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

:root {
    --color-primary:    #4F46E5;
    --color-primary-h:  #4338CA;
    --color-danger:     #DC2626;
    --color-success:    #16A34A;
    --color-warning:    #CA8A04;
    --color-gray-50:    #F9FAFB;
    --color-gray-100:   #F3F4F6;
    --color-gray-200:   #E5E7EB;
    --color-gray-300:   #D1D5DB;
    --color-gray-500:   #6B7280;
    --color-gray-700:   #374151;
    --color-gray-900:   #111827;
    --color-white:      #FFFFFF;
    --radius-sm: 6px;
    --radius:    10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.10);
    --shadow:    0 4px 12px rgba(0,0,0,.12);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.15);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --transition: .18s ease;
}

html { font-size: 16px; }
body {
    font-family: var(--font);
    color: var(--color-gray-900);
    background: var(--color-gray-50);
    line-height: 1.6;
    min-height: 100vh;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .4em;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    white-space: nowrap;
    text-decoration: none !important;
}
.btn-primary  { background: var(--color-primary);  color: #fff; }
.btn-primary:hover { background: var(--color-primary-h); }
.btn-secondary { background: var(--color-white); border-color: var(--color-gray-300); color: var(--color-gray-700); }
.btn-secondary:hover { background: var(--color-gray-100); }
.btn-ghost  { background: transparent; color: var(--color-gray-700); }
.btn-ghost:hover { background: var(--color-gray-100); }
.btn-danger { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover { background: #B91C1C; }
.btn-sm  { padding: .35rem .8rem; font-size: .83rem; }
.btn-xs  { padding: .2rem .55rem; font-size: .78rem; }
.btn-full { width: 100%; justify-content: center; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ─── Forms ────────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--color-gray-700); }
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group textarea,
.form-group select {
    padding: .5rem .75rem;
    border: 1.5px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-size: .95rem;
    font-family: var(--font);
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--color-white);
    color: var(--color-gray-900);
    width: 100%;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}
.form-group--inline { flex-direction: row; align-items: center; }
.toggle-label { display: flex; align-items: center; gap: .5rem; cursor: pointer; font-size: .9rem; font-weight: 500; }
.toggle-label input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; accent-color: var(--color-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-actions { display: flex; align-items: center; gap: .75rem; margin-top: .5rem; }
.form-card { background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }

/* ─── Alerts ───────────────────────────────────────────────────────────────── */
.alert { padding: .75rem 1rem; border-radius: var(--radius-sm); font-size: .9rem; }
.alert-error   { background: #FEF2F2; border: 1px solid #FECACA; color: #991B1B; }
.alert-success { background: #F0FDF4; border: 1px solid #BBF7D0; color: #166534; }

/* ─── Badges ───────────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: .15em .55em;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 600;
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}
.badge-green { background: #DCFCE7; color: #166534; }
.badge-red   { background: #FEE2E2; color: #991B1B; }
.badge-gray  { background: var(--color-gray-200); color: var(--color-gray-500); }

/* ─── Save status ──────────────────────────────────────────────────────────── */
.save-status { font-size: .82rem; color: var(--color-success); opacity: 0; transition: opacity .4s; }
.save-status.visible { opacity: 1; }
.save-status.error { color: var(--color-danger); }