbox-group input[type="checkbox"] {
    margin-right: var(--spacing-sm);
    width: auto;
    accent-color: var(--link-color);
}

.small-text {
    font-size: 0.85em;
    color: var(--text-color-medium);
    margin-top: var(--spacing-xs);
}

/* --- Buttons --- */
button {
    cursor: pointer;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 1em;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin-top: var(--spacing-sm);
}

button:hover {
    transform: translateY(-1px);
}

.primary-btn {
    background-color: var(--primary-color);
    color: var(--text-color-light);
}

.primary-btn:hover {
    background-color: var(--primary-dark);
}

.secondary-btn {
    background-color: var(--accent-blue-btn);
    color: var(--text-color-light);
}

.secondary-btn:hover {
    background-color: var(--accent-blue-btn-dark);
}

.danger-btn {
    background-color: var(--accent-red);
    color: var(--text-color-light);
}

.danger-btn:hover {
    background-color: var(--accent-red-dark);
}

.success-btn {
    background-color: var(--accent-green);
    color: var(--text-color-light);
}

.success-btn:hover {
    background-color: var(--accent-green-dark);
}

.small-btn {
    padding: 6px 10px;
    font-size: 0.85em;
    margin-top: 0;
    margin-left: var(--spacing-sm);
}

.large-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1em;
    width: 100%;
}


/* --- Message Texts --- */
.message-text {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.9em;
    text-align: center;
    min-height: 28px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.message-text.visible {
    opacity: 1;
}

.message-text.success {
    background-color: rgba(40, 167, 69, 0.2);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.message-text.error {
    background-color: rgba(220, 53, 69, 0.2);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.message-text.info {
    background-color: rgba(53, 122, 255, 0.2);
    color: var(--link-color);
    border: 1px solid var(--link-color);
}


/* --- Authentication Section --- */
.auth-form-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.form-card {
    background-color: var(--background-color-box);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-sm);
}

.form-card h3 {
    margin-top: 0;
    color: var(--main-color);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

/* --- Dashboard Section --- */
.dashboard-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: var(--background-color-box);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 180px; /* Adjusted min-height for stat cards */
}

.stat-card h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: 1.2em;
    color: var(--text-color-light);
}

/* Updated styling for status value and sub-rank */
#current-color-status {
    font-size: 2.8em;
    font-weight: bold;
    padding: 5px 15px;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.5s ease, color 0.5s ease;
    /* Default status color styles will be set by JS via class */
}

#current-sub-rank {
    font-size: 1.2em; /* Smaller than main color, larger than small-text */
    font-weight: bold;
    color: var(--text-color-dark); /* Default text color, adjust if needed */
    margin-top: var(--spacing-xs); /* Space below main color */
    text-transform: uppercase;
}

/* Color-specific styles for the status text background and text color */
#current-color-status.blue { background-color: var(--color-status-blue); color: var(--text-color-light); }
#current-color-status.white { background-color: var(--color-status-white); color: var(--text-color-dark); }
#current-color-status.pink { background-color: var(--color-status-pink); color: var(--text-color-light); }
#current-color-status.red { background-color: var(--color-status-red); color: var(--text-color-light); }
#current-color-status.gray { background-color: var(--color-status-gray); color: var(--text-color-light); }
#current-color-status.black { background-color: var(--color-status-black); color: var(--text-color-light); }
#current-color-status.green { background-color: var(--color-status-green); color: var(--text-color-light); }


.stat-card .small-text {
    font-size: 0.9em;
    color: var(--text-color-medium);
    margin-bottom: var(--spacing-md);
}

.stat-card button {
    width: auto;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Progress Bar */
.progress-bar-container {
    background-color: var(--background-color-box-bright);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    height: 30px;
    margin-top: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-color); /* Use primary color for progress */
    width: 0%; /* Controlled by JS */
    transition: width 0.5s ease-in-out;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}

.progress-bar-text {
    position: absolute;
    width: 100%;
    text-align: center;
    line-height: 30px; /* Vertically center text */
    color: var(--text-color-light);
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    z-index: 2; /* Ensure text is above fill */
}


/* Achievements List */
#achievements-list {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--background-color-box);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: 0 2px 8px var(--shadow-sm);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    min-height: 100px;
}

.achievement-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100px;
    height: 100px;
    background-color: var(--background-color-box-bright);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    box-shadow: 0 2px 5px var(--shadow-sm);
    transition: transform 0.2s ease, border-color 0.2s ease;
    position: relative;
    cursor: help; /* Indicate tooltip */
}

.achievement-badge.unlocked {
    border-color: var(--link-color);
}

.achievement-badge:hover {
    transform: scale(1.05);
    z-index: 10;
}

.achievement-badge .badge-icon {
    font-size: 3em;
    color: var(--text-color-medium);
    margin-bottom: var(--spacing-xs);
}

.achievement-badge.unlocked .badge-icon {
    color: var(--main-color);
}

.achievement-badge .badge-name {
    font-size: 0.85em;
    font-weight: 600;
    color: var(--text-color-dark);
}

.achievement-badge.unlocked .badge-name {
    color: var(--text-color-light);
}

/* Tooltip for badge description */
.achievement-badge .badge-description {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 105%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--background-color-box-dark);
    color: var(--text-color-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
    font-size: 0.8em;
    box-shadow: 0 2px 5px var(--shadow-sm);
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 11; /* Above the badge itself */
}

.achievement-badge:hover .badge-description {
    visibility: visible;
    opacity: 1;
}



/* Training Modules, Tasks, Punishments, Journal --- */
.content-toggle-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.content-toggle-buttons button {
    margin-top: 0;
}

.content-toggle-buttons button.active-content-toggle {
    background-color: var(--primary-color);
    color: var(--text-color-light);
}
.content-toggle-buttons button.active-content-toggle:hover {
    background-color: var(--primary-dark);
}

.content-view-area {
    margin-top: var(--spacing-lg);
}

.input-card {
    background-color: var(--background-color-box);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.input-card h3 {
    margin-top: 0;
    color: var(--main-color);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}


/* List Containers */
.list-container {
    background-color: var(--background-color-box);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px dashed var(--border-color);
    font-size: 0.95em;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item-content {
    flex-grow: 1;
    min-width: 50%;
}

.list-item-content h4 {
    margin: 0;
    color: var(--text-color-dark);
    font-size: 1.1em;
}

.list-item-content p {
    margin: 0;
    font-size: 0.9em;
    color: var(--text-color-medium);
}

.list-item-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-shrink: 0;
    align-items: center;
}

.list-item-actions .small-btn {
    margin-left: 0;
}

.no-items-message {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--text-color-medium);
    font-style: italic;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Specific List Item Styles */

/* Training Modules List */
.training-module-item .list-item-content p {
    margin-top: var(--spacing-xs);
}
.training-module-item .module-type-tag {
    background-color: var(--main-color-darker);
    color: var(--text-color-light);
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75em;
    font-weight: bold;
    display: inline-block;
    margin-right: var(--spacing-xs);
    text-transform: uppercase;
}
.training-module-item .module-category-tag {
    background-color: var(--background-color-box-dark);
    color: var(--text-color-light);
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75em;
    font-weight: bold;
    display: inline-block;
    text-transform: uppercase;
}

/* Daily Tasks List */
.daily-task-item {
    cursor: pointer;
}
.daily-task-item.completed {
    text-decoration: line-through;
    opacity: 0.7;
    color: var(--text-color-medium);
}
.daily-task-item.completed .task-checkbox {
    accent-color: var(--accent-green);
}
.daily-task-item .task-checkbox {
    width: auto;
    margin-right: var(--spacing-sm);
    transform: scale(1.2);
    cursor: pointer;
}
.daily-task-item .list-item-content {
    display: flex;
    align-items: center;
}
.daily-task-item .list-item-actions {
    justify-content: flex-end;
}


/* Punishment Definitions List */
.punishment-definition-item .punishment-threshold-tag {
    background-color: var(--accent-orange);
    color: var(--text-color-light);
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75em;
    font-weight: bold;
    display: inline-block;
    margin-left: var(--spacing-xs);
}
.punishment-definition-item.inactive {
    opacity: 0.6;
    font-style: italic;
    color: var(--text-color-medium);
}
.punishment-definition-item.inactive h4 {
    color: var(--text-color-medium);
}

/* Journal Entries List */
.journal-entry-item .list-item-content p {
    margin-top: var(--spacing-xs);
}
.journal-entry-item .entry-date {
    font-style: italic;
    color: var(--text-color-medium);
    font-size: 0.85em;
}

/* Event Log */
.event-positive {
    color: var(--accent-green);
    border-color: var(--accent-green);
}
.event-negative {
    color: var(--accent-red);
    border-color: var(--accent-red);
}
.event-info {
    color: var(--link-color);
    border-color: var(--link-color);
}


/* Contract Section */
.contract-content-card {
    background-color: var(--background-color-box-dark); /* Slightly darker background for contract */
    border: 2px solid var(--primary-color); /* Stronger border to signify importance */
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 20px var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-top: var(--spacing-lg);
}

#contract-text-display {
    text-align: left;
    margin-bottom: var(--spacing-lg);
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--text-color-dark);
}

#contract-text-display p {
    margin-bottom: var(--spacing-sm); /* Spacing between paragraphs in contract */
}

#contract-text-display p:last-child {
    margin-bottom: 0;
}

#contract-text-display strong {
    color: var(--primary-light); /* Highlight key terms in the contract */
}


/* Modal Styling */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-modal);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--background-color-box);
    margin: auto;
    padding: var(--spacing-xl);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    width: 90%;
    max-width: 600px;
    box-shadow: 0 4px 30px var(--shadow-lg);
    position: relative;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.modal-content h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.modal-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-color-dark);
}

.close-button {
    color: var(--text-color-medium);
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 2em;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--text-color-light);
}

#modal-audio-player {
    width: 100%;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background-color: var(--background-color-box-bright);
    border-radius: var(--border-radius-sm);
}

/* Video Player Styling */
.video-player {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.video-player iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.result-display {
    background-color: var(--background-color-box-bright);
    padding: var(--spacing-md);
    border: 1px dashed var(--main-color);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
    font-size: 1em;
    font-weight: normal;
    text-align: left;
    min-height: 60px;
    display: block;
    align-items: center;
    justify-content: center;
    color: var(--text-color-dark);
}

/* Challenges and Shop Grids */
.challenges-grid, .shop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--background-color-box-dark);
    border-radius: var(--border-radius-md);
}

.challenge-item-card, .shop-item-card {
    background-color: var(--background-color-box-bright);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 5px var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.challenge-item-card h4, .shop-item-card h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
    font-size: 1.2em;
    border-bottom: none;
    padding-bottom: 0;
}

.challenge-item-card p, .shop-item-card p {
    font-size: 0.95em;
    color: var(--text-color-dark);
    flex-grow: 1;
}

.shop-item-card .cost {
    font-weight: bold;
    color: var(--accent-orange);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.challenge-item-card button, .shop-item-card button {
    width: 100%;
    margin-top: var(--spacing-md);
}

.shop-item-card button:disabled {
    background-color: var(--text-color-medium);
    cursor: not-allowed;
    transform: none;
}


/* Footer */
footer {
    background-color: var(--bg-header-footer);
    color: var(--text-color-light);
    text-align: center;
    padding: var(--spacing-sm);
    font-size: 0.85em;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.active-section {
    display: block;
}

/* Responsive Design (UPDATED FOR FULLSCREEN) */
@media (max-width: 992px) {
    body {
        padding: 0; /* Remove padding */
    }

    #app-container {
        border-radius: 0;
        box-shadow: none;
        min-height: 100vh;
    }

    header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }

    header h1 {
        text-align: center;
        margin-bottom: var(--spacing-sm);
        white-space: normal;
    }

    #main-nav {
        justify-content: center;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .nav-btn {
        flex-basis: 48%;
        text-align: center;
    }

    #welcome-message {
        margin-left: 0;
        margin-right: 0;
        margin-top: var(--spacing-sm);
        white-space: normal;
    }

    main {
        padding: var(--spacing-lg);
    }

    .app-section {
        padding: var(--spacing-lg);
    }

    .auth-form-container {
        grid-template-columns: 1fr;
    }

    .dashboard-stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card .stat-value {
        font-size: 2em;
    }

    .list-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .list-item-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: var(--spacing-sm);
    }

    .list-item-actions .small-btn {
        width: auto;
        margin-left: var(--spacing-xs);
    }

    .content-toggle-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
    .content-toggle-buttons button {
        flex-basis: 100%;
        margin-top: var(--spacing-sm);
    }

    .large-btn {
        width: 100%; /* Make it full width on smaller screens */
    }

    .challenges-grid, .shop-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    body {
        padding: 0; /* Remove padding */
    }

    header {
        padding: var(--spacing-sm);
    }

    header h1 {
        font-size: 1.8em;
    }

    main {
        padding: var(--spacing-md);
    }

    .app-section {
        padding: var(--spacing-md);
    }

    .nav-btn {
        flex-basis: 100%;
    }

    .auth-form-container, .dashboard-stats-grid {
        gap: var(--spacing-md);
    }

    .form-card, .stat-card, .input-card {
        padding: var(--spacing-md);
    }

    .stat-card .stat-value {
        font-size: 1.5em;
    }
}