/* === BASE STYLES === */:root {
      --color-brand-primary: #0a1628;
      --color-brand-secondary: #0d2144;
      --color-accent-teal: #00e5ff;
      --color-accent-teal-dim: #00b8cc;
      --color-accent-glow: rgba(0, 229, 255, 0.15);
      --color-accent-gold: #ffd700;
      --color-neutral-100: #ffffff;
      --color-neutral-200: #e8f4f8;
      --color-neutral-300: #b0c8d8;
      --color-neutral-400: #7a9bb0;
      --color-neutral-700: #1a3050;
      --color-neutral-800: #0f1e33;
      --color-neutral-900: #060e1a;
      --color-card-bg: rgba(13, 33, 68, 0.85);
      --color-card-border: rgba(0, 229, 255, 0.18);
      --color-success: #00e5a0;
      --spacing-xs: 0.25rem;
      --spacing-sm: 0.5rem;
      --spacing-md: 1rem;
      --spacing-lg: 1.5rem;
      --spacing-xl: 2.5rem;
      --spacing-2xl: 4rem;
      --spacing-3xl: 6rem;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-xl: 32px;
      --shadow-card: 0 8px 32px rgba(0,0,0,0.45), 0 0 0 1px rgba(0,229,255,0.08);
      --shadow-glow: 0 0 32px rgba(0, 229, 255, 0.25);
      --shadow-btn: 0 4px 24px rgba(0, 229, 255, 0.4);
      --font-display: 'Segoe UI', system-ui, -apple-system, sans-serif;
      --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html, body {
      overflow-x: hidden;
      max-width: 100vw;
      background-color: var(--color-brand-primary);
      color: var(--color-neutral-200);
      font-family: var(--font-display);
      line-height: 1.65;
      scroll-behavior: smooth;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-inline: auto;
      padding-inline: var(--spacing-lg);
    }

    /* Utilities */
    .flex { display: flex; }
    .items-center { align-items: center; }
    .justify-between { justify-content: space-between; }
    .gap-2 { gap: 0.5rem; }
    .gap-4 { gap: 1rem; }
    .gap-6 { gap: 1.5rem; }
    .text-center { text-align: center; }
    .text-accent { color: var(--color-accent-teal); }
    .text-gold { color: var(--color-accent-gold); }
    .text-sm { font-size: 0.875rem; }
    .text-lg { font-size: 1.125rem; }
    .font-bold { font-weight: 700; }
    .w-full { width: 100%; }
    .mt-2 { margin-top: 0.5rem; }
    .mt-4 { margin-top: 1rem; }
    .mt-6 { margin-top: 1.5rem; }
    .mb-4 { margin-bottom: 1rem; }
    .mb-6 { margin-bottom: 1.5rem; }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: all var(--transition-base);
      white-space: nowrap;
      letter-spacing: 0.02em;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--color-accent-teal) 0%, var(--color-accent-teal-dim) 100%);
      color: var(--color-brand-primary);
      padding: 0.65rem 1.5rem;
      font-size: 0.95rem;
      box-shadow: var(--shadow-btn);
    }
    .btn-primary:hover {
      transform: translateY(-2px) scale(1.03);
      box-shadow: 0 8px 32px rgba(0, 229, 255, 0.55);
      color: var(--color-brand-primary);
    }

    .btn-hero {
      background: linear-gradient(135deg, var(--color-accent-teal) 0%, #00cfee 100%);
      color: var(--color-brand-primary);
      padding: 1rem 2.5rem;
      font-size: 1.15rem;
      border-radius: var(--radius-lg);
      box-shadow: 0 6px 40px rgba(0, 229, 255, 0.5);
      font-weight: 800;
      letter-spacing: 0.03em;
    }
    .btn-hero:hover {
      transform: translateY(-3px) scale(1.04);
      box-shadow: 0 12px 50px rgba(0, 229, 255, 0.65);
      color: var(--color-brand-primary);
    }

    .btn-outline {
      background: transparent;
      color: var(--color-accent-teal);
      border: 2px solid var(--color-accent-teal);
      padding: 0.65rem 1.5rem;
      font-size: 0.95rem;
    }
    .btn-outline:hover {
      background: var(--color-accent-glow);
      transform: translateY(-2px);
    }

    /* Cards */
    .card {
      background: var(--color-card-bg);
      border: 1px solid var(--color-card-border);
      border-radius: var(--radius-lg);
      padding: var(--spacing-xl);
      box-shadow: var(--shadow-card);
      transition: transform var(--transition-base), box-shadow var(--transition-base);
      backdrop-filter: blur(8px);
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card), var(--shadow-glow);
      border-color: rgba(0, 229, 255, 0.35);
    }

    /* Section headings */
    .section-title {
      font-size: clamp(1.6rem, 4vw, 2.4rem);
      font-weight: 800;
      color: var(--color-neutral-100);
      line-height: 1.2;
      margin-bottom: var(--spacing-lg);
    }
    .section-title span { color: var(--color-accent-teal); }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--color-neutral-300);
      margin-bottom: var(--spacing-xl);
      max-width: 700px;
    }

    /* Divider accent */
    .accent-divider {
      display: block;
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--color-accent-teal), transparent);
      border-radius: 2px;
      margin-bottom: var(--spacing-lg);
    }

    /* Highlight box */
    .highlight-box {
      background: linear-gradient(135deg, rgba(0,229,255,0.07) 0%, rgba(0,180,210,0.04) 100%);
      border: 1px solid rgba(0, 229, 255, 0.22);
      border-radius: var(--radius-md);
      padding: var(--spacing-lg);
      color: var(--color-neutral-200);
    }
    .highlight-box p { margin-bottom: 0; color: var(--color-neutral-300); }
    .highlight-box strong { color: var(--color-accent-teal); }

    /* Feature table */
    .feature-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      font-size: 0.95rem;
    }
    .feature-table thead th {
      background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(0,180,210,0.08));
      color: var(--color-accent-teal);
      font-weight: 700;
      padding: 0.85rem 1.1rem;
      border-bottom: 2px solid rgba(0,229,255,0.2);
      text-align: left;
    }
    .feature-table thead th:first-child { border-radius: var(--radius-sm) 0 0 0; }
    .feature-table thead th:last-child { border-radius: 0 var(--radius-sm) 0 0; }
    .feature-table tbody tr {
      border-bottom: 1px solid rgba(0,229,255,0.07);
      transition: background var(--transition-base);
    }
    .feature-table tbody tr:hover { background: rgba(0,229,255,0.05); }
    .feature-table tbody td {
      padding: 0.8rem 1.1rem;
      color: var(--color-neutral-300);
      vertical-align: middle;
    }
    .feature-table tbody td:first-child { color: var(--color-neutral-100); font-weight: 600; }
    .table-responsive {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-card-border);
    }

    /* Checklist */
    .checklist {
      list-style: none;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
    }
    .checklist li {
      padding-left: 1.75rem;
      position: relative;
      color: var(--color-neutral-300);
    }
    .checklist li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0.35em;
      width: 14px;
      height: 14px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='8' fill='%2300e5ff' opacity='0.18'/%3E%3Cpath d='M4.5 8l2.5 2.5 4.5-4.5' stroke='%2300e5ff' stroke-width='1.8' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
    }

    /* Highlight list */
    .highlight-list {
      list-style: none;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 0.65rem;
    }
    .highlight-list li {
      padding-left: 1.75rem;
      position: relative;
      color: var(--color-neutral-300);
    }
    .highlight-list li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0.45em;
      width: 10px;
      height: 10px;
      background: var(--color-accent-teal);
      border-radius: 50%;
      opacity: 0.7;
    }
    .highlight-list li strong { color: var(--color-neutral-100); }

    /* Feature list (support) */
    .feature-list {
      list-style: none;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
    }
    .feature-list li {
      padding-left: 1.75rem;
      position: relative;
      color: var(--color-neutral-300);
    }
    .feature-list li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0.45em;
      width: 8px;
      height: 8px;
      background: linear-gradient(135deg, var(--color-accent-teal), var(--color-accent-teal-dim));
      border-radius: 50%;
    }
    .feature-list li strong { color: var(--color-accent-teal); }

    /* Definition list */
    .definition-list {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 0.5rem 1.5rem;
      margin-bottom: var(--spacing-md);
    }
    .definition-list dt {
      font-weight: 700;
      color: var(--color-neutral-100);
      white-space: nowrap;
    }
    .definition-list dd {
      color: var(--color-neutral-300);
      margin: 0;
    }

    /* Content images */
    .content-image {
      margin: 0 0 var(--spacing-lg);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-card-border);
    }
    .content-image img {
      width: 100%;
      height: auto;
      display: block;
    }
    .content-image.wide img {}

    /* Accordion */
    .accordion-item {
      background: var(--color-card-bg);
      border: 1px solid var(--color-card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color var(--transition-base);
    }
    .accordion-item:hover { border-color: rgba(0,229,255,0.3); }
    .accordion-header { margin: 0; }
    .accordion-header button {
      width: 100%;
      background: none;
      border: none;
      padding: 1.15rem 1.5rem;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      color: var(--color-neutral-100);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      transition: color var(--transition-base), background var(--transition-base);
    }
    .accordion-header button:hover { color: var(--color-accent-teal); background: rgba(0,229,255,0.04); }
    .accordion-header button::after {
      content: '';
      display: inline-block;
      width: 20px;
      height: 20px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 7l5 5 5-5' stroke='%2300e5ff' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
      flex-shrink: 0;
      transition: transform var(--transition-base);
    }
    .accordion-header button[aria-expanded="true"]::after { transform: rotate(180deg); }
    .accordion-header button[aria-expanded="true"] { color: var(--color-accent-teal); }
    .accordion-body {
      padding: 0 1.5rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
    }
    .accordion-body.open {
      padding: 0 1.5rem 1.15rem;
      max-height: 600px;
    }
    .accordion-body p { color: var(--color-neutral-300); margin: 0; }

    /* KYC block */
    .kyc-block {
      background: linear-gradient(135deg, rgba(0,229,255,0.06), rgba(0,100,150,0.08));
      border: 1px solid rgba(0,229,255,0.15);
      border-radius: var(--radius-md);
      padding: var(--spacing-xl);
      margin-top: var(--spacing-xl);
    }
    .kyc-block h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--color-accent-teal);
      margin-bottom: var(--spacing-md);
    }
    .kyc-block p { color: var(--color-neutral-300); margin-bottom: var(--spacing-md); }
    .kyc-block p:last-child { margin-bottom: 0; }

    /* VPN warning */
    .vpn-warning { border-color: rgba(255,140,0,0.3); background: rgba(255,140,0,0.05); }
    .vpn-warning p { color: var(--color-neutral-300); }

    /* Providers list */
    .providers-list strong { color: var(--color-neutral-100); }

    /* Section spacing */
    section { padding-block: var(--spacing-3xl); }
    section:nth-child(even) { background: var(--color-neutral-800); }
    section p { color: var(--color-neutral-300); margin-bottom: var(--spacing-md); }
    section p:last-child { margin-bottom: 0; }
    section p a { color: var(--color-accent-teal); text-decoration: none; transition: color var(--transition-base); }
    section p a:hover { color: var(--color-accent-gold); }

    h2 {
      font-size: clamp(1.5rem, 3.5vw, 2.2rem);
      font-weight: 800;
      color: var(--color-neutral-100);
      margin-bottom: var(--spacing-lg);
      line-height: 1.25;
    }
    h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-neutral-100);
      margin-bottom: var(--spacing-md);
    }

    /* === LAYOUT STYLES === */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 14, 26, 0.96);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.12);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding-block: 0.9rem;
      flex-wrap: nowrap;
    }

    .logo .logo-text {
      font-size: 1.5rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-accent-teal) 0%, #00cfee 60%, var(--color-accent-gold) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -0.02em;
    }

    .main-nav { display: flex; align-items: center; }
    .nav-list {
      display: flex;
      list-style: none;
      gap: 0.25rem;
      margin: 0;
      padding: 0;
    }
    .nav-list a {
      text-decoration: none;
      color: var(--color-neutral-300);
      font-weight: 500;
      font-size: 0.95rem;
      padding: 0.5rem 0.85rem;
      border-radius: var(--radius-sm);
      transition: color var(--transition-base), background var(--transition-base);
    }
    .nav-list a:hover {
      color: var(--color-accent-teal);
      background: rgba(0,229,255,0.08);
    }

    .cta-button {
      text-decoration: none;
      flex-shrink: 0;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      background: none;
      border: 1px solid rgba(0,229,255,0.3);
      border-radius: var(--radius-sm);
      padding: 0.5rem;
      cursor: pointer;
      width: 40px;
      height: 40px;
      flex-shrink: 0;
    }
    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--color-accent-teal);
      border-radius: 2px;
      transition: all var(--transition-base);
    }
    .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .site-footer {
      background: var(--color-neutral-900);
      border-top: 1px solid rgba(0,229,255,0.1);
      padding-block: var(--spacing-xl);
    }
    .footer-inner {
      display: flex;
      flex-direction: column;
      gap: var(--spacing-lg);
      align-items: center;
      text-align: center;
    }
    .footer-logo .logo-text {
      font-size: 1.3rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-accent-teal), var(--color-accent-gold));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem 1.5rem;
      justify-content: center;
    }
    .footer-nav-list a {
      color: var(--color-neutral-400);
      text-decoration: none;
      font-size: 0.875rem;
      transition: color var(--transition-base);
    }
    .footer-nav-list a:hover { color: var(--color-accent-teal); }
    .footer-disclaimer {
      color: var(--color-neutral-400);
      font-size: 0.8rem;
      line-height: 1.6;
      max-width: 680px;
      margin: 0;
    }

    @media (max-width: 767px) {
      .hamburger { display: flex; }
      .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(6,14,26,0.98);
        border-bottom: 1px solid rgba(0,229,255,0.12);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
      }
      .main-nav.open {
        max-height: 400px;
        padding: 0.75rem 0;
      }
      .nav-list {
        flex-direction: column;
        gap: 0;
        padding-inline: 1rem;
      }
      .nav-list a {
        display: block;
        padding: 0.75rem 1rem;
        font-size: 1rem;
      }
      .header-inner {
        flex-wrap: wrap;
        position: relative;
      }
      .cta-button {
        order: 4;
        width: 100%;
        max-width: 200px;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 0.875rem;
        padding: 0.6rem 1rem;
      }
    }

    @media (min-width: 768px) {
      .hamburger { display: none; }
      .main-nav { position: static; max-height: none; padding: 0; overflow: visible; }
    }

@media (max-width: 767px) {
      .hamburger { display: flex; }
      .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(6,14,26,0.98);
        border-bottom: 1px solid rgba(0,229,255,0.12);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
      }
      .main-nav.open {
        max-height: 400px;
        padding: 0.75rem 0;
      }
      .nav-list {
        flex-direction: column;
        gap: 0;
        padding-inline: 1rem;
      }
      .nav-list a {
        display: block;
        padding: 0.75rem 1rem;
        font-size: 1rem;
      }
      .header-inner {
        flex-wrap: wrap;
        position: relative;
      }
      .cta-button {
        order: 4;
        width: 100%;
        max-width: 200px;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 0.875rem;
        padding: 0.6rem 1rem;
      }
    }

@media (min-width: 768px) {
      .hamburger { display: none; }
      .main-nav { position: static; max-height: none; padding: 0; overflow: visible; }
    }