/* =========================================================
   CertTracker — Design System
   ========================================================= */

:root {
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-accent: #06b6d4;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;

  --bg: #f4f5fb;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-nested: #f7f8fc;
  --bg-input: #ffffff;
  --border: rgba(15, 17, 23, 0.1);
  --border-strong: rgba(15, 17, 23, 0.18);
  --text: #171923;
  --text-muted: #6b7280;
  --shadow: 0 1px 3px rgba(15, 17, 23, 0.06), 0 1px 2px rgba(15,17,23,0.08);
  --shadow-lg: 0 10px 30px rgba(15, 17, 23, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
}

:root:not([data-theme="light"]) {
  --bg: #0b0d14;
  --bg-elevated: #12141f;
  --bg-card: #161925;
  --bg-nested: #10121b;
  --bg-input: #0f111a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e7e9f2;
  --text-muted: #8b93a7;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 45px rgba(0,0,0,0.45);
}

:root[data-theme="dark"] {
  --bg: #0b0d14;
  --bg-elevated: #12141f;
  --bg-card: #161925;
  --bg-nested: #10121b;
  --bg-input: #0f111a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e7e9f2;
  --text-muted: #8b93a7;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 45px rgba(0,0,0,0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3, h4, h5 { margin: 0 0 4px; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 8px; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
select, option { color-scheme: light dark; }

/* ============ Utility classes ============ */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-accent { color: var(--color-accent); }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-center { text-align: center; }
.text-nowrap { white-space: nowrap; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; letter-spacing: 0.04em; }
.d-block { display: block; }
.w-100 { width: 100%; }
.w-30 { width: 30%; }
.w-20 { width: 20%; }
.flex-1 { flex: 1; }
.mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 16px; } .mt-4 { margin-top: 24px; }
.mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 16px; }
.ml-2 { margin-left: 8px; }
.mx-1 { margin-left: 4px; margin-right: 4px; }
.mx-2 { margin-left: 8px; margin-right: 8px; }
.p-3 { padding: 16px; }
.p-4 { padding: 24px; }
.border-danger { border-color: rgba(239, 68, 68, 0.35) !important; }

/* ============ Header ============ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; }
.brand-icon { font-size: 1.4rem; }
.brand-name { background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }

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

.streak-pill {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg-nested);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}
.streak-pill.streak-fire {
  background: linear-gradient(90deg, rgba(245,158,11,0.18), rgba(239,68,68,0.18));
  color: var(--color-warning);
  border-color: rgba(245,158,11,0.4);
}

.btn-header { white-space: nowrap; }

.user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-nested);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
}
.user-btn:hover { border-color: var(--color-primary); }
.user-avatar { font-size: 1.1rem; }

/* ============ Nav Tabs ============ */
.main-nav {
  display: flex;
  gap: 4px;
  padding: 10px 24px 0;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.nav-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.nav-tab:hover { color: var(--text); background: var(--bg-nested); }
.nav-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-icon { font-size: 1rem; }

/* ============ Main / Layout ============ */
.app-main { max-width: 1280px; margin: 0 auto; padding: 24px; }
.tab-view { display: none; }
#view-dashboard { display: block; }

.section-heading-row { margin: 24px 0 12px; }
.view-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

/* ============ Cards ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-nested {
  background: var(--bg-nested);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.card-header-flex {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.empty-state { text-align: center; padding: 40px 20px; }
.empty-icon { font-size: 2.5rem; margin-bottom: 10px; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.05s ease, opacity 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark)); color: #fff; }
.btn-primary:hover { opacity: 0.92; }
.btn-secondary { background: var(--bg-nested); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--color-primary); }
.btn-success { background: var(--color-success); color: #fff; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-outline-danger { background: transparent; color: var(--color-danger); border-color: rgba(239,68,68,0.4); }
.btn-outline-danger:hover { background: rgba(239,68,68,0.1); }
.btn-outline-light { background: var(--bg-elevated); color: var(--text); border-color: var(--border-strong); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-nested);
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
}
.btn-icon:hover { border-color: var(--color-primary); }
.btn-icon.btn-sm { width: 30px; height: 30px; font-size: 0.85rem; }
.btn-close {
  border: none;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
}
.btn-close:hover { color: var(--text); }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ============ Badges ============ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: var(--bg-nested);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.badge-primary { background: rgba(99,102,241,0.15); color: #a5a8ff; border-color: rgba(99,102,241,0.35); }
.badge-secondary { background: var(--bg-nested); color: var(--text-muted); }
.badge-success { background: rgba(16,185,129,0.15); color: var(--color-success); border-color: rgba(16,185,129,0.35); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--color-danger); border-color: rgba(239,68,68,0.35); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--color-warning); border-color: rgba(245,158,11,0.35); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--color-info); border-color: rgba(59,130,246,0.35); }
.badge-accent { background: rgba(6,182,212,0.15); color: var(--color-accent); border-color: rgba(6,182,212,0.35); }
.badge-points { background: rgba(99,102,241,0.15); color: #a5a8ff; }

/* ============ Forms ============ */
.form-group { margin-bottom: 14px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }
.form-label { display: block; margin-bottom: 6px; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); }
.label-row-flex { display: flex; align-items: center; justify-content: space-between; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-input);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
}
.form-input.form-input-sm { padding: 6px 10px; font-size: 0.82rem; }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
}
.form-textarea { resize: vertical; min-height: 70px; }
.auth-link { color: var(--color-primary); font-weight: 600; }
.auth-switch-text { color: var(--text-muted); }

/* ============ Modals ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 10, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal-content {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-sm { max-width: 420px; }
.modal-md { max-width: 620px; }
.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-body { padding: 20px 24px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ============ Dropdown ============ */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 210px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 30;
  overflow: hidden;
}
.dropdown-menu.show { display: block; }
.dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}
.dropdown-item:hover { background: var(--bg-nested); }

/* ============ Progress ============ */
.progress-bar-bg {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: var(--bg-nested);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width 0.3s ease;
}
.progress-labels { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 0.85rem; }

/* ============ Dashboard: reminders & KPIs ============ */
.dashboard-reminders { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.reminder-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.reminder-urgent { border-color: rgba(239,68,68,0.4); background: rgba(239,68,68,0.08); }
.reminder-warning { border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.08); }
.reminder-info { border-color: rgba(59,130,246,0.4); background: rgba(59,130,246,0.08); }
.reminder-icon { font-size: 1.4rem; }
.reminder-body { flex: 1; }
.reminder-body p { margin: 2px 0 0; font-size: 0.85rem; color: var(--text-muted); }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 8px;
}
.kpi-card { display: flex; align-items: center; gap: 14px; }
.kpi-icon-wrap {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.bg-primary-soft { background: rgba(99,102,241,0.15); }
.bg-accent-soft { background: rgba(6,182,212,0.15); }
.bg-warning-soft { background: rgba(245,158,11,0.15); }
.bg-success-soft { background: rgba(16,185,129,0.15); }
.kpi-info { display: flex; flex-direction: column; }
.kpi-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; }
.kpi-value { margin: 2px 0; font-size: 1.6rem; }
.kpi-subtext { font-size: 0.78rem; }

.benchmark-grid { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.benchmark-col { flex: 1; min-width: 160px; }
.benchmark-divider { color: var(--text-muted); font-weight: 700; }
.benchmark-stat { font-size: 1.4rem; font-weight: 800; margin: 4px 0; }
.suggested-resources-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.suggested-item-link {
  display: block;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-nested);
  color: var(--text);
}
.suggested-item-link:hover { border-color: var(--color-accent); text-decoration: none; }
.suggested-item-title { font-weight: 700; margin: 6px 0 4px; }

/* ============ Goals ============ */
.goals-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; }
.goal-card { display: flex; flex-direction: column; gap: 14px; }
.goal-card-passed { opacity: 0.85; }
.goal-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.goal-cert-badge { display: flex; align-items: center; gap: 10px; }
.cert-icon { font-size: 1.8rem; }
.goal-title { font-size: 1.05rem; }
.cert-code { font-size: 0.78rem; color: var(--text-muted); }
.goal-badges-group { display: flex; align-items: center; gap: 8px; }
.goal-metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.metric-mini-box {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px;
  background: var(--bg-nested);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.metric-label { font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.metric-val { font-weight: 700; }
.metric-sub { font-size: 0.7rem; color: var(--text-muted); }
.goal-notes-preview { font-size: 0.85rem; color: var(--text-muted); background: var(--bg-nested); padding: 10px; border-radius: var(--radius-sm); }
.goal-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 12px; }
.goal-resources-summary { font-size: 0.8rem; color: var(--text-muted); }
.goal-actions-btns { display: flex; gap: 8px; }

/* ============ Sessions ============ */
.filter-row { display: flex; gap: 12px; flex-wrap: wrap; }
.filter-group { flex: 1; min-width: 150px; }
.filter-label { display: block; margin-bottom: 6px; font-size: 0.75rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; }
.filter-actions-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.summary-stats { font-size: 0.85rem; color: var(--text-muted); }
.table-responsive { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.87rem; }
.data-table th {
  text-align: left;
  padding: 10px 12px;
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--border-strong);
}
.data-table td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table tr:last-child td { border-bottom: none; }
.topic-title { margin-bottom: 2px; }
.domain-pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--bg-nested);
  border: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.method-tag { font-size: 0.8rem; color: var(--text-muted); }

/* ============ Quiz ============ */
.quiz-launcher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 860px) { .quiz-launcher-grid { grid-template-columns: 1fr; } }
.quiz-badge-icon { font-size: 2rem; margin-bottom: 6px; }
.quiz-history-list { display: flex; flex-direction: column; gap: 8px; max-height: 320px; overflow-y: auto; }
.quiz-history-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg-nested);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.qh-score-wrap { text-align: right; }
.quiz-top-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.domain-pill.ml-2 { margin-left: 8px; }
.quiz-question-text { font-size: 1.15rem; }
.quiz-options-list { display: flex; flex-direction: column; gap: 10px; }
.quiz-option-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-nested);
  cursor: pointer;
}
.quiz-option-item:hover { border-color: var(--color-primary); }
.quiz-option-item.selected { border-color: var(--color-primary); background: rgba(99,102,241,0.12); }
.option-radio-marker {
  width: 28px; height: 28px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 700; flex-shrink: 0;
}
.quiz-footer-nav { display: flex; align-items: center; justify-content: space-between; }
.results-header-box { padding-bottom: 10px; }
.results-emoji { font-size: 2.6rem; }
.score-circle-badge {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  width: 140px; height: 140px;
  border-radius: 999px;
  border: 6px solid var(--border-strong);
}
.score-circle-badge.score-pass { border-color: var(--color-success); }
.score-circle-badge.score-fail { border-color: var(--color-warning); }
.score-num { font-size: 1.8rem; font-weight: 800; }
.score-sub { font-size: 0.75rem; color: var(--text-muted); }
.review-item { margin-bottom: 12px; }
.review-correct { border-color: rgba(16,185,129,0.35); }
.review-incorrect { border-color: rgba(239,68,68,0.35); }
.review-status-row { display: flex; align-items: center; justify-content: space-between; }
.review-answers-box, .review-explanation-box { font-size: 0.85rem; background: var(--bg-nested); padding: 10px; border-radius: var(--radius-sm); }

/* ============ Calendar ============ */
.calendar-card { padding: 20px; }
.calendar-header-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; flex-wrap: wrap; gap: 10px; }
.cal-nav-group { display: flex; gap: 6px; }
.cal-month-title { font-size: 1.1rem; }
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  text-align: center;
}
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-cell {
  min-height: 88px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-nested);
  padding: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cal-cell:hover { border-color: var(--color-primary); }
.cal-cell-muted { opacity: 0.35; cursor: default; background: transparent; }
.cal-cell-today { border-color: var(--color-accent); }
.cal-cell-active { background: rgba(99,102,241,0.08); }
.cal-day-num { font-size: 0.8rem; color: var(--text-muted); }
.today-pill {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #04222a;
  font-weight: 700;
}
.cal-cell-content { display: flex; flex-direction: column; gap: 3px; }
.cal-badge-session, .cal-badge-exam {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-badge-exam { color: var(--color-warning); border-color: rgba(245,158,11,0.4); }

/* ============ Sprint Hub ============ */
.sprint-header-card { margin-bottom: 18px; }
.sprint-header-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.sprint-title { font-size: 1.3rem; }
.sprint-subtitle { color: var(--text-muted); font-size: 0.88rem; }
.sprint-stats-group { display: flex; gap: 12px; }
.sprint-stat-box {
  display: flex; flex-direction: column; align-items: center;
  padding: 10px 16px;
  background: var(--bg-nested);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  min-width: 90px;
}
.stat-label { font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; }
.stat-value { font-size: 1.1rem; font-weight: 800; }
.sprint-nav-tabs { display: flex; gap: 6px; margin-top: 18px; border-top: 1px solid var(--border); padding-top: 14px; flex-wrap: wrap; }
.sprint-subtab {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-nested);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
}
.sprint-subtab.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.sprint-view-section { margin-top: 4px; }

.kanban-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .kanban-grid { grid-template-columns: 1fr; } }
.kanban-column { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; }
.kanban-col-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.col-title { font-weight: 700; font-size: 0.9rem; }
.col-count { font-size: 0.72rem; color: var(--text-muted); }
.kanban-col-body { display: flex; flex-direction: column; gap: 10px; min-height: 60px; }
.kanban-card {
  background: var(--bg-nested);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.kanban-empty { text-align: center; color: var(--text-muted); font-size: 0.8rem; padding: 16px 0; }
.story-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.story-id { font-size: 0.72rem; font-weight: 700; color: var(--color-accent); }
.story-title { font-weight: 700; margin-bottom: 4px; font-size: 0.9rem; }
.story-desc { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 8px; }
.story-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-story-move {
  font-size: 0.68rem;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: pointer;
}
.btn-story-move:hover { color: var(--text); border-color: var(--color-primary); }

.burndown-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.burndown-legend { display: flex; gap: 14px; font-size: 0.78rem; color: var(--text-muted); }
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 10px; height: 10px; border-radius: 999px; display: inline-block; }
.legend-dot.ideal-line { background: #6366f1; }
.legend-dot.actual-line { background: #06b6d4; }
.svg-chart-container { width: 100%; }
.burndown-svg { width: 100%; height: auto; display: block; }
.burndown-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.burndown-table th, .burndown-table td { padding: 8px; text-align: center; border-bottom: 1px solid var(--border); }
.burndown-input { width: 60px; padding: 6px; text-align: center; border-radius: 6px; border: 1px solid var(--border-strong); background: var(--bg-input); color: var(--text); }

.poker-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(99,102,241,0.15);
  color: #a5a8ff;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.poker-items-list { display: flex; flex-direction: column; gap: 12px; }
.poker-item { padding: 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-nested); }
.poker-item.highlight-item { border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.08); }
.poker-story-header { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.poker-id { font-weight: 800; color: var(--color-accent); font-size: 0.85rem; }
.poker-points { font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--bg-elevated); border: 1px solid var(--border); }
.poker-title { font-weight: 700; }
.poker-desc { font-size: 0.85rem; color: var(--text-muted); margin: 0; }

.retro-board-container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .retro-board-container { grid-template-columns: 1fr; } }
.retro-column { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.retro-col-header { font-weight: 700; font-size: 0.92rem; }
.retro-items { display: flex; flex-direction: column; gap: 8px; min-height: 40px; }
.retro-card { background: var(--bg-nested); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; font-size: 0.85rem; }
.retro-add-box { display: flex; flex-direction: column; gap: 6px; }

/* ============ Community ============ */
.community-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 950px) { .community-grid { grid-template-columns: 1fr; } }
.study-groups-list { display: flex; flex-direction: column; gap: 12px; }
.study-group-card {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 14px;
  background: var(--bg-nested);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}
.group-title-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.group-name { margin: 0; }
.group-desc { font-size: 0.85rem; color: var(--text-muted); margin: 6px 0; }
.group-meta { font-size: 0.75rem; color: var(--text-muted); }
.live-dot-pulse { color: var(--color-danger); font-size: 0.75rem; font-weight: 700; }
.peer-feed-list { display: flex; flex-direction: column; gap: 12px; }
.peer-feed-item { display: flex; gap: 12px; align-items: flex-start; }
.peer-avatar { font-size: 1.5rem; }
.peer-text { font-size: 0.87rem; }
.peer-time { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.focus-room-header { display: flex; align-items: center; justify-content: space-between; }
.timer-display-box { text-align: center; }
.timer-clock { font-size: 2.4rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.timer-controls { display: flex; justify-content: center; gap: 8px; }
.badges-grid-compact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.badge-item { text-align: center; padding: 10px 6px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-nested); }
.badge-item.badge-locked { opacity: 0.4; }
.badge-icon-lg { font-size: 1.6rem; }
.badge-name { font-size: 0.7rem; font-weight: 700; margin-top: 4px; }
.badge-status { font-size: 0.62rem; color: var(--text-muted); }

.share-card-preview {
  background: linear-gradient(135deg, #1e1b4b, #0f172a);
  border-radius: var(--radius-lg);
  padding: 22px;
  color: #fff;
}
.share-card-brand { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.share-brand-logo { font-weight: 800; }
.share-badge-pill { background: rgba(255,255,255,0.15); padding: 3px 10px; border-radius: 999px; font-size: 0.7rem; }
.share-user-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.share-avatar { font-size: 2.2rem; }
.share-user-name { margin: 0; color: #fff; }
.share-target-cert { font-size: 0.8rem; opacity: 0.8; }
.share-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 12px; }
.share-stat-col { text-align: center; }
.share-stat-num { display: block; font-size: 1.3rem; font-weight: 800; }
.share-stat-lbl { font-size: 0.68rem; opacity: 0.75; }
.share-footer-text { font-size: 0.7rem; opacity: 0.6; text-align: center; }
.user-big-avatar { font-size: 3rem; }
.user-menu-actions { display: flex; flex-direction: column; gap: 8px; }

/* ============ Admin ============ */
.admin-cert-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.cert-admin-box { padding: 16px; }
.cert-admin-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.cert-admin-identity { display: flex; align-items: center; gap: 10px; }
.cert-icon-lg { font-size: 1.8rem; }
.cert-admin-name { margin: 0 0 4px; font-size: 0.95rem; }
.cert-admin-actions { display: flex; gap: 6px; }
.cert-stat-line { display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; margin-bottom: 4px; }
.domain-mini-list { list-style: none; padding: 0; margin: 4px 0 0; font-size: 0.8rem; color: var(--text-muted); }
.domain-mini-list li { padding: 3px 0; }
.domain-weight-badge { display: inline-block; min-width: 32px; font-weight: 700; color: var(--color-accent); }
.resource-pill-group { display: flex; flex-wrap: wrap; gap: 6px; }
.resource-chip {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ============ Data Sync Modal ============ */
.sync-actions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .sync-actions-grid { grid-template-columns: 1fr; } }
.danger-zone-box { border: 1px solid rgba(239,68,68,0.35); }

/* ============ Resources modal ============ */
.resources-attached-list, .suggested-modal-list { display: flex; flex-direction: column; gap: 8px; }
.resource-attached-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg-nested);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.res-info { display: flex; align-items: center; gap: 10px; }

/* ============ Toasts ============ */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
}
.toast-item {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  animation: toast-in 0.2s ease;
}
.toast-success { border-color: rgba(16,185,129,0.4); }
.toast-danger { border-color: rgba(239,68,68,0.4); }
.toast-warning { border-color: rgba(245,158,11,0.4); }
.toast-fadeout { opacity: 0; transform: translateY(6px); transition: all 0.3s ease; }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ============ Scrollbars (dark-friendly) ============ */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }

/* ============ Notification Bell ============ */
.btn-icon.btn-icon-active {
  border-color: var(--color-primary);
  background: rgba(99,102,241,0.15);
  color: var(--color-primary);
}

/* ============ Profile Photo ============ */
.user-avatar-photo {
  width: 22px; height: 22px;
  border-radius: 999px;
  object-fit: cover;
}
.profile-photo-wrap { display: flex; flex-direction: column; align-items: center; }
.user-big-avatar-photo {
  width: 88px; height: 88px;
  border-radius: 999px;
  object-fit: cover;
  border: 2px solid var(--border-strong);
}

/* ============ Account section (Credly / MFA) ============ */
.account-section-block {
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.credly-linked-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }

/* ============ Timeline ============ */
.timeline-list { display: flex; flex-direction: column; gap: 10px; }
.timeline-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-nested);
}
.timeline-item-urgent { border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.08); }
.timeline-icon { font-size: 1.3rem; }
.timeline-body { flex: 1; }
.timeline-top-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.timeline-tip { font-size: 0.85rem; margin-top: 4px; color: var(--text-muted); }

/* ============ Subreddit link ============ */
.subreddit-link { color: var(--color-danger); font-weight: 600; }

/* ============ Friends list ============ */
.friends-list { display: flex; flex-direction: column; gap: 10px; }
.friend-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 12px;
  background: var(--bg-nested);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-wrap: wrap;
}
.friend-info { display: flex; align-items: center; gap: 10px; }

/* ============ AI Chatbot Widget ============ */
.chatbot-widget { position: fixed; bottom: 20px; right: 20px; z-index: 150; }
.chatbot-toggle-btn {
  width: 56px; height: 56px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
}
.chatbot-toggle-btn:hover { opacity: 0.92; }
.chatbot-panel {
  position: absolute;
  bottom: 68px;
  right: 0;
  width: 330px;
  max-width: calc(100vw - 40px);
  height: 420px;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.chatbot-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-nested);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-msg {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  line-height: 1.4;
}
.chat-msg-bot {
  align-self: flex-start;
  background: var(--bg-nested);
  border: 1px solid var(--border);
}
.chat-msg-user {
  align-self: flex-end;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
}
.chatbot-input-row {
  display: flex;
  gap: 8px;
  padding: 10px;
  border-top: 1px solid var(--border);
}
.chatbot-input-row .form-input { flex: 1; }

/* ============ Print ============ */
@media print {
  .app-header, .main-nav, .toast-container, .sessions-header-controls .btn-group { display: none !important; }
}