/* ============================================================
   ★ 捐款專屬元件
   ============================================================ */

/* --- 捐款英雄區塊（Hero Banner） --- */
.donate-hero {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, #2A9D8F 100%);
    color: var(--color-white);
    padding: 60px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.donate-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(255,255,255,.06) 0%, transparent 60%);
    pointer-events: none;
}
.donate-hero .hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: .05em;
    margin-bottom: .4em;
    text-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.donate-hero .hero-subtitle {
    font-size: 1.8rem;
    opacity: .9;
    margin-bottom: 1.5em;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --- 捐款卡片 --- */
.donate-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2em;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.donate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.donate-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.donate-card .card-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1em;
    color: var(--color-primary);
    font-size: 2.4rem;
}
.donate-card .card-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: .4em;
}
.donate-card .card-desc {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 1.2em;
}

/* --- 金額選擇按鈕 --- */
.amount-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 1em;
}
.amount-btn {
    flex: 1 1 calc(33.333% - 10px);
    min-width: 80px;
    padding: 10px 8px;
    background: var(--color-bg-light);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-size: 1.6rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}
.amount-btn:hover,
.amount-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}
.amount-btn.featured {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}
.amount-btn.featured:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
}

/* --- 捐款進度條 --- */
.donate-progress {
    margin-bottom: 1.5em;
}
.donate-progress .progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 1.4rem;
    color: var(--color-text-muted);
    margin-bottom: .4em;
}
.donate-progress .progress-label .raised {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.6rem;
}
.donate-progress .progress-label .goal {
    color: var(--color-text-muted);
}
.progress-bar-wrap {
    background: var(--color-border);
    border-radius: 999px;
    height: 12px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: width .6s ease;
    position: relative;
}
.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.3) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}
@keyframes shimmer {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}
.progress-stats {
    display: flex;
    gap: 2em;
    margin-top: .8em;
}
.progress-stats .stat-item {
    text-align: center;
}
.progress-stats .stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    display: block;
}
.progress-stats .stat-label {
    font-size: 1.3rem;
    color: var(--color-text-muted);
}

/* --- 捐款項目標籤 --- */
.donate-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 1.2rem;
    font-weight: 600;
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-right: 4px;
    margin-bottom: 4px;
}
.donate-tag.urgent {
    background: #FEF3C7;
    color: #D97706;
}
.donate-tag.completed {
    background: #D1FAE5;
    color: #065F46;
}

/* --- 捐款表單 --- */
.donate-form {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2em 2.5em;
    box-shadow: var(--shadow-md);
}
.donate-form .form-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.2em;
    padding-bottom: .6em;
    border-bottom: 2px solid var(--color-border);
}
.donate-form .form-group label {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: .3em;
}
.donate-form .form-control {
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 1.6rem;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.donate-form .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,110,142,.15);
    outline: none;
}
.donate-form .required-mark {
    color: #DC2626;
    margin-left: 2px;
}

/* --- 芳名錄卡片 --- */
.donor-card {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1em 1.2em;
    display: flex;
    align-items: center;
    gap: 1em;
    transition: var(--transition);
}
.donor-card:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}
.donor-card .donor-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    flex-shrink: 0;
}
.donor-card .donor-name {
    font-weight: 600;
    color: var(--color-text);
    font-size: 1.5rem;
}
.donor-card .donor-amount {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.6rem;
    margin-left: auto;
}
.donor-card .donor-date {
    font-size: 1.2rem;
    color: var(--color-text-muted);
}

/* --- 捐款步驟流程 --- */
.donate-steps {
    display: flex;
    gap: 0;
    counter-reset: step-counter;
    position: relative;
}
.donate-steps::before {
    content: '';
    position: absolute;
    top: 28px;
    left: calc(10% + 28px);
    right: calc(10% + 28px);
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}
.step-item {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 10px;
}
.step-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-white);
    border: 3px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-muted);
    transition: var(--transition);
}
.step-item.active .step-circle,
.step-item.done .step-circle {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(26,110,142,.3);
}
.step-label {
    font-size: 1.4rem;
    color: var(--color-text-muted);
    font-weight: 500;
}
.step-item.active .step-label,
.step-item.done .step-label {
    color: var(--color-primary);
    font-weight: 700;
}

/* --- 統計數字展示 --- */
.stat-block {
    text-align: center;
    padding: 2em 1em;
}
.stat-block .stat-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-primary);
    display: block;
    line-height: 1.1;
}
.stat-block .stat-unit {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent);
}
.stat-block .stat-desc {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    margin-top: .4em;
}

/* --- 公告/訊息條 --- */
.notice-bar {
    background: var(--color-primary-light);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 12px 16px;
    margin-bottom: 1em;
    font-size: 1.5rem;
    color: var(--color-primary-dark);
}
.notice-bar.urgent {
    background: #FEF3C7;
    border-left-color: #D97706;
    color: #92400E;
}
.notice-bar.success {
    background: #D1FAE5;
    border-left-color: #059669;
    color: #065F46;
}

/* --- 捐款感謝區塊 --- */
.thank-you-section {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #EBF8FF 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 3em 2em;
    text-align: center;
}
.thank-you-section .thank-icon {
    font-size: 5rem;
    margin-bottom: .5em;
    display: block;
}
.thank-you-section .thank-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: .5em;
}
.thank-you-section .thank-desc {
    font-size: 1.6rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin: 0 auto 1.5em;
}

/* --- 捐款項目選擇卡片 --- */
.fund-select-card {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.2em 1.5em;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}
.fund-select-card:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}
.fund-select-card.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}
.fund-select-card.selected::after {
    content: '✓';
    position: absolute;
    top: 12px;
    right: 12px;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}
.fund-select-card .fund-name {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: .3em;
}
.fund-select-card .fund-desc {
    font-size: 1.4rem;
    color: var(--color-text-muted);
}

/* ============================================================
   動畫效果
   ============================================================ */
@keyframes fadeInUp {
    0%   { opacity: 0; transform: translate3d(0, 40px, 0); }
    100% { opacity: 1; transform: none; }
}
.fadeInUp { animation: fadeInUp .5s ease both; }

/* ============================================================
   響應式：螢幕 >= 768px
   ============================================================ */
@media (min-width: 768px) {
    /* 捐款卡片多欄排列 */
    .donate-cards-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .donate-steps { padding: 0 5%; }
    .donate-hero .hero-title { font-size: 4rem; }
}

/* ============================================================
   響應式：螢幕 <= 768px
   ============================================================ */
@media (max-width: 768px) {
    /* 捐款元件響應式 */
    .donate-hero { padding: 40px 15px; }
    .donate-hero .hero-title { font-size: 2.4rem; }
    .donate-hero .hero-subtitle { font-size: 1.6rem; }
    .donate-form { padding: 1.5em; }
    .donate-steps { flex-direction: column; gap: 16px; }
    .donate-steps::before { display: none; }
    .step-item { display: flex; align-items: center; text-align: left; gap: 16px; }
    .step-circle { margin: 0; flex-shrink: 0; }
    .amount-btn { flex: 1 1 calc(50% - 10px); }
    .donate-cards-grid { grid-template-columns: 1fr; }
    .progress-stats { gap: 1em; }
    .stat-block .stat-number { font-size: 3rem; }
}

/* ============================================================
   響應式：螢幕 >= 481px
   ============================================================ */
@media (min-width: 481px) {
    /* 捐款卡片三欄排列 */
    .donate-cards-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

/* ============================================================
   響應式：螢幕 <= 480px
   ============================================================ */
@media (max-width: 480px) {
    /* 捐款元件響應式 */
    .amount-btn { flex: 1 1 100%; }
    .donate-hero .hero-title { font-size: 2rem; }
    .stat-block .stat-number { font-size: 2.4rem; }
}