/* ============================================
   Nexus Panel — 统一样式表
   配色与主站保持一致 (紫色暗黑主题)
   ============================================ */
:root {
    --bg:           #06070a;
    --bg2:          #0c0e14;
    --bg3:          #13161f;
    --card-bg:      rgba(13, 16, 22, .92);
    --accent:       #6c5ce7;
    --accent2:      #a855f7;
    --accent-l:     #c4b5fd;
    --accent-light: #c4b5fd;
    --cyan:         #22d3ee;
    --green:        #34d399;
    --red:          #f87171;
    --gold:         #fbbf24;
    --text:         #f1f5f9;
    --text2:        #94a3b8;
    --text3:        #64748b;
    --border:       #1e293b;
    --border2:      #2d3748;
    --card:         rgba(13,16,22,.92);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Segoe UI','Microsoft YaHei',-apple-system,sans-serif;
    background: var(--bg); color: var(--text);
    line-height: 1.7; min-height: 100vh;
}
a { color: var(--accent-l); text-decoration: none; transition: .2s; }
a:hover { color: #fff; }
::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
input, select, textarea, button { font-family: inherit; }

/* ===== Auth Page ===== */
.auth-wrapper {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 2rem; position: relative; overflow: hidden;
}
.auth-wrapper::before {
    content: ''; position: absolute; width: 600px; height: 600px;
    top: -200px; left: -100px; background: var(--accent);
    border-radius: 50%; filter: blur(140px); opacity: .25; pointer-events: none;
}
.auth-wrapper::after {
    content: ''; position: absolute; width: 500px; height: 500px;
    bottom: -150px; right: -100px; background: var(--accent2);
    border-radius: 50%; filter: blur(140px); opacity: .2; pointer-events: none;
}
.auth-box {
    position: relative; z-index: 1; width: 100%; max-width: 420px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: 1rem; padding: 2.5rem; backdrop-filter: blur(12px);
}
.auth-logo {
    text-align: center; font-size: 2rem; font-weight: 800; margin-bottom: .3rem;
    background: linear-gradient(135deg, var(--accent-l), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.auth-sub { text-align: center; color: var(--text2); font-size: .85rem; margin-bottom: 2rem; }
.auth-tabs { display: flex; gap: 0; margin-bottom: 1.5rem; }
.auth-tab {
    flex: 1; padding: .65rem; text-align: center; cursor: pointer;
    background: transparent; color: var(--text2); border: 1px solid var(--border);
    font-weight: 600; font-size: .9rem; transition: .25s;
}
.auth-tab:first-child { border-radius: .5rem 0 0 .5rem; }
.auth-tab:last-child  { border-radius: 0 .5rem .5rem 0; }
.auth-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.auth-form { display: none; }
.auth-form.active { display: block; }

/* ===== Form Elements ===== */
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: .82rem; color: var(--text2); margin-bottom: .4rem; font-weight: 500; }
.form-input {
    width: 100%; padding: .7rem 1rem; background: var(--bg2); border: 1px solid var(--border);
    border-radius: .5rem; color: var(--text); font-size: .9rem; transition: border .25s;
    outline: none;
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: var(--text2); opacity: .6; }
select.form-input { cursor: pointer; appearance: none; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    padding: .75rem 1.8rem; border: none; border-radius: .5rem;
    font-size: .9rem; font-weight: 700; cursor: pointer; transition: .25s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff; box-shadow: 0 4px 20px rgba(108,92,231,.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(108,92,231,.45); }
.btn-full { width: 100%; }
.btn-sm { padding: .5rem 1rem; font-size: .82rem; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { opacity: .85; }
.btn-outline {
    background: transparent; color: var(--text); border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent-l); }
.btn-success { background: var(--green); color: #000; }

/* ===== Alerts ===== */
.alert {
    padding: .8rem 1.2rem; border-radius: .5rem; font-size: .88rem;
    margin-bottom: 1.2rem; border: 1px solid transparent;
}
.alert-success { background: rgba(52,211,153,.1); border-color: rgba(52,211,153,.3); color: var(--green); }
.alert-error   { background: rgba(248,113,113,.1); border-color: rgba(248,113,113,.3); color: var(--red); }
.alert-info    { background: rgba(108,92,231,.1); border-color: rgba(108,92,231,.3); color: var(--accent-l); }

/* ===== Dashboard Layout ===== */
.dash-wrapper {
    min-height: 100vh; display: flex; flex-direction: column;
}
.dash-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(6,7,10,.9); backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.dash-nav-inner {
    max-width: 1100px; margin: 0 auto; height: 56px;
    display: flex; align-items: center; justify-content: space-between; padding: 0 1.5rem;
}
.dash-logo {
    font-size: 1.3rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent-l), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.dash-user { display: flex; align-items: center; gap: 1rem; }
.dash-user-name { color: var(--text2); font-size: .85rem; }
.dash-user-name strong { color: var(--text); }
.dash-user-badge {
    padding: .2rem .6rem; border-radius: 4px; font-size: .7rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: .04em;
}
.badge-admin { background: rgba(251,191,36,.15); color: var(--gold); border: 1px solid rgba(251,191,36,.3); }
.badge-active { background: rgba(52,211,153,.12); color: var(--green); border: 1px solid rgba(52,211,153,.3); }
.badge-expired { background: rgba(248,113,113,.12); color: var(--red); border: 1px solid rgba(248,113,113,.3); }
.badge-none { background: rgba(148,163,184,.1); color: var(--text2); border: 1px solid var(--border); }
.dash-logout { color: var(--text2); font-size: .82rem; }
.dash-logout:hover { color: var(--red); }

.dash-body {
    flex: 1; max-width: 1100px; width: 100%; margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ===== Tabs ===== */
.tabs { display: flex; gap: 0; margin-bottom: 2rem; border-bottom: 1px solid var(--border); }
.tab-btn {
    padding: .75rem 1.5rem; cursor: pointer; background: none; border: none;
    color: var(--text2); font-size: .9rem; font-weight: 600;
    border-bottom: 2px solid transparent; transition: .25s; position: relative;
    bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent-l); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: tabFade .3s ease; }
@keyframes tabFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ===== Cards ===== */
.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: .75rem; padding: 1.5rem; margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}
.card-title {
    font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem;
    padding-bottom: .8rem; border-bottom: 1px solid var(--border);
}
.card-title small { font-weight: 400; color: var(--text2); font-size: .78rem; margin-left: .5rem; }

/* ===== Subscription Status ===== */
.sub-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.sub-item { padding: 1rem; background: var(--bg2); border-radius: .5rem; border: 1px solid var(--border); }
.sub-label { font-size: .75rem; color: var(--text2); text-transform: uppercase; letter-spacing: .06em; margin-bottom: .3rem; }
.sub-value { font-size: 1.05rem; font-weight: 700; }
.sub-value.green { color: var(--green); }
.sub-value.red { color: var(--red); }
.sub-value.gold { color: var(--gold); }

/* ===== Key Input ===== */
.key-input-row { display: flex; gap: .8rem; }
.key-input-row .form-input { flex: 1; font-family: 'Consolas','Courier New',monospace; letter-spacing: .08em; text-transform: uppercase; }

/* ===== Changelog ===== */
.changelog-item {
    padding: 1.2rem; margin-bottom: 1rem; background: var(--bg2);
    border-radius: .5rem; border: 1px solid var(--border); border-left: 3px solid var(--accent);
}
.changelog-header { display: flex; align-items: center; gap: .8rem; margin-bottom: .6rem; }
.changelog-ver {
    padding: .15rem .6rem; background: rgba(108,92,231,.15); color: var(--accent-l);
    border-radius: 4px; font-size: .78rem; font-weight: 700; font-family: monospace;
}
.changelog-title { font-weight: 700; font-size: .95rem; }
.changelog-date { margin-left: auto; font-size: .75rem; color: var(--text2); }
.changelog-body { color: var(--text2); font-size: .88rem; line-height: 1.8; white-space: pre-line; }

/* ===== Download ===== */
.download-card {
    text-align: center; padding: 3rem 2rem;
    background: var(--bg2); border-radius: .75rem;
    border: 1px solid var(--border); margin-bottom: 2rem;
}
.download-icon { font-size: 3rem; margin-bottom: 1rem; }
.download-ver { color: var(--text2); margin-bottom: 1.5rem; }
.download-notice { font-size: .82rem; color: var(--text2); margin-top: 1rem; }

/* ===== Table ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th { text-align: left; padding: .6rem .8rem; color: var(--text2); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--border); }
td { padding: .6rem .8rem; border-bottom: 1px solid rgba(30,41,59,.5); vertical-align: middle; }
tr:hover td { background: rgba(108,92,231,.04); }
.mono { font-family: 'Consolas','Courier New',monospace; font-size: .82rem; letter-spacing: .04em; }
.status-unused  { color: var(--text2); }
.status-active  { color: var(--green); }
.status-expired { color: var(--red); }
.status-banned  { color: var(--gold); }

/* ===== Admin Batch Form ===== */
.batch-form { display: flex; gap: .8rem; flex-wrap: wrap; align-items: flex-end; }
.batch-form .form-group { margin-bottom: 0; }
.generated-keys {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: .5rem; padding: 1rem; max-height: 300px; overflow-y: auto;
    font-family: monospace; font-size: .85rem; line-height: 1.8;
}

/* ===== Pagination ===== */
.pagination { display: flex; gap: .3rem; margin-top: 1rem; }
.page-btn {
    padding: .4rem .7rem; background: var(--bg2); border: 1px solid var(--border);
    border-radius: .3rem; color: var(--text2); font-size: .82rem; cursor: pointer;
    transition: .2s;
}
.page-btn:hover, .page-btn.active { border-color: var(--accent); color: var(--accent-l); }

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .tabs { flex-wrap: wrap; }
    .tab-btn { flex: 1; min-width: 0; padding: .6rem .8rem; font-size: .82rem; }
    .key-input-row { flex-direction: column; }
    .batch-form { flex-direction: column; }
    .sub-info { grid-template-columns: 1fr; }
    .dash-nav-inner { padding: 0 1rem; }
    .dash-body { padding: 1.5rem 1rem; }
    .sub-card { flex-direction: column; text-align: center; }
    .sub-expire { text-align: center; }
    .inline-form { flex-direction: column; }
    .gen-form-row { flex-direction: column; }
    .form-row-2 { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .card-header-row { flex-direction: column; align-items: flex-start; }
}

/* ===== Additional - Auth Page (index.php) ===== */
.auth-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh;
    background: radial-gradient(ellipse at 30% 20%, rgba(108,92,231,.08), transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(168,85,247,.06), transparent 60%),
                var(--bg);
}
.auth-container {
    width: 100%; max-width: 420px; padding: 2.5rem;
    background: var(--card); border: 1px solid var(--border);
    border-radius: 1rem; backdrop-filter: blur(20px);
}
.auth-subtitle { text-align: center; color: var(--text2); font-size: .85rem; margin: .3rem 0 1.5rem; }
.auth-form.hidden { display: none; }
.auth-footer { text-align: center; margin-top: 1.5rem; font-size: .85rem; }
.optional { font-weight: 400; color: var(--text3); font-size: .78rem; }
.btn-block { width: 100%; }

/* ===== Additional - Top Bar (dashboard/admin) ===== */
.topbar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(6,7,10,.9); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.topbar-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 56px; padding: 0 1.5rem;
}
.topbar-logo {
    font-size: 1.3rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent-light), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    display: flex; align-items: center; gap: .5rem;
}
.topbar-right { display: flex; align-items: center; gap: .8rem; }
.topbar-user { color: var(--text2); font-size: .85rem; display: flex; align-items: center; gap: .5rem; }

/* ===== Additional - Container ===== */
.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

/* ===== Additional - Subscription Card (dashboard) ===== */
.sub-card {
    display: flex; justify-content: space-between; align-items: center;
    background: linear-gradient(135deg, rgba(108,92,231,.1), rgba(168,85,247,.06));
    border: 1px solid rgba(108,92,231,.2); border-radius: .75rem;
    padding: 1.5rem 2rem; margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem;
}
.sub-card .sub-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text3); margin-bottom: .2rem; }
.sub-card .sub-type { font-size: 1.4rem; font-weight: 700; }
.sub-card .sub-status { font-size: .85rem; margin-top: .25rem; }
.sub-card .sub-status.active { color: var(--green); }
.sub-card .sub-status.inactive { color: var(--text3); }
.sub-card .sub-expire { font-size: .88rem; color: var(--text2); text-align: right; }
.sub-card .sub-expire strong { color: var(--text); font-size: .95rem; }
.sub-card .sub-hwid { font-size: .78rem; color: var(--text3); margin-top: .3rem; }

/* ===== Additional - Tab Links (dashboard/admin) ===== */
.tab {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .8rem 1.2rem; color: var(--text2); font-size: .88rem;
    font-weight: 600; border-bottom: 2px solid transparent; transition: .2s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent-light); border-bottom-color: var(--accent); }
.tab svg { opacity: .7; }
.tab.active svg { opacity: 1; }
.tab-panel.hidden { display: none; }

/* ===== Additional - Inline Form ===== */
.inline-form { display: flex; gap: .6rem; align-items: stretch; }
.inline-form .input, .inline-form input[type="text"] { flex: 1; }
.inline { display: inline; }
.input-key {
    font-family: 'Cascadia Code','Consolas',monospace !important;
    letter-spacing: .05em; font-size: .95rem;
}
.input, input[type="text"], input[type="password"], input[type="email"],
input[type="number"], select, textarea {
    width: 100%; padding: .65rem .9rem; background: var(--bg2);
    border: 1px solid var(--border); border-radius: .45rem;
    color: var(--text); font-size: .9rem; font-family: inherit;
    transition: border-color .2s; outline: none;
}
.input:focus, input[type="text"]:focus, input[type="password"]:focus,
input[type="email"]:focus, input[type="number"]:focus, select:focus, textarea:focus {
    border-color: var(--accent); box-shadow: 0 0 0 2px rgba(108,92,231,.15);
}
textarea { resize: vertical; }
select { cursor: pointer; }

.settings-form .form-group { max-width: 400px; }
.settings-form .btn { margin-top: .5rem; }
.gen-form-row { display: flex; gap: 1rem; align-items: flex-end; flex-wrap: wrap; }
.gen-form-row .form-group { min-width: 150px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ===== Additional - Stats Grid ===== */
.stats-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: .8rem; margin-bottom: 1.5rem;
}
.stat-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: .6rem; padding: 1rem 1.2rem; text-align: center;
}
.stat-val { font-size: 1.8rem; font-weight: 800; color: var(--text); }
.stat-label {
    font-size: .75rem; color: var(--text3); text-transform: uppercase;
    letter-spacing: .06em; margin-top: .1rem;
}

/* ===== Additional - Badges ===== */
.badge {
    display: inline-block; padding: .15rem .5rem; border-radius: .25rem;
    font-size: .72rem; font-weight: 600; letter-spacing: .02em;
}
.badge-green  { background: rgba(52,211,153,.12);  color: var(--green); }
.badge-red    { background: rgba(248,113,113,.12); color: var(--red); }
.badge-gray   { background: rgba(100,116,139,.12); color: var(--text3); }
.badge-purple { background: rgba(108,92,231,.15);  color: var(--accent-light); }

/* ===== Additional - Filter Group ===== */
.filter-group { display: flex; gap: .3rem; }
.card-header-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.card-desc { color: var(--text2); font-size: .85rem; margin-bottom: 1rem; }

/* ===== Additional - Download ===== */
.download-box {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 1rem; background: var(--bg2); border: 1px solid var(--border);
    border-radius: .6rem; margin-top: .8rem;
}
.download-info { display: flex; align-items: center; gap: 1rem; }
.download-icon-wrap {
    width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
    background: rgba(108,92,231,.1); border-radius: .5rem;
}
.download-name { font-weight: 700; font-size: 1rem; }
.download-ver { font-size: .8rem; color: var(--text3); }

/* ===== Additional - Changelog ===== */
.changelog-list { margin-top: .5rem; }
.changelog-content { font-size: .85rem; color: var(--text2); line-height: 1.8; padding-left: .5rem; }

/* ===== Additional - Info Grid ===== */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: .8rem; }
.info-item { padding: .8rem; background: var(--bg2); border-radius: .45rem; }
.info-label { display: block; font-size: .75rem; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .2rem; }
.info-value { font-size: .9rem; color: var(--text); }

/* ===== Additional - Action Cell ===== */
.action-cell { display: flex; gap: .3rem; flex-wrap: wrap; }
.hwid-code { font-size: .72rem; max-width: 120px; overflow: hidden; text-overflow: ellipsis; display: inline-block; vertical-align: middle; }

/* ===== Additional - Misc ===== */
.text-muted { color: var(--text3); }
.empty-state { color: var(--text3); text-align: center; padding: 2rem; font-size: .9rem; }
.hidden { display: none !important; }
.btn-ghost { background: transparent; color: var(--text2); border: none; }
.btn-ghost:hover { color: var(--text); }
.btn-disabled { background: var(--bg3); color: var(--text3); cursor: not-allowed; border: 1px solid var(--border); }
code {
    font-family: 'Cascadia Code','Consolas',monospace; font-size: .82rem;
    background: var(--bg2); padding: .15rem .4rem; border-radius: .25rem; color: var(--accent-light);
}
.generated-keys textarea {
    font-family: 'Cascadia Code','Consolas',monospace; font-size: .82rem; line-height: 1.8;
}