/* ========================================= */
/* --- THEMES & COLOR PALETTES --- */
/* ========================================= */

/* --- 1. Default Theme --- */
:root, [data-theme="default"] {
    --bg: #F5F5F5;
    --fg: #000000;
    --accent-yellow: #FFFF00;
    --accent-pink: #FF00FF;
    --accent-blue: #00FFFF;
    --shadow-color: #000000;
    --border-color: #000000;
    --base-white: #FFFFFF;
    /* NEW: Danger Color */
    --danger-color: #D32F2F;
}

/* --- 2. Pastel Theme (Free) --- */
[data-theme="pastel"] {
    --bg: #F7F5F8;
    --fg: #6D7B8D;
    --accent-yellow: #CFFDE1;
    --accent-pink: #FFD1DC;
    --accent-blue: #A2E2FF;
    --shadow-color: #6D7B8D;
    --border-color: #6D7B8D;
    --base-white: #FFFFFF;
    --danger-color: #C62828;
}

/* --- 3. Grayscale Theme (Free) --- */
[data-theme="grayscale"] {
    --bg: #f0f0f0;
    --fg: #1c1c1c;
    --accent-yellow: #e0e0e0;
    --accent-pink: #8d8d8d;
    --accent-blue: #b0b0b0;
    --shadow-color: #1c1c1c;
    --border-color: #1c1c1c;
    --base-white: #FFFFFF;
    --danger-color: #D32F2F;
}

/* --- 4. Vintage Grove Theme (Premium - using your colors) --- */
[data-theme="premium-vintage"] {
    --bg: #F4F0E7; /* A lighter version of b6a489 */
    --fg: #483b64;
    --accent-yellow: #96b689; /* Greenish */
    --accent-pink: #b189b6;   /* Purplish */
    --accent-blue: #89a7b6;   /* Bluish */
    --shadow-color: #483b64;
    --border-color: #483b64;
    --base-white: #FFFFFF;
    --danger-color: #a54f4f;
}

/* --- Global Styles & Variables --- */
:root {
    --shadow: 6px 6px 0 var(--shadow-color);
    --border: 3px solid var(--border-color);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg);
    color: var(--fg);
    height: 100vh;
    overflow: hidden;
    user-select: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Loader --- */
#loader {
    position: fixed; inset: 0; background: var(--bg); z-index: 3000;
    display: flex; justify-content: center; align-items: center; gap: 15px;
    transition: opacity 0.5s ease;
}
.loader-square { width: 25px; height: 25px; background: var(--fg); animation: buildUp 1.2s ease-in-out infinite; }
.loader-square:nth-child(2) { animation-delay: 0.2s; }
.loader-square:nth-child(3) { animation-delay: 0.4s; }
@keyframes buildUp { 0% { transform: scale(0); } 50% { transform: scale(1.2); } 100% { transform: scale(0); } }

/* ========================================= */
/* --- HOME SCREEN / DASHBOARD --- */
/* ========================================= */
#home-screen { display: flex; flex-direction: column; height: 100vh; background: var(--bg); }
.home-header {
    display: flex; align-items: center; justify-content: space-between; padding: 15px 25px;
    border-bottom: var(--border); background: var(--base-white); flex-shrink: 0;
}
.home-header h1 { font-size: 1.8rem; }
.home-controls { display: flex; align-items: center; gap: 20px; }
#board-search-input {
    padding: 8px 12px; font-family: inherit; font-size: 1rem;
    border: var(--border); min-width: 300px;
    background: var(--bg); color: var(--fg);
}

/* NEW STYLE for the 'About' button */
.home-controls #about-btn {
    padding: 0;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#user-auth-home { display: flex; align-items: center; }
#user-profile-home img { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--border-color); cursor: pointer; }
#home-board-grid {
    flex-grow: 1; overflow-y: auto; padding: 30px;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px; align-content: flex-start;
}
.board-card {
    background: var(--base-white); border: var(--border); box-shadow: var(--shadow);
    display: flex; flex-direction: column; cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    height: 220px;
}
.board-card:hover { transform: translateY(-5px); box-shadow: 10px 10px 0 var(--shadow-color); }
.board-card-name { font-size: 1.2rem; font-weight: bold; padding: 20px; border-bottom: var(--border); flex-grow: 1;}
.board-card-search-match { font-size: 0.8rem; padding: 10px 20px; background: rgba(0,0,0,0.05); color: #555; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.board-card-actions { display: flex; border-top: var(--border); }
.board-card-actions button {
    flex: 1; padding: 10px; font-size: 0.8rem; border: none; box-shadow: none; border-left: var(--border);
}
.board-card-actions button:first-child { border-left: none; }
.board-card-actions .edit-btn { background: var(--accent-blue); color: var(--fg); }
.board-card-actions .delete-btn { background: var(--accent-pink); color: var(--base-white); }
.new-board-card {
    border: 3px dashed var(--border-color); justify-content: center; align-items: center;
    background: transparent; box-shadow: none;
}
.new-board-card:hover { border-style: solid; background: rgba(0,0,0,0.03); }
.new-board-card .plus-icon { font-size: 3rem; font-weight: bold; }
#login-prompt-home { width: 100%; text-align: center; }


/* ========================================= */
/* --- CANVAS VIEW --- */
/* ========================================= */
#app-container { display: flex; flex-direction: column; height: 100%; }
#top-bar {
    background: var(--base-white); border-bottom: var(--border);
    padding: 10px 20px; display: flex; align-items: center; justify-content: space-between;
    z-index: 100; flex-shrink: 0;
}
.board-title-group {
    display: flex; align-items: center; gap: 15px; flex-grow: 1;
    justify-content: center; pointer-events: none;
}
.board-title-group > * { pointer-events: auto; }
#current-board-name { font-size: 1.2rem; text-transform: uppercase; text-align: center; }

#canvas-viewport { flex-grow: 1; position: relative; overflow: hidden; background: var(--bg); cursor: grab; touch-action: none; }
#canvas-viewport:active { cursor: grabbing; }
#canvas { position: absolute; width: 5000px; height: 5000px; transform-origin: 0 0; }
#connections-layer { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }
.connection-line { stroke: var(--fg); stroke-width: 3px; fill: none; }

/* --- Nodes --- */
.node { position: absolute; width: 220px; min-height: 120px; background-color: var(--base-white); border: var(--border); box-shadow: var(--shadow); display: flex; flex-direction: column; z-index: 1; transition: box-shadow 0.1s ease, border-color 0.2s; }
.node.selected { border-color: var(--accent-pink); }
.node:hover { box-shadow: 8px 8px 0 var(--shadow-color); }
.node.shape-oval { border-radius: 50%; padding: 20px; align-items: center; justify-content: center; text-align: center; cursor: move; }
.node.shape-oval .node-handle { display: none; }
.node.shape-oval textarea {
    text-align: center;
    flex-grow: 0;
    width: 75%;
    height: 65%;
    align-self: center;
}
.node.color-white { background: var(--base-white); }
.node.color-yellow { background: var(--accent-yellow); }
.node.color-pink { background: var(--accent-pink); }
.node.color-blue { background: var(--accent-blue); }
.node-handle { height: 25px; background: rgba(0,0,0,0.05); border-bottom: var(--border); cursor: move; }
.node textarea { flex-grow: 1; width: 100%; border: none; resize: none; background: transparent; font-family: inherit; font-size: 14px; padding: 10px; outline: none; user-select: text; color: var(--fg); }

/* ========================================= */
/* --- SHARED UI ELEMENTS --- */
/* ========================================= */
button { font-family: inherit; font-weight: bold; padding: 8px 16px; background: var(--base-white); color: var(--fg); border: var(--border); box-shadow: 4px 4px 0 var(--shadow-color); cursor: pointer; transition: transform 0.1s ease, box-shadow 0.1s ease; }
button:hover { transform: translate(1px, 1px); box-shadow: 3px 3px 0 var(--shadow-color); }
button:active { transform: translate(4px, 4px); box-shadow: none; }
#customize-btn { background-color: var(--accent-blue); }

/* NEW: Danger Button Style */
.danger-btn {
    background-color: var(--danger-color) !important;
    color: var(--base-white) !important;
}
.danger-btn:disabled {
    background: #ccc !important; color: #888 !important; box-shadow: none !important; transform: none !important; cursor: not-allowed !important;
}

/* Status Indicator in Header */
#status-indicator {
    padding: 5px 12px; border-radius: 5px; font-size: 0.9rem; color: var(--base-white);
    opacity: 0; transform: scale(0.8); transition: opacity 0.3s ease, transform 0.3s ease;
}
#status-indicator.visible { opacity: 1; transform: scale(1); }

#ui-controls { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 10px; z-index: 100; }
#add-node-btn { background-color: var(--accent-yellow); }
#connect-mode-btn.active { background-color: var(--accent-pink); color: var(--base-white); transform: translate(4px, 4px); box-shadow: none; }
.hidden { display: none !important; }

/* Context Menu */
#context-menu { position: absolute; background: var(--base-white); border: var(--border); box-shadow: var(--shadow); padding: 10px; z-index: 1000; width: 200px; }
.menu-section { margin-bottom: 10px; }
.menu-section label { display: block; font-weight: bold; margin-bottom: 5px; font-size: 0.8rem;}
.color-picker { display: flex; gap: 5px; }
.color-opt { width: 25px; height: 25px; border: 2px solid var(--border-color); cursor: pointer; }
.color-opt.val-white { background: var(--base-white); }
.color-opt.val-yellow { background: var(--accent-yellow); }
.color-opt.val-pink { background: var(--accent-pink); }
.color-opt.val-blue { background: var(--accent-blue); }
.shape-picker { display: flex; gap: 5px; }
.shape-picker button { flex: 1; font-size: 0.7rem; padding: 5px; }
#delete-node-btn { width: 100%; background: var(--accent-pink); color: var(--base-white); margin-top: 5px; }

/* Modals */
.modal-wrapper { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: flex; justify-content: center; align-items: center; z-index: 2000; }
.modal-content { background: var(--base-white); padding: 30px; width: 90%; max-width: 450px; border: var(--border); box-shadow: 10px 10px 0 var(--shadow-color); }
.modal-content hr { border: none; border-top: 3px solid var(--border-color); margin: 15px 0; }
.modal-content a { color: var(--fg); font-weight: bold; }
.modal-content button { margin-top: 10px; }
.profile-details { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }
.profile-details img { width: 80px; height: 80px; border-radius: 50%; border: var(--border); margin-bottom: 10px; }

/* ========================================= */
/* --- NEW FEATURES STYLES --- */
/* ========================================= */
#status-indicator.type-info { background: #2196F3; }
#status-indicator.type-success { background: #4CAF50; }
#status-indicator.type-error { background: var(--danger-color); }

.connection-line { stroke: var(--fg); stroke-width: 4px; fill: none; cursor: pointer; transition: stroke 0.2s; }
.connection-line:hover { stroke: var(--accent-pink); }
#connections-layer * { pointer-events: auto; }

#board-switcher { position: relative; display: flex; align-items: center; justify-content: center; cursor: pointer; }
#current-board-name { padding: 5px 10px; transition: background-color 0.2s; }
#board-switcher:hover #current-board-name { background-color: rgba(0,0,0,0.08); }
#recent-boards-dropdown {
    position: absolute; top: 100%; background: var(--base-white); border: var(--border);
    box-shadow: var(--shadow); z-index: 10; min-width: 200px;
    margin-top: 10px; text-align: left;
}
#recent-boards-dropdown div { padding: 10px 15px; border-bottom: var(--border); cursor: pointer; font-size: 1rem; }
#recent-boards-dropdown div:last-child { border-bottom: none; }
#recent-boards-dropdown div:hover { background-color: var(--accent-yellow); }

#delete-board-confirm-input, #delete-account-confirm-input {
    width: 100%; padding: 10px; margin-top: 15px; font-family: inherit;
    border: var(--border); font-size: 1rem; background: var(--bg); color: var(--fg);
}
#confirm-delete-board-btn:disabled { background: #ccc; color: #888; box-shadow: none; transform: none; cursor: not-allowed; }

#duplicate-node-btn { width: 100%; background: var(--accent-blue); margin-bottom: 5px;}

.customize-tabs { display: flex; border-bottom: var(--border); margin-bottom: -3px; }
.tab-btn {
    flex: 1; border: none; box-shadow: none; border-bottom: var(--border);
    background: transparent; font-weight: normal; font-size: 1rem; padding: 12px;
}
.tab-btn.active { font-weight: bold; border: var(--border); border-bottom-color: var(--base-white); }
.tab-btn:hover { background: rgba(0,0,0,0.05); }
.tab-btn:active { transform: none; }
#palette-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-top: 15px;
}
.palette-option { border: var(--border); padding: 15px; cursor: pointer; transition: background-color 0.2s; }
.palette-option:hover { background-color: rgba(0,0,0,0.05); }
.palette-option.active { border-width: 5px; border-color: var(--accent-pink); }
.palette-name { font-weight: bold; margin-bottom: 10px; }
.palette-swatches { display: flex; gap: 5px; }
.palette-swatches span {
    width: 25px; height: 25px; border-radius: 50%; border: 2px solid var(--border-color);
}
.palette-option[data-premium="true"] { opacity: 0.6; position: relative; }

/* ========================================= */
/* --- NEW: LAYOUT EDITOR STYLES --- */
/* ========================================= */
#layout-editor-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 2500;
}
.layout-editor-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2502;
    display: flex;
    gap: 15px;
}
.layout-editor-controls #layout-editor-save { background-color: var(--accent-yellow); }
.layout-editor-controls #layout-editor-reset { background-color: var(--accent-pink); color: var(--base-white); }
.layout-editor-info {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--base-white);
    color: var(--fg);
    padding: 10px 20px;
    border: var(--border);
    z-index: 2501;
    font-size: 1rem;
    font-weight: bold;
}

.layout-editing {
    z-index: 2501 !important;
    border: 3px dashed var(--accent-pink) !important;
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.5);
    cursor: move !important;
    position: fixed !important; 
    transform: none !important;
}

.resize-handle { display: none; }
.layout-editing .resize-handle {
    display: block;
    position: absolute;
    bottom: -3px;
    right: -3px;
    width: 20px;
    height: 20px;
    background: var(--accent-pink);
    border-top: var(--border);
    border-left: var(--border);
    cursor: nwse-resize;
    z-index: 10;
}

/* ========================================= */
/* --- MOBILE & RESPONSIVE STYLES --- */
/* ========================================= */
@media (max-width: 768px) {
    body { -webkit-tap-highlight-color: transparent; }
    .home-header { flex-direction: column; gap: 15px; padding: 15px; }
    .home-controls { width: 100%; flex-wrap: wrap; justify-content: center; gap: 10px; }
    #board-search-input { min-width: 0; flex-grow: 1; }
    #home-board-grid { padding: 15px; grid-template-columns: 1fr; gap: 15px; }
    .board-card { height: 180px; }

    #top-bar { padding: 10px 15px; }
    #top-bar button { padding: 10px; }
    .board-title-group { gap: 10px; }
    #current-board-name { font-size: 1rem; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 120px;}
    
    #ui-controls { 
        bottom: 20px; right: 0; left: 0; width: 100%;
        justify-content: center; gap: 20px; flex-direction: row; 
    }
    #ui-controls button { 
        padding: 12px; font-size: 1.4rem; width: 65px; height: 65px; 
        border-radius: 50%; box-shadow: 6px 6px 0 var(--shadow-color);
    }
    #ui-controls button:hover { transform: none; box-shadow: 6px 6px 0 var(--shadow-color); }
    #ui-controls button:active { transform: translate(4px, 4px); box-shadow: 2px 2px 0 var(--shadow-color); }

    .node-handle {
        height: 40px;
        background-image: repeating-linear-gradient(
            -45deg, rgba(0,0,0,0.05), rgba(0,0,0,0.05) 5px,
            transparent 5px, transparent 10px
        );
    }
    
    .node textarea {
        font-size: 16px; -webkit-user-select: none; -ms-user-select: none; user-select: none;
    }
    .node textarea:focus { -webkit-user-select: text; -ms-user-select: text; user-select: text; }

    #context-menu { width: 220px; }
    .color-opt { width: 35px; height: 35px; }
    
    #context-menu .shape-picker button,
    #context-menu #duplicate-node-btn,
    #context-menu #delete-node-btn {
        border-radius: 8px;
    }

    .shape-picker button { font-size: 0.9rem; padding: 8px; }
    #context-menu button { font-size: 0.9rem; padding: 10px; }

    .modal-content { width: 95vw; padding: 20px; }

    .layout-editor-controls {
        top: 10px; right: 10px; left: 10px;
        justify-content: space-around;
    }
    .layout-editor-info {
        font-size: 0.9rem;
        bottom: 10px;
        width: 90%;
        text-align: center;
    }
}
/* ========================================= */
/* --- NEW: SOCIAL & SHARING STYLES --- */
/* ========================================= */
.home-controls #notifications-btn { position: relative; }
#notification-count {
    position: absolute; top: -8px; right: -8px;
    background: var(--accent-pink); color: var(--base-white);
    border-radius: 50%; width: 20px; height: 20px;
    font-size: 0.8rem; display: flex;
    justify-content: center; align-items: center;
    border: 2px solid var(--border-color);
}
.board-view-toggle {
    display: flex; justify-content: center; gap: -3px;
    padding: 15px 0; border-bottom: var(--border);
}
.board-view-toggle .toggle-btn {
    border-right: none; box-shadow: none;
}
.board-view-toggle .toggle-btn:last-child { border-right: var(--border); }
.board-view-toggle .toggle-btn.active {
    background-color: var(--accent-blue);
    transform: translateY(2px);
}
.board-card-actions .share-btn {
    background: var(--accent-yellow); color: var(--fg);
}
.user-search-area { display: flex; gap: 10px; margin-bottom: 15px; }
#user-search-input { flex-grow: 1; border: var(--border); padding: 8px; font-family: inherit; }
.user-list-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px; border-bottom: 2px solid var(--border-color);
}
.user-list-item:last-child { border-bottom: none; }
.user-info { display: flex; align-items: center; gap: 10px; }
.user-info img { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--border-color); }
.user-list-item button { padding: 5px 10px; font-size: 0.8rem; }

.request-actions { display: flex; gap: 8px; }
.request-actions .accept-btn { background-color: var(--accent-yellow); }
.request-actions .decline-btn { background-color: var(--accent-pink); color: var(--base-white); }

.share-permissions { display: flex; align-items: center; gap: 5px; }
.share-permissions select {
    border: var(--border); padding: 5px; font-family: inherit;
    background-color: var(--bg);
}

#username-input { width: 100%; border: var(--border); padding: 10px; font-size: 1rem; margin: 10px 0; }
#username-status { font-weight: bold; font-size: 0.9rem; }
#username-status.success { color: #4CAF50; }
#username-status.error { color: #D32F2F; }

.redeem-section { display: flex; gap: 10px; margin-top: 15px; }
#redeem-code-input { flex-grow: 1; border: var(--border); padding: 8px; font-family: inherit; }
/* ========================================= */
/* --- LEGAL CONSENT STYLES --- */
/* ========================================= */
#login-prompt-home { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    padding: 40px 20px; 
}

.legal-consent-container {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 25px;
    padding: 12px 20px;
    border: var(--border);
    background: var(--base-white);
    box-shadow: 4px 4px 0 var(--shadow-color);
    transition: all 0.2s ease;
}

.legal-consent-container input[type="checkbox"] {
    width: 22px;
    height: 22px;
    cursor: pointer;
    accent-color: var(--accent-pink);
    border: var(--border);
}

.legal-consent-container label {
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
}

.legal-consent-container a {
    color: var(--fg);
    text-decoration: underline;
    text-decoration-color: var(--accent-blue);
    text-decoration-thickness: 3px;
}

.legal-consent-container a:hover {
    background-color: var(--accent-blue);
    color: var(--fg);
}

/* Error highlight animation for missed checkbox */
.legal-consent-container.highlight-error {
    border-color: var(--danger-color);
    background-color: rgba(211, 47, 47, 0.1);
    animation: brutalist-shake 0.4s ease-in-out;
}

@keyframes brutalist-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px) rotate(-1deg); }
    50% { transform: translateX(8px) rotate(1deg); }
    75% { transform: translateX(-8px) rotate(-1deg); }
}