:root {
  --theme-color: #4f46e5;
  --theme-light: #e0e7ff;
  --theme-dark: #312e81;
  --theme-rgb: 79, 70, 229;
  --bg-app: #0f0f1a;
  --bg-sidebar: #13131f;
  --bg-topbar: #13131f;
  --bg-doc: #ffffff;
  --text-primary: #f0f0ff;
  --text-secondary: #9090b0;
  --text-doc: #1a1a2e;
  --border-subtle: rgba(255,255,255,0.06);
  --sidebar-w: 230px;
  --topbar-h: 54px;
  --font-doc: 'Inter', sans-serif;
  --font-size-doc: 13px;
  --q-spacing: 20px;
  --transition: 0.18s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg-app);color:var(--text-primary);min-height:100vh;overflow-x:hidden}
#app{display:flex;min-height:100vh}

/* SIDEBAR */
.sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;position:fixed;left:0;top:0;bottom:0;z-index:100;overflow-y:auto;transition:transform var(--transition)}
.sidebar.hidden{transform:translateX(-100%)}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:18px 16px 14px;border-bottom:1px solid var(--border-subtle)}
.brand-icon{width:30px;height:30px;background:linear-gradient(135deg,var(--theme-color),var(--theme-dark));border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;box-shadow:0 4px 12px rgba(var(--theme-rgb),.4);flex-shrink:0}
.sidebar-brand>span{font-weight:800;font-size:1rem;background:linear-gradient(90deg,#fff,rgba(255,255,255,.55));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sidebar-nav{flex:1;padding:10px 8px;display:flex;flex-direction:column;gap:2px}
.nav-section-label{font-size:.63rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--text-secondary);padding:8px 8px 3px}
.nav-btn{display:flex;align-items:center;gap:8px;padding:8px 10px;border:none;background:transparent;color:rgba(255,255,255,.72);border-radius:6px;cursor:pointer;font-size:.8rem;font-weight:500;font-family:inherit;text-align:left;transition:all var(--transition);width:100%}
.nav-btn:hover{background:rgba(var(--theme-rgb),.16);color:#fff;transform:translateX(2px)}
.nav-btn.export-btn{margin-top:4px;background:linear-gradient(135deg,var(--theme-color),var(--theme-dark));color:#fff;font-weight:600;box-shadow:0 4px 14px rgba(var(--theme-rgb),.35)}
.nav-btn.export-btn:hover{transform:scale(1.02);box-shadow:0 6px 20px rgba(var(--theme-rgb),.5)}
.nav-icon{width:20px;text-align:center;font-size:.88rem;flex-shrink:0}
.nav-divider{height:1px;background:var(--border-subtle);margin:6px 0}
.sidebar-footer{padding:10px 16px;font-size:.68rem;color:var(--text-secondary);border-top:1px solid var(--border-subtle)}

/* MAIN */
.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh;transition:margin-left var(--transition)}
.main-content.full{margin-left:0}
.topbar{height:var(--topbar-h);background:var(--bg-topbar);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;padding:0 18px;gap:12px;position:sticky;top:0;z-index:90;backdrop-filter:blur(12px)}
.topbar-toggle{background:none;border:none;color:var(--text-secondary);font-size:1.1rem;cursor:pointer;padding:5px;border-radius:5px;transition:all var(--transition)}
.topbar-toggle:hover{background:rgba(255,255,255,.08);color:#fff}
.topbar-title{font-weight:700;font-size:.88rem;color:rgba(255,255,255,.75);flex:1}
.topbar-actions{display:flex;gap:7px}
.topbar-btn{padding:6px 13px;border:1px solid var(--border-subtle);background:rgba(255,255,255,.04);color:rgba(255,255,255,.7);border-radius:6px;font-size:.78rem;font-weight:500;font-family:inherit;cursor:pointer;transition:all var(--transition)}
.topbar-btn:hover{background:rgba(255,255,255,.1);color:#fff}
.topbar-btn.primary{background:var(--theme-color);border-color:var(--theme-color);color:#fff;font-weight:600}
.topbar-btn.primary:hover{background:var(--theme-dark);border-color:var(--theme-dark)}

/* DOCUMENT WRAPPER */
.document-wrapper{flex:1;background:#191926;padding:32px 20px 60px;display:flex;justify-content:center;overflow-y:auto}

/* A4 PAGE */
.edu-document{width:794px;min-height:1123px;background:var(--bg-doc);border-radius:12px;box-shadow:0 8px 40px rgba(0,0,0,.28);font-family:var(--font-doc);font-size:var(--font-size-doc);color:var(--text-doc);padding:48px 52px 48px;position:relative}

/* EDITABLE */
.editable{outline:none;border-radius:3px;transition:background .15s,box-shadow .15s;cursor:text}
.editable:hover{background:rgba(var(--theme-rgb),.055);box-shadow:inset 0 0 0 1px rgba(var(--theme-rgb),.18)}
.editable:focus{background:rgba(var(--theme-rgb),.08);box-shadow:inset 0 0 0 2px rgba(var(--theme-rgb),.4)}
.editable:empty::before{content:attr(data-placeholder);color:#b0b0c0;font-style:italic;pointer-events:none}

/* ===== HEADER ===== */
.doc-header{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:0;padding-bottom:18px;position:relative}

/* Resizable logo wrapper */
.header-logo-resizable{
  resize:both;
  overflow:hidden;
  width:100%;
  min-width:80px;
  min-height:60px;
  max-width:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  border:2px dashed transparent;
  border-radius:8px;
  transition:border-color var(--transition);
  position:relative;
}
.header-logo-resizable:hover{border-color:rgba(var(--theme-rgb),.3)}
/* resize handle indicator */
.header-logo-resizable::after{
  content:'⤡';
  position:absolute;
  bottom:3px;right:4px;
  font-size:.7rem;color:rgba(var(--theme-rgb),.5);
  pointer-events:none;
}

.logo-placeholder{width:100%;height:100%;min-height:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;cursor:pointer;background:rgba(var(--theme-rgb),.04);border-radius:6px}
.logo-placeholder:hover{background:rgba(var(--theme-rgb),.1)}
.logo-icon{font-size:2rem}
.logo-hint{font-size:.68rem;color:#aaa;text-align:center;max-width:200px;line-height:1.3}
.logo-img{width:100%;height:100%;object-fit:contain;border-radius:6px;cursor:pointer;display:block}

.doc-main-title{
  font-size:1.7em;
  font-weight:900;
  color:var(--text-doc);
  text-align:center;
  letter-spacing:-0.5px;
  line-height:1.1;
  padding:4px 8px;
  width:100%;
}

/* STUDENT INFO */
.student-info-bar{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 12px;padding:12px 14px;background:rgba(var(--theme-rgb),.04);border-radius:8px;border:1px solid rgba(var(--theme-rgb),.1)}
.info-field{display:flex;align-items:center;gap:6px;flex:1;min-width:170px}
.info-field.compact{flex:0 0 auto;min-width:unset}
.info-label{font-size:.75em;font-weight:700;color:var(--theme-color);white-space:nowrap}
.info-line{flex:1;border-bottom:1.5px solid #aaa;min-width:70px}
.info-line.short{min-width:55px;max-width:75px}
.info-line.tiny{min-width:32px;max-width:46px}

/* INSTRUCTIONS */
.instructions-block{margin-bottom:18px;padding:10px 14px;background:var(--theme-light);border-radius:8px;border-left:4px solid var(--theme-color)}
.instructions-label{font-size:.68em;font-weight:700;color:var(--theme-dark);text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.instructions-text{font-size:.8em;color:#334;line-height:1.6}

/* QUESTIONS CONTAINER */
.questions-container{display:flex;flex-direction:column;gap:var(--q-spacing)}

/* EMPTY STATE */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:50px 20px;text-align:center;opacity:.55}
.empty-icon{font-size:2.8rem;margin-bottom:10px}
.empty-title{font-size:1rem;font-weight:700;color:#666}
.empty-subtitle{font-size:.78rem;color:#999;margin-top:5px}
.empty-actions{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap;justify-content:center}
.empty-btn{padding:7px 14px;border:1.5px dashed rgba(var(--theme-rgb),.4);background:rgba(var(--theme-rgb),.06);color:var(--theme-color);border-radius:7px;font-size:.78rem;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:inherit}
.empty-btn:hover{background:rgba(var(--theme-rgb),.15);border-color:var(--theme-color)}

/* ===== QUESTION BLOCK — NO BORDER ===== */
.question-block{
  background:transparent;
  border:none;
  border-top:2px solid rgba(var(--theme-rgb),.12);
  border-radius:0;
  overflow:visible;
  transition:border-color var(--transition);
  padding-top:4px;
  page-break-inside:avoid;
}
.question-block:first-child{border-top:none}
.question-block:hover{border-color:rgba(var(--theme-rgb),.3)}

/* Toolbar */
.question-toolbar{display:flex;align-items:center;justify-content:space-between;padding:5px 0 6px;margin-bottom:2px}
.q-type-badge{font-size:.63rem;font-weight:700;text-transform:uppercase;letter-spacing:.7px;color:var(--theme-color);background:rgba(var(--theme-rgb),.1);padding:2px 8px;border-radius:100px}
.q-toolbar-actions{display:flex;gap:2px}
.q-tool-btn{padding:3px 7px;border:none;background:transparent;color:#999;border-radius:4px;cursor:pointer;font-size:.75rem;transition:all var(--transition);font-family:inherit}
.q-tool-btn:hover{background:rgba(var(--theme-rgb),.1);color:var(--theme-color)}
.q-tool-btn.danger:hover{background:#fee2e2;color:#dc2626}

/* Question image */
.question-image-area{padding:6px 0 6px;display:flex;flex-direction:column;gap:6px}
/* Resizable image wrapper for questions */
.q-img-resizable{
  resize:both;
  overflow:hidden;
  min-width:100px;
  min-height:60px;
  max-width:100%;
  width:280px;
  border:1.5px dashed rgba(var(--theme-rgb),.25);
  border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.q-img-resizable::after{content:'⤡';position:absolute;bottom:2px;right:4px;font-size:.65rem;color:rgba(var(--theme-rgb),.4);pointer-events:none}
.q-img{width:100%;height:100%;object-fit:contain;display:block;border-radius:6px}
.q-img-remove{align-self:flex-start;padding:3px 8px;background:#fee2e2;border:none;border-radius:5px;color:#dc2626;font-size:.72rem;cursor:pointer;font-family:inherit;transition:all var(--transition)}
.q-img-remove:hover{background:#fecaca}
.img-empty-ph{width:100%;height:100%;min-height:100px;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:#bbb;text-align:center;padding:10px}

/* Question body */
.question-body{display:flex;gap:10px;align-items:flex-start;padding:4px 0 6px}
.question-number-badge{flex-shrink:0;width:24px;height:24px;background:var(--theme-color);color:#fff;border-radius:50%;font-size:.72em;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.no-number-circles .question-number-badge{background:transparent;color:var(--theme-color);font-size:1em;justify-content:flex-start;width:auto;margin-right:4px;}
.question-text{flex:1;font-size:.9em;font-weight:600;color:#1a1a2e;line-height:1.6;min-height:26px;padding:1px 3px}

/* Footer bar (no score) */
.question-footer-bar{display:flex;align-items:center;padding:6px 0 0;gap:8px}
.add-alt-btn{font-size:.72rem;font-weight:600;color:var(--theme-color);background:none;border:none;cursor:pointer;font-family:inherit;padding:3px 7px;border-radius:4px;transition:all var(--transition)}
.add-alt-btn:hover{background:rgba(var(--theme-rgb),.1)}

/* Section close buttons */
.section-close{position:absolute;top:4px;right:6px;background:none;border:none;font-size:.85rem;cursor:pointer;color:#aaa;z-index:2;padding:2px 5px;border-radius:4px;transition:all var(--transition)}
.section-close:hover{color:#e11d48;background:rgba(225,29,72,.08)}
.student-info-bar,.instructions-block{position:relative}

/* Resizable title */
.title-resizable{resize:both;overflow:hidden;min-width:100px;min-height:30px;max-width:100%;width:100%;border:2px dashed transparent;border-radius:6px;transition:border-color var(--transition)}
.title-resizable:hover{border-color:rgba(var(--theme-rgb),.25)}

/* ===== MULTIPLE CHOICE — two column with side image ===== */
.mc-layout{padding:0 0 4px 34px;display:flex;gap:14px;align-items:flex-start}
.mc-alts-col{flex:1;min-width:0}
.mc-side-image{flex-shrink:0;width:160px;display:flex;flex-direction:column;align-items:center;gap:6px}
.mc-side-ph{width:100%;min-height:120px;border:2px dashed rgba(var(--theme-rgb),.25);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;font-size:1.3em;color:rgba(var(--theme-rgb),.5);transition:all var(--transition);text-align:center;background:rgba(var(--theme-rgb),.03)}
.mc-side-ph:hover{border-color:var(--theme-color);background:rgba(var(--theme-rgb),.08)}
.mc-side-ph small{font-size:.62em;color:#aaa}
.mc-img-wrap{width:160px!important;min-width:80px;resize:both;overflow:hidden}
.title-size-controls{display:flex;gap:4px;justify-content:center;margin-top:4px}
.title-size-btn{padding:2px 10px;border:1px solid rgba(var(--theme-rgb),.25);background:rgba(var(--theme-rgb),.05);color:var(--theme-color);border-radius:5px;font-size:.72rem;font-weight:700;cursor:pointer;font-family:inherit;transition:all var(--transition)}
.title-size-btn:hover{background:rgba(var(--theme-rgb),.15);border-color:var(--theme-color)}
.mc-side-img{width:100%;height:100%;object-fit:contain;display:block;border-radius:6px}
.mc-img-rm{font-size:.68rem}
.alternatives-list{display:flex;flex-direction:column;gap:4px}
.alternative-item{display:flex;align-items:center;gap:8px;padding:4px 6px;border-radius:6px;transition:background var(--transition)}
.alternative-item:hover{background:rgba(var(--theme-rgb),.04)}
.alternative-item.correct{background:rgba(16,185,129,.08)}

.alt-circle{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  border:1.5px solid var(--theme-color);
  color:var(--theme-color);
  font-size:.72em;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.alternative-item.correct .alt-circle{background:var(--theme-color);color:#fff}

.alt-text{flex:1;font-size:.86em;color:#2d2d3a;padding:1px 3px;min-height:20px}

/* ===== MULTIPLE CHOICE — 2 columns (No side image) ===== */
.mc-layout-2col{padding:0 0 4px 34px;display:flex;flex-direction:row;gap:10px}
.alternatives-list-2col{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;width:100%}
.alternatives-list-2col .alternative-item{align-items:flex-start}

/* Image inside alt */
.alt-side-img-wrap{display:flex;align-items:center;gap:4px;position:relative}
.alt-img-resizable{
  resize:both;overflow:hidden;
  width:70px;height:55px;
  min-width:40px;min-height:30px;
  border:1px solid #ddd;border-radius:5px;
}
.alt-side-img{width:100%;height:100%;object-fit:contain;display:block}
.alt-img-rm{border:none;background:rgba(0,0,0,.5);color:#fff;border-radius:50%;width:16px;height:16px;font-size:.6rem;cursor:pointer;display:flex;align-items:center;justify-content:center;position:absolute;top:-6px;right:-6px}

.alt-actions{display:flex;gap:2px;opacity:0;transition:opacity var(--transition);flex-shrink:0}
.alternative-item:hover .alt-actions{opacity:1}
.alt-img-btn{padding:2px 5px;border:1px solid #ddd;background:#fff;border-radius:4px;font-size:.68rem;cursor:pointer;font-family:inherit;transition:all var(--transition)}
.alt-img-btn:hover{background:#f0f4ff;border-color:var(--theme-color)}
.alt-correct-btn{padding:2px 6px;border:1px solid #ddd;background:#fff;border-radius:4px;font-size:.7rem;color:#666;cursor:pointer;font-family:inherit;transition:all var(--transition)}
.alt-correct-btn:hover,.alt-correct-btn.active{background:#d1fae5;border-color:#10b981;color:#065f46;font-weight:700}
.alt-remove-btn{padding:2px 5px;border:none;background:transparent;color:#ccc;border-radius:4px;font-size:.7rem;cursor:pointer;font-family:inherit;transition:all var(--transition)}
.alt-remove-btn:hover{background:#fee2e2;color:#dc2626}

/* ===== TRUE / FALSE ===== */
.tf-list{padding:0 0 4px 34px;display:flex;flex-direction:column;gap:4px}
.tf-item{display:flex;align-items:center;gap:8px;padding:4px 6px;border-radius:6px;transition:background var(--transition)}
.tf-item:hover{background:rgba(var(--theme-rgb),.04)}
.tf-item:hover .alt-actions{opacity:1}
.tf-bubbles{display:flex;gap:3px;flex-shrink:0}
.tf-bubble{width:20px;height:20px;border-radius:50%;border:1.5px solid #ccc;display:flex;align-items:center;justify-content:center;font-size:.62em;font-weight:700}
.tf-bubble.v{color:#059669;border-color:#10b981}
.tf-bubble.f{color:#dc2626;border-color:#ef4444}
.tf-text{flex:1;font-size:.85em;color:#2d2d3a;padding:1px 3px}
.tf-answer-select{border:1px solid #ddd;border-radius:4px;padding:2px 4px;font-size:.7em;font-family:inherit;color:#666;background:#fff;cursor:pointer}

/* ===== FILL BLANK / WORD BANK ===== */
.fill-blank-area{padding:4px 0 6px 34px}
.blank-lines{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}
.blank-line-row{display:flex;align-items:flex-end;gap:6px}
.blank-num{font-size:.78em;font-weight:700;color:var(--theme-color);flex-shrink:0}
.blank-underline{flex:1;border-bottom:1.5px solid #aaa;height:1px;margin:8px 0 2px}
.fill-answer-label{font-size:.68em;font-weight:700;color:#888;margin-bottom:3px;display:block}
.fill-answer-text{font-size:.8em;color:#059669;padding:3px 6px;background:rgba(16,185,129,.06);border-radius:4px;min-height:20px}

/* Word bank */
.word-bank-box{margin:6px 0 8px 34px;padding:8px 12px;background:rgba(var(--theme-rgb),.06);border:1.5px dashed rgba(var(--theme-rgb),.25);border-radius:8px}
.word-bank-label{font-size:.65em;font-weight:700;color:var(--theme-dark);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.word-bank-words{font-size:.82em;color:var(--theme-dark);font-weight:500;line-height:1.6}

/* ===== DISCURSIVE ===== */
.discursive-area{padding:4px 0 6px 34px}
.discursive-lines{display:flex;flex-direction:column}
.disc-line{height:30px;border-bottom:1px solid #ddd}
.empty-space-area{transition:height var(--transition);border-left:2px dashed rgba(var(--theme-rgb),.15);margin-left:14px;border-radius:4px;background:rgba(var(--theme-rgb),.01)}

/* ===== MATCHING ===== */
.matching-grid{padding:4px 0 8px 34px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.matching-col-header{font-size:.68em;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--theme-color);background:rgba(var(--theme-rgb),.08);padding:4px 8px;border-radius:4px 4px 0 0;text-align:center;margin-bottom:3px}
.matching-items-a,.matching-items-b{display:flex;flex-direction:column;gap:3px}
.matching-item-a,.matching-item-b{display:flex;align-items:center;gap:6px;padding:6px 8px;border-bottom:1px dashed #e5e7eb;min-height:36px}
.match-num{font-size:.76em;font-weight:700;color:var(--theme-color);flex-shrink:0}
.match-letter{font-size:.8em;font-weight:700;color:#666;flex-shrink:0;letter-spacing:2px}
.match-text{flex:1;font-size:.8em;color:#2d2d3a;padding:1px 3px}

/* ===== ORDERING ===== */
.ordering-list{padding:4px 0 6px 34px;display:flex;flex-direction:column;gap:4px}
.ordering-item{display:flex;align-items:center;gap:8px;padding:4px 6px;border-radius:5px}
.order-box{width:44px;height:26px;border:1.5px solid rgba(var(--theme-rgb),.35);border-radius:5px;font-size:.78em;font-weight:600;color:#bbb;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:rgba(var(--theme-rgb),.04)}
.order-text{flex:1;font-size:.84em;color:#333;padding:1px 3px}

/* ===== TABLE ===== */
.table-container{padding:4px 0 6px;overflow-x:auto}
.q-table{width:100%;border-collapse:collapse;font-size:.8em}
.q-table th{background:var(--theme-color);color:#fff;padding:7px 9px;font-weight:700;text-align:left}
.q-table td{padding:6px 9px;border:1px solid #e5e7eb;color:#333}
.q-table tr:nth-child(even) td{background:rgba(var(--theme-rgb),.04)}
.q-table th,.q-table td{min-width:70px}

/* ===== IMAGE LABEL ===== */
.label-list{padding:6px 0 4px 34px;display:flex;flex-direction:column;gap:6px}
.label-item{display:flex;align-items:center;gap:8px}
.label-num{font-size:.8em;font-weight:700;color:var(--theme-color);flex-shrink:0}

/* ===== CALCULATION ===== */
.calc-area{padding:4px 0 6px 34px}
.calc-problem{font-size:1.05em;font-weight:600;color:#1a1a2e;padding:8px 12px;background:rgba(var(--theme-rgb),.05);border-radius:6px;margin-bottom:8px;border-left:3px solid var(--theme-color)}
.calc-workspace{margin-bottom:8px}
.calc-label{font-size:.68em;font-weight:700;color:#888;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.calc-grid{display:flex;flex-direction:column}
.calc-line{height:30px;border-bottom:1px solid #ddd}
.calc-answer-row{display:flex;align-items:center;gap:10px;margin-top:8px}
.calc-answer-label{font-size:.8em;font-weight:700;color:var(--theme-color);flex-shrink:0}
.calc-answer-box{flex:0 0 180px;height:28px;border:2px solid var(--theme-color);border-radius:5px;background:rgba(var(--theme-rgb),.04)}

/* ===== ANSWER KEY ===== */
.answer-key-section{margin-top:28px;border-top:2px dashed rgba(var(--theme-rgb),.3);padding-top:16px;page-break-before:always}
.answer-key-header{font-weight:800;font-size:.9em;color:var(--theme-color);letter-spacing:1px;margin-bottom:10px}
.answer-key-content{display:flex;flex-direction:column;gap:5px}
.ak-item{display:flex;align-items:center;gap:12px;font-size:.8em;padding:4px 0;border-bottom:1px dashed #eee}
.ak-num{font-weight:700;color:var(--theme-color);flex-shrink:0;width:76px}
.ak-answer{font-weight:600;color:#059669}

/* FOOTER */
.doc-footer{margin-top:28px;padding-top:10px;border-top:1.5px solid #e5e7eb}
.footer-text{font-size:.78em;color:#888;padding:1px 3px}

/* ===== SETTINGS MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);backdrop-filter:blur(6px);z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-box{background:#1c1c2e;border:1px solid rgba(255,255,255,.08);border-radius:14px;width:100%;max-width:500px;box-shadow:0 20px 60px rgba(0,0,0,.6);overflow:hidden;animation:slideUp .22s ease}
@keyframes slideUp{from{transform:translateY(18px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-subtle);font-weight:700;font-size:.95rem}
.modal-close{background:none;border:none;color:var(--text-secondary);font-size:.95rem;cursor:pointer;padding:3px;border-radius:4px;transition:all var(--transition)}
.modal-close:hover{background:rgba(255,255,255,.1);color:#fff}
.modal-body{padding:18px;max-height:72vh;overflow-y:auto;display:flex;flex-direction:column;gap:18px}
.modal-footer{padding:12px 18px;border-top:1px solid var(--border-subtle);display:flex;justify-content:flex-end}
.modal-btn{padding:8px 18px;border:1px solid var(--border-subtle);background:rgba(255,255,255,.06);color:#fff;border-radius:7px;cursor:pointer;font-size:.82rem;font-weight:600;font-family:inherit;transition:all var(--transition)}
.modal-btn:hover{background:rgba(255,255,255,.12)}

.settings-group{display:flex;flex-direction:column;gap:9px}
.settings-label{font-size:.78rem;font-weight:600;color:rgba(255,255,255,.7)}
.color-presets{display:flex;gap:7px;flex-wrap:wrap}
.color-swatch{width:26px;height:26px;border-radius:7px;border:2px solid transparent;cursor:pointer;transition:transform var(--transition),border-color var(--transition);box-shadow:0 2px 6px rgba(0,0,0,.3)}
.color-swatch:hover{transform:scale(1.18);border-color:#fff}
.custom-color-row{display:flex;align-items:center;gap:10px;font-size:.75rem;color:var(--text-secondary)}
input[type="color"]{width:34px;height:26px;border:1px solid rgba(255,255,255,.2);border-radius:5px;cursor:pointer;background:none;padding:0}
.settings-select{padding:7px 9px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:7px;color:#fff;font-size:.8rem;font-family:inherit;cursor:pointer;outline:none}
.settings-select:focus{border-color:var(--theme-color)}
.settings-select option{background:#1c1c2e}
.range-row{display:flex;align-items:center;gap:10px}
input[type="range"]{flex:1;accent-color:var(--theme-color)}
.range-value{font-size:.75rem;color:var(--theme-color);font-weight:700;min-width:34px}
.style-presets{display:flex;gap:7px;flex-wrap:wrap}
.style-preset-btn{padding:6px 13px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:rgba(255,255,255,.6);border-radius:7px;cursor:pointer;font-size:.78rem;font-weight:500;font-family:inherit;transition:all var(--transition)}
.style-preset-btn.active,.style-preset-btn:hover{background:rgba(var(--theme-rgb),.2);border-color:var(--theme-color);color:#fff}

/* ===== ERASER MODE ===== */
.eraser-mode * { cursor: crosshair !important; }
.eraser-hover {
  outline: 2px solid #ef4444 !important;
  outline-offset: 2px !important;
  background-color: rgba(239, 68, 68, 0.1) !important;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.5) !important;
  transition: all 0.1s !important;
}
.eraser-active-btn {
  background: #fee2e2 !important;
  color: #dc2626 !important;
  border-color: #ef4444 !important;
}

/* PRINT */
@media print{
  *{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important}
  body{background:#fff}
  #app{display:block}
  .sidebar,.topbar,.modal-overlay{display:none!important}
  .main-content{margin-left:0}
  .document-wrapper{background:#fff;padding:0;display:block}
  .edu-document{width:100%;min-height:unset;border-radius:0;box-shadow:none;padding:18mm 16mm}
  .question-toolbar{display:none!important}
  .question-footer-bar .add-alt-btn{display:none!important}
  .title-size-controls{display:none!important}
  .alt-correct-btn,.alt-remove-btn,.q-img-remove,.alt-img-btn,.alt-actions{display:none!important}
  .editable:hover,.editable:focus{background:transparent!important;box-shadow:none!important}
  .empty-state{display:none!important}
  .tf-answer-select{display:none!important}
  .empty-space-area{border:none!important;background:transparent!important}
  .mc-side-ph{display:none!important}
  .logo-placeholder{display:none!important}
  .fill-answer-text,.fill-answer-label,.discursive-answer-hint,.calc-problem .editable{color-adjust:exact}
  .header-logo-resizable,.q-img-resizable,.alt-img-resizable{resize:none!important}
  @page{size:A4;margin:0}
}

/* ===== AUTH TOPBAR BUTTON ===== */
.auth-topbar-btn{display:flex;align-items:center;gap:7px;padding:6px 13px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);color:rgba(255,255,255,.85);border-radius:8px;font-size:.8rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all var(--transition)}
.auth-topbar-btn:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.3)}
.auth-topbar-btn.premium-user{background:linear-gradient(135deg,rgba(245,158,11,.15),rgba(217,119,6,.1));border-color:rgba(245,158,11,.4);color:#fbbf24}
.auth-avatar{width:22px;height:22px;background:linear-gradient(135deg,#4f46e5,#7c3aed);border-radius:50%;font-size:.72rem;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}

/* ===== PREMIUM NAV BUTTONS ===== */
.nav-btn-premium{position:relative}
.nav-btn-premium:hover,.nav-btn-premium:focus{background:linear-gradient(135deg,rgba(245,158,11,.25),rgba(217,119,6,.15))!important;color:#fbbf24!important;border-color:rgba(245,158,11,.4)!important}
.crown{font-size:.75rem;margin-left:auto}

/* ===== PREMIUM-LOCKED SETTINGS ===== */
.premium-only-setting.premium-locked{opacity:.55;pointer-events:none;position:relative}
.premium-lock-hint{font-size:.68rem;color:#f59e0b;font-weight:600;margin-left:6px;opacity:.8}

/* ===== AUTH MODAL ===== */
.auth-modal-box{max-width:380px}
.auth-tabs{display:flex;gap:4px}
.auth-tab{padding:5px 16px;border:none;background:transparent;color:rgba(255,255,255,.5);border-radius:6px;cursor:pointer;font-size:.85rem;font-weight:600;font-family:inherit;transition:all var(--transition)}
.auth-tab.active{background:rgba(var(--theme-rgb),.2);color:#fff}
.auth-modal-body{display:flex;flex-direction:column;gap:10px}
.auth-error{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.3);color:#fca5a5;padding:8px 12px;border-radius:7px;font-size:.78rem}
.google-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#fff;border-radius:8px;font-size:.84rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all var(--transition)}
.google-btn:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25)}
.auth-divider{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.25);font-size:.72rem}
.auth-divider::before,.auth-divider::after{content:'';flex:1;height:1px;background:rgba(255,255,255,.08)}
.auth-input{width:100%;padding:9px 12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:.83rem;font-family:inherit;outline:none;transition:all var(--transition)}
.auth-input:focus{border-color:var(--theme-color);background:rgba(255,255,255,.08)}
.auth-input::placeholder{color:rgba(255,255,255,.3)}
.auth-submit-btn{width:100%;padding:10px;background:var(--theme-color);border:none;border-radius:8px;color:#fff;font-size:.88rem;font-weight:700;font-family:inherit;cursor:pointer;transition:all var(--transition)}
.auth-submit-btn:hover{background:var(--theme-dark);transform:translateY(-1px)}

/* ===== PROFILE MODAL ===== */
.profile-modal-box{max-width:360px}
.profile-avatar-row{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.profile-avatar-lg{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#4f46e5,#7c3aed);display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:800;color:#fff;flex-shrink:0}
.profile-name{font-size:1rem;font-weight:700;color:#fff}
.profile-email{font-size:.75rem;color:var(--text-secondary);margin-top:2px}
.profile-plan-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:14px;margin-bottom:14px}
.plan-badge{display:inline-block;padding:3px 10px;border-radius:100px;font-size:.72rem;font-weight:800;letter-spacing:.5px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.5);margin-bottom:6px}
.plan-badge-premium{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}
.plan-desc{font-size:.78rem;color:var(--text-secondary);line-height:1.4}
.plan-expiry{font-size:.72rem;color:#10b981;margin-top:5px;font-weight:600}
.upgrade-btn{width:100%;padding:10px;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:9px;color:#fff;font-size:.88rem;font-weight:700;font-family:inherit;cursor:pointer;margin-bottom:8px;transition:all var(--transition)}
.upgrade-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(245,158,11,.4)}
.auth-signout-btn{width:100%;padding:8px;background:transparent;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:rgba(255,255,255,.5);font-size:.8rem;font-family:inherit;cursor:pointer;transition:all var(--transition)}
.auth-signout-btn:hover{background:rgba(239,68,68,.1);border-color:rgba(239,68,68,.3);color:#fca5a5}

/* ===== UPGRADE MODAL ===== */
.upgrade-modal-box{max-width:440px}
.upgrade-body{display:flex;flex-direction:column;gap:16px}
.upgrade-hero{text-align:center;padding:8px 0}
.upgrade-crown{font-size:2.4rem;margin-bottom:6px}
.upgrade-title{font-size:1.4rem;font-weight:800;color:#fff;margin:0 0 4px}
.upgrade-subtitle{font-size:.83rem;color:var(--text-secondary);margin:0}
.upgrade-features{background:rgba(255,255,255,.03);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:7px}
.upgrade-feature{font-size:.83rem;color:rgba(255,255,255,.75)}
.upgrade-plans{display:flex;gap:10px}
.upgrade-plan-card{flex:1;background:rgba(255,255,255,.04);border:1.5px solid rgba(255,255,255,.1);border-radius:10px;padding:12px;text-align:center;cursor:pointer;transition:all var(--transition)}
.upgrade-plan-card:hover{border-color:rgba(245,158,11,.4);background:rgba(245,158,11,.06)}
.upgrade-plan-card.selected{border-color:#f59e0b;background:rgba(245,158,11,.1)}
.plan-period{font-size:.75rem;font-weight:600;color:rgba(255,255,255,.6);margin-bottom:5px}
.plan-save{background:#10b981;color:#fff;padding:1px 6px;border-radius:100px;font-size:.66rem;margin-left:4px}
.plan-price{font-size:1.25rem;font-weight:800;color:#fff}
.plan-price span{font-size:.72rem;font-weight:400;color:rgba(255,255,255,.5)}
.upgrade-cta-btn{width:100%;padding:13px;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:10px;color:#fff;font-size:.95rem;font-weight:800;font-family:inherit;cursor:pointer;transition:all var(--transition);letter-spacing:.3px}
.upgrade-cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,.45)}
.upgrade-note{text-align:center;font-size:.7rem;color:rgba(255,255,255,.3);margin:0}

/* SCROLLBAR */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:3px}

@media(max-width:680px){
  .sidebar{transform:translateX(-100%); z-index: 9999; width: 80%; max-width: 300px; box-shadow: 4px 0 24px rgba(0,0,0,0.5);}
  .sidebar.open{transform:translateX(0)}
  .mobile-close-btn{display:block!important;}
  .main-content{margin-left:0; width: 100%; max-width: 100vw; overflow-x: hidden;}
  .document-wrapper{padding:10px 4px;}
  .edu-document{padding:16px 12px; min-height: 80vh;}
  .student-info-bar{flex-direction:column; gap: 8px;}
  
  .topbar{padding:0 8px; height:auto; min-height:54px;}
  .topbar-title{display:none;}
  .topbar-actions{gap: 4px; padding: 4px 0;}
  .topbar-btn{padding: 6px; font-size: 0.75rem;}
  .auth-topbar-btn{padding: 6px 10px; font-size: 0.8rem;}

  .modal-box{width:95%; max-height:90vh; padding:15px; overflow-y:auto;}
  .settings-group{padding:10px 0;}
}