:root {
      --ink: #0f172a;
      --text: #1e293b;
      --muted: #64748b;
      --line: #e2e8f0;
      --panel: #ffffff;
      --primary: #224f68;
      --primary-dark: #17384a;
      --primary-light: #e7f7fa;
      --accent: #8ddae1;
      --bg: #f1f5f9;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
      --shadow: 0 4px 24px rgba(15,23,42,0.08), 0 1px 4px rgba(15,23,42,0.04);
      --shadow-lg: 0 20px 60px rgba(15,23,42,0.12), 0 4px 16px rgba(15,23,42,0.06);
      --radius: 16px;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

    body {
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      -webkit-font-smoothing: antialiased;
    }

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

    /* ── Header ── */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(248, 250, 252, 0.9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      width: min(1120px, calc(100vw - 40px));
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 18px;
      color: var(--ink);
      letter-spacing: -0.03em;
    }

    .nav-logo-badge {
      display: inline-block;
      font-size: 10px !important;
      font-weight: 700;
      line-height: 1;
      color: #224f68;
      background: #d8f3f7 !important;
      padding: 2px 6px !important;
      border-radius: 4px;
      margin-left: -4px;
      vertical-align: middle;
      letter-spacing: 0;
    }

    .brand img {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      object-fit: contain;
    }

    .nav-actions {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .lang-select {
      height: 38px;
      padding: 0 12px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: white;
      color: var(--text);
      font-size: 13px;
      font-weight: 600;
      outline: none;
      cursor: pointer;
    }

    /* ── Main ── */
    .main {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 48px 20px;
      position: relative;
      overflow: hidden;
    }

    .main::before {
      content: "";
      position: absolute;
      top: -80px;
      left: 50%;
      transform: translateX(-50%);
      width: 800px;
      height: 500px;
      background: radial-gradient(ellipse at center, rgba(34,79,104,0.07) 0%, transparent 65%);
      pointer-events: none;
    }

    .container {
      width: 100%;
      max-width: 440px;
      position: relative;
    }

    /* ── Card ── */
    .card {
      background: white;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-lg);
    }

    .card-header {
      text-align: center;
      margin-bottom: 24px;
    }

    .card-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 20px;
      font-size: 20px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -0.03em;
    }

    .card-logo .nav-logo-badge {
      font-size: 10px !important;
    }

    .card-logo img {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      object-fit: contain;
    }

    .card-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -0.03em;
      margin-bottom: 6px;
    }

    .card-sub {
      display: none;
    }

    /* ── Tabs ── */
    .tabs {
      display: flex;
      background: var(--bg);
      border-radius: 12px;
      padding: 4px;
      margin-bottom: 28px;
    }

    .tab {
      flex: 1;
      padding: 9px;
      border: none;
      border-radius: 9px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.15s;
      background: transparent;
      color: var(--muted);
    }

    .tab.active {
      background: white;
      color: var(--ink);
      box-shadow: var(--shadow-sm);
    }

    /* ── Form ── */
    .field { margin-bottom: 18px; }

    label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 7px;
    }

    label .hint {
      font-weight: 400;
      color: var(--muted);
    }

    .domain-info-icon {
      position: relative;
      display: inline-flex;
      align-items: center;
      color: var(--muted);
      cursor: default;
      font-weight: 400;
    }

    .domain-info-icon:hover .domain-info-tooltip,
    .domain-info-icon:focus .domain-info-tooltip {
      opacity: 1;
      pointer-events: auto;
    }

    .domain-info-tooltip {
      opacity: 0;
      pointer-events: none;
      position: absolute;
      bottom: calc(100% + 6px);
      left: 50%;
      transform: translateX(-50%);
      background: #1e293b;
      color: #f8fafc;
      font-size: 12px;
      font-weight: 400;
      line-height: 1.45;
      padding: 7px 10px;
      border-radius: 7px;
      white-space: normal;
      width: 220px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      transition: opacity 0.15s;
      z-index: 10;
    }

    .domain-info-tooltip::after {
      content: '';
      position: absolute;
      top: 100%;
      left: 50%;
      transform: translateX(-50%);
      border: 5px solid transparent;
      border-top-color: #1e293b;
    }

    .checkbox-label {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-weight: 400 !important;
      margin-bottom: 0 !important;
      cursor: pointer;
    }

    .checkbox-label input[type="checkbox"] {
      margin-top: 2px;
      flex-shrink: 0;
    }

    .checkbox-label a {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 0.12em;
    }

    .checkbox-label a:hover {
      text-decoration: underline;
    }

    input[type="email"],
    input[type="password"],
    input[type="text"] {
      width: 100%;
      padding: 11px 14px;
      background: var(--bg);
      border: 1px solid var(--line);
      border-radius: 10px;
      color: var(--ink);
      font-size: 14px;
      font-family: inherit;
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
    }

    input[type="email"]:focus,
    input[type="password"]:focus,
    input[type="text"]:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(34,79,104,0.1);
      background: white;
    }

    input::placeholder { color: #94a3b8; }

    /* ── Button ── */
    .btn-submit {
      width: 100%;
      padding: 13px;
      background: var(--primary);
      border: none;
      border-radius: 10px;
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      font-family: inherit;
      cursor: pointer;
      margin-top: 8px;
      transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
      box-shadow: 0 1px 3px rgba(34,79,104,0.35), 0 4px 12px rgba(34,79,104,0.25);
    }

    .btn-submit:hover:not(:disabled) {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 2px 6px rgba(34,79,104,0.4), 0 8px 20px rgba(34,79,104,0.3);
    }

    .btn-submit:disabled {
      opacity: 0.55;
      cursor: not-allowed;
      transform: none;
    }

    /* ── Error ── */
    .error {
      background: #fef2f2;
      border: 1px solid #fecaca;
      color: #dc2626;
      border-radius: 10px;
      padding: 11px 14px;
      font-size: 13px;
      margin-top: 16px;
      display: none;
    }

    .error.show { display: block; }

    .success {
      background: #ecfdf5;
      border: 1px solid #a7f3d0;
      color: #047857;
      border-radius: 10px;
      padding: 11px 14px;
      font-size: 13px;
      margin-top: 16px;
      display: none;
    }

    .success.show { display: block; }

    .form-meta {
      margin-top: 14px;
      text-align: right;
    }

    .form-meta.form-meta-below {
      text-align: center;
    }

    .inline-link {
      border: none;
      background: transparent;
      padding: 0;
      color: var(--primary);
      font: inherit;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
    }

    .inline-link:hover { text-decoration: underline; }
    /* ── Back link ── */
    .back-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 500;
      color: var(--muted);
      transition: color 0.15s;
    }

    .back-link:hover { color: var(--ink); }