/* ── Variables ── */
:root {
    --primary:       #7c3aed;
    --primary-dark:  #5b21b6;
    --primary-light: #ede9fe;
    --success:       #16a34a;
    --error:         #dc2626;
    --text:          #1f2937;
    --text-light:    #6b7280;
    --border:        #e5e7eb;
    --bg:            #f9fafb;
    --white:         #ffffff;
    --radius:        8px;
    --shadow:        0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:     0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Navbar ── */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--primary);
    font-size: 1rem;
}

.nav-logo { height: 36px; }

/* ── Boutons ── */
.btn-primary,
.btn-secondary,
.btn-logout {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background 0.15s, color 0.15s;
    font-family: inherit;
}

.btn-primary  { background: var(--primary); color: var(--white); }
.btn-primary:hover  { background: var(--primary-dark); }

.btn-secondary { background: var(--white); color: var(--primary); border: 1px solid var(--primary); }
.btn-secondary:hover { background: var(--primary-light); }

.btn-logout {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border);
    padding: 7px 14px;
    font-size: 0.85rem;
}
.btn-logout:hover { background: var(--bg); color: var(--text); }

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: var(--bg); color: var(--primary); }

.nav-badge {
    background: var(--primary);
    color: var(--white);
    border-radius: 10px;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 1px 6px;
    line-height: 1.5;
}

.btn-remove {
    background: transparent;
    border: none;
    color: var(--error);
    cursor: pointer;
    font-size: 0.82rem;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.15s;
}
.btn-remove:hover { background: #fef2f2; }

.btn-full  { width: 100%; }
.btn-large { padding: 13px 32px; font-size: 1rem; }

/* ── Formulaire ── */
.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--text);
    background: var(--white);
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,58,237,.12);
}

.input-readonly {
    background: var(--bg) !important;
    color: var(--text-light) !important;
    cursor: default;
}

.form-row   { display: grid; grid-template-columns: 1fr 1fr;     gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Cards ── */
.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--primary-light);
}

/* ── Page layout ── */
.page-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; }

/* ── Login ── */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-md);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo { height: 70px; margin-bottom: 12px; }

.login-header h1 { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.login-header p  { color: var(--text-light); font-size: 0.9rem; margin-top: 4px; }

/* ── Lignes de prestation ── */
.ligne-prestation {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
}

.ligne-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.ligne-num {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--primary);
}

.ligne-total {
    text-align: right;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--border);
}

.ligne-total-value { color: var(--text); font-size: 1rem; font-weight: 600; }

/* ── Totaux ── */
.totaux-card {
    max-width: 380px;
    margin-left: auto;
    margin-bottom: 20px;
    padding: 16px 20px;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 9px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
}

.total-row:last-child { border-bottom: none; }

.total-final {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--primary);
    padding-top: 12px;
}

/* ── Actions du formulaire ── */
.form-actions {
    text-align: right;
    margin-bottom: 40px;
}

/* ── Succès ── */
.succes-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 62px);
    padding: 20px;
}

.succes-card {
    background: var(--white);
    border-radius: 12px;
    padding: 48px 40px;
    text-align: center;
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-md);
}

.succes-icon {
    width: 64px;
    height: 64px;
    background: #dcfce7;
    color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.succes-card h1 { font-size: 1.4rem; margin-bottom: 10px; }
.succes-card p  { color: var(--text-light); margin-bottom: 16px; }
.succes-detail  { font-size: 0.9rem; margin-bottom: 20px; padding: 8px 14px; border-radius: var(--radius); }
.succes-ok      { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }
.succes-warn    { background: #fef2f2; color: var(--error);   border: 1px solid #fecaca; }

.btn-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Pending factures ── */
.pending-card { border-left: 3px solid var(--primary); }

.pending-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}
.pending-row:last-child { border-bottom: none; }

.pending-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.pending-numero { font-weight: 700; color: var(--primary); font-size: 0.9rem; }
.pending-client { color: var(--text); }
.pending-montant { color: var(--text-light); font-size: 0.875rem; }

.btn-sm { padding: 6px 14px; font-size: 0.85rem; white-space: nowrap; }

/* ── Alertes ── */
.alert {
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-error   { background: #fef2f2; color: var(--error);   border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }

.flash-messages {
    max-width: 900px;
    margin: 16px auto 0;
    padding: 0 20px;
}

/* ── Prévisualisation devis ── */
.preview-subtitle { color: var(--text-light); margin-top: 6px; }

.preview-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    padding: 0;
    overflow: hidden;
}
.preview-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    border-bottom: 1px solid var(--border);
    width: 100%;
    font-size: 0.95rem;
}
.preview-meta-row:last-child { border-bottom: none; }
.preview-meta-label { color: var(--text-light); }
.preview-meta-val   { font-weight: 500; }
.preview-total      { font-size: 1.1rem; color: var(--primary); }

.preview-pdf-wrap {
    margin-top: 24px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: #fff;
}
.preview-iframe {
    width: 100%;
    height: 780px;
    border: none;
    display: block;
}

.preview-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    gap: 16px;
    flex-wrap: wrap;
}