/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    border: none;
    font-family: "Rajdhani", sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.5px;
}

.btn-primary { background-color: var(--neon-cyan); color: var(--bg-void); }
.btn-primary:hover { box-shadow: var(--glow-cyan); }

.btn-secondary { background-color: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--text-dim); }
.btn-secondary:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }

.btn-danger { background-color: var(--neon-magenta); color: var(--text-primary); }
.btn-danger:hover { box-shadow: var(--glow-magenta); }

/* Icon buttons */
.btn-icon {
    background: none;
    border: 1px solid var(--text-dim);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s ease;
    padding: 0;
}
.btn-icon.edit-card:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); box-shadow: var(--glow-cyan); }
.btn-icon.delete-card:hover,
.btn-icon.delete-deck:hover { color: var(--neon-magenta); border-color: var(--neon-magenta); box-shadow: var(--glow-magenta); }

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    border-radius: 4px;
    background-color: var(--neon-magenta);
    color: var(--text-primary);
    font-size: 32px;
    font-weight: 300;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    animation: glow-pulse-magenta 3s ease-in-out infinite;
    transition: transform 0.2s ease;
}
.fab:hover { transform: scale(1.1); }

@keyframes glow-pulse-magenta {
    0%, 100% { box-shadow: var(--glow-magenta); }
    50% { box-shadow: 0 0 16px #ff00aa, 0 0 40px #ff00aa66; }
}

/* Inputs */
.input-group { margin-bottom: 20px; }

.input-label {
    display: block;
    margin-bottom: 8px;
    font-family: "Rajdhani", sans-serif;
    color: var(--text-secondary);
    font-size: 13px;
    letter-spacing: 1px;
}

input[type="text"],
input[type="email"],
textarea,
select {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-panel);
    border: 1px solid var(--text-dim);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: "Share Tech Mono", monospace;
    font-size: 14px;
    box-sizing: border-box;
    resize: vertical;
}

textarea { min-height: 100px; }

input:focus, textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 5px rgba(0, 245, 255, 0.3);
}

/* Tags */
.tag-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
    min-height: 32px;
}

.tag-chip {
    background: rgba(191, 0, 255, 0.15);
    border: 1px solid var(--neon-purple);
    color: var(--neon-purple);
    padding: 4px 10px;
    border-radius: 4px;
    font-family: "Rajdhani", sans-serif;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.remove-tag { cursor: pointer; opacity: 0.7; font-size: 14px; }
.remove-tag:hover { opacity: 1; color: var(--neon-magenta); }

/* Badges */
.badge {
    padding: 2px 8px;
    font-size: 12px;
    border-radius: 4px;
    font-family: "Rajdhani", sans-serif;
    letter-spacing: 0.5px;
}

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(10, 10, 15, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background-color: var(--bg-elevated);
    border: 1px solid var(--neon-cyan);
    padding: 30px;
    width: 90%;
    max-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--glow-cyan);
}

.modal-title {
    margin-bottom: 24px;
    color: var(--neon-cyan);
    font-size: 18px;
    letter-spacing: 2px;
}

.modal-footer {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--text-dim);
}

.preview-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--text-dim);
}

.preview-text { font-size: 16px; line-height: 1.5; word-break: break-word; }

/* Card tiles */
.card-tile {
    background: var(--bg-panel);
    border: 1px solid var(--text-dim);
    padding: 20px;
    position: relative;
    transition: border-color 0.3s ease;
}
.card-tile:hover { border-color: var(--neon-cyan); }
.deck-tile { cursor: pointer; }

.tile-header { margin-bottom: 8px; }
.deck-name { font-size: 16px; margin-bottom: 8px; color: var(--text-primary); }
.tile-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
}
.card-count { font-size: 12px; color: var(--text-secondary); font-family: "Rajdhani", sans-serif; letter-spacing: 1px; }

/* Mini cards in editor */
.mini-card { display: flex; flex-direction: column; gap: 12px; }
.mini-card-content { flex: 1; }

.front-preview {
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.back-preview {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mini-card-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.mini-card:hover .mini-card-actions { opacity: 1; }

/* Editor header */
.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    gap: 20px;
    flex-wrap: wrap;
}

.header-info h1 { font-size: 24px; margin-bottom: 4px; outline: none; }
.header-info h1:focus { border-bottom: 1px solid var(--neon-cyan); }

.header-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* Search */
.search-bar {
    width: 100%;
    padding: 10px 16px;
    background: var(--bg-panel);
    border: 1px solid var(--text-dim);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: "Share Tech Mono", monospace;
}
.search-bar:focus { outline: none; border-color: var(--neon-cyan); }
.editor-toolbar { margin-bottom: 24px; }

/* View header */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}
.view-header h1 { font-size: 24px; }

/* Error */
.error {
    color: var(--neon-magenta);
    font-family: "Share Tech Mono", monospace;
    padding: 20px;
    border: 1px solid var(--neon-magenta);
    border-radius: 4px;
}

.neon-value { color: var(--neon-cyan); font-family: "Share Tech Mono", monospace; }

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--text-dim);
    font-size: 14px;
}
.stat-row:last-child { border-bottom: none; }

/* ===================== LEARN MODE ===================== */

.study-view { display: flex; flex-direction: column; min-height: calc(100vh - 80px); }

.study-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.study-progress {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    min-width: 200px;
}

.progress-bar-track { height: 4px; background: var(--text-dim); border-radius: 2px; overflow: hidden; }
.progress-bar-fill {
    height: 100%;
    background: var(--neon-cyan);
    border-radius: 2px;
    transition: width 0.4s ease;
    box-shadow: var(--glow-cyan);
}

.study-stats { display: flex; gap: 8px; }

.stat-chip {
    padding: 3px 10px;
    border-radius: 4px;
    font-family: "Rajdhani", sans-serif;
    font-size: 13px;
    font-weight: 600;
}
.stat-chip.again { background: rgba(255,0,170,0.15); color: var(--neon-magenta); border: 1px solid var(--neon-magenta); }
.stat-chip.hard  { background: rgba(255,230,0,0.1);  color: var(--neon-yellow);  border: 1px solid var(--neon-yellow); }
.stat-chip.good  { background: rgba(57,255,20,0.1);  color: var(--neon-green);   border: 1px solid var(--neon-green); }
.stat-chip.easy  { background: rgba(0,245,255,0.1);  color: var(--neon-cyan);    border: 1px solid var(--neon-cyan); }

.study-arena {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    padding: 20px 0;
}

.study-card {
    width: 100%;
    max-width: 680px;
    min-height: 340px;
    perspective: 1200px;
}

.study-card-face {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 340px;
    padding: 40px;
    gap: 20px;
}

.flip-card-front.study-card-face { animation: glow-pulse 3s ease-in-out infinite; }

.card-face-label {
    font-family: "Rajdhani", sans-serif;
    font-size: 12px;
    letter-spacing: 2px;
    position: absolute;
    top: 16px;
    left: 20px;
}

.card-face-content { font-size: 24px; line-height: 1.5; color: var(--text-primary); max-width: 540px; word-break: break-word; }
.card-hint { font-size: 13px; font-style: italic; margin-top: -8px; }

.reveal-btn { margin-top: 8px; font-size: 16px; padding: 12px 32px; }

.rating-section { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-top: 16px; width: 100%; }
.rating-label { font-size: 12px; letter-spacing: 1px; }

.rating-buttons { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

.rating-btn { flex-direction: column; gap: 4px; padding: 12px 18px; font-size: 13px; min-width: 80px; }
.rating-icon { font-size: 18px; }

.again-btn { background: var(--neon-magenta); color: var(--bg-void); }
.again-btn:hover { box-shadow: var(--glow-magenta); }

.hard-btn { background: var(--neon-yellow); color: var(--bg-void); }
.hard-btn:hover { box-shadow: 0 0 8px var(--neon-yellow); }

.good-btn { background: var(--neon-green); color: var(--bg-void); }
.good-btn:hover { box-shadow: var(--glow-green); }

.easy-btn { background: var(--neon-cyan); color: var(--bg-void); }
.easy-btn:hover { box-shadow: var(--glow-cyan); }

/* Complete screen */
.complete-view { display: flex; justify-content: center; align-items: center; min-height: calc(100vh - 80px); }
.complete-card { max-width: 540px; width: 100%; text-align: center; padding: 48px 40px; }
.complete-title { font-size: 28px; color: var(--neon-cyan); margin-bottom: 24px; }
.complete-sub { margin-bottom: 32px; }
.complete-stats { margin: 24px 0; text-align: left; }
.complete-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }

/* Deck picker for learn mode */
.deck-picker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* Settings */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.settings-section h3 { margin-bottom: 20px; color: var(--neon-cyan); font-size: 14px; letter-spacing: 2px; }

/* Drop zone */
.drop-zone {
    border: 1px dashed var(--neon-cyan);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 4px;
}
.drop-zone:hover, .drop-zone.drag-over { background: rgba(0, 245, 255, 0.05); box-shadow: var(--glow-cyan); }
.drop-zone-label { font-family: "Rajdhani", sans-serif; color: var(--neon-cyan); font-size: 14px; letter-spacing: 2px; }

/* ===================== TAG FIELD (inline chips) ===================== */

.tag-field {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    background: var(--bg-panel);
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    cursor: text;
    min-height: 44px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.tag-field:focus-within {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 5px rgba(0, 245, 255, 0.3);
}

.tag-chips { display: contents; }

.tag-chip {
    background: rgba(191, 0, 255, 0.15);
    border: 1px solid var(--neon-purple);
    color: var(--neon-purple);
    padding: 3px 8px 3px 10px;
    border-radius: 4px;
    font-family: "Rajdhani", sans-serif;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    animation: chip-pop 0.15s ease;
}

@keyframes chip-pop {
    from { transform: scale(0.7); opacity: 0; }
    to   { transform: scale(1);   opacity: 1; }
}

.remove-tag {
    cursor: pointer;
    opacity: 0.6;
    font-size: 15px;
    line-height: 1;
    padding: 0 2px;
    border-radius: 2px;
    transition: opacity 0.15s, color 0.15s;
}
.remove-tag:hover { opacity: 1; color: var(--neon-magenta); }

.tag-entry {
    flex: 1;
    min-width: 120px;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: "Share Tech Mono", monospace;
    font-size: 14px;
    padding: 2px 0;
    box-shadow: none;
}

.tag-hint {
    font-size: 11px;
    margin-top: 5px;
    letter-spacing: 0.3px;
}

/* ===================== MODE SELECTION ===================== */

.mode-select-view .view-header { margin-bottom: 32px; }

.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.mode-card {
    cursor: pointer;
    padding: 28px 24px;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mode-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
    border-color: var(--neon-cyan);
}

.mode-icon { font-size: 32px; margin-bottom: 4px; }

.mode-card h3 {
    font-size: 14px;
    letter-spacing: 1.5px;
    color: var(--text-primary);
    margin: 0;
}

.mode-card p { font-size: 13px; line-height: 1.6; }

.mode-details {
    list-style: none;
    padding: 0;
    margin: 4px 0 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mode-details li {
    font-size: 12px;
    color: var(--text-dim);
    padding-left: 14px;
    position: relative;
}
.mode-details li::before { content: "›"; position: absolute; left: 0; color: var(--text-secondary); }

.mode-tag {
    display: inline-block;
    padding: 3px 10px;
    border: 1px solid;
    border-radius: 4px;
    font-family: "Rajdhani", sans-serif;
    font-size: 11px;
    letter-spacing: 1px;
    align-self: flex-start;
    margin-top: auto;
}

/* ===================== MULTIPLE CHOICE ===================== */

.choice-card {
    width: 100%;
    max-width: 680px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.choice-question {
    font-size: 28px;
    font-family: "Orbitron", sans-serif;
    text-align: center;
    color: var(--text-primary);
    word-break: break-word;
    line-height: 1.4;
}

.choice-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    width: 100%;
    max-width: 560px;
}

.choice-option {
    background: var(--bg-elevated);
    border: 1px solid var(--text-dim);
    color: var(--text-primary);
    padding: 14px 16px;
    text-align: left;
    gap: 12px;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
    font-size: 14px;
    cursor: pointer;
    align-items: flex-start;
}

.choice-option:hover:not(:disabled) {
    border-color: var(--neon-cyan);
    background: rgba(0, 245, 255, 0.06);
}

.choice-letter {
    font-family: "Orbitron", sans-serif;
    font-size: 13px;
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-top: 1px;
}

.choice-text { word-break: break-word; }

/* Feedback states */
.choice-option.option-correct {
    border-color: var(--neon-green);
    background: rgba(57, 255, 20, 0.1);
    box-shadow: var(--glow-green);
}
.choice-option.option-correct .choice-letter { color: var(--neon-green); }

.choice-option.option-wrong {
    border-color: var(--neon-magenta);
    background: rgba(255, 0, 170, 0.1);
    box-shadow: var(--glow-magenta);
}
.choice-option.option-wrong .choice-letter { color: var(--neon-magenta); }

.choice-option.option-dim { opacity: 0.35; }

.choice-feedback {
    font-family: "Rajdhani", sans-serif;
    font-size: 16px;
    letter-spacing: 1px;
    text-align: center;
    min-height: 24px;
}

.feedback-correct { color: var(--neon-green); }
.feedback-wrong   { color: var(--neon-magenta); }
.feedback-wrong strong { color: var(--text-primary); }

/* ===================== 2-SCHNITT SPRINT ===================== */

.sprint-instruction {
    text-align: center;
    font-size: 13px;
    margin-top: -24px;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.sprint-front-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
    width: 100%;
}

.sprint-quick-btns {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.sprint-back-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 16px;
}

.sprint-reveal-btn { font-size: 13px; padding: 8px 24px; }

.sprint-known-btn {
    background: var(--neon-green);
    color: var(--bg-void);
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 700;
}
.sprint-known-btn:hover { box-shadow: var(--glow-green); }

.sprint-unknown-btn {
    background: var(--neon-magenta);
    color: var(--bg-void);
    border: none;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 700;
}
.sprint-unknown-btn:hover { box-shadow: var(--glow-magenta); }

/* Phase intro screens */
.phase-intro-view {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 80px);
}

.phase-intro-card {
    max-width: 480px;
    width: 100%;
    text-align: center;
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.phase-intro-icon { font-size: 48px; margin-bottom: 8px; }
.phase-intro-card h2 { font-size: 20px; letter-spacing: 2px; }

/* ===================== SIDEBAR PROFILE ===================== */

.active-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    margin-top: 4px;
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.2s;
}
.active-profile:hover { border-color: var(--neon-cyan); }

.profile-avatar { font-size: 20px; }
.profile-name { font-family: "Rajdhani", sans-serif; font-size: 14px; color: var(--text-secondary); letter-spacing: 0.5px; }

/* Profile modal */
.profile-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.profile-tile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    transition: border-color 0.2s, background 0.2s;
}
.profile-tile:hover { border-color: var(--neon-cyan); background: rgba(0,245,255,0.04); }
.active-profile-tile { border-color: var(--neon-cyan); background: rgba(0,245,255,0.08); }

.profile-tile-avatar { font-size: 24px; }
.profile-tile-name { font-family: "Rajdhani", sans-serif; font-size: 16px; flex: 1; }
.profile-active-dot { color: var(--neon-cyan); font-size: 10px; }

.profile-tile-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.15s;
}
.profile-tile:hover .profile-tile-actions { opacity: 1; }
.btn-profile-select { color: var(--neon-cyan); }
.btn-profile-edit   { color: var(--text-secondary); }
.btn-profile-select:hover { color: var(--neon-green); }
.btn-profile-edit:hover   { color: var(--neon-cyan); }

.profile-create {
    padding-top: 20px;
    border-top: 1px solid var(--text-dim);
}

.avatar-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.avatar-btn {
    width: 40px;
    height: 40px;
    font-size: 20px;
    border: 1px solid var(--text-dim);
    background: var(--bg-panel);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.15s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.avatar-btn:hover { border-color: var(--neon-cyan); transform: scale(1.1); }
.avatar-btn.selected { border-color: var(--neon-cyan); background: rgba(0,245,255,0.1); box-shadow: var(--glow-cyan); }

/* ===================== STATS VIEW ===================== */

.stats-view .view-header { margin-bottom: 24px; }

.stats-hero {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 8px;
}

.hero-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 16px;
    gap: 6px;
}

.hero-icon { font-size: 28px; }
.hero-value { font-family: "Orbitron", sans-serif; font-size: 32px; font-weight: 700; color: var(--neon-cyan); }
.hero-label { font-family: "Rajdhani", sans-serif; font-size: 12px; letter-spacing: 1px; }

.deck-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.deck-stat-card { padding: 20px; display: flex; flex-direction: column; gap: 14px; }

.deck-stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.deck-stat-progress { display: flex; flex-direction: column; gap: 6px; }

.progress-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.deck-stat-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    border-top: 1px solid var(--text-dim);
}

.btn-reset-stats {
    background: transparent;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    border-radius: 4px;
    padding: 2px 7px;
    font-size: 14px;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s, border-color 0.2s;
}
.btn-reset-stats:hover {
    color: var(--neon-magenta);
    border-color: var(--neon-magenta);
}

/* ===================== TAG FILTER ===================== */

.tag-filter-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tag-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-filter-chip {
    padding: 4px 12px;
    font-size: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--text-dim);
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}
.tag-filter-chip:hover { border-color: var(--neon-purple); color: var(--neon-purple); }
.tag-filter-chip.active { border-color: var(--neon-purple); color: var(--neon-purple); background: rgba(191,0,255,0.1); box-shadow: 0 0 6px rgba(191,0,255,0.3); }

/* ===================== AI TUTOR CHAT ===================== */

.tutor-modal {
    max-width: 560px;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 24px;
    max-height: 85vh;
}

.tutor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.tutor-card-context {
    font-size: 13px;
    margin-top: 4px;
    font-family: "Share Tech Mono", monospace;
}

.tutor-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px 0;
    min-height: 200px;
    max-height: 340px;
    border-top: 1px solid var(--text-dim);
    border-bottom: 1px solid var(--text-dim);
    margin: 0 -4px;
    padding: 12px 4px;
}

.tutor-msg {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.tutor-msg.user { flex-direction: row-reverse; }

.tutor-msg-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }

.tutor-msg-content {
    background: var(--bg-panel);
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.5;
    max-width: 80%;
    word-break: break-word;
}

.tutor-msg.user .tutor-msg-content {
    border-color: var(--neon-cyan);
    background: rgba(0,245,255,0.05);
    color: var(--text-primary);
}

.tutor-msg.assistant .tutor-msg-content {
    border-color: var(--text-dim);
    color: var(--text-primary);
}

.tutor-quick-btns {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 10px 0;
}

.tutor-quick {
    font-size: 11px;
    padding: 5px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--text-dim);
    color: var(--text-secondary);
    letter-spacing: 0.3px;
}
.tutor-quick:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }

.tutor-input-row {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.tutor-input-row input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-panel);
    border: 1px solid var(--text-dim);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: "Share Tech Mono", monospace;
    font-size: 14px;
}
.tutor-input-row input:focus { outline: none; border-color: var(--neon-cyan); }

.tutor-btn {
    font-size: 12px;
    padding: 6px 14px;
    color: var(--text-secondary);
    border-color: var(--text-dim);
}
.tutor-btn:hover { border-color: var(--neon-cyan); color: var(--neon-cyan); }

/* ===================== DECK GENERATOR ===================== */

.generator-modal {
    max-width: 560px;
}

.ai-status-ok,
.ai-status-warning {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 13px;
}

.ai-status-ok      { background: rgba(57,255,20,0.06);  border: 1px solid rgba(57,255,20,0.3); }
.ai-status-warning { background: rgba(255,230,0,0.06);  border: 1px solid rgba(255,230,0,0.3); }

.gen-row {
    display: flex;
    gap: 16px;
}

.gen-spinner {
    font-size: 48px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.gen-progress-area {
    text-align: left;
    margin: 0 auto;
    max-width: 440px;
}

.gen-preview-box {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 60px;
}

.gen-card-preview {
    font-size: 13px;
    color: var(--neon-cyan);
    font-family: "Share Tech Mono", monospace;
    padding: 4px 8px;
    border-left: 2px solid var(--neon-cyan);
    animation: fade-in 0.3s ease;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}

.gen-error-pre {
    background: var(--bg-panel);
    border: 1px solid var(--neon-magenta);
    padding: 12px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--neon-magenta);
    text-align: left;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 200px;
    overflow-y: auto;
    margin-top: 16px;
}

/* Empty state */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 40px;
    border: 1px dashed var(--text-dim);
    border-radius: 4px;
    gap: 12px;
}

.empty-icon { font-size: 48px; opacity: 0.6; }

.empty-state h3 {
    font-size: 16px;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

/* Mobile */
@media (max-width: 768px) {
    .rating-btn { min-width: 70px; padding: 10px 12px; }
    .card-face-content { font-size: 18px; }
    .study-card-face { padding: 24px 20px; min-height: 260px; }
    .fab { bottom: 80px; right: 20px; }
    .choice-options { grid-template-columns: 1fr; }
    .choice-question { font-size: 22px; }
    .choice-card { padding: 24px 20px; }
    .mode-grid { grid-template-columns: 1fr; }
    .sprint-quick-btns, .sprint-back-actions { flex-direction: column; align-items: stretch; }
}

/* ─── Audio Controls ──────────────────────────────────────────────────────── */

.speak-btn {
    background: transparent;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
    line-height: 1;
}
.speak-btn:hover {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
}

.audio-toggle-btn {
    background: transparent;
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    padding: 3px 7px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0.4;
}
.audio-toggle-btn.on  { opacity: 1; border-color: var(--neon-cyan); color: var(--neon-cyan); }
.audio-toggle-btn.off { opacity: 0.35; }
.audio-toggle-btn:hover { opacity: 0.8; }

.mic-btn {
    border: 1px solid var(--neon-magenta);
    color: var(--neon-magenta);
    background: transparent;
    border-radius: 4px;
    padding: 7px 18px;
    font-family: "Share Tech Mono", monospace;
    font-size: 13px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.2s;
}
.mic-btn:hover { background: rgba(255,0,255,0.08); }

@keyframes mic-pulse {
    0%,100% { box-shadow: 0 0 0 0 rgba(255,0,255,0.5); }
    50%      { box-shadow: 0 0 0 8px rgba(255,0,255,0); }
}
.mic-btn.mic-active {
    background: rgba(255,0,255,0.15);
    animation: mic-pulse 0.8s ease infinite;
}

/* ─── AI Backend Tiles ────────────────────────────────────────────────────── */

.backend-tile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid var(--text-dim);
    border-radius: 4px;
    margin-bottom: 8px;
    transition: border-color 0.2s;
    flex-wrap: wrap;
}
.backend-tile:hover { border-color: var(--neon-cyan); }
.backend-active { border-color: var(--neon-cyan); background: rgba(0,245,255,0.04); }

.backend-tile-left {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    flex: 1;
    min-width: 0;
}
.backend-type-badge {
    font-family: "Rajdhani", sans-serif;
    font-size: 11px;
    letter-spacing: 1px;
    border: 1px solid;
    border-radius: 3px;
    padding: 2px 6px;
    white-space: nowrap;
    margin-top: 2px;
}
.backend-name {
    font-family: "Rajdhani", sans-serif;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.backend-dot { color: var(--neon-cyan); font-size: 10px; }
.backend-detail { font-size: 12px; margin-top: 2px; word-break: break-all; }

.backend-tile-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* ── Typing Module ──────────────────────────────────────────────────────────── */

.typing-picker-view {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 16px 40px;
}

.typing-exercise-view {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 16px;
}

.typing-text-container {
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 22px;
    line-height: 1.8;
    letter-spacing: 2px;
    cursor: text;
    min-height: 100px;
    word-break: break-all;
    text-align: center;
}

#keyboard-container {
    display: flex;
    justify-content: center;
}

.typing-char {
    color: var(--fc, var(--text-secondary));
    position: relative;
    transition: color 0.05s;
}

.typed-correct {
    color: var(--neon-green) !important;
}

.typed-wrong {
    color: var(--neon-magenta) !important;
    background: rgba(255, 0, 100, 0.15);
    border-radius: 2px;
}

.typing-cursor {
    color: #fff !important;
    border-bottom: 3px solid var(--neon-cyan);
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

.typing-hidden-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 1px;
    height: 1px;
}

.typing-loader {
    text-align: center;
    color: var(--neon-cyan);
    font-family: 'Share Tech Mono', monospace;
    padding: 60px;
    animation: pulse-cyan 1s infinite;
}

kbd {
    font-family: 'Share Tech Mono', monospace;
}

/* ── Reading Lab ──────────────────────────────────────────────────────────── */

.reading-view {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px 40px;
}

/* Top row: KI-Generate / Library / Custom — 3 equal columns, stack on mobile */
.reading-top-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.reading-action-card {
    display: flex;
    flex-direction: column;
}

/* Bottom row: Reading aids / Font size / Highlighting */
.reading-bottom-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 16px;
}

.reading-tool-card {
    display: flex;
    flex-direction: column;
}

@media (max-width: 700px) {
    .reading-top-row,
    .reading-bottom-row { grid-template-columns: 1fr; }
}

.reading-text-area {
    min-height: 300px;
    padding: 28px;
    line-height: 2;
}

.reading-paragraph {
    font-size: 18px;
    line-height: 2;
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 0.5px;
}

.reading-token {
    transition: background 0.15s;
    border-radius: 2px;
    padding: 0 1px;
}

.reading-token:hover {
    background: rgba(255,255,255,0.08);
}

.reading-token.tts-active {
    background: rgba(255, 255, 255, 0.18);
    border-radius: 3px;
    outline: 1px solid rgba(255,255,255,0.35);
}

/* ── Texts Section (Database view) ─────────────────────── */
.texts-section {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(180,0,255,0.25);
}

.texts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.texts-header h2 {
    margin: 0;
    font-size: 18px;
    letter-spacing: 2px;
}