@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── DEFAULT THEME: SLATE OCEAN ────────────────────────────────────────────── */
:root {
  --bg:       #0d1117;
  --surface:  #161b22;
  --surface2: #21262d;
  --accent:       #58a6ff;
  --accent-dim:   rgba(88,166,255,0.12);
  --on-accent:    #0d1117;
  --text:   #e6edf3;
  --muted:  #8b949e;
  --border:  #30363d;
  --border2: #3d444d;

  --success: #3fb950;
  --danger:  #f85149;
  --warning: #d29922;

  --badge-success-bg: rgba(63,185,80,0.12);
  --badge-danger-bg:  rgba(248,81,73,0.12);
  --badge-warning-bg: rgba(210,153,34,0.12);

  --alert-success-bg:     rgba(63,185,80,0.1);
  --alert-success-border: rgba(63,185,80,0.3);
  --alert-success-text:   #3fb950;
  --alert-danger-bg:      rgba(248,81,73,0.1);
  --alert-danger-border:  rgba(248,81,73,0.3);
  --alert-danger-text:    #f85149;
  --alert-warning-bg:     rgba(210,153,34,0.1);
  --alert-warning-border: rgba(210,153,34,0.3);
  --alert-warning-text:   #d29922;

  --level-blue-bg:   rgba(88,166,255,0.12);
  --level-blue-text: #58a6ff;

  --radius:    8px;
  --radius-lg: 12px;
}

/* ── ALTERNATE THEME: CHALK ────────────────────────────────────────────────── */
html[data-theme="light"] {
  --bg:       #f0f2f7;
  --surface:  #ffffff;
  --surface2: #eef0f6;
  --accent:       #2a7a4a;
  --accent-dim:   #d6f5e8;
  --on-accent:    #ffffff;
  --text:   #1e2235;
  --muted:  #6b7390;
  --border:  #d8dce8;
  --border2: #c5c9d8;

  --success:  #1a5c3a;
  --danger:   #8b2020;
  --warning:  #7a5500;

  --badge-success-bg: #d6f5e8;
  --badge-danger-bg:  #fde8e8;
  --badge-warning-bg: #fef3d6;

  --alert-success-bg:     #d6f5e8;
  --alert-success-border: rgba(26,92,58,0.3);
  --alert-success-text:   #1a5c3a;
  --alert-danger-bg:      #fde8e8;
  --alert-danger-border:  rgba(139,32,32,0.3);
  --alert-danger-text:    #8b2020;
  --alert-warning-bg:     #fef3d6;
  --alert-warning-border: rgba(122,85,0,0.3);
  --alert-warning-text:   #7a5500;

  --level-blue-bg:   #dde8ff;
  --level-blue-text: #1a3a7a;
}

html { font-size: 15px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* LAYOUT */
.app-layout { display: flex; min-height: 100vh; }

/* SIDEBAR */
.sidebar {
  width: 240px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .25s ease;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 28px 24px 24px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo .logo-mark {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1;
}
.sidebar-logo .logo-mark span { color: var(--accent); }
.sidebar-logo .logo-sub {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 4px;
}

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 8px 12px 6px;
  margin-top: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.2s;
  margin-bottom: 2px;
}
.nav-item:hover  { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); }
.nav-item .icon  { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}
.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  margin-bottom: 8px;
}
.user-avatar {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800;
  color: var(--on-accent);
  flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 700; }
.user-role { font-family: 'Space Mono', monospace; font-size: 9px; color: var(--muted); text-transform: uppercase; }

.btn-logout {
  width: 100%;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.2s;
}
.btn-logout:hover { border-color: var(--danger); color: var(--danger); }

/* MAIN CONTENT */
.main-content {
  margin-left: 240px;
  flex: 1;
  padding: 32px;
  min-height: 100vh;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
}
.page-title { font-size: 32px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.page-sub { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px; margin-top: 6px; }

/* CARDS */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card-title {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

/* STAT CARDS */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.stat-card:hover::after { transform: scaleX(1); }
.stat-label { font-family: 'Space Mono', monospace; font-size: 9px; color: var(--muted); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.stat-value { font-size: 40px; font-weight: 800; letter-spacing: -2px; line-height: 1; }
.stat-value.accent { color: var(--accent); }
.stat-sub { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); margin-top: 8px; }

/* BADGES */
.stat-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.badge-success { background: var(--badge-success-bg); color: var(--success); }
.badge-warning { background: var(--badge-warning-bg); color: var(--warning); }
.badge-danger  { background: var(--badge-danger-bg);  color: var(--danger); }
.badge-muted   { background: var(--surface2); color: var(--muted); }
.badge-accent  { background: var(--accent-dim); color: var(--accent); }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { opacity: 0.85; }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--badge-danger-bg); color: var(--danger); border: 1px solid var(--alert-danger-border); }
.btn-danger:hover { opacity: 0.85; }
.btn-sm { padding: 7px 14px; font-size: 12px; }
.btn-icon { padding: 8px; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer; color: var(--muted); transition: all 0.2s; font-size: 14px; }
.btn-icon:hover { border-color: var(--accent); color: var(--accent); }

/* FORMS */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
label { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
select option { background: var(--surface); }
textarea { resize: vertical; min-height: 80px; }

/* TABLE */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background 0.15s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--surface2); }
td { padding: 14px 16px; font-size: 13px; vertical-align: middle; }

/* STUDENT AVATAR */
.student-avatar {
  width: 36px; height: 36px;
  min-width: 36px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--surface2);
  flex-shrink: 0;
  display: block;
  align-self: center;
  vertical-align: middle;
}
.avatar-placeholder {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800;
  color: var(--accent);
  flex-shrink: 0;
}
.student-info .name { font-weight: 700; font-size: 13px; }
.student-info .meta { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); margin-top: 2px; }

/* LEVEL BADGE */
.level-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.level-beginner,
.level-incepator   { background: var(--level-blue-bg);   color: var(--level-blue-text); }
.level-intermediar { background: var(--badge-warning-bg); color: var(--warning); }
.level-avansat     { background: var(--badge-success-bg); color: var(--success); }

/* SEARCH & FILTERS */
.filters-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}
.search-wrap input { padding-left: 36px; }
.search-icon {
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 14px;
  pointer-events: none;
}
.filter-select { max-width: 160px; }

/* MODAL */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(3px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.25s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
  padding: 24px 24px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
}
.modal-title { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.modal-sub { font-family: 'Space Mono', monospace; font-size: 10px; color: var(--muted); margin-top: 4px; }
.modal-close {
  background: none; border: none; color: var(--muted);
  font-size: 20px; cursor: pointer; padding: 4px;
  transition: color 0.2s; line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 0 24px; }
.modal-footer {
  padding: 24px;
  display: flex; align-items: center; gap: 10px; justify-content: flex-end;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}

/* TABS */
.tabs { display: flex; gap: 4px; margin-bottom: 24px; }
.tab-btn {
  padding: 8px 18px;
  border-radius: var(--radius);
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.tab-btn:hover:not(.active) { border-color: var(--border2); color: var(--text); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* PAYMENT STATUS */
.pay-dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block; margin-right: 6px;
}
.pay-paid    .pay-dot { background: var(--success); }
.pay-unpaid  .pay-dot { background: var(--danger); }
.pay-partial .pay-dot { background: var(--warning); }

/* SCHEDULE */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  align-items: start;
}
.day-col { display: flex; flex-direction: column; gap: 10px; }
.day-header {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  text-align: center;
  font-weight: 700;
}
.time-row { display: flex; flex-direction: column; gap: 5px; }
.time-row-label {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 1px;
  padding: 2px 0;
}
.time-row-courts { display: flex; flex-direction: row; gap: 5px; }
.time-row-courts .slot-card { flex: 1; min-width: 0; }

.slot-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.slot-card:hover { border-color: var(--accent); }
.slot-card.has-class { border-color: var(--accent); background: var(--accent-dim); }
.slot-time { font-family: 'Space Mono', monospace; font-size: 9px; color: var(--accent); font-weight: 700; }
.slot-name { font-size: 11px; font-weight: 700; margin-top: 4px; line-height: 1.3; }
.slot-meta { font-family: 'Space Mono', monospace; font-size: 8px; color: var(--muted); margin-top: 3px; }

/* ALERTS */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  margin-bottom: 16px;
}
.alert-success { background: var(--alert-success-bg); border: 1px solid var(--alert-success-border); color: var(--alert-success-text); }
.alert-danger  { background: var(--alert-danger-bg);  border: 1px solid var(--alert-danger-border);  color: var(--alert-danger-text); }
.alert-warning { background: var(--alert-warning-bg); border: 1px solid var(--alert-warning-border); color: var(--alert-warning-text); }

/* DIVIDER */
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* PROGRESS BAR */
.progress-bar  { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.6s ease; }

/* RESPONSIVE GRIDS */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-bottom: 24px; }
@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

/* UTILS */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-8  { gap: 8px; }
.gap-10 { gap: 10px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.text-muted   { color: var(--muted); }
.text-accent  { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-mono    { font-family: 'Space Mono', monospace; font-size: 11px; }
.text-right   { text-align: right; }
.font-bold    { font-weight: 700; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

@media (max-width: 1100px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s ease; }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 16px; padding-top: 0; }
  .schedule-grid { grid-template-columns: repeat(2, 1fr); }
  .mobile-header { display: flex; }

  .page-header { flex-direction: column; gap: 12px; margin-bottom: 20px; }
  .page-title { font-size: 24px; }

  .form-grid { grid-template-columns: 1fr; }

  .filter-select { max-width: 100%; }
  .filters-bar { gap: 8px; }
  .search-wrap { min-width: 0; width: 100%; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 28px; }

  .tabs { flex-wrap: wrap; gap: 6px; }
  .tab-btn { font-size: 11px; padding: 7px 12px; }

  .modal { max-width: 100%; margin: 0; border-radius: 0; min-height: auto; }
  .modal-overlay { align-items: flex-end; padding: 0; }
  .modal-overlay.open .modal { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }

  .modal-footer { flex-wrap: wrap; }
  .modal-footer .btn { flex: 1; justify-content: center; }

  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .card { padding: 16px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .schedule-grid { grid-template-columns: 1fr; }
  .main-content { padding: 12px; padding-top: 0; }
}

/* Mobile header bar */
.mobile-header {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 90;
}
.mobile-header .app-title {
  font-weight: 800;
  font-size: 15px;
  flex: 1;
}
.hamburger {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 36px;
  height: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 0;
}
.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .2s;
}

/* Overlay behind sidebar on mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}
.sidebar-overlay.open { display: block; }

/* ── TRIAL BANNER ────────────────────────────────────────────────────────── */
.trial-banner {
  padding: 10px 20px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 600;
}
.trial-banner-active {
  background: var(--alert-warning-bg);
  border: 1px solid var(--alert-warning-border);
  color: var(--alert-warning-text);
}
.trial-banner-expired {
  background: var(--alert-danger-bg);
  border: 1px solid var(--alert-danger-border);
  color: var(--alert-danger-text);
}
.trial-banner-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.trial-badge {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--badge-warning-bg);
  color: var(--warning);
}
.trial-badge-expired {
  background: var(--badge-danger-bg);
  color: var(--danger);
}
.trial-upgrade-link {
  margin-left: auto;
  font-weight: 700;
  font-size: 12px;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}
.trial-upgrade-link:hover {
  text-decoration: underline;
}

/* ── ONBOARDING TOUR ─────────────────────────────────────────────────────── */
.ob-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 9998;
  backdrop-filter: blur(2px);
}

.ob-highlight {
  position: relative;
  z-index: 9999 !important;
  background: var(--surface2) !important;
  box-shadow: 0 0 0 4px var(--accent), 0 0 24px rgba(88, 166, 255, 0.25);
  border-radius: var(--radius) !important;
}

.ob-tooltip {
  position: fixed;
  z-index: 10000;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  width: 340px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.ob-tooltip.ob-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.ob-step-count {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.ob-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
}

.ob-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 18px;
}

.ob-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.ob-btn {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 7px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: all 0.2s;
}
.ob-btn-secondary {
  background: var(--surface2);
  color: var(--muted);
}
.ob-btn-secondary:hover {
  color: var(--text);
  border-color: var(--border2);
}
.ob-btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}
.ob-btn-primary:hover {
  filter: brightness(1.15);
}

/* Help / tour trigger button in sidebar footer */
.ob-help-btn {
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s;
  margin-top: 6px;
}
.ob-help-btn:hover {
  color: var(--text);
  border-color: var(--border2);
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .ob-tooltip {
    width: calc(100vw - 32px);
    left: 16px !important;
    bottom: 16px !important;
    top: auto !important;
  }
}