/* ==========================================================================
   Refacturation MSP — Style utilitaire
   Aesthetic: Industrial/utilitarian, clair, dense mais lisible
   Fonts: IBM Plex Sans (texte) + IBM Plex Mono (chiffres)
   ========================================================================== */

:root {
    --color-bg: #fafaf9;
    --color-surface: #ffffff;
    --color-surface-alt: #f5f5f4;
    --color-border: #e7e5e4;
    --color-border-strong: #d6d3d1;
    --color-text: #1c1917;
    --color-text-muted: #78716c;
    --color-text-subtle: #a8a29e;

    --color-primary: #0f172a;
    --color-primary-hover: #1e293b;

    --color-accent: #c2410c;
    --color-accent-hover: #9a3412;

    --color-success: #166534;
    --color-success-bg: #dcfce7;
    --color-warning: #a16207;
    --color-warning-bg: #fef9c3;
    --color-danger: #991b1b;
    --color-danger-bg: #fee2e2;
    --color-info: #1e40af;
    --color-info-bg: #dbeafe;
    --color-neutral-bg: #f5f5f4;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.04);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.06);

    --radius: 6px;
    --radius-sm: 4px;
    --radius-lg: 10px;
    --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "IBM Plex Mono", "Menlo", "Consolas", monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0;
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s;
}
a:hover { border-color: currentColor; }

h1, h2, h3, h4 {
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: -0.01em;
}
h1 { font-size: 24px; margin: 0 0 8px 0; }
h2 { font-size: 18px; margin: 0 0 12px 0; }
h3 { font-size: 15px; margin: 0; }
h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); }

.muted { color: var(--color-text-muted); }
.small { font-size: 12px; }
.mono { font-family: var(--font-mono); font-feature-settings: "tnum" on; }
.num  { text-align: right; }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }

/* -------- Topbar -------- */
.topbar {
    background: var(--color-primary);
    color: #fafaf9;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 32px;
}
.brand {
    display: flex; align-items: center; gap: 10px;
    color: #fafaf9; border: none; font-weight: 600;
}
.brand:hover { border: none; opacity: 0.9; }
.brand-mark {
    color: var(--color-accent);
    font-size: 18px;
}
.brand-mark.large { font-size: 40px; display: block; }
.brand-name { letter-spacing: 0.02em; }
.topnav {
    display: flex; gap: 4px;
    flex: 1;
}
.topnav a {
    color: #d6d3d1;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 13px;
    font-weight: 500;
    display: inline-flex; align-items: center; gap: 8px;
    transition: background 0.15s, color 0.15s;
}
.topnav a:hover { background: rgba(255,255,255,0.06); color: #fff; border: none; }
.topnav a.active { background: rgba(194, 65, 12, 0.15); color: var(--color-accent); }
.topbar-right {
    display: flex; align-items: center; gap: 16px;
    font-size: 12px;
}
.user-info { color: #a8a29e; font-family: var(--font-mono); }
.logout { color: #a8a29e; border: none; font-size: 12px; }
.logout:hover { color: #fafaf9; border: none; }

.badge {
    background: var(--color-accent);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 999px;
    line-height: 1;
}

/* -------- Layout -------- */
.main {
    min-height: calc(100vh - 56px - 48px);
    padding: 32px 24px;
}
.container {
    max-width: 1400px;
    margin: 0 auto;
}
.container.narrow {
    max-width: 760px;
}
.footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}
.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 14px 24px;
    font-size: 12px;
    color: var(--color-text-muted);
    display: flex; justify-content: space-between;
}

/* -------- Cards -------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.page-header {
    margin-bottom: 24px;
    display: flex; justify-content: space-between; align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}
.page-subtitle {
    color: var(--color-text-muted);
    margin: 0;
    font-size: 13px;
}

/* -------- Alert box (for hero money amount) -------- */
.alert-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin-bottom: 24px;
    display: flex; flex-direction: column; gap: 8px;
}
.alert-box-danger {
    border-left-color: var(--color-danger);
    background: linear-gradient(to right, var(--color-danger-bg) 0%, var(--color-surface) 50%);
}
.alert-box-success {
    border-left-color: var(--color-success);
    background: linear-gradient(to right, var(--color-success-bg) 0%, var(--color-surface) 50%);
}
.alert-box-label {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    font-weight: 600;
}
.alert-box-amount {
    font-size: 36px;
    font-weight: 600;
    font-family: var(--font-mono);
    letter-spacing: -0.02em;
}
.alert-box-danger .alert-box-amount { color: var(--color-danger); }
.alert-box-success .alert-box-amount { color: var(--color-success); }
.alert-box-hint {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* -------- KPI grid -------- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}
.kpi {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex; flex-direction: column; gap: 4px;
    position: relative;
}
.kpi::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    border-radius: var(--radius) 0 0 var(--radius);
}
.kpi-ok::before      { background: var(--color-success); }
.kpi-warning::before { background: var(--color-warning); }
.kpi-danger::before  { background: var(--color-danger); }
.kpi-info::before    { background: var(--color-info); }

.kpi-value {
    font-size: 32px;
    font-weight: 600;
    font-family: var(--font-mono);
    line-height: 1;
    color: var(--color-text);
}
.kpi-label {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}
.kpi-detail {
    font-size: 12px;
    color: var(--color-text-subtle);
    font-family: var(--font-mono);
    margin-top: 4px;
}

/* -------- Action bar -------- */
.action-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

/* -------- Buttons -------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-strong);
    background: var(--color-surface);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s;
}
.btn:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-primary);
    border-bottom-color: var(--color-primary); /* override link underline */
}
.btn-primary {
    background: var(--color-primary);
    color: #fafaf9;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #fff;
}
.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--color-text-muted);
}
.btn-ghost:hover {
    background: var(--color-surface-alt);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* -------- Forms -------- */
form.stack { display: flex; flex-direction: column; gap: 16px; }
form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 500; }
form label > span { color: var(--color-text); }
form small { color: var(--color-text-subtle); font-weight: 400; }

input[type="text"], input[type="password"], input[type="number"], input[type="month"],
input[type="file"], select, textarea {
    font-family: var(--font-sans);
    font-size: 14px;
    padding: 9px 12px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.08);
}

.inline-form {
    display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap;
}
.inline-form label { flex-direction: column; }

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row label { flex: 1; min-width: 160px; }

/* -------- Alerts -------- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    border: 1px solid transparent;
    font-size: 13px;
}
.alert-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border-color: #86efac;
}
.alert-danger {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: #fca5a5;
}
.alert a { color: inherit; font-weight: 500; }

/* -------- Tables -------- */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.table th {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid var(--color-border-strong);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    background: var(--color-surface-alt);
}
.table td {
    padding: 12px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}
.table tbody tr:hover {
    background: var(--color-surface-alt);
}
.table .num { text-align: right; }

/* -------- Status badges -------- */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.status-ok            { background: var(--color-success-bg); color: var(--color-success); }
.status-under-billed  { background: var(--color-warning-bg); color: var(--color-warning); }
.status-not-billed    { background: var(--color-danger-bg); color: var(--color-danger); }
.status-no-mapping    { background: var(--color-info-bg); color: var(--color-info); }
.status-ignored       { background: var(--color-neutral-bg); color: var(--color-text-muted); }

/* -------- Entity pills -------- */
.entity-pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}
.entity-galos          { background: #ecfccb; border-color: #bef264; color: #365314; }
.entity-nancy_services { background: #dbeafe; border-color: #93c5fd; color: #1e3a8a; }
.entity-lisa           { background: #fce7f3; border-color: #f9a8d4; color: #831843; }

/* -------- Filter tabs -------- */
.filter-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 16px;
    overflow-x: auto;
}
.filter-tab {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--color-text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    font-weight: 500;
    white-space: nowrap;
    display: inline-flex; align-items: center; gap: 6px;
}
.filter-tab:hover { color: var(--color-text); border-bottom-color: var(--color-border-strong); }
.filter-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}
.filter-tab-count {
    background: var(--color-neutral-bg);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
}
.filter-tab.active .filter-tab-count { background: var(--color-accent); color: #fff; }

/* -------- Empty state -------- */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text-muted);
}
.empty-state h2 { color: var(--color-text); }
.empty-state.success h2 { color: var(--color-success); }

/* -------- Validation cards -------- */
.validation-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}
.validation-card-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}
.validation-card-header h3 { margin-bottom: 4px; }
.validation-card-header p  { margin: 0; font-size: 12px; }

.candidates h4 { margin-bottom: 10px; }
.candidate-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 14px;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    gap: 12px;
}
.candidate-row:hover {
    background: #fff7ed;
    border-color: #fdba74;
}
.candidate-info {
    display: flex; align-items: center; gap: 10px;
    flex: 1;
    flex-wrap: wrap;
}
.similarity-score {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--color-surface);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.manual-mapping {
    margin-top: 16px;
    padding: 14px 16px;
    background: var(--color-surface-alt);
    border-radius: var(--radius-sm);
}
.manual-mapping summary {
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    user-select: none;
}
.manual-mapping[open] summary { margin-bottom: 12px; color: var(--color-text); }

.details-box {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--color-surface-alt);
    padding: 8px;
    border-radius: var(--radius-sm);
    margin-top: 6px;
}
.details-box div { margin-bottom: 2px; }

details summary {
    cursor: pointer;
    color: var(--color-text-muted);
    font-size: 12px;
}
details summary:hover { color: var(--color-text); }

.steps { padding-left: 20px; }
.steps li { margin-bottom: 8px; }

/* -------- Login page -------- */
.login-body {
    background: linear-gradient(135deg, #fafaf9 0%, #f5f5f4 100%);
    min-height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-wrap {
    width: 100%;
    max-width: 400px;
}
.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow-md);
}
.login-header {
    text-align: center;
    margin-bottom: 28px;
}
.login-header h1 { margin-top: 12px; }
.login-header p { margin: 4px 0 0; }
.login-form { display: flex; flex-direction: column; gap: 16px; }
.login-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.login-form button { margin-top: 8px; padding: 12px; font-size: 14px; }