/* ==========================================
   THEME VARIABLES
   ========================================== */
:root {
    /* Classic Neutral Default Theme */
    --bg-color: #121212;            
    --card-bg: #1e1e1e;            
    --text-main: #e4e6eb;          
    --text-muted: #9aa0a6;         
    
    --accent-color: #3b82f6;        
    --accent-hover: #2563eb;        
    
    --success-color: #2563eb;      
    --success-bg: rgba(37, 99, 235, 0.15); 
    --error-color: #d97706;        
    --error-bg: rgba(217, 119, 6, 0.08); 
    --focus-ring: rgba(59, 130, 246, 0.15); 
    
    --border-color: #333333;        
    --btn-text: #e4e6eb; 

    /* Light Keys */
    --key-bg: #e8eaed;              
    --key-border: #bdc1c6;          
    --key-depth: #9aa0a6;          
    --key-text: #202124;            
    --key-hint: #5f6368;            
    --key-hover: #ffffff;          

    --card-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.08), 
        0 8px 16px rgba(0, 0, 0, 0.12), 
        0 16px 32px rgba(0, 0, 0, 0.16);
    --card-border: 1px solid rgba(255, 255, 255, 0.05); 

    --app-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
}

[data-theme="college-library"] {
    /* College Library (Day) */
    --bg-color: #E8E4DD;          
    --card-bg: #F6F4F0;            
    --text-main: #2A1F18;          
    --text-muted: #6B5B50;         
    
    --accent-color: #841617;        
    --accent-hover: #621011;        
    
    --success-color: #2F593E;      
    --success-bg: #E8F0EA; 
    --error-color: #A83232;        
    --error-bg: #F9EBEB; 
    --focus-ring: rgba(132, 22, 23, 0.15);  
    
    --border-color: #D1CBC3;        
    --btn-text: #FFFFFF; 

    /* Light Keys */
    --key-bg: #F6F4F0;              
    --key-border: #D1CBC3;          
    --key-depth: #ACA69F;          
    --key-text: #2A1F18;            
    --key-hint: #6B5B50;            
    --key-hover: #FFFFFF;          

    --card-shadow: 0 10px 30px rgba(42, 31, 24, 0.08); 
    --card-border: 1px solid var(--border-color); 

    --app-font: Georgia, "Times New Roman", serif; 
}

[data-theme="college-library-night"] {
    /* College Library (Night) - Rich Wood & Amber Shadows */
    --bg-color: #1F1A17;            
    --card-bg: #2D2521;            
    --text-main: #F6F4F0;          
    --text-muted: #A89C92;         
    
    --accent-color: #841617;        
    --accent-hover: #4e0002;        
    
    --success-color: #8ca57d;      
    --success-bg: rgba(140, 165, 125, 0.15); 
    
    --error-color: #F6F4F0;        
    --error-bg: rgba(132, 22, 23, 0.4); 
    
    --focus-ring: rgba(220, 165, 80, 0.25); 
    
    --border-color: #43362E;        
    --btn-text: #F6F4F0; 

    --key-bg: #382E27;              
    --key-border: #1F1A17;          
    --key-depth: #100C09;          
    --key-text: #F6F4F0;            
    --key-hint: #8C7D70;            
    --key-hover: #4A3D35;          

    --card-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.4), 
        0 12px 24px rgba(0, 0, 0, 0.5), 
        0 24px 48px rgba(0, 0, 0, 0.6);
    --card-border: 1px solid var(--border-color); 

    --app-font: Georgia, "Times New Roman", serif; 
    
    /* Legible Amber for text links */
    --link-color: #DCA550;  
}

[data-theme="champs-elysees"] {
    /* Champs-Élysées Theme (Day) */
    --bg-color: #E5E8EC;          
    --card-bg: #F6F7F9;          
    --text-main: #002654;          
    --text-muted: #7f8c8d;         
    
    --accent-color: #ed2939;        
    --accent-hover: #c81d2b;        
    
    --success-color: #27ae60;      
    --success-bg: rgba(39, 174, 96, 0.15); 
    --error-color: #ed2939;        
    --error-bg: rgba(237, 41, 57, 0.1); 
    --focus-ring: rgba(237, 41, 57, 0.25); 
    
    --border-color: #dcdde1;        
    --btn-text: #ffffff; 

    /* Crisp White Keys */
    --key-bg: #FFFFFF;              
    --key-border: #DCDDE1;          
    --key-depth: #A4B0BE;          
    --key-text: #002654;            
    --key-hint: #7F8C8D;            
    --key-hover: #F1F2F6;          

    --card-shadow: 
        0 2px 4px rgba(0, 38, 84, 0.04), 
        0 8px 16px rgba(0, 38, 84, 0.06), 
        0 16px 32px rgba(0, 38, 84, 0.08);
    --card-border: 1px solid rgba(0, 38, 84, 0.08); 
    
    --app-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
}

[data-theme="champs-elysees-dark"] {
    /* Champs-Élysées Theme (Night) */
    --bg-color: #1a1b26;            
    --card-bg: #242636;            
    --text-main: #e0e2eb;          
    --text-muted: #7e839e;         
    
    --accent-color: #F29C38;        
    --accent-hover: #d48126;        
    
    --success-color: #27ae60;      
    --success-bg: rgba(39, 174, 96, 0.15); 
    --error-color: #ed2939;        
    --error-bg: rgba(237, 41, 57, 0.15); 
    --focus-ring: rgba(242, 156, 56, 0.25); 
    
    --border-color: #3b3d5c;        
    --btn-text: #1a1b26; 

    /* Cool Light Grey Keys */
    --key-bg: #E2E4E9;              
    --key-border: #BCC0C8;          
    --key-depth: #9297A1;          
    --key-text: #1A1B26;            
    --key-hint: #6B6F8A;            
    --key-hover: #F0F2F5;          

    --card-shadow: 0 15px 35px rgba(0, 0, 0, 0.6); 
    --card-border: 1px solid rgba(255, 255, 255, 0.05); 
    
    --app-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--app-font);
    margin: 0;
    padding: 60px 20px 80px 20px;  
    box-sizing: border-box;  
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;  
    min-height: 100vh;
    position: relative;
}

/* ==========================================
   TOP NAVIGATION
   ========================================== */
.top-nav {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 768px;
    padding: 20px;
    box-sizing: border-box;
    background: transparent;
    border-bottom: none;
    z-index: 100;
}

.top-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.2s ease;
    position: relative;
    z-index: 2;
}

.daily-goal-display {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
    pointer-events: none;
}

/* ==========================================
   FLASHCARD
   ========================================== */
.flashcard {
    background-color: var(--card-bg);
    border: var(--card-border);  
    border-radius: 16px;  
    padding: 40px 60px 65px 60px;
    width: 100%;
    max-width: 768px;  
    box-sizing: border-box;
    box-shadow: var(--card-shadow);  
    text-align: center;
    position: relative;
}

.flashcard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

#progress-counter {
    font-size: 0.95rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

/* ==========================================
   CARD ACTIONS DROPDOWN
   ========================================== */
.card-actions-dropdown {
    position: relative;
    display: inline-block;
}

.card-actions-toggle {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 8px;
    background-color: var(--card-bg);
    min-width: 210px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    z-index: 1000;
    padding: 8px 0;
    text-align: left;
}

.dropdown-content.show {
    display: block;
    animation: dropFade 0.15s ease-out forwards;
}

.dropdown-content a {
    color: var(--text-main) !important;
    padding: 10px 16px;
    text-decoration: none;
    display: block;
    font-size: 0.9rem !important;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 8px 0;
}

.dropdown-header {
    padding: 4px 16px;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: bold;
}

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

/* ==========================================
   TYPOGRAPHY
   ========================================== */
.badge, 
.dropdown-header, 
.stat-box p, 
.tense-title, 
.cycle-hint {
    letter-spacing: 0.08em; 
}

.badge {
    display: none;
    background: rgba(128, 128, 128, 0.15);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
}

#prompt-word {
    font-size: clamp(1.8rem, 5vw, 3.15rem);  
    line-height: 1.2;
    font-weight: 700;
    margin: 10px 0 5px 0;  
    letter-spacing: -0.02em; 
}

#prompt-word.caught-up-message {
    font-size: 2rem;
    margin: 40px 0;
    letter-spacing: -0.01em;
}

#prompt-context {
    color: var(--text-muted);
    font-style: italic;
    font-size: 1rem;  
    margin-top: 0;
    margin-bottom: 25px;  
    min-height: 1.2em;  
}

#header-mode-toggle {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s ease;
    position: absolute;
    bottom: 20px;
    left: 25px;
    margin: 0;
}

.auto-advance-container {
    position: absolute;
    bottom: 20px;
    right: 25px;
    z-index: 10;
    font-size: 0.85rem;
    color: var(--text-muted);
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

/* ==========================================
   INPUT STYLING
   ========================================== */
input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 18px;  
    font-size: 1.35rem;  
    font-family: var(--app-font);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 30px;
    text-align: center;
    background-color: var(--bg-color);
    color: var(--text-main);
    
    outline: 2px solid transparent;
    outline-offset: -2px;
    transition: border-color 0.2s ease, background-color 0.2s ease, outline-color 0.2s ease, outline-offset 0.2s cubic-bezier(0.25, 1, 0.5, 1);
}

input[type="text"]:focus {
    border-color: var(--border-color); 
    box-shadow: none; 
    outline-color: var(--accent-color);
    outline-offset: 3px; 
}

input[type="text"].correct {
    border-color: var(--success-color);
    background-color: var(--success-bg);  
    color: var(--text-main);
}

input[type="text"].show-correction {
    border-color: var(--error-color);
    background-color: var(--error-bg);  
    color: var(--error-color);
}

/* ==========================================
   RESULTS & BANNER
   ========================================== */
#result-example-display {
    width: 100%;
    box-sizing: border-box;
    padding: 25px 35px;  
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 30px;
    background-color: var(--bg-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#example-text-container {
    font-family: var(--app-font);
    cursor: default;
    width: 100%;
}

.sentence-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: baseline;
    width: 100%;
    gap: 12px;
}

.left-part, .right-part {
    font-size: clamp(1.2rem, 2.2vw, 2.3rem);
    white-space: nowrap;
    color: var(--text-muted);
    transition: opacity 0.4s ease;
}

.left-part {
    text-align: right;
}

.right-part {
    text-align: left;
}

#example-text-container .highlight-word {
    color: var(--text-main);  
    font-weight: 700;
    font-size: clamp(1.6rem, 3vw, 2.5rem);
    text-align: center;
    margin: 0;
    transition: none;
}

#pause-cycle-btn {
    position: absolute;
    top: 10px;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    padding: 4px;
    width: auto;
    opacity: 0.3;
    transition: opacity 0.2s ease, color 0.2s ease;
    display: none;  
}

.cycle-hint {
    font-size: 0.75rem;
    margin-top: 15px;
    opacity: 0.5;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    pointer-events: none;
    display: none;
}

button {
    font-family: var(--app-font);
    background-color: var(--accent-color);
    color: var(--btn-text);
    border: none;
    padding: 16px 24px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    margin-bottom: 12px;
    transition: background-color 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;  
}

button kbd {
    position: absolute;
    right: 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 0.75em;
    font-family: 'Fira Code', 'JetBrains Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;  
    opacity: 0.85;
}

/* ==========================================
   MULTIPLE CHOICE GRID
   ========================================== */
#mc-container {
    width: 100%;
    justify-content: center;
}

.mc-grid {
    display: grid;
    grid-template-columns: 122px 122px 122px;  
    gap: 10px;  
    justify-content: center;
    margin-bottom: 30px;
    width: 100%;
}

.mc-grid.answered {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mc-grid.answered .hotkey-hint {
    display: none;
}

#mc-0 { grid-column: 2; grid-row: 1; }
#mc-1 { grid-column: 1; grid-row: 2; }
#mc-2 { grid-column: 2; grid-row: 2; }
#mc-3 { grid-column: 3; grid-row: 2; }

.mc-button {
    background-color: var(--key-bg);
    border: 2px solid var(--key-border);
    border-bottom: 6px solid var(--key-depth);
    border-radius: 12px;
    color: var(--key-text);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    aspect-ratio: 1 / 1;  
    padding: 9px;  
    transition: all 0.1s ease;
    position: relative;
    width: 100%;
    max-width: 122px;  
    margin: 0 auto;
    -webkit-tap-highlight-color: transparent;  
    outline: none;
}

.mc-button.pressed, 
.mc-button:not(.error):active {
    border-bottom-width: 2px;
    transform: translateY(4px);
}

.mc-grid.answered .mc-button {
    pointer-events: none;
}

.mc-grid.answered .mc-button:not(.correct) {
    display: none;
}

.mc-button.correct {
    background-color: var(--key-bg) !important;
    border-color: var(--key-border) !important;
    border-bottom-color: var(--key-depth) !important;
    color: var(--key-text) !important;
    border-bottom-width: 6px !important;
    animation: subtleSuccessPulse 0.45s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.mc-button.error {
    opacity: 0.25;  
    pointer-events: none;
    background-color: var(--key-bg) !important;
    border-color: var(--key-border) !important;
    border-bottom-color: var(--key-depth) !important;
}

.mc-text {
    font-size: 1.125rem;  
    font-weight: 600;
    text-align: center;
}

.mc-button .hotkey-hint {
    position: absolute;
    top: 10px;
    right: 12px;
    font-size: 0.55rem;  
    color: var(--key-hint);
    font-weight: 600;
    letter-spacing: 0.5px;
    opacity: 0.6;  
    transition: opacity 0.2s ease;
}

/* ==========================================
   CONSOLIDATED HOVER STATES
   Only apply hovers on non-touch devices
   ========================================== */
@media (hover: hover) {
    .top-nav a:hover { color: var(--text-main); }
    .card-actions-toggle:hover { color: var(--text-main); }
    .dropdown-content a:hover {
        background-color: rgba(128, 128, 128, 0.1);
        color: var(--accent-color) !important;
    }
    #header-mode-toggle:hover { color: var(--text-main); }
    .auto-advance-container:hover { opacity: 1; }
    #pause-cycle-btn:hover {
        opacity: 1;
        color: var(--text-main);
    }
    button:hover { background-color: var(--accent-hover); }
    .mc-button:hover { background-color: var(--key-hover); }
    .mc-button:hover .hotkey-hint { opacity: 0.85; }
    #context-area a:hover { text-decoration: underline; }
    .close-x:hover { color: var(--text-main); }
    .settings-btn:hover { background-color: var(--border-color); }
    .danger-btn:hover { background-color: var(--error-color); color: #fff; }
    .sync-pill:hover {
        background-color: var(--card-bg);  
        color: var(--text-main);
        border-color: var(--text-muted);
        transform: translateY(-2px);
        box-shadow: 0 12px 25px rgba(0,0,0,0.4);
    }
    .sync-pill.large-code:hover {
        background-color: var(--accent-hover);
        color: var(--btn-text);
        transform: translateY(-2px);
        box-shadow: 0 0 20px var(--focus-ring);
    }
    .inline-sync-close:hover { color: var(--text-main); }
}


/* Skip Slider Preview Styling */
.skip-preview-box {
    margin-top: 10px;
    padding: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    max-height: 140px;
    overflow-y: auto;
    font-size: 0.85rem;
    text-align: left;
}

.preview-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.preview-pill {
    padding: 4px 8px;
    border-radius: 4px;
    background: rgba(128, 128, 128, 0.1);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.preview-pill.skipped {
    opacity: 0.4;
    text-decoration: line-through;
}

.preview-pill.start-target {
    background: var(--accent-color);
    color: #ffffff;
    font-weight: bold;
    border-color: var(--accent-color);
}

/* Animations */
@keyframes subtleSuccessPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    }
    50% {
        transform: scale(1.06);
        box-shadow: 0 0 18px var(--success-bg);
        border-color: var(--success-color) !important;
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    }
}

@keyframes subtleNumPop {
    0% { transform: scale(1); }
    40% { transform: scale(1.35); }
    100% { transform: scale(1); }
}

.subtle-pop {
    display: inline-block;
    animation: subtleNumPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

#mastered-num {
    font-weight: bold;
    color: var(--text-main);
}

/* Context Area */
#context-area {
    text-align: left;
    margin-top: 30px;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-muted);
}

#context-area hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin-bottom: 25px;
}

#context-area > div:not(:empty) {
    margin-bottom: 20px;
}

#context-area a {
    color: var(--link-color, var(--accent-color));
    text-decoration: none;
}

#wiktionary-link {
    display: inline-block;
    margin-top: 5px;
}

.hidden-list {
    margin-top: 5px;
}

.wiki-examples {
    font-style: italic;
    color: var(--text-muted);
    list-style-type: circle;
    margin-top: 5px;
    margin-bottom: 10px;
}

/* ==========================================
   DERIVED TERMS & CONJUGATIONS (NEW UI)
   ========================================== */
.derived-terms-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
    margin-bottom: 20px;
}

.derived-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background-color: rgba(128, 128, 128, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    gap: 15px;
}

.derived-fr {
    font-weight: 600;
    color: var(--text-main);
    font-size: 1.05rem;
}

.derived-en {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: right;
    line-height: 1.3;
}

.conjugation-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 12px;
    max-height: 400px;
    overflow-y: auto;  
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background: rgba(128, 128, 128, 0.03);
}

.conjugation-wrapper::-webkit-scrollbar { width: 8px; }
.conjugation-wrapper::-webkit-scrollbar-track { background: transparent; }
.conjugation-wrapper::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }

.tense-block {
    width: 100%;
}

.tense-title {
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 4px;
}

.conj-table-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 8px;
}

.conj-imperative, .conj-simple-list {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.conj-cell {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 4px 0;
    border-bottom: 1px solid rgba(128, 128, 128, 0.1);
}

.conj-cell:nth-last-child(1), .conj-cell:nth-last-child(2) {
    border-bottom: none;
}

.conj-pronoun {
    color: var(--text-muted);
    font-size: 0.85rem;
    width: 75px;
    flex-shrink: 0;
    text-align: right;
}

.conj-form {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
}


/* Modals */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);  
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);  
}

.modal-overlay.open {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    width: 90%;
    max-width: 450px;
    border: var(--card-border);
    box-shadow: var(--card-shadow);
    max-height: 95vh;
    overflow-y: auto;  
    position: relative;  
}

.close-x {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.settings-group {
    margin-bottom: 20px;
}

.settings-group select {
    width: 100%;
    padding: 12px;
    font-family: var(--app-font);
    background: var(--bg-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-top: 8px;
    font-size: 1rem;
}

.settings-btn {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.settings-btn kbd {
    background: rgba(128, 128, 128, 0.2);
    border-color: rgba(128, 128, 128, 0.2);
}

.danger-btn {
    border: 1px solid var(--error-color);
    color: var(--error-color);
    margin-top: 25px;
}

.mode-choice-btn {
    padding: 20px;
    font-size: 1.2rem;
    margin-bottom: 15px;
}


/* ==========================================
   INLINE SYNC TOOLS (BOTTOM CENTERED)
   ========================================== */
.sync-floater-center {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: max-content;
}

.sync-pill {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    margin: 0;
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.sync-pill.active {
    color: var(--success-color);
    border-color: var(--success-color);
}

.sync-pill.large-code {
    padding: 12px 30px;
    font-size: 1.4rem;
    background-color: var(--accent-color);
    color: var(--btn-text);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--focus-ring);
}

.inline-input-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--accent-color);  
    border-radius: 30px;  
    display: none;
    align-items: center;
    padding: 6px 6px 6px 15px;  
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    animation: popIn 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

#inline-import-input {
    width: 100px;
    padding: 6px;
    margin: 0;
    font-size: 1.15rem;  
    font-weight: bold;
    border: none;
    background: transparent;
    color: var(--text-main);
    text-align: center;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

#inline-import-input:focus {
    box-shadow: none;
    border: none;
    outline: none;
}

#inline-import-input::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
    letter-spacing: 2px;
    font-weight: normal;
}

.inline-sync-btn {
    width: auto;
    margin: 0 0 0 10px;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: bold;
}

.inline-sync-close {
    background: transparent;
    color: var(--text-muted);
    padding: 10px;
    width: auto;
    margin: 0 5px;
    font-size: 1.1rem;
}

/* ==========================================
   Mobile Responsiveness Overrides
   ========================================== */
@media (max-width: 600px), (max-height: 750px) {
    body {
        padding: 60px 10px 70px 10px;
        justify-content: center;
    }

    .top-nav {
        position: fixed; 
        top: 0;
        padding: 15px 10px;
        margin-bottom: 0;
        background: rgba(18, 18, 18, 0.3);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    [data-theme="champs-elysees"] .top-nav,
    [data-theme="college-library"] .top-nav {
        background: rgba(255, 255, 255, 0.3);
        border-bottom: 1px solid var(--border-color);
    }

    [data-theme="college-library-night"] .top-nav {
        background: rgba(18, 18, 18, 0.4);
        border-bottom: 1px solid var(--border-color);
    }

    .top-nav a {
        font-size: 0.85rem;
    }

    .daily-goal-display {
        font-size: 0.85rem;
    }

    .sync-floater-center {
        bottom: 10px;
        width: 100%;
        gap: 8px;
    }

    .sync-pill {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
    
    .left-part,  
    .right-part, 
    #pause-cycle-btn {
        display: none !important;
    }

    .sentence-wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    #result-example-display {
        padding: 15px 20px;
        margin-bottom: 20px;
    }
    
    .flashcard {
        padding: 20px 15px 50px 15px;  
        border-radius: 12px;
    }

    .flashcard-header {
        margin-bottom: 10px;
    }

    #progress-counter, 
    .card-actions-toggle {
        font-size: 0.75rem;  
        letter-spacing: 0;  
    }

    #prompt-word {
        font-size: clamp(1.3rem, 4.5vw, 1.8rem);
        margin: 5px 0;
    }

    #prompt-word.caught-up-message {
        font-size: 1.5rem;
        margin: 30px 0;
    }

    #prompt-context {
        color: var(--text-muted);
        font-style: italic;
        font-size: 0.85rem;  
        margin-top: 0;
        margin-bottom: 15px;  
        min-height: auto;
    }

    input[type="text"] {
        font-size: 1rem;  
        padding: 12px;  
        margin-bottom: 20px;
    }

    #header-mode-toggle {
        font-size: 0.75rem;
        bottom: 15px;
        left: 15px;
    }

    .auto-advance-container {
        font-size: 0.75rem;
        bottom: 15px;
        right: 15px;
    }

    .mc-grid {
        display: flex;
        flex-direction: column;
        gap: 6px;
        margin-bottom: 10px;
        width: 100%;
    }

    #mc-0, #mc-1, #mc-2, #mc-3 {
        grid-column: auto;
        grid-row: auto;
    }

    .mc-button {
        width: 100%;
        max-width: 100%;
        aspect-ratio: auto;  
        padding: 10px 8px;  
        border-radius: 8px;
        border-bottom-width: 3px !important;  
    }

    .mc-button.pressed, 
    .mc-button:not(.error):active {
        border-bottom-width: 2px !important;
        transform: translateY(2px);
    }
    
    .mc-button.correct {
        border-bottom-width: 2px !important;
    }

    .mc-button .hotkey-hint {
        display: none;  
    }

    .mc-text {
        font-size: 0.95rem;  
    }

    button {
        font-size: 1rem;
        padding: 14px 20px;
    }

    button kbd {
        display: none;  
    }

    .modal-content {
        padding: 20px 15px;
        max-height: 85vh;
    }

    .settings-group {
        margin-bottom: 12px;
    }

    .settings-group select {
        padding: 8px;
        font-size: 0.9rem;
    }

    .settings-btn {
        padding: 10px 14px;
        font-size: 0.9rem;
        margin-bottom: 8px;
    }

    .skip-preview-box {
        max-height: 80px;
        padding: 6px;
    }
}

/* ==========================================
   PROGRESS & STATS MODAL
   ========================================== */
.stats-content {
    max-width: 750px;  
}

#streak-counter {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.progress-bar-container {
    width: 100%;
    height: 20px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--success-color);
    width: 0%;
    transition: width 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.progress-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 25px;
    font-weight: 600;
}

.stats-summary {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    gap: 15px;
}

.stat-box {
    flex: 1;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 15px 10px;
    border-radius: 12px;
    text-align: center;
}

.stat-box h3 {
    margin: 0 0 5px 0;
    color: var(--accent-color);
    font-size: 1.8rem;
}

.stat-box p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: bold;
}

.word-lists-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);  
    gap: 15px;
    max-height: 45vh;
    overflow-y: auto;
    padding-right: 5px;
}

.word-lists-container::-webkit-scrollbar {
    width: 6px;
}
.word-lists-container::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.word-list-section h3 {
    margin: 0 0 12px 0;
    font-size: 0.85rem;  
    line-height: 1.3;
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    text-align: center;  
}

.word-grid {
    display: flex;
    flex-direction: column;  
    gap: 6px;
}

.word-pill {
    background: rgba(128, 128, 128, 0.1);
    border: 1px solid var(--border-color);
    padding: 5px 8px;
    border-radius: 6px;
    font-size: 0.75rem;  
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-main);
    cursor: default;
}

.word-pill.mastered {
    background: var(--success-bg);
    border-color: var(--success-color);
    color: var(--success-color);
    font-weight: 500;
}

.word-pill.familiar {
    background: rgba(59, 130, 246, 0.1);  
    border-color: rgba(59, 130, 246, 0.4);
    color: var(--accent-color);
}

.word-pill.proficient {
    background: rgba(139, 92, 246, 0.1);  
    border-color: rgba(139, 92, 246, 0.4);
    color: #a78bfa;  
    font-weight: 500;
}

@media (max-width: 600px), (max-height: 700px) {
    .word-lists-container {
        grid-template-columns: repeat(2, 1fr);  
        gap: 12px;
    }
}

/* ==========================================
   POS COLOR CODING
   ========================================== */
.pos-noun { color: #60a5fa; background: rgba(96, 165, 250, 0.1); border-color: rgba(96, 165, 250, 0.3); }
.pos-verb { color: #f87171; background: rgba(248, 113, 113, 0.1); border-color: rgba(248, 113, 113, 0.3); }
.pos-adjective { color: #34d399; background: rgba(52, 211, 153, 0.1); border-color: rgba(52, 211, 153, 0.3); }
.pos-adverb { color: #a78bfa; background: rgba(167, 139, 250, 0.1); border-color: rgba(167, 139, 250, 0.3); }
.pos-pronoun { color: #f472b6; background: rgba(244, 114, 182, 0.1); border-color: rgba(244, 114, 182, 0.3); }
.pos-preposition { color: #fbbf24; background: rgba(251, 191, 36, 0.1); border-color: rgba(251, 191, 36, 0.3); }
.pos-conjunction { color: #2dd4bf; background: rgba(45, 212, 191, 0.1); border-color: rgba(45, 212, 191, 0.3); }
.pos-article { color: #94a3b8; background: rgba(148, 163, 184, 0.1); border-color: rgba(148, 163, 184, 0.3); }
.pos-other { color: var(--text-muted); background: rgba(128, 128, 128, 0.15); border-color: var(--border-color); }