/* ============================================================
   SHOPWARE LEARN — Global Styles
   ============================================================ */

/* Design Tokens */
:root {
  --sw-blue:        #189eff;
  --sw-blue-dark:   #0f7acc;
  --sw-blue-light:  #e8f5ff;
  --sw-dark:        #0d2438;
  --sw-dark-alt:    #1a3a52;
  --sw-dark-3:      #2d5470;
  --sw-light-bg:    #f4f8fc;
  --sw-border:      #d0e4f5;
  --sw-success:     #28a745;
  --sw-success-bg:  #e8f5ec;
  --sw-danger:      #dc3545;
  --sw-danger-bg:   #fde8ea;
  --sw-warning:     #f0ad00;
  --sw-warning-bg:  #fff8e1;
  --sw-muted:       #6c8fa8;
  --text-primary:   #0d2438;
  --text-secondary: #3d5a72;
  --text-muted:     #6c8fa8;
  --radius:         8px;
  --radius-lg:      12px;
  --radius-xl:      18px;
  --shadow-sm:      0 1px 4px rgba(13,36,56,0.08);
  --shadow:         0 2px 12px rgba(13,36,56,0.10);
  --shadow-lg:      0 4px 24px rgba(13,36,56,0.14);
  --transition:     0.2s ease;
  --header-h:       64px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  background: var(--sw-light-bg);
  line-height: 1.6;
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--sw-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.5rem; }
p { margin-bottom: 0.75rem; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   Layout
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-sm {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   Header / Nav
   ============================================================ */
.app-header {
  background: var(--sw-dark);
  height: var(--header-h);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.app-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.3px;
}
.brand-mark {
  background: var(--sw-blue);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.main-nav a.active {
  background: rgba(24,158,255,0.2);
  color: var(--sw-blue);
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #fff;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  text-decoration: none !important;
  white-space: nowrap;
  line-height: 1.3;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--sw-blue);
  color: #fff;
  border-color: var(--sw-blue);
}
.btn-primary:hover:not(:disabled) {
  background: var(--sw-blue-dark);
  border-color: var(--sw-blue-dark);
  box-shadow: 0 4px 12px rgba(24,158,255,0.3);
}
.btn-outline {
  background: transparent;
  color: var(--sw-blue);
  border-color: var(--sw-blue);
}
.btn-outline:hover:not(:disabled) {
  background: var(--sw-blue-light);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--sw-border);
}
.btn-ghost:hover:not(:disabled) {
  background: #fff;
  color: var(--text-primary);
}
.btn-success {
  background: var(--sw-success);
  color: #fff;
  border-color: var(--sw-success);
}
.btn-danger {
  background: var(--sw-danger);
  color: #fff;
  border-color: var(--sw-danger);
}
.btn-sm {
  padding: 5px 12px;
  font-size: 0.82rem;
  border-radius: 6px;
}
.btn-lg {
  padding: 13px 28px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}
.btn-block { width: 100%; }

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--sw-border);
  overflow: hidden;
}
.card-body { padding: 24px; }
.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--sw-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--sw-border);
  background: var(--sw-light-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2px;
  white-space: nowrap;
}
.badge-blue   { background: var(--sw-blue-light); color: var(--sw-blue-dark); }
.badge-green  { background: var(--sw-success-bg); color: #1a7a33; }
.badge-red    { background: var(--sw-danger-bg);  color: #a82030; }
.badge-yellow { background: var(--sw-warning-bg); color: #8a6200; }
.badge-muted  { background: #eef2f7; color: var(--sw-muted); }

/* ============================================================
   Progress Bar
   ============================================================ */
.progress-wrap {
  background: #e8eef5;
  border-radius: 20px;
  overflow: hidden;
  height: 8px;
}
.progress-bar {
  height: 100%;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--sw-blue), #42b4ff);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 0;
}
.progress-bar.success { background: linear-gradient(90deg, var(--sw-success), #45c86a); }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

/* ============================================================
   Alert / Info Boxes
   ============================================================ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  border-left: 4px solid;
  margin-bottom: 16px;
}
.alert-info    { background: var(--sw-blue-light); border-color: var(--sw-blue); color: var(--sw-dark-alt); }
.alert-success { background: var(--sw-success-bg); border-color: var(--sw-success); color: #1a5c28; }
.alert-danger  { background: var(--sw-danger-bg);  border-color: var(--sw-danger); color: #7a1520; }
.alert-warning { background: var(--sw-warning-bg); border-color: var(--sw-warning); color: #6b4a00; }

/* ============================================================
   Typography helpers
   ============================================================ */
.text-muted   { color: var(--text-muted); }
.text-blue    { color: var(--sw-blue); }
.text-success { color: var(--sw-success); }
.text-danger  { color: var(--sw-danger); }
.text-sm      { font-size: 0.875rem; }
.text-xs      { font-size: 0.78rem; }
.text-lg      { font-size: 1.1rem; }
.text-xl      { font-size: 1.25rem; }
.text-2xl     { font-size: 1.5rem; }
.font-bold    { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* Page heading area */
.page-hero {
  background: linear-gradient(135deg, var(--sw-dark) 0%, var(--sw-dark-alt) 100%);
  color: #fff;
  padding: 48px 0 40px;
}
.page-hero h1 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  margin: 0;
}

/* ============================================================
   Utility
   ============================================================ */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.w-full { width: 100%; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.hidden { display: none !important; }

/* ============================================================
   Code Blocks (Prism override/complement)
   ============================================================ */
pre[class*="language-"] {
  border-radius: var(--radius);
  margin: 16px 0;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
}
code:not([class]) {
  background: #e8f0f9;
  color: var(--sw-dark-alt);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.85em;
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', Consolas, monospace;
}

/* ============================================================
   Responsive — 768px
   ============================================================ */
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--sw-dark);
    flex-direction: column;
    padding: 12px;
    gap: 4px;
    border-top: 1px solid var(--sw-dark-3);
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 16px; width: 100%; }
  .nav-toggle { display: flex; }
  .container { padding: 0 16px; }
}

/* ============================================================
   Responsive — 480px
   ============================================================ */
@media (max-width: 480px) {
  .page-hero h1 { font-size: 1.4rem; }
  .btn-lg { padding: 11px 20px; font-size: 0.95rem; }
}