/* ========= 全域設定 & 變數 ========= */
:root {
    --clr-primary: #4f46e5;         /* 主色 (indigo-600) */
    --clr-primary-light: #eef0ff;   /* 主色淡化背景 */
    --clr-success: #4caf50;         /* 成功綠 */
    --clr-bg: #f7f9fc;              /* 站點背景 */
    --clr-text: #333;
    --clr-muted: #6b7280;
    --radius-lg: 1rem;
    --shadow-card: 0 8px 32px rgba(16, 24, 40, .08);
    --fs-h1: 1.5rem;   /* 24px */
    --fs-h3: 1.125rem; /* 18px */
    --fs-body: .9375rem;/* 15px */
}

html { box-sizing: border-box; }
*, *::before, *::after { box-sizing: inherit; }
body {
    margin: 0;
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
}

/* ========= Container & Card ========= */
.success-container {
    min-height: 100vh;               /* 垂直置中 */
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-card {
    width: 100%;
    max-width: 600px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 2rem 1.75rem;
    text-align: center;
}

/* ========= Icon & Title ========= */
.success-icon svg {
    display: block;
    margin: 0 auto 1rem;
}

.success-title {
    margin: 0 0 1rem;
    font-size: var(--fs-h1);
    font-weight: 700;
    color: var(--clr-success);
}

/* ========= Message 區塊 ========= */
.success-message {
    margin-bottom: 2rem;
}

.main-message {
    margin: 0 0 .25rem;
    font-weight: 600;
    font-size: var(--fs-body);
}

.detail-message,
.email-display {
    margin: 0;
    font-size: var(--fs-body);
    color: var(--clr-muted);
}

.email-display {
    word-break: break-all;
    color: var(--clr-primary);
}

/* ========= Info-box（3 條目） ========= */
.info-box {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;        /* 對應 space-y-4 */
}

.info-box .flex div svg { 
  width: 1.5rem;          /* 24px */
  height: 1.5rem;
  display: block;         /* 去掉 inline baseline 空白 */
}

.flex { display: flex; }
.items-center { align-items: center; }
.space-x-4 { gap: 1rem; }

.p-3 { padding: .75rem; }
.rounded-xl { border-radius: .75rem; }
.bg-indigo-50 { background: var(--clr-primary-light); }
.text-indigo-600 { color: var(--clr-primary); }

.w-6 { width: 1.5rem; }  /* 24px */
.h-6 { height: 1.5rem; }

.font-semibold { font-weight: 600; }
.text-lg { font-size: var(--fs-h3); }
.text-sm { font-size: .8125rem; }    /* 13px */
.text-gray-600 { color: var(--clr-muted); }

/* ========= Notice 區塊 ========= */
.notice-box {
    text-align: left;
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    background: #f1f5f9;
    border-left: 4px solid var(--clr-primary);
    border-radius: var(--radius-lg);
}

.notice-box ul li
{
    margin-top:10px;
    font-size: var(--fs-body);
    color: var(--clr-muted);
}

.mt-6 { margin-top: 1.5rem; }
.p-4 { padding: 1rem; }
.rounded-lg { border-radius: .75rem; }
.bg-gray-50 { background: #f9fafb; }
.mb-2 { margin-bottom: .5rem; }
.list-disc { list-style-type: disc; padding-left: 20px;}
.ml-5 { margin-left: 1.25rem; }
.space-y-1 { line-height: 1.4; }

/* ========= Buttons ========= */
.action-buttons {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.btn {
    display: inline-block;
    padding: .75rem 1rem;
    font-size: var(--fs-body);
    font-weight: 600;
    text-decoration: none;
    border-radius: .5rem;
    transition: background .2s ease, color .2s ease;
}

.btn-primary {
    background: var(--clr-primary);
    color: #fff;
}

.btn-primary:hover { background: #4338ca; }

.btn-secondary {
    background: #e5e7eb;
    color: var(--clr-text);
}

.btn-secondary:hover { background: #d1d5db; }

/* ========= 響應式桌面優化 (≥768px) ========= */
@media (min-width: 768px) {
    .info-box {
        flex-direction: row;
        justify-content: space-between;
        gap: 1.5rem;
    }
    .info-box > .flex {
        flex: 1 1 0;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .action-buttons {
        flex-direction: row;
        justify-content: center;
    }
}