:root {
  --bg-body: #0b1a2d;
  --bg-header: #081324;
  --bg-panel: #13273e;
  --bg-panel-alt: #18314c;
  --bg-card: #1c3854;
  --border-color: #234360;
  --border-highlight: #2c5174;
  --text-white: #ffffff;
  --text-main: #b3cadc;
  --text-muted: #6e8fa8;
  --green-main: #5cb82a;
  --green-hover: #69c730;
  --blue-main: #0073e6;
  --blue-hover: #1a85f2;
  --cyan-accent: #38b0f8;
  --font:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --radius: 3px;
}

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

body {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  padding-bottom: 60px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

a {
  text-decoration: none;
  color: inherit;
}

/* SVG Icon Utility */
.icon {
  display: inline-block;
  width: 18px;
  height: 18px;
  fill: currentColor;
  vertical-align: middle;
}

/* HEADER */
.top-header {
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.5px;
}

.brand-logo .box {
  background: var(--blue-main);
  color: #fff;
  padding: 2px 8px;
  border-radius: 2px;
}

.brand-logo .text {
  color: var(--cyan-accent);
}

.main-nav {
  display: flex;
  gap: 2px;
  height: 100%;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 0 14px;
  color: var(--text-main);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  border-bottom: 3px solid transparent;
  transition: all 0.15s;
}

.nav-item:hover,
.nav-item.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.03);
  border-bottom-color: var(--blue-main);
}

.header-auth {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.5px;
}

.btn-green {
  background: linear-gradient(180deg, #62c72e 0%, #4ea820 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(92, 184, 42, 0.3);
}
.btn-green:hover {
  background: var(--green-hover);
}

.btn-blue {
  background: linear-gradient(180deg, #0080f6 0%, #0062cc 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 115, 230, 0.3);
}
.btn-blue:hover {
  background: var(--blue-hover);
}

/* SUB-NAV BAR */
.sub-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 0;
  margin-bottom: 20px;
}

.sub-bar-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.sub-tab {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 8px 14px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s;
}

.sub-tab:hover {
  border-color: var(--cyan-accent);
  background: var(--bg-card);
}

/* MAIN LAYOUT STRUCTURE */
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-title-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px 24px;
}

h1.page-h1 {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

/* STATS DASHBOARD MODULE */
.stats-matrix {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.stat-tile {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s;
}

.stat-tile:hover {
  border-color: var(--blue-main);
}

.stat-tile .num {
  color: var(--cyan-accent);
  font-size: 18px;
  font-weight: 900;
}

.stat-tile .label {
  color: var(--text-main);
  font-size: 12px;
  line-height: 1.4;
}

/* CONTENT SECTIONS */
.section {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

h2 {
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: var(--blue-main);
}

p.paragraph {
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* TOC MODULE */
.toc-box {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 20px 0;
}

.toc-title {
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  list-style: none;
}

.toc-grid a {
  color: var(--cyan-accent);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}

.toc-grid a:hover {
  color: #fff;
}

/* FEATURE CARDS */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 16px 0;
}

.feature-card {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all 0.2s;
}

.feature-card:hover {
  border-color: var(--border-highlight);
  background: var(--bg-card);
}

.feature-icon-box {
  width: 36px;
  height: 36px;
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan-accent);
  flex-shrink: 0;
}

.feature-title {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-desc {
  color: var(--text-main);
  font-size: 13px;
  line-height: 1.5;
}

/* STEP BY STEP TIMELINE MODULE */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0;
}

.step-card {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--blue-main);
  border-radius: var(--radius);
  padding: 20px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.step-number {
  background: var(--blue-main);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  width: 24px;
  height: 24px;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-title {
  color: #fff;
  font-size: 15px;
  font-weight: 800;
}

.sub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.sub-card {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13px;
}

.sub-card strong {
  color: #fff;
  display: block;
  margin-bottom: 2px;
}

.custom-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 20px 0;
}

.custom-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: var(--text-main);
  line-height: 1.6;
}

.custom-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  background: var(--blue-main);
  border-radius: 1px;
}

/* PAYMENT METHODS FOOTER BLOCK */
.payments-footer {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.payments-title {
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.payments-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.pay-badge {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 8px 14px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s;
}

.pay-badge:hover {
  border-color: var(--cyan-accent);
}

/* FOOTER BAR */
.footer-bar {
  background: var(--bg-header);
  border-top: 1px solid var(--border-color);
  padding: 30px 0 20px 0;
  margin-top: 40px;
  font-size: 12px;
}

.copyright-text {
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* STICKY BOTTOM BAR FOR MOBILE */
.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-header);
  border-top: 1px solid var(--border-color);
  padding: 10px 16px;
  z-index: 1000;
  display: none;
}

.mobile-bar-inner {
  display: flex;
  gap: 10px;
  max-width: 500px;
  margin: 0 auto;
}

.mobile-bar .btn-action {
  flex: 1;
  padding: 12px;
}

@media (max-width: 992px) {
  .stats-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
  .toc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .stats-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .sub-grid {
    grid-template-columns: 1fr;
  }
  .toc-grid {
    grid-template-columns: 1fr;
  }
  .mobile-bar {
    display: block;
  }
}

@media (max-width: 480px) {
  .stats-matrix {
    grid-template-columns: 1fr;
  }
}

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