:root {
  --primary: #0f766e;
  --primary-light: #14b8a6;
  --primary-dark: #0d5f59;
  --secondary: #6366f1;
  --accent: #f59e0b;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --bg-sidebar-active: #0f766e;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-sidebar: #cbd5e1;
  --text-sidebar-active: #ffffff;

  --border: #e2e8f0;
  --border-light: #f1f5f9;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);

  --radius-sm: 6px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --sidebar-width: 260px;
  --sidebar-collapsed: 70px;
  --header-height: 64px;

  --transition: all 0.2s ease;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-sidebar: #020617;
  --bg-sidebar-hover: #0f172a;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #64748b;

  --border: #334155;
  --border-light: #1e293b;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: var(--transition);
}

a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-light); }

img { max-width: 100%; height: auto; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #4f46e5; color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; color: var(--text-primary); font-size: 14px; }
.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15,118,110,0.1); }
select.form-control { cursor: pointer; }
textarea.form-control { min-height: 100px; resize: vertical; }

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); }
.card-header { padding: 20px; border-bottom: 1px solid var(--border-light); }
.card-body { padding: 20px; }
.card-footer { padding: 16px 20px; border-top: 1px solid var(--border-light); background: var(--bg-tertiary); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-full);
}
.badge-student { background: #dbeafe; color: #1d4ed8; }
.badge-professional { background: #fef3c7; color: #b45309; }
.badge-mentor { background: #d1fae5; color: #047857; }
.badge-admin { background: #ede9fe; color: #6d28d9; }
.badge-success { background: #d1fae5; color: #047857; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-danger { background: #fee2e2; color: #b91c1c; }
.badge-info { background: #dbeafe; color: #1d4ed8; }
.badge-pending { background: #fef3c7; color: #b45309; }
.badge-approved { background: #d1fae5; color: #047857; }
.badge-rejected { background: #fee2e2; color: #b91c1c; }

[data-theme="dark"] .badge-student { background: #1e3a5f; }
[data-theme="dark"] .badge-professional { background: #451a03; }
[data-theme="dark"] .badge-mentor { background: #064e3b; }
[data-theme="dark"] .badge-admin { background: #3b0764; }

/* Tables */
.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-light); }
.table th { font-weight: 600; color: var(--text-secondary); font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; background: var(--bg-tertiary); }
.table tr:hover { background: var(--bg-tertiary); }

/* Alerts */
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #d1fae5; color: #065f46; border-left: 4px solid var(--success); }
.alert-danger { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-warning { background: #fef3c7; color: #92400e; border-left: 4px solid var(--warning); }
.alert-info { background: #dbeafe; color: #1e40af; border-left: 4px solid var(--info); }

[data-theme="dark"] .alert-success { background: #064e3b; color: #d1fae5; }
[data-theme="dark"] .alert-danger { background: #7f1d1d; color: #fee2e2; }
[data-theme="dark"] .alert-warning { background: #78350f; color: #fef3c7; }
[data-theme="dark"] .alert-info { background: #1e3a5f; color: #dbeafe; }

/* Grid */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Stats cards */
.stat-card { display: flex; align-items: center; gap: 16px; padding: 20px; }
.stat-icon { width: 50px; height: 50px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 24px; }
.stat-icon.primary { background: rgba(15,118,110,0.1); color: var(--primary); }
.stat-icon.secondary { background: rgba(99,102,241,0.1); color: var(--secondary); }
.stat-icon.success { background: rgba(34,197,94,0.1); color: var(--success); }
.stat-icon.warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-secondary); }

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); }
.navbar-brand { font-size: 22px; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 10px; }
.navbar-brand img { height: 36px; }
.navbar-nav { display: flex; align-items: center; gap: 8px; list-style: none; }
.navbar-nav a { padding: 8px 14px; border-radius: var(--radius); font-weight: 500; font-size: 14px; color: var(--text-secondary); }
.navbar-nav a:hover, .navbar-nav a.active { color: var(--primary); background: rgba(15,118,110,0.08); }

.navbar-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-primary); }

@media (max-width: 768px) {
  .navbar-toggle { display: block; }
  .navbar-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-primary); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); }
  .navbar-nav.show { display: flex; }
  .navbar-nav a { width: 100%; padding: 12px; }
}

/* Hero section */
.hero { padding: 100px 0; text-align: center; background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); color: #fff; }
.hero h1 { font-size: 48px; font-weight: 800; margin-bottom: 20px; line-height: 1.2; }
.hero p { font-size: 20px; opacity: 0.9; max-width: 600px; margin: 0 auto 30px; }
.hero .btn { background: #fff; color: var(--primary); font-weight: 600; }
.hero .btn:hover { background: var(--bg-tertiary); }

@media (max-width: 768px) {
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
}

/* Sections */
.section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.section-title p { color: var(--text-secondary); font-size: 18px; max-width: 600px; margin: 0 auto; }

/* Footer */
.footer { background: var(--bg-sidebar); color: var(--text-sidebar); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-bottom: 40px; }
.footer h4 { color: #fff; margin-bottom: 20px; font-size: 16px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--text-sidebar); }
.footer ul a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; font-size: 14px; }

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Sidebar layout */
.dashboard-layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-y: auto;
  z-index: 50;
  transition: var(--transition);
}
.sidebar-brand { padding: 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar-brand a { font-size: 20px; font-weight: 700; color: #fff; }
.sidebar-menu { padding: 16px 0; }
.sidebar-menu-label { padding: 12px 20px 8px; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,0.3); }
.sidebar-link { display: flex; align-items: center; gap: 12px; padding: 12px 20px; color: var(--text-sidebar); font-size: 14px; font-weight: 500; transition: var(--transition); }
.sidebar-link:hover { background: var(--bg-sidebar-hover); color: #fff; }
.sidebar-link.active { background: var(--bg-sidebar-active); color: var(--text-sidebar-active); border-right: 3px solid #fff; }
.sidebar-link i { width: 20px; text-align: center; }

@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.show { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
}

/* Main content */
.main-content { flex: 1; margin-left: var(--sidebar-width); transition: var(--transition); }
.main-header { height: var(--header-height); background: var(--bg-primary); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 24px; position: sticky; top: 0; z-index: 40; }
.main-header-left { display: flex; align-items: center; gap: 16px; }
.main-header-right { display: flex; align-items: center; gap: 16px; }
.sidebar-toggle { display: none; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-primary); }
@media (max-width: 1024px) { .sidebar-toggle { display: block; } }

.main-body { padding: 24px; }

/* Theme toggle */
.theme-toggle { width: 40px; height: 40px; border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; background: var(--bg-tertiary); border: none; cursor: pointer; font-size: 18px; transition: var(--transition); }
.theme-toggle:hover { background: var(--border); }

/* User dropdown */
.user-menu { display: flex; align-items: center; gap: 10px; cursor: pointer; padding: 6px 12px; border-radius: var(--radius); transition: var(--transition); }
.user-menu:hover { background: var(--bg-tertiary); }
.user-avatar { width: 36px; height: 36px; border-radius: var(--radius-full); background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; }
.user-avatar img { width: 100%; height: 100%; border-radius: var(--radius-full); object-fit: cover; }
.user-info { line-height: 1.3; }
.user-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.user-role { font-size: 12px; color: var(--text-secondary); }

/* Notification badge */
.notification-bell { position: relative; width: 40px; height: 40px; border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; background: var(--bg-tertiary); border: none; cursor: pointer; font-size: 18px; }
.notification-count { position: absolute; top: 4px; right: 4px; width: 18px; height: 18px; background: var(--danger); color: #fff; border-radius: var(--radius-full); font-size: 10px; display: flex; align-items: center; justify-content: center; font-weight: 600; }

/* Notification dropdown */
.notification-dropdown { position: absolute; top: calc(100% + 8px); right: 0; width: 360px; background: var(--bg-card); border-radius: var(--radius-md); box-shadow: var(--shadow-xl); border: 1px solid var(--border); display: none; z-index: 100; }
.notification-dropdown.show { display: block; }
.notification-dropdown-header { padding: 16px; border-bottom: 1px solid var(--border); font-weight: 600; }
.notification-item { padding: 12px 16px; border-bottom: 1px solid var(--border-light); cursor: pointer; transition: var(--transition); }
.notification-item:hover { background: var(--bg-tertiary); }
.notification-item.unread { background: rgba(15,118,110,0.05); }
.notification-item-title { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.notification-item-message { font-size: 13px; color: var(--text-secondary); }
.notification-item-time { font-size: 11px; color: var(--text-tertiary); margin-top: 4px; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; display: none; align-items: center; justify-content: center; }
.modal-overlay.show { display: flex; }
.modal { background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); width: 90%; max-width: 500px; max-height: 90vh; overflow-y: auto; }
.modal-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 18px; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-secondary); }
.modal-body { padding: 20px; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 12px; }

/* Pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 20px; }
.pagination a, .pagination span { padding: 8px 14px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 14px; }
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab { padding: 12px 20px; cursor: pointer; font-weight: 500; font-size: 14px; border-bottom: 2px solid transparent; transition: var(--transition); color: var(--text-secondary); }
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* QR display */
.qr-container { text-align: center; padding: 30px; }
.qr-container img { max-width: 250px; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }
.qr-instructions { margin-top: 20px; font-size: 14px; color: var(--text-secondary); }

/* File upload */
.file-upload { border: 2px dashed var(--border); border-radius: var(--radius-md); padding: 30px; text-align: center; cursor: pointer; transition: var(--transition); }
.file-upload:hover { border-color: var(--primary); background: rgba(15,118,110,0.05); }
.file-upload i { font-size: 40px; color: var(--text-tertiary); margin-bottom: 10px; }
.file-upload p { font-size: 14px; color: var(--text-secondary); }

/* Progress bar */
.progress { height: 8px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; background: var(--primary); border-radius: var(--radius-full); transition: width 0.3s ease; }

/* Loading spinner */
.spinner { width: 40px; height: 40px; border: 4px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast notifications */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 300; }
.toast { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 16px 20px; margin-bottom: 12px; display: flex; align-items: center; gap: 12px; min-width: 300px; animation: slideIn 0.3s ease; }
.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }
.toast-info { border-left: 4px solid var(--info); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Public page specific */
.public-page .feature-card { text-align: center; padding: 30px; }
.public-page .feature-icon { width: 70px; height: 70px; margin: 0 auto 20px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: 30px; }
.public-page .pricing-card { text-align: center; padding: 40px 30px; position: relative; }
.public-page .pricing-card.featured { border: 2px solid var(--primary); }
.public-page .pricing-card .price { font-size: 48px; font-weight: 700; color: var(--primary); }
.public-page .pricing-card .price span { font-size: 16px; color: var(--text-secondary); }
.public-page .pricing-card ul { list-style: none; margin: 20px 0; text-align: left; }
.public-page .pricing-card ul li { padding: 8px 0; font-size: 14px; }
.public-page .pricing-card ul li::before { content: "\2713"; color: var(--success); margin-right: 10px; font-weight: 700; }

/* Chart container */
.chart-container { position: relative; height: 300px; }

/* Overlay for mobile sidebar */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 45; }
@media (max-width: 1024px) { .sidebar-overlay.show { display: block; } }

/* Empty state */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state i { font-size: 60px; color: var(--text-tertiary); margin-bottom: 20px; }
.empty-state h3 { font-size: 20px; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); }

/* Auth pages */
.auth-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); padding: 20px; }
.auth-card { background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); width: 100%; max-width: 440px; padding: 40px; }
.auth-card h2 { text-align: center; margin-bottom: 8px; font-size: 28px; }
.auth-card .subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 30px; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 14px; color: var(--text-secondary); }

/* Role selector */
.role-selector { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.role-option { padding: 16px; border: 2px solid var(--border); border-radius: var(--radius-md); cursor: pointer; text-align: center; transition: var(--transition); }
.role-option:hover { border-color: var(--primary); }
.role-option.selected { border-color: var(--primary); background: rgba(15,118,110,0.08); }
.role-option input { display: none; }
.role-option .role-name { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.role-option .role-fee { font-size: 12px; color: var(--text-secondary); }

@media (max-width: 480px) { .role-selector { grid-template-columns: 1fr; } }

/* Action buttons in tables */
.action-btns { display: flex; gap: 6px; }
.action-btn { width: 32px; height: 32px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; border: none; cursor: pointer; transition: var(--transition); font-size: 14px; }
.action-btn-view { background: #dbeafe; color: #1d4ed8; }
.action-btn-edit { background: #fef3c7; color: #b45309; }
.action-btn-delete { background: #fee2e2; color: #b91c1c; }
.action-btn-approve { background: #d1fae5; color: #047857; }
.action-btn-reject { background: #fee2e2; color: #b91c1c; }

/* Filter bar */
.filter-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.filter-bar .form-control { width: auto; min-width: 180px; }

/* Responsive utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.w-100 { width: 100%; }