/* ══════════════════════════════════════════════════════════════════
   FLASHCARDS MODULE — css/pages/flashcards.css
   ══════════════════════════════════════════════════════════════════ */

/* ── Panels ─────────────────────────────────────────────────────── */
.fc-panel{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px}
.fc-panel-title{font-size:11px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.6px;margin-bottom:12px}

/* ── Form elements ──────────────────────────────────────────────── */
.fc-label{display:block;font-size:12px;font-weight:500;color:var(--text2);margin-bottom:4px;margin-top:10px}
.fc-label:first-child{margin-top:0}
.fc-input{width:100%;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);color:var(--text);font-family:var(--font);font-size:13px;padding:8px 10px;outline:none;transition:border-color var(--tr)}
.fc-input:focus{border-color:var(--accent)}
.fc-input-sm{padding:5px 8px;font-size:12px}
.fc-textarea{width:100%;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);color:var(--text);font-family:var(--font);font-size:13px;padding:8px 10px;outline:none;resize:vertical;transition:border-color var(--tr);line-height:1.5;min-height:80px}
.fc-textarea:focus{border-color:var(--accent)}
.fc-file-input{font-size:12px;color:var(--text2);width:100%;cursor:pointer}
.fc-form-wrap{max-width:720px}
.fc-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.fc-form-row{display:flex;gap:12px;margin-bottom:12px}
.fc-form-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:16px;padding-top:12px;border-top:1px solid var(--border);flex-wrap:wrap}

/* ── Notice ─────────────────────────────────────────────────────── */
.fc-notice{background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);padding:8px 12px;font-size:12px;line-height:1.5}

/* ── Empty state ─────────────────────────────────────────────────── */
.fc-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 24px;color:var(--text2)}
.fc-empty h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px}
.fc-empty p{font-size:13px;color:var(--text3);max-width:320px}

/* ── Tags & badges ──────────────────────────────────────────────── */
.fc-tag{display:inline-block;background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);border-radius:20px;font-size:10px;padding:1px 7px;white-space:nowrap}
.fc-deck-badge{display:inline-block;border:1px solid;border-radius:20px;font-size:10px;font-weight:600;padding:1px 7px;white-space:nowrap}
.fc-status-badge{display:inline-block;border-radius:20px;font-size:10px;font-weight:600;padding:2px 8px;white-space:nowrap}
.fc-status-new{background:var(--accent-bg);color:var(--accent)}
.fc-status-learning{background:var(--amber-bg);color:var(--amber)}
.fc-status-review{background:var(--green-bg);color:var(--green)}
.fc-status-suspended{background:var(--bg4);color:var(--text3)}
.fc-status-buried{background:var(--bg4);color:var(--text3)}
.fc-due-badge{color:var(--amber)!important;font-weight:600}

/* ── Dashboard CTAs ──────────────────────────────────────────────── */
.fc-study-cta{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,var(--amber-bg),rgba(245,166,35,.03));border:1px solid var(--amber-border);border-radius:var(--radius-lg);padding:14px 18px;cursor:pointer;transition:border-color var(--tr);margin-bottom:12px}
.fc-study-cta:hover{border-color:var(--amber)}
.fc-study-cta svg{color:var(--amber);width:20px;height:20px;flex-shrink:0}
.fc-cta-arrow{margin-left:auto;color:var(--amber);font-size:16px;font-weight:600}
.fc-empty-cta{display:flex;align-items:center;gap:10px;background:var(--green-bg);border:1px solid var(--green-border);border-radius:var(--radius-lg);padding:12px 16px;color:var(--green);font-size:13px;margin-bottom:12px}
.fc-empty-cta svg{width:18px;height:18px;flex-shrink:0}

/* ── Activity bars (dashboard) ───────────────────────────────────── */
.fc-act-wrap{display:flex;align-items:flex-end;gap:3px;height:72px;padding-top:8px}
.fc-act-col{display:flex;flex-direction:column;align-items:center;flex:1}
.fc-act-bar-wrap{flex:1;display:flex;align-items:flex-end;width:100%;justify-content:center}
.fc-act-bar{width:70%;min-height:2px;background:var(--accent);border-radius:3px 3px 0 0;transition:height .3s}
.fc-act-label{font-size:9px;color:var(--text3);margin-top:3px}

/* ── Mini table (dashboard) ─────────────────────────────────────── */
.fc-mini-table{width:100%;border-collapse:collapse;font-size:12px}
.fc-mini-table th{font-size:10px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.5px;padding:4px 6px;border-bottom:1px solid var(--border);text-align:left}
.fc-mini-table td{padding:5px 6px;border-bottom:1px solid var(--border);color:var(--text2)}
.fc-mini-table tr:last-child td{border-bottom:none}
.fc-deck-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:middle}

/* ── Deck cards ──────────────────────────────────────────────────── */
.fc-decks-grid{display:flex;flex-direction:column;gap:10px}
.fc-deck-card{display:flex;align-items:center;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:border-color var(--tr),transform var(--tr)}
.fc-deck-card:hover{border-color:var(--border2);transform:translateY(-1px)}
.fc-deck-color-bar{width:4px;align-self:stretch;flex-shrink:0}
.fc-deck-body{flex:1;padding:12px 14px;min-width:0}
.fc-deck-name{font-size:14px;font-weight:600;color:var(--text);margin-bottom:2px}
.fc-deck-desc{font-size:11px;color:var(--text3);margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fc-deck-stats{display:flex;gap:12px;font-size:11px;color:var(--text3);flex-wrap:wrap}
.fc-deck-actions{display:flex;gap:6px;padding:12px 14px;flex-shrink:0}

/* ── Color picker ────────────────────────────────────────────────── */
.fc-color-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px;margin-bottom:4px}
.fc-color-btn{width:24px;height:24px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .15s,border-color .15s;flex-shrink:0}
.fc-color-btn:hover,.fc-color-btn.sel{border-color:var(--text);transform:scale(1.2)}

/* ── Card list table ─────────────────────────────────────────────── */
.fc-table-wrap{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;overflow-x:auto}
.fc-table-wrap table{width:100%;border-collapse:collapse;font-size:12px;min-width:560px}
.fc-table-wrap thead th{background:var(--bg3);padding:8px 10px;text-align:left;font-size:10px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);white-space:nowrap}
.fc-table-wrap tbody td{padding:8px 10px;border-bottom:1px solid var(--border);color:var(--text2);vertical-align:middle}
.fc-table-wrap tbody tr:last-child td{border-bottom:none}
.fc-table-wrap tbody tr:hover td{background:rgba(255,255,255,.02)}
.fc-cell-text{max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}
.fc-pagination{display:flex;align-items:center;justify-content:center;gap:12px;padding:12px}

/* ── Modal ───────────────────────────────────────────────────────── */
.fc-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;backdrop-filter:blur(2px)}
.fc-modal-box{background:var(--bg2);border:1px solid var(--border2);border-radius:var(--radius-xl);padding:24px;width:100%;max-width:440px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.fc-modal-title{font-size:16px;font-weight:600;margin-bottom:16px;letter-spacing:-.3px}
.fc-modal-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:16px;padding-top:12px;border-top:1px solid var(--border)}

/* ── Study session ───────────────────────────────────────────────── */
.fc-study-wrap{max-width:680px;margin:0 auto}
.fc-study-header{margin-bottom:16px}
.fc-study-progress-bar{height:4px;background:var(--bg4);border-radius:2px;overflow:hidden;margin-bottom:10px}
.fc-study-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .4s}
.fc-study-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text3);flex-wrap:wrap}
.fc-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px;min-height:180px;margin-bottom:20px;transition:border-color var(--tr)}
.fc-card.revealed{border-color:var(--border2)}
.fc-card-label{font-size:10px;font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:.8px;margin-bottom:12px}
.fc-card-content{font-size:18px;color:var(--text);line-height:1.6;white-space:pre-wrap;word-break:break-word}
.fc-card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.fc-card-divider{border:none;border-top:1px dashed var(--border2);margin:20px 0}
.fc-card-back .fc-card-content{color:var(--text2)}
.fc-card-notes{font-size:12px;color:var(--text3);background:var(--bg3);border-radius:var(--radius);padding:8px 12px;margin-top:12px}
.fc-study-actions{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap}
.fc-reveal-btn{padding:12px 28px;font-size:15px;max-width:280px;width:100%;justify-content:center}
.fc-rating-wrap{text-align:center}
.fc-rating-label{font-size:12px;color:var(--text3);margin-bottom:12px}
.fc-rating-btns{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.fc-rating-btn{flex-direction:column;align-items:center;padding:12px 8px;gap:4px;border-radius:var(--radius-lg);border:1px solid var(--border2);background:var(--bg2);transition:background var(--tr),border-color var(--tr),transform .1s}
.fc-rating-btn:hover{transform:translateY(-2px)}
.fc-rating-icon{font-size:16px;line-height:1}
.fc-rating-name{font-size:12px;font-weight:600;color:var(--text)}
.fc-rating-hint{font-size:10px;color:var(--text3);font-family:var(--mono)}
.fc-btn-fail{border-color:rgba(242,95,92,.4)}.fc-btn-fail:hover{background:var(--red-bg);border-color:var(--red)}
.fc-btn-hard{border-color:rgba(245,166,35,.3)}.fc-btn-hard:hover{background:var(--amber-bg);border-color:var(--amber)}
.fc-btn-good{border-color:var(--accent-border)}.fc-btn-good:hover{background:var(--accent-bg);border-color:var(--accent)}
.fc-btn-easy{border-color:var(--green-border)}.fc-btn-easy:hover{background:var(--green-bg);border-color:var(--green)}

/* ── Reports chart ───────────────────────────────────────────────── */
.fc-chart-30{display:flex;align-items:flex-end;gap:2px;height:80px;padding-top:8px;overflow-x:auto}
.fc-chart-col{display:flex;flex-direction:column;align-items:center;flex:1;min-width:6px}
.fc-chart-bar-wrap{flex:1;display:flex;align-items:flex-end;width:100%;justify-content:center;position:relative}
.fc-chart-bar-bg{position:absolute;inset:0;background:var(--bg4);border-radius:2px 2px 0 0}
.fc-chart-bar{width:80%;min-height:2px;border-radius:2px 2px 0 0;position:relative;z-index:1;transition:height .3s}
.fc-chart-label{font-size:8px;color:var(--text3);margin-top:2px;white-space:nowrap}

/* ── Responsive ─────────────────────────────────────────────────── */
@media(max-width:900px){
  #page-flashcards .topbar{flex-wrap:wrap;gap:8px}
  #page-flashcards [style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important}
}
@media(max-width:768px){
  .fc-form-grid{grid-template-columns:1fr}
  .fc-form-row{flex-direction:column}
  .fc-rating-btns{grid-template-columns:repeat(2,1fr)}
  .fc-card{padding:20px;min-height:140px}
  .fc-card-content{font-size:16px}
  .fc-deck-card{flex-wrap:wrap}
  .fc-deck-actions{width:100%;border-top:1px solid var(--border);padding-top:8px}
  .fc-reveal-btn{max-width:100%}
}
@media(max-width:480px){
  .fc-study-wrap{max-width:100%}
  .fc-card{padding:16px}
  .fc-card-content{font-size:15px}
  .fc-rating-btn{padding:10px 6px}
}

/* ── Materiais integration ───────────────────────────────────────── */
.fc-source-link{display:inline-flex;align-items:center;gap:4px;font-size:10px;color:var(--accent);background:var(--accent-bg);border:1px solid var(--accent-border,var(--accent));border-radius:20px;padding:1px 7px;cursor:pointer;white-space:nowrap;transition:border-color var(--tr);margin-top:3px}
.fc-source-link:hover{border-color:var(--accent);opacity:.85}
.fc-source-static{display:inline-flex;align-items:center;gap:4px;font-size:11px;color:var(--text3);background:var(--bg3);border:1px solid var(--border);border-radius:20px;padding:2px 8px;white-space:nowrap}
.fc-source-banner{display:flex;align-items:center;gap:8px;background:var(--accent-bg);border:1px solid var(--accent-border,var(--accent));border-radius:var(--radius-lg);padding:8px 12px;font-size:12px;color:var(--text2);margin-bottom:10px;flex-wrap:wrap}
.fc-source-banner strong{color:var(--text)}
.fc-source-banner button{margin-left:auto;flex-shrink:0}
.fc-source-info{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px;padding:8px 10px;background:var(--bg3);border:1px solid var(--border2);border-radius:var(--radius);font-size:12px;color:var(--text3)}
.fc-source-info strong{color:var(--text2)}