/* ====== 环庆公司管理系统 - 科技风全局样式 ====== */
:root {
    --bg-deep: #0a0e1a;
    --bg-card: rgba(15, 22, 42, 0.85);
    --bg-hover: rgba(59, 130, 246, 0.08);
    --primary: #3b82f6;
    --primary-glow: rgba(59, 130, 246, 0.35);
    --accent-cyan: #00d4ff;
    --accent-purple: #a855f7;
    --accent-green: #22c55e;
    --accent-orange: #f59e0b;
    --text-primary: #e0e7ff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(59, 130, 246, 0.15);
    --border-glow: rgba(59, 130, 246, 0.3);
    --sidebar-width: 220px;
    --topbar-height: 56px;
    --card-radius: 12px;
    --transition-speed: .25s;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* ====== Background Grid Effect (applied to main content) ====== */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--topbar-height);
    min-height: calc(100vh - var(--topbar-height));
    padding: 24px 0 40px;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    position: relative;
    overflow-x: auto;
    overflow-y: auto;
}

/* ====== Table wrapper scroll ====== */
.table-responsive {
    overflow-x: auto !important;
    overflow-y: auto !important;
    max-height: calc(100vh - 200px);
}

/* ====== Scrollbar ====== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(59, 130, 246, 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(59, 130, 246, 0.5); }

/* ====== Login ====== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-deep);
    position: relative;
    overflow: hidden;
}
/* Animated gradient background */
.login-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(168,85,247,.08) 0%, transparent 60%);
    animation: loginBgPulse 8s ease-in-out infinite alternate;
    pointer-events: none;
}
@keyframes loginBgPulse {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-30px, 20px) rotate(5deg); }
}
/* Grid overlay on login */
.login-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}
.login-card {
    width: 400px;
    padding: 40px;
    background: rgba(15, 22, 42, 0.9);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    box-shadow:
        0 0 40px rgba(59, 130, 246, 0.1),
        inset 0 1px 0 rgba(255,255,255,0.05);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(20px);
}
.login-card::before {
    content: '';
    position: absolute;
    top: -1px; left: 20%;
    width: 60%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent-cyan), transparent);
    border-radius: 2px;
}
.login-header { text-align: center; margin-bottom: 30px; }
.login-header h2 {
    color: #fff;
    font-weight: 700;
    margin-bottom: 6px;
    font-size: 22px;
    letter-spacing: 2px;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.login-header p { color: var(--text-muted); font-size: 13px; }
.login-card .form-label { color: var(--text-secondary); }
.login-card .form-control {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.login-card .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(255,255,255,0.08);
}
.login-card .form-control::placeholder { color: var(--text-muted); }
.login-card .btn-primary {
    background: linear-gradient(135deg, var(--primary), #2563eb);
    border: none;
    padding: 12px;
    font-size: 15px;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 2px;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}
.login-card .btn-primary:hover {
    box-shadow: 0 0 25px var(--primary-glow);
    transform: translateY(-1px);
}
.login-card .btn-primary:active { transform: translateY(0); }

/* ====== Sidebar ====== */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: rgba(8, 12, 26, 0.98);
    border-right: 1px solid var(--border-color);
    color: #fff;
    display: flex;
    flex-direction: column;
    z-index: 100;
    backdrop-filter: blur(10px);
}
.sidebar-brand {
    padding: 22px 20px;
    font-size: 17px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}
.sidebar-brand::after {
    content: '';
    position: absolute;
    bottom: -1px; left: 10%;
    width: 80%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}
.sidebar-brand i {
    font-size: 22px;
    color: var(--accent-cyan);
    filter: drop-shadow(0 0 6px rgba(0,212,255,0.4));
}
.sidebar-brand span { background: linear-gradient(135deg, #fff, var(--accent-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-list {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}
.nav-list li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all var(--transition-speed);
    border-left: 3px solid transparent;
    position: relative;
}
.nav-list li a:hover {
    background: var(--bg-hover);
    color: #fff;
}
.nav-list li a.active {
    background: rgba(59, 130, 246, 0.1);
    color: #fff;
    border-left-color: var(--primary);
    box-shadow: inset 0 0 20px rgba(59, 130, 246, 0.05);
}
.nav-list li a.active i { color: var(--accent-cyan); filter: drop-shadow(0 0 4px rgba(0,212,255,0.3)); }
.nav-list li a i { width: 20px; text-align: center; font-size: 15px; }
.sidebar-footer {
    padding: 12px 0;
    border-top: 1px solid var(--border-color);
}
.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 20px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: all var(--transition-speed);
}
.sidebar-footer a:hover { color: var(--accent-orange); }

/* ====== Topbar ====== */
.topbar {
    position: fixed;
    top: 0; left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: rgba(10, 14, 26, 0.9);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    z-index: 99;
    backdrop-filter: blur(12px);
}
.topbar-title {
    font-size: 15px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.topbar-user {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}
.topbar-user i { font-size: 18px; color: var(--primary); }
.topbar-link {
    color: var(--text-muted);
    font-size: 16px;
    text-decoration: none;
    transition: all var(--transition-speed);
}
.topbar-link:hover { color: var(--accent-cyan); transform: scale(1.1); }

/* ====== Page Title ====== */
.page-title {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin: 0;
    position: relative;
    padding-left: 14px;
}
.page-title::before {
    content: '';
    position: absolute;
    left: 0; top: 2px;
    width: 3px; height: 20px;
    background: linear-gradient(180deg, var(--primary), var(--accent-cyan));
    border-radius: 2px;
}

/* ====== Card ====== */
.card {
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    transition: all var(--transition-speed);
    overflow: hidden;
}
.card:hover { border-color: var(--border-glow); }
.card-header {
    background: rgba(59, 130, 246, 0.05);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 20px;
}
.card-header h5 { color: #fff; font-weight: 600; font-size: 14px; }
.card-body { position: relative; }

/* ====== Table ====== */
.table thead th {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-cyan);
    font-weight: 500;
    font-size: 12px;
    padding: 10px 12px;
    border: none;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.table tbody td {
    padding: 8px 12px;
    vertical-align: middle;
    font-size: 13px;
    border-bottom: 1px solid rgba(59, 130, 246, 0.06);
    color: var(--text-primary);
}
.table tbody tr { transition: background var(--transition-speed); }
.table tbody tr:hover { background: rgba(59, 130, 246, 0.06); }
.table tfoot td,
.table tfoot tr.table-active td {
    padding: 10px 12px;
    font-size: 13px;
    border-top: 2px solid var(--border-glow);
    background: rgba(59, 130, 246, 0.18) !important;
    color: var(--accent-cyan) !important;
}
.table-active { background: rgba(59, 130, 246, 0.06) !important; }

/* ====== Stat Cards ====== */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 22px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    opacity: 0;
    transition: opacity var(--transition-speed);
}
.stat-card:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.stat-card:hover::before { opacity: 1; }
.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.stat-value {
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(135deg, #fff, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-value-cyan {
    background: linear-gradient(135deg, #e0f7ff, var(--accent-cyan));
    -webkit-background-clip: text;
}
.stat-value-primary {
    background: linear-gradient(135deg, #93c5fd, var(--primary));
    -webkit-background-clip: text;
}
.stat-value-success {
    background: linear-gradient(135deg, #86efac, var(--accent-green));
    -webkit-background-clip: text;
}
.stat-value-purple {
    background: linear-gradient(135deg, #d8b4fe, var(--accent-purple));
    -webkit-background-clip: text;
}

/* ====== Buttons ====== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #2563eb);
    border: none;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}
.btn-primary:hover {
    box-shadow: 0 0 20px var(--primary-glow);
    transform: translateY(-1px);
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}
.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #16a34a);
    border: none;
    transition: all var(--transition-speed);
}
.btn-success:hover {
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
    transform: translateY(-1px);
}
.btn-primary, .btn-success, .btn-outline-secondary, .btn-outline-danger {
    font-size: 13px;
    border-radius: 6px;
}
.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border-color);
    background: transparent;
    transition: all var(--transition-speed);
}
.btn-outline-secondary:hover {
    color: #fff;
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
}
.btn-outline-danger {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
    background: transparent;
    transition: all var(--transition-speed);
}
.btn-outline-danger:hover {
    color: #fff;
    background: #ef4444;
    border-color: #ef4444;
}

/* ====== Modal ====== */
.modal-content {
    border: 1px solid var(--border-glow);
    border-radius: 14px;
    background: rgba(12, 18, 36, 0.96);
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal-header {
    background: rgba(59, 130, 246, 0.08);
    color: #fff;
    border-bottom: 1px solid var(--border-color);
    border-radius: 14px 14px 0 0;
    padding: 14px 20px;
}
.modal-header .btn-close { filter: brightness(0) invert(0.6); }
.modal-header .btn-close:hover { filter: brightness(0) invert(1); }
.modal-header h5, .modal-header .modal-title {
    font-size: 15px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.modal-body { padding: 20px; max-height: 65vh; overflow-y: auto; }
.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 14px 20px;
}

/* ====== Form ====== */
.form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
/* 全局兜底：所有输入框文字在输入时也必须可见 */
input, textarea, select, .form-control, .form-select {
    color: #fff !important;
    background: #1e293b !important;
    caret-color: #3b82f6 !important;
    -webkit-text-fill-color: #fff !important;
}
/* 焦点状态也必须显式设色，防止Bootstrap默认样式覆盖 */
input:focus, textarea:focus, select:focus,
.form-control:focus, .form-select:focus {
    color: #fff !important;
    -webkit-text-fill-color: #fff !important;
    background: #1e293b !important;
}
input[type="number"] {
    -moz-appearance: textfield;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.form-control, .form-select {
    font-size: 13px;
    border-radius: 6px;
    border: 1px solid #4b5563;
    padding: 8px 12px;
    background: #1e293b;
    color: #fff;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: #1e293b;
    color: #fff;
}
.form-control::placeholder { color: #64748b; }
.form-select { background-color: #1e293b; }
.form-select option { background: #0a0e1a; color: var(--text-primary); }
.form-text { font-size: 11px; color: var(--text-muted); }

/* ====== Alert ====== */
.alert {
    font-size: 13px;
    border-radius: 8px;
    padding: 10px 16px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    background: rgba(15, 22, 42, 0.9);
    color: var(--text-primary);
    backdrop-filter: blur(8px);
}
.alert-success { border-color: rgba(34, 197, 94, 0.3); }
.alert-danger { border-color: rgba(239, 68, 68, 0.3); }
.alert-warning { border-color: rgba(245, 158, 11, 0.3); }
.alert-info { border-color: rgba(59, 130, 246, 0.3); }
.alert-dismissible .btn-close { filter: brightness(0) invert(0.6); }

/* ====== Pagination ====== */
.pagination .page-link {
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-color);
    font-size: 13px;
    padding: 6px 14px;
    transition: all var(--transition-speed);
}
.pagination .page-link:hover {
    background: var(--bg-hover);
    color: #fff;
    border-color: var(--primary);
}
.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary), #2563eb);
    border-color: var(--primary);
    color: #fff;
}
.pagination .page-item.disabled .page-link {
    opacity: 0.4;
    background: transparent;
}

/* ====== Badge ====== */
.badge {
    font-weight: 500;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}
.bg-success {
    background: linear-gradient(135deg, var(--accent-green), #16a34a) !important;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.2);
}
.bg-warning {
    background: linear-gradient(135deg, var(--accent-orange), #d97706) !important;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.2);
}
.bg-primary {
    background: linear-gradient(135deg, var(--primary), #2563eb) !important;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.2);
}
.bg-secondary {
    background: linear-gradient(135deg, #475569, #334155) !important;
}

/* ====== Text & Links ====== */
a { color: var(--primary); transition: color var(--transition-speed); }
a:hover { color: var(--accent-cyan); }
.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--accent-green) !important; }
.text-danger { color: #ef4444 !important; }
.text-info { color: var(--accent-cyan) !important; }
.text-warning { color: var(--accent-orange) !important; }
.fw-bold { color: #fff; }

/* ====== Table border color override ====== */
.table { --bs-table-bg: transparent; --bs-table-color: var(--text-primary); }
.table > :not(caption) > * > * { background: transparent; }

/* ====== Modal Backdrop ====== */
.modal-backdrop { background: rgba(0,0,0,0.6); }

/* ====== Year Badge (Metrics) ====== */
.year-badge {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border-color);
    color: var(--accent-cyan);
    font-size: 12px;
    margin-bottom: 20px;
}

/* ====== Download Button ====== */
.download-area button {
    padding: 10px 32px;
    border-radius: 25px;
    font-size: 14px;
    border: 1px solid var(--border-glow);
    background: rgba(59, 130, 246, 0.08);
    color: var(--accent-cyan);
    transition: all var(--transition-speed);
    cursor: pointer;
}
.download-area button:hover {
    background: rgba(59, 130, 246, 0.15);
    box-shadow: 0 0 20px var(--primary-glow);
}

/* ====== Chart Card ====== */
#monthlyChart, #metricsChart {
    background: transparent;
}

/* ====== Responsive ====== */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar span { display: none; }
    .sidebar-brand span { display: none; }
    .main-content { margin-left: 60px; }
    .topbar { left: 60px; }
    .login-card { width: 90%; padding: 30px 20px; }
    .stat-value { font-size: 20px; }
}