/* ============================================================
   GPAA Restaurant Landing Page
   Mobile-first, orientiert an dtnsoft.de Sprache
   ============================================================ */

:root {
  --color-primary: #0B4F83;
  --color-primary-dark: #083b63;
  --color-primary-light: #e8f0f8;
  --color-accent: #059669;
  --color-accent-light: #d1fae5;
  --color-text: #0f172a;
  --color-text-muted: #64748b;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-border: #d6e0ec;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-success: #065f46;
  --color-success-bg: #d1fae5;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --max-width: 960px;
  --section-gap: 3rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: var(--section-gap) 0;
}

/* ---- Nav ---- */

.nav {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: none;
}

@media (min-width: 600px) {
  .nav-tagline { display: block; }
}

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

.lang-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.3rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: border-color 0.15s, color 0.15s;
}

.lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---- Hero ---- */

.hero {
  background: linear-gradient(135deg, #f0f5ff 0%, #e8f0fe 50%, #fafff7 100%);
  padding: 3rem 0 2.5rem;
  text-align: center;
}

.hero-headline {
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
}

.hero-headline em {
  font-style: normal;
  color: var(--color-primary);
}

.hero-subline {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* ---- Problem ---- */

.problem {
  background: var(--color-bg-alt);
  padding: 1.75rem 0;
}

.problem-text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}

.problem-text strong {
  color: var(--color-primary);
}

/* ---- Steps ---- */

.steps {
  background: var(--color-bg);
}

.section-headline {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.step-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ---- Pricing ---- */

.pricing {
  background: var(--color-bg-alt);
}

.pricing-badge {
  text-align: center;
  margin-bottom: 1.5rem;
}

.pricing-subline {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 0.4rem;
}

.pricing-free-banner {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 0.6rem;
}

.badge-free {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: 999px;
  border: 1px solid #a7f3d0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  max-width: 700px;
  margin: 0 auto;
}

@media (min-width: 560px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.plan-card {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.plan-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.plan-card.featured {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.plan-name {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.plan-price-block {
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
}

.plan-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.plan-period {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.plan-features li {
  font-size: 0.85rem;
  color: var(--color-text);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
}

.plan-features li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05rem;
}

.plan-cta-btn {
  display: block;
  text-align: center;
  background: var(--color-primary);
  color: #fff;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: auto;
}

.plan-cta-btn:hover {
  background: var(--color-primary-dark);
}

/* ---- Form ---- */

#form-section {
  background: var(--color-bg);
}

.form-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  max-width: 580px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}

.form-headline {
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-input {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color 0.15s;
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 480px) {
  .radio-group {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color 0.15s, background 0.15s;
  flex: 1;
  min-width: 100px;
}

.radio-option input[type="radio"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.radio-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.form-submit-btn {
  width: 100%;
  padding: 0.85rem;
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 0.5rem;
  box-shadow: 0 2px 8px rgba(26, 86, 219, 0.2);
}

.form-submit-btn:hover:not(:disabled) {
  background: var(--color-primary-dark);
}

.form-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  display: none;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-top: 1rem;
  text-align: center;
}

#form-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #a7f3d0;
}

#form-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid #fecaca;
}

/* ---- Footer ---- */

.footer {
  background: #111827;
  color: #9ca3af;
  padding: 2rem 0;
  text-align: center;
}

.footer-dsgvo {
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.footer-links {
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
}

.footer-links a:hover {
  color: #fff;
}

.footer-copy {
  font-size: 0.78rem;
  color: #6b7280;
}