:root {
    --primary: #6c5ce7;
    --primary-light: #a29bfe;
    --primary-dark: #5a4bd1;
    --accent: #00cec9;
    --bg: #0f0f23;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --text: #e0e0e0;
    --text-secondary: #8892b0;
    --border: #2d2d4a;
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #e17055;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, .3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 14px;
}

a {
    color: var(--primary-light);
    text-decoration: none;
}

a:hover {
    color: var(--accent);
}

.header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 60px;
    padding: 0 24px;
    background: rgba(26, 26, 46, .94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.brand {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 4px;
    flex: 1;
    justify-content: center;
}

.nav a,
.side-nav a {
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all .2s;
}

.nav a {
    padding: 8px 16px;
}

.nav a.active,
.nav a:hover,
.side-nav a.active,
.side-nav a:hover {
    background: var(--primary);
    color: #fff;
}

.container {
    width: min(1200px, calc(100% - 32px));
    margin: 24px auto 56px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

.panel + .panel {
    margin-top: 16px;
}

.title {
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
}

.hero {
    display: grid;
    grid-template-columns: 1.35fr .8fr;
    align-items: center;
    gap: 24px;
    min-height: 280px;
}

.hero h1 {
    margin-bottom: 12px;
    font-size: 38px;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.muted,
.hero p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.stat {
    border-left: 3px solid var(--primary);
}

.stat strong {
    display: block;
    margin-top: 8px;
    color: var(--accent);
    font-size: 26px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin-bottom: 16px;
}

.form-group.full {
    grid-column: 1 / -1;
}

label {
    color: var(--text-secondary);
    font-size: 13px;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    padding: 10px 14px;
    font: inherit;
}

input:focus,
textarea:focus {
    border-color: var(--primary);
    outline: none;
}

textarea {
    min-height: 84px;
    resize: vertical;
}

select {
    min-height: 38px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    padding: 8px 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
}

.btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-1px);
}

.user-bar {
    align-items: center;
    display: flex;
    gap: 10px;
    min-width: 0;
}

.avatar,
.profile-avatar {
    border: 1px solid var(--border);
    border-radius: 50%;
    object-fit: cover;
}

.avatar {
    height: 30px;
    width: 30px;
}

.profile-avatar {
    height: 54px;
    margin-top: 12px;
    width: 54px;
}

.user-name {
    color: var(--text);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.link-button {
    border: 0;
    background: transparent;
    color: var(--primary-light);
    cursor: pointer;
    font: inherit;
    padding: 0;
}

.link-button:hover {
    color: var(--accent);
}

.qq-login {
    border-color: transparent;
    background: #12b7f5;
    color: #fff;
}

.qq-login:hover {
    border-color: transparent;
    background: #0aa3dc;
    color: #fff;
}

.btn-danger {
    border-color: transparent;
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    color: #fff;
    opacity: .9;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.inline-form {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.goods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.goods-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all .2s;
}

.goods-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.goods-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.goods-cost {
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.goods-desc {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 16px;
}

.signin-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin: 16px auto;
    max-width: 480px;
}

.week-header {
    color: var(--text-secondary);
    font-size: 12px;
    padding: 6px 0;
    text-align: center;
}

.signin-day {
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    font-size: 13px;
    height: 40px;
    justify-content: center;
    transition: all .2s;
}

.signin-day.signed {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.signin-day.today {
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 700;
}

.signin-day.today.signed {
    background: var(--accent);
    border-color: var(--accent);
    color: #111827;
}

.points-summary {
    align-items: center;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.notice,
.error {
    margin-bottom: 16px;
    border-radius: 8px;
    padding: 12px 16px;
}

.notice {
    border: 1px solid rgba(0, 184, 148, .45);
    background: rgba(0, 184, 148, .12);
    color: var(--success);
}

.error {
    border: 1px solid rgba(225, 112, 85, .45);
    background: rgba(225, 112, 85, .12);
    color: var(--danger);
}

.qr {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th,
td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
    white-space: nowrap;
}

th {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
}

tr:hover td {
    background: var(--bg-card-hover);
}

.badge {
    display: inline-block;
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 500;
}

.badge-pending,
.badge-warning {
    background: rgba(253, 203, 110, .15);
    color: var(--warning);
}

.badge-paid,
.badge-active,
.badge-success {
    background: rgba(0, 184, 148, .15);
    color: var(--success);
}

.badge-expired,
.badge-cancelled,
.badge-void,
.badge-info {
    background: rgba(108, 92, 231, .15);
    color: var(--primary-light);
}

.login-page {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
}

.login-box {
    width: min(380px, 100%);
}

.login-choice {
    align-items: center;
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.login-choice h1 {
    font-size: 28px;
    margin-bottom: 8px;
}

.admin-shell {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    border-right: 1px solid var(--border);
    background: var(--bg-card);
    padding: 22px 16px;
}

.sidebar .brand {
    display: block;
    margin-bottom: 24px;
}

.side-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.side-nav a,
.side-nav button {
    display: flex;
    width: 100%;
    border: 0;
    padding: 11px 12px;
    background: transparent;
    color: var(--text-secondary);
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.admin-main {
    min-width: 0;
    padding: 24px;
}

.admin-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.code {
    color: var(--accent);
    font-family: Consolas, "Courier New", monospace;
    font-weight: 700;
}

@media (max-width: 760px) {
    .header {
        align-items: flex-start;
        flex-direction: column;
        height: auto;
        padding: 14px;
    }

    .nav {
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
    }

    .user-bar {
        width: 100%;
        justify-content: flex-end;
    }

    .hero,
    .login-choice,
    .grid,
    .form-grid,
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .login-choice {
        align-items: flex-start;
        flex-direction: column;
    }

    .sidebar {
        position: static;
        height: auto;
    }

    .hero h1 {
        font-size: 30px;
    }
}