/* ── RESET ──────────────────────────────────────────────────── */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { height: 100%; }

  /* ── TOKENS ─────────────────────────────────────────────────── */
  :root {
    --blue:       #1469F5;
    --blue-dark:  #0A3FBE;
    --blue-light: #5A9BFF;
    --blue-dim:   rgba(20,105,245,0.10);
    --blue-glow:  rgba(20,105,245,0.30);

    --black:    #07090F;
    --surface:  #0C1018;
    --surface2: #111620;
    --surface3: #181E2C;
    --border:   rgba(255,255,255,0.07);
    --border2:  rgba(255,255,255,0.12);
    --text:     #E8EBF2;
    --muted:    #7C859A;
    --muted2:   #4E5568;
    --red:      #E5534B;
    --green:    #22C55E;
    --amber:    #F59E0B;

    --radius:   4px;
    --card-r:   6px;
  }

  [data-theme="light"] {
    --black:    #F0F3FA;
    --surface:  #FFFFFF;
    --surface2: #F4F6FB;
    --surface3: #E8EDF7;
    --border:   rgba(0,0,0,0.08);
    --border2:  rgba(0,0,0,0.14);
    --text:     #0C1018;
    --muted:    #596070;
    --muted2:   #8892A4;
    --blue-glow: rgba(20,105,245,0.18);
  }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--black);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    overflow: hidden;
  }

  /* ── SHELL ──────────────────────────────────────────────────── */
  .auth-shell {
    display: flex;
    width: 100%;
    min-height: 100vh;
  }

  /* ── LEFT PANEL ─────────────────────────────────────────────── */
  .auth-left {
    flex: 0 0 44%;
    position: relative;
    background: var(--surface);
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  .left-grid {
    position: absolute; inset: 0; z-index: 0;
    background-image:
      linear-gradient(rgba(20,105,245,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(20,105,245,0.06) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse 80% 80% at 30% 40%, black 30%, transparent 100%);
  }
  .left-glow-1 {
    position: absolute; z-index: 0;
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(20,105,245,0.18) 0%, transparent 70%);
    top: -120px; left: -120px; pointer-events: none;
  }
  .left-glow-2 {
    position: absolute; z-index: 0;
    width: 360px; height: 360px; border-radius: 50%;
    background: radial-gradient(circle, rgba(90,155,255,0.10) 0%, transparent 70%);
    bottom: 60px; right: -80px; pointer-events: none;
  }

  .left-inner {
    position: relative; z-index: 1;
    flex: 1; display: flex; flex-direction: column;
    padding: 2.5rem 2.6rem 2rem;
    gap: 0;
  }

  .auth-logo {
    display: flex; align-items: center; gap: 0.65rem;
    text-decoration: none; margin-bottom: 2.8rem;
  }
  .auth-logo img {
    height: 30px; width: auto;
    filter: invert(1) brightness(0.9);
    transition: filter 0.3s;
  }
  [data-theme="light"] .auth-logo img { filter: none; }

  /* hero text */
  .left-tag {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem; letter-spacing: 0.18em;
    text-transform: uppercase; color: var(--blue-light);
    margin-bottom: 1.1rem;
    display: flex; align-items: center; gap: 0.5rem;
  }
  .left-tag::before {
    content: '';
    display: inline-block; width: 24px; height: 1px;
    background: var(--blue-light);
  }

  .left-headline {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.8rem, 4.5vw, 4rem);
    line-height: 1.05; letter-spacing: 0.03em;
    color: var(--text); margin-bottom: 1.1rem;
  }
  .left-headline em {
    font-style: normal; color: var(--blue);
  }

  .left-sub {
    font-size: 0.92rem; color: var(--muted); line-height: 1.65;
    max-width: 340px; margin-bottom: 2rem;
  }

  .feature-list {
    list-style: none; display: flex; flex-direction: column; gap: 0.75rem;
    margin-bottom: 2.4rem;
  }
  .feature-list li {
    display: flex; align-items: flex-start; gap: 0.75rem;
    font-size: 0.87rem; color: var(--muted);
  }
  .feature-dot {
    color: var(--blue); font-size: 0.85rem; margin-top: 1px; flex-shrink: 0;
  }
  .feature-list li span span {
    color: var(--text); font-weight: 500;
  }

  /* mail promo card */
  .mail-promo {
    background: linear-gradient(135deg, rgba(20,105,245,0.12), rgba(10,63,190,0.06));
    border: 1px solid rgba(20,105,245,0.25);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    display: flex; align-items: center; gap: 0.9rem;
    margin-bottom: 2rem;
  }
  .mail-promo-icon {
    width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--blue-dark), var(--blue));
    display: flex; align-items: center; justify-content: center;
  }
  .mail-promo-icon svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 1.8; }
  .mail-promo-text { flex: 1; min-width: 0; }
  .mail-promo-label {
    font-size: 0.72rem; font-family: 'Space Mono', monospace;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--blue-light); margin-bottom: 0.2rem;
  }
  .mail-promo-desc { font-size: 0.82rem; color: var(--muted); }
  .mail-promo-desc strong { color: var(--text); }

  .left-stats {
    display: flex; gap: 1.8rem;
    border-top: 1px solid var(--border);
    padding-top: 1.4rem;
    margin-top: auto;
  }
  .left-stat-val {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.9rem; letter-spacing: 0.04em;
    color: var(--text); line-height: 1;
  }
  .left-stat-val span { color: var(--blue); font-size: 1.2rem; }
  .left-stat-lbl {
    font-size: 0.72rem; color: var(--muted2);
    font-family: 'Space Mono', monospace;
    letter-spacing: 0.08em; margin-top: 0.25rem;
  }

  /* ── RIGHT PANEL ────────────────────────────────────────────── */
  .auth-right {
    flex: 1; display: flex; align-items: center; justify-content: center;
    position: relative; padding: 2rem 1.5rem;
    background: var(--black);
    overflow: hidden auto;
  }

  .right-glow {
    position: absolute; z-index: 0;
    width: 400px; height: 400px; border-radius: 50%;
    background: radial-gradient(circle, rgba(20,105,245,0.07) 0%, transparent 70%);
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    pointer-events: none;
  }

  .auth-card {
    position: relative; z-index: 1;
    width: 100%; max-width: 440px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--card-r);
    padding: 2rem 2.2rem;
    box-shadow: 0 24px 64px rgba(0,0,0,0.35);
  }
  [data-theme="light"] .auth-card { box-shadow: 0 8px 40px rgba(13,22,40,0.10); }

  /* mode tabs */
  .mode-tabs {
    display: flex; gap: 0; margin-bottom: 1.8rem;
    border-bottom: 1px solid var(--border);
  }
  .mode-tab {
    flex: 1; background: none; border: none;
    padding: 0.7rem 0; cursor: pointer;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.85rem; font-weight: 500; letter-spacing: 0.02em;
    color: var(--muted); border-bottom: 2px solid transparent;
    margin-bottom: -1px; transition: color 0.2s, border-color 0.2s;
  }
  .mode-tab.active { color: var(--text); border-color: var(--blue); }
  .mode-tab:hover:not(.active) { color: var(--text); }

  /* panels */
  .auth-panel { display: none; }
  .auth-panel.active { display: block; animation: fpUp 0.25s ease; }
  @keyframes fpUp { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }

  .card-heading { margin-bottom: 1.5rem; }
  .card-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.9rem; letter-spacing: 0.04em; color: var(--text);
    margin-bottom: 0.2rem;
  }
  .card-title em { font-style: normal; color: var(--blue); }
  .card-sub { font-size: 0.88rem; color: var(--muted); }

  /* oauth */
  .oauth-row {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-bottom: 1.2rem;
  }
  .oauth-btn {
    display: flex; align-items: center; gap: 0.5rem;
    flex: 1 1 calc(50% - 0.25rem); min-width: 0;
    padding: 0.6rem 0.85rem;
    background: var(--surface3); border: 1px solid var(--border);
    border-radius: var(--radius); cursor: pointer;
    font-family: 'DM Sans', sans-serif; font-size: 0.8rem;
    color: var(--text); transition: border-color 0.2s, background 0.2s;
    white-space: nowrap; overflow: hidden;
  }
  .oauth-btn:hover { border-color: var(--border2); background: var(--surface); }
  .oauth-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
  .oauth-btn span { overflow: hidden; text-overflow: ellipsis; }
  .portal-sso-wrap { margin-bottom: 1.2rem; }
  .portal-sso-btn { width: 100%; justify-content: center; }
  .portal-sso-hint {
    margin-top: 0.55rem; font-size: 0.75rem;
    color: var(--muted); text-align: center; line-height: 1.45;
  }

  /* divider */
  .divider {
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 0.72rem; color: var(--muted2); margin: 1.1rem 0;
    font-family: 'Space Mono', monospace;
  }
  .divider::before, .divider::after {
    content: ''; flex: 1; height: 1px; background: var(--border);
  }

  /* form fields */
  .form-fields { display: flex; flex-direction: column; gap: 0.9rem; }

  .field-row {
    display: flex; gap: 0.75rem;
  }
  .field-row .field-group { flex: 1; min-width: 0; }

  .field-group { display: flex; flex-direction: column; gap: 0.35rem; }
  .field-label {
    font-size: 0.75rem; font-weight: 500; color: var(--muted);
    display: flex; align-items: center; justify-content: space-between;
  }
  .field-label a {
    font-size: 0.72rem; color: var(--blue-light); text-decoration: none;
  }
  .field-label a:hover { text-decoration: underline; }

  .field-input-wrap { position: relative; }
  .field-input {
    width: 100%; padding: 0.65rem 1rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); outline: none;
    color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.88rem;
    transition: border-color 0.2s;
  }
  .field-input:focus { border-color: rgba(20,105,245,0.5); }
  .field-input.error { border-color: rgba(229,83,75,0.5); }
  .field-input::placeholder { color: var(--muted2); }
  .field-input-wrap .field-input { padding-right: 2.6rem; }

  .field-icon {
    position: absolute; right: 0.85rem; top: 50%; transform: translateY(-50%);
    color: var(--muted2); pointer-events: none;
  }
  .field-icon svg { width: 15px; height: 15px; stroke-width: 1.6; }

  .field-toggle-btn {
    position: absolute; right: 0.7rem; top: 50%; transform: translateY(-50%);
    background: none; border: none; cursor: pointer; color: var(--muted2);
    padding: 0.2rem; display: flex; align-items: center; justify-content: center;
  }
  .field-toggle-btn svg { width: 15px; height: 15px; stroke-width: 1.6; }
  .field-toggle-btn:hover { color: var(--text); }

  /* phone row */
  .phone-wrap { display: flex; gap: 0; }
  .phone-prefix {
    padding: 0.65rem 0.85rem; background: var(--surface3);
    border: 1px solid var(--border); border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-size: 0.82rem; color: var(--muted); white-space: nowrap;
    display: flex; align-items: center; gap: 0.35rem;
  }
  .phone-input { border-radius: 0 var(--radius) var(--radius) 0 !important; }

  /* password strength */
  .strength-wrap { display: flex; align-items: center; gap: 0.6rem; margin-top: 0.35rem; }
  .strength-bar { flex: 1; height: 3px; background: var(--border); border-radius: 99px; overflow: hidden; }
  .strength-fill { height: 100%; width: 0; border-radius: 99px; transition: width 0.3s, background 0.3s; }
  .strength-label { font-size: 0.68rem; font-family: 'Space Mono', monospace; color: var(--muted2); white-space: nowrap; }

  /* field error */
  .field-error {
    display: none; align-items: center; gap: 0.35rem;
    font-size: 0.75rem; color: var(--red); margin-top: 0.25rem;
  }
  .field-error.visible { display: flex; }
  .field-error svg { width: 13px; height: 13px; flex-shrink: 0; }

  /* checkbox */
  .check-row { display: flex; align-items: flex-start; gap: 0.6rem; }
  .check-box {
    width: 15px; height: 15px; flex-shrink: 0; margin-top: 2px;
    accent-color: var(--blue); cursor: pointer; border-radius: 2px;
  }
  .check-label { font-size: 0.8rem; color: var(--muted); cursor: pointer; line-height: 1.5; }
  .check-label a { color: var(--blue-light); text-decoration: none; }
  .check-label a:hover { text-decoration: underline; }

  /* ── DCHS.PRO MAIL CARD ──────────────────────────────────────── */
  .mail-card {
    background: linear-gradient(135deg, rgba(20,105,245,0.10) 0%, rgba(10,63,190,0.06) 100%);
    border: 1px solid rgba(20,105,245,0.3);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    display: flex; align-items: center; gap: 0.85rem;
    margin-top: 0.4rem;
  }
  .mail-card-icon {
    width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
    background: linear-gradient(135deg, var(--blue-dark), var(--blue));
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 16px rgba(20,105,245,0.3);
    flex-shrink: 0;
  }
  .mail-card-icon svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 1.8; }
  .mail-card-body { flex: 1; min-width: 0; }
  .mail-card-title {
    font-size: 0.8rem; font-weight: 600; color: var(--text); margin-bottom: 0.15rem;
  }
  .mail-card-title span {
    font-family: 'Space Mono', monospace; font-size: 0.75rem;
    color: var(--blue-light);
  }
  .mail-card-sub { font-size: 0.75rem; color: var(--muted); line-height: 1.45; }
  .mail-card-btn {
    flex-shrink: 0;
    background: var(--blue); color: #fff; border: none;
    padding: 0.45rem 0.9rem; border-radius: var(--radius);
    font-family: 'DM Sans', sans-serif; font-size: 0.76rem;
    font-weight: 600; letter-spacing: 0.04em; cursor: pointer;
    transition: background 0.2s; white-space: nowrap;
  }
  .mail-card-btn:hover { background: var(--blue-light); }
  .mail-card-btn.claimed {
    background: rgba(34,197,94,0.15); color: var(--green);
    border: 1px solid rgba(34,197,94,0.3); cursor: default;
  }

  /* submit btn */
  .btn-submit {
    width: 100%; padding: 0.8rem 1rem;
    background: var(--blue); color: #fff; border: none;
    border-radius: var(--radius); cursor: pointer;
    font-family: 'DM Sans', sans-serif; font-size: 0.9rem; font-weight: 600;
    letter-spacing: 0.03em;
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    transition: background 0.2s, transform 0.15s; margin-top: 0.4rem;
    position: relative; overflow: hidden;
  }
  .btn-submit:hover { background: var(--blue-light); transform: translateY(-1px); }
  .btn-submit:active { transform: none; }
  .btn-submit:disabled { background: var(--surface3); color: var(--muted); transform: none; cursor: not-allowed; }
  .btn-submit svg { width: 14px; height: 14px; stroke-width: 2.5; }
  .spinner {
    display: none; width: 15px; height: 15px; border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff;
    animation: spin 0.6s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }
  .btn-submit.loading .spinner { display: block; }
  .btn-submit.loading .btn-label { opacity: 0.7; }
  .btn-submit.loading svg { display: none; }

  /* divider text */
  .switch-link {
    text-align: center; font-size: 0.8rem; color: var(--muted); margin-top: 1.2rem;
  }
  .switch-link a { color: var(--blue-light); text-decoration: none; }
  .switch-link a:hover { text-decoration: underline; }

  /* forgot back */
  .forgot-back {
    background: none; border: none; cursor: pointer;
    display: flex; align-items: center; gap: 0.4rem;
    font-size: 0.8rem; color: var(--muted); margin-bottom: 1.4rem;
    font-family: 'DM Sans', sans-serif;
    padding: 0; transition: color 0.2s;
  }
  .forgot-back:hover { color: var(--text); }
  .forgot-back svg { width: 14px; height: 14px; }

  /* success state */
  .success-state { display: none; text-align: center; padding: 1.5rem 0; }
  .success-state.visible { display: block; animation: fpUp 0.3s ease; }
  .success-icon {
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.2rem;
    color: var(--green);
  }
  .success-icon svg { width: 26px; height: 26px; }
  .success-title {
    font-family: 'Bebas Neue', sans-serif; font-size: 2rem; letter-spacing: 0.04em;
    color: var(--text); margin-bottom: 0.4rem;
  }
  .success-title em { font-style: normal; color: var(--green); }
  .success-sub { font-size: 0.9rem; color: var(--muted); margin-bottom: 1.5rem; }
  .success-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
  .btn-go {
    padding: 0.7rem 1.6rem; background: var(--blue); color: #fff;
    border-radius: var(--radius); text-decoration: none;
    font-size: 0.88rem; font-weight: 600; letter-spacing: 0.03em;
    transition: background 0.2s;
  }
  .btn-go:hover { background: var(--blue-light); }

  /* error banner */
  .err-banner {
    padding: 0.85rem 1rem; border-radius: var(--radius);
    background: rgba(229,83,75,0.08); border: 1px solid rgba(229,83,75,0.22);
    color: #ffd9d5; font-size: 0.84rem; margin-bottom: 1.2rem;
  }

  /* ── THEME TOGGLE ────────────────────────────────────────────── */
  .theme-toggle {
    position: fixed; top: 1.1rem; right: 1.3rem; z-index: 99;
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--surface2); border: 1px solid var(--border);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    color: var(--muted); transition: color 0.2s, border-color 0.2s;
  }
  .theme-toggle:hover { color: var(--text); border-color: var(--border2); }
  .theme-toggle svg { width: 15px; height: 15px; }
  .icon-sun { display: none; }
  [data-theme="light"] .icon-moon { display: none; }
  [data-theme="light"] .icon-sun { display: block; }

  /* ── TOAST ──────────────────────────────────────────────────── */
  .toast {
    position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%) translateY(16px);
    background: var(--surface3); border: 1px solid var(--border);
    border-radius: 99px; padding: 0.55rem 1.1rem;
    font-size: 0.8rem; color: var(--text);
    display: flex; align-items: center; gap: 0.5rem;
    opacity: 0; transition: opacity 0.25s, transform 0.25s;
    pointer-events: none; white-space: nowrap;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    z-index: 200;
  }
  .toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }
  .toast-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }

  /* ── TURNSTILE ──────────────────────────────────────────────── */
  .turnstile-wrap {
    margin: 0.35rem 0 0.15rem;
    min-height: 65px;
    display: flex;
    justify-content: center;
  }

  /* ── FULL-SCREEN AUTH PRELOADER ─────────────────────────────── */
  .auth-redirect-preloader {
    position: fixed;
    inset: 0;
    z-index: 10050;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--black);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.28s ease, visibility 0.28s ease;
  }
  .auth-redirect-preloader.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  body.auth-redirect-preloader-active { overflow: hidden; }
  .auth-redirect-preloader__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    text-align: center;
    padding: 2rem;
  }
  .auth-redirect-preloader__spinner {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.12);
    border-top-color: var(--blue-light);
    animation: authRedirectSpin 0.85s linear infinite;
  }
  [data-theme="light"] .auth-redirect-preloader__spinner {
    border-color: rgba(12, 16, 24, 0.12);
    border-top-color: var(--blue);
  }
  @keyframes authRedirectSpin { to { transform: rotate(360deg); } }
  .auth-redirect-preloader__message {
    font-family: 'Space Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
    max-width: 280px;
    line-height: 1.5;
  }

  /* ── ACCOUNT TYPE TOGGLE ────────────────────────────────────── */
  .acct-type-toggle {
    display: flex; gap: 0; margin-bottom: 1.4rem;
    background: var(--surface3); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 3px;
  }
  .acct-type-btn {
    flex: 1; background: none; border: none; cursor: pointer;
    padding: 0.52rem 0.75rem; border-radius: calc(var(--radius) - 1px);
    font-family: 'DM Sans', sans-serif; font-size: 0.8rem; font-weight: 500;
    color: var(--muted); display: flex; align-items: center; justify-content: center;
    gap: 0.45rem; transition: background 0.2s, color 0.2s;
    letter-spacing: 0.01em;
  }
  .acct-type-btn.active {
    background: var(--surface); color: var(--text);
    box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  }
  .acct-type-btn svg { width: 14px; height: 14px; stroke-width: 1.8; flex-shrink: 0; }
  .acct-type-badge {
    font-size: 0.6rem; font-family: 'Space Mono', monospace;
    letter-spacing: 0.08em; text-transform: uppercase;
    background: var(--blue-dim); color: var(--blue-light);
    padding: 1px 5px; border-radius: 99px;
    display: inline-block; margin-left: 0.2rem;
  }

  /* ── COMPANY FIELDS SECTION ─────────────────────────────────── */
  .company-fields {
    display: none; flex-direction: column; gap: 0;
    overflow: hidden;
  }
  .company-fields.open {
    display: flex; animation: companyIn 0.28s ease;
  }
  @keyframes companyIn {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: none; }
  }

  .company-section-head {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 0 0.55rem;
    font-size: 0.68rem; font-family: 'Space Mono', monospace;
    letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--blue-light); margin-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
  }
  .company-section-head svg { width: 13px; height: 13px; stroke-width: 1.8; }

  .company-fields-inner {
    display: flex; flex-direction: column; gap: 0.9rem;
    padding-bottom: 0.9rem; border-bottom: 1px solid var(--border); margin-bottom: 0.9rem;
  }

  .field-compliance-hint {
    display: none;
    font-size: 0.7rem; font-family: 'Space Mono', monospace;
    color: var(--blue-light); margin-top: 0.2rem;
    letter-spacing: 0.03em;
  }

  /* optgroup labels */
  .field-select optgroup { color: var(--muted2); font-size: 0.75rem; }

  /* select styling */
  .field-select {
    width: 100%; padding: 0.65rem 1rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); outline: none;
    color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.88rem;
    transition: border-color 0.2s; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237C859A' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 0.85rem center;
    padding-right: 2.2rem;
  }
  .field-select:focus { border-color: rgba(20,105,245,0.5); }

  /* card-title sub-mode label */
  .acct-mode-label {
    display: inline-flex; align-items: center; gap: 0.35rem;
    font-size: 0.65rem; font-family: 'Space Mono', monospace;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--blue-light); margin-bottom: 0.55rem;
    background: var(--blue-dim); padding: 3px 8px; border-radius: 99px;
    border: 1px solid rgba(20,105,245,0.18);
  }
  .acct-mode-label svg { width: 11px; height: 11px; }

  /* ── RESPONSIVE ─────────────────────────────────────────────── */
  @media (max-width: 860px) {
    .auth-left { display: none; }
    .auth-right { background: var(--black); }
  }
  @media (max-width: 480px) {
    .auth-card { padding: 1.5rem 1.2rem; border-radius: 0; border-left: none; border-right: none; }
    .auth-right { padding: 1.5rem 0; align-items: flex-start; }
    .field-row { flex-direction: column; }
    .oauth-btn { flex: 1 1 100%; }
  }