/* ============================================
   SalonStoreAI Demo Portal - Styles
   ============================================ */

/* CSS Variables */
:root {
  /* Primary Gradient - Teal/Green */
  --color-primary-start: #10b981;
  --color-primary-end: #06b6d4;
  --color-primary: #10b981;

  /* Secondary - Indigo */
  --color-secondary: #4f46e5;
  --color-secondary-light: #6366f1;

  /* WhatsApp Green */
  --color-whatsapp: #25D366;
  --color-whatsapp-dark: #128C7E;

  /* Neutrals - LIGHT THEME */
  --color-bg: #ffffff;
  --color-bg-light: #f9fafb;
  --color-bg-card: #ffffff;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;

  /* Button Colors */
  --color-btn-primary: #000000;
  --color-btn-primary-hover: #374151;

  /* Status */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-glow: 0 0 40px rgba(16, 185, 129, 0.15);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, white, rgba(16, 185, 129, 0.03) 50%, white);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

a {
  color: inherit;
  text-decoration: none;
}

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

.hidden {
  display: none !important;
}

/* ============================================
   Demo Banner
   ============================================ */
.demo-banner {
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  color: white;
  padding: var(--space-sm) var(--space-md);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.demo-banner__icon {
  font-size: var(--font-size-lg);
}

/* ============================================
   Site Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.site-header__logo,
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.logo-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
}

.logo-accent {
  color: var(--color-primary);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-xs);
}

.lang-switch {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 36px;
}

.lang-switch:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.05);
}

.lang-switch--active {
  color: white;
  background: var(--color-btn-primary);
}

.lang-switch--active:hover {
  color: white;
  background: var(--color-btn-primary-hover);
}

.site-header__nav {
  display: flex;
  gap: var(--space-xl);
}

.site-header__nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding: var(--space-3xl) 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Phone Mockup */
.hero__visual {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  background: var(--color-bg-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  max-width: 320px;
  width: 100%;
}

.phone-mockup__screen {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.chat-bubble {
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  max-width: 85%;
}

.chat-bubble--incoming {
  background: white;
  border: 1px solid var(--color-border);
  align-self: flex-start;
  border-bottom-left-radius: var(--radius-sm);
}

.chat-bubble--outgoing {
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: var(--radius-sm);
}

.chat-bubble em {
  opacity: 0.8;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn__icon {
  width: 1.25em;
  height: 1.25em;
}

.btn--primary {
  background: var(--color-btn-primary);
  color: white;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
}

.btn--primary:hover {
  background: var(--color-btn-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn--secondary {
  background: white;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.btn--secondary:hover {
  background: var(--color-bg-light);
  border-color: var(--color-text-muted);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--whatsapp {
  background: var(--color-whatsapp);
  color: white;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn--whatsapp:hover {
  background: var(--color-whatsapp-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn--whatsapp svg {
  width: 1.5em;
  height: 1.5em;
}

.btn--large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--font-size-lg);
}

.btn--small {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: var(--space-3xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
}

/* ============================================
   How It Works - Steps
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.step-card__number {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: white;
}

.step-card__icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-md);
}

.step-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.step-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.step-card__action {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.copy-feedback {
  font-size: var(--font-size-xs);
  color: var(--color-success);
  font-weight: 500;
}

/* ============================================
   WhatsApp Section
   ============================================ */
.whatsapp-section {
  background: linear-gradient(180deg, transparent, rgba(16, 185, 129, 0.03));
}

.whatsapp-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2xl);
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.whatsapp-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.whatsapp-icon {
  width: 48px;
  height: 48px;
  background: var(--color-whatsapp);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.whatsapp-icon svg {
  width: 28px;
  height: 28px;
}

.whatsapp-card__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.whatsapp-card__description {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.whatsapp-card__examples {
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.whatsapp-card__examples h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

.whatsapp-card__examples ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.whatsapp-card__examples li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
}

.whatsapp-card__examples code {
  background: white;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: 'Monaco', 'Menlo', monospace;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.tag {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-light));
  color: white;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.whatsapp-card__qr {
  text-align: center;
}

.qr-container {
  background: white;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  display: inline-block;
}

.qr-container canvas {
  display: block;
}

.qr-hint {
  margin-top: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ============================================
   Test Notice
   ============================================ */
.notice-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.notice-card__icon {
  font-size: var(--font-size-4xl);
  flex-shrink: 0;
}

.notice-card__content h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.notice-card__content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.notice-card__content ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.notice-card__content li {
  font-size: var(--font-size-sm);
  padding-left: var(--space-lg);
  position: relative;
}

.notice-card__content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.notice-card__disclaimer {
  background: white;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* ============================================
   Products Section
   ============================================ */
.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  align-items: center;
}

.search-input {
  position: relative;
  flex: 1;
  min-width: 250px;
  max-width: 400px;
}

.search-input__icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
}

.search-input input {
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-md) calc(var(--space-md) + 28px);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.search-input input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.search-input input::placeholder {
  color: var(--color-text-muted);
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

/* Filter Dropdowns */
.filter-dropdowns {
  display: flex;
  gap: var(--space-md);
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  align-items: center;
}

.filter-dropdown {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-dropdown label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-dropdown select {
  padding: var(--space-sm) var(--space-md);
  padding-right: calc(var(--space-md) + 20px);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-family: inherit;
  min-width: 160px;
  cursor: pointer;
  transition: all var(--transition-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-sm) center;
}

.filter-dropdown select:hover {
  border-color: var(--color-primary);
}

.filter-dropdown select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.filter-dropdown select option {
  background: white;
  color: var(--color-text);
}

.filter-tab {
  padding: var(--space-sm) var(--space-md);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.filter-tab.active {
  background: var(--color-btn-primary);
  border-color: transparent;
  color: white;
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}

.product-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.product-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.product-card__name {
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.3;
  flex: 1;
}

.product-card__brand {
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  font-weight: 500;
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.product-card__details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.product-card__detail {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.product-card__detail strong {
  color: var(--color-text);
}

.product-card__ean {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-family: 'Monaco', 'Menlo', monospace;
}

/* Compact Product Card */
.product-card--compact {
  padding: var(--space-md);
}

.product-card--compact .product-card__name {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
}

.product-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.product-card__size {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.product-card__sizes {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Skeleton Loading */
.product-card--skeleton {
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg,
    #f3f4f6 25%,
    #e5e7eb 50%,
    #f3f4f6 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

.skeleton--title {
  height: 24px;
  width: 80%;
  margin-bottom: var(--space-md);
}

.skeleton--text {
  height: 16px;
  width: 100%;
  margin-bottom: var(--space-sm);
}

.skeleton--short {
  width: 60%;
}

@keyframes skeleton-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* No Results */
.no-results {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.no-results__icon {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-md);
}

.no-results h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

/* Products Count */
.products-count {
  margin-top: var(--space-lg);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ============================================
   Feedback Form
   ============================================ */
.feedback-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.required {
  color: var(--color-error);
}

.optional {
  color: var(--color-text-muted);
  font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.feedback-form .btn {
  width: 100%;
}

.form-status {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 500;
}

.form-status--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-status--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
}

.site-footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.site-footer__tagline {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.site-footer__links {
  display: flex;
  gap: var(--space-xl);
}

.site-footer__links a {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.site-footer__bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.site-footer__bottom p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .whatsapp-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .whatsapp-card__header {
    justify-content: center;
  }

  .notice-card__content ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }

  .site-header__nav {
    display: none;
  }

  .lang-switcher {
    padding: 2px;
  }

  .lang-switch {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
    min-width: 32px;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

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

  .notice-card {
    flex-direction: column;
    text-align: center;
  }

  .filters-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-input {
    max-width: none;
  }

  .filter-tabs,
  .filter-chips {
    justify-content: center;
  }

  .filter-dropdowns {
    flex-direction: row;
    width: 100%;
    justify-content: center;
  }

  .filter-dropdown {
    flex: 1;
    max-width: 200px;
  }

  .filter-dropdown select {
    width: 100%;
    min-width: auto;
  }

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

  .site-footer__content {
    flex-direction: column;
    text-align: center;
  }

  .site-footer__links {
    flex-direction: column;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .btn--large {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
  }

  .whatsapp-card {
    padding: var(--space-lg);
  }

  .feedback-form {
    padding: var(--space-lg);
  }
}

/* ============================================
   Wizard Layout
   ============================================ */
.wizard {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 120px);
}

/* Progress Indicator */
.wizard__progress {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 65px;
  z-index: 50;
}

.progress-bar {
  height: 4px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  opacity: 0.5;
  transition: all var(--transition-base);
}

.progress-step:hover:not(:disabled) {
  opacity: 0.8;
}

.progress-step:disabled {
  cursor: not-allowed;
}

.progress-step--active,
.progress-step--completed {
  opacity: 1;
}

.progress-step__number {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-bg-light);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: all var(--transition-base);
}

.progress-step--active .progress-step__number {
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
  border-color: transparent;
  color: white;
}

.progress-step--completed .progress-step__number {
  background: var(--color-success);
  border-color: transparent;
  color: white;
}

.progress-step__label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.progress-step--active .progress-step__label {
  color: var(--color-text);
}

.progress-step--completed .progress-step__label {
  color: var(--color-success);
}

/* Panel Container */
.wizard__panels {
  flex: 1;
  padding: var(--space-2xl) 0;
}

.wizard__panel {
  display: none;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.wizard__panel--active {
  display: block;
  opacity: 1;
  transform: translateX(0);
}

/* Navigation */
.wizard__nav {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  bottom: 0;
  z-index: 50;
}

.wizard__nav .container {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
}

.wizard__back,
.wizard__next {
  min-width: 120px;
}

.wizard__back:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ============================================
   Step Content Styles
   ============================================ */
.step-content {
  max-width: 800px;
  margin: 0 auto;
}

.step-content--products {
  max-width: 100%;
}

.step-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.step-header--compact {
  margin-bottom: var(--space-lg);
}

.step-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.step-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
}

.step-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

/* Step 1: Connect */
.whatsapp-icon--large {
  width: 64px;
  height: 64px;
  background: var(--color-whatsapp);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin: 0 auto var(--space-lg);
}

.whatsapp-icon--large svg {
  width: 36px;
  height: 36px;
}

.connect-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.connect-qr {
  text-align: center;
}

.connect-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.phone-number-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.phone-number-card label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.phone-number-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.phone-number {
  font-size: var(--font-size-xl);
  font-weight: 600;
  font-family: 'Monaco', 'Menlo', monospace;
}

.btn--full {
  width: 100%;
}

.enterprise-note {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.enterprise-note__icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.enterprise-note p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.enterprise-note strong {
  color: var(--color-text);
}

/* Step 2: Test Ideas Grid */
.test-ideas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.test-idea-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.test-idea-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.test-idea-card__icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-sm);
}

.test-idea-card h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.test-idea-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.test-idea-card code {
  background: var(--color-bg-light);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.demo-disclaimer {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-warning);
}

.demo-disclaimer strong {
  color: inherit;
}

/* Step 4: Feedback Final CTA */
.final-cta {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.final-cta p {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* ============================================
   Wizard Responsive
   ============================================ */
@media (max-width: 768px) {
  .wizard__progress {
    padding: var(--space-md) 0;
    top: 57px;
  }

  .progress-step__label {
    display: none;
  }

  .progress-step__number {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-xs);
  }

  .connect-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .connect-qr {
    order: -1;
  }

  .phone-number-row {
    flex-direction: column;
    align-items: stretch;
  }

  .phone-number {
    text-align: center;
    margin-bottom: var(--space-sm);
  }

  .test-ideas-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .enterprise-note {
    flex-direction: column;
    text-align: center;
  }

  .wizard__nav .container {
    flex-direction: row;
  }

  .wizard__back,
  .wizard__next {
    flex: 1;
  }
}

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

  .step-title {
    font-size: var(--font-size-2xl);
  }
}