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

html {
    min-height: 100%;
    background: var(--color-bg);
    -webkit-text-size-adjust: 100%;
}

body {
    min-width: 20rem;
    font-family: var(--font-base);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--space-md);
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-text);
}
h1 { font-weight: 700; }

/* Éléments de formulaire de base */
input, select, textarea, button { font-family: inherit; font-size: 1rem; }
button, input, select, textarea { min-height: var(--touch-target); }
input, select, textarea {
    max-width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-card);
    color: var(--color-text);
}
textarea { min-height: 7rem; padding: var(--space-sm); resize: vertical; }

:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }

.skip-link {
    position: fixed;
    z-index: 100;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    color: #fff;
    background: var(--color-text);
    border-radius: var(--radius-sm);
    transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-target);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.15s, transform 0.15s;
}
.btn:hover { background-color: var(--color-primary-hover); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { color: white; }
.btn-muted { background-color: var(--color-text-muted); }

.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.text-muted { color: var(--color-text-muted); }
table { width: 100%; max-width: 100%; border-collapse: collapse; }
th, td { padding: var(--space-sm); border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
th { font-weight: 700; }
.table-responsive { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); align-items: end; }
.form-grid label { display: block; margin-bottom: var(--space-xs); font-weight: 600; }
.form-grid input, .form-grid select, .form-grid textarea { width: 100%; padding: var(--space-sm); }
.form-span, .form-actions { grid-column: 1 / -1; }
.form-actions { display: flex; justify-content: flex-end; }
.alert { padding: var(--space-md); margin-bottom: var(--space-md); border-radius: var(--radius-sm); }
.alert-success { color: #14532d; background: #dcfce7; border: 1px solid #86efac; }
.alert-danger { color: #7f1d1d; background: #fee2e2; border: 1px solid #fca5a5; }
.metric { margin: 0; font-size: clamp(2rem, 6vw, 3rem); font-weight: 700; line-height: 1; }
.metric-small { font-size: 1.15rem; font-weight: 700; }
button:disabled { cursor: not-allowed; opacity: 0.5; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 0.8rem; font-weight: 600; }
.badge-paid, .badge-sap { background: var(--color-success); color: white; }
.badge-unpaid { background: var(--color-warning); color: #333; }
.badge-pro { background: var(--color-primary); color: white; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}