/* I-STEM — Authentication (sign in / register) */

.auth-wrap {
  position: relative; min-height: calc(100vh - 112px);
  display: grid; place-items: center; padding: 46px 24px 60px;
  background:
    radial-gradient(70% 60% at 85% -5%, var(--brand-50), transparent 60%),
    radial-gradient(60% 60% at 0% 105%, var(--cyan-50), transparent 55%),
    var(--bg);
}
.auth-card {
  width: min(1040px, 100%); display: grid; grid-template-columns: 0.92fr 1.08fr;
  background: var(--card); border: 1px solid var(--line); border-radius: 24px;
  overflow: hidden; box-shadow: var(--shadow-lg);
}
@media (max-width: 880px){ .auth-card { grid-template-columns: 1fr; } }

/* brand side */
.auth-side {
  position: relative; overflow: hidden; color: #fff; padding: 44px 40px;
  display: flex; flex-direction: column;
  background: radial-gradient(120% 90% at 100% 0%, var(--navy-600), transparent 55%), linear-gradient(160deg, var(--navy-700), var(--navy-900));
}
.auth-side::before { content:""; position:absolute; inset:0; background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1.4px); background-size: 24px 24px; opacity:.5; mask-image: linear-gradient(180deg, #000, transparent 80%); }
.auth-side > * { position: relative; }
.auth-chip { display: inline-flex; background: #fff; border-radius: 10px; padding: 8px 12px; box-shadow: 0 2px 12px rgba(0,0,0,.2); align-self: flex-start; }
.auth-side h2 { color: #fff; font-size: 28px; line-height: 1.12; margin-top: 28px; max-width: 14ch; }
.auth-side .as-lede { color: #c7cdf0; margin-top: 14px; font-size: 15px; line-height: 1.6; max-width: 38ch; }
.as-list { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 14px; }
.as-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: #e4e7fa; }
.as-list .as-ic { width: 32px; height: 32px; border-radius: 9px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.as-list b { color: #fff; font-weight: 600; display: block; font-size: 14.5px; }
.as-list span { color: #aab2e0; font-size: 13px; }
.as-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 30px; }
.as-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 600; color: #d6dafb; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); padding: 6px 10px; border-radius: 8px; }
@media (max-width: 880px){ .auth-side { padding: 32px 28px; } .auth-side h2 { font-size: 24px; } .as-badges { padding-top: 22px; } }
@media (max-width: 560px){ .auth-side .as-list, .auth-side .as-lede { display: none; } .auth-side h2 { margin-top: 18px; } }

/* form side */
.auth-main { padding: 44px 46px; display: flex; flex-direction: column; }
@media (max-width: 560px){ .auth-main { padding: 30px 24px; } }
.auth-main h1 { font-size: 26px; }
.auth-main .am-sub { color: var(--ink-2); margin-top: 8px; font-size: 15px; }
.auth-back { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-3); font-weight: 600; font-size: 13.5px; margin-bottom: 18px; cursor: pointer; }
.auth-back:hover { color: var(--brand); }

.sso-row { display: grid; gap: 10px; margin-top: 22px; }
.sso-btn { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border: 1px solid var(--line-2); border-radius: 11px; background: var(--card); font-weight: 600; font-size: 14.5px; color: var(--ink); transition: all .15s; }
.sso-btn:hover { border-color: var(--brand-400); background: var(--brand-50); }
.sso-btn .sso-ic { width: 28px; height: 28px; border-radius: 7px; display: grid; place-items: center; flex-shrink: 0; color: #fff; }
.sso-btn span.sso-tag { margin-left: auto; font-size: 11px; font-weight: 600; color: var(--ink-3); background: var(--bg-2); padding: 3px 8px; border-radius: 6px; }

.auth-or { display: flex; align-items: center; gap: 14px; margin: 22px 0; color: var(--ink-3); font-size: 12.5px; font-weight: 600; }
.auth-or::before, .auth-or::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.auth-form { display: grid; gap: 16px; }
.pw-field { position: relative; }
.pw-field .field { padding-right: 44px; }
.pw-toggle { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background: none; border: 0; color: var(--ink-3); padding: 8px; border-radius: 7px; }
.pw-toggle:hover { color: var(--brand); background: var(--bg-2); }
.auth-rowsplit { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.auth-link { color: var(--brand); font-weight: 600; font-size: 13.5px; cursor: pointer; }
.auth-link:hover { text-decoration: underline; }
.auth-hint { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--ink-3); background: var(--bg); border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; }
.auth-hint .ic { color: var(--brand); flex-shrink: 0; }
.auth-foot { margin-top: 22px; text-align: center; font-size: 14px; color: var(--ink-2); }

/* role selector */
.role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 420px){ .role-grid { grid-template-columns: 1fr; } }
.role-opt { display: flex; gap: 11px; align-items: flex-start; padding: 13px 14px; border: 1.5px solid var(--line-2); border-radius: 12px; cursor: pointer; transition: all .14s; background: var(--card); text-align: left; }
.role-opt:hover { border-color: var(--brand-400); }
.role-opt.active { border-color: var(--brand); background: var(--brand-50); }
.role-opt .role-ic { width: 34px; height: 34px; border-radius: 9px; background: var(--bg-2); color: var(--brand); display: grid; place-items: center; flex-shrink: 0; }
.role-opt.active .role-ic { background: var(--brand); color: #fff; }
.role-tx { display: block; min-width: 0; }
.role-tx b { display: block; font-size: 13.5px; line-height: 1.2; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.role-tx span { display: block; font-size: 12px; color: var(--ink-3); line-height: 1.3; margin-top: 2px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px){ .grid-2 { grid-template-columns: 1fr; } }
.input-prefix { display: flex; align-items: stretch; border: 1px solid var(--line-2); border-radius: 10px; overflow: hidden; }
.input-prefix:focus-within { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-50); }
.input-prefix .ipx { display: flex; align-items: center; padding: 0 12px; background: var(--bg-2); color: var(--ink-2); font-weight: 600; font-size: 14.5px; border-right: 1px solid var(--line-2); }
.input-prefix input { border: 0; outline: 0; flex: 1; padding: 12px 14px; font-family: var(--ff-body); font-size: 15px; background: var(--card); color: var(--ink); min-width: 0; }

/* captcha */
.captcha { display: flex; align-items: center; gap: 12px; }
.captcha-box { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border: 1px solid var(--line-2); border-radius: 10px; background: repeating-linear-gradient(100deg, var(--bg-2) 0 8px, var(--card) 8px 16px); }
.captcha-text { font-family: "IBM Plex Mono", monospace; font-size: 19px; font-weight: 500; letter-spacing: .22em; color: var(--ink); font-style: italic; text-decoration: line-through; text-decoration-color: var(--line-2); user-select: none; }
.captcha-reload { background: none; border: 0; color: var(--ink-3); padding: 6px; border-radius: 7px; }
.captcha-reload:hover { color: var(--brand); background: var(--bg-2); }

.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--ink-2); line-height: 1.5; cursor: pointer; }
.consent input { margin-top: 2px; accent-color: var(--brand); width: 16px; height: 16px; flex-shrink: 0; }

/* OTP step */
.otp-wrap { text-align: center; }
.otp-ic { width: 56px; height: 56px; border-radius: 15px; background: var(--brand-50); color: var(--brand); display: grid; place-items: center; margin: 0 auto 16px; }
.otp-row { display: flex; gap: 10px; justify-content: center; margin: 22px 0; }
.otp-box { width: 50px; height: 58px; text-align: center; font-family: var(--ff-display); font-size: 24px; font-weight: 600; border: 1.5px solid var(--line-2); border-radius: 12px; color: var(--ink); background: var(--card); }
.otp-box:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-50); }
@media (max-width: 420px){ .otp-box { width: 42px; height: 50px; font-size: 20px; } }
.otp-resend { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.auth-success-ic { color: var(--green); display: flex; justify-content: center; margin-bottom: 14px; }