/* COACHIANG - Minimal Reset */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; }
img { max-width: 100%; }

/* Flash messages */
.flash {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    padding: 0.875rem 1.25rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    max-width: 420px;
    animation: flashIn 0.3s ease;
}
.flash-success  { background: #D1FAE5; color: #065F46; border: 1px solid #6EE7B7; }
.flash-warning  { background: #FEF3C7; color: #92400E; border: 1px solid #FCD34D; }
.flash-error    { background: #FEE2E2; color: #991B1B; border: 1px solid #FCA5A5; }
.flash-info     { background: #DBEAFE; color: #1E40AF; border: 1px solid #93C5FD; }

@keyframes flashIn {
    from { opacity: 0; transform: translateX(1rem); }
    to   { opacity: 1; transform: translateX(0); }
}