/* ==========================================================================
   瑞邦智能凑单与开票平账系统 - Modern Premium Stylesheet
   ========================================================================== */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --success: #10b981;
    --success-light: #ecfdf5;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f8fafc;
    color: var(--slate-800);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

[v-cloak] {
    display: none;
}

/* ================= Navbar ================= */
.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-icon svg {
    width: 24px;
    height: 24px;
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: 0.8rem;
    color: var(--slate-500);
}

/* ================= Main Container ================= */
.main-container {
    max-width: 1280px;
    margin: 1.75rem auto;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ================= Cards ================= */
.card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.step-badge {
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-success {
    background: var(--success);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--slate-900);
}

.card-subtitle {
    font-size: 0.825rem;
    color: var(--slate-500);
}

.card-body {
    padding: 1.5rem;
}

/* ================= Dropzone ================= */
.dropzone {
    border: 2px dashed var(--slate-300);
    border-radius: var(--radius-lg);
    padding: 3.5rem 2rem;
    text-align: center;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.dropzone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropzone-icon svg {
    width: 34px;
    height: 34px;
}

.dropzone-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--slate-900);
    margin-bottom: 0.5rem;
}

.dropzone-desc {
    font-size: 0.9rem;
    color: var(--slate-500);
    max-width: 600px;
    margin: 0 auto 1.25rem;
}

.dropzone-tags {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.6rem;
    background: var(--slate-100);
    color: var(--slate-600);
    border-radius: var(--radius-sm);
}

/* ================= Health Grid ================= */
.health-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.health-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.health-label {
    font-size: 0.825rem;
    font-weight: 500;
    color: var(--slate-500);
    margin-bottom: 0.35rem;
}

.health-val {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 0.6rem;
    letter-spacing: -0.02em;
}

.health-sub {
    font-size: 0.775rem;
    color: var(--slate-500);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dashed var(--slate-200);
    padding-top: 0.6rem;
}

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.72rem;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }

.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-primary { color: var(--primary) !important; }
.text-muted { color: var(--slate-400) !important; }

/* ================= Forms & Inputs ================= */
.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.flex-1 { flex: 1; }

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--slate-700);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.label-tip {
    font-size: 0.75rem;
    font-weight: normal;
    color: var(--slate-400);
}

.input-control {
    height: 42px;
    padding: 0 0.75rem;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--slate-800);
    background: #ffffff;
    transition: all 0.2s ease;
    outline: none;
}

.input-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.select-control {
    cursor: pointer;
    background-color: #ffffff;
}

.input-prefix {
    position: relative;
    display: flex;
    align-items: center;
}

.input-prefix span {
    position: absolute;
    left: 0.75rem;
    color: var(--slate-400);
    font-weight: 600;
}

.input-prefix input {
    padding-left: 1.75rem;
    width: 100%;
}

/* ================= Toggle Group ================= */
.toggle-group {
    display: flex;
    background: var(--slate-100);
    padding: 4px;
    border-radius: var(--radius-md);
    gap: 4px;
}

.toggle-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--slate-600);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-btn.active {
    background: #ffffff;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ================= Split Panel ================= */
.split-panel {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.split-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.split-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--slate-900);
}

.split-subtitle {
    font-size: 0.8rem;
    color: var(--slate-500);
}

.split-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.split-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #ffffff;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
}

.split-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--slate-700);
    width: 65px;
}

.split-input-wrapper {
    flex: 1;
}

.split-auto-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 42px;
    padding: 0 0.75rem;
    background: var(--slate-100);
    border-radius: var(--radius-md);
    color: var(--slate-600);
}

.auto-badge {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.auto-amount {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--slate-800);
}

.split-summary-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--slate-200);
}

/* ================= Buttons ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: inherit;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}
.btn-success:hover { background: #059669; }

.btn-secondary {
    background: var(--slate-100);
    color: var(--slate-700);
    border: 1px solid var(--slate-200);
}
.btn-secondary:hover { background: var(--slate-200); }

.btn-ghost {
    background: transparent;
    color: var(--slate-600);
}
.btn-ghost:hover { background: var(--slate-100); }

.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-md { padding: 0.6rem 1.1rem; font-size: 0.9rem; }
.btn-lg { padding: 0.85rem 1.6rem; font-size: 1rem; }

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.calc-btn-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 0.5rem;
}

/* ================= Icons ================= */
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }

/* ================= Balance Banner ================= */
.balance-banner {
    background: linear-gradient(135deg, #064e3b, #065f46);
    color: white;
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-around;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 20px rgba(6, 78, 59, 0.2);
}

.balance-item {
    display: flex;
    flex-direction: column;
}

.bal-label {
    font-size: 0.8rem;
    color: #a7f3d0;
}

.bal-val {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.balance-arrow {
    font-size: 1.5rem;
    color: #34d399;
}

.balance-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

.perfect-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: #10b981;
    color: white;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ================= Tabs ================= */
.invoice-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--slate-200);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    overflow-x: auto;
}

.tab-btn {
    padding: 0.6rem 1rem;
    border: none;
    background: var(--slate-100);
    color: var(--slate-600);
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--slate-800);
    color: white;
}

.tab-badge {
    font-size: 0.75rem;
    padding: 0.15rem 0.4rem;
    background: rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
}

.tab-btn.active .tab-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ================= Data Table ================= */
.table-wrapper {
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #ffffff;
}

.table-info-bar {
    padding: 0.75rem 1rem;
    background: var(--slate-50);
    border-bottom: 1px solid var(--slate-200);
    font-size: 0.85rem;
    display: flex;
    gap: 1.5rem;
    color: var(--slate-600);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    background: var(--slate-100);
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--slate-700);
    text-align: left;
    border-bottom: 1px solid var(--slate-200);
}

.data-table td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--slate-100);
    color: var(--slate-700);
}

.data-table tr:hover {
    background: var(--slate-50);
}

.text-right { text-align: right !important; }
.text-center { text-align: center !important; }

.highlight-col {
    background: #f8fafc;
}

.tag-dish {
    font-size: 0.72rem;
    color: var(--primary);
    background: var(--primary-light);
    padding: 0.1rem 0.35rem;
    border-radius: var(--radius-sm);
    margin-left: 0.4rem;
}

.delta-tag {
    font-size: 0.72rem;
    color: var(--success);
    background: var(--success-light);
    padding: 0.1rem 0.35rem;
    border-radius: var(--radius-sm);
    margin-left: 0.3rem;
}

.table-pagination {
    padding: 0.75rem 1rem;
    text-align: center;
    background: var(--slate-50);
    font-size: 0.8rem;
    color: var(--slate-400);
}

/* ================= Footer ================= */
.footer {
    text-align: center;
    padding: 2rem 0;
    font-size: 0.8rem;
    color: var(--slate-400);
    border-top: 1px solid var(--slate-200);
    margin-top: 3rem;
}