/* =====================================================================
   theme.css — طبقة تصميم هادئة ومريحة للعين (تُحمَّل بعد styles.css)
   الهدف: ألوان ورقية دافئة، تباين مريح، عناصر أقل ازدحاماً، ترتيب واضح.
   ===================================================================== */

/* ---------- 1) لوحة الألوان الهادئة ---------- */
:root {
  --bg-body: #f4f2ec;
  --bg-surface: #fffdf8;
  --bg-surface-alt: #f8f5ee;
  --bg-elevated: #f1eee6;
  --text-main: #2b2f36;
  --text-secondary: #4a5260;
  --text-muted: #7c838e;
  --border-color: #e8e3d8;
  --border-strong: #d8d1c3;

  --primary: #3f6f9f;
  --primary-hover: #345d86;
  --primary-light: #d6e2ee;
  --primary-soft: #edf2f7;

  --accent: #3d8b7d;
  --accent-light: #e6f2ef;

  --warning: #b7791f;
  --warning-bg: #fbf5e8;
  --warning-border: #ecd9b0;

  --danger: #b4534b;
  --danger-bg: #fbf0ee;
  --danger-border: #ecc9c4;

  --success: #4a8a5c;
  --success-bg: #eff6f0;
  --success-border: #cde3d2;

  --rule-color: #6f5ea8;
  --rule-bg: #f3f1f9;
  --rule-border: #dcd6ee;

  --code-bg: #2b303b;
  --code-text: #e6e9ef;

  --shadow-sm: 0 1px 2px rgba(60, 50, 30, 0.05);
  --shadow-md: 0 3px 10px rgba(60, 50, 30, 0.07);
  --shadow-lg: 0 10px 28px rgba(60, 50, 30, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;

  --topbar-h: 58px;
  --navtabs-h: 46px;
  --navbar-height: 104px; /* = topbar + navtabs */
  --sidebar-width: 300px;
}

[data-theme="dark"] {
  --bg-body: #1b1f24;
  --bg-surface: #22272e;
  --bg-surface-alt: #2a3038;
  --bg-elevated: #2d333b;
  --text-main: #d5dae0;
  --text-secondary: #b0b8c2;
  --text-muted: #8a939e;
  --border-color: #343b45;
  --border-strong: #444c57;

  --primary: #7aa7d6;
  --primary-hover: #94b9e0;
  --primary-light: #34465a;
  --primary-soft: rgba(122, 167, 214, 0.12);

  --accent: #6fbfae;
  --accent-light: rgba(111, 191, 174, 0.12);

  --warning: #d9a75a;
  --warning-bg: rgba(217, 167, 90, 0.10);
  --warning-border: rgba(217, 167, 90, 0.30);

  --danger: #d98a83;
  --danger-bg: rgba(217, 138, 131, 0.10);
  --danger-border: rgba(217, 138, 131, 0.30);

  --success: #86c294;
  --success-bg: rgba(134, 194, 148, 0.10);
  --success-border: rgba(134, 194, 148, 0.30);

  --rule-color: #b3a6e0;
  --rule-bg: rgba(179, 166, 224, 0.10);
  --rule-border: rgba(179, 166, 224, 0.30);

  --code-bg: #161a1f;
  --code-text: #d5dae0;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 3px 10px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.4);
}

/* ---------- 2) الطباعة: أوزان أخف ومسافات أريح ---------- */
body {
  font-weight: 400;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5 { font-weight: 700; letter-spacing: 0; }

strong, b { font-weight: 700; }

/* تهدئة الأوزان الثقيلة جداً المكتوبة داخل app.js كـ inline style */
[style*="font-weight:900"], [style*="font-weight: 900"] { font-weight: 700 !important; }
[style*="font-weight:800"], [style*="font-weight: 800"] { font-weight: 700 !important; }

::selection { background: #d9e6f2; color: inherit; }
[data-theme="dark"] ::selection { background: #3a5068; }

/* شريط تمرير رفيع وهادئ */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-track { background: transparent; }

:not(pre) > code {
  background: var(--bg-elevated);
  border-color: var(--border-color);
  font-weight: 500;
  color: var(--text-main);
}

/* إزالة قفزات الحركة عند المرور على البطاقات (مزعجة للعين) */
.lesson-index-card:hover,
.page-thumb-card:hover,
.flashcard-item:hover,
.scope-box:hover { transform: none !important; }

/* ---------- 3) الشريط العلوي بصفين ---------- */
.top-navbar {
  height: var(--navbar-height);
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: 0;
  gap: 0;
  background: var(--bg-surface);
  box-shadow: none;
  border-bottom: 1px solid var(--border-color);
}

.topbar-row {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 18px;
}

.navbar-right, .navbar-left { gap: 8px; flex-shrink: 0; }

.brand-logo { gap: 10px; }
.brand-badge {
  background: var(--primary);
  box-shadow: none;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 4px 9px;
  border-radius: 7px;
}
.brand-text { line-height: 1.2; }
.brand-text h1 { font-size: 1rem; font-weight: 700; white-space: nowrap; }
.brand-subtitle { font-size: 0.72rem; white-space: nowrap; }

/* البحث في الوسط */
.global-search-wrap {
  flex: 1;
  max-width: 440px;
  width: auto;
  margin: 0 auto;
}
.global-search-wrap input {
  height: 38px;
  padding: 6px 38px 6px 14px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-alt);
  font-size: 0.86rem;
}
.global-search-wrap input:focus {
  background: var(--bg-surface);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.search-icon { right: 14px; font-size: 0.82rem; opacity: 0.6; }
.search-dropdown {
  left: 50%;
  transform: translateX(-50%);
  width: min(520px, 92vw);
  border-color: var(--border-color);
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-color: transparent;
  background: transparent;
  color: var(--text-secondary);
}
.icon-btn:hover {
  border-color: var(--border-color);
  background: var(--bg-surface-alt);
  color: var(--text-main);
}
.font-btn { width: 34px; height: 34px; font-weight: 700; }

.bilingual-toggle-btn {
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: 99px;
}
.bilingual-toggle-btn:hover { background: var(--accent-light); color: var(--accent); }
.bilingual-toggle-btn.off { border-color: var(--border-strong); color: var(--text-muted); background: transparent; }

/* صف التبويبات: أفقي، قابل للتمرير، بدون ازدحام */
.navtabs-row.main-nav-tabs {
  height: var(--navtabs-h);
  display: flex;
  align-items: stretch;
  gap: 2px;
  padding: 0 14px;
  margin: 0;
  background: transparent;
  border: none;
  border-top: 1px solid var(--border-color);
  border-radius: 0;
  overflow-x: auto;
  overflow-y: hidden;
  flex-wrap: nowrap;
  scrollbar-width: none;
}
.navtabs-row.main-nav-tabs::-webkit-scrollbar { display: none; }

.nav-tab {
  height: 100%;
  padding: 0 14px;
  border-radius: 0;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  background: transparent;
  flex-shrink: 0;
}
.nav-tab:hover { color: var(--text-main); background: transparent; border-bottom-color: var(--border-strong); }
.nav-tab.active {
  background: transparent;
  color: var(--primary);
  border-bottom-color: var(--primary);
  box-shadow: none;
  font-weight: 700;
}

.nav-counter-pill {
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--primary-light);
  font-weight: 700;
  font-size: 0.7rem;
}

/* ---------- 4) الهيكل والمحتوى ---------- */
.main-content { padding: 28px 36px 70px; }
.view-section { max-width: 1040px; }

/* ---------- 5) الفهرس الجانبي الهادئ ---------- */
.sidebar { background: var(--bg-surface); border-left: 1px solid var(--border-color); }

.sidebar-header { padding: 14px 14px 12px; background: var(--bg-surface); }
.sidebar-title-row h2 { font-size: 0.92rem; font-weight: 700; color: var(--text-main); }

.sidebar-filter-row input {
  border-color: var(--border-color);
  background: var(--bg-surface-alt);
  border-radius: 99px;
  padding: 7px 14px;
}
.sidebar-filter-row input:focus { outline: none; border-color: var(--primary); background: var(--bg-surface); }

.sidebar-quick-filters { gap: 4px; }

.chip-btn {
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.74rem;
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-secondary);
  padding: 4px 10px;
}
.chip-btn:hover { border-color: var(--border-strong); color: var(--text-main); }
.chip-btn.active,
.chip-btn.mid-chip.active,
.chip-btn.review-chip.active {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary-light);
}

.chip-mini-btn { border-color: var(--border-color); background: transparent; border-radius: 99px; font-weight: 600; }

.badge-pill {
  font-weight: 600;
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.sidebar-content { padding: 8px 10px 30px; }

.sb-unit-group {
  border: none;
  border-radius: 0;
  background: transparent;
  margin-bottom: 6px;
  overflow: visible;
}
.sb-unit-header {
  background: transparent;
  padding: 10px 8px 6px;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-radius: 6px;
}
.sb-unit-header:hover { background: var(--bg-surface-alt); color: var(--text-main); }
.sb-unit-name { line-height: 1.4; text-align: right; }
.sb-unit-count {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.sb-unit-count.is-mid { color: var(--accent); }

.sb-unit-lessons { border-top: none; }

.sb-lesson-item {
  border-bottom: none;
  border-radius: 8px;
  padding: 7px 8px;
  margin: 1px 0;
  align-items: flex-start;
  gap: 10px;
  border-right: 3px solid transparent;
}
.sb-lesson-item:hover { background: var(--bg-surface-alt); }
.sb-lesson-item.active {
  background: var(--primary-soft);
  border-right: 3px solid var(--primary);
}
.sb-lesson-item.active .sb-lesson-title { color: var(--primary); }

.sb-lesson-num {
  min-width: 24px;
  height: 24px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  margin-top: 1px;
}
.sb-lesson-item.completed .sb-lesson-num {
  background: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success);
}

.sb-lesson-title { font-size: 0.85rem; font-weight: 500; line-height: 1.55; color: var(--text-main); }
.sb-lesson-row-top { margin-top: 1px; }
.sb-page-pill { font-size: 0.7rem; font-weight: 500; color: var(--text-muted); }
.sb-status-icons { align-items: center; gap: 4px; font-size: 0.72rem; }

.mid-badge-mini, .opt-mid-badge-mini, .final-badge-mini {
  font-size: 0.64rem;
  font-weight: 600;
  padding: 0 6px;
  border-radius: 99px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-muted);
}
.opt-mid-badge-mini { color: var(--warning); border-color: var(--warning-border); }
.mid-badge-mini { color: var(--accent); border-color: var(--accent-light); }

.sb-unit-exam-btn {
  margin: 2px 0 8px;
  padding: 7px 10px;
  background: transparent;
  border: 1px dashed var(--border-strong);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  border-radius: 8px;
}
.sb-unit-exam-btn:hover, .sb-unit-exam-btn.active {
  background: var(--primary-soft);
  border-color: var(--primary-light);
  border-style: solid;
  color: var(--primary);
  box-shadow: none;
}
.sb-exam-arrow { opacity: 0.6; font-size: 1rem; }

/* ---------- 6) الأزرار ---------- */
.btn { font-weight: 600; border-radius: 99px; padding: 8px 18px; }
.btn-sm { padding: 5px 13px; font-size: 0.8rem; }
.btn-primary { background: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-outline { background: transparent; border-color: var(--border-strong); color: var(--text-secondary); }
.btn-outline:hover { background: var(--bg-surface-alt); border-color: var(--primary); color: var(--primary); }
.btn-success { background: var(--success); }

/* ---------- 7) بانر مادة الميد الهادئ ---------- */
.midterm-scope-banner {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px 24px 18px;
  box-shadow: var(--shadow-sm);
  background: var(--bg-surface);
}
.calm-banner-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.calm-banner-head h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 2px; color: var(--text-main); }
.calm-banner-sub { font-size: 0.84rem; color: var(--text-muted); }

.scope-grid-cards {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.scope-box {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-alt);
  transition: border-color 0.2s, background 0.2s;
}
.scope-box:hover { border-color: var(--border-strong); box-shadow: none; background: var(--bg-surface); }
.scope-box.core-mid,
[data-theme="dark"] .scope-box.core-mid {
  background: var(--bg-surface-alt);
  border-color: var(--border-color);
  border-right: 3px solid var(--accent);
}
.scope-box.opt-mid,
[data-theme="dark"] .scope-box.opt-mid {
  background: var(--bg-surface-alt);
  border-color: var(--border-color);
  border-right: 3px solid var(--warning);
}
.scope-box-header { font-size: 0.92rem; margin-bottom: 4px; }
.scope-box-header strong { font-weight: 700; }
.scope-range {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1px 9px;
  border-radius: 99px;
  white-space: nowrap;
}
.scope-box p { font-size: 0.86rem; color: var(--text-secondary); margin-bottom: 6px; }
.scope-topics {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 6px 0 2px;
}
.scope-topics li {
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 99px;
  padding: 1px 10px;
  line-height: 1.8;
}
.scope-topics code, .scope-final-note code {
  border: none !important;
  background: transparent !important;
  padding: 0 2px !important;
  font-size: 0.92em !important;
}
.scope-final-note { font-size: 0.78rem !important; color: var(--text-muted) !important; margin-top: 6px; }

.midterm-quick-bar { padding-top: 12px; border-top: 1px solid var(--border-color); }
.quick-bar-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; }
.quick-bar-left .chip-btn { flex: none; }

/* ---------- 8) الفهرس العام ---------- */
.index-toolbar {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 10px 2px;
  margin-bottom: 10px;
}
.index-toolbar h3 { font-size: 1.02rem; font-weight: 700; color: var(--text-secondary); }
.index-toolbar-left select { border-color: var(--border-color); border-radius: 99px; font-weight: 500; padding: 6px 14px; }

.unit-index-card { box-shadow: none; border-color: var(--border-color); margin-bottom: 14px; }
.unit-index-header {
  background: var(--bg-surface);
  padding: 14px 20px;
  flex-wrap: wrap;
  gap: 10px;
}
.unit-index-header:hover { background: var(--bg-surface-alt); }
.unit-index-header h4 { font-size: 1.02rem; font-weight: 700; }
.unit-badge {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 3px 12px;
  border-radius: 99px;
}
.unit-meta-pills { flex-wrap: wrap; gap: 6px; }
.scope-pill.is-mid { color: var(--accent); border-color: var(--accent-light); background: var(--accent-light); }
.scope-pill.is-opt { color: var(--warning); border-color: var(--warning-border); background: var(--warning-bg); }
.scope-pill.is-final { color: var(--text-muted); }

.unit-lessons-grid {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
  padding: 14px 16px 16px;
  background: var(--bg-surface-alt);
  border-top: 1px solid var(--border-color);
}
.lesson-index-card {
  background: var(--bg-surface);
  padding: 16px;
  border-color: var(--border-color);
}
.lesson-index-card:hover { box-shadow: var(--shadow-sm); border-color: var(--border-strong); background: var(--bg-surface); }
.lesson-index-card h5 { font-size: 0.97rem; font-weight: 700; line-height: 1.6; }
.lesson-index-summary { font-size: 0.84rem; color: var(--text-muted); -webkit-line-clamp: 2; }
.lesson-num-badge, .lesson-page-badge { font-weight: 600; border-radius: 99px; font-size: 0.74rem; }
.lesson-page-badge { background: var(--bg-surface-alt); color: var(--text-muted); border: 1px solid var(--border-color); }
.tag-chip { background: transparent; border-color: var(--border-color); color: var(--text-muted); border-radius: 99px; }
.lesson-counts { font-weight: 500; }
.unit-exam-banner-card {
  background: var(--bg-surface);
  border: 1px dashed var(--border-strong);
  margin: 0 16px 16px;
}

/* ---------- 9) صفحة الدرس ---------- */
.lesson-hero-card { box-shadow: none; padding: 26px 28px; }
.lesson-hero-title { font-size: 1.5rem; font-weight: 700; line-height: 1.5; }
.lesson-hero-subtitle { font-size: 0.97rem; color: var(--text-muted); }
.breadcrumb-trail { font-weight: 500; font-size: 0.82rem; }
.lesson-summary-box { border-right-width: 3px; background: var(--primary-soft); line-height: 1.9; }
.key-takeaways-box h4 { font-weight: 700; }

.lesson-subtabs {
  top: var(--navbar-height);
  background: var(--bg-surface);
  backdrop-filter: blur(6px);
  box-shadow: none;
  padding: 6px 10px;
}
.subtab-btn { font-weight: 600; border-radius: 99px; padding: 6px 14px; font-size: 0.85rem; }
.subtab-btn.active { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-light); }

.lesson-block-header { border-bottom: 1px solid var(--border-color); margin: 34px 0 16px; }
.lesson-block-header h3 { font-size: 1.2rem; font-weight: 700; }

.explain-section-card { box-shadow: none; padding: 24px 28px; }
.explain-section-header h4 { font-size: 1.08rem; font-weight: 700; }
.section-index-badge {
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 99px;
  width: 28px;
  height: 28px;
  font-weight: 700;
  font-size: 0.82rem;
}
.rich-content p { font-size: 1rem; line-height: 1.95; }
.rich-content li { margin-bottom: 8px; line-height: 1.9; }
.rich-content h5, .rich-content h4 { font-weight: 700; }

.study-table th, .rich-content table th { font-weight: 700; border-bottom-width: 1px; }
.table-wrap { border-color: var(--border-color); }

.callout { border-right-width: 3px !important; line-height: 1.9; }
.formula-box { border: 1px solid var(--primary-light); border-right: 3px solid var(--primary); font-weight: 600; background: var(--primary-soft); }
.asm-code, pre.asm-code { border-color: transparent; line-height: 1.75; }

.example-card { box-shadow: none; border-top: 1px solid var(--border-color); border-right: 3px solid var(--accent); }
.example-badge { background: var(--accent-light); color: var(--accent); font-weight: 700; border-radius: 99px; }
.example-header h4 { font-size: 1.04rem; font-weight: 700; }
.example-solution-label { font-weight: 700; }

.qa-card, .quiz-card { box-shadow: none; }
.qa-question-text { font-weight: 600; }
.qa-badge { font-weight: 600; border-radius: 99px; }
.qa-toggle-btn { font-weight: 600; border-radius: 99px; }
.quiz-q-title { font-weight: 600; line-height: 1.75; }
.quiz-opt-btn { font-weight: 500; border-color: var(--border-color); background: var(--bg-surface); }
.quiz-opt-btn.correct { font-weight: 700; }
.quiz-explanation { border-right-width: 3px; }

.lesson-bottom-nav { box-shadow: none; }
.section-header-card, .lab-card, .exambank-controls, .hub-item-card, .unit-selector-bar { box-shadow: none; }
.lab-card h3 { font-weight: 700; }

/* ---------- 10) الامتحانات والمساعد العربي ---------- */
.unit-selector-btn { font-weight: 600; border-radius: 99px; background: transparent; border-color: var(--border-color); }
.unit-selector-btn.active { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-light); box-shadow: none; }

.exam-paper-header {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-right: 3px solid var(--primary);
  box-shadow: none;
}
.exam-paper-header h3 { color: var(--text-main); font-weight: 700; font-size: 1.25rem; }
.exam-paper-header .en-subtitle { color: var(--primary); }
.exam-paper-header * { color: inherit; }
.exam-paper-header .badge-pill { color: var(--text-secondary); }

.en-question-box {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--primary);
  color: var(--text-main);
  font-weight: 600;
  line-height: 1.8;
}
[data-theme="dark"] .en-question-box {
  background: var(--bg-surface-alt);
  border-color: var(--border-color);
  border-left-color: var(--primary);
  color: var(--text-main);
}

.ar-assist-box {
  background: var(--accent-light);
  border: 1px solid transparent;
  border-right: 3px solid var(--accent);
  line-height: 1.9;
}
.show-single-ar-btn { font-weight: 600; border-radius: 99px; background: transparent; }
.keyword-clue-chip { border-color: var(--border-color); border-radius: 99px; font-weight: 600; }

.bilingual-bridge-card { border: 1px solid var(--border-color); border-top: 3px solid var(--primary); box-shadow: none; }
.bilingual-bridge-header { border-bottom-width: 1px; }
.bilingual-summary-item { border-color: var(--border-color); }
.bilingual-summary-en { border-left-width: 2px; font-weight: 600; }

.trace-problem-card, .coding-problem-card { box-shadow: none; border-color: var(--border-color); border-top: 3px solid var(--primary); }
.trace-input { border-width: 1px; }
.decoder-card { box-shadow: none; border-top-width: 3px; }
.decoder-en-phrase { font-weight: 600; }

/* ---------- 11) الملاحظات والعلامات ---------- */
.point-tool-btn { font-weight: 600; border-radius: 99px; background: transparent; border-color: var(--border-color); color: var(--text-muted); }
.point-tool-btn.active-review { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning); }
.point-tool-btn.active-bookmark { background: var(--primary-soft); border-color: var(--primary-light); color: var(--primary); }
.point-tool-btn.active-note { background: #fbf6e3; border-color: #e9dcae; color: #8a6d1f; }
[data-theme="dark"] .point-tool-btn.active-note { background: rgba(217, 190, 110, 0.12); border-color: rgba(217, 190, 110, 0.3); color: #e2c879; }

.needs-review-card { border: 1px solid var(--warning-border) !important; border-right: 3px solid var(--warning) !important; box-shadow: none !important; }
.bookmarked-card { border-right: 3px solid var(--primary) !important; }

.my-sticky-note { background: #fbf6e3; border: 1px solid #ece2bd; border-right: 3px solid #d4b45a; color: #5f4b14; }

.selection-popup { background: #2f343c; border-color: #3d434c; border-radius: 99px; padding: 5px 6px; }
.selection-popup button { border-radius: 99px; font-weight: 600; }
.selection-popup button:hover { background: rgba(255, 255, 255, 0.18); }

.ar-toast-banner { background: #2f343c; font-weight: 600; border-right-width: 3px; }

.hub-stat-box { border-color: var(--border-color); }
.hub-stat-num { font-weight: 700; }
.flashcard-item { border-width: 1px; border-color: var(--border-color); }
.flashcard-item:hover { box-shadow: var(--shadow-sm); }
.flashcard-front { font-weight: 700; }

.modal-overlay { background: rgba(30, 32, 36, 0.55); backdrop-filter: blur(3px); }
.modal-card { border: 1px solid var(--border-color); }
.modal-header { background: var(--bg-surface); }

/* ---------- 12) التجاوب مع الشاشات ---------- */
@media (max-width: 1180px) {
  .main-content { padding: 24px 24px 60px; }
}

@media (max-width: 1080px) {
  .sidebar { box-shadow: var(--shadow-lg); }
  .main-content { margin-right: 0; padding: 20px 16px 50px; }
}

@media (max-width: 860px) {
  .bilingual-toggle-btn { padding: 6px 10px; font-size: 0.74rem; }
  .font-size-controls { display: none; }
}

@media (max-width: 760px) {
  .brand-subtitle { display: none; }
  .brand-text h1 { font-size: 0.92rem; }
  .topbar-row { gap: 8px; padding: 0 10px; }
  .global-search-wrap input { font-size: 0.8rem; }
  .scope-grid-cards { grid-template-columns: 1fr; }
  .unit-lessons-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .brand-text { display: none; }
  .bilingual-toggle-btn span { font-size: 0.72rem; }
  .nav-tab { padding: 0 10px; font-size: 0.82rem; }
}

/* نص كان أبيض فوق خلفية داكنة داخل ترويسة الامتحان — صار بخلفية فاتحة */
.exam-paper-header [style*="color:#e2e8f0"] { color: var(--text-secondary) !important; }

/* ---------- 13) الفهرس الجانبي: عنوان الوحدة مميّز + الدروس داخل بوكسات ---------- */
.sb-unit-group { margin-bottom: 14px; }

.sb-unit-header {
  background: var(--primary);
  color: #ffffff;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 8px;
  align-items: center;
}
.sb-unit-header:hover { background: var(--primary-hover); color: #ffffff; }
.sb-unit-name { color: #ffffff; line-height: 1.5; }

.sb-unit-meta { display: inline-flex; align-items: center; gap: 5px; flex-shrink: 0; }
.sb-unit-mid,
.sb-unit-count {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 99px;
  white-space: nowrap;
  line-height: 1.7;
}
.sb-unit-mid { background: #ffffff; color: var(--primary); }
.sb-unit-count { background: rgba(255, 255, 255, 0.22); color: #ffffff; }

[data-theme="dark"] .sb-unit-header { background: #34465a; color: #e6edf5; }
[data-theme="dark"] .sb-unit-header:hover { background: #3d5268; }
[data-theme="dark"] .sb-unit-name { color: #e6edf5; }
[data-theme="dark"] .sb-unit-mid { background: #e6edf5; color: #34465a; }

.sb-unit-lessons {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0 4px 0 0;
  border-right: 2px solid var(--primary-light);
  margin-right: 8px;
}
.sb-unit-lessons.hidden { display: none !important; }

.sb-lesson-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 9px 10px;
  margin: 0 6px 0 0;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, background 0.15s;
}
.sb-lesson-item:hover { background: var(--bg-surface-alt); border-color: var(--border-strong); }
.sb-lesson-item.active {
  background: var(--primary-soft);
  border: 1px solid var(--primary);
  border-right: 4px solid var(--primary);
}
.sb-lesson-item.completed .sb-lesson-title { color: var(--text-secondary); }

.sb-page-pill bdi { font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; unicode-bidi: isolate; }

.sb-unit-exam-btn { margin: 2px 6px 0 0; background: var(--bg-surface-alt); }

/* أيقونة فتح وإغلاق الوحدة في القائمة الجانبية */
.sb-unit-chevron {
  font-size: 0.64rem;
  display: inline-block;
  opacity: 0.88;
  margin-left: 2px;
}

.sb-unit-header.is-closed {
  margin-bottom: 4px;
}

/* ---------- 14) بطاقة الترجمة السريعة وشريط التظليل الذكي ---------- */
.selection-popup {
  position: fixed;
  z-index: 3000;
  background: #0f172a;
  color: #ffffff;
  padding: 5px 8px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid #334155;
  width: max-content;
  max-width: 95vw;
  flex-wrap: nowrap;
  user-select: none;
}

.popup-btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
  color: #ffffff !important;
  font-weight: 800 !important;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.28) !important;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px !important;
  font-size: 0.84rem !important;
  border-radius: 8px !important;
  white-space: nowrap;
  transition: transform 0.12s, box-shadow 0.12s;
}

.popup-btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.45);
}

/* سهم بارز يشير مباشرة من زر الترجمة إلى الكلمة المظللة */
.popup-btn-primary::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #1d4ed8;
  pointer-events: none;
}

.selection-popup.is-below .popup-btn-primary::after {
  bottom: auto;
  top: -6px;
  border-top: none;
  border-bottom: 6px solid #2563eb;
}

.quick-translate-bubble {
  position: fixed;
  z-index: 3100;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--accent);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 12px 16px;
  width: min(340px, 92vw);
  max-width: 360px;
  font-family: inherit;
  color: var(--text-main);
  animation: qtFadeIn 0.15s ease-out;
}

@keyframes qtFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.qt-bubble-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
}

.qt-word-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qt-word-en {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary);
}

.qt-speak-icon-btn {
  background: var(--primary-soft);
  border: 1px solid var(--primary-light);
  color: var(--primary);
  border-radius: 99px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: transform 0.1s;
}
.qt-speak-icon-btn:hover {
  transform: scale(1.1);
  background: var(--primary);
  color: #fff;
}

.qt-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 2px 6px;
  border-radius: 4px;
}
.qt-close-btn:hover {
  color: var(--text-main);
  background: var(--bg-surface-alt);
}

.qt-meaning-ar {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 6px;
}

.qt-context-note {
  font-size: 0.82rem;
  color: var(--text-secondary);
  background: var(--bg-surface-alt);
  border-right: 3px solid var(--accent);
  padding: 6px 10px;
  border-radius: 6px;
  margin-bottom: 10px;
  line-height: 1.55;
}

.qt-bubble-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.qt-bubble-actions .btn {
  flex: 1;
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  direction: rtl;
  min-height: 32px;
}

.qt-loading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.88rem;
}

/* ---------- 15) أداة التقاط الشاشة المباشرة (Direct Snipping Toolbar) ---------- */
.snip-direct-toolbar {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: 9px;
  padding: 2px 3px;
  gap: 3px;
}

.snip-direct-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  height: 32px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.77rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.14s ease;
}

.snip-direct-btn:hover {
  background: var(--bg-surface);
  color: var(--primary);
  border-color: var(--border-strong);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.snip-direct-btn.is-active,
.snip-direct-btn:active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.snip-direct-btn svg {
  flex-shrink: 0;
  stroke: currentColor;
}

.snip-btn-smart {
  color: var(--primary);
}
.snip-btn-smart:hover {
  background: var(--primary-soft);
  border-color: var(--primary-light);
}

@media (max-width: 860px) {
  .snip-direct-btn .snip-btn-label {
    display: none;
  }
  .snip-direct-btn {
    padding: 0;
    width: 32px;
    justify-content: center;
  }
}

/* شاشة التظليل والالتقاط (Overlay) */
.screenshot-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: auto;
  user-select: none;
}

.screenshot-overlay.smart-mode {
  pointer-events: none !important;
  background: transparent !important;
}

.screenshot-overlay.area-mode {
  cursor: crosshair;
  background: rgba(15, 23, 42, 0.42);
}

/* مؤشر الماوس أثناء اللقطة الذكية */
body.snip-smart-active,
body.snip-smart-active * {
  cursor: crosshair !important;
}

/* شريط التوجيه العلوي أثناء التقاط الشاشة */
.screenshot-instruction-banner {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 99998;
  background: #1e293b;
  color: #ffffff;
  padding: 8px 18px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.85rem;
  font-weight: 600;
  pointer-events: auto !important;
  animation: qtFadeIn 0.2s ease-out;
}

.ss-banner-content {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.ss-banner-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
}

.ss-banner-cancel-btn {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
  border: none;
  border-radius: 99px;
  padding: 3px 12px;
  font-size: 0.78rem;
  cursor: pointer;
  font-weight: 700;
  transition: background 0.15s;
}
.ss-banner-cancel-btn:hover {
  background: #ef4444;
}

/* مربع التحديد الذكي حول العنصر المختار */
.smart-snip-box {
  position: fixed;
  pointer-events: none !important;
  border: 3px solid #2563eb;
  border-radius: 12px;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.3), 0 8px 30px rgba(0, 0, 0, 0.35);
  background: rgba(37, 99, 235, 0.08);
  transition: all 0.06s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 99999;
}

.smart-snip-badge {
  position: absolute;
  top: -14px;
  right: 14px;
  background: #2563eb;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 99px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  white-space: nowrap;
  pointer-events: none !important;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* مستطيل السحب الحر (Area Selection) */
.area-selection-rect {
  position: fixed;
  border: 2px dashed #0284c7;
  background: rgba(2, 132, 199, 0.18);
  pointer-events: none;
  z-index: 9060;
  box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.42);
}

.area-selection-dim {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  color: #ffffff;
  font-size: 0.72rem;
  font-family: 'JetBrains Mono', monospace;
  padding: 1px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

/* نافذة معاينة ونسخ اللقطة */
.screenshot-modal-card {
  max-width: 820px;
  width: 95vw;
}

.ss-preview-container {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  max-height: 52vh;
  overflow: auto;
}

.ss-preview-img {
  max-width: 100%;
  max-height: 48vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: var(--shadow-md);
  background: #ffffff;
}

.ss-copy-success-alert {
  margin-top: 12px;
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
  animation: qtFadeIn 0.2s ease-out;
}
[data-theme="dark"] .ss-copy-success-alert {
  background: #14532d;
  color: #bbf7d0;
  border-color: #22c55e;
}

/* ---------- 16) شاشة القفل والمصادقة برمز المرور (Lock Screen) ---------- */
html:not(.is-authenticated) .top-navbar,
html:not(.is-authenticated) .main-content,
html:not(.is-authenticated) .sidebar-nav,
html:not(.is-authenticated) .selection-popup,
html:not(.is-authenticated) .quick-translate-bubble,
html:not(.is-authenticated) #screenshotOverlay,
html:not(.is-authenticated) #screenshotInstructionBanner,
html:not(.is-authenticated) #smartSnipBox,
html:not(.is-authenticated) #areaSelectionRect {
  display: none !important;
}

html:not(.is-authenticated) body {
  overflow: hidden !important;
  background: #090d16 !important;
}

html.is-authenticated .auth-lock-overlay {
  display: none !important;
}

.auth-lock-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999999;
  background: radial-gradient(circle at 50% 30%, #172554 0%, #090d16 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  user-select: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.auth-lock-overlay.auth-unlocking {
  opacity: 0;
  pointer-events: none;
  transform: scale(1.02);
}

.auth-lock-card {
  width: 100%;
  max-width: 440px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(59, 130, 246, 0.28);
  border-radius: 24px;
  padding: 36px 32px 30px;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 50px rgba(37, 99, 235, 0.18);
  animation: authCardIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.auth-lock-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa, #2563eb);
}

@keyframes authCardIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-card-shake {
  animation: authShake 0.45s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes authShake {
  10%, 90% { transform: translate3d(-3px, 0, 0); }
  20%, 80% { transform: translate3d(5px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

.auth-shield-icon-wrap {
  position: relative;
  width: 76px;
  height: 76px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-shield-pulse {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.2);
  animation: authPulse 2s infinite ease-out;
}

@keyframes authPulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 0.3; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.auth-shield-icon {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, #1e3a8a, #1d4ed8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.45);
}

.auth-brand-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #60a5fa;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 99px;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.auth-title {
  color: #ffffff;
  font-size: 1.45rem;
  font-weight: 800;
  margin: 0 0 6px;
  letter-spacing: -0.3px;
}

.auth-subtitle {
  color: #94a3b8;
  font-size: 0.86rem;
  line-height: 1.5;
  margin: 0 0 24px;
}

.auth-input-group {
  text-align: right;
  margin-bottom: 14px;
}

.auth-input-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: #cbd5e1;
  margin-bottom: 6px;
}

.auth-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-password-input {
  width: 100%;
  height: 48px;
  background: rgba(15, 23, 42, 0.95);
  border: 2px solid #334155;
  border-radius: 12px;
  padding: 0 46px 0 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-align: center;
  color: #ffffff;
  direction: ltr;
  transition: all 0.15s ease;
  box-sizing: border-box;
}

.auth-password-input:focus {
  outline: none;
  border-color: #3b82f6;
  background: rgba(2, 6, 23, 0.98);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25);
}

.auth-eye-btn {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: #64748b;
  cursor: pointer;
  padding: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color 0.15s;
}

.auth-eye-btn:hover {
  color: #94a3b8;
}

.auth-error-msg {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(239, 68, 68, 0.14);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 10px;
  margin-bottom: 14px;
  animation: qtFadeIn 0.15s ease-out;
}

.auth-options-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 20px;
}

.auth-remember-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #94a3b8;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.auth-remember-label input[type="checkbox"] {
  accent-color: #2563eb;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.auth-submit-btn {
  width: 100%;
  height: 48px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.96rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
  transition: all 0.15s ease;
}

.auth-submit-btn:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.55);
  transform: translateY(-1px);
}

.auth-submit-btn:active {
  transform: translateY(1px);
}

.auth-footer-note {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #64748b;
  font-size: 0.74rem;
  font-weight: 600;
}

.lock-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
}