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

:root {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-brand: 'Montserrat', sans-serif;
  
  --color-primary: #8b4513;    /* Saddle Brown */
  --color-secondary: #d4af37;  /* Gold */
  --color-accent: #a0522d;     /* Sienna */
  --color-dark: #1c1917;       /* Stone 900 */
  --color-light: #fafaf9;      /* Stone 50 */
  --color-muted: #78716c;      /* Stone 500 */
  --color-white: #ffffff;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  --max-width: 1200px;
}

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

html {
  font-family: var(--font-main);
  background-color: var(--color-light);
  color: var(--color-dark);
  line-height: 1.5;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3 {
  font-family: var(--font-brand);
  text-transform: uppercase;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a:hover {
  opacity: 0.8;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 3px;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

header {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  font-family: var(--font-brand);
  color: var(--color-secondary);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 600;
}

/* Hero Section */
.hero {
  background: radial-gradient(circle at center, #2c1810 0%, #1c1917 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-light);
  opacity: 0.9;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  font-family: var(--font-brand);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  min-height: 48px;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-dark);
  box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px var(--color-secondary);
  opacity: 1;
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-dark);
  opacity: 1;
}

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

.btn[disabled],
.btn.is-loading {
  cursor: not-allowed;
  opacity: 0.72;
  transform: none;
  box-shadow: none;
}

/* Sections */
section {
  padding: var(--spacing-xl) 0;
}

section h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-dark);
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card.featured {
  border: 2px solid var(--color-secondary);
  position: relative;
}

.card.featured::before {
  content: 'NAJCZĘŚCIEJ WYBIERANY';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-secondary);
  color: var(--color-dark);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 99px;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
}

.card .price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.card ul {
  list-style: none;
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

.card li {
  padding: var(--spacing-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.9375rem;
}

.card li::before {
  content: '✓';
  color: var(--color-secondary);
  font-weight: 800;
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-sm);
}

input[type="email"] {
  width: 100%;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 2px solid #e7e5e4;
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color 0.2s;
}

input[type="email"]:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgb(212 175 55 / 0.15);
}

input[type="email"]:invalid:not(:placeholder-shown) {
  border-color: #dc2626;
}

.field-error {
  display: block;
  min-height: 1.25rem;
  margin-top: 0.375rem;
  color: #b91c1c;
  font-size: 0.875rem;
}

.consent-label {
  display: flex;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  margin: var(--spacing-sm) 0;
  cursor: pointer;
  color: var(--color-muted);
}

/* Beta Section */
.beta-section {
  background: var(--color-dark);
  color: var(--color-white);
  text-align: center;
}

.beta-section h2 {
  color: var(--color-white);
}

.beta-card {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

/* Footer */
footer {
  margin-top: auto;
  padding: var(--spacing-lg) 0;
  background: var(--color-dark);
  color: var(--color-muted);
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
  font-weight: 600;
}

.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 3rem; }
  .pricing-grid { grid-template-columns: 1fr; }
  section { padding: var(--spacing-lg) 0; }
  .card { padding: var(--spacing-md); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--spacing-sm); }
  .hero { padding: var(--spacing-lg) 0; }
  .hero p { font-size: 1rem; }
  section h2 { font-size: 2rem; }
  .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}