/* ===========================
       CSS CUSTOM PROPERTIES
    =========================== */
    :root {
      --navy-950: #020817;
      --navy-900: #0a1628;
      --navy-800: #0f2040;
      --navy-700: #142850;
      --navy-600: #1a3460;
      --blue-500: #1e6ab4;
      --blue-400: #2980d4;
      --blue-300: #4fa3e8;
      --blue-200: #93c5fd;
      --blue-100: #dbeafe;
      --accent: #06b6d4;
      --accent-light: #22d3ee;
      --white: #ffffff;
      --gray-50: #f8fafc;
      --gray-100: #f1f5f9;
      --gray-200: #e2e8f0;
      --gray-300: #cbd5e1;
      --gray-400: #94a3b8;
      --gray-500: #64748b;
      --gray-600: #475569;
      --gray-700: #334155;
      --gray-800: #1e293b;
      --success: #10b981;
      --warning: #f59e0b;
      --error: #ef4444;
      --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
      --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
      --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
      --shadow-xl: 0 20px 60px rgba(0,0,0,0.6);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
    }

    /* ===========================
       RESET & BASE
    =========================== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: 'Inter', sans-serif;
      background: var(--navy-950);
      color: var(--white);
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
    }
    img { max-width: 100%; display: block; }
    a { color: var(--blue-300); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--accent-light); }
    button { cursor: pointer; font-family: 'Inter', sans-serif; border: none; outline: none; }
    button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
    ul, ol { list-style: none; }
    h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.2; }
    code, .mono { font-family: 'JetBrains Mono', monospace; }

    /* ===========================
       SCROLLBAR
    =========================== */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: var(--navy-900); }
    ::-webkit-scrollbar-thumb { background: var(--blue-500); border-radius: 99px; }

    /* ===========================
       UTILITY
    =========================== */
    .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
    .text-accent { color: var(--accent); }
    .text-blue { color: var(--blue-300); }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 12px; border-radius: 99px;
      font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
    }
    .badge-success { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
    .badge-info { background: rgba(6,182,212,0.15); color: var(--accent); border: 1px solid rgba(6,182,212,0.3); }
    .badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
    .badge-error { background: rgba(239,68,68,0.15); color: var(--error); border: 1px solid rgba(239,68,68,0.3); }

    /* ===========================
       ADSENSE PLACEHOLDERS
    =========================== */
    .adsense-placeholder {
      width: 100%; min-height: 90px; border: 2px dashed rgba(100,116,139,0.4);
      border-radius: var(--radius-md); background: rgba(15,32,64,0.5);
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 4px; padding: 16px; text-align: center; color: var(--gray-500);
    }
    .adsense-placeholder .ad-label { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-600); }
    .adsense-placeholder .ad-title { font-size: 0.8rem; color: var(--gray-500); }
    .adsense-placeholder-inline {
      width: 100%; min-height: 250px;
    }

    /* ===========================
       HEADER / NAVBAR
    =========================== */
    #site-header {
      position: sticky; top: 0; z-index: 1000;
      background: rgba(2,8,23,0.92); backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255,255,255,0.08);
      transition: box-shadow var(--transition);
    }
    #site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
    .header-inner {
      display: flex; align-items: center; justify-content: space-between;
      height: 64px;
      width: min(1180px, calc(100% - 32px));
      padding: 0; margin: 0 auto; gap: 22px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; text-decoration: none;
    }
    .logo-icon {
      width: 38px; height: 38px; border-radius: 10px;
      background: linear-gradient(135deg, var(--blue-500), var(--accent));
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem; color: white; flex-shrink: 0;
      box-shadow: 0 0 20px rgba(6,182,212,0.4);
    }
    .logo-text { font-size: 1.1rem; font-weight: 800; color: var(--white); line-height: 1.1; }
    .logo-text span { color: var(--accent); }
    .logo-sub { font-size: 0.65rem; color: var(--gray-400); font-weight: 400; letter-spacing: 0.05em; }
    /* Fallback navigation: exact desktop spacing from network-tools/index.html.
       The visible shared header is provided by /assets/fastip-nav.js. */
    .main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
    .main-nav a {
      padding: 10px 11px; border-radius: 10px;
      font-size: .82rem; font-weight: 700; color: var(--gray-300);
      transition: all var(--transition); white-space: nowrap;
    }
    .main-nav a:hover { color: #06b6d4; background: rgba(6,182,212,.07); }
    .main-nav .nav-btn {
      padding: 10px 11px; border-radius: 10px;
      background: transparent;
      color: var(--gray-300) !important; font-weight: 700; font-size: .82rem;
      box-shadow: none; transform: none; opacity: 1;
    }
    .main-nav .nav-btn:hover { background: rgba(6,182,212,.07); color: #06b6d4 !important; box-shadow: none; transform: none; opacity: 1; }
    @media (max-width: 1050px) {
      .main-nav { display: none; }
      .hamburger { display: flex; }
      .header-actions { margin-left: auto; }
    }
    .hamburger {
      display: none; flex-direction: column; gap: 5px; padding: 8px;
      background: none; border-radius: var(--radius-sm);
    }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-300); border-radius: 2px; transition: all var(--transition); }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .mobile-nav {
      display: none; flex-direction: column; gap: 2px; padding: 12px 20px 16px;
      border-top: 1px solid rgba(255,255,255,0.08);
      background: rgba(2,8,23,0.98);
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav a {
      padding: 10px 14px; border-radius: var(--radius-sm);
      font-size: 0.9rem; font-weight: 500; color: var(--gray-300);
      transition: all var(--transition);
    }
    .mobile-nav a:hover { color: var(--white); background: rgba(255,255,255,0.08); }

    /* ===========================
       HERO SECTION
    =========================== */
    #hero {
      position: relative; overflow: hidden;
      background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-950) 60%, #050d1f 100%);
      padding: 80px 20px 60px;
    }
    .hero-bg {
      position: absolute; inset: 0; pointer-events: none;
      background:
        radial-gradient(ellipse 60% 40% at 70% 20%, rgba(30,106,180,0.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 50% at 20% 80%, rgba(6,182,212,0.1) 0%, transparent 70%);
    }
    .hero-grid-bg {
      position: absolute; inset: 0; pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 100%);
    }
    .hero-inner {
      position: relative; z-index: 1;
      max-width: 1200px; margin: 0 auto;
      display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 6px 16px; border-radius: 99px;
      background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.3);
      font-size: 0.78rem; font-weight: 600; color: var(--accent); letter-spacing: 0.06em; text-transform: uppercase;
    }
    .hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse-dot 2s ease-in-out infinite; }
    @keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.8)} }
    .hero-title {
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 800; line-height: 1.1;
      background: linear-gradient(135deg, #ffffff 0%, #93c5fd 50%, var(--accent) 100%);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    }
    .hero-subtitle { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--gray-300); max-width: 640px; font-weight: 400; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
    .btn-primary {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 12px 28px; border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--blue-500), var(--accent));
      color: white; font-weight: 700; font-size: 0.95rem;
      transition: all var(--transition); border: none;
      box-shadow: 0 4px 20px rgba(6,182,212,0.35);
    }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(6,182,212,0.5); color: white; }
    .btn-secondary {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 12px 28px; border-radius: var(--radius-md);
      background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
      color: var(--gray-200); font-weight: 600; font-size: 0.95rem;
      transition: all var(--transition);
    }
    .btn-secondary:hover { background: rgba(255,255,255,0.14); color: white; transform: translateY(-2px); }
    .hero-stats {
      display: flex; gap: 40px; flex-wrap: wrap; justify-content: center; padding-top: 10px;
    }
    .hero-stat { text-align: center; }
    .hero-stat-num { font-size: 1.6rem; font-weight: 800; color: var(--accent); }
    .hero-stat-label { font-size: 0.75rem; color: var(--gray-400); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

    /* ===========================
       ADSENSE TOP BANNER
    =========================== */
    .ad-banner-wrap { background: var(--navy-900); padding: 12px 20px; border-bottom: 1px solid rgba(255,255,255,0.06); }

    /* ===========================
       SECTION BASE
    =========================== */
    section { padding: 60px 0; }
    .section-label {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 4px 14px; border-radius: 99px;
      background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.25);
      font-size: 0.72rem; font-weight: 700; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-title { font-size: clamp(1.5rem, 3vw, 2.2rem); color: var(--white); margin-bottom: 10px; }
    .section-subtitle { color: var(--gray-400); font-size: 1rem; max-width: 540px; }
    .section-header { margin-bottom: 40px; }
    .section-header.center { text-align: center; display: flex; flex-direction: column; align-items: center; }

    /* ===========================
       IP DASHBOARD
    =========================== */
    #tool { background: var(--navy-950); }
    .dashboard-card {
      background: linear-gradient(160deg, var(--navy-800) 0%, var(--navy-900) 100%);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-xl);
      position: relative;
    }
    .dashboard-card::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
      background: linear-gradient(90deg, var(--blue-500), var(--accent), var(--blue-300));
    }
    .dashboard-header {
      padding: 28px 32px; border-bottom: 1px solid rgba(255,255,255,0.08);
      display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    }
    .dashboard-title-group h2 { font-size: 1.3rem; color: var(--white); }
    .dashboard-title-group p { font-size: 0.85rem; color: var(--gray-400); margin-top: 2px; }
    .btn-retry {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 9px 20px; border-radius: var(--radius-md);
      background: rgba(30,106,180,0.2); border: 1px solid rgba(30,106,180,0.4);
      color: var(--blue-300); font-weight: 600; font-size: 0.85rem;
      transition: all var(--transition);
    }
    .btn-retry:hover { background: rgba(30,106,180,0.35); color: var(--white); }
    .btn-copy {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 7px 16px; border-radius: var(--radius-sm);
      background: rgba(6,182,212,0.12); border: 1px solid rgba(6,182,212,0.3);
      color: var(--accent); font-weight: 600; font-size: 0.8rem;
      transition: all var(--transition); margin-left: 10px;
    }
    .btn-copy:hover { background: rgba(6,182,212,0.22); }
    .btn-copy.copied { background: rgba(16,185,129,0.15); color: var(--success); border-color: rgba(16,185,129,0.3); }
    .dashboard-body { padding: 28px 32px; }

    /* IP Hero Display */
    .ip-display-area {
      display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 28px;
    }
    .ip-card {
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-lg); padding: 24px;
      display: flex; flex-direction: column; gap: 10px; position: relative; overflow: hidden;
      transition: all var(--transition);
    }
    .ip-card:hover { border-color: rgba(6,182,212,0.3); background: rgba(6,182,212,0.05); }
    .ip-card::after {
      content: ''; position: absolute; right: -20px; top: -20px;
      width: 100px; height: 100px; border-radius: 50%;
      background: radial-gradient(circle, rgba(6,182,212,0.08), transparent 70%);
    }
    .ip-card-label {
      font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
      color: var(--gray-500); display: flex; align-items: center; gap: 6px;
    }
    .ip-card-label i { font-size: 0.85rem; color: var(--accent); }
    .ip-value {
      font-family: 'JetBrains Mono', monospace;
      font-size: clamp(1rem, 2.5vw, 1.5rem); font-weight: 600;
      color: var(--white); letter-spacing: 0.02em; word-break: break-all;
    }
    .ip-value.skeleton { color: transparent; background: rgba(255,255,255,0.08); border-radius: 6px; animation: shimmer 1.5s infinite; min-height: 32px; }
    .ip-version-tag {
      display: inline-flex; align-items: center; gap: 4px;
      padding: 2px 10px; border-radius: 99px; font-size: 0.7rem; font-weight: 700;
    }
    .ipv4-tag { background: rgba(30,106,180,0.2); color: var(--blue-300); border: 1px solid rgba(30,106,180,0.35); }
    .ipv6-tag { background: rgba(6,182,212,0.15); color: var(--accent); border: 1px solid rgba(6,182,212,0.3); }
    .ip-na { font-size: 0.85rem; color: var(--gray-500); font-style: italic; }

    @keyframes shimmer {
      0% { background-position: -200% 0; }
      100% { background-position: 200% 0; }
    }
    .skeleton {
      background: linear-gradient(90deg, rgba(255,255,255,0.06) 25%, rgba(255,255,255,0.12) 50%, rgba(255,255,255,0.06) 75%);
      background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 6px;
      color: transparent !important; pointer-events: none;
    }
    .skeleton-text { height: 18px; border-radius: 4px; display: inline-block; }

    /* Info Grid */
    .info-grid {
      display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px;
    }
    .info-item {
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07);
      border-radius: var(--radius-md); padding: 16px; transition: all var(--transition);
    }
    .info-item:hover { border-color: rgba(30,106,180,0.35); background: rgba(30,106,180,0.07); }
    .info-item-label {
      font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.07em; color: var(--gray-500); margin-bottom: 6px;
      display: flex; align-items: center; gap: 5px;
    }
    .info-item-label i { font-size: 0.8rem; color: var(--blue-400); }
    .info-item-value { font-size: 0.95rem; font-weight: 600; color: var(--white); }
    .info-item-value.sk { height: 18px; width: 80%; border-radius: 4px; }

    /* Error State */
    .error-state {
      display: none; flex-direction: column; align-items: center; justify-content: center;
      gap: 14px; padding: 40px 20px; text-align: center;
    }
    .error-state.visible { display: flex; }
    .error-icon { font-size: 2.5rem; color: var(--error); }
    .error-title { font-size: 1.1rem; font-weight: 700; color: var(--white); }
    .error-msg { color: var(--gray-400); font-size: 0.9rem; max-width: 380px; }

    /* Privacy Notice */
    .privacy-notice {
      margin-top: 20px; padding: 14px 18px;
      background: rgba(6,182,212,0.06); border: 1px solid rgba(6,182,212,0.2);
      border-radius: var(--radius-md); display: flex; align-items: flex-start; gap: 10px;
    }
    .privacy-notice i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }
    .privacy-notice p { font-size: 0.8rem; color: var(--gray-400); line-height: 1.5; }
    .privacy-notice strong { color: var(--gray-300); }

    /* ===========================
       MAP SECTION
    =========================== */
    #map-section { background: var(--navy-900); }
    .map-wrapper {
      border-radius: var(--radius-xl); overflow: hidden;
      border: 1px solid rgba(255,255,255,0.1);
      box-shadow: var(--shadow-xl); position: relative;
    }
    .map-overlay-badge {
      position: absolute; top: 14px; left: 14px; z-index: 500;
      background: rgba(2,8,23,0.88); backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-sm);
      padding: 8px 14px; display: flex; align-items: center; gap: 6px;
      font-size: 0.75rem; font-weight: 600; color: var(--warning);
    }
    #leaflet-map { height: 420px; width: 100%; background: var(--navy-800); }
    .map-fallback {
      height: 420px; display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 12px; color: var(--gray-500); background: var(--navy-800);
    }
    .map-fallback i { font-size: 2rem; }
    .map-fallback p { font-size: 0.9rem; }

    /* ===========================
       NETWORK TOOLS GRID
    =========================== */
    #tools { background: var(--navy-950); }
    .tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
    .tool-card {
      background: linear-gradient(160deg, var(--navy-800), var(--navy-900));
      border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg);
      padding: 28px 24px; display: flex; flex-direction: column; gap: 12px;
      transition: all var(--transition); position: relative; overflow: hidden;
    }
    .tool-card::before {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(30,106,180,0.05), transparent);
      opacity: 0; transition: opacity var(--transition); pointer-events: none;
    }
    .tool-card:hover { border-color: rgba(30,106,180,0.4); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .tool-card:hover::before { opacity: 1; }
    .tool-icon {
      width: 52px; height: 52px; border-radius: var(--radius-md);
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem;
    }
    .tool-icon-blue { background: rgba(30,106,180,0.2); color: var(--blue-300); }
    .tool-icon-cyan { background: rgba(6,182,212,0.15); color: var(--accent); }
    .tool-icon-green { background: rgba(16,185,129,0.15); color: var(--success); }
    .tool-icon-orange { background: rgba(245,158,11,0.15); color: var(--warning); }
    .tool-card-title { font-size: 1.05rem; font-weight: 700; color: var(--white); }
    .tool-card-desc { font-size: 0.85rem; color: var(--gray-400); line-height: 1.5; flex: 1; }
    .tool-card-action {
      position: relative; z-index: 2; display: inline-flex; align-items: center; gap: 6px;
      font-size: 0.82rem; font-weight: 600; color: var(--blue-300);
      padding: 8px 16px; border-radius: var(--radius-sm);
      background: rgba(30,106,180,0.12); border: 1px solid rgba(30,106,180,0.25);
      transition: all var(--transition); width: fit-content;
    }
    .tool-card-action:hover { background: rgba(30,106,180,0.25); color: var(--white); }

    /* ===========================
       EDUCATIONAL GUIDE
    =========================== */
    #guide { background: var(--navy-900); }
    .guide-layout { display: grid; grid-template-columns: 280px 1fr; gap: 40px; align-items: start; }
    .guide-toc {
      background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-lg); padding: 24px; position: sticky; top: 90px;
    }
    .guide-toc h3 { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gray-500); margin-bottom: 14px; }
    .guide-toc ul { display: flex; flex-direction: column; gap: 4px; }
    .guide-toc li a {
      display: block; padding: 7px 12px; border-radius: var(--radius-sm);
      font-size: 0.85rem; color: var(--gray-400); transition: all var(--transition);
    }
    .guide-toc li a:hover { color: var(--white); background: rgba(255,255,255,0.07); }
    .guide-content { min-width: 0; }
    .guide-content h2 {
      font-size: 1.5rem; color: var(--white); margin-top: 40px; margin-bottom: 14px;
      padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.08);
      display: flex; align-items: center; gap: 10px;
    }
    .guide-content h2:first-child { margin-top: 0; }
    .guide-content h2 i { font-size: 1.1rem; color: var(--accent); }
    .guide-content h3 { font-size: 1.1rem; color: var(--blue-200); margin-top: 22px; margin-bottom: 10px; }
    .guide-content p { color: var(--gray-300); line-height: 1.8; margin-bottom: 14px; font-size: 0.97rem; }
    .guide-content ul, .guide-content ol { padding-left: 0; margin-bottom: 14px; display: flex; flex-direction: column; gap: 6px; }
    .guide-content li { color: var(--gray-300); font-size: 0.97rem; padding-left: 20px; position: relative; line-height: 1.7; }
    .guide-content li::before { content: '▸'; position: absolute; left: 0; color: var(--accent); font-size: 0.8rem; top: 2px; }
    .guide-content ol { counter-reset: guide-counter; }
    .guide-content ol li { counter-increment: guide-counter; }
    .guide-content ol li::before { content: counter(guide-counter) '.'; color: var(--blue-300); font-weight: 700; font-size: 0.85rem; }
    .info-box {
      margin: 20px 0; padding: 16px 20px;
      border-radius: var(--radius-md); border-left: 4px solid;
    }
    .info-box-blue { background: rgba(30,106,180,0.1); border-color: var(--blue-400); }
    .info-box-cyan { background: rgba(6,182,212,0.08); border-color: var(--accent); }
    .info-box-warn { background: rgba(245,158,11,0.08); border-color: var(--warning); }
    .info-box p { margin-bottom: 0; }
    .info-box strong { color: var(--white); }
    .ip-example {
      font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; font-weight: 600;
      background: rgba(255,255,255,0.07); padding: 2px 8px; border-radius: 4px;
      color: var(--accent-light);
    }
    .comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0; }
    .compare-card {
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md); padding: 18px;
    }
    .compare-card h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 10px; }
    .compare-card.v4 h4 { color: var(--blue-300); }
    .compare-card.v6 h4 { color: var(--accent); }
    .compare-card li { font-size: 0.85rem; color: var(--gray-400); }

    /* ===========================
       FAQ SECTION
    =========================== */
    #faq { background: var(--navy-950); }
    .faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 860px; margin: 0 auto; }
    .faq-item {
      background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-lg); overflow: hidden; transition: border-color var(--transition);
    }
    .faq-item.open { border-color: rgba(6,182,212,0.3); }
    .faq-question {
      width: 100%; padding: 20px 24px; text-align: left;
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      background: none; color: var(--white); font-size: 1rem; font-weight: 600;
      transition: background var(--transition);
    }
    .faq-question:hover { background: rgba(255,255,255,0.04); }
    .faq-question .faq-icon { color: var(--accent); flex-shrink: 0; transition: transform var(--transition); font-size: 0.9rem; }
    .faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
    .faq-item.open .faq-answer { max-height: 600px; }
    .faq-answer-inner { padding: 0 24px 20px; color: var(--gray-300); font-size: 0.95rem; line-height: 1.8; }
    .faq-answer-inner p { margin-bottom: 8px; }
    .faq-answer-inner p:last-child { margin-bottom: 0; }

    /* ===========================
       FOOTER
    =========================== */
    #site-footer {
      background: var(--navy-950); border-top: 1px solid rgba(255,255,255,0.08);
      padding: 52px 0 28px;
    }
    .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand p { font-size: 0.88rem; color: var(--gray-400); line-height: 1.7; margin-top: 14px; max-width: 300px; }
    .footer-col h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gray-500); margin-bottom: 16px; }
    .footer-col ul { display: flex; flex-direction: column; gap: 8px; }
    .footer-col li a { font-size: 0.88rem; color: var(--gray-400); transition: color var(--transition); }
    .footer-col li a:hover { color: var(--white); }
    .footer-bottom {
      padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.06);
      display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    }
    .footer-copy { font-size: 0.82rem; color: var(--gray-500); }
    .footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }
    .footer-legal a { font-size: 0.82rem; color: var(--gray-500); transition: color var(--transition); }
    .footer-legal a:hover { color: var(--gray-300); }
    .footer-disclaimer { margin-top: 14px; font-size: 0.78rem; color: var(--gray-600); line-height: 1.6; text-align: center; }

    /* ===========================
       MODALS
    =========================== */
    .modal-overlay {
      display: none; position: fixed; inset: 0; z-index: 9000;
      background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
      align-items: center; justify-content: center; padding: 20px;
    }
    .modal-overlay.open { display: flex; }
    .modal-box {
      background: var(--navy-800); border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-xl); max-width: 720px; width: 100%;
      max-height: 85vh; display: flex; flex-direction: column;
      box-shadow: var(--shadow-xl); animation: modal-in 0.25s ease;
    }
    @keyframes modal-in { from { opacity:0; transform:scale(0.95) translateY(8px); } to { opacity:1; transform:scale(1) translateY(0); } }
    .modal-header {
      padding: 24px 28px; border-bottom: 1px solid rgba(255,255,255,0.08);
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .modal-title { font-size: 1.2rem; font-weight: 700; color: var(--white); display: flex; align-items: center; gap: 10px; }
    .modal-title i { color: var(--accent); }
    .modal-close {
      width: 36px; height: 36px; border-radius: 50%;
      background: rgba(255,255,255,0.06); color: var(--gray-400);
      display: flex; align-items: center; justify-content: center;
      transition: all var(--transition); font-size: 1rem; flex-shrink: 0;
    }
    .modal-close:hover { background: rgba(255,255,255,0.12); color: var(--white); }
    .modal-body { padding: 28px; overflow-y: auto; flex: 1; }
    .modal-body h3 { font-size: 1rem; color: var(--blue-200); margin-top: 22px; margin-bottom: 8px; }
    .modal-body h3:first-child { margin-top: 0; }
    .modal-body p { font-size: 0.9rem; color: var(--gray-300); line-height: 1.8; margin-bottom: 10px; }
    .modal-body ul { padding-left: 0; display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
    .modal-body li { font-size: 0.88rem; color: var(--gray-300); padding-left: 18px; position: relative; line-height: 1.7; }
    .modal-body li::before { content: '•'; position: absolute; left: 0; color: var(--accent); }
    .modal-footer {
      padding: 16px 28px; border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 0.78rem; color: var(--gray-500); text-align: center;
    }

    /* Contact form */
    .contact-form { display: flex; flex-direction: column; gap: 16px; }
    .form-group { display: flex; flex-direction: column; gap: 6px; }
    .form-group label { font-size: 0.82rem; font-weight: 600; color: var(--gray-300); }
    .form-group input, .form-group textarea, .form-group select {
      background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius-sm); padding: 10px 14px;
      color: var(--white); font-family: 'Inter', sans-serif; font-size: 0.9rem;
      transition: border-color var(--transition); width: 100%;
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
      outline: none; border-color: var(--accent);
    }
    .form-group textarea { min-height: 100px; resize: vertical; }
    .form-group input::placeholder, .form-group textarea::placeholder { color: var(--gray-600); }
    .form-submit {
      padding: 11px 24px; border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--blue-500), var(--accent));
      color: white; font-weight: 700; font-size: 0.9rem;
      transition: all var(--transition); width: fit-content;
    }
    .form-submit:hover { opacity: 0.9; transform: translateY(-1px); }
    .webmaster-note {
      background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3);
      border-radius: var(--radius-sm); padding: 10px 14px;
      font-size: 0.8rem; color: var(--warning); line-height: 1.5;
    }

    /* ===========================
       RESPONSIVE
    =========================== */
    @media (max-width: 1024px) {
      .guide-layout { grid-template-columns: 1fr; }
      .guide-toc { display: none; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .main-nav { display: none; }
      .hamburger { display: flex; }
      .ip-display-area { grid-template-columns: 1fr; }
      .dashboard-body { padding: 20px; }
      .dashboard-header { padding: 20px; }
      .info-grid { grid-template-columns: 1fr 1fr; }
      .comparison-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-stats { gap: 24px; }
      section { padding: 44px 0; }
      .tools-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 480px) {
      .tools-grid { grid-template-columns: 1fr; }
      .info-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .hero-actions { flex-direction: column; align-items: center; }
      .modal-box { margin: 10px; max-height: 90vh; }
    }

    /* ===========================
       PROGRESS INDICATOR
    =========================== */
    .progress-bar {
      position: fixed; top: 0; left: 0; height: 3px; z-index: 9999;
      background: linear-gradient(90deg, var(--blue-500), var(--accent));
      transition: width 0.3s ease; width: 0%;
    }

    /* ===========================
       LIGHT / DARK THEME TOGGLE
    =========================== */
    html[data-theme="dark"] { color-scheme: dark; }
    html[data-theme="light"] { color-scheme: light; }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }

    .theme-toggle {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      background: rgba(255,255,255,0.07);
      border: 1px solid rgba(255,255,255,0.12);
      color: var(--gray-300);
      font-size: 1rem;
      transition: all var(--transition);
    }

    .theme-toggle:hover {
      color: var(--white);
      background: rgba(255,255,255,0.12);
      transform: translateY(-1px);
    }

    .theme-toggle i {
      pointer-events: none;
    }

    /* Light theme palette */
    html[data-theme="light"] {
      --navy-950: #f8fafc;
      --navy-900: #ffffff;
      --navy-800: #f1f5f9;
      --navy-700: #e2e8f0;
      --navy-600: #cbd5e1;

      --white: #0f172a;
      --gray-50: #0f172a;
      --gray-100: #1e293b;
      --gray-200: #334155;
      --gray-300: #475569;
      --gray-400: #64748b;
      --gray-500: #64748b;
      --gray-600: #94a3b8;
      --gray-700: #cbd5e1;
      --gray-800: #e2e8f0;

      --shadow-sm: 0 1px 2px rgba(15,23,42,0.08);
      --shadow-md: 0 4px 16px rgba(15,23,42,0.10);
      --shadow-lg: 0 8px 32px rgba(15,23,42,0.12);
      --shadow-xl: 0 20px 60px rgba(15,23,42,0.14);
    }

    html[data-theme="light"] body {
      background: #f8fafc;
      color: #0f172a;
    }

    html[data-theme="light"] #site-header {
      background: rgba(255,255,255,0.94);
      border-bottom-color: rgba(15,23,42,0.08);
    }

    html[data-theme="light"] #site-header.scrolled {
      box-shadow: 0 4px 24px rgba(15,23,42,0.10);
    }

    html[data-theme="light"] .mobile-nav {
      background: rgba(255,255,255,0.98);
      border-top-color: rgba(15,23,42,0.08);
    }

    html[data-theme="light"] .main-nav a:hover,
    html[data-theme="light"] .mobile-nav a:hover {
      background: rgba(15,23,42,0.06);
    }

    html[data-theme="light"] .hamburger span {
      background: #334155;
    }

    html[data-theme="light"] #hero {
      background: linear-gradient(160deg, #ffffff 0%, #f8fafc 58%, #eff6ff 100%);
    }

    html[data-theme="light"] .hero-bg {
      background:
        radial-gradient(ellipse 60% 40% at 70% 20%, rgba(30,106,180,0.10) 0%, transparent 70%),
        radial-gradient(ellipse 40% 50% at 20% 80%, rgba(6,182,212,0.07) 0%, transparent 70%);
    }

    html[data-theme="light"] .hero-grid-bg {
      background-image:
        linear-gradient(rgba(15,23,42,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.035) 1px, transparent 1px);
    }

    html[data-theme="light"] .hero-title {
      background: linear-gradient(135deg, #0f172a 0%, #1e6ab4 55%, #0891b2 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    html[data-theme="light"] .btn-secondary {
      background: rgba(15,23,42,0.05);
      border-color: rgba(15,23,42,0.12);
      color: #334155;
    }

    html[data-theme="light"] .btn-secondary:hover {
      background: rgba(15,23,42,0.09);
      color: #0f172a;
    }

    html[data-theme="light"] .dashboard-card,
    html[data-theme="light"] .tool-card {
      border-color: rgba(15,23,42,0.10);
    }

    html[data-theme="light"] .dashboard-card,
    html[data-theme="light"] .tool-card {
      background: linear-gradient(160deg, #ffffff 0%, #f8fafc 100%);
    }

    html[data-theme="light"] .ip-card,
    html[data-theme="light"] .info-item,
    html[data-theme="light"] .compare-card,
    html[data-theme="light"] .faq-item,
    html[data-theme="light"] .guide-toc {
      background: rgba(15,23,42,0.025);
      border-color: rgba(15,23,42,0.09);
    }

    html[data-theme="light"] .ip-card:hover,
    html[data-theme="light"] .info-item:hover {
      background: rgba(30,106,180,0.055);
    }

    html[data-theme="light"] .dashboard-header,
    html[data-theme="light"] .guide-content h2,
    html[data-theme="light"] #site-footer,
    html[data-theme="light"] .footer-bottom {
      border-color: rgba(15,23,42,0.08);
    }

    html[data-theme="light"] .skeleton,
    html[data-theme="light"] .ip-value.skeleton {
      background: linear-gradient(
        90deg,
        rgba(15,23,42,0.05) 25%,
        rgba(15,23,42,0.10) 50%,
        rgba(15,23,42,0.05) 75%
      );
      background-size: 200% 100%;
    }

    html[data-theme="light"] .adsense-placeholder {
      background: rgba(15,23,42,0.025);
      border-color: rgba(100,116,139,0.30);
    }

    html[data-theme="light"] .modal-box {
      background: #ffffff;
      border-color: rgba(15,23,42,0.10);
    }

    html[data-theme="light"] .modal-header,
    html[data-theme="light"] .modal-footer {
      border-color: rgba(15,23,42,0.08);
    }

    html[data-theme="light"] .modal-close {
      background: rgba(15,23,42,0.05);
    }

    html[data-theme="light"] .form-group input,
    html[data-theme="light"] .form-group textarea,
    html[data-theme="light"] .form-group select {
      background: #ffffff;
      border-color: rgba(15,23,42,0.14);
      color: #0f172a;
    }

    html[data-theme="light"] .theme-toggle {
      background: #f1f5f9;
      border-color: #e2e8f0;
      color: #334155;
    }

    html[data-theme="light"] .theme-toggle:hover {
      background: #e2e8f0;
      color: #0f172a;
    }

    @media (max-width: 768px) {
      .header-inner { gap: 12px; }
      .header-actions { margin-left: auto; }
    }

  

/* ========================= FASTIP GUIDES CMS ========================= */
.guide-hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--navy-900) 0%,var(--navy-950) 60%,#050d1f 100%);padding:72px 20px 56px}
.guide-hero::before{content:'';position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 60% 40% at 70% 20%,rgba(30,106,180,.18),transparent 70%),radial-gradient(ellipse 40% 50% at 20% 80%,rgba(6,182,212,.10),transparent 70%)}
.guide-hero-inner{position:relative;z-index:1;max-width:1200px;margin:0 auto}.guide-breadcrumbs{font-size:.84rem;color:var(--gray-400);margin-bottom:22px}.guide-breadcrumbs a{color:var(--gray-300)}
.guide-label{display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:99px;background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.25);color:var(--accent);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:16px}
.guide-title{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:800;line-height:1.08;margin:0 0 18px;background:linear-gradient(135deg,#fff 0%,#93c5fd 50%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.guide-intro{max-width:800px;color:var(--gray-300);font-size:clamp(1rem,2vw,1.15rem)}
.guide-section{padding:58px 0;background:var(--navy-950)}.guide-section.alt{background:var(--navy-900)}.guide-section-head{margin-bottom:34px}.guide-section-title{font-size:clamp(1.5rem,3vw,2.2rem);color:var(--white);margin-bottom:10px}.guide-section-subtitle{color:var(--gray-400);max-width:760px}
.guide-filter-row{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}.guide-filter{padding:9px 14px;border-radius:99px;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.04);color:var(--gray-300)}.guide-filter.active,.guide-filter:hover{border-color:rgba(6,182,212,.42);background:rgba(6,182,212,.12);color:var(--white)}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.guide-card{display:flex;flex-direction:column;overflow:hidden;background:linear-gradient(160deg,var(--navy-800),var(--navy-900));border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);transition:all var(--transition);box-shadow:0 2px 10px rgba(0,0,0,.12);color:inherit}.guide-card:hover{transform:translateY(-4px);border-color:rgba(30,106,180,.42);box-shadow:var(--shadow-lg);color:inherit}.guide-card-visual{min-height:190px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 20%,rgba(79,163,232,.26),transparent 30%),linear-gradient(135deg,#102b4c,#07233a)}.guide-card-visual img{width:100%;height:190px;object-fit:cover}.guide-card-visual i{font-size:3.2rem;color:var(--accent)}.guide-card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}.guide-tag{color:var(--accent);font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.guide-card h2,.guide-card h3{font-size:1.16rem;line-height:1.32;color:var(--white)}.guide-card p{color:var(--gray-400);font-size:.91rem;flex:1}.guide-meta{color:var(--gray-500);font-size:.80rem}.guide-read{color:var(--blue-300);font-weight:700;font-size:.88rem}
.guide-category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.guide-category{padding:24px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg)}.guide-category h3{font-size:1.08rem;color:var(--white);margin-bottom:8px}.guide-category p{color:var(--gray-400)}
.guide-article-wrap{padding:56px 0;background:var(--navy-950)}.guide-featured{max-width:930px;margin:0 auto 24px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.08)}.guide-featured img{display:block;width:100%;height:auto}.guide-article{max-width:930px;margin:0 auto;background:linear-gradient(160deg,var(--navy-800),var(--navy-900));border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-xl);padding:clamp(24px,4vw,46px);box-shadow:var(--shadow-xl)}.guide-article-meta{font-size:.88rem;color:var(--gray-500);margin-bottom:28px}.guide-article-content h2{font-size:clamp(1.35rem,3vw,1.9rem);color:var(--white);margin:40px 0 14px;padding-bottom:9px;border-bottom:1px solid rgba(255,255,255,.08)}.guide-article-content h3{font-size:1.1rem;color:var(--blue-200);margin:26px 0 9px}.guide-article-content p{color:var(--gray-300);line-height:1.82;margin-bottom:16px}.guide-article-content ul,.guide-article-content ol{padding-left:22px;margin-bottom:18px}.guide-article-content li{color:var(--gray-300);line-height:1.7;margin:6px 0}.guide-article-content strong{color:var(--white)}.guide-article-content code{font-family:'JetBrains Mono',monospace;background:rgba(255,255,255,.07);padding:.1em .35em;border-radius:5px}.guide-article-content blockquote{border-left:4px solid var(--accent);padding:10px 16px;margin:20px 0;background:rgba(6,182,212,.05);color:var(--gray-300)}.guide-article-content table{width:100%;border-collapse:collapse;margin:24px 0;background:rgba(255,255,255,.025);border-radius:var(--radius-md);overflow:hidden}.guide-article-content th,.guide-article-content td{padding:13px 14px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(255,255,255,.08);color:var(--gray-300)}.guide-article-content th{background:rgba(255,255,255,.05);color:var(--white)}.guide-article-content .summary,.guide-article-content .note,.guide-article-content .cta{padding:20px;margin:24px 0;border-radius:var(--radius-lg);background:rgba(6,182,212,.06);border:1px solid rgba(6,182,212,.18)}.guide-article-content .cta{text-align:center}.guide-article-content .cta a{display:inline-flex;margin-top:8px;padding:11px 20px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--blue-500),var(--accent));color:#fff;font-weight:800}.guide-article-content .faq-item{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
html[data-theme='light'] .guide-hero{background:linear-gradient(160deg,#fff 0%,#f8fafc 58%,#eff6ff 100%)}html[data-theme='light'] .guide-hero::before{background:radial-gradient(ellipse 60% 40% at 70% 20%,rgba(30,106,180,.10),transparent 70%),radial-gradient(ellipse 40% 50% at 20% 80%,rgba(6,182,212,.07),transparent 70%)}html[data-theme='light'] .guide-title{background:linear-gradient(135deg,#0f172a 0%,#1e6ab4 55%,#0891b2 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}html[data-theme='light'] .guide-card,html[data-theme='light'] .guide-article{background:linear-gradient(160deg,#fff,#f8fafc);border-color:rgba(15,23,42,.10)}html[data-theme='light'] .guide-category{background:rgba(15,23,42,.025);border-color:rgba(15,23,42,.09)}html[data-theme='light'] .guide-filter{background:rgba(15,23,42,.025);border-color:rgba(15,23,42,.09);color:#475569}html[data-theme='light'] .guide-filter.active,html[data-theme='light'] .guide-filter:hover{background:rgba(6,182,212,.08);color:#0f172a}html[data-theme='light'] .guide-article-content h2,html[data-theme='light'] .guide-article-content th,html[data-theme='light'] .guide-article-content td,html[data-theme='light'] .guide-article-content .faq-item{border-color:rgba(15,23,42,.08)}html[data-theme='light'] .guide-article-content th{background:rgba(15,23,42,.04)}html[data-theme='light'] .guide-article-content code{background:rgba(15,23,42,.06)}
@media(max-width:900px){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.guide-hero{padding:48px 14px 38px}.guide-section,.guide-article-wrap{padding:42px 0}.guide-grid,.guide-category-grid{grid-template-columns:1fr}.guide-card-visual{min-height:155px}.guide-card-visual img{height:155px}.guide-article{margin:0 14px;padding:20px 16px;border-radius:var(--radius-lg)}.guide-featured{margin:0 14px 20px}.guide-article-content table{display:block;overflow-x:auto}}

/* =========================================================
   FAST IP CLEAN REBUILD — INTERACTION + ARTICLE POLISH
   ========================================================= */
a[href] { cursor: pointer !important; }
.guide-card,
.guide-filter,
.theme-toggle,
.hamburger,
.modal-close,
.form-submit { cursor: pointer !important; }

.guide-article-content .cta {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.guide-article-content .cta a,
.guide-article-content .fic-check-ip-btn,
.fic-check-ip-btn {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
  padding: 12px 22px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg,var(--blue-500),var(--accent));
  color: #fff !important;
  font-weight: 800;
  text-decoration: none !important;
  cursor: pointer !important;
  pointer-events: auto !important;
  user-select: none;
  touch-action: manipulation;
  box-shadow: 0 8px 24px rgba(6,182,212,.18);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.guide-article-content .cta a:hover,
.guide-article-content .fic-check-ip-btn:hover,
.fic-check-ip-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 12px 30px rgba(6,182,212,.28);
}

.guide-article-content .cta a:focus-visible,
.guide-article-content .fic-check-ip-btn:focus-visible,
.fic-check-ip-btn:focus-visible {
  outline: 3px solid rgba(34,211,238,.45);
  outline-offset: 3px;
}

.guide-featured img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

@media (hover:none) {
  .guide-article-content .cta a:hover,
  .fic-check-ip-btn:hover { transform: none; }
}

/* Improve guide card images on mobile only */
@media (max-width: 640px) {
  #guide-grid {
    width: calc(100% + 24px);
    margin-left: -12px;
    margin-right: -12px;
  }

  #guide-grid .guide-card-visual {
    min-height: 210px;
  }

  #guide-grid .guide-card-visual img {
    display: block;
    width: 100%;
    height: 210px;
    object-fit: cover;
    object-position: center;
  }
}

/* FASTIP - Full width mobile article */
@media (max-width: 640px) {

  .guide-article-wrap {
    padding: 18px 0 36px;
  }

  .guide-article-wrap > .container {
    width: 100%;
    max-width: none;
    padding-left: 10px;
    padding-right: 10px;
  }

  /* Main article image */
  .guide-article-wrap .guide-featured {
    width: 100%;
    max-width: none;
    margin: 0 0 18px;
    border-radius: 14px;
  }

  .guide-article-wrap .guide-featured img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
  }

  /* Article content card */
  .guide-article-wrap .guide-article {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 22px 18px 26px;
    border-radius: 16px;
  }

  .guide-article-wrap .guide-article-content p,
  .guide-article-wrap .guide-article-content li {
    font-size: 17px;
    line-height: 1.85;
  }

  .guide-article-wrap .guide-article-meta {
    font-size: 15px;
    line-height: 1.7;
  }
}