/* login.css */

/* ===== 色彩變數 (橘色主題) ===== */
:root {
    --primary-900: hsla(14, 100%, 27%, 1); /* 最深 */
    --primary-700: hsla(14, 100%, 47%, 1); /* 深色 hover */
    --primary-500: hsla(14, 100%, 57%, 0.90); /* 主色 */
    --primary-300: hsla(14, 100%, 77%, 0.7); /* 淺色邊框 */
    --primary-100: hsla(14, 100%, 95%, 0.4); /* 最淺背景 */

    --shadow-rgb: 255, 87, 34; /* 約等於 #FF5722 */

    --bg: #fffaf8; /* 背景帶一點暖色 */
    --white: #fff;
    --text-main: #2f2f2f;
    --text-muted: #555;
    --text-sub: #7A6A65;
}

/* ===== 全域設定 ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
}

body {
    font-family: "Noto Sans TC","Microsoft JhengHei",sans-serif;
    background: var(--bg);
    color: var(--text-main);
}

/* ===== 容器與卡片 ===== */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 4vw, 24px);
}

/* ===== 容器與卡片 ===== */
.card {
    width: 100%;
    max-width: clamp(320px, 92vw, 420px);
    background: var(--white);
    border: 1px solid var(--primary-300);
    border-radius: 14px;
    /* 調整內距：上下更大、左右適中 */
    padding: clamp(28px, 6vw, 40px) clamp(22px, 5vw, 32px);
    box-shadow: 0 8px 28px rgba(var(--shadow-rgb), .22);
}

/* ===== 標題 ===== */
.title {
    font-weight: 700;
    margin: 0 0 12px;
    text-align: center;
    color: var(--primary-500);
    font-size: clamp(22px, 3vw, 28px); /* 更大 */
    line-height: 1.4;
}

.subtitle {
    text-align: center;
    color: var(--text-sub);
    margin: 0 0 30px;
    font-size: clamp(14px, 2.5vw, 16px); /* 提升副標題大小 */
    line-height: 1.6;
}

/* ===== 表單欄位 ===== */
.field {
    margin-bottom: 16px;
}

.label {
    font-size: clamp(12px, 2.4vw, 13px);
    margin-bottom: 6px;
    color: var(--text-muted);
}

.input {
    width: 100%;
    border: 1px solid var(--primary-300);
    border-radius: 10px;
    padding: 12px;
    font-size: clamp(14px, 2.8vw, 15px);
    outline: none;
    transition: .2s;
    background: var(--white);
}

    .input:focus {
        border-color: var(--primary-500);
        box-shadow: 0 0 0 2px var(--primary-300);
    }

.input-wrap {
    position: relative;
}

.toggle-eye {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: clamp(11px, 2.4vw, 12px);
    color: var(--primary-700);
    user-select: none;
}

.hint {
    font-size: clamp(11px, 2.4vw, 12px);
    color: var(--primary-700);
    margin-top: 6px;
}

/* ===== Flex Row (驗證碼) ===== */
.row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.captcha-input {
    flex: 1 1 200px;
}

.captcha-img {
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--primary-300);
    cursor: pointer;
}

/* ===== 按鈕 ===== */
.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: var(--primary-500);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: .2s;
    font-size: clamp(14px, 2.8vw, 16px);
}

    .btn:hover {
        background: var(--primary-700);
    }

    .btn[disabled] {
        opacity: .6;
        cursor: not-allowed;
    }

/* ===== 連結 ===== */
.link {
    color: var(--primary-500);
    text-decoration: none;
    font-size: clamp(12px, 2.4vw, 13px);
}

    .link:hover {
        text-decoration: underline;
    }

/* ===== Alert ===== */
.alert {
    position: relative;
    padding: 12px 14px;
    border-radius: 12px;
    background: var(--primary-100);
    color: var(--primary-900);
    font-size: clamp(12px, 2.6vw, 13px);
    margin-bottom: 14px;
    display: none;
    border: 1px solid var(--primary-300);
    line-height: 1.5;
}

    .alert.show {
        display: block;
    }

/* ===== RWD 微調 ===== */
@media (max-width: 480px) {
    .card {
        border-radius: 12px;
    }

    .row {
        gap: 8px;
    }

    .captcha-img {
        flex-basis: 100%;
        height: 44px;
    }
}

@media (max-width: 360px) {
    .card {
        padding: 18px 16px;
    }

    .toggle-eye {
        right: 10px;
    }
}