/* ============================================
   唯璐通行证 SSO v2.1 — 极简专业风格
   去图标化，纯文字+色彩块设计
   ============================================ */

:root {
    --primary: #667eea;
    --primary-light: #8b9cf7;
    --primary-dark: #5a6fd6;
    --secondary: #764ba2;
    --gradient: linear-gradient(135deg, #667eea, #764ba2);
    --bg: #f5f5f7;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f8fa;
    --bg-input: #f0f0f2;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-muted: #aeaeb2;
    --border: #e5e5ea;
    --success: #34c759;
    --error: #ff3b30;
    --warning: #ff9500;
    --radius: 14px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 2px 20px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===== WEB 单页面 ===== */

.web-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.web-inner {
    max-width: 400px;
    width: 100%;
}

/* Brand */
.brand {
    text-align: center;
    margin-bottom: 32px;
}

.brand-name {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand-name .accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-tagline {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Auth Card */
.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.auth-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.form-group { margin-bottom: 14px; }

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 6px;
    display: block;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text);
    outline: none;
    transition: all 0.2s;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.12);
}

.form-group input::placeholder { color: var(--text-muted); }

.code-row {
    display: flex;
    gap: 8px;
}
.code-row input { flex: 1; }
.code-row .btn { width: auto; white-space: nowrap; flex-shrink: 0; }

.phone-display {
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-bottom: 14px;
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
}
.phone-display .change { color: var(--primary); text-decoration: none; font-size: 12px; margin-left: 8px; }

.btn {
    display: block;
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.15s;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
}
.btn-primary:hover { opacity: 0.92; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.auth-links {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}
.auth-links a { color: var(--primary); text-decoration: none; font-weight: 500; }
.auth-links a:hover { text-decoration: underline; }

.alert {
    padding: 10px 14px;
    border-radius: var(--radius-xs);
    margin-bottom: 14px;
    font-size: 13px;
}

.alert-error { background: #fff2f0; border: 1px solid #ffccc7; color: var(--error); }
.alert-success { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; }

/* Ecosystem */
.eco-section {
    margin-top: 24px;
    text-align: center;
}

.eco-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.eco-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.eco-link {
    padding: 10px 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    transition: all 0.15s;
}

.eco-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* ===== APP 模式 ===== */

.app-page {
    min-height: 100vh;
    background: var(--bg);
    padding-bottom: calc(60px + var(--safe-bottom));
    max-width: 480px;
    margin: 0 auto;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(245,245,247,0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    min-height: 48px;
}

.app-header .title {
    font-size: 17px;
    font-weight: 700;
}
.app-header .title .accent { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.app-header .avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
}

.app-back {
    font-size: 22px;
    line-height: 1;
    text-decoration: none;
    color: var(--primary);
    font-weight: 300;
}

.app-content {
    padding: 12px 16px 20px;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Bottom Tabs */
.app-tabs {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    max-width: 480px;
    width: 100%;
    background: rgba(245,245,247,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    display: flex;
    padding-bottom: var(--safe-bottom);
}

.tab-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 0 4px;
    transition: color 0.15s;
}

.tab-btn .tab-label { font-size: 10px; font-weight: 500; margin-top: 1px; }

.tab-btn.active { color: var(--primary); }

/* Section Title */
.section-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}

/* Cards */
.card-grid { display: flex; flex-direction: column; gap: 10px; }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    transition: all 0.15s;
    text-decoration: none;
    color: var(--text);
    display: block;
    cursor: pointer;
}
.card:active { background: var(--bg-card-hover); }

.card-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.card-badge {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
}

.badge-blue { background: #667eea; }
.badge-purple { background: #764ba2; }
.badge-green { background: #34c759; }
.badge-orange { background: #ff9500; }
.badge-red { background: #ff3b30; }
.badge-cyan { background: #5ac8fa; }
.badge-gray { background: #8e8e93; }

.card-info { flex: 1; min-width: 0; }
.card-info .name { font-size: 15px; font-weight: 600; }
.card-info .desc { font-size: 12px; color: var(--text-secondary); margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.card-tag {
    font-size: 11px;
    padding: 2px 10px;
    border-radius: 20px;
    background: #f0f0f2;
    color: var(--text-secondary);
    white-space: nowrap;
}
.card-tag.success { background: #f6ffed; color: #389e0d; }
.card-tag.warning { background: #fff7e6; color: #d46b08; }
.card-tag.danger { background: #fff2f0; color: #cf1322; }

/* Welcome card */
.welcome-card {
    background: var(--gradient);
    border-radius: var(--radius);
    padding: 20px;
    color: #fff;
    margin-bottom: 16px;
}

.welcome-card h2 { font-size: 18px; font-weight: 700; margin-bottom: 2px; }
.welcome-card p { font-size: 13px; opacity: 0.85; margin-bottom: 14px; }

.welcome-stats { display: flex; gap: 24px; }
.welcome-stats .stat { text-align: center; }
.welcome-stats .stat .num { font-size: 20px; font-weight: 700; }
.welcome-stats .stat .label { font-size: 11px; opacity: 0.7; margin-top: 1px; }

/* Connected Apps */
.connected-list { display: flex; flex-direction: column; gap: 10px; }

.app-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-item .app-meta { flex: 1; }
.app-item .app-meta h4 { font-size: 14px; font-weight: 600; }
.app-item .app-meta p { font-size: 11px; color: var(--text-muted); margin-top: 1px; }

.disconnect-btn {
    background: none;
    border: 1px solid #ffccc7;
    color: var(--error);
    font-size: 11px;
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.eco-apps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.eco-app {
    padding: 14px 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-align: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    transition: all 0.15s;
}
.eco-app:active { background: var(--bg-card-hover); }
.eco-app .letter { font-size: 18px; font-weight: 700; display: block; margin-bottom: 4px; color: var(--text); }
.eco-app.connected { border-color: #b7eb8f; }

/* Security List */
.sec-list { display: flex; flex-direction: column; gap: 1px; }
.sec-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
    margin-bottom: 8px;
}

.sec-item .sec-info { flex: 1; }
.sec-item .sec-info h4 { font-size: 14px; font-weight: 600; }
.sec-item .sec-info p { font-size: 12px; color: var(--text-secondary); margin-top: 1px; }

.sec-status {
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 20px;
}
.sec-status.on { background: #f6ffed; color: #389e0d; }
.sec-status.off { background: #f0f0f2; color: var(--text-muted); }
.sec-status.warn { background: #fff7e6; color: #d46b08; }
.sec-arrow { color: var(--text-muted); font-size: 18px; font-weight: 300; }

/* Profile Menu */
.profile-header {
    text-align: center;
    padding: 20px 0 16px;
}

.profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin: 0 auto 10px;
}

.profile-header h3 { font-size: 17px; font-weight: 700; }
.profile-header p { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.menu-list { display: flex; flex-direction: column; gap: 8px; }
.menu-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    transition: all 0.1s;
}
.menu-item:active { background: var(--bg-card-hover); }
.menu-item .label { flex: 1; }
.menu-item .value { font-size: 12px; color: var(--text-muted); margin-right: 8px; }
.menu-item .arrow { color: var(--text-muted); font-size: 16px; font-weight: 300; }

.logout-btn {
    display: block;
    width: 100%;
    padding: 13px;
    margin-top: 20px;
    background: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: var(--radius-sm);
    color: var(--error);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
}

/* Settings pages */
.settings-page .back-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.settings-page .back-row a {
    text-decoration: none;
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
}
.settings-page .back-row .spacer { flex: 1; }

.setting-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 16px;
}

.setting-card .label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.setting-card .value { font-size: 16px; font-weight: 500; }

/* Info box */
.info-box {
    background: #f8f8fa;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}
.info-box strong { color: var(--text); display: block; margin-bottom: 4px; }

/* QR Code */
.qr-wrap {
    text-align: center;
    padding: 16px 0;
}
.qr-wrap canvas { border-radius: 10px; }
.qr-wrap .secret {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 10px;
    font-family: monospace;
    letter-spacing: 1px;
    word-break: break-all;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 14px;
}

.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* Media queries */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1c1c1e;
        --bg-card: #2c2c2e;
        --bg-card-hover: #333336;
        --bg-input: #3a3a3c;
        --text: #f5f5f7;
        --text-secondary: #98989d;
        --text-muted: #636366;
        --border: #38383a;
        --shadow: 0 2px 20px rgba(0,0,0,0.2);
        --shadow-lg: 0 8px 40px rgba(0,0,0,0.25);
    }
    .alert-error { background: #3a1a1a; border-color: #5c1a1a; }
    .alert-success { background: #1a3a1a; border-color: #1a5c1a; }
    .card-tag { background: #3a3a3c; }
    .card-tag.success { background: #1a3a1a; color: #4ade80; }
    .card-tag.warning { background: #3a2a1a; color: #fbbf24; }
    .card-tag.danger { background: #3a1a1a; color: #f87171; }
    .sec-status.on { background: #1a3a1a; color: #4ade80; }
    .sec-status.off { background: #3a3a3c; color: #8e8e93; }
    .sec-status.warn { background: #3a2a1a; color: #fbbf24; }
    .info-box { background: #2c2c2e; }
    .logout-btn { background: #3a1a1a; border-color: #5c1a1a; }
    .app-header { background: rgba(28,28,30,0.9); }
    .app-tabs { background: rgba(28,28,30,0.92); }
    .phone-display { background: #3a3a3c; }
}

::-webkit-scrollbar { width: 0; }