/* ============================================================
   SklandSigner - 设计系统
   基于 DESIGN.md (Lovable 风格)
   ============================================================ */

/* ---------- 基础变量 ---------- */
:root {
    --cream: #f7f4ed;
    --cream-surface: #f7f4ed;
    --charcoal: #1c1c1c;
    --off-white: #fcfbf8;
    --muted: #5f5f5d;
    --border: #eceae4;
    --border-interactive: rgba(28, 28, 28, 0.4);
    --charcoal-82: rgba(28, 28, 28, 0.82);
    --charcoal-83: rgba(28, 28, 28, 0.83);
    --charcoal-40: rgba(28, 28, 28, 0.4);
    --charcoal-04: rgba(28, 28, 28, 0.04);
    --charcoal-03: rgba(28, 28, 28, 0.03);
    --focus-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
    --inset-shadow: rgba(255, 255, 255, 0.2) 0px 0.5px 0px 0px inset,
                    rgba(0, 0, 0, 0.2) 0px 0px 0px 0.5px inset,
                    rgba(0, 0, 0, 0.05) 0px 1px 2px 0px;
    --ring-blue: rgba(59, 130, 246, 0.5);
    --success: #2d7d46;
    --success-bg: #e8f5ec;
    --error: #b33a3a;
    --error-bg: #fde8e8;
    --warning: #a16c2f;
    --warning-bg: #fdf3e3;
    --radius-sm: 4px;
    --radius: 6px;
    --radius-card: 12px;
    --radius-container: 16px;
    --radius-pill: 9999px;
}

/* ---------- 重置 & 基础 ---------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Camera Plain Variable', ui-sans-serif, system-ui, -apple-system,
                 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    font-weight: 400;
    line-height: 1.50;
    color: var(--charcoal);
    background-color: var(--cream);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: 100%;
}

a {
    color: var(--charcoal);
    text-decoration: underline;
}
a:hover {
    opacity: 0.8;
}

ul {
    padding-left: 1.5em;
}

/* ---------- 导航 ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--cream);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 32px;
}
.nav-logo {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.5px;
    text-decoration: none;
    white-space: nowrap;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}
.nav-link {
    font-size: 14px;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    color: var(--charcoal-82);
    transition: background-color 0.15s;
}
.nav-link:hover {
    background-color: var(--charcoal-04);
    opacity: 1;
}
.nav-link.active {
    color: var(--charcoal);
    font-weight: 600;
}
.nav-link-logout {
    color: var(--muted);
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-interactive);
    border-radius: var(--radius);
    padding: 8px;
    cursor: pointer;
    margin-left: auto;
    flex-direction: column;
    gap: 4px;
}
.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--charcoal);
    border-radius: 1px;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--cream);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 12px 24px;
        gap: 4px;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-link {
        padding: 10px 0;
    }
}

/* ---------- 主体 ---------- */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px 80px;
    flex: 1;
    width: 100%;
}

.container {
    max-width: 960px;
    margin: 0 auto;
}

/* ---------- 页面标题 ---------- */
.page-header {
    margin-bottom: 40px;
}
.page-title {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.10;
    letter-spacing: -0.9px;
    color: var(--charcoal);
}
.page-desc {
    font-size: 16px;
    color: var(--muted);
    margin-top: 8px;
}

/* ---------- 统计卡片 ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}
.stat-card {
    background: var(--cream-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 24px;
    text-align: center;
}
.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.00;
    letter-spacing: -1.2px;
    color: var(--charcoal);
}
.stat-label {
    display: block;
    font-size: 14px;
    color: var(--muted);
    margin-top: 8px;
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stat-number {
        font-size: 36px;
    }
}

/* ---------- 区块 ---------- */
.section {
    margin-bottom: 48px;
}
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.section-title {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

/* ---------- 卡片 ---------- */
.card {
    background: var(--cream-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 24px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.50;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: opacity 0.15s, box-shadow 0.15s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:active {
    opacity: 0.8;
}
.btn:focus-visible {
    box-shadow: var(--focus-shadow);
    outline: none;
}

.btn-primary {
    background-color: var(--charcoal);
    color: var(--off-white);
    box-shadow: var(--inset-shadow);
}
.btn-ghost {
    background: transparent;
    color: var(--charcoal);
    border: 1px solid var(--border-interactive);
}
.btn-cream {
    background: var(--cream);
    color: var(--charcoal);
}
.btn-sm {
    font-size: 14px;
    padding: 6px 12px;
}
.btn-block {
    width: 100%;
}
.btn-danger {
    background: var(--error);
    color: var(--off-white);
    box-shadow: var(--inset-shadow);
}
.btn-success {
    background: var(--success);
    color: var(--off-white);
    box-shadow: var(--inset-shadow);
}
.btn-pill {
    border-radius: var(--radius-pill);
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.btn-lg {
    font-size: 16px;
    padding: 12px 24px;
    font-weight: 500;
}
.btn-icon {
    margin-right: 8px;
    font-size: 18px;
}
.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ---------- 表单 ---------- */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--charcoal);
}
.label-hint {
    font-weight: 400;
    color: var(--muted);
    font-size: 13px;
}
.form-group input,
.form-group textarea,
.select-input {
    width: 100%;
    font-family: inherit;
    font-size: 16px;
    line-height: 1.50;
    padding: 10px 12px;
    background: var(--cream-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--charcoal);
    transition: border-color 0.15s, box-shadow 0.15s;
}
.form-group input:focus,
.form-group textarea:focus,
.select-input:focus {
    outline: none;
    border-color: var(--ring-blue);
    box-shadow: 0 0 0 2px var(--ring-blue);
}
.form-group input::placeholder {
    color: var(--muted);
}
.form-hint {
    display: block;
    font-size: 13px;
    color: var(--muted);
    margin-top: 4px;
}
.form-hint a {
    color: var(--charcoal);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 16px;
}
@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}
.form-group-sm {
    min-width: 0;
}
.form-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}
.form-status {
    font-size: 14px;
}
.form-status.success {
    color: var(--success);
}
.form-status.error {
    color: var(--error);
}
.input-with-btn {
    display: flex;
    gap: 8px;
}
.input-with-btn input {
    flex: 1;
}
.input-with-btn .btn {
    white-space: nowrap;
    flex-shrink: 0;
}

/* ---------- 登录方式按钮 ---------- */
.login-method-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}
.login-method-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 12px;
    background: var(--cream-surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-card);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}
.login-method-btn:hover {
    border-color: var(--charcoal-40);
    background: var(--charcoal-04);
}
.login-method-btn.active {
    border-color: var(--charcoal);
    background: var(--charcoal);
    color: var(--off-white);
}
.method-name {
    font-size: 14px;
    font-weight: 500;
}

.select-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235f5f5d' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    width: auto;
    min-width: 160px;
}

/* ---------- Flash 消息 ---------- */
.flash-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px 0;
}
.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 8px;
}
.flash-error {
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid rgba(179, 58, 58, 0.2);
}
.flash-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(45, 125, 70, 0.2);
}

/* ---------- 认证页面 ---------- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 40px);
    padding: 40px 24px;
}
.auth-card {
    width: 100%;
    max-width: 400px;
}
.auth-title {
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.9px;
    margin-bottom: 8px;
}
.auth-subtitle {
    color: var(--muted);
    margin-bottom: 32px;
}
.auth-form {
    margin-bottom: 24px;
}
.auth-footer {
    text-align: center;
    font-size: 14px;
    color: var(--muted);
}
.auth-footer a {
    color: var(--charcoal);
    font-weight: 600;
}

/* ---------- 账号卡片 ---------- */
.account-list,
.account-list-full {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.account-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--cream-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    transition: border-color 0.15s;
}
.account-card:hover {
    border-color: var(--border-interactive);
}
.account-status {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-pill);
    flex-shrink: 0;
}
.account-status.active {
    background: var(--success);
}
.account-status.expired {
    background: var(--error);
}
.account-status.disabled {
    background: var(--muted);
}
.account-info {
    flex: 1;
    min-width: 0;
}
.account-name {
    font-weight: 600;
    font-size: 16px;
    line-height: 1.25;
}
.account-meta {
    font-size: 13px;
    color: var(--muted);
    margin-top: 2px;
}
.account-status-text {
    font-size: 13px;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: var(--charcoal-04);
    color: var(--muted);
    white-space: nowrap;
}
.account-status-text.active {
    background: var(--success-bg);
    color: var(--success);
}
.account-status-text.expired {
    background: var(--error-bg);
    color: var(--error);
}
.account-status-text.disabled {
    background: var(--charcoal-04);
    color: var(--muted);
}
.account-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

@media (max-width: 640px) {
    .account-card {
        flex-wrap: wrap;
    }
    .account-actions {
        width: 100%;
        margin-top: 8px;
    }
}

/* ---------- 签到结果标签 ---------- */
.result-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.result-tag {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    background: var(--charcoal-04);
    color: var(--muted);
}
.result-tag.success {
    background: var(--success-bg);
    color: var(--success);
}
.result-tag.fail {
    background: var(--error-bg);
    color: var(--error);
}

/* ---------- 日志列表 ---------- */
.log-list,
.log-list-full {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.log-item {
    padding: 14px 18px;
    background: var(--cream-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    font-size: 14px;
}
.log-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}
.log-badge {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: var(--radius-pill);
    font-weight: 600;
}
.log-badge.success {
    background: var(--success-bg);
    color: var(--success);
}
.log-badge.fail {
    background: var(--error-bg);
    color: var(--error);
}
.log-account {
    font-weight: 600;
    font-size: 14px;
}
.log-time {
    margin-left: auto;
    font-size: 13px;
    color: var(--muted);
}
.log-message {
    color: var(--charcoal-82);
    line-height: 1.50;
}

/* ---------- 筛选栏 ---------- */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}
.page-info {
    font-size: 14px;
    color: var(--muted);
}

/* ---------- 空状态 ---------- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--muted);
}
.empty-state p {
    margin-bottom: 16px;
}

.loading-text {
    text-align: center;
    padding: 32px;
    color: var(--muted);
}

/* ---------- 信息块 ---------- */
.info-block {
    font-size: 15px;
    line-height: 1.60;
    color: var(--charcoal-82);
}
.info-block p {
    margin-bottom: 8px;
}
.info-block ul {
    margin: 8px 0 12px;
}
.info-block li {
    margin-bottom: 4px;
}
.text-muted {
    color: var(--muted);
    font-size: 14px;
}

/* ---------- 设置表单 ---------- */
.settings-form {
    max-width: 480px;
}

/* ---------- Toast 通知 ---------- */
.toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    padding: 12px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--charcoal);
    color: var(--off-white);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    animation: toastIn 0.25s ease;
    max-width: 360px;
}
.toast.success {
    background: var(--success);
}
.toast.error {
    background: var(--error);
}
@keyframes toastIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 页脚 ---------- */
.footer {
    text-align: center;
    padding: 24px;
    margin-top: auto;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--muted);
    font-weight: 400;
    letter-spacing: 0.5px;
}