/* Landing — стиль Telegram: чистый, минималистичный */
:root {
  --bg: #FFFFFF;
  --bg-alt: #F5F7FA;
  --text: #111827;
  --text-secondary: #6B7280;
  --accent: #2AABEE;
  --accent-hover: #229ED9;
  --border: #E5E7EB;
  --card-bg: #FFFFFF;
  --radius: 16px;
  --max-width: 980px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header */
.header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 1.125rem;
}

.logo:hover {
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--accent);
}

.header-cta {
  flex-shrink: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}

.btn-cta,
.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-cta:hover,
.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.125rem;
}

.link-secondary {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.link-secondary:hover {
  color: var(--accent);
}

/* Hero: desktop 2 col (text left, image right), mobile stack */
.hero {
  padding: 48px 16px 56px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 32px;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }
}

@media (max-width: 767px) {
  .hero-inner {
    text-align: center;
  }
}

.hero-content {
  min-width: 0;
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.hero-subtitle {
  margin: 0 0 24px;
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (min-width: 768px) {
  .hero-subtitle {
    max-width: 480px;
  }
}

@media (max-width: 767px) {
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

@media (max-width: 767px) {
  .hero-actions {
    align-items: center;
    width: 100%;
  }
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

@media (max-width: 767px) {
  .hero-badges {
    justify-content: center;
  }
}

.hero-badge {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 4px 10px;
  background: var(--bg-alt);
  border-radius: 999px;
}

.hero-image-wrap {
  min-width: 0;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Sections */
.section {
  padding: 40px 16px;
}

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

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  margin: 0 0 24px;
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card-bubble {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  padding: 20px;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--bg-alt);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.card-title {
  margin: 0 0 8px;
  font-size: 1.125rem;
  font-weight: 600;
}

.card-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.card-hint {
  margin: 8px 0 0;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.card-bullets {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-bullets li {
  margin-bottom: 4px;
}

/* Section Pain: 3 pain cards + 1 solution card */
.section-pain {
  padding: 40px 16px;
}

.cards-pain {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 768px) {
  .cards-pain {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

.pain-solution {
  margin-top: 20px;
}

@media (min-width: 768px) {
  .pain-solution {
    margin-top: 24px;
  }
}

.pain-solution-card {
  border: 1px solid var(--accent);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(42, 171, 238, 0.15);
}

.pain-solution-card .card-bullets {
  margin-top: 8px;
}

/* For who: 3 cols desktop, 1 mobile */
.cards-for-who {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .cards-for-who {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* Feature cards: 2 cols desktop, 1 mobile */
.feature-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .feature-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-card .card-title {
  margin-bottom: 4px;
}

.feature-card .card-text {
  margin: 0;
}

/* Result teaser: image + text */
.result-teaser {
  display: grid;
  gap: 24px;
  align-items: start;
}

@media (min-width: 768px) {
  .result-teaser {
    grid-template-columns: minmax(260px, 420px) 1fr;
  }
}

.result-teaser-image-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.result-teaser-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  display: block;
}

.result-teaser-caption {
  margin: 12px 0 0;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.result-teaser-text {
  min-width: 0;
}

.result-teaser-text p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Report sample (PDF block) */
.report-sample {
  display: grid;
  gap: 24px;
  align-items: start;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

@media (min-width: 768px) {
  .report-sample {
    grid-template-columns: auto 1fr;
  }
}

.report-sample-image-wrap {
  min-width: 0;
}

.report-sample-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.report-sample-bullets {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.report-sample-bullets li {
  margin-bottom: 6px;
}

/* Tariffs */
.tariffs-note {
  text-align: center;
  margin: 0 0 20px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.tariff-card {
  position: relative;
}

.tariff-popular {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(42, 171, 238, 0.12);
}

.tariff-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
}

.tariff-card .card-title {
  margin-top: 0;
  padding-right: 80px;
}

.tariff-card .card-bullets {
  margin-top: 12px;
}

/* FAQ */
.faq {
  max-width: 640px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  background: var(--card-bg);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  padding: 16px 20px;
  text-align: left;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-q::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  margin-left: 8px;
}

.faq-item[data-open] .faq-q::after {
  content: "−";
}

.faq-a {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.faq-item[data-open] .faq-a {
  max-height: 800px;
  padding-bottom: 16px;
}

.faq-a a {
  color: var(--accent);
}

/* CTA section */
.cta-section {
  text-align: center;
  padding: 48px 16px;
}

.cta-final .cta-final-title {
  margin: 0 0 8px;
  font-size: 1.75rem;
  font-weight: 700;
}

.cta-final .cta-final-subtitle {
  margin: 0 0 24px;
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.cta-final .btn {
  margin: 0 auto;
}

/* Sticky CTA: только mobile */
.sticky-cta {
  display: none;
}

@media (max-width: 767px) {
  .sticky-cta {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 12px 16px;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  }

  .sticky-cta-btn {
    width: 100%;
  }

  body {
    padding-bottom: 76px;
  }
}

/* Legal pages */
.legal {
  padding: 32px 16px 48px;
}

.legal-inner {
  max-width: 720px;
  margin: 0 auto;
}

.legal h1 {
  margin: 0 0 24px;
  font-size: 1.75rem;
}

.legal h2 {
  margin: 32px 0 12px;
  font-size: 1.25rem;
}

.legal p,
.legal ul {
  margin: 0 0 16px;
  color: var(--text-secondary);
}

.legal ul {
  padding-left: 1.5rem;
}

.legal code {
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

/* Footer */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-contact,
.footer-disclaimer {
  margin: 4px 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Mobile: CTA в header крупнее на маленьких экранах */
@media (max-width: 767px) {
  .header-cta {
    padding: 10px 16px;
    font-size: 0.9375rem;
  }

  .hero-actions {
    width: 100%;
  }

  .btn-lg {
    width: 100%;
    max-width: 320px;
  }
}