/* ============================================================
   EasyVPN Manager — Global Stylesheet
   Dark/blue theme. Mobile-first. No external dependencies.
   ============================================================ */

/* ─── Reset & Base ─────────────────────────────────────────── */

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

:root {
  --primary:        #2563eb;
  --primary-hover:  #1d4ed8;
  --primary-light:  #3b82f6;
  --dark:           #0f172a;
  --dark-2:         #1a2540;
  --card-bg:        #1e293b;
  --card-hover:     #263348;
  --text:           #f1f5f9;
  --muted:          #94a3b8;
  --border:         #334155;
  --success:        #22c55e;
  --success-bg:     #14532d;
  --danger:         #ef4444;
  --danger-bg:      #7f1d1d;
  --warning:        #f59e0b;
  --warning-bg:     #78350f;
  --info:           #38bdf8;
  --info-bg:        #0c4a6e;
  --radius:         8px;
  --radius-lg:      14px;
  --shadow:         0 4px 24px rgba(0,0,0,.35);
  --transition:     0.2s ease;
  --sidebar-width:  240px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--dark);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

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

a:hover { color: var(--text); }

img { max-width: 100%; }

ul { list-style: none; }

/* ─── Typography ────────────────────────────────────────────── */

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

.text-muted   { color: var(--muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-center  { text-align: center; }

/* ─── Layout ────────────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* ─── Buttons ───────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary  { background: var(--primary);  color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }

.btn-secondary { background: var(--card-bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--card-hover); color: var(--text); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-success { background: var(--success); color: #111; }
.btn-success:hover { background: #16a34a; }

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.85rem; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

.btn:disabled, .btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; }

/* ─── Alerts / Flash Messages ───────────────────────────────── */

.alert {
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
  border-left: 4px solid transparent;
}

.alert-success { background: var(--success-bg); color: #bbf7d0; border-color: var(--success); }
.alert-error   { background: var(--danger-bg);  color: #fecaca; border-color: var(--danger); }
.alert-info    { background: var(--info-bg);    color: #bae6fd; border-color: var(--info); }
.alert-warning { background: var(--warning-bg); color: #fde68a; border-color: var(--warning); }

/* ─── Badges ────────────────────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-success   { background: var(--success-bg); color: var(--success); }
.badge-danger    { background: var(--danger-bg);  color: var(--danger); }
.badge-info      { background: var(--info-bg);    color: var(--info); }
.badge-warning   { background: var(--warning-bg); color: var(--warning); }
.badge-secondary { background: var(--border);     color: var(--muted); }

/* ─── Cards ─────────────────────────────────────────────────── */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.card-sm { padding: 1.25rem; }

/* ─── Forms ─────────────────────────────────────────────────── */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.9rem;
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.2);
}

.form-control::placeholder { color: var(--muted); }

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394a3b8' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.3rem;
}

.form-error { color: var(--danger); font-size: 0.85rem; margin-top: 0.3rem; }

/* ─── Tables ────────────────────────────────────────────────── */

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  font-size: 0.9rem;
}

thead th {
  padding: 0.9rem 1rem;
  text-align: left;
  background: var(--dark-2);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}

tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--card-hover); }

.td-actions {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

/* ─── Navbar ────────────────────────────────────────────────── */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,23,42,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.25rem;
}

.navbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-logo span { color: var(--primary-light); }

.navbar-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.navbar-links a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.navbar-links a:hover { color: var(--text); }

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .nav-hamburger { display: block; }

  .navbar-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--dark-2);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem;
    gap: 1rem;
  }
}

/* ─── Hero ──────────────────────────────────────────────────── */

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% -20%, rgba(37,99,235,.25) 0%, transparent 65%);
}

.hero-badge {
  display: inline-block;
  background: rgba(37,99,235,.15);
  border: 1px solid rgba(59,130,246,.3);
  color: var(--primary-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-light);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

/* ─── Features ──────────────────────────────────────────────── */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(37,99,235,.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { color: var(--muted); font-size: 0.95rem; line-height: 1.6; }

/* ─── Pricing ───────────────────────────────────────────────── */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: border-color var(--transition);
}

.pricing-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(37,99,235,.08) 0%, var(--card-bg) 100%);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.25rem 1rem;
  border-radius: 999px;
  white-space: nowrap;
}

.plan-name  { font-size: 0.85rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.plan-price { font-size: 2.5rem; font-weight: 800; line-height: 1; }
.plan-price span { font-size: 1rem; font-weight: 400; color: var(--muted); }
.plan-desc  { color: var(--muted); font-size: 0.9rem; }

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.plan-feature {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.plan-feature::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
}

.plan-feature.missing { text-decoration: line-through; }
.plan-feature.missing::before { content: '✕'; color: var(--danger); }

/* ─── How It Works ──────────────────────────────────────────── */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  counter-reset: steps;
}

.step {
  text-align: center;
  position: relative;
}

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.step h3 { margin-bottom: 0.5rem; }
.step p   { color: var(--muted); font-size: 0.95rem; }

/* ─── FAQ ───────────────────────────────────────────────────── */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  font-size: 0.97rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  gap: 1rem;
  transition: background var(--transition);
}

.faq-question:hover { background: var(--card-hover); }

.faq-icon {
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--primary-light);
  transition: transform var(--transition);
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid var(--border);
}

.faq-item.open .faq-answer { display: block; }

/* ─── Footer ────────────────────────────────────────────────── */

.footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
}

.footer-logo span { color: var(--primary-light); }

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a { color: var(--muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--text); }

.footer-copy { color: var(--muted); font-size: 0.85rem; }

/* ─── Auth Pages (Login / Register) ────────────────────────── */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  background: radial-gradient(ellipse at 50% 0%, rgba(37,99,235,.15) 0%, transparent 60%);
}

.auth-box {
  width: 100%;
  max-width: 420px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo a {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
}

.auth-logo a span { color: var(--primary-light); }

.auth-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.auth-card h2 {
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.auth-card .subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

.auth-footer {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ─── Dashboard (User) ──────────────────────────────────────── */

.app-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-topbar {
  background: var(--dark-2);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.app-topbar-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}

.app-topbar-logo span { color: var(--primary-light); }

.app-topbar-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.app-main {
  flex: 1;
  padding: 2rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
}

.stat-sub {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.info-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.info-row .label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-row .value {
  font-size: 0.97rem;
  color: var(--text);
  font-family: 'Courier New', monospace;
}

.setup-steps {
  counter-reset: setup;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.setup-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  counter-increment: setup;
  font-size: 0.95rem;
  color: var(--muted);
}

.setup-step::before {
  content: counter(setup);
  background: var(--primary);
  color: #fff;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

/* ─── Admin Layout ──────────────────────────────────────────── */

.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--dark-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 40;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 1.25rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-logo span { color: var(--primary-light); }

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.sidebar-section {
  padding: 0.5rem 1.25rem 0.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.sidebar-link:hover {
  background: rgba(255,255,255,.05);
  color: var(--text);
}

.sidebar-link.active {
  background: rgba(37,99,235,.15);
  color: var(--primary-light);
  border-right: 3px solid var(--primary);
}

.sidebar-link .icon { font-size: 1.1rem; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}

.admin-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 2rem;
  min-width: 0;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-header h1 { font-size: 1.5rem; }

/* Responsive admin sidebar */
@media (max-width: 900px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .admin-content {
    margin-left: 0;
    padding: 1.25rem;
  }

  .admin-toggle {
    display: flex;
  }
}

.admin-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

/* ─── Modal ─────────────────────────────────────────────────── */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover { color: var(--text); }

/* ─── Pagination / Empty state ──────────────────────────────── */

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
}

.empty-state p { margin-top: 0.5rem; font-size: 0.95rem; }

/* ─── Section alternate BG ──────────────────────────────────── */

.section-alt {
  background: var(--dark-2);
}

/* ─── Utility ───────────────────────────────────────────────── */

.mt-1  { margin-top: 0.5rem; }
.mt-2  { margin-top: 1rem; }
.mt-3  { margin-top: 1.5rem; }
.mb-2  { margin-bottom: 1rem; }
.mb-3  { margin-bottom: 1.5rem; }
.mb-4  { margin-bottom: 2rem; }
.gap-1 { gap: 0.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

@media (max-width: 600px) {
  .hide-mobile { display: none !important; }
}