/* =========================================================
   CRM Simon Communications — Thème "SaaS structuré"
   Identité de marque (boutons, nav active, liens) : noir/gris
   Palette vive réservée aux données (icônes de stats, badges,
   graphiques) pour donner de la structure visuelle sans dévier
   de l'identité du logo.
   ========================================================= */

:root {
    /* Couleurs de marque */
    --color-bg:        #F5F6F8;
    --color-surface:   #FFFFFF;
    --color-surface-2: #EEF0F3;
    --color-text:      #16171A;
    --color-text-soft: #6B7280;
    --color-border:    #E2E4E9;
    --color-border-strong: #D1D5DB;

    --color-brand:       #16171A;
    --color-brand-hover: #2C2E33;

    --data-blue:   #3B82F6;
    --data-blue-bg:   #EAF1FE;
    --data-purple: #8B5CF6;
    --data-purple-bg: #F1EBFE;
    --data-green:  #10B981;
    --data-green-bg:  #E6F8F1;
    --data-orange: #F59E0B;
    --data-orange-bg: #FEF3E0;
    --data-pink:   #EC4899;
    --data-pink-bg:   #FDEAF3;
    --data-teal:   #06B6D4;
    --data-teal-bg:   #E3F8FC;
    --data-red:    #EF4444;
    --data-red-bg:    #FDEAEA;

    --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", sans-serif;
    --font-body:     -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", sans-serif;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --shadow-card: 0 1px 2px rgba(16,17,20,0.04), 0 6px 16px rgba(16,17,20,0.06);
    --shadow-elevated: 0 20px 60px rgba(16,17,20,0.14);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 8px 0;
}
h1 { font-size: 26px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }

a { color: var(--color-brand); text-decoration: none; font-weight: 500; }
a:hover { text-decoration: underline; }

p { color: var(--color-text-soft); line-height: 1.55; }

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 248px;
    flex-shrink: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 10px 20px 10px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}
.sidebar .brand .mark {
    width: 32px; height: 32px;
    background: var(--color-brand);
    color: #fff;
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 18px;
}
.sidebar .brand .name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
}
.sidebar .brand .name small {
    display: block;
    font-weight: 500;
    color: var(--color-text-soft);
    font-size: 11px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--color-text);
    font-size: 13.5px;
    font-weight: 500;
}
.nav-link:hover { background: var(--color-surface-2); text-decoration: none; }
.nav-link.active {
    background: var(--color-brand);
    color: #fff;
    box-shadow: 0 4px 10px rgba(22,23,26,0.18);
}
.nav-link .icon {
    width: 22px; height: 22px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
    background: var(--color-surface-2);
    font-size: 12px;
}
.nav-link.active .icon { background: rgba(255,255,255,0.16); }

.nav-section-label {
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-soft);
    padding: 18px 12px 6px 12px;
}

.main {
    flex: 1;
    padding: 28px 36px 40px;
    max-width: 1280px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.topbar .user-chip {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--color-text-soft);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 7px 14px;
    border-radius: 980px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 22px 24px;
    box-shadow: var(--shadow-card);
    margin-bottom: 18px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 16px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.stat-card .stat-icon {
    width: 40px; height: 40px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
}
.stat-card .stat-icon.c-blue   { background: var(--data-blue-bg);   color: var(--data-blue); }
.stat-card .stat-icon.c-purple { background: var(--data-purple-bg); color: var(--data-purple); }
.stat-card .stat-icon.c-green  { background: var(--data-green-bg);  color: var(--data-green); }
.stat-card .stat-icon.c-orange { background: var(--data-orange-bg); color: var(--data-orange); }
.stat-card .stat-icon.c-pink   { background: var(--data-pink-bg);   color: var(--data-pink); }
.stat-card .stat-icon.c-teal   { background: var(--data-teal-bg);   color: var(--data-teal); }

.stat-card .stat-value {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.stat-card .stat-label {
    font-size: 12.5px;
    color: var(--color-text-soft);
    font-weight: 500;
}
.stat-card .stat-delta {
    font-size: 11.5px;
    font-weight: 700;
    color: var(--data-green);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 10px;
    font-size: 13.5px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: var(--font-body);
    transition: background 0.15s ease, transform 0.05s ease;
}
.btn-primary { background: var(--color-brand); color: #fff; }
.btn-primary:hover { background: var(--color-brand-hover); text-decoration: none; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover { background: var(--color-surface-2); text-decoration: none; }
.btn-danger { background: var(--data-red-bg); color: var(--data-red); border-color: transparent; }
.btn-danger:hover { background: #FCD9D9; text-decoration: none; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 8px; }

label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-body);
    background: var(--color-surface);
    color: var(--color-text);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 3px rgba(22,23,26,0.08);
}
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--color-text-soft); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; padding: 10px 12px; border-bottom: 1.5px solid var(--color-border-strong); background: var(--color-surface-2); }
th:first-child { border-top-left-radius: 8px; }
th:last-child { border-top-right-radius: 8px; }
td { padding: 12px; border-bottom: 1px solid var(--color-border); }
tr:hover td { background: #FAFBFC; }

.badge { display: inline-block; padding: 4px 11px; border-radius: 980px; font-size: 11.5px; font-weight: 700; }
.badge-brouillon { background: var(--color-surface-2); color: var(--color-text-soft); }
.badge-envoyee   { background: var(--data-blue-bg); color: var(--data-blue); }
.badge-vue       { background: var(--data-orange-bg); color: var(--data-orange); }
.badge-signee    { background: var(--data-green-bg); color: var(--data-green); }
.badge-refusee, .badge-expiree { background: var(--data-red-bg); color: var(--data-red); }

.tabs { display: flex; gap: 4px; border-bottom: 1.5px solid var(--color-border); margin-bottom: 20px; }
.tab { padding: 10px 16px; font-size: 13.5px; font-weight: 600; color: var(--color-text-soft); border-bottom: 2.5px solid transparent; cursor: pointer; }
.tab.active { color: var(--color-text); border-bottom-color: var(--color-brand); }

.flash { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 13.5px; font-weight: 500; border: 1px solid transparent; }
.flash-success { background: var(--data-green-bg); color: #0D7A56; border-color: rgba(16,185,129,0.25); }
.flash-error   { background: var(--data-red-bg); color: #B91C1C; border-color: rgba(239,68,68,0.25); }

.login-shell {
    min-height: 100vh;
    display: flex;
    background: var(--color-bg);
}
.login-visual {
    flex: 1.2;
    background:
        radial-gradient(circle at 20% 20%, rgba(255,255,255,0.9), transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(210,210,215,0.7), transparent 45%),
        linear-gradient(135deg, #EAEAEC 0%, #D6D6DA 40%, #F4F4F6 70%, #C9C9CE 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.login-visual .giant-s {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 380px;
    color: rgba(22,23,26,0.92);
    line-height: 1;
    filter: drop-shadow(0 30px 60px rgba(0,0,0,0.15));
}
.login-form-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}
.login-box { width: 100%; max-width: 360px; }
.login-box h1 { font-size: 24px; margin-bottom: 4px; }
.login-box .subtitle { color: var(--color-text-soft); font-size: 14px; margin-bottom: 28px; }

.trend-chart-wrap { padding: 4px 0 0; }
.trend-chart-wrap svg { width: 100%; height: auto; display: block; }
.trend-legend { display: flex; gap: 20px; font-size: 12px; color: var(--color-text-soft); margin-top: 8px; }
.trend-legend .dot { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:6px; }