/* ========================================
   PAGES.CSS — BLOG STYLES
   For: /blog/*.html (article pages + index)
======================================== */

:root {
  --space-40: 40px;
  --space-48: 48px;
  --space-56: 56px;
  --space-64: 64px;
}

/* ========================================
   BLOG INDEX STYLES
======================================== */

.blog-card__reading-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
}

.blog-card__reading-time svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.blog-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-10);
  gap: var(--space-8);
  flex-wrap: wrap;
}

.blog-card__meta-left {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* ========================================
   ARTICLE LAYOUT
======================================== */

.blog-article {
  background: #12172C;
  padding-top: 80px;
  padding-bottom: 0;
  min-height: 100vh;
}

.article-header {
  max-width: 800px;
  margin: 0 auto var(--space-48);
  padding: 0 var(--space-16);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-16) var(--space-64);
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-lg);
  line-height: 1.7;
}

/* ========================================
   BREADCRUMB
======================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-32);
  margin-top: var(--space-16);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   ARTICLE HEADER
======================================== */

.article-title {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin-bottom: var(--space-24);
  line-height: 1.2;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-40);
  flex-wrap: wrap;
}

.meta-separator {
  color: rgba(255, 255, 255, 0.3);
}

.article-tag {
  padding: 4px 12px;
  background: rgba(2, 153, 235, 0.15);
  border-radius: 12px;
  color: #7fd3ff;
  font-weight: var(--font-weight-medium);
}

.article-featured-image {
  width: 100%;
  border-radius: 18px;
  overflow: hidden;
  margin-bottom: 0;
  box-shadow: 0 18px 40px rgba(2, 9, 31, 0.55);
}

.article-featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   ARTICLE CONTENT ELEMENTS
======================================== */

.article-content p {
  margin-bottom: var(--space-24);
}

.article-content a {
  color: #1ac7ff;
  text-decoration: underline;
  text-decoration-color: rgba(26, 199, 255, 0.3);
  transition: all var(--duration-fast) var(--ease-standard);
}

.article-content a:hover {
  color: #7fd3ff;
  text-decoration-color: rgba(127, 211, 255, 0.5);
}

.article-intro {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-56);
  padding: var(--space-32);
  background: rgba(11, 20, 40, 0.5);
  border-radius: 18px;
  border-left: 4px solid var(--color-primary);
}

.article-intro p {
  margin-bottom: var(--space-20);
}

.article-intro p:last-child {
  margin-bottom: 0;
}

.article-section {
  margin-bottom: var(--space-64);
}

.article-section:last-of-type {
  margin-bottom: 0;
}

.article-section h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: #ffffff;
  margin-bottom: var(--space-32);
  margin-top: 0;
  font-weight: var(--font-weight-bold);
  text-align: center;
}

.article-section h3 {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  color: #ffffff;
  margin-bottom: var(--space-24);
  margin-top: var(--space-32);
  font-weight: var(--font-weight-semibold);
  text-align: center;
}

/* ========================================
   TABLE OF CONTENTS
======================================== */

.article-toc {
  background: rgba(11, 20, 40, 0.6);
  border-radius: 18px;
  padding: var(--space-32);
  margin-bottom: var(--space-56);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-toc h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-24);
  margin-top: 0;
}

.article-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.article-toc li {
  margin-bottom: var(--space-12);
}

.article-toc li:last-child {
  margin-bottom: 0;
}

.article-toc a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-standard);
  display: block;
  padding: var(--space-10);
  border-radius: 8px;
}

.article-toc a:hover {
  color: var(--color-primary);
  background: rgba(2, 153, 235, 0.1);
}

/* ========================================
   REQUIREMENTS GRID
======================================== */

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-24);
  margin: var(--space-40) 0;
}

.requirement-card {
  background: rgba(11, 20, 40, 0.7);
  border-radius: var(--radius-base);
  padding: var(--space-24);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.requirement-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(39, 167, 231, 0.1), transparent);
  transition: left 0.5s;
}

.requirement-card:hover::before {
  left: 100%;
}

.requirement-card:hover {
  border-color: rgba(2, 153, 235, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(2, 9, 31, 0.4);
}

.requirement-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(2, 153, 235, 0.15), rgba(2, 153, 235, 0.05));
  border-radius: 12px;
  margin-bottom: var(--space-16);
  margin-left: auto;
  margin-right: auto;
  color: #1ac7ff;
}

.requirement-icon i {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.requirement-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-12);
  margin-top: 0;
  color: #ffffff;
}

.requirement-card p {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ========================================
   INFO BOX
======================================== */

.info-box {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-24);
  background: rgba(2, 153, 235, 0.08);
  border-radius: 12px;
  border-left: 3px solid var(--color-primary);
  margin: var(--space-40) 0;
}

.info-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.info-icon i {
  width: 24px;
  height: 24px;
  stroke-width: 2;
}

.info-box p {
  margin: 0;
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

/* ========================================
   STEP-BY-STEP GUIDE
======================================== */

.steps-container {
  margin: var(--space-48) 0;
}

.step-item {
  display: flex;
  gap: var(--space-24);
  margin-bottom: var(--space-48);
  position: relative;
}

.step-item:last-child {
  margin-bottom: 0;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 56px;
  width: 2px;
  height: calc(100% - 40px);
  background: linear-gradient(180deg, rgba(2, 153, 235, 0.3), transparent);
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #0299EB, #0275d8);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 153, 235, 0.3);
}

.step-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-12);
  margin-top: 0;
  color: #ffffff;
  text-align: left;
}

.step-content p {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0;
  line-height: 1.7;
}

/* ========================================
   CTA BOX (INTERMEDIATE)
======================================== */

.cta-box {
  background: linear-gradient(135deg, rgba(2, 153, 235, 0.15), rgba(2, 153, 235, 0.05));
  border-radius: var(--radius-base);
  padding: var(--space-40);
  text-align: center;
  margin: var(--space-56) 0;
  border: 1px solid rgba(2, 153, 235, 0.2);
}

.cta-box h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-16);
  margin-top: 0;
  color: #ffffff;
}

.cta-box p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-32);
}

.cta-box .btn.btn--primary,
.final-cta .btn.btn--primary {
  border-radius: 999px;
  padding: clamp(14px, 2.8vw, 18px) clamp(28px, 6vw, 40px);
  font-size: clamp(16px, 2.2vw, 18px);
  font-weight: var(--font-weight-semibold);
  background: linear-gradient(135deg, #1ac7ff 0%, #0299EB 100%);
  color: var(--color-btn-primary-text);
  box-shadow:
    0 10px 28px rgba(2, 153, 235, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  border: none;
  transition: all var(--duration-normal) var(--ease-standard);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  text-decoration: none;
}

.cta-box .btn.btn--primary .svg-icon,
.final-cta .btn.btn--primary .svg-icon {
  width: 1.4em;
  height: 1.4em;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.15));
}

.cta-box .btn.btn--primary:hover,
.final-cta .btn.btn--primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #7fd3ff 0%, #1ac7ff 100%);
  box-shadow:
    0 14px 34px rgba(2, 153, 235, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.cta-box .btn.btn--primary:active,
.final-cta .btn.btn--primary:active {
  transform: translateY(0);
  box-shadow:
    0 8px 18px rgba(2, 153, 235, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.cta-box .btn.btn--primary:focus-visible,
.final-cta .btn.btn--primary:focus-visible {
  outline: none;
  box-shadow:
    var(--focus-ring),
    0 10px 28px rgba(2, 153, 235, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* ========================================
   CRYPTO SECTION
======================================== */

.crypto-section {
  margin: var(--space-48) 0;
}

.crypto-section h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-20);
  margin-top: 0;
  color: #ffffff;
  text-align: center;
}

.crypto-section > p {
  margin-bottom: var(--space-24);
  color: rgba(255, 255, 255, 0.75);
}

.crypto-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.crypto-item {
  background: rgba(11, 20, 40, 0.6);
  padding: var(--space-24);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-16);
  transition: all var(--duration-fast) var(--ease-standard);
  position: relative;
  overflow: hidden;
  min-height: 140px;
}

.crypto-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(39, 167, 231, 0.08), transparent);
  transition: left 0.4s;
}

.crypto-item:hover::before {
  left: 100%;
}

.crypto-item:hover {
  border-color: rgba(2, 153, 235, 0.3);
  transform: translateY(-2px);
}

.crypto-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(2, 153, 235, 0.2), rgba(2, 153, 235, 0.05));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #1ac7ff;
}

.crypto-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

.crypto-details strong {
  color: #ffffff;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.crypto-details span {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-base);
}

.crypto-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  margin-top: var(--space-20);
}

.crypto-tag {
  padding: 8px 16px;
  background: rgba(11, 20, 40, 0.7);
  border: 1px solid rgba(2, 153, 235, 0.2);
  border-radius: 20px;
  color: #7fd3ff;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-fast) var(--ease-standard);
}

.crypto-tag:hover {
  background: rgba(2, 153, 235, 0.15);
  border-color: rgba(2, 153, 235, 0.4);
  transform: translateY(-2px);
}

/* ========================================
   BENEFITS GRID
======================================== */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-24);
  margin: var(--space-48) 0;
}

.benefit-card {
  background: rgba(11, 20, 40, 0.6);
  border-radius: var(--radius-base);
  padding: var(--space-24);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(39, 167, 231, 0.1), transparent);
  transition: left 0.5s;
}

.benefit-card:hover::before {
  left: 100%;
}

.benefit-card:hover {
  border-color: rgba(2, 153, 235, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(2, 9, 31, 0.4);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(2, 153, 235, 0.2), rgba(2, 153, 235, 0.05));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-16);
  margin-left: auto;
  margin-right: auto;
  color: #1ac7ff;
}

.benefit-icon i {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.benefit-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-10);
  margin-top: 0;
  color: #ffffff;
}

.benefit-card p {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ========================================
   WARNING BOX
======================================== */

.warning-box {
  display: flex;
  align-items: center;
  gap: var(--space-20);
  padding: var(--space-24);
  background: rgba(255, 69, 58, 0.08);
  border-radius: 12px;
  border-left: 3px solid #ff453a;
  margin: var(--space-32) 0;
}

.warning-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  color: #ff453a;
  display: flex;
  align-items: center;
  justify-content: center;
}

.warning-icon i {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.warning-content h3 {
  font-size: var(--font-size-lg);
  color: #ffffff;
  margin-bottom: var(--space-12);
  margin-top: 0;
  text-align: left;
}

.warning-content p {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-16);
  line-height: 1.6;
}

.warning-content p:last-child {
  margin-bottom: 0;
}

/* ========================================
   TIPS BOX
======================================== */

.tips-box {
  background: rgba(48, 209, 88, 0.08);
  border-radius: 12px;
  padding: var(--space-32);
  border-left: 3px solid #30d158;
  margin: var(--space-40) 0;
}

.tips-box h3 {
  font-size: var(--font-size-xl);
  color: #ffffff;
  margin-bottom: var(--space-20);
  margin-top: 0;
  text-align: left;
}

.tips-box ul {
  margin: 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.85);
}

.tips-box li {
  margin-bottom: var(--space-12);
  font-size: var(--font-size-base);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: var(--space-12);
}

.tips-box li:last-child {
  margin-bottom: 0;
}

.tips-box li::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2330d158' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

/* ========================================
   FAQ INSIDE ARTICLE
======================================== */

.article-section .faq-container {
  max-width: 100%;
  margin: var(--space-40) 0 0 0;
  counter-reset: faq-counter;
}

.article-section .faq-item {
  background: rgba(11, 20, 40, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  margin-bottom: var(--space-16);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-standard);
  counter-increment: faq-counter;
  position: relative;
}

.article-section .faq-item:hover {
  border-color: rgba(2, 153, 235, 0.2);
  box-shadow: 0 4px 12px rgba(2, 9, 31, 0.3);
}

.article-section .faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: var(--space-20);
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-16);
  transition: color var(--duration-fast) var(--ease-standard);
  border-radius: 18px;
  min-height: 56px;
  user-select: none;
  position: relative;
  z-index: 1;
}

.article-section .faq-question::before {
  content: counter(faq-counter) ". ";
  font-weight: 600;
  color: var(--color-primary);
  margin-right: 8px;
}

.article-section .faq-question:hover,
.article-section .faq-item.active .faq-question {
  color: var(--color-primary);
}

.article-section .faq-toggle {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  transition: transform var(--duration-normal) var(--ease-standard);
  line-height: 1;
  flex-shrink: 0;
  margin-left: var(--space-12);
}

.article-section .faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.article-section .faq-answer {
  padding: 0 var(--space-20);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-standard), padding var(--duration-normal) var(--ease-standard);
  padding-top: 0;
  padding-bottom: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  user-select: text;
  text-align: center;
}

.article-section .faq-item.active .faq-answer {
  padding-top: 8px;
  padding-bottom: 20px;
  max-height: 1000px;
}

.article-section .faq-answer p {
  margin-bottom: 0;
}

/* ========================================
   FINAL CTA + FOOTER GRADIENT TRANSITION
======================================== */

.final-cta {
  background: linear-gradient(360deg, var(--color-charcoal-800) 0%, var(--color-charcoal-700) 100%);
  padding: var(--space-32) 0;
  text-align: center;
  margin: var(--space-64) 0 0 0;
}

.final-cta .container {
  max-width: 600px;
}

.final-cta h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-medium);
  color: #ffffff;
  margin-bottom: var(--space-16);
  margin-top: 0;
}

.final-cta p {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  line-height: 1.6;
}

.final-cta + .footer,
.blog-article .footer {
  background: var(--color-surface);
  padding: var(--space-24) 0;
  margin: 0;
}

.final-cta + .footer .footer-content,
.blog-article .footer .footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-12);
  text-align: center;
}

.final-cta + .footer .footer-links,
.blog-article .footer .footer-links {
  display: flex;
  gap: var(--space-24);
  justify-content: center;
}

.final-cta + .footer .footer-link,
.blog-article .footer .footer-link {
  color: var(--color-text-footer);
  font-size: var(--font-size-base);
  transition: color var(--duration-fast) var(--ease-standard);
}

.final-cta + .footer .footer-link:hover,
.blog-article .footer .footer-link:hover {
  color: var(--color-primary);
}

.final-cta + .footer .footer-copyright,
.blog-article .footer .footer-copyright {
  color: var(--color-text-footer);
  font-size: var(--font-size-sm);
}

.final-cta + .footer .footer-copyright p,
.blog-article .footer .footer-copyright p {
  margin: 0;
}

/* ========================================
   MEDIA QUERIES
======================================== */

@media (max-width: 768px) {
  /* Blog card meta — все элементы в ряд по левому краю */
  .blog-card__meta {
    justify-content: flex-start;
    align-items: center;
  }

  .blog-card__meta-left {
    flex-wrap: nowrap;
  }

  .blog-card__reading-time {
    margin-left: 0;
  }

  /* Warning box — контент по центру в мобильной версии */
  .warning-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-12);
    padding: var(--space-20);
  }

  .warning-content h3 {
    text-align: center;
  }

  .blog-article {
    padding-top: 64px;
  }

  .article-header {
    padding: 0 var(--space-16);
    margin-bottom: var(--space-32);
  }

  .article-content {
    padding: 0 var(--space-16) var(--space-48);
  }

  .article-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: var(--space-16);
  }

  .article-intro {
    font-size: var(--font-size-base);
    padding: var(--space-20);
    margin-bottom: var(--space-40);
  }

  .article-section {
    margin-bottom: var(--space-48);
  }

  .article-section h2 {
    margin-bottom: var(--space-24);
  }

  .requirements-grid {
    grid-template-columns: 1fr;
    gap: var(--space-16);
    margin: var(--space-32) 0;
  }

  .requirement-card {
    padding: var(--space-20);
  }

  .step-item {
    gap: var(--space-16);
    margin-bottom: var(--space-32);
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-lg);
  }

  .step-item:not(:last-child)::after {
    left: 19px;
    top: 48px;
  }

  .step-content h3 {
    font-size: var(--font-size-lg);
  }

  .step-content p {
    font-size: var(--font-size-sm);
  }

  .crypto-grid {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }

  .cta-box {
    padding: var(--space-24);
    margin: var(--space-40) 0;
  }

  .cta-box .btn.btn--primary,
  .final-cta .btn.btn--primary {
    font-size: var(--font-size-base);
    padding: var(--space-16) var(--space-24);
    width: 100%;
    max-width: 100%;
  }

  .final-cta h3 {
    font-size: clamp(1.3rem, 5vw, 1.8rem);
  }

  .final-cta p {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-32);
  }

  .tips-box {
    padding: var(--space-24);
  }

  .article-toc {
    padding: var(--space-24);
    margin-bottom: var(--space-40);
  }
}

@media (max-width: 480px) {
  .article-meta {
    font-size: 11px;
  }

  .article-section h2 {
    font-size: 1.3rem;
  }

  .requirement-card {
    padding: var(--space-16);
  }

  .step-content p {
    font-size: 11px;
  }

  .crypto-tag {
    padding: 6px 12px;
    font-size: 11px;
  }

  .benefit-card {
    padding: var(--space-20);
  }
}

@media (min-width: 834px) and (max-width: 1023px) {
  .requirements-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .requirements-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 769px) {
  .article-header {
    padding: 0;
  }

  .article-content {
    padding-left: 0;
    padding-right: 0;
  }
}