/* --- THEME & GLOBAL SETUP --- */
:root {
    --bg: #F5F5F5;
    --text: #0A0A0A;
    --accent: #AEFF00; /* Electric Lime */
    --border: #0A0A0A;
    --white: #FFFFFF;
    --danger: #ff5252;
    --restore: #2980b9; /* NEW: Restore action color */

    /* Folder Colors */
    --folder-color-default: #E0E0E0;
    --folder-color-red: #ff7675;
    --folder-color-blue: #74b9ff;
    --folder-color-green: #55efc4;
    --folder-color-yellow: #ffeaa7;
    --folder-color-purple: #a29bfe;
    
    /* Note Colors (Subtler versions) */
    --note-color-default: var(--white);
    --note-color-red: #ffe2e2;
    --note-color-blue: #e2f1ff;
    --note-color-green: #e0fff6;
    --note-color-yellow: #fff9e3;
    --note-color-purple: #e7e5ff;

    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    overflow-x: hidden;
}

/* --- SPLASH SCREEN & LOADER --- */
#splash-screen {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: var(--text);
    color: var(--accent);
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    z-index: 200;
    transition: opacity 0.5s ease-out;
}
.splash-logo { font-family: var(--font-mono); font-size: 3rem; font-weight: 700; }
.splash-loader { width: 150px; height: 4px; background: rgba(174, 255, 0, 0.2); margin-top: 1.5rem; position: relative; overflow: hidden; }
.splash-loader::after { content: ''; position: absolute; left: -100%; width: 100%; height: 100%; background: var(--accent); animation: loading-bar 1.5s ease-in-out forwards; }
@keyframes loading-bar { 0% { left: -100%; } 100% { left: 0%; } }

/* --- LAYOUT & HEADER --- */
#app-wrapper { padding: 2rem; max-width: 1600px; margin: 0 auto; opacity: 0; animation: fade-in 0.5s ease-out forwards; }
@keyframes fade-in { to { opacity: 1; } }
.app-header { 
    display: flex; 
    flex-wrap: nowrap;
    align-items: center; 
    justify-content: space-between; 
    gap: 1.5rem; 
    padding-bottom: 2rem; 
    border-bottom: 2px solid var(--border); 
    margin-bottom: 1rem; 
}
.header-left { display: flex; align-items: center; gap: 1.5rem; flex-shrink: 0; }
.logo { font-family: var(--font-mono); font-size: 2rem; font-weight: 700; }
.clock-widget { font-family: var(--font-mono); font-size: 1.2rem; background: var(--white); border: 2px solid var(--border); padding: 0.5rem 1rem; }
.controls { 
    display: flex; 
    flex-wrap: wrap; 
    align-items: center;
    gap: 1rem; 
    justify-content: flex-end; 
}
input, select { font-family: var(--font-body); font-size: 1rem; padding: 0.75rem; border: 2px solid var(--border); background-color: var(--white); }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.search-bar { min-width: 250px; }

/* --- LOCKED APP VIEW & LOGIN PROMPT --- */
#app-content.locked { pointer-events: none; filter: blur(4px); opacity: 0.3; }
.login-prompt { display: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; font-family: var(--font-mono); z-index: 50; pointer-events: all; background: var(--white); padding: 2.5rem; border: 2px solid var(--border); box-shadow: 8px 8px 0 var(--border); width: 90%; max-width: 450px; }
.login-prompt.visible { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.login-prompt i { font-size: 3rem; color: var(--text); }
.login-prompt h2 { font-size: 1.5rem; }
.login-prompt p { font-size: 1rem; opacity: 0.8; max-width: 300px; }

/* --- HEADER PROFILE BUTTON --- */
#profile-button-container { display: inline-flex; }
.profile-btn { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 1rem 0.5rem 0.5rem !important; }
.profile-btn .user-avatar { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--border); object-fit: cover; }

/* --- VIEW HEADER, BREADCRUMBS, BUTTONS --- */
.view-header { margin-bottom: 2rem; min-height: 2.5rem; }
#view-title { font-family: var(--font-mono); font-size: 1.5rem; margin-bottom: 0.5rem; }
.breadcrumbs { font-family: var(--font-mono); font-size: 1.1rem; }
.breadcrumbs button { background: none; border: none; font-family: inherit; font-size: inherit; cursor: pointer; text-decoration: underline; padding: 0.2rem; }
.breadcrumbs button:hover { color: var(--accent); background-color: var(--text); }
.breadcrumbs span { margin: 0 0.5rem; opacity: 0.5; }
.header-btn, .btn { font-family: var(--font-mono); font-weight: 700; font-size: 1rem; padding: 0.75rem 1.5rem; border: 2px solid var(--border); background-color: var(--white); cursor: pointer; box-shadow: 4px 4px 0px var(--border); transition: all 0.1s ease-out; text-align: center; }
.header-btn:hover, .btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0px var(--border); }
.header-btn:active, .btn:active { transform: translate(4px, 4px); box-shadow: none; }
.header-btn.primary, .btn.primary { background-color: var(--accent); color: var(--text); }
.btn.secondary { background-color: var(--bg); }
.btn.danger { background-color: var(--danger); color: var(--white); }

/* --- NOTES GRID --- */
.notes-grid { 
    display: grid; 
    gap: 2rem; 
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); 
}
.empty-folder-message { grid-column: 1 / -1; font-family: var(--font-mono); }
.note-card, .folder-card { background: var(--white); border: 2px solid var(--border); padding: 1rem; display: flex; flex-direction: column; gap: 1rem; box-shadow: 6px 6px 0px var(--border); transition: transform 0.1s ease-out, box-shadow 0.1s ease-out, opacity 0.2s ease-out; cursor: pointer; position: relative; }
.note-card { background-color: var(--note-bg, var(--white)); }
.note-card:hover, .folder-card:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0px var(--border); }
.note-header, .folder-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.note-header h3, .folder-header h3 { font-family: var(--font-mono); font-size: 1.1rem; word-break: break-word; flex-grow: 1; }
.note-actions { display: flex; gap: 0.5rem; }
.note-action-btn { background: none; border: none; font-size: 1.4rem; cursor: pointer; opacity: 0.7; transition: opacity 0.2s, transform 0.2s, color 0.2s; padding: 0.25rem; }
.note-action-btn:hover { opacity: 1; transform: scale(1.1); }

/* NEW: Button hover colors */
.delete-btn:hover, .trash-btn:hover { color: var(--danger); }
.read-btn:hover { color: var(--folder-color-blue); }
.edit-btn:hover { color: var(--folder-color-purple); }
.restore-btn:hover { color: var(--restore); }

/* NEW: Trashed Item Styles */
.note-card.trashed, .folder-card.trashed {
    opacity: 0.6;
    box-shadow: 4px 4px 0px #ccc;
    cursor: default;
}
.note-card.trashed:hover, .folder-card.trashed:hover {
    transform: none;
    box-shadow: 4px 4px 0px #ccc;
}
.note-card.trashed .note-header h3, .folder-card.trashed .folder-header h3 {
    text-decoration: line-through;
}

.folder-card { min-height: 200px; justify-content: space-between; background-color: var(--folder-bg, var(--white)); }
.folder-card .folder-icon { font-size: 3rem; flex-grow: 1; padding-top: 1rem; color: var(--text); }
.note-content-preview { flex-grow: 1; line-height: 1.6; word-break: break-word; font-size: 0.9rem; }
.note-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* UPDATED: Interactive Tag Styles */
.note-tag { background: var(--bg); border: 2px solid var(--border); padding: 0.25rem 0.75rem; font-size: 0.8rem; font-weight: 500; cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.note-tag:hover { background-color: var(--text); color: var(--accent); }

.note-meta { border-top: 2px solid var(--border); padding-top: 1rem; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: 0.8rem; opacity: 0.8; flex-wrap: wrap; gap: 0.5rem; }
.meta-stats { display: flex; align-items: center; gap: 0.5rem; }
.meta-stats i { font-size: 1.2rem; }

/* --- MODALS --- */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(10, 10, 10, 0.7); display: flex; justify-content: center; align-items: center; padding: 1rem; z-index: 100; backdrop-filter: blur(4px); }
.hidden { display: none !important; }
.modal-content { background: var(--white); border: 2px solid var(--border); box-shadow: 8px 8px 0px var(--border); padding: 2rem; width: 100%; max-width: 600px; max-height: 90vh; overflow-y: auto; position: relative; }
.close-modal-btn { background: none; border: none; font-size: 2rem; cursor: pointer; font-family: var(--font-mono); position: absolute; top: 0.5rem; right: 1rem; }
#note-form, #folder-form { display: flex; flex-direction: column; gap: 1.5rem; }
.modal-footer { margin-top: 1rem; display: flex; justify-content: flex-end; gap: 1rem; }

/* --- FULLSCREEN EDITOR & READER --- */
.fullscreen-editor, .fullscreen-reader { padding: 0; background-color: var(--bg); backdrop-filter: none; z-index: 110; }
.fullscreen-editor .modal-content, .fullscreen-reader .modal-content { width: 100%; height: 100%; max-width: 100%; max-height: 100%; border: none; box-shadow: none; display: flex; flex-direction: column; padding: 0; }
.fullscreen-header { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; padding: 1rem 2rem; border-bottom: 2px solid var(--border); background: var(--white); flex-shrink: 0; }
#note-title-input { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; border: none; padding: 0; flex-grow: 1; }
#note-title-input:focus { outline: none; }
.editor-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }
#note-tags-input { min-width: 200px; }
.color-options { display: flex; gap: 0.5rem; }
.color-swatch { width: 28px; height: 28px; border: 2px solid var(--border); cursor: pointer; transition: transform 0.1s ease-out; }
.color-swatch:hover { transform: scale(1.1); }
.color-swatch.selected { box-shadow: 0 0 0 3px var(--text), 0 0 0 5px var(--accent); }
.fullscreen-editor #note-form { flex-grow: 1; gap: 0; }
#note-content-input { flex-grow: 1; width: 100%; padding: 2rem; border: none; resize: none; font-size: 1.1rem; line-height: 1.7; background-color: var(--bg); }
#note-content-input:focus { outline: none; }
.fullscreen-editor .modal-footer { padding: 1rem 2rem; border-top: 2px solid var(--border); background-color: var(--white); flex-shrink: 0; }
.fullscreen-reader .fullscreen-header { justify-content: space-between; }
.fullscreen-reader .close-modal-btn { position: static; }
#read-mode-title { font-family: var(--font-mono); font-size: 1.5rem; margin: 0; }
.markdown-body { line-height: 1.7; font-size: 1.1rem; padding: 2rem; max-width: 800px; width: 100%; margin: 0 auto; overflow-y: auto; flex-grow: 1; }
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 { font-family: var(--font-mono); margin: 2rem 0 1rem; line-height: 1.3; }
.markdown-body p { margin-bottom: 1rem; }
.markdown-body ul { margin-left: 1.5rem; margin-bottom: 1rem; }
.markdown-body a { color: var(--folder-color-blue); text-decoration: none; border-bottom: 2px solid var(--folder-color-blue); }
.markdown-body a:hover { background-color: var(--folder-color-blue); color: var(--white); }
.markdown-body code { font-family: var(--font-mono); background: var(--bg); padding: 0.2em 0.4em; border-radius: 4px; border: 2px solid var(--border); font-size: 0.9em; }
.markdown-body pre { background: var(--text); color: var(--white); padding: 1rem; margin-bottom: 1rem; overflow-x: auto; border: 2px solid var(--border); }
.markdown-body pre code { background: none; border: none; padding: 0; }
.markdown-body blockquote { border-left: 4px solid var(--border); margin: 1.5rem 0; padding-left: 1.5rem; font-style: italic; opacity: 0.8; }
.markdown-body .spoiler { background: var(--text); color: transparent; cursor: pointer; transition: color 0.2s; }
.markdown-body .spoiler.visible { color: var(--white); }

/* --- SPECIFIC MODAL CONTENT --- */
.engine-bay-content { font-family: var(--font-mono); }
.engine-bay-content h2 { font-size: 1.5rem; margin-bottom: 2rem; border-bottom: 2px solid var(--border); padding-bottom: 1rem; }
.engine-bay-content .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 2.5rem; }
.engine-bay-content .stats-grid > div { border: 2px solid var(--border); padding: 1rem; }
.engine-bay-content .stats-grid label { display: block; font-size: 0.9rem; opacity: 0.7; margin-bottom: 0.25rem;}
.engine-bay-content .stats-grid span { font-weight: 700; font-size: 1.5rem; color: var(--text); }
.engine-bay-content .word-analyzer { display: flex; flex-direction: column; gap: 0.75rem; }
.engine-bay-content .word-analyzer label { font-weight: 700; }
.engine-bay-content .word-analyzer input { background: var(--bg); }
.engine-bay-content #word-analyzer-result { min-height: 2.5rem; padding: 0.75rem; background: var(--bg); border: 2px solid var(--border); }

/* --- Profile & About Modals --- */
.profile-content h3, .about-content h3 { font-family: var(--font-mono); border-bottom: 2px solid var(--border); padding-bottom: 0.5rem; margin-bottom: 1rem; margin-top: 2rem; }
.profile-header { display: flex; align-items: center; gap: 1.5rem; margin-bottom: 1rem; }
.profile-avatar { width: 72px; height: 72px; border-radius: 50%; border: 2px solid var(--border); box-shadow: 4px 4px 0 var(--border); }
.profile-header h2 { font-family: var(--font-mono); font-size: 1.5rem; }
.profile-header p { font-size: 1rem; opacity: 0.7; }
.backup-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; }
.danger-btn { background-color: var(--danger); color: var(--white); border-color: var(--danger); }
.about-content .separator { height: 2px; background-color: var(--border); margin: 1.5rem 0; opacity: 0.3; }

/* --- BANNER, MOBILE, ETC --- */
#banner-container { width: 100%; margin-bottom: 2rem; border: 2px solid var(--border); box-shadow: 6px 6px 0px var(--border); display: none; overflow: hidden; }
#banner-container.visible { display: block; }
.banner-item { width: 100%; height: auto; display: block; object-fit: cover; }
#mobile-action-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; background-color: var(--bg); border-top: 2px solid var(--border); padding: 1rem; gap: 1rem; z-index: 99; }
.mobile-action-btn { flex-grow: 1; font-family: var(--font-mono); font-weight: 700; font-size: 1rem; padding: 1rem; border: 2px solid var(--border); background-color: var(--white); cursor: pointer; box-shadow: 4px 4px 0px var(--border); display: flex; align-items: center; justify-content: center; gap: 0.5rem; transition: all 0.1s ease-out; }
.mobile-action-btn:active { transform: translate(4px, 4px); box-shadow: none; }
.mobile-action-btn.primary { background-color: var(--accent); color: var(--text); }

/* ======== RESPONSIVE DESIGN ======== */
@media (max-width: 1024px) {
    #app-wrapper { padding: 1.5rem; }
    .app-header { flex-wrap: wrap; } 
}
@media (max-width: 768px) {
    #app-wrapper { padding: 1rem; padding-bottom: 120px; }
    .app-header { flex-direction: column; align-items: stretch; }
    .header-left { justify-content: space-between; }
    .logo { font-size: 1.5rem; }
    .clock-widget { font-size: 1rem; padding: 0.4rem 0.8rem; }
    .controls { flex-direction: column; align-items: stretch; }
    .search-bar { min-width: 0; }
    .notes-grid { gap: 1rem; grid-template-columns: 1fr; }
    .fullscreen-header, .fullscreen-editor .modal-footer, .markdown-body { padding: 1rem; }
    #note-title-input, #read-mode-title { font-size: 1.2rem; }
    #mobile-action-bar { display: flex; }
    .app-header .controls #add-folder-btn,
    .app-header .controls #add-note-btn { display: none; }
}