/* ============================================================
   BeefSoup Web · 登入/註冊頁專用樣式
   - 全屏漸層背景(墨綠對角 + 香檳金光暈)
   - 置中卡片:桌機雙欄(品牌欄 + 表單欄),手機合併為單欄
   - 全部色彩走 var(--beef-*),不寫死 hex
   ============================================================ */

.auth-body {
    background-color: var(--beef-primary);
}

/* ------------------------------------------------------------
   登入卡片內語言切換(置於右側表單欄頂部、靠右對齊)
   ------------------------------------------------------------ */
.auth-form__lang {
    background: transparent;
    min-height: auto;
    padding: 0;
    justify-content: flex-end;
    margin-bottom: -8px; /* 收一點視覺空間,讓標題仍是首要焦點 */
}

.auth-form__lang .nav-link {
    color: var(--beef-text-muted, #6b7280);
    padding: 4px 8px;
    border-radius: 6px;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.auth-form__lang .nav-link:hover,
.auth-form__lang .nav-link:focus-visible {
    color: var(--beef-primary);
    background-color: var(--beef-bg-chip, rgba(0, 0, 0, 0.04));
}

.auth-form__lang .nav-link i {
    font-size: 1rem;
}

/* ------------------------------------------------------------
   外層全屏容器:漸層 + 柔光
   ------------------------------------------------------------ */
.auth-shell {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 15%, rgba(200, 168, 90, 0.22) 0%, transparent 55%),
        radial-gradient(circle at 15% 85%, rgba(124, 170, 142, 0.18) 0%, transparent 60%),
        linear-gradient(135deg, var(--beef-primary-700) 0%, var(--beef-primary) 55%, var(--beef-primary-800) 100%);
}

/* 在漸層上疊一層細微紋理(用 SVG noise) */
.auth-shell::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.045 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
    opacity: 0.6;
    pointer-events: none;
}

/* ------------------------------------------------------------
   登入卡片
   ------------------------------------------------------------ */
.auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 960px;
    background-color: var(--beef-bg-card);
    border-radius: var(--beef-radius-lg);
    box-shadow: var(--beef-elev-5), 0 0 0 1px var(--beef-border);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .auth-card {
        grid-template-columns: 1.05fr 1fr;
    }
}

/* ------------------------------------------------------------
   品牌欄:手機=上方緊湊橫列 / 桌機=左側完整欄
   ------------------------------------------------------------ */
.auth-brand {
    position: relative;
    color: var(--beef-text-on-dark);
    background:
        radial-gradient(circle at 30% 20%, rgba(200, 168, 90, 0.28) 0%, transparent 55%),
        linear-gradient(160deg, var(--beef-primary) 0%, var(--beef-primary-800) 100%);
    overflow: hidden;

    /* 手機預設:緊湊橫列(logo + 標題並排,副標收起) */
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    padding: 20px 24px;
}

@media (min-width: 768px) {
    .auth-brand {
        /* 桌機:左側完整欄,垂直堆疊 */
        flex-direction: column;
        align-items: stretch;
        justify-content: space-between;
        gap: 0;
        padding: 48px 40px;
        min-height: 560px;
    }
}

/* 手機端內部容器:讓「第一個 div(mark + 文字)」的子元素直接攤平與 .auth-brand 並排
   只針對第一個 div,避免影響到 .auth-brand__meta 等其他直接子元素 */
.auth-brand > div:first-child {
    display: contents;
}

@media (min-width: 768px) {
    .auth-brand > div:first-child {
        display: block;
    }
}

.auth-brand__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--beef-radius-md);
    background-color: rgba(255, 255, 255, 0.10);
    color: var(--beef-secondary);
    font-size: 24px;
    margin-bottom: 0;
    backdrop-filter: blur(6px);
}

.auth-brand__mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@media (min-width: 768px) {
    .auth-brand__mark {
        width: 64px;
        height: 64px;
        font-size: 36px;
        margin-bottom: 24px;
    }
}

.auth-brand__title {
    color: var(--beef-text-on-dark);
    margin: 0;
    font-size: var(--beef-fs-title);
    line-height: 1.2;
}

@media (min-width: 768px) {
    .auth-brand__title {
        font-size: var(--beef-fs-h2);
        margin: 0 0 12px;
    }
}

/* 手機端隱藏副標 / meta / 大型裝飾,節省空間 */
.auth-brand__subtitle,
.auth-brand__meta {
    display: none;
    color: var(--beef-text-on-dark);
    opacity: 0.78;
    line-height: 1.6;
    max-width: 30ch;
}

.auth-brand__meta {
    opacity: 0.6;
}

@media (min-width: 768px) {
    .auth-brand__subtitle,
    .auth-brand__meta {
        display: block;
    }
    .auth-brand__meta {
        margin-top: auto;
        padding-top: 32px;
    }
}

.auth-brand__deco {
    display: none; /* 手機端隱藏大型裝飾(避免溢位) */
    position: absolute;
    right: -40px;
    bottom: -40px;
    font-size: 220px;
    line-height: 1;
    color: var(--beef-secondary);
    opacity: 0.10;
    pointer-events: none;
    user-select: none;
}

@media (min-width: 768px) {
    .auth-brand__deco {
        display: block;
    }
}

/* ------------------------------------------------------------
   右側表單欄
   ------------------------------------------------------------ */
.auth-form {
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (min-width: 768px) {
    .auth-form {
        padding: 56px 48px;
    }
}

.auth-form__head {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 4px;
}

.auth-form__title {
    margin: 0;
}

.auth-form__hint {
    color: var(--beef-text-mid);
    margin: 0;
}

/* 表單欄位 */
.auth-form .form-label {
    color: var(--beef-text-mid);
    font-weight: 600;
    margin-bottom: 6px;
}

.auth-form .form-control {
    height: 44px;
    padding: 10px 14px;
    border-radius: var(--beef-radius-md);
    border: 1px solid var(--beef-border-strong);
    background-color: var(--beef-bg-card);
    color: var(--beef-text-high);
}

.auth-form .form-control:focus {
    border-color: var(--beef-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--beef-primary-rgb), 0.18);
}

/* 密碼/PIN 欄位:右側內嵌「顯示切換」按鈕 */
.auth-secret {
    position: relative;
}

.auth-secret .form-control {
    padding-right: 44px;
}

.auth-secret__toggle {
    position: absolute;
    top: 50%;
    right: 6px;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    background: transparent;
    color: var(--beef-text-low);
    border-radius: var(--beef-radius-sm);
    cursor: pointer;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.auth-secret__toggle:hover {
    color: var(--beef-primary);
    background-color: var(--beef-bg-chip);
}

.auth-secret__toggle:focus-visible {
    outline: 2px solid var(--beef-primary);
    outline-offset: 2px;
}

/* 「記住我 + 忘記密碼」橫排 */
.auth-form__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.auth-form .form-check-input:checked {
    background-color: var(--beef-primary);
    border-color: var(--beef-primary);
}

.auth-form .form-check-label {
    color: var(--beef-text-mid);
    cursor: pointer;
}

.auth-form__forgot {
    color: var(--beef-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-form__forgot:hover {
    color: var(--beef-primary-hover);
    text-decoration: underline;
}

/* 登入按鈕(全寬) */
.auth-form .btn-beef-primary {
    height: 48px;
    width: 100%;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* 底部小字 */
.auth-form__foot {
    margin-top: 8px;
    color: var(--beef-text-low);
    text-align: center;
}

/* 驗證錯誤訊息 */
.auth-form .field-validation-error,
.auth-form .text-danger {
    color: var(--beef-danger, #B91C1C);
    font-size: var(--beef-fs-caption);
    margin-top: 4px;
    display: inline-block;
}

/* 無錯狀態:span 不佔位,避免 inline-block 行高造成版面位移 */
.auth-form .field-validation-valid {
    display: none;
}

.auth-form .input-validation-error {
    border-color: var(--beef-danger, #B91C1C);
}