:root {
    --color-primary: #4297ff;
    --color-primary-dark: #2f7de0;
    --color-text: #4c4c4c;
    --color-text-light: #7a7f87;
    --color-bg: #f5f7fa;
    --color-surface: #ffffff;
    --color-border: #e3e6ea;
    --color-danger: #e5484d;
    --color-danger-bg: #fdeceb;
    --color-success: #2fb344;
    --color-success-bg: #eaf8ec;
    --radius: 10px;
    --radius-sm: 6px;
    --header-h: 60px;
    --footer-h: 48px;
    --font-base: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    font-family: var(--font-base);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ---------- Layout applicatif (admin / console) ---------- */
.app-header {
    position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px; z-index: 100;
}
.app-header__logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--color-text); }
.app-header__logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-primary); }
.app-header__right { display: flex; align-items: center; gap: 10px; }

.burger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    border: 1px solid var(--color-border); background: var(--color-surface);
    cursor: pointer; font-size: 20px; color: var(--color-text);
}
.burger:hover { background: var(--color-bg); }

.app-nav {
    position: fixed; top: var(--header-h); right: -280px; width: 280px; height: calc(100% - var(--header-h) - var(--footer-h));
    background: var(--color-surface); border-left: 1px solid var(--color-border);
    padding: 16px; transition: right .25s ease; overflow-y: auto; z-index: 99;
}
.app-nav.open { right: 0; }
.app-nav a {
    display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius-sm);
    color: var(--color-text); font-size: 15px; margin-bottom: 4px;
}
.app-nav a:hover, .app-nav a.active { background: var(--color-bg); text-decoration: none; color: var(--color-primary-dark); }
.app-nav__section { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-light); margin: 14px 6px 6px; }
.app-nav__overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.25); z-index: 98; }
.app-nav__overlay.open { display: block; }

.app-main { padding: calc(var(--header-h) + 20px) 20px calc(var(--footer-h) + 20px); max-width: 1100px; margin: 0 auto; min-height: 100%; }

.app-footer {
    position: fixed; bottom: 0; left: 0; right: 0; height: var(--footer-h);
    background: var(--color-surface); border-top: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px; font-size: 12px; color: var(--color-text-light); z-index: 100; gap: 12px;
}
.app-footer__left, .app-footer__right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.app-footer a { color: var(--color-text-light); }

@media (min-width: 900px) {
    .app-nav { position: static; width: auto; height: auto; background: transparent; border: 0; padding: 0; display: flex; flex-direction: row; gap: 2px; }
    .app-nav__section { display: none; }
    .app-nav a { padding: 8px 12px; margin: 0; }
    .burger { display: none; }
    .app-nav__overlay { display: none !important; }
}

/* ---------- Sélecteur de langue ---------- */
.lang-switch { position: relative; }
.lang-switch__toggle {
    display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 12px;
    border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface);
    color: var(--color-text); cursor: pointer; font-size: 13px; font-weight: 600;
}
.lang-switch__toggle:hover { background: var(--color-bg); }
.lang-switch__menu {
    list-style: none; margin: 6px 0 0; padding: 6px; position: absolute; right: 0; top: 100%;
    background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(0,0,0,.08); min-width: 140px; display: none; z-index: 200;
}
.lang-switch.open .lang-switch__menu { display: block; }
.lang-switch__menu a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--color-text); font-size: 14px; }
.lang-switch__menu a:hover, .lang-switch__menu a.is-active { background: var(--color-bg); text-decoration: none; color: var(--color-primary-dark); }

/* ---------- Cartes / composants ---------- */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.card h2, .card h3 { margin-top: 0; }
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 700px) { .grid-3 { grid-template-columns: 1fr; } }

.stat { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 18px; }
.stat__value { font-size: 30px; font-weight: 700; color: var(--color-primary-dark); }
.stat__label { font-size: 13px; color: var(--color-text-light); margin-top: 4px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-active { background: var(--color-success-bg); color: var(--color-success); }
.badge-pending { background: #fff6e0; color: #b8860b; }
.badge-disabled { background: var(--color-danger-bg); color: var(--color-danger); }

/* ---------- Formulaires ---------- */
.form-group { margin-bottom: 16px; }
label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=color], select, textarea {
    width: 100%; padding: 11px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    font-size: 15px; font-family: var(--font-base); background: var(--color-surface); color: var(--color-text);
}
input:focus, select:focus, textarea:focus { border-color: var(--color-primary); }
.checkbox-row { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; }
.checkbox-row input { margin-top: 3px; }
.form-hint { font-size: 12px; color: var(--color-text-light); margin-top: 4px; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 11px 18px; border-radius: var(--radius-sm); border: 1px solid transparent;
    font-size: 15px; font-weight: 600; cursor: pointer; font-family: var(--font-base);
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-bg); text-decoration: none; }
.btn-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.btn-danger:hover { background: #fbdadb; text-decoration: none; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Alertes / flash ---------- */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 14px; }
.alert-success { background: var(--color-success-bg); color: #1f7a30; }
.alert-error { background: var(--color-danger-bg); color: #b3262a; }
.alert-info { background: #eaf3ff; color: var(--color-primary-dark); }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-light); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.table-wrap { overflow-x: auto; }

/* ---------- Pages d'authentification (hors app) ---------- */
.auth-page { min-height: 100%; display: flex; flex-direction: column; }
.auth-topbar { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; }
.auth-wrap { flex: 1; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 100%; max-width: 420px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 32px; }
.auth-card h1 { font-size: 22px; margin: 0 0 20px; }
.auth-links { margin-top: 18px; font-size: 14px; text-align: center; }
.auth-footer { text-align: center; font-size: 12px; color: var(--color-text-light); padding: 16px; }
.auth-footer a { color: var(--color-text-light); margin: 0 6px; }

.otp-code-input { letter-spacing: .5em; font-size: 22px; text-align: center; font-weight: 700; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--color-text-light); }
.empty-state i { font-size: 32px; color: var(--color-primary); display: block; margin-bottom: 10px; }