/* ============================================================================
   FundusTracker — couche de thème (raffinement visuel + accessibilité).
   Additive : se charge après style.css (ordre alphabétique). Purement
   présentationnel, aucune logique applicative modifiée.
   Registre volontairement sobre : pas de dégradés décoratifs, pas de
   glassmorphism, ombres discrètes, rayons mesurés.
   ============================================================================ */

:root {
    --ft-bg: #eef1f4;
    --ft-surface: #ffffff;
    --ft-surface-2: #f5f7f9;
    --ft-border: #dfe3e8;
    --ft-border-strong: #cdd3da;
    --ft-text: #232a31;
    --ft-muted: #6b757e;
    --ft-primary: #2c3e50;   /* navy FLATLY, déjà la couleur des boutons */
    --ft-accent: #18bc9c;     /* teal FLATLY, déjà présent dans l'app */
    --ft-shadow: 0 1px 2px rgba(20, 28, 36, .05);
    --ft-shadow-soft: 0 1px 3px rgba(20, 28, 36, .06), 0 1px 1px rgba(20, 28, 36, .04);
    --ft-radius: 8px;
    --ft-ring: 0 0 0 2px #fff, 0 0 0 4px rgba(44, 62, 80, .45);
}

/* --- Base --- */
body {
    background-color: var(--ft-bg);
    color: var(--ft-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* --- Onglets (dcc.Tabs) --- */
#tabs {
    border: 1px solid var(--ft-border) !important;
    background-color: var(--ft-surface) !important;
    border-radius: var(--ft-radius);
    overflow: hidden;
    box-shadow: var(--ft-shadow);
}
#tabs .tab {
    border: none !important;
    background: var(--ft-surface) !important;
    color: var(--ft-muted) !important;
    font-weight: 500;
    padding: 14px 12px !important;
    transition: color .12s ease, background-color .12s ease;
}
#tabs .tab:hover {
    background: var(--ft-surface-2) !important;
    color: var(--ft-text) !important;
}
#tabs .tab--selected {
    color: var(--ft-primary) !important;
    font-weight: 600;
    box-shadow: inset 0 -2px 0 0 var(--ft-primary) !important;
    border-top: none !important;
}

/* --- Cartes --- */
.card {
    border: 1px solid var(--ft-border) !important;
    border-radius: var(--ft-radius) !important;
    box-shadow: var(--ft-shadow-soft);
}

/* --- Boutons : rayon et états sobres --- */
.btn {
    border-radius: 6px;
    font-weight: 500;
}
.btn:active { transform: translateY(.5px); }

/* Accessibilité : anneau de focus visible au clavier uniquement. */
.btn:focus-visible,
a:focus-visible,
.form-control:focus-visible,
.tab:focus-visible {
    outline: none !important;
    box-shadow: var(--ft-ring) !important;
}

/* --- Champs de formulaire --- */
.form-control, .form-select {
    border-radius: 6px;
    border-color: var(--ft-border-strong);
}
.form-control:focus, .form-select:focus {
    border-color: var(--ft-primary);
    box-shadow: 0 0 0 2px rgba(44, 62, 80, .14);
}

/* --- Zone d'upload --- */
.upload-area {
    border: 1px dashed var(--ft-border-strong) !important;
    border-radius: var(--ft-radius) !important;
    background-color: var(--ft-surface-2) !important;
    color: var(--ft-muted) !important;
    transition: border-color .12s ease, background-color .12s ease;
}
.upload-area:hover {
    border-color: var(--ft-primary) !important;
    background-color: #eef1f4 !important;
    color: var(--ft-text) !important;
}

/* --- Conteneur de travail (pages d'annotation) --- */
.dashboard-container {
    background-color: var(--ft-surface) !important;
    border: 1px solid var(--ft-border) !important;
    border-radius: var(--ft-radius);
    box-shadow: var(--ft-shadow);
}

/* --- Pied de page --- */
.footer {
    background-color: var(--ft-primary) !important;
}

/* --- Barre de défilement discrète --- */
* { scrollbar-width: thin; scrollbar-color: #c6cdd5 transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-thumb {
    background: #c6cdd5;
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: #aeb6c0; background-clip: content-box; }

/* ============================================================================
   Aide des raccourcis clavier (shortcuts_help.js)
   ============================================================================ */
.ft-shortcuts-btn {
    position: fixed;
    right: 16px;
    bottom: 16px;
    width: 30px;
    height: 30px;
    border-radius: 6px;
    border: 1px solid var(--ft-border-strong);
    background: var(--ft-surface);
    color: var(--ft-muted);
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--ft-shadow-soft);
    z-index: 1080;
    transition: color .12s ease, border-color .12s ease;
}
.ft-shortcuts-btn:hover { color: var(--ft-text); border-color: var(--ft-muted); }
.ft-shortcuts-btn:focus-visible { outline: none; box-shadow: var(--ft-ring); }

.ft-shortcuts-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 28, 36, .4);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1090;
}
.ft-shortcuts-overlay.is-open { display: flex; }

.ft-shortcuts-panel {
    background: var(--ft-surface);
    border: 1px solid var(--ft-border);
    border-radius: var(--ft-radius);
    box-shadow: 0 8px 28px rgba(20, 28, 36, .18);
    width: min(440px, 92vw);
    max-height: 86vh;
    overflow: auto;
    padding: 16px 18px 14px;
}
.ft-shortcuts-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    font-weight: 600;
    color: var(--ft-text);
    font-size: .98rem;
}
.ft-shortcuts-subtitle {
    color: var(--ft-muted);
    font-size: .8rem;
    margin: 2px 0 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--ft-border);
}
.ft-shortcuts-close {
    border: none;
    background: transparent;
    color: var(--ft-muted);
    font-size: 1rem;
    cursor: pointer;
    line-height: 1;
    padding: 2px 4px;
}
.ft-shortcuts-close:hover { color: var(--ft-text); }

.ft-shortcuts-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 6px 0;
}
.ft-shortcuts-keys {
    flex: 0 0 96px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.ft-shortcuts-sep { color: var(--ft-muted); font-size: .78rem; }
.ft-shortcuts-label { color: var(--ft-text); font-size: .9rem; }
.ft-shortcuts-en { color: var(--ft-muted); font-size: .8rem; }
.ft-shortcuts-hint {
    margin-top: 10px;
    padding-top: 9px;
    border-top: 1px solid var(--ft-border);
    color: var(--ft-muted);
    font-size: .76rem;
}
.ft-shortcuts-panel kbd {
    background: var(--ft-surface-2);
    border: 1px solid var(--ft-border-strong);
    border-bottom-width: 2px;
    border-radius: 4px;
    padding: 1px 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .78rem;
    color: var(--ft-text);
    min-width: 20px;
    text-align: center;
}

/* --- Respect des préférences d'animation réduite --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .001ms !important;
        transition-duration: .001ms !important;
    }
}