/* =====================================================================
   NcBose HCS — Sign in / Sign up / Phone verification dialog (#modal-auth)
   Self-contained: works with or without ncbose-ds.css on the page.
   The visible step is derived from which form is not [hidden] (set by
   auth.js), using :has() — so auth.js needs no extra state handling.
   ===================================================================== */

#modal-auth {
    --a-primary: var(--nb-primary, #2BB5A0);
    --a-primary-hover: var(--nb-primary-hover, #1A9D8A);
    --a-deep: var(--nb-primary-deep, #006B5D);
    --a-ink: var(--nb-ink, #0F2A28);
    --a-text: var(--nb-text, #3D4946);
    --a-muted: var(--nb-text-muted, #4A6360);
    --a-canvas: var(--nb-canvas, #F4FBFA);
    --a-tint: var(--nb-surface-tint, #E6F6F4);
    --a-border: var(--nb-border, #D4ECE7);
    --a-border-strong: var(--nb-border-strong, #C3E5DF);
    --a-critical: #D92D20;
    --a-critical-soft: #FEF1F0;
    --a-critical-line: #FBCFCB;
    --a-success: #0F766E;
    --a-success-soft: #ECFDF5;
    --a-ring: 0 0 0 3px rgba(43, 181, 160, 0.25);
    --a-font: var(--nb-font-body, 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif);
    --a-display: var(--nb-font-display, 'Epilogue', 'Inter', system-ui, sans-serif);
    font-family: var(--a-font);
    color: var(--a-text);
}
#modal-auth * { box-sizing: border-box; }

/* ---------- Dialog frame ---------- */
#modal-auth .modal-dialog { max-width: 470px; transition: max-width .2s ease; }
#modal-auth:has(#modal-auth-form-sign-up:not([hidden])) .modal-dialog { max-width: 580px; }

#modal-auth .modal-content {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(195, 229, 223, 0.7);
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0 24px 60px -12px rgba(15, 42, 40, 0.28);
}
#modal-auth .modal-content::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--a-primary), var(--a-deep));
}
#modal-auth .modal-body { padding: 32px; }

.modal-backdrop.show { opacity: .55; background: #0F2A28; }

/* ---------- Top controls ---------- */
#modal-auth .nb-auth__top { display: flex; align-items: center; justify-content: flex-end; min-height: 0; }
#modal-auth .nb-auth__close {
    position: absolute; top: 18px; right: 18px; z-index: 2;
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border: 0; border-radius: 10px;
    background: transparent; color: var(--a-muted);
    cursor: pointer;
}
#modal-auth .nb-auth__close:hover { background: var(--a-canvas); color: var(--a-ink); }
#modal-auth .nb-auth__back {
    display: none;
    align-items: center; gap: 8px;
    padding: 6px 8px; margin: -6px 0 0 -8px;
    border: 0; border-radius: 8px;
    background: transparent;
    color: var(--a-ink); font-size: 14px; font-weight: 600;
    cursor: pointer;
}
#modal-auth .nb-auth__back:hover { background: var(--a-canvas); }

/* phone-verification step: back link on, brand header + tabs off */
#modal-auth:has(#modal-auth-form-contact-verification:not([hidden])) .nb-auth__top {
    justify-content: flex-start;
    margin: -8px -32px 24px; padding: 0 32px 18px;
    border-bottom: 1px solid var(--a-canvas);
}
#modal-auth:has(#modal-auth-form-contact-verification:not([hidden])) .nb-auth__back { display: inline-flex; }
#modal-auth:has(#modal-auth-form-contact-verification:not([hidden])) .nb-auth__head,
#modal-auth:has(#modal-auth-form-contact-verification:not([hidden])) .nb-auth__switch { display: none; }

/* ---------- Brand header ---------- */
#modal-auth .nb-auth__head { display: flex; align-items: center; gap: 16px; margin: 0 40px 24px 0; }
#modal-auth .nb-auth__logo {
    flex-shrink: 0;
    width: 56px; height: 56px; padding: 4px;
    border: 1px solid var(--a-border); border-radius: 14px;
    background: #FFFFFF;
    box-shadow: 0 4px 12px rgba(15, 42, 40, 0.06);
    object-fit: contain;
}
#modal-auth .nb-auth__title {
    margin: 0;
    font-family: var(--a-display);
    font-size: 24px; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em;
    color: var(--a-ink);
}
#modal-auth .nb-auth__subtitle { margin: 4px 0 0; font-size: 14px; color: var(--a-muted); }

/* ---------- Sign in / Sign up switch ---------- */
#modal-auth .nb-auth__switch {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
    margin: 0 0 24px; padding: 4px;
    border: 1px solid var(--a-border); border-radius: 14px;
    background: var(--a-canvas);
}
#modal-auth .nb-auth__tab {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 42px;
    border: 0; border-radius: 10px;
    background: transparent;
    color: var(--a-muted); font-family: var(--a-font); font-size: 15px; font-weight: 600;
    cursor: pointer;
    transition: background-color .15s ease, color .15s ease, box-shadow .15s ease;
}
#modal-auth .nb-auth__tab:hover { color: var(--a-deep); }
#modal-auth .nb-auth__tab:focus-visible { outline: none; box-shadow: var(--a-ring); }
#modal-auth:has(#modal-auth-form-sign-in:not([hidden])) #modal-auth-button-sign-in,
#modal-auth:has(#modal-auth-form-sign-up:not([hidden])) #modal-auth-button-sign-up {
    background: #FFFFFF; color: var(--a-deep);
    box-shadow: 0 1px 3px rgba(15, 42, 40, 0.08), 0 0 0 1px rgba(195, 229, 223, 0.6);
}

/* ---------- Icons ---------- */
#modal-auth .nb-auth__ico {
    width: 18px; height: 18px; flex-shrink: 0;
    fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- Fields ---------- */
#modal-auth .nb-auth__form { margin: 0; }
#modal-auth .nb-auth__field { margin: 0 0 18px; }
#modal-auth .nb-auth__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 16px; }
#modal-auth .nb-auth__grid .nb-auth__field { margin-bottom: 14px; }
#modal-auth .nb-auth__label {
    display: block; margin: 0 0 7px;
    font-size: 12px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--a-ink);
}
#modal-auth .nb-auth__label em { font-style: normal; color: var(--a-critical); }
#modal-auth .nb-auth__label-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
#modal-auth .nb-auth__hint { font-size: 12.5px; color: var(--a-muted); }

#modal-auth .nb-auth__input {
    display: flex; flex-wrap: nowrap; align-items: center; gap: 10px;
    width: 100%; height: 48px; padding: 0 6px 0 14px;
    border: 1px solid var(--a-border); border-radius: 12px;
    background: #FFFFFF;
    transition: border-color .15s ease, box-shadow .15s ease;
}
#modal-auth .nb-auth__input:focus-within { border-color: var(--a-primary); box-shadow: var(--a-ring); }
#modal-auth .nb-auth__input:has(input.is-invalid) { border-color: var(--a-critical); box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.12); }
#modal-auth .nb-auth__input input {
    flex: 1; min-width: 0; height: 100%;
    padding: 0; border: 0; outline: 0; background: transparent; box-shadow: none;
    font-family: var(--a-font); font-size: 15.5px; color: var(--a-ink);
}
#modal-auth .nb-auth__input input::placeholder { color: #8A9A97; }
#modal-auth .nb-auth__lead { color: var(--a-muted); }
#modal-auth .nb-auth__prefix {
    display: inline-flex; align-items: center; align-self: stretch;
    margin-left: -14px; padding: 0 12px;
    border-right: 1px solid var(--a-border); border-radius: 12px 0 0 12px;
    background: var(--a-canvas);
    font-size: 14px; font-weight: 600; color: var(--a-ink);
}
#modal-auth .nb-auth__eye {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    border: 0; border-radius: 8px; background: transparent;
    color: var(--a-muted); cursor: pointer;
}
#modal-auth .nb-auth__eye:hover { background: var(--a-canvas); color: var(--a-ink); }

#modal-auth .nb-auth__rule { margin: -4px 0 18px; font-size: 12.5px; line-height: 1.5; color: var(--a-muted); }

/* validation messages from jquery-validate (div.invalid-feedback.text-right) */
#modal-auth .invalid-feedback {
    margin-top: 6px;
    font-size: 12.5px; font-weight: 500; line-height: 1.4;
    color: var(--a-critical);
}
#modal-auth .invalid-feedback.text-right { text-align: left !important; }
#modal-auth .invalid-feedback::first-letter { text-transform: uppercase; }
#modal-auth .nb-auth__field-error { display: block; font-size: 12.5px; color: var(--a-critical); }
#modal-auth .nb-auth__field-error:empty { display: none; }

#modal-auth .nb-auth__link {
    padding: 0; border: 0; background: none;
    font-size: 13.5px; font-weight: 600; color: var(--a-deep);
    text-decoration: none; cursor: pointer;
}
#modal-auth .nb-auth__link:hover { color: var(--a-primary-hover); text-decoration: underline; }

/* checkbox rows */
#modal-auth .nb-auth__check {
    display: flex; align-items: flex-start; gap: 10px;
    margin: 0 0 22px;
    font-size: 14px; font-weight: 400; line-height: 1.45; color: var(--a-text);
    cursor: pointer;
}
#modal-auth .nb-auth__check input {
    flex-shrink: 0; width: 18px; height: 18px; margin: 1px 0 0;
    accent-color: var(--a-primary); cursor: pointer;
}
#modal-auth .nb-auth__check a { font-weight: 600; color: var(--a-deep); }
#modal-auth .nb-auth__terms { padding: 0; min-height: 0; margin-bottom: 20px; }
#modal-auth .nb-auth__terms .nb-auth__check { margin: 0; }

/* account type tiles */
#modal-auth .nb-auth__roles {
    display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px;
    padding: 5px;
    border: 1px solid var(--a-border); border-radius: 14px;
    background: var(--a-canvas);
}
#modal-auth .nb-auth__role {
    position: relative;
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    margin: 0; padding: 12px 4px 10px;
    border: 1px solid transparent; border-radius: 10px;
    font-size: 12.5px; font-weight: 500; color: var(--a-muted); text-align: center;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
#modal-auth .nb-auth__role input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
#modal-auth .nb-auth__role:hover { color: var(--a-deep); background: rgba(255, 255, 255, 0.7); }
#modal-auth .nb-auth__role:has(input:checked) {
    border-color: var(--a-primary); background: #FFFFFF; color: var(--a-deep); font-weight: 600;
    box-shadow: 0 1px 3px rgba(15, 42, 40, 0.08);
}
#modal-auth .nb-auth__role:has(input:focus-visible) { box-shadow: var(--a-ring); }
#modal-auth .nb-auth__role .nb-auth__ico { width: 20px; height: 20px; }
#modal-auth .nb-auth__field:has(input[name="account-type"].is-invalid) .nb-auth__roles { border-color: var(--a-critical); }

/* captcha */
#modal-auth .nb-auth__captcha { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
#modal-auth .nb-auth__captcha-img {
    width: 150px; height: 48px;
    border: 1px solid var(--a-border); border-radius: 12px;
    background: var(--a-canvas);
    object-fit: cover;
}
#modal-auth .nb-auth__icon-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px;
    border: 1px solid var(--a-border); border-radius: 12px;
    background: #FFFFFF; color: var(--a-muted); cursor: pointer;
}
#modal-auth .nb-auth__icon-btn:hover { border-color: var(--a-primary); color: var(--a-deep); }
#modal-auth .nb-auth__captcha-input { flex: 1; min-width: 140px; width: auto; }
#modal-auth .nb-auth__captcha .invalid-feedback { flex-basis: 100%; margin-top: 0; }

/* ---------- Buttons ---------- */
#modal-auth .nb-auth__actions { display: grid; grid-template-columns: 1fr auto; gap: 12px; }
#modal-auth .nb-auth__btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 50px; padding: 0 24px;
    border: 1px solid transparent; border-radius: 12px;
    font-family: var(--a-font); font-size: 15.5px; font-weight: 600; line-height: 1;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease, color .15s ease, box-shadow .15s ease, transform .1s ease;
}
#modal-auth .nb-auth__btn:active:not(:disabled) { transform: scale(0.98); }
#modal-auth .nb-auth__btn:focus-visible { outline: none; box-shadow: var(--a-ring); }
#modal-auth .nb-auth__btn--primary { background: var(--a-primary); color: #FFFFFF; }
#modal-auth .nb-auth__btn--primary:hover:not(:disabled) { background: var(--a-primary-hover); box-shadow: 0 10px 24px -8px rgba(43, 181, 160, 0.55); }
#modal-auth .nb-auth__btn--secondary { background: #FFFFFF; border-color: var(--a-border); color: var(--a-ink); }
#modal-auth .nb-auth__btn--secondary:hover { background: var(--a-canvas); border-color: var(--a-primary); }
#modal-auth .nb-auth__btn--soft { gap: 0; height: 38px; padding: 0 14px; background: var(--a-tint); color: var(--a-deep); font-size: 14px; white-space: pre; }
#modal-auth .nb-auth__btn--soft:hover:not(:disabled) { background: #D5F0EB; }
#modal-auth .nb-auth__btn--block { width: 100%; }
#modal-auth .nb-auth__btn:disabled { opacity: .6; cursor: not-allowed; }
#modal-auth .nb-auth__btn--soft:disabled { opacity: 1; background: var(--a-canvas); color: #8A9A97; }

#modal-auth .nb-auth__note {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    margin: 16px 0 0; font-size: 12.5px; color: var(--a-muted); text-align: center;
}
#modal-auth .nb-auth__note .nb-auth__ico { width: 15px; height: 15px; color: var(--a-primary); }

/* ---------- Alerts injected by auth.js (Bootstrap .alert markup) ---------- */
#modal-auth .alert {
    position: relative;
    margin: 0 0 18px !important;
    padding: 12px 40px 12px 14px;
    border: 1px solid; border-radius: 12px;
    font-size: 14px; line-height: 1.45;
}
#modal-auth .alert-danger { background: var(--a-critical-soft); border-color: var(--a-critical-line); color: #B42318; }
#modal-auth .alert-success { background: var(--a-success-soft); border-color: rgba(16, 185, 129, 0.3); color: var(--a-success); }
#modal-auth .alert .close {
    position: absolute; top: 50%; right: 10px; transform: translateY(-50%);
    padding: 2px 6px; font-size: 20px; line-height: 1; opacity: .6; color: inherit; text-shadow: none;
}

/* ---------- Phone verification step ---------- */
#modal-auth .nb-auth__otp-head { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 22px; }
#modal-auth .nb-auth__otp-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 56px; height: 56px; margin-bottom: 14px;
    border: 1px solid var(--a-border-strong); border-radius: 16px;
    background: var(--a-tint); color: var(--a-deep);
}
#modal-auth .nb-auth__otp-icon .nb-auth__ico { width: 26px; height: 26px; }
#modal-auth .nb-auth__otp-title {
    margin: 0;
    font-family: var(--a-display); font-size: 24px; font-weight: 700; letter-spacing: -0.02em;
    color: var(--a-ink); font-variant-numeric: tabular-nums;
}
#modal-auth .nb-auth__otp-sub { max-width: 330px; margin: 8px 0 0; font-size: 14px; line-height: 1.5; color: var(--a-muted); }

#modal-auth .nb-auth__otp-boxes { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
#modal-auth .nb-auth__otp-boxes input {
    width: 100%; height: 56px; padding: 0;
    border: 1px solid var(--a-border); border-radius: 12px; outline: 0;
    background: #FFFFFF;
    font-family: var(--a-font); font-size: 22px; font-weight: 700; text-align: center; color: var(--a-ink);
    font-variant-numeric: tabular-nums;
    transition: border-color .15s ease, box-shadow .15s ease;
}
#modal-auth .nb-auth__otp-boxes input:focus { border-color: var(--a-primary); box-shadow: var(--a-ring); }
#modal-auth .nb-auth__field:has(#id-1712503887.is-invalid) .nb-auth__otp-boxes input { border-color: var(--a-critical); }
#modal-auth .nb-auth__otp-real { position: relative; height: 0; }
#modal-auth .nb-auth__otp-real input[name="primary-phone-number-verification-otp"] {
    position: absolute; left: 0; top: 0; width: 1px; height: 1px; padding: 0; border: 0; opacity: 0;
}
#modal-auth .nb-auth__otp-real + .invalid-feedback { margin-top: 8px; }
#modal-auth .nb-auth__otp-valid { display: flex; align-items: center; gap: 6px; margin: 10px 0 0; }
#modal-auth .nb-auth__otp-valid .nb-auth__ico { width: 15px; height: 15px; color: var(--a-primary); }

#modal-auth .nb-auth__resend {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    margin: 0 0 20px; padding: 10px 10px 10px 16px;
    border: 1px solid var(--a-border); border-radius: 12px;
    background: var(--a-canvas);
    font-size: 14px; color: var(--a-text);
}
#modal-auth .nb-auth__foot {
    margin: 20px 0 0; padding-top: 18px;
    border-top: 1px solid var(--a-canvas);
    font-size: 14px; color: var(--a-muted); text-align: center;
}

/* ---------- Small screens ---------- */
@media (max-width: 575px) {
    #modal-auth .modal-dialog { margin: 12px; }
    #modal-auth .modal-body { padding: 26px 18px 22px; }
    #modal-auth:has(#modal-auth-form-contact-verification:not([hidden])) .nb-auth__top { margin: -6px -18px 20px; padding: 0 18px 14px; }
    #modal-auth .nb-auth__head { gap: 12px; margin-bottom: 20px; }
    #modal-auth .nb-auth__logo { width: 48px; height: 48px; }
    #modal-auth .nb-auth__title { font-size: 21px; }
    #modal-auth .nb-auth__subtitle { font-size: 13px; }
    #modal-auth .nb-auth__grid { grid-template-columns: minmax(0, 1fr); }
    #modal-auth .nb-auth__roles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    #modal-auth .nb-auth__actions { grid-template-columns: 1fr; }
    #modal-auth .nb-auth__actions .nb-auth__btn--secondary { order: 2; }
    #modal-auth .nb-auth__otp-boxes { gap: 6px; }
    #modal-auth .nb-auth__otp-boxes input { height: 50px; font-size: 20px; }
    #modal-auth .nb-auth__resend { flex-direction: column; align-items: stretch; text-align: center; }
}