/* =========================
   1. 變數與主體設定
   ========================= */
:root {
    --primary-color: #2F3944;
    --secondary-color: #84754E;
    --accent-color: #996A4E;
    --light-accent: #C69B80;
    --text-light: #FCF9EA;
    --text-dark: #2F3944;
    --transition-speed: 0.3s;
}

body {
    background: var(--primary-color);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    margin: 0;
    padding: 0;
}

/* 隱藏 navbar 和 footer */
nav, .navbar, footer {
    display: none !important;
}

/* =========================
   2. 卡片與 Logo
   ========================= */
.wrapper {
    min-height: 100vh;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-direction: column;
    padding: 0 !important;
}

.card {
    background: rgba(252, 249, 234, 0.85);
    backdrop-filter: blur(16px);
    border-radius: 18px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    border: 1px solid rgba(255,255,255,0.18);
    transition: box-shadow var(--transition-speed);
    overflow: visible !important;
}

.card-body {
    padding: 2.5rem 2rem 2rem 2rem;
    overflow: visible !important;
}

.logo-container img {
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 4px 24px rgba(0,0,0,0.18));
}

/* =========================
   3. 表單欄位
   ========================= */
.form-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

.form-control, .form-select, .ts-control {
    background: rgba(255,255,255,0.95) !important;
    border: 2px solid var(--primary-color) !important;
    color: var(--primary-color) !important;
    border-radius: 8px !important;
    padding: 0.9rem 1.2rem 0.9rem 1rem !important;
    font-size: 1.05rem;
    font-weight: 600;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    box-shadow: none !important;
}

.form-control:focus, .form-select:focus, .ts-control:focus, .ts-control:focus-within {
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 0 4px rgba(153, 106, 78, 0.18) !important;
    outline: none !important;
}

.form-select {
    appearance: none !important;
    background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' fill='%232F3944' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%232F3944' stroke-width='2' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.2em;
}

.form-select option, .ts-dropdown .option {
    color: var(--primary-color) !important;
    background: #fff !important;
    font-weight: 600;
    font-size: 1.07rem;
}

.form-select optgroup, .ts-dropdown .optgroup-header {
    color: var(--secondary-color) !important;
    font-weight: 700 !important;
    font-size: 1.05rem !important;
    background: #fff !important;
    padding-top: 0.5em;
    padding-bottom: 0.2em;
}

/* =========================
   4. Tom Select 下拉選單
   ========================= */
.ts-dropdown,
.ts-wrapper .ts-dropdown,
body > .ts-dropdown {
    z-index: 99999 !important;
    position: absolute !important;
    background: #fff !important;
    border-radius: 8px !important;
    box-shadow: 0 8px 32px rgba(47,57,68,0.13);
    border: 1.5px solid var(--light-accent);
    font-size: 1.05rem !important;
    font-weight: 600 !important;
}

.ts-dropdown .option.selected,
.ts-dropdown .option.active {
    background: var(--light-accent) !important;
    color: var(--primary-color) !important;
}

/* =========================
   5. 按鈕
   ========================= */
.btn-primary,
button.btn.btn-primary,
input[type="submit"].btn-primary {
    background: var(--accent-color) !important;
    border: none !important;
    color: #fff !important;
    font-weight: 700;
    border-radius: 8px;
    font-size: 1.1rem;
    padding: 1rem 2rem;
    transition: background var(--transition-speed);
}

.btn-primary:hover,
button.btn.btn-primary:hover,
input[type="submit"].btn-primary:hover {
    background: var(--light-accent) !important;
    color: #fff !important;
}

.btn {
    color: #fff !important;
    font-weight: 600;
    border-radius: 8px !important;
    padding: 0.8rem 1.5rem !important;
    margin-bottom: 0.5rem;
    transition: background var(--transition-speed);
}

/* =========================
   6. 連結
   ========================= */
a, .link {
    color: var(--accent-color);
    text-decoration: underline dotted;
    font-weight: 500;
    transition: color var(--transition-speed);
    text-decoration-thickness: 1.5px;
    border-bottom: 1.5px dotted var(--accent-color);
}
a:hover, .link:hover {
    color: var(--secondary-color);
    text-decoration: underline solid;
    border-bottom: 1.5px solid var(--secondary-color);
}

/* Safari/iOS fallback: 只用顏色，不加 border-bottom */
@media not all and (min-resolution:.001dpcm) {
    @supports (-webkit-touch-callout: none) {
        a, .link {
            text-decoration: underline;
            border-bottom: none !important;
        }
    }
}

.input-group {
    z-index: 1;
}

/* =========================
   7. 錯誤訊息
   ========================= */
.text-danger {
    color: #dc3545 !important;
    font-weight: 600;
    margin-top: 0.5rem;
}

/* =========================
   8. 密碼欄位 input-group
   ========================= */
.input-group .form-control {
    border-top-right-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}
.input-group .toggle-password {
    border: none !important;
    background: transparent !important;
    color: var(--primary-color) !important;
    font-size: 1.3em;
    padding: 0 0.7em;
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
    border-top-right-radius: 8px !important;
    border-bottom-right-radius: 8px !important;
    transition: color var(--transition-speed);
    box-shadow: none !important;
    outline: none !important;
    display: flex;
    align-items: center;
}
.input-group .toggle-password:hover,
.input-group .toggle-password:focus {
    color: var(--accent-color) !important;
    background: rgba(153, 106, 78, 0.08) !important;
}

/* =========================
   9. 響應式設計
   ========================= */
@media (max-width: 900px) {
    .wrapper {
        padding: 0 1.2rem !important;
    }
    .card {
        border-radius: 14px;
        margin: 2rem 0;
    }
    .logo-container img {
        width: 180px !important;
    }
    .card-body {
        padding: 1.5rem 1rem !important;
    }
}
@media (max-width: 600px) {
    .wrapper {
        padding: 0 0.5rem !important;
    }
    .card {
        border-radius: 8px !important;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
        margin: 1rem 0 !important;
    }
    .card-body {
        padding: 0.7rem 0.3rem !important;
    }
    .logo-container img {
        width: 120px !important;
        margin-bottom: 0.7rem !important;
    }
    .form-label {
        font-size: 0.98rem !important;
        margin-bottom: 0.3rem !important;
    }
    .form-group, .form-row, .mb-3, .mb-4 {
        margin-bottom: 0.6rem !important;
    }
    .form-control, .form-select, .ts-control {
        font-size: 0.97rem !important;
        padding: 0.6rem 0.7rem 0.6rem 0.7rem !important;
        min-height: 40px !important;
    }
    .btn, .btn-primary {
        font-size: 0.98rem !important;
        padding: 0.65rem 1rem !important;
    }
    .text-danger {
        font-size: 0.95rem !important;
        margin-top: 0.3rem !important;
    }
    .input-group {
        flex-direction: column !important;
    }
    /* 手機版 password 欄位上下排列 */
    .password-row {
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
    }
    .password-row .form-group {
        flex: 1;
    }
}

/* =========================
   10. 密碼欄位橫排（桌面）
   ========================= */
.password-row {
    display: flex;
    flex-direction: row;
    gap: 1.2rem;
}
.password-row .form-group {
    flex: 1 1 0;
    min-width: 0;
}

/* 手機版：直排，間距更小，欄位全寬 */
@media (max-width: 600px) {
    .password-row {
        flex-direction: column !important;
        gap: 0.7rem !important;
    }
    .password-row .form-group {
        width: 100%;
        min-width: 0;
    }
    .input-group {
        flex-direction: row !important; /* 保持密碼眼睛按鈕在右側 */
    }
}

/* 修正 Tom Select 輸入框文字顏色 */
.ts-control input {
    color: var(--primary-color) !important;
    background: transparent !important;
    font-weight: 600;
}

/* 修正 checkbox label 顏色 */
.form-check-label {
    color: var(--primary-color) !important;
    font-weight: 600;
}

/* 修正 Already registered? 文字顏色 */
.text-center.mt-2 {
    color: var(--primary-color) !important;
    font-weight: 600;
}
/* Log In Here! 連結用 accent color */
.text-center.mt-2 a {
    color: var(--accent-color) !important;
    font-weight: 600;
    border-bottom: 1.5px dotted var(--accent-color);
}
.text-center.mt-2 a:hover {
    color: var(--secondary-color) !important;
    border-bottom: 1.5px solid var(--secondary-color);
}