/**
 * USP UIP (auth.twots.top) - 組件與模組化介面樣式 (Components CSS)
 * 登入按鈕、狀態徽章、MFA 模態框與個人管理儀表板
 */

/* 核心卡片容器 */
.uip-card {
    background-color: var(--uip-bg-card);
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-lg);
    box-shadow: var(--uip-shadow);
    padding: 2.25rem 2rem;
    transition: all 0.25s ease;
}

.uip-card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.uip-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--uip-text-primary);
    margin-bottom: 0.5rem;
}

.uip-card-subtitle {
    font-size: 0.875rem;
    color: var(--uip-text-secondary);
    line-height: 1.4;
}

/* 安全政策提示徽章 */
.uip-security-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background-color: var(--uip-bg-secondary);
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-sm);
    padding: 0.6rem 0.75rem;
    font-size: 0.75rem;
    color: var(--uip-text-secondary);
    margin-bottom: 1.75rem;
    text-align: center;
}

.uip-security-banner svg {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--uip-success);
}

/* 第三方登入按鈕清單 (僅支援 Google, Discord, LINE) */
.uip-provider-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.uip-btn-oauth {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    width: 100%;
    padding: 0.85rem 1.25rem;
    border-radius: var(--uip-radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
    user-select: none;
}

.uip-btn-oauth:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.uip-btn-oauth:active {
    transform: translateY(0);
}

.uip-btn-oauth svg {
    width: 22px;
    height: 22px;
}

/* 各品牌專屬風格 */
.uip-btn-google {
    background-color: #FFFFFF;
    color: #3C4043;
    border-color: #DADCE0;
}
.uip-btn-google:hover {
    background-color: #F8F9FA;
    border-color: #BDC1C6;
}
[data-theme="dark"] .uip-btn-google {
    background-color: #303134;
    color: #E8EAED;
    border-color: #5F6368;
}
[data-theme="dark"] .uip-btn-google:hover {
    background-color: #3C4043;
}

.uip-btn-discord {
    background-color: var(--brand-discord);
    color: #FFFFFF;
}
.uip-btn-discord:hover {
    background-color: var(--brand-discord-hover);
}

.uip-btn-line {
    background-color: var(--brand-line);
    color: #FFFFFF;
}
.uip-btn-line:hover {
    background-color: var(--brand-line-hover);
}

/* 主題切換按鈕 */
.uip-theme-toggle {
    background: none;
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-sm);
    color: var(--uip-text-primary);
    cursor: pointer;
    padding: 0.45rem 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    transition: background-color 0.2s;
}

.uip-theme-toggle:hover {
    background-color: var(--uip-bg-secondary);
}

.uip-theme-toggle svg {
    width: 16px;
    height: 16px;
}

/* 訊息提示通知 (Alerts) */
.uip-alert {
    padding: 0.85rem 1rem;
    border-radius: var(--uip-radius-md);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.uip-alert-error {
    background-color: rgba(217, 48, 37, 0.1);
    border: 1px solid var(--uip-danger);
    color: var(--uip-danger);
}

.uip-alert-success {
    background-color: rgba(30, 142, 62, 0.1);
    border: 1px solid var(--uip-success);
    color: var(--uip-success);
}

/* 模態視窗 (Modal) */
.uip-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 1rem;
}

.uip-modal {
    background-color: var(--uip-bg-card);
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-lg);
    box-shadow: var(--uip-shadow-modal);
    width: 100%;
    max-width: 440px;
    padding: 2rem;
    position: relative;
    animation: modalSlideIn 0.2s ease-out;
}

@keyframes modalSlideIn {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.uip-modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--uip-text-primary);
    margin-bottom: 0.5rem;
}

.uip-modal-desc {
    font-size: 0.85rem;
    color: var(--uip-text-secondary);
    margin-bottom: 1.5rem;
}

.uip-form-group {
    margin-bottom: 1.25rem;
}

.uip-form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--uip-text-primary);
    margin-bottom: 0.4rem;
}

.uip-input-code {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1.5rem;
    letter-spacing: 6px;
    text-align: center;
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-md);
    background-color: var(--uip-bg-primary);
    color: var(--uip-text-primary);
    font-family: monospace;
}

.uip-input-code:focus {
    outline: none;
    border-color: var(--uip-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

.uip-btn-submit {
    width: 100%;
    padding: 0.85rem;
    background-color: var(--uip-primary);
    color: #FFFFFF;
    border: none;
    border-radius: var(--uip-radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.uip-btn-submit:hover {
    background-color: var(--uip-primary-hover);
}

/* 個人中心面板 (Dashboard) */
.uip-profile-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--uip-border-color);
}

.uip-avatar {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--uip-primary);
    background-color: var(--uip-bg-secondary);
}

.uip-profile-info h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--uip-text-primary);
}

.uip-profile-info p {
    font-size: 0.85rem;
    color: var(--uip-text-secondary);
}

.uip-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: rgba(26, 115, 232, 0.1);
    color: var(--uip-primary);
    margin-top: 0.35rem;
}

.uip-section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--uip-text-primary);
    margin: 1.5rem 0 0.75rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.uip-item-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.uip-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1rem;
    background-color: var(--uip-bg-secondary);
    border: 1px solid var(--uip-border-color);
    border-radius: var(--uip-radius-md);
}

.uip-item-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.uip-btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: var(--uip-radius-sm);
    border: 1px solid var(--uip-border-color);
    background-color: var(--uip-bg-primary);
    color: var(--uip-text-primary);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.uip-btn-sm:hover {
    background-color: var(--uip-danger);
    color: #FFFFFF;
    border-color: var(--uip-danger);
}

.uip-btn-primary-sm {
    background-color: var(--uip-primary);
    color: #FFFFFF;
    border-color: var(--uip-primary);
}

.uip-btn-primary-sm:hover {
    background-color: var(--uip-primary-hover);
    border-color: var(--uip-primary-hover);
    color: #FFFFFF;
}