/* Account entry: scoped layout variants followed by shared Gc component rules. */

/* login layout */
.sign-in--login * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--login { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--login .card { background: var(--gc-white); border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); padding: 36px; width: 400px; margin: 20px; }
.sign-in--login .logo { margin-bottom: 22px; }
.sign-in--login .logo img { display: block; height: 26px; width: auto; }
.sign-in--login label { display: block; font-size:14px; font-weight: 600; color: var(--gc-black); margin-bottom: 6px; }
.sign-in--login input { width: 100%; font-size: 14px; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; }
.sign-in--login input:focus { border-color: var(--gc-black); }
.sign-in--login button { width: 100%; font-size: 15px; font-weight: 700; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 14px; }
.sign-in--login button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--login button.ghost { background: var(--gc-white); color: var(--gc-black); border: 1px solid var(--gc-black); }
.sign-in--login button.ghost:hover { background: var(--gc-black); color: var(--gc-white); border-color: var(--gc-black); }
.sign-in--login .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--login .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; }
.sign-in--login .hint a { color: var(--gc-black); font-weight: 600; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--ink); text-decoration-thickness: 2px; }
@media (max-width: 640px) {
.sign-in--login input, .sign-in--login select, .sign-in--login textarea { font-size: 16px; }
 }



/* signup layout */
.sign-in--signup * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--signup { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--signup .card { background: var(--gc-white); border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); padding: 36px; width: 420px; margin: 20px; }
.sign-in--signup .logo { margin-bottom: 6px; }
.sign-in--signup .logo img { display: block; height: 26px; width: auto; }
.sign-in--signup .sub { font-size: 14px; color: var(--gc-ink-2); margin-bottom: 22px; }
.sign-in--signup label { display: block; font-size:14px; font-weight: 600; color: var(--gc-black); margin: 14px 0 6px; }
.sign-in--signup input { width: 100%; font-size: 14.5px; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; }
.sign-in--signup input:focus { border-color: var(--gc-black); }
.sign-in--signup button { width: 100%; font-size: 15px; font-weight: 700; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 20px; }
.sign-in--signup button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--signup .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 8px; }
.sign-in--signup .alt { font-size:14px; color: var(--gc-ink-2); margin-top: 16px; text-align: center; }
.sign-in--signup .alt a { color: var(--gc-black); font-weight: 600; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--ink); text-decoration-thickness: 2px; }
@media (max-width: 640px) {
.sign-in--signup input, .sign-in--signup select, .sign-in--signup textarea { font-size: 16px; }
 }



/* verify layout */
.sign-in--verify * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--verify { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--verify .card { background: var(--gc-white); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 36px; width: 400px; margin: 20px; }
.sign-in--verify .logo { margin-bottom: 18px; }
.sign-in--verify .logo img { display: block; height: 26px; width: auto; }
.sign-in--verify h1 { font-size: 19px; font-weight: 600; color: var(--gc-ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.sign-in--verify p.sub { font-size:14px; color: var(--gc-ink-2); margin-bottom: 20px; line-height: 1.55; }
.sign-in--verify input { width: 100%; font-size: 26px; font-family: Menlo, monospace; font-weight: 700; letter-spacing: 10px; text-align: center; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; color: var(--gc-ink); }
.sign-in--verify input:focus { border-color: var(--gc-black); }
.sign-in--verify button { width: 100%; font-family: var(--gc-font); font-size: 15px; font-weight: 600; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 14px; transition: background .12s ease, color .12s ease, border-color .12s ease; }
.sign-in--verify button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--verify .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--verify .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; line-height: 1.5; }
.sign-in--verify .hint a { color: var(--gc-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--ink); text-decoration-thickness: 2px; }



/* verify-phone layout */
.sign-in--verify-phone * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--verify-phone { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--verify-phone .card { background: var(--gc-white); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 36px; width: 400px; margin: 20px; }
.sign-in--verify-phone .logo { margin-bottom: 18px; }
.sign-in--verify-phone .logo img { display: block; height: 26px; width: auto; }
.sign-in--verify-phone h1 { font-size: 19px; font-weight: 600; color: var(--gc-ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.sign-in--verify-phone p.sub { font-size:14px; color: var(--gc-ink-2); margin-bottom: 20px; line-height: 1.55; }
.sign-in--verify-phone input { width: 100%; font-size: 26px; font-family: Menlo, monospace; font-weight: 700; letter-spacing: 10px; text-align: center; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; color: var(--gc-ink); }
.sign-in--verify-phone input:focus { border-color: var(--gc-black); }
.sign-in--verify-phone button { width: 100%; font-family: var(--gc-font); font-size: 15px; font-weight: 600; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 14px; }
.sign-in--verify-phone button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--verify-phone button.ghost { background: var(--gc-white); color: var(--gc-black); border: 1px solid var(--gc-black); font-size:14px; padding: 10px; }
.sign-in--verify-phone button.ghost:hover { background: var(--gc-black); color: var(--gc-white); }
.sign-in--verify-phone .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--verify-phone .note { font-size:14px; color: var(--gc-black); background: var(--gc-blue); border: 1px solid var(--gc-black); padding: 10px 14px; margin-bottom: 16px; }
.sign-in--verify-phone .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; line-height: 1.5; }
.sign-in--verify-phone .hint a { color: var(--gc-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--ink); text-decoration-thickness: 2px; }



/* verify-text layout */
.sign-in--verify-text * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--verify-text { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--verify-text .card { background: var(--gc-white); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 36px; width: 400px; margin: 20px; }
.sign-in--verify-text .logo { margin-bottom: 18px; }
.sign-in--verify-text .logo img { display: block; height: 26px; width: auto; }
.sign-in--verify-text h1 { font-size: 19px; font-weight: 600; color: var(--gc-ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.sign-in--verify-text p.sub { font-size:14px; color: var(--gc-ink-2); margin-bottom: 20px; line-height: 1.55; }
.sign-in--verify-text input { width: 100%; font-size: 26px; font-family: Menlo, monospace; font-weight: 700; letter-spacing: 10px; text-align: center; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; color: var(--gc-ink); }
.sign-in--verify-text input:focus { border-color: var(--gc-black); }
.sign-in--verify-text button { width: 100%; font-family: var(--gc-font); font-size: 15px; font-weight: 600; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 14px; }
.sign-in--verify-text button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--verify-text .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--verify-text .note { font-size:14px; color: var(--gc-black); background: var(--gc-blue); border: 1px solid var(--gc-black); padding: 10px 14px; margin-bottom: 16px; }
.sign-in--verify-text .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; line-height: 1.5; }
.sign-in--verify-text .hint a { color: var(--gc-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--ink); text-decoration-thickness: 2px; }



/* totp layout */
.sign-in--totp * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--totp { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--totp .card { background: var(--gc-white); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 36px; width: 400px; margin: 20px; }
.sign-in--totp .logo { margin-bottom: 18px; }
.sign-in--totp .logo img { display: block; height: 26px; width: auto; }
.sign-in--totp h1 { font-size: 19px; font-weight: 600; color: var(--gc-ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.sign-in--totp p.sub { font-size:14px; color: var(--gc-ink-2); margin-bottom: 20px; line-height: 1.55; }
.sign-in--totp input { width: 100%; font-size: 26px; font-family: Menlo, monospace; font-weight: 700; letter-spacing: 6px; text-align: center; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; color: var(--gc-ink); }
.sign-in--totp input:focus { border-color: var(--gc-black); }
.sign-in--totp button { width: 100%; font-family: var(--gc-font); font-size: 15px; font-weight: 600; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 14px; transition: background .12s ease, color .12s ease, border-color .12s ease; }
.sign-in--totp button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--totp .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--totp .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; line-height: 1.5; }



/* device-approve layout */
body.sign-in--device-approve { font-family:var(--gc-font);background:var(--gc-paper-2);color:var(--gc-ink);
    min-height:100vh;display:flex;align-items:center;justify-content:center;margin:0;padding:20px }
.sign-in--device-approve .card { background:var(--gc-paper);border:2px solid var(--gc-black);max-width:480px;padding:28px }
.sign-in--device-approve h1 { font-size:20px;margin:0 0 12px }
.sign-in--device-approve p { font-size:14px;line-height:1.6;color:var(--gc-ink-2);margin:0 0 14px }
.sign-in--device-approve b { color:var(--gc-black) }
.sign-in--device-approve dl { margin:0 0 16px;font-size:14px;line-height:1.7 }
.sign-in--device-approve dt { color:var(--gc-ink-2);float:left;width:120px;clear:left }
.sign-in--device-approve dd { margin:0 0 0 120px;color:var(--gc-black);font-weight:600;word-break:break-word }
.sign-in--device-approve ul { font-size:14px;line-height:1.6;color:var(--gc-ink-2);margin:0 0 14px;padding-left:20px }
.sign-in--device-approve code { font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:16px;letter-spacing:1px;
    background:var(--gc-paper-2);border:1px solid var(--gc-black);padding:2px 8px }
.sign-in--device-approve .warn { border-left:4px solid var(--gc-black);padding-left:12px;color:var(--gc-black) }
.sign-in--device-approve button { font-family:var(--gc-font);font-size:14px;font-weight:600;color:var(--gc-black);
    background:var(--gc-yellow);border:2px solid var(--gc-black);padding:12px 20px;cursor:pointer }
.sign-in--device-approve button:hover { background:var(--gc-black);color:var(--gc-yellow) }
.sign-in--device-approve input[type=text] { font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:16px;
    padding:10px;border:2px solid var(--gc-black);background:var(--gc-paper);width:200px;
    text-transform:uppercase;margin:0 0 14px }
.sign-in--device-approve a { color:var(--gc-ink-2);font-size:14px }



/* devices layout */
body.sign-in--devices { font-family:var(--gc-font);background:var(--gc-paper-2);color:var(--gc-ink);
    min-height:100vh;display:flex;align-items:center;justify-content:center;margin:0;padding:20px }
.sign-in--devices .card { background:var(--gc-paper);border:2px solid var(--gc-black);max-width:560px;padding:28px }
.sign-in--devices h1 { font-size:20px;margin:0 0 12px }
.sign-in--devices p { font-size:14px;line-height:1.6;color:var(--gc-ink-2);margin:0 0 14px }
.sign-in--devices b { color:var(--gc-black) }
.sign-in--devices .notice { border-left:4px solid var(--gc-black);padding-left:12px;color:var(--gc-black);margin:0 0 18px }
.sign-in--devices .device { border-top:1px solid var(--gc-black);padding:14px 0;font-size:14px;line-height:1.6 }
.sign-in--devices .device .meta { color:var(--gc-ink-2) }
.sign-in--devices .gone { opacity:.6 }
.sign-in--devices button { font-family:var(--gc-font);font-size:14px;font-weight:600;color:var(--gc-black);
    background:var(--gc-yellow);border:2px solid var(--gc-black);padding:8px 14px;cursor:pointer }
.sign-in--devices button:hover { background:var(--gc-black);color:var(--gc-yellow) }
.sign-in--devices a { color:var(--gc-ink-2);font-size:14px }



/* team-accept layout */
.sign-in--team-accept * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--team-accept { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.sign-in--team-accept .card { background: var(--gc-white); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 36px; width: 440px; margin: 20px; }
.sign-in--team-accept .logo { margin-bottom: 18px; }
.sign-in--team-accept .logo img { display: block; height: 26px; width: auto; }
.sign-in--team-accept h1 { font-size: 19px; font-weight: 600; color: var(--gc-ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.sign-in--team-accept p.sub { font-size:14px; color: var(--gc-ink-2); margin-bottom: 20px; line-height: 1.55; }
.sign-in--team-accept p.sub b { color: var(--gc-black); }
.sign-in--team-accept label { display: block; font-size:14px; font-weight: 600; color: var(--gc-black); margin: 12px 0 6px; }
.sign-in--team-accept input { width: 100%; font-size: 14px; padding: 12px 14px; border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); outline: none; font-family: inherit; }
.sign-in--team-accept input:focus { border-color: var(--gc-black); }
.sign-in--team-accept button { width: 100%; font-family: var(--gc-font); font-size: 15px; font-weight: 700; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 13px; cursor: pointer; margin-top: 16px; }
.sign-in--team-accept button:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--team-accept .err { color: var(--ink); font-weight: 600; font-size:14px; margin-top: 10px; }
.sign-in--team-accept .hint { font-size:14px; color: var(--gc-ink-2); margin-top: 14px; line-height: 1.55; }
.sign-in--team-accept .steps { display: flex; gap: 6px; margin-bottom: 18px; }
.sign-in--team-accept .step { flex: 1; text-align: center; font-size:14px; font-weight: 600; color: var(--gc-ink-2); background: var(--gc-paper-2); border: 1px solid var(--gc-line-soft); padding: 6px 4px; }
.sign-in--team-accept .step.on { color: var(--gc-black); background: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--team-accept code.secret { display: block; font-family: Menlo, monospace; font-size: 15px; font-weight: 700; letter-spacing: 1px; background: var(--gc-paper-2); border: 1px solid var(--gc-line-soft); padding: 10px 14px; margin: 10px 0 14px; user-select: all; word-break: break-all; }
.sign-in--team-accept ol { font-size:14px; color: var(--gc-ink-2); margin: 8px 0 4px; padding-left: 18px; line-height: 1.7; }
.sign-in--team-accept ol a { color: var(--gc-black); font-weight: 600; }
.sign-in--team-accept input.code { font-size: 26px; font-family: Menlo, monospace; font-weight: 700; letter-spacing: 6px; text-align: center; }
@media (max-width: 640px) {
.sign-in--team-accept input { font-size: 16px; }
.sign-in--team-accept input.code { font-size: 22px; }
 }



/* welcome layout */
.sign-in--welcome * { box-sizing: border-box; margin: 0; padding: 0; }
body.sign-in--welcome { font-family: var(--gc-font); background: var(--gc-paper-2); color: var(--gc-ink); line-height: 1.55; -webkit-font-smoothing: antialiased; }
.sign-in--welcome .wrap { max-width: 640px; margin: 0 auto; padding: 40px 20px 80px; }
.sign-in--welcome .logo { margin-bottom: 26px; }
.sign-in--welcome .logo img { display: block; height: 28px; width: auto; }
.sign-in--welcome h1 { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; color: var(--gc-black); margin-bottom: 6px; }
.sign-in--welcome .sub { font-size: 15px; color: var(--gc-ink-2); margin-bottom: 26px; }
.sign-in--welcome .step { background: var(--gc-white); border: 1px solid var(--gc-line); border-radius: var(--radius-none); padding: 22px 24px; margin-bottom: 14px; }
.sign-in--welcome .step h2 { font-size: 15px; font-weight: 600; color: var(--gc-black); margin-bottom: 8px; }
.sign-in--welcome .step h2 .n { display: inline-flex; width: 24px; height: 24px; border-radius: var(--radius-none); background: var(--gc-yellow); color: var(--gc-black); font-size:14px; font-weight: 700; align-items: center; justify-content: center; margin-right: 10px; vertical-align: middle; }
.sign-in--welcome .step p { font-size:14px; color: var(--gc-ink-2); }
.sign-in--welcome .wrap p a, .sign-in--welcome .wrap ol a { color: var(--gc-black); font-weight: 600; text-decoration: underline; text-decoration-color: var(--ink); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.sign-in--welcome pre { position: relative; background: var(--gc-card-dark); color: var(--on-ink-2); border-radius: var(--radius-none); padding: 14px 44px 14px 16px; font-size:14px; overflow-x: auto; margin-top: 10px; font-family: Menlo, monospace; line-height: 1.6; }
.sign-in--welcome .keybox { display: flex; align-items: center; gap: 10px; background: var(--gc-blue); border: 1px solid var(--gc-black); border-radius: var(--radius-none); padding: 12px 12px 12px 16px; margin-top: 10px; }
.sign-in--welcome .keybox code { flex: 1; font-family: Menlo, monospace; font-size:14px; font-weight: 700; color: var(--gc-black); word-break: break-all; }
.sign-in--welcome .copy-btn { flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border: 1px solid var(--gc-black); border-radius: var(--radius-none); background: var(--gc-white); color: var(--gc-black); cursor: pointer; transition: background .15s, color .15s; }
.sign-in--welcome .copy-btn:hover { background: var(--gc-yellow); color: var(--gc-black); }
.sign-in--welcome .copy-btn svg { width: 15px; height: 15px; }
.sign-in--welcome pre .copy-btn { position: absolute; top: 8px; right: 8px; background: var(--gc-card-dark-2); border-color: var(--surface-ink-2); color: var(--gc-yellow); }
.sign-in--welcome pre .copy-btn:hover { background: var(--surface-ink-2); color: var(--gc-yellow); }
.sign-in--welcome .copy-btn.copied { color: var(--gc-black); background: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--welcome details.client { border: 1px solid var(--gc-line-soft); border-radius: var(--radius-none); margin-top: 10px; background: var(--gc-white); }
.sign-in--welcome details.client summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 8px; padding: 12px 14px; font-size: 14px; font-weight: 600; color: var(--gc-black); }
.sign-in--welcome details.client summary::-webkit-details-marker { display: none; }
.sign-in--welcome details.client summary::after { content: "+"; margin-left: auto; color: var(--gc-black); font-weight: 700; }
.sign-in--welcome details.client[open] summary::after { content: "–"; }
.sign-in--welcome details.client .inner { padding: 0 14px 14px; }
.sign-in--welcome details.client ol { margin: 6px 0 0 18px; font-size:14px; color: var(--gc-ink-2); }
.sign-in--welcome details.client ol li { margin-bottom: 4px; }
.sign-in--welcome details.client ol li b { color: var(--gc-ink); font-weight: 600; }
.sign-in--welcome .inner p code { font-family: Menlo, monospace; font-size:14px; background: var(--line-soft); padding: 1px 5px; }
.sign-in--welcome .warn { font-size:14px; color: var(--gc-ink-2); font-weight: 600; margin-top: 6px; }
.sign-in--welcome a.btn { display: inline-block; font-size: 14px; font-weight: 600; color: var(--gc-black); background: var(--gc-yellow); border: 2px solid var(--gc-yellow); border-radius: var(--radius-none); padding: 11px 22px; text-decoration: none; margin-top: 10px; transition: background .12s, color .12s, border-color .12s; }
.sign-in--welcome a.btn:hover { background: var(--gc-black); color: var(--gc-yellow); border-color: var(--gc-black); }
.sign-in--welcome a.skip { font-size:14px; color: var(--gc-ink-2); margin-left: 12px; }
.sign-in--welcome .step { border-radius: var(--radius-none) }
.sign-in--welcome .step:first-of-type { background:var(--surface-sunk) }
.sign-in--welcome .btn { border-radius: var(--radius-none);min-height:48px }
.sign-in--welcome .copy-btn { width:44px;height:44px }
.sign-in--welcome .wrap a:focus-visible, .sign-in--welcome .wrap button:focus-visible, .sign-in--welcome .wrap summary:focus-visible { outline:3px solid var(--focus);outline-offset:2px }
.sign-in--welcome h1 { font-size:32px;font-weight:500;letter-spacing:-.03em }
.sign-in--welcome .sub { margin-top:14px }



/* channel-link layout */
body.sign-in--channel-link { font-family:var(--gc-font);background:var(--gc-paper-2);color:var(--gc-ink);
    min-height:100vh;display:flex;align-items:center;justify-content:center;margin:0 }
.sign-in--channel-link .card { background:var(--gc-paper);border:2px solid var(--gc-black);max-width:460px;padding:28px }
.sign-in--channel-link h1 { font-size:20px;margin:0 0 12px }
.sign-in--channel-link p { font-size:14px;line-height:1.6;color:var(--gc-ink-2);margin:0 0 14px }
.sign-in--channel-link b { color:var(--gc-black) }
.sign-in--channel-link button { font-family:var(--gc-font);font-size:14px;font-weight:600;color:var(--gc-black);
    background:var(--gc-yellow);border:2px solid var(--gc-black);padding:12px 20px;cursor:pointer }
.sign-in--channel-link button:hover { background:var(--gc-black);color:var(--gc-yellow) }
.sign-in--channel-link a { color:var(--gc-ink-2);font-size:14px }



/* slack-link layout */
body.sign-in--slack-link { font-family:var(--gc-font);background:var(--gc-paper-2);color:var(--gc-ink);
    min-height:100vh;display:flex;align-items:center;justify-content:center;margin:0 }
.sign-in--slack-link .card { background:var(--gc-paper);border:2px solid var(--gc-black);max-width:460px;padding:28px }
.sign-in--slack-link h1 { font-size:20px;margin:0 0 12px }
.sign-in--slack-link p { font-size:14px;line-height:1.6;color:var(--gc-ink-2);margin:0 0 14px }
.sign-in--slack-link b { color:var(--gc-black) }
.sign-in--slack-link button { font-family:var(--gc-font);font-size:14px;font-weight:600;color:var(--gc-black);
    background:var(--gc-yellow);border:2px solid var(--gc-black);padding:12px 20px;cursor:pointer }
.sign-in--slack-link button:hover { background:var(--gc-black);color:var(--gc-yellow) }
.sign-in--slack-link a { color:var(--gc-ink-2);font-size:14px }


/* Shared GcCard / GcField / GcButton / type rules, kept after layout variants. */
body.sign-in { margin: 0; padding: var(--space-24) var(--space-16); min-height: 100vh; background: var(--surface-sunk); color: var(--ink); font: var(--type-body); -webkit-font-smoothing: antialiased; }
body.sign-in * { box-sizing: border-box; }
body.sign-in .card { width: 100%; max-width: var(--column-read); margin: auto; padding: var(--space-32); background: var(--surface-card); border: var(--hairline) solid var(--line); border-radius: var(--radius-none); box-shadow: var(--shadow-none); }
body.sign-in .logo img { height: 20px; width: auto; }
body.sign-in h1 { font: var(--type-display-m); letter-spacing: var(--type-display-m-tracking); margin: 0 0 var(--space-16); text-wrap: balance; }
body.sign-in h2 { font: var(--type-heading); }
body.sign-in p, body.sign-in .sub { font: var(--type-body); color: var(--text-secondary); }
body.sign-in label { font: var(--type-field-label); color: var(--text-primary); }
body.sign-in input:not([type=checkbox]):not([type=radio]):not([type=hidden]), body.sign-in select, body.sign-in textarea {
  width: 100%; min-width: 0; max-width: 100%; min-height: var(--field-height); padding: var(--space-12);
  font: var(--type-body); color: var(--ink); background: var(--paper); border: var(--hairline) solid var(--line-control); border-radius: var(--radius-none); box-shadow: var(--shadow-none);
}
body.sign-in input.code { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: .2em; text-align: center; }
body.sign-in input:is([type=checkbox],[type=radio]) { width: 24px; height: 24px; accent-color: var(--ink); flex: 0 0 24px; }
body.sign-in label:has(input:is([type=checkbox],[type=radio])) { min-height: var(--target-min); }
body.sign-in button, body.sign-in a.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-8);
  min-width: var(--target-min); min-height: var(--target-action-desktop); padding: var(--space-12) var(--space-24);
  font: var(--type-button); background: var(--action-primary); color: var(--action-primary-label);
  border: var(--hairline) solid var(--line); border-radius: var(--radius-none); box-shadow: var(--shadow-none); text-decoration: none; cursor: pointer;
}
body.sign-in button:hover, body.sign-in a.btn:hover { background: var(--ink); color: var(--yellow); }
body.sign-in button.ghost { background: var(--paper); color: var(--ink); }
body.sign-in button:disabled { opacity: .5; cursor: not-allowed; }
body.sign-in .copy-btn { width: var(--target-min); height: var(--target-min); min-height: var(--target-min); padding: var(--space-8); }
body.sign-in :is(a,button,input,select,textarea,summary):focus-visible { outline: var(--focus-width) solid var(--focus); outline-offset: 2px; }
body.sign-in :is(.hint,small,.warn,.device .meta) { font: var(--type-caption); }
body.sign-in :is(.err,.error) { padding: var(--space-12); color: var(--danger); background: var(--danger-bg); border-left: 3px solid var(--danger); font: var(--type-body-s); }
body.sign-in a { color: var(--ink); text-decoration-color: var(--ink); text-underline-offset: 3px; }
body.sign-in summary { min-height: var(--target-min); padding-block: var(--space-12); cursor: pointer; }
body.sign-in .step { border-radius: var(--radius-none); }
body.sign-in .step h2 { font: var(--type-heading); }
body.sign-in .step p { font: var(--type-body); }
body.sign-in pre, body.sign-in code { font-size: 14px; overflow-wrap: anywhere; }
body.sign-in .wrap { width: 100%; max-width: 640px; }
body.sign-in dl { overflow-wrap: anywhere; }
@media (pointer: coarse) { body.sign-in button:not(.copy-btn), body.sign-in a.btn { min-height: var(--target-action-touch); } }
@media (max-width: 640px) {
  body.sign-in { align-items: flex-start; padding: var(--space-16); }
  body.sign-in .card { padding: var(--space-24); }
  body.sign-in .wrap { padding: var(--space-16) 0 var(--space-48); }
  body.sign-in dt { float: none; width: auto; }
  body.sign-in dd { margin-left: 0; margin-bottom: var(--space-12); }
}
body.sign-in .sub { margin-bottom: var(--space-24); }