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

    :root {
      --emerald:      #10b981;
      --emerald-dark: #059669;
      --teal:         #0d9488;
      --panel-bg:     #0f3d38;
      --panel-deep:   #082b27;
      --page-bg:      #eef2f0;
      --white:        #ffffff;
      --text-dark:    #111827;
      --text-mid:     #374151;
      --text-soft:    #6b7280;
      --border:       #e5e7eb;
      --error:        #ef4444;
      --error-bg:     #fef2f2;
      --error-border: #fecaca;
    }

    html, body { height: 100%; }

    body {
      font-family: 'Inter', system-ui, sans-serif;
      background: var(--page-bg);
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      padding: 24px;
    }

    .shell {
      display: flex;
      width: 100%;
      max-width: 980px;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: 0 24px 70px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
      animation: popIn 0.55s cubic-bezier(0.22,1,0.36,1) both;
    }
    @keyframes popIn {
      from { opacity: 0; transform: translateY(24px) scale(0.98); }
      to   { opacity: 1; transform: translateY(0) scale(1); }
    }

    .left {
      flex: 0 0 44%;
      background: var(--white);
      padding: 52px 48px 44px;
      display: flex;
      flex-direction: column;
    }

    .wordmark {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 48px;
    }
    .wordmark-icon {
      width: 34px; height: 34px;
      background: linear-gradient(135deg, var(--emerald), var(--teal));
      border-radius: 9px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
      box-shadow: 0 4px 12px rgba(16,185,129,0.3);
    }
    .wordmark-icon svg { width: 18px; height: 18px; fill: #fff; }
    .wordmark-text {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: -0.01em;
    }
    .wordmark-text span { color: var(--emerald-dark); }

    .form-heading {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--text-dark);
      letter-spacing: -0.025em;
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .form-sub {
      font-size: 0.875rem;
      color: var(--text-soft);
      margin-bottom: 36px;
      line-height: 1.5;
    }

    .form-group { margin-bottom: 18px; }

    label {
      display: block;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--text-mid);
      margin-bottom: 7px;
    }

    .input-wrap { position: relative; }
    .input-wrap .ico {
      position: absolute;
      left: 13px; top: 50%;
      transform: translateY(-50%);
      width: 16px; height: 16px;
      fill: #9ca3af;
      pointer-events: none;
      transition: fill 0.2s;
    }
    .input-wrap:focus-within .ico { fill: var(--emerald-dark); }

    input {
      width: 100%;
      padding: 11px 14px 11px 41px;
      border: 1.5px solid var(--border);
      border-radius: 10px;
      font-family: inherit;
      font-size: 0.9rem;
      color: var(--text-dark);
      background: #fff;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    input::placeholder { color: #d1d5db; }
    input:focus {
      border-color: var(--emerald);
      box-shadow: 0 0 0 3px rgba(16,185,129,0.13);
    }

    .error-banner {
      display: none;
      align-items: center;
      gap: 9px;
      padding: 11px 13px;
      margin-bottom: 16px;
      background: var(--error-bg);
      border: 1.5px solid var(--error-border);
      border-radius: 10px;
      font-size: 0.82rem;
      color: var(--error);
    }
    .error-banner svg { flex-shrink:0; width:14px; height:14px; fill:var(--error); }
    .error-banner.visible {
      display: flex;
      animation: slideIn 0.25s ease;
    }
    @keyframes slideIn {
      from { opacity:0; transform:translateY(-6px); }
      to   { opacity:1; transform:translateY(0); }
    }

    .btn {
      width: 100%;
      margin-top: 8px;
      padding: 13px;
      border: none;
      border-radius: 10px;
      font-family: inherit;
      font-size: 0.92rem;
      font-weight: 700;
      cursor: pointer;
      background: linear-gradient(135deg, var(--emerald) 0%, var(--teal) 100%);
      background-size: 200% 200%;
      background-position: left;
      color: #fff;
      box-shadow: 0 4px 18px rgba(16,185,129,0.32);
      transition: background-position 0.45s, box-shadow 0.2s, transform 0.12s, opacity 0.2s;
      position: relative;
      overflow: hidden;
    }
    .btn:disabled {
      opacity: 0.35;
      cursor: not-allowed;
      box-shadow: none;
    }
    .btn:not(:disabled):hover {
      background-position: right;
      box-shadow: 0 6px 28px rgba(16,185,129,0.45);
    }
    .btn:not(:disabled):active { transform: translateY(1px); }
    .btn::after {
      content: '';
      position: absolute;
      top: 0; left: -80%;
      width: 50%; height: 100%;
      background: linear-gradient(120deg, transparent, rgba(255,255,255,0.22), transparent);
      transition: left 0.5s;
    }
    .btn:not(:disabled):hover::after { left: 150%; }

    .left-footer {
      margin-top: auto;
      padding-top: 32px;
      font-size: 0.71rem;
      color: #d1d5db;
      text-align: center;
      line-height: 1.7;
    }
    .left-footer strong { color: #9ca3af; font-weight: 500; }

    .right {
      flex: 1;
      background: linear-gradient(150deg, var(--panel-bg) 0%, var(--panel-deep) 100%);
      padding: 52px 48px 48px;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .orb {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
    }
    .orb-1 {
      width: 380px; height: 380px;
      background: radial-gradient(circle, rgba(16,185,129,0.2), transparent 65%);
      top: -100px; right: -80px;
    }
    .orb-2 {
      width: 280px; height: 280px;
      background: radial-gradient(circle, rgba(13,148,136,0.18), transparent 65%);
      bottom: -60px; left: -40px;
    }
    .orb-3 {
      width: 160px; height: 160px;
      background: radial-gradient(circle, rgba(52,211,153,0.1), transparent 70%);
      top: 48%; left: 38%;
    }

    .panel-tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: rgba(16,185,129,0.14);
      border: 1px solid rgba(16,185,129,0.28);
      border-radius: 100px;
      padding: 5px 14px;
      font-size: 0.69rem;
      font-weight: 600;
      letter-spacing: 0.13em;
      text-transform: uppercase;
      color: #6ee7b7;
      margin-bottom: 28px;
      width: fit-content;
    }
    .dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: #34d399;
      box-shadow: 0 0 7px #34d399;
      animation: blink 2.2s ease infinite;
    }
    @keyframes blink {
      0%, 100% { opacity: 1; }
      50%       { opacity: 0.35; }
    }

    .panel-heading {
      font-size: 1.7rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.025em;
      line-height: 1.28;
      margin-bottom: 16px;
    }
    .panel-heading em {
      font-style: normal;
      background: linear-gradient(90deg, #6ee7b7, #34d399);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .panel-desc {
      font-size: 0.875rem;
      color: rgba(209,250,229,0.6);
      line-height: 1.75;
      margin-bottom: 32px;
    }

    .feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 36px;
    }
    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.875rem;
      color: rgba(255,255,255,0.78);
      line-height: 1.5;
    }
    .check-pill {
      flex-shrink: 0;
      width: 20px; height: 20px;
      border-radius: 50%;
      background: rgba(16,185,129,0.18);
      border: 1px solid rgba(52,211,153,0.35);
      display: flex; align-items: center; justify-content: center;
      margin-top: 1px;
    }
    .check-pill svg { width: 10px; height: 10px; fill: #34d399; }

    .quote-card {
      margin-top: auto;
      background: rgba(255,255,255,0.055);
      border: 1px solid rgba(255,255,255,0.09);
      border-radius: 16px;
      padding: 22px 22px 20px;
    }
    .stars {
      display: flex;
      gap: 3px;
      margin-bottom: 13px;
    }
    .stars svg { width: 14px; height: 14px; fill: #fbbf24; }
    .quote-text {
      font-size: 0.845rem;
      color: rgba(255,255,255,0.8);
      line-height: 1.7;
      margin-bottom: 14px;
      font-style: italic;
    }
    .quote-author {
      font-size: 0.78rem;
      font-weight: 700;
      color: #6ee7b7;
    }
    .quote-role {
      font-size: 0.74rem;
      color: rgba(255,255,255,0.38);
      margin-top: 2px;
    }

    @media (max-width: 680px) {
      .shell { flex-direction: column; }
      .right { display: none; }
      .left  { padding: 40px 28px 36px; flex: unset; }
    }