/* ============================================
   Zenify Landing Page — Style
   ============================================ */

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

:root {
  --color-primary: #1B3A5C;
  --color-primary-light: #2A5A8C;
  --color-accent: #D4952B;
  --color-accent-hover: #C07E1A;
  --color-bg: #FAFBFC;
  --color-bg-alt: #F0F3F7;
  --color-bg-dark: #0F1F33;
  --color-text: #1A1A2E;
  --color-text-light: #5A6478;
  --color-border: #E2E6EC;
  --color-white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1120px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 780px; }

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

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 48px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent) 0%, #E8AE4A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(212, 149, 43, 0.3);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(212, 149, 43, 0.4);
  transform: translateY(-1px);
}

.btn--secondary {
  color: var(--color-primary);
  border: 1px solid var(--color-accent);
  box-shadow: 0 2px 8px rgba(212, 149, 43, 0.3);
}
.btn--secondary:hover {
  color: var(--color-bg);
  background: var(--color-accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

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

.btn--small { padding: 10px 20px; font-size: 0.9rem; }
.btn--large { padding: 18px 36px; font-size: 1.1rem; }
.btn--full { width: 100%; }

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  text-decoration: none;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  text-decoration: none;
  color: var(--color-text-light);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--color-primary); }

.nav__links a.btn--primary {
  color: var(--color-bg);
  padding: 10px 22px;
  font-size: 0.9rem;
}

.nav__links a.btn--secondary {
  padding: 10px 22px;
  font-size: 0.9rem;
}

.nav__links a.btn--secondary:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  box-shadow: 0 4px 16px rgba(212, 149, 43, 0.4);
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__mobile-toggle.active span:nth-child(2) { opacity: 0; }
.nav__mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero --- */
.hero {
  padding: 160px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero__badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(27, 58, 92, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-light);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__actions {
  margin: 0 auto 16px;
}

.hero__form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto 16px;
}

.hero__form input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font);
  background: var(--color-white);
  transition: border-color var(--transition);
}
.hero__form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.hero__note {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.hero__screenshot {
  margin-top: 64px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.screenshot-placeholder {
  background: var(--color-white);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 120px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.hero__screenshot img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

/* --- Pain Points --- */
.pain {
  padding: 100px 0;
  text-align: center;
}

.pain__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pain__card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: left;
  transition: all var(--transition);
}
.pain__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.pain__icon { font-size: 2rem; margin-bottom: 16px; }
.pain__card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--color-primary); }
.pain__card p { color: var(--color-text-light); font-size: 0.95rem; line-height: 1.6; }

/* --- Transition --- */
.transition {
  padding: 80px 0;
  text-align: center;
  background: var(--color-bg-alt);
}

.transition__text {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--color-primary);
  font-weight: 600;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.5;
}

.transition__text em {
  font-style: italic;
  color: var(--color-accent);
}

/* --- Features --- */
.features {
  padding: 100px 0;
  text-align: center;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: left;
  transition: all var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27, 58, 92, 0.06);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  color: var(--color-primary);
}

.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--color-primary); }
.feature-card p { color: var(--color-text-light); font-size: 0.92rem; line-height: 1.6; }
.feature-card__link { display: inline-block; margin-top: 12px; font-size: 0.9rem; font-weight: 600; color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
.feature-card__link:hover { color: var(--color-accent-hover); }

/* --- Buchhaltung erklärt (SEO) --- */
.buchhaltung-erklaert {
  padding: 80px 0;
  background: var(--color-white);
}

.buchhaltung-erklaert p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.buchhaltung-erklaert p:last-child {
  margin-bottom: 0;
}

/* --- Comparison --- */
.comparison {
  padding: 100px 0;
  text-align: center;
  background: var(--color-bg-alt);
}

.comparison__table-wrap {
  overflow-x: auto;
  margin-top: 48px;
  -webkit-overflow-scrolling: touch;
}

.comparison__table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 0.95rem;
}

.comparison__table th,
.comparison__table td {
  padding: 16px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.comparison__table th {
  background: var(--color-bg-alt);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison__table th.highlight {
  background: var(--color-primary);
  color: var(--color-white);
}

.comparison__table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--color-primary);
}

.comparison__table td.highlight {
  background: rgba(27, 58, 92, 0.03);
  font-weight: 600;
}

.comparison__table tr:last-child td { border-bottom: none; }

/* --- Pricing --- */
.pricing {
  padding: 100px 0;
  text-align: center;
}

/* Pricing toggle */
.pricing__toggle {
  display: flex;
  justify-content: center;
  gap: 4px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  padding: 4px;
  max-width: 320px;
  margin: 32px auto 0;
}

.pricing__toggle-btn {
  flex: 1;
  padding: 10px 20px;
  border: none;
  border-radius: 50px;
  background: transparent;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pricing__toggle-btn.active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.pricing__save {
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(212, 149, 43, 0.15);
  color: var(--color-accent);
  padding: 2px 8px;
  border-radius: 50px;
}

.pricing__trial {
  background: rgba(212, 149, 43, 0.08);
  border: 1px solid rgba(212, 149, 43, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 24px;
  text-align: center;
}

.pricing__card-note {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--color-text-light);
  text-align: center;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 48px auto 0;
}

.pricing__grid--single {
  grid-template-columns: 1fr;
  max-width: 440px;
}

.pricing__card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: left;
  transition: all var(--transition);
}

.pricing__card--featured {
  border-color: var(--color-accent);
  box-shadow: 0 4px 24px rgba(212, 149, 43, 0.15);
  position: relative;
}

.pricing__badge {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.pricing__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.pricing__currency { font-size: 1.1rem; font-weight: 600; color: var(--color-text-light); }
.pricing__amount { font-size: 3rem; font-weight: 800; color: var(--color-primary); line-height: 1; }
.pricing__period { font-size: 1rem; color: var(--color-text-light); }

.pricing__desc {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.pricing__features {
  list-style: none;
  margin-bottom: 32px;
}
.pricing__features li {
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--color-text);
}

.pricing__note {
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-style: italic;
}

/* --- About --- */
.about {
  padding: 100px 0;
  text-align: center;
  background: var(--color-bg-alt);
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.about__card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.about__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.about__icon { font-size: 2.4rem; margin-bottom: 20px; }
.about__card h3 { font-size: 1.1rem; color: var(--color-primary); margin-bottom: 12px; }
.about__card p { font-size: 0.92rem; color: var(--color-text-light); line-height: 1.6; }

/* --- Proof --- */
.proof {
  padding: 80px 0;
}

.proof__banner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

.proof__stat { text-align: center; }

.proof__number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 4px;
}

.proof__label {
  display: block;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.proof__divider {
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
}

/* --- FAQ --- */
.faq {
  padding: 100px 0;
  text-align: center;
}

.faq__list {
  margin-top: 48px;
  text-align: left;
}

.faq__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  background: var(--color-white);
  overflow: hidden;
  transition: all var(--transition);
}
.faq__item:hover { border-color: var(--color-primary-light); }

.faq__item[open] {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-accent);
}

.faq__item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq__item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text-light);
  transition: transform var(--transition);
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item summary::-webkit-details-marker { display: none; }

.faq__item p {
  padding: 0 24px 20px;
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- CTA --- */
.cta {
  padding: 100px 0;
  background: var(--color-bg-dark);
}

.cta__inner {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta__subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 36px;
}

.cta__form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto 16px;
}

.cta__form input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  transition: border-color var(--transition);
}
.cta__form input::placeholder { color: rgba(255, 255, 255, 0.4); }
.cta__form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.cta__note {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 24px;
  color: rgba(255, 255, 255, 0.6);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand .logo-text { color: var(--color-white); margin-bottom: 12px; display: block; }
.footer__brand p { font-size: 0.9rem; line-height: 1.6; }

.footer__links { display: flex; gap: 64px; }

.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 4px;
}
.footer__col a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--color-white); }

.footer__bottom {
  padding-top: 24px;
  font-size: 0.82rem;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav__links.open { display: flex; }
  .nav__mobile-toggle { display: flex; }

  .hero { padding: 120px 0 60px; }
  .hero__form { flex-direction: column; }

  .pain__grid { grid-template-columns: 1fr; }
  .features__grid { grid-template-columns: 1fr; }
  .about__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; max-width: 400px; }

  .comparison__table { font-size: 0.82rem; }
  .comparison__table th,
  .comparison__table td { padding: 12px 14px; }

  .proof__banner {
    flex-direction: column;
    gap: 32px;
    padding: 36px 24px;
  }
  .proof__divider { width: 48px; height: 1px; }

  .cta__form { flex-direction: column; }

  .footer__inner { flex-direction: column; gap: 32px; }
  .footer__links { flex-wrap: wrap; gap: 32px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .pricing__amount { font-size: 2.4rem; }
}